From 5f98fdcdc9bca5b33220a1bb2b6ded32606271ff Mon Sep 17 00:00:00 2001 From: Jacob Schatz Date: Mon, 18 Apr 2016 12:26:32 -0400 Subject: [PATCH 1/5] Add sentry logger to GitLab --- app/assets/javascripts/application.js.coffee | 3 +++ lib/gitlab/gon_helper.rb | 1 + vendor/assets/javascripts/raven.min.js | 3 +++ 3 files changed, 7 insertions(+) create mode 100644 vendor/assets/javascripts/raven.min.js diff --git a/app/assets/javascripts/application.js.coffee b/app/assets/javascripts/application.js.coffee index 6f435e4c542..ab2432e1389 100644 --- a/app/assets/javascripts/application.js.coffee +++ b/app/assets/javascripts/application.js.coffee @@ -295,3 +295,6 @@ $ -> checkInitialSidebarSize() new Aside() + + if gon.sentry_dsn? + Raven.config('your public dsn').install() \ No newline at end of file diff --git a/lib/gitlab/gon_helper.rb b/lib/gitlab/gon_helper.rb index 5ebaad6ca6e..4bdaedbf9b6 100644 --- a/lib/gitlab/gon_helper.rb +++ b/lib/gitlab/gon_helper.rb @@ -7,6 +7,7 @@ module Gitlab gon.max_file_size = current_application_settings.max_attachment_size gon.relative_url_root = Gitlab.config.gitlab.relative_url_root gon.user_color_scheme = Gitlab::ColorSchemes.for_user(current_user).css_class + gon.sentry_dsn = ApplicationSetting.current.sentry_dsn if current_user gon.current_user_id = current_user.id diff --git a/vendor/assets/javascripts/raven.min.js b/vendor/assets/javascripts/raven.min.js new file mode 100644 index 00000000000..9df09c07377 --- /dev/null +++ b/vendor/assets/javascripts/raven.min.js @@ -0,0 +1,3 @@ +/*! 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e}return{name:a.name,message:a.message,url:d()}}var v={};return u.augmentStackTraceWithInitialElement=s,u.computeStackTraceFromStackProp=p,u.guessFunctionName=c,u.gatherContext=e,u}(),b.exports=i},{4:4}]},{},[3])(3)}); +//# sourceMappingURL=raven.min.js.map \ No newline at end of file From 001fe515cfeb0e4853c1f053d97b579880bde90d Mon Sep 17 00:00:00 2001 From: Jacob Schatz Date: Mon, 18 Apr 2016 12:37:50 -0400 Subject: [PATCH 2/5] Make unminified Raven available. Use the correct sentry dsn. --- app/assets/javascripts/application.js.coffee | 5 +- vendor/assets/javascripts/raven.js | 2435 ++++++++++++++++++ vendor/assets/javascripts/raven.min.js | 3 - 3 files changed, 2438 insertions(+), 5 deletions(-) create mode 100644 vendor/assets/javascripts/raven.js delete mode 100644 vendor/assets/javascripts/raven.min.js diff --git a/app/assets/javascripts/application.js.coffee b/app/assets/javascripts/application.js.coffee index ab2432e1389..a98721e56bd 100644 --- a/app/assets/javascripts/application.js.coffee +++ b/app/assets/javascripts/application.js.coffee @@ -55,6 +55,7 @@ #= require_tree . #= require fuzzaldrin-plus #= require cropper +#= require raven window.slugify = (text) -> text.replace(/[^-a-zA-Z0-9]+/g, '_').toLowerCase() @@ -295,6 +296,6 @@ $ -> checkInitialSidebarSize() new Aside() - + if gon.sentry_dsn? - Raven.config('your public dsn').install() \ No newline at end of file + Raven.config(gon.sentry_dsn).install() \ No newline at end of file diff --git a/vendor/assets/javascripts/raven.js b/vendor/assets/javascripts/raven.js new file mode 100644 index 00000000000..d99c6f1c2c8 --- /dev/null +++ b/vendor/assets/javascripts/raven.js @@ -0,0 +1,2435 @@ +/*! Raven.js 2.3.0 (b09d766) | github.com/getsentry/raven-js */ + +/* + * Includes TraceKit + * https://github.com/getsentry/TraceKit + * + * Copyright 2016 Matt Robenolt and other contributors + * Released under the BSD license + * https://github.com/getsentry/raven-js/blob/master/LICENSE + * + */ + +(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Raven = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 300) { + isMinified = true; + break; + } + } + + if (isMinified) { + // The source is minified and we don't know which column. Fuck it. + if (isUndefined(frame.column)) return; + + // If the source is minified and has a frame column + // we take a chunk of the offending line to hopefully shed some light + return [ + [], // no pre_context + context[pivot].substr(frame.column, 50), // grab 50 characters, starting at the offending column + [] // no post_context + ]; + } + + return [ + context.slice(0, pivot), // pre_context + context[pivot], // context_line + context.slice(pivot + 1) // post_context + ]; + }, + + _processException: function(type, message, fileurl, lineno, frames, options) { + var stacktrace, fullMessage; + + if (!!this._globalOptions.ignoreErrors.test && this._globalOptions.ignoreErrors.test(message)) return; + + message += ''; + message = truncate(message, this._globalOptions.maxMessageLength); + + fullMessage = (type ? type + ': ' : '') + message; + fullMessage = truncate(fullMessage, this._globalOptions.maxMessageLength); + + if (frames && frames.length) { + fileurl = frames[0].filename || fileurl; + // Sentry expects frames oldest to newest + // and JS sends them as newest to oldest + frames.reverse(); + stacktrace = {frames: frames}; + } else if (fileurl) { + stacktrace = { + frames: [{ + filename: fileurl, + lineno: lineno, + in_app: true + }] + }; + } + + if (!!this._globalOptions.ignoreUrls.test && this._globalOptions.ignoreUrls.test(fileurl)) return; + if (!!this._globalOptions.whitelistUrls.test && !this._globalOptions.whitelistUrls.test(fileurl)) return; + + var data = objectMerge({ + // sentry.interfaces.Exception + exception: { + values: [{ + type: type, + value: message, + stacktrace: stacktrace + }] + }, + culprit: fileurl, + message: fullMessage + }, options); + + // Fire away! + this._send(data); + }, + + _trimPacket: function(data) { + // For now, we only want to truncate the two different messages + // but this could/should be expanded to just trim everything + var max = this._globalOptions.maxMessageLength; + data.message = truncate(data.message, max); + if (data.exception) { + var exception = data.exception.values[0]; + exception.value = truncate(exception.value, max); + } + + return data; + }, + + _getHttpData: function() { + if (!this._hasDocument || !document.location || !document.location.href) { + return; + } + + var httpData = { + headers: { + 'User-Agent': navigator.userAgent + } + }; + + httpData.url = document.location.href; + + if (document.referrer) { + httpData.headers.Referer = document.referrer; + } + + return httpData; + }, + + + _send: function(data) { + var self = this; + + var globalOptions = this._globalOptions; + + var baseData = { + project: this._globalProject, + logger: globalOptions.logger, + platform: 'javascript' + }, httpData = this._getHttpData(); + + if (httpData) { + baseData.request = httpData; + } + + data = objectMerge(baseData, data); + + // Merge in the tags and extra separately since objectMerge doesn't handle a deep merge + data.tags = objectMerge(objectMerge({}, this._globalContext.tags), data.tags); + data.extra = objectMerge(objectMerge({}, this._globalContext.extra), data.extra); + + // Send along our own collected metadata with extra + data.extra['session:duration'] = now() - this._startTime; + + // If there are no tags/extra, strip the key from the payload alltogther. + if (isEmptyObject(data.tags)) delete data.tags; + + if (this._globalContext.user) { + // sentry.interfaces.User + data.user = this._globalContext.user; + } + + // Include the release if it's defined in globalOptions + if (globalOptions.release) data.release = globalOptions.release; + + // Include server_name if it's defined in globalOptions + if (globalOptions.serverName) data.server_name = globalOptions.serverName; + + if (isFunction(globalOptions.dataCallback)) { + data = globalOptions.dataCallback(data) || data; + } + + // Why?????????? + if (!data || isEmptyObject(data)) { + return; + } + + // Check if the request should be filtered or not + if (isFunction(globalOptions.shouldSendCallback) && !globalOptions.shouldSendCallback(data)) { + return; + } + + // Send along an event_id if not explicitly passed. + // This event_id can be used to reference the error within Sentry itself. + // Set lastEventId after we know the error should actually be sent + this._lastEventId = data.event_id || (data.event_id = uuid4()); + + // Try and clean up the packet before sending by truncating long values + data = this._trimPacket(data); + + this._logDebug('debug', 'Raven about to send:', data); + + if (!this.isSetup()) return; + + var auth = { + sentry_version: '7', + sentry_client: 'raven-js/' + this.VERSION, + sentry_key: this._globalKey + }; + if (this._globalSecret) { + auth.sentry_secret = this._globalSecret; + } + + var url = this._globalEndpoint; + (globalOptions.transport || this._makeRequest).call(this, { + url: url, + auth: auth, + data: data, + options: globalOptions, + onSuccess: function success() { + self._triggerEvent('success', { + data: data, + src: url + }); + }, + onError: function