relayer, second attempt, now much better.

This commit is contained in:
fiatjaf
2023-08-10 14:32:11 -03:00
parent e4fe82dd7f
commit 8968982b9a
93 changed files with 2212 additions and 2674 deletions

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@@ -1,43 +0,0 @@
name: build all relays for all platforms
on:
push:
tags:
- '*'
permissions:
contents: write
jobs:
make-release:
runs-on: ubuntu-latest
steps:
- uses: actions/create-release@latest
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
with:
tag_name: ${{ github.ref }}
release_name: ${{ github.ref }}
build-all-for-all:
runs-on: ubuntu-latest
needs:
- make-release
strategy:
matrix:
goos: [linux, windows, darwin, freebsd, openbsd]
goarch: [amd64, arm64]
project: ['basic', 'whitelisted', 'expensive', 'rss-bridge', 'search']
exclude:
- goarch: arm64
goos: windows
steps:
- uses: actions/checkout@v3
- uses: wangyoucao577/go-release-action@v1.30
with:
github_token: ${{ secrets.GITHUB_TOKEN }}
goos: ${{ matrix.goos }}
goarch: ${{ matrix.goarch }}
goversion: "1.18"
project_path: ${{ matrix.project }}
binary_name: "relayer-${{ matrix.project }}-${{ matrix.goos }}-${{ matrix.goarch }}"
overwrite: true

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@@ -1,6 +1 @@
Nostr Relay Framework -- use it to implement your own custom relay.
There is an example/reference implementation at [basic](/examples/basic/). Binaries for that are also available under [Releases](
https://github.com/fiatjaf/relayer/releases).
<a href="https://godoc.org/github.com/fiatjaf/relayer"><img src="https://img.shields.io/badge/api-reference-blue.svg?style=flat-square" alt="GoDoc"></a>
khatru

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@@ -1,56 +1,134 @@
package relayer
package khatru
import (
"context"
"fmt"
"regexp"
"github.com/fiatjaf/relayer/v2/storage"
"github.com/nbd-wtf/go-nostr"
)
var nip20prefixmatcher = regexp.MustCompile(`^\w+: `)
// AddEvent has a business rule to add an event to the relayer
func AddEvent(ctx context.Context, relay Relay, evt *nostr.Event) (accepted bool, message string) {
func (rl *Relay) AddEvent(ctx context.Context, evt *nostr.Event) error {
if evt == nil {
return false, ""
return fmt.Errorf("event is nil")
}
store := relay.Storage(ctx)
advancedSaver, _ := store.(AdvancedSaver)
msg := ""
rejecting := false
for _, reject := range rl.RejectEvent {
rejecting, msg = reject(ctx, evt)
if rejecting {
break
}
}
if !relay.AcceptEvent(ctx, evt) {
return false, "blocked: event blocked by relay"
if rejecting {
if msg == "" {
msg = "no reason"
}
return fmt.Errorf(msg)
}
if 20000 <= evt.Kind && evt.Kind < 30000 {
// do not store ephemeral events
} else {
if advancedSaver != nil {
advancedSaver.BeforeSave(ctx, evt)
}
if saveErr := store.SaveEvent(ctx, evt); saveErr != nil {
switch saveErr {
case storage.ErrDupEvent:
return true, saveErr.Error()
default:
errmsg := saveErr.Error()
if nip20prefixmatcher.MatchString(errmsg) {
return false, errmsg
} else {
return false, fmt.Sprintf("error: failed to save (%s)", errmsg)
if evt.Kind == 0 || evt.Kind == 3 || (10000 <= evt.Kind && evt.Kind < 20000) {
// replaceable event, delete before storing
for _, query := range rl.QueryEvents {
ch, err := query(ctx, nostr.Filter{Authors: []string{evt.PubKey}, Kinds: []int{evt.Kind}})
if err != nil {
continue
}
previous := <-ch
if previous != nil {
for _, del := range rl.DeleteEvent {
del(ctx, previous)
}
}
}
} else if 30000 <= evt.Kind && evt.Kind < 40000 {
// parameterized replaceable event, delete before storing
d := evt.Tags.GetFirst([]string{"d", ""})
if d != nil {
for _, query := range rl.QueryEvents {
ch, err := query(ctx, nostr.Filter{Authors: []string{evt.PubKey}, Kinds: []int{evt.Kind}, Tags: nostr.TagMap{"d": []string{d.Value()}}})
if err != nil {
continue
}
previous := <-ch
if previous != nil {
for _, del := range rl.DeleteEvent {
del(ctx, previous)
}
}
}
}
}
if advancedSaver != nil {
advancedSaver.AfterSave(evt)
// store
for _, store := range rl.StoreEvent {
if saveErr := store(ctx, evt); saveErr != nil {
switch saveErr {
case ErrDupEvent:
return nil
default:
errmsg := saveErr.Error()
if nip20prefixmatcher.MatchString(errmsg) {
return saveErr
} else {
return fmt.Errorf("error: failed to save (%s)", errmsg)
}
}
}
}
for _, ons := range rl.OnEventSaved {
ons(ctx, evt)
}
}
notifyListeners(evt)
return true, ""
return nil
}
func (rl *Relay) handleDeleteRequest(ctx context.Context, evt *nostr.Event) error {
// event deletion -- nip09
for _, tag := range evt.Tags {
if len(tag) >= 2 && tag[0] == "e" {
// first we fetch the event
for _, query := range rl.QueryEvents {
ch, err := query(ctx, nostr.Filter{IDs: []string{tag[1]}})
if err != nil {
continue
}
target := <-ch
if target == nil {
continue
}
// got the event, now check if the user can delete it
acceptDeletion := target.PubKey == evt.PubKey
var msg string
if acceptDeletion == false {
msg = "you are not the author of this event"
}
// but if we have a function to overwrite this outcome, use that instead
for _, odo := range rl.OverwriteDeletionOutcome {
acceptDeletion, msg = odo(ctx, target, evt)
}
if acceptDeletion {
// delete it
for _, del := range rl.DeleteEvent {
del(ctx, target)
}
} else {
// fail and stop here
return fmt.Errorf("blocked: %s", msg)
}
// don't try to query this same event again
break
}
}
}
return nil
}

5
errors.go Normal file
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@@ -0,0 +1,5 @@
package khatru
import "fmt"
var ErrDupEvent = fmt.Errorf("duplicate: event already exists")

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@@ -0,0 +1,26 @@
package main
import (
"fmt"
"net/http"
"github.com/fiatjaf/khatru"
"github.com/fiatjaf/khatru/plugins/storage/badgern"
)
func main() {
relay := khatru.NewRelay()
db := badgern.BadgerBackend{Path: "/tmp/khatru-badgern-tmp"}
if err := db.Init(); err != nil {
panic(err)
}
relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
relay.CountEvents = append(relay.CountEvents, db.CountEvents)
relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
fmt.Println("running on :3334")
http.ListenAndServe(":3334", relay)
}

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@@ -0,0 +1,26 @@
package main
import (
"fmt"
"net/http"
"github.com/fiatjaf/khatru"
"github.com/fiatjaf/khatru/plugins/storage/elasticsearch"
)
func main() {
relay := khatru.NewRelay()
db := elasticsearch.ElasticsearchStorage{URL: ""}
if err := db.Init(); err != nil {
panic(err)
}
relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
relay.CountEvents = append(relay.CountEvents, db.CountEvents)
relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
fmt.Println("running on :3334")
http.ListenAndServe(":3334", relay)
}

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@@ -0,0 +1,28 @@
package main
import (
"fmt"
"net/http"
"os"
"github.com/fiatjaf/khatru"
"github.com/fiatjaf/khatru/plugins/storage/lmdbn"
)
func main() {
relay := khatru.NewRelay()
db := lmdbn.LMDBBackend{Path: "/tmp/khatru-lmdbn-tmp"}
os.MkdirAll(db.Path, 0755)
if err := db.Init(); err != nil {
panic(err)
}
relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
relay.CountEvents = append(relay.CountEvents, db.CountEvents)
relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
fmt.Println("running on :3334")
http.ListenAndServe(":3334", relay)
}

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@@ -0,0 +1,26 @@
package main
import (
"fmt"
"net/http"
"github.com/fiatjaf/khatru"
"github.com/fiatjaf/khatru/plugins/storage/postgresql"
)
func main() {
relay := khatru.NewRelay()
db := postgresql.PostgresBackend{DatabaseURL: "postgresql://localhost:5432/tmp-khatru-relay"}
if err := db.Init(); err != nil {
panic(err)
}
relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
relay.CountEvents = append(relay.CountEvents, db.CountEvents)
relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
fmt.Println("running on :3334")
http.ListenAndServe(":3334", relay)
}

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@@ -0,0 +1,26 @@
package main
import (
"fmt"
"net/http"
"github.com/fiatjaf/khatru"
"github.com/fiatjaf/khatru/plugins/storage/sqlite3"
)
func main() {
relay := khatru.NewRelay()
db := sqlite3.SQLite3Backend{DatabaseURL: "/tmp/khatru-sqlite-tmp"}
if err := db.Init(); err != nil {
panic(err)
}
relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
relay.CountEvents = append(relay.CountEvents, db.CountEvents)
relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
fmt.Println("running on :3334")
http.ListenAndServe(":3334", relay)
}

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@@ -1 +0,0 @@
relayer-basic

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@@ -1,8 +0,0 @@
FROM golang:1.18
WORKDIR /go/src/app
COPY ./ .
RUN go get -d -v ./...
RUN go install -v ./...
RUN cd basic && make

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@@ -1,2 +0,0 @@
relayer-basic: $(shell find .. -name "*.go")
CC=$$(which musl-gcc) go build -ldflags='-s -w -linkmode external -extldflags "-static"' -o ./relayer-basic

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@@ -1,24 +0,0 @@
relayer basic
=============
- a basic relay implementation based on relayer.
- uses postgres, which I think must be over version 12 since it uses generated columns.
- it has some antispam limits, tries to delete old stuff so things don't get out of control, and some other small optimizations.
running
-------
grab a binary from the releases page and run it with the environment variable POSTGRESQL_DATABASE set to some postgres url:
POSTGRESQL_DATABASE=postgres://name:pass@localhost:5432/dbname ./relayer-basic
it also accepts a HOST and a PORT environment variables.
compiling
---------
if you know Go you already know this:
go install github.com/fiatjaf/relayer/basic
or something like that.

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@@ -1,32 +0,0 @@
version: "3.8"
services:
relay:
build:
context: ../
dockerfile: ./basic/Dockerfile
environment:
PORT: 2700
POSTGRESQL_DATABASE: postgres://nostr:nostr@postgres:5432/nostr?sslmode=disable
depends_on:
postgres:
condition: service_healthy
ports:
- 2700:2700
command: "./basic/relayer-basic"
postgres:
image: postgres
restart: always
environment:
POSTGRES_DB: nostr
POSTGRES_USER: nostr
POSTGRES_PASSWORD: nostr
POSTGRES_HOST_AUTH_METHOD: trust # allow all connections without a password. This is *not* recommended for prod
ports:
- 5432:5432
healthcheck:
test: ["CMD-SHELL", "pg_isready -U nostr"] # database username here - nostr, should be changed if other user
interval: 10s
timeout: 5s
retries: 5

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@@ -1,73 +0,0 @@
package main
import (
"context"
"encoding/json"
"fmt"
"log"
"time"
"github.com/fiatjaf/relayer/v2"
"github.com/fiatjaf/relayer/v2/storage/postgresql"
"github.com/kelseyhightower/envconfig"
"github.com/nbd-wtf/go-nostr"
)
type Relay struct {
PostgresDatabase string `envconfig:"POSTGRESQL_DATABASE"`
storage *postgresql.PostgresBackend
}
func (r *Relay) Name() string {
return "BasicRelay"
}
func (r *Relay) Storage(ctx context.Context) relayer.Storage {
return r.storage
}
func (r *Relay) Init() error {
err := envconfig.Process("", r)
if err != nil {
return fmt.Errorf("couldn't process envconfig: %w", err)
}
// every hour, delete all very old events
go func() {
db := r.Storage(context.TODO()).(*postgresql.PostgresBackend)
for {
time.Sleep(60 * time.Minute)
db.DB.Exec(`DELETE FROM event WHERE created_at < $1`, time.Now().AddDate(0, -3, 0).Unix()) // 3 months
}
}()
return nil
}
func (r *Relay) AcceptEvent(ctx context.Context, evt *nostr.Event) bool {
// block events that are too large
jsonb, _ := json.Marshal(evt)
if len(jsonb) > 10000 {
return false
}
return true
}
func main() {
r := Relay{}
if err := envconfig.Process("", &r); err != nil {
log.Fatalf("failed to read from env: %v", err)
return
}
r.storage = &postgresql.PostgresBackend{DatabaseURL: r.PostgresDatabase}
server, err := relayer.NewServer(&r)
if err != nil {
log.Fatalf("failed to create server: %v", err)
}
if err := server.Start("0.0.0.0", 7447); err != nil {
log.Fatalf("server terminated: %v", err)
}
}

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@@ -0,0 +1,40 @@
package main
import (
"context"
"fmt"
"net/http"
"os"
"github.com/fiatjaf/khatru"
"github.com/fiatjaf/khatru/plugins"
"github.com/fiatjaf/khatru/plugins/storage/lmdbn"
"github.com/nbd-wtf/go-nostr"
)
func main() {
relay := khatru.NewRelay()
db := lmdbn.LMDBBackend{Path: "/tmp/exclusive"}
os.MkdirAll(db.Path, 0755)
if err := db.Init(); err != nil {
panic(err)
}
relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
relay.CountEvents = append(relay.CountEvents, db.CountEvents)
relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
relay.RejectEvent = append(relay.RejectEvent, plugins.PreventTooManyIndexableTags(10))
relay.RejectFilter = append(relay.RejectFilter, plugins.NoPrefixFilters, plugins.NoComplexFilters)
relay.OnEventSaved = append(relay.OnEventSaved, func(ctx context.Context, event *nostr.Event) {
})
fmt.Println("running on :3334")
http.ListenAndServe(":3334", relay)
}
func deleteStuffThatCanBeFoundElsewhere() {
}

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@@ -1 +0,0 @@
relayer-expensive

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@@ -1,2 +0,0 @@
relayer-expensive: $(shell find .. -name "*.go")
CC=$$(which musl-gcc) go build -ldflags='-s -w -linkmode external -extldflags "-static"' -o ./relayer-expensive

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@@ -1,31 +0,0 @@
expensive-relay, a sybil-free corner of nostr
=============================================
- a nostr relay implementation based on relayer.
- uses postgres, which I think must be over version 12 since it uses generated columns.
- requires users to manually register themselves to be able to publish events and pay a fee. this should prevent spam.
- aside from that it's basically the same thing as relayer basic.
running
-------
this requires a recent CLN version with Commando.
grab a binary from the releases page and run it with the following environment variables:
POSTGRESQL_DATABASE=postgresql://...
CLN_NODE_ID=02fed8723...
CLN_HOST=127.0.0.1:9735
CLN_RUNE=...
TICKET_PRICE_SATS=500
adjust the values above accordingly.
compiling
---------
if you know Go you already know this:
go install github.com/fiatjaf/relayer/expensive
or something like that.

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@@ -1,68 +0,0 @@
package main
import (
"encoding/json"
"net/http"
)
func handleWebpage(w http.ResponseWriter, rq *http.Request) {
w.Header().Set("Content-Type", "text/html")
w.Write([]byte(`
<meta charset=utf-8>
<title>expensive relay</title>
<h1>expensive relay</h1>
<a href="https://github.com/fiatjaf/expensive-relay">https://github.com/fiatjaf/expensive-relay</a>
<p>this is a nostr relay that only accepts events published from keys that pay a registration fee. this is an antispam measure. you can still be banned if you're spamming or doing something bad.</p>
<p>to register your nostr public key, type it below and click the button.</p>
<form>
<label>
nostr public key:
<input name=pubkey />
</label>
<button>Get Invoice</button>
</form>
<p id=message></p>
<a id=link><canvas id=qr /></a>
<code id=invoice></code>
<script src="https://cdnjs.cloudflare.com/ajax/libs/qrious/4.0.2/qrious.min.js"></script>
<script>
document.querySelector('form').addEventListener('submit', async ev => {
ev.preventDefault()
let res = await (await fetch('/invoice?pubkey=' + ev.target.pubkey.value)).text()
let { bolt11, error } = JSON.parse(res)
if (bolt11) {
invoice.innerHTML = bolt11
link.href = 'lightning:' + bolt11
new QRious({
element: qr,
value: bolt11.toUpperCase(),
size: 300
});
} else {
message.innerHTML = error
}
})
</script>
<style>
body {
margin: 10px auto;
width: 800px;
max-width: 90%;
}
</style>
`))
}
func handleInvoice(w http.ResponseWriter, rq *http.Request, r *Relay) {
w.Header().Set("Content-Type", "application/json")
invoice, err := generateInvoice(r, rq.URL.Query().Get("pubkey"))
if err != nil {
json.NewEncoder(w).Encode(struct {
Error string `json:"error"`
}{err.Error()})
} else {
json.NewEncoder(w).Encode(struct {
Invoice string `json:"bolt11"`
}{invoice})
}
}

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@@ -1,88 +0,0 @@
package main
import (
"encoding/json"
"errors"
"fmt"
"time"
lnsocket "github.com/jb55/lnsocket/go"
"github.com/tidwall/gjson"
)
func generateLabel(pubkey string) string { return fmt.Sprintf("relayer-expensive:ticket:%s", pubkey) }
func generateInvoice(r *Relay, pubkey string) (string, error) {
label := generateLabel(pubkey)
cln := lnsocket.LNSocket{}
cln.GenKey()
err := cln.ConnectAndInit(r.CLNHost, r.CLNNodeId)
if err != nil {
return "", err
}
defer cln.Disconnect()
// check if there is an invoice already
jparams, _ := json.Marshal(map[string]any{
"label": label,
})
result, _ := cln.Rpc(r.CLNRune, "listinvoices", string(jparams))
if gjson.Get(result, "result.invoices.#").Int() == 1 {
timestamp := time.Now().Unix()
if (gjson.Get(result, "result.invoices.0.expires_at").Int() > timestamp) {
return gjson.Get(result, "result.invoices.0.bolt11").String(), nil
}
jparams, _ := json.Marshal(map[string]any{
"label": label,
"status": "expired",
})
cln.Rpc(r.CLNRune, "delinvoice", string(jparams))
}
// otherwise generate an invoice
jparams, _ = json.Marshal(map[string]any{
"amount_msat": r.TicketPriceSats * 1000,
"label": label,
"description": fmt.Sprintf("%s's ticket for writing to relayer-expensive", pubkey),
})
result, err = cln.Rpc(r.CLNRune, "invoice", string(jparams))
if err != nil {
return "", err
}
resErr := gjson.Get(result, "error")
if resErr.Type != gjson.Null {
if resErr.Type == gjson.JSON {
return "", errors.New(resErr.Get("message").String())
} else if resErr.Type == gjson.String {
return "", errors.New(resErr.String())
}
return "", fmt.Errorf("Unknown commando error: '%v'", resErr)
}
invoice := gjson.Get(result, "result.bolt11")
if invoice.Type != gjson.String {
return "", fmt.Errorf("No bolt11 result found in invoice response, got %v", result)
}
return invoice.String(), nil
}
func checkInvoicePaidOk(pubkey string) bool {
cln := lnsocket.LNSocket{}
cln.GenKey()
err := cln.ConnectAndInit(r.CLNHost, r.CLNNodeId)
if err != nil {
return false
}
defer cln.Disconnect()
jparams, _ := json.Marshal(map[string]any{
"label": generateLabel(pubkey),
})
result, _ := cln.Rpc(r.CLNRune, "listinvoices", string(jparams))
return gjson.Get(result, "result.invoices.0.status").String() == "paid"
}

