FiddlerScript.js

FiddlerScript.js

//https://gist.github.com/1368507

import System;
import System.Windows.Forms;
import Fiddler;
import System.Text.RegularExpressions;

// INTRODUCTION
// This is the FiddlerScript Rules file, which creates some of the menu commands and
// other features of Fiddler. You can edit this file to modify or add new commands.
//
// The original version of this file is named SampleRules.js and it is in the
// \Program Files\Fiddler\ folder. When Fiddler first starts, it creates a copy named
// CustomRules.js inside your \Documents\Fiddler2\Scripts folder. If you make a 
// mistake in editing this file, simply delete the CustomRules.js file and restart
// Fiddler. A fresh copy of the default rules will be created from the original
// sample rules file.

// GLOBALIZATION NOTE:
// Be sure to save this file with UTF-8 Encoding if using any non-ASCII characters
// in strings, etc.

// JScript Reference
// http://www.fiddler2.com/redir/?id=msdnjsnet
//
// FiddlerScript Reference
// http://www.fiddler2.com/redir/?id=fiddlerscriptcookbook
//
// FiddlerScript Editor: 
// http://www.fiddler2.com/redir/?id=fiddlerscripteditor

class Handlers
{
	public static BindUIColumn("HTTPMethod")
	function CalcMethodCol(oS: Session){
		if (null != oS.oRequest) return oS.oRequest.headers.HTTPMethod; else return String.Empty; 
	}
	
	public static BindUIColumn("Time Taken")
	function CalcTimingCol(oS: Session){
		var sResult = String.Empty;
		if ((oS.Timers.ServerDoneResponse > oS.Timers.ClientDoneRequest))
		{
			sResult = String.Format("{0:h:mm:ssss.ffff}", 
				(oS.Timers.ServerDoneResponse - oS.Timers.ClientDoneRequest));
		}
		return sResult;
	}

	public static RulesOption("Hide 304s")
	var m_Hide304s: boolean = false;

	// Cause Fiddler to override the Accept-Language header with one of the defined values
	public static RulesOption("Request &Japanese Content")
	var m_Japanese: boolean = false;	

	// Cause Fiddler to override the User-Agent header with one of the defined values
	RulesString("&User-Agents", true) 
	RulesStringValue(0,"Netscape &3", "Mozilla/3.0 (Win95; I)")
	RulesStringValue(1,"WinPhone7", "Mozilla/4.0 (compatible: MSIE 7.0; Windows Phone OS 7.0; Trident/3.1; IEMobile/7.0; SAMSUNG; SGH-i917)")
	RulesStringValue(2,"WinPhone7.5", "Mozilla/5.0 (compatible: MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; SAMSUNG; SGH-i917)")
	RulesStringValue(3,"&Safari5 (Win7)", "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1")
	RulesStringValue(4,"Safari5 (Mac)", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7) AppleWebKit/534.48.3 (KHTML, like Gecko) Version/5.1 Safari/534.48.3")
	RulesStringValue(5,"IPAD", "Mozilla/5.0 (iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B314 Safari/531.21.10")	
	RulesStringValue(6,"IE &6 (XPSP2)", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)")
	RulesStringValue(7,"IE &7 (Vista)", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1)")
	RulesStringValue(8,"IE 8 (Win2k3 x64)", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; WOW64; Trident/4.0)")
	RulesStringValue(9,"IE &8 (Win7)", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)")
	RulesStringValue(10,"IE 8 (IE7 CompatMode)", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0)")
	RulesStringValue(11,"IE 9 (Win7)", "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)")
	RulesStringValue(12,"IE 10 (Win7)", "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)")
	RulesStringValue(13,"&Opera", "Opera/9.80 (Windows NT 6.1; U; en) Presto/2.8.131 Version/11.10")
	RulesStringValue(14,"&Firefox 3.6", "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.7) Gecko/20100625 Firefox/3.6.7")
	RulesStringValue(15,"&Firefox 4", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1")
	RulesStringValue(16,"&Firefox 7", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0) Gecko/20100101 Firefox/7.0")
	RulesStringValue(17,"&Firefox (Mac)", "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3")
	RulesStringValue(18,"Chrome", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534.24 (KHTML, like Gecko) Chrome/11.0.696.60 Safari/534.24")
	RulesStringValue(19,"GoogleBot Crawler", "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)")
	RulesStringValue(20,"&Custom...", "%CUSTOM%")
	public static var sUA: String = null;
	
