23 |
50 | )
51 | }
52 |
53 | const download = (e) => {
54 | let filename = parseFileName(e.target.href)
55 | try {
56 | parseSourceMap(filename, contentMap[e.target.href])
57 | } catch(e) {
58 | console.log(e)
59 | }
60 | }
61 |
62 | const downloadAll = (e) => {
63 | let errors = []
64 | Object.keys(contentMap).forEach(key => {
65 | let filename = parseFileName(key)
66 | try {
67 | parseSourceMap(filename, contentMap[key])
68 | } catch(e) {
69 | errors.push(e)
70 | }
71 | })
72 |
73 | console.log(errors)
74 | }
75 |
76 | const parseFileName = (path) => {
77 | let filename = path.split('/')
78 | return filename[filename.length - 1]
79 | }
80 |
81 | const parseSourceMap = (sourceMapFileName, rawSourceMap) => {
82 | const SourceMapConsumer = sourceMap.SourceMapConsumer
83 | const consumer = new SourceMapConsumer(rawSourceMap);
84 |
85 | if (consumer.hasContentsOfAllSources()) {
86 | var zip = new JSZip();
87 |
88 | var img = zip.folder('images');
89 | consumer.sources.forEach(fileName => {
90 | if (fileName.indexOf('webpack://') !== 0) {
91 | return
92 | }
93 |
94 | let fileContent = consumer.sourceContentFor(fileName)
95 | fileName = fileName.replace(/^webpack:\/\//, '')
96 | fileName = fileName.replace(/^\//, '')
97 | fileName = fileName.replace(/^\~\//, 'node_modules/')
98 | addZipFile(zip, fileName, fileContent)
99 | })
100 |
101 | return zip.generateAsync({type: 'blob'})
102 | .then(function(content) {
103 | var reader = new FileReader();
104 | reader.readAsDataURL(content);
105 | reader.onloadend = () => {
106 | chrome.downloads.download({ filename: sourceMapFileName + '.zip', url: reader.result });
107 | }
108 | });
109 | } else {
110 | console.log('TODO')
111 | }
112 | }
113 |
114 | const addZipFile = (root, filename, content) => {
115 | let folders = filename.split('/')
116 | let folder = root
117 | for(let i = 0; i < folders.length - 1; i++) {
118 | folder = folder.folder(folders[i])
119 | }
120 |
121 | folder.file(folders[folders.length - 1], content)
122 | }
123 |
124 | function fileSizeIEC(a,b,c,d,e){
125 | return (b=Math,c=b.log,d=1024,e=c(a)/c(d)|0,a/b.pow(d,e)).toFixed(2)+' '+(e?'KMGTPEZY'[--e]+'B':'Bytes')
126 | }
--------------------------------------------------------------------------------
/gulpfile.babel.js:
--------------------------------------------------------------------------------
1 | // generated on 2017-03-02 using generator-chrome-extension 0.6.1
2 | import gulp from 'gulp';
3 | import gulpLoadPlugins from 'gulp-load-plugins';
4 | import del from 'del';
5 | import runSequence from 'run-sequence';
6 | import {stream as wiredep} from 'wiredep';
7 |
8 | const $ = gulpLoadPlugins();
9 |
10 | gulp.task('extras', () => {
11 | return gulp.src([
12 | 'app/*.*',
13 | 'app/_locales/**',
14 | '!app/scripts.babel',
15 | '!app/*.json',
16 | '!app/*.html',
17 | ], {
18 | base: 'app',
19 | dot: true
20 | }).pipe(gulp.dest('dist'));
21 | });
22 |
23 | function lint(files, options) {
24 | return () => {
25 | return gulp.src(files)
26 | .pipe($.eslint(options))
27 | .pipe($.eslint.format());
28 | };
29 | }
30 |
31 | gulp.task('lint', lint('app/scripts.babel/**/*.js', {
32 | env: {
33 | es6: true
34 | }
35 | }));
36 |
37 | gulp.task('images', () => {
38 | return gulp.src('app/images/**/*')
39 | .pipe($.if($.if.isFile, $.cache($.imagemin({
40 | progressive: true,
41 | interlaced: true,
42 | // don't remove IDs from SVGs, they are often used
43 | // as hooks for embedding and styling
44 | svgoPlugins: [{cleanupIDs: false}]
45 | }))
46 | .on('error', function (err) {
47 | console.log(err);
48 | this.end();
49 | })))
50 | .pipe(gulp.dest('dist/images'));
51 | });
52 |
53 | gulp.task('html', () => {
54 | return gulp.src('app/*.html')
55 | .pipe($.useref({searchPath: ['.tmp', 'app', '.']}))
56 | .pipe($.sourcemaps.init())
57 | // .pipe($.if('*.js', $.uglify()))
58 | .pipe($.if('*.css', $.cleanCss({compatibility: '*'})))
59 | .pipe($.sourcemaps.write())
60 | .pipe($.if('*.html', $.htmlmin({removeComments: true, collapseWhitespace: true})))
61 | .pipe(gulp.dest('dist'));
62 | });
63 |
64 | gulp.task('chromeManifest', () => {
65 | return gulp.src('app/manifest.json')
66 | .pipe($.chromeManifest({
67 | buildnumber: true,
68 | background: {
69 | target: 'scripts/background.js',
70 | exclude: [
71 | 'scripts/chromereload.js'
72 | ]
73 | }
74 | }))
75 | .pipe($.if('*.css', $.cleanCss({compatibility: '*'})))
76 | .pipe($.if('*.js', $.sourcemaps.init()))
77 | // .pipe($.if('*.js', $.uglify()))
78 | .pipe($.if('*.js', $.sourcemaps.write('.')))
