|
|
(function (window) {
|
|
|
'use strict';
|
|
|
|
|
|
var buildContextString = function (contextLines) {
|
|
|
var context = '';
|
|
|
if (contextLines) {
|
|
|
for (var k = 0; k < contextLines.length; k++) {
|
|
|
try{
|
|
|
var line = contextLines[k];
|
|
|
if (line.length > 300) {
|
|
|
context += '<minified-context>';
|
|
|
}
|
|
|
else {
|
|
|
context += line;
|
|
|
}
|
|
|
|
|
|
}
|
|
|
catch(exc){
|
|
|
context += '<error-parsing-context>';
|
|
|
}
|
|
|
context += '\n';
|
|
|
}
|
|
|
}
|
|
|
return context;
|
|
|
};
|
|
|
|
|
|
var AppEnlight = {
|
|
|
version: '0.4.2',
|
|
|
options: {
|
|
|
apiKey: ''
|
|
|
},
|
|
|
errorReportBuffer: [],
|
|
|
slowReportBuffer: [],
|
|
|
logBuffer: [],
|
|
|
requestInfo: null,
|
|
|
extraInfo: [],
|
|
|
tags: [],
|
|
|
|
|
|
init: function (options) {
|
|
|
var self = this;
|
|
|
if (typeof options.server === 'undefined') {
|
|
|
options.server = 'https://api.appenlight.com';
|
|
|
}
|
|
|
if (typeof options.apiKey === 'undefined') {
|
|
|
options.apiKey = 'undefined';
|
|
|
}
|
|
|
if (typeof options.protocolVersion === 'undefined') {
|
|
|
options.protocolVersion = '0.5';
|
|
|
}
|
|
|
if (typeof options.windowOnError === 'undefined' ||
|
|
|
options.windowOnError === false) {
|
|
|
TraceKit.collectWindowErrors = false;
|
|
|
}
|
|
|
if (typeof options.sendInterval === 'undefined') {
|
|
|
options.sendInterval = 1000;
|
|
|
}
|
|
|
if (typeof options.tracekitRemoteFetching === 'undefined') {
|
|
|
options.tracekitRemoteFetching = true;
|
|
|
}
|
|
|
if (typeof options.tracekitContextLines === 'undefined') {
|
|
|
options.tracekitContextLines = 11;
|
|
|
}
|
|
|
if (options.sendInterval >= 1000) {
|
|
|
this.createSendInterval(options.sendInterval);
|
|
|
}
|
|
|
this.options = options;
|
|
|
this.requestInfo = {url: window.location.href};
|
|
|
this.reportsEndpoint = options.server +
|
|
|
'/api/reports?public_api_key=' + this.options.apiKey +
|
|
|
'&protocolVersion=' + this.options.protocolVersion;
|
|
|
this.logsEndpoint = options.server +
|
|
|
'/api/logs?public_api_key=' + this.options.apiKey +
|
|
|
'&protocolVersion=' + this.options.protocolVersion;
|
|
|
|
|
|
TraceKit.remoteFetching = options.tracekitRemoteFetching;
|
|
|
TraceKit.linesOfContext = options.tracekitContextLines;
|
|
|
TraceKit.report.subscribe(function (errorReport) {
|
|
|
self.handleError(errorReport);
|
|
|
});
|
|
|
},
|
|
|
|
|
|
createSendInterval: function (timeIv) {
|
|
|
var self = this;
|
|
|
this.sendIv = setInterval(function () {
|
|
|
self.sendReports();
|
|
|
self.sendLogs();
|
|
|
}, timeIv);
|
|
|
},
|
|
|
|
|
|
setRequestInfo: function (info) {
|
|
|
for (var i in info) {
|
|
|
this.requestInfo[i] = info[i];
|
|
|
}
|
|
|
},
|
|
|
|
|
|
clearGlobalExtra: function () {
|
|
|
this.extraInfo = [];
|
|
|
},
|
|
|
|
|
|
addGlobalExtra: function (info) {
|
|
|
for (var i in info) {
|
|
|
this.extraInfo.push([i, info[i]]);
|
|
|
}
|
|
|
},
|
|
|
|
|
|
clearGlobalTags: function () {
|
|
|
this.tags = [];
|
|
|
},
|
|
|
|
|
|
addGlobalTags: function (info) {
|
|
|
for (var i in info) {
|
|
|
this.tags.push([i, info[i]]);
|
|
|
}
|
|
|
},
|
|
|
|
|
|
grabError: function (exception, options) {
|
|
|
// we need to catch rethrown exception but throw an error from TraceKit
|
|
|
try {
|
|
|
var report = TraceKit.computeStackTrace(exception);
|
|
|
this.handleError(report, options);
|
|
|
} catch (newException) {
|
|
|
if (exception !== newException) {
|
|
|
throw newException;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
},
|
|
|
|
|
|
handleError: function (errorReport, options) {
|
|
|
/*jshint camelcase: false */
|
|
|
var errorMsg = '';
|
|
|
if (errorReport.mode === 'stack') {
|
|
|
errorMsg = errorReport.name + ': ' + errorReport.message;
|
|
|
}
|
|
|
else {
|
|
|
errorMsg = errorReport.message;
|
|
|
}
|
|
|
var report = {
|
|
|
'client': 'javascript',
|
|
|
'language': 'javascript',
|
|
|
'error': errorMsg,
|
|
|
'occurences': 1,
|
|
|
'priority': 5,
|
|
|
'server': '',
|
|
|
'http_status': 500,
|
|
|
'request': {},
|
|
|
'traceback': [],
|
|
|
'extra': [],
|
|
|
'tags': []
|
|
|
};
|
|
|
report.user_agent = window.navigator.userAgent;
|
|
|
report.start_time = new Date().toJSON();
|
|
|
|
|
|
if (this.requestInfo !== null) {
|
|
|
for (var i in this.requestInfo) {
|
|
|
report[i] = this.requestInfo[i];
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (this.extraInfo !== null) {
|
|
|
report.extra = this.extraInfo;
|
|
|
}
|
|
|
|
|
|
if (this.tags !== null) {
|
|
|
report.tags = this.tags;
|
|
|
}
|
|
|
|
|
|
if (options && typeof options.extra !== 'undefined'){
|
|
|
for (var k in options.extra) {
|
|
|
report.extra.push([k, options.extra[k]]);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (options && typeof options.tags !== 'undefined'){
|
|
|
for (var l in options.tags) {
|
|
|
this.tags.push([l, options.tags[l]]);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (typeof report.request_id === 'undefined' || !report.request_id) {
|
|
|
report.request_id = this.genUUID4();
|
|
|
}
|
|
|
// grab last 100 frames in reversed order
|
|
|
var stackSlice = errorReport.stack.reverse().slice(-100);
|
|
|
for (var j = 0; j < stackSlice.length; j++) {
|
|
|
var context = '';
|
|
|
var frame = stackSlice[j];
|
|
|
try {
|
|
|
if (typeof frame.context !== 'undefined') {
|
|
|
context = buildContextString(frame.context);
|
|
|
}
|
|
|
}
|
|
|
catch (e) {
|
|
|
}
|
|
|
var stackline = {
|
|
|
'cline': context,
|
|
|
'file': frame.url,
|
|
|
'fn': frame.func,
|
|
|
'line': frame.line,
|
|
|
'vars': []
|
|
|
};
|
|
|
report.traceback.push(stackline);
