diff --git a/background_scripts/bootstrap.js b/background_scripts/bootstrap.js index 5b9364d..4cd2277 100644 --- a/background_scripts/bootstrap.js +++ b/background_scripts/bootstrap.js @@ -1,22 +1,82 @@ /*jslint es6: true*/ -/*global chrome*/ +/*global chrome, browser, window, URI*/ (function () { - "use strict"; - const onMsgHandler = function (request, ignore, sendResponse) { + const {packingLib, standards, storageLib} = window.WEB_API_MANAGER; + const rootObject = window.browser || window.chrome; - let requestingDoman = request.domain; + // Once loaded from storage, will be a mapping from regular expressions + // (or the default option, "(default)"), to an array of standards + // that should be blocked on matching domains. + let domainRules; - if (request.request !== "rules") { - sendResponse(null); - return false; + storageLib.get(function (loadedDomainRules) { + domainRules = loadedDomainRules; + }); + + rootObject.runtime.onMessage.addListener(function (request, sender, tab) { + const [label, data] = request; + // Listen for updates to the domain rules from the config page. + if (label === "rulesUpdate") { + domainRules = data; } + }); - sendResponse({ - rules: ["fetch"] - }); - return false; + const extractHostFromUrl = function (url) { + const uri = URI(url); + return uri.hostname(); }; - chrome.runtime.onMessage.addListener(onMsgHandler); + const matchingUrlReduceFunction = function (domain, prev, next) { + if (prev) { + return prev; + } + + const domainRegex = new RegExp(next); + if (domainRegex.test(domain)) { + return next; + } + + return prev; + }; + + + const requestFilter = { + urls: [""], + types: ["main_frame", "sub_frame"] + }; + const requestOptions = ["blocking", "responseHeaders"]; + + + + + chrome.webRequest.onHeadersReceived.addListener(function (details) { + + const url = details.url; + const hostName = extractHostFromUrl(url); + const defaultKey = "(default)"; + + // Decide which set of blocking rules to use, depending on the host + // of the URL being requested. + const matchingUrlReduceFunctionBound = matchingUrlReduceFunction.bind(undefined, hostName); + const matchingPattern = Object + .keys(domainRules) + .filter((aRule) => aRule !== defaultKey) + .sort() + .reduce(matchingUrlReduceFunctionBound, undefined); + + const standardsToBlock = domainRules[matchingPattern || defaultKey]; + + const options = Object.keys(standards); + const packedValues = packingLib.pack(options, standardsToBlock); + + details.responseHeaders.push({ + name: "Set-Cookie", + value: `web-api-manager=${packedValues}` + }); + + return { + responseHeaders: details.responseHeaders + }; + }, requestFilter, requestOptions); }()); \ No newline at end of file diff --git a/config/index.html b/config/index.html index 4c8553f..d73eac8 100644 --- a/config/index.html +++ b/config/index.html @@ -24,10 +24,10 @@ - + + - diff --git a/config/js/config.js b/config/js/config.js index fb885ec..79f694d 100644 --- a/config/js/config.js +++ b/config/js/config.js @@ -1,8 +1,9 @@ /*jslint es6: true*/ -/*global window, browser, Vue*/ +/*global window, browser, chrome, Vue*/ (function () { "use strict"; + const rootObject = (window.browser || window.chrome); const doc = window.document; const standards = window.WEB_API_MANAGER.standards; const defaultConservativeRules = window.WEB_API_MANAGER.defaults.conservative; @@ -30,7 +31,9 @@ }); const updateStoredSettings = function () { - storageLib.set(state.domainRules, function () {}); + storageLib.set(state.domainRules, function () { + rootObject.runtime.sendMessage(["rulesUpdate", state.domainRules]); + }); }; vm.