79 | .pipe(gulp.dest('dist'));
80 | });
81 |
82 | gulp.task('babel', () => {
83 | return gulp.src('app/scripts.babel/**/*.js')
84 | .pipe($.babel({
85 | presets: ['es2015']
86 | }))
87 | .pipe(gulp.dest('app/scripts'));
88 | });
89 |
90 | gulp.task('clean', del.bind(null, ['.tmp', 'dist']));
91 |
92 | gulp.task('watch', ['lint', 'babel'], () => {
93 | $.livereload.listen();
94 |
95 | gulp.watch([
96 | 'app/*.html',
97 | 'app/scripts/**/*.js',
98 | 'app/images/**/*',
99 | 'app/styles/**/*',
100 | 'app/_locales/**/*.json'
101 | ]).on('change', $.livereload.reload);
102 |
103 | gulp.watch('app/scripts.babel/**/*.js', ['lint', 'babel']);
104 | gulp.watch('bower.json', ['wiredep']);
105 | });
106 |
107 | gulp.task('size', () => {
108 | return gulp.src('dist/**/*').pipe($.size({title: 'build', gzip: true}));
109 | });
110 |
111 | gulp.task('wiredep', () => {
112 | gulp.src('app/*.html')
113 | .pipe(wiredep({
114 | ignorePath: /^(\.\.\/)*\.\./
115 | }))
116 | .pipe(gulp.dest('app'));
117 | });
118 |
119 | gulp.task('package', function () {
120 | var manifest = require('./dist/manifest.json');
121 | return gulp.src('dist/**')
122 | .pipe($.zip('source detector-' + manifest.version + '.zip'))
123 | .pipe(gulp.dest('package'));
124 | });
125 |
126 | gulp.task('build', (cb) => {
127 | runSequence(
128 | 'lint', 'babel', 'chromeManifest',
129 | ['html', 'images', 'extras'],
130 | 'size', cb);
131 | });
132 |
133 | gulp.task('default', ['clean'], cb => {
134 | runSequence('build', cb);
135 | });
136 |
--------------------------------------------------------------------------------
/app/scripts/popup.js:
--------------------------------------------------------------------------------
1 | 'use strict';
2 |
3 | var port = chrome.extension.connect({
4 | name: 'Communication to BackGround'
5 | });
6 |
7 | port.postMessage('getAllSourceFiles');
8 | port.onMessage.addListener(function (list) {
9 | contentMap = list.reduce(function (map, item) {
10 | map[item.url] = item.content;
11 | return map;
12 | }, {});
13 |
14 | renderDOM(renderGroups(list), document.getElementById("app"));
15 | });
16 |
17 | var contentMap = {};
18 | var renderGroups = function renderGroups(list) {
19 | var group = _.groupBy(list, function (file) {
20 | return file.page.url;
21 | });
22 |
23 | return createVDOM(
24 | 'div',
25 | { className: 'panel' },
26 | createVDOM(
27 | 'p',
28 | { className: 'actions' },
29 | createVDOM(
30 | 'a',
31 | { href: '#', onclick: downloadAll },
32 | 'Download All'
33 | )
34 | ),
35 | createVDOM(
36 | 'p',
37 | { className: 'content' },
38 | Object.keys(group).map(function (url) {
39 | return createVDOM(
40 | 'div',
41 | { className: 'group' },
42 | createVDOM(
43 | 'div',
44 | { className: 'title' },
45 | createVDOM(
46 | 'a',
47 | { href: group[url][0].page.url, target: '_blank' },
48 | group[url][0].page.title,
49 | '(',
50 | group[url][0].page.url,
51 | ')'
52 | )
53 | ),
54 | createVDOM(
55 | 'ul',
56 | null,
57 | group[url].map(function (file) {
58 | return createVDOM(
59 | 'li',
60 | null,
61 | createVDOM(
62 | 'div',
63 | null,
64 | createVDOM(
65 | 'a',
66 | { className: 'url', href: file.url, onclick: download },
67 | file.url
68 | )
69 | ),
70 | createVDOM(
71 | 'div',
72 | { className: 'fileSize' },
73 | fileSizeIEC(file.content.length)
74 | )
75 | );
76 | })
77 | )
78 | );
79 | })
80 | )
81 | );
82 | };
83 |
84 | var download = function download(e) {
85 | var filename = parseFileName(e.target.href);
86 | try {
87 | parseSourceMap(filename, contentMap[e.target.href]);
88 | } catch (e) {
89 | console.log(e);
90 | }
91 | };
92 |
93 | var downloadAll = function downloadAll(e) {
94 | var errors = [];
95 | Object.keys(contentMap).forEach(function (key) {
96 | var filename = parseFileName(key);
97 | try {
98 | parseSourceMap(filename, contentMap[key]);
99 | } catch (e) {
100 | errors.push(e);
101 | }
102 | });
103 |
104 | console.log(errors);
105 | };
106 |
107 | var parseFileName = function parseFileName(path) {
108 | var filename = path.split('/');
109 | return filename[filename.length - 1];
110 | };
111 |
112 | var parseSourceMap = function parseSourceMap(sourceMapFileName, rawSourceMap) {
113 | var SourceMapConsumer = sourceMap.SourceMapConsumer;
114 | var consumer = new SourceMapConsumer(rawSourceMap);
115 |
116 | if (consumer.hasContentsOfAllSources()) {
117 | var zip = new JSZip();
118 |
119 | var img = zip.folder('images');
120 | consumer.sources.forEach(function (fileName) {
121 | if (fileName.indexOf('webpack://') !== 0) {
122 | return;
123 | }
124 |
125 | var fileContent = consumer.sourceContentFor(fileName);
126 | fileName = fileName.replace(/^webpack:\/\//, '');
127 | fileName = fileName.replace(/^\//, '');
128 | fileName = fileName.replace(/^\~\//, 'node_modules/');
129 | addZipFile(zip, fileName, fileContent);
130 | });
131 |
132 | return zip.generateAsync({ type: 'blob' }).then(function (content) {
133 | var reader = new FileReader();
134 | reader.readAsDataURL(content);