|
|
|
}
|
|
|
if (report.traceback.length > 0) {
|
|
|
var lastFrame = stackSlice[stackSlice.length - 1];
|
|
|
if (typeof lastFrame.context !== 'undefined') {
|
|
|
var ctxString = buildContextString(lastFrame.context);
|
|
|
var msg = ctxString + '\n' + errorMsg;
|
|
|
report.traceback[report.traceback.length - 1].cline = msg;
|
|
|
}
|
|
|
}
|
|
|
this.errorReportBuffer.push(report);
|
|
|
},
|
|
|
log: function (level, message, namespace, uuid) {
|
|
|
if (typeof namespace === 'undefined') {
|
|
|
namespace = window.location.pathname;
|
|
|
}
|
|
|
if (typeof uuid === 'undefined') {
|
|
|
uuid = null;
|
|
|
}
|
|
|
this.logBuffer.push(
|
|
|
{
|
|
|
'log_level': level.toUpperCase(),
|
|
|
'message': message,
|
|
|
'date': new Date().toJSON(),
|
|
|
'namespace': namespace
|
|
|
});
|
|
|
if (this.requestInfo !== null && typeof this.requestInfo.server !== 'undefined') {
|
|
|
this.logBuffer[this.logBuffer.length - 1].server = this.requestInfo.server;
|
|
|
}
|
|
|
},
|
|
|
|
|
|
genUUID4: function () {
|
|
|
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(
|
|
|
/[xy]/g, function (c) {
|
|
|
var r = Math.random() * 16 | 0, v = c === 'x' ? r : r & 0x3 | 0x8;
|
|
|
return v.toString(16);
|
|
|
}
|
|
|
);
|
|
|
},
|
|
|
|
|
|
sendReports: function () {
|
|
|
if (this.errorReportBuffer.length < 1) {
|
|
|
return true;
|
|
|
}
|
|
|
var data = this.errorReportBuffer;
|
|
|
this.submitData(this.reportsEndpoint, data);
|
|
|
this.errorReportBuffer = [];
|
|
|
return true;
|
|
|
},
|
|
|
sendLogs: function () {
|
|
|
if (this.logBuffer.length < 1) {
|
|
|
return true;
|
|
|
}
|
|
|
var data = this.logBuffer;
|
|
|
this.submitData(this.logsEndpoint, data);
|
|
|
this.logBuffer = [];
|
|
|
return true;
|
|
|
},
|
|
|
|
|
|
submitData: function (endpoint, data) {
|
|
|
var xhr = new window.XMLHttpRequest();
|
|
|
if (!xhr && window.ActiveXObject) {
|
|
|
xhr = new window.ActiveXObject('Microsoft.XMLHTTP');
|
|
|
}
|
|
|
xhr.open('POST', endpoint, true);
|
|
|
xhr.setRequestHeader('Content-Type', 'application/json');
|
|
|
xhr.send(JSON.stringify(data));
|
|
|
}
|
|
|
};
|
|
|
window.AppEnlight = AppEnlight;
|
|
|
|
|
|
if (typeof define === 'function' && define.amd) {
|
|
|
define('appenlight', [], function () {
|
|
|
return AppEnlight;
|
|
|
});
|
|
|
}
|
|
|
|
|
|
}(window));
|
|
|
|
|
|
// Version 0.3.1
|
|
|
|
|
|
/*
|
|
|
TraceKit - Cross browser stack traces - github.com/csnover/TraceKit
|
|
|
MIT license
|
|
|
*/
|
|
|
|
|
|
(function(window, undefined) {
|
|
|
if (!window) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var TraceKit = {};
|
|
|
var _oldTraceKit = window.TraceKit;
|
|
|
|
|
|
// global reference to slice
|
|
|
var _slice = [].slice;
|
|
|
var UNKNOWN_FUNCTION = '?';
|
|
|
|
|
|
|
|
|
/**
|
|
|
* _has, a better form of hasOwnProperty
|
|
|
* Example: _has(MainHostObject, property) === true/false
|
|
|
*
|
|
|
* @param {Object} object to check property
|
|
|
* @param {string} key to check
|
|
|
*/
|
|
|
function _has(object, key) {
|
|
|
return Object.prototype.hasOwnProperty.call(object, key);
|
|
|
}
|
|
|
|
|
|
function _isUndefined(what) {
|
|
|
return typeof what === 'undefined';
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* TraceKit.noConflict: Export TraceKit out to another variable
|
|
|
* Example: var TK = TraceKit.noConflict()
|
|
|
*/
|
|
|
TraceKit.noConflict = function noConflict() {
|
|
|
window.TraceKit = _oldTraceKit;
|
|
|
return TraceKit;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* TraceKit.wrap: Wrap any function in a TraceKit reporter
|
|
|
* Example: func = TraceKit.wrap(func);
|
|
|
*
|
|
|
* @param {Function} func Function to be wrapped
|
|
|
* @return {Function} The wrapped func
|
|
|
*/
|
|
|
TraceKit.wrap = function traceKitWrapper(func) {
|
|
|
function wrapped() {
|
|
|
try {
|
|
|
return func.apply(this, arguments);
|
|
|
} catch (e) {
|
|
|
TraceKit.report(e);
|
|
|
throw e;
|
|
|
}
|
|
|
}
|
|
|
return wrapped;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* TraceKit.report: cross-browser processing of unhandled exceptions
|
|
|
*
|
|
|
* Syntax:
|
|
|
* TraceKit.report.subscribe(function(stackInfo) { ... })
|
|
|
* TraceKit.report.unsubscribe(function(stackInfo) { ... })
|
|
|
* TraceKit.report(exception)
|
|
|
* try { ...code... } catch(ex) { TraceKit.report(ex); }
|
|
|
*
|
|
|
* Supports:
|
|
|
* - Firefox: full stack trace with line numbers, plus column number
|
|
|
* on top frame; column number is not guaranteed
|
|
|
* - Opera: full stack trace with line and column numbers
|
|
|
* - Chrome: full stack trace with line and column numbers
|
|
|
* - Safari: line and column number for the top frame only; some frames
|
|
|
* may be missing, and column number is not guaranteed
|
|
|
* - IE: line and column number for the top frame only; some frames
|
|
|
* may be missing, and column number is not guaranteed
|
|
|
*
|
|
|
* In theory, TraceKit should work on all of the following versions:
|
|
|
* - IE5.5+ (only 8.0 tested)
|
|
|
* - Firefox 0.9+ (only 3.5+ tested)
|
|
|
* - Opera 7+ (only 10.50 tested; versions 9 and earlier may require
|
|
|
* Exceptions Have Stacktrace to be enabled in opera:config)
|
|
|
* - Safari 3+ (only 4+ tested)
|
|
|
* - Chrome 1+ (only 5+ tested)
|
|
|
* - Konqueror 3.5+ (untested)
|
|
|
*
|
|
|
* Requires TraceKit.computeStackTrace.
|
|
|
*
|
|
|
* Tries to catch all unhandled exceptions and report them to the
|
|
|
* subscribed handlers. Please note that TraceKit.report will rethrow the
|
|
|
* exception. This is REQUIRED in order to get a useful stack trace in IE.