$watch("selectedStandards", updateStoredSettings); diff --git a/content_scripts/src/instrument.js b/content_scripts/src/instrument.js index 26b905c..42d0db1 100644 --- a/content_scripts/src/instrument.js +++ b/content_scripts/src/instrument.js @@ -1,16 +1,24 @@ /*jslint es6: true, browser: true*/ -/*global chrome, window*/ +/*global chrome, window, Cookies*/ // This script file runs in the context of the extension, and mainly // exists to inject the proxy blocking code into content frames. (function () { "use strict"; - let script = document.createElement('script'); - let rootElm = document.head || document.documentElement; - let code = ` + const script = document.createElement('script'); + const rootElm = document.head || document.documentElement; + + const cookieKey = "web-api-manager"; + const {packingLib, standards} = window.WEB_API_MANAGER; + const options = Object.keys(standards); + const packedValues = Cookies.get(cookieKey); + const standardsToBlock = packingLib.unpack(options, packedValues); + Cookies.remove(cookieKey); + + const code = ` window.WEB_API_MANAGER_PAGE = { - standards: ${JSON.stringify(window.WEB_API_MANAGER.standards)}, - toBlock: ${JSON.stringify(window.WEB_API_MANAGER.defaults)}, + standards: ${JSON.stringify(standards)}, + toBlock: ${JSON.stringify(standardsToBlock)}, shouldLog: true }; ###-INJECTED-PROXY-BLOCKING-CODE-### diff --git a/gulpfile.js b/gulpfile.js index c41eacc..e05e551 100644 --- a/gulpfile.js +++ b/gulpfile.js @@ -3,6 +3,17 @@ const fs = require('fs'); gulp.task('default', function () { + const isLineAComment = function (aLine) { + const lineStartsWithComment = ( + aLine.indexOf("// ") === 0 || + aLine.indexOf("/*") === 0 || + aLine.indexOf(" */") === 0 || + aLine.indexOf(" * ") === 0 + ); + return lineStartsWithComment; + }; + + const builtScriptComment = "/** This file is automatically generated. **/\n"; const standardsDefDir = "data/standards"; // Build all the standards listings into a single features.js file. @@ -19,8 +30,7 @@ gulp.task('default', function () { return prev; }, {}); - let renderedStandardsModule = "/** This file is automatically generated by gulp. **/\n"; - renderedStandardsModule += `window.WEB_API_MANAGER.standards = ${JSON.stringify(combinedStandards)};`; + const renderedStandardsModule = builtScriptComment + `window.WEB_API_MANAGER.standards = ${JSON.stringify(combinedStandards)};`; fs.writeFileSync("content_scripts/dist/standards.js", renderedStandardsModule); @@ -29,14 +39,7 @@ gulp.task('default', function () { const stripCommentsFromSource = function (source) { const fileLines = source.split("\n"); - const linesWithoutComments = fileLines.filter(function (aLine) { - const lineStartsWithComment = ( - aLine.indexOf("// ") === 0 || - aLine.indexOf("/*") === 0 || - aLine.indexOf(" * ") === 0 - ); - return !lineStartsWithComment; - }); + const linesWithoutComments = fileLines.filter(aLine => !isLineAComment(aLine)); return linesWithoutComments.join("\n"); }; @@ -47,12 +50,14 @@ gulp.task('default', function () { proxyBlockSrcWOComments ); - fs.writeFileSync("content_scripts/dist/instrument.js", instrumentSrcWithProxyInjected); + fs.writeFileSync("content_scripts/dist/instrument.js", builtScriptComment + instrumentSrcWithProxyInjected); // Last, several content script files are just copied over, unmodified, // as script files to be injected. - const srcFilesToCopy = ["defaults.js", "init.js"]; + const srcFilesToCopy = ["defaults.js"]; srcFilesToCopy.forEach(function (aSrcPath) { - fs.copyFileSync("content_scripts/src/" + aSrcPath, "content_scripts/dist/" + aSrcPath); + const scriptSrc = fs.readFileSync("content_scripts/src/" + aSrcPath, "utf8"); + const scriptSrcWOComments = stripCommentsFromSource(scriptSrc); + fs.writeFileSync("content_scripts/dist/" + aSrcPath, builtScriptComment + scriptSrcWOComments); }); }); diff --git a/lib/URI.js b/lib/URI.js new file mode 100644 index 0000000..1c19495 --- /dev/null +++ b/lib/URI.js @@ -0,0 +1,117 @@ +/*! URI.js v1.19.0 http://medialize.github.io/URI.js/ */ +/* build contains: IPv6.js, punycode.js, SecondLevelDomains.js, URI.js */ +/* + URI.js - Mutating URLs + IPv6 Support + + Version: 1.19.0 + + Author: Rodney Rehm + Web: http://medialize.github.io/URI.js/ + + Licensed under + MIT License http://www.opensource.org/licenses/mit-license + + https://mths.be/punycode v1.4.0 by @mathias URI.js - Mutating URLs + Second Level Domain (SLD) Support + + Version: 1.19.0 + + Author: Rodney Rehm + Web: http://medialize.github.io/URI.js/ + + Licensed under + MIT License http://www.opensource.org/licenses/mit-license + + URI.js - Mutating URLs + + Version: 1.19.0 + + Author: Rodney Rehm + Web: http://medialize.github.io/URI.js/ + + Licensed under + MIT License http://www.opensource.org/licenses/mit-license + +*/ +(function(k,n){"object"===typeof module&&module.exports?module.exports=n():"function"===typeof define&&define.amd?define(n):k.IPv6=n(k)})(this,function(k){var 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J=g.protocol,K=g.port,L=g.hostname;g.protocol=function(a,b){if(a&&(a=a.replace(/:(\/\/)?$/,""),!a.match(c.protocol_expression)))throw new TypeError('Protocol "'+a+"\" contains characters other than [A-Z0-9.+-] or doesn't start with [A-Z]");return J.call(this,a,b)};g.scheme=g.protocol;g.port=function(a,b){if(this._parts.urn)return void 0===a?"":this;void 0!==a&&(0===a&& +(a=null),a&&(a+="",":"===a.charAt(0)&&(a=a.substring(1)),c.ensureValidPort(a)));return K.call(this,a,b)};g.hostname=function(a,b){if(this._parts.urn)return void 0===a?"":this;if(void 0!==a){var d={preventInvalidHostname:this._parts.preventInvalidHostname};if("/"!==c.parseHost(a,d))throw new TypeError('Hostname "'+a+'" contains characters other than [A-Z0-9.-]');a=d.hostname;this._parts.preventInvalidHostname&&c.ensureValidHostname(a,this._parts.protocol)}return L.call(this,a,b)};g.origin=function(a, +b){if(this._parts.urn)return void 0===a?"":this;if(void 0===a){var d=this.protocol();return this.authority()?(d?d+"://":"")+this.authority():""}d=c(a);this.protocol(d.protocol()).authority(d.authority()).build(!b);return this};g.host=function(a,b){if(this._parts.urn)return void 0===a?"":this;if(void 0===a)return this._parts.hostname?c.buildHost(this._parts):"";if("/"!==c.parseHost(a,this._parts))throw new TypeError('Hostname "'+a+'" contains characters other than [A-Z0-9.-]');this.build(!b);return this}; +g.authority=function(a,b){if(this._parts.urn)return void 0===a?"":this;if(void 0===a)return this._parts.hostname?c.buildAuthority(this._parts):"";if("/"!==c.parseAuthority(a,this._parts))throw new TypeError('Hostname "'+a+'" contains characters other than [A-Z0-9.-]');this.build(!b);return this};g.userinfo=function(a,b){if(this._parts.urn)return void 0===a?"":this;if(void 0===a){var d=c.buildUserinfo(this._parts);return d?d.substring(0,d.length-1):d}"@"!==a[a.length-1]&&(a+="@");c.parseUserinfo(a, +this._parts);this.build(!b);return this};g.resource=function(a,b){if(void 0===a)return this.path()+this.search()+this.hash();var d=c.parse(a);this._parts.path=d.path;this._parts.query=d.query;this._parts.fragment=d.fragment;this.build(!b);return this};g.subdomain=function(a,b){if(this._parts.urn)return void 0===a?"":this;if(void 0===a){if(!this._parts.hostname||this.is("IP"))return"";var d=this._parts.hostname.length-this.domain().length-1;return this._parts.hostname.substring(0,d)||""}d=this._parts.hostname.length- +this.domain().length;d=this._parts.hostname.substring(0,d);d=new RegExp("^"+m(d));a&&"."!==a.charAt(a.length-1)&&(a+=".");if(-1!==a.indexOf(":"))throw new TypeError("Domains cannot contain colons");a&&c.ensureValidHostname(a,this._parts.protocol);this._parts.hostname=this._parts.hostname.replace(d,a);this.build(!b);return this};g.domain=function(a,b){if(this._parts.urn)return void 0===a?"":this;"boolean"===typeof a&&(b=a,a=void 0);if(void 0===a){if(!this._parts.hostname||this.is("IP"))return"";var d= +this._parts.hostname.match(/\./g);if(d&&2>d.length)return this._parts.hostname;d=this._parts.hostname.length-this.tld(b).length-1;d=this._parts.hostname.lastIndexOf(".",d-1)+1;return this._parts.hostname.substring(d)||""}if(!a)throw new TypeError("cannot set domain empty");if(-1!==a.indexOf(":"))throw new TypeError("Domains cannot contain colons");c.ensureValidHostname(a,this._parts.protocol);!this._parts.hostname||this.is("IP")?this._parts.hostname=a:(d=new RegExp(m(this.domain())+"$"),this._parts.hostname= +this._parts.hostname.replace(d,a));this.build(!b);return this};g.tld=function(a,b){if(this._parts.urn)return void 0===a?"":this;"boolean"===typeof a&&(b=a,a=void 0);if(void 0===a){if(!this._parts.hostname||this.is("IP"))return"";var c=this._parts.hostname.lastIndexOf(".");c=this._parts.hostname.substring(c+1);return!0!