135 | reader.onloadend = function () {
136 | chrome.downloads.download({ filename: sourceMapFileName + '.zip', url: reader.result });
137 | };
138 | });
139 | } else {
140 | console.log('TODO');
141 | }
142 | };
143 |
144 | var addZipFile = function addZipFile(root, filename, content) {
145 | var folders = filename.split('/');
146 | var folder = root;
147 | for (var i = 0; i < folders.length - 1; i++) {
148 | folder = folder.folder(folders[i]);
149 | }
150 |
151 | folder.file(folders[folders.length - 1], content);
152 | };
153 |
154 | function fileSizeIEC(a, b, c, d, e) {
155 | return (b = Math, c = b.log, d = 1024, e = c(a) / c(d) | 0, a / b.pow(d, e)).toFixed(2) + ' ' + (e ? 'KMGTPEZY'[--e] + 'B' : 'Bytes');
156 | }
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | SourceDetector是一个自动发现.map文件，并帮你下载到本地的一个chrome extension。
2 | # 使用
3 | 下载SourceDetector.zip
4 | 直接开发者模式加载即可。
5 |
6 |
7 | ---
8 |
9 | # 缘起
10 |
11 | 此前我在回答[这个问题](https://www.zhihu.com/question/56236151/answer/149122097)的时候提到，“我偶然间获得了知乎的源码”。本文将解释我是如何“偶然获取”的。另外本repo即是由此而生的一个chrome extension。
12 |
13 | # Source Map
14 |
15 | 前端工程化的一个重要部分就是就是源码转换，一方面压缩体积，另一方面合并文件。当然还有可能是为了转换Typescript、ES6+或其他代码。但通常转换完的代码难以阅读和调试。Source Map就是为了解决这个问题而出现的。
16 |
17 | 关于Source Map的详细信息，推荐阮一峰的这篇文章-[JavaScript Source Map 详解](http://www.ruanyifeng.com/blog/2013/01/javascript_source_map.html)。
18 |
19 | # 故事
20 |
21 | 话说，某天我在逛知乎的时候习惯性的打开了Chrome Dev-tools，在Sources栏下竟然发现了一个`webpack://`目录。用过webpack source map的前端应该立刻就会反应过来-哇，有源码！于是我便如此“偶然获得”了文件`zfeedback.js.map`。
22 |
23 | 故事还没完。
24 |
25 | 事实上，我此时是可以直接查看各个源码文件的。只是如何将其保存到本地呢？我尝试点击右键，貌似并没有保存整个目录到本地的选项，看起来只能一个一个文件的保存，好累。
26 |
27 | 受好奇心驱使，我在github上搜了一圈，找到了一个开源项目-[mozilla/source-map](https://github.com/mozilla/source-map)。于是自己手动写了些代码便将整个目录下载到了本地。啊哈～
28 |
29 | 源码如下，可用`node app.js`执行。
30 |
31 | ```javascript
32 | // app.js
33 | const fs = require('fs-extra')
34 | const https = require('https')
35 | const crypto = require('crypto')
36 |
37 | const SourceMapConsumer = require('source-map').SourceMapConsumer
38 |
39 | const analyse = (srcMapURL) => {
40 | const BASE_CACHE_PATH = __dirname + '/cache/'
41 | const BASE_OUTPUT_PATH = __dirname + '/output/' + srcMapURL.substr(srcMapURL.lastIndexOf('/') + 1) + '/'
42 | const BASE_OUTPUT_LIB_PATH = BASE_OUTPUT_PATH + 'node_modules/'
43 |
44 | const md5 = (content) => {
45 | let md5Maker = crypto.createHash('md5');
46 | md5Maker.update(content);
47 | return md5Maker.digest('hex');
48 | }
49 |
50 | const download = (url, callback) => {
51 | const hash = md5(url)
52 | const cacheFileName = BASE_CACHE_PATH + hash
53 | if (fs.existsSync(cacheFileName)) {
54 | fs.readFile(cacheFileName, 'utf8', (err, data) => {
55 | console.log("From cache")
56 | callback(data)
57 | })
58 | } else {
59 | return https.get(url, function(response) {
60 | let body = '';
61 |
62 | let totalSize = parseInt(response.headers['content-length'])
63 |
64 | response.on('data', function(d) {
65 | body += d
66 | printDownloading(body, totalSize)
67 | });
68 |
69 | response.on('end', function() {
70 | printFinishDownload(body)
71 | fs.outputFile(cacheFileName, body, error => {
72 | callback(body)
73 | })
74 | });
75 | });
76 | }
77 | }
78 |
79 | const printDownloading = (body, totalSize) => {
80 | let statusLine = '\r'
81 | statusLine += 'Downloading '
82 | statusLine += srcMapURL.substr(srcMapURL.lastIndexOf('/') + 1)
83 | statusLine += ' '
84 | statusLine += (body.length / totalSize * 100).toFixed(2)
85 | statusLine += '%'
86 | process.stdout.write(statusLine)
87 | }
88 |
89 | const printFinishDownload = (body) => {
90 | let statusLine = 'Finish Download '
91 | statusLine += srcMapURL.substr(srcMapURL.lastIndexOf('/') + 1)
92 | statusLine += ' total size: '
93 | statusLine += body.length
94 | statusLine += 'bytes'
95 | console.log('\n' + statusLine)
96 | }
97 |
98 | download(srcMapURL, (rawSourceMap) => {
99 | try {
100 | const consumer = new SourceMapConsumer(rawSourceMap);
101 |
102 | if (consumer.hasContentsOfAllSources()) {
103 | consumer.sources.forEach(fileName => {
104 | if (fileName.indexOf('webpack://') !== 0) {
105 | return
106 | }
107 |
108 | let fileContent = consumer.sourceContentFor(fileName)
109 | fileName = fileName.replace(/^webpack:\/\//, '')
110 | fileName = fileName.replace(/^\//, BASE_OUTPUT_PATH)
111 | fileName = fileName.replace(/^.*\/\~\//, BASE_OUTPUT_LIB_PATH)
112 | fs.outputFile(fileName, fileContent, error => {
113 | // console.log(error) // TODO, debug code, to delete before commit
114 | })
115 | })
116 |
117 | console.log('Please check here for sources: ', BASE_OUTPUT_PATH)
118 | } else {
119 | console.log('TODO')
120 | }
121 | } catch (e) {
122 | console.log("Failed to parse", srcMapURL) // TODO, debug code, to delete before commit
123 | }
124 | })
125 | }
126 |
127 | let jsURLs = `
128 | https://zhstatic.zhihu.com/assets/zfeedback/3.0.13/zfeedback.js
129 | `
130 |
131 | jsURLs.split('\n').filter(Boolean).forEach(jsURL => {
132 | const srcMapURL = jsURL + '.map'
