NIP05 Verification

Changelog-Added: Added NIP05 Verification

damus.xcodeproj/project.pbxproj

@@ -115,6 +115,7 @@
 		4CACA9DC280C38C000D9BBE8 /* Profiles.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CACA9DB280C38C000D9BBE8 /* Profiles.swift */; };
 		4CB55EF3295E5D59007FD187 /* RecommendedRelayView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CB55EF2295E5D59007FD187 /* RecommendedRelayView.swift */; };
 		4CB55EF5295E679D007FD187 /* UserRelaysView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CB55EF4295E679D007FD187 /* UserRelaysView.swift */; };
+		4CB8838629656C8B00DC99E7 /* NIP05.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CB8838529656C8B00DC99E7 /* NIP05.swift */; };
 		4CD7641B28A1641400B6928F /* EndBlock.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CD7641A28A1641400B6928F /* EndBlock.swift */; };
 		4CE4F8CD281352B30009DFBB /* Notifications.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CE4F8CC281352B30009DFBB /* Notifications.swift */; };
 		4CE4F9DE2852768D00C00DD9 /* ConfigView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CE4F9DD2852768D00C00DD9 /* ConfigView.swift */; };
@@ -304,6 +305,7 @@
 		4CACA9DB280C38C000D9BBE8 /* Profiles.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Profiles.swift; sourceTree = "<group>"; };
 		4CB55EF2295E5D59007FD187 /* RecommendedRelayView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RecommendedRelayView.swift; sourceTree = "<group>"; };
 		4CB55EF4295E679D007FD187 /* UserRelaysView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserRelaysView.swift; sourceTree = "<group>"; };
+		4CB8838529656C8B00DC99E7 /* NIP05.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NIP05.swift; sourceTree = "<group>"; };
 		4CD7641A28A1641400B6928F /* EndBlock.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EndBlock.swift; sourceTree = "<group>"; };
 		4CE4F8CC281352B30009DFBB /* Notifications.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Notifications.swift; sourceTree = "<group>"; };
 		4CE4F9DD2852768D00C00DD9 /* ConfigView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConfigView.swift; sourceTree = "<group>"; };
@@ -550,6 +552,7 @@
 				3165648A295B70D500C64604 /* LinkView.swift */,
 				4C3A1D3629637E0500558C0F /* PreviewCache.swift */,
 				64FBD06E296255C400D9D3B2 /* Theme.swift */,
+				4CB8838529656C8B00DC99E7 /* NIP05.swift */,
 			);
 			path = Util;
 			sourceTree = "<group>";
@@ -874,6 +877,7 @@
 				4C3EA64F28FF59F200C48A62 /* tal.c in Sources */,
 				4C8682872814DE470026224F /* ProfileView.swift in Sources */,
 				4C5F9114283D694D0052CD1C /* FollowTarget.swift in Sources */,
+				4CB8838629656C8B00DC99E7 /* NIP05.swift in Sources */,
 				4C5C7E6A284EDE2E00A22DF5 /* SearchResultsView.swift in Sources */,
 				4CE6DF1627F8DEBF00C66700 /* RelayConnection.swift in Sources */,
 				4C3BEFD6281D995700B3DE84 /* ActionBarModel.swift in Sources */,

damus/Models/HomeModel.swift

@@ -544,7 +544,9 @@ func process_metadata_event(profiles: Profiles, ev: NostrEvent) {
         return
     }
 
+    var old_nip05: String? = nil
     if let mprof = profiles.lookup_with_timestamp(id: ev.pubkey) {
+        old_nip05 = mprof.profile.nip05
         if mprof.timestamp > ev.created_at {
             // skip if we already have an newer profile
             return
@@ -554,6 +556,20 @@ func process_metadata_event(profiles: Profiles, ev: NostrEvent) {
     let tprof = TimestampedProfile(profile: profile, timestamp: ev.created_at)
     profiles.add(id: ev.pubkey, profile: tprof)
     
+    if let nip05 = profile.nip05, old_nip05 != profile.nip05 {
+        Task.detached(priority: .background) {
+            let validated = await validate_nip05(pubkey: ev.pubkey, nip05_str: nip05)
+            if validated != nil {
+                print("validated nip05 for '\(nip05)'")
+            }
+            
+            DispatchQueue.main.async {
+                profiles.validated[ev.pubkey] = validated
+                notify(.profile_updated, ProfileUpdate(pubkey: ev.pubkey, profile: profile))
+            }
+        }
+    }
+    
     // load pfps asap
     let picture = tprof.profile.picture ?? robohash(ev.pubkey)
     if let _ = URL(string: picture) {