|
|
|
* If the exception does not reach the top of the browser, you will only
|
|
|
* get a stack trace from the point where TraceKit.report was called.
|
|
|
*
|
|
|
* Handlers receive a stackInfo object as described in the
|
|
|
* TraceKit.computeStackTrace docs.
|
|
|
*/
|
|
|
TraceKit.report = (function reportModuleWrapper() {
|
|
|
var handlers = [],
|
|
|
lastArgs = null,
|
|
|
lastException = null,
|
|
|
lastExceptionStack = null;
|
|
|
|
|
|
/**
|
|
|
* Add a crash handler.
|
|
|
* @param {Function} handler
|
|
|
*/
|
|
|
function subscribe(handler) {
|
|
|
installGlobalHandler();
|
|
|
handlers.push(handler);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Remove a crash handler.
|
|
|
* @param {Function} handler
|
|
|
*/
|
|
|
function unsubscribe(handler) {
|
|
|
for (var i = handlers.length - 1; i >= 0; --i) {
|
|
|
if (handlers[i] === handler) {
|
|
|
handlers.splice(i, 1);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Dispatch stack information to all handlers.
|
|
|
* @param {Object.<string, *>} stack
|
|
|
*/
|
|
|
function notifyHandlers(stack, isWindowError) {
|
|
|
var exception = null;
|
|
|
if (isWindowError && !TraceKit.collectWindowErrors) {
|
|
|
return;
|
|
|
}
|
|
|
for (var i in handlers) {
|
|
|
if (_has(handlers, i)) {
|
|
|
try {
|
|
|
handlers[i].apply(null, [stack].concat(_slice.call(arguments, 2)));
|
|
|
} catch (inner) {
|
|
|
exception = inner;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (exception) {
|
|
|
throw exception;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
var _oldOnerrorHandler, _onErrorHandlerInstalled;
|
|
|
|
|
|
/**
|
|
|
* Ensures all global unhandled exceptions are recorded.
|
|
|
* Supported by Gecko and IE.
|
|
|
* @param {string} message Error message.
|
|
|
* @param {string} url URL of script that generated the exception.
|
|
|
* @param {(number|string)} lineNo The line number at which the error
|
|
|
* occurred.
|
|
|
* @param {?(number|string)} columnNo The column number at which the error
|
|
|
* occurred.
|
|
|
* @param {?Error} errorObj The actual Error object.
|
|
|
*/
|
|
|
function traceKitWindowOnError(message, url, lineNo, columnNo, errorObj) {
|
|
|
var stack = null;
|
|
|
|
|
|
if (lastExceptionStack) {
|
|
|
TraceKit.computeStackTrace.augmentStackTraceWithInitialElement(lastExceptionStack, url, lineNo, message);
|
|
|
processLastException();
|
|
|
} else if (errorObj) {
|
|
|
stack = TraceKit.computeStackTrace(errorObj);
|
|
|
notifyHandlers(stack, true);
|
|
|
} else {
|
|
|
var location = {
|
|
|
'url': url,
|
|
|
'line': lineNo,
|
|
|
'column': columnNo
|
|
|
};
|
|
|
location.func = TraceKit.computeStackTrace.guessFunctionName(location.url, location.line);
|
|
|
location.context = TraceKit.computeStackTrace.gatherContext(location.url, location.line);
|
|
|
stack = {
|
|
|
'mode': 'onerror',
|
|
|
'message': message,
|
|
|
'stack': [location]
|
|
|
};
|
|
|
|
|
|
notifyHandlers(stack, true);
|
|
|
}
|
|
|
|
|
|
if (_oldOnerrorHandler) {
|
|
|
return _oldOnerrorHandler.apply(this, arguments);
|
|
|
}
|
|
|
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
function installGlobalHandler () {
|
|
|
if (_onErrorHandlerInstalled === true) {
|
|
|
return;
|
|
|
}
|
|
|
_oldOnerrorHandler = window.onerror;
|
|
|
window.onerror = traceKitWindowOnError;
|
|
|
_onErrorHandlerInstalled = true;
|
|
|
}
|
|
|
|
|
|
function processLastException() {
|
|
|
var _lastExceptionStack = lastExceptionStack,
|
|
|
_lastArgs = lastArgs;
|
|
|
lastArgs = null;
|
|
|
lastExceptionStack = null;
|
|
|
lastException = null;
|
|
|
notifyHandlers.apply(null, [_lastExceptionStack, false].concat(_lastArgs));
|
|
|
}
|
|
|
/**
|
|
|
* Reports an unhandled Error to TraceKit.
|
|
|
* @param {Error} ex
|
|
|
*/
|
|
|
function report(ex) {
|
|
|
if (lastExceptionStack) {
|
|
|
if (lastException === ex) {
|
|
|
return; // already caught by an inner catch block, ignore
|
|
|
} else {
|
|
|
processLastException();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
var stack = TraceKit.computeStackTrace(ex);
|
|
|
lastExceptionStack = stack;
|
|
|
lastException = ex;
|
|
|
lastArgs = _slice.call(arguments, 1);
|
|
|
|
|
|
// If the stack trace is incomplete, wait for 2 seconds for
|
|
|
// slow slow IE to see if onerror occurs or not before reporting
|
|
|
// this exception; otherwise, we will end up with an incomplete
|
|
|
// stack trace
|
|
|
window.setTimeout(function () {
|
|
|
if (lastException === ex) {
|
|
|
processLastException();
|
|
|
}
|
|
|
}, (stack.incomplete ? 2000 : 0));
|
|
|
|
|
|
throw ex; // re-throw to propagate to the top level (and cause window.onerror)
|
|
|
}
|
|
|
|
|
|
report.subscribe = subscribe;
|
|
|
report.unsubscribe = unsubscribe;
|
|
|
return report;
|
|
|
}());
|
|
|
|
|
|
/**
|
|
|
* TraceKit.computeStackTrace: cross-browser stack traces in JavaScript
|
|
|
*
|
|
|
* Syntax:
|
|
|
* s = TraceKit.computeStackTrace.ofCaller([depth])
|
|
|
* s = TraceKit.computeStackTrace(exception) // consider using TraceKit.report instead (see below)
|
|
|
* Returns:
|
|
|
* s.name - exception name
|
|
|
* s.message - exception message
|
|
|
* s.stack[i].url - JavaScript or HTML file URL
|
|
|
* s.stack[i].func - function name, or empty for anonymous functions (if guessing did not work)
|
|
|
* s.stack[i].args - arguments passed to the function, if known
|
|
|
* s.stack[i].line - line number, if known
|
|
|
* s.stack[i].column - column number, if known
|
|
|
* s.stack[i].context - an array of source code lines; the middle element corresponds to the correct line#
|
|
|
* s.mode - 'stack', 'stacktrace', 'multiline', 'callers', 'onerror', or 'failed' -- method used to collect the stack trace
|
|
|
*
|
|
|
* Supports:
|
|
|
* - Firefox: full stack trace with line numbers and unreliable column
|
|
|
* number on top frame
|
|
|
* - Opera 10: full stack trace with line and column numbers
|
|
|
* - Opera 9-: full stack trace with line numbers
|
|
|
* - Chrome: full stack trace with line and column numbers
|
|
|
* - Safari: line and column number for the topmost stacktrace element
|
|
|
* only
|
|
|
* - IE: no line numbers whatsoever
|
|
|
*
|
|
|
* Tries to guess names of anonymous functions by looking for assignments
|
|
|
* in the source code. In IE and Safari, we have to guess source file names
|
|
|
* by searching for function bodies inside all page scripts. This will not
|
|
|
* work for scripts that are loaded cross-domain.
