Index: lib/whitelisting.js |
=================================================================== |
new file mode 100644 |
--- /dev/null |
+++ b/lib/whitelisting.js |
@@ -0,0 +1,92 @@ |
+/* |
+ * This file is part of Adblock Plus <http://adblockplus.org/>, |
+ * Copyright (C) 2006-2014 Eyeo GmbH |
+ * |
+ * Adblock Plus is free software: you can redistribute it and/or modify |
+ * it under the terms of the GNU General Public License version 3 as |
+ * published by the Free Software Foundation. |
+ * |
+ * Adblock Plus is distributed in the hope that it will be useful, |
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of |
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
+ * GNU General Public License for more details. |
+ * |
+ * You should have received a copy of the GNU General Public License |
+ * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. |
+ */ |
+ |
+let {defaultMatcher} = require("matcher"); |
+let {WhitelistFilter} = require("filterClasses"); |
+ |
+let pagesWithKeyException = new ext.PageMap(); |
+ |
+let isWhitelisted = exports.isWhitelisted = function(url, parentUrl, type) |
+{ |
+ let filter = defaultMatcher.matchesAny( |
+ stripFragmentFromURL(url), |
+ type || "DOCUMENT", |
+ extractHostFromURL(parentUrl || url), |
+ false |
+ ); |
+ |
+ return (filter instanceof WhitelistFilter ? filter : null); |
+}; |
+ |
+let isFrameWhitelisted = exports.isFrameWhitelisted = function(page, frame, type) |
+{ |
+ let urlsWithKeyException = pagesWithKeyException.get(page); |
+ |
+ for (; frame != null; frame = frame.parent) |
+ { |
+ if (urlsWithKeyException && stripFragmentFromURL(frame.url) in urlsWithKeyException) |
+ return true; |
+ if (isWhitelisted(frame.url, (frame.parent || {}).url, type)) |
+ return true; |
+ } |
+ |
+ return false; |
+}; |
+ |
+let verifyKeyException = function(token, url, docDomain) |
+{ |
+ let match = token.match(/((.*?)=*)_(.*)/); |
+ if (!match) |
+ return false; // invalid format |
+ |
+ let strippedKey = match[2]; |
+ if (!defaultMatcher.matchesByKey(url, strippedKey, docDomain)) |
+ return false; // unknown key |
+ |
+ let uri = new URI(url); |
+ let params = [ |
+ uri.path, // REQUEST_URI |
+ uri.asciiHost + (uri.port != -1 ? ":" + uri.port : ""), // HTTP_HOST |
+ window.navigator.userAgent // HTTP_USER_AGENT |
+ ]; |
+ |
+ let key = match[1]; |
+ let signature = match[3]; |
+ return verifySignature(key, signature, params.join("\0")); |
+}; |
+ |
+let recordKeyException = function(page, url) |
+{ |
+ let urlsWithKeyException = pagesWithKeyException.get(page); |
+ |
+ if (!urlsWithKeyException) |
+ { |
+ urlsWithKeyException = {__proto__: null}; |
+ pagesWithKeyException.set(page, urlsWithKeyException); |
+ } |
+ |
+ urlsWithKeyException[url] = null; |
+}; |
+ |
+let processKeyException = exports.processKeyException = function(token, page, frame) |
+{ |
+ let url = stripFragmentFromURL(frame.url); |
+ let docDomain = extractHostFromURL((frame.parent || frame).url); |
+ |
+ if (verifyKeyException(token, url, docDomain)) |
+ recordKeyException(page, url); |
+}; |