devdocs/assets/javascripts/vendor/raven.js

/*! 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<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
'use strict';

function RavenConfigError(message) {
    this.name = 'RavenConfigError';
    this.message = message;
}
RavenConfigError.prototype = new Error();
RavenConfigError.prototype.constructor = RavenConfigError;

module.exports = RavenConfigError;

},{}],2:[function(_dereq_,module,exports){
/*global XDomainRequest:false*/
'use strict';

var TraceKit = _dereq_(5);
var RavenConfigError = _dereq_(1);
var utils = _dereq_(4);

var isFunction = utils.isFunction;
var isUndefined = utils.isUndefined;
var isError = utils.isError;
var isEmptyObject = utils.isEmptyObject;
var hasKey = utils.hasKey;
var joinRegExp = utils.joinRegExp;
var each = utils.each;
var objectMerge = utils.objectMerge;
var truncate = utils.truncate;
var urlencode = utils.urlencode;
var uuid4 = utils.uuid4;

var dsnKeys = 'source protocol user pass host port path'.split(' '),
    dsnPattern = /^(?:(\w+):)?\/\/(?:(\w+)(:\w+)?@)?([\w\.-]+)(?::(\d+))?(\/.*)/;

function now() {
    return +new Date();
}

// First, check for JSON support
// If there is no JSON, we no-op the core features of Raven
// since JSON is required to encode the payload
function Raven() {
    this._hasJSON = !!(typeof JSON === 'object' && JSON.stringify);
    // Raven can run in contexts where there's no document (react-native)
    this._hasDocument = typeof document !== 'undefined';
    this._lastCapturedException = null;
    this._lastEventId = null;
    this._globalServer = null;
    this._globalKey = null;
    this._globalProject = null;
    this._globalContext = {};
    this._globalOptions = {
        logger: 'javascript',
        ignoreErrors: [],
        ignoreUrls: [],
        whitelistUrls: [],
        includePaths: [],
        crossOrigin: 'anonymous',
        collectWindowErrors: true,
        maxMessageLength: 0,
        stackTraceLimit: 50
    };
    this._ignoreOnError = 0;
    this._isRavenInstalled = false;
    this._originalErrorStackTraceLimit = Error.stackTraceLimit;
    // capture references to window.console *and* all its methods first
    // before the console plugin has a chance to monkey patch
    this._originalConsole = window.console || {};
    this._originalConsoleMethods = {};
    this._plugins = [];
    this._startTime = now();
    this._wrappedBuiltIns = [];

    for (var method in this._originalConsole) {  // eslint-disable-line guard-for-in
      this._originalConsoleMethods[method] = this._originalConsole[method];
    }
}

/*
 * The core Raven singleton
 *
 * @this {Raven}
 */

Raven.prototype = {
    // Hardcode version string so that raven source can be loaded directly via
    // webpack (using a build step causes webpack #1617). Grunt verifies that
    // this value matches package.json during build.
    //   See: https://github.com/getsentry/raven-js/issues/465
    VERSION: '2.3.0',

    debug: false,

    TraceKit: TraceKit, // alias to TraceKit

    /*
     * Configure Raven with a DSN and extra options
     *
     * @param {string} dsn The public Sentry DSN
     * @param {object} options Optional set of of global options [optional]
     * @return {Raven}
     */
    config: function(dsn, options) {
        var self = this;

        if (this._globalServer) {
                this._logDebug('error', 'Error: Raven has already been configured');
            return this;
        }
        if (!dsn) return this;

        // merge in options
        if (options) {
            each(options, function(key, value){
                // tags and extra are special and need to be put into context
                if (key === 'tags' || key === 'extra') {
                    self._globalContext[key] = value;
                } else {
                    self._globalOptions[key] = value;
                }
            });
        }

        var uri = this._parseDSN(dsn),
            lastSlash = uri.path.lastIndexOf('/'),
            path = uri.path.substr(1, lastSlash);

        this._dsn = dsn;

        // "Script error." is hard coded into browsers for errors that it can't read.
        // this is the result of a script being pulled in from an external domain and CORS.
        this._globalOptions.ignoreErrors.push(/^Script error\.?$/);
        this._globalOptions.ignoreErrors.push(/^Javascript error: Script error\.? on line 0$/);