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@@ -1,85 +0,0 @@
package main
import (
"context"
"encoding/json"
"log"
"net/http"
"time"
"github.com/fiatjaf/relayer/v2"
"github.com/fiatjaf/relayer/v2/storage/postgresql"
"github.com/kelseyhightower/envconfig"
_ "github.com/lib/pq"
"github.com/nbd-wtf/go-nostr"
)
type Relay struct {
PostgresDatabase string `envconfig:"POSTGRESQL_DATABASE"`
CLNNodeId string `envconfig:"CLN_NODE_ID"`
CLNHost string `envconfig:"CLN_HOST"`
CLNRune string `envconfig:"CLN_RUNE"`
TicketPriceSats int64 `envconfig:"TICKET_PRICE_SATS"`
storage *postgresql.PostgresBackend
}
var r = &Relay{}
func (r *Relay) Name() string {
return "ExpensiveRelay"
}
func (r *Relay) Storage(ctx context.Context) relayer.Storage {
return r.storage
}
func (r *Relay) Init() error {
// every hour, delete all very old events
go func() {
db := r.Storage(context.TODO()).(*postgresql.PostgresBackend)
for {
time.Sleep(60 * time.Minute)
db.DB.Exec(`DELETE FROM event WHERE created_at < $1`, time.Now().AddDate(0, -3, 0).Unix()) // 6 months
}
}()
return nil
}
func (r *Relay) AcceptEvent(ctx context.Context, evt *nostr.Event) bool {
// only accept they have a good preimage for a paid invoice for their public key
if !checkInvoicePaidOk(evt.PubKey) {
return false
}
// block events that are too large
jsonb, _ := json.Marshal(evt)
if len(jsonb) > 100000 {
return false
}
return true
}
func main() {
r := Relay{}
if err := envconfig.Process("", &r); err != nil {
log.Fatalf("failed to read from env: %v", err)
return
}
r.storage = &postgresql.PostgresBackend{DatabaseURL: r.PostgresDatabase}
server, err := relayer.NewServer(&r)
if err != nil {
log.Fatalf("failed to create server: %v", err)
}
// special handlers
server.Router().HandleFunc("/", handleWebpage)
server.Router().HandleFunc("/invoice", func(w http.ResponseWriter, rq *http.Request) {
handleInvoice(w, rq, &r)
})
if err := server.Start("0.0.0.0", 7447); err != nil {
log.Fatalf("server terminated: %v", err)
}
}

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@@ -1,4 +0,0 @@
DOMAIN=dev2.hazlitt.fiatjaf.com
SECRET=ie32uyg48o72iv
HOST=0.0.0.0
PORT=3002

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@@ -1,2 +0,0 @@
relayer-rss-bridge
db

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@@ -1,2 +0,0 @@
relayer-rss-bridge: $(shell find . -name "*.go")
CC=$$(which musl-gcc) go build -ldflags="-s -w -linkmode external -extldflags '-static'" -o ./relayer-rss-bridge

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@@ -1,26 +0,0 @@
rss-bridge, a relay that creates virtual nostr profiles for each rss feed
=========================================================================
- a nostr relay implementation based on relayer.
- doesn't accept any events, only emits them.
- does so by manually reading and parsing rss feeds.
![](screenshot.png)
running
-------
grab a binary from the releases page and run it with the following environment variable:
SECRET=just-a-random-string-to-be-used-when-generating-the-virtual-private-keys
it will create a local database file to store the currently known rss feed urls.
compiling
---------
if you know Go you already know this:
go install github.com/fiatjaf/relayer/rss-bridge
or something like that.

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@@ -1 +0,0 @@
MANIFEST-000164

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@@ -1,43 +0,0 @@
[Version]
pebble_version=0.1
[Options]
bytes_per_sync=524288
cache_size=8388608
cleaner=delete
compaction_debt_concurrency=1073741824
comparer=leveldb.BytewiseComparator
delete_range_flush_delay=0s
disable_wal=false
flush_split_bytes=4194304
format_major_version=1
l0_compaction_concurrency=10
l0_compaction_threshold=4
l0_stop_writes_threshold=12
lbase_max_bytes=67108864
max_concurrent_compactions=1
max_manifest_file_size=134217728
max_open_files=1000
mem_table_size=4194304
mem_table_stop_writes_threshold=2
min_compaction_rate=4194304
min_deletion_rate=0
min_flush_rate=1048576
merger=pebble.concatenate
read_compaction_rate=16000
read_sampling_multiplier=16
strict_wal_tail=true
table_cache_shards=4
table_property_collectors=[]
validate_on_ingest=false
wal_dir=
wal_bytes_per_sync=0
[Level "0"]
block_restart_interval=16
block_size=4096
compression=Snappy
filter_policy=none
filter_type=table
index_block_size=4096
target_file_size=2097152

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@@ -1,157 +0,0 @@
package main
import (
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"encoding/json"
"fmt"
"net/http"
"strings"
"time"
"github.com/PuerkitoBio/goquery"
strip "github.com/grokify/html-strip-tags-go"
"github.com/mmcdole/gofeed"
"github.com/nbd-wtf/go-nostr"
"github.com/rif/cache2go"
)
var (
fp = gofeed.NewParser()
feedCache = cache2go.New(512, time.Minute*19)
client = &http.Client{
Timeout: 5 * time.Second,
}
)
type Entity struct {
PrivateKey string
URL string
}
var types = []string{
"rss+xml",
"atom+xml",
"feed+json",
"text/xml",
"application/xml",
}
func getFeedURL(url string) string {
resp, err := client.Get(url)
if err != nil || resp.StatusCode >= 300 {
return ""
}
ct := resp.Header.Get("Content-Type")
for _, typ := range types {
if strings.Contains(ct, typ) {
return url
}
}
if strings.Contains(ct, "text/html") {
doc, err := goquery.NewDocumentFromReader(resp.Body)
if err != nil {
return ""
}
for _, typ := range types {
href, _ := doc.Find(fmt.Sprintf("link[type*='%s']", typ)).Attr("href")
if href == "" {
continue
}
if !strings.HasPrefix(href, "http") {
href, _ = urljoin(url, href)
}
return href
}
}
return ""
}
func parseFeed(url string) (*gofeed.Feed, error) {
if feed, ok := feedCache.Get(url); ok {
return feed.(*gofeed.Feed), nil
}
feed, err := fp.ParseURL(url)
if err != nil {
return nil, err
}
// cleanup a little so we don't store too much junk
for i := range feed.Items {
feed.Items[i].Content = ""
}
feedCache.Set(url, feed)
return feed, nil
}
func feedToSetMetadata(pubkey string, feed *gofeed.Feed) nostr.Event {
metadata := map[string]string{
"name": feed.Title,
"about": feed.Description + "\n\n" + feed.Link,
}
if feed.Image != nil {
metadata["picture"] = feed.Image.URL
}
content, _ := json.Marshal(metadata)
createdAt := time.Now()
if feed.PublishedParsed != nil {
createdAt = *feed.PublishedParsed
}
evt := nostr.Event{
PubKey: pubkey,
CreatedAt: nostr.Timestamp(createdAt.Unix()),
Kind: nostr.KindSetMetadata,
Tags: nostr.Tags{},
Content: string(content),
}
evt.ID = string(evt.Serialize())
return evt
}
func itemToTextNote(pubkey string, item *gofeed.Item) nostr.Event {
content := ""
if item.Title != "" {
content = "**" + item.Title + "**\n\n"
}
content += strip.StripTags(item.Description)
if len(content) > 250 {
content += content[0:249] + "…"
}
content += "\n\n" + item.Link
createdAt := time.Now()
if item.UpdatedParsed != nil {
createdAt = *item.UpdatedParsed
}
if item.PublishedParsed != nil {
createdAt = *item.PublishedParsed
}
evt := nostr.Event{
PubKey: pubkey,
CreatedAt: nostr.Timestamp(createdAt.Unix()),
Kind: nostr.KindTextNote,
Tags: nostr.Tags{},
Content: content,
}
evt.ID = string(evt.Serialize())
return evt
}
func privateKeyFromFeed(url string) string {
m := hmac.New(sha256.New, []byte(relay.Secret))
m.Write([]byte(url))
r := m.Sum(nil)
return hex.EncodeToString(r)
}

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@@ -1,130 +0,0 @@
package main
import (
"encoding/json"
"fmt"
"log"
"net/http"
"github.com/nbd-wtf/go-nostr"
. "github.com/stevelacy/daz"
)
var head = H("head",
H("meta", Attr{"charset": "utf-8"}),
H("meta", Attr{
"name": "viewport",
"content": "width=device-width, initial-scale=1.0",
}),
H("title", "rsslay"),
)
func handleWebpage(w http.ResponseWriter, r *http.Request) {
items := make([]HTML, 0, 200)
iter := relay.db.NewIter(nil)
for iter.First(); iter.Valid(); iter.Next() {
pubkey := string(iter.Key())
var entity Entity
if err := json.Unmarshal(iter.Value(), &entity); err != nil {
continue
}
items = append(items, H("tr",
H("td",
H("code",
pubkey),
),
H("td",
H("a", Attr{
"href": entity.URL,
}, entity.URL),
),
))
}
body := H("body",
H("h1", "rsslay"),
H("p", "rsslay turns RSS or Atom feeds into ",
H("a", Attr{
"href": "https://github.com/fiatjaf/nostr",
}, "Nostr"),
" profiles.",
),
H("h2", "How to use"),
H("ol",
H("li", "Get the blog URL or RSS or Atom feed URL and paste below;"),
H("li", "Click the button to get its corresponding public key"),
H("li", "Add this relay to your Nostr client"),
H("li", "Follow the feed's public key from your Nostr client."),
),
H("form", Attr{
"action": "/create",
"method": "GET",
"class": "my-4",
},
H("label",
H("input", Attr{
"name": "url",
"type": "url",
"placeholder": "https://.../feed",
}),
),
H("button", "Get Public Key"),
),
H("h2", "Some of the existing feeds"),
H("table", items),
H("h2", "Source Code"),
H("p", "You can find it at ",
H("a", Attr{"href": "https://github.com/fiatjaf/rsslay"},
"https://github.com/fiatjaf/rsslay"),
),
)
w.Header().Set("content-type", "text/html")
w.Write([]byte(
H("html",
head,
body,
)()))
}
func handleCreateFeed(w http.ResponseWriter, r *http.Request) {
url := r.URL.Query().Get("url")
feedurl := getFeedURL(url)
if feedurl == "" {
w.WriteHeader(400)
fmt.Fprint(w, "couldn't find a feed url")
return
}
if _, err := parseFeed(feedurl); err != nil {
w.WriteHeader(400)
fmt.Fprint(w, "bad feed: "+err.Error())
return
}
sk := privateKeyFromFeed(feedurl)
pubkey, err := nostr.GetPublicKey(sk)
if err != nil {
w.WriteHeader(500)
fmt.Fprint(w, "bad private key: "+err.Error())
return
}
j, _ := json.Marshal(Entity{
PrivateKey: sk,
URL: feedurl,
})
if err := relay.db.Set([]byte(pubkey), j, nil); err != nil {
w.WriteHeader(500)
fmt.Fprint(w, "failure: "+err.Error())
return
}
log.Printf("saved feed at url %q as pubkey %s", feedurl, pubkey)
fmt.Fprintf(w, "url : %s\npubkey: %s", feedurl, pubkey)
return
}

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@@ -1,20 +0,0 @@
package main
import (
"net/url"
"path"
)
func urljoin(baseUrl string, elem ...string) (result string, err error) {
u, err := url.Parse(baseUrl)
if err != nil {
return
}
if len(elem) > 0 {
elem = append([]string{u.Path}, elem...)
u.Path = path.Join(elem...)
}
return u.String(), nil
}

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@@ -1,191 +0,0 @@
package main
import (
"context"
"encoding/json"
"errors"
"fmt"
"log"
"sync"
"time"
"github.com/cockroachdb/pebble"
"github.com/fiatjaf/relayer/v2"
"github.com/kelseyhightower/envconfig"
"github.com/nbd-wtf/go-nostr"
"golang.org/x/exp/slices"
)
var relay = &Relay{
updates: make(chan nostr.Event),
}
type Relay struct {
Secret string `envconfig:"SECRET" required:"true"`
updates chan nostr.Event
lastEmitted sync.Map
db *pebble.DB
}
func (relay *Relay) Name() string {
return "relayer-rss-bridge"
}
func (relay *Relay) Init() error {
err := envconfig.Process("", relay)
if err != nil {
return fmt.Errorf("couldn't process envconfig: %w", err)
}
if db, err := pebble.Open("db", nil); err != nil {
log.Fatalf("failed to open db: %v", err)
} else {
relay.db = db
}
go func() {
time.Sleep(20 * time.Minute)
filters := relayer.GetListeningFilters()
log.Printf("checking for updates; %d filters active", len(filters))
for _, filter := range filters {
if filter.Kinds == nil || slices.Contains(filter.Kinds, nostr.KindTextNote) {
for _, pubkey := range filter.Authors {
if val, closer, err := relay.db.Get([]byte(pubkey)); err == nil {
defer closer.Close()
var entity Entity
if err := json.Unmarshal(val, &entity); err != nil {
log.Printf("got invalid json from db at key %s: %v", pubkey, err)
continue
}
feed, err := parseFeed(entity.URL)
if err != nil {
log.Printf("failed to parse feed at url %q: %v", entity.URL, err)
continue
}
for _, item := range feed.Items {
evt := itemToTextNote(pubkey, item)
last, ok := relay.lastEmitted.Load(entity.URL)
if !ok || time.Unix(last.(int64), 0).Before(evt.CreatedAt.Time()) {
evt.Sign(entity.PrivateKey)
relay.updates <- evt
relay.lastEmitted.Store(entity.URL, last)
}
}
}
}
}
}
}()
return nil
}
func (relay *Relay) AcceptEvent(ctx context.Context, _ *nostr.Event) bool {
return false
}
func (relay *Relay) Storage(ctx context.Context) relayer.Storage {
return store{relay.db}
}
type store struct {
db *pebble.DB
}
func (b store) Init() error { return nil }
func (b store) SaveEvent(ctx context.Context, _ *nostr.Event) error {
return errors.New("blocked: we don't accept any events")
}
func (b store) DeleteEvent(ctx context.Context, id string, pubkey string) error {
return errors.New("blocked: we can't delete any events")
}
func (b store) QueryEvents(ctx context.Context, filter *nostr.Filter) (chan *nostr.Event, error) {
if filter.IDs != nil || len(filter.Tags) > 0 {
return nil, nil
}
evts := make(chan *nostr.Event)
go func() {
for _, pubkey := range filter.Authors {
if val, closer, err := relay.db.Get([]byte(pubkey)); err == nil {
defer closer.Close()
var entity Entity
if err := json.Unmarshal(val, &entity); err != nil {
log.Printf("got invalid json from db at key %s: %v", pubkey, err)
continue
}
feed, err := parseFeed(entity.URL)
if err != nil {
log.Printf("failed to parse feed at url %q: %v", entity.URL, err)
continue
}
if filter.Kinds == nil || slices.Contains(filter.Kinds, nostr.KindSetMetadata) {
evt := feedToSetMetadata(pubkey, feed)
if filter.Since != nil && evt.CreatedAt.Time().Before(filter.Since.Time()) {
continue
}
if filter.Until != nil && evt.CreatedAt.Time().After(filter.Until.Time()) {
continue
}
evt.Sign(entity.PrivateKey)
evts <- &evt
}
if filter.Kinds == nil || slices.Contains(filter.Kinds, nostr.KindTextNote) {
var last uint32 = 0
for _, item := range feed.Items {
evt := itemToTextNote(pubkey, item)
if filter.Since != nil && evt.CreatedAt.Time().Before(filter.Since.Time()) {
continue
}
if filter.Until != nil && evt.CreatedAt.Time().After(filter.Until.Time()) {
continue
}
evt.Sign(entity.PrivateKey)
if evt.CreatedAt.Time().After(time.Unix(int64(last), 0)) {
last = uint32(evt.CreatedAt.Time().Unix())
}
evts <- &evt
}
relay.lastEmitted.Store(entity.URL, last)
}
}
}
}()
return evts, nil
}
func (relay *Relay) InjectEvents() chan nostr.Event {
return relay.updates
}
func main() {
server, err := relayer.NewServer(relay)
if err != nil {
log.Fatalf("failed to create server: %v", err)
}
server.Router().HandleFunc("/", handleWebpage)
server.Router().HandleFunc("/create", handleCreateFeed)
if err := server.Start("0.0.0.0", 7447); err != nil {
log.Fatalf("server terminated: %v", err)
}
}

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search

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@@ -1,26 +0,0 @@
# Search Relay
Uses ElasticSearch storage backend for all queries, with some basic full text search support.
Index some events:
```
bzip2 -cd nostr-wellorder-early-1m-v1.jsonl.bz2 | \
jq -c '["EVENT", .]' | \
awk 'length($0)<131072' | \
websocat -n -B 200000 ws://127.0.0.1:7447
```
Do a search:
```
echo '["REQ", "asdf", {"search": "steve", "kinds": [0]}]' | websocat -n ws://127.0.0.1:7447
```
## Customize
Currently the indexing is very basic: It will index the `contents` field for all events where kind != 4.
Some additional mapping and pre-processing could add better support for different content types.
See comments in `storage/elasticsearch/elasticsearch.go`.

