Reverted changes done to UWC file as they are not linked to Relations nor this PR

Author: YBTopaz8

Parse/Infrastructure/Execution/UniversalWebClient.cs

@@ -38,7 +38,6 @@ public UniversalWebClient() : this(new BCLWebClient { }) { }
     public UniversalWebClient(BCLWebClient client) => Client = client;
 
     BCLWebClient Client { get; set; }
-    /// <inheritdoc/>
     public async Task<Tuple<HttpStatusCode, string>> ExecuteAsync(
     WebRequest httpRequest,
     IProgress<IDataTransferLevel> uploadProgress,
@@ -51,7 +50,7 @@ public async Task<Tuple<HttpStatusCode, string>> ExecuteAsync(
         HttpRequestMessage message = new HttpRequestMessage(new HttpMethod(httpRequest.Method), httpRequest.Target);
 
         Stream data = httpRequest.Data;
-        if (data != null || httpRequest.Method.Equals("POST", StringComparison.OrdinalIgnoreCase))             
+        if (data != null || httpRequest.Method.Equals("POST", StringComparison.OrdinalIgnoreCase))
         {
             message.Content = new StreamContent(data ?? new MemoryStream(new byte[0]));
         }
@@ -80,48 +79,53 @@ public async Task<Tuple<HttpStatusCode, string>> ExecuteAsync(
         HttpResponseMessage response = await Client.SendAsync(message, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
         uploadProgress.Report(new DataTransferLevel { Amount = 1 });
 
-        long? totalLength = response.Content.Headers.ContentLength;
+        Stream responseStream = await response.Content.ReadAsStreamAsync(cancellationToken);
+
+
 
         MemoryStream resultStream = new MemoryStream { };
+        int bufferSize = 4096, bytesRead = 0;
+        byte[] buffer = new byte[bufferSize];
+        long totalLength = -1, readSoFar = 0;
+
         try
         {
-            using (var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken))
-            {
-                byte[] buffer = new byte[4096];
-                int bytesRead;
-                long readSoFar = 0;
-                while ((bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length, cancellationToken)) > 0)
-                {
-                    cancellationToken.ThrowIfCancellationRequested();
-
-                    await resultStream.WriteAsync(buffer, 0, bytesRead, cancellationToken);
-                    cancellationToken.ThrowIfCancellationRequested();
-                    readSoFar += bytesRead;
-
+            totalLength = responseStream.Length;
+        }
+        catch
+        {
+            Console.WriteLine("Unsupported length...");
+        };
 
-                    if (totalLength.HasValue && totalLength > 0)
-                    {
-                        downloadProgress.Report(new DataTransferLevel { Amount = (double) readSoFar / totalLength.Value });
-                    }
 
+        while ((bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length, cancellationToken)) > 0)
+        {
+            cancellationToken.ThrowIfCancellationRequested();
 
-                }
-            }
+            await resultStream.WriteAsync(buffer, 0, bytesRead, cancellationToken);
+            cancellationToken.ThrowIfCancellationRequested();
+            readSoFar += bytesRead;
 
-            if (!totalLength.HasValue || totalLength <= 0)
+            if (totalLength > -1)
             {
-                downloadProgress.Report(new DataTransferLevel { Amount = 1.0 }); // Report completion if total length is unknown
+                downloadProgress.Report(new DataTransferLevel { Amount = (double) readSoFar / totalLength });
             }
+        }
 
+        responseStream.Dispose();
 
-            byte[] resultAsArray = resultStream.ToArray();
-            string resultString = Encoding.UTF8.GetString(resultAsArray, 0, resultAsArray.Length);
-            //think of throwing better error when login fails for non verified 
-            return new Tuple<HttpStatusCode, string>(response.StatusCode, resultString);
-        }
-        finally
+        if (totalLength == -1)
         {
-            resultStream.Dispose();
+            downloadProgress.Report(new DataTransferLevel { Amount = 1.0 });
         }
+
+        byte[] resultAsArray = resultStream.ToArray();
+        resultStream.Dispose();
+
+        // Assume UTF-8 encoding.
+        string resultString = Encoding.UTF8.GetString(resultAsArray, 0, resultAsArray.Length);
+
+        return new Tuple<HttpStatusCode, string>(response.StatusCode, resultString);
     }
-}
+
+}