	// Cause Fiddler to delay HTTP traffic to simulate typical 56k modem conditions
	public static RulesOption("Simulate &Modem Speeds", "Per&formance")
	var m_SimulateModem: boolean = false;
	
	// Removes HTTP-caching related headers and specifies "no-cache" on requests and responses
	public static RulesOption("&Disable Caching", "Per&formance")
	var m_DisableCaching: boolean = false;

	// Show the duration between the start of Request.Send and Response.Completed in Milliseconds
	public static RulesOption("&Show Time-to-Last-Byte", "Per&formance")
	var m_ShowTTLB: boolean = false;

	// Show the time of response completion
	public static RulesOption("Show Response &Timestamp", "Per&formance")
	var m_ShowTimestamp: boolean = false;

	public static RulesOption("Cache Always &Fresh", "Per&formance")
	var m_AlwaysFresh: boolean = false;
    	
	// Force a manual reload of the script file.  Resets all
	// RulesOption variables to their defaults.
	public static ToolsAction("Reset Script")
	function DoManualReload(){ 
		FiddlerObject.ReloadScript();
	}

	public static ContextAction("Decode Selected Sessions")
	function DoRemoveEncoding(oSessions: Session[]){
		for (var x = 0; x < oSessions.Length; x++){
			oSessions[x].utilDecodeRequest();
			oSessions[x].utilDecodeResponse();
		}
	}

	static function OnBoot(){
		//		MessageBox.Show("Fiddler has finished booting");
		//		System.Diagnostics.Process.Start("iexplore.exe");

		//		FiddlerObject.UI.ActivateRequestInspector("HEADERS");
		//		FiddlerObject.UI.ActivateResponseInspector("HEADERS");
	}
	
	static function OnShutdown(){
		//		MessageBox.Show("Fiddler has shutdown");
	}
	
	static function OnAttach(){
		//		MessageBox.Show("Fiddler is now the system proxy");
		//		System.Diagnostics.Process.Start("proxycfg.exe", "-u");	// Notify WinHTTP of proxy change
	}

	static function OnDetach(){
		//		MessageBox.Show("Fiddler is no longer the system proxy");
		//		System.Diagnostics.Process.Start("proxycfg.exe", "-u");	// Notify WinHTTP of proxy change
	}

	static function OnBeforeRequest(oSession: Session)
	{
		// Sample Rule: Color ASPX requests in RED
		//		if (oSession.uriContains(".aspx")) {	oSession["ui-color"] = "red";	}	

		// Sample Rule: Flag POSTs to fiddler2.com in italics
		//		if (oSession.HostnameIs("www.fiddler2.com") && oSession.HTTPMethodIs("POST")) {	oSession["ui-italic"] = "yup";	}	

		// Sample Rule: Break requests for URLs containing "/sandbox/"
		if (oSession.uriContains("/sandbox/")){
			oSession.oFlags["x-breakrequest"] = "yup";	// Existence of the x-breakrequest flag creates a breakpoint; the "yup" value is unimportant.
		}

		if ((null != gs_ReplaceToken) && (oSession.url.indexOf(gs_ReplaceToken)>-1)){   // Case sensitive
			oSession.url = oSession.url.Replace(gs_ReplaceToken, gs_ReplaceTokenWith); 
		}
		if ((null != gs_OverridenHost) && (oSession.host.toLowerCase() == gs_OverridenHost)){    
			oSession["x-overridehost"] = gs_OverrideHostWith; 
		}

		if ((null!=bpRequestURI) && oSession.uriContains(bpRequestURI)){
			oSession["x-breakrequest"]="uri";
		}		
		
		if ((null!=bpMethod) && (oSession.HTTPMethodIs(bpMethod))){
			oSession["x-breakrequest"]="method";
		}	
		
		if ((null!=uiBoldURI) && oSession.uriContains(uiBoldURI)){
			oSession["ui-bold"]="QuickExec";
		}		
		
		if (m_SimulateModem){
			// Delay sends by 300ms per KB uploaded.
			oSession["request-trickle-delay"] = "300"; 
			// Delay receives by 150ms per KB downloaded.
			oSession["response-trickle-delay"] = "150"; 
		}

		if (m_DisableCaching){
			oSession.oRequest.headers.Remove("If-None-Match");
			oSession.oRequest.headers.Remove("If-Modified-Since");
			oSession.oRequest["Pragma"] = "no-cache";
		}

		
		if(oSession.oRequest.headers.ExistsAndContains("Accept","text/css"))
		{
			oSession["ui-color"]="darkgreen";
		}
			