View File

@@ -1,45 +0,0 @@
version: "3.8"
services:
relay:
image: golang
# build:
# context: ../
# dockerfile: ./basic/Dockerfile
environment:
PORT: 2700
ES_URL: http://elasticsearch:9200
depends_on:
elasticsearch:
condition: service_healthy
ports:
- 2700:2700
- 7447:7447
volumes:
- ./nostres:/bin
command: "/bin/relay"
elasticsearch:
container_name: elasticsearch
image: docker.elastic.co/elasticsearch/elasticsearch:8.6.0
restart: always
environment:
- network.host=0.0.0.0
- discovery.type=single-node
- cluster.name=docker-cluster
- node.name=cluster1-node1
- xpack.license.self_generated.type=basic
- xpack.security.enabled=false
- "ES_JAVA_OPTS=-Xms${ES_MEM:-4g} -Xmx${ES_MEM:-4g}"
ports:
- '127.0.0.1:9200:9200'
ulimits:
memlock:
soft: -1
hard: -1
healthcheck:
test:
["CMD-SHELL", "curl --silent --fail elasticsearch:9200/_cluster/health || exit 1"]
interval: 10s
timeout: 5s
retries: 5

View File

@@ -1,67 +0,0 @@
package main
import (
"context"
"fmt"
"log"
"github.com/fiatjaf/relayer/v2"
"github.com/fiatjaf/relayer/v2/storage/elasticsearch"
"github.com/kelseyhightower/envconfig"
"github.com/nbd-wtf/go-nostr"
)
type Relay struct {
storage *elasticsearch.ElasticsearchStorage
}
func (r *Relay) Name() string {
return "SearchRelay"
}
func (r *Relay) Storage(ctx context.Context) relayer.Storage {
return r.storage
}
func (r *Relay) Init() error {
err := envconfig.Process("", r)
if err != nil {
return fmt.Errorf("couldn't process envconfig: %w", err)
}
return nil
}
func (r *Relay) AcceptEvent(ctx context.Context, evt *nostr.Event) bool {
// block events that are too large
// jsonb, _ := json.Marshal(evt)
// if len(jsonb) > 100000 {
// return false
// }
return true
}
func (r *Relay) BeforeSave(evt *nostr.Event) {
// do nothing
}
func (r *Relay) AfterSave(evt *nostr.Event) {
}
func main() {
r := Relay{}
if err := envconfig.Process("", &r); err != nil {
log.Fatalf("failed to read from env: %v", err)
return
}
r.storage = &elasticsearch.ElasticsearchStorage{}
server, err := relayer.NewServer(&r)
if err != nil {
log.Fatalf("failed to create server: %v", err)
}
if err := server.Start("0.0.0.0", 7447); err != nil {
log.Fatalf("server terminated: %v", err)
}
}

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@@ -1 +0,0 @@
relayer-whitelisted

View File

@@ -1,2 +0,0 @@
relayer-whitelisted: $(shell find .. -name "*.go")
CC=$$(which musl-gcc) go build -ldflags='-s -w -linkmode external -extldflags "-static"' -o ./relayer-whitelisted

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@@ -1,24 +0,0 @@
whitelisted relay
=================
- a basic relay implementation based on relayer.
- uses postgres, which I think must be over version 12 since it uses generated columns.
- only accepts events from specific pubkeys defined via the environment variable `WHITELIST` (comma-separated).
running
-------
grab a binary from the releases page and run it with the environment variable POSTGRESQL_DATABASE set to some postgres url:
POSTGRESQL_DATABASE=postgres://name:pass@localhost:5432/dbname ./relayer-whitelisted
it also accepts a HOST and a PORT environment variables.
compiling
---------
if you know Go you already know this:
go install github.com/fiatjaf/relayer/whitelisted
or something like that.

View File

@@ -1,69 +0,0 @@
package main
import (
"context"
"encoding/json"
"log"
"github.com/fiatjaf/relayer/v2"
"github.com/fiatjaf/relayer/v2/storage/postgresql"
"github.com/kelseyhightower/envconfig"
"github.com/nbd-wtf/go-nostr"
)
type Relay struct {
PostgresDatabase string `envconfig:"POSTGRESQL_DATABASE"`
Whitelist []string `envconfig:"WHITELIST"`
storage *postgresql.PostgresBackend
}
func (r *Relay) Name() string {
return "WhitelistedRelay"
}
func (r *Relay) Storage(ctx context.Context) relayer.Storage {
return r.storage
}
func (r *Relay) Init() error {
return nil
}
func (r *Relay) AcceptEvent(ctx context.Context, evt *nostr.Event) bool {
// disallow anything from non-authorized pubkeys
found := false
for _, pubkey := range r.Whitelist {
if pubkey == evt.PubKey {
found = true
break
}
}
if !found {
return false
}
// block events that are too large
jsonb, _ := json.Marshal(evt)
if len(jsonb) > 100000 {
return false
}
return true
}
func main() {
r := Relay{}
if err := envconfig.Process("", &r); err != nil {
log.Fatalf("failed to read from env: %v", err)
return
}
r.storage = &postgresql.PostgresBackend{DatabaseURL: r.PostgresDatabase}
server, err := relayer.NewServer(&r)
if err != nil {
log.Fatalf("failed to create server: %v", err)
}
if err := server.Start("0.0.0.0", 7447); err != nil {
log.Fatalf("server terminated: %v", err)
}
}

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@@ -1,13 +0,0 @@
package relayer
import "context"
const AUTH_CONTEXT_KEY = iota
func GetAuthStatus(ctx context.Context) (pubkey string, ok bool) {
authedPubkey := ctx.Value(AUTH_CONTEXT_KEY)
if authedPubkey == nil {
return "", false
}
return authedPubkey.(string), true
}

73
go.mod
View File

@@ -1,99 +1,60 @@
module github.com/fiatjaf/relayer/v2
module github.com/fiatjaf/khatru
go 1.18
go 1.20
require (
github.com/PuerkitoBio/goquery v1.8.0
github.com/aquasecurity/esquery v0.2.0
github.com/cockroachdb/pebble v0.0.0-20220723153705-3fc374e4dc66
github.com/bmatsuo/lmdb-go v1.8.0
github.com/dgraph-io/badger/v4 v4.1.0
github.com/elastic/go-elasticsearch/v8 v8.6.0
github.com/fasthttp/websocket v1.5.3
github.com/gobwas/ws v1.2.0
github.com/grokify/html-strip-tags-go v0.0.1
github.com/jb55/lnsocket/go v0.0.0-20220725174341-b98b5cd37bb6
github.com/jmoiron/sqlx v1.3.1
github.com/kelseyhightower/envconfig v1.4.0
github.com/lib/pq v1.10.3
github.com/mattn/go-sqlite3 v1.14.6
github.com/mmcdole/gofeed v1.1.3
github.com/nbd-wtf/go-nostr v0.18.11
github.com/rif/cache2go v1.0.0
github.com/nbd-wtf/go-nostr v0.20.0
github.com/rs/cors v1.7.0
github.com/stevelacy/daz v0.1.4
github.com/stretchr/testify v1.8.0
github.com/tidwall/gjson v1.14.4
github.com/stretchr/testify v1.8.2
golang.org/x/exp v0.0.0-20230425010034-47ecfdc1ba53
)
require (
github.com/DataDog/zstd v1.4.5 // indirect
github.com/HdrHistogram/hdrhistogram-go v1.1.2 // indirect
github.com/aead/siphash v1.0.1 // indirect
github.com/andybalholm/brotli v1.0.5 // indirect
github.com/andybalholm/cascadia v1.3.1 // indirect
github.com/btcsuite/btcd v0.23.1 // indirect
github.com/btcsuite/btcd/btcec/v2 v2.3.2 // indirect
github.com/btcsuite/btcd/btcutil v1.1.3 // indirect
github.com/btcsuite/btcd/btcutil/psbt v1.1.4 // indirect
github.com/btcsuite/btcd/chaincfg/chainhash v1.0.2 // indirect
github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f // indirect
github.com/btcsuite/btcwallet v0.15.1 // indirect
github.com/btcsuite/btcwallet/wallet/txauthor v1.2.3 // indirect
github.com/btcsuite/btcwallet/wallet/txrules v1.2.0 // indirect
github.com/btcsuite/btcwallet/wallet/txsizes v1.1.0 // indirect
github.com/btcsuite/btcwallet/walletdb v1.4.0 // indirect
github.com/btcsuite/btcwallet/wtxmgr v1.5.0 // indirect
github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd // indirect
github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 // indirect
github.com/cespare/xxhash/v2 v2.1.1 // indirect
github.com/cockroachdb/errors v1.8.1 // indirect
github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f // indirect
github.com/cockroachdb/redact v1.0.8 // indirect
github.com/cockroachdb/sentry-go v0.6.1-cockroachdb.2 // indirect
github.com/cespare/xxhash/v2 v2.1.2 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/decred/dcrd/crypto/blake256 v1.0.1 // indirect
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
github.com/decred/dcrd/lru v1.0.0 // indirect
github.com/dgraph-io/ristretto v0.1.1 // indirect
github.com/dustin/go-humanize v1.0.0 // indirect
github.com/elastic/elastic-transport-go/v8 v8.0.0-20211216131617-bbee439d559c // indirect
github.com/elastic/go-elasticsearch/v7 v7.6.0 // indirect
github.com/fatih/structs v1.1.0 // indirect
github.com/go-errors/errors v1.0.1 // indirect
github.com/gobwas/httphead v0.1.0 // indirect
github.com/gobwas/pool v0.2.1 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang/snappy v0.0.4 // indirect
github.com/gorilla/websocket v1.5.0 // indirect
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 // indirect
github.com/golang/protobuf v1.3.1 // indirect
github.com/golang/snappy v0.0.3 // indirect
github.com/google/flatbuffers v1.12.1 // indirect
github.com/josharian/intern v1.0.0 // indirect
github.com/json-iterator/go v1.1.11 // indirect
github.com/kkdai/bstream v1.0.0 // indirect
github.com/klauspost/compress v1.16.5 // indirect
github.com/kr/pretty v0.1.0 // indirect
github.com/kr/text v0.2.0 // indirect
github.com/lightninglabs/gozmq v0.0.0-20191113021534-d20a764486bf // indirect
github.com/lightninglabs/neutrino v0.14.2 // indirect
github.com/lightningnetwork/lnd v0.15.0-beta // indirect
github.com/lightningnetwork/lnd/clock v1.1.0 // indirect
github.com/lightningnetwork/lnd/queue v1.1.0 // indirect
github.com/lightningnetwork/lnd/ticker v1.1.0 // indirect
github.com/lightningnetwork/lnd/tlv v1.0.3 // indirect
github.com/lightningnetwork/lnd/tor v1.0.1 // indirect
github.com/mailru/easyjson v0.7.7 // indirect
github.com/miekg/dns v1.1.43 // indirect
github.com/mmcdole/goxpp v0.0.0-20181012175147-0068e33feabf // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.1 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/puzpuzpuz/xsync v1.5.2 // indirect
github.com/savsgio/gotils v0.0.0-20230208104028-c358bd845dee // indirect
github.com/tidwall/gjson v1.14.4 // indirect
github.com/tidwall/match v1.1.1 // indirect
github.com/tidwall/pretty v1.2.0 // indirect
github.com/valyala/bytebufferpool v1.0.0 // indirect
github.com/valyala/fasthttp v1.47.0 // indirect
golang.org/x/crypto v0.7.0 // indirect
go.opencensus.io v0.22.5 // indirect
golang.org/x/net v0.8.0 // indirect
golang.org/x/sys v0.8.0 // indirect
golang.org/x/term v0.6.0 // indirect
golang.org/x/text v0.8.0 // indirect
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)

519
go.sum
View File

@@ -1,647 +1,188 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/CloudyKit/fastprinter v0.0.0-20170127035650-74b38d55f37a/go.mod h1:EFZQ978U7x8IRnstaskI3IysnWY5Ao3QgZUKOXlsAdw=
github.com/CloudyKit/jet v2.1.3-0.20180809161101-62edd43e4f88+incompatible/go.mod h1:HPYO+50pSWkPoj9Q/eq0aRGByCL6ScRlUmiEX5Zgm+w=
github.com/DataDog/zstd v1.4.5 h1:EndNeuB0l9syBZhut0wns3gV1hL8zX8LIu6ZiVHWLIQ=
github.com/DataDog/zstd v1.4.5/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
github.com/HdrHistogram/hdrhistogram-go v1.1.2 h1:5IcZpTvzydCQeHzK4Ef/D5rrSqwxob0t8PQPMybUNFM=
github.com/HdrHistogram/hdrhistogram-go v1.1.2/go.mod h1:yDgFjdqOqDEKOvasDdhWNXYg9BVp4O+o5f6V/ehm6Oo=
github.com/Joker/hpp v1.0.0/go.mod h1:8x5n+M1Hp5hC0g8okX3sR3vFQwynaX/UgSOM9MeBKzY=
github.com/Joker/jade v1.0.1-0.20190614124447-d475f43051e7/go.mod h1:6E6s8o2AE4KhCrqr6GRJjdC/gNfTdxkIXvuGZZda2VM=
github.com/PuerkitoBio/goquery v1.5.1/go.mod h1:GsLWisAFVj4WgDibEWF4pvYnkVQBpKBKeU+7zCJoLcc=
github.com/PuerkitoBio/goquery v1.8.0 h1:PJTF7AmFCFKk1N6V6jmKfrNH9tV5pNE6lZMkG0gta/U=
github.com/PuerkitoBio/goquery v1.8.0/go.mod h1:ypIiRMtY7COPGk+I/YbZLbxsxn9g5ejnI2HSMtkjZvI=
github.com/Shopify/goreferrer v0.0.0-20181106222321-ec9c9a553398/go.mod h1:a1uqRtAwp2Xwc6WNPJEufxJ7fx3npB4UV/JOLmbu5I0=
github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da h1:KjTM2ks9d14ZYCvmHS9iAKVt9AyzRSqNU1qabPih5BY=
github.com/aead/siphash v1.0.1 h1:FwHfE/T45KPKYuuSAKyyvE+oPWcaQ+CUmFW0bPlM+kg=
github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
github.com/ajstarks/svgo v0.0.0-20180226025133-644b8db467af/go.mod h1:K08gAheRH3/J6wwsYMMT4xOr94bZjxIelGM0+d/wbFw=
github.com/andybalholm/brotli v1.0.5 h1:8uQZIdzKmjc/iuPu7O2ioW48L81FgatrcpfFmiq/cCs=
github.com/andybalholm/brotli v1.0.5/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
github.com/andybalholm/cascadia v1.1.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y=
github.com/andybalholm/cascadia v1.3.1 h1:nhxRkql1kdYCc8Snf7D5/D3spOX+dBgjA6u8x004T2c=
github.com/andybalholm/cascadia v1.3.1/go.mod h1:R4bJ1UQfqADjvDa4P6HZHLh/3OxWWEqc0Sk8XGwHqvA=
github.com/aquasecurity/esquery v0.2.0 h1:9WWXve95TE8hbm3736WB7nS6Owl8UGDeu+0jiyE9ttA=
github.com/aquasecurity/esquery v0.2.0/go.mod h1:VU+CIFR6C+H142HHZf9RUkp4Eedpo9UrEKeCQHWf9ao=
github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
github.com/aymerick/raymond v2.0.3-0.20180322193309-b565731e1464+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/btcsuite/btcd v0.0.0-20190824003749-130ea5bddde3/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
github.com/btcsuite/btcd v0.22.0-beta.0.20220111032746-97732e52810c/go.mod h1:tjmYdS6MLJ5/s0Fj4DbLgSbDHbEqLJrtnHecBFkdz5M=
github.com/btcsuite/btcd v0.22.0-beta.0.20220204213055-eaf0459ff879/go.mod h1:osu7EoKiL36UThEgzYPqdRaxeo0NU8VoXqgcnwpey0g=
github.com/btcsuite/btcd v0.22.0-beta.0.20220207191057-4dc4ff7963b4/go.mod h1:7alexyj/lHlOtr2PJK7L/+HDJZpcGDn/pAU98r7DY08=
github.com/btcsuite/btcd v0.22.0-beta.0.20220316175102-8d5c75c28923/go.mod h1:taIcYprAW2g6Z9S0gGUxyR+zDwimyDMK5ePOX+iJ2ds=
github.com/btcsuite/btcd v0.23.0/go.mod h1:0QJIIN1wwIXF/3G/m87gIwGniDMDQqjVn4SZgnFpsYY=
github.com/btcsuite/btcd v0.23.1 h1:IB8cVQcC2X5mHbnfirLG5IZnkWYNTPlLZVrxUYSotbE=
github.com/btcsuite/btcd v0.23.1/go.mod h1:0QJIIN1wwIXF/3G/m87gIwGniDMDQqjVn4SZgnFpsYY=
github.com/btcsuite/btcd/btcec/v2 v2.1.0/go.mod h1:2VzYrv4Gm4apmbVVsSq5bqf1Ec8v56E48Vt0Y/umPgA=
github.com/btcsuite/btcd/btcec/v2 v2.1.1/go.mod h1:ctjw4H1kknNJmRN4iP1R7bTQ+v3GJkZBd6mui8ZsAZE=
github.com/btcsuite/btcd/btcec/v2 v2.1.3/go.mod h1:ctjw4H1kknNJmRN4iP1R7bTQ+v3GJkZBd6mui8ZsAZE=
github.com/bmatsuo/lmdb-go v1.8.0 h1:ohf3Q4xjXZBKh4AayUY4bb2CXuhRAI8BYGlJq08EfNA=
github.com/bmatsuo/lmdb-go v1.8.0/go.mod h1:wWPZmKdOAZsl4qOqkowQ1aCrFie1HU8gWloHMCeAUdM=
github.com/btcsuite/btcd/btcec/v2 v2.3.2 h1:5n0X6hX0Zk+6omWcihdYvdAlGf2DfasC0GMf7DClJ3U=
github.com/btcsuite/btcd/btcec/v2 v2.3.2/go.mod h1:zYzJ8etWJQIv1Ogk7OzpWjowwOdXY1W/17j2MW85J04=
github.com/btcsuite/btcd/btcutil v1.0.0/go.mod h1:Uoxwv0pqYWhD//tfTiipkxNfdhG9UrLwaeswfjfdF0A=
github.com/btcsuite/btcd/btcutil v1.1.0/go.mod h1:5OapHB7A2hBBWLm48mmw4MOHNJCcUBTwmWH/0Jn8VHE=
github.com/btcsuite/btcd/btcutil v1.1.1/go.mod h1:nbKlBMNm9FGsdvKvu0essceubPiAcI57pYBNnsLAa34=
github.com/btcsuite/btcd/btcutil v1.1.3 h1:xfbtw8lwpp0G6NwSHb+UE67ryTFHJAiNuipusjXSohQ=
github.com/btcsuite/btcd/btcutil v1.1.3/go.mod h1:UR7dsSJzJUfMmFiiLlIrMq1lS9jh9EdCV7FStZSnpi0=
github.com/btcsuite/btcd/btcutil/psbt v1.1.4 h1:Edx4AfBn+YPam2KP5AobDitulGp4r1Oibm8oruzkMdI=
github.com/btcsuite/btcd/btcutil/psbt v1.1.4/go.mod h1:9AyU6EQVJ9Iw9zPyNT1lcdHd6cnEZdno5wLu5FY74os=
github.com/btcsuite/btcd/chaincfg/chainhash v1.0.0/go.mod h1:7SFka0XMvUgj3hfZtydOrQY2mwhPclbT2snogU7SQQc=
github.com/btcsuite/btcd/chaincfg/chainhash v1.0.1/go.mod h1:7SFka0XMvUgj3hfZtydOrQY2mwhPclbT2snogU7SQQc=
github.com/btcsuite/btcd/chaincfg/chainhash v1.0.2 h1:KdUfX2zKommPRa+PD0sWZUyXe9w277ABlgELO7H04IM=
github.com/btcsuite/btcd/chaincfg/chainhash v1.0.2/go.mod h1:7SFka0XMvUgj3hfZtydOrQY2mwhPclbT2snogU7SQQc=
github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f h1:bAs4lUbRJpnnkd9VhRV3jjAVU7DJVjMaK+IsvSeZvFo=
github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
github.com/btcsuite/btcwallet v0.15.1 h1:SKfh/l2Bgz9sJwHZvfiVbZ8Pl3N/8fFcWWXzsAPz9GU=
github.com/btcsuite/btcwallet v0.15.1/go.mod h1:7OFsQ8ypiRwmr67hE0z98uXgJgXGAihE79jCib9x6ag=
github.com/btcsuite/btcwallet/wallet/txauthor v1.2.3 h1:M2yr5UlULvpqtxUqpMxTME/pA92Z9cpqeyvAFk9lAg0=
github.com/btcsuite/btcwallet/wallet/txauthor v1.2.3/go.mod h1:T2xSiKGpUkSLCh68aF+FMXmKK9mFqNdHl9VaqOr+JjU=
github.com/btcsuite/btcwallet/wallet/txrules v1.2.0 h1:BtEN5Empw62/RVnZ0VcJaVtVlBijnLlJY+dwjAye2Bg=
github.com/btcsuite/btcwallet/wallet/txrules v1.2.0/go.mod h1:AtkqiL7ccKWxuLYtZm8Bu8G6q82w4yIZdgq6riy60z0=
github.com/btcsuite/btcwallet/wallet/txsizes v1.1.0 h1:wZnOolEAeNOHzHTnznw/wQv+j35ftCIokNrnOTOU5o8=
github.com/btcsuite/btcwallet/wallet/txsizes v1.1.0/go.mod h1:pauEU8UuMFiThe5PB3EO+gO5kx87Me5NvdQDsTuq6cs=
github.com/btcsuite/btcwallet/walletdb v1.3.5/go.mod h1:oJDxAEUHVtnmIIBaa22wSBPTVcs6hUp5NKWmI8xDwwU=
github.com/btcsuite/btcwallet/walletdb v1.4.0 h1:/C5JRF+dTuE2CNMCO/or5N8epsrhmSM4710uBQoYPTQ=
github.com/btcsuite/btcwallet/walletdb v1.4.0/go.mod h1:oJDxAEUHVtnmIIBaa22wSBPTVcs6hUp5NKWmI8xDwwU=
github.com/btcsuite/btcwallet/wtxmgr v1.5.0 h1:WO0KyN4l6H3JWnlFxfGR7r3gDnlGT7W2cL8vl6av4SU=
github.com/btcsuite/btcwallet/wtxmgr v1.5.0/go.mod h1:TQVDhFxseiGtZwEPvLgtfyxuNUDsIdaJdshvWzR0HJ4=
github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd h1:R/opQEbFEy9JGkIguV40SvRY1uliPX8ifOvi6ICsFCw=
github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd/go.mod h1:HHNXQzUsZCxOoE+CPiyCTO6x34Zs86zZUiwtpXoGdtg=
github.com/btcsuite/goleveldb v0.0.0-20160330041536-7834afc9e8cd/go.mod h1:F+uVaaLLH7j4eDXPRvw78tMflu7Ie2bzYOH4Y8rRKBY=
github.com/btcsuite/goleveldb v1.0.0/go.mod h1:QiK9vBlgftBg6rWQIj6wFzbPfRjiykIEhBH4obrXJ/I=
github.com/btcsuite/snappy-go v0.0.0-20151229074030-0bdef8d06723/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc=
github.com/btcsuite/snappy-go v1.0.0/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc=
github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 h1:R8vQdOQdZ9Y3SkEwmHoWBmX1DNXhXZqlTpq6s4tyJGc=
github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792/go.mod h1:ghJtEyQwv5/p4Mg4C0fgbePVuGr935/5ddU9Z3TmDRY=
github.com/btcsuite/winsvc v1.0.0 h1:J9B4L7e3oqhXOcm+2IuNApwzQec85lE+QaikUcCs+dk=
github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46fmI40EZs=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cockroachdb/datadriven v1.0.0/go.mod h1:5Ib8Meh+jk1RlHIXej6Pzevx/NLlNvQB9pmSBZErGA4=
github.com/cockroachdb/errors v1.6.1/go.mod h1:tm6FTP5G81vwJ5lC0SizQo374JNCOPrHyXGitRJoDqM=
github.com/cockroachdb/errors v1.8.1 h1:A5+txlVZfOqFBDa4mGz2bUWSp0aHElvHX2bKkdbQu+Y=
github.com/cockroachdb/errors v1.8.1/go.mod h1:qGwQn6JmZ+oMjuLwjWzUNqblqk0xl4CVV3SQbGwK7Ac=
github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f h1:o/kfcElHqOiXqcou5a3rIlMc7oJbMQkeLk0VQJ7zgqY=
github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f/go.mod h1:i/u985jwjWRlyHXQbwatDASoW0RMlZ/3i9yJHE2xLkI=
github.com/cockroachdb/pebble v0.0.0-20220723153705-3fc374e4dc66 h1:zB1MHj8vfz6QDMSkO8ASmNZW8JRqDMqEukXBRVIPzjM=
github.com/cockroachdb/pebble v0.0.0-20220723153705-3fc374e4dc66/go.mod h1:890yq1fUb9b6dGNwssgeUO5vQV9qfXnCPxAJhBQfXw0=
github.com/cockroachdb/redact v1.0.8 h1:8QG/764wK+vmEYoOlfobpe12EQcS81ukx/a4hdVMxNw=
github.com/cockroachdb/redact v1.0.8/go.mod h1:BVNblN9mBWFyMyqK1k3AAiSxhvhfK2oOZZ2lK+dpvRg=
github.com/cockroachdb/sentry-go v0.6.1-cockroachdb.2 h1:IKgmqgMQlVJIZj19CdocBeSfSaiCbEBZGKODaixqtHM=
github.com/cockroachdb/sentry-go v0.6.1-cockroachdb.2/go.mod h1:8BT+cPK6xvFOcRlk0R8eg+OTkcqI6baNH4xAkpiYVvQ=
github.com/codegangsta/inject v0.0.0-20150114235600-33e0aa1cb7c0/go.mod h1:4Zcjuz89kmFXt9morQgcfYZAYZ5n8WHjt81YYWIwtTM=
github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
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github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gonum.org/v1/gonum v0.0.0-20180816165407-929014505bf4/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
gonum.org/v1/gonum v0.8.2 h1:CCXrcPKiGGotvnN6jfUsKk4rRqm7q09/YbKb5xCEvtM=
gonum.org/v1/gonum v0.8.2/go.mod h1:oe/vMfY3deqTw+1EZJhuvEW2iwGF1bW9wwu7XCu0+v0=
gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
gonum.org/v1/plot v0.0.0-20190515093506-e2840ee46a6b/go.mod h1:Wt8AAjI+ypCyYX3nZBvf6cAIx93T+c/OS2HFAYskSZc=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180518175338-11a468237815/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190201180003-4b09977fb922/go.mod h1:L3J43x8/uS+qIUoksaLKe6OS3nUKxOKuIFz1sl2/jx4=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20210617175327-b9e0b3197ced h1:c5geK1iMU3cDKtFrCVQIcjR3W+JOZMuhIyICMCTbtus=
google.golang.org/grpc v1.12.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
google.golang.org/grpc v1.18.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
gopkg.in/go-playground/validator.v8 v8.18.2/go.mod h1:RX2a/7Ha8BgOhfk7j780h4/u/RRjR0eouCJSH80/M2Y=
gopkg.in/mgo.v2 v2.0.0-20180705113604-9856a29383ce/go.mod h1:yeKp02qBN3iKW1OzL3MGk2IdtZzaj7SFntXj72NppTA=
gopkg.in/natefinch/lumberjack.v2 v2.0.0 h1:1Lc07Kr7qY4U2YPouBjpCLxpiyxIVoxqXgkXLknAOE8=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=