        // join regexp rules into one big rule
        this._globalOptions.ignoreErrors = joinRegExp(this._globalOptions.ignoreErrors);
        this._globalOptions.ignoreUrls = this._globalOptions.ignoreUrls.length ? joinRegExp(this._globalOptions.ignoreUrls) : false;
        this._globalOptions.whitelistUrls = this._globalOptions.whitelistUrls.length ? joinRegExp(this._globalOptions.whitelistUrls) : false;
        this._globalOptions.includePaths = joinRegExp(this._globalOptions.includePaths);

        this._globalKey = uri.user;
        this._globalSecret = uri.pass && uri.pass.substr(1);
        this._globalProject = uri.path.substr(lastSlash + 1);

        this._globalServer = this._getGlobalServer(uri);

        this._globalEndpoint = this._globalServer +
            '/' + path + 'api/' + this._globalProject + '/store/';

        if (this._globalOptions.fetchContext) {
            TraceKit.remoteFetching = true;
        }

        if (this._globalOptions.linesOfContext) {
            TraceKit.linesOfContext = this._globalOptions.linesOfContext;
        }

        TraceKit.collectWindowErrors = !!this._globalOptions.collectWindowErrors;

        // return for chaining
        return this;
    },

    /*
     * Installs a global window.onerror error handler
     * to capture and report uncaught exceptions.
     * At this point, install() is required to be called due
     * to the way TraceKit is set up.
     *
     * @return {Raven}
     */
    install: function() {
        var self = this;
        if (this.isSetup() && !this._isRavenInstalled) {
            TraceKit.report.subscribe(function () {
                self._handleOnErrorStackInfo.apply(self, arguments);
            });
            this._wrapBuiltIns();

            // Install all of the plugins
            this._drainPlugins();

            this._isRavenInstalled = true;
        }

        Error.stackTraceLimit = this._globalOptions.stackTraceLimit;
        return this;
    },

    /*
     * Wrap code within a context so Raven can capture errors
     * reliably across domains that is executed immediately.
     *
     * @param {object} options A specific set of options for this context [optional]
     * @param {function} func The callback to be immediately executed within the context
     * @param {array} args An array of arguments to be called with the callback [optional]
     */
    context: function(options, func, args) {
        if (isFunction(options)) {
            args = func || [];
            func = options;
            options = undefined;
        }

        return this.wrap(options, func).apply(this, args);
    },

    /*
     * Wrap code within a context and returns back a new function to be executed
     *
     * @param {object} options A specific set of options for this context [optional]
     * @param {function} func The function to be wrapped in a new context
     * @return {function} The newly wrapped functions with a context
     */
    wrap: function(options, func) {
        var self = this;

        // 1 argument has been passed, and it's not a function
        // so just return it
        if (isUndefined(func) && !isFunction(options)) {
            return options;
        }

        // options is optional
        if (isFunction(options)) {
            func = options;
            options = undefined;
        }

        // At this point, we've passed along 2 arguments, and the second one
        // is not a function either, so we'll just return the second argument.
        if (!isFunction(func)) {
            return func;
        }

        // We don't wanna wrap it twice!
        try {
            if (func.__raven__) {
                return func;
            }
        } catch (e) {
            // Just accessing the __raven__ prop in some Selenium environments
            // can cause a "Permission denied" exception (see raven-js#495).
            // Bail on wrapping and return the function as-is (defers to window.onerror).
            return func;
        }

        // If this has already been wrapped in the past, return that
        if (func.__raven_wrapper__ ){
            return func.__raven_wrapper__ ;
        }

        function wrapped() {
            var args = [], i = arguments.length,
                deep = !options || options && options.deep !== false;
            // Recursively wrap all of a function's arguments that are
            // functions themselves.

            while(i--) args[i] = deep ? self.wrap(options, arguments[i]) : arguments[i];

            try {
                return func.apply(this, args);
            } catch(e) {
                self._ignoreNextOnError();
                self.captureException(e, options);
                throw e;
            }
        }

        // copy over properties of the old function
        for (var property in func) {
            if (hasKey(func, property)) {
                wrapped[property] = func[property];
            }
        }
        func.__raven_wrapper__ = wrapped;

        wrapped.prototype = func.prototype;

