Updated version

Fix bug where Nomadnet crashes on empty lists

.dockerignore

@@ -0,0 +1 @@
+.gitignore

.github/workflows/publish-container.yml

@@ -0,0 +1,42 @@
+name: Create and publish a Docker image
+
+on:
+  push:
+    branches: ['master']
+    tags: ['*.*.*']
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -0,0 +1,26 @@
+FROM python:3.11-rc-alpine3.14 as build
+
+RUN apk add --no-cache build-base linux-headers libffi-dev cargo
+
+# Create a virtualenv that we'll copy to the published image
+RUN python -m venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+RUN pip3 install setuptools-rust pyopenssl cryptography
+
+COPY . /app/
+RUN cd /app/ && python3 setup.py install
+
+# Use multi-stage build, as we don't need rust compilation on the final image
+FROM python:3.11-rc-alpine3.14
+
+LABEL org.opencontainers.image.documentation="https://github.com/markqvist/NomadNet#nomad-network-daemon-with-docker"
+
+ENV PATH="/opt/venv/bin:$PATH"
+ENV PYTHONUNBUFFERED="yes"
+COPY --from=build /opt/venv /opt/venv
+
+VOLUME /root/.reticulum
+VOLUME /root/.nomadnetwork
+
+ENTRYPOINT ["nomadnet"]
+CMD ["--daemon"]

Makefile

@@ -0,0 +1,25 @@
+all: release
+
+clean:
+	@echo Cleaning...
+	-rm -r ./build
+	-rm -r ./dist
+
+remove_symlinks:
+	@echo Removing symlinks for build...
+	-rm ./LXMF
+	-rm ./RNS
+
+create_symlinks:
+	@echo Creating symlinks...
+	-ln -s ../Reticulum/RNS ./
+	-ln -s ../LXMF/LXMF ./
+
+build_wheel:
+	python3 setup.py sdist bdist_wheel
+
+release: remove_symlinks build_wheel create_symlinks
+
+upload:
+	@echo Uploading to PyPi...
+	twine upload dist/*

README.md

@@ -1,35 +1,29 @@
-Nomad Network
-==========
+# Nomad Network - Communicate Freely
 
-Communicate Freely.
+Off-grid, resilient mesh communication with strong encryption, forward secrecy and extreme privacy.
 
 ![Screenshot](https://github.com/markqvist/NomadNet/raw/master/docs/screenshots/1.png)
 
-The intention with this program is to provide a tool to that allows you to build private and resilient communications platforms that are in complete control and ownership of the people that use them.
+Nomad Network Allows you to build private and resilient communications platforms that are in complete control and ownership of the people that use them. No signups, no agreements, no handover of any data, no permissions and gatekeepers.
 
-Nomad Network is build on [LXMF](https://github.com/markqvist/LXMF) and [Reticulum](https://github.com/markqvist/Reticulum), which together provides the cryptographic mesh functionality and peer-to-peer message routing that Nomad Network relies on. This foundation also makes it possible to use the program over a very wide variety of communication mediums, from packet radio to gigabit fiber.
+Nomad Network is build on [LXMF](https://github.com/markqvist/LXMF) and [Reticulum](https://github.com/markqvist/Reticulum), which together provides the cryptographic mesh functionality and peer-to-peer message routing that Nomad Network relies on. This foundation also makes it possible to use the program over a very wide variety of communication mediums, from packet radio to fiber optics.
 
-Nomad Network does not need any connections to the public internet to work. In fact, it doesn't even need an IP or Ethernet network. You can use it entirely over packet radio, LoRa or even serial lines. But if you wish, you can bridge islanded Reticulum networks over the Internet or private ethernet networks, or you can build networks running completely over the Internet. The choice is yours.
+Nomad Network does not need any connections to the public internet to work. In fact, it doesn't even need an IP or Ethernet network. You can use it entirely over packet radio, LoRa or even serial lines. But if you wish, you can bridge islanded networks over the Internet or private ethernet networks, or you can build networks running completely over the Internet. The choice is yours.
+
+If you'd rather want to use an LXMF client with a graphical user interface, you may want to take a look at [Sideband](https://github.com/markqvist/sideband), which is available for Linux, Android and macOS.
 
 ## Notable Features
  - Encrypted messaging over packet-radio, LoRa, WiFi or anything else [Reticulum](https://github.com/markqvist/Reticulum) supports.
  - Zero-configuration, minimal-infrastructure mesh communication
+ - Distributed and encrypted message store holds messages for offline users
+ - Connectable nodes that can host pages and files
+ - Node-side generated pages with PHP, Python, bash or others
+ - Built-in text-based browser for interacting with contents on nodes
+ - An easy to use and bandwidth efficient markup language for writing pages
+ - Page caching in browser
 
 ## Current Status
-
-
-The current version of the program should be considered an alpha release. The program works well, but there will most probably be bugs and possibly sub-optimal performance in some scenarios. On the other hand, this is the ideal time to have an influence on the direction of the development of Nomad Network. To do so, join the discussion, report bugs and request features here on the GitHub project.
-
-Development is ongoing and current features being implemented are:
-
- - Propagated messaging and discussion threads
- - Connectable nodes that can host pages, files and other resources
- - Collaborative information sharing and spatial map-style "wikis"
-
-## Dependencies:
- - Python 3
- - RNS
- - LXMF
+The current version of the program should be considered a beta release. The program works well, but there will most probably be bugs and possibly sub-optimal performance in some scenarios. On the other hand, this is the ideal time to have an influence on the direction of the development of Nomad Network. To do so, join the discussion, report bugs and request features here on the GitHub project.
 