View File

@@ -1,4 +1,4 @@
package relayer
package khatru
import (
"context"
@@ -6,86 +6,72 @@ import (
"crypto/sha256"
"encoding/hex"
"encoding/json"
"fmt"
"net/http"
"sync"
"time"
"github.com/fasthttp/websocket"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nip11"
"github.com/nbd-wtf/go-nostr/nip42"
"golang.org/x/exp/slices"
)
// TODO: consider moving these to Server as config params
const (
// Time allowed to write a message to the peer.
writeWait = 10 * time.Second
// Time allowed to read the next pong message from the peer.
pongWait = 60 * time.Second
// Send pings to peer with this period. Must be less than pongWait.
pingPeriod = pongWait / 2
// Maximum message size allowed from peer.
maxMessageSize = 512000
)
// TODO: consider moving these to Server as config params
var upgrader = websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
CheckOrigin: func(r *http.Request) bool { return true },
// ServeHTTP implements http.Handler interface.
func (rl *Relay) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if r.Header.Get("Upgrade") == "websocket" {
rl.HandleWebsocket(w, r)
} else if r.Header.Get("Accept") == "application/nostr+json" {
rl.HandleNIP11(w, r)
} else {
rl.serveMux.ServeHTTP(w, r)
}
}
func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
func (rl *Relay) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
store := s.relay.Storage(ctx)
advancedDeleter, _ := store.(AdvancedDeleter)
conn, err := upgrader.Upgrade(w, r, nil)
conn, err := rl.upgrader.Upgrade(w, r, nil)
if err != nil {
s.Log.Errorf("failed to upgrade websocket: %v", err)
rl.Log.Printf("failed to upgrade websocket: %v\n", err)
return
}
s.clientsMu.Lock()
defer s.clientsMu.Unlock()
s.clients[conn] = struct{}{}
ticker := time.NewTicker(pingPeriod)
rl.clientsMu.Lock()
defer rl.clientsMu.Unlock()
rl.clients[conn] = struct{}{}
ticker := time.NewTicker(rl.PingPeriod)
// NIP-42 challenge
challenge := make([]byte, 8)
rand.Read(challenge)
ws := &WebSocket{
conn: conn,
challenge: hex.EncodeToString(challenge),
conn: conn,
Challenge: hex.EncodeToString(challenge),
WaitingForAuth: make(chan struct{}),
}
// reader
go func() {
defer func() {
ticker.Stop()
s.clientsMu.Lock()
if _, ok := s.clients[conn]; ok {
rl.clientsMu.Lock()
if _, ok := rl.clients[conn]; ok {
conn.Close()
delete(s.clients, conn)
delete(rl.clients, conn)
removeListener(ws)
}
s.clientsMu.Unlock()
rl.clientsMu.Unlock()
}()
conn.SetReadLimit(maxMessageSize)
conn.SetReadDeadline(time.Now().Add(pongWait))
conn.SetReadLimit(rl.MaxMessageSize)
conn.SetReadDeadline(time.Now().Add(rl.PongWait))
conn.SetPongHandler(func(string) error {
conn.SetReadDeadline(time.Now().Add(pongWait))
conn.SetReadDeadline(time.Now().Add(rl.PongWait))
return nil
})
// NIP-42 auth challenge
if _, ok := s.relay.(Auther); ok {
ws.WriteJSON(nostr.AuthEnvelope{Challenge: &ws.challenge})
for _, onconnect := range rl.OnConnect {
onconnect(ctx)
}
for {
@@ -97,7 +83,7 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
websocket.CloseNoStatusReceived, // 1005
websocket.CloseAbnormalClosure, // 1006
) {
s.Log.Warningf("unexpected close error from %s: %v", r.Header.Get("X-Forwarded-For"), err)
rl.Log.Printf("unexpected close error from %s: %v\n", r.Header.Get("X-Forwarded-For"), err)
}
break
}
@@ -109,12 +95,6 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
go func(message []byte) {
ctx = context.Background()
var notice string
defer func() {
if notice != "" {
ws.WriteJSON(nostr.NoticeEnvelope(notice))
}
}()
var request []json.RawMessage
if err := json.Unmarshal(message, &request); err != nil {
@@ -123,7 +103,7 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
}
if len(request) < 2 {
notice = "request has less than 2 parameters"
ws.WriteJSON(nostr.NoticeEnvelope("request has less than 2 parameters"))
return
}
@@ -135,7 +115,7 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
// it's a new event
var evt nostr.Event
if err := json.Unmarshal(request[1], &evt); err != nil {
notice = "failed to decode event: " + err.Error()
ws.WriteJSON(nostr.NoticeEnvelope("failed to decode event: " + err.Error()))
return
}
@@ -157,89 +137,63 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
return
}
var ok bool
if evt.Kind == 5 {
// event deletion -- nip09
for _, tag := range evt.Tags {
if len(tag) >= 2 && tag[0] == "e" {
if advancedDeleter != nil {
advancedDeleter.BeforeDelete(ctx, tag[1], evt.PubKey)
}
if err := store.DeleteEvent(ctx, tag[1], evt.PubKey); err != nil {
reason := fmt.Sprintf("error: %s", err.Error())
ws.WriteJSON(nostr.OKEnvelope{EventID: evt.ID, OK: false, Reason: &reason})
return
}
if advancedDeleter != nil {
advancedDeleter.AfterDelete(tag[1], evt.PubKey)
}
}
}
return
err = rl.handleDeleteRequest(ctx, &evt)
} else {
err = rl.AddEvent(ctx, &evt)
}
ok, message := AddEvent(ctx, s.relay, &evt)
var reason *string
if message != "" {
reason = &message
if err == nil {
ok = true
} else {
msg := err.Error()
reason = &msg
}
ws.WriteJSON(nostr.OKEnvelope{EventID: evt.ID, OK: ok, Reason: reason})
case "COUNT":
counter, ok := store.(EventCounter)
if !ok {
notice = "restricted: this relay does not support NIP-45"
if rl.CountEvents == nil {
ws.WriteJSON(nostr.NoticeEnvelope("this relay does not support NIP-45"))
return
}
var id string
json.Unmarshal(request[1], &id)
if id == "" {
notice = "COUNT has no <id>"
ws.WriteJSON(nostr.NoticeEnvelope("COUNT has no <id>"))
return
}
total := int64(0)
var total int64
filters := make(nostr.Filters, len(request)-2)
for i, filterReq := range request[2:] {
if err := json.Unmarshal(filterReq, &filters[i]); err != nil {
notice = "failed to decode filter"
return
ws.WriteJSON(nostr.NoticeEnvelope("failed to decode filter"))
continue
}
filter := &filters[i]
filter := filters[i]
// prevent kind-4 events from being returned to unauthed users,
// only when authentication is a thing
if _, ok := s.relay.(Auther); ok {
if slices.Contains(filter.Kinds, 4) {
senders := filter.Authors
receivers, _ := filter.Tags["p"]
switch {
case ws.authed == "":
// not authenticated
notice = "restricted: this relay does not serve kind-4 to unauthenticated users, does your client implement NIP-42?"
return
case len(senders) == 1 && len(receivers) < 2 && (senders[0] == ws.authed):
// allowed filter: ws.authed is sole sender (filter specifies one or all receivers)
case len(receivers) == 1 && len(senders) < 2 && (receivers[0] == ws.authed):
// allowed filter: ws.authed is sole receiver (filter specifies one or all senders)
default:
// restricted filter: do not return any events,
// even if other elements in filters array were not restricted).
// client should know better.
notice = "restricted: authenticated user does not have authorization for requested filters."
return
}
for _, reject := range rl.RejectFilter {
if rejecting, msg := reject(ctx, filter); rejecting {
ws.WriteJSON(nostr.NoticeEnvelope(msg))
continue
}
}
for _, reject := range rl.RejectCountFilter {
if rejecting, msg := reject(ctx, filter); rejecting {
ws.WriteJSON(nostr.NoticeEnvelope(msg))
continue
}
}
count, err := counter.CountEvents(ctx, filter)
if err != nil {
s.Log.Errorf("store: %v", err)
continue
for _, count := range rl.CountEvents {
res, err := count(ctx, filter)
if err != nil {
ws.WriteJSON(nostr.NoticeEnvelope(err.Error()))
}
total += res
}
total += count
}
ws.WriteJSON([]interface{}{"COUNT", id, map[string]int64{"count": total}})
@@ -247,91 +201,79 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
var id string
json.Unmarshal(request[1], &id)
if id == "" {
notice = "REQ has no <id>"
ws.WriteJSON(nostr.NoticeEnvelope("REQ has no <id>"))
return
}
filters := make(nostr.Filters, len(request)-2)
eose := sync.WaitGroup{}
eose.Add(len(request[2:]))
for i, filterReq := range request[2:] {
if err := json.Unmarshal(
filterReq,
&filters[i],
); err != nil {
notice = "failed to decode filter"
return
}
filter := &filters[i]
// prevent kind-4 events from being returned to unauthed users,
// only when authentication is a thing
if _, ok := s.relay.(Auther); ok {
if slices.Contains(filter.Kinds, 4) {
senders := filter.Authors
receivers, _ := filter.Tags["p"]
switch {
case ws.authed == "":
// not authenticated
notice = "restricted: this relay does not serve kind-4 to unauthenticated users, does your client implement NIP-42?"
return
case len(senders) == 1 && len(receivers) < 2 && (senders[0] == ws.authed):
// allowed filter: ws.authed is sole sender (filter specifies one or all receivers)
case len(receivers) == 1 && len(senders) < 2 && (receivers[0] == ws.authed):
// allowed filter: ws.authed is sole receiver (filter specifies one or all senders)
default:
// restricted filter: do not return any events,
// even if other elements in filters array were not restricted).
// client should know better.
notice = "restricted: authenticated user does not have authorization for requested filters."
return
}
}
}
events, err := store.QueryEvents(ctx, filter)
if err != nil {
s.Log.Errorf("store: %v", err)
ws.WriteJSON(nostr.NoticeEnvelope("failed to decode filter"))
eose.Done()
continue
}
// ensures the client won't be bombarded with events in case Storage doesn't do limits right
if filter.Limit == 0 {
filter.Limit = 9999999999
}
i := 0
for event := range events {
ws.WriteJSON(nostr.EventEnvelope{SubscriptionID: &id, Event: *event})
i++
if i > filter.Limit {
break
filter := filters[i]
for _, reject := range rl.RejectCountFilter {
if rejecting, msg := reject(ctx, filter); rejecting {
ws.WriteJSON(nostr.NoticeEnvelope(msg))
eose.Done()
continue
}
}
// exhaust the channel (in case we broke out of it early) so it is closed by the storage
for range events {
eose.Add(len(rl.QueryEvents))
for _, query := range rl.QueryEvents {
ch, err := query(ctx, filter)
if err != nil {
ws.WriteJSON(nostr.NoticeEnvelope(err.Error()))
eose.Done()
continue
}
go func(ch chan *nostr.Event) {
for event := range ch {
ws.WriteJSON(nostr.EventEnvelope{SubscriptionID: &id, Event: *event})
}
eose.Done()
}(ch)
}
eose.Done()
}
ws.WriteJSON(nostr.EOSEEnvelope(id))
go func() {
eose.Wait()
ws.WriteJSON(nostr.EOSEEnvelope(id))
}()
setListener(id, ws, filters)
case "CLOSE":
var id string
json.Unmarshal(request[1], &id)
if id == "" {
notice = "CLOSE has no <id>"
ws.WriteJSON(nostr.NoticeEnvelope("CLOSE has no <id>"))
return
}
removeListenerId(ws, id)
case "AUTH":
if auther, ok := s.relay.(Auther); ok {
if rl.ServiceURL != "" {
var evt nostr.Event
if err := json.Unmarshal(request[1], &evt); err != nil {
notice = "failed to decode auth event: " + err.Error()
ws.WriteJSON(nostr.NoticeEnvelope("failed to decode auth event: " + err.Error()))
return
}
if pubkey, ok := nip42.ValidateAuthEvent(&evt, ws.challenge, auther.ServiceURL()); ok {
ws.authed = pubkey
if pubkey, ok := nip42.ValidateAuthEvent(&evt, ws.Challenge, rl.ServiceURL); ok {
ws.Authed = pubkey
close(ws.WaitingForAuth)
ctx = context.WithValue(ctx, AUTH_CONTEXT_KEY, pubkey)
ws.WriteJSON(nostr.OKEnvelope{EventID: evt.ID, OK: true})
} else {
@@ -339,12 +281,6 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
ws.WriteJSON(nostr.OKEnvelope{EventID: evt.ID, OK: false, Reason: &reason})
}
}
default:
if cwh, ok := s.relay.(CustomWebSocketHandler); ok {
cwh.HandleUnknownType(ws, typ, request)
} else {
notice = "unknown message type " + typ
}
}
}(message)
}
@@ -362,7 +298,7 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
case <-ticker.C:
err := ws.WriteMessage(websocket.PingMessage, nil)
if err != nil {
s.Log.Errorf("error writing ping: %v; closing websocket", err)
rl.Log.Printf("error writing ping: %v; closing websocket\n", err)
return
}
}
@@ -370,31 +306,29 @@ func (s *Server) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
}()
}
func (s *Server) HandleNIP11(w http.ResponseWriter, r *http.Request) {
func (rl *Relay) HandleNIP11(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
supportedNIPs := []int{9, 11, 12, 15, 16, 20, 33}
if _, ok := s.relay.(Auther); ok {
if rl.ServiceURL != "" {
supportedNIPs = append(supportedNIPs, 42)
}
if storage, ok := s.relay.(Storage); ok && storage != nil {
if _, ok = storage.(EventCounter); ok {
supportedNIPs = append(supportedNIPs, 45)
}
if rl.CountEvents != nil {
supportedNIPs = append(supportedNIPs, 45)
}
info := nip11.RelayInformationDocument{
Name: s.relay.Name(),
Description: "relay powered by the relayer framework",
PubKey: "~",
Contact: "~",
Name: rl.Name,
Description: rl.Description,
PubKey: rl.PubKey,
Contact: rl.Contact,
SupportedNIPs: supportedNIPs,
Software: "https://github.com/fiatjaf/relayer",
Version: "~",
Software: "https://github.com/trailriver/khatru",
Version: "n/a",
}
if ifmer, ok := s.relay.(Informationer); ok {
info = ifmer.GetNIP11InformationDocument()
for _, edit := range rl.EditInformation {
edit(r.Context(), &info)
}
json.NewEncoder(w).Encode(info)