failure() { + self._triggerEvent('failure', { + data: data, + src: url + }); + } + }); + }, + + _makeImageRequest: function(opts) { + // Tack on sentry_data to auth options, which get urlencoded + opts.auth.sentry_data = JSON.stringify(opts.data); + + var img = this._newImage(), + src = opts.url + '?' + urlencode(opts.auth), + crossOrigin = opts.options.crossOrigin; + + if (crossOrigin || crossOrigin === '') { + img.crossOrigin = crossOrigin; + } + img.onload = opts.onSuccess; + img.onerror = img.onabort = opts.onError; + img.src = src; + }, + + _makeXhrRequest: function(opts) { + var request; + + var url = opts.url; + function handler() { + if (request.status === 200) { + if (opts.onSuccess) { + opts.onSuccess(); + } + } else if (opts.onError) { + opts.onError(); + } + } + + request = new XMLHttpRequest(); + if ('withCredentials' in request) { + request.onreadystatechange = function () { + if (request.readyState !== 4) { + return; + } + handler(); + }; + } else { + request = new XDomainRequest(); + // xdomainrequest cannot go http -> https (or vice versa), + // so always use protocol relative + url = url.replace(/^https?:/, ''); + + // onreadystatechange not supported by XDomainRequest + request.onload = handler; + } + + // NOTE: auth is intentionally sent as part of query string (NOT as custom + // HTTP header) so as to avoid preflight CORS requests + request.open('POST', url + '?' + urlencode(opts.auth)); + request.send(JSON.stringify(opts.data)); + }, + + _makeRequest: function(opts) { + var hasCORS = + 'withCredentials' in new XMLHttpRequest() || + typeof XDomainRequest !== 'undefined'; + + return (hasCORS ? this._makeXhrRequest : this._makeImageRequest)(opts); + }, + + // Note: this is shitty, but I can't figure out how to get + // sinon to stub document.createElement without breaking everything + // so this wrapper is just so I can stub it for tests. + _newImage: function() { + return document.createElement('img'); + }, + + _logDebug: function(level) { + if (this._originalConsoleMethods[level] && this.debug) { + // In IE<10 console methods do not have their own 'apply' method + Function.prototype.apply.call( + this._originalConsoleMethods[level], + this._originalConsole, + [].slice.call(arguments, 1) + ); + } + }, + + _mergeContext: function(key, context) { + if (isUndefined(context)) { + delete this._globalContext[key]; + } else { + this._globalContext[key] = objectMerge(this._globalContext[key] || {}, context); + } + } +}; + +// Deprecations +Raven.prototype.setUser = Raven.prototype.setUserContext; +Raven.prototype.setReleaseContext = Raven.prototype.setRelease; + +module.exports = Raven; + +},{"1":1,"4":4,"5":5}],3:[function(_dereq_,module,exports){ +/** + * Enforces a single instance of the Raven client, and the + * main entry point for Raven. If you are a consumer of the + * Raven library, you SHOULD load this file (vs raven.js). + **/ + +'use strict'; + +var RavenConstructor = _dereq_(2); + +var _Raven = window.Raven; + +var Raven = new RavenConstructor(); + +/* + * Allow multiple versions of Raven to be installed. + * Strip Raven from the global context and returns the instance. + * + * @return {Raven} + */ +Raven.noConflict = function () { + window.Raven = _Raven; + return Raven; +}; + +Raven.afterLoad(); + +module.exports = Raven; + +},{"2":2}],4:[function(_dereq_,module,exports){ +'use strict'; + +var objectPrototype = Object.prototype; + +function isUndefined(what) { + return what === void 0; +} + +function isFunction(what) { + return typeof what === 'function'; +} + +function isString(what) { + return objectPrototype.toString.call(what) === '[object String]'; +} + +function isObject(what) { + return typeof what === 'object' && what !== null; +} + +function isEmptyObject(what) { + for (var _ in what) return false; // eslint-disable-line guard-for-in, no-unused-vars + return true; +} + +// Sorta yanked from https://github.com/joyent/node/blob/aa3b4b4/lib/util.js#L560 +// with some tiny modifications +function isError(what) { + var toString = objectPrototype.toString.call(what); + return isObject(what) && + toString === '[object Error]' || + toString === '[object Exception]' || // Firefox NS_ERROR_FAILURE Exceptions + what instanceof Error; +} + +function each(obj, callback) { + var i, j; + + if (isUndefined(obj.length)) { + for (i in obj) { + if (hasKey(obj, i)) { + callback.call(null, i, obj[i]); + } + } + } else { + j = obj.length; + if (j) { + for (i = 0; i < j; i++) { + callback.call(null, i, obj[i]); + } + } + } +} + +function objectMerge(obj1, obj2) { + if (!obj2) { + return obj1; + } + each(obj2, function(key, value){ + obj1[key] = value; + }); + return obj1; +} + +function truncate(str, max) { + return !max || str.length <= max ? str : str.substr(0, max) + '\u2026'; +} + +/** + * hasKey, a better form of hasOwnProperty + * Example: hasKey(MainHostObject, property) === true/false + * + * @param {Object} host object to check property + * @param {string} key to check + */ +function hasKey(object, key) { + return objectPrototype.hasOwnProperty.call(object, key); +} + +function joinRegExp(patterns) { + // Combine an array of regular expressions and strings into one large regexp + // Be mad. + var sources = [], + i = 0, len = patterns.length, + pattern; + + for (; i < len; i++) { + pattern = patterns[i]; + if (isString(pattern)) { + // If it's a string, we need to escape it + // Taken from: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions + sources.push(pattern.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, '\\$1')); + } else if (pattern && pattern.source) { + // If it's a regexp already, we want to extract the source + sources.push(pattern.source); + } + // Intentionally skip other cases + } + return new RegExp(sources.join('|'), 'i'); +} + +function urlencode(o) { + var pairs = []; + each(o, function(key, value) { + pairs.push(encodeURIComponent(key) + '=' + encodeURIComponent(value)); + }); + return pairs.join('&'); +} + +function uuid4() { + var crypto = window.crypto || window.msCrypto; + + if (!isUndefined(crypto) && crypto.getRandomValues) { + // Use window.crypto API if available + var arr = new Uint16Array(8); + crypto.getRandomValues(arr); + + // set 4 in byte 7 + arr[3] = arr[3] & 0xFFF | 0x4000; + // set 2 most significant bits of byte 9 to '10' + arr[4] = arr[4] & 0x3FFF | 0x8000; + + var pad = function(num) { + var v = num.toString(16); + while (v.length < 4) { + v = '0' + v; + } + return v; + }; + + return pad(arr[0]) + pad(arr[1]) + pad(arr[2]) + pad(arr[3]) + pad(arr[4]) + + pad(arr[5]) + pad(arr[6]) + pad(arr[7]); + } else { + // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/2117523#2117523 + return 'xxxxxxxxxxxx4xxxyxxxxxxxxxxxxxxx'.replace(/[xy]/g, function(c) { + var r = Math.random()*16|0, + v = c === 'x' ? r : r&0x3|0x8; + return v.toString(16); + }); + } +} + +module.exports = { + isUndefined: isUndefined, + isFunction: isFunction, + isString: isString, + isObject: isObject, + isEmptyObject: isEmptyObject, + isError: isError, + each: each, + objectMerge: objectMerge, + truncate: truncate, + hasKey: hasKey, + joinRegExp: joinRegExp, + urlencode: urlencode, + uuid4: uuid4 +}; + +},{}],5:[function(_dereq_,module,exports){ +'use strict'; + +var utils = _dereq_(4); + +var hasKey = utils.hasKey; +var isString = utils.isString; +var isUndefined = utils.isUndefined; + +/* + TraceKit - Cross brower stack traces - github.com/occ/TraceKit + MIT license +*/ + +var TraceKit = { + remoteFetching: false, + collectWindowErrors: true, + // 3 lines before, the offending line, 3 lines after + linesOfContext: 7, + debug: false +}; + +// global reference to slice +var _slice = [].slice; +var UNKNOWN_FUNCTION = '?'; + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Error_types +var ERROR_TYPES_RE = /^(?:Uncaught )?((?:Eval|Internal|Range|Reference|Syntax|Type|URI)Error)\: ?(.*)$/; + +function getLocationHref() { + if (typeof document === 'undefined') + return ''; + + return document.location.href; +} + +/** + * 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); + } + } + } + + /** + * Remove all crash handlers. + */ + function unsubscribeAll() { + uninstallGlobalHandler(); + handlers = []; + } + + /** + * Dispatch stack information to all handlers. + * @param {Object.