 ## How do I get started?
 The easiest way to install Nomad Network is via pip:
@@ -40,9 +34,119 @@ pip3 install nomadnet
 
 # Run the client
 nomadnet
+
+# Or alternatively run as a daemon, with no user interface
+nomadnet --daemon
+
+# List options
+nomadnet --help
 ```
 
-To use Nomad Network on packet radio or LoRa, you will need to configure your Reticulum installation to use any relevant packet radio TNCs or LoRa devices on your system. See the Reticulum documentation for info.
+**Please Note**: If this is the very first time you use pip to install a program on your system, you might need to reboot your system for the program to become available. If you get a "command not found" error or similar when running the program, reboot your system and try again.
+
+The first time the program is running, you will be presented with the **Guide section**, which contains all the information you need to start using Nomad Network.
+
+To use Nomad Network on packet radio or LoRa, you will need to configure your Reticulum installation to use any relevant packet radio TNCs or LoRa devices on your system. See the [Reticulum documentation](https://markqvist.github.io/Reticulum/manual/interfaces.html) for info. For a general introduction on how to set up such a system, take a look at [this post](https://unsigned.io/private-messaging-over-lora/).
+
+If you want to try Nomad Network without building your own physical network, you can connect to the [Unsigned.io RNS Testnet](https://github.com/markqvist/Reticulum#public-testnet) over the Internet, where there is already some Nomad Network and LXMF activity. If you connect to the testnet, you can leave nomadnet running for a while and wait for it to receive announces from other nodes on the network that host pages or services, or you can try connecting directly to some nodes listed here:
+
+ - `abb3ebcd03cb2388a838e70c001291f9` Dublin Hub Testnet Node
+ - `ea6a715f814bdc37e56f80c34da6ad51` Frankfurt Hub Testnet Node
+
+To browse pages on a node that is not currently known, open the URL dialog in the `Network` section of the program by pressing `Ctrl+U`, paste or enter the address and select `Go` or press enter. Nomadnet will attempt to discover and connect to the requested node.
+
+### Install on Android
+You can install Nomad Network on Android using Termux, but there's a few more commands involved than the above one-liner. The process is documented in the [Android Installation](https://markqvist.github.io/Reticulum/manual/gettingstartedfast.html#reticulum-on-android) section of the Reticulum Manual. Once the Reticulum has been installed according to the linked documentation, Nomad Network can be installed as usual with pip.
+
+For a native Android application with a graphical user interface, have a look at [Sideband](https://github.com/markqvist/Sideband).
+
+### Docker Images
+
+Nomad Network is automatically published as a docker image on Github Packages. Image tags are one of either `master` (for the very latest commit) or the version number (eg `0.2.0`) for a specific release.
+
+```sh
+$ docker pull ghcr.io/markqvist/nomadnet:master
+
+# Run nomadnet interactively in a container
+$ docker run -it ghcr.io/markqvist/nomadnet:master --textui
+
+# Run nomadnet as a daemon, using config stored on the host machine in specified
+# directories, and connect the containers network to the host network (which will
+# allow the default AutoInterface to automatically peer with other discovered
+# Reticulum instances).
+$ docker run -d \
+  -v /local/path/nomadnetconfigdir/:/root/.nomadnetwork/ \
+  -v /local/path/reticulumconfigdir/:/root/.reticulum/ \
+  --network host
+  ghcr.io/markqvist/nomadnet:master
+
+# You can also keep the network of the container isolated from the host, but you
+# will need to manually configure one or more Reticulum interfaces to reach other
+# nodes in a network, by editing the Reticulum configuration file.
+$ docker run -d \
+  -v /local/path/nomadnetconfigdir/:/root/.nomadnetwork/ \
+  -v /local/path/reticulumconfigdir/:/root/.reticulum/ \
+  ghcr.io/markqvist/nomadnet:master
+
+# Send daemon log output to console instead of file
+$ docker run -i ghcr.io/markqvist/nomadnet:master --daemon --console
+```
+
+## Help & Discussion
+
+For help requests, discussion, sharing ideas or anything else related to Nomad Network, please have a look at the [Nomad Network discussions pages](https://github.com/markqvist/Reticulum/discussions/categories/nomad-network).
+
+## Support Nomad Network
+You can help support the continued development of open, free and private communications systems by donating via one of the following channels:
+
+- Monero:
+  ```
+  84FpY1QbxHcgdseePYNmhTHcrgMX4nFfBYtz2GKYToqHVVhJp8Eaw1Z1EedRnKD19b3B8NiLCGVxzKV17UMmmeEsCrPyA5w
+  ```
+- Ethereum
+  ```
+  0x81F7B979fEa6134bA9FD5c701b3501A2e61E897a
+  ```
+- Bitcoin
+  ```
+  3CPmacGm34qYvR6XWLVEJmi2aNe3PZqUuq
+  ```
+- Ko-Fi: https://ko-fi.com/markqvist
+
+## Development Roadmap
+
+- New major features
+    - Network-wide propagated bulletins and discussion threads
+    - Collaborative maps and geospatial information sharing
+    - Facilitation of trade and barter
+- Minor improvements and fixes
+    - Link status (RSSI and SNR) in conversation or conv list
+    - Ctrl-M shorcut for jumping to menu
+    - Share node with other users / send node info to user
+    - Fix internal editor failing on some OSes with no "editor" alias
+    - Possibly add a required-width header
+    - Improve browser handling of remote link close
+    - Better navigation handling when requests fail (also because of closed links)
+    - Retry failed messages mechanism
+    - Re-arrange buttons to be more consistent
+    - Input field for pages
+    - Post mechanism
+    - Term compatibility notice in readme
+    - Selected icon in conversation list
+    - Possibly a Search Local Nodes function
+    - Possibly add via entry in node info box, next to distance
 
 ## Caveat Emptor
-Nomad Network is experimental software, and should be considered as such. While it has been built with cryptography best-practices very foremost in mind, it _has not_ been externally security audited, and there could very well be privacy-breaking bugs. If you want to help out, or help sponsor an audit, please do get in touch.
+Nomad Network is beta software, and should be considered as such. While it has been built with cryptography best-practices very foremost in mind, it _has not_ been externally security audited, and there could very well be privacy-breaking bugs. If you want to help out, or help sponsor an audit, please do get in touch.
+
+## Screenshots
+
+![Screenshot 1](https://github.com/markqvist/NomadNet/raw/master/docs/screenshots/1.png)
+
+![Screenshot 2](https://github.com/markqvist/NomadNet/raw/master/docs/screenshots/2.png)
+
+![Screenshot 3](https://github.com/markqvist/NomadNet/raw/master/docs/screenshots/3.png)
+
+![Screenshot 4](https://github.com/markqvist/NomadNet/raw/master/docs/screenshots/4.png)
+
+![Screenshot 5](https://github.com/markqvist/NomadNet/raw/master/docs/screenshots/5.png)

nomadnet/Conversation.py

@@ -7,26 +7,32 @@ from nomadnet.Directory import DirectoryEntry
 
 class Conversation:
     cached_conversations = {}
+    unread_conversations = {}
     created_callback = None
 
     aspect_filter = "lxmf.delivery"
     @staticmethod
     def received_announce(destination_hash, announced_identity, app_data):
         app = nomadnet.NomadNetworkApp.get_shared_instance()
-        destination_hash_text = RNS.hexrep(destination_hash, delimit=False)
-        # Check if the announced destination is in
-        # our list of conversations
-        if destination_hash_text in [e[0] for e in Conversation.conversation_list(app)]:
-            if app.directory.find(destination_hash):
-                if Conversation.created_callback != None:
-                    Conversation.created_callback()
-            else:
-                if Conversation.created_callback != None:
-                    Conversation.created_callback()
 
-        # Add the announce to the directory announce
-        # stream logger
-        app.directory.lxmf_announce_received(destination_hash, app_data)
+        if not destination_hash in app.ignored_list:
+            destination_hash_text = RNS.hexrep(destination_hash, delimit=False)
+            # Check if the announced destination is in
+            # our list of conversations
+            if destination_hash_text in [e[0] for e in Conversation.conversation_list(app)]:
+                if app.directory.find(destination_hash):
+                    if Conversation.created_callback != None:
+                        Conversation.created_callback()
+                else:
+                    if Conversation.created_callback != None:
+                        Conversation.created_callback()
+
+            # Add the announce to the directory announce
+            # stream logger
+            app.directory.lxmf_announce_received(destination_hash, app_data)
+            
+        else:
+            RNS.log("Ignored announce from "+RNS.prettyhexrep(destination_hash), RNS.LOG_DEBUG)
 
     @staticmethod
     def query_for_peer(source_hash):
@@ -57,6 +63,17 @@ class Conversation:
             conversation = Conversation.cached_conversations[RNS.hexrep(source_hash, delimit=False)]
             conversation.scan_storage()
 
+        if not source_hash in Conversation.unread_conversations:
+            Conversation.unread_conversations[source_hash] = True
+            try:
+                dirname = RNS.hexrep(source_hash, delimit=False)
+                open(app.conversationpath + "/" + dirname + "/unread", 'a').close()
+            except Exception as e:
+                pass
+
+            if Conversation.created_callback != None:
+                Conversation.created_callback()
+
         return ingested_path
 
     @staticmethod
@@ -70,6 +87,13 @@ class Conversation:
                     app_data         = RNS.Identity.recall_app_data(source_hash)
                     display_name     = app.directory.display_name(source_hash)
 
+                    unread = False
+                    if source_hash in Conversation.unread_conversations:
+                        unread = True
+                    elif os.path.isfile(app.conversationpath + "/" + dirname + "/unread"):
+                        Conversation.unread_conversations[source_hash] = True
+                        unread = True
+
                     if display_name == None and app_data:
                         display_name = app_data.decode("utf-8")
 
@@ -80,7 +104,7 @@ class Conversation:
                     
                     trust_level      = app.directory.trust_level(source_hash, display_name)
                     
-                    entry = (source_hash_text, display_name, trust_level, sort_name)
+                    entry = (source_hash_text, display_name, trust_level, sort_name, unread)
                     conversations.append(entry)
 
                 except Exception as e:
@@ -114,9 +138,13 @@ class Conversation:
         self.source_known       = False
         self.source_trusted     = False
         self.source_blocked     = False
+        self.unread             = False
 
         self.__changed_callback = None
 
+        if not RNS.Transport.has_path(bytes.fromhex(source_hash)):
+            RNS.Transport.request_path(bytes.fromhex(source_hash))
+
         self.source_identity = RNS.Identity.recall(bytes.fromhex(self.source_hash))
 
         if self.source_identity:
@@ -143,6 +171,11 @@ class Conversation:
                 message_path = self.messages_path + "/" + filename
                 self.messages.append(ConversationMessage(message_path))
 
+        new_len = len(self.messages)
+
+        if new_len > old_len:
+            self.unread = True
+
         if self.__changed_callback != None:
             self.__changed_callback(self)
 
@@ -156,6 +189,15 @@ class Conversation:
         for purged_message in purged_messages:
             self.messages.remove(purged_message)
 
+    def clear_history(self):
+        purged_messages = []
+        for conversation_message in self.messages:
+            purged_messages.append(conversation_message)
+            conversation_message.purge()
+
+        for purged_message in purged_messages:
+            self.messages.remove(purged_message)
+
     def register_changed_callback(self, callback):
         self.__changed_callback = callback
 
@@ -163,9 +205,18 @@ class Conversation:
         if self.send_destination:
             dest = self.send_destination
             source = self.app.lxmf_destination
-            lxm = LXMF.LXMessage(dest, source, content, title=title, desired_method=LXMF.LXMessage.DIRECT)
+            desired_method = LXMF.LXMessage.DIRECT
+            if self.app.directory.preferred_delivery(dest.hash) == DirectoryEntry.PROPAGATED:
+                if self.app.message_router.get_outbound_propagation_node() != None:
+                    desired_method = LXMF.LXMessage.PROPAGATED
+
+            lxm = LXMF.LXMessage(dest, source, content, title=title, desired_method=desired_method)
             lxm.register_delivery_callback(self.message_notification)
             lxm.register_failed_callback(self.message_notification)
+
+            if self.app.message_router.get_outbound_propagation_node() != None:
+                lxm.try_propagation_on_fail = self.app.try_propagation_on_fail
+
             self.app.message_router.handle_outbound(lxm)
 
             message_path = Conversation.ingest(lxm, self.app, originator=True)
@@ -176,16 +227,55 @@ class Conversation:
             RNS.log("Destination is not known, cannot create LXMF Message.", RNS.LOG_VERBOSE)
             return False
 
+    def paper_output(self, content="", title=""):
+        if self.send_destination:
+            try:
+                dest = self.send_destination
+                source = self.app.lxmf_destination
+                desired_method = LXMF.LXMessage.PAPER
+
+                lxm = LXMF.LXMessage(dest, source, content, title=title, desired_method=desired_method)
+                qr_code = lxm.as_qr()
+                qr_tmp_path = self.app.tmpfilespath+"/"+str(RNS.hexrep(lxm.hash, delimit=False))
+                qr_code.save(qr_tmp_path)
+
+                print_result = self.app.print_file(qr_tmp_path)
+                os.unlink(qr_tmp_path)
+                
+                if print_result:
+                    message_path = Conversation.ingest(lxm, self.app, originator=True)
+                    self.messages.append(ConversationMessage(message_path))
+
+                return print_result
+
+            except Exception as e:
+                RNS.log("An error occurred while generating paper message, the contained exception was: "+str(e), RNS.LOG_ERROR)
+                return False
+
+        else:
+            RNS.log("Destination is not known, cannot create LXMF Message.", RNS.LOG_VERBOSE)
+            return False
+
     def message_notification(self, message):
-        message_path = Conversation.ingest(message, self.app, originator=True)
+        if message.state == LXMF.LXMessage.FAILED and hasattr(message, "try_propagation_on_fail") and message.try_propagation_on_fail:
+            RNS.log("Direct delivery of "+str(message)+" failed. Retrying as propagated message.", RNS.LOG_VERBOSE)
+            message.try_propagation_on_fail = None
+            message.delivery_attempts = 0
+            del message.next_delivery_attempt
+            message.packed = None
+            message.desired_method = LXMF.LXMessage.PROPAGATED
+            self.app.message_router.handle_outbound(message)
+        else:
+            message_path = Conversation.ingest(message, self.app, originator=True)
 
     def __str__(self):
         string = self.source_hash
 
-        if self.source_identity:
-            if self.source_identity.app_data:
-                # TODO: Sanitise for viewing
-                string += " | "+self.source.source_identity.app_data.decode("utf-8")
+        # TODO: Remove this
+        # if self.source_identity:
+        #     if self.source_identity.app_data:
+        #         # TODO: Sanitise for viewing, or just clean this
+        #         string += " | "+self.source_identity.app_data.decode("utf-8")
 
         return string
 
@@ -203,6 +293,7 @@ class ConversationMessage:
             self.lxm = LXMF.LXMessage.unpack_from_file(open(self.file_path, "rb"))
             self.loaded = True
             self.timestamp = self.lxm.timestamp
+            self.sort_timestamp = os.path.getmtime(self.file_path)
 
             if self.lxm.state > LXMF.LXMessage.DRAFT and self.lxm.state < LXMF.LXMessage.SENT:
                 found = False

nomadnet/Directory.py

@@ -5,6 +5,29 @@ import time
 import nomadnet
 import RNS.vendor.umsgpack as msgpack
 
+class PNAnnounceHandler:
+    def __init__(self, owner):
+        self.aspect_filter = "lxmf.propagation"
+        self.owner = owner
+
+    def received_announce(self, destination_hash, announced_identity, app_data):
+        try:
+            if type(app_data) == bytes:
+                data = msgpack.unpackb(app_data)
+
+                if data[0] == True:
+                    RNS.log("Received active propagation node announce from "+RNS.prettyhexrep(destination_hash))
+
+                    associated_peer = RNS.Destination.hash_from_name_and_identity("lxmf.delivery", announced_identity)
+                    associated_node = RNS.Destination.hash_from_name_and_identity("nomadnetwork.node", announced_identity)
+
+                    self.owner.app.directory.pn_announce_received(destination_hash, app_data, associated_peer, associated_node)
+                    self.owner.app.autoselect_propagation_node()
+
+        except Exception as e:
+            RNS.log("Error while evaluating propagation node announce, ignoring announce.", RNS.LOG_DEBUG)
+            RNS.log("The contained exception was: "+str(e), RNS.LOG_DEBUG)
+
 class Directory:
     ANNOUNCE_STREAM_MAXLENGTH = 64
 
@@ -12,11 +35,15 @@ class Directory:
     @staticmethod
     def received_announce(destination_hash, announced_identity, app_data):
         app = nomadnet.NomadNetworkApp.get_shared_instance()
-        destination_hash_text = RNS.hexrep(destination_hash, delimit=False)
 
-        associated_peer = RNS.Destination.hash_from_name_and_identity("lxmf.delivery", announced_identity)
+        if not destination_hash in app.ignored_list:
+            associated_peer = RNS.Destination.hash_from_name_and_identity("lxmf.delivery", announced_identity)
 
-        app.directory.node_announce_received(destination_hash, app_data, associated_peer)
+            app.directory.node_announce_received(destination_hash, app_data, associated_peer)
+            app.autoselect_propagation_node()
+            
+        else:
+            RNS.log("Ignored announce from "+RNS.prettyhexrep(destination_hash), RNS.LOG_DEBUG)
 
 
     def __init__(self, app):
@@ -25,13 +52,16 @@ class Directory:
         self.app = app
         self.load_from_disk()
 
+        self.pn_announce_handler = PNAnnounceHandler(self)
+        RNS.Transport.register_announce_handler(self.pn_announce_handler)
+
 
     def save_to_disk(self):
         try:
             packed_list = []
             for source_hash in self.directory_entries:
                 e = self.directory_entries[source_hash]
-                packed_list.append((e.source_hash, e.display_name, e.trust_level, e.hosts_node))
+                packed_list.append((e.source_hash, e.display_name, e.trust_level, e.hosts_node, e.preferred_delivery, e.identify))
 
             directory = {
                 "entry_list": packed_list,
@@ -41,6 +71,7 @@ class Directory:
             file = open(self.app.directorypath, "wb")
             file.write(msgpack.packb(directory))
             file.close()
+
         except Exception as e:
             RNS.log("Could not write directory to disk. Then contained exception was: "+str(e), RNS.LOG_ERROR)
 
@@ -54,12 +85,23 @@ class Directory:
 
                 entries = {}
                 for e in unpacked_list:
+                        
                     if len(e) > 3:
                         hosts_node = e[3]
                     else:
                         hosts_node = False
 
-                    entries[e[0]] = DirectoryEntry(e[0], e[1], e[2], hosts_node)
+                    if len(e) > 4:
+                        preferred_delivery = e[4]
+                    else:
+                        preferred_delivery = None
+
+                    if len(e) > 5:
+                        identify = e[5]
+                    else:
+                        identify = False
+
+                    entries[e[0]] = DirectoryEntry(e[0], e[1], e[2], hosts_node, preferred_delivery=preferred_delivery, identify_on_connect=identify)
 
                 self.directory_entries = entries
 
@@ -72,21 +114,48 @@ class Directory:
     def lxmf_announce_received(self, source_hash, app_data):
         if app_data != None:
             timestamp = time.time()
-            self.announce_stream.insert(0, (timestamp, source_hash, app_data, False))
+            self.announce_stream.insert(0, (timestamp, source_hash, app_data, "peer"))
             while len(self.announce_stream) > Directory.ANNOUNCE_STREAM_MAXLENGTH:
                 self.announce_stream.pop()
-            self.app.ui.main_display.sub_displays.network_display.directory_change_callback()
+
+            if hasattr(self.app.ui, "main_display"):
+                self.app.ui.main_display.sub_displays.network_display.directory_change_callback()
 
     def node_announce_received(self, source_hash, app_data, associated_peer):
         if app_data != None:
             timestamp = time.time()
-            self.announce_stream.insert(0, (timestamp, source_hash, app_data, True))
+            self.announce_stream.insert(0, (timestamp, source_hash, app_data, "node"))
             while len(self.announce_stream) > Directory.ANNOUNCE_STREAM_MAXLENGTH:
                 self.announce_stream.pop()
 
             if self.trust_level(associated_peer) == DirectoryEntry.TRUSTED:
-                node_entry = DirectoryEntry(source_hash, display_name=app_data.decode("utf-8"), trust_level=DirectoryEntry.TRUSTED, hosts_node=True)
-                self.remember(node_entry)
+                existing_entry = self.find(source_hash)
+                if not existing_entry:
+                    node_entry = DirectoryEntry(source_hash, display_name=app_data.decode("utf-8"), trust_level=DirectoryEntry.TRUSTED, hosts_node=True)
+                    self.remember(node_entry)
+            
+            if hasattr(self.app.ui, "main_display"):
+                self.app.ui.main_display.sub_displays.network_display.directory_change_callback()
+
+    def pn_announce_received(self, source_hash, app_data, associated_peer, associated_node):
+        found_node = None
+        for sh in self.directory_entries:
+            if sh == associated_node:
+                found_node = True
+                break
+
+        for e in self.announce_stream:
+            if e[1] == associated_node:
+                found_node = True
+                break
+
+        if not found_node:
+            timestamp = time.time()
+            self.announce_stream.insert(0, (timestamp, source_hash, app_data, "pn"))
+            while len(self.announce_stream) > Directory.ANNOUNCE_STREAM_MAXLENGTH:
+                self.announce_stream.pop()
+            
+            if hasattr(self.app.ui, "main_display"):
                 self.app.ui.main_display.sub_displays.network_display.directory_change_callback()
 
     def remove_announce_with_timestamp(self, timestamp):
@@ -110,10 +179,21 @@ class Directory:
             return "<"+RNS.hexrep(source_hash, delimit=False)+">"
         else:
             if source_hash in self.directory_entries:
-                return self.directory_entries[source_hash].display_name
+                dn = self.directory_entries[source_hash].display_name
+                if dn == None:
+                    return RNS.prettyhexrep(source_hash)
+                else:
+                    return dn
             else:
                 return "<"+RNS.hexrep(source_hash, delimit=False)+">"
 
+    def alleged_display_str(self, source_hash):
+        if source_hash in self.directory_entries:
+            return self.directory_entries[source_hash].display_name
+        else:
+            return None
+
+
     def trust_level(self, source_hash, announced_display_name=None):
         if source_hash in self.directory_entries:
             if announced_display_name == None:
@@ -129,14 +209,23 @@ class Directory:
         else:
             return DirectoryEntry.UNKNOWN
 
+    def preferred_delivery(self, source_hash):
+        if source_hash in self.directory_entries:
+            return self.directory_entries[source_hash].preferred_delivery
+        else:
+            return DirectoryEntry.DIRECT
+
     def remember(self, entry):
         self.directory_entries[entry.source_hash] = entry
 
         identity = RNS.Identity.recall(entry.source_hash)
-        associated_node = RNS.Destination.hash_from_name_and_identity("nomadnetwork.node", identity)
-        if associated_node in self.directory_entries:
-            node_entry = self.directory_entries[associated_node]
-            node_entry.trust_level = entry.trust_level
+        if identity != None:
+            associated_node = RNS.Destination.hash_from_name_and_identity("nomadnetwork.node", identity)
+            if associated_node in self.directory_entries:
+                node_entry = self.directory_entries[associated_node]
+                node_entry.trust_level = entry.trust_level
+
+        self.save_to_disk()
 
     def forget(self, source_hash):
         if source_hash in self.directory_entries:
@@ -160,6 +249,18 @@ class Directory:
         except Exception as e:
             return False
 
+    def should_identify_on_connect(self, source_hash):
+        if source_hash in self.directory_entries:
+            entry = self.directory_entries[source_hash]
+            return entry.identify
+        else:
+            return False
+
+    def set_identify_on_connect(self, source_hash, state):
+        if source_hash in self.directory_entries:
+            entry = self.directory_entries[source_hash]
+            entry.identify = state
+    
     def known_nodes(self):
         node_list = []
         for eh in self.directory_entries:
@@ -188,14 +289,21 @@ class DirectoryEntry:
     UNKNOWN   = 0x02
     TRUSTED   = 0xFF
 
-    def __init__(self, source_hash, display_name=None, trust_level=UNKNOWN, hosts_node=False):
+    DIRECT     = 0x01
+    PROPAGATED = 0x02
+
+    def __init__(self, source_hash, display_name=None, trust_level=UNKNOWN, hosts_node=False, preferred_delivery=None, identify_on_connect=False):
         if len(source_hash) == RNS.Identity.TRUNCATED_HASHLENGTH//8:
             self.source_hash  = source_hash
             self.display_name = display_name
-            if display_name  == None:
-                display_name  = source_hash
+
+            if preferred_delivery == None:
+                self.preferred_delivery = DirectoryEntry.DIRECT
+            else:
+                self.preferred_delivery = preferred_delivery
 
             self.trust_level  = trust_level
             self.hosts_node   = hosts_node
+            self.identify     = identify_on_connect
         else:
             raise TypeError("Attempt to add invalid source hash to directory")

nomadnet/Node.py

@@ -2,17 +2,19 @@ import os
 import RNS
 import time
 import threading
+import subprocess
 import RNS.vendor.umsgpack as msgpack
 
 class Node:
     JOB_INTERVAL = 5
+    START_ANNOUNCE_DELAY = 6
 
     def __init__(self, app):
         RNS.log("Nomad Network Node starting...", RNS.LOG_VERBOSE)
         self.app = app
         self.identity = self.app.identity
         self.destination = RNS.Destination(self.identity, RNS.Destination.IN, RNS.Destination.SINGLE, "nomadnetwork", "node")
-        self.last_announce = None
+        self.last_announce = time.time()
         self.announce_interval = self.app.node_announce_interval
         self.job_interval = Node.JOB_INTERVAL
         self.should_run_jobs = True
@@ -22,13 +24,25 @@ class Node:
         self.register_pages()
         self.register_files()
 
+        self.destination.set_link_established_callback(self.peer_connected)
+
         if self.name == None:
             self.name = self.app.peer_settings["display_name"]+"'s Node"
 
         RNS.log("Node \""+self.name+"\" ready for incoming connections on "+RNS.prettyhexrep(self.destination.hash), RNS.LOG_VERBOSE)
 
         if self.app.node_announce_at_start:
-            self.announce()
+            def delayed_announce():
+                time.sleep(Node.START_ANNOUNCE_DELAY)
+                self.announce()
+
+            da_thread = threading.Thread(target=delayed_announce)
+            da_thread.setDaemon(True)
+            da_thread.start()
+
+        job_thread = threading.Thread(target=self.__jobs)
+        job_thread.setDaemon(True)
+        job_thread.start()
 
 
     def register_pages(self):
@@ -44,7 +58,6 @@ class Node:
 
         for page in self.servedpages:
             request_path = "/page"+page.replace(self.app.pagespath, "")
-
             self.destination.register_request_handler(
                 request_path,
                 response_generator = self.serve_page,
@@ -55,12 +68,21 @@ class Node:
         self.servedfiles = []
         self.scan_files(self.app.filespath)
 
+        for file in self.servedfiles:
+            request_path = "/file"+file.replace(self.app.filespath, "")
+            self.destination.register_request_handler(
+                request_path,
+                response_generator = self.serve_file,
+                allow = RNS.Destination.ALLOW_ALL
+            )
+
     def scan_pages(self, base_path):
         files = [file for file in os.listdir(base_path) if os.path.isfile(os.path.join(base_path, file)) and file[:1] != "."]
         directories = [file for file in os.listdir(base_path) if os.path.isdir(os.path.join(base_path, file)) and file[:1] != "."]
 
         for file in files:
-            self.servedpages.append(base_path+"/"+file)
+            if not file.endswith(".allowed"):
+                self.servedpages.append(base_path+"/"+file)
 
         for directory in directories:
             self.scan_pages(base_path+"/"+directory)
@@ -75,21 +97,113 @@ class Node:
         for directory in directories:
             self.scan_files(base_path+"/"+directory)
 
-    def serve_page(self, path, data, request_id, remote_identity, requested_at):
-        RNS.log("Request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_VERBOSE)
-        file_path = path.replace("/page", self.app.pagespath, 1)
+    def serve_page(self, path, data, request_id, link_id, remote_identity, requested_at):
+        RNS.log("Page request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_VERBOSE)
         try:
-            RNS.log("Serving file: "+file_path, RNS.LOG_VERBOSE)
-            fh = open(file_path, "rb")
-            response_data = fh.read()
-            fh.close()
-            return response_data
+            self.app.peer_settings["served_page_requests"] += 1
+            self.app.save_peer_settings()
+            
+        except Exception as e:
+            RNS.log("Could not increase served page request count", RNS.LOG_ERROR)
+
+        file_path = path.replace("/page", self.app.pagespath, 1)
+
+        allowed_path = file_path+".allowed"
+        request_allowed = False
+
+        if os.path.isfile(allowed_path):
+            allowed_list = []
+
+            try:
+                if os.access(allowed_path, os.X_OK):
+                    allowed_result = subprocess.run([allowed_path], stdout=subprocess.PIPE)
+                    allowed_input = allowed_result.stdout
+
+                else:
+                    fh = open(allowed_path, "rb")
+                    allowed_input = fh.read()
+                    fh.close()
+
+                allowed_hash_strs = allowed_input.splitlines()
+
+                for hash_str in allowed_hash_strs:
+                    if len(hash_str) == RNS.Identity.TRUNCATED_HASHLENGTH//8*2:
+                        try:
+                            allowed_hash = bytes.fromhex(hash_str.decode("utf-8"))
+                            allowed_list.append(allowed_hash)
+
+                        except Exception as e:
+                            RNS.log("Could not decode RNS Identity hash from: "+str(hash_str), RNS.LOG_DEBUG)
+                            RNS.log("The contained exception was: "+str(e), RNS.LOG_DEBUG)
+
+            except Exception as e:
+                RNS.log("Error while fetching list of allowed identities for request: "+str(e), RNS.LOG_ERROR)
+
+            if hasattr(remote_identity, "hash") and remote_identity.hash in allowed_list:
+                request_allowed = True
+            else:
+                request_allowed = False
+                RNS.log("Denying request, remote identity was not in list of allowed identities", RNS.LOG_VERBOSE)
+
+        else:
+            request_allowed = True
+
+        try:
+            if request_allowed:
+                RNS.log("Serving page: "+file_path, RNS.LOG_VERBOSE)
+                if os.access(file_path, os.X_OK):
+                    env_map = {}
+                    if "PATH" in os.environ:
+                        env_map["PATH"] = os.environ["PATH"]
+                    if link_id != None:
+                        env_map["link_id"] = RNS.hexrep(link_id, delimit=False)
+                    if remote_identity != None:
+                        env_map["remote_identity"] = RNS.hexrep(remote_identity.hash, delimit=False)
+
+                    if data != None and isinstance(data, dict):
+                        for e in data:
+                            if isinstance(e, str) and (e.startswith("field_") or e.startswith("var_")):
+                                env_map[e] = data[e]
+
+                    generated = subprocess.run([file_path], stdout=subprocess.PIPE, env=env_map)
+                    return generated.stdout
+                else:
+                    fh = open(file_path, "rb")
+                    response_data = fh.read()
+                    fh.close()
+                    return response_data
+            else:
+                RNS.log("Request denied", RNS.LOG_VERBOSE)
+                return DEFAULT_NOTALLOWED.encode("utf-8")
 
         except Exception as e:
             RNS.log("Error occurred while handling request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_ERROR)
             RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
             return None
 
+    # TODO: Improve file handling, this will be slow for large files
+    def serve_file(self, path, data, request_id, remote_identity, requested_at):
+        RNS.log("File request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_VERBOSE)
+        try:
+            self.app.peer_settings["served_file_requests"] += 1
+            self.app.save_peer_settings()
+            
+        except Exception as e:
+            RNS.log("Could not increase served file request count", RNS.LOG_ERROR)
+
+        file_path = path.replace("/file", self.app.filespath, 1)
+        file_name = path.replace("/file/", "", 1)
+        try:
+            RNS.log("Serving file: "+file_path, RNS.LOG_VERBOSE)
+            fh = open(file_path, "rb")
+            file_data = fh.read()
+            fh.close()
+            return [file_name, file_data]
+
+        except Exception as e:
+            RNS.log("Error occurred while handling request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_ERROR)
+            RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+            return None
 
     def serve_default_index(self, path, data, request_id, remote_identity, requested_at):
         RNS.log("Serving default index for request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_VERBOSE)
@@ -98,21 +212,33 @@ class Node:
     def announce(self):
         self.app_data = self.name.encode("utf-8")
         self.last_announce = time.time()
+        self.app.peer_settings["node_last_announce"] = self.last_announce
         self.destination.announce(app_data=self.app_data)
+        self.app.message_router.announce_propagation_node()
 
     def __jobs(self):
         while self.should_run_jobs:
             now = time.time()
             
-            if now > self.last_announce + self.announce_interval:
+            if now > self.last_announce + self.announce_interval*60:
                 self.announce()
 
             time.sleep(self.job_interval)
 
-    def peer_connected(link):
-        RNS.log("Peer connected to "+str(self.destination), RNS.LOG_INFO)
+    def peer_connected(self, link):
+        RNS.log("Peer connected to "+str(self.destination), RNS.LOG_VERBOSE)
+        try:
+            self.app.peer_settings["node_connects"] += 1
+            self.app.save_peer_settings()
+
+        except Exception as e:
+            RNS.log("Could not increase node connection count", RNS.LOG_ERROR)
+
         link.set_link_closed_callback(self.peer_disconnected)
 
+    def peer_disconnected(self, link):
