ABP/Android JavaScript code

assets/js/Matcher.jsm

+/*
+ * This Source Code is subject to the terms of the Mozilla Public License
+ * version 2.0 (the "License"). You can obtain a copy of the License at
+ * http://mozilla.org/MPL/2.0/.
+ */
+
+//
+// This file has been generated automatically from Adblock Plus source code
+//
+
+(function (_patchFunc0) {
+  function Matcher() {
+    this.clear();
+  }
+  Matcher.prototype = {
+    filterByKeyword: null,
+    keywordByFilter: null,
+    clear: function () {
+      this.filterByKeyword = {
+        __proto__: null
+      };
+      this.keywordByFilter = {
+        __proto__: null
+      };
+    }
+    ,
+    add: function (filter) {
+      if (filter.text in this.keywordByFilter)
+        return ;
+      var keyword = this.findKeyword(filter);
+      switch (typeof this.filterByKeyword[keyword]) {
+        case "undefined": {
+          this.filterByKeyword[keyword] = filter.text;
+          break;
+        }
+        case "string": {
+          this.filterByKeyword[keyword] = [this.filterByKeyword[keyword], filter.text];
+          break;
+        }
+        default: {
+          this.filterByKeyword[keyword].push(filter.text);
+          break;
+        }
+      }
+      this.keywordByFilter[filter.text] = keyword;
+    }
+    ,
+    remove: function (filter) {
+      if (!(filter.text in this.keywordByFilter))
+        return ;
+      var keyword = this.keywordByFilter[filter.text];
+      var list = this.filterByKeyword[keyword];
+      if (typeof list == "string")
+        delete this.filterByKeyword[keyword];
+       else {
+        var index = list.indexOf(filter.text);
+        if (index >= 0) {
+          list.splice(index, 1);
+          if (list.length == 1)
+            this.filterByKeyword[keyword] = list[0];
+        }
+      }
+      delete this.keywordByFilter[filter.text];
+    }
+    ,
+    findKeyword: function (filter) {
+      var defaultResult = (filter.contentType & RegExpFilter.typeMap.DONOTTRACK ? "donottrack" : "");
+      var text = filter.text;
+      if (Filter.regexpRegExp.test(text))
+        return defaultResult;
+      if (Filter.optionsRegExp.test(text))
+        text = RegExp.leftContext;
+      if (text.substr(0, 2) == "@@")
+        text = text.substr(2);
+      var candidates = text.toLowerCase().match(/[^a-z0-9%*][a-z0-9%]{3,}(?=[^a-z0-9%*])/g);
+      if (!candidates)
+        return defaultResult;
+      var hash = this.filterByKeyword;
+      var result = defaultResult;
+      var resultCount = 16777215;
+      var resultLength = 0;
+      for (var i = 0, l = candidates.length;
+      i < l; i++) {
+        var candidate = candidates[i].substr(1);
+        var count;
+        switch (typeof hash[candidate]) {
+          case "undefined": {
+            count = 0;
+            break;
+          }
+          case "string": {
+            count = 1;
+            break;
+          }
+          default: {
+            count = hash[candidate].length;
+            break;
+          }
+        }
+        if (count < resultCount || (count == resultCount && candidate.length > resultLength)) {
+          result = candidate;
+          resultCount = count;
+          resultLength = candidate.length;
+        }
+      }
+      return result;
+    }
+    ,
+    hasFilter: function (filter) {
+      return (filter.text in this.keywordByFilter);
+    }
+    ,
+    getKeywordForFilter: function (filter) {
+      if (filter.text in this.keywordByFilter)
+        return this.keywordByFilter[filter.text];
+       else
+        return null;
+    }
+    ,
+    _checkEntryMatch: function (keyword, location, contentType, docDomain, thirdParty) {
+      var list = this.filterByKeyword[keyword];
+      if (typeof list == "string") {
+        var filter = Filter.knownFilters[list];
+        if (!filter) {
+          delete this.filterByKeyword[keyword];
+          return null;
+        }
+        return (filter.matches(location, contentType, docDomain, thirdParty) ? filter : null);
+      }
+       else {
+        for (var i = 0;
+        i < list.length; i++) {
+          var filter = Filter.knownFilters[list[i]];
+          if (!filter) {
+            if (list.length == 1) {
+              delete this.filterByKeyword[keyword];
+              return null;
+            }
+             else {
+              list.splice(i--, 1);
+              continue;
+            }
+          }
+          if (filter.matches(location, contentType, docDomain, thirdParty))
+            return filter;
+        }
+        return null;
+      }
+    }
+    ,
+    matchesAny: function (location, contentType, docDomain, thirdParty) {
+      var candidates = location.toLowerCase().match(/[a-z0-9%]{3,}/g);
+      if (candidates === null)
+        candidates = [];
+      if (contentType == "DONOTTRACK")
+        candidates.unshift("donottrack");
+       else
+        candidates.push("");
+      for (var i = 0, l = candidates.length;
+      i < l; i++) {
+        var substr = candidates[i];
+        if (substr in this.filterByKeyword) {
+          var result = this._checkEntryMatch(substr, location, contentType, docDomain, thirdParty);
+          if (result)
+            return result;
+        }
+      }
+      return null;
+    }
+    ,
+    toCache: function (cache) {
+      cache.filterByKeyword = this.filterByKeyword;
+    }
+    ,
+    fromCache: function (cache) {
+      this.filterByKeyword = cache.filterByKeyword;
+      this.filterByKeyword.__proto__ = null;
+      delete this.keywordByFilter;
+      this.__defineGetter__("keywordByFilter", function () {
+        var result = {
+          __proto__: null
+        };
+        for (var k in this.filterByKeyword) {
+          var list = this.filterByKeyword[k];
+          if (typeof list == "string")
+            result[list] = k;
+           else
+            for (var i = 0, l = list.length;
+            i < l; i++)
+              result[list[i]] = k;
+        }
+        return this.keywordByFilter = result;
+      }
+      );
+      this.__defineSetter__("keywordByFilter", function (value) {
+        delete this.keywordByFilter;
+        return this.keywordByFilter = value;
+      }
+      );
+    }
+    
+  };
+  function CombinedMatcher() {
+    this.blacklist = new Matcher();
+    this.whitelist = new Matcher();
+    this.keys = {
+      __proto__: null
+    };
+    this.resultCache = {
+      __proto__: null
+    };
+  }
+  CombinedMatcher.maxCacheEntries = 1000;
+  CombinedMatcher.prototype = {
+    blacklist: null,
+    whitelist: null,
+    keys: null,
+    resultCache: null,
+    cacheEntries: 0,
+    clear: function () {
+      this.blacklist.clear();
+      this.whitelist.clear();
+      this.keys = {
+        __proto__: null
+      };
+      this.resultCache = {
+        __proto__: null
+      };
+      this.cacheEntries = 0;
+    }
+    ,
+    add: function (filter) {
+      if (filter instanceof WhitelistFilter) {
+        if (filter.siteKeys) {
+          for (var i = 0;
+          i < filter.siteKeys.length; i++)
+            this.keys[filter.siteKeys[i]] = filter.text;
+        }
+         else
+          this.whitelist.add(filter);
+      }
+       else
+        this.blacklist.add(filter);
+      if (this.cacheEntries > 0) {
+        this.resultCache = {
+          __proto__: null
+        };
+        this.cacheEntries = 0;
+      }
+    }
+    ,
+    remove: function (filter) {
+      if (filter instanceof WhitelistFilter) {
+        if (filter.siteKeys) {
+          for (var i = 0;
+          i < filter.siteKeys.length; i++)
+            delete this.keys[filter.siteKeys[i]];
+        }
+         else
+          this.whitelist.remove(filter);
+      }
+       else
+        this.blacklist.remove(filter);
+      if (this.cacheEntries > 0) {
+        this.resultCache = {
+          __proto__: null
+        };
+        this.cacheEntries = 0;
+      }
+    }
+    ,
+    findKeyword: function (filter) {
+      if (filter instanceof WhitelistFilter)
+        return this.whitelist.findKeyword(filter);
+       else
+        return this.blacklist.findKeyword(filter);
+    }
+    ,
+    hasFilter: function (filter) {
+      if (filter instanceof WhitelistFilter)
+        return this.whitelist.hasFilter(filter);
+       else
+        return this.blacklist.hasFilter(filter);
+    }
+    ,
+    getKeywordForFilter: function (filter) {
+      if (filter instanceof WhitelistFilter)
+        return this.whitelist.getKeywordForFilter(filter);
+       else
+        return this.blacklist.getKeywordForFilter(filter);
+    }
+    ,
+    isSlowFilter: function (filter) {
+      var matcher = (filter instanceof WhitelistFilter ? this.whitelist : this.blacklist);
+      if (matcher.hasFilter(filter))
+        return !matcher.getKeywordForFilter(filter);
+       else
+        return !matcher.findKeyword(filter);
+    }
+    ,
+    