View File

@@ -1,96 +0,0 @@
package relayer
import (
"context"
"encoding/json"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nip11"
)
// Relay is the main interface for implementing a nostr relay.
type Relay interface {
// Name is used as the "name" field in NIP-11 and as a prefix in default Server logging.
// For other NIP-11 fields, see [Informationer].
Name() string
// Init is called at the very beginning by [Server.Start], allowing a relay
// to initialize its internal resources.
// Also see [Storage.Init].
Init() error
// AcceptEvent is called for every nostr event received by the server.
// If the returned value is true, the event is passed on to [Storage.SaveEvent].
// Otherwise, the server responds with a negative and "blocked" message as described
// in NIP-20.
AcceptEvent(context.Context, *nostr.Event) bool
// Storage returns the relay storage implementation.
Storage(context.Context) Storage
}
// Auther is the interface for implementing NIP-42.
// ServiceURL() returns the URL used to verify the "AUTH" event from clients.
type Auther interface {
ServiceURL() string
}
type Injector interface {
InjectEvents() chan nostr.Event
}
// Informationer is called to compose NIP-11 response to an HTTP request
// with application/nostr+json mime type.
// See also [Relay.Name].
type Informationer interface {
GetNIP11InformationDocument() nip11.RelayInformationDocument
}
// CustomWebSocketHandler, if implemented, is passed nostr message types unrecognized
// by the server.
// The server handles "EVENT", "REQ" and "CLOSE" messages, as described in NIP-01.
type CustomWebSocketHandler interface {
HandleUnknownType(ws *WebSocket, typ string, request []json.RawMessage)
}
// ShutdownAware is called during the server shutdown.
// See [Server.Shutdown] for details.
type ShutdownAware interface {
OnShutdown(context.Context)
}
// Logger is what [Server] uses to log messages.
type Logger interface {
Infof(format string, v ...any)
Warningf(format string, v ...any)
Errorf(format string, v ...any)
}
// Storage is a persistence layer for nostr events handled by a relay.
type Storage interface {
// Init is called at the very beginning by [Server.Start], after [Relay.Init],
// allowing a storage to initialize its internal resources.
Init() error
// QueryEvents is invoked upon a client's REQ as described in NIP-01.
// it should return a channel with the events as they're recovered from a database.
// the channel should be closed after the events are all delivered.
QueryEvents(ctx context.Context, filter *nostr.Filter) (chan *nostr.Event, error)
// DeleteEvent is used to handle deletion events, as per NIP-09.
DeleteEvent(ctx context.Context, id string, pubkey string) error
// SaveEvent is called once Relay.AcceptEvent reports true.
SaveEvent(ctx context.Context, event *nostr.Event) error
}
// AdvancedDeleter methods are called before and after [Storage.DeleteEvent].
type AdvancedDeleter interface {
BeforeDelete(ctx context.Context, id string, pubkey string)
AfterDelete(id string, pubkey string)
}
// AdvancedSaver methods are called before and after [Storage.SaveEvent].
type AdvancedSaver interface {
BeforeSave(context.Context, *nostr.Event)
AfterSave(*nostr.Event)
}
type EventCounter interface {
CountEvents(ctx context.Context, filter *nostr.Filter) (int64, error)
}

View File

@@ -1,4 +1,4 @@
package relayer
package khatru
import (
"sync"

View File

@@ -1,6 +0,0 @@
package relayer
type Notice struct {
Kind string `json:"kind"`
Message string `json:"message"`
}

22
plugins/events.go Normal file
View File

@@ -0,0 +1,22 @@
package plugins
import (
"context"
"github.com/nbd-wtf/go-nostr"
)
func PreventTooManyIndexableTags(max int) func(context.Context, *nostr.Event) (bool, string) {
return func(ctx context.Context, event *nostr.Event) (reject bool, msg string) {
ntags := 0
for _, tag := range event.Tags {
if len(tag) > 0 && len(tag[0]) == 1 {
ntags++
}
}
if ntags > max {
return true, "too many indexable tags"
}
return false, ""
}
}

33
plugins/filters.go Normal file
View File

@@ -0,0 +1,33 @@
package plugins
import (
"context"
"fmt"
"github.com/nbd-wtf/go-nostr"
)
func NoPrefixFilters(ctx context.Context, filter nostr.Filter) (reject bool, msg string) {
for _, id := range filter.IDs {
if len(id) != 64 {
return true, fmt.Sprintf("filters can only contain full ids")
}
}
for _, pk := range filter.Authors {
if len(pk) != 64 {
return true, fmt.Sprintf("filters can only contain full pubkeys")
}
}
return false, ""
}
func NoComplexFilters(ctx context.Context, filter nostr.Filter) (reject bool, msg string) {
items := len(filter.Tags) + len(filter.Kinds)
if items > 4 && len(filter.Tags) > 2 {
return true, "too many things to filter for"
}
return false, ""
}

37
plugins/nip04.go Normal file
View File

@@ -0,0 +1,37 @@
package plugins
import (
"context"
"github.com/fiatjaf/khatru"
"github.com/nbd-wtf/go-nostr"
"golang.org/x/exp/slices"
)
func rejectKind04Snoopers(ctx context.Context, filter nostr.Filter) (bool, string) {
// prevent kind-4 events from being returned to unauthed users,
// only when authentication is a thing
if !slices.Contains(filter.Kinds, 4) {
return false, ""
}
ws := khatru.GetConnection(ctx)
senders := filter.Authors
receivers, _ := filter.Tags["p"]
switch {
case ws.Authed == "":
// not authenticated
return true, "restricted: this relay does not serve kind-4 to unauthenticated users, does your client implement NIP-42?"
case len(senders) == 1 && len(receivers) < 2 && (senders[0] == ws.Authed):
// allowed filter: ws.authed is sole sender (filter specifies one or all receivers)
return false, ""
case len(receivers) == 1 && len(senders) < 2 && (receivers[0] == ws.Authed):
// allowed filter: ws.authed is sole receiver (filter specifies one or all senders)
return false, ""
default:
// restricted filter: do not return any events,
// even if other elements in filters array were not restricted).
// client should know better.
return true, "restricted: authenticated user does not have authorization for requested filters."
}
}

View File

@@ -0,0 +1,83 @@
package badgern
import (
"context"
"encoding/binary"
"github.com/dgraph-io/badger/v4"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nson"
)
func (b BadgerBackend) CountEvents(ctx context.Context, filter nostr.Filter) (int64, error) {
var count int64 = 0
queries, extraFilter, since, prefixLen, idxOffset, err := prepareQueries(filter)
if err != nil {
return 0, err
}
err = b.View(func(txn *badger.Txn) error {
// iterate only through keys and in reverse order
opts := badger.DefaultIteratorOptions
opts.PrefetchValues = false
opts.Reverse = true
// actually iterate
for _, q := range queries {
it := txn.NewIterator(opts)
defer it.Close()
for it.Seek(q.startingPoint); it.ValidForPrefix(q.prefix); it.Next() {
item := it.Item()
key := item.Key()
if !q.skipTimestamp {
createdAt := binary.BigEndian.Uint32(key[prefixLen:idxOffset])
if createdAt < since {
break
}
}
idx := make([]byte, 5)
idx[0] = rawEventStorePrefix
copy(idx[1:], key[idxOffset:])
// fetch actual event
item, err := txn.Get(idx)
if err != nil {
if err == badger.ErrDiscardedTxn {
return err
}
panic(err)
}
if extraFilter == nil {
count++
} else {
err = item.Value(func(val []byte) error {
evt := &nostr.Event{}
if err := nson.Unmarshal(string(val), evt); err != nil {
return err
}
// check if this matches the other filters that were not part of the index
if extraFilter == nil || extraFilter.Matches(evt) {
count++
}
return nil
})
if err != nil {
panic(err)
}
}
}
}
return nil
})
return count, err
}

View File

@@ -0,0 +1,78 @@
package badgern
import (
"context"
"encoding/hex"
"github.com/dgraph-io/badger/v4"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nson"
)
func (b *BadgerBackend) DeleteEvent(ctx context.Context, evt *nostr.Event) error {
deletionHappened := false
err := b.Update(func(txn *badger.Txn) error {
idx := make([]byte, 1, 5)
idx[0] = rawEventStorePrefix
// query event by id to get its idx
id, _ := hex.DecodeString(evt.ID)
prefix := make([]byte, 1+32)
copy(prefix[1:], id)
opts := badger.DefaultIteratorOptions
opts.PrefetchValues = false
it := txn.NewIterator(opts)
it.Seek(prefix)
if it.ValidForPrefix(prefix) {
// the key is the last 32 bytes
idx = append(idx, it.Item().Key()[1+32:]...)
}
it.Close()
// if no idx was found, end here, this event doesn't exist
if len(idx) == 1 {
return nil
}
// fetch the event
item, err := txn.Get(idx)
if err != nil {
return err
}
item.Value(func(val []byte) error {
evt := &nostr.Event{}
if err := nson.Unmarshal(string(val), evt); err != nil {
return err
}
// set this so we'll run the GC later
deletionHappened = true
// calculate all index keys we have for this event and delete them
for _, k := range getIndexKeysForEvent(evt, idx[1:]) {
if err := txn.Delete(k); err != nil {
return err
}
}
// delete the raw event
return txn.Delete(idx)
})
return nil
})
if err != nil {
return err
}
// after deleting, run garbage collector
if deletionHappened {
if err := b.RunValueLogGC(0.8); err != nil {
panic(err)
}
}
return nil
}

View File

@@ -0,0 +1,159 @@
package badgern
import (
"encoding/binary"
"encoding/hex"
"github.com/dgraph-io/badger/v4"
"github.com/nbd-wtf/go-nostr"
)
const (
rawEventStorePrefix byte = 0
indexCreatedAtPrefix byte = 1
indexIdPrefix byte = 2
indexKindPrefix byte = 3
indexPubkeyPrefix byte = 4
indexPubkeyKindPrefix byte = 5
indexTagPrefix byte = 6
)
type BadgerBackend struct {
Path string
MaxLimit int
*badger.DB
seq *badger.Sequence
}
func (b *BadgerBackend) Init() error {
db, err := badger.Open(badger.DefaultOptions(b.Path))
if err != nil {
return err
}
b.DB = db
b.seq, err = db.GetSequence([]byte("events"), 1000)
if err != nil {
return err
}
if b.MaxLimit == 0 {
b.MaxLimit = 500
}
// DEBUG: inspecting keys on startup
// db.View(func(txn *badger.Txn) error {
// opts := badger.DefaultIteratorOptions
// opts.PrefetchSize = 10
// it := txn.NewIterator(opts)
// defer it.Close()
// for it.Rewind(); it.Valid(); it.Next() {
// item := it.Item()
// k := item.Key()
// err := item.Value(func(v []byte) error {
// fmt.Println("key:", k)
// return nil
// })
// if err != nil {
// return err
// }
// }
// return nil
// })
return nil
}
func (b BadgerBackend) Close() {
b.DB.Close()
b.seq.Release()
}
func (b BadgerBackend) Serial() []byte {
v, _ := b.seq.Next()
vb := make([]byte, 5)
vb[0] = rawEventStorePrefix
binary.BigEndian.PutUint32(vb[1:], uint32(v))
return vb
}
func getIndexKeysForEvent(evt *nostr.Event, idx []byte) [][]byte {
keys := make([][]byte, 0, 18)
// indexes
{
// ~ by id
id, _ := hex.DecodeString(evt.ID)
k := make([]byte, 1+32+4)
k[0] = indexIdPrefix
copy(k[1:], id)
copy(k[1+32:], idx)
keys = append(keys, k)
}
{
// ~ by pubkey+date
pubkey, _ := hex.DecodeString(evt.PubKey)
k := make([]byte, 1+32+4+4)
k[0] = indexPubkeyPrefix
copy(k[1:], pubkey)
binary.BigEndian.PutUint32(k[1+32:], uint32(evt.CreatedAt))
copy(k[1+32+4:], idx)
keys = append(keys, k)
}
{
// ~ by kind+date
k := make([]byte, 1+2+4+4)
k[0] = indexKindPrefix
binary.BigEndian.PutUint16(k[1:], uint16(evt.Kind))
binary.BigEndian.PutUint32(k[1+2:], uint32(evt.CreatedAt))
copy(k[1+2+4:], idx)
keys = append(keys, k)
}
{
// ~ by pubkey+kind+date
pubkey, _ := hex.DecodeString(evt.PubKey)
k := make([]byte, 1+32+2+4+4)
k[0] = indexPubkeyKindPrefix
copy(k[1:], pubkey)
binary.BigEndian.PutUint16(k[1+32:], uint16(evt.Kind))
binary.BigEndian.PutUint32(k[1+32+2:], uint32(evt.CreatedAt))
copy(k[1+32+2+4:], idx)
keys = append(keys, k)
}
// ~ by tagvalue+date
for _, tag := range evt.Tags {
if len(tag) < 2 || len(tag[0]) != 1 || len(tag[1]) == 0 || len(tag[1]) > 100 {
continue
}
var v []byte
if vb, _ := hex.DecodeString(tag[1]); len(vb) == 32 {
// store value as bytes
v = vb
} else {
v = []byte(tag[1])
}
k := make([]byte, 1+len(v)+4+4)
k[0] = indexTagPrefix
copy(k[1:], v)
binary.BigEndian.PutUint32(k[1+len(v):], uint32(evt.CreatedAt))
copy(k[1+len(v)+4:], idx)
keys = append(keys, k)
}
{
// ~ by date only
k := make([]byte, 1+4+4)
k[0] = indexCreatedAtPrefix
binary.BigEndian.PutUint32(k[1:], uint32(evt.CreatedAt))
copy(k[1+4:], idx)
keys = append(keys, k)
}
return keys
}