+        RNS.log("Peer disconnected from "+str(self.destination), RNS.LOG_VERBOSE)
+        pass
 
 DEFAULT_INDEX = '''>Default Home Page
 
@@ -120,3 +246,8 @@ This node is serving pages, but the home page file (index.mu) was not found in t
 
 If you are the node operator, you can define your own home page by creating a file named `*index.mu`* in the page storage directory.
 '''
+
+DEFAULT_NOTALLOWED = '''>Request Not Allowed
+
+You are not authorised to carry out the request.
+'''

nomadnet/NomadNetworkApp.py

@@ -1,11 +1,21 @@
 import os
+import io
+import sys
 import time
+import shlex
 import atexit
+import threading
+import traceback
+import subprocess
+import contextlib
 
 import RNS
 import LXMF
 import nomadnet
 
+from nomadnet.Directory import DirectoryEntry
+from datetime import datetime
+
 import RNS.vendor.umsgpack as msgpack
 
 from ._version import __version__
@@ -15,15 +25,53 @@ class NomadNetworkApp:
     time_format      = "%Y-%m-%d %H:%M:%S"
     _shared_instance = None
 
-    configdir = os.path.expanduser("~")+"/.nomadnetwork"
+    userdir = os.path.expanduser("~")
+    if os.path.isdir("/etc/nomadnetwork") and os.path.isfile("/etc/nomadnetwork/config"):
+        configdir = "/etc/nomadnetwork"
+    elif os.path.isdir(userdir+"/.config/nomadnetwork") and os.path.isfile(userdir+"/.config/nomadnetwork/config"):
+        configdir = userdir+"/.config/nomadnetwork"
+    else:
+        configdir = userdir+"/.nomadnetwork"
+
+    START_ANNOUNCE_DELAY = 3
 
     def exit_handler(self):
-        RNS.log("Nomad Network Client exit handler executing...", RNS.LOG_VERBOSE)
+        self.should_run_jobs = False
+
         RNS.log("Saving directory...", RNS.LOG_VERBOSE)
         self.directory.save_to_disk()
+
+        if hasattr(self.ui, "restore_ixon"):
+            if self.ui.restore_ixon:
+                try:
+                    os.system("stty ixon")
+
+                except Exception as e:
+                    RNS.log("Could not restore flow control sequences. The contained exception was: "+str(e), RNS.LOG_WARNING)
+
+        if hasattr(self.ui, "restore_palette"):
+            if self.ui.restore_palette:
+                try:
+                    self.ui.screen.write("\x1b]104\x07")
+
+                except Exception as e:
+                    RNS.log("Could not restore terminal color palette. The contained exception was: "+str(e), RNS.LOG_WARNING)
+
         RNS.log("Nomad Network Client exiting now", RNS.LOG_VERBOSE)
 
-    def __init__(self, configdir = None, rnsconfigdir = None):
+    def exception_handler(self, e_type, e_value, e_traceback):
+        RNS.log("An unhandled exception occurred, the details of which will be dumped below", RNS.LOG_ERROR)
+        RNS.log("Type  : "+str(e_type), RNS.LOG_ERROR)
+        RNS.log("Value : "+str(e_value), RNS.LOG_ERROR)
+        t_string = ""
+        for line in traceback.format_tb(e_traceback):
+            t_string += line
+        RNS.log("Trace : \n"+t_string, RNS.LOG_ERROR)
+
+        if issubclass(e_type, KeyboardInterrupt):
+            sys.__excepthook__(e_type, e_value, e_traceback)
+
+    def __init__(self, configdir = None, rnsconfigdir = None, daemon = False, force_console = False):
         self.version       = __version__
         self.enable_client = False
         self.enable_node   = False
@@ -36,13 +84,21 @@ class NomadNetworkApp:
         else:
             self.configdir = configdir
 
+        if force_console:
+            self.force_console_log = True
+        else:
+            self.force_console_log = False
+
         if NomadNetworkApp._shared_instance == None:
             NomadNetworkApp._shared_instance = self
 
         self.rns = RNS.Reticulum(configdir = rnsconfigdir)
 
         self.configpath        = self.configdir+"/config"
+        self.ignoredpath       = self.configdir+"/ignored"
         self.logfilepath       = self.configdir+"/logfile"
+        self.errorfilepath     = self.configdir+"/errors"
+        self.pnannouncedpath   = self.configdir+"/pnannounced"
         self.storagepath       = self.configdir+"/storage"
         self.identitypath      = self.configdir+"/storage/identity"
         self.cachepath         = self.configdir+"/storage/cache"
@@ -50,9 +106,26 @@ class NomadNetworkApp:
         self.conversationpath  = self.configdir+"/storage/conversations"
         self.directorypath     = self.configdir+"/storage/directory"
         self.peersettingspath  = self.configdir+"/storage/peersettings"
+        self.tmpfilespath      = self.configdir+"/storage/tmp"
 
         self.pagespath         = self.configdir+"/storage/pages"
         self.filespath         = self.configdir+"/storage/files"
+        self.cachepath         = self.configdir+"/storage/cache"
+        self.examplespath      = self.configdir+"/examples"
+
+        self.downloads_path    = os.path.expanduser("~/Downloads")
+
+        self.firstrun          = False
+        self.should_run_jobs   = True
+        self.job_interval      = 5
+        self.defer_jobs        = 90
+
+        self.peer_announce_at_start  = True
+        self.try_propagation_on_fail = True
+
+        self.periodic_lxmf_sync = True
+        self.lxmf_sync_interval = 360*60
+        self.lxmf_sync_limit    = 8
 
         if not os.path.isdir(self.storagepath):
             os.makedirs(self.storagepath)
@@ -72,6 +145,14 @@ class NomadNetworkApp:
         if not os.path.isdir(self.filespath):
             os.makedirs(self.filespath)
 
+        if not os.path.isdir(self.cachepath):
+            os.makedirs(self.cachepath)
+
+        if not os.path.isdir(self.tmpfilespath):
+            os.makedirs(self.tmpfilespath)
+        else:
+            self.clear_tmp_dir()
+
         if os.path.isfile(self.configpath):
             try:
                 self.config = ConfigObj(self.configpath)
@@ -87,9 +168,19 @@ class NomadNetworkApp:
                 RNS.log("Check your configuration file for errors!", RNS.LOG_ERROR)
                 nomadnet.panic()
         else:
+            if not os.path.isdir(self.examplespath):
+                try:
+                    import shutil
+                    examplespath = os.path.join(os.path.dirname(__file__), "examples")
+                    shutil.copytree(examplespath, self.examplespath, ignore=shutil.ignore_patterns("__pycache__"))
+                
+                except Exception as e:
+                    RNS.log("Could not copy examples into the "+self.examplespath+" directory.", RNS.LOG_ERROR)
+                    RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+            
             RNS.log("Could not load config file, creating default configuration file...")
             self.createDefaultConfig()
-
+            self.firstrun = True
 
         if os.path.isfile(self.identitypath):
             try:
@@ -119,6 +210,25 @@ class NomadNetworkApp:
                 file = open(self.peersettingspath, "rb")
                 self.peer_settings = msgpack.unpackb(file.read())
                 file.close()
+
+                if not "node_last_announce" in self.peer_settings:
+                    self.peer_settings["node_last_announce"] = None
+
+                if not "propagation_node" in self.peer_settings:
+                    self.peer_settings["propagation_node"] = None
+
+                if not "last_lxmf_sync" in self.peer_settings:
+                    self.peer_settings["last_lxmf_sync"] = 0
+
+                if not "node_connects" in self.peer_settings:
+                    self.peer_settings["node_connects"] = 0
+
+                if not "served_page_requests" in self.peer_settings:
+                    self.peer_settings["served_page_requests"] = 0
+
+                if not "served_file_requests" in self.peer_settings:
+                    self.peer_settings["served_file_requests"] = 0
+
             except Exception as e:
                 RNS.log("Could not load local peer settings from "+self.peersettingspath, RNS.LOG_ERROR)
                 RNS.log("The contained exception was: %s" % (str(e)), RNS.LOG_ERROR)
@@ -127,9 +237,15 @@ class NomadNetworkApp:
             try:
                 RNS.log("No peer settings file found, creating new...")
                 self.peer_settings = {
-                    "display_name": "",
+                    "display_name": "Anonymous Peer",
                     "announce_interval": None,
                     "last_announce": None,
+                    "node_last_announce": None,
+                    "propagation_node": None,
+                    "last_lxmf_sync": 0,
+                    "node_connects": 0,
+                    "served_page_requests": 0,
+                    "served_file_requests": 0
                 }
                 self.save_peer_settings()
                 RNS.log("Created new peer settings file")
@@ -138,12 +254,36 @@ class NomadNetworkApp:
                 RNS.log("The contained exception was: %s" % (str(e)), RNS.LOG_ERROR)
                 nomadnet.panic()
 
+        self.ignored_list = []
+        if os.path.isfile(self.ignoredpath):
+            try:
+                fh = open(self.ignoredpath, "rb")
+                ignored_input = fh.read()
+                fh.close()
 
-        atexit.register(self.exit_handler)
+                ignored_hash_strs = ignored_input.splitlines()
 
-        self.message_router = LXMF.LXMRouter()
+                for hash_str in ignored_hash_strs:
+                    if len(hash_str) == RNS.Identity.TRUNCATED_HASHLENGTH//8*2:
+                        try:
+                            ignored_hash = bytes.fromhex(hash_str.decode("utf-8"))
+                            self.ignored_list.append(ignored_hash)
+
+                        except Exception as e:
+                            RNS.log("Could not decode RNS Identity hash from: "+str(hash_str), RNS.LOG_DEBUG)
+                            RNS.log("The contained exception was: "+str(e), RNS.LOG_DEBUG)
+
+            except Exception as e:
+                RNS.log("Error while loading list of ignored destinations: "+str(e), RNS.LOG_ERROR)
+
+        self.directory = nomadnet.Directory(self)
+
+        self.message_router = LXMF.LXMRouter(identity = self.identity, storagepath = self.storagepath, autopeer = True)
         self.message_router.register_delivery_callback(self.lxmf_delivery)
 
+        for destination_hash in self.ignored_list:
+            self.message_router.ignore_destination(destination_hash)
+
         self.lxmf_destination = self.message_router.register_delivery_identity(self.identity, display_name=self.peer_settings["display_name"])
         self.lxmf_destination.set_default_app_data(self.get_display_name_bytes)
 
@@ -156,17 +296,96 @@ class NomadNetworkApp:
 
         RNS.log("LXMF Router ready to receive on: "+RNS.prettyhexrep(self.lxmf_destination.hash))
 
-        self.directory = nomadnet.Directory(self)
-
         if self.enable_node:
+            self.message_router.set_message_storage_limit(megabytes=self.message_storage_limit)
+            for dest_str in self.prioritised_lxmf_destinations:
+                try:
+                    dest_hash = bytes.fromhex(dest_str)
+                    if len(dest_hash) == RNS.Reticulum.TRUNCATED_HASHLENGTH//8:
+                        self.message_router.prioritise(dest_hash)
+
+                except Exception as e:
+                    RNS.log("Cannot prioritise "+str(dest_str)+", it is not a valid destination hash", RNS.LOG_ERROR)
+
+            self.message_router.enable_propagation()
+            try:
+                with open(self.pnannouncedpath, "wb") as pnf:
+                    pnf.write(msgpack.packb(time.time()))
+                    pnf.close()
+            except Exception as e:
+                RNS.log("An error ocurred while writing Propagation Node announce timestamp. The contained exception was: "+str(e), RNS.LOG_ERROR)
+
+            RNS.log("LXMF Propagation Node started on: "+RNS.prettyhexrep(self.message_router.propagation_destination.hash))
             self.node = nomadnet.Node(self)
         else:
             self.node = None
+            if os.path.isfile(self.pnannouncedpath):
+                try:
+                    RNS.log("Sending indication to peered LXMF Propagation Node that this node is no longer participating", RNS.LOG_DEBUG)
+                    self.message_router.disable_propagation()
+                    os.unlink(self.pnannouncedpath)
+                except Exception as e:
+                    RNS.log("An error ocurred while indicating that this LXMF Propagation Node is no longer participating. The contained exception was: "+str(e), RNS.LOG_ERROR)
 
         RNS.Transport.register_announce_handler(nomadnet.Conversation)
         RNS.Transport.register_announce_handler(nomadnet.Directory)
 
-        nomadnet.ui.spawn(self.uimode)
+        self.autoselect_propagation_node()
+
+        if self.peer_announce_at_start:
+            def delayed_announce():
+                time.sleep(NomadNetworkApp.START_ANNOUNCE_DELAY)
+                self.announce_now()
+
+            da_thread = threading.Thread(target=delayed_announce)
+            da_thread.setDaemon(True)
+            da_thread.start()
+
+        atexit.register(self.exit_handler)
+        sys.excepthook = self.exception_handler
+
+        job_thread = threading.Thread(target=self.__jobs)
+        job_thread.setDaemon(True)
+        job_thread.start()
+
+        # Override UI choice from config on --daemon switch
+        if daemon:
+            self.uimode = nomadnet.ui.UI_NONE
+
+        # This stderr redirect is needed to stop urwid
+        # from spewing KeyErrors to the console and thus,
+        # messing up the UI. A pull request to fix the
+        # bug in urwid was submitted, but until it is
+        # merged, this hack will mitigate it.
+        strio = io.StringIO()
+        with contextlib.redirect_stderr(strio):
+            nomadnet.ui.spawn(self.uimode)
+
+        if strio.tell() > 0:
+            try:
+                strio.seek(0)
+                err_file = open(self.errorfilepath, "w")
+                err_file.write(strio.read())
+                err_file.close()
+
+            except Exception as e:
+                RNS.log("Could not write stderr output to error log file at "+str(self.errorfilepath)+".", RNS.LOG_ERROR)
+                RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+
+
+    def __jobs(self):
+        RNS.log("Deferring scheduled jobs for "+str(self.defer_jobs)+" seconds...", RNS.LOG_DEBUG)
+        time.sleep(self.defer_jobs)
+
+        RNS.log("Starting job scheduler now", RNS.LOG_DEBUG)
+        while self.should_run_jobs:
+            now = time.time()
+            
+            if now > self.peer_settings["last_lxmf_sync"] + self.lxmf_sync_interval:
+                RNS.log("Initiating automatic LXMF sync", RNS.LOG_VERBOSE)
+                self.request_lxmf_sync(limit=self.lxmf_sync_limit)
+
+            time.sleep(self.job_interval)
 
     def set_display_name(self, display_name):
         self.peer_settings["display_name"] = display_name
@@ -179,11 +398,112 @@ class NomadNetworkApp:
     def get_display_name_bytes(self):
         return self.peer_settings["display_name"].encode("utf-8")
 
+    def get_sync_status(self):
+        if self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_IDLE:
+            return "Idle"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_PATH_REQUESTED:
+            return "Path requested"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_LINK_ESTABLISHING:
+            return "Establishing link"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_LINK_ESTABLISHED:
+            return "Link established"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_REQUEST_SENT:
+            return "Sync request sent"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_RECEIVING:
+            return "Receiving messages"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_RESPONSE_RECEIVED:
+            return "Messages received"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_COMPLETE:
+            new_msgs = self.message_router.propagation_transfer_last_result
+            if new_msgs == 0:
+                return "Done, no new messages"
+            else:
+                return "Downloaded "+str(new_msgs)+" new messages"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_NO_IDENTITY_RCVD:
+            return "Node did not receive identification"
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_NO_ACCESS:
+            return "Node did not allow request"
+        else:
+            return "Unknown"
+
+    def sync_status_show_percent(self):
+        if self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_IDLE:
+            return False
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_PATH_REQUESTED:
+            return False
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_LINK_ESTABLISHING:
+            return False
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_LINK_ESTABLISHED:
+            return False
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_REQUEST_SENT:
+            return False
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_RECEIVING:
+            return True
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_RESPONSE_RECEIVED:
+            return True
+        elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_COMPLETE:
+            return False
+        else:
+            return False
+
+    def get_sync_progress(self):
+        return self.message_router.propagation_transfer_progress
+
+    def request_lxmf_sync(self, limit = None):
+        if self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_IDLE or self.message_router.propagation_transfer_state >= LXMF.LXMRouter.PR_COMPLETE:
+            self.peer_settings["last_lxmf_sync"] = time.time()
+            self.save_peer_settings()
+            self.message_router.request_messages_from_propagation_node(self.identity, max_messages = limit)
+
+    def cancel_lxmf_sync(self):
+        if self.message_router.propagation_transfer_state != LXMF.LXMRouter.PR_IDLE:
+            self.message_router.cancel_propagation_node_requests()
+
     def announce_now(self):
         self.lxmf_destination.announce()
         self.peer_settings["last_announce"] = time.time()
         self.save_peer_settings()
 
+    def autoselect_propagation_node(self):
+        selected_node = None
+
+        if "propagation_node" in self.peer_settings and self.peer_settings["propagation_node"] != None:
+            selected_node = self.peer_settings["propagation_node"]
+        else:
+            nodes = self.directory.known_nodes()
+            trusted_nodes = []
+
+            best_hops = RNS.Transport.PATHFINDER_M+1
+
+            for node in nodes:
+                if node.trust_level == DirectoryEntry.TRUSTED:
+                    hops = RNS.Transport.hops_to(node.source_hash)
+
+                    if hops < best_hops:
+                        best_hops = hops
+                        selected_node = node.source_hash
+
+        if selected_node == None:
+            RNS.log("Could not autoselect a propagation node! LXMF propagation will not be available until a trusted node announces on the network, or a propagation node is manually selected.", RNS.LOG_WARNING)
+        else:
+            pn_name_str = ""
+            RNS.log("Selecting "+RNS.prettyhexrep(selected_node)+pn_name_str+" as default LXMF propagation node", RNS.LOG_INFO)
+            self.message_router.set_outbound_propagation_node(selected_node)
+
+    def get_user_selected_propagation_node(self):
+        if "propagation_node" in self.peer_settings:
+            return self.peer_settings["propagation_node"]
+        else:
+            return None
+
+    def set_user_selected_propagation_node(self, node_hash):
+        self.peer_settings["propagation_node"] = node_hash
+        self.save_peer_settings()
+        self.autoselect_propagation_node()
+    
+    def get_default_propagation_node(self):
+        return self.message_router.get_outbound_propagation_node()
+
     def save_peer_settings(self):
         file = open(self.peersettingspath, "wb")
         file.write(msgpack.packb(self.peer_settings))
@@ -202,9 +522,115 @@ class NomadNetworkApp:
 
         nomadnet.Conversation.ingest(message, self)
 
+        if self.should_print(message):
+            self.print_message(message)
+
+    def should_print(self, message):
+        if self.print_messages:
+            if self.print_all_messages:
+                return True
+            
+            else:
+                source_hash_text = RNS.hexrep(message.source_hash, delimit=False)
+
+                if self.print_trusted_messages:
+                    trust_level = self.directory.trust_level(message.source_hash)
+                    if trust_level == DirectoryEntry.TRUSTED:
+                        return True
+
+                if type(self.allowed_message_print_destinations) is list:
+                    if source_hash_text in self.allowed_message_print_destinations:
+                        return True
+
+        return False
+
+    def print_file(self, filename):
+        print_command = self.print_command+" "+filename
+
+        try:
+            return_code = subprocess.call(shlex.split(print_command), stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+
+        except Exception as e:
+            RNS.log("An error occurred while executing print command: "+str(print_command), RNS.LOG_ERROR)
+            RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+            return False
+
+        if return_code == 0:
+            RNS.log("Successfully printed "+str(filename)+" using print command: "+print_command, RNS.LOG_DEBUG)
+            return True
+
+        else:
+            RNS.log("Printing "+str(filename)+" failed using print command: "+print_command, RNS.LOG_DEBUG)
+            return False
+
+
+    def print_message(self, message, received = None):
+        try:
+            template = self.printing_template_msg
+
+            if received == None:
+                received = time.time()
+
+            g = self.ui.glyphs
+            
+            m_rtime = datetime.fromtimestamp(message.timestamp)
+            stime = m_rtime.strftime(self.time_format)
+
+            message_time = datetime.fromtimestamp(received)
+            rtime = message_time.strftime(self.time_format)
+
+            display_name = self.directory.simplest_display_str(message.source_hash)
+            title = message.title_as_string()
+            if title == "":
+                title = "None"
+
+            output = template.format(
+                origin=display_name,
+                stime=stime,
+                rtime=rtime,
+                mtitle=title,
+                mbody=message.content_as_string(),
+            )
+
+            filename = "/tmp/"+RNS.hexrep(RNS.Identity.full_hash(output.encode("utf-8")), delimit=False)
+            with open(filename, "wb") as f:
+                f.write(output.encode("utf-8"))
+                f.close()
+
+            self.print_file(filename)
+
+            os.unlink(filename)
+
+        except Exception as e:
+            RNS.log("Error while printing incoming LXMF message. The contained exception was: "+str(e))
+
     def conversations(self):
         return nomadnet.Conversation.conversation_list(self)
 
+    def has_unread_conversations(self):
+        if len(nomadnet.Conversation.unread_conversations) > 0:
+            return True
+        else:
+            return False
+
+    def conversation_is_unread(self, source_hash):
+        if bytes.fromhex(source_hash) in nomadnet.Conversation.unread_conversations:
+            return True
+        else:
+            return False
+
+    def mark_conversation_read(self, source_hash):
+        if bytes.fromhex(source_hash) in nomadnet.Conversation.unread_conversations:
+            nomadnet.Conversation.unread_conversations.pop(bytes.fromhex(source_hash))
+            if os.path.isfile(self.conversationpath + "/" + source_hash + "/unread"):
+                os.unlink(self.conversationpath + "/" + source_hash + "/unread")
+
+    def clear_tmp_dir(self):
+        if os.path.isdir(self.tmpfilespath):
+            for file in os.listdir(self.tmpfilespath):
+                fpath = self.tmpfilespath+"/"+file
+                os.unlink(fpath)
+
     def createDefaultConfig(self):
         self.config = ConfigObj(__default_nomadnet_config__)
         self.config.filename = self.configpath
@@ -226,7 +652,7 @@ class NomadNetworkApp:
                     if RNS.loglevel > 7:
                         RNS.loglevel = 7
                 if option == "destination":
-                    if value.lower() == "file":
+                    if value.lower() == "file" and not self.force_console_log:
                         RNS.logdest = RNS.LOG_FILE
                         if "logfile" in self.config["logging"]:
                             self.logfilepath = self.config["logging"]["logfile"]
@@ -242,6 +668,36 @@ class NomadNetworkApp:
                     value = self.config["client"].as_bool(option)
                     self.enable_client = value
 
+                if option == "downloads_path":
+                    value = self.config["client"]["downloads_path"]
+                    self.downloads_path = os.path.expanduser(value)
+
+                if option == "announce_at_start":
+                    value = self.config["client"].as_bool(option)
+                    self.peer_announce_at_start = value
+
+                if option == "try_propagation_on_send_fail":
+                    value = self.config["client"].as_bool(option)
+                    self.try_propagation_on_fail = value
+
+                if option == "periodic_lxmf_sync":
+                    value = self.config["client"].as_bool(option)
+                    self.periodic_lxmf_sync = value
+
+                if option == "lxmf_sync_interval":
+                    value = self.config["client"].as_int(option)*60
+
+                    if value >= 60:
+                        self.lxmf_sync_interval = value
+
+                if option == "lxmf_sync_limit":
+                    value = self.config["client"].as_int(option)    
+
+                    if value > 0:
+                        self.lxmf_sync_limit = value
+                    else:
+                        self.lxmf_sync_limit = None
+
                 if option == "user_interface":
                     value = value.lower()
                     if value == "none":
@@ -256,8 +712,11 @@ class NomadNetworkApp:
                             else:
                                 self.config["textui"]["intro_time"] = self.config["textui"].as_int("intro_time")
 
+                            if not "intro_text" in self.config["textui"]:
+                                self.config["textui"]["intro_text"] = "Nomad Network"
+
                             if not "editor" in self.config["textui"]:
-                                self.config["textui"]["editor"] = "editor"
+                                self.config["textui"]["editor"] = "nano"
 
                             if not "glyphs" in self.config["textui"]:
                                 self.config["textui"]["glyphs"] = "unicode"
@@ -327,7 +786,8 @@ class NomadNetworkApp:
             if not "announce_at_start" in self.config["node"]:
                 self.node_announce_at_start = False
             else:
-                self.node_announce_at_start = self.config["node"]["announce_at_start"]
+                value = self.config["node"].as_bool("announce_at_start")
+                self.node_announce_at_start = value
 
             if not "announce_interval" in self.config["node"]:
                 self.node_announce_interval = 720
@@ -343,6 +803,68 @@ class NomadNetworkApp:
             if "files_path" in self.config["node"]:
                 self.filespath = self.config["node"]["files_path"]
 
+            if "prioritise_destinations" in self.config["node"]:
+                self.prioritised_lxmf_destinations = self.config["node"].as_list("prioritise_destinations")
+            else:
+                self.prioritised_lxmf_destinations = []
+
+            if not "message_storage_limit" in self.config["node"]:
+                self.message_storage_limit = 2000
+            else:
+                value = self.config["node"].as_float("message_storage_limit")
+                if value < 0.005:
+                    value = 0.005
+                self.message_storage_limit = value
+
+        self.print_command = "lp"
+        self.print_messages = False
+        self.print_all_messages = False
+        self.print_trusted_messages = False
+        if "printing" in self.config:
+            if not "print_messages" in self.config["printing"]:
+                self.print_messages = False
+            else:
+                self.print_messages = self.config["printing"].as_bool("print_messages")
+
+                if "print_command" in self.config["printing"]:
+                    self.print_command = self.config["printing"]["print_command"]
+
+                if self.print_messages:
+                    if not "print_from" in self.config["printing"]:
+                        self.allowed_message_print_destinations = None
+                    else:
+                        if type(self.config["printing"]["print_from"]) == str:
+                            self.allowed_message_print_destinations = []
+                            if self.config["printing"]["print_from"].lower() == "everywhere":
+                                self.print_all_messages = True
+
+                            if self.config["printing"]["print_from"].lower() == "trusted":
+                                
+                                self.print_all_messages = False
+                                self.print_trusted_messages = True
+
+                            if len(self.config["printing"]["print_from"]) == (RNS.Identity.TRUNCATED_HASHLENGTH//8)*2:
+                                self.allowed_message_print_destinations.append(self.config["printing"]["print_from"])
+                        
+                        if type(self.config["printing"]["print_from"]) == list:
+                                self.allowed_message_print_destinations =  self.config["printing"].as_list("print_from")
+                                for allowed_entry in self.allowed_message_print_destinations:
+                                    if allowed_entry.lower() == "trusted":
+                                        self.print_trusted_messages = True
+
+
+                    if not "message_template" in self.config["printing"]:
+                        self.printing_template_msg = __printing_template_msg__
+                    else:
+                        mt_path = os.path.expanduser(self.config["printing"]["message_template"])
+                        if os.path.isfile(mt_path):
+                            template_file = open(mt_path, "rb")
+                            self.printing_template_msg = template_file.read().decode("utf-8")
+                        else:
+                            template_file = open(mt_path, "wb")
+                            template_file.write(__printing_template_msg__.encode("utf-8"))
+                            self.printing_template_msg = __printing_template_msg__
+
               
     @staticmethod
     def get_shared_instance():
@@ -379,25 +901,56 @@ destination = file
 
 enable_client = yes
 user_interface = text
+downloads_path = ~/Downloads
+
+# By default, the peer is announced at startup
+# to let other peers reach it immediately.
+announce_at_start = yes
+
+# By default, the client will try to deliver a
+# message via the LXMF propagation network, if
+# a direct delivery to the recipient is not
+# possible.
+try_propagation_on_send_fail = yes
+
+# Nomadnet will periodically sync messages from
+# LXMF propagation nodes by default, if any are
+# present. You can disable this if you want to
+# only sync when manually initiated.
+periodic_lxmf_sync = yes
+
+# The sync interval in minutes. This value is
+# equal to 6 hours (360 minutes) by default.
+lxmf_sync_interval = 360
+
+# By default, automatic LXMF syncs will only
+# download 8 messages at a time. You can change
+# this number, or set the option to 0 to disable
+# the limit, and download everything every time.
+lxmf_sync_limit = 8
 
 [textui]
 
 # Amount of time to show intro screen
 intro_time = 1
 
+# You can specify the display theme.
+# theme = light
+theme = dark
+
 # Specify the number of colors to use
 # valid colormodes are:
 # monochrome, 16, 88, 256 and 24bit
 #
-# The default is a conservative 16 colors,
-# but 256 colors can probably be used on
-# most terminals. Some terminals support
+# The default is a conservative 256 colors.
+# If your terminal does not support this,
+# you can lower it. Some terminals support
 # 24 bit color.
 
 # colormode = monochrome
-colormode = 16
+# colormode = 16
 # colormode = 88
-# colormode = 256
+colormode = 256
 # colormode = 24bit
 
 # By default, unicode glyphs are used. If
@@ -415,35 +968,104 @@ glyphs = unicode
 # application. On by default.
 mouse_enabled = True
 
-# What editor to use for editing text. By
-# default the operating systems "editor"
-# alias will be used.
-editor = editor
+# What editor to use for editing text.
+editor = nano
 
 # If you don't want the Guide section to
 # show up in the menu, you can disable it.
-
 hide_guide = no
 
 [node]
 
 # Whether to enable node hosting
-
 enable_node = no
 
 # The node name will be visible to other
 # peers on the network, and included in
 # announces.
-
 node_name = None
 
 # Automatic announce interval in minutes.
-# 12 hours by default.
+# 6 hours by default.
+announce_interval = 360
 
-announce_interval = 720
+# Whether to announce when the node starts.
+announce_at_start = Yes
 
-# Whether to announce when the node starts
+# The maximum amount of storage to use for
+# the LXMF Propagation Node message store,
+# specified in megabytes. When this limit
+# is reached, LXMF will periodically remove
+# messages in its message store. By default,
+# LXMF prioritises keeping messages that are
+# new and small. Large and old messages will
+# be removed first. This setting is optional
+# and defaults to 2 gigabytes.
+# message_storage_limit = 2000
 
-announce_at_start = No
+# You can tell the LXMF message router to
+# prioritise storage for one or more
+# destinations. If the message store reaches
+# the specified limit, LXMF will prioritise
+# keeping messages for destinations specified
+# with this option. This setting is optional,
+# and generally you do not need to use it.
+# prioritise_destinations = 41d20c727598a3fbbdf9106133a3a0ed, d924b81822ca24e68e2effea99bcb8cf
+
+[printing]
+
+# You can configure Nomad Network to print
+# various kinds of information and messages.
+
+# Printing messages is disabled by default
+print_messages = No
+
+# You can configure a custom template for
+# message printing. If you uncomment this
+# option, set a path to the template and
+# restart Nomad Network, a default template
+# will be created that you can edit.
+# message_template = ~/.nomadnetwork/print_template_msg.txt
+
+# You can configure Nomad Network to only
+# print messages from trusted destinations.
+# print_from = trusted
+
+# Or specify the source LXMF addresses that
+# will automatically have messages printed
+# on arrival.
+# print_from = 76fe5751a56067d1e84eef3e88eab85b, 0e70b5848eb57c13154154feaeeb89b7
+
+# Or allow printing from anywhere, if you
+# are feeling brave and adventurous.
+# print_from = everywhere
+
+# You can configure the printing command.
+# This will use the default CUPS printer on
+# your system.
+print_command = lp
+
+# You can specify what printer to use
+# print_command = lp -d PRINTER_NAME
+
+# Or specify more advanced options. This
+# example works well for small thermal-
+# roll printers.
+# print_command = lp -d PRINTER_NAME -o cpi=16 -o lpi=8
+
+# This one is more suitable for full-sheet
+# printers.
+# print_command = lp -d PRINTER_NAME -o page-left=36 -o page-top=36 -o page-right=36 -o page-bottom=36
 
 '''.splitlines()
+
+__printing_template_msg__ = """
+---------------------------
+From: {origin}
+Sent: {stime}
+Rcvd: {rtime}
+Title: {mtitle}
+
+{mbody}
+---------------------------
+"""

nomadnet/_version.py

@@ -1 +1 @@
-__version__ = "0.0.7"
+__version__ = "0.3.5"

nomadnet/examples/messageboard/README.md

@@ -0,0 +1,18 @@
+# lxmf_messageboard
+Simple message board that can be hosted on a NomadNet node, messages can be posted by 'conversing' with a unique peer, all messages are then forwarded to the message board.
+
+## How Do I Use It?
+A user can submit messages to the message board by initiating a chat with the message board peer, they are assigned a username (based on the first 5 characters of their address) and their messages are added directly to the message board. The message board can be viewed on a page hosted by a NomadNet node.
+
+An example message board can be found on the reticulum testnet hosted on the SolarExpress Node `<d16df67bff870a8eaa2af6957c5a2d7d>` and the message board peer `<ad713cd3fedf36cc190f0cb89c4be1ff>`
+
+## How Does It Work?
