Exception System.uriFormatException

[rootiam]

I have:

• searched open and closed issues for duplicates

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Version info

Duplicati Version: 2.0.1.35_experimental_2016-12-13
Operating System: Windows 10 Pro 10.0.14393
Backend: Amazon Cloud Drive

Bug description

After an undefined and discontinuous amount of time the Duplicati is crashing with the following errors in Windows Application log:

Application: Duplicati.GUI.TrayIcon.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.UriFormatException at System.Uri.CreateThis(System.String, Boolean, System.UriKind) at HttpServer.HttpClientContext.OnRequestLine(System.Object, HttpServer.Parser.RequestLineEventArgs) at System.EventHandler1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].Invoke(System.Object, System.__Canon)
at HttpServer.Parser.HttpRequestParser.Parse(Byte[], Int32, Int32)
at HttpServer.HttpClientContext.OnReceive(System.IAsyncResult)
at System.Net.LazyAsyncResult.Complete(IntPtr)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Net.ContextAwareResult.Complete(IntPtr)
at System.Net.LazyAsyncResult.ProtectedInvokeCallback(System.Object, IntPtr)
at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)`

Faulting application name: Duplicati.GUI.TrayIcon.exe, version: 2.0.1.22, time stamp: 0x00000000
Faulting module name: KERNELBASE.dll, version: 10.0.14393.479, time stamp: 0x582588e6
Exception code: 0xe0434352
Fault offset: 0x0000000000017788
Faulting process id: 0x13f8
Faulting application start time: 0x01d278ffcca01ab9
Faulting application path: C:\Program Files\Duplicati 2\Duplicati.GUI.TrayIcon.exe
Faulting module path: C:\Windows\System32\KERNELBASE.dll
Report Id: 557ceb78-79f3-44ed-9213-49824bd11ff9
Faulting package full name:
Faulting package-relative application ID:

[kenkendk]

The crash happens here:
https://github.com/duplicati/httpserver/blob/master/HttpServer/HttpClientContext.cs#L132

It seems that something is sending a request to the server that contains an invalid query string.

[ts678]

Code line that was referenced above has also been pointed to (with a better stack trace to support it) in the forum in the topic:

Duplicati ERROR and restarting: [ERROR] FATAL UNHANDLED EXCEPTION: System.UriFormatException: Invalid URI: Invalid port specified

where theory is that putting Duplicati on the Internet exposes it to attacks and things that harm it. If you do that, please don't.

Automatically Restart Duplicati when it Crashes

Take note that Duplicati GUI is accessible via a public IP of the server. So it is also possible that some port scan or system/bad person is running a HTTP request scan that is hitting Duplicati GUI and causing it to fail.

The first forum topic gave some ideas on how one can monitor what sort of connections are being made to the Duplicati server.

Looking at the timestamps of the restarts I do see that it is happening even with I am not using the UI

I will isolate the duplicati port from the public internet and monitor is this continues to happen.

Will post my results in the future.

so we may see what turns up. Feel free to post any additional information, e.g. was Duplicati on the Internet when this happens?
Web server is very old and should not be subjected to that. There's already an effort to replace it completely with a newer server.

[kenkendk]

Closing this as the HttpServer is no longer being used.