133 | analyse(srcMapURL)
134 | })
135 | ```
136 |
137 | 之后的故事是，我将分析源码的过程写到了[这个回答](https://www.zhihu.com/question/56236151/answer/149122097)。之后知乎某员工询问我如何获取的源码，建议我与知乎开发及安全团队取得联系，我解释了该过程，然后知乎修复了问题。
138 |
139 | # 事后
140 |
141 | 不过依然不过瘾。这样只能是当我有了某个.map文件时可以解析出源文件。如果能有一个工具随时提醒我，我访问的某个网站有源码，并帮我下载下来就更完美了。于是便有了这个[Chrome extension](https://github.com/SunHuawei/SourceDetector)。
142 |
143 | # 安装
144 |
145 | ## Chrome web store
146 | 安装地址[https://chrome.google.com/webstore/detail/source-detecotor/aioimldmpakibclgckpdfpfkadbflfkn?hl=zh-CN&gl=CN](https://chrome.google.com/webstore/detail/source-detecotor/aioimldmpakibclgckpdfpfkadbflfkn?hl=zh-CN&gl=CN)
147 |
148 | ## 源码安装
149 |
150 | 1. `git clone https://github.com/SunHuawei/SourceDetector.git`
151 | 2. `npm install`
152 | 2. `bower install`
153 | 1. `gulp`
154 | 3. 打开Chrome设置-扩展程序
155 | 4. 点击"加载已解压的扩展程序..."
156 | 5. 选择`path/to/source-detector/dist`目录
157 |
158 | 24 | Download All 25 |
26 |27 | { 28 | Object.keys(group).map(url => ( 29 |
30 |
35 |
46 | ))
47 | }
48 |
49 | -
36 | {
37 | group[url].map(file => (
38 |
-
39 |
40 | {fileSizeIEC(file.content.length)}41 |
42 | ))
43 | }
44 |
159 |
160 | 之后你在浏览任何网页时，该插件将自动检测是否有.map文件。其会自动按网站分组显示源码文件，并可点击下载全部或部分源码文件。
161 |
162 | 
163 |
164 | 进入[webpack首页](https://webpack.js.org/)，查看右上角的小图标吧～
165 |
166 | # 有问题？有建议？
167 |
168 | 欢迎说出你的想法。欢迎issue和PR。
169 |
--------------------------------------------------------------------------------
/dist/scripts/background.js.map:
--------------------------------------------------------------------------------
1 | {"version":3,"names":[],"mappings":"","sources":["scripts/background.js"],"sourcesContent":["(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"sourceMap\"] = factory();\n\telse\n\t\troot[\"sourceMap\"] = factory();\n})(this, function() {\nreturn /******/ (function(modules) { // webpackBootstrap\n/******/ \t// The module cache\n/******/ \tvar installedModules = {};\n\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(installedModules[moduleId])\n/******/ \t\t\treturn installedModules[moduleId].exports;\n\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = installedModules[moduleId] = {\n/******/ \t\t\texports: {},\n/******/ \t\t\tid: moduleId,\n/******/ \t\t\tloaded: false\n/******/ \t\t};\n\n/******/ \t\t// Execute the module function\n/******/ \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n/******/ \t\t// Flag the module as loaded\n/******/ \t\tmodule.loaded = true;\n\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n\n\n/******/ \t// expose the modules object (__webpack_modules__)\n/******/ \t__webpack_require__.m = modules;\n\n/******/ \t// expose the module cache\n/******/ \t__webpack_require__.c = installedModules;\n\n/******/ \t// __webpack_public_path__\n/******/ \t__webpack_require__.p = \"\";\n\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(0);\n/******/ })\n/************************************************************************/\n/******/ ([\n/* 0 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/*\n\t * Copyright 2009-2011 Mozilla Foundation and contributors\n\t * Licensed under the New BSD license. See LICENSE.txt or:\n\t * http://opensource.org/licenses/BSD-3-Clause\n\t */\n\texports.SourceMapGenerator = __webpack_require__(1).SourceMapGenerator;\n\texports.SourceMapConsumer = __webpack_require__(7).SourceMapConsumer;\n\texports.SourceNode = __webpack_require__(10).SourceNode;\n\n\n/***/ },\n/* 1 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* -*- Mode: js; js-indent-level: 2; -*- */\n\t/*\n\t * Copyright 2011 Mozilla Foundation and contributors\n\t * Licensed under the New BSD license. See LICENSE or:\n\t * http://opensource.org/licenses/BSD-3-Clause\n\t */\n\n\tvar base64VLQ = __webpack_require__(2);\n\tvar util = __webpack_require__(4);\n\tvar ArraySet = __webpack_require__(5).ArraySet;\n\tvar MappingList = __webpack_require__(6).MappingList;\n\n\t/**\n\t * An instance of the SourceMapGenerator represents a source map which is\n\t * being built incrementally. You may pass an object with the following\n\t * properties:\n\t *\n\t * - file: The filename of the generated source.\n\t * - sourceRoot: A root for all relative URLs in this source map.\n\t */\n\tfunction SourceMapGenerator(aArgs) {\n\t if (!aArgs) {\n\t aArgs = {};\n\t }\n\t this._file = util.getArg(aArgs, 'file', null);\n\t this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);\n\t this._skipValidation = util.getArg(aArgs, 'skipValidation', false);\n\t this._sources = new ArraySet();\n\t this._names = new ArraySet();\n\t this._mappings = new MappingList();\n\t this._sourcesContents = null;\n\t}\n\n\tSourceMapGenerator.prototype._version = 3;\n\n\t/**\n\t * Creates a new SourceMapGenerator based on a SourceMapConsumer\n\t *\n\t * @param aSourceMapConsumer The SourceMap.