+The message board page itself is hosted on a NomadNet node, you can place the message_board.mu into the pages directory. You can then run the message_board.py script which provides the peer that the users can send messages to. The two parts are joined together using umsgpack and a flat file system similar to NomadNet and Reticulum and runs in the background.
+
+## How Do I Set It Up?
+* Turn on node hosting in NomadNet
+* Put the `message_board.mu` file into `pages` directory in the config file for `NomadNet`. Edit the file to customise from the default page.
+* Run the `message_board.py` script (`python3 message_board.py` either in a `screen` or as a system service), this script uses `NomadNet` and `RNS` libraries and has no additional libraries that need to be installed. Take a note of the message boards address, it is printed on starting the board, you can then place this address in `message_board.mu` file to make it easier for users to interact the board.
+
+## Credits
+* This example application was written and contributed by @chengtripp

nomadnet/examples/messageboard/messageboard.mu

@@ -0,0 +1,41 @@
+#!/bin/python3
+import time
+import os
+import RNS.vendor.umsgpack as msgpack
+
+message_board_peer = 'please_replace'
+userdir = os.path.expanduser("~")
+
+if os.path.isdir("/etc/nomadmb") and os.path.isfile("/etc/nomadmb/config"):
+    configdir = "/etc/nomadmb"
+elif os.path.isdir(userdir+"/.config/nomadmb") and os.path.isfile(userdir+"/.config/nomadmb/config"):
+    configdir = userdir+"/.config/nomadmb"
+else:
+    configdir = userdir+"/.nomadmb"
+
+storagepath  = configdir+"/storage"
+if not os.path.isdir(storagepath):
+    os.makedirs(storagepath)
+
+boardpath = configdir+"/storage/board"
+
+print('`!`F222`Bddd`cNomadNet Message Board')
+
+print('-')
+print('`a`b`f')
+print("")
+print("To add a message to the board just converse with the NomadNet Message Board at `[lxmf@{}]".format(message_board_peer))
+time_string = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time()))
+print("Last Updated: {}".format(time_string))
+print("")
+print('>Messages')
+print("  Date       Time    Username     Message")
+f = open(boardpath, "rb")
+board_contents = msgpack.unpack(f)
+board_contents.reverse()
+
+for content in board_contents:
+    print("`a{}".format(content.rstrip()))
+    print("")
+
+f.close()

nomadnet/examples/messageboard/messageboard.py

@@ -0,0 +1,187 @@
+# Simple message board that can be hosted on a NomadNet node, messages can be posted by 'conversing' with a unique peer, all messages are then forwarded to the message board.
+# https://github.com/chengtripp/lxmf_messageboard
+
+import RNS
+import LXMF
+import os, time
+from queue import Queue
+import RNS.vendor.umsgpack as msgpack
+
+display_name = "NomadNet Message Board"
+max_messages = 20
+
+def setup_lxmf():
+    if os.path.isfile(identitypath):
+        identity = RNS.Identity.from_file(identitypath)
+        RNS.log('Loaded identity from file', RNS.LOG_INFO)
+    else:
+        RNS.log('No Primary Identity file found, creating new...', RNS.LOG_INFO)
+        identity = RNS.Identity()
+        identity.to_file(identitypath)
+
+    return identity
+
+def lxmf_delivery(message):
+    # Do something here with a received message
+    RNS.log("A message was received: "+str(message.content.decode('utf-8')))
+
+    message_content = message.content.decode('utf-8')
+    source_hash_text = RNS.hexrep(message.source_hash, delimit=False)
+
+    #Create username (just first 5 char of your addr)
+    username = source_hash_text[0:5]
+
+    RNS.log('Username: {}'.format(username), RNS.LOG_INFO)
+
+    time_string = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(message.timestamp))
+    new_message = '{} {}: {}\n'.format(time_string, username, message_content)
+
+    # Push message to board
+    # First read message board (if it exists
+    if os.path.isfile(boardpath):
+        f = open(boardpath, "rb")
+        message_board = msgpack.unpack(f)
+        f.close()
+    else:
+        message_board = []
+
+    #Check we aren't doubling up (this can sometimes happen if there is an error initially and it then gets fixed)
+    if new_message not in message_board:
+        # Append our new message to the list
+        message_board.append(new_message)
+
+    # Prune the message board if needed
+    while len(message_board) > max_messages:
+        RNS.log('Pruning Message Board')
+        message_board.pop(0)
+
+    # Now open the board and write the updated list
+    f = open(boardpath, "wb")
+    msgpack.pack(message_board, f)
+    f.close()
+
+    # Send reply
+    message_reply = '{}_{}_Your message has been added to the messageboard'.format(source_hash_text, time.time())
+    q.put(message_reply)
+
+def announce_now(lxmf_destination):
+    lxmf_destination.announce()
+
+def send_message(destination_hash, message_content):
+    try:
+      # Make a binary destination hash from a hexadecimal string
+      destination_hash = bytes.fromhex(destination_hash)
+
+    except Exception as e:
+      RNS.log("Invalid destination hash", RNS.LOG_ERROR)
+      return
+
+    # Check that size is correct
+    if not len(destination_hash) == RNS.Reticulum.TRUNCATED_HASHLENGTH//8:
+      RNS.log("Invalid destination hash length", RNS.LOG_ERROR)
+
+    else:
+      # Length of address was correct, let's try to recall the
+      # corresponding Identity
+      destination_identity = RNS.Identity.recall(destination_hash)
+
+      if destination_identity == None:
+        # No path/identity known, we'll have to abort or request one
+        RNS.log("Could not recall an Identity for the requested address. You have probably never received an announce from it. Try requesting a path from the network first. In fact, let's do this now :)", RNS.LOG_ERROR)
+        RNS.Transport.request_path(destination_hash)
+        RNS.log("OK, a path was requested. If the network knows a path, you will receive an announce with the Identity data shortly.", RNS.LOG_INFO)
+
+      else:
+        # We know the identity for the destination hash, let's
+        # reconstruct a destination object.
+        lxmf_destination = RNS.Destination(destination_identity, RNS.Destination.OUT, RNS.Destination.SINGLE, "lxmf", "delivery")
+
+        # Create a new message object
+        lxm = LXMF.LXMessage(lxmf_destination, local_lxmf_destination, message_content, title="Reply", desired_method=LXMF.LXMessage.DIRECT)
+
+        # You can optionally tell LXMF to try to send the message
+        # as a propagated message if a direct link fails
+        lxm.try_propagation_on_fail = True
+
+        # Send it
+        message_router.handle_outbound(lxm)
+
+def announce_check():
+    if os.path.isfile(announcepath):
+        f = open(announcepath, "r")
+        announce = int(f.readline())
+        f.close()
+    else:
+        RNS.log('failed to open announcepath', RNS.LOG_DEBUG)
+        announce = 1
+
+    if announce > int(time.time()):
+        RNS.log('Recent announcement', RNS.LOG_DEBUG)
+    else:
+        f = open(announcepath, "w")
+        next_announce = int(time.time()) + 1800
+        f.write(str(next_announce))
+        f.close()
+        announce_now(local_lxmf_destination)
+        RNS.log('Announcement sent, expr set 1800 seconds', RNS.LOG_INFO)
+
+#Setup Paths and Config Files
+userdir = os.path.expanduser("~")
+
+if os.path.isdir("/etc/nomadmb") and os.path.isfile("/etc/nomadmb/config"):
+    configdir = "/etc/nomadmb"
+elif os.path.isdir(userdir+"/.config/nomadmb") and os.path.isfile(userdir+"/.config/nomadmb/config"):
+    configdir = userdir+"/.config/nomadmb"
+else:
+    configdir = userdir+"/.nomadmb"
+
+storagepath  = configdir+"/storage"
+if not os.path.isdir(storagepath):
+    os.makedirs(storagepath)
+
+identitypath = configdir+"/storage/identity"
+announcepath = configdir+"/storage/announce"
+boardpath = configdir+"/storage/board"
+
+# Message Queue
+q = Queue(maxsize = 5)
+
+# Start Reticulum and print out all the debug messages
+reticulum = RNS.Reticulum(loglevel=RNS.LOG_VERBOSE)
+
+# Create a Identity.
+current_identity = setup_lxmf()
+
+# Init the LXMF router
+message_router = LXMF.LXMRouter(identity = current_identity, storagepath = configdir)
+
+# Register a delivery destination (for yourself)
+# In this example we use the same Identity as we used
+# to instantiate the LXMF router. It could be a different one,
+# but it can also just be the same, depending on what you want.
+local_lxmf_destination = message_router.register_delivery_identity(current_identity, display_name=display_name)
+
+# Set a callback for when a message is received
+message_router.register_delivery_callback(lxmf_delivery)
+
+# Announce node properties
+
+RNS.log('LXMF Router ready to receive on: {}'.format(RNS.prettyhexrep(local_lxmf_destination.hash)), RNS.LOG_INFO)
+announce_check()
+
+while True:
+
+    # Work through internal message queue
+    for i in list(q.queue):
+        message_id = q.get()
+        split_message = message_id.split('_')
+        destination_hash = split_message[0]
+        message = split_message[2]
+        RNS.log('{} {}'.format(destination_hash, message), RNS.LOG_INFO)
+        send_message(destination_hash, message)
+
+    # Check whether we need to make another announcement
+    announce_check()
+
+    #Sleep
+    time.sleep(10)

nomadnet/examples/various/input_fields.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+import os
+env_string = ""
+for e in os.environ:
+  env_string += "{}={}\n".format(e, os.environ[e])
+
+template = """>Fields and Submitting Data
+
+Nomad Network let's you use simple input fields for submitting data to node-side applications. Submitted data, along with other session variables will be available to the node-side script / program as environment variables. This page contains a few examples.
+
+>> Read Environment Variables
+
+{@ENV}
+>>Examples of Fields and Submissions
+
+The following section contains a simple set of fields, and a few different links that submit the field data in different ways.
+
+-=
+
+An input field    : `B444`<username`Entered data>`b
+
+An masked field   : `B444`<!|password`Value of Field>`b
+
+An small field    : `B444`<8|small`test>`b, and some more text.
+
+Two fields        : `B444`<8|one`One>`b `B444`<8|two`Two>`b
+
+The data can be `!`[submitted`:/page/input_fields.mu`username|two]`!.
+
+You can `!`[submit`:/page/input_fields.mu`one|password|small]`! other fields, or just `!`[a single one`:/page/input_fields.mu`username]`!
+
+Or simply `!`[submit them all`:/page/input_fields.mu`*]`!.
+
+Submission links can also `!`[include pre-configured variables`:/page/input_fields.mu`username|two|entitiy_id=4611|action=view]`!.
+
+Or take all fields and `!`[pre-configured variables`:/page/input_fields.mu`*|entitiy_id=4611|action=view]`!.
+
+Or only `!`[pre-configured variables`:/page/input_fields.mu`entitiy_id=4688|task=something]`!
+
+-=
+
+"""
+print(template.replace("{@ENV}", env_string))

nomadnet/nomadnet.py

@@ -2,18 +2,27 @@
 
 from ._version import __version__
 
+import io
 import argparse
 import nomadnet
 
 
-def program_setup(configdir, rnsconfigdir):
-    app = nomadnet.NomadNetworkApp(configdir = configdir, rnsconfigdir = rnsconfigdir)
+def program_setup(configdir, rnsconfigdir, daemon, console):
+    app = nomadnet.NomadNetworkApp(
+        configdir = configdir,
+        rnsconfigdir = rnsconfigdir,
+        daemon = daemon,
+        force_console = console,
+    )
 
 def main():
     try:
         parser = argparse.ArgumentParser(description="Nomad Network Client")
         parser.add_argument("--config", action="store", default=None, help="path to alternative Nomad Network config directory", type=str)
         parser.add_argument("--rnsconfig", action="store", default=None, help="path to alternative Reticulum config directory", type=str)
+        parser.add_argument("-t", "--textui", action="store_true", default=False, help="run Nomad Network in text-UI mode")
+        parser.add_argument("-d", "--daemon", action="store_true", default=False, help="run Nomad Network in daemon mode")
+        parser.add_argument("-c", "--console", action="store_true", default=False, help="in daemon mode, log to console instead of file")
         parser.add_argument("--version", action="version", version="Nomad Network Client {version}".format(version=__version__))
         
         args = parser.parse_args()
@@ -28,7 +37,18 @@ def main():
         else:
             rnsconfigarg = None
 
-        program_setup(configarg, rnsconfigarg)
+        console = False
+        if args.daemon:
+            daemon = True
+            if args.console:
+                console = True
+        else:
+            daemon = False
+
+        if args.textui:
+            daemon = False
+
+        program_setup(configarg, rnsconfigarg, daemon, console)
 
     except KeyboardInterrupt:
         print("")

nomadnet/ui/MenuUI.py

@@ -4,5 +4,5 @@ import nomadnet
 class MenuUI:
 
     def __init__(self):
-        RNS.log("Menu UI not implemented", RNS.LOG_ERROR)
+        RNS.log("Menu UI not implemented", RNS.LOG_ERROR, _override_destination=True)
         nomadnet.panic()

nomadnet/ui/NoneUI.py

@@ -0,0 +1,19 @@
+import RNS
+import nomadnet
+import time
+
+from nomadnet import NomadNetworkApp
+
+class NoneUI:
+
+    def __init__(self):
+        self.app = NomadNetworkApp.get_shared_instance()
+        self.app.ui = self
+
+        if not self.app.force_console_log:
+            RNS.log("Nomad Network started in daemon mode, all further messages are logged to "+str(self.app.logfilepath), RNS.LOG_INFO, _override_destination=True)
+        else:
+            RNS.log("Nomad Network daemon started", RNS.LOG_INFO)
+
+        while True:
+            time.sleep(1)

nomadnet/ui/TextUI.py

@@ -1,6 +1,8 @@
 import RNS
-import importlib
+import urwid
 import time
+import os
+import platform
 
 import nomadnet
 from nomadnet.ui.textui import *
@@ -18,22 +20,23 @@ THEMES = {
     THEME_DARK: {
         "urwid_theme": [
             # Style name                    # 16-color style                        # Monochrome style          # 88, 256 and true-color style
-            ('heading',                     'light gray,underline', 'default',      'underline',                'g93,underline', 'default'),
-            ('menubar',                     'black', 'light gray',                  'standout',                 '#111', '#bbb'),
-            ('scrollbar',                   'light gray', 'default',                'standout',                 '#444', 'default'),
-            ('shortcutbar',                 'black', 'light gray',                  'standout',                 '#111', '#bbb'),
-            ('body_text',                   'white', 'default',                     'default',                  '#ddd', 'default'),
-            ('error_text',                  'dark red', 'default',                  'default',                  'dark red', 'default'),
-            ('warning_text',                'yellow', 'default',                    'default',                  '#ba4', 'default'),
-            ('inactive_text',               'dark gray', 'default',                 'default',                  'dark gray', 'default'),
-            ('buttons',                     'light green,bold', 'default',          'default',                  '#00a533', 'default'),
-            ('msg_editor',                  'black', 'light cyan',                  'standout',                 '#111', '#0bb'),
-            ("msg_header_ok",               'black', 'light green',                 'standout',                 '#111', '#6b2'),
-            ("msg_header_caution",          'black', 'yellow',                      'standout',                 '#111', '#fd3'),
-            ("msg_header_sent",             'black', 'light gray',                  'standout',                 '#111', '#ddd'),
-            ("msg_header_delivered",        'black', 'light blue',                  'standout',                 '#111', '#28b'),
-            ("msg_header_failed",           'black', 'dark gray',                   'standout',                 '#000', "#777"),
-            ("msg_warning_untrusted",       'black', 'dark red',                    'standout',                 '#111', 'dark red'),
+            ("heading",                     "light gray,underline", "default",      "underline",                "g93,underline", "default"),
+            ("menubar",                     "black", "light gray",                  "standout",                 "#111", "#bbb"),
+            ("scrollbar",                   "light gray", "default",                "default",                  "#444", "default"),
+            ("shortcutbar",                 "black", "light gray",                  "standout",                 "#111", "#bbb"),
+            ("body_text",                   "light gray", "default",                "default",                  "#ddd", "default"),
+            ("error_text",                  "dark red", "default",                  "default",                  "dark red", "default"),
+            ("warning_text",                "yellow", "default",                    "default",                  "#ba4", "default"),
+            ("inactive_text",               "dark gray", "default",                 "default",                  "dark gray", "default"),
+            ("buttons",                     "light green,bold", "default",          "default",                  "#00a533", "default"),
+            ("msg_editor",                  "black", "light cyan",                  "standout",                 "#111", "#0bb"),
+            ("msg_header_ok",               "black", "light green",                 "standout",                 "#111", "#6b2"),
+            ("msg_header_caution",          "black", "yellow",                      "standout",                 "#111", "#fd3"),
+            ("msg_header_sent",             "black", "light gray",                  "standout",                 "#111", "#ddd"),
+            ("msg_header_propagated",       "black", "light blue",                  "standout",                 "#111", "#28b"),
+            ("msg_header_delivered",        "black", "light blue",                  "standout",                 "#111", "#28b"),
+            ("msg_header_failed",           "black", "dark gray",                   "standout",                 "#000", "#777"),
+            ("msg_warning_untrusted",       "black", "dark red",                    "standout",                 "#111", "dark red"),
             ("list_focus",                  "black", "light gray",                  "standout",                 "#111", "#aaa"),
             ("list_off_focus",              "black", "dark gray",                   "standout",                 "#111", "#777"),
             ("list_trusted",                "dark green", "default",                "default",                  "#6b2", "default"),
@@ -42,11 +45,44 @@ THEMES = {
             ("list_normal",                 "dark gray", "default",                 "default",                  "#bbb", "default"),
             ("list_untrusted",              "dark red", "default",                  "default",                  "#a22", "default"),
             ("list_focus_untrusted",        "black", "light gray",                  "standout",                 "#810", "#aaa"),
-            ("topic_list_normal",           "white", "default",                     "default",                  "#ddd", "default"),
-            ('browser_controls',            "light gray", 'default',                     'default',                  '#bbb', 'default'),
+            ("topic_list_normal",           "light gray", "default",                "default",                  "#ddd", "default"),
+            ("browser_controls",            "light gray", "default",                "default",                  "#bbb", "default"),
             ("progress_full",               "black", "light gray",                  "standout",                 "#111", "#bbb"),
             ("progress_empty",              "light gray", "default",                "default",                  "#ddd", "default"),
         ],        
+    },
+    THEME_LIGHT: {
+        "urwid_theme": [
+            # Style name                    # 16-color style                        # Monochrome style          # 88, 256 and true-color style
+            ("heading",                     "dark gray,underline", "default",      "underline",                "g93,underline", "default"),
+            ("menubar",                     "black", "dark gray",                  "standout",                 "#111", "#bbb"),
+            ("scrollbar",                   "dark gray", "default",                "default",                  "#444", "default"),
+            ("shortcutbar",                 "black", "dark gray",                  "standout",                 "#111", "#bbb"),
+            ("body_text",                   "dark gray", "default",                "default",                  "#222", "default"),
+            ("error_text",                  "dark red", "default",                 "default",                  "dark red", "default"),
+            ("warning_text",                "yellow", "default",                   "default",                  "#ba4", "default"),
+            ("inactive_text",               "light gray", "default",               "default",                  "dark gray", "default"),
+            ("buttons",                     "light green,bold", "default",         "default",                  "#00a533", "default"),
+            ("msg_editor",                  "black", "dark cyan",                  "standout",                 "#111", "#0bb"),
+            ("msg_header_ok",               "black", "dark green",                 "standout",                 "#111", "#6b2"),
+            ("msg_header_caution",          "black", "yellow",                     "standout",                 "#111", "#fd3"),
+            ("msg_header_sent",             "black", "dark gray",                  "standout",                 "#111", "#ddd"),
+            ("msg_header_delivered",        "black", "light blue",                 "standout",                 "#111", "#28b"),
+            ("msg_header_failed",           "black", "dark gray",                  "standout",                 "#000", "#777"),
+            ("msg_warning_untrusted",       "black", "dark red",                   "standout",                 "#111", "dark red"),
+            ("list_focus",                  "black", "dark gray",                  "standout",                 "#111", "#aaa"),
+            ("list_off_focus",              "black", "dark gray",                  "standout",                 "#111", "#777"),
+            ("list_trusted",                "dark green", "default",               "default",                  "#4a0", "default"),
+            ("list_focus_trusted",          "black", "dark gray",                  "standout",                 "#150", "#aaa"),
+            ("list_unknown",                "dark gray", "default",                "default",                  "#444", "default"),
+            ("list_normal",                 "dark gray", "default",                "default",                  "#444", "default"),
+            ("list_untrusted",              "dark red", "default",                 "default",                  "#a22", "default"),
+            ("list_focus_untrusted",        "black", "dark gray",                  "standout",                 "#810", "#aaa"),
+            ("topic_list_normal",           "dark gray", "default",                "default",                  "#222", "default"),
+            ("browser_controls",            "dark gray", "default",                "default",                  "#444", "default"),
+            ("progress_full",               "black", "dark gray",                  "standout",                 "#111", "#bbb"),
+            ("progress_empty",              "dark gray", "default",                "default",                  "#ddd", "default"),
+        ],        
     }
 }
 
@@ -56,41 +92,62 @@ GLYPHSETS = {
     "nerdfont": 3
 }
 
+if platform.system() == "Darwin":
+    urm_char = " \uf0e0 "
+    ur_char = "\uf0e0 "
+else:
+    urm_char = " \uf003 "
+    ur_char = "\uf003 "
+
 GLYPHS = {
     # Glyph name        # Plain      # Unicode      # Nerd Font
     ("check",           "=",         "\u2713",      "\u2713"),
     ("cross",           "X",         "\u2715",      "\u2715"),
     ("unknown",         "?",         "?",           "?"),
-    ("lock",            "E",         "\U0001f512",  "\uf023"),
-    ("unlock",          "!",         "\U0001f513",  "\uf09c"),
+    ("encrypted",       "",          "\u26BF",      "\uf023"),
+    ("plaintext",       "!",         "!",           "\uf06e "),
     ("arrow_r",         "->",        "\u2192",      "\u2192"),
     ("arrow_l",         "<-",        "\u2190",      "\u2190"),
     ("arrow_u",         "/\\",       "\u2191",      "\u2191"),
     ("arrow_d",         "\\/",       "\u2193",      "\u2193"),
     ("warning",         "!",         "\u26a0",      "\uf12a"),
     ("info",            "i",         "\u2139",      "\ufb4d"),
+    ("unread",          "[!]",       "\u2709",      ur_char),
     ("divider1",        "-",         "\u2504",      "\u2504"),
-    ("peer",            "P",         "\U0001F464",  "\uf415"),
-    ("node",            "N",         "\U0001F5A5",  "\uf502"),
-    ("page",            "",          "\U0001F5B9",  "\uf719 "),
-    ("speed",           "",          "\U0001F5B9",  "\uf9c4"),
-    ("decoration_menu", "",          "",            " \uf93a"),
+    ("peer",            "[P]",       "\u24c5 ",     "\uf415"),
+    ("node",            "[N]",       "\u24c3 ",     "\uf502"),
+    ("page",            "",          "\u25a4 ",     "\uf719 "),
+    ("speed",           "",          "\u25F7 ",     "\uf9c4"),
+    ("decoration_menu", " +",        " +",          " \uf93a"),
+    ("unread_menu",     " !",        " \u2709",     urm_char),
+    ("globe",           "",          "",            "\uf484"),
+    ("sent",            "/\\",       "\u2191",      "\ufbf4"),
+    ("papermsg",        "P",         "\u25a4",      "\uf719"),
+    ("qrcode",          "QR",        "\u25a4",      "\uf029"),
 }
 
 class TextUI:
 
     def __init__(self):
+        self.restore_ixon = False
+
+        try:
+            rval = os.system("stty -a | grep \"\\-ixon\"")
+            if rval == 0:
+                pass
+
+            else:
+                os.system("stty -ixon")
+                self.restore_ixon = True
+
+        except Exception as e:
+            RNS.log("Could not configure terminal flow control sequences, some keybindings may not work.", RNS.LOG_WARNING)
+            RNS.log("The contained exception was: "+str(e))
+
         self.app = NomadNetworkApp.get_shared_instance()
         self.app.ui = self
         self.loop = None
 
-        if importlib.util.find_spec("urwid") != None:
-            import urwid
-        else:
-            RNS.log("The text-mode user interface requires Urwid to be installed on your system.", RNS.LOG_ERROR)
-            RNS.log("You can install it with the command: pip3 install urwid", RNS.LOG_ERROR)
-            nomadnet.panic()
-
         urwid.set_encoding("UTF-8")
 
         intro_timeout  = self.app.config["textui"]["intro_time"]
@@ -124,24 +181,44 @@ class TextUI:
         else:
             initial_widget = self.main_display.widget
 
-        self.loop = urwid.MainLoop(initial_widget, screen=self.screen, handle_mouse=mouse_enabled)
+        self.loop = urwid.MainLoop(initial_widget, unhandled_input=self.unhandled_input, screen=self.screen, handle_mouse=mouse_enabled)
 
         if intro_timeout > 0:
             self.loop.set_alarm_in(intro_timeout, self.display_main)
 
-        # TODO: Probably remove this at some point when better terminal
-        # color capability detection has been implemented
-        if colormode > 16:
-            RNS.log("Starting Text UI in "+str(colormode)+" color mode. If no UI appears, try adjusting your color settings in "+str(self.app.configdir)+"/config", RNS.LOG_INFO, _override_destination = True)
+        if "KONSOLE_VERSION" in os.environ:
+            if colormode > 16:
+                RNS.log("", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("You are using the terminal emulator Konsole.", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("If you are not seeing the user interface, it is due to a bug in Konsole/urwid.", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("", RNS.LOG_WARNING, _override_destination = True)
+
+                RNS.log("To circumvent this, use another terminal emulator, or launch nomadnet within a", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("screen session, using a command like the following:", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("screen nomadnet", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("", RNS.LOG_WARNING, _override_destination = True)
+                RNS.log("Press ctrl-c to exit now and try again.", RNS.LOG_WARNING, _override_destination = True)
 
         self.set_colormode(colormode)
 
+        self.main_display.start()
         self.loop.run()
 
     def set_colormode(self, colormode):
         self.colormode = colormode
         self.screen.set_terminal_properties(colormode)
-        self.screen.reset_default_terminal_palette()
+        
+        if self.colormode < 256:
+            self.screen.reset_default_terminal_palette()
+            self.restore_palette = True
+
+    def unhandled_input(self, key):
+        if key == "ctrl q":
+            raise urwid.ExitMainLoop
+        elif key == "ctrl e":
+            pass
 
     def display_main(self, loop, user_data):
         self.loop.widget = self.main_display.widget

nomadnet/ui/__init__.py

@@ -12,11 +12,15 @@ UI_MENU       = 0x01
 UI_TEXT       = 0x02
 UI_GRAPHICAL  = 0x03
 UI_WEB        = 0x04
-UI_MODES = [UI_MENU, UI_TEXT, UI_GRAPHICAL, UI_WEB]
+UI_MODES = [UI_NONE, UI_MENU, UI_TEXT, UI_GRAPHICAL, UI_WEB]
 
 def spawn(uimode):
     if uimode in UI_MODES:
-        RNS.log("Starting user interface...", RNS.LOG_INFO)
+        if uimode == UI_NONE:
+            RNS.log("Starting Nomad Network daemon...", RNS.LOG_INFO)
+        else:
+            RNS.log("Starting user interface...", RNS.LOG_INFO)
+
         if uimode == UI_MENU:
             from .MenuUI import MenuUI
             return MenuUI()
@@ -29,8 +33,11 @@ def spawn(uimode):
         elif uimode == UI_WEB:
             from .WebUI import WebUI
             return WebUI()
+        elif uimode == UI_NONE:
+            from .NoneUI import NoneUI
+            return NoneUI()
         else:
             return None
     else:
-        RNS.log("Invalid UI mode", RNS.LOG_ERROR)
+        RNS.log("Invalid UI mode", RNS.LOG_ERROR, _override_destination=True)
         nomadnet.panic()

nomadnet/ui/textui/Browser.py

@@ -1,44 +1,77 @@
 import RNS
+import os
 import time
 import urwid
 import nomadnet
+import subprocess
 import threading
 from .MicronParser import markup_to_attrmaps
+from nomadnet.Directory import DirectoryEntry
 from nomadnet.vendor.Scrollable import *
 
-# TODO: REMOVE
-import os
-
 class BrowserFrame(urwid.Frame):
     def keypress(self, size, key):
         if key == "ctrl w":
             self.delegate.disconnect()
+        elif key == "ctrl d":
+            self.delegate.back()
+        elif key == "ctrl f":
+            self.delegate.forward()
+        elif key == "ctrl r":
+            self.delegate.reload()
+        elif key == "ctrl u":
+            self.delegate.url_dialog()
+        elif key == "ctrl s":
+            self.delegate.save_node_dialog()
+        elif key == "ctrl g":
+            nomadnet.NomadNetworkApp.get_shared_instance().ui.main_display.sub_displays.network_display.toggle_fullscreen()
         elif self.get_focus() == "body":
+            if key == "down" or key == "up":
+                try:
+                    if hasattr(self.delegate, "page_pile") and self.delegate.page_pile:
+                        def df(loop, user_data):
+                            st = None
+                            nf = self.delegate.page_pile.get_focus()
+                            if hasattr(nf, "key_timeout"):
+                                st = nf
+                            elif hasattr(nf, "original_widget"):
+                                no = nf.original_widget
+                                if hasattr(no, "original_widget"):
+                                    st = no.original_widget
+                                else:
+                                    if hasattr(no, "key_timeout"):
+                                        st = no
+                        
+                            if st and hasattr(st, "key_timeout") and hasattr(st, "keypress") and callable(st.keypress):
+                                st.keypress(None, None)
+
+                        nomadnet.NomadNetworkApp.get_shared_instance().ui.loop.set_alarm_in(0.25, df)
+                
+                except Exception as e:
+                    RNS.log("Error while setting up cursor timeout. The contained exception was: "+str(e), RNS.LOG_ERROR)
+                                        
             return super(BrowserFrame, self).keypress(size, key)
-            # if key == "up" and self.delegate.messagelist.top_is_visible:
-            #     nomadnet.NomadNetworkApp.get_shared_instance().ui.main_display.frame.set_focus("header")
-            # elif key == "down" and self.delegate.messagelist.bottom_is_visible:
-            #     self.set_focus("footer")
-            # else:
-            #     return super(ConversationFrame, self).keypress(size, key)
+
         else:
             return super(BrowserFrame, self).keypress(size, key)
 
 class Browser:
     DEFAULT_PATH       = "/page/index.mu"
-    DEFAULT_TIMEOUT    = 5
+    DEFAULT_TIMEOUT    = 10
+    DEFAULT_CACHE_TIME = 12*60*60
 
     NO_PATH            = 0x00
     PATH_REQUESTED     = 0x01
     ESTABLISHING_LINK  = 0x02
-    LINK_ESTABLISHED   = 0x03
-    REQUESTING         = 0x04
-    REQUEST_SENT       = 0x05
-    REQUEST_FAILED     = 0x06
-    REQUEST_TIMEOUT    = 0x07
-    RECEIVING_RESPONSE = 0x08
-    DONE               = 0xFF
+    LINK_TIMEOUT       = 0x03
+    LINK_ESTABLISHED   = 0x04
+    REQUESTING         = 0x05
+    REQUEST_SENT       = 0x06
+    REQUEST_FAILED     = 0x07
+    REQUEST_TIMEOUT    = 0x08
+    RECEIVING_RESPONSE = 0x09
     DISCONECTED        = 0xFE
+    DONE               = 0xFF
 
     def __init__(self, app, app_name, aspects, destination_hash = None, path = None, auth_identity = None, delegate = None):
         self.app = app
@@ -48,28 +81,43 @@ class Browser:
         self.aspects = aspects
         self.destination_hash = destination_hash
         self.path = path
+        self.request_data = None
         self.timeout = Browser.DEFAULT_TIMEOUT
         self.last_keypress = None
 
         self.link = None
+        self.loopback = None
         self.status = Browser.DISCONECTED
         self.response_progress = 0
         self.response_size = None
         self.response_transfer_size = None
+        self.saved_file_name = None
         self.page_data = None
         self.displayed_page_data = None
         self.auth_identity = auth_identity
         self.display_widget = None
+        self.link_status_showing = False
+        self.link_target = None
         self.frame = None
         self.attr_maps = []
+        self.page_pile = None
         self.build_display()
 
+        self.history = []
+        self.history_ptr = 0
+        self.history_inc = False
+        self.history_dec = False
+        self.reloading = False
+        self.loaded_from_cache = False
+
         if self.path == None:
             self.path = Browser.DEFAULT_PATH
 
         if self.destination_hash != None:
             self.load_page()
 
+        self.clean_cache()
+
     def current_url(self):
         if self.destination_hash == None:
             return ""
@@ -80,12 +128,143 @@ class Browser:
                 path = self.path
             return RNS.hexrep(self.destination_hash, delimit=False)+":"+path
 
-    def handle_link(self, link_target):
-        RNS.log("Browser handling link to: "+str(link_target), RNS.LOG_DEBUG)
+    def url_hash(self, url):
+        if url == None:
+            return None
+        else:
+            url = url.encode("utf-8")
+            return RNS.hexrep(RNS.Identity.full_hash(url), delimit=False)
+
+
+    def marked_link(self, link_target):
+        if self.status == Browser.DONE:
+            self.link_target = link_target
+            self.app.ui.loop.set_alarm_in(0.1, self.marked_link_job)
+
+    def marked_link_job(self, sender, event):
+        link_target = self.link_target
+
+        if link_target == None:
+            if self.link_status_showing:
+                self.browser_footer = self.make_status_widget()
+                self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
+                self.link_status_showing = False
+        else:
+            self.link_status_showing = True
+            self.browser_footer = urwid.AttrMap(urwid.Pile([urwid.Divider(self.g["divider1"]), urwid.Text("Link to: "+str(link_target))]), "browser_controls")
+            self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
+
+    def expand_shorthands(self, destination_type):
+        if destination_type == "nnn":