		// User-Agent Overrides
		if (null != sUA){
			oSession.oRequest["User-Agent"] = sUA; 
		}	
		
		if (m_Japanese){
			oSession.oRequest["Accept-Language"] = "ja";
		}

		if (m_AlwaysFresh && (oSession.oRequest.headers.Exists("If-Modified-Since") || oSession.oRequest.headers.Exists("If-None-Match")))
		{	
			oSession.utilCreateResponseAndBypassServer();
			oSession.responseCode = 304;
			oSession["ui-backcolor"] = "Lavender";
		}
		
		if(oSession.oRequest["User-Agent"].Contains('Microsoft Office'))
			oSession["ui-hide"] = "true";
		
	
	}
    
	//
	// If a given session has response streaming enabled, then the OnBeforeResponse function 
	// is actually called AFTER the response was returned to the client.
	//
	// In contrast, this OnPeekAtResponseHeaders method is called before the response headers are 
	// sent to the client (and before the body is read from the server).  Hence this is an opportune time 
	// to disable streaming (oSession.bBufferResponse = true) if there is something in the response headers 
	// which suggests that tampering with the response body is necessary.
	// 
	// Note: oSession.responseBodyBytes is not available within this function!
	//
	static function OnPeekAtResponseHeaders(oSession: Session) {
		//FiddlerApplication.Log.LogFormat("Session {0}: Response header peek shows status is {1}", oSession.id, oSession.responseCode);
		if (m_DisableCaching) {
			oSession.oResponse.headers.Remove("Expires");
			oSession.oResponse["Cache-Control"] = "no-cache";
		}

		if ((bpStatus>0) && (oSession.responseCode == bpStatus)){
			oSession["x-breakresponse"]="status";
			oSession.bBufferResponse = true;
		}
		
		if ((null!=bpResponseURI) && oSession.uriContains(bpResponseURI)){
			oSession["x-breakresponse"]="uri";
			oSession.bBufferResponse = true;
		}		

	}

	static function breakresponse_headers_ExistsAndContains(oSession:Session, headerName:String, headerValue:String)
	{
		//Pause a response containing JavaScript to allow hand-editing
		if (oSession.oResponse.headers.ExistsAndContains(headerName, headerValue)){
			oSession["x-breakresponse"]="reason is JScript";
		} 
	}
		
	static function OnBeforeResponse(oSession: Session)
	{	
		//if (m_ShowTimestamp){
		//oSession["ui-customcolumn"] = DateTime.Now.ToString("H:mm:ss.ffff") + " " + oSession["ui-customcolumn"]; 
		//}

		//if (m_ShowTTLB){
		//oSession["ui-customcolumn"] = oSession.oResponse.iTTLB + "ms " + oSession["ui-customcolumn"]; 
		//}

		if (m_Hide304s && oSession.responseCode == 304){
			oSession["ui-hide"] = "true";
		}
		
	
		//tfs__fix_ct(oSession);
		show_only_with_header__X_AspNetMvc_Version_3__when_responsecode_eq_200(oSession);
		//show_only_content_types_html_and_json(oSession);
		//wellright__customcolumn_monitor_reward_panel(oSession);
	}
	
	static function show_only_with_header__X_AspNetMvc_Version_3__when_responsecode_eq_200(oSession:Session)
	{
		if (oSession.bHasResponse && oSession.oResponse.headers.HTTPResponseCode == 200 && !oSession.oResponse.headers.ExistsAndContains("X-AspNetMvc-Version","3.0"))
		{
			oSession["ui-hide"] = "true";
		}
	}

	static function show_only_content_types_html_and_json(oSession:Session)
	{
		if (!(  oSession.oResponse.headers.ExistsAndContains("Content-Type", "text/html") || 
			    oSession.oResponse.headers.ExistsAndContains("Content-Type", "application/json") || 
			    (oSession.oResponse.headers.ExistsAndContains("X-Powered-By", "ASP.NET") && oSession.oResponse.headers.ExistsAndContains("Content-Length", "0"))
			 ))
		{
			oSession["ui-hide"] = "true";
		}
	}
			
	static function wellright__customcolumn_monitor_reward_panel(oSession:Session)
	{
		if(oSession["ui-hide"] == "true") return;
		
		if (!(oSession.oResponse.headers.ExistsAndContains("Content-Type", "text/html"))) return;
		
		oSession.utilDecodeResponse();

