Add a view to show the user's account from Element Classic. (#5361)

No presentation logic yet.
2026-11-07 12:58:39 +00:00 · 2026-04-08 21:18:03 +01:00
parent f21e8cb892
commit 1a5a709e27
19 changed files with 588 additions and 26 deletions
@@ -0,0 +1,91 @@
+//
+// Copyright 2026 Element Creations Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+// Please see LICENSE files in the repository root for full details.
+//
+
+import SwiftUI
+
+/// A media provider that can download a `ClassicAppAccount`'s avatar image.
+class ClassicAppMediaLoader: MediaLoaderProtocol {
+    let classicAppAccount: ClassicAppAccount
+    let urlSession: URLSession
+    
+    init(classicAppAccount: ClassicAppAccount, urlSession: URLSession = .shared) {
+        self.classicAppAccount = classicAppAccount
+        self.urlSession = urlSession
+    }
+    
+    func loadMediaContentForSource(_ source: MediaSourceProxy) async throws -> Data {
+        try await loadMedia(source: source)
+    }
+    
+    func loadMediaThumbnailForSource(_ source: MediaSourceProxy, width: UInt, height: UInt) async throws -> Data {
+        try await loadMedia(source: source, width: width, height: height)
+    }
+    
+    func loadMediaFileForSource(_ source: MediaSourceProxy, filename: String?) async throws -> MediaFileHandleProxy {
+        throw MediaLoaderError.notSupported // Not needed for LoadableImage
+    }
+    
+    // MARK: - Private
+    
+    private func loadMedia(source: MediaSourceProxy, width: UInt? = nil, height: UInt? = nil) async throws -> Data {
+        guard let mxcURL = source.url else {
+            MXLog.error("The provided media source is missing the URL")
+            throw MediaLoaderError.invalidURL
+        }
+        
+        guard let request = mediaURLRequest(from: mxcURL, width: width, height: height) else {
+            MXLog.error("Failed to construct media URL for source: \(mxcURL)")
+            throw MediaLoaderError.invalidURL
+        }
+        
+        let (data, response) = try await urlSession.data(for: request)
+        
+        guard let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200 else {
+            MXLog.error("Unexpected response fetching ClassicAppAccount media: \(source.url?.absoluteString ?? "nil")")
+            throw MediaLoaderError.unexpectedResponse
+        }
+        
+        return data
+    }
+    
+    /// Constructs an authenticated `URLRequest` to download Matrix media from the homeserver.
+    ///
+    /// - When `width` and `height` are provided, converts `mxc://{serverName}/{mediaId}` to
+    ///   `{homeserverURL}/_matrix/client/v1/media/thumbnail/{serverName}/{mediaId}?width=…&height=…`
+    /// - Otherwise converts to `{homeserverURL}/_matrix/client/v1/media/download/{serverName}/{mediaId}`
+    ///
+    /// Sets the `Authorization: Bearer` header when an access token is provided.
+    private func mediaURLRequest(from mxcURL: URL, width: UInt?, height: UInt?) -> URLRequest? {
+        guard mxcURL.scheme == "mxc" else { return nil }
+        
+        let serverName = mxcURL.host() ?? ""
+        let mediaID = mxcURL.path().trimmingCharacters(in: CharacterSet(charactersIn: "/"))
+        
+        guard !serverName.isEmpty, !mediaID.isEmpty else { return nil }
+        
+        let isThumbnail = width != nil && height != nil
+        let endpoint = isThumbnail ? "_matrix/client/v1/media/thumbnail" : "_matrix/client/v1/media/download"
+        
+        var components = URLComponents(url: classicAppAccount.homeserverURL
+            .appending(path: endpoint)
+            .appending(path: serverName)
+            .appending(path: mediaID), resolvingAgainstBaseURL: false)
+        
+        if let width, let height {
+            components?.queryItems = [
+                URLQueryItem(name: "width", value: String(width)),
+                URLQueryItem(name: "height", value: String(height))
+            ]
+        }
+        
+        guard let url = components?.url else { return nil }
+        
+        var request = URLRequest(url: url)
+        request.setValue("Bearer \(classicAppAccount.accessToken)", forHTTPHeaderField: "Authorization")
+        return request
+    }
+}