\n\t */\n\tSourceMapGenerator.fromSourceMap =\n\t function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {\n\t var sourceRoot = aSourceMapConsumer.sourceRoot;\n\t var generator = new SourceMapGenerator({\n\t file: aSourceMapConsumer.file,\n\t sourceRoot: sourceRoot\n\t });\n\t aSourceMapConsumer.eachMapping(function (mapping) {\n\t var newMapping = {\n\t generated: {\n\t line: mapping.generatedLine,\n\t column: mapping.generatedColumn\n\t }\n\t };\n\n\t if (mapping.source != null) {\n\t newMapping.source = mapping.source;\n\t if (sourceRoot != null) {\n\t newMapping.source = util.relative(sourceRoot, newMapping.source);\n\t }\n\n\t newMapping.original = {\n\t line: mapping.originalLine,\n\t column: mapping.originalColumn\n\t };\n\n\t if (mapping.name != null) {\n\t newMapping.name = mapping.name;\n\t }\n\t }\n\n\t generator.addMapping(newMapping);\n\t });\n\t aSourceMapConsumer.sources.forEach(function (sourceFile) {\n\t var content = aSourceMapConsumer.sourceContentFor(sourceFile);\n\t if (content != null) {\n\t generator.setSourceContent(sourceFile, content);\n\t }\n\t });\n\t return generator;\n\t };\n\n\t/**\n\t * Add a single mapping from original source line and column to the generated\n\t * source's line and column for this source map being created. The mapping\n\t * object should have the following properties:\n\t *\n\t * - generated: An object with the generated line and column positions.\n\t * - original: An object with the original line and column positions.\n\t * - source: The original source file (relative to the sourceRoot).\n\t * - name: An optional original token name for this mapping.\n\t */\n\tSourceMapGenerator.prototype.addMapping =\n\t function SourceMapGenerator_addMapping(aArgs) {\n\t var generated = util.getArg(aArgs, 'generated');\n\t var original = util.getArg(aArgs, 'original', null);\n\t var source = util.getArg(aArgs, 'source', null);\n\t var name = util.getArg(aArgs, 'name', null);\n\n\t if (!this._skipValidation) {\n\t this._validateMapping(generated, original, source, name);\n\t }\n\n\t if (source != null) {\n\t source = String(source);\n\t if (!this._sources.has(source)) {\n\t this._sources.add(source);\n\t }\n\t }\n\n\t if (name != null) {\n\t name = String(name);\n\t if (!this._names.has(name)) {\n\t this._names.add(name);\n\t }\n\t }\n\n\t this._mappings.add({\n\t generatedLine: generated.line,\n\t generatedColumn: generated.column,\n\t originalLine: original != null && original.line,\n\t originalColumn: original != null && original.column,\n\t source: source,\n\t name: name\n\t });\n\t };\n\n\t/**\n\t * Set the source content for a source file.\n\t */\n\tSourceMapGenerator.prototype.setSourceContent =\n\t function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {\n\t var source = aSourceFile;\n\t if (this._sourceRoot != null) {\n\t source = util.relative(this._sourceRoot, source);\n\t }\n\n\t if (aSourceContent != null) {\n\t // Add the source content to the _sourcesContents map.\n\t // Create a new _sourcesContents map if the property is null.\n\t if (!this._sourcesContents) {\n\t this._sourcesContents = Object.create(null);\n\t }\n\t this._sourcesContents[util.toSetString(source)] = aSourceContent;\n\t } else if (this._sourcesContents) {\n\t // Remove the source file from the _sourcesContents map.\n\t // If the _sourcesContents map is empty, set the property to null.\n\t delete this._sourcesContents[util.toSetString(source)];\n\t if (Object.keys(this._sourcesContents).length === 0) {\n\t this._sourcesContents = null;\n\t }\n\t }\n\t };\n\n\t/**\n\t * Applies the mappings of a sub-source-map for a specific source file to the\n\t * source map being generated. Each mapping to the supplied source file is\n\t * rewritten using the supplied source map. Note: The resolution for the\n\t * resulting mappings is the minimium of this map and the supplied map.\n\t *\n\t * @param aSourceMapConsumer The source map to be applied.\n\t * @param aSourceFile Optional. The filename of the source file.\n\t * If omitted, SourceMapConsumer's file property will be used.\n\t * @param aSourceMapPath Optional. The dirname of the path to the source map\n\t * to be applied. If relative, it is relative to the SourceMapConsumer.\n\t * This parameter is needed when the two source maps aren't in the same\n\t * directory, and the source map to be applied contains relative source\n\t * paths. If so, those relative source paths need to be rewritten\n\t * relative to the SourceMapGenerator.\n\t */\n\tSourceMapGenerator.prototype.applySourceMap =\n\t function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {\n\t var sourceFile = aSourceFile;\n\t // If aSourceFile is omitted, we will use the file property of the SourceMap\n\t if (aSourceFile == null) {\n\t if (aSourceMapConsumer.file == null) {\n\t throw new Error(\n\t 'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +\n\t 'or the source map\\'s \"file\" property. Both were omitted.'\n\t );\n\t }\n\t sourceFile = aSourceMapConsumer.file;\n\t }\n\t var sourceRoot = this._sourceRoot;\n\t // Make \"sourceFile\" relative if an absolute Url is passed.