WIP

Signal/Signal-Info.plist

@@ -5,7 +5,7 @@
 	<key>BuildDetails</key>
 	<dict>
 		<key>CarthageVersion</key>
-		<string>0.33.0</string>
+		<string>0.34.0</string>
 		<key>OSXVersion</key>
 		<string>10.15.2</string>
 		<key>WebRTCCommit</key>

SignalServiceKit/src/Loki/API/LokiDotNetAPI.swift

@@ -74,6 +74,24 @@ public class LokiDotNetAPI : NSObject {
                     throw error
                 }
                 // Send the request
+                let isLokiFileServer = server.contains("file.lokinet.org") || server.contains("file-dev.lokinet.org")
+                if isLokiFileServer {
+                    LokiFileServerProxy(for: server).performLokiFileServerNSURLRequest(request as NSURLRequest).done { responseObject in
+                        // Parse the server ID & download URL
+                        guard let json = responseObject as? JSON, let data = json["data"] as? JSON, let serverID = data["id"] as? UInt64, let downloadURL = data["url"] as? String else {
+                            print("[Loki] Couldn't parse attachment from: \(responseObject).")
+                            return seal.reject(Error.parsingFailed)
+                        }
+                        // Update the attachment
+                        attachment.serverId = serverID
+                        attachment.isUploaded = true
+                        attachment.downloadURL = downloadURL
+                        attachment.save()
+                        seal.fulfill(())
+                    }.catch { error in
+                        seal.reject(error)
+                    }
+                } else {
                     let task = AFURLSessionManager(sessionConfiguration: .default).uploadTask(withStreamedRequest: request as URLRequest, progress: { rawProgress in
                         // Broadcast progress updates
                         let progress = max(0.1, rawProgress.fractionCompleted)
@@ -105,6 +123,7 @@ public class LokiDotNetAPI : NSObject {
                         return seal.fulfill(())
                     })
                     task.resume()
+                }
             }.catch(on: DispatchQueue.global()) { error in
                 print("[Loki] Couldn't upload attachment.")
                 seal.reject(error)

SignalServiceKit/src/Loki/API/LokiFileServerProxy.swift

@@ -39,6 +39,10 @@ internal class LokiFileServerProxy : LokiHTTPClient {
     override internal func perform(_ request: TSRequest, withCompletionQueue queue: DispatchQueue = DispatchQueue.main) -> LokiAPI.RawResponsePromise {
         let isLokiFileServer = server.contains("file.lokinet.org") || server.contains("file-dev.lokinet.org")
         guard isLokiFileServer else { return super.perform(request, withCompletionQueue: queue) } // Don't proxy open group requests for now
+        return performLokiFileServerNSURLRequest(request, withCompletionQueue: queue)
+    }
+    
+    internal func performLokiFileServerNSURLRequest(_ request: NSURLRequest, withCompletionQueue queue: DispatchQueue = DispatchQueue.main) -> LokiAPI.RawResponsePromise {
         let uncheckedSymmetricKey = try? Curve25519.generateSharedSecret(fromPublicKey: LokiFileServerProxy.fileServerPublicKey, privateKey: keyPair.privateKey)
         guard let symmetricKey = uncheckedSymmetricKey else { return Promise(error: Error.symmetricKeyGenerationFailed) }
         var headers = getCanonicalHeaders(for: request)
@@ -50,8 +54,17 @@ internal class LokiFileServerProxy : LokiHTTPClient {
                 serverURLEndIndex < urlAsString.endIndex else { throw Error.endpointParsingFailed }
             let endpointStartIndex = urlAsString.index(after: serverURLEndIndex)
             let endpoint = String(urlAsString[endpointStartIndex..<urlAsString.endIndex])
-            let parametersAsData = try JSONSerialization.data(withJSONObject: request.parameters, options: [])
-            let parametersAsString = !request.parameters.isEmpty ? String(bytes: parametersAsData, encoding: .utf8)! : "null"
+            let parametersAsString: String
+            if let tsRequest = request as? TSRequest {
+                let parametersAsData = try JSONSerialization.data(withJSONObject: tsRequest.parameters, options: [])
+                parametersAsString = !tsRequest.parameters.isEmpty ? String(bytes: parametersAsData, encoding: .utf8)! : "null"
+            } else {
+                if let parametersAsData = request.httpBody {
+                    parametersAsString = "{ \"fileUpload\" : \"\(String(data: parametersAsData.base64EncodedData(), encoding: .utf8) ?? "null")\" }"
+                } else {
+                    parametersAsString = "null"
+                }
+            }
             let proxyRequestParameters: JSON = [
                 "body" : parametersAsString,
                 "endpoint": endpoint,

SignalServiceKit/src/Loki/API/LokiHttpClient.swift

@@ -19,7 +19,7 @@ internal class LokiHTTPClient {
         }
     }
 
-    internal func getCanonicalHeaders(for request: TSRequest) -> [String: Any] {
+    internal func getCanonicalHeaders(for request: NSURLRequest) -> [String:Any] {
         guard let headers = request.allHTTPHeaderFields else { return [:] }
         return headers.mapValues { value in
             switch value.lowercased() {