Add a WebRegistrationScreen (not included in the flow yet). (#3281)

ElementX/Sources/Services/Client/Client.swift

@@ -0,0 +1,32 @@
+//
+// Copyright 2024 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only
+// Please see LICENSE in the repository root for full details.
+//
+
+import Foundation
+import MatrixRustSDK
+
+extension ClientProtocol {
+    func getElementWellKnown() async -> Result<MatrixRustSDK.ElementWellKnown, ClientProxyError> {
+        do {
+            let serverName = if let userIDServerName = try? userIdServerName() {
+                "https://\(userIDServerName)"
+            } else {
+                server()
+            }
+            
+            guard let serverName,
+                  let url = URL(string: serverName)?.appending(path: "/.well-known/element/element.json") else {
+                return .failure(.invalidServerName)
+            }
+            
+            let response = try await getUrl(url: url.absoluteString)
+            let wellKnown = try makeElementWellKnown(string: response)
+            return .success(wellKnown)
+        } catch {
+            return .failure(.sdkError(error))
+        }
+    }
+}

ElementX/Sources/Services/Client/ClientProxy.swift

@@ -594,20 +594,7 @@ class ClientProxy: ClientProxyProtocol {
     }
     
     func getElementWellKnown() async -> Result<ElementWellKnown?, ClientProxyError> {
-        guard let userIDServerName,
-              var url = URL(string: "https://\(userIDServerName)") else {
-            return .failure(.invalidUserIDServerName)
-        }
-        
-        url.append(path: "/.well-known/element/element.json")
-        
-        do {
-            let response = try await client.getUrl(url: url.absoluteString)
-            let sdkWellKnown = try makeElementWellKnown(string: response)
-            return .success(ElementWellKnown(sdkWellKnown))
-        } catch {
-            return .failure(.sdkError(error))
-        }
+        await client.getElementWellKnown().map(ElementWellKnown.init)
     }
         
     // MARK: Ignored users

ElementX/Sources/Services/Client/ClientProxyProtocol.swift

@@ -32,7 +32,7 @@ enum ClientProxyError: Error {
     case sdkError(Error)
     
     case invalidMedia
-    case invalidUserIDServerName
+    case invalidServerName
     case failedUploadingMedia(Error, MatrixErrorCode)
     case roomPreviewIsPrivate
 }

ElementX/Sources/Services/Client/ElementWellKnown.swift

@@ -19,8 +19,10 @@ struct ElementWellKnown {
     }
     
     let call: Call?
+    let registrationHelperURL: URL?
     
     init?(_ wellKnown: MatrixRustSDK.ElementWellKnown) {
-        call = Call(wellKnown.call)
+        call = wellKnown.call.flatMap(Call.init)
+        registrationHelperURL = wellKnown.registrationHelperUrl.flatMap(URL.init)
     }
 }