+            return "nomadnetwork.node"
+        elif destination_type == "lxmf":
+            return "lxmf.delivery"
+        else:
+            return destination_type
+
+    def handle_link(self, link_target, link_data = None):
+        request_data = None
+        if link_data != None:
+            link_fields = []
+            request_data = {}
+            all_fields = True if "*" in link_data else False
+
+            for e in link_data:
+                if "=" in e:
+                    c = e.split("=")
+                    if len(c) == 2:
+                        request_data["var_"+str(c[0])] = str(c[1])
+                else:
+                    link_fields.append(e)
+
+            def recurse_down(w):
+                target = None
+                if isinstance(w, list):
+                    for t in w:
+                        recurse_down(t)
+                elif isinstance(w, tuple):
+                    for t in w:
+                        recurse_down(t)
+                elif hasattr(w, "contents"):
+                    recurse_down(w.contents)
+                elif hasattr(w, "original_widget"):
+                    recurse_down(w.original_widget)
+                elif hasattr(w, "_original_widget"):
+                    recurse_down(w._original_widget)
+                else:
+                    if hasattr(w, "field_name") and (all_fields or w.field_name in link_fields):
+                        request_data["field_"+w.field_name] = w.get_edit_text()
+                
+            recurse_down(self.attr_maps)
+            RNS.log("Including request data: "+str(request_data), RNS.LOG_DEBUG)
+
+        components = link_target.split("@")
+        destination_type = None
+
+        if len(components) == 2:
+            destination_type = self.expand_shorthands(components[0])
+            link_target = components[1]
+        else:
+            destination_type = "nomadnetwork.node"
+            link_target = components[0]
+
+        if destination_type == "nomadnetwork.node":
+            if self.status >= Browser.DISCONECTED:
+                RNS.log("Browser handling link to: "+str(link_target), RNS.LOG_DEBUG)
+                self.browser_footer = urwid.Text("Opening link to: "+str(link_target))
+                try:
+                    self.retrieve_url(link_target, request_data)
+                except Exception as e:
+                    self.browser_footer = urwid.Text("Could not open link: "+str(e))
+                    self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
+            else:
+                RNS.log("Browser already handling link, cannot handle link to: "+str(link_target), RNS.LOG_DEBUG)
+
+        elif destination_type == "lxmf.delivery":
+            RNS.log("Passing LXMF link to handler", RNS.LOG_DEBUG)
+            self.handle_lxmf_link(link_target)
+
+        else:
+            RNS.log("No known handler for destination type "+str(destination_type), RNS.LOG_DEBUG)
+            self.browser_footer = urwid.Text("Could not open link: "+"No known handler for destination type "+str(destination_type))
+            self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
+
+    def handle_lxmf_link(self, link_target):
         try:
-            self.retrieve_url(link_target)
+            if not type(link_target) is str:
+                raise ValueError("Invalid data type for LXMF link")
+
+            if len(link_target) != (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2:
+                raise ValueError("Invalid length for LXMF link")
+
+            try:
+                bytes.fromhex(link_target)
+
+            except Exception as e:
+                raise ValueError("Could not decode destination hash from LXMF link")
+
+            existing_conversations = nomadnet.Conversation.conversation_list(self.app)
+            
+            source_hash_text = link_target
+            display_name_data = RNS.Identity.recall_app_data(bytes.fromhex(source_hash_text))
+
+            display_name = None
+            if display_name_data != None:
+                display_name = display_name_data.decode("utf-8")
+
+            if not source_hash_text in [c[0] for c in existing_conversations]:
+                entry = DirectoryEntry(bytes.fromhex(source_hash_text), display_name=display_name)
+                self.app.directory.remember(entry)
+
+                new_conversation = nomadnet.Conversation(source_hash_text, nomadnet.NomadNetworkApp.get_shared_instance(), initiator=True)
+                self.app.ui.main_display.sub_displays.conversations_display.update_conversation_list()
+
+            self.app.ui.main_display.sub_displays.conversations_display.display_conversation(None, source_hash_text)
+            self.app.ui.main_display.show_conversations(None)
+
         except Exception as e:
-            self.browser_footer = urwid.Text("Could not open link: "+str(e))
+            RNS.log("Error while starting conversation from link. The contained exception was: "+str(e), RNS.LOG_ERROR)
+            self.browser_footer = urwid.Text("Could not open LXMF link: "+str(e))
             self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
 
 
@@ -97,11 +276,13 @@ class Browser:
         self.browser_header = urwid.Text("")
         self.browser_footer = urwid.Text("")
 
+        self.page_pile = None
         self.browser_body = urwid.Filler(urwid.Text("Disconnected\n"+self.g["arrow_l"]+"  "+self.g["arrow_r"], align="center"), "middle")
 
         self.frame = BrowserFrame(self.browser_body, header=self.browser_header, footer=self.browser_footer)
         self.frame.delegate = self
-        self.display_widget = urwid.AttrMap(urwid.LineBox(self.frame, title="Remote Node"), "inactive_text")
+        self.linebox = urwid.LineBox(self.frame, title="Remote Node")
+        self.display_widget = urwid.AttrMap(self.linebox, "inactive_text")
 
     def make_status_widget(self):
         if self.response_progress > 0:
@@ -143,17 +324,32 @@ class Browser:
     def update_display(self):
         if self.status == Browser.DISCONECTED:
             self.display_widget.set_attr_map({None: "inactive_text"})
+            self.page_pile = None
             self.browser_body = urwid.Filler(urwid.Text("Disconnected\n"+self.g["arrow_l"]+"  "+self.g["arrow_r"], align="center"), "middle")
             self.browser_footer = urwid.Text("")
             self.browser_header = urwid.Text("")
+            self.linebox.set_title("Remote Node")
         else:
             self.display_widget.set_attr_map({None: "body_text"})
             self.browser_header = self.make_control_widget()
+            if self.destination_hash != None:
+                remote_display_string = self.app.directory.simplest_display_str(self.destination_hash)
+            else:
+                remote_display_string = ""
+
+            if self.loopback != None and remote_display_string == RNS.prettyhexrep(self.loopback):
+                remote_display_string = self.app.node.name
+
+            self.linebox.set_title(remote_display_string)
 
             if self.status == Browser.DONE:
                 self.browser_footer = self.make_status_widget()
                 self.update_page_display()
             
+            elif self.status == Browser.LINK_TIMEOUT:
+                self.browser_body = self.make_request_failed_widget()
+                self.browser_footer = urwid.Text("")
+            
             elif self.status <= Browser.REQUEST_SENT:
                 if len(self.attr_maps) == 0:
                     self.browser_body = urwid.Filler(urwid.Text("Retrieving\n["+self.current_url()+"]", align="center"), "middle")
@@ -177,7 +373,9 @@ class Browser:
 
     def update_page_display(self):
         pile = urwid.Pile(self.attr_maps)
-        self.browser_body = urwid.AttrMap(ScrollBar(Scrollable(pile), thumb_char="\u2503", trough_char=" "), "scrollbar")
+        pile.automove_cursor_on_scroll = True
+        self.page_pile = pile
+        self.browser_body = urwid.AttrMap(ScrollBar(Scrollable(pile, force_forward_keypress=True), thumb_char="\u2503", trough_char=" "), "scrollbar")
 
     def identify(self):
         if self.link != None:
@@ -189,16 +387,22 @@ class Browser:
         if self.link != None:
             self.link.teardown()
         
+        self.request_data = None
         self.attr_maps = []
         self.status = Browser.DISCONECTED
         self.response_progress = 0
         self.response_size = None
         self.response_transfer_size = None
 
+        self.history = []
+        self.history_ptr = 0
+        self.history_inc = False
+        self.history_dec = False
+
         self.update_display()
 
 
-    def retrieve_url(self, url):
+    def retrieve_url(self, url, request_data = None):
         self.previous_destination_hash = self.destination_hash
         self.previous_path = self.path
 
@@ -207,7 +411,7 @@ class Browser:
 
         components = url.split(":")
         if len(components) == 1:
-            if len(components[0]) == 20:
+            if len(components[0]) == (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2:
                 try:
                     destination_hash = bytes.fromhex(components[0])
                 except Exception as e:
@@ -216,7 +420,7 @@ class Browser:
             else:
                 raise ValueError("Malformed URL")
         elif len(components) == 2:
-            if len(components[0]) == 20:
+            if len(components[0]) == (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2:
                 try:
                     destination_hash = bytes.fromhex(components[0])
                 except Exception as e:
@@ -239,9 +443,20 @@ class Browser:
             raise ValueError("Malformed URL")
 
         if destination_hash != None and path != None:
-            self.set_destination_hash(destination_hash)
-            self.set_path(path)
-            self.load_page()
+            if path.startswith("/file/"):
+                if destination_hash != self.loopback:
+                    if destination_hash == self.destination_hash:
+                        self.download_file(destination_hash, path)
+                    else:
+                        RNS.log("Cannot request file download from a node that is not currently connected.", RNS.LOG_ERROR)
+                        RNS.log("The requested URL was: "+str(url), RNS.LOG_ERROR)
+                else:
+                    self.download_local_file(path)
+            else:
+                self.set_destination_hash(destination_hash)
+                self.set_path(path)
+                self.set_request_data(request_data)
+                self.load_page()
 
     def set_destination_hash(self, destination_hash):
         if len(destination_hash) == RNS.Identity.TRUNCATED_HASHLENGTH//8:
@@ -254,22 +469,293 @@ class Browser:
     def set_path(self, path):
         self.path = path
 
+    def set_request_data(self, request_data):
+        self.request_data = request_data
 
     def set_timeout(self, timeout):
         self.timeout = timeout
 
+    def download_local_file(self, path):
+        try:
+            file_path = self.app.filespath+path.replace("/file", "", 1)
+            if os.path.isfile(file_path):
+                file_name = os.path.basename(file_path)
+                file_destination = self.app.downloads_path+"/"+file_name
+
+                counter = 0
+                while os.path.isfile(file_destination):
+                    counter += 1
+                    file_destination = self.app.downloads_path+"/"+file_name+"."+str(counter)
+
+                fs = open(file_path, "rb")
+                fd = open(file_destination, "wb")
+                fd.write(fs.read())
+                fd.close()
+                fs.close()
+
+                self.saved_file_name = file_destination.replace(self.app.downloads_path+"/", "", 1)
+                
+                self.update_display()
+            else:
+                RNS.log("The requested local download file does not exist: "+str(file_path), RNS.LOG_ERROR)
+
+            self.status = Browser.DONE
+            self.response_progress = 0
+            
+        except Exception as e:
+            RNS.log("An error occurred while handling file response. The contained exception was: "+str(e), RNS.LOG_ERROR)
+
+    def download_file(self, destination_hash, path):
+        if self.link == None or self.link.destination.hash != self.destination_hash:
+            if not RNS.Transport.has_path(self.destination_hash):
+                self.status = Browser.NO_PATH
+                self.update_display()
+
+                RNS.Transport.request_path(self.destination_hash)
+                self.status = Browser.PATH_REQUESTED
+                self.update_display()
+
+                pr_time = time.time()
+                while not RNS.Transport.has_path(self.destination_hash):
+                    now = time.time()
+                    if now > pr_time+self.timeout:
+                        self.request_timeout()
+                        return
+
+                    time.sleep(0.25)
+
+            self.status = Browser.ESTABLISHING_LINK
+            self.update_display()
+
+            identity = RNS.Identity.recall(self.destination_hash)
+            destination = RNS.Destination(
+                identity,
+                RNS.Destination.OUT,
+                RNS.Destination.SINGLE,
+                self.app_name,
+                self.aspects
+            )
+
+            self.link = RNS.Link(destination, established_callback = self.link_established, closed_callback = self.link_closed)
+
+            while self.status == Browser.ESTABLISHING_LINK:
+                time.sleep(0.1)
+
+            if self.status != Browser.LINK_ESTABLISHED:
+                return
+
+            self.update_display()
+
+        if self.link != None and self.link.destination.hash == self.destination_hash:
+            # Send the request
+            self.status = Browser.REQUESTING
+            self.response_progress = 0
+            self.response_size = None
+            self.response_transfer_size = None
+            self.saved_file_name = None
+
+            self.update_display()
+            receipt = self.link.request(
+                path,
+                data = None,
+                response_callback = self.file_received,
+                failed_callback = self.request_failed,
+                progress_callback = self.response_progressed
+            )
+
+            if receipt:
+                self.last_request_receipt = receipt
+                self.last_request_id = receipt.request_id
+                self.status = Browser.REQUEST_SENT
+                self.update_display()
+            else:
+                self.link.teardown()
+
+    def write_history(self):
+        entry = [self.destination_hash, self.path]
+        self.history.insert(self.history_ptr, entry)
+        self.history_ptr += 1
+
+        if len(self.history) > self.history_ptr:
+            self.history = self.history[:self.history_ptr]
+
+    def back(self):
+        target_ptr = self.history_ptr-1
+        if not self.history_inc and not self.history_dec:
+            if target_ptr > 0:
+                self.history_dec = True
+                entry = self.history[target_ptr-1]
+                url = RNS.hexrep(entry[0], delimit=False)+":"+entry[1]
+                self.history_ptr = target_ptr
+                self.retrieve_url(url)
+
+    def forward(self):
+        target_ptr = self.history_ptr+1
+        if not self.history_inc and not self.history_dec:
+            if target_ptr <= len(self.history):
+                self.history_dec = True
+                entry = self.history[target_ptr-1]
+                url = RNS.hexrep(entry[0], delimit=False)+":"+entry[1]
+                self.history_ptr = target_ptr
+                self.retrieve_url(url)
+
+    def reload(self):
+        if not self.reloading and self.status == Browser.DONE:
+            self.reloading = True
+            self.uncache_page(self.current_url())
+            self.load_page()
+
+    def close_dialogs(self):
+        options = self.delegate.columns.options("weight", self.delegate.right_area_width)
+        self.delegate.columns.contents[1] = (self.display_widget, options)
+
+    def url_dialog(self):
+        e_url = UrlEdit(caption="URL : ", edit_text=self.current_url())
+
+        def dismiss_dialog(sender):
+            self.close_dialogs()
+
+        def confirmed(sender):
+            try:
+                self.retrieve_url(e_url.get_edit_text())
+            except Exception as e:
+                self.browser_footer = urwid.Text("Could not open link: "+str(e))
+                self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
+
+            self.close_dialogs()
+
+        dialog = UrlDialogLineBox(
+            urwid.Pile([
+                e_url,
+                urwid.Columns([("weight", 0.45, urwid.Button("Cancel", on_press=dismiss_dialog)), ("weight", 0.1, urwid.Text("")), ("weight", 0.45, urwid.Button("Go", on_press=confirmed))])
+            ]), title="Enter URL"
+        )
+        e_url.confirmed = confirmed
+        dialog.confirmed = confirmed
+        dialog.delegate = self
+        bottom = self.display_widget
+
+        overlay = urwid.Overlay(dialog, bottom, align="center", width=("relative", 65), valign="middle", height="pack", left=2, right=2)
+
+        options = self.delegate.columns.options("weight", self.delegate.right_area_width)
+        self.delegate.columns.contents[1] = (overlay, options)
+        self.delegate.columns.focus_position = 1
+
+    def save_node_dialog(self):
+        def dismiss_dialog(sender):
+            self.close_dialogs()
+
+        display_name = RNS.Identity.recall_app_data(self.destination_hash)
+        disp_str = ""
+        if display_name != None:
+            display_name = display_name.decode("utf-8")
+            disp_str = " \""+display_name+"\""
+            
+        def confirmed(sender):
+            node_entry = DirectoryEntry(self.destination_hash, display_name=display_name, hosts_node=True)
+            self.app.directory.remember(node_entry)
+            self.app.ui.main_display.sub_displays.network_display.directory_change_callback()
+
+            self.close_dialogs()
+
+        dialog = UrlDialogLineBox(
+            urwid.Pile([
+                urwid.Text("Save connected node"+disp_str+" "+RNS.prettyhexrep(self.destination_hash)+" to Known Nodes?\n"),
+                urwid.Columns([("weight", 0.45, urwid.Button("Cancel", on_press=dismiss_dialog)), ("weight", 0.1, urwid.Text("")), ("weight", 0.45, urwid.Button("Save", on_press=confirmed))])
+            ]), title="Save Node"
+        )
+
+        dialog.confirmed = confirmed
+        dialog.delegate = self
+        bottom = self.display_widget
+
+        overlay = urwid.Overlay(dialog, bottom, align="center", width=("relative", 50), valign="middle", height="pack", left=2, right=2)
+
+        options = self.delegate.columns.options("weight", self.delegate.right_area_width)
+        self.delegate.columns.contents[1] = (overlay, options)
+        self.delegate.columns.focus_position = 1
+
 
     def load_page(self):
-        load_thread = threading.Thread(target=self.__load)
-        load_thread.setDaemon(True)
-        load_thread.start()
+        if self.request_data == None:
+            cached = self.get_cached(self.current_url())
+        else:
+            cached = None
+
+        if cached:
+            self.status = Browser.DONE
+            self.page_data = cached
+            self.markup = self.page_data.decode("utf-8")
+            self.attr_maps = markup_to_attrmaps(self.markup, url_delegate=self)
+            
+            self.response_progress = 0
+            self.response_size = None
+            self.response_transfer_size = None
+            self.saved_file_name = None
+            self.loaded_from_cache = True
+
+            self.update_display()
+
+            if not self.history_inc and not self.history_dec and not self.reloading:
+                self.write_history()
+            else:
+                self.history_dec = False
+                self.history_inc = False
+                self.reloading = False
+
+        else:
+            if self.destination_hash != self.loopback:
+                load_thread = threading.Thread(target=self.__load)
+                load_thread.setDaemon(True)
+                load_thread.start()
+            else:
+                RNS.log("Browser handling local page: "+str(self.path), RNS.LOG_DEBUG)
+                page_path = self.app.pagespath+self.path.replace("/page", "", 1)
+
+                page_data = b"The requested local page did not exist in the file system"
+                if os.path.isfile(page_path):
+                    if os.access(page_path, os.X_OK):
+                        if self.request_data != None:
+                            env_map = self.request_data
+                        else:
+                            env_map = {}
+                            
+                        if "PATH" in os.environ:
+                            env_map["PATH"] = os.environ["PATH"]
+
+                        generated = subprocess.run([page_path], stdout=subprocess.PIPE, env=env_map)
+                        page_data = generated.stdout
+                    else:
+                        file = open(page_path, "rb")
+                        page_data = file.read()
+                        file.close()
+
+                self.status = Browser.DONE
+                self.page_data = page_data
+                self.markup = self.page_data.decode("utf-8")
+                self.attr_maps = markup_to_attrmaps(self.markup, url_delegate=self)
+                
+                self.response_progress = 0
+                self.response_size = None
+                self.response_transfer_size = None
+                self.saved_file_name = None
+                self.loaded_from_cache = False
+
+                self.update_display()
+
+                if not self.history_inc and not self.history_dec and not self.reloading:
+                    self.write_history()
+                else:
+                    self.history_dec = False
+                    self.history_inc = False
+                    self.reloading = False
 
 
     def __load(self):
         # If an established link exists, but it doesn't match the target
         # destination, we close and clear it.
         if self.link != None and self.link.destination.hash != self.destination_hash:
-            self.link.close()
+            self.link.teardown()
             self.link = None
 
         # If no link to the destination exists, we create one.
@@ -305,14 +791,11 @@ class Browser:
 
             self.link = RNS.Link(destination, established_callback = self.link_established, closed_callback = self.link_closed)
 
-            l_time = time.time()
-            while not self.status == Browser.LINK_ESTABLISHED:
-                now = time.time()
-                if now > l_time+self.timeout:
-                    self.request_timeout()
-                    return
+            while self.status == Browser.ESTABLISHING_LINK:
+                time.sleep(0.1)
 
-                time.sleep(0.25)
+            if self.status != Browser.LINK_ESTABLISHED:
+                return
 
             self.update_display()
 
@@ -321,36 +804,55 @@ class Browser:
         self.response_progress = 0
         self.response_size = None
         self.response_transfer_size = None
+        self.saved_file_name = None
+
 
         self.update_display()
         receipt = self.link.request(
             self.path,
-            data = None,
+            data = self.request_data,
             response_callback = self.response_received,
             failed_callback = self.request_failed,
-            progress_callback = self.response_progressed,
-            timeout = self.timeout
+            progress_callback = self.response_progressed
         )
 
-        self.last_request_receipt = receipt
-        self.last_request_id = receipt.request_id
+        if receipt:
+            self.last_request_receipt = receipt
+            self.last_request_id = receipt.request_id
+            self.status = Browser.REQUEST_SENT
+            self.update_display()
+        else:
+            self.link.teardown()
 
-        self.status = Browser.REQUEST_SENT
-        self.update_display()
 
 
     def link_established(self, link):
         self.status = Browser.LINK_ESTABLISHED
 
+        if self.app.directory.should_identify_on_connect(self.destination_hash):
+            RNS.log("Link established, identifying to remote system...", RNS.LOG_VERBOSE)
+            self.link.identify(self.app.identity)
+
 
     def link_closed(self, link):
         if self.status == Browser.DISCONECTED or self.status == Browser.DONE:
             self.link = None
+        elif self.status == Browser.ESTABLISHING_LINK:
+            self.link_establishment_timeout()
         else:
             self.link = None
             self.status = Browser.REQUEST_FAILED
         self.update_display()
 
+    def link_establishment_timeout(self):
+        self.status = Browser.LINK_TIMEOUT
+        self.response_progress = 0
+        self.response_size = None
+        self.response_transfer_size = None
+        self.link = None
+
+        self.update_display()
+
 
     def response_received(self, request_receipt):
         try:
@@ -359,10 +861,137 @@ class Browser:
             self.markup = self.page_data.decode("utf-8")
             self.attr_maps = markup_to_attrmaps(self.markup, url_delegate=self)
             self.response_progress = 0
+            self.loaded_from_cache = False
+
+            # Simple header handling. Should be expanded when more
+            # header tags are added.
+            cache_time = Browser.DEFAULT_CACHE_TIME
+            if self.markup[:4] == "#!c=":
+                endpos = self.markup.find("\n")
+                if endpos == -1:
+                    endpos = len(self.markup)
+                cache_time = int(self.markup[4:endpos])
+
+            self.update_display()
+
+            if not self.history_inc and not self.history_dec and not self.reloading:
+                self.write_history()
+            else:
+                self.history_dec = False
+                self.history_inc = False
+                self.reloading = False
+
+            if cache_time == 0:
+                RNS.log("Received page "+str(self.current_url())+", not caching due to header.", RNS.LOG_DEBUG)
+            else:
+                RNS.log("Received page "+str(self.current_url())+", caching for %.3f hours." % (cache_time/60/60), RNS.LOG_DEBUG)    
+                self.cache_page(cache_time)
+
+        except Exception as e:
+            RNS.log("An error occurred while handling response. The contained exception was: "+str(e))
+
+    def uncache_page(self, url):
+        url_hash = self.url_hash(url)
+        files = os.listdir(self.app.cachepath)
+        for file in files:
+            if file.startswith(url_hash):
+                cachefile = self.app.cachepath+"/"+file
+                os.unlink(cachefile)
+                RNS.log("Removed "+str(cachefile)+" from cache.", RNS.LOG_DEBUG)
+
+    def get_cached(self, url):
+        url_hash = self.url_hash(url)
+        files = os.listdir(self.app.cachepath)
+        for file in files:
+            cachepath = self.app.cachepath+"/"+file
+            try:
+                components = file.split("_")
+                if len(components) == 2 and len(components[0]) == 64 and len(components[1]) > 0:
+                    expires = float(components[1])
+
+                    if time.time() > expires:
+                        RNS.log("Removing stale cache entry "+str(file), RNS.LOG_DEBUG)
+                        os.unlink(cachepath)
+                    else:
+                        if file.startswith(url_hash):
+                            RNS.log("Found "+str(file)+" in cache.", RNS.LOG_DEBUG)
+                            RNS.log("Returning cached page", RNS.LOG_DEBUG)
+                            file = open(cachepath, "rb")
+                            data = file.read()
+                            file.close()
+                            return data
+
+            except Exception as e:
+                RNS.log("Error while parsing cache entry "+str(cachepath)+", removing it.", RNS.LOG_ERROR)
+                RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+                try:
+                    os.unlink(cachepath)
+                except Exception as e:
+                    RNS.log("Additionally, an exception occurred while unlinking the entry: "+str(e), RNS.LOG_ERROR)
+                    RNS.log("You will probably need to remove this entry manually by deleting the file: "+str(cachepath), RNS.LOG_ERROR)
+
+                
+        return None
+
+    def clean_cache(self):
+        files = os.listdir(self.app.cachepath)
+        for file in files:
+            cachepath = self.app.cachepath+"/"+file
+            try:
+                components = file.split("_")
+                if len(components) == 2 and len(components[0]) == 64 and len(components[1]) > 0:
+                    expires = float(components[1])
+
+                    if time.time() > expires:
+                        RNS.log("Removing stale cache entry "+str(file), RNS.LOG_DEBUG)
+                        os.unlink(cachepath)
+
+            except Exception as e:
+                pass
+
+
+    def cache_page(self, cache_time):
+        url_hash = self.url_hash(self.current_url())
+        if url_hash == None:
+            RNS.log("Could not cache page "+str(self.current_url()), RNS.LOG_ERROR)
+        else:
+            try:
+                self.uncache_page(self.current_url())
+                cache_expires = time.time()+cache_time
+                filename = url_hash+"_"+str(cache_expires)
+                cachefile = self.app.cachepath+"/"+filename
+                file = open(cachefile, "wb")
+                file.write(self.page_data)
+                file.close()
+                RNS.log("Cached page "+str(self.current_url())+" to "+str(cachefile), RNS.LOG_DEBUG)
+
+            except Exception as e:
+                RNS.log("Could not write cache file for page "+str(self.current_url()), RNS.LOG_ERROR)
+                RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+
+
+    def file_received(self, request_receipt):
+        try:
+            file_name = request_receipt.response[0]
+            file_data = request_receipt.response[1]
+            file_destination = self.app.downloads_path+"/"+file_name
+            
+            counter = 0
+            while os.path.isfile(file_destination):
+                counter += 1
+                file_destination = self.app.downloads_path+"/"+file_name+"."+str(counter)
+
+            fh = open(file_destination, "wb")
+            fh.write(file_data)
+            fh.close()
+
+            self.saved_file_name = file_destination.replace(self.app.downloads_path+"/", "", 1)
+            self.status = Browser.DONE
+            self.response_progress = 0
 
             self.update_display()
         except Exception as e:
-            RNS.log("An error occurred while handling response. The contained exception was: "+str(e))
+            RNS.log("An error occurred while handling file response. The contained exception was: "+str(e), RNS.LOG_ERROR)
 
     
     def request_failed(self, request_receipt=None):
@@ -394,18 +1023,24 @@ class Browser:
 
     def response_progressed(self, request_receipt):
         self.response_progress      = request_receipt.progress
-        self.response_time          = request_receipt.response_time()
+        self.response_time          = request_receipt.get_response_time()
         self.response_size          = request_receipt.response_size
         self.response_transfer_size = request_receipt.response_transfer_size
         self.update_display()
 
 
     def status_text(self):
-        if self.response_transfer_size != None:
-            response_time_str = "{:.2f}".format(self.response_time)
+        if self.status == Browser.DONE and self.response_transfer_size != None:
+            if self.response_time != None:
+                response_time_str = "{:.2f}".format(self.response_time)
+            else:
+                response_time_str = "None"
+
             stats_string = "  "+self.g["page"]+size_str(self.response_size)
             stats_string += "   "+self.g["arrow_d"]+size_str(self.response_transfer_size)+" in "+response_time_str
             stats_string += "s   "+self.g["speed"]+size_str(self.response_transfer_size/self.response_time, suffix="b")+"/s"
+        elif self.loaded_from_cache:
+            stats_string = " (cached)"
         else:
             stats_string = ""
 
@@ -415,6 +1050,8 @@ class Browser:
             return "Path requested, waiting for path..."
         elif self.status == Browser.ESTABLISHING_LINK:
             return "Establishing link..."
+        elif self.status == Browser.LINK_TIMEOUT:
+            return "Link establishment timed out"
         elif self.status == Browser.LINK_ESTABLISHED:
             return "Link established"
         elif self.status == Browser.REQUESTING:
@@ -428,7 +1065,10 @@ class Browser:
         elif self.status == Browser.RECEIVING_RESPONSE:
             return "Receiving response..."
         elif self.status == Browser.DONE:
-            return "Done"+stats_string
+            if self.saved_file_name == None:
+                return "Done"+stats_string
+            else:
+                return "Saved "+str(self.saved_file_name)+stats_string
         elif self.status == Browser.DISCONECTED:
             return "Disconnected"
         else:
@@ -459,3 +1099,17 @@ def size_str(num, suffix='B'):
         num /= 1000.0
 
     return "%.2f%s%s" % (num, last_unit, suffix)
+
+class UrlDialogLineBox(urwid.LineBox):
+    def keypress(self, size, key):
+        if key == "esc":
+            self.delegate.close_dialogs()
+        else:
+            return super(UrlDialogLineBox, self).keypress(size, key)
+
+class UrlEdit(urwid.Edit):
+    def keypress(self, size, key):
+        if key == "enter":
+            self.confirmed(self)
+        else:
+            return super(UrlEdit, self).keypress(size, key)

nomadnet/ui/textui/Config.py

@@ -1,5 +1,6 @@
 import nomadnet
 import urwid
+import platform
 
 class ConfigDisplayShortcuts():
     def __init__(self, app):
@@ -50,6 +51,12 @@ class EditorTerminal(urwid.WidgetWrap):
         self.app = app
         self.parent = parent
         editor_cmd = self.app.config["textui"]["editor"]
+
+        # The "editor" alias is unavailable on Darwin,
+        # so we replace it with nano.
+        if platform.system() == "Darwin" and editor_cmd == "editor":
+            editor_cmd = "nano"
+
         self.term = urwid.Terminal(
             (editor_cmd, self.app.configpath),
             encoding='utf-8',

nomadnet/ui/textui/Conversations.py

@@ -1,4 +1,5 @@
 import RNS
+import os
 import time
 import nomadnet
 import LXMF
@@ -13,13 +14,13 @@ class ConversationListDisplayShortcuts():
     def __init__(self, app):
         self.app = app
 
-        self.widget = urwid.AttrMap(urwid.Text("[Enter] Open  [C-e] Peer Info  [C-x] Delete  [C-n] New"), "shortcutbar")
+        self.widget = urwid.AttrMap(urwid.Text("[C-e] Peer Info  [C-x] Delete  [C-r] Sync  [C-n] New  [C-u] Ingest URI  [C-g] Fullscreen"), "shortcutbar")
 
 class ConversationDisplayShortcuts():
     def __init__(self, app):
         self.app = app
 
-        self.widget = urwid.AttrMap(urwid.Text("[C-d] Send  [C-k] Clear  [C-w] Close  [C-t] Editor Type  [C-p] Purge"), "shortcutbar")
+        self.widget = urwid.AttrMap(urwid.Text("[C-d] Send  [C-p] Paper Msg  [C-t] Title  [C-k] Clear  [C-w] Close  [C-u] Purge  [C-x] Clear History  [C-o] Sort"), "shortcutbar")
 
 class ConversationsArea(urwid.LineBox):
     def keypress(self, size, key):
@@ -29,6 +30,12 @@ class ConversationsArea(urwid.LineBox):
             self.delegate.delete_selected_conversation()
         elif key == "ctrl n":
             self.delegate.new_conversation()
+        elif key == "ctrl u":
+            self.delegate.ingest_lxm_uri()
+        elif key == "ctrl r":
+            self.delegate.sync_conversations()
+        elif key == "ctrl g":
+            self.delegate.toggle_fullscreen()
         elif key == "tab":
             self.delegate.app.ui.main_display.frame.set_focus("header")
         elif key == "up" and (self.delegate.ilb.first_item_is_selected() or self.delegate.ilb.body_is_empty()):
@@ -45,11 +52,13 @@ class DialogLineBox(urwid.LineBox):
 
 class ConversationsDisplay():
     list_width = 0.33
+    given_list_width = 52
     cached_conversation_widgets = {}
 
     def __init__(self, app):
         self.app = app
         self.dialog_open = False
+        self.sync_dialog = None
         self.currently_displayed_conversation = None
 
         def disp_list_shortcuts(sender, arg1, arg2):
@@ -60,8 +69,10 @@ class ConversationsDisplay():
 
         self.columns_widget = urwid.Columns(
             [
-                ("weight", ConversationsDisplay.list_width, self.listbox),
-                ("weight", 1-ConversationsDisplay.list_width, self.make_conversation_widget(None))