\n\t if (sourceRoot != null) {\n\t sourceFile = util.relative(sourceRoot, sourceFile);\n\t }\n\t // Applying the SourceMap can add and remove items from the sources and\n\t // the names array.\n\t var newSources = new ArraySet();\n\t var newNames = new ArraySet();\n\n\t // Find mappings for the \"sourceFile\"\n\t this._mappings.unsortedForEach(function (mapping) {\n\t if (mapping.source === sourceFile && mapping.originalLine != null) {\n\t // Check if it can be mapped by the source map, then update the mapping.\n\t var original = aSourceMapConsumer.originalPositionFor({\n\t line: mapping.originalLine,\n\t column: mapping.originalColumn\n\t });\n\t if (original.source != null) {\n\t // Copy mapping\n\t mapping.source = original.source;\n\t if (aSourceMapPath != null) {\n\t mapping.source = util.join(aSourceMapPath, mapping.source)\n\t }\n\t if (sourceRoot != null) {\n\t mapping.source = util.relative(sourceRoot, mapping.source);\n\t }\n\t mapping.originalLine = original.line;\n\t mapping.originalColumn = original.column;\n\t if (original.name != null) {\n\t mapping.name = original.name;\n\t }\n\t }\n\t }\n\n\t var source = mapping.source;\n\t if (source != null && !newSources.has(source)) {\n\t newSources.add(source);\n\t }\n\n\t var name = mapping.name;\n\t if (name != null && !newNames.has(name)) {\n\t newNames.add(name);\n\t }\n\n\t }, this);\n\t this._sources = newSources;\n\t this._names = newNames;\n\n\t // Copy sourcesContents of applied map.\n\t aSourceMapConsumer.sources.forEach(function (sourceFile) {\n\t var content = aSourceMapConsumer.sourceContentFor(sourceFile);\n\t if (content != null) {\n\t if (aSourceMapPath != null) {\n\t sourceFile = util.join(aSourceMapPath, sourceFile);\n\t }\n\t if (sourceRoot != null) {\n\t sourceFile = util.relative(sourceRoot, sourceFile);\n\t }\n\t this.setSourceContent(sourceFile, content);\n\t }\n\t }, this);\n\t };\n\n\t/**\n\t * A mapping can have one of the three levels of data:\n\t *\n\t * 1. Just the generated position.\n\t * 2. The Generated position, original position, and original source.\n\t * 3. Generated and original position, original source, as well as a name\n\t * token.\n\t *\n\t * To maintain consistency, we validate that any new mapping being added falls\n\t * in to one of these categories.\n\t */\n\tSourceMapGenerator.prototype._validateMapping =\n\t function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,\n\t aName) {\n\t if (aGenerated && 'line' in aGenerated && 'column' in aGenerated\n\t && aGenerated.line > 0 && aGenerated.column >= 0\n\t && !aOriginal && !aSource && !aName) {\n\t // Case 1.\n\t return;\n\t }\n\t else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated\n\t && aOriginal && 'line' in aOriginal && 'column' in aOriginal\n\t && aGenerated.line > 0 && aGenerated.column >= 0\n\t && aOriginal.line > 0 && aOriginal.column >= 0\n\t && aSource) {\n\t // Cases 2 and 3.\n\t return;\n\t }\n\t else {\n\t throw new Error('Invalid mapping: ' + JSON.stringify({\n\t generated: aGenerated,\n\t source: aSource,\n\t original: aOriginal,\n\t name: aName\n\t }));\n\t }\n\t };\n\n\t/**\n\t * Serialize the accumulated mappings in to the stream of base 64 VLQs\n\t * specified by the source map format.\n\t */\n\tSourceMapGenerator.prototype._serializeMappings =\n\t function SourceMapGenerator_serializeMappings() {\n\t var previousGeneratedColumn = 0;\n\t var previousGeneratedLine = 1;\n\t var previousOriginalColumn = 0;\n\t var previousOriginalLine = 0;\n\t var previousName = 0;\n\t var previousSource = 0;\n\t var result = '';\n\t var next;\n\t var mapping;\n\t var nameIdx;\n\t var sourceIdx;\n\n\t var mappings = this._mappings.toArray();\n\t for (var i = 0, len = mappings.length; i < len; i++) {\n\t mapping = mappings[i];\n\t next = ''\n\n\t if (mapping.generatedLine !== previousGeneratedLine) {\n\t previousGeneratedColumn = 0;\n\t while (mapping.generatedLine !== previousGeneratedLine) {\n\t next += ';';\n\t previousGeneratedLine++;\n\t }\n\t }\n\t else {\n\t if (i > 0) {\n\t if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {\n\t continue;\n\t }\n\t next += ',';\n\t }\n\t }\n\n\t next += base64VLQ.encode(mapping.generatedColumn\n\t - previousGeneratedColumn);\n\t previousGeneratedColumn = mapping.generatedColumn;\n\n\t if (mapping.source != null) {\n\t sourceIdx = this._sources.indexOf(mapping.source);\n\t next += base64VLQ.encode(sourceIdx - previousSource);\n\t previousSource = sourceIdx;\n\n\t // lines are stored 0-based in SourceMap spec version 3\n\t next += base64VLQ.encode(mapping.originalLine - 1\n\t - previousOriginalLine);\n\t previousOriginalLine = mapping.originalLine - 1;\n\n\t next += base64VLQ.encode(mapping.originalColumn\n\t - previousOriginalColumn);\n\t previousOriginalColumn = mapping.originalColumn;\n\n\t if (mapping.name != null) {\n\t nameIdx = this._names.indexOf(mapping.name);\n\t next += base64VLQ.encode(nameIdx - previousName);\n\t previousName = nameIdx;\n\t }\n\t }\n\n\t result += next;\n\t }\n\n\t return result;\n\t };\n\n\tSourceMapGenerator.prototype._generateSourcesContent =\n\t function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {\n\t return aSources.map(function (source) {\n\t if (!this._sourcesContents) {\n\t return null;\n\t }\n\t if (aSourceRoot != null) {\n\t source = util.relative(aSourceRoot, source);\n\t }\n\t var key = util.toSetString(source);\n\t return Object.prototype.hasOwnProperty.call(this._sourcesContents, key)\n\t ? this._sourcesContents[key]\n\t : null;\n\t }, this);\n\t };\n\n\t/**\n\t * Externalize the source map.