public override Task UploadAsync(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
return
(_fileCopy.CopyFileAsync(spec.LocalFile, GetPathFromUri(spec)));
}
static void ProcessExitResult(ProcessExitResultWithOutput result, TransferSpec spec)
{
switch (result.ExitCode)
{
case 0:
break;
case -1:
throw new RsyncSoftProgramException(
$"Aborted/Killed (PID: {result.Id}, Status: {result.ExitCode}). {CreateTransferExceptionMessage(spec)}",
result.StandardOutput + result.StandardError, result.StartInfo.Arguments);
case 35584:
throw new RsyncSoftProgramException(
$"Stackdump (PID: {result.Id}, Status: {result.ExitCode}). {CreateTransferExceptionMessage(spec)}",
result.StandardOutput + result.StandardError, result.StartInfo.Arguments);
case -1073741819:
throw new RsyncCygwinProgramException(
$"Cygwin fork/rebase problem (PID: {result.Id}, Status: {result.ExitCode}). {CreateTransferExceptionMessage(spec)}",
result.StandardOutput + result.StandardError, result.StartInfo.Arguments);
default:
throw new RsyncException(
$"Did not exit gracefully (PID: {result.Id}, Status: {result.ExitCode}). {CreateTransferExceptionMessage(spec)}",
result.StandardOutput + result.StandardError, result.StartInfo.Arguments);
}
}
async Task TryDownloadAsync(TransferSpec spec)
{
Exception retryEx = null;
try {
await base.DownloadAsync(spec).ConfigureAwait(false);
} catch (ZsyncIncompatibleException e) {
retryEx = e;
} catch (ZsyncLoopDetectedException e) {
retryEx = e;
} catch (ZsyncCygwinProgramException e) {
// Rebase issue..
retryEx = e;
} catch (ZsyncSoftException e) {
var progress = spec.Progress;
if ((progress != null) && !AllowZsyncFallback(progress))
{
throw;
}
retryEx = e;
}
if (retryEx != null)
{
await TryRegularHttpDownloadAsync(spec, retryEx).ConfigureAwait(false);
}
}
public override void Download(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
_fileCopy.CopyFile(GetPathFromUri(spec), spec.LocalFile);
VerifyIfNeeded(spec, spec.LocalFile);
}
public override void Upload(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
ProcessExitResult(
_rsyncLauncher.RunAndProcess(spec.Progress, spec.LocalFile.ToString(), spec.Uri.ToString()), spec);
}
private static ZsyncParams GetParams(TransferSpec spec) => new ZsyncParams(spec.Progress,
new Uri(FixUrl(spec.Uri)), spec.LocalFile)
{
CancelToken = spec.CancellationToken,
ExistingFile = spec.ExistingFile,
Verbose = Common.Flags.Verbose
};
static async Task TryUploadAsync(TransferSpec spec, IWebClient webClient)
{
try {
if (!string.IsNullOrWhiteSpace(spec.Uri.UserInfo))
{
webClient.SetAuthInfo(spec.Uri);
}
using (webClient.HandleCancellationToken(spec))
await webClient.UploadFileTaskAsync(spec.Uri, spec.LocalFile.ToString()).ConfigureAwait(false);
} catch (OperationCanceledException e) {
throw CreateTimeoutException(spec, e);
} catch (WebException e) {
var cancelledEx = e.InnerException as OperationCanceledException;
if (cancelledEx != null)
{
throw CreateTimeoutException(spec, cancelledEx);
}
if (e.Status == WebExceptionStatus.RequestCanceled)
{
throw CreateTimeoutException(spec, e);
}
GenerateUploadException(spec, e);
}
}
public override async Task DownloadAsync(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
await _fileCopy.CopyFileAsync(GetPathFromUri(spec), spec.LocalFile).ConfigureAwait(false);
VerifyIfNeeded(spec, spec.LocalFile);
}
public override void Download(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
