initial broken draft of relays page.

main.go

@@ -1,16 +1,50 @@
 package main
 
 import (
+	"embed"
+	"html"
 	"net/http"
 	"os"
+	"text/template"
 
 	"github.com/rs/zerolog"
 )
 
-var log = zerolog.New(os.Stderr).Output(zerolog.ConsoleWriter{Out: os.Stdout}).
-	With().Timestamp().Logger()
+//go:embed static/*
+var static embed.FS
+
+//go:embed templates/*
+var templates embed.FS
+
+var (
+	tmpl            *template.Template
+	templateMapping = make(map[string]string)
+
+	log = zerolog.New(os.Stderr).Output(zerolog.ConsoleWriter{Out: os.Stdout}).With().Timestamp().Logger()
+)
 
 func main() {
+	// initialize templates
+	// use a mapping to expressly link the templates and share them between more kinds/types
+	templateMapping["profile"] = "profile.html"
+	templateMapping["note"] = "note.html"
+	templateMapping["address"] = "other.html"
+	templateMapping["relay"] = "relay.html"
+
+	funcMap := template.FuncMap{
+		"basicFormatting": basicFormatting,
+		"mdToHTML":        mdToHTML,
+		"escapeString":    html.EscapeString,
+		"sanitizeXSS":     sanitizeXSS,
+	}
+
+	tmpl = template.Must(
+		template.New("tmpl").
+			Funcs(funcMap).
+			ParseFS(templates, "templates/*"),
+	)
+
+	// routes
 	http.HandleFunc("/njump/image/", generate)
 	http.HandleFunc("/njump/proxy/", proxy)
 	http.Handle("/njump/static/", http.StripPrefix("/njump/", http.FileServer(http.FS(static))))

render.go

@@ -2,27 +2,18 @@ package main
 
 import (
 	"context"
-	"embed"
 	_ "embed"
 	"encoding/json"
 	"fmt"
-	"html"
 	"net/http"
 	"regexp"
 	"strings"
-	"text/template"
 	"time"
 
 	"github.com/nbd-wtf/go-nostr"
 	"github.com/nbd-wtf/go-nostr/nip19"
 )
 
-//go:embed static/*
-var static embed.FS
-
-//go:embed templates/*
-var templates embed.FS
-
 type Event struct {
 	Nevent       string
 	Content      string
@@ -50,8 +41,15 @@ func render(w http.ResponseWriter, r *http.Request) {
 	hostname := r.Header.Get("X-Forwarded-Host")
 	style := getPreviewStyle(r)
 
+	// code can be a nevent, nprofile, npub or nip05 identifier, in which case we try to fetch the associated event
 	event, err := getEvent(r.Context(), code)
 	if err != nil {
+		// this will fail if code is a relay URL, in which case we will handle it differently
+		if urlMatcher.MatchString(code) {
+			renderRelayPage(w, r)
+			return
+		}
+
 		http.Error(w, "error fetching event: "+err.Error(), 404)
 		return
 	}
@@ -275,30 +273,11 @@ func render(w http.ResponseWriter, r *http.Request) {
 		"parentNevent":    parentNevent,
 	}
 
-	// Use a mapping to expressly link the templates and share them between more kinds/types
-	templateMapping := make(map[string]string)
-	templateMapping["profile"] = "profile.html"
-	templateMapping["note"] = "note.html"
-	templateMapping["address"] = "other.html"
-
-	// If a mapping is not found fallback to raw
+	// if a mapping is not found fallback to raw
 	if templateMapping[typ] == "" {
 		templateMapping[typ] = "other.html"
 	}
 
-	funcMap := template.FuncMap{
-		"basicFormatting": basicFormatting,
-		"mdToHTML":        mdToHTML,
-		"escapeString":    html.EscapeString,
-		"sanitizeXSS":     sanitizeXSS,
-	}
-
-	tmpl := template.Must(
-		template.New("tmpl").
-			Funcs(funcMap).
-			ParseFS(templates, "templates/*"),
-	)
-
 	w.Header().Set("Cache-Control", "max-age=604800")
 	if err := tmpl.ExecuteTemplate(w, templateMapping[typ], params); err != nil {
 		log.Error().Err(err).Msg("error rendering")