View File

@@ -0,0 +1,318 @@
package badgern
import (
"container/heap"
"context"
"encoding/binary"
"encoding/hex"
"fmt"
"github.com/dgraph-io/badger/v4"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nson"
)
type query struct {
i int
prefix []byte
startingPoint []byte
results chan *nostr.Event
skipTimestamp bool
}
type queryEvent struct {
*nostr.Event
query int
}
func (b BadgerBackend) QueryEvents(ctx context.Context, filter nostr.Filter) (chan *nostr.Event, error) {
ch := make(chan *nostr.Event)
queries, extraFilter, since, prefixLen, idxOffset, err := prepareQueries(filter)
if err != nil {
return nil, err
}
go func() {
err := b.View(func(txn *badger.Txn) error {
// iterate only through keys and in reverse order
opts := badger.DefaultIteratorOptions
opts.PrefetchValues = false
opts.Reverse = true
// actually iterate
iteratorClosers := make([]func(), len(queries))
for i, q := range queries {
go func(i int, q query) {
it := txn.NewIterator(opts)
iteratorClosers[i] = it.Close
defer close(q.results)
for it.Seek(q.startingPoint); it.ValidForPrefix(q.prefix); it.Next() {
item := it.Item()
key := item.Key()
if !q.skipTimestamp {
createdAt := binary.BigEndian.Uint32(key[prefixLen:idxOffset])
if createdAt < since {
break
}
}
idx := make([]byte, 5)
idx[0] = rawEventStorePrefix
copy(idx[1:], key[idxOffset:])
// fetch actual event
item, err := txn.Get(idx)
if err != nil {
if err == badger.ErrDiscardedTxn {
return
}
panic(err)
}
err = item.Value(func(val []byte) error {
evt := &nostr.Event{}
if err := nson.Unmarshal(string(val), evt); err != nil {
return err
}
// check if this matches the other filters that were not part of the index
if extraFilter == nil || extraFilter.Matches(evt) {
q.results <- evt
}
return nil
})
if err != nil {
panic(err)
}
}
}(i, q)
}
// max number of events we'll return
limit := b.MaxLimit
if filter.Limit > 0 && filter.Limit < limit {
limit = filter.Limit
}
// receive results and ensure we only return the most recent ones always
emittedEvents := 0
// first pass
emitQueue := make(priorityQueue, 0, len(queries)+limit)
for _, q := range queries {
evt, ok := <-q.results
if ok {
emitQueue = append(emitQueue, &queryEvent{Event: evt, query: q.i})
}
}
// now it's a good time to schedule this
defer func() {
close(ch)
for _, itclose := range iteratorClosers {
itclose()
}
}()
// queue may be empty here if we have literally nothing
if len(emitQueue) == 0 {
return nil
}
heap.Init(&emitQueue)
// iterate until we've emitted all events required
for {
// emit latest event in queue
latest := emitQueue[0]
ch <- latest.Event
// stop when reaching limit
emittedEvents++
if emittedEvents == limit {
break
}
// fetch a new one from query results and replace the previous one with it
if evt, ok := <-queries[latest.query].results; ok {
emitQueue[0].Event = evt
heap.Fix(&emitQueue, 0)
} else {
// if this query has no more events we just remove this and proceed normally
heap.Remove(&emitQueue, 0)
// check if the list is empty and end
if len(emitQueue) == 0 {
break
}
}
}
return nil
})
if err != nil {
panic(err)
}
}()
return ch, nil
}
type priorityQueue []*queryEvent
func (pq priorityQueue) Len() int { return len(pq) }
func (pq priorityQueue) Less(i, j int) bool {
return pq[i].CreatedAt > pq[j].CreatedAt
}
func (pq priorityQueue) Swap(i, j int) {
pq[i], pq[j] = pq[j], pq[i]
}
func (pq *priorityQueue) Push(x any) {
item := x.(*queryEvent)
*pq = append(*pq, item)
}
func (pq *priorityQueue) Pop() any {
old := *pq
n := len(old)
item := old[n-1]
old[n-1] = nil // avoid memory leak
*pq = old[0 : n-1]
return item
}
func prepareQueries(filter nostr.Filter) (
queries []query,
extraFilter *nostr.Filter,
since uint32,
prefixLen int,
idxOffset int,
err error,
) {
var index byte
if len(filter.IDs) > 0 {
index = indexIdPrefix
queries = make([]query, len(filter.IDs))
for i, idHex := range filter.IDs {
prefix := make([]byte, 1+32)
prefix[0] = index
id, _ := hex.DecodeString(idHex)
if len(id) != 32 {
return nil, nil, 0, 0, 0, fmt.Errorf("invalid id '%s'", idHex)
}
copy(prefix[1:], id)
queries[i] = query{i: i, prefix: prefix, skipTimestamp: true}
}
} else if len(filter.Authors) > 0 {
if len(filter.Kinds) == 0 {
index = indexPubkeyPrefix
queries = make([]query, len(filter.Authors))
for i, pubkeyHex := range filter.Authors {
pubkey, _ := hex.DecodeString(pubkeyHex)
if len(pubkey) != 32 {
continue
}
prefix := make([]byte, 1+32)
prefix[0] = index
copy(prefix[1:], pubkey)
queries[i] = query{i: i, prefix: prefix}
}
} else {
index = indexPubkeyKindPrefix
queries = make([]query, len(filter.Authors)*len(filter.Kinds))
i := 0
for _, pubkeyHex := range filter.Authors {
for _, kind := range filter.Kinds {
pubkey, _ := hex.DecodeString(pubkeyHex)
if len(pubkey) != 32 {
return nil, nil, 0, 0, 0, fmt.Errorf("invalid pubkey '%s'", pubkeyHex)
}
prefix := make([]byte, 1+32+2)
prefix[0] = index
copy(prefix[1:], pubkey)
binary.BigEndian.PutUint16(prefix[1+32:], uint16(kind))
queries[i] = query{i: i, prefix: prefix}
i++
}
}
}
extraFilter = &nostr.Filter{Tags: filter.Tags}
} else if len(filter.Tags) > 0 {
index = indexTagPrefix
queries = make([]query, len(filter.Tags))
extraFilter = &nostr.Filter{Kinds: filter.Kinds}
i := 0
for _, values := range filter.Tags {
for _, value := range values {
bv, _ := hex.DecodeString(value)
var size int
if len(bv) == 32 {
// hex tag
size = 32
} else {
// string tag
bv = []byte(value)
size = len(bv)
}
prefix := make([]byte, 1+size)
prefix[0] = index
copy(prefix[1:], bv)
queries[i] = query{i: i, prefix: prefix}
i++
}
}
} else if len(filter.Kinds) > 0 {
index = indexKindPrefix
queries = make([]query, len(filter.Kinds))
for i, kind := range filter.Kinds {
prefix := make([]byte, 1+2)
prefix[0] = index
binary.BigEndian.PutUint16(prefix[1:], uint16(kind))
queries[i] = query{i: i, prefix: prefix}
}
} else {
index = indexCreatedAtPrefix
queries = make([]query, 1)
prefix := make([]byte, 1)
prefix[0] = index
queries[0] = query{i: 0, prefix: prefix}
extraFilter = nil
}
prefixLen = len(queries[0].prefix)
if index == indexIdPrefix {
idxOffset = prefixLen
} else {
idxOffset = prefixLen + 4
}
var until uint32 = 4294967295
if filter.Until != nil {
if fu := uint32(*filter.Until); fu < until {
until = fu + 1
}
}
for i, q := range queries {
queries[i].startingPoint = binary.BigEndian.AppendUint32(q.prefix, uint32(until))
queries[i].results = make(chan *nostr.Event, 12)
}
// this is where we'll end the iteration
if filter.Since != nil {
if fs := uint32(*filter.Since); fs > since {
since = fs
}
}
return queries, extraFilter, since, prefixLen, idxOffset, nil
}

View File

@@ -0,0 +1,32 @@
package badgern
import (
"context"
"github.com/dgraph-io/badger/v4"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nson"
)
func (b *BadgerBackend) SaveEvent(ctx context.Context, evt *nostr.Event) error {
return b.Update(func(txn *badger.Txn) error {
nson, err := nson.Marshal(evt)
if err != nil {
return err
}
idx := b.Serial()
// raw event store
if err := txn.Set(idx, []byte(nson)); err != nil {
return err
}
for _, k := range getIndexKeysForEvent(evt, idx[1:]) {
if err := txn.Set(k, nil); err != nil {
return err
}
}
return nil
})
}

View File

@@ -6,18 +6,14 @@ import (
"encoding/json"
"fmt"
"io"
"os"
"strings"
"time"
"github.com/elastic/go-elasticsearch/v8"
"github.com/elastic/go-elasticsearch/v8/esutil"
"github.com/fiatjaf/relayer/v2"
"github.com/nbd-wtf/go-nostr"
)
var _ relayer.Storage = (*ElasticsearchStorage)(nil)
type IndexedEvent struct {
Event nostr.Event `json:"event"`
ContentSearch string `json:"content_search"`
@@ -49,6 +45,7 @@ var indexMapping = `
`
type ElasticsearchStorage struct {
URL string
IndexName string
es *elasticsearch.Client
@@ -61,8 +58,8 @@ func (ess *ElasticsearchStorage) Init() error {
}
cfg := elasticsearch.Config{}
if x := os.Getenv("ES_URL"); x != "" {
cfg.Addresses = strings.Split(x, ",")
if ess.URL != "" {
cfg.Addresses = strings.Split(ess.URL, ",")
}
es, err := elasticsearch.NewClient(cfg)
if err != nil {
@@ -98,20 +95,13 @@ func (ess *ElasticsearchStorage) Init() error {
return nil
}
func (ess *ElasticsearchStorage) DeleteEvent(ctx context.Context, id string, pubkey string) error {
// first do get by ID and check that pubkeys match
// this is cheaper than doing delete by query, which also doesn't work with bulk indexer.
found, _ := ess.getByID(&nostr.Filter{IDs: []string{id}})
if len(found) == 0 || found[0].PubKey != pubkey {
return nil
}
func (ess *ElasticsearchStorage) DeleteEvent(ctx context.Context, evt *nostr.Event) error {
done := make(chan error)
err := ess.bi.Add(
ctx,
esutil.BulkIndexerItem{
Action: "delete",
DocumentID: id,
DocumentID: evt.ID,
OnSuccess: func(ctx context.Context, item esutil.BulkIndexerItem, res esutil.BulkIndexerResponseItem) {
close(done)
},
@@ -162,50 +152,6 @@ func (ess *ElasticsearchStorage) SaveEvent(ctx context.Context, evt *nostr.Event
done := make(chan error)
// delete replaceable events
deleteIDs := []string{}
queryForDelete := func(filter *nostr.Filter) {
toDelete, _ := ess.QueryEvents(ctx, filter)
for e := range toDelete {
// KindRecommendServer: we can't query ES for exact content match
// so query by kind and loop over results to compare content
if evt.Kind == nostr.KindRecommendServer {
if e.Content == evt.Content {
deleteIDs = append(deleteIDs, e.ID)
}
} else {
deleteIDs = append(deleteIDs, e.ID)
}
}
}
if evt.Kind == nostr.KindSetMetadata || evt.Kind == nostr.KindContactList || evt.Kind == nostr.KindRecommendServer || (10000 <= evt.Kind && evt.Kind < 20000) {
// delete past events from this user
queryForDelete(&nostr.Filter{
Authors: []string{evt.PubKey},
Kinds: []int{evt.Kind},
})
} else if evt.Kind >= 30000 && evt.Kind < 40000 {
// NIP-33
d := evt.Tags.GetFirst([]string{"d"})
if d != nil {
queryForDelete(&nostr.Filter{
Authors: []string{evt.PubKey},
Kinds: []int{evt.Kind},
Tags: nostr.TagMap{
"d": []string{d.Value()},
},
})
}
}
for _, id := range deleteIDs {
ess.bi.Add(
ctx,
esutil.BulkIndexerItem{
Action: "delete",
DocumentID: id,
})
}
// adapted from:
// https://github.com/elastic/go-elasticsearch/blob/main/_examples/bulk/indexer.go#L196
err = ess.bi.Add(

View File

@@ -4,7 +4,6 @@ import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"log"
@@ -33,7 +32,7 @@ type EsCountResult struct {
Count int64
}
func buildDsl(filter *nostr.Filter) ([]byte, error) {
func buildDsl(filter nostr.Filter) ([]byte, error) {
dsl := esquery.Bool()
prefixFilter := func(fieldName string, values []string) {
@@ -74,12 +73,12 @@ func buildDsl(filter *nostr.Filter) ([]byte, error) {
// since
if filter.Since != nil {
dsl.Must(esquery.Range("event.created_at").Gte(filter.Since))
dsl.Must(esquery.Range("event.created_at").Gt(filter.Since))
}
// until
if filter.Until != nil {
dsl.Must(esquery.Range("event.created_at").Lte(filter.Until))
dsl.Must(esquery.Range("event.created_at").Lt(filter.Until))
}
// search
@@ -90,7 +89,7 @@ func buildDsl(filter *nostr.Filter) ([]byte, error) {
return json.Marshal(esquery.Query(dsl))
}
func (ess *ElasticsearchStorage) getByID(filter *nostr.Filter) ([]*nostr.Event, error) {
func (ess *ElasticsearchStorage) getByID(filter nostr.Filter) ([]*nostr.Event, error) {
got, err := ess.es.Mget(
esutil.NewJSONReader(filter),
ess.es.Mget.WithIndex(ess.IndexName))
@@ -118,13 +117,9 @@ func (ess *ElasticsearchStorage) getByID(filter *nostr.Filter) ([]*nostr.Event,
return events, nil
}
func (ess *ElasticsearchStorage) QueryEvents(ctx context.Context, filter *nostr.Filter) (chan *nostr.Event, error) {
func (ess *ElasticsearchStorage) QueryEvents(ctx context.Context, filter nostr.Filter) (chan *nostr.Event, error) {
ch := make(chan *nostr.Event)
if filter == nil {
return nil, errors.New("filter cannot be null")
}
// optimization: get by id
if isGetByID(filter) {
if evts, err := ess.getByID(filter); err == nil {
@@ -182,7 +177,7 @@ func (ess *ElasticsearchStorage) QueryEvents(ctx context.Context, filter *nostr.
return ch, nil
}
func isGetByID(filter *nostr.Filter) bool {
func isGetByID(filter nostr.Filter) bool {
isGetById := len(filter.IDs) > 0 &&
len(filter.Authors) == 0 &&
len(filter.Kinds) == 0 &&
@@ -222,11 +217,7 @@ func toInterfaceSlice(slice interface{}) []interface{} {
return ret
}
func (ess *ElasticsearchStorage) CountEvents(ctx context.Context, filter *nostr.Filter) (int64, error) {
if filter == nil {
return 0, errors.New("filter cannot be null")
}
func (ess *ElasticsearchStorage) CountEvents(ctx context.Context, filter nostr.Filter) (int64, error) {
count := int64(0)
// optimization: get by id

View File

@@ -0,0 +1,91 @@
package lmdbn
import (
"bytes"
"context"
"encoding/binary"
"github.com/bmatsuo/lmdb-go/lmdb"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nson"
)
func (b *LMDBBackend) CountEvents(ctx context.Context, filter nostr.Filter) (int64, error) {
var count int64 = 0
dbi, queries, extraFilter, since, prefixLen, err := b.prepareQueries(filter)
if err != nil {
return 0, err
}
err = b.lmdbEnv.View(func(txn *lmdb.Txn) error {
// actually iterate
for _, q := range queries {
cursor, err := txn.OpenCursor(dbi)
if err != nil {
continue
}
var k []byte
var idx []byte
var iterr error
if _, _, errsr := cursor.Get(q.startingPoint, nil, lmdb.SetRange); errsr != nil {
if operr, ok := errsr.(*lmdb.OpError); !ok || operr.Errno != lmdb.NotFound {
// in this case it's really an error
panic(err)
} else {
// we're at the end and we just want notes before this,
// so we just need to set the cursor the last key, this is not a real error
k, idx, iterr = cursor.Get(nil, nil, lmdb.Last)
}
} else {
// move one back as the first step
k, idx, iterr = cursor.Get(nil, nil, lmdb.Prev)
}
for {
// we already have a k and a v and an err from the cursor setup, so check and use these
if iterr != nil || !bytes.Equal(q.prefix, k[0:prefixLen]) {
break
}
if !q.skipTimestamp {
createdAt := binary.BigEndian.Uint32(k[prefixLen:])
if createdAt < since {
break
}
}
// fetch actual event
val, err := txn.Get(b.rawEventStore, idx)
if err != nil {
panic(err)
}
if extraFilter == nil {
count++
} else {
evt := &nostr.Event{}
if err := nson.Unmarshal(string(val), evt); err != nil {
return err
}
// check if this matches the other filters that were not part of the index
if extraFilter == nil || extraFilter.Matches(evt) {
count++
}
return nil
}
// move one back (we'll look into k and v and err in the next iteration)
k, idx, iterr = cursor.Get(nil, nil, lmdb.Prev)
}
}
return nil
})
return count, err
}

View File

@@ -0,0 +1,50 @@
package lmdbn
import (
"context"
"encoding/hex"
"github.com/bmatsuo/lmdb-go/lmdb"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nson"
)
func (b *LMDBBackend) DeleteEvent(ctx context.Context, evt *nostr.Event) error {
err := b.lmdbEnv.Update(func(txn *lmdb.Txn) error {
id, _ := hex.DecodeString(evt.ID)
idx, err := txn.Get(b.indexId, id)
if operr, ok := err.(*lmdb.OpError); ok && operr.Errno == lmdb.NotFound {
// we already do not have this
return nil
}
if err != nil {
return err
}
// fetch the event
val, err := txn.Get(b.rawEventStore, idx)
if err != nil {
return err
}
evt := &nostr.Event{}
if err := nson.Unmarshal(string(val), evt); err != nil {
return err
}
// calculate all index keys we have for this event and delete them
for _, k := range b.getIndexKeysForEvent(evt) {
if err := txn.Del(k.dbi, k.key, nil); err != nil {
return err
}
}
// delete the raw event
return txn.Del(b.rawEventStore, idx, nil)
})
if err != nil {
return err
}
return nil
}

View File

@@ -0,0 +1,208 @@
package lmdbn
import (
"encoding/binary"
"encoding/hex"
"sync/atomic"
"github.com/bmatsuo/lmdb-go/lmdb"
"github.com/nbd-wtf/go-nostr"
)
const (
maxuint16 = 65535
maxuint32 = 4294967295
)
type LMDBBackend struct {
Path string
MaxLimit int
lmdbEnv *lmdb.Env
rawEventStore lmdb.DBI
indexCreatedAt lmdb.DBI
indexId lmdb.DBI
indexKind lmdb.DBI
indexPubkey lmdb.DBI
indexPubkeyKind lmdb.DBI
indexTag lmdb.DBI
lastId atomic.Uint32
}
func (b *LMDBBackend) Init() error {
if b.MaxLimit == 0 {
b.MaxLimit = 500
}
// open lmdb
env, err := lmdb.NewEnv()
if err != nil {
return err
}
env.SetMaxDBs(7)
env.SetMaxReaders(500)
env.SetMapSize(1 << 38) // ~273GB
err = env.Open(b.Path, lmdb.NoTLS, 0644)
if err != nil {
return err
}
b.lmdbEnv = env
// open each db
if err := b.lmdbEnv.Update(func(txn *lmdb.Txn) error {
if dbi, err := txn.OpenDBI("raw", lmdb.Create); err != nil {
return err
} else {
b.rawEventStore = dbi
return nil
}
}); err != nil {
return err
}
if err := b.lmdbEnv.Update(func(txn *lmdb.Txn) error {
if dbi, err := txn.OpenDBI("created_at", lmdb.Create); err != nil {
return err
} else {
b.indexCreatedAt = dbi
}
if dbi, err := txn.OpenDBI("id", lmdb.Create); err != nil {
return err
} else {
b.indexId = dbi
}
if dbi, err := txn.OpenDBI("kind", lmdb.Create); err != nil {
return err
} else {
b.indexKind = dbi
}
if dbi, err := txn.OpenDBI("pubkey", lmdb.Create); err != nil {
return err
} else {
b.indexPubkey = dbi
}
if dbi, err := txn.OpenDBI("pubkeyKind", lmdb.Create); err != nil {
return err
} else {
b.indexPubkeyKind = dbi
}
if dbi, err := txn.OpenDBI("tag", lmdb.Create); err != nil {
return err
} else {
b.indexTag = dbi
}
return nil
}); err != nil {
return err
}
// get lastId
if err := b.lmdbEnv.View(func(txn *lmdb.Txn) error {
txn.RawRead = true
cursor, err := txn.OpenCursor(b.rawEventStore)
if err != nil {
return err
}
defer cursor.Close()
k, _, err := cursor.Get(nil, nil, lmdb.Last)
if operr, ok := err.(*lmdb.OpError); ok && operr.Errno == lmdb.NotFound {
// nothing found, so we're at zero
return nil
}
if err != nil {
}
b.lastId.Store(binary.BigEndian.Uint32(k))
return nil
}); err != nil {
return err
}
return nil
}
func (b *LMDBBackend) Close() {
b.lmdbEnv.Close()
}
func (b *LMDBBackend) Serial() []byte {
v := b.lastId.Add(1)
vb := make([]byte, 4)
binary.BigEndian.PutUint32(vb[:], uint32(v))
return vb
}
type key struct {
dbi lmdb.DBI
key []byte
}
func (b *LMDBBackend) getIndexKeysForEvent(evt *nostr.Event) []key {
keys := make([]key, 0, 18)
// indexes
{
// ~ by id
k, _ := hex.DecodeString(evt.ID)
keys = append(keys, key{dbi: b.indexId, key: k})
}
{
// ~ by pubkey+date
pubkey, _ := hex.DecodeString(evt.PubKey)
k := make([]byte, 32+4)
copy(k[:], pubkey)
binary.BigEndian.PutUint32(k[32:], uint32(evt.CreatedAt))
keys = append(keys, key{dbi: b.indexPubkey, key: k})
}
{
// ~ by kind+date
k := make([]byte, 2+4)
binary.BigEndian.PutUint16(k[:], uint16(evt.Kind))
binary.BigEndian.PutUint32(k[2:], uint32(evt.CreatedAt))
keys = append(keys, key{dbi: b.indexKind, key: k})
}
{
// ~ by pubkey+kind+date
pubkey, _ := hex.DecodeString(evt.PubKey)
k := make([]byte, 32+2+4)
copy(k[:], pubkey)
binary.BigEndian.PutUint16(k[32:], uint16(evt.Kind))
binary.BigEndian.PutUint32(k[32+2:], uint32(evt.CreatedAt))
keys = append(keys, key{dbi: b.indexPubkeyKind, key: k})
}
// ~ by tagvalue+date
for _, tag := range evt.Tags {
if len(tag) < 2 || len(tag[0]) != 1 || len(tag[1]) == 0 || len(tag[1]) > 100 {
continue
}
var v []byte
if vb, _ := hex.DecodeString(tag[1]); len(vb) == 32 {
// store value as bytes
v = vb
} else {
v = []byte(tag[1])
}
k := make([]byte, len(v)+4)
copy(k[:], v)
binary.BigEndian.PutUint32(k[len(v):], uint32(evt.CreatedAt))
keys = append(keys, key{dbi: b.indexTag, key: k})
}
{
// ~ by date only
k := make([]byte, 4)
binary.BigEndian.PutUint32(k[:], uint32(evt.CreatedAt))
keys = append(keys, key{dbi: b.indexCreatedAt, key: k})
}
return keys
}