		// Create a array of strings we're looking for.
		var oFindStrings = new Array( "InitializeRewardPanel", "updateCoinProgressAndLevelUp", "updateCurrentPoints", "updateCoinAndProgress", "updateLevelProgress", "advanceLevel", "updateNextLevelPoints", "updateCoins", "LargeRewards.swf", "LevelUpRewards.swf");

		// For each target string, check the response to see if it's present.
		oSession["ui-customcolumn"]=String.Empty;
			
		var iEach=0;
		var oBody = null;
		for (iEach; iEach<oFindStrings.length; iEach++){
			if (oSession.utilFindInResponse(oFindStrings[iEach], false)>0) {
				
					
				if(oBody == null) {
					oBody = System.Text.Encoding.UTF8.GetString(oSession.responseBodyBytes); }
					
				var panelData = null;

					if(oFindStrings[iEach].indexOf('Initialize') >= 0 || oFindStrings[iEach].indexOf('update') >= 0)
					{	
						panelData = Regex.Match(oBody,"("+oFindStrings[iEach]+"[^;]+;)").Groups[1].Value;
						oSession["ui-customcolumn"] += panelData;
						oSession["ui-color"]="brown";
					
						if(oFindStrings[iEach].indexOf('update') >= 0)
							oSession["ui-color"]="purple";
					}
				
					
				if(panelData==null) {
					oSession["ui-customcolumn"] += oFindStrings[iEach]+"; "; 
				}
			}
		}	
	}
			
	
	static function tfs__fix_ct(oSession:Session)
	{
	
		
		if(oSession.oRequest.host.IndexOf('tfs.amnap.am.com') >= 0 && oSession.uriContains("AttachFileHandler.ashx"))
		{
			if(oSession.oResponse.headers["Content-Type"] == "application/octet-stream" && oSession.oResponse.headers["content-disposition"].IndexOf('.PNG') > 0) {
				oSession.oResponse.headers["Content-Type"] = "image/png"; }
			if(oSession.oResponse.headers["Content-Type"] == "application/octet-stream" && oSession.oResponse.headers["content-disposition"].IndexOf('.JPG') > 0) {
				oSession.oResponse.headers["Content-Type"] = "image/jpeg"; }
		}
										
	}
		
	static function Main()
	{
  		var today: Date = new Date();
		FiddlerObject.StatusText = " CustomRules.js was loaded at: " + today;
		// Uncomment to add a "Server" column containing the response "Server" header, if present
		// FiddlerObject.UI.lvSessions.AddBoundColumn("Server", 50, "@response.server");
	}

	// These static variables are used for simple breakpointing & other QuickExec rules 
	static var bpRequestURI:String = null;
	static var bpResponseURI:String = null;
	static var bpStatus:int = -1;
	static var bpMethod: String = null;
	static var uiBoldURI: String = null;
	static var gs_ReplaceToken: String = null;
	static var gs_ReplaceTokenWith: String = null;
	static var gs_OverridenHost: String = null;
	static var gs_OverrideHostWith: String = null;
	
	// The OnExecAction function is called by either the QuickExec box in the Fiddler window,
	// or by the ExecAction.exe command line utility.
	static function OnExecAction(sParams: String[]){
	FiddlerObject.StatusText = "ExecAction: " + sParams[0];
		
