Fiddler's default rules are stored in C:\Users\xxx\Documents\Fiddler2\Scripts\CustomRules.js
What's news?
- RequestResponseTime
- Crawl Sequential URLs
- Replay Sequential URLs
- Filter specific Processes and Domains
- Show Time-to-Last-Byte
- CopyTimers
- Call Sequences DELETE for Rest API with HTTP header
- Clean Header Request & Response
- ...
public static RulesOption("&Show RequestResponseTime", "NREADY Labs")
var m_requestTimeOn: boolean = true;
public static BindUIColumn("RequestResponseTime", 180)
function RequestResponseTime(oS: Session) {
if (oS.Timers != null) {
return oS.Timers.ClientBeginRequest.ToString("HH:mm:ss.ffff") + " -> " + oS.Timers.ClientDoneResponse.ToString("HH:mm:ss.ffff");
}
return String.Empty;
}
public static ToolsAction("Crawl Sequential URLs", "NREADY Lab")
function doCrawl() {
var sBase: String;
var sInt: String;
sBase = FiddlerObject.prompt("Enter base URL with ## in place of the start integer", "http://");
sInt = FiddlerObject.prompt("Start At", "1");
var iFirst = int.Parse(sInt);
sInt = FiddlerObject.prompt("End At", "100");
var iLast = int.Parse(sInt);
for (var x = iFirst; x <= iLast; x++) {
//Replace 's' with your HTTP Request. Note: \ is a special character in JScript
// If you want to represent a backslash in a string constant, double it like \\
var s = "GET " + sBase.Replace("##", x.ToString()) + " HTTP/1.0\r\n\r\n";
var b = false;
while (!b) {
try {
FiddlerObject.utilIssueRequest(s);
b = true;
} catch (e) {
var iT = Environment.TickCount + 10000;
FiddlerObject.StatusText = "Waiting 10 sec because we have too many requests outstanding...";
while (iT > Environment.TickCount) { Application.DoEvents(); }
}
}
}
}
public static ToolsAction("Replay Sequential URLs", "NREADY Lab")
function doReplay() {
var sBase: String;
var sInt: String;
sBase = FiddlerObject.prompt("Enter base URL", "http://");
sInt = FiddlerObject.prompt("Times=", "1");
var n = int.Parse(sInt);
for (var i = 1; i <= n; i++) {
var s = "GET " + sBase + " HTTP/1.1\r\n\r\n";
var b = false;
while (!b) {
try {
FiddlerObject.utilIssueRequest(s);
b = true;
} catch (e) {
var iT = Environment.TickCount + 10000;
FiddlerObject.StatusText = "Waiting 10 sec because we have too many requests outstanding...";
while (iT > Environment.TickCount) { Application.DoEvents(); }
}
}
}
}
Filter traffic with specific process and specific domain request. Declare the Rule option before OnBeforeRequest() function:
public static RulesOption("&Filter Processes and Domain", "NREADY Labs")
var m_filterOn: boolean = true;Inside OnBeforeRequest():
if (m_filterOn) {
oSession["ui-hide"] = "true";
// Some common processes: IE - iexplore.exe; chrome - chrome.exe, MS Edge = msedge, IIS Express - iisexpress.exe, Powershell - powershell.exe
// List of processes to filter on
var processlist = ["chrome", "msedge", "iisexpress", "powershell"];
// List of domain names to filter on
var host = ["localhost", "nready.net"];
for (var j = 0; j < processlist.length; j++) {
if (oSession.LocalProcess.Contains(processlist[j])) {
for (var i = 0; i < host.length; i++) {
if (oSession.HostnameIs(host[i])) {
oSession["ui-hide"] = null;
}
}
}
}
}Show the duration between the start of Request.Send and Response.Completed in Milliseconds with color in red, yellow or orange.
