private byte[] ManipulateServerResponseBeforeForwarding(byte[] serverResponse)
{
//Chk for too short (invalid) server responses
if (serverResponse.Length < 4)
{
if (Configuration.IsDebugModeOn)
{
_CLI.Out("Error. Too short server response. Nothing to manipulate. (Client ID: " + _ClientIdCounter.ToString() + ")");
}
return(serverResponse);
}
ServerResponse SRep = null;
//First, check if every response needs to be modified or only HTMLs
if (Configuration.ProxyHtmlFilesOnly)
{
//Split the response to header and body if only HTML files need modification
SRep = SplitServerResponse(serverResponse, Configuration.ProxyHtmlFilesOnly);
}
else
{
//If all response needs to be modified, then convert the response to string
string asStr = Encoding.UTF8.GetString(serverResponse);
// Replace hostname in every request
string hostNameToReplace = Configuration.WebServerAddress.ToString();
string newHostName = Configuration.LocalAddress.ToString() + ":" + Configuration.ListenerPortNumber.ToString();;
string strResult = asStr.Replace(hostNameToReplace, newHostName);
//Remove content length
DeleteContentLength(ref strResult);
//Convert the result back to bytes, and return it
return(Encoding.UTF8.GetBytes(strResult));
}
//This runs when only HTMLs whould be modified.
//If header exists, then manipulate it
if (SRep.Header != null)
{
if (SRep.isHtmlTextContent == true)
{
//If only HTML files should be modified an this is a html file in the response
//Remove content length section from the response
DeleteContentLength(ref SRep);
//Replace the server's address with proxy address in both header and body
ReplaceAddressInServerResponse(ref SRep);
//Add WeSOF Guid if not present
_Cookie.EnsureGUIDisPresent(ref SRep);
//Pass it to the MVT manager
PassToMVTManager(ref SRep);
//Check if conversion is triggered by the last url
//This may also result in a test completion, if it reaches significance
ConversionManager.CheckUrlAgainstConversionTriggers(_LastRequestedURL, SRep.Cookie.Wesof_GUID);
//Merge the modified header and body too
MergeModifiedBodyAndHeader(ref SRep);
return(SRep.MergedModified);
}
if (SRep.isHtmlTextContent == null || SRep.isHtmlTextContent == false)
{
//Remove content length section from the response
DeleteContentLength(ref SRep);
//Merge the modified header and body too
MergeModifiedBodyAndHeader(ref SRep);
return(SRep.MergedModified);
//Return server response as is
//return serverResponse;
}
}
else
{
//The response does not have a header, or the splitter method failed. :-/
//Return the original message without any manipulation
return(serverResponse);
}
//This should never run
if (Configuration.IsDebugModeOn)
{
_CLI.Out("Error. Could not analyse the server response. Forwarding as-is. (Client ID: " + _ClientIdCounter.ToString() + ")");
}
return(serverResponse);
}