} stack + */ + function notifyHandlers(stack, isWindowError) { + var exception = null; + if (isWindowError && !TraceKit.collectWindowErrors) { + return; + } + for (var i in handlers) { + if (hasKey(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)} colNo The column number at which the error + * occurred. + * @param {?Error} ex The actual Error object. + */ + function traceKitWindowOnError(message, url, lineNo, colNo, ex) { + var stack = null; + + if (lastExceptionStack) { + TraceKit.computeStackTrace.augmentStackTraceWithInitialElement(lastExceptionStack, url, lineNo, message); + processLastException(); + } else if (ex) { + // New chrome and blink send along a real error object + // Let's just report that like a normal error. + // See: https://mikewest.org/2013/08/debugging-runtime-errors-with-window-onerror + stack = TraceKit.computeStackTrace(ex); + notifyHandlers(stack, true); + } else { + var location = { + 'url': url, + 'line': lineNo, + 'column': colNo + }; + location.func = TraceKit.computeStackTrace.guessFunctionName(location.url, location.line); + location.context = TraceKit.computeStackTrace.gatherContext(location.url, location.line); + + var name = undefined; + var msg = message; // must be new var or will modify original `arguments` + var groups; + if (isString(message)) { + var groups = message.match(ERROR_TYPES_RE); + if (groups) { + name = groups[1]; + msg = groups[2]; + } + } + + stack = { + 'name': name, + 'message': msg, + 'url': getLocationHref(), + 'stack': [location] + }; + notifyHandlers(stack, true); + } + + if (_oldOnerrorHandler) { + return _oldOnerrorHandler.apply(this, arguments); + } + + return false; + } + + function installGlobalHandler () + { + if (_onErrorHandlerInstalled) { + return; + } + _oldOnerrorHandler = window.onerror; + window.onerror = traceKitWindowOnError; + _onErrorHandlerInstalled = true; + } + + function uninstallGlobalHandler () + { + if (!_onErrorHandlerInstalled) { + return; + } + window.onerror = _oldOnerrorHandler; + _onErrorHandlerInstalled = false; + _oldOnerrorHandler = undefined; + } + + 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 + * @param {?boolean} rethrow If false, do not re-throw the exception. + * Only used for window.onerror to not cause an infinite loop of + * rethrowing. + */ + function report(ex, rethrow) { + var args = _slice.call(arguments, 1); + 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 = args; + + // 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)); + + if (rethrow !== false) { + throw ex; // re-throw to propagate to the top level (and cause window.onerror) + } + } + + report.subscribe = subscribe; + report.unsubscribe = unsubscribe; + report.uninstall = unsubscribeAll; + return report; +}()); + +/** + * TraceKit.computeStackTrace: cross-browser stack traces in JavaScript + * + * Syntax: + * 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# + * + * 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). + * + */ +TraceKit.computeStackTrace = (function computeStackTraceWrapper() { + var 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.} Source contents. + */ + function getSource(url) { + if (!isString(url)) return []; + if (!hasKey(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.} 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.} urls A list of URLs to search. + * @return {?Object.} 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.} An object containing + * the url, line, and column number of the defined function. + */ + function findSourceByFunctionBody(func) { + if (typeof document === 'undefined') + 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.} Stack trace information. + */ + function computeStackTraceFromStackProp(ex) { + if (isUndefined(ex.stack) || !ex.stack) return; + + var chrome = /^\s*at (.*?) ?\(((?:file|https?|blob|chrome-extension|native|eval|).*?)(?::(\d+))?(?::(\d+))?\)?\s*$/i, + gecko = /^\s*(.*?)(?:\((.*?)\))?(?:^|@)((?:file|https?|blob|chrome|\[native).*?)(?::(\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].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 { + 'name': ex.name, + 'message': ex.message, + 'url': getLocationHref(), + 'stack': stack + }; + } + + /** + * Computes stack trace information from the stacktrace property. + * Opera 10 uses this property. + * @param {Error} ex + * @return {?Object.} 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 (isUndefined(ex.stacktrace) || !ex.stacktrace) return; + + var opera10Regex = / line (\d+).*script (?:in )?(\S+)(?:: in function (\S+))?$/i, + opera11Regex = / line (\d+), column (\d+)\s*(?:in (?:]+)>|([^\)]+))\((.*)\))? 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 { + 'name': ex.name, + 'message': ex.message, + 'url': getLocationHref(), + '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.} Stack information. + */ + function computeStackTraceFromOperaMultiLineMessage(ex) { + // 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 (hasKey(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