\n\t */\n\tSourceMapGenerator.prototype.toJSON =\n\t function SourceMapGenerator_toJSON() {\n\t var map = {\n\t version: this._version,\n\t sources: this._sources.toArray(),\n\t names: this._names.toArray(),\n\t mappings: this._serializeMappings()\n\t };\n\t if (this._file != null) {\n\t map.file = this._file;\n\t }\n\t if (this._sourceRoot != null) {\n\t map.sourceRoot = this._sourceRoot;\n\t }\n\t if (this._sourcesContents) {\n\t map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);\n\t }\n\n\t return map;\n\t };\n\n\t/**\n\t * Render the source map being generated to a string.\n\t */\n\tSourceMapGenerator.prototype.toString =\n\t function SourceMapGenerator_toString() {\n\t return JSON.stringify(this.toJSON());\n\t };\n\n\texports.SourceMapGenerator = SourceMapGenerator;\n\n\n/***/ },\n/* 2 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* -*- Mode: js; js-indent-level: 2; -*- */\n\t/*\n\t * Copyright 2011 Mozilla Foundation and contributors\n\t * Licensed under the New BSD license. See LICENSE or:\n\t * http://opensource.org/licenses/BSD-3-Clause\n\t *\n\t * Based on the Base 64 VLQ implementation in Closure Compiler:\n\t * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java\n\t *\n\t * Copyright 2011 The Closure Compiler Authors. All rights reserved.\n\t * Redistribution and use in source and binary forms, with or without\n\t * modification, are permitted provided that the following conditions are\n\t * met:\n\t *\n\t * * Redistributions of source code must retain the above copyright\n\t * notice, this list of conditions and the following disclaimer.\n\t * * Redistributions in binary form must reproduce the above\n\t * copyright notice, this list of conditions and the following\n\t * disclaimer in the documentation and/or other materials provided\n\t * with the distribution.\n\t * * Neither the name of Google Inc. nor the names of its\n\t * contributors may be used to endorse or promote products derived\n\t * from this software without specific prior written permission.\n\t *\n\t * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n\t * \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n\t * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n\t * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n\t * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n\t * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n\t * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n\t * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n\t * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n\t * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n\t * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\t */\n\n\tvar base64 = __webpack_require__(3);\n\n\t// A single base 64 digit can contain 6 bits of data. For the base 64 variable\n\t// length quantities we use in the source map spec, the first bit is the sign,\n\t// the next four bits are the actual value, and the 6th bit is the\n\t// continuation bit. The continuation bit tells us whether there are more\n\t// digits in this value following this digit.\n\t//\n\t// Continuation\n\t// | Sign\n\t// | |\n\t// V V\n\t// 101011\n\n\tvar VLQ_BASE_SHIFT = 5;\n\n\t// binary: 100000\n\tvar VLQ_BASE = 1 << VLQ_BASE_SHIFT;\n\n\t// binary: 011111\n\tvar VLQ_BASE_MASK = VLQ_BASE - 1;\n\n\t// binary: 100000\n\tvar VLQ_CONTINUATION_BIT = VLQ_BASE;\n\n\t/**\n\t * Converts from a two-complement value to a value where the sign bit is\n\t * placed in the least significant bit. For example, as decimals:\n\t * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary)\n\t * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary)\n\t */\n\tfunction toVLQSigned(aValue) {\n\t return aValue < 0\n\t ? ((-aValue) << 1) + 1\n\t : (aValue << 1) + 0;\n\t}\n\n\t/**\n\t * Converts to a two-complement value from a value where the sign bit is\n\t * placed in the least significant bit. For example, as decimals:\n\t * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1\n\t * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2\n\t */\n\tfunction fromVLQSigned(aValue) {\n\t var isNegative = (aValue & 1) === 1;\n\t var shifted = aValue >> 1;\n\t return isNegative\n\t ? -shifted\n\t : shifted;\n\t}\n\n\t/**\n\t * Returns the base 64 VLQ encoded value.