Include relays in the profile

nostr.go

@@ -127,11 +127,10 @@ func getEvent(ctx context.Context, code string) (*nostr.Event, error) {
 	return nil, fmt.Errorf("couldn't find this %s", prefix)
 }
 
-func getLastNotes(ctx context.Context, code string, options ...int) []*nostr.Event {
+func getLastNotes(ctx context.Context, code string, limit int) []*nostr.Event {
 
-	events_num := 10
-	if len(options) > 0 {
-		events_num = options[0]
+	if limit <= 0 {
+		limit = 10
 	}
 
 	pp := sdk.InputToProfile(ctx, code)
@@ -152,7 +151,7 @@ func getLastNotes(ctx context.Context, code string, options ...int) []*nostr.Eve
 		{
 			Kinds:   []int{nostr.KindTextNote},
 			Authors: []string{pp.PublicKey},
-			Limit:   events_num,
+			Limit:   limit,
 		},
 	})
 	lastNotes := make([]*nostr.Event, 0, 20)

render.go

@@ -54,11 +54,7 @@ func render(w http.ResponseWriter, r *http.Request) {
 
 		// If the protocol is present strip it and redirect
 		if strings.HasPrefix(code, "wss:/") || strings.HasPrefix(code, "ws:/") {
-			hostname := code
-			hostname = strings.TrimPrefix(hostname, "wss://")
-			hostname = strings.TrimPrefix(hostname, "ws://")
-			hostname = strings.TrimPrefix(hostname, "wss:/") // Some browsers replace upfront '//' with '/'
-			hostname = strings.TrimPrefix(hostname, "ws:/")  // Some browsers replace upfront '//' with '/'
+			hostname := trimProtocol(code)
 			http.Redirect(w, r, "/"+hostname, http.StatusFound)
 		}
 
@@ -85,6 +81,7 @@ func render(w http.ResponseWriter, r *http.Request) {
 	author := event
 	var renderableLastNotes []*Event
 	parentNevent := ""
+	authorRelays := []string{}
 
 	if event.Kind == 0 {
 		key := ""
@@ -97,6 +94,13 @@ func render(w http.ResponseWriter, r *http.Request) {
 			key = "ln:" + event.PubKey
 		}
 
+		ctx, cancel := context.WithTimeout(r.Context(), time.Second*4)
+		authorRelays = relaysForPubkey(ctx, event.PubKey)
+		cancel()
+		for i, n := range authorRelays {
+			authorRelays[i] = trimProtocol(n)
+		}
+
 		var lastNotes []*nostr.Event
 
 		if ok := cache.GetJSON(key, &lastNotes); !ok {
@@ -295,6 +299,7 @@ func render(w http.ResponseWriter, r *http.Request) {
 		"kindNIP":         kindNIP,
 		"lastNotes":       renderableLastNotes,
 		"parentNevent":    parentNevent,
+		"authorRelays": authorRelays,
 	}
 
 	// if a mapping is not found fallback to raw

static/styles.css

@@ -366,6 +366,20 @@ iframe {
 .theme--dark .container .column_content .field a.nostr {
   background-color: #42091e;
 }
+.container .column_content .field a.button {
+  border-bottom: 0;
+  border: 1px solid #c9c9c9;
+  border-radius: 8px;
+  padding: 2px 8px;
+  display: inline-block;
+  margin-top: 0.6em;
+  margin-right: 0.2em;
+}
+.container .column_content .field a.button:hover {
+  color: #ffffff;
+  background-color: #e32a6d;
+  border: 1px solid #e32a6d;
+}
 .container .column_content .field .label {
   font-size: 0.8rem;
 }

static/styles.scss

@@ -376,6 +376,20 @@ iframe {
         }
         border-bottom: none;
       }
+      a.button {
+        border-bottom: 0;
+        border: 1px solid $color-base4;
+        border-radius: 8px;
+        padding: 2px 8px;
+        display: inline-block;
+        margin-top: 0.6em;
+        margin-right: 0.2em;
+        &:hover {
+          color: $color-base1;
+          background-color: $color-accent1;
+          border: 1px solid $color-accent1;
+        }
+      }
       .label {
         font-size: 0.8rem;
         @include themed() {

templates/profile.html

@@ -56,6 +56,13 @@
             {{.metadata.LUD16 | escapeString}}
           </div>
 
+          <div class="field">
+            <div class="label">Last seen on these relays</div>
+            {{range $index, $element := .authorRelays}}
+            <a href="/{{$element | escapeString}}" class="button">{{$element}}</a>
+            {{end}}
+          </div>
+
           <div class="field last_update">
             Last update:<br />
             {{.createdAt | escapeString}}

utils.go

@@ -336,3 +336,11 @@ func unique(strSlice []string) []string {
 	}    
 	return list
 }
+
+func trimProtocol(relay string) string {
+	relay = strings.TrimPrefix(relay, "wss://")
+	relay = strings.TrimPrefix(relay, "ws://")
+	relay = strings.TrimPrefix(relay, "wss:/") // Some browsers replace upfront '//' with '/'
+	relay = strings.TrimPrefix(relay, "ws:/")  // Some browsers replace upfront '//' with '/'
+	return relay
+}