damus/Nostr/Profiles.swift

@@ -11,6 +11,11 @@ import UIKit
 
 class Profiles {
     var profiles: [String: TimestampedProfile] = [:]
+    var validated: [String: NIP05] = [:]
+    
+    func is_validated(_ pk: String) -> NIP05? {
+        return validated[pk]
+    }
     
     func add(id: String, profile: TimestampedProfile) {
         profiles[id] = profile

damus/Util/NIP05.swift

@@ -0,0 +1,65 @@
+//
+//  NIP05.swift
+//  damus
+//
+//  Created by William Casarin on 2023-01-04.
+//
+
+import Foundation
+
+struct NIP05 {
+    let username: String
+    let host: String
+    
+    var url: URL? {
+        URL(string: "https://\(host)/.well-known/nostr.json?name=\(username)")
+    }
+    
+    static func parse(_ nip05: String) -> NIP05? {
+        let parts = nip05.split(separator: "@")
+        guard parts.count == 2 else {
+            return nil
+        }
+        return NIP05(username: String(parts[0]), host: String(parts[1]))
+    }
+}
+
+
+struct NIP05Response: Decodable {
+    let names: [String: String]
+    let relays: [String: [String]]?
+}
+
+enum NIP05Validation {
+    case invalid
+    case valid
+}
+
+func validate_nip05(pubkey: String, nip05_str: String) async -> NIP05? {
+    guard let nip05 = NIP05.parse(nip05_str) else {
+        return nil
+    }
+    
+    guard let url = nip05.url else {
+        return nil
+    }
+    
+    guard let ret = try? await URLSession.shared.data(from: url) else {
+        return nil
+    }
+    let dat = ret.0
+    
+    guard let decoded = try? JSONDecoder().decode(NIP05Response.self, from: dat) else {
+        return nil
+    }
+    
+    guard let stored_pk = decoded.names[nip05.username] else {
+        return nil
+    }
+    
+    guard stored_pk == pubkey else {
+        return nil
+    }
+    
+    return nip05
+}

damus/Views/ChatView.swift

@@ -86,7 +86,7 @@ struct ChatView: View {
                 VStack(alignment: .leading) {
                     if just_started {
                         HStack {
-                            ProfileName(pubkey: event.pubkey, profile: damus_state.profiles.lookup(id: event.pubkey), contacts: damus_state.contacts, show_friend_confirmed: true)
+                            ProfileName(pubkey: event.pubkey, profile: damus_state.profiles.lookup(id: event.pubkey), contacts: damus_state.contacts, show_friend_confirmed: true, profiles: damus_state.profiles)
                                 .foregroundColor(colorScheme == .dark ?  id_to_color(event.pubkey) : Color.black)
                                 //.shadow(color: Color.black, radius: 2)
                             Text("\(format_relative_time(event.created_at))")

damus/Views/DMChatView.swift

@@ -40,7 +40,7 @@ struct DMChatView: View {
             HStack {
                 ProfilePicView(pubkey: pubkey, size: 24, highlight: .none, profiles: damus_state.profiles)
 
-                ProfileName(pubkey: pubkey, profile: profile, contacts: damus_state.contacts, show_friend_confirmed: true)
+                ProfileName(pubkey: pubkey, profile: profile, contacts: damus_state.contacts, show_friend_confirmed: true, profiles: damus_state.profiles)
             }
         }
         .buttonStyle(PlainButtonStyle())

damus/Views/EditMetadataView.swift

@@ -15,19 +15,6 @@ func isHttpsUrl(_ string: String) -> Bool {
     return urlTest.evaluate(with: string)
 }
 
-struct NIP05 {
-    let username: String
-    let host: String
-    
-    static func parse(_ nip05: String) -> NIP05? {
-        let parts = nip05.split(separator: "@")
-        guard parts.count == 2 else {
-            return nil
-        }
-        return NIP05(username: String(parts[0]), host: String(parts[1]))
-    }
-}
-
 func isImage(_ urlString: String) -> Bool {
     let imageTypes = ["image/jpg", "image/jpeg", "image/png", "image/gif", "image/tiff", "image/bmp", "image/webp"]
 

damus/Views/EventView.swift

@@ -176,7 +176,7 @@ struct EventView: View {
                             Image(systemName: "arrow.2.squarepath")
                                 .font(.footnote.weight(.bold))
                                 .foregroundColor(Color.gray)
-                            ProfileName(pubkey: event.pubkey, profile: prof, contacts: damus.contacts, show_friend_confirmed: true)
+                            ProfileName(pubkey: event.pubkey, profile: prof, contacts: damus.contacts, show_friend_confirmed: true, profiles: damus.profiles)
                                     .font(.footnote.weight(.bold))
                                     .foregroundColor(Color.gray)
                             Text("Boosted")
@@ -227,7 +227,7 @@ struct EventView: View {
                         }
                     }
                     