spec.Progress.ResetZsyncLoopInfo();
ProcessExitResult(_zsyncLauncher.RunAndProcess(GetParams(spec)), spec);
VerifyIfNeeded(spec, spec.LocalFile);
}
public override async Task UploadAsync(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
using (var webClient = _webClientFactory())
using (webClient.Value.SetupUploadTransferProgress(spec.Progress, timeout))
await TryUploadAsync(spec, webClient.Value).ConfigureAwait(false);
}
protected virtual void TryRegularHttpDownload(TransferSpec spec, Exception exception)
{
spec.Progress.Tries++;
_httpDownloader.Download(new FileDownloadSpec(spec.Uri.ReplaceZsyncProtocol(), spec.LocalFile, spec.Progress)
{
CancellationToken = spec.CancellationToken
});
}
public override async Task DownloadAsync(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
spec.Progress.ResetZsyncLoopInfo();
ProcessExitResult(await _zsyncLauncher.RunAndProcessAsync(GetParams(spec)).ConfigureAwait(false),
spec);
VerifyIfNeeded(spec, spec.LocalFile);
}
public override async Task UploadAsync(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
ProcessExitResult(
await
_rsyncLauncher.RunAndProcessAsync(spec.Progress, spec.LocalFile.ToString(), spec.Uri.ToString())
.ConfigureAwait(false), spec);
}
protected override void VerifyIfNeeded(TransferSpec spec, IAbsoluteFilePath localFile)
{
// To make sure we dont fall into zsync silent failure trap..
if (!localFile.Exists)
{
throw new ZsyncSoftException("Download failure, file doesn't exist");
}
base.VerifyIfNeeded(spec, localFile);
}
public override void Download(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
ProcessExitResult(
_rsyncLauncher.RunAndProcess(spec.Progress, spec.Uri.ToString(), spec.LocalFile.ToString(),
spec.CancellationToken), spec);
VerifyIfNeeded(spec, spec.LocalFile);
}
protected virtual void VerifyIfNeeded(TransferSpec spec, IAbsoluteFilePath localFile)
{
if ((spec.Verification == null) || spec.Verification(localFile))
{
return;
}
Tools.FileUtil.Ops.DeleteFile(localFile);
throw new VerificationError(localFile.ToString());
}
private void WrapInternal(Action action, TransferSpec spec)
{
OnStart(spec);
try {
action();
} catch (Exception e) {
OnError(spec, e);
throw;
}
OnFinished(spec);
}
private async Task WrapInternal(Func <Task> task, TransferSpec spec)
{
OnStart(spec);
try {
await task().ConfigureAwait(false);
} catch (Exception e) {
OnError(spec, e);
throw;
}
OnFinished(spec);
}
public override async Task DownloadAsync(TransferSpec spec)
{
spec.Progress.Tries++;
ConfirmSchemeSupported(spec.Uri.Scheme);
ProcessExitResult(
await
_rsyncLauncher.RunAndProcessAsync(spec.Progress, spec.Uri.ToString(), spec.LocalFile.ToString(),
spec.CancellationToken)
.ConfigureAwait(false), spec);
VerifyIfNeeded(spec, spec.LocalFile);
}
protected void Wrap(Action action, TransferSpec spec)
{
if (Common.Flags.Verbose)
{
WrapInternal(action, spec);
}
else
{
action();
}
}
protected override void OnError(TransferSpec spec, Exception e)
{
var msg = $"Failed upload of {spec.LocalFile} to {spec.Uri} ({e.Message})";
if (spec.Progress.Tries <= 1)
{
this.Logger().Error(msg);
}
else
{
this.Logger().Warn(msg);
}
}
void LogMessage(TransferSpec spec, Exception e)
{
var tfex = e as DownloadException;
string o = null;
if (tfex != null)
{
o = "\nOutput: " + tfex.Output;
}
this.Logger()
.Warn("Performing http fallback for {0} due to {1} ({2}){3}", spec.Uri.AuthlessUri(), e.GetType(),
e.Message, o);
}
