Hi,we're using fiddlercore + selenium get on the traffic acquisition. it's in single-threaded is ok, we need in multiple-thead environment  to using fiddlercore. but we found out it's maybe no't support start Up too many instances. Can u tell me do it? or some better metod.  this pages have resemble  the answer :https://www.telerik.com/forums/separate-traffic-from-multi-threaded-program  but i don't understand.

“for instance via a custom request header (X-THREAD-ID: 123) that FiddlerCore could delete before forwarding the request to the target.”

hi

I'm trying to use CONNECT command of http proxy as generic tcp tunnel in our project. It's not SSL
Firstly I had used it for one of our services where client sends requests to a server and the servers responds (in other words the client is initiator of activity) - it seems all worked fine with fiddler.

Now i have tried to use same technique for tunneling ftp connection (control and data in passive mode). And this doesn't work, because in ftp control connection server firstly send greeting message to a client and the client waits for them, it doesn't send anything until get this greeting.
It looks like fiddler doesn't pass first data packet from the server to the client when server is initiator of conversation.
As result when fiddler sniffs for a SSL handshake it doesn't see traffic from the client and drops the connection.
Even disabling option "Decrypt HTTPS traffic" doesn't help.

IMHO, it's bug in fiddler. it must not assume that CONNECT used only for SSL

Hi all.

 

I am trying to debug a (java) application that does not obey proxy rules. As a result I have been forced to use Proxifer to redirect all traffic to Fiddler. This seems to be working fine and I can see the initial SSL negotiation but the actual request that follows fails with the following line in the log:

17:36:17:8627 Session #1868 detaching ServerPipe. Had: 'direct->https/X.X.X.X:5989' but needs: 'direct->https/X.X.X.X:443'

X.X.X.X is the same (and correct) on both sides. The server I am connecting to is indeed running an SSL service on port 5989 (and cannot be changed to 443).

Any ideas on what I can do to fix this?

Fiddler version: v5.0.20173.50948 for .NET 4.6.

Hi,

I Need some help

I want to connet to a Server by JavaScript from my Homeserver.

The Server i want to connect, uses "Digest authentification", when I attempt, I get the following Response:

{"jsonrpc":"2.0","result":{"realm":"Insta-NetBox","domain":"","uri":"/jsonrpc//management","nonce":"d4d4cceede1cd30ad082bab2d18b03f7741db5d2","opaque":"736873746d383364706b3772746b3335356b70356d7539306636","algorithm":"sha","qop":"auth"},"id":"1"

 

I know the Password (I can log in with a web-application).

 {"jsonrpc":"2.0", "method":"userLoginDigest", "params":{"userName":"admin", "uri":"/jsonrpc//management", "qop":"auth", "cnonce":"77F63B06D02BA690D0AC929CF785F009E75F2BD" , "nc":"00000001" , "response":"ef0caa10c9dd87225e459312cd9d8686d6f6fcbc" , "realm":"Insta-NetBox", "nonce":"d4d4cceede1cd30ad082bab2d18b03f7741db5d2", "algorithm":"sha", "opaque":"736873746d383364706b3772746b3335356b70356d7539306636"}, "id":"2"}

I get "Authorization failed"....

according to RFC2617 I calculate the hashesfor the Response string and the "cnonce" value als a 40 sign random-string

Does someone have a chance to verify my calculation?

 

 

 

 

 

Hi

I've just downloaded FiddlerCore and I plan to use it my .net core project.

My .net Core SDK version is v2.1.4 . The latest one when I write this post. 

I use the sample code, I did "dotnet restore -s <path_to_nupkg_files>" , run the code trusted the certificate...and..... nothing got captured.

Edge,IE. Nothing . Presssing L, S shows nothing..

 

Any ideas what I'm doing wrong ?

 

Best regards

 

 

 

I have downloaded fiddler and mono and put fiddler on my desktop

and when get to the step of mono Fiddler.exe, it says 

 

Cannot open assembly 'Fiddler.exe': No such file or directory.

 

Please help!

Thanks

Hi there,

I got the following error on the first launching Fiddler after installed it on windows 10:

 

---------------------------
Loading custom MIME mappings failed
---------------------------
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.


There is an error in XML document (0, 0).


Type: System.InvalidOperationException
Source: System.Xml
   at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)


   at System.Xml.Serialization.XmlSerializer.Deserialize(Stream stream)


   at Fiddler.XmlFileMimeMappings..ctor(String filePath) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\MimeMapping\XmlFileMimeMappings.cs:line 40


   at Fiddler.frmViewer.š(Object , EventArgs ) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Viewer.cs:line 9816


System.Xml.XmlException: Root element is missing.


   at System.Xml.XmlTextReaderImpl.Throw(Exception e)


   at System.Xml.XmlTextReaderImpl.ParseDocumentContent()


   at System.Xml.XmlReader.MoveToContent()


   at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderList1.Read3_ArrayOfMimeMap()
Fiddler v4.6.20173.38786 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.10586.0]
---------------------------
OK  
---------------------------

Received this error when starting up Telerik after install

---------------------------
Generating default MIME mappings file failed
---------------------------
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.

Access to the path 'C:\Users\donnie\Documents\Fiddler2\CustomMimeMappings.xml' is denied.

Type: System.UnauthorizedAccessException
Source: mscorlib
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)

   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)

   at System.IO.FileStream..ctor(String path, FileMode mode)

   at Fiddler.frmViewer.š(Object , EventArgs ) in C:\JenkinsHome\jobs\OrchestraFiddlerReleaseBuild\workspace\Fiddler2\Viewer.cs:line 9782


Fiddler v5.0.20173.49666 (x64 AMD64) [.NET 4.0.30319.36392 on Microsoft Windows NT 6.0.6002 Service Pack 2] 
---------------------------
OK   
---------------------------

Hi,

Nuget has a package for fiddler core, I know that the user created this package is named like fiddler's developer, but still, this user can fake.

 

Can I trust this nuget? Was it really uploaded by Telerik?

Hello,

My company has recently started using a proxy (which I can see set in the Local Area Network (LAN) Settings dialog.

Now, when I try and proxy my traffic through Fiddler from the urllib2 python library it does not get captured by Fiddler.  However, when I turn the Windows proxy off the traffic does get captured by Fiddler.

Does any body have an idea about why this would be?  Is there some contention between the way that Windows proxies traffic and the way Fiddler proxies traffic?

Thanks,

Douglas.