-                    EventProfileName(pubkey: pubkey, profile: profile, contacts: damus.contacts, show_friend_confirmed: show_friend_icon, size: size)
+                    EventProfileName(pubkey: pubkey, profile: profile, contacts: damus.contacts, show_friend_confirmed: show_friend_icon, profiles: damus.profiles, size: size)
                     if size != .selected {
                         Text("\(format_relative_time(event.created_at))")
                             .font(eventviewsize_to_font(size))

damus/Views/FollowingView.swift

@@ -24,7 +24,7 @@ struct FollowUserView: View {
             
                 VStack(alignment: .leading) {
                     let profile = damus_state.profiles.lookup(id: target.pubkey)
-                    ProfileName(pubkey: target.pubkey, profile: profile, contacts: damus_state.contacts, show_friend_confirmed: false)
+                    ProfileName(pubkey: target.pubkey, profile: profile, contacts: damus_state.contacts, show_friend_confirmed: false, profiles: damus_state.profiles)
                     if let about = profile?.about {
                         Text(FollowUserView.markdown.process(about))
                             .lineLimit(3)

damus/Views/ProfileName.swift

@@ -7,28 +7,6 @@
 
 import SwiftUI
 
-struct ProfileFullName: View {
-    let pubkey: String
-    let profile: Profile?
-    let contacts: Contacts
-    
-    @State var display_name: String?
-    
-    var body: some View {
-        HStack {
-            if let real_name = profile?.display_name {
-                Text(real_name)
-                    .bold()
-                ProfileName(pubkey: pubkey, profile: profile, prefix: "@", contacts: contacts, show_friend_confirmed: true)
-                    .font(.footnote)
-                    .foregroundColor(.gray)
-            } else {
-//                ProfileName(pubkey: pubkey, profile: profile, contacts: contacts, show_friend_confirmed: true)
-            }
-        }
-    }
-}
-
 struct ProfileName: View {
     let pubkey: String
     let profile: Profile?
@@ -36,23 +14,27 @@ struct ProfileName: View {
     let prefix: String
     
     let show_friend_confirmed: Bool
+    let profiles: Profiles
     
     @State var display_name: String?
+    @State var nip05: NIP05?
     
-    init(pubkey: String, profile: Profile?, contacts: Contacts, show_friend_confirmed: Bool) {
+    init(pubkey: String, profile: Profile?, contacts: Contacts, show_friend_confirmed: Bool, profiles: Profiles) {
         self.pubkey = pubkey
         self.profile = profile
         self.prefix = ""
         self.contacts = contacts
         self.show_friend_confirmed = show_friend_confirmed
+        self.profiles = profiles
     }
     
-    init(pubkey: String, profile: Profile?, prefix: String, contacts: Contacts, show_friend_confirmed: Bool) {
+    init(pubkey: String, profile: Profile?, prefix: String, contacts: Contacts, show_friend_confirmed: Bool, profiles: Profiles) {
         self.pubkey = pubkey
         self.profile = profile
         self.prefix = prefix
         self.contacts = contacts
         self.show_friend_confirmed = show_friend_confirmed
+        self.profiles = profiles
     }
     
     var friend_icon: String? {
@@ -71,12 +53,26 @@ struct ProfileName: View {
         return nil
     }
     
+    var nip05_color: Color {
+        contacts.is_friend(pubkey) ? .blue : .yellow
+    }
+    
+    var current_nip05: NIP05? {
+        nip05 ?? profiles.is_validated(pubkey)
+    }
+    
     var body: some View {
-        HStack {
+        HStack(spacing: 2) {
             Text(prefix + String(display_name ?? Profile.displayName(profile: profile, pubkey: pubkey)))
                 .font(.body)
                 .fontWeight(prefix == "@" ? .none : .bold)
-            if let friend = friend_icon {
+            if let nip05 = current_nip05 {
+                Image(systemName: "checkmark.seal.fill")
+                    .foregroundColor(nip05_color)
+                Text(nip05.host)
+                    .foregroundColor(nip05_color)
+            }
+            if let friend = friend_icon, current_nip05 == nil {
                 Image(systemName: friend)
                     .foregroundColor(.gray)
             }
@@ -87,6 +83,7 @@ struct ProfileName: View {
                 return
             }
             display_name = Profile.displayName(profile: update.profile, pubkey: pubkey)
+            nip05 = profiles.is_validated(pubkey)
         }
     }
 }
@@ -99,27 +96,31 @@ struct EventProfileName: View {
     let prefix: String
     
     let show_friend_confirmed: Bool
+    let profiles: Profiles
     
     @State var display_name: String?
+    @State var nip05: NIP05?
     