	var sAction = sParams[0].toLowerCase();
	switch (sAction){
	case "bold":
		if (sParams.Length<2) {uiBoldURI=null; FiddlerObject.StatusText="Bolding cleared"; return;}
		uiBoldURI = sParams[1]; FiddlerObject.StatusText="Bolding requests for " + uiBoldURI;
		break;
	case "bp":
    		FiddlerObject.alert("bpu = breakpoint request for uri\nbpm = breakpoint request method\nbps=breakpoint response status\nbpafter = breakpoint response for URI");
		break;
	case "bps":
		if (sParams.Length<2) {bpStatus=-1; FiddlerObject.StatusText="Response Status breakpoint cleared"; return;}
		bpStatus = parseInt(sParams[1]); FiddlerObject.StatusText="Response status breakpoint for " + sParams[1];
		break;
	case "bpv":
	case "bpm":
		if (sParams.Length<2) {bpMethod=null; FiddlerObject.StatusText="Request Method breakpoint cleared"; return;}
		bpMethod = sParams[1].toUpperCase(); FiddlerObject.StatusText="Request Method breakpoint for " + bpMethod;
		break;
	case "bpu":
		if (sParams.Length<2) {bpRequestURI=null; FiddlerObject.StatusText="RequestURI breakpoint cleared"; return;}
		bpRequestURI = sParams[1]; 
		FiddlerObject.StatusText="RequestURI breakpoint for "+sParams[1];
	break;
	case "bpafter":
		if (sParams.Length<2) {bpResponseURI=null; FiddlerObject.StatusText="ResponseURI breakpoint cleared"; return;}
		bpResponseURI = sParams[1]; 
		FiddlerObject.StatusText="ResponseURI breakpoint for "+sParams[1];
	break;
	case "overridehost":
		if (sParams.Length<3) {gs_OverridenHost=null; FiddlerObject.StatusText="Host Override cleared"; return;}
		gs_OverridenHost = sParams[1].toLowerCase();
		gs_OverrideHostWith = sParams[2];
		FiddlerObject.StatusText="Connecting to [" + gs_OverrideHostWith + "] for requests to [" + gs_OverridenHost + "]";
		break;
	case "urlreplace":
		if (sParams.Length<3) {gs_ReplaceToken=null; FiddlerObject.StatusText="URL Replacement cleared"; return;}
		gs_ReplaceToken = sParams[1];
		gs_ReplaceTokenWith = sParams[2].Replace(" ", "%20");  // Simple helper
		FiddlerObject.StatusText="Replacing [" + gs_ReplaceToken + "] in URIs with [" + gs_ReplaceTokenWith + "]";
		break;
	case "allbut":
	case "keeponly":
		if (sParams.Length<2) { FiddlerObject.StatusText="Please specify Content-Type to retain during wipe."; return;}
		FiddlerObject.UI.actSelectSessionsWithResponseHeaderValue("Content-Type", sParams[1]);
		FiddlerObject.UI.actRemoveUnselectedSessions();
		FiddlerObject.UI.lvSessions.SelectedItems.Clear();
		FiddlerObject.StatusText="Removed all but Content-Type: " + sParams[1];
		break;
	case "stop":
    		FiddlerObject.UI.actDetachProxy();
    		break;
   	case "start":
    		FiddlerObject.UI.actAttachProxy();
    		break;
   	case "cls":
   	case "clear":
    		FiddlerObject.UI.actRemoveAllSessions();
    		break;
	case "g":
	case "go":
		FiddlerObject.UI.actResumeAllSessions();
		break;
   	case "help":
		Utilities.LaunchHyperlink("http://www.fiddler2.com/redir/?id=quickexec");
    		break;
   	case "hide":
    		FiddlerObject.UI.actMinimizeToTray();
    		break;
	case "log":
		FiddlerApplication.Log.LogString((sParams.Length<2) ? FiddlerApplication.Log.LogString("User couldn't think of anything to say...") : sParams[1]);
		break;   		
   	case "nuke":
		FiddlerObject.UI.actClearWinINETCache();
		FiddlerObject.UI.actClearWinINETCookies(); 
	break;
   	case "show":
    		FiddlerObject.UI.actRestoreWindow();
    		break;
	case "tail":
		if (sParams.Length<2) { FiddlerObject.StatusText="Please specify # of sessions to trim the session list to."; return;}
		FiddlerObject.UI.TrimSessionList(int.Parse(sParams[1]));
		break;
   	case "quit":
    		FiddlerObject.UI.actExit();
    		break;
   	case "dump":
    		FiddlerObject.UI.actSelectAll();
    		FiddlerObject.UI.actSaveSessionsToZip(CONFIG.GetPath("Captures") + "dump.saz");
    		FiddlerObject.UI.actRemoveAllSessions();
    		FiddlerObject.StatusText = "Dumped all sessions to " + CONFIG.GetPath("Captures") + "dump.saz";
    		break;
    		
    	default:
    		if (sAction.StartsWith("http") || sAction.StartsWith("www")){
    			System.Diagnostics.Process.Start(sParams[0]);
    		}
    		else
    		FiddlerObject.StatusText = "Requested ExecAction: '" + sAction + "' not found. Type HELP to learn more.";
    	}
	}
	
}