\n\t */\n\texports.encode = function base64VLQ_encode(aValue) {\n\t var encoded = \"\";\n\t var digit;\n\n\t var vlq = toVLQSigned(aValue);\n\n\t do {\n\t digit = vlq & VLQ_BASE_MASK;\n\t vlq >>>= VLQ_BASE_SHIFT;\n\t if (vlq > 0) {\n\t // There are still more digits in this value, so we must make sure the\n\t // continuation bit is marked.\n\t digit |= VLQ_CONTINUATION_BIT;\n\t }\n\t encoded += base64.encode(digit);\n\t } while (vlq > 0);\n\n\t return encoded;\n\t};\n\n\t/**\n\t * Decodes the next base 64 VLQ value from the given string and returns the\n\t * value and the rest of the string via the out parameter.\n\t */\n\texports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {\n\t var strLen = aStr.length;\n\t var result = 0;\n\t var shift = 0;\n\t var continuation, digit;\n\n\t do {\n\t if (aIndex >= strLen) {\n\t throw new Error(\"Expected more digits in base 64 VLQ value.\");\n\t }\n\n\t digit = base64.decode(aStr.charCodeAt(aIndex++));\n\t if (digit === -1) {\n\t throw new Error(\"Invalid base64 digit: \" + aStr.charAt(aIndex - 1));\n\t }\n\n\t continuation = !!(digit & VLQ_CONTINUATION_BIT);\n\t digit &= VLQ_BASE_MASK;\n\t result = result + (digit << shift);\n\t shift += VLQ_BASE_SHIFT;\n\t } while (continuation);\n\n\t aOutParam.value = fromVLQSigned(result);\n\t aOutParam.rest = aIndex;\n\t};\n\n\n/***/ },\n/* 3 */\n/***/ function(module, exports) {\n\n\t/* -*- Mode: js; js-indent-level: 2; -*- */\n\t/*\n\t * Copyright 2011 Mozilla Foundation and contributors\n\t * Licensed under the New BSD license. See LICENSE or:\n\t * http://opensource.org/licenses/BSD-3-Clause\n\t */\n\n\tvar intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');\n\n\t/**\n\t * Encode an integer in the range of 0 to 63 to a single base 64 digit.\n\t */\n\texports.encode = function (number) {\n\t if (0 <= number && number < intToCharMap.length) {\n\t return intToCharMap[number];\n\t }\n\t throw new TypeError(\"Must be between 0 and 63: \" + number);\n\t};\n\n\t/**\n\t * Decode a single base 64 character code digit to an integer. Returns -1 on\n\t * failure.\n\t */\n\texports.decode = function (charCode) {\n\t var bigA = 65; // 'A'\n\t var bigZ = 90; // 'Z'\n\n\t var littleA = 97; // 'a'\n\t var littleZ = 122; // 'z'\n\n\t var zero = 48; // '0'\n\t var nine = 57; // '9'\n\n\t var plus = 43; // '+'\n\t var slash = 47; // '/'\n\n\t var littleOffset = 26;\n\t var numberOffset = 52;\n\n\t // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ\n\t if (bigA <= charCode && charCode <= bigZ) {\n\t return (charCode - bigA);\n\t }\n\n\t // 26 - 51: abcdefghijklmnopqrstuvwxyz\n\t if (littleA <= charCode && charCode <= littleZ) {\n\t return (charCode - littleA + littleOffset);\n\t }\n\n\t // 52 - 61: 0123456789\n\t if (zero <= charCode && charCode <= nine) {\n\t return (charCode - zero + numberOffset);\n\t }\n\n\t // 62: +\n\t if (charCode == plus) {\n\t return 62;\n\t }\n\n\t // 63: /\n\t if (charCode == slash) {\n\t return 63;\n\t }\n\n\t // Invalid base64 digit.\n\t return -1;\n\t};\n\n\n/***/ },\n/* 4 */\n/***/ function(module, exports) {\n\n\t/* -*- Mode: js; js-indent-level: 2; -*- */\n\t/*\n\t * Copyright 2011 Mozilla Foundation and contributors\n\t * Licensed under the New BSD license. See LICENSE or:\n\t * http://opensource.org/licenses/BSD-3-Clause\n\t */\n\n\t/**\n\t * This is a helper function for getting values from parameter/options\n\t * objects.\n\t *\n\t * @param args The object we are extracting values from\n\t * @param name The name of the property we are getting.\n\t * @param defaultValue An optional value to return if the property is missing\n\t * from the object. If this is not specified and the property is missing, an\n\t * error will be thrown.\n\t */\n\tfunction getArg(aArgs, aName, aDefaultValue) {\n\t if (aName in aArgs) {\n\t return aArgs[aName];\n\t } else if (arguments.length === 3) {\n\t return aDefaultValue;\n\t } else {\n\t throw new Error('\"' + aName + '\" is a required argument.');\n\t }\n\t}\n\texports.getArg = getArg;\n\n\tvar urlRegexp = /^(?:([\\w+\\-.]+):)?\\/\\/(?:(\\w+:\\w+)@)?([\\w.]*)(?::(\\d+))?(\\S*)$/;\n\tvar dataUrlRegexp = /^data:.+\\,.+$/;\n\n\tfunction urlParse(aUrl) {\n\t var match = aUrl.match(urlRegexp);\n\t if (!match) {\n\t return null;\n\t }\n\t return {\n\t scheme: match[1],\n\t auth: match[2],\n\t host: match[3],\n\t port: match[4],\n\t path: match[5]\n\t };\n\t}\n\texports.urlParse = urlParse;\n\n\tfunction urlGenerate(aParsedUrl) {\n\t var url = '';\n\t if (aParsedUrl.scheme) {\n\t url += aParsedUrl.scheme + ':';\n\t }\n\t url += '//';\n\t if (aParsedUrl.auth) {\n\t url += aParsedUrl.auth + '@';\n\t }\n\t if (aParsedUrl.host) {\n\t url += aParsedUrl.host;\n\t }\n\t if (aParsedUrl.port) {\n\t url += \":\" + aParsedUrl.port\n\t }\n\t if (aParsedUrl.path) {\n\t url += aParsedUrl.path;\n\t }\n\t return url;\n\t}\n\texports.urlGenerate = urlGenerate;\n\n\t/**\n\t * Normalizes a path, or the path portion of a URL:\n\t *\n\t * - Replaces consequtive slashes with one slash.\n\t * - Removes unnecessary '.' parts.\n\t * - Removes unnecessary '