     let size: EventViewKind
     
-    init(pubkey: String, profile: Profile?, contacts: Contacts, show_friend_confirmed: Bool, size: EventViewKind = .normal) {
+    init(pubkey: String, profile: Profile?, contacts: Contacts, show_friend_confirmed: Bool, profiles: Profiles, size: EventViewKind = .normal) {
         self.pubkey = pubkey
         self.profile = profile
         self.prefix = ""
         self.contacts = contacts
         self.show_friend_confirmed = show_friend_confirmed
         self.size = size
+        self.profiles = profiles
     }
     
-    init(pubkey: String, profile: Profile?, prefix: String, contacts: Contacts, show_friend_confirmed: Bool, size: EventViewKind = .normal) {
+    init(pubkey: String, profile: Profile?, prefix: String, contacts: Contacts, show_friend_confirmed: Bool, profiles: Profiles, size: EventViewKind = .normal) {
         self.pubkey = pubkey
         self.profile = profile
         self.prefix = prefix
         self.contacts = contacts
         self.show_friend_confirmed = show_friend_confirmed
         self.size = size
+        self.profiles = profiles
     }
     
     var friend_icon: String? {
@@ -137,12 +138,21 @@ struct EventProfileName: View {
         
         return nil
     }
+
+    var nip05_color: Color {
+        contacts.is_friend(pubkey) ? .blue : .yellow
+    }
     
+    var current_nip05: NIP05? {
+        nip05 ?? profiles.is_validated(pubkey)
+    }
+   
     var body: some View {
-        HStack {
+        HStack(spacing: 2) {
             if let real_name = profile?.display_name {
                 Text(real_name)
                     .font(.body.weight(.bold))
+                    .padding([.trailing], 4)
                 
                 Text("@" + String(display_name ?? Profile.displayName(profile: profile, pubkey: pubkey)))
                     .foregroundColor(.gray)
@@ -153,7 +163,16 @@ struct EventProfileName: View {
                     .fontWeight(.bold)
             }
             
-            if let frend = friend_icon {
+            if let nip05 = current_nip05 {
+                Image(systemName: "checkmark.seal.fill")
+                    .foregroundColor(nip05_color)
+                if !contacts.is_friend(pubkey) {
+                    Text(nip05.host)
+                        .foregroundColor(nip05_color)
+                }
+            }
+            
+            if let frend = friend_icon, current_nip05 == nil {
                 Label("", systemImage: frend)
                     .foregroundColor(.gray)
                     .font(.footnote)
@@ -165,6 +184,7 @@ struct EventProfileName: View {
                 return
             }
             display_name = Profile.displayName(profile: update.profile, pubkey: pubkey)
+            nip05 = profiles.is_validated(pubkey)
         }
     }
 }

damus/Views/ProfileView.swift

@@ -49,6 +49,7 @@ struct ProfileNameView: View {
     let pubkey: String
     let profile: Profile?
     let contacts: Contacts
+    let profiles: Profiles
     
     var body: some View {
         Group {
@@ -56,7 +57,7 @@ struct ProfileNameView: View {
                 VStack(alignment: .leading) {
                     Text(real_name)
                         .font(.title3.weight(.bold))
-                    ProfileName(pubkey: pubkey, profile: profile, prefix: "@", contacts: contacts, show_friend_confirmed: true)
+                    ProfileName(pubkey: pubkey, profile: profile, prefix: "@", contacts: contacts, show_friend_confirmed: true, profiles: profiles)
                         .font(.callout)
                         .foregroundColor(.gray)
                     KeyView(pubkey: pubkey)
@@ -64,7 +65,7 @@ struct ProfileNameView: View {
                 }
             } else {
                 VStack(alignment: .leading) {
-                    ProfileName(pubkey: pubkey, profile: profile, contacts: contacts, show_friend_confirmed: true)
+                    ProfileName(pubkey: pubkey, profile: profile, contacts: contacts, show_friend_confirmed: true, profiles: profiles)
                         .font(.title3.weight(.bold))
                     KeyView(pubkey: pubkey)
                         .pubkey_context_menu(bech32_pubkey: pubkey)
@@ -227,7 +228,7 @@ struct ProfileView: View {
                     .offset(y: -15.0) // Increase if set a frame
                 }
                 
-                ProfileNameView(pubkey: profile.pubkey, profile: data, contacts: damus_state.contacts)
+                ProfileNameView(pubkey: profile.pubkey, profile: data, contacts: damus_state.contacts, profiles: damus_state.profiles)
                     //.padding(.bottom)
                     .padding(.top,-(pfp_size/2.0))