|
|
|
* Here be dragons: some function names may be guessed incorrectly, and
|
|
|
* duplicate functions may be mismatched.
|
|
|
*
|
|
|
* TraceKit.computeStackTrace should only be used for tracing purposes.
|
|
|
* Logging of unhandled exceptions should be done with TraceKit.report,
|
|
|
* which builds on top of TraceKit.computeStackTrace and provides better
|
|
|
* IE support by utilizing the window.onerror event to retrieve information
|
|
|
* about the top of the stack.
|
|
|
*
|
|
|
* Note: In IE and Safari, no stack trace is recorded on the Error object,
|
|
|
* so computeStackTrace instead walks its *own* chain of callers.
|
|
|
* This means that:
|
|
|
* * in Safari, some methods may be missing from the stack trace;
|
|
|
* * in IE, the topmost function in the stack trace will always be the
|
|
|
* caller of computeStackTrace.
|
|
|
*
|
|
|
* This is okay for tracing (because you are likely to be calling
|
|
|
* computeStackTrace from the function you want to be the topmost element
|
|
|
* of the stack trace anyway), but not okay for logging unhandled
|
|
|
* exceptions (because your catch block will likely be far away from the
|
|
|
* inner function that actually caused the exception).
|
|
|
*
|
|
|
* Tracing example:
|
|
|
* function trace(message) {
|
|
|
* var stackInfo = TraceKit.computeStackTrace.ofCaller();
|
|
|
* var data = message + "\n";
|
|
|
* for(var i in stackInfo.stack) {
|
|
|
* var item = stackInfo.stack[i];
|
|
|
* data += (item.func || '[anonymous]') + "() in " + item.url + ":" + (item.line || '0') + "\n";
|
|
|
* }
|
|
|
* if (window.console)
|
|
|
* console.info(data);
|
|
|
* else
|
|
|
* alert(data);
|
|
|
* }
|
|
|
*/
|
|
|
TraceKit.computeStackTrace = (function computeStackTraceWrapper() {
|
|
|
var debug = false,
|
|
|
sourceCache = {};
|
|
|
|
|
|
/**
|
|
|
* Attempts to retrieve source code via XMLHttpRequest, which is used
|
|
|
* to look up anonymous function names.
|
|
|
* @param {string} url URL of source code.
|
|
|
* @return {string} Source contents.
|
|
|
*/
|
|
|
function loadSource(url) {
|
|
|
if (!TraceKit.remoteFetching) { //Only attempt request if remoteFetching is on.
|
|
|
return '';
|
|
|
}
|
|
|
try {
|
|
|
var getXHR = function() {
|
|
|
try {
|
|
|
return new window.XMLHttpRequest();
|
|
|
} catch (e) {
|
|
|
// explicitly bubble up the exception if not found
|
|
|
return new window.ActiveXObject('Microsoft.XMLHTTP');
|
|
|
}
|
|
|
};
|
|
|
|
|
|
var request = getXHR();
|
|
|
request.open('GET', url, false);
|
|
|
request.send('');
|
|
|
return request.responseText;
|
|
|
} catch (e) {
|
|
|
return '';
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Retrieves source code from the source code cache.
|
|
|
* @param {string} url URL of source code.
|
|
|
* @return {Array.<string>} Source contents.
|
|
|
*/
|
|
|
function getSource(url) {
|
|
|
if (typeof url !== 'string') {
|
|
|
return [];
|
|
|
}
|
|
|
|
|
|
if (!_has(sourceCache, url)) {
|
|
|
// URL needs to be able to fetched within the acceptable domain. Otherwise,
|
|
|
// cross-domain errors will be triggered.
|
|
|
var source = '';
|
|
|
var domain = '';
|
|
|
try { domain = document.domain; } catch (e) {}
|
|
|
if (url.indexOf(domain) !== -1) {
|
|
|
source = loadSource(url);
|
|
|
}
|
|
|
sourceCache[url] = source ? source.split('\n') : [];
|
|
|
}
|
|
|
|
|
|
return sourceCache[url];
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Tries to use an externally loaded copy of source code to determine
|
|
|
* the name of a function by looking at the name of the variable it was
|
|
|
* assigned to, if any.
|
|
|
* @param {string} url URL of source code.
|
|
|
* @param {(string|number)} lineNo Line number in source code.
|
|
|
* @return {string} The function name, if discoverable.
|
|
|
*/
|
|
|
function guessFunctionName(url, lineNo) {
|
|
|
var reFunctionArgNames = /function ([^(]*)\(([^)]*)\)/,
|
|
|
reGuessFunction = /['"]?([0-9A-Za-z$_]+)['"]?\s*[:=]\s*(function|eval|new Function)/,
|
|
|
line = '',
|
|
|
maxLines = 10,
|
|
|
source = getSource(url),
|
|
|
m;
|
|
|
|
|
|
if (!source.length) {
|
|
|
return UNKNOWN_FUNCTION;
|
|
|
}
|
|
|
|
|
|
// Walk backwards from the first line in the function until we find the line which
|
|
|
// matches the pattern above, which is the function definition
|
|
|
for (var i = 0; i < maxLines; ++i) {
|
|
|
line = source[lineNo - i] + line;
|
|
|
|
|
|
if (!_isUndefined(line)) {
|
|
|
if ((m = reGuessFunction.exec(line))) {
|
|
|
return m[1];
|
|
|
} else if ((m = reFunctionArgNames.exec(line))) {
|
|
|
return m[1];
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return UNKNOWN_FUNCTION;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Retrieves the surrounding lines from where an exception occurred.
|
|
|
* @param {string} url URL of source code.
|
|
|
* @param {(string|number)} line Line number in source code to centre
|
|
|
* around for context.
|
|
|
* @return {?Array.<string>} Lines of source code.
|
|
|
*/
|
|
|
function gatherContext(url, line) {
|
|
|
var source = getSource(url);
|
|
|
|
|
|
if (!source.length) {
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
var context = [],
|
|
|
// linesBefore & linesAfter are inclusive with the offending line.
|
|
|
// if linesOfContext is even, there will be one extra line
|
|
|
// *before* the offending line.
|
|
|
linesBefore = Math.floor(TraceKit.linesOfContext / 2),
|
|
|
// Add one extra line if linesOfContext is odd
|
|
|
linesAfter = linesBefore + (TraceKit.linesOfContext % 2),
|
|
|
start = Math.max(0, line - linesBefore - 1),
|
|
|
end = Math.min(source.length, line + linesAfter - 1);
|
|
|
|
|
|
line -= 1; // convert to 0-based index
|
|
|
|
|
|
for (var i = start; i < end; ++i) {
|
|
|
if (!_isUndefined(source[i])) {
|
|
|
context.push(source[i]);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return context.length > 0 ? context : null;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Escapes special characters, except for whitespace, in a string to be
|
|
|
* used inside a regular expression as a string literal.
|
|
|
* @param {string} text The string.