render_relay.go

@@ -0,0 +1,75 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/nbd-wtf/go-nostr"
+	"github.com/nbd-wtf/go-nostr/nip11"
+	"github.com/nbd-wtf/go-nostr/nip19"
+)
+
+func renderRelayPage(w http.ResponseWriter, r *http.Request) {
+	code := r.URL.Path[1:]
+
+	hostname := code
+	if strings.HasPrefix(code, "wss://") {
+		hostname = code[6:]
+	}
+	if strings.HasPrefix(code, "ws://") {
+		hostname = code[5:]
+	}
+
+	fmt.Println("hostname", hostname)
+
+	ctx, cancel := context.WithTimeout(r.Context(), time.Second*5)
+	defer cancel()
+
+	// relay metadata
+	info, _ := nip11.Fetch(r.Context(), code)
+	if info == nil {
+		info = &nip11.RelayInformationDocument{
+			Name: hostname,
+		}
+	}
+
+	// last notes
+	var lastNotes []*nostr.Event
+	if relay, err := pool.EnsureRelay(code); err == nil {
+		lastNotes, _ = relay.QuerySync(ctx, nostr.Filter{
+			Kinds: []int{1},
+			Limit: 50,
+		})
+	}
+	renderableLastNotes := make([]*Event, len(lastNotes))
+	for i, n := range lastNotes {
+		nevent, _ := nip19.EncodeEvent(n.ID, []string{}, n.PubKey)
+		date := time.Unix(int64(n.CreatedAt), 0).Format("2006-01-02 15:04:05")
+		renderableLastNotes[i] = &Event{
+			Nevent:       nevent,
+			Content:      n.Content,
+			CreatedAt:    date,
+			ParentNevent: getParentNevent(n),
+		}
+	}
+
+	params := map[string]any{
+		"clients": []ClientReference{
+			{Name: "Coracle", URL: "https://coracle.social/relays/" + hostname},
+		},
+		"type":      "relay",
+		"info":      info,
+		"hostname":  hostname,
+		"proxy":     "https://" + hostname + "/njump/proxy?src=",
+		"lastNotes": renderableLastNotes,
+	}
+
+	w.Header().Set("Cache-Control", "max-age=604800")
+	if err := tmpl.ExecuteTemplate(w, templateMapping["relay"], params); err != nil {
+		log.Error().Err(err).Msg("error rendering")
+		return
+	}
+}

templates/head.html

@@ -55,8 +55,12 @@
   <title>Nostr Address {{.naddr | escapeString }}</title>
   {{end}}
   <!----------->
+  {{ if eq .type "relay" }}
+  <title>Nostr Relay {{.hostname}}</title>
+  {{end}}
+  <!----------->
   {{ if eq .type "other" }}
-  <title>Nostr Event {{.kindID }} - {{.kindDescription | escapeString }}</title>
+  <title>Nostr Event {{.kindID}} - {{.kindDescription | escapeString }}</title>
   {{end}}
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />

templates/profile.html

@@ -63,6 +63,7 @@
 
           <div class="field separator"></div>
 
+          {{if .lastNotes}}
           <div class="field last_notes">
             <h2>Last Notes</h2>
             {{range .lastNotes}}
@@ -75,8 +76,8 @@
             </a>
             {{end}}
           </div>
-
           <div class="field separator"></div>
+          {{end}}
 
           <div class="field advanced-switch-wrapper">
             <input

templates/relay.html

@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html class="theme--default">
+  <meta charset="UTF-8" />
+  {{template "head.html" .}}
+
+  <body class="profile">
+    {{template "top.html" .}}
+
+    <div class="container_wrapper">
+      <div class="container">
+        <div class="column columnA">
+          <div class="info-wrapper">
+            {{.info.Name | escapeString}}
+            <span class="display">{{.info.Description | escapeString}}</span>
+          </div>
+          <div class="pic-wrapper">
+            <img class="pic" src="{{.info.Icon | escapeString}}" />
+          </div>
+        </div>
+
+        <div class="column column_content">
+          <div class="field last_notes">
+            <h2>Last Notes</h2>
+            {{range .lastNotes}}
+            <a href="/{{.Nevent | escapeString}}" class="note">
+              <div class="published_at">{{.CreatedAt | escapeString}}</div>
+              {{if not (eq .ParentNevent "")}}
+              <div class="is_reply">- reply</div>
+              {{end}}
+              <div class="content">{{.Content | escapeString}}</div>
+            </a>
+            {{end}}
+          </div>
+        </div>
+
+        {{template "column_clients.html" .}}
+      </div>
+    </div>
+
+    {{template "footer.html"}}
+
+    <script>
+      {{template "scripts.js"}}
+    </script>
+  </body>
+</html>

utils.go

@@ -92,6 +92,8 @@ var kindNIPS = map[int]string{
 	30078: "78",
 }
 
+var urlMatcher = regexp.MustCompile(`^(wss?:\/\/)?[\w-_.]+\.[\w-_.]+(\/[\/\w]*)?$`)
+
 type ClientReference struct {
 	Name string
 	URL  string