+                # ("weight", ConversationsDisplay.list_width, self.listbox),
+                # ("weight", 1-ConversationsDisplay.list_width, self.make_conversation_widget(None))
+                (ConversationsDisplay.given_list_width, self.listbox),
+                ("weight", 1, self.make_conversation_widget(None))
             ],
             dividechars=0, focus_column=0, box_columns=[0]
         )
@@ -86,7 +97,6 @@ class ConversationsDisplay():
         for conversation in self.app.conversations():
             conversation_list_widgets.append(self.conversation_list_widget(conversation))
 
-        walker = urwid.SimpleFocusListWalker(conversation_list_widgets)
         self.list_widgets = conversation_list_widgets
         self.ilb = IndicativeListBox(
             self.list_widgets,
@@ -95,12 +105,15 @@ class ConversationsDisplay():
             highlight_offFocus="list_off_focus"
         )
 
-        self.listbox = ConversationsArea(urwid.Filler(self.ilb, height=("relative", 100)))
+        self.listbox = ConversationsArea(urwid.Filler(self.ilb, height=("relative", 100)), title="Conversations")
         self.listbox.delegate = self
 
     def delete_selected_conversation(self):
         self.dialog_open = True
-        source_hash = self.ilb.get_selected_item().source_hash
+        item = self.ilb.get_selected_item()
+        if item == None:
+            return
+        source_hash = item.source_hash
 
         def dismiss_dialog(sender):
             self.update_conversation_list()
@@ -123,13 +136,17 @@ class ConversationsDisplay():
 
         overlay = urwid.Overlay(dialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
 
-        options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
+        # options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
+        options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
         self.columns_widget.contents[0] = (overlay, options)
 
     def edit_selected_in_directory(self):
         g = self.app.ui.glyphs
         self.dialog_open = True
-        source_hash_text = self.ilb.get_selected_item().source_hash
+        item = self.ilb.get_selected_item()
+        if item == None:
+            return
+        source_hash_text = item.source_hash
         display_name = self.ilb.get_selected_item().display_name
         if display_name == None:
             display_name = ""
@@ -140,9 +157,12 @@ class ConversationsDisplay():
 
         selected_id_widget = t_id
 
-        untrusted_selected = False
-        unknown_selected   = True
-        trusted_selected   = False
+        untrusted_selected  = False
+        unknown_selected    = True
+        trusted_selected    = False
+
+        direct_selected     = True
+        propagated_selected = False
 
         try:
             if self.app.directory.find(bytes.fromhex(source_hash_text)):
@@ -159,6 +179,11 @@ class ConversationsDisplay():
                     untrusted_selected = False
                     unknown_selected   = False
                     trusted_selected   = True
+
+                if self.app.directory.preferred_delivery(bytes.fromhex(source_hash_text)) == DirectoryEntry.PROPAGATED:
+                    direct_selected = False
+                    propagated_selected = True
+                    
         except Exception as e:
             pass
 
@@ -167,6 +192,10 @@ class ConversationsDisplay():
         r_unknown   = urwid.RadioButton(trust_button_group, "Unknown", state=unknown_selected)
         r_trusted   = urwid.RadioButton(trust_button_group, "Trusted", state=trusted_selected)
 
+        method_button_group = []
+        r_direct     = urwid.RadioButton(method_button_group, "Deliver directly", state=direct_selected)
+        r_propagated = urwid.RadioButton(method_button_group, "Use propagation nodes", state=propagated_selected)
+
         def dismiss_dialog(sender):
             self.update_conversation_list()
             self.dialog_open = False
@@ -181,7 +210,11 @@ class ConversationsDisplay():
                 elif r_trusted.state == True:
                     trust_level = DirectoryEntry.TRUSTED
 
-                entry = DirectoryEntry(source_hash, display_name, trust_level)
+                delivery = DirectoryEntry.DIRECT
+                if r_propagated.state == True:
+                    delivery = DirectoryEntry.PROPAGATED
+
+                entry = DirectoryEntry(source_hash, display_name, trust_level, preferred_delivery=delivery)
                 self.app.directory.remember(entry)
                 self.update_conversation_list()
                 self.dialog_open = False
@@ -207,7 +240,7 @@ class ConversationsDisplay():
                     (urwid.Button("OK", on_press=dismiss_dialog), options)
                 ]
             query_button = urwid.Button("Query network for keys", on_press=query_action, user_data=source_hash_text)
-            known_section = urwid.Pile([urwid.Divider(g["divider1"]), urwid.Text(g["info"]+"\n", align="center"), urwid.Text("The identity of this peer is not known, and you cannot currently communicate.\n", align="center"), query_button, urwid.Divider(g["divider1"])])
+            known_section = urwid.Pile([urwid.Divider(g["divider1"]), urwid.Text(g["info"]+"\n", align="center"), urwid.Text("The identity of this peer is not known, and you cannot currently send messages to it. You can query the network to obtain the identity.\n", align="center"), query_button, urwid.Divider(g["divider1"])])
 
         dialog_pile = urwid.Pile([
             selected_id_widget,
@@ -216,6 +249,9 @@ class ConversationsDisplay():
             r_untrusted,
             r_unknown,
             r_trusted,
+            urwid.Divider(g["divider1"]),
+            r_direct,
+            r_propagated,
             known_section,
             urwid.Columns([("weight", 0.45, urwid.Button("Save", on_press=confirmed)), ("weight", 0.1, urwid.Text("")), ("weight", 0.45, urwid.Button("Back", on_press=dismiss_dialog))])
         ])
@@ -227,7 +263,8 @@ class ConversationsDisplay():
 
         overlay = urwid.Overlay(dialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
 
-        options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
+        # options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
+        options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
         self.columns_widget.contents[0] = (overlay, options)
 
     def new_conversation(self):
@@ -265,6 +302,7 @@ class ConversationsDisplay():
                     self.app.directory.remember(entry)
 
                     new_conversation = nomadnet.Conversation(source_hash_text, nomadnet.NomadNetworkApp.get_shared_instance(), initiator=True)
+
                     self.update_conversation_list()
 
                 self.display_conversation(source_hash_text)
@@ -296,7 +334,112 @@ class ConversationsDisplay():
 
         overlay = urwid.Overlay(dialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
 
-        options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
+        # options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
+        options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+        self.columns_widget.contents[0] = (overlay, options)
+
+    def ingest_lxm_uri(self):
+        self.dialog_open = True
+        lxm_uri = ""
+        e_uri = urwid.Edit(caption="URI : ",edit_text=lxm_uri)
+
+        def dismiss_dialog(sender):
+            self.update_conversation_list()
+            self.dialog_open = False
+
+        def confirmed(sender):
+            try:
+                local_delivery_signal = "local_delivery_occurred"
+                duplicate_signal = "duplicate_lxm"
+                lxm_uri = e_uri.get_edit_text()
+
+                ingest_result = self.app.message_router.ingest_lxm_uri(
+                    lxm_uri,
+                    signal_local_delivery=local_delivery_signal,
+                    signal_duplicate=duplicate_signal
+                )
+
+                if ingest_result == False:
+                    raise ValueError("The URI contained no decodable messages")
+                
+                elif ingest_result == local_delivery_signal:
+                    rdialog_pile = urwid.Pile([
+                        urwid.Text("Message was decoded, decrypted successfully, and added to your conversation list."),
+                        urwid.Text(""),
+                        urwid.Columns([("weight", 0.6, urwid.Text("")), ("weight", 0.4, urwid.Button("OK", on_press=dismiss_dialog))])
+                    ])
+                    rdialog_pile.error_display = False
+
+                    rdialog = DialogLineBox(rdialog_pile, title="Ingest message URI")
+                    rdialog.delegate = self
+                    bottom = self.listbox
+
+                    roverlay = urwid.Overlay(rdialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+                    options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+                    self.columns_widget.contents[0] = (roverlay, options)
+                
+                elif ingest_result == duplicate_signal:
+                    rdialog_pile = urwid.Pile([
+                        urwid.Text("The decoded message has already been processed by the LXMF Router, and will not be ingested again."),
+                        urwid.Text(""),
+                        urwid.Columns([("weight", 0.6, urwid.Text("")), ("weight", 0.4, urwid.Button("OK", on_press=dismiss_dialog))])
+                    ])
+                    rdialog_pile.error_display = False
+
+                    rdialog = DialogLineBox(rdialog_pile, title="Ingest message URI")
+                    rdialog.delegate = self
+                    bottom = self.listbox
+
+                    roverlay = urwid.Overlay(rdialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+                    options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+                    self.columns_widget.contents[0] = (roverlay, options)
+                
+                else:
+                    if self.app.enable_node:
+                        propagation_text = "The decoded message was not addressed to this LXMF address, but has been added to the propagation node queues, and will be distributed on the propagation network."
+                    else:
+                        propagation_text = "The decoded message was not addressed to this LXMF address, and has been discarded."
+
+                    rdialog_pile = urwid.Pile([
+                        urwid.Text(propagation_text),
+                        urwid.Text(""),
+                        urwid.Columns([("weight", 0.6, urwid.Text("")), ("weight", 0.4, urwid.Button("OK", on_press=dismiss_dialog))])
+                    ])
+                    rdialog_pile.error_display = False
+
+                    rdialog = DialogLineBox(rdialog_pile, title="Ingest message URI")
+                    rdialog.delegate = self
+                    bottom = self.listbox
+
+                    roverlay = urwid.Overlay(rdialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+                    options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+                    self.columns_widget.contents[0] = (roverlay, options)
+
+            except Exception as e:
+                RNS.log("Could not ingest LXM URI. The contained exception was: "+str(e), RNS.LOG_VERBOSE)
+                if not dialog_pile.error_display:
+                    dialog_pile.error_display = True
+                    options = dialog_pile.options(height_type="pack")
+                    dialog_pile.contents.append((urwid.Text(""), options))
+                    dialog_pile.contents.append((urwid.Text(("error_text", "Could ingest LXM from URI data. Check your input."), align="center"), options))
+
+        dialog_pile = urwid.Pile([
+            e_uri,
+            urwid.Text(""),
+            urwid.Columns([("weight", 0.45, urwid.Button("Ingest", on_press=confirmed)), ("weight", 0.1, urwid.Text("")), ("weight", 0.45, urwid.Button("Back", on_press=dismiss_dialog))])
+        ])
+        dialog_pile.error_display = False
+
+        dialog = DialogLineBox(dialog_pile, title="Ingest message URI")
+        dialog.delegate = self
+        bottom = self.listbox
+
+        overlay = urwid.Overlay(dialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+        options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
         self.columns_widget.contents[0] = (overlay, options)
 
     def delete_conversation(self, source_hash):
@@ -304,29 +447,185 @@ class ConversationsDisplay():
             conversation = ConversationsDisplay.cached_conversation_widgets[source_hash]
             self.close_conversation(conversation)
 
+    def toggle_fullscreen(self):
+        if ConversationsDisplay.given_list_width != 0:
+            self.saved_list_width = ConversationsDisplay.given_list_width
+            ConversationsDisplay.given_list_width = 0
+        else:
+            ConversationsDisplay.given_list_width = self.saved_list_width
+
+        self.update_conversation_list()
+
+    def sync_conversations(self):
+        g = self.app.ui.glyphs
+        self.dialog_open = True
+        
+        def dismiss_dialog(sender):
+            self.dialog_open = False
+            self.sync_dialog = None
+            self.update_conversation_list()
+            if self.app.message_router.propagation_transfer_state >= LXMF.LXMRouter.PR_COMPLETE:
+                self.app.cancel_lxmf_sync()
+
+        max_messages_group = []
+        r_mall = urwid.RadioButton(max_messages_group, "Download all", state=True)
+        r_mlim = urwid.RadioButton(max_messages_group, "Limit to", state=False)
+        ie_lim = urwid.IntEdit("", 5)
+        rbs = urwid.GridFlow([r_mlim, ie_lim], 12, 1, 0, align="left")
+
+        def sync_now(sender):
+            limit = None
+            if r_mlim.get_state():
+                limit = ie_lim.value()
+            self.app.request_lxmf_sync(limit)
+            self.update_sync_dialog()
+
+        def cancel_sync(sender):
+            self.app.cancel_lxmf_sync()
+            self.update_sync_dialog()
+
+        cancel_button = urwid.Button("Close", on_press=dismiss_dialog)
+        sync_progress = SyncProgressBar("progress_empty" , "progress_full", current=self.app.get_sync_progress(), done=1.0, satt=None)
+
+        real_sync_button = urwid.Button("Sync Now", on_press=sync_now)
+        hidden_sync_button = urwid.Button("Cancel Sync", on_press=cancel_sync)
+
+        if self.app.get_sync_status() == "Idle" or self.app.message_router.propagation_transfer_state >= LXMF.LXMRouter.PR_COMPLETE:
+            sync_button = real_sync_button
+        else:
+            sync_button = hidden_sync_button
+
+        button_columns = urwid.Columns([("weight", 0.45, sync_button), ("weight", 0.1, urwid.Text("")), ("weight", 0.45, cancel_button)])
+        real_sync_button.bc = button_columns
+
+        pn_ident = None
+        if self.app.get_default_propagation_node() != None:
+            pn_hash = self.app.get_default_propagation_node()
+            pn_ident = RNS.Identity.recall(pn_hash)
+
+            if pn_ident == None:
+                RNS.log("Propagation node identity is unknown, requesting from network...", RNS.LOG_DEBUG)
+                RNS.Transport.request_path(pn_hash)
+
+        if pn_ident != None:
+            node_hash = RNS.Destination.hash_from_name_and_identity("nomadnetwork.node", pn_ident)
+            pn_entry = self.app.directory.find(node_hash)
+            pn_display_str = " "
+            if pn_entry != None:
+                pn_display_str += " "+str(pn_entry.display_name)
+            else:
+                pn_display_str += " "+RNS.prettyhexrep(pn_hash)
+
+            dialog = DialogLineBox(
+                urwid.Pile([
+                    urwid.Text(""+g["node"]+pn_display_str, align="center"),
+                    urwid.Divider(g["divider1"]),
+                    sync_progress,
+                    urwid.Divider(g["divider1"]),
+                    r_mall,
+                    rbs,
+                    urwid.Text(""),
+                    button_columns
+                ]), title="Message Sync"
+            )
+        else:
+            button_columns = urwid.Columns([("weight", 0.45, urwid.Text("" )), ("weight", 0.1, urwid.Text("")), ("weight", 0.45, cancel_button)])
+            dialog = DialogLineBox(
+                urwid.Pile([
+                    urwid.Text(""),
+                    urwid.Text("No trusted nodes found, cannot sync!\n", align="center"),
+                    urwid.Text("To syncronise messages from the network, one or more nodes must be marked as trusted in the Known Nodes list, or a node must manually be selected as the default propagation node. Nomad Network will then automatically sync from the nearest trusted node, or the manually selected one.", align="left"),
+                    urwid.Text(""),
+                    button_columns
+                ]), title="Message Sync"
+            )
+
+        dialog.delegate = self
+        dialog.sync_progress = sync_progress
+        dialog.cancel_button = cancel_button
+        dialog.real_sync_button = real_sync_button
+        dialog.hidden_sync_button = hidden_sync_button
+        dialog.bc = button_columns
+
+        self.sync_dialog = dialog
+        bottom = self.listbox
+
+        overlay = urwid.Overlay(dialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+        # options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
+        options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+        self.columns_widget.contents[0] = (overlay, options)
+
+    def update_sync_dialog(self, loop = None, sender = None):
+        if self.dialog_open and self.sync_dialog != None:
+            self.sync_dialog.sync_progress.set_completion(self.app.get_sync_progress())
+
+            if self.app.get_sync_status() == "Idle" or self.app.message_router.propagation_transfer_state >= LXMF.LXMRouter.PR_COMPLETE:
+                self.sync_dialog.bc.contents[0] = (self.sync_dialog.real_sync_button, self.sync_dialog.bc.options("weight", 0.45))
+            else:
+                self.sync_dialog.bc.contents[0] = (self.sync_dialog.hidden_sync_button, self.sync_dialog.bc.options("weight", 0.45))
+
+            self.app.ui.loop.set_alarm_in(0.2, self.update_sync_dialog)
+
+
     def conversation_list_selection(self, arg1, arg2):
         pass
 
     def update_conversation_list(self):
         ilb_position = self.ilb.get_selected_position()
         self.update_listbox()
-        options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
-        self.columns_widget.contents[0] = (self.listbox, options)
+        # options = self.columns_widget.options("weight", ConversationsDisplay.list_width)
+        options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+        if not (self.dialog_open and self.sync_dialog != None):
+            self.columns_widget.contents[0] = (self.listbox, options)
+        else:
+            bottom = self.listbox
+            overlay = urwid.Overlay(self.sync_dialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+            self.columns_widget.contents[0] = (overlay, options)
+
         if ilb_position != None:
             self.ilb.select_item(ilb_position)
         nomadnet.NomadNetworkApp.get_shared_instance().ui.loop.draw_screen()
 
+        if self.app.ui.main_display.sub_displays.active_display == self.app.ui.main_display.sub_displays.conversations_display:
+            if self.currently_displayed_conversation != None:
+                if self.app.conversation_is_unread(self.currently_displayed_conversation):
+                    self.app.mark_conversation_read(self.currently_displayed_conversation)
+                    try:
+                        if os.path.isfile(self.app.conversationpath + "/" + self.currently_displayed_conversation + "/unread"):
+                            os.unlink(self.app.conversationpath + "/" + self.currently_displayed_conversation + "/unread")
+                    except Exception as e:
+                        raise e
+
 
 
 
     def display_conversation(self, sender=None, source_hash=None):
+        if self.currently_displayed_conversation != None:
+            if self.app.conversation_is_unread(self.currently_displayed_conversation):
+                self.app.mark_conversation_read(self.currently_displayed_conversation)
+
         self.currently_displayed_conversation = source_hash
-        options = self.widget.options("weight", 1-ConversationsDisplay.list_width)
+        # options = self.widget.options("weight", 1-ConversationsDisplay.list_width)
+        options = self.widget.options("weight", 1)
         self.widget.contents[1] = (self.make_conversation_widget(source_hash), options)
         if source_hash == None:
             self.widget.set_focus_column(0)
         else:
+            if self.app.conversation_is_unread(source_hash):
+                self.app.mark_conversation_read(source_hash)
+                self.update_conversation_list()
+
             self.widget.set_focus_column(1)
+            conversation_position = None
+            index = 0
+            for widget in self.list_widgets:
+                if widget.source_hash == source_hash:
+                    conversation_position = index
+                index += 1
+
+            if conversation_position != None:
+                self.ilb.select_item(conversation_position)
         
 
     def make_conversation_widget(self, source_hash):
@@ -364,6 +663,7 @@ class ConversationsDisplay():
         trust_level  = conversation[2]
         display_name = conversation[1]
         source_hash  = conversation[0]
+        unread       = conversation[4]
 
         g = self.app.ui.glyphs
 
@@ -389,12 +689,19 @@ class ConversationsDisplay():
             focus_style   = "list_focus_untrusted"
 
         display_text = symbol
+
         if display_name != None and display_name != "":
             display_text += " "+display_name
 
         if trust_level != DirectoryEntry.TRUSTED:
             display_text += " <"+source_hash+">"
         
+        if trust_level != DirectoryEntry.UNTRUSTED:
+            if unread:
+                if source_hash != self.currently_displayed_conversation:
+                    display_text += " "+g["unread"]
+
+
         widget = ListEntry(display_text)
         urwid.connect_signal(widget, "click", self.display_conversation, conversation[0])
         display_widget = urwid.AttrMap(widget, style, focus_style)
@@ -441,6 +748,8 @@ class MessageEdit(urwid.Edit):
     def keypress(self, size, key):
         if key == "ctrl d":
             self.delegate.send_message()
+        elif key == "ctrl p":
+            self.delegate.paper_message()
         elif key == "ctrl k":
             self.delegate.clear_editor()
         elif key == "up":
@@ -487,6 +796,7 @@ class ConversationWidget(urwid.WidgetWrap):
                 self.source_hash = source_hash
                 self.conversation = nomadnet.Conversation(source_hash, nomadnet.NomadNetworkApp.get_shared_instance())
                 self.message_widgets = []
+                self.sort_by_timestamp = False
                 self.updating_message_widgets = False
 
                 self.update_message_widgets()
@@ -544,6 +854,31 @@ class ConversationWidget(urwid.WidgetWrap):
                 
                 urwid.WidgetWrap.__init__(self, self.display_widget)
 
+    def clear_history_dialog(self):
+        def dismiss_dialog(sender):
+            self.dialog_open = False
+            self.conversation_changed(None)
+
+        def confirmed(sender):
+            self.dialog_open = False
+            self.conversation.clear_history()
+            self.conversation_changed(None)
+
+
+        dialog = DialogLineBox(
+            urwid.Pile([
+                urwid.Text("Clear conversation history\n", align="center"),
+                urwid.Columns([("weight", 0.45, urwid.Button("Yes", on_press=confirmed)), ("weight", 0.1, urwid.Text("")), ("weight", 0.45, urwid.Button("No", on_press=dismiss_dialog))])
+            ]), title="?"
+        )
+        dialog.delegate = self
+        bottom = self.messagelist
+
+        overlay = urwid.Overlay(dialog, bottom, align="center", width=34, valign="middle", height="pack", left=2, right=2)
+
+        self.frame.contents["body"] = (overlay, self.frame.options())
+        self.frame.set_focus("body")
+    
     def toggle_editor(self):
         if self.full_editor_active:
             self.frame.contents["footer"] = (self.minimal_editor, None)
@@ -559,7 +894,7 @@ class ConversationWidget(urwid.WidgetWrap):
             if allowed:
                 self.frame.contents["footer"] = (self.minimal_editor, None)
             else:
-                warning = urwid.AttrMap(urwid.Padding(urwid.Text(g["info"]+" You cannot currently communicate with this peer, since it's identity keys are unknown", align="center")), "msg_header_caution")
+                warning = urwid.AttrMap(urwid.Padding(urwid.Text("\n"+g["info"]+"\n\nYou cannot currently message this peer, since it's identity keys are not known.\n\nWait for an announce to arrive from the peer, or query the network for it.\n\nTo query the network, select this conversation in the conversation list, press Ctrl-E, and use the query button.\n", align="center")), "msg_header_caution")
                 self.frame.contents["footer"] = (warning, None)
 
     def toggle_focus_area(self):
@@ -579,11 +914,18 @@ class ConversationWidget(urwid.WidgetWrap):
             self.toggle_focus_area()
         elif key == "ctrl w":
             self.close()
-        elif key == "ctrl p":
+        elif key == "ctrl u":
             self.conversation.purge_failed()
             self.conversation_changed(None)
         elif key == "ctrl t":
             self.toggle_editor()
+        elif key == "ctrl x":
+            self.clear_history_dialog()
+        elif key == "ctrl g":
+            nomadnet.NomadNetworkApp.get_shared_instance().ui.main_display.sub_displays.conversations_display.toggle_fullscreen()
+        elif key == "ctrl o":
+            self.sort_by_timestamp ^= True
+            self.conversation_changed(None)
         else:
             return super(ConversationWidget, self).keypress(size, key)
 
@@ -604,7 +946,10 @@ class ConversationWidget(urwid.WidgetWrap):
                 message_widget = LXMessageWidget(message)
                 self.message_widgets.append(message_widget)
         
-        self.message_widgets.sort(key=lambda m: m.timestamp, reverse=False)
+        if self.sort_by_timestamp:
+            self.message_widgets.sort(key=lambda m: m.timestamp, reverse=False)
+        else:
+            self.message_widgets.sort(key=lambda m: m.sort_timestamp, reverse=False)
 
         from nomadnet.vendor.additional_urwid_widgets import IndicativeListBox
         self.messagelist = IndicativeListBox(self.message_widgets, position = len(self.message_widgets)-1)
@@ -629,6 +974,34 @@ class ConversationWidget(urwid.WidgetWrap):
             else:
                 pass
 
+    def paper_message(self):
+        content = self.content_editor.get_edit_text()
+        title = self.title_editor.get_edit_text()
+        if not content == "":
+            if self.conversation.paper_output(content, title):
+                self.clear_editor()
+            else:
+                self.paper_message_failed()
+
+    def paper_message_failed(self):
+        def dismiss_dialog(sender):
+            self.dialog_open = False
+            self.conversation_changed(None)
+
+        dialog = DialogLineBox(
+            urwid.Pile([
+                urwid.Text("Could not output paper message,\ncheck your settings. See the log\nfile for any error messages.\n", align="center"),
+                urwid.Columns([("weight", 0.6, urwid.Text("")), ("weight", 0.4, urwid.Button("OK", on_press=dismiss_dialog))])
+            ]), title="!"
+        )
+        dialog.delegate = self
+        bottom = self.messagelist
+
+        overlay = urwid.Overlay(dialog, bottom, align="center", width=34, valign="middle", height="pack", left=2, right=2)
+
+        self.frame.contents["body"] = (overlay, self.frame.options())
+        self.frame.set_focus("body")
+
     def close(self):
         self.delegate.close_conversation(self)
 
@@ -638,13 +1011,14 @@ class LXMessageWidget(urwid.WidgetWrap):
         app = nomadnet.NomadNetworkApp.get_shared_instance()
         g = app.ui.glyphs
         self.timestamp = message.get_timestamp()
+        self.sort_timestamp = message.sort_timestamp
         time_format = app.time_format
         message_time = datetime.fromtimestamp(self.timestamp)
         encryption_string = ""
         if message.get_transport_encrypted():
-            encryption_string = " ["+g["lock"]+" "+str(message.get_transport_encryption())+"]"
+            encryption_string = " ["+g["encrypted"]+" "+str(message.get_transport_encryption())+"]"
         else:
-            encryption_string = " ["+g["unlock"]+" "+str(message.get_transport_encryption())+"]"
+            encryption_string = " ["+g["plaintext"]+" "+str(message.get_transport_encryption())+"]"
         
         title_string = message_time.strftime(time_format)+encryption_string
 
@@ -655,6 +1029,15 @@ class LXMessageWidget(urwid.WidgetWrap):
             elif message.lxm.state == LXMF.LXMessage.FAILED:
                 header_style = "msg_header_failed"
                 title_string = g["cross"]+" "+title_string
+            elif message.lxm.method == LXMF.LXMessage.PROPAGATED and message.lxm.state == LXMF.LXMessage.SENT:
+                header_style = "msg_header_propagated"
+                title_string = g["sent"]+" "+title_string
+            elif message.lxm.method == LXMF.LXMessage.PAPER and message.lxm.state == LXMF.LXMessage.PAPER:
+                header_style = "msg_header_propagated"
+                title_string = g["papermsg"]+" "+title_string
+            elif message.lxm.state == LXMF.LXMessage.SENT:
+                header_style = "msg_header_sent"
+                title_string = g["sent"]+" "+title_string
             else:
                 header_style = "msg_header_sent"
                 title_string = g["arrow_r"]+" "+title_string
@@ -678,3 +1061,12 @@ class LXMessageWidget(urwid.WidgetWrap):
         ])
 
         urwid.WidgetWrap.__init__(self, display_widget)
+
+class SyncProgressBar(urwid.ProgressBar):
+    def get_text(self):
+        status = nomadnet.NomadNetworkApp.get_shared_instance().get_sync_status()
+        show_percent = nomadnet.NomadNetworkApp.get_shared_instance().sync_status_show_percent()
+        if show_percent:
+            return status+" "+super().get_text()
+        else:
+            return status

nomadnet/ui/textui/Extras.py

@@ -5,7 +5,7 @@ class IntroDisplay():
 
         font = urwid.font.HalfBlock5x4Font()
 
-        big_text = urwid.BigText(("intro_title", "Nomad Network"), font)
+        big_text = urwid.BigText(("intro_title", self.app.config["textui"]["intro_text"]), font)
         big_text = urwid.Padding(big_text, align="center", width="clip")
 
         intro = urwid.Pile([
@@ -17,45 +17,3 @@ class IntroDisplay():
 
         self.widget = urwid.Filler(intro)
 
-
-class DemoDisplay():
-    def __init__(self, ui, app):
-        import urwid
-
-        def color_mono(btn):
-            ui.set_colormode(nomadnet.ui.COLORMODE_MONO)
-
-        def color_16(btn):
-            ui.set_colormode(nomadnet.ui.COLORMODE_16)
-
-        def color_88(btn):
-            ui.set_colormode(nomadnet.ui.COLORMODE_88)
-
-        def color_8bit(btn):
-            ui.set_colormode(nomadnet.ui.COLORMODE_256)
-
-        def color_true(btn):
-            ui.set_colormode(nomadnet.ui.COLORMODE_TRUE)
-
-        # pile = urwid.Pile([
-        #     urwid.Text(("heading", "This is a heading")),
-        #     urwid.Text(("body_text", "Hello World \U0001F332")),
-        #     urwid.Button(("buttons", "Monochrome"), color_mono),
-        #     urwid.Button(("buttons", "16 color"), color_16),
-        #     urwid.Button(("buttons", "88 color"), color_88),
-        #     urwid.Button(("buttons", "256 color"), color_8bit),
-        #     urwid.Button(("buttons", "True color"), color_true),
-        # ])
-
-        gf = urwid.GridFlow([
-            urwid.Text(("heading", "This is a heading")),
-            urwid.Text(("body_text", "Hello World \U0001F332")),
-            urwid.Button(("buttons", "Monochrome"), color_mono),
-            urwid.Button(("buttons", "16 color"), color_16),
-            urwid.Button(("buttons", "88 color"), color_88),
-            urwid.Button(("buttons", "256 color"), color_8bit),
-            urwid.Button(("buttons", "True color"), color_true),
-        ], cell_width=20, h_sep=0, v_sep=0, align="left")
-
-        self.widget = urwid.Filler(urwid.Padding((urwid.Text("Test"),urwid.Text("Test 2"))), 'top')
-        #self.widget = urwid.Filler(pile, 'top')

nomadnet/ui/textui/Guide.py

@@ -61,14 +61,16 @@ class SelectText(urwid.Text):
         return True
 
 class GuideEntry(urwid.WidgetWrap):
-    def __init__(self, app, reader, topic_name):
+    def __init__(self, app, parent, reader, topic_name):
         self.app = app
+        self.parent = parent
         self.reader = reader
         self.last_keypress = None
+        self.topic_name = topic_name
         g = self.app.ui.glyphs
 
         widget = ListEntry(topic_name)
-        urwid.connect_signal(widget, "click", self.display_topic, topic_name)
+        urwid.connect_signal(widget, "click", self.display_topic, self.topic_name)
 
         style = "topic_list_normal"
         focus_style = "list_focus"
@@ -79,7 +81,20 @@ class GuideEntry(urwid.WidgetWrap):
         markup = TOPICS[topic]
         attrmaps = markup_to_attrmaps(markup, url_delegate=None)
 
+        topic_position = None
+        index = 0
+        for topic in self.parent.topic_list:
+            widget = topic._original_widget
+            if widget.topic_name == self.topic_name:
+                topic_position = index
+            index += 1
+
+        if topic_position != None:
+            self.parent.ilb.select_item(topic_position)
+
         self.reader.set_content_widgets(attrmaps)
+        self.reader.focus_reader()
+
 
     def micron_released_focus(self):
         self.reader.focus_topics()
@@ -89,17 +104,25 @@ class TopicList(urwid.WidgetWrap):
         self.app = app
         g = self.app.ui.glyphs
 
+        self.first_run_entry = GuideEntry(self.app, self, guide_display, "First Run")
+
         self.topic_list = [
-            GuideEntry(self.app, guide_display, "Introduction"),
-            # GuideEntry(self.app, guide_display, "Conversations"),
-            GuideEntry(self.app, guide_display, "Markup"),
-            GuideEntry(self.app, guide_display, "First Run"),
-            GuideEntry(self.app, guide_display, "Credits & Licenses"),
+            GuideEntry(self.app, self, guide_display, "Introduction"),
+            GuideEntry(self.app, self, guide_display, "Concepts & Terminology"),
+            GuideEntry(self.app, self, guide_display, "Hosting a Node"),
+            GuideEntry(self.app, self, guide_display, "Configuration Options"),
+            GuideEntry(self.app, self, guide_display, "Keyboard Shortcuts"),
+            GuideEntry(self.app, self, guide_display, "Markup"),
+            self.first_run_entry,
+            GuideEntry(self.app, self, guide_display, "Network Configuration"),
+            GuideEntry(self.app, self, guide_display, "Display Test"),
+            GuideEntry(self.app, self, guide_display, "Credits & Licenses"),
         ]
 
         self.ilb = IndicativeListBox(
             self.topic_list,
             initialization_is_selection_change=False,
+            highlight_offFocus="list_off_focus"
         )
 
         urwid.WidgetWrap.__init__(self, urwid.LineBox(self.ilb, title="Topics"))
@@ -118,7 +141,7 @@ class GuideDisplay():
         self.app = app
         g = self.app.ui.glyphs
 
-        topic_text = urwid.Text("\nNo topic selected", align="left")
+        topic_text = urwid.Text("\n  No topic selected", align="left")
 
         self.left_area  = TopicList(self.app, self)
         self.right_area = urwid.LineBox(urwid.Filler(topic_text, "top"))
@@ -135,6 +158,10 @@ class GuideDisplay():
         self.shortcuts_display = GuideDisplayShortcuts(self.app)
         self.widget = self.columns
 
+        if self.app.firstrun:
+            entry = self.left_area.first_run_entry
+            entry.display_topic(entry.display_topic, entry.topic_name)
+
     def set_content_widgets(self, new_content):
         options = self.columns.options(width_type="weight", width_amount=1-GuideDisplay.list_width)
         pile = urwid.Pile(new_content)
@@ -149,6 +176,9 @@ class GuideDisplay():
     def focus_topics(self):
         self.columns.focus_position = 0
 
+    def focus_reader(self):
+        self.columns.focus_position = 1
+
 
 TOPIC_INTRODUCTION = '''>Nomad Network
 
@@ -157,13 +187,57 @@ TOPIC_INTRODUCTION = '''>Nomad Network
 
 The intention with this program is to provide a tool to that allows you to build private and resilient communications platforms that are in complete control and ownership of the people that use them.
 