|
|
|
* @return {string} The escaped string literal.
|
|
|
*/
|
|
|
function escapeRegExp(text) {
|
|
|
return text.replace(/[\-\[\]{}()*+?.,\\\^$|#]/g, '\\$&');
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Escapes special characters in a string to be used inside a regular
|
|
|
* expression as a string literal. Also ensures that HTML entities will
|
|
|
* be matched the same as their literal friends.
|
|
|
* @param {string} body The string.
|
|
|
* @return {string} The escaped string.
|
|
|
*/
|
|
|
function escapeCodeAsRegExpForMatchingInsideHTML(body) {
|
|
|
return escapeRegExp(body).replace('<', '(?:<|<)').replace('>', '(?:>|>)').replace('&', '(?:&|&)').replace('"', '(?:"|")').replace(/\s+/g, '\\s+');
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Determines where a code fragment occurs in the source code.
|
|
|
* @param {RegExp} re The function definition.
|
|
|
* @param {Array.<string>} urls A list of URLs to search.
|
|
|
* @return {?Object.<string, (string|number)>} An object containing
|
|
|
* the url, line, and column number of the defined function.
|
|
|
*/
|
|
|
function findSourceInUrls(re, urls) {
|
|
|
var source, m;
|
|
|
for (var i = 0, j = urls.length; i < j; ++i) {
|
|
|
// console.log('searching', urls[i]);
|
|
|
if ((source = getSource(urls[i])).length) {
|
|
|
source = source.join('\n');
|
|
|
if ((m = re.exec(source))) {
|
|
|
// console.log('Found function in ' + urls[i]);
|
|
|
|
|
|
return {
|
|
|
'url': urls[i],
|
|
|
'line': source.substring(0, m.index).split('\n').length,
|
|
|
'column': m.index - source.lastIndexOf('\n', m.index) - 1
|
|
|
};
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// console.log('no match');
|
|
|
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Determines at which column a code fragment occurs on a line of the
|
|
|
* source code.
|
|
|
* @param {string} fragment The code fragment.
|
|
|
* @param {string} url The URL to search.
|
|
|
* @param {(string|number)} line The line number to examine.
|
|
|
* @return {?number} The column number.
|
|
|
*/
|
|
|
function findSourceInLine(fragment, url, line) {
|
|
|
var source = getSource(url),
|
|
|
re = new RegExp('\\b' + escapeRegExp(fragment) + '\\b'),
|
|
|
m;
|
|
|
|
|
|
line -= 1;
|
|
|
|
|
|
if (source && source.length > line && (m = re.exec(source[line]))) {
|
|
|
return m.index;
|
|
|
}
|
|
|
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Determines where a function was defined within the source code.
|
|
|
* @param {(Function|string)} func A function reference or serialized
|
|
|
* function definition.
|
|
|
* @return {?Object.<string, (string|number)>} An object containing
|
|
|
* the url, line, and column number of the defined function.
|
|
|
*/
|
|
|
function findSourceByFunctionBody(func) {
|
|
|
if (_isUndefined(document)) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var urls = [window.location.href],
|
|
|
scripts = document.getElementsByTagName('script'),
|
|
|
body,
|
|
|
code = '' + func,
|
|
|
codeRE = /^function(?:\s+([\w$]+))?\s*\(([\w\s,]*)\)\s*\{\s*(\S[\s\S]*\S)\s*\}\s*$/,
|
|
|
eventRE = /^function on([\w$]+)\s*\(event\)\s*\{\s*(\S[\s\S]*\S)\s*\}\s*$/,
|
|
|
re,
|
|
|
parts,
|
|
|
result;
|
|
|
|
|
|
for (var i = 0; i < scripts.length; ++i) {
|
|
|
var script = scripts[i];
|
|
|
if (script.src) {
|
|
|
urls.push(script.src);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (!(parts = codeRE.exec(code))) {
|
|
|
re = new RegExp(escapeRegExp(code).replace(/\s+/g, '\\s+'));
|
|
|
}
|
|
|
|
|
|
// not sure if this is really necessary, but I don’t have a test
|
|
|
// corpus large enough to confirm that and it was in the original.
|
|
|
else {
|
|
|
var name = parts[1] ? '\\s+' + parts[1] : '',
|
|
|
args = parts[2].split(',').join('\\s*,\\s*');
|
|
|
|
|
|
body = escapeRegExp(parts[3]).replace(/;$/, ';?'); // semicolon is inserted if the function ends with a comment.replace(/\s+/g, '\\s+');
|
|
|
re = new RegExp('function' + name + '\\s*\\(\\s*' + args + '\\s*\\)\\s*{\\s*' + body + '\\s*}');
|
|
|
}
|
|
|
|
|
|
// look for a normal function definition
|
|
|
if ((result = findSourceInUrls(re, urls))) {
|
|
|
return result;
|
|
|
}
|
|
|
|
|
|
// look for an old-school event handler function
|
|
|
if ((parts = eventRE.exec(code))) {
|
|
|
var event = parts[1];
|
|
|
body = escapeCodeAsRegExpForMatchingInsideHTML(parts[2]);
|
|
|
|
|
|
// look for a function defined in HTML as an onXXX handler
|
|
|
re = new RegExp('on' + event + '=[\\\'"]\\s*' + body + '\\s*[\\\'"]', 'i');
|
|
|
|
|
|
if ((result = findSourceInUrls(re, urls[0]))) {
|
|
|
return result;
|
|
|
}
|
|
|
|
|
|
// look for ???
|
|
|
re = new RegExp(body);
|
|
|
|
|
|
if ((result = findSourceInUrls(re, urls))) {
|
|
|
return result;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
// Contents of Exception in various browsers.
|
|
|
//
|
|
|
// SAFARI:
|
|
|
// ex.message = Can't find variable: qq
|
|
|
// ex.line = 59
|
|
|
// ex.sourceId = 580238192
|
|
|
// ex.sourceURL = http://...
|
|
|
// ex.expressionBeginOffset = 96
|
|
|
// ex.expressionCaretOffset = 98
|
|
|
// ex.expressionEndOffset = 98
|
|
|
// ex.name = ReferenceError
|
|
|
//
|
|
|
// FIREFOX:
|
|
|
// ex.message = qq is not defined
|
|
|
// ex.fileName = http://...
|
|
|
// ex.lineNumber = 59
|
|
|
// ex.columnNumber = 69
|
|
|
// ex.stack = ...stack trace... (see the example below)
|
|
|
// ex.name = ReferenceError
|
|
|
//
|
|
|
// CHROME:
|
|
|
// ex.message = qq is not defined
|
|
|
// ex.name = ReferenceError
|
|
|
// ex.type = not_defined
|
|
|
// ex.arguments = ['aa']
|
|
|
// ex.stack = ...stack trace...
|
|
|
//
|
|
|
// INTERNET EXPLORER:
|
|
|
// ex.message = ...
|
|
|
// ex.name = ReferenceError
|
|
|
//
|
|
|
// OPERA:
|
|
|
// ex.message = ...message... (see the example below)
|
|
|
// ex.name = ReferenceError
|
|
|
// ex.opera#sourceloc = 11 (pretty much useless, duplicates the info in ex.message)
|
|
|
// ex.stacktrace = n/a; see 'opera:config#UserPrefs|Exceptions Have Stacktrace'
|
|
|
|
|
|
/**
|
|
|
* Computes stack trace information from the stack property.