        // Signal that this function has been wrapped already
        // for both debugging and to prevent it to being wrapped twice
        wrapped.__raven__ = true;
        wrapped.__inner__ = func;

        return wrapped;
    },

    /*
     * Uninstalls the global error handler.
     *
     * @return {Raven}
     */
    uninstall: function() {
        TraceKit.report.uninstall();

        this._restoreBuiltIns();

        Error.stackTraceLimit = this._originalErrorStackTraceLimit;
        this._isRavenInstalled = false;

        return this;
    },

    /*
     * Manually capture an exception and send it over to Sentry
     *
     * @param {error} ex An exception to be logged
     * @param {object} options A specific set of options for this error [optional]
     * @return {Raven}
     */
    captureException: function(ex, options) {
        // If not an Error is passed through, recall as a message instead
        if (!isError(ex)) return this.captureMessage(ex, options);

        // Store the raw exception object for potential debugging and introspection
        this._lastCapturedException = ex;

        // TraceKit.report will re-raise any exception passed to it,
        // which means you have to wrap it in try/catch. Instead, we
        // can wrap it here and only re-raise if TraceKit.report
        // raises an exception different from the one we asked to
        // report on.
        try {
            var stack = TraceKit.computeStackTrace(ex);
            this._handleStackInfo(stack, options);
        } catch(ex1) {
            if(ex !== ex1) {
                throw ex1;
            }
        }

        return this;
    },

    /*
     * Manually send a message to Sentry
     *
     * @param {string} msg A plain message to be captured in Sentry
     * @param {object} options A specific set of options for this message [optional]
     * @return {Raven}
     */
    captureMessage: function(msg, options) {
        // config() automagically converts ignoreErrors from a list to a RegExp so we need to test for an
        // early call; we'll error on the side of logging anything called before configuration since it's
        // probably something you should see:
        if (!!this._globalOptions.ignoreErrors.test && this._globalOptions.ignoreErrors.test(msg)) {
            return;
        }

        // Fire away!
        this._send(
            objectMerge({
                message: msg + ''  // Make sure it's actually a string
            }, options)
        );

        return this;
    },

    addPlugin: function(plugin /*arg1, arg2, ... argN*/) {
        var pluginArgs = Array.prototype.slice.call(arguments, 1);

        this._plugins.push([plugin, pluginArgs]);
        if (this._isRavenInstalled) {
            this._drainPlugins();
        }

        return this;
    },

    /*
     * Set/clear a user to be sent along with the payload.
     *
     * @param {object} user An object representing user data [optional]
     * @return {Raven}
     */
    setUserContext: function(user) {
        // Intentionally do not merge here since that's an unexpected behavior.
        this._globalContext.user = user;

        return this;
    },

    /*
     * Merge extra attributes to be sent along with the payload.
     *
     * @param {object} extra An object representing extra data [optional]
     * @return {Raven}
     */
    setExtraContext: function(extra) {
        this._mergeContext('extra', extra);

        return this;
    },

    /*
     * Merge tags to be sent along with the payload.
     *
     * @param {object} tags An object representing tags [optional]
     * @return {Raven}
     */
    setTagsContext: function(tags) {
        this._mergeContext('tags', tags);

        return this;
    },

    /*
     * Clear all of the context.
     *
     * @return {Raven}
     */
    clearContext: function() {
        this._globalContext = {};

        return this;
    },

    /*
     * Get a copy of the current context. This cannot be mutated.
     *
     * @return {object} copy of context
     */
    getContext: function() {
        // lol javascript
        return JSON.parse(JSON.stringify(this._globalContext));
    },

    /*
     * Set release version of application
     *
     * @param {string} release Typically something like a git SHA to identify version
     * @return {Raven}
     */
    setRelease: function(release) {
        this._globalOptions.release = release;

        return this;
    },

    /*
     * Set the dataCallback option
     *
     * @param {function} callback The callback to run which allows the
     *                            data blob to be mutated before sending
     * @return {Raven}
     */
    setDataCallback: function(callback) {
        this._globalOptions.dataCallback = callback;

        return this;
    },

    /*
     * Set the shouldSendCallback option
     *
     * @param {function} callback The callback to run which allows
     *                            introspecting the blob before sending
     * @return {Raven}
     */
    setShouldSendCallback: function(callback) {
        this._globalOptions.shouldSendCallback = callback;

        return this;
    },

    /**
     * Override the default HTTP transport mechanism that transmits data
     * to the Sentry server.
     *
     * @param {function} transport Function invoked instead of the default
     *                             `makeRequest` handler.
     *
     * @return {Raven}
     */
    setTransport: function(transport) {
        this._globalOptions.transport = transport;

        return this;
    },

    /*
     * Get the latest raw exception that was captured by Raven.
     *
     * @return {error}
     */
    lastException: function() {
        return this._lastCapturedException;
    },