-Nomad Network is build on LXMF and Reticulum, which together provides the cryptographic mesh functionality and peer-to-peer message routing that Nomad Network relies on. This foundation also makes it possible to use the program over a very wide variety of communication mediums, from packet radio to gigabit fiber.
+Nomad Network is build on LXMF and Reticulum, which together provides the cryptographic mesh functionality and peer-to-peer message routing that Nomad Network relies on. This foundation also makes it possible to use the program over a very wide variety of communication mediums, from packet radio to fiber.
 
 Nomad Network does not need any connections to the public internet to work. In fact, it doesn't even need an IP or Ethernet network. You can use it entirely over packet radio, LoRa or even serial lines. But if you wish, you can bridge islanded Reticulum networks over the Internet or private ethernet networks, or you can build networks running completely over the Internet. The choice is yours.
 
-The current version of the program should be considered an alpha release. The program works well, but there will most probably be bugs and possibly sub-optimal performance in some scenarios. On the other hand, this is the best time to have an influence on the direction of the development of Nomad Network. To do so, join the discussion on the Nomad Network project on GitHub.
+The current version of the program should be considered a beta release. The program works well, but there will most probably be bugs and possibly sub-optimal performance in some scenarios. On the other hand, this is the best time to have an influence on the direction of the development of Nomad Network. To do so, join the discussion on the Nomad Network project on GitHub.
 
->Concepts and Terminology
+'''
+
+TOPIC_SHORTCUTS = '''>Keyboard Shortcuts
+
+The different sections of the program has a number of keyboard shortcuts mapped, that makes operating and navigating the program easier. The following lists details all mapped shortcuts.
+
+>>`!Conversations Window`!
+>>>Conversation List
+ - Ctrl-N   Start a new conversation
+ - Ctrl-E   Display and edit selected peer info
+ - Ctrl-X   Delete conversation
+ - Ctrl-R   Open LXMF syncronisation dialog
+
+>>>Conversation Display
+ - Ctrl-D   Send message
+ - Ctrl-K   Clear input fields
+ - Ctrl-T   Toggle message title field
+ - Ctrl-O   Toggle sort mode
+ - Ctrl-P   Purge failed messages
+ - Ctrl-X   Clear conversation history
+ - Ctrl-G   Toggle fullscreen conversation
+ - Ctrl-W   Close conversation
+
+>>`!Network Window`!
+>>>Announce Stream
+ - Ctrl-L   Switch to Known Nodes list
+ - Ctrl-X   Delete selected announce
+ - Ctrl-P   Display peered LXMF Propagation Nodes
+
+>>>Known Nodes
+ - Ctrl-L   Switch to Announce Stream
+ - Ctrl-X   Delete selected node entry
+ - Ctrl-P   Display peered LXMF Propagation Nodes
+
+>>>Browser
+ - Ctrl-D   Back
+ - Ctrl-F   Forward
+ - Ctrl-R   Reload page
+ - Ctrl-U   Open URL entry dialog
+ - Ctrl-S   Save connected node
+ - Ctrl-G   Toggle fullscreen browser window
+ - Ctrl-W   Disconnect from node
+'''
+
+TOPIC_CONCEPTS = '''>Concepts and Terminology
 
 The following section will briefly introduce various concepts and terms used in the program.
 
@@ -171,9 +245,20 @@ The following section will briefly introduce various concepts and terms used in
 
 A `*peer`* refers to another Nomad Network client, which will generally be operated by another person. But since Nomad Network is a general LXMF client, it could also be any other LXMF client, program, automated system or machine that can communicate over LXMF.
 
+All peers (and nodes) are identified by their `*address`* (which is, technically speaking, a Reticulum destination hash). An address consist of 32 hexadecimal characters (16 bytes), and looks like this:
+
+`c<e9eafceea9e3664a5c55611c5e8c420a>
+`l
+
+Anyone can choose whatever display name they want, but addresses are always unique, and generated from the unique cryptographic keys of the peer. This is an important point to understand. Since there is not anyone controlling naming or address spaces in Nomad Network, you can easily come across another user with the same display name as you.
+
+Your addresses will always be unique though, and you must always verify that the address you are communicating with is matching the address of the peer you expect to be in the other end.
+
+To make this easier, Nomad Network allows you to mark peers and nodes as either `*trusted`*, `*unknown`* or `*untrusted`*. In this way, you can mark the peers and nodes that you know to be legitimate, and easily spot peers with similar names as unrelated.
+
 >>Announces
 
-An `*announce`* can be sent by any peer on the network, which will notify other peers of its existence, and contains the cryptographic keys that allows other peers to communicate with it.
+An `*announce`* can be sent by any peer or node on the network, which will notify other peers of its existence, and contains the cryptographic keys that allows other peers to communicate with it.
 
 In the `![ Network ]`! section of the program, you can monitor announces on the network, initiate conversations with announced peers, and announce your own peer on the network. You can also connect to nodes on the network and browse information shared by them.
 
@@ -181,17 +266,114 @@ In the `![ Network ]`! section of the program, you can monitor announces on the
 
 Nomad Network uses the term `*conversation`* to signify both direct peer-to-peer messaging threads, and also discussion threads with an arbitrary number of participants that might change over time.
 
-Both things like discussion forums and chat threads can be encapsulated as conversations in Nomad Network. The user interface will indicate the different characteristics a conversation can take, and also what form of transport encryption messages within used.
+Both things like discussion forums and chat threads can be encapsulated as conversations in Nomad Network. The user interface will indicate the different characteristics a conversation can take, and also what form of transport encryption was used for messages within.
 
-In the `![ Conversations ]`! part of the program you can view and interact with all currently active conversations. You can also edit nickname and trust settings for peers here.
+In the `![ Conversations ]`! part of the program you can view and interact with all currently active conversations. You can also edit nickname and trust settings for peers belonging to these conversations here. To edit settings for a peer, select it in the conversation list, and press `!Ctrl-E`!.
+
+By default, Nomad Network will attempt to deliver messages to a peer directly. This happens by first establishing an encrypted link directly to the peer, and then delivering the message over it.
+
+If the desired peer is not available because it has disconnected from the network, this method will obviously fail. In this case, Nomad Network will attempt to deliver the message to a node, which will store and forward it over the network, for later retrieval by the destination peer. The message is encrypted before being transmitted to the network, and is only readable by the intended recipient.
+
+For propagated delivery to work, one or more nodes must be available on the network. If one or more trusted nodes are available, Nomad Network will automatically select the most suitable node to send the message via, but you can also manually specify what node to use.
+
+To select a node manually, go to the `![ Network ]`! part of the program, choose the desired node in the `*Known Nodes`* list, and select the `!< Info >`! button. In the `!Node Info`! dialog, you can specify the selected node as the default propagation node.
+
+By default, Nomad Network will check in with propagation nodes, and download any available messages every 6 hours. You can change this interval, or disable automatic syncronisation completely, by editing the configuration file.
+
+You can always initiate a sync manually, by pressing `!Ctrl-R`! in the `![ Conversations ]`! part of the program, which will open the syncronisation window.
 
 >>Node
 
 A Nomad Network `*node`* is an instance of the Nomad Network program that has been configured to host information for other peers and help propagate messages and information on the network.
 
-Nodes can host pages (similar to webpages) written in a markup-language called `*micron`*, as well as make files and other resources available for download for peers on the network. Nodes are also integral in allowing forum/discussion threads to exist and propagate on the network.
+Nodes can host pages (similar to webpages) written in a markup-language called `*micron`*, as well as make files and other resources available for download for peers on the network. Nodes also form a distributed message store for offline users, and allows messages to be exchanged between peers that are not online at the same time.
 
-If no nodes exist on a network, all peers will still be able to communicate directly peer-to-peer, but both endpoints of a conversation will need to be online at the same time to converse. When nodes exist on the network, messages will be held and syncronised between nodes for deferred delivery if the destination peer is unavailable.
+If no nodes exist on a network, all peers will still be able to communicate directly peer-to-peer, but both endpoints of a conversation will need to be available at the same time to converse. When nodes exist on the network, messages will be held and syncronised between nodes for deferred delivery if the destination peer is unavailable. Nodes will automatically discover and peer with each other, and handle syncronisation of message stores.
+
+To learn how to host your own node, read the `*Hosting a Node`* section of this guide.
+
+'''
+
+TOPIC_HOSTING = '''>Hosting a Node
+
+To host a node on the network, you must enable it in the configuration file, by setting `*enable_node`* directive to `*yes`*. You should also configure the other node-related parameters such as the node name and announce interval settings. Once node hosting has been enabled in the configuration, Nomad Network will start hosting your node as soon as the program is launched, and other peers on the network will be able to connect and interact with content on your node.
+
+By default, no content is defined, apart from a short placeholder home page. To learn how to add your own content, read on.
+
+>>Distributed Message Store
+
+All nodes on the network automatically form a distributed message store that allows users to exchange messages, even when they are not available at the same time.
+
+When Nomad Network is configured to host a node, it also configures itself as an LXMF Propagation Node, and automatically discovers and peers with other propagation nodes on the network. This process is completely automatic and requires no configuration from the node operator.
+
+To view LXMF Propagation nodes that are currently peered with your node, go to the `![ Network ]`! part of the program and press `!Ctrl-P`!.
+
+The distributed message store is resilient to intermittency, and will remain functional as long as at least one node remains on the network. Nodes that were offline for a time will automatically be synced up to date when they regain connectivity.
+
+>>Pages
+
+Nomad Network nodes can host pages similar to web pages, that other peers can read and interact with. Pages are written in a compact markup language called `*micron`*. To learn how to write formatted pages with micron, see the `*Markup`* section of this guide (which is, itself, written in micron). Pages can be linked together with hyperlinks, that can also link to pages (or other resources) on other nodes.
+
+To add pages to your node, place micron files in the `*pages`* directory of your Nomad Network programs `*storage`* directory. By default, the path to this will be `!~/.nomadnetwork/storage/pages`!. You should probably create the file `!index.mu`! first, as this is the page that will get served by default to a connecting peer.
+
+You can control how long a peer will cache your pages by including the cache header in a page. To do so, the first line of your page must start with `!#!c=X`!, where `!X`! is the cache time in seconds. To tell the peer to always load the page from your node, and never cache it, set the cache time to zero. You should only do this if there is a real need, for example if your page displays dynamic content that `*must`* be updated at every page view. The default caching time is 12 hours. In most cases, you should not need to include the cache control header in your pages.
+
+>> Dynamic Pages
+
+You can use a preprocessor such as PHP, bash, Python (or whatever you prefer) to generate dynamic pages. To do so, just set executable permissions on the relevant page file, and be sure to include the interpreter at the beginning of the file, for example `!#!/usr/bin/python3`!.
+
+Data from fields and link variables will be passed to these scipts or programs as environment variables, and can simply be read by any method for acessing such.
+
+In the `!examples`! directory, you can find various small examples for the use of this feature. The currently included examples are:
+
+ - A messageboard that receives messages over LXMF, contributed by trippcheng
+ - A simple demonstration on how to create fields and read entered data in node-side scripts
+
+By default, you can find the examples in `!~/.nomadnetwork/examples`!. If you build something neat, that you feel would fit here, you are more than welcome to contribute it.
+
+>>Authenticating Users
+
+Sometimes, you don't want everyone to be able to view certain pages or execute certain scripts. In such cases, you can use `*authentication`* to control who gets to run certain requests.
+
+To enable authentication for any page, simply add a new file to your pages directory with ".allowed" added to the file-name of the page. If your page is named "secret_page.mu", just add a file named "secret_page.mu.allowed".
+
+For each user allowed to access the page, add a line to this file, containing the hash of that users primary identity. Users can find their own identity hash in the `![ Network ]`! part of the program, under `!Local Peer Info`!. If you want to allow access for three different users, your file would look like this:
+
+`Faaa
+`=
+d454bcdac0e64fb68ba8e267543ae110
+2b9ff3fb5902c9ca5ff97bdfb239ef50
+7106d5abbc7208bfb171f2dd84b36490
+`=
+``
+
+You can also dynamically generate this list, by making the file executable, and writing a script (in whatever language you want), that prints the list to stdout. Every time someone tries to request the page, Nomad Network will check the allowed identities list, and only grant access to allowed users.
+
+By default, Nomad Network connects anonymously to all nodes. To be able to identify, and access restricted pages, you must allow identifying on a per-node basis. To allow identifying when connecting to a node, you must go to the `!Known Nodes`! list in the `![ Network ]`! part of the program, and enable the `!Identify When Connecting`! checkbox under `!Node Info`!.
+
+>>Files
+
+Like pages, you can place files you want to make available in the `!~/.nomadnetwork/storage/files`! directory. To let a peer download a file, you should create a link to it in one of your pages.
+
+>>Links and URLs
+
+Links to pages and resources in Nomad Network use a simple URL format. Here is an example:
+
+`!18176ffddcc8cce1ddf8e3f72068f4a6:/page/index.mu`!
+
+The first part is the 10 byte destination address of the node (represented as readable hexadecimal), followed by the `!:`! character. Everything after the `!:`! represents the request path.
+
+By convention, Nomad Network nodes maps all hosted pages under the `!/page`! path, and all hosted files under the `!/file`! path. You can create as many subdirectories for pages and files as you please, and they will be automatically mapped to corresponding request paths.
+
+You can omit the destination address of the node, if you are reffering to a local page or file. You must still keep the `!:`! character. In such a case, the URL to a page could look like this:
+
+`!:/page/other_page.mu`!
+
+The URL to a local file could look like this:
+
+`!:/file/document.pdf`!
+
+Links can be inserted into micron documents. See the `*Markup`* section of this guide for info on how to do so.
 
 '''
 
@@ -200,6 +382,401 @@ TOPIC_CONVERSATIONS = '''>Conversations
 Conversations in Nomad Network
 '''
 
+
+TOPIC_FIRST_RUN = '''>First Time Information
+
+Hi there. This first run message will only appear once. It contains a few pointers on getting started with Nomad Network, and getting the most out of the program.
+
+You're currently located in the guide section of the program. I'm sorry I had to drag you here by force, but it will only happen this one time, I promise. If you ever get lost, return here and peruse the list of topics you see on the left. I will do my best to fill it with answers to mostly anything about Nomad Network.
+
+To get the most out of Nomad Network, you will need a terminal that supports UTF-8 and at least 256 colors, ideally true-color. If your terminal supports true-color, you can go to the `![ Config ]`! menu item, launch the editor and change the configuration.
+
+It is recommended to use a terminal size of at least 122x32. Nomad Network will work with smaller terminal sizes, but the interface might feel a bit cramped.
+
+If you don't already have a Nerd Font installed (see https://www.nerdfonts.com/), I also highly recommend to do so, since it will greatly expand the amount of glyphs, icons and graphics that Nomad Network can use. Once you have your terminal set up with a Nerd Font, go to the `![ Config ]`! menu item and enable Nerd Fonts in the configuration instead of normal unicode glyphs.
+
+Nomad Network expects that you are already connected to some form of Reticulum network. That could be as simple as the default one that Reticulum auto-generates on your local ethernet/WiFi network, or something much more complex. This short guide won't go into any details on building networks, but you will find other entries in the guide that deal with network setup and configuration.
+
+At least, if Nomad Network launches, it means that it is connected to a running Reticulum instance, that should in turn be connected to `*something`*, which should get you started.
+
+For more some more information, you can also read the `*Introduction`* section of this guide.
+
+Now go out there and explore. This is still early days. See what you can find and create.
+
+>>>>>>>>>>>>>>>
+-\u223f
+<
+
+'''
+
+TOPIC_CONFIG = '''>Configuration Options
+
+To change the configuration of Nomad Network, you must edit the configuration file. If you did not manually specify a config path when you started the program, Nomad Net will look for a configuration in the folllowing directories:
+
+  `!/etc/nomadnetwork`!
+  `!~/.config/nomadnetwork`!
+  `!~/.nomadnetwork`!
+
+If no existing configuration file is found, one will be created at `!~/.nomadnetwork/config`! by default. The default configuration file contains comments on all the different configuration options present, and explains their possible settings.
+
+You can open the configuration file in any text-editor, and change the options. You can also use the editor built in to this program, under the `![ Config ]`! menu item. If the built-in editor does not gain focus, and your navigation keys are not working, try hitting enter or space, which should focus the editor and let you navigate the text.
+
+For reference, all the configuration options are listed and explained here as well. The configuration is divided into different sections, each with their own options.
+
+>> Logging Section
+
+This section hold configuration directives related to logging output, and is delimited by the `![logging]`! header in the configuration file. Available directives, along with their default values, are as follows:
+
+>>>
+`!loglevel = 4`!
+>>>>
+Sets the verbosity of the log output. Must be an integer from 0 through 7.
+>>>>>
+0: Log only critical information
+1: Log errors and lower log levels
+2: Log warnings and lower log levels
+3: Log notices and lower log levels
+4: Log info and lower (this is the default)
+5: Verbose logging
+6: Debug logging
+7: Extreme logging
+<
+
+>>>
+`!destination = file`!
+>>>>
+Determines the output destination of logged information. Must be `!file`! or `!console`!.
+<
+
+>>>
+`!logfile = ~/.nomadnetwork/logfile`!
+>>>>
+Path to the log file. Must be a writable filesystem path.
+<
+
+>> Client Section
+
+This section hold configuration directives related to the client behaviour and user interface of the program. It is delimited by the `![client]`! header in the configuration file. Available directives, along with their default values, are as follows:
+
+>>>
+`!enable_client = yes`!
+>>>>
+Determines whether the client part of the program should be started on launch. Must be a boolean value.
+<
+
+>>>
+`!user_interface = text`!
+>>>>
+Selects which interface to use. Currently, only the `!text`! interface is available.
+<
+
+>>>
+`!downloads_path = ~/Downloads`!
+>>>>
+Sets the filesystem path to store downloaded files in.
+<
+
+>>>
+`!announce_at_start = yes`!
+>>>>
+Determines whether your LXMF address is automatically announced when the program starts. Must be a boolean value.
+<
+
+>>>
+`!try_propagation_on_send_fail = yes`!
+>>>>
+When this option is enabled, and sending a message directly to a peer fails, Nomad Network will instead deliver the message to the propagation network, for later retrieval by the recipient.
+<
+
+>>>
+`!periodic_lxmf_sync = yes`!
+>>>>
+Whether the program should periodically download messages from available propagation nodes in the background.
+<
+
+>>>
+`!lxmf_sync_interval = 360`!
+>>>>
+The number of minutes between each automatic sync. The default is equal to 6 hours.
+<
+
+>>>
+`!lxmf_sync_limit = 8`!
+>>>>
+On low-bandwidth networks, it can be useful to limit the amount of messages downloaded in each sync. The default is 8. Set to 0 to download all available messages every time a sync occurs.
+<
+
+>> Text UI Section
+
+This section hold configuration directives related to the look and feel of the text-based user interface of the program. It is delimited by the `![textui]`! header in the configuration file. Available directives, along with their default values, are as follows:
+
+>>>
+`!intro_time = 1`!
+>>>>
+Number of seconds to display the intro screen. Set to 0 to disable the intro screen.
+<
+
+>>>
+`!intro_text = Nomad Network`!
+>>>>
+The text to display on the intro screen.
+<
+
+>>>
+`!editor = editor`!
+>>>>
+What editor program to use when launching a text editor from within the program. Defaults to the `!editor`! alias, which in turn will use the default editor of the operating system.
+<
+
+>>>
+`!glyphs = unicode`!
+>>>>
+Determines what set of glyphs the program uses for rendering the user interface.
+>>>>>
+The `!plain`! set only uses ASCII characters, and should work on all terminals, but is rather boring.
+The `!unicode`! set uses more interesting glyphs and icons, and should work on most terminals. This is the default.
+The `!nerdfont`! set allows using a much wider range of glyphs, icons and graphics, and should be enabled if you are using a Nerd Font in your terminal.
+<
+
+>>>
+`!mouse_enabled = yes`!
+>>>>
+Determines whether the program should react to mouse/touch input. Must be a boolean value.
+<
+
+>>>
+`!hide_guide = no`!
+>>>>
+This option allows hiding the `![ Guide ]`! section of the program.
+<
+
+>>>
+`!animation_interval = 1`!
+>>>>
+Sets the animation refresh rate for certain animations and graphics in the program. Must be an integer.
+<
+
+>>>
+`!colormode = 256`!
+>>>>
+Tells the program what color palette is supported by the terminal. Most terminals support `!256`! colors. If your terminal supports full-color / RGB-mode, set to `!24bit`!. Available options:
+>>>>>
+`!monochrome`! Single-color (black/white) palette, for monochrome displays
+`!16`! Low-color mode for really old-school terminals
+`!88`! Standard palletised color-mode for terminals
+`!256`! Almost all modern terminals support this mode
+`!24bit`! Most new terminals support this full-color mode
+<
+
+>>>
+`!theme = dark`!
+>>>>
+What color theme to use. Set it to match your terminal theme. Can be either `!dark`! or `!light`!.
+<
+
+>> Node Section
+
+This section holds configuration directives related to the node hosting. It is delimited by the `![node]`! header in the configuration file. Available directives, along with example values, are as follows:
+
+>>>
+`!enable_node = no`!
+>>>>
+Determines whether the node server should be started on launch. Must be a boolean value, and is turned off by default.
+<
+
+>>>
+`!node_name = DisplayName's Node`!
+>>>>
+Defines what the announced name of the node should be.
+<
+
+>>>
+`!announce_at_start = yes`!
+>>>>
+Determines whether your node is automatically announced on the network when the program starts. Must be a boolean value.
+<
+
+>>>
+`!announce_interval = 360`!
+>>>>
+Determines how often, in minutes, your node is announced on the network. Defaults to 6 hours.
+<
+
+>>>
+`!pages_path = ~/.nomadnetwork/storage/pages`!
+>>>>
+Determines where the node server will look for hosted pages. Must be a readable filesystem path.
+<
+
+>>>
+`!files_path = ~/.nomadnetwork/storage/files`!
+>>>>
+Determines where the node server will look for downloadable files. Must be a readable filesystem path.
+<
+
+>>>
+`!message_storage_limit = 2000`!
+>>>>
+Configures the maximum amount of storage, in megabytes, that the LXMF Propagation Node will use to store messages.
+<
+
+>>>
+`!prioritise_destinations = 41d20c727598a3fbbdf9106133a3a0ed, d924b81822ca24e68e2effea99bcb8cf`!
+>>>>
+Configures the LXMF Propagation Node to prioritise storing messages for certain destinations. If the message store reaches the specified limit, LXMF will prioritise keeping messages for destinations specified with this option. This setting is optional, and generally you do not need to use it.
+<
+
+>> Printing Section
+
+This section holds configuration directives related to printing. It is delimited by the `![printing]`! header in the configuration file. Available directives, along with example values, are as follows:
+
+>>>
+`!print_messages = no`!
+>>>>
+Determines whether messages should be printed upon arrival. Must be a boolean value, and is turned off by default.
+<
+
+>>>
+`!message_template = ~/.nomadnetwork/print_template_msg.txt`!
+>>>>
+Determines where the template for printed messages is found. Must be a filesystem path. If you set this path to a non-existing file, an example will be generated in the specified location.
+<
+
+>>>
+`!print_from = 76fe5751a56067d1e84eef3e88eab85b, trusted`!
+>>>>
+Determines from which destinations messages are printed. Can be a list of destinations hashes, the keyword "trusted", or "everywhere".
+<
+
+>>>
+`!print_command = lp -d PRINTER_NAME -o cpi=16 -o lpi=8`!
+>>>>
+Specifies the command that Nomad Network uses to print the message. Defaults to "lp". The above example works well for small thermal-roll printers.
+<
+
+>Ignoring Destinations
+
+If you encounter peers or nodes on the network, that you would rather not see in your client, you can add them to the `!~/.nomadnetwork/ignored`! file. To ignore nodes or peers, add one 32-character hexadecimal destination hash per line to the file. To unignore one again, simply remove the corresponding entry from the file and restart Nomad Network.
+'''
+
+TOPIC_NETWORKS = '''>Network Configuration
+
+Nomad Network uses the Reticulum Network Stack for communication and encryption. This means that it will use any interfaces and communications channels already defined in your Reticulum configuration.
+
+Reticulum supports using many kinds of devices as networking interfaces, and allows you to mix and match them in any way you choose. The number of distinct network topologies you can create with Reticulum is more or less endless, but common to them all is that you will need to define one or more interfaces for Reticulum to use.
+
+If you have not changed the default Reticulum configuration, which should be located at `!~/.reticulum/config`!, you will have one interface active right now. With it, you should be able to communicate with any other peers and systems that exist on your local ethernet or WiFi network, if your computer is connected to one, and most probably nothing else outside of that.
+
+To learn how to configure your Reticulum setup to use LoRa radios, packet radio or other interfaces, or connect to other Reticulum networks via the Internet, the best places to start is to read the relevant parts of the Reticulum Manual, which can be found on GitHub:
+
+`c`_https://markqvist.github.io/Reticulum/manual/interfaces.html`_
+`l
+
+If you don't currently have access to the Internet, you can generate a configuration file full of examples of all the supported interface types, by using the command `!rnsd --exampleconfig`!. Using those examples, it should be possible to get a working setup going.
+
+For future reference, you can download the Reticulum Manual in PDF format here:
+
+`c`_https://github.com/markqvist/Reticulum/raw/master/docs/Reticulum%20Manual.pdf`_
+`l
+
+It might be nice to keep that handy when you are not connected to the Internet, as it is full of information and examples that are also very relevant to Nomad Network.
+
+>The Reticulum Testnet
+
+If you have Internet access, and just want to get started experimenting, you are welcome to join the Unsigned.io RNS Testnet. The testnet is just that, an informal network for testing and experimenting. It will be up most of the time, and anyone can join, but it also means that there's no guarantees for service availability.
+
+The Testnet also runs the latest version of Reticulum, often even a short while before it is publicly released, which means strange behaviour might occur. If none of that scares you, add the following interface to your Reticulum configuration file to join:
+
+>>
+[[RNS Testnet Zurich]]
+  type = TCPClientInterface
+  interface_enabled = yes
+  outgoing = True
+  target_host = zurich.connect.reticulum.network
+  target_port = 4242
+<
+
+If you connect to the testnet, you can leave nomadnet running for a while and wait for it to receive announces from other nodes on the network that host pages or services, or you can try connecting directly to some nodes listed here:
+
+ - Dublin Hub Testnet Node    : `!`[abb3ebcd03cb2388a838e70c001291f9]`!
+ - Frankfurt Hub Testnet Node : `!`[ea6a715f814bdc37e56f80c34da6ad51]`!
+
+To browse pages on a node that is not currently known, open the URL dialog in the `![ Network ]`! section of the program by pressing `!Ctrl+U`!, paste or enter the address and select `!< Go >`! or press enter. Nomadnet will attempt to discover and connect to the requested node. You can save the currently connected node by pressing `!Ctrl+S`!.
+'''
+
+TOPIC_DISPLAYTEST = '''>Markup & Color Display Test
+
+
+`cYou can use this section to gauge how well your terminal reproduces the various types of formatting used by Nomad Network.
+``
+
+
+>>>>>>>>>>>>>>>>>>>>
+-\u223f
+<
+
+
+>>
+`a`!This line should be bold, and aligned to the left`!
+
+`c`*This one should be italic and centered`*
+
+`r`_And this one should be underlined, aligned right`_
+``
+
+The following line should contain a red gradient bar:
+`B100 `B200 `B300 `B400 `B500 `B600 `B700 `B800 `B900 `Ba00 `Bb00 `Bc00 `Bd00 `Be00 `Bf00`b
+
+The following line should contain a green gradient bar:
+`B010 `B020 `B030 `B040 `B050 `B060 `B070 `B080 `B090 `B0a0 `B0b0 `B0c0 `B0d0 `B0e0 `B0f0`b
+
+The following line should contain a blue gradient bar:
+`B001 `B002 `B003 `B004 `B005 `B006 `B007 `B008 `B009 `B00a `B00b `B00c `B00d `B00e `B00f`b
+
+The following line should contain a grayscale gradient bar:
+`Bg06 `Bg13 `Bg20 `Bg26 `Bg33 `Bg40 `Bg46 `Bg53 `Bg59 `Bg66 `Bg73 `Bg79 `Bg86 `Bg92 `Bg99`b
+
+Unicode Glyphs   : \u2713  \u2715  \u26a0  \u24c3  \u2193
+
+Nerd Font Glyphs : \uf484  \uf9c4 \uf719  \uf502  \uf415  \uf023  \uf06e
+'''
+
+
+TOPIC_LICENSES = '''>Thanks, Acknowledgements and Licenses
+
+This program uses various other software components, without which Nomad Network would not have been possible. Sincere thanks to the authors and contributors of the following projects
+
+>>>
+ - `!Cryptography.io`! by `*pyca`*
+   https://cryptography.io/
+   BSD License
+
+ - `!Urwid`! by `*Ian Ward`*
+   http://urwid.org/
+   LGPL-2.1 License
+
+ - `!Additional Urwid Widgets`! by `*AFoeee`*
+   https://github.com/AFoeee/additional_urwid_widgets
+   MIT License
+
+ - `!Scrollable`! by `*rndusr`*
+   https://github.com/rndusr/stig/blob/master/stig/tui/scroll.py
+   GPLv3 License
+
+ - `!Configobj`! by `*Michael Foord`*
+   https://github.com/DiffSK/configobj
+   BSD License
+
+ - `!Reticulum Network Stack`! by `*unsignedmark`*
+   https://github.com/markqvist/Reticulum
+   MIT License
+
+ - `!LXMF`! by `*unsignedmark`*
+   https://github.com/markqvist/LXMF
+   MIT License
+'''
+
+
 TOPIC_MARKUP = '''>Outputting Formatted Text
 
 
@@ -226,7 +803,7 @@ While micron can output formatted text to even the most basic terminal, there's
 
 Formatting such as `_underline`_, `!bold`! or `*italics`* will be displayed if your terminal supports it.
 
-If you are having trouble getting micron output to display correctly, try using `*gnome-terminal`*, which should work with all formatting options out of the box. Most other terminals will work fine as well, but you might have to change some settings to get certain formatting to display correctly.
+If you are having trouble getting micron output to display correctly, try using `*gnome-terminal`* or `*alacritty`*, which should work with all formatting options out of the box. Most other terminals will work fine as well, but you might have to change some settings to get certain formatting to display correctly.
 
 >>>Encoding
 
@@ -398,6 +975,147 @@ You can use `B5d5`F222 color `f`B333 `Ff00f`Ff80o`Ffd0r`F9f0m`F0f2a`F0fdt`F07ft`
 ``
 
 
+>Links
+
+Links to pages, files or other resources can be created with the \\`[ tag, which should always be terminated with a closing ]. You can create links with and without labels, it is up to you to control the formatting of links with other tags. Although not strictly necessary, it is good practice to at least format links with underlining.
+
+Here's a few examples:
+
+`Faaa
+`=
+Here is a link without any label: `[72914442a3689add83a09a767963f57c:/page/index.mu]
+
+This is a `[labeled link`72914442a3689add83a09a767963f57c:/page/index.mu] to the same page, but it's hard to see if you don't know it
+
+Here is `F00a`_`[a more visible link`72914442a3689add83a09a767963f57c:/page/index.mu]`_`f
+`=
+``
+
+The above markup produces the following output:
+
+`Faaa`B333
+
+Here is a link without any label: `[72914442a3689add83a09a767963f57c:/page/index.mu]
+
+This is a `[labeled link`72914442a3689add83a09a767963f57c:/page/index.mu] to the same page, but it's hard to see if you don't know it
+
+Here is `F00f`_`[a more visible link`72914442a3689add83a09a767963f57c:/page/index.mu]`_`f
+
+``
+
+When links like these are displayed in the built-in browser, clicking on them or activating them using the keyboard will cause the browser to load the specified URL.
+
+>Fields & Requests
+
+Nomad Network let's you use simple input fields for submitting data to node-side applications. Submitted data, along with other session variables will be available to the node-side script / program as environment variables.
+
+>>Request Links
+
+Links can contain request variables and a list of fields to submit to the node-side application. You can include all fields on the page, only specific ones, and any number of request variables. To simply submit all fields on a page to a specified node-side page, create a link like this:
+
+`Faaa
+`=
+`[Submit Fields`:/page/fields.mu`*]
+`=
+``
+
+Note the `!*`! following the extra `!\``! at the end of the path. This `!*`! denotes `*all fields`*. You can also specify a list of fields to include:
+
+`Faaa
+`=
+`[Submit Fields`:/page/fields.mu`username|auth_token]
+`=
+``
+
+If you want to include pre-set variables, you can do it like this:
+
+`Faaa
+`=
+`[Query the System`:/page/fields.mu`username|auth_token|action=view|amount=64]
+`=
+``
+
+>> Fields
+
+Here's an example of creating a field. We'll create a field named `!user_input`! and fill it with the text `!Pre-defined data`!. Note that we are using background color tags to make the field more visible to the user:
+
+`Faaa
+`=
+A simple input field: `B444`<user_input`Pre-defined data>`b
+`=
+``
+
+You must always set a field `*name`*, but you can of course omit the pre-defined value of the field:
+
+`Faaa
+`=
+An empty input field: `B444`<demo_empty`>`b
+`=
+``
+
+You can set the size of the field like this:
+
+`Faaa
+`=
+A sized input field:  `B444`<16|with_size`>`b
+`=
+``
+
+It is possible to mask fields, for example for use with passwords and similar:
+
+`Faaa
+`=
+A masked input field: `B444`<!|masked_demo`hidden text>`b
+`=
+``
+
+And you can of course control all parameters at the same time:
+
+`Faaa
+`=
+Full control: `B444`<!32|all_options`hidden text>`b
+`=
+``
+