|
|
|
* Chrome and Gecko use this property.
|
|
|
* @param {Error} ex
|
|
|
* @return {?Object.<string, *>} Stack trace information.
|
|
|
*/
|
|
|
function computeStackTraceFromStackProp(ex) {
|
|
|
if (!ex.stack) {
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
var chrome = /^\s*at (.*?) ?\(((?:file|https?|blob|chrome-extension|native|eval).*?)(?::(\d+))?(?::(\d+))?\)?\s*$/i,
|
|
|
gecko = /^\s*(.*?)(?:\((.*?)\))?@?((?:file|https?|blob|chrome|\[).*?)(?::(\d+))?(?::(\d+))?\s*$/i,
|
|
|
winjs = /^\s*at (?:((?:\[object object\])?.+) )?\(?((?:ms-appx|https?|blob):.*?):(\d+)(?::(\d+))?\)?\s*$/i,
|
|
|
lines = ex.stack.split('\n'),
|
|
|
stack = [],
|
|
|
parts,
|
|
|
element,
|
|
|
reference = /^(.*) is undefined$/.exec(ex.message);
|
|
|
|
|
|
for (var i = 0, j = lines.length; i < j; ++i) {
|
|
|
if ((parts = chrome.exec(lines[i]))) {
|
|
|
var isNative = parts[2] && parts[2].indexOf('native') !== -1;
|
|
|
element = {
|
|
|
'url': !isNative ? parts[2] : null,
|
|
|
'func': parts[1] || UNKNOWN_FUNCTION,
|
|
|
'args': isNative ? [parts[2]] : [],
|
|
|
'line': parts[3] ? +parts[3] : null,
|
|
|
'column': parts[4] ? +parts[4] : null
|
|
|
};
|
|
|
} else if ( parts = winjs.exec(lines[i]) ) {
|
|
|
element = {
|
|
|
'url': parts[2],
|
|
|
'func': parts[1] || UNKNOWN_FUNCTION,
|
|
|
'args': [],
|
|
|
'line': +parts[3],
|
|
|
'column': parts[4] ? +parts[4] : null
|
|
|
};
|
|
|
} else if ((parts = gecko.exec(lines[i]))) {
|
|
|
element = {
|
|
|
'url': parts[3],
|
|
|
'func': parts[1] || UNKNOWN_FUNCTION,
|
|
|
'args': parts[2] ? parts[2].split(',') : [],
|
|
|
'line': parts[4] ? +parts[4] : null,
|
|
|
'column': parts[5] ? +parts[5] : null
|
|
|
};
|
|
|
} else {
|
|
|
continue;
|
|
|
}
|
|
|
|
|
|
if (!element.func && element.line) {
|
|
|
element.func = guessFunctionName(element.url, element.line);
|
|
|
}
|
|
|
|
|
|
if (element.line) {
|
|
|
element.context = gatherContext(element.url, element.line);
|
|
|
}
|
|
|
|
|
|
stack.push(element);
|
|
|
}
|
|
|
|
|
|
if (!stack.length) {
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
if (stack[0] && stack[0].line && !stack[0].column && reference) {
|
|
|
stack[0].column = findSourceInLine(reference[1], stack[0].url, stack[0].line);
|
|
|
} else if (!stack[0].column && !_isUndefined(ex.columnNumber)) {
|
|
|
// FireFox uses this awesome columnNumber property for its top frame
|
|
|
// Also note, Firefox's column number is 0-based and everything else expects 1-based,
|
|
|
// so adding 1
|
|
|
stack[0].column = ex.columnNumber + 1;
|
|
|
}
|
|
|
|
|
|
return {
|
|
|
'mode': 'stack',
|
|
|
'name': ex.name,
|
|
|
'message': ex.message,
|
|
|
'stack': stack
|
|
|
};
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Computes stack trace information from the stacktrace property.
|
|
|
* Opera 10+ uses this property.
|
|
|
* @param {Error} ex
|
|
|
* @return {?Object.<string, *>} Stack trace information.
|
|
|
*/
|
|
|
function computeStackTraceFromStacktraceProp(ex) {
|
|
|
// Access and store the stacktrace property before doing ANYTHING
|
|
|
// else to it because Opera is not very good at providing it
|
|
|
// reliably in other circumstances.
|
|
|
var stacktrace = ex.stacktrace;
|
|
|
if (!stacktrace) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var opera10Regex = / line (\d+).*script (?:in )?(\S+)(?:: in function (\S+))?$/i,
|
|
|
opera11Regex = / line (\d+), column (\d+)\s*(?:in (?:<anonymous function: ([^>]+)>|([^\)]+))\((.*)\))? in (.*):\s*$/i,
|
|
|
lines = stacktrace.split('\n'),
|
|
|
stack = [],
|
|
|
parts;
|
|
|
|
|
|
for (var line = 0; line < lines.length; line += 2) {
|
|
|
var element = null;
|
|
|
if ((parts = opera10Regex.exec(lines[line]))) {
|
|
|
element = {
|
|
|
'url': parts[2],
|
|
|
'line': +parts[1],
|
|
|
'column': null,
|
|
|
'func': parts[3],
|
|
|
'args':[]
|
|
|
};
|
|
|
} else if ((parts = opera11Regex.exec(lines[line]))) {
|
|
|
element = {
|
|
|
'url': parts[6],
|
|
|
'line': +parts[1],
|
|
|
'column': +parts[2],
|
|
|
'func': parts[3] || parts[4],
|
|
|
'args': parts[5] ? parts[5].split(',') : []
|
|
|
};
|
|
|
}
|
|
|
|
|
|
if (element) {
|
|
|
if (!element.func && element.line) {
|
|
|
element.func = guessFunctionName(element.url, element.line);
|
|
|
}
|
|
|
if (element.line) {
|
|
|
try {
|
|
|
element.context = gatherContext(element.url, element.line);
|
|
|
} catch (exc) {}
|
|
|
}
|
|
|
|
|
|
if (!element.context) {
|
|
|
element.context = [lines[line + 1]];
|
|
|
}
|
|
|
|
|
|
stack.push(element);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (!stack.length) {
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
return {
|
|
|
'mode': 'stacktrace',
|
|
|
'name': ex.name,
|
|
|
'message': ex.message,
|
|
|
'stack': stack
|
|
|
};
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* NOT TESTED.
|
|
|
* Computes stack trace information from an error message that includes
|
|
|
* the stack trace.
|
|
|
* Opera 9 and earlier use this method if the option to show stack
|
|
|
* traces is turned on in opera:config.
|
|
|
* @param {Error} ex
|
|
|
* @return {?Object.<string, *>} Stack information.