==b&&l&&l.list[c.toLowerCase()]?l.get(this._parts.hostname)||c:c}if(a)if(a.match(/[^a-zA-Z0-9-]/))if(l&&l.is(a))c=new RegExp(m(this.tld())+"$"),this._parts.hostname=this._parts.hostname.replace(c, +a);else throw new TypeError('TLD "'+a+'" contains characters other than [A-Z0-9]');else{if(!this._parts.hostname||this.is("IP"))throw new ReferenceError("cannot set TLD on non-domain host");c=new RegExp(m(this.tld())+"$");this._parts.hostname=this._parts.hostname.replace(c,a)}else throw new TypeError("cannot set TLD empty");this.build(!b);return this};g.directory=function(a,b){if(this._parts.urn)return void 0===a?"":this;if(void 0===a||!0===a){if(!this._parts.path&&!this._parts.hostname)return""; +if("/"===this._parts.path)return"/";var d=this._parts.path.length-this.filename().length-1;d=this._parts.path.substring(0,d)||(this._parts.hostname?"/":"");return a?c.decodePath(d):d}d=this._parts.path.length-this.filename().length;d=this._parts.path.substring(0,d);d=new 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a?c.decodePathSegment(d):d}"."===a.charAt(0)&&(a=a.substring(1));if(d=this.suffix())e=a?new RegExp(m(d)+"$"):new RegExp(m("."+d)+"$");else{if(!a)return this;this._parts.path+="."+c.recodePath(a)}e&&(a=c.recodePath(a),this._parts.path=this._parts.path.replace(e,a));this.build(!b);return this};g.segment= +function(a,b,c){var d=this._parts.urn?":":"/",f=this.path(),g="/"===f.substring(0,1);f=f.split(d);void 0!==a&&"number"!==typeof a&&(c=b,b=a,a=void 0);if(void 0!==a&&"number"!==typeof a)throw Error('Bad segment "'+a+'", must be 0-based integer');g&&f.shift();0>a&&(a=Math.max(f.length+a,0));if(void 0===b)return void 0===a?f:f[a];if(null===a||void 0===f[a])if(p(b)){f=[];a=0;for(var h=b.length;a 1) { + attributes = extend({ + path: '/' + }, api.defaults, attributes); + + if (typeof attributes.expires === 'number') { + var expires = new Date(); + expires.setMilliseconds(expires.getMilliseconds() + attributes.expires * 864e+5); + attributes.expires = expires; + } + + // We're using "expires" because "max-age" is not supported by IE + attributes.expires = attributes.expires ? attributes.expires.toUTCString() : ''; + + try { + result = JSON.stringify(value); + if (/^[\{\[]/.test(result)) { + value = result; + } + } catch (e) {} + + if (!converter.write) { + value = encodeURIComponent(String(value)) + .replace(/%(23|24|26|2B|3A|3C|3E|3D|2F|3F|40|5B|5D|5E|60|7B|7D|7C)/g, decodeURIComponent); + } else { + value = converter.write(value, key); + } + + key = encodeURIComponent(String(key)); + key = key.replace(/%(23|24|26|2B|5E|60|7C)/g, decodeURIComponent); + key = key.replace(/[\(\)]/g, escape); + + var stringifiedAttributes = ''; + + for (var attributeName in attributes) { + if (!attributes[attributeName]) { + continue; + } + stringifiedAttributes += '; ' + attributeName; + if (attributes[attributeName] === true) { + continue; + } + stringifiedAttributes += '=' + attributes[attributeName]; + } + return (document.cookie = key + '=' + value + stringifiedAttributes); + } + + // Read + + if (!key) { + result = {}; + } + + // To prevent the for loop in the first place assign an empty array + // in case there are no cookies at all. Also prevents odd result when + // calling "get()" + var cookies = document.cookie ? document.cookie.split('; ') : []; + var rdecode = /(%[0-9A-Z]{2})+/g; + var i = 0; + + for (; i < cookies.length; i++) { + var parts = cookies[i].split('='); + var cookie = parts.slice(1).join('='); + + if (cookie.charAt(0) === '"') { + cookie = cookie.slice(1, -1); + } + + try { + var name = parts[0].replace(rdecode, decodeURIComponent); + cookie = converter.read ? + converter.read(cookie, name) : converter(cookie, name) || + cookie.replace(rdecode, decodeURIComponent); + + if (this.json) { + try { + cookie = JSON.parse(cookie); + } catch (e) {} + } + + if (key === name) { + result = cookie; + break; + } + + if (!key) { + result[name] = cookie; + } + } catch (e) {} + } + + return result; + } + + api.set = api; + api.get = function (key) { + return api.call(api, key); + }; + api.getJSON = function () { + return api.apply({ + json: true + }, [].slice.call(arguments)); + }; + api.defaults = {}; + + api.remove = function (key, attributes) { + api(key, '', extend(attributes, { + expires: -1 + })); + }; + + api.withConverter = init; + + return api; + } + + return init(function () {}); +})); diff --git a/lib/pack.js b/lib/pack.js new file mode 100644 index 0000000..6a17b78 --- /dev/null +++ b/lib/pack.js @@ -0,0 +1,84 @@ +/*jslint es6: true*/ +/*global window*/ +(function () { + "use strict"; + + const bucketSize = 8; + + const binOptionsReduceFunction = function (binSize, prev, next) { + + if (prev.length === 0) { + prev.push([next]); + return prev; + } + + const mostRecentBin = prev[prev.length - 1]; + if (mostRecentBin.length < binSize) { + mostRecentBin.push(next); + return prev; + } + + prev.push([next]); + return prev; + }; + + const pack = function (options, selected) { + + const numBuckets = Math.ceil(options.length / bucketSize); + const binToBucketSizeFunc = binOptionsReduceFunction.bind(undefined, bucketSize); + options.sort(); + + const binnedOptions = options.reduce(binToBucketSizeFunc, []); + const bitFields = new Uint8Array(numBuckets); + + for (let i = 0; i < numBuckets; i += 1) { + let bitfield = 0; + let currentBucket = binnedOptions[i]; + + for (let j = 0; j < currentBucket.length; j += 1) { + + let currentOption = currentBucket[j]; + if (selected.indexOf(currentOption) !== -1) { + bitfield |= 1 << j; + } + } + + bitFields[i] = bitfield; + } + + const decoder = new TextDecoder('utf8'); + return window.btoa(decoder.decode(bitFields)); + }; + + const unpack = function (options, data) { + + const numBuckets = Math.ceil(options.length / bucketSize); + const binToBucketSizeFunc = binOptionsReduceFunction.bind(undefined, bucketSize); + options.sort(); + + const binnedOptions = options.reduce(binToBucketSizeFunc, []); + + const encoder = new TextEncoder('utf8'); + const bitFields = encoder.encode(window.atob(data)); + + const result = []; + + for (let i = 0; i < bitFields.length; i += 1) { + let currentBitField = bitFields[i]; + let currentOptionsBin = binnedOptions[i]; + + for (let j = 0; j < bucketSize; j += 1) { + if (currentBitField & (1 << j)) { + let currentOption = currentOptionsBin[j]; + result.push(currentOption); + } + } + } + + return result; + }; + + window.WEB_API_MANAGER.packingLib = { + pack, unpack + }; +}()); \ No newline at end of file diff --git a/config/js/storage.js b/lib/storage.js similarity index 100% rename from config/js/storage.js rename to lib/storage.js diff --git a/manifest.json b/manifest.json index 61aae36..507f670 100644 --- a/manifest.json +++ b/manifest.json @@ -1,27 +1,44 @@ { "manifest_version": 2, "name": "WebAPI Manager", - "version": "0.2", + "version": "0.3", "description": "Improves browser security by restricting page access to parts of the Web API.", "permissions": [ - "*://*/*", - "storage" + "http://*/*", "https://*/*", + "", + "storage", + "tabs", + "webRequest", + "webRequestBlocking", + "webNavigation" ], "content_scripts": [ { "matches": ["*://*/*"], "js": [ - "content_scripts/dist/init.js", + "lib/init.js", + "lib/pack.js", + "lib/js.cookie.js", "content_scripts/dist/standards.js", - "content_scripts/dist/defaults.js", "content_scripts/dist/instrument.js" ], "all_frames": true, "run_at": "document_start" } ], + "web_accessible_resources": [ + "lib/init.js", + "lib/js.cookie.js", + "lib/storage.js", + "lib/URI.js" + ], "background": { "scripts": [ + "lib/init.js", + "lib/pack.js", + "lib/storage.js", + "lib/URI.js", + "content_scripts/dist/standards.js", "background_scripts/bootstrap.js" ] }, @@ -29,4 +46,4 @@ "page": "config/index.html", "chrome_style": true } -} \ No newline at end of file +}