private async Task SaveDataToFile(string fileName, RequestFileContents requestData, bool retryOnFailure = true)
{
var folder = ApplicationData.Current.LocalFolder;
var prefix = string.Empty;
prefix = ViewModel.SavedFilePrefix.Length == 0
? string.Empty
: $"{ViewModel.SavedFilePrefix}.";
try
{
var file = await folder.CreateFileAsync($"{prefix}{fileName}", CreationCollisionOption.ReplaceExisting);
if (file != null)
{
await FileIO.WriteTextAsync(file, requestData.ToString());
_lastSavedFilePath = file.Path;
SavePathToRecentFiles(file.Path);
ViewModel.ShowInfoMessage($"Saved to disk: {file.Path}", SavedInfoMessageDisplaySeconds);
ViewModel.IsClipboardCopyEnabled = true;
return;
}
}
catch (Exception) when(retryOnFailure)
{
// Attempt to retry writing the file if it fails using a plain name
ViewModel.SavedFilePrefix = string.Empty;
await SaveDataToFile("request.txt", requestData, false);
return;
}
ViewModel.ShowInfoMessage("Failed to save file to disk");
}
private void SetClosedOrFailedFileState(string errorMessage = "Failed to open resource")
{
ViewModel.FileNamePath = string.Empty;
ViewModel.OriginalFileContent = string.Empty;
UpdateTitle(string.Empty);
_requestFileContents = null;
ViewModel.SourceObject = null;
ViewModel.ShowInfoMessage(errorMessage);
ViewModel.IsSaveEnabled = false;
}
private async Task SetOpenedWebResourceState(WebResponse response)
{
ViewModel.FileNamePath = response.ResponseUri.ToString();
ViewModel.WebFileNamePath = string.Empty;
_requestFileContents = await RequestFileContents.ReadResponseContents(response);
ViewModel.OriginalFileContent = _requestFileContents.Payload;
ViewModel.SourceObject = _requestFileContents.GetPayloadObject();
if (ViewModel.SourceObject == null)
{
SetClosedOrFailedFileState("Could not parse json from web resource");
return;
}
ViewModel.IsSaveEnabled = true;
UpdateTitle(GetFileName());
ViewModel.ShowInfoMessage($"Opened web resource: {ViewModel.FileNamePath}");
}
private async Task SetOpenedFileState(StorageFile file)
{
ViewModel.FileNamePath = file.Path;
ViewModel.WebFileNamePath = string.Empty;
_requestFileContents = await RequestFileContents.ReadFileContents(file);
ViewModel.OriginalFileContent = _requestFileContents.Payload;
ViewModel.SourceObject = _requestFileContents.GetPayloadObject();
if (ViewModel.SourceObject == null)
{
SetClosedOrFailedFileState("Could not parse json from local resource");
return;
}
ViewModel.IsSaveEnabled = true;
UpdateTitle(GetFileName());
ViewModel.ShowInfoMessage($"Opened filed: {ViewModel.FileNamePath}");
}
public static async Task <RequestFileContents> ReadResponseContents(WebResponse response)
{
var resultRequestFileContents = new RequestFileContents();
for (int i = 0; i < response.Headers.Count; ++i)
{
var key = response.Headers.AllKeys[i];
var value = response.Headers[key];
resultRequestFileContents.Headers += $"{key}: {value}\n";
}
using (Stream stream = response.GetResponseStream())
using (StreamReader reader = new StreamReader(stream))
{
while (!reader.EndOfStream)
{
resultRequestFileContents.Payload += await reader.ReadLineAsync();
}
}
return(resultRequestFileContents);
}
public static async Task <RequestFileContents> ReadFileContents(StorageFile file)
{
var resultRequestFileContents = new RequestFileContents();
var hasHitPayload = false;
using (var inputStream = await file.OpenReadAsync())
using (var classicsStream = inputStream.AsStreamForRead())
using (var streamReader = new StreamReader(classicsStream))
{
while (streamReader.Peek() > 0)
{
var line = $"{streamReader.ReadLine()}\n";
if (line == "\n")
{
hasHitPayload = true;
continue;
}
if (hasHitPayload)
{
resultRequestFileContents.Payload += line;
}
else
{
if (line.ToLower().StartsWith("http/"))
{
continue;
}
resultRequestFileContents.Headers += line;
}
}
}
return(resultRequestFileContents);
}