|
|
|
*/
|
|
|
function computeStackTraceFromOperaMultiLineMessage(ex) {
|
|
|
// TODO: Clean this function up
|
|
|
// Opera includes a stack trace into the exception message. An example is:
|
|
|
//
|
|
|
// Statement on line 3: Undefined variable: undefinedFunc
|
|
|
// Backtrace:
|
|
|
// Line 3 of linked script file://localhost/Users/andreyvit/Projects/TraceKit/javascript-client/sample.js: In function zzz
|
|
|
// undefinedFunc(a);
|
|
|
// Line 7 of inline#1 script in file://localhost/Users/andreyvit/Projects/TraceKit/javascript-client/sample.html: In function yyy
|
|
|
// zzz(x, y, z);
|
|
|
// Line 3 of inline#1 script in file://localhost/Users/andreyvit/Projects/TraceKit/javascript-client/sample.html: In function xxx
|
|
|
// yyy(a, a, a);
|
|
|
// Line 1 of function script
|
|
|
// try { xxx('hi'); return false; } catch(ex) { TraceKit.report(ex); }
|
|
|
// ...
|
|
|
|
|
|
var lines = ex.message.split('\n');
|
|
|
if (lines.length < 4) {
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
var lineRE1 = /^\s*Line (\d+) of linked script ((?:file|https?|blob)\S+)(?:: in function (\S+))?\s*$/i,
|
|
|
lineRE2 = /^\s*Line (\d+) of inline#(\d+) script in ((?:file|https?|blob)\S+)(?:: in function (\S+))?\s*$/i,
|
|
|
lineRE3 = /^\s*Line (\d+) of function script\s*$/i,
|
|
|
stack = [],
|
|
|
scripts = document.getElementsByTagName('script'),
|
|
|
inlineScriptBlocks = [],
|
|
|
parts;
|
|
|
|
|
|
for (var s in scripts) {
|
|
|
if (_has(scripts, s) && !scripts[s].src) {
|
|
|
inlineScriptBlocks.push(scripts[s]);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
for (var line = 2; line < lines.length; line += 2) {
|
|
|
var item = null;
|
|
|
if ((parts = lineRE1.exec(lines[line]))) {
|
|
|
item = {
|
|
|
'url': parts[2],
|
|
|
'func': parts[3],
|
|
|
'args': [],
|
|
|
'line': +parts[1],
|
|
|
'column': null
|
|
|
};
|
|
|
} else if ((parts = lineRE2.exec(lines[line]))) {
|
|
|
item = {
|
|
|
'url': parts[3],
|
|
|
'func': parts[4],
|
|
|
'args': [],
|
|
|
'line': +parts[1],
|
|
|
'column': null // TODO: Check to see if inline#1 (+parts[2]) points to the script number or column number.
|
|
|
};
|
|
|
var relativeLine = (+parts[1]); // relative to the start of the <SCRIPT> block
|
|
|
var script = inlineScriptBlocks[parts[2] - 1];
|
|
|
if (script) {
|
|
|
var source = getSource(item.url);
|
|
|
if (source) {
|
|
|
source = source.join('\n');
|
|
|
var pos = source.indexOf(script.innerText);
|
|
|
if (pos >= 0) {
|
|
|
item.line = relativeLine + source.substring(0, pos).split('\n').length;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
} else if ((parts = lineRE3.exec(lines[line]))) {
|
|
|
var url = window.location.href.replace(/#.*$/, '');
|
|
|
var re = new RegExp(escapeCodeAsRegExpForMatchingInsideHTML(lines[line + 1]));
|
|
|
var src = findSourceInUrls(re, [url]);
|
|
|
item = {
|
|
|
'url': url,
|
|
|
'func': '',
|
|
|
'args': [],
|
|
|
'line': src ? src.line : parts[1],
|
|
|
'column': null
|
|
|
};
|
|
|
}
|
|
|
|
|
|
if (item) {
|
|
|
if (!item.func) {
|
|
|
item.func = guessFunctionName(item.url, item.line);
|
|
|
}
|
|
|
var context = gatherContext(item.url, item.line);
|
|
|
var midline = (context ? context[Math.floor(context.length / 2)] : null);
|
|
|
if (context && midline.replace(/^\s*/, '') === lines[line + 1].replace(/^\s*/, '')) {
|
|
|
item.context = context;
|
|
|
} else {
|
|
|
// if (context) alert("Context mismatch. Correct midline:\n" + lines[i+1] + "\n\nMidline:\n" + midline + "\n\nContext:\n" + context.join("\n") + "\n\nURL:\n" + item.url);
|
|
|
item.context = [lines[line + 1]];
|
|
|
}
|
|
|
stack.push(item);
|
|
|
}
|
|
|
}
|
|
|
if (!stack.length) {
|
|
|
return null; // could not parse multiline exception message as Opera stack trace
|
|
|
}
|
|
|
|
|
|
return {
|
|
|
'mode': 'multiline',
|
|
|
'name': ex.name,
|
|
|
'message': lines[0],
|
|
|
'stack': stack
|
|
|
};
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Adds information about the first frame to incomplete stack traces.
|
|
|
* Safari and IE require this to get complete data on the first frame.
|
|
|
* @param {Object.<string, *>} stackInfo Stack trace information from
|
|
|
* one of the compute* methods.
|
|
|
* @param {string} url The URL of the script that caused an error.
|
|
|
* @param {(number|string)} lineNo The line number of the script that
|
|
|
* caused an error.
|
|
|
* @param {string=} message The error generated by the browser, which
|
|
|
* hopefully contains the name of the object that caused the error.
|
|
|
* @return {boolean} Whether or not the stack information was
|
|
|
* augmented.
|
|
|
*/
|
|
|
function augmentStackTraceWithInitialElement(stackInfo, url, lineNo, message) {
|
|
|
var initial = {
|
|
|
'url': url,
|
|
|
'line': lineNo
|
|
|
};
|
|
|
|
|
|
if (initial.url && initial.line) {
|
|
|
stackInfo.incomplete = false;
|
|
|
|
|
|
if (!initial.func) {
|
|
|
initial.func = guessFunctionName(initial.url, initial.line);
|
|
|
}
|
|
|
|
|
|
if (!initial.context) {
|
|
|
initial.context = gatherContext(initial.url, initial.line);
|
|
|
}
|
|
|
|
|
|
var reference = / '([^']+)' /.exec(message);
|
|
|
if (reference) {
|
|
|
initial.column = findSourceInLine(reference[1], initial.url, initial.line);
|
|
|
}
|
|
|
|
|
|
if (stackInfo.stack.length > 0) {
|
|
|
if (stackInfo.stack[0].url === initial.url) {
|
|
|
if (stackInfo.stack[0].line === initial.line) {
|
|
|
return false; // already in stack trace
|
|
|
} else if (!stackInfo.stack[0].line && stackInfo.stack[0].func === initial.func) {
|
|
|
stackInfo.stack[0].line = initial.line;
|
|
|
stackInfo.stack[0].context = initial.context;
|
|
|
return false;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
stackInfo.stack.unshift(initial);
|
|
|
stackInfo.partial = true;
|
|
|
return true;
|
|
|
} else {
|
|
|
stackInfo.incomplete = true;
|
|
|
}
|
|
|
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Computes stack trace information by walking the arguments.caller
|
|
|
* chain at the time the exception occurred. This will cause earlier
|
|
|
* frames to be missed but is the only way to get any stack trace in
|
|
|
* Safari and IE. The top frame is restored by
|
|
|
* {@link augmentStackTraceWithInitialElement}.
|
|
|
* @param {Error} ex
|
|
|
* @return {?Object.<string, *>} Stack trace information.
