Proxy profile picture uploads

SignalServiceKit/src/Loki/API/LokiDotNetAPI.swift

@@ -100,10 +100,10 @@ public class LokiDotNetAPI : NSObject {
                     return seal.reject(error)
                 }
                 // Send the request
-                func parseResponse(_ response: Any) {
+                func parseResponse(_ responseObject: Any) {
                     // Parse the server ID & download URL
-                    guard let json = response 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: \(response).")
+                    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(LokiDotNetAPIError.parsingFailed)
                     }
                     // Update the attachment

SignalServiceKit/src/Loki/API/LokiFileServerAPI.swift

@@ -150,24 +150,15 @@ public final class LokiFileServerAPI : LokiDotNetAPI {
                     print("[Loki] Couldn't upload profile picture due to error: \(error).")
                     throw error
                 }
-                let task = AFURLSessionManager(sessionConfiguration: .default).uploadTask(withStreamedRequest: request as URLRequest, progress: nil, completionHandler: { response, responseObject, error in
-                    if let error = error {
-                        print("[Loki] Couldn't upload profile picture due to error: \(error).")
-                        return seal.reject(error)
-                    }
-                    let statusCode = (response as! HTTPURLResponse).statusCode
-                    let isSuccessful = (200...299) ~= statusCode
-                    guard isSuccessful else {
-                        print("[Loki] Couldn't upload profile picture.")
-                        return seal.reject(LokiDotNetAPIError.generic)
-                    }
+                let _ = LokiFileServerProxy(for: server).performLokiFileServerNSURLRequest(request as NSURLRequest).done { responseObject in
                     guard let json = responseObject as? JSON, let data = json["data"] as? JSON, let profilePicture = data["avatar_image"] as? JSON, let downloadURL = profilePicture["url"] as? String else {
                         print("[Loki] Couldn't parse profile picture from: \(responseObject).")
                         return seal.reject(LokiDotNetAPIError.parsingFailed)
                     }
                     return seal.fulfill(downloadURL)
-                })
-                task.resume()
+                }.catch { error in
+                    seal.reject(error)
+                }
             }.catch { error in
                 print("[Loki] Couldn't upload profile picture due to error: \(error).")
                 seal.reject(error)

SignalServiceKit/src/Loki/API/LokiFileServerProxy.swift

@@ -106,7 +106,7 @@ internal class LokiFileServerProxy : LokiHTTPClient {
                 print("[Loki] Received an invalid response.")
                 throw Error.proxyResponseParsingFailed
             }
-            let isSuccess = (200..<300).contains(statusCode)
+            let isSuccess = (200...299) ~= statusCode
             guard isSuccess else { throw HTTPError.networkError(code: statusCode, response: nil, underlyingError: Error.fileServerHTTPError(code: statusCode, message: nil)) }
             let uncheckedJSONAsData = try DiffieHellman.decrypt(cipherText, using: symmetricKey)
             if uncheckedJSONAsData.isEmpty { return () }