Retrieve outgoing data.

[CoolPrasad]

Hi,
    I am trying to write an extension in c++ which captures and dumps
all the outgoing data, which includes headers and body.

   Till now, I have implemented a http handler which replaces the
original handler, so that I can create my own channel, in my channel I
have implemented the nsIUploadChannel interface which gathers the POST
data, the headers are available in the ASyncOpen method.

  But the problem I am facing is that the SetUploadStream method is
called only for the first chunk of data, I was under the assumption
that it would either give me all the data in one go, or it would be
called multiple times, but none of the above happens. Any help is
appreciated.

This is how my code looks like

NS_IMETHODIMP DLPHTTPChannel::SetUploadStream(nsIInputStream
*aInputStream, const nsACString & aContentType, PRInt32
aContentLength)
{
        if (NULL != aInputStream)
        {
                PRUint32 uiContentLength = 0;
                aInputStream->Available(&uiContentLength);
                if (uiContentLength > 0)
                {
                        //According to the doc. both the interfaces should be 
implemented.
                        nsCOMPtr<nsISeekableStream> spSeekableInputStream =
do_QueryInterface (aInputStream);
                        spSeekableInputStream->Seek 
(nsISeekableStream::NS_SEEK_SET, 0);

                        PRUint32 uiTotalDateRead = 0;
                        while (uiTotalDateRead != uiContentLength)
                        {
                                PRUint32 uiDataRead = 0;
                                PRUint32 uiDataToBeRead = uiContentLength - 
uiTotalDateRead;
                                AutoPtr<char> spData = AutoPtr<char> (new char 
[uiDataToBeRead]);

                                aInputStream->Read 
(spData.get(),uiDataToBeRead, &uiDataRead);

                                C_LOG_DEBUG_MSG_1 (_T("Post Data : \n%s"), 
String (uiDataRead,
spData.get()).c_str());

                                //Rewinding the stream
                                spSeekableInputStream->Seek 
(nsISeekableStream::NS_SEEK_SET,
uiDataRead);

                                uiTotalDateRead += uiDataRead;
                        }
                        //Rewinding the stream
                        spSeekableInputStream->Seek 
(nsISeekableStream::NS_SEEK_SET, 0);
                }
        }

        //return m_spMozillaHTTPChannel->Cancel (NS_ERROR_ABORT);

    return m_spUploadChannel->SetUploadStream (aInputStream,
aContentType, aContentLength);
}


Plz help.

Thanks
Prasad
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