View File

@@ -0,0 +1,314 @@
package lmdbn
import (
"bytes"
"container/heap"
"context"
"encoding/binary"
"encoding/hex"
"fmt"
"github.com/bmatsuo/lmdb-go/lmdb"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nson"
)
type query struct {
i int
prefix []byte
startingPoint []byte
results chan *nostr.Event
skipTimestamp bool
}
type queryEvent struct {
*nostr.Event
query int
}
func (b *LMDBBackend) QueryEvents(ctx context.Context, filter nostr.Filter) (chan *nostr.Event, error) {
ch := make(chan *nostr.Event)
dbi, queries, extraFilter, since, prefixLen, err := b.prepareQueries(filter)
if err != nil {
return nil, err
}
go func() {
err := b.lmdbEnv.View(func(txn *lmdb.Txn) error {
// actually iterate
cursorClosers := make([]func(), len(queries))
for i, q := range queries {
go func(i int, q query) {
defer close(q.results)
cursor, err := txn.OpenCursor(dbi)
if err != nil {
return
}
cursorClosers[i] = cursor.Close
var k []byte
var idx []byte
var iterr error
if _, _, errsr := cursor.Get(q.startingPoint, nil, lmdb.SetRange); errsr != nil {
if operr, ok := errsr.(*lmdb.OpError); !ok || operr.Errno != lmdb.NotFound {
// in this case it's really an error
panic(err)
} else {
// we're at the end and we just want notes before this,
// so we just need to set the cursor the last key, this is not a real error
k, idx, iterr = cursor.Get(nil, nil, lmdb.Last)
}
} else {
// move one back as the first step
k, idx, iterr = cursor.Get(nil, nil, lmdb.Prev)
}
for {
select {
case <-ctx.Done():
break
default:
}
// we already have a k and a v and an err from the cursor setup, so check and use these
if iterr != nil || !bytes.Equal(q.prefix, k[0:prefixLen]) {
return
}
if !q.skipTimestamp {
createdAt := binary.BigEndian.Uint32(k[prefixLen:])
if createdAt < since {
break
}
}
// fetch actual event
val, err := txn.Get(b.rawEventStore, idx)
if err != nil {
panic(err)
}
evt := &nostr.Event{}
if err := nson.Unmarshal(string(val), evt); err != nil {
panic(err)
}
// check if this matches the other filters that were not part of the index
if extraFilter == nil || extraFilter.Matches(evt) {
q.results <- evt
}
// move one back (we'll look into k and v and err in the next iteration)
k, idx, iterr = cursor.Get(nil, nil, lmdb.Prev)
}
}(i, q)
}
// max number of events we'll return
limit := b.MaxLimit
if filter.Limit > 0 && filter.Limit < limit {
limit = filter.Limit
}
// receive results and ensure we only return the most recent ones always
emittedEvents := 0
// first pass
emitQueue := make(priorityQueue, 0, len(queries)+limit)
for _, q := range queries {
evt, ok := <-q.results
if ok {
emitQueue = append(emitQueue, &queryEvent{Event: evt, query: q.i})
}
}
// now it's a good time to schedule this
defer func() {
close(ch)
for _, cclose := range cursorClosers {
cclose()
}
}()
// queue may be empty here if we have literally nothing
if len(emitQueue) == 0 {
return nil
}
heap.Init(&emitQueue)
// iterate until we've emitted all events required
for {
// emit latest event in queue
latest := emitQueue[0]
ch <- latest.Event
// stop when reaching limit
emittedEvents++
if emittedEvents >= limit {
break
}
// fetch a new one from query results and replace the previous one with it
if evt, ok := <-queries[latest.query].results; ok {
emitQueue[0].Event = evt
heap.Fix(&emitQueue, 0)
} else {
// if this query has no more events we just remove this and proceed normally
heap.Remove(&emitQueue, 0)
// check if the list is empty and end
if len(emitQueue) == 0 {
break
}
}
}
return nil
})
if err != nil {
panic(err)
}
}()
return ch, nil
}
type priorityQueue []*queryEvent
func (pq priorityQueue) Len() int { return len(pq) }
func (pq priorityQueue) Less(i, j int) bool {
return pq[i].CreatedAt > pq[j].CreatedAt
}
func (pq priorityQueue) Swap(i, j int) {
pq[i], pq[j] = pq[j], pq[i]
}
func (pq *priorityQueue) Push(x any) {
item := x.(*queryEvent)
*pq = append(*pq, item)
}
func (pq *priorityQueue) Pop() any {
old := *pq
n := len(old)
item := old[n-1]
old[n-1] = nil // avoid memory leak
*pq = old[0 : n-1]
return item
}
func (b *LMDBBackend) prepareQueries(filter nostr.Filter) (
dbi lmdb.DBI,
queries []query,
extraFilter *nostr.Filter,
since uint32,
prefixLen int,
err error,
) {
if len(filter.IDs) > 0 {
dbi = b.indexId
queries = make([]query, len(filter.IDs))
for i, idHex := range filter.IDs {
prefix, _ := hex.DecodeString(idHex)
if len(prefix) != 32 {
return dbi, nil, nil, 0, 0, fmt.Errorf("invalid id '%s'", idHex)
}
queries[i] = query{i: i, prefix: prefix, skipTimestamp: true}
}
} else if len(filter.Authors) > 0 {
if len(filter.Kinds) == 0 {
dbi = b.indexPubkey
queries = make([]query, len(filter.Authors))
for i, pubkeyHex := range filter.Authors {
prefix, _ := hex.DecodeString(pubkeyHex)
if len(prefix) != 32 {
return dbi, nil, nil, 0, 0, fmt.Errorf("invalid pubkey '%s'", pubkeyHex)
}
queries[i] = query{i: i, prefix: prefix}
}
} else {
dbi = b.indexPubkeyKind
queries = make([]query, len(filter.Authors)*len(filter.Kinds))
i := 0
for _, pubkeyHex := range filter.Authors {
for _, kind := range filter.Kinds {
pubkey, _ := hex.DecodeString(pubkeyHex)
if len(pubkey) != 32 {
return dbi, nil, nil, 0, 0, fmt.Errorf("invalid pubkey '%s'", pubkeyHex)
}
prefix := make([]byte, 32+2)
copy(prefix[:], pubkey)
binary.BigEndian.PutUint16(prefix[+32:], uint16(kind))
queries[i] = query{i: i, prefix: prefix}
i++
}
}
}
extraFilter = &nostr.Filter{Tags: filter.Tags}
} else if len(filter.Tags) > 0 {
dbi = b.indexTag
queries = make([]query, len(filter.Tags))
extraFilter = &nostr.Filter{Kinds: filter.Kinds}
i := 0
for _, values := range filter.Tags {
for _, value := range values {
bv, _ := hex.DecodeString(value)
var size int
if len(bv) == 32 {
// hex tag
size = 32
} else {
// string tag
bv = []byte(value)
size = len(bv)
}
prefix := make([]byte, size)
copy(prefix[:], bv)
queries[i] = query{i: i, prefix: prefix}
i++
}
}
} else if len(filter.Kinds) > 0 {
dbi = b.indexKind
queries = make([]query, len(filter.Kinds))
for i, kind := range filter.Kinds {
prefix := make([]byte, 2)
binary.BigEndian.PutUint16(prefix[:], uint16(kind))
queries[i] = query{i: i, prefix: prefix}
}
} else {
dbi = b.indexCreatedAt
queries = make([]query, 1)
prefix := make([]byte, 0)
queries[0] = query{i: 0, prefix: prefix}
extraFilter = nil
}
prefixLen = len(queries[0].prefix)
var until uint32 = 4294967295
if filter.Until != nil {
if fu := uint32(*filter.Until); fu < until {
until = fu + 1
}
}
for i, q := range queries {
queries[i].startingPoint = binary.BigEndian.AppendUint32(q.prefix, uint32(until))
queries[i].results = make(chan *nostr.Event, 12)
}
// this is where we'll end the iteration
if filter.Since != nil {
if fs := uint32(*filter.Since); fs > since {
since = fs
}
}
return dbi, queries, extraFilter, since, prefixLen, nil
}

View File

@@ -0,0 +1,38 @@
package lmdbn
import (
"context"
"fmt"
"github.com/bmatsuo/lmdb-go/lmdb"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nson"
)
func (b *LMDBBackend) SaveEvent(ctx context.Context, evt *nostr.Event) error {
// sanity checking
if evt.CreatedAt > maxuint32 || evt.Kind > maxuint16 {
return fmt.Errorf("event with values out of expected boundaries")
}
return b.lmdbEnv.Update(func(txn *lmdb.Txn) error {
nson, err := nson.Marshal(evt)
if err != nil {
return err
}
idx := b.Serial()
// raw event store
if err := txn.Put(b.rawEventStore, idx, []byte(nson), 0); err != nil {
return err
}
for _, k := range b.getIndexKeysForEvent(evt) {
if err := txn.Put(k.dbi, k.key, idx, 0); err != nil {
return err
}
}
return nil
})
}

View File

@@ -0,0 +1,12 @@
package postgresql
import (
"context"
"github.com/nbd-wtf/go-nostr"
)
func (b PostgresBackend) DeleteEvent(ctx context.Context, evt *nostr.Event) error {
_, err := b.DB.ExecContext(ctx, "DELETE FROM event WHERE id = $1", evt.ID)
return err
}

View File

@@ -1,7 +1,6 @@
package postgresql
import (
"github.com/fiatjaf/relayer/v2"
"github.com/jmoiron/sqlx"
"github.com/jmoiron/sqlx/reflectx"
_ "github.com/lib/pq"
@@ -15,8 +14,6 @@ const (
queryTagsLimit = 10
)
var _ relayer.Storage = (*PostgresBackend)(nil)
func (b *PostgresBackend) Init() error {
db, err := sqlx.Connect("postgres", b.DatabaseURL)
if err != nil {

View File

@@ -12,7 +12,7 @@ import (
"github.com/nbd-wtf/go-nostr"
)
func (b PostgresBackend) QueryEvents(ctx context.Context, filter *nostr.Filter) (ch chan *nostr.Event, err error) {
func (b PostgresBackend) QueryEvents(ctx context.Context, filter nostr.Filter) (ch chan *nostr.Event, err error) {
ch = make(chan *nostr.Event)
query, params, err := b.queryEventsSql(filter, false)
@@ -44,7 +44,7 @@ func (b PostgresBackend) QueryEvents(ctx context.Context, filter *nostr.Filter)
return ch, nil
}
func (b PostgresBackend) CountEvents(ctx context.Context, filter *nostr.Filter) (int64, error) {
func (b PostgresBackend) CountEvents(ctx context.Context, filter nostr.Filter) (int64, error) {
query, params, err := b.queryEventsSql(filter, true)
if err != nil {
return 0, err
@@ -57,14 +57,10 @@ func (b PostgresBackend) CountEvents(ctx context.Context, filter *nostr.Filter)
return count, nil
}
func (b PostgresBackend) queryEventsSql(filter *nostr.Filter, doCount bool) (string, []any, error) {
func (b PostgresBackend) queryEventsSql(filter nostr.Filter, doCount bool) (string, []any, error) {
var conditions []string
var params []any
if filter == nil {
return "", nil, fmt.Errorf("filter cannot be null")
}
if filter.IDs != nil {
if len(filter.IDs) > b.QueryIDsLimit {
// too many ids, fail everything
@@ -159,11 +155,11 @@ func (b PostgresBackend) queryEventsSql(filter *nostr.Filter, doCount bool) (str
}
if filter.Since != nil {
conditions = append(conditions, "created_at >= ?")
conditions = append(conditions, "created_at > ?")
params = append(params, filter.Since)
}
if filter.Until != nil {
conditions = append(conditions, "created_at <= ?")
conditions = append(conditions, "created_at < ?")
params = append(params, filter.Until)
}

View File

@@ -0,0 +1,54 @@
package postgresql
import (
"context"
"encoding/json"
"github.com/fiatjaf/khatru"
"github.com/nbd-wtf/go-nostr"
)
func (b *PostgresBackend) SaveEvent(ctx context.Context, evt *nostr.Event) error {
sql, params, _ := saveEventSql(evt)
res, err := b.DB.ExecContext(ctx, sql, params...)
if err != nil {
return err
}
nr, err := res.RowsAffected()
if err != nil {
return err
}
if nr == 0 {
return khatru.ErrDupEvent
}
return nil
}
func (b *PostgresBackend) BeforeSave(ctx context.Context, evt *nostr.Event) {
// do nothing
}
func (b *PostgresBackend) AfterSave(evt *nostr.Event) {
// delete all but the 100 most recent ones for each key
b.DB.Exec(`DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND created_at < (
SELECT created_at FROM event WHERE pubkey = $1
ORDER BY created_at DESC OFFSET 100 LIMIT 1
)`, evt.PubKey, evt.Kind)
}
func saveEventSql(evt *nostr.Event) (string, []any, error) {
const query = `INSERT INTO event (
id, pubkey, created_at, kind, tags, content, sig)
VALUES ($1, $2, $3, $4, $5, $6, $7)
ON CONFLICT (id) DO NOTHING`
var (
tagsj, _ = json.Marshal(evt.Tags)
params = []any{evt.ID, evt.PubKey, evt.CreatedAt, evt.Kind, tagsj, evt.Content, evt.Sig}
)
return query, params, nil
}

View File

@@ -0,0 +1,64 @@
package postgresql
import (
"testing"
"github.com/nbd-wtf/go-nostr"
"github.com/stretchr/testify/assert"
)
func TestSaveEventSql(t *testing.T) {
now := nostr.Now()
tests := []struct {
name string
event *nostr.Event
query string
params []any
err error
}{
{
name: "basic",
event: &nostr.Event{
ID: "id",
PubKey: "pk",
CreatedAt: now,
Kind: nostr.KindTextNote,
Content: "test",
Sig: "sig",
},
query: `INSERT INTO event (
id, pubkey, created_at, kind, tags, content, sig)
VALUES ($1, $2, $3, $4, $5, $6, $7)
ON CONFLICT (id) DO NOTHING`,
params: []any{"id", "pk", now, nostr.KindTextNote, []byte("null"), "test", "sig"},
err: nil,
},
{
name: "tags",
event: &nostr.Event{
ID: "id",
PubKey: "pk",
CreatedAt: now,
Kind: nostr.KindTextNote,
Tags: nostr.Tags{nostr.Tag{"foo", "bar"}},
Content: "test",
Sig: "sig",
},
query: `INSERT INTO event (
id, pubkey, created_at, kind, tags, content, sig)
VALUES ($1, $2, $3, $4, $5, $6, $7)
ON CONFLICT (id) DO NOTHING`,
params: []any{"id", "pk", now, nostr.KindTextNote, []byte("[[\"foo\",\"bar\"]]"), "test", "sig"},
err: nil,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
query, params, err := saveEventSql(tt.event)
assert.Equal(t, clean(tt.query), clean(query))
assert.Equal(t, tt.params, params)
assert.Equal(t, tt.err, err)
})
}
}

View File

@@ -0,0 +1,12 @@
package sqlite3
import (
"context"
"github.com/nbd-wtf/go-nostr"
)
func (b SQLite3Backend) DeleteEvent(ctx context.Context, evt *nostr.Event) error {
_, err := b.DB.ExecContext(ctx, "DELETE FROM event WHERE id = $1", evt.ID)
return err
}

View File

@@ -1,14 +1,11 @@
package sqlite3
import (
"github.com/fiatjaf/relayer/v2"
"github.com/jmoiron/sqlx"
"github.com/jmoiron/sqlx/reflectx"
_ "github.com/mattn/go-sqlite3"
)
var _ relayer.Storage = (*SQLite3Backend)(nil)
func (b *SQLite3Backend) Init() error {
db, err := sqlx.Connect("sqlite3", b.DatabaseURL)
if err != nil {

View File

@@ -12,7 +12,7 @@ import (
"github.com/nbd-wtf/go-nostr"
)
func (b SQLite3Backend) QueryEvents(ctx context.Context, filter *nostr.Filter) (ch chan *nostr.Event, err error) {
func (b SQLite3Backend) QueryEvents(ctx context.Context, filter nostr.Filter) (ch chan *nostr.Event, err error) {
ch = make(chan *nostr.Event)
query, params, err := queryEventsSql(filter, false)
@@ -44,7 +44,7 @@ func (b SQLite3Backend) QueryEvents(ctx context.Context, filter *nostr.Filter) (
return ch, nil
}
func (b SQLite3Backend) CountEvents(ctx context.Context, filter *nostr.Filter) (int64, error) {
func (b SQLite3Backend) CountEvents(ctx context.Context, filter nostr.Filter) (int64, error) {
query, params, err := queryEventsSql(filter, true)
if err != nil {
return 0, err
@@ -58,14 +58,10 @@ func (b SQLite3Backend) CountEvents(ctx context.Context, filter *nostr.Filter) (
return count, nil
}
func queryEventsSql(filter *nostr.Filter, doCount bool) (string, []any, error) {
func queryEventsSql(filter nostr.Filter, doCount bool) (string, []any, error) {
var conditions []string
var params []any
if filter == nil {
return "", nil, fmt.Errorf("filter cannot be null")
}
if filter.IDs != nil {
if len(filter.IDs) > 500 {
// too many ids, fail everything
@@ -154,11 +150,11 @@ func queryEventsSql(filter *nostr.Filter, doCount bool) (string, []any, error) {
}
if filter.Since != nil {
conditions = append(conditions, "created_at >= ?")
conditions = append(conditions, "created_at > ?")
params = append(params, filter.Since)
}
if filter.Until != nil {
conditions = append(conditions, "created_at <= ?")
conditions = append(conditions, "created_at < ?")
params = append(params, filter.Until)
}
if filter.Search != "" {