    /*
     * Get the last event id
     *
     * @return {string}
     */
    lastEventId: function() {
        return this._lastEventId;
    },

    /*
     * Determine if Raven is setup and ready to go.
     *
     * @return {boolean}
     */
    isSetup: function() {
        if (!this._hasJSON) return false;  // needs JSON support
        if (!this._globalServer) {
            if (!this.ravenNotConfiguredError) {
              this.ravenNotConfiguredError = true;
              this._logDebug('error', 'Error: Raven has not been configured.');
            }
            return false;
        }
        return true;
    },

    afterLoad: function () {
        // TODO: remove window dependence?

        // Attempt to initialize Raven on load
        var RavenConfig = window.RavenConfig;
        if (RavenConfig) {
            this.config(RavenConfig.dsn, RavenConfig.config).install();
        }
    },

    showReportDialog: function (options) {
        if (!window.document) // doesn't work without a document (React native)
            return;

        options = options || {};

        var lastEventId = options.eventId || this.lastEventId();
        if (!lastEventId) {
            throw new RavenConfigError('Missing eventId');
        }

        var dsn = options.dsn || this._dsn;
        if (!dsn) {
            throw new RavenConfigError('Missing DSN');
        }

        var encode = encodeURIComponent;
        var qs = '';
        qs += '?eventId=' + encode(lastEventId);
        qs += '&dsn=' + encode(dsn);

        var user = options.user || this._globalContext.user;
        if (user) {
            if (user.name)  qs += '&name=' + encode(user.name);
            if (user.email) qs += '&email=' + encode(user.email);
        }

        var globalServer = this._getGlobalServer(this._parseDSN(dsn));

        var script = document.createElement('script');
        script.async = true;
        script.src = globalServer + '/api/embed/error-page/' + qs;
        (document.head || document.body).appendChild(script);
    },

    /**** Private functions ****/
    _ignoreNextOnError: function () {
        var self = this;
        this._ignoreOnError += 1;
        setTimeout(function () {
            // onerror should trigger before setTimeout
            self._ignoreOnError -= 1;
        });
    },

    _triggerEvent: function(eventType, options) {
        // NOTE: `event` is a native browser thing, so let's avoid conflicting wiht it
        var evt, key;

        if (!this._hasDocument)
            return;

        options = options || {};

        eventType = 'raven' + eventType.substr(0,1).toUpperCase() + eventType.substr(1);

        if (document.createEvent) {
            evt = document.createEvent('HTMLEvents');
            evt.initEvent(eventType, true, true);
        } else {
            evt = document.createEventObject();
            evt.eventType = eventType;
        }

        for (key in options) if (hasKey(options, key)) {
            evt[key] = options[key];
        }

        if (document.createEvent) {
            // IE9 if standards
            document.dispatchEvent(evt);
        } else {
            // IE8 regardless of Quirks or Standards
            // IE9 if quirks
            try {
                document.fireEvent('on' + evt.eventType.toLowerCase(), evt);
            } catch(e) {
                // Do nothing
            }
        }
    },

    /**
     * Install any queued plugins
     */
    _wrapBuiltIns: function() {
        var self = this;

        function fill(obj, name, replacement, noUndo) {
            var orig = obj[name];
            obj[name] = replacement(orig);
            if (!noUndo) {
                self._wrappedBuiltIns.push([obj, name, orig]);
            }
        }

        function wrapTimeFn(orig) {
            return function (fn, t) { // preserve arity
                // Make a copy of the arguments
                var args = [].slice.call(arguments);
                var originalCallback = args[0];
                if (isFunction(originalCallback)) {
                    args[0] = self.wrap(originalCallback);
                }