|
|
|
*/
|
|
|
function computeStackTraceByWalkingCallerChain(ex, depth) {
|
|
|
var functionName = /function\s+([_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*)?\s*\(/i,
|
|
|
stack = [],
|
|
|
funcs = {},
|
|
|
recursion = false,
|
|
|
parts,
|
|
|
item,
|
|
|
source;
|
|
|
|
|
|
for (var curr = computeStackTraceByWalkingCallerChain.caller; curr && !recursion; curr = curr.caller) {
|
|
|
if (curr === computeStackTrace || curr === TraceKit.report) {
|
|
|
// console.log('skipping internal function');
|
|
|
continue;
|
|
|
}
|
|
|
|
|
|
item = {
|
|
|
'url': null,
|
|
|
'func': UNKNOWN_FUNCTION,
|
|
|
'args': [],
|
|
|
'line': null,
|
|
|
'column': null
|
|
|
};
|
|
|
|
|
|
if (curr.name) {
|
|
|
item.func = curr.name;
|
|
|
} else if ((parts = functionName.exec(curr.toString()))) {
|
|
|
item.func = parts[1];
|
|
|
}
|
|
|
|
|
|
if (typeof item.func === 'undefined') {
|
|
|
try {
|
|
|
item.func = parts.input.substring(0, parts.input.indexOf('{'));
|
|
|
} catch (e) { }
|
|
|
}
|
|
|
|
|
|
if ((source = findSourceByFunctionBody(curr))) {
|
|
|
item.url = source.url;
|
|
|
item.line = source.line;
|
|
|
|
|
|
if (item.func === UNKNOWN_FUNCTION) {
|
|
|
item.func = guessFunctionName(item.url, item.line);
|
|
|
}
|
|
|
|
|
|
var reference = / '([^']+)' /.exec(ex.message || ex.description);
|
|
|
if (reference) {
|
|
|
item.column = findSourceInLine(reference[1], source.url, source.line);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (funcs['' + curr]) {
|
|
|
recursion = true;
|
|
|
}else{
|
|
|
funcs['' + curr] = true;
|
|
|
}
|
|
|
|
|
|
stack.push(item);
|
|
|
}
|
|
|
|
|
|
if (depth) {
|
|
|
// console.log('depth is ' + depth);
|
|
|
// console.log('stack is ' + stack.length);
|
|
|
stack.splice(0, depth);
|
|
|
}
|
|
|
|
|
|
var result = {
|
|
|
'mode': 'callers',
|
|
|
'name': ex.name,
|
|
|
'message': ex.message,
|
|
|
'stack': stack
|
|
|
};
|
|
|
augmentStackTraceWithInitialElement(result, ex.sourceURL || ex.fileName, ex.line || ex.lineNumber, ex.message || ex.description);
|
|
|
return result;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Computes a stack trace for an exception.
|
|
|
* @param {Error} ex
|
|
|
* @param {(string|number)=} depth
|
|
|
*/
|
|
|
function computeStackTrace(ex, depth) {
|
|
|
var stack = null;
|
|
|
depth = (depth == null ? 0 : +depth);
|
|
|
|
|
|
try {
|
|
|
// This must be tried first because Opera 10 *destroys*
|
|
|
// its stacktrace property if you try to access the stack
|
|
|
// property first!!
|
|
|
stack = computeStackTraceFromStacktraceProp(ex);
|
|
|
if (stack) {
|
|
|
return stack;
|
|
|
}
|
|
|
} catch (e) {
|
|
|
if (debug) {
|
|
|
throw e;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
try {
|
|
|
stack = computeStackTraceFromStackProp(ex);
|
|
|
if (stack) {
|
|
|
return stack;
|
|
|
}
|
|
|
} catch (e) {
|
|
|
if (debug) {
|
|
|
throw e;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
try {
|
|
|
stack = computeStackTraceFromOperaMultiLineMessage(ex);
|
|
|
if (stack) {
|
|
|
return stack;
|
|
|
}
|
|
|
} catch (e) {
|
|
|
if (debug) {
|
|
|
throw e;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
try {
|
|
|
stack = computeStackTraceByWalkingCallerChain(ex, depth + 1);
|
|
|
if (stack) {
|
|
|
return stack;
|
|
|
}
|
|
|
} catch (e) {
|
|
|
if (debug) {
|
|
|
throw e;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return {
|
|
|
'mode': 'failed'
|
|
|
};
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Logs a stacktrace starting from the previous call and working down.
|
|
|
* @param {(number|string)=} depth How many frames deep to trace.
|
|
|
* @return {Object.<string, *>} Stack trace information.
|
|
|
*/
|
|
|
function computeStackTraceOfCaller(depth) {
|
|
|
depth = (depth == null ? 0 : +depth) + 1; // "+ 1" because "ofCaller" should drop one frame
|
|
|
try {
|
|
|
throw new Error();
|
|
|
} catch (ex) {
|
|
|
return computeStackTrace(ex, depth + 1);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
computeStackTrace.augmentStackTraceWithInitialElement = augmentStackTraceWithInitialElement;
|
|
|
computeStackTrace.guessFunctionName = guessFunctionName;
|
|
|
computeStackTrace.gatherContext = gatherContext;
|
|
|
computeStackTrace.ofCaller = computeStackTraceOfCaller;
|
|
|
computeStackTrace.getSource = getSource;
|
|
|
|
|
|
return computeStackTrace;
|
|
|
}());
|
|
|
|
|
|
/**
|
|
|
* Extends support for global error handling for asynchronous browser
|
|
|
* functions. Adopted from Closure Library's errorhandler.js
|
|
|
*/
|
|
|
TraceKit.extendToAsynchronousCallbacks = function () {
|
|
|
var _helper = function _helper(fnName) {
|
|
|
var originalFn = window[fnName];
|
|
|
window[fnName] = function traceKitAsyncExtension() {
|
|
|
// Make a copy of the arguments
|
|
|
var args = _slice.call(arguments);
|
|
|
var originalCallback = args[0];
|
|
|
if (typeof (originalCallback) === 'function') {
|
|
|
args[0] = TraceKit.wrap(originalCallback);
|
|
|
}
|
|
|
// IE < 9 doesn't support .call/.apply on setInterval/setTimeout, but it
|
|
|
// also only supports 2 argument and doesn't care what "this" is, so we
|
|
|
// can just call the original function directly.
|
|
|
if (originalFn.apply) {
|
|
|
return originalFn.apply(this, args);
|
|
|
} else {
|
|
|
return originalFn(args[0], args[1]);
|
|
|
}
|
|
|
};
|
|
|
};
|
|
|
|
|
|
_helper('setTimeout');
|
|
|
_helper('setInterval');
|
|
|
};
|
|
|
|
|
|
//Default options:
|
|
|
if (!TraceKit.remoteFetching) {
|
|
|
TraceKit.remoteFetching = true;
|
|
|
}
|
|
|
if (!TraceKit.collectWindowErrors) {
|
|
|
TraceKit.collectWindowErrors = true;
|
|
|
}
|
|
|
if (!TraceKit.linesOfContext || TraceKit.linesOfContext < 1) {
|
|
|
// 5 lines before, the offending line, 5 lines after
|
|
|
TraceKit.linesOfContext = 11;
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// Export to global object
|
|
|
window.TraceKit = TraceKit;
|
|
|
|
|
|
}(typeof window !== 'undefined' ? window : global));
|
|
|
|