View File

@@ -3,30 +3,12 @@ package sqlite3
import (
"context"
"encoding/json"
"fmt"
"github.com/fiatjaf/relayer/v2/storage"
"github.com/fiatjaf/khatru"
"github.com/nbd-wtf/go-nostr"
)
func (b *SQLite3Backend) SaveEvent(ctx context.Context, evt *nostr.Event) error {
// react to different kinds of events
if evt.Kind == nostr.KindSetMetadata || evt.Kind == nostr.KindContactList || (10000 <= evt.Kind && evt.Kind < 20000) {
// delete past events from this user
b.DB.ExecContext(ctx, `DELETE FROM event WHERE pubkey = $1 AND kind = $2`, evt.PubKey, evt.Kind)
} else if evt.Kind == nostr.KindRecommendServer {
// delete past recommend_server events equal to this one
b.DB.ExecContext(ctx, `DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND content = $3`,
evt.PubKey, evt.Kind, evt.Content)
} else if evt.Kind >= 30000 && evt.Kind < 40000 {
// NIP-33
d := evt.Tags.GetFirst([]string{"d"})
if d != nil {
tagsLike := fmt.Sprintf(`%%"d","%s"%%`, d.Value())
b.DB.ExecContext(ctx, `DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND tags LIKE $3`, evt.PubKey, evt.Kind, tagsLike)
}
}
// insert
tagsj, _ := json.Marshal(evt.Tags)
res, err := b.DB.ExecContext(ctx, `
@@ -43,7 +25,7 @@ func (b *SQLite3Backend) SaveEvent(ctx context.Context, evt *nostr.Event) error
}
if nr == 0 {
return storage.ErrDupEvent
return khatru.ErrDupEvent
}
return nil

82
relay.go Normal file
View File

@@ -0,0 +1,82 @@
package khatru
import (
"context"
"log"
"net/http"
"os"
"sync"
"time"
"github.com/fasthttp/websocket"
"github.com/nbd-wtf/go-nostr"
"github.com/nbd-wtf/go-nostr/nip11"
)
func NewRelay() *Relay {
return &Relay{
Log: log.New(os.Stderr, "[khatru-relay] ", log.LstdFlags),
upgrader: websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
CheckOrigin: func(r *http.Request) bool { return true },
},
clients: make(map[*websocket.Conn]struct{}),
serveMux: &http.ServeMux{},
WriteWait: 10 * time.Second,
PongWait: 60 * time.Second,
PingPeriod: 30 * time.Second,
MaxMessageSize: 512000,
}
}
type Relay struct {
Name string
Description string
PubKey string
Contact string
ServiceURL string // required for nip-42
RejectEvent []func(ctx context.Context, event *nostr.Event) (reject bool, msg string)
RejectFilter []func(ctx context.Context, filter nostr.Filter) (reject bool, msg string)
RejectCountFilter []func(ctx context.Context, filter nostr.Filter) (reject bool, msg string)
OverwriteDeletionOutcome []func(ctx context.Context, target *nostr.Event, deletion *nostr.Event) (acceptDeletion bool, msg string)
StoreEvent []func(ctx context.Context, event *nostr.Event) error
DeleteEvent []func(ctx context.Context, event *nostr.Event) error
QueryEvents []func(ctx context.Context, filter nostr.Filter) (chan *nostr.Event, error)
CountEvents []func(ctx context.Context, filter nostr.Filter) (int64, error)
EditInformation []func(ctx context.Context, info *nip11.RelayInformationDocument)
OnAuth []func(ctx context.Context, pubkey string)
OnConnect []func(ctx context.Context)
OnEventSaved []func(ctx context.Context, event *nostr.Event)
// Default logger, as set by NewServer, is a stdlib logger prefixed with "[khatru-relay] ",
// outputting to stderr.
Log *log.Logger
// for establishing websockets
upgrader websocket.Upgrader
// keep a connection reference to all connected clients for Server.Shutdown
clientsMu sync.Mutex
clients map[*websocket.Conn]struct{}
// in case you call Server.Start
Addr string
serveMux *http.ServeMux
httpServer *http.Server
// websocket options
WriteWait time.Duration // Time allowed to write a message to the peer.
PongWait time.Duration // Time allowed to read the next pong message from the peer.
PingPeriod time.Duration // Send pings to peer with this period. Must be less than pongWait.
MaxMessageSize int64 // Maximum message size allowed from peer.
}
func (rl *Relay) RequestAuth(ctx context.Context) {
ws := GetConnection(ctx)
ws.WriteJSON(nostr.AuthEnvelope{Challenge: &ws.Challenge})
}

125
start.go
View File

@@ -1,106 +1,31 @@
package relayer
package khatru
import (
"context"
"fmt"
"log"
"net"
"net/http"
"os"
"strconv"
"sync"
"time"
"github.com/fasthttp/websocket"
"github.com/rs/cors"
)
// Server is a base for package users to implement nostr relays.
// It can serve HTTP requests and websockets, passing control over to a relay implementation.
//
// To implement a relay, it is enough to satisfy [Relay] interface. Other interfaces are
// [Informationer], [CustomWebSocketHandler], [ShutdownAware] and AdvancedXxx types.
// See their respective doc comments.
//
// The basic usage is to call Start or StartConf, which starts serving immediately.
// For a more fine-grained control, use NewServer.
// See [basic/main.go], [whitelisted/main.go], [expensive/main.go] and [rss-bridge/main.go]
// for example implementations.
//
// The following resource is a good starting point for details on what nostr protocol is
// and how it works: https://github.com/nostr-protocol/nostr
type Server struct {
// Default logger, as set by NewServer, is a stdlib logger prefixed with [Relay.Name],
// outputting to stderr.
Log Logger
relay Relay
// keep a connection reference to all connected clients for Server.Shutdown
clientsMu sync.Mutex
clients map[*websocket.Conn]struct{}
// in case you call Server.Start
Addr string
serveMux *http.ServeMux
httpServer *http.Server
func (rl *Relay) Router() *http.ServeMux {
return rl.serveMux
}
func (s *Server) Router() *http.ServeMux {
return s.serveMux
}
// NewServer initializes the relay and its storage using their respective Init methods,
// returning any non-nil errors, and returns a Server ready to listen for HTTP requests.
func NewServer(relay Relay) (*Server, error) {
srv := &Server{
Log: defaultLogger(relay.Name() + ": "),
relay: relay,
clients: make(map[*websocket.Conn]struct{}),
serveMux: &http.ServeMux{},
}
// init the relay
if err := relay.Init(); err != nil {
return nil, fmt.Errorf("relay init: %w", err)
}
if err := relay.Storage(context.Background()).Init(); err != nil {
return nil, fmt.Errorf("storage init: %w", err)
}
// start listening from events from other sources, if any
if inj, ok := relay.(Injector); ok {
go func() {
for event := range inj.InjectEvents() {
notifyListeners(&event)
}
}()
}
return srv, nil
}
// ServeHTTP implements http.Handler interface.
func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if r.Header.Get("Upgrade") == "websocket" {
s.HandleWebsocket(w, r)
} else if r.Header.Get("Accept") == "application/nostr+json" {
s.HandleNIP11(w, r)
} else {
s.serveMux.ServeHTTP(w, r)
}
}
func (s *Server) Start(host string, port int, started ...chan bool) error {
// Start creates an http server and starts listening on given host and port.
func (rl *Relay) Start(host string, port int, started ...chan bool) error {
addr := net.JoinHostPort(host, strconv.Itoa(port))
ln, err := net.Listen("tcp", addr)
if err != nil {
return err
}
s.Addr = ln.Addr().String()
s.httpServer = &http.Server{
Handler: cors.Default().Handler(s),
rl.Addr = ln.Addr().String()
rl.httpServer = &http.Server{
Handler: cors.Default().Handler(rl),
Addr: addr,
WriteTimeout: 2 * time.Second,
ReadTimeout: 2 * time.Second,
@@ -112,7 +37,7 @@ func (s *Server) Start(host string, port int, started ...chan bool) error {
close(started)
}
if err := s.httpServer.Serve(ln); err == http.ErrServerClosed {
if err := rl.httpServer.Serve(ln); err == http.ErrServerClosed {
return nil
} else if err != nil {
return err
@@ -122,34 +47,14 @@ func (s *Server) Start(host string, port int, started ...chan bool) error {
}
// Shutdown sends a websocket close control message to all connected clients.
//
// If the relay is ShutdownAware, Shutdown calls its OnShutdown, passing the context as is.
// Note that the HTTP server make some time to shutdown and so the context deadline,
// if any, may have been shortened by the time OnShutdown is called.
func (s *Server) Shutdown(ctx context.Context) {
s.httpServer.Shutdown(ctx)
func (rl *Relay) Shutdown(ctx context.Context) {
rl.httpServer.Shutdown(ctx)
s.clientsMu.Lock()
defer s.clientsMu.Unlock()
for conn := range s.clients {
rl.clientsMu.Lock()
defer rl.clientsMu.Unlock()
for conn := range rl.clients {
conn.WriteControl(websocket.CloseMessage, nil, time.Now().Add(time.Second))
conn.Close()
delete(s.clients, conn)
}
if f, ok := s.relay.(ShutdownAware); ok {
f.OnShutdown(ctx)
delete(rl.clients, conn)
}
}
func defaultLogger(prefix string) Logger {
l := log.New(os.Stderr, "", log.LstdFlags|log.Lmsgprefix)
l.SetPrefix(prefix)
return stdLogger{l}
}
type stdLogger struct{ log *log.Logger }
func (l stdLogger) Infof(format string, v ...any) { l.log.Printf(format, v...) }
func (l stdLogger) Warningf(format string, v ...any) { l.log.Printf(format, v...) }
func (l stdLogger) Errorf(format string, v ...any) { l.log.Printf(format, v...) }

View File

@@ -1,4 +1,4 @@
package relayer
package khatru
import (
"context"
@@ -88,6 +88,6 @@ func TestServerShutdownWebsocket(t *testing.T) {
err = e
}
if _, ok := err.(wsutil.ClosedError); !ok {
t.Errorf("client.ConnectionError: %v (%T); want wsutil.ClosedError", err, err)
t.Errorf("client.ConnextionError: %v (%T); want wsutil.ClosedError", err, err)
}
}

View File

@@ -1,5 +0,0 @@
package storage
import "errors"
var ErrDupEvent = errors.New("duplicate: event already exists")

View File

@@ -1,8 +0,0 @@
package postgresql
import "context"
func (b PostgresBackend) DeleteEvent(ctx context.Context, id string, pubkey string) error {
_, err := b.DB.ExecContext(ctx, "DELETE FROM event WHERE id = $1 AND pubkey = $2", id, pubkey)
return err
}

View File

@@ -1,89 +0,0 @@
package postgresql
import (
"context"
"encoding/json"
"github.com/fiatjaf/relayer/v2/storage"
"github.com/nbd-wtf/go-nostr"
)
func (b *PostgresBackend) SaveEvent(ctx context.Context, evt *nostr.Event) error {
deleteQuery, deleteParams, shouldDelete := deleteBeforeSaveSql(evt)
if shouldDelete {
_, _ = b.DB.ExecContext(ctx, deleteQuery, deleteParams...)
}
sql, params, _ := saveEventSql(evt)
res, err := b.DB.ExecContext(ctx, sql, params...)
if err != nil {
return err
}
nr, err := res.RowsAffected()
if err != nil {
return err
}
if nr == 0 {
return storage.ErrDupEvent
}
return nil
}
func (b *PostgresBackend) BeforeSave(ctx context.Context, evt *nostr.Event) {
// do nothing
}
func (b *PostgresBackend) AfterSave(evt *nostr.Event) {
// delete all but the 100 most recent ones for each key
b.DB.Exec(`DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND created_at < (
SELECT created_at FROM event WHERE pubkey = $1
ORDER BY created_at DESC OFFSET 100 LIMIT 1
)`, evt.PubKey, evt.Kind)
}
func deleteBeforeSaveSql(evt *nostr.Event) (string, []any, bool) {
// react to different kinds of events
var (
query = ""
params []any
shouldDelete bool
)
if evt.Kind == nostr.KindSetMetadata || evt.Kind == nostr.KindContactList || (10000 <= evt.Kind && evt.Kind < 20000) {
// delete past events from this user
query = `DELETE FROM event WHERE pubkey = $1 AND kind = $2`
params = []any{evt.PubKey, evt.Kind}
shouldDelete = true
} else if evt.Kind == nostr.KindRecommendServer {
// delete past recommend_server events equal to this one
query = `DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND content = $3`
params = []any{evt.PubKey, evt.Kind, evt.Content}
shouldDelete = true
} else if evt.Kind >= 30000 && evt.Kind < 40000 {
// NIP-33
d := evt.Tags.GetFirst([]string{"d"})
if d != nil {
query = `DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND tagvalues && ARRAY[$3]`
params = []any{evt.PubKey, evt.Kind, d.Value()}
shouldDelete = true
}
}
return query, params, shouldDelete
}
func saveEventSql(evt *nostr.Event) (string, []any, error) {
const query = `INSERT INTO event (
id, pubkey, created_at, kind, tags, content, sig)
VALUES ($1, $2, $3, $4, $5, $6, $7)
ON CONFLICT (id) DO NOTHING`
var (
tagsj, _ = json.Marshal(evt.Tags)
params = []any{evt.ID, evt.PubKey, evt.CreatedAt, evt.Kind, tagsj, evt.Content, evt.Sig}
)
return query, params, nil
}

View File

@@ -1,177 +0,0 @@
package postgresql
import (
"testing"
"github.com/nbd-wtf/go-nostr"
"github.com/stretchr/testify/assert"
)
func TestDeleteBeforeSave(t *testing.T) {
var tests = []struct {
name string
event *nostr.Event
query string
params []any
shouldDelete bool
}{
{
name: "set metadata",
event: &nostr.Event{
Kind: nostr.KindSetMetadata,
PubKey: "pk",
},
query: "DELETE FROM event WHERE pubkey = $1 AND kind = $2",
params: []any{"pk", nostr.KindSetMetadata},
shouldDelete: true,
},
{
name: "contact list",
event: &nostr.Event{
Kind: nostr.KindContactList,
PubKey: "pk",
},
query: "DELETE FROM event WHERE pubkey = $1 AND kind = $2",
params: []any{"pk", nostr.KindContactList},
shouldDelete: true,
},
{
name: "recommend server",
event: &nostr.Event{
Kind: nostr.KindRecommendServer,
PubKey: "pk",
Content: "test",
},
query: "DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND content = $3",
params: []any{"pk", nostr.KindRecommendServer, "test"},
shouldDelete: true,
},
{
name: "nip-33",
event: &nostr.Event{
Kind: 31000,
PubKey: "pk",
Tags: nostr.Tags{nostr.Tag{"d", "value"}},
},
query: "DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND tagvalues && ARRAY[$3]",
params: []any{"pk", 31000, "value"},
shouldDelete: true,
},
{
name: "kind > 10000",
event: &nostr.Event{
Kind: 10001,
PubKey: "pk",
},
query: "DELETE FROM event WHERE pubkey = $1 AND kind = $2",
params: []any{"pk", 10001},
shouldDelete: true,
},
{
name: "kind < 20000",
event: &nostr.Event{
Kind: 19999,
PubKey: "pk",
},
query: "DELETE FROM event WHERE pubkey = $1 AND kind = $2",
params: []any{"pk", 19999},
shouldDelete: true,
},
// Should not delete cases
{
name: "kind < 10000",
event: &nostr.Event{
Kind: 9999,
PubKey: "pk",
},
query: "",
params: nil,
shouldDelete: false,
},
{
name: "kind > 21000",
event: &nostr.Event{
Kind: 21000,
PubKey: "pk",
},
query: "",
params: nil,
shouldDelete: false,
},
{
name: "kind 1",
event: &nostr.Event{
Kind: nostr.KindTextNote,
PubKey: "pk",
},
query: "",
params: nil,
shouldDelete: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
query, params, shouldDelete := deleteBeforeSaveSql(tt.event)
assert.Equal(t, tt.query, query)
assert.Equal(t, tt.params, params)
assert.Equal(t, tt.shouldDelete, shouldDelete)
})
}
}
func TestSaveEventSql(t *testing.T) {
now := nostr.Now()
var tests = []struct {
name string
event *nostr.Event
query string
params []any
err error
}{
{
name: "basic",
event: &nostr.Event{
ID: "id",
PubKey: "pk",
CreatedAt: now,
Kind: nostr.KindTextNote,
Content: "test",
Sig: "sig",
},
query: `INSERT INTO event (
id, pubkey, created_at, kind, tags, content, sig)
VALUES ($1, $2, $3, $4, $5, $6, $7)
ON CONFLICT (id) DO NOTHING`,
params: []any{"id", "pk", now, nostr.KindTextNote, []byte("null"), "test", "sig"},
err: nil,
},
{
name: "tags",
event: &nostr.Event{
ID: "id",
PubKey: "pk",
CreatedAt: now,
Kind: nostr.KindTextNote,
Tags: nostr.Tags{nostr.Tag{"foo", "bar"}},
Content: "test",
Sig: "sig",
},
query: `INSERT INTO event (
id, pubkey, created_at, kind, tags, content, sig)
VALUES ($1, $2, $3, $4, $5, $6, $7)
ON CONFLICT (id) DO NOTHING`,
params: []any{"id", "pk", now, nostr.KindTextNote, []byte("[[\"foo\",\"bar\"]]"), "test", "sig"},
err: nil,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
query, params, err := saveEventSql(tt.event)
assert.Equal(t, clean(tt.query), clean(query))
assert.Equal(t, tt.params, params)
assert.Equal(t, tt.err, err)
})
}
}

View File

@@ -1,8 +0,0 @@
package sqlite3
import "context"
func (b SQLite3Backend) DeleteEvent(ctx context.Context, id string, pubkey string) error {
_, err := b.DB.ExecContext(ctx, "DELETE FROM event WHERE id = $1 AND pubkey = $2", id, pubkey)
return err
}

View File

@@ -1,4 +1,4 @@
package relayer
package khatru
import (
"context"

25
utils.go Normal file
View File

@@ -0,0 +1,25 @@
package khatru
import (
"context"
"regexp"
)
const (
AUTH_CONTEXT_KEY = iota
WS_KEY = iota
)
var nip20prefixmatcher = regexp.MustCompile(`^\w+: `)
func GetConnection(ctx context.Context) *WebSocket {
return ctx.Value(WS_KEY).(*WebSocket)
}
func GetAuthed(ctx context.Context) string {
authedPubkey := ctx.Value(AUTH_CONTEXT_KEY)
if authedPubkey == nil {
return ""
}
return authedPubkey.(string)
}

View File

@@ -1,4 +1,4 @@
package relayer
package khatru
import (
"sync"
@@ -11,11 +11,12 @@ type WebSocket struct {
mutex sync.Mutex
// nip42
challenge string
authed string
Challenge string
Authed string
WaitingForAuth chan struct{}
}
func (ws *WebSocket) WriteJSON(any interface{}) error {
func (ws *WebSocket) WriteJSON(any any) error {
ws.mutex.Lock()
defer ws.mutex.Unlock()
return ws.conn.WriteJSON(any)