                // IE < 9 doesn't support .call/.apply on setInterval/setTimeout, but it
                // also supports only two arguments and doesn't care what this is, so we
                // can just call the original function directly.
                if (orig.apply) {
                    return orig.apply(this, args);
                } else {
                    return orig(args[0], args[1]);
                }
            };
        }

        fill(window, 'setTimeout', wrapTimeFn);
        fill(window, 'setInterval', wrapTimeFn);
        if (window.requestAnimationFrame) {
            fill(window, 'requestAnimationFrame', function (orig) {
                return function (cb) {
                    return orig(self.wrap(cb));
                };
            });
        }

        // event targets borrowed from bugsnag-js:
        // https://github.com/bugsnag/bugsnag-js/blob/master/src/bugsnag.js#L666
        'EventTarget Window Node ApplicationCache AudioTrackList ChannelMergerNode CryptoOperation EventSource FileReader HTMLUnknownElement IDBDatabase IDBRequest IDBTransaction KeyOperation MediaController MessagePort ModalWindow Notification SVGElementInstance Screen TextTrack TextTrackCue TextTrackList WebSocket WebSocketWorker Worker XMLHttpRequest XMLHttpRequestEventTarget XMLHttpRequestUpload'.replace(/\w+/g, function (global) {
            var proto = window[global] && window[global].prototype;
            if (proto && proto.hasOwnProperty && proto.hasOwnProperty('addEventListener')) {
                fill(proto, 'addEventListener', function(orig) {
                    return function (evt, fn, capture, secure) { // preserve arity
                        try {
                            if (fn && fn.handleEvent) {
                                fn.handleEvent = self.wrap(fn.handleEvent);
                            }
                        } catch (err) {
                            // can sometimes get 'Permission denied to access property "handle Event'
                        }
                        return orig.call(this, evt, self.wrap(fn), capture, secure);
                    };
                });
                fill(proto, 'removeEventListener', function (orig) {
                    return function (evt, fn, capture, secure) {
                        fn = fn && (fn.__raven_wrapper__ ? fn.__raven_wrapper__  : fn);
                        return orig.call(this, evt, fn, capture, secure);
                    };
                });
            }
        });

        if ('XMLHttpRequest' in window) {
            fill(XMLHttpRequest.prototype, 'send', function(origSend) {
                return function (data) { // preserve arity
                    var xhr = this;
                    'onreadystatechange onload onerror onprogress'.replace(/\w+/g, function (prop) {
                        if (prop in xhr && Object.prototype.toString.call(xhr[prop]) === '[object Function]') {
                            fill(xhr, prop, function (orig) {
                                return self.wrap(orig);
                            }, true /* noUndo */); // don't track filled methods on XHR instances
                        }
                    });
                    return origSend.apply(this, arguments);
                };
            });
        }

        var $ = window.jQuery || window.$;
        if ($ && $.fn && $.fn.ready) {
            fill($.fn, 'ready', function (orig) {
                return function (fn) {
                    return orig.call(this, self.wrap(fn));
                };
            });
        }
    },

    _restoreBuiltIns: function () {
        // restore any wrapped builtins
        var builtin;
        while (this._wrappedBuiltIns.length) {
            builtin = this._wrappedBuiltIns.shift();

            var obj = builtin[0],
              name = builtin[1],
              orig = builtin[2];

            obj[name] = orig;
        }
    },

    _drainPlugins: function() {
        var self = this;

        // FIX ME TODO
        each(this._plugins, function(_, plugin) {
            var installer = plugin[0];
            var args = plugin[1];
            installer.apply(self, [self].concat(args));
        });
    },

    _parseDSN: function(str) {
        var m = dsnPattern.exec(str),
            dsn = {},
            i = 7;

        try {
            while (i--) dsn[dsnKeys[i]] = m[i] || '';
        } catch(e) {
            throw new RavenConfigError('Invalid DSN: ' + str);
        }

        if (dsn.pass && !this._globalOptions.allowSecretKey) {
            throw new RavenConfigError('Do not specify your secret key in the DSN. See: http://bit.ly/raven-secret-key');
        }

        return dsn;
    },

    _getGlobalServer: function(uri) {
        // assemble the endpoint from the uri pieces
        var globalServer = '//' + uri.host +
            (uri.port ? ':' + uri.port : '');

        if (uri.protocol) {
            globalServer = uri.protocol + ':' + globalServer;
        }
        return globalServer;
    },

    _handleOnErrorStackInfo: function() {
        // if we are intentionally ignoring errors via onerror, bail out
        if (!this._ignoreOnError) {
            this._handleStackInfo.apply(this, arguments);
        }
    },

