Universal Links: share notes!

Changelog-Added: Added universal link sharing of notes

damus/Nostr/NostrLink.swift

@@ -80,7 +80,32 @@ func parse_nostr_ref_uri(_ p: Parser) -> ReferencedId? {
     return ReferencedId(ref_id: pk, relay_id: nil, key: typ)
 }
 
+func decode_universal_link(_ s: String) -> NostrLink? {
+    var uri = s.replacingOccurrences(of: "https://damus.io/r/", with: "")
+    uri = uri.replacingOccurrences(of: "https://damus.io/", with: "")
+    uri = uri.replacingOccurrences(of: "/", with: "")
+    
+    guard let decoded = try? bech32_decode(uri) else {
+        return nil
+    }
+    
+    let h = hex_encode(decoded.data)
+    
+    if decoded.hrp == "note" {
+        return .ref(ReferencedId(ref_id: h, relay_id: nil, key: "e"))
+    } else if decoded.hrp == "npub" {
+        return .ref(ReferencedId(ref_id: h, relay_id: nil, key: "p"))
+    }
+    // TODO: handle nprofile, etc
+    
+    return nil
+}
+
 func decode_nostr_uri(_ s: String) -> NostrLink? {
+    if s.starts(with: "https://damus.io/") {
+        return decode_universal_link(s)
+    }
+
     var uri = s.replacingOccurrences(of: "nostr://", with: "")
     uri = uri.replacingOccurrences(of: "nostr:", with: "")
     

damus/Nostr/RelayConnection.swift

@@ -38,7 +38,7 @@ class RelayConnection: WebSocketDelegate {
             self.connect(force: true)
         }
     }
-
+    
     func connect(force: Bool = false){
         if !force && (self.isConnected || self.isConnecting) {
             return