+Collecting the above markup produces the following output:
+
+`Faaa`B333
+
+A simple input field: `B444`<user_input`Pre-defined data>`B333
+
+An empty input field: `B444`<demo_empty`>`B333
+
+A sized input field:  `B444`<16|with_size`>`B333
+
+A masked input field: `B444`<!|masked_demo`hidden text>`B333
+
+Full control: `B444`<!32|all_options`hidden text>`B333
+
+``
+
+>Comments
+
+You can insert comments that will not be displayed in the output by starting a line with the # character.
+
+Here's an example:
+
+`Faaa
+`=
+# This line will not be displayed
+This line will
+`=
+``
+
+The above markup produces the following output:
+
+`Faaa`B333
+
+# This line will not be displayed
+This line will
+
+``
+
+
 >Literals
 
 To display literal content, for example source-code, or blocks of text that should not be interpreted by micron, you can use literal blocks, specified by the \\`= tag. Below is the source code of this entire document, presented as a literal block.
@@ -407,72 +1125,19 @@ To display literal content, for example source-code, or blocks of text that shou
 `=
 '''
 TOPIC_MARKUP += TOPIC_MARKUP.replace("`=", "\\`=") + "[ micron source for document goes here, we don't want infinite recursion now, do we? ]\n\\`="
-TOPIC_MARKUP += "\n`=\n\n>Closing Remarks\n\nIf you made it all the way here, you should be well equipped to write documents and pages using micron. Thank you for staying with me.\n\n`c\U0001F332\n"
+TOPIC_MARKUP += "\n`=\n\n>Closing Remarks\n\nIf you made it all the way here, you should be well equipped to write documents, pages and applications using micron and Nomad Network. Thank you for staying with me.\n\n`c\U0001F332\n"
 
-TOPIC_FIRST_RUN = '''>First Time Information
-
-Hi there. This first run message will only appear once. It contains a few pointers on getting started with Nomad Network, and getting the most out of the program.
-
-You're currently located in the guide section of the program. I'm sorry I had to drag you here by force, but it will only happen this one time, I promise. If you ever get lost, return here and peruse the list of topics you see on the left. I will do my best to fill it with answers to mostly anything about Nomad Network.
-
-To get the most out of Nomad Network, you will need a terminal that supports UTF-8 and at least 256 colors, ideally true-color.
-
-By default, Nomad Network starts in low-color mode. It does this for the sake of compatibility, but it does look rather ugly. If your terminal supports true-color or just 256 colors, you should go to the `![ Config ]`! menu item, launch the editor and change the configuration to use a high-color mode.
-
-If you don't already have a Nerd Font installed (see https://www.nerdfonts.com/), I also highly recommend to do so, since it will greatly expand the amount of glyphs, icons and graphics that Nomad Network can use.
-
-Nomad Network expects that you are already connected to some form of Reticulum network. That could be as simple as the default UDP-based demo interface on your local ethernet network. This short guide won't go into any details on building, but you will find other entries in the guide that deal with network setup and configuration.
-
-At least, if Nomad Network launches, it means that it is connected to a running Reticulum instance, that should in turn be connected to `*something`*, which should get you started.
-
-For more some more information, you can also read the `*Introduction`* section of this guide.
-
-Now go out there and explore. This is still early days. See what you can find and create.
-
->>>>>>>>>>>>>>>
--\u223f
-<
-
-'''
-
-TOPIC_LICENSES = '''>Thanks, Acknowledgements and Licenses
-
-This program uses various other software components, without which Nomad Network would not have been possible. Sincere thanks to the authors and contributors of the following projects
-
->>>
- - `!Cryptography.io`! by `*pyca`*
-   https://cryptography.io/
-   BSD License
-
- - `!Urwid`! by `*Ian Ward`*
-   http://urwid.org/
-   LGPL-2.1 License
-
- - `!Additional Urwid Widgets`! by `*AFoeee`*
-   https://github.com/AFoeee/additional_urwid_widgets
-   MIT License
-
- - `!Scrollable`! by `*rndusr`*
-   https://github.com/rndusr/stig/blob/master/stig/tui/scroll.py
-   GPLv3 License
-
- - `!Configobj`! by `*Michael Foord`*
-   https://github.com/DiffSK/configobj
-   BSD License
-
- - `!Reticulum Network Stack`! by `*unsignedmark`*
-   https://github.com/markqvist/Reticulum
-   MIT License
-
- - `!LXMF`! by `*unsignedmark`*
-   https://github.com/markqvist/LXMF
-   MIT License
-'''
 
 TOPICS = {
     "Introduction": TOPIC_INTRODUCTION,
+    "Concepts & Terminology": TOPIC_CONCEPTS,
     "Conversations": TOPIC_CONVERSATIONS,
+    "Hosting a Node": TOPIC_HOSTING,
+    "Configuration Options": TOPIC_CONFIG,
+    "Keyboard Shortcuts": TOPIC_SHORTCUTS,
     "Markup": TOPIC_MARKUP,
-    "First Run": TOPIC_FIRST_RUN,
+    "Display Test": TOPIC_DISPLAYTEST,
+    "Network Configuration": TOPIC_NETWORKS,
     "Credits & Licenses": TOPIC_LICENSES,
+    "First Run": TOPIC_FIRST_RUN,
 }

nomadnet/ui/textui/Main.py

@@ -21,7 +21,10 @@ class SubDisplays():
         self.log_display = LogDisplay(self.app)
         self.guide_display = GuideDisplay(self.app)
 
-        self.active_display = self.conversations_display
+        if app.firstrun:
+            self.active_display = self.guide_display
+        else:
+            self.active_display = self.conversations_display
 
     def active(self):
         return self.active_display
@@ -126,13 +129,26 @@ class MainDisplay():
     def update_active_shortcuts(self):
         self.frame.contents["footer"] = (self.sub_displays.active().shortcuts().widget, None)
 
-    def request_redraw(self):
-        self.app.ui.loop.set_alarm_in(0.25, self.redraw_now)
+    def request_redraw(self, extra_delay=0.0):
+        self.app.ui.loop.set_alarm_in(0.25+extra_delay, self.redraw_now)
     
     def redraw_now(self, sender=None, data=None):
-        self.app.ui.loop.draw_screen()
+        self.app.ui.loop.screen.clear()
+        #self.app.ui.loop.draw_screen()
+
+    def start(self):
+        self.menu_display.start()
 
     def quit(self, sender=None):
+        logterm_pid = None
+        if True or RNS.vendor.platformutils.is_android():
+            if self.sub_displays.log_display != None and self.sub_displays.log_display.log_term != None:
+                if self.sub_displays.log_display.log_term.log_term != None:
+                    logterm_pid = self.sub_displays.log_display.log_term.log_term.pid
+                    if logterm_pid != None:
+                        import os, signal
+                        os.kill(logterm_pid, signal.SIGKILL)
+
         raise urwid.ExitMainLoop
 
 
@@ -144,11 +160,16 @@ class MenuColumns(urwid.Columns):
         return super(MenuColumns, self).keypress(size, key)
 
 class MenuDisplay():
+    UPDATE_INTERVAL = 2
+
     def __init__(self, app, handler):
         self.app = app
-        g = self.app.ui.glyphs
+        self.update_interval = MenuDisplay.UPDATE_INTERVAL
+        self.g = self.app.ui.glyphs
 
-        menu_text            = ("pack", urwid.Text(g["decoration_menu"]))
+        self.menu_indicator  = urwid.Text("")
+
+        menu_text            = ("pack", self.menu_indicator)
         button_network       = (11, MenuButton("Network", on_press=handler.show_network))
         button_conversations = (17, MenuButton("Conversations", on_press=handler.show_conversations))
         button_directory     = (13, MenuButton("Directory", on_press=handler.show_directory))
@@ -167,4 +188,25 @@ class MenuDisplay():
         columns = MenuColumns(buttons, dividechars=1)
         columns.handler = handler
 
+        self.update_display()
+
         self.widget = urwid.AttrMap(columns, "menubar")
+
+    def start(self):
+        self.update_display_job()
+
+    def update_display_job(self, event = None, sender = None):
+        self.update_display()
+        self.app.ui.loop.set_alarm_in(self.update_interval, self.update_display_job)
+
+    def update_display(self):
+        if self.app.has_unread_conversations():
+            self.indicate_unread()
+        else:
+            self.indicate_normal()
+
+    def indicate_normal(self):
+        self.menu_indicator.set_text(self.g["decoration_menu"])
+
+    def indicate_unread(self):
+        self.menu_indicator.set_text(self.g["unread_menu"])

nomadnet/ui/textui/MicronParser.py

@@ -1,20 +1,31 @@
 import nomadnet
 import urwid
+import random
 import time
 from urwid.util import is_mouse_press
 from urwid.text_layout import calc_coords
 import re
 
-DEFAULT_FG = "ddd"
+DEFAULT_FG_DARK  = "ddd"
+DEFAULT_FG_LIGHT = "222"
 DEFAULT_BG = "default"
 
-STYLES = {
-    "plain":    { "fg": DEFAULT_FG, "bg": DEFAULT_BG, "bold": False, "underline": False, "italic": False },
+SELECTED_STYLES = None
+
+STYLES_DARK = {
+    "plain":    { "fg": DEFAULT_FG_DARK, "bg": DEFAULT_BG, "bold": False, "underline": False, "italic": False },
     "heading1": { "fg": "222", "bg": "bbb", "bold": False, "underline": False, "italic": False },
     "heading2": { "fg": "111", "bg": "999", "bold": False, "underline": False, "italic": False },
     "heading3": { "fg": "000", "bg": "777", "bold": False, "underline": False, "italic": False },
 }
 
+STYLES_LIGHT = {
+    "plain":    { "fg": DEFAULT_FG_LIGHT, "bg": DEFAULT_BG, "bold": False, "underline": False, "italic": False },
+    "heading1": { "fg": "000", "bg": "777", "bold": False, "underline": False, "italic": False },
+    "heading2": { "fg": "111", "bg": "aaa", "bold": False, "underline": False, "italic": False },
+    "heading3": { "fg": "222", "bg": "ccc", "bold": False, "underline": False, "italic": False },
+}
+
 SYNTH_STYLES = []
 SYNTH_SPECS  = {}
 
@@ -22,12 +33,18 @@ SECTION_INDENT = 2
 INDENT_RIGHT   = 1
 
 def markup_to_attrmaps(markup, url_delegate = None):
+    global SELECTED_STYLES
+    if nomadnet.NomadNetworkApp.get_shared_instance().config["textui"]["theme"] == nomadnet.ui.TextUI.THEME_DARK:
+        SELECTED_STYLES = STYLES_DARK
+    else:
+        SELECTED_STYLES = STYLES_LIGHT
+
     attrmaps = []
 
     state = {
         "literal": False,
         "depth": 0,
-        "fg_color": DEFAULT_FG,
+        "fg_color": SELECTED_STYLES["plain"]["fg"],
         "bg_color": DEFAULT_BG,
         "formatting": {
             "bold": False,
@@ -46,13 +63,14 @@ def markup_to_attrmaps(markup, url_delegate = None):
 
     for line in lines:
         if len(line) > 0:
-            display_widget = parse_line(line, state, url_delegate)
+            display_widgets = parse_line(line, state, url_delegate)
         else:
-            display_widget = urwid.Text("")
+            display_widgets = [urwid.Text("")]
         
-        if display_widget != None:
-            attrmap = urwid.AttrMap(display_widget, make_style(state))
-            attrmaps.append(attrmap)
+        if display_widgets != None and len(display_widgets) != 0:
+            for display_widget in display_widgets:
+                attrmap = urwid.AttrMap(display_widget, make_style(state))
+                attrmaps.append(attrmap)
 
     return attrmaps
 
@@ -72,6 +90,10 @@ def parse_line(line, state, url_delegate):
             if first_char == "\\":
                 line = line[1:]
 
+            # Check for comments
+            elif first_char == "#":
+                return None
+
             # Check for section heading reset
             elif first_char == "<":
                 state["depth"] = 0
@@ -86,8 +108,8 @@ def parse_line(line, state, url_delegate):
                 
                     for j in range(1, i+1):
                         wanted_style = "heading"+str(i)
-                        if wanted_style in STYLES:
-                            style = STYLES[wanted_style]
+                        if wanted_style in SELECTED_STYLES:
+                            style = SELECTED_STYLES[wanted_style]
 
                 line = line[state["depth"]:]
                 if len(line) > 0:
@@ -104,7 +126,7 @@ def parse_line(line, state, url_delegate):
 
                         heading_style = first_style
                         output.insert(0, " "*left_indent(state))
-                        return urwid.AttrMap(urwid.Text(output, align=state["align"]), heading_style)
+                        return [urwid.AttrMap(urwid.Text(output, align=state["align"]), heading_style)]
                     else:
                         return None
                 else:
@@ -117,22 +139,56 @@ def parse_line(line, state, url_delegate):
                 else:
                     divider_char = "\u2500"
                 if state["depth"] == 0:
-                    return urwid.Divider(divider_char)
+                    return [urwid.Divider(divider_char)]
                 else:
-                    return urwid.Padding(urwid.Divider(divider_char), left=left_indent(state), right=right_indent(state))
+                    return [urwid.Padding(urwid.Divider(divider_char), left=left_indent(state), right=right_indent(state))]
 
         output = make_output(state, line, url_delegate)
 
         if output != None:
-            if url_delegate != None:
-                text_widget = LinkableText(output, align=state["align"], delegate=url_delegate)
+            text_only = True
+            for o in output:
+                if not isinstance(o, tuple):
+                    text_only = False
+                    break
+
+            if not text_only:
+                widgets = []
+                for o in output:
+                    if isinstance(o, tuple):
+                        if url_delegate != None:
+                            tw = LinkableText(o, align=state["align"], delegate=url_delegate)
+                            tw.in_columns = True
+                        else:
+                            tw = urwid.Text(o, align=state["align"])
+                        
+                        widgets.append(("pack", tw))
+                    else:
+                        if o["type"] == "field":
+                            fw = o["width"]
+                            fd = o["data"]
+                            fn = o["name"]
+                            fs = o["style"]
+                            fmask = "*" if o["masked"] else None
+                            f = urwid.Edit(caption="", edit_text=fd, align=state["align"], multiline=True, mask=fmask)
+                            f.field_name = fn
+                            fa = urwid.AttrMap(f, fs)
+                            widgets.append((fw, fa))
+
+                columns_widget = urwid.Columns(widgets, dividechars=0)
+                text_widget = columns_widget
+                # text_widget = urwid.Text("<"+output+">", align=state["align"])
+
             else:
-                text_widget = urwid.Text(output, align=state["align"])
+                if url_delegate != None:
+                    text_widget = LinkableText(output, align=state["align"], delegate=url_delegate)
+                else:
+                    text_widget = urwid.Text(output, align=state["align"])
 
             if state["depth"] == 0:
-                return text_widget
+                return [text_widget]
             else:
-                return urwid.Padding(text_widget, left=left_indent(state), right=right_indent(state))
+                return [urwid.Padding(text_widget, left=left_indent(state), right=right_indent(state))]
         else:
             return None
     else:
@@ -165,14 +221,155 @@ def style_to_state(style, state):
 def make_style(state):
     def mono_color(fg, bg):
         return "default"
+
     def low_color(color):
-        # TODO: Implement low-color mapper
-        return "default"
+        try:
+            result = "default"
+            if color == "default":
+                result = "default"
+
+            elif len(color) == 6:
+                r = str(color[0])
+                g = str(color[2])
+                b = str(color[4])
+                color = r+g+b
+
+            if len(color) == 3:
+                t = 7
+
+                if color[0] == "g":
+                    val = int(color[1:2])
+                    if val < 25:
+                        result = "black"
+                    elif val < 50:
+                        result = "dark gray"
+                    elif val < 75:
+                        result = "light gray"
+                    else:
+                        result = "white"
+                else:
+                    r = int(color[0], 16)
+                    g = int(color[1], 16)
+                    b = int(color[2], 16)
+
+                    if r == g == b:
+                        val = int(color[0], 16)*6
+                        if val < 12:
+                            result = "black"
+                        elif val < 50:
+                            result = "dark gray"
+                        elif val < 80:
+                            result = "light gray"
+                        else:
+                            result = "white"
+
+                    else:
+                        if r == b:
+                            if r > g:
+                                if r > t:
+                                    result = "light magenta"
+                                else:
+                                    result = "dark magenta"
+                            else:
+                                if g > t:
+                                    result = "light green"
+                                else:
+                                    result = "dark green"
+                        if b == g:
+                            if b > r:
+                                if b > t:
+                                    result = "light cyan"
+                                else:
+                                    result = "dark cyan"
+                            else:
+                                if r > t:
+                                    result = "light red"
+                                else:
+                                    result = "dark red"
+                        if g == r:
+                            if g > b:
+                                if g > t:
+                                    result = "yellow"
+                                else:
+                                    result = "brown"
+                            else:
+                                if b > t:
+                                    result = "light blue"
+                                else:
+                                    result = "dark blue"
+
+                        if r > g and r > b:
+                            if r > t:
+                                result = "light red"
+                            else:
+                                result = "dark red"
+                        if g > r and g > b:
+                            if g > t:
+                                result = "light green"
+                            else:
+                                result = "dark green"
+                        if b > g and b > r:
+                            if b > t:
+                                result = "light blue"
+                            else:
+                                result = "dark blue"
+
+        except Exception as e:
+            result = "default"
+
+        return result
+
     def high_color(color):
+        def parseval_hex(char):
+            return hex(max(0,min(int(char, 16),16)))[2:]
+
+        def parseval_dec(char):
+            return str(max(0,min(int(char), 9)))
+
         if color == "default":
-            return color
+            return "default"
         else:
-            return "#"+color
+            if len(color) == 6:
+                try:
+                    v1 = parseval_hex(color[0])
+                    v2 = parseval_hex(color[1])
+                    v3 = parseval_hex(color[2])
+                    v4 = parseval_hex(color[3])
+                    v5 = parseval_hex(color[4])
+                    v6 = parseval_hex(color[5])
+                    color = "#"+v1+v2+v3+v4+v5+v6
+
+                except Exception as e:
+                    return "default"
+
+                return color
+
+            elif len(color) == 3:
+                if color[0] == "g":
+                    try:
+                        v1 = parseval_dec(color[1])
+                        v2 = parseval_dec(color[2])
+
+                    except Exception as e:
+                        return "default"
+
+                    return "g"+v1+v2
+                
+                else:
+                    try:
+                        v1 = parseval_hex(color[0])
+                        v2 = parseval_hex(color[1])
+                        v3 = parseval_hex(color[2])
+                        color = v1+v2+v3
+                        
+                    except Exception as e:
+                        return "default"
+
+                    r = color[0]
+                    g = color[1]
+                    b = color[2]
+                    return "#"+r+r+g+g+b+b
+
 
     bold      = state["formatting"]["bold"]
     underline = state["formatting"]["underline"]
@@ -229,7 +426,7 @@ def make_output(state, line, url_delegate):
                             state["fg_color"] = color
                             skip = 3
                     elif c == "f":
-                        state["fg_color"] = DEFAULT_FG
+                        state["fg_color"] = SELECTED_STYLES["plain"]["fg"]
                     elif c == "B":
                         if len(line) >= i+4:
                             color = line[i+1:i+4]
@@ -241,7 +438,7 @@ def make_output(state, line, url_delegate):
                         state["formatting"]["bold"]      = False 
                         state["formatting"]["underline"] = False
                         state["formatting"]["italic"]    = False
-                        state["fg_color"] = DEFAULT_FG
+                        state["fg_color"] = SELECTED_STYLES["plain"]["fg"]
                         state["bg_color"] = DEFAULT_BG
                         state["align"] = state["default_align"]
                     elif c == "c":
@@ -262,6 +459,54 @@ def make_output(state, line, url_delegate):
                     elif c == "a":
                         state["align"] = state["default_align"]
 
+                    elif c == "<":
+                        try:
+                            field_name = None
+                            field_name_end = line[i:].find("`")
+                            if field_name_end == -1:
+                                pass
+                            else:
+                                field_name = line[i+1:i+field_name_end]
+                                field_name_skip = len(field_name)
+                                field_masked = False
+                                field_width = 24
+
+                                if "|" in field_name:
+                                    f_components = field_name.split("|")
+                                    field_flags = f_components[0]
+                                    field_name = f_components[1]
+                                    if "!" in field_flags:
+                                        field_flags = field_flags.replace("!", "")
+                                        field_masked = True
+                                    if len(field_flags) > 0:
+                                        field_width = min(int(field_flags), 256)
+
+                                def sr():
+                                    return "@{"+str(random.randint(1000,9999))+"}"
+                                rsg = sr()
+                                while rsg in line[i+field_name_end:]:
+                                    rsg = sr()
+                                lr = line[i+field_name_end:].replace("\\>", rsg)
+                                endpos = lr.find(">")
+                                
+                                if endpos == -1:
+                                    pass
+                                
+                                else:
+                                    field_data = lr[1:endpos].replace(rsg, "\\>")
+                                    skip = len(field_data)+field_name_skip+2
+                                    field_data = field_data.replace("\\>", ">")
+                                    output.append({
+                                        "type":"field",
+                                        "name": field_name,
+                                        "width": field_width,
+                                        "masked": field_masked,
+                                        "data": field_data,
+                                        "style": make_style(state)
+                                    })
+                        except Exception as e:
+                            pass
+    
                     elif c == "[":
                         endpos = line[i:].find("]")
                         if endpos == -1:
@@ -273,13 +518,20 @@ def make_output(state, line, url_delegate):
                             link_components = link_data.split("`")
                             if len(link_components) == 1:
                                 link_label = ""
+                                link_fields = ""
                                 link_url = link_data
                             elif len(link_components) == 2:
                                 link_label = link_components[0]
                                 link_url = link_components[1]
+                                link_fields = ""
+                            elif len(link_components) == 3:
+                                link_label = link_components[0]
+                                link_url = link_components[1]
+                                link_fields = link_components[2]
                             else:
                                 link_url = ""
                                 link_label = ""
+                                link_fields = ""
 
                             if len(link_url) != 0:
                                 if link_label == "":
@@ -307,6 +559,11 @@ def make_output(state, line, url_delegate):
 
                                 if url_delegate != None:
                                     linkspec = LinkSpec(link_url, orig_spec)
+                                    if link_fields != "":
+                                        lf = link_fields.split("|")
+                                        if len(lf) > 0:
+                                            linkspec.link_fields = lf
+
                                     output.append((linkspec, link_label))
                                 else:
                                     output.append(make_part(state, link_label)) 
@@ -319,7 +576,11 @@ def make_output(state, line, url_delegate):
 
                 elif mode == "text":
                     if c == "\\":
-                        escape = True
+                        if escape:
+                            part += c
+                            escape = False
+                        else:
+                            escape = True
                     elif c == "`":
                         if escape:
                             part += c
@@ -345,6 +606,7 @@ def make_output(state, line, url_delegate):
 class LinkSpec(urwid.AttrSpec):
     def __init__(self, link_target, orig_spec):
         self.link_target = link_target
+        self.link_fields = None
 
         urwid.AttrSpec.__init__(self, orig_spec.foreground, orig_spec.background)
 
@@ -360,13 +622,13 @@ class LinkableText(urwid.Text):
         self.delegate = delegate
         self._cursor_position = 0
         self.key_timeout = 3
+        self.in_columns = False
         if self.delegate != None:
             self.delegate.last_keypress = 0
 
-    def handle_link(self, link_target):
+    def handle_link(self, link_target, link_fields):
         if self.delegate != None:
-            self.delegate.handle_link(link_target)
-
+            self.delegate.handle_link(link_target, link_fields)
 
     def find_next_part_pos(self, pos, part_positions):
         for position in part_positions:
@@ -393,6 +655,17 @@ class LinkableText(urwid.Text):
 
         return None
 
+    def peek_link(self):
+        item = self.find_item_at_pos(self._cursor_position)
+        if item != None:
+            if isinstance(item, LinkSpec):
+                if self.delegate != None:
+                    self.delegate.marked_link(item.link_target)
+            else:
+                if self.delegate != None:
+                    self.delegate.marked_link(None)
+
+
     def keypress(self, size, key):
         part_positions = [0]
         parts = []
@@ -413,7 +686,7 @@ class LinkableText(urwid.Text):
             item = self.find_item_at_pos(self._cursor_position)
             if item != None:
                 if isinstance(item, LinkSpec):
-                    self.handle_link(item.link_target)
+                    self.handle_link(item.link_target, item.link_fields)
 
         elif key == "up":
             self._cursor_position = 0
@@ -424,13 +697,25 @@ class LinkableText(urwid.Text):
             return key
         
         elif key == "right":
+            old = self._cursor_position
             self._cursor_position = self.find_next_part_pos(self._cursor_position, part_positions)
+
+            if self._cursor_position == old:
+                if self.in_columns:
+                    return "right"
+                else:
+                    self._cursor_position = 0
+                    return "down"
+
             self._invalidate()
         
         elif key == "left":
             if self._cursor_position > 0:
-                self._cursor_position = self.find_prev_part_pos(self._cursor_position, part_positions)
-                self._invalidate()
+                if self.in_columns:
+                    return "left"
+                else:
+                    self._cursor_position = self.find_prev_part_pos(self._cursor_position, part_positions)
+                    self._invalidate()
 
             else:
                 if self.delegate != None:
@@ -449,6 +734,9 @@ class LinkableText(urwid.Text):
         if focus and (self.delegate == None or now < self.delegate.last_keypress+self.key_timeout):
             c = urwid.CompositeCanvas(c)
             c.cursor = self.get_cursor_coords(size)
+            if self.delegate != None:
+                self.peek_link()
+
         return c
 
     def get_cursor_coords(self, size):
@@ -466,12 +754,36 @@ class LinkableText(urwid.Text):
         if button != 1 or not is_mouse_press(event):
             return False
         else:
-            pos = (y * size[0]) + x
+            (maxcol,) = size
+            translation = self.get_line_translation(maxcol)
+            line_offset = 0
+
+            if self.align == "center":
+                line_offset = translation[y][1][1]-translation[y][0][0]
+                if x < translation[y][0][0]:
+                    x = translation[y][0][0]
+
+                if x > translation[y][1][0]+translation[y][0][0]:
+                    x = translation[y][1][0]+translation[y][0][0]
+
+            elif self.align == "right":
+                line_offset = translation[y][1][1]-translation[y][0][0]
+                if x < translation[y][0][0]:
+                    x = translation[y][0][0]
+
+            else:
+                line_offset = translation[y][0][1]
+                if x > translation[y][0][0]:
+                    x = translation[y][0][0]
+
+            pos = line_offset+x
+
             self._cursor_position = pos
             item = self.find_item_at_pos(self._cursor_position)
+
             if item != None:
                 if isinstance(item, LinkSpec):
-                    self.handle_link(item.link_target)
+                    self.handle_link(item.link_target, item.link_fields)
 
             self._invalidate()
             self._emit("change")

nomadnet/vendor/Scrollable.py

@@ -31,7 +31,7 @@ class Scrollable(urwid.WidgetDecoration):
     def selectable(self):
         return True
 
-    def __init__(self, widget):
+    def __init__(self, widget, force_forward_keypress = False):
         """Box widget that makes a fixed or flow widget vertically scrollable
 
         TODO: Focusable widgets are handled, including switching focus, but
@@ -49,6 +49,7 @@ class Scrollable(urwid.WidgetDecoration):
         self._forward_keypress = None
         self._old_cursor_coords = None
         self._rows_max_cached = 0
+        self.force_forward_keypress = force_forward_keypress
         self.__super.__init__(widget)
 
     def render(self, size, focus=False):
@@ -106,6 +107,51 @@ class Scrollable(urwid.WidgetDecoration):
             if canv_full.cursor is not None:
                 # Full canvas contains the cursor, but scrolled out of view
                 self._forward_keypress = False
+                
+                # Reset cursor position on page/up down scrolling
+                try:
+                    if hasattr(ow, "automove_cursor_on_scroll") and ow.automove_cursor_on_scroll:
+                        pwi = 0
+                        ch = 0
+                        last_hidden = False
+                        first_visible = False
+                        for w,o in ow.contents:
+                            wcanv = w.render((maxcol,))
+                            wh = wcanv.rows()
+                            if wh:
+                                ch += wh
+
+                            if not last_hidden and ch >= self._trim_top:
+                                last_hidden = True
+
+                            elif last_hidden:
+                                if not first_visible:
+                                    first_visible = True
+
+                                if w.selectable():
+                                    ow.focus_item = pwi
+
+                                    st = None
+                                    nf = ow.get_focus()
+                                    if hasattr(nf, "key_timeout"):
+                                        st = nf
+                                    elif hasattr(nf, "original_widget"):
+                                        no = nf.original_widget
+                                        if hasattr(no, "original_widget"):
+                                            st = no.original_widget
+                                        else:
+                                            if hasattr(no, "key_timeout"):
+                                                st = no
+                                    
+                                    if st and hasattr(st, "key_timeout") and hasattr(st, "keypress") and callable(st.keypress):
+                                        st.keypress(None, None)
+                                    
+                                    break
+
+                            pwi += 1
+                except Exception as e:
+                    pass
+
             else:
                 # Original widget does not have a cursor, but may be selectable
 
@@ -127,7 +173,7 @@ class Scrollable(urwid.WidgetDecoration):
 
     def keypress(self, size, key):
         # Maybe offer key to original widget
-        if self._forward_keypress:
+        if self._forward_keypress or self.force_forward_keypress:
             ow = self._original_widget
             ow_size = self._get_original_widget_size(size)
 

nomadnet/vendor/configobj.py

@@ -19,7 +19,7 @@ import sys
 
 from codecs import BOM_UTF8, BOM_UTF16, BOM_UTF16_BE, BOM_UTF16_LE
 
-import six
+import RNS.vendor.six as six
 __version__ = '5.0.6'
 
 # imported lazily to avoid startup performance hit if it isn't used

nomadnet/vendor/quotes.py

@@ -1,4 +1,7 @@
 quotes = [
     ("I want the wisdom that wise men revere. I want more.", "Faithless"),
-    ("That's enough entropy for you my friend", "Unknown")
+    ("That's enough entropy for you my friend", "Unknown"),
+    ("Any time two people connect online, it's financed by a third person who believes they can manipulate the first two", "Jaron Lanier"),
+    ("The landscape of the future is set, but how one will march across it is not determined", "Terence McKenna")
+    ("Freedom originates in the division of power, despotism in its concentration.", "John Acton")
 ]

setup.py

@@ -5,6 +5,12 @@ exec(open("nomadnet/_version.py", "r").read())
 with open("README.md", "r") as fh:
     long_description = fh.read()
 
+package_data = {
+"": [
+    "examples/messageboard/*",
+    ]
+}
+
 setuptools.setup(
     name="nomadnet",
     version=__version__,
@@ -15,6 +21,7 @@ setuptools.setup(
     long_description_content_type="text/markdown",
     url="https://github.com/markqvist/nomadnet",
     packages=setuptools.find_packages(),
+    package_data=package_data,
     classifiers=[
         "Programming Language :: Python :: 3",
         "License :: OSI Approved :: MIT License",
@@ -23,6 +30,6 @@ setuptools.setup(
     entry_points= {
         'console_scripts': ['nomadnet=nomadnet.nomadnet:main']
     },
-    install_requires=['rns>=0.2.3', 'lxmf>=0.0.8', 'urwid>=2.1.2'],
-    python_requires='>=3.6',
+    install_requires=["rns>=0.4.9", "lxmf>=0.3.1", "urwid>=2.1.2", "qrcode"],
+    python_requires=">=3.6",
 )