async Task TryDownloadAsync(TransferSpec spec, IWebClient webClient, IAbsoluteFilePath tmpFile)
{
try {
tmpFile.RemoveReadonlyWhenExists();
if (!string.IsNullOrWhiteSpace(spec.Uri.UserInfo))
{
webClient.SetAuthInfo(spec.Uri);
}
using (webClient.HandleCancellationToken(spec))
await webClient.DownloadFileTaskAsync(spec.Uri, tmpFile.ToString()).ConfigureAwait(false);
VerifyIfNeeded(spec, tmpFile);
_fileOps.Move(tmpFile, spec.LocalFile);
} catch (OperationCanceledException e) {
_fileOps.DeleteIfExists(tmpFile.ToString());
throw CreateTimeoutException(spec, e);
} catch (WebException ex) {
_fileOps.DeleteIfExists(tmpFile.ToString());
var cancelledEx = ex.InnerException as OperationCanceledException;
if (cancelledEx != null)
{
throw CreateTimeoutException(spec, cancelledEx);
}
if (ex.Status == WebExceptionStatus.RequestCanceled)
{
throw CreateTimeoutException(spec, ex);
}
var response = ex.Response as HttpWebResponse;
if (response == null)
{
throw GenerateDownloadException(spec, ex);
}
switch (response.StatusCode)
{
case HttpStatusCode.NotFound:
throw new RequestFailedException("Received a 404: NotFound response", ex);
case HttpStatusCode.Forbidden:
throw new RequestFailedException("Received a 403: Forbidden response", ex);
case HttpStatusCode.Unauthorized:
throw new RequestFailedException("Received a 401: Unauthorized response", ex);
}
throw GenerateDownloadException(spec, ex);
}
}
void TryDownload(TransferSpec spec)
{
try {
base.Download(spec);
} catch (ZsyncIncompatibleException e) {
TryRegularHttpDownload(spec, e);
} catch (ZsyncLoopDetectedException e) {
TryRegularHttpDownload(spec, e);
} catch (ZsyncSoftException e) {
var progress = spec.Progress;
if ((progress != null) && !AllowZsyncFallback(progress))
{
throw;
}
TryRegularHttpDownload(spec, e);
}
}
protected override void OnError(TransferSpec spec, Exception e)
{
if (e is OperationCanceledException)
{
this.Logger()
.Warn(
$"Cancelled download of {spec.Uri} to {spec.LocalFile}, try {spec.Progress.Tries} ({e.Message})");
return;
}
var msg =
$"Failed download of {spec.Uri} to {spec.LocalFile}, try {spec.Progress.Tries} ({e.Message})\nOutput: {spec.Progress.Output}\n\nError report: {e.Format(1)}";
if (spec.Progress.Tries > 1)
{
this.Logger().Warn(msg);
}
else
{
this.Logger().Error(msg);
}
}
static void GenerateUploadException(TransferSpec spec, WebException e)
{
// TODO: Or should we rather abstract this away into the downloader exceptions instead?
var r = e.Response as HttpWebResponse;
if (r != null)
{
throw new HttpUploadException(e.Message + ". " + CreateTransferExceptionMessage(spec), e)
{
StatusCode = r.StatusCode
};
}
/*
* var r2 = e.Response as FtpWebResponse;
* if (r2 != null) {
* throw new FtpUploadException(e.Message + ". " + CreateTransferExceptionMessage(spec), e) {
* StatusCode = r2.StatusCode
* };
* }
*/
throw new UploadException(e.Message + ". " + CreateTransferExceptionMessage(spec), e);
}
protected override void OnFinished(TransferSpec spec)
{
this.Logger().Info("Finished upload of {0} to {1}", spec.LocalFile, spec.Uri);
}
public override Task DownloadAsync(TransferSpec spec) => TryDownloadAsync(spec);
protected override Task TryRegularHttpDownloadAsync(TransferSpec spec, Exception e)
{
LogMessage(spec, e);
return(base.TryRegularHttpDownloadAsync(spec, e));
}
protected override void TryRegularHttpDownload(TransferSpec spec, Exception e)
{
LogMessage(spec, e);
base.TryRegularHttpDownload(spec, e);
}