    _handleStackInfo: function(stackInfo, options) {
        var self = this;
        var frames = [];

        if (stackInfo.stack && stackInfo.stack.length) {
            each(stackInfo.stack, function(i, stack) {
                var frame = self._normalizeFrame(stack);
                if (frame) {
                    frames.push(frame);
                }
            });
        }

        this._triggerEvent('handle', {
            stackInfo: stackInfo,
            options: options
        });

        this._processException(
            stackInfo.name,
            stackInfo.message,
            stackInfo.url,
            stackInfo.lineno,
            frames.slice(0, this._globalOptions.stackTraceLimit),
            options
        );
    },

    _normalizeFrame: function(frame) {
        if (!frame.url) return;

        // normalize the frames data
        var normalized = {
            filename:   frame.url,
            lineno:     frame.line,
            colno:      frame.column,
            'function': frame.func || '?'
        }, context = this._extractContextFromFrame(frame), i;

        if (context) {
            var keys = ['pre_context', 'context_line', 'post_context'];
            i = 3;
            while (i--) normalized[keys[i]] = context[i];
        }

        normalized.in_app = !( // determine if an exception came from outside of our app
            // first we check the global includePaths list.
            !!this._globalOptions.includePaths.test && !this._globalOptions.includePaths.test(normalized.filename) ||
            // Now we check for fun, if the function name is Raven or TraceKit
            /(Raven|TraceKit)\./.test(normalized['function']) ||
            // finally, we do a last ditch effort and check for raven.min.js
            /raven\.(min\.)?js$/.test(normalized.filename)
        );

        return normalized;
    },

    _extractContextFromFrame: function(frame) {
        // immediately check if we should even attempt to parse a context
        if (!frame.context || !this._globalOptions.fetchContext) return;

        var context = frame.context,
            pivot = ~~(context.length / 2),
            i = context.length, isMinified = false;

        while (i--) {
            // We're making a guess to see if the source is minified or not.
            // To do that, we make the assumption if *any* of the lines passed
            // in are greater than 300 characters long, we bail.
            // Sentry will see that there isn't a context
            if (context[i].length > 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.<string, *>} 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.<string>} 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.<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('<', '(?:<|&lt;)').replace('>', '(?:>|&gt;)').replace('&', '(?:&|&amp;)').replace('"', '(?:"|&quot;)').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 (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.<string, *>} Stack trace information.
     */
    function computeStackTraceFromStackProp(ex) {
        if (isUndefined(ex.stack) || !ex.stack) return;

        var chrome = /^\s*at (.*?) ?\(((?:file|https?|blob|chrome-extension|native|eval|<anonymous>).*?)(?::(\d+))?(?::(\d+))?\)?\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.<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 (isUndefined(ex.stacktrace) || !ex.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 {
            '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.<string, *>} 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 <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 {
            'name': ex.name,
            'message': lines[0],
            'url': getLocationHref(),
            '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,
                '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 = {
            'name': ex.name,
            'message': ex.message,
            'url': getLocationHref(),
            '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 (TraceKit.debug) {
                throw e;
            }
        }

        try {
            stack = computeStackTraceFromStackProp(ex);
            if (stack) {
                return stack;
            }
        } catch (e) {
            if (TraceKit.debug) {
                throw e;
            }
        }

        try {
            stack = computeStackTraceFromOperaMultiLineMessage(ex);
            if (stack) {
                return stack;
            }
        } catch (e) {
            if (TraceKit.debug) {
                throw e;
            }
        }

        try {
            stack = computeStackTraceByWalkingCallerChain(ex, depth + 1);
            if (stack) {
                return stack;
            }
        } catch (e) {
            if (TraceKit.debug) {
                throw e;
            }
        }

        return {
            'name': ex.name,
            'message': ex.message,
            'url': getLocationHref()
        };
    }

    computeStackTrace.augmentStackTraceWithInitialElement = augmentStackTraceWithInitialElement;
    computeStackTrace.computeStackTraceFromStackProp = computeStackTraceFromStackProp;
    computeStackTrace.guessFunctionName = guessFunctionName;
    computeStackTrace.gatherContext = gatherContext;

    return computeStackTrace;
}());

module.exports = TraceKit;

},{"4":4}]},{},[3])(3)
});