public static RulesOption("&Show Time-to-Last-Byte", "NREADY Labs")
var m_ShowTTLB: boolean = true;Inside OnBeforeResponse()
if (m_ShowTTLB) {
oSession["ui-customcolumn"] = oSession.oResponse.iTTFB + "/" + oSession.oResponse.iTTLB + "ms " + oSession["ui-customcolumn"];
if (oSession.oResponse.iTTLB >= 1000) { oSession["ui-backcolor"] = "yellow"; }
if (oSession.oResponse.iTTLB >= 3000) { oSession["ui-backcolor"] = "orange"; }
if (oSession.oResponse.iTTLB >= 10000) { oSession["ui-backcolor"] = "red"; }
}
public static ContextAction("CopyTimers")
function CopyTimers(oSessions: Fiddler.Session[]) {
if (null == oSessions) {
MessageBox.Show("Please select sessions to copy timers for.", "Nothing to Do");
return;
}
var s: System.Text.StringBuilder = new System.Text.StringBuilder();
for (var x = 0; x < oSessions.Length; x++) {
s.AppendFormat("ClientConnected {0}\nClientDoneRequest {1}\nServerConnected {2}\nServerGotRequest {3}\nServerBeginResponse {4}\nServerDoneResponse {5}\nClientBeginResponse {6}\nClientDoneResponse {7}\r\n",
oSessions[x].Timers.ClientConnected,
oSessions[x].Timers.ClientDoneRequest,
oSessions[x].Timers.ServerConnected,
oSessions[x].Timers.ServerGotRequest,
oSessions[x].Timers.ServerBeginResponse,
oSessions[x].Timers.ServerDoneResponse,
oSessions[x].Timers.ClientBeginResponse,
oSessions[x].Timers.ClientDoneResponse
);
}
Utilities.CopyToClipboard(s.ToString());
// MessageBox.Show("Done.");
FiddlerObject.StatusText = "Coppied ...";
}Use for Sequence call Detele for Restful API with header got from Session[]. The Session[] is from ContextMenu action on any request that we choice
public static ContextAction("Sequence DELETE")
function Seq_DELETE(arrSess: Session[]) {
var oRH = '';
var headerBuilder: System.Text.StringBuilder = new System.Text.StringBuilder();
var sBase: String;
var sInt: String;
var sAuth: String;
var sCookie: String;
var baseURL = '';
var baseAuthorization = '';
var baseCooki = '';
for (var i: int = 0; i < arrSess.Length; i++) {
baseURL = arrSess[i].fullUrl;
baseAuthorization = arrSess[i].oRequest["Authorization"];
baseCooki = arrSess[i].oRequest["Cookie"];
}
sBase = FiddlerObject.prompt("Base URL with ## in place of the start integer", baseURL);
sInt = FiddlerObject.prompt("Start At", "1");
var iFirst = int.Parse(sInt);
sInt = FiddlerObject.prompt("End At", "100");
var iLast = int.Parse(sInt);
sAuth = FiddlerObject.prompt("Authorization", baseAuthorization);
sCookie = FiddlerObject.prompt("Cookie", baseCooki);
for (var x = iFirst; x <= iLast; x++) {
headerBuilder.AppendFormat("DELETE {0} HTTP/1.1\r\nAuthorization: {1}\r\nCookie: {2}\r\n\r\n",
sBase.Replace("##", x.ToString()),
sAuth,
sCookie);
var b = false;
while (!b) {
try {
FiddlerObject.utilIssueRequest(headerBuilder);
b = true;
} catch (e) {
// var iT = Environment.TickCount + 2000;
MessageBox.Show(e.ToString());
//FiddlerObject.StatusText = e.ToString();// "Waiting 2 sec because we have too many requests outstanding...";
// while (iT > Environment.TickCount) { Application.DoEvents(); }
}
}
}
MessageBox.Show("Done ...");
FiddlerObject.StatusText = "Done ...";
}public static ContextAction("Clean Header Request & Response")
function doClean(arrSess: Session[]) {
for (var i: int = 0; i < arrSess.Length; i++) {
arrSess[i].utilDecodeResponse();
var oRH = arrSess[i].oRequest.headers;
oRH.RemoveRange(["Cookie",
"Authorization",
"User-Agent",
"Accept"
]);
oRH = arrSess[i].oResponse.headers;
oRH.RemoveRange(["X-Powered-By",
"Last-Modified",
"Accept-Ranges",
"Connection",
"Server",
"Cache-Control",
"Date",
"X-Cache",
"Expires",
"Age",
"Access-Control-Allow-Origin",
"X-Frame-Options",
"X-XSS-Protection",
"Keep-Alive"
]);
}
MessageBox.Show("Done");
}- Refer to: http://fiddlerbook.com/Fiddler/dev/ScriptSamples.asp
- https://www.telerik.com/blogs/understanding-fiddlerscript
- https://blogs.msdn.microsoft.com/aaddevsup/2018/09/26/how-to-filter-fiddler-capture-traffic-using-host-name-and-process-name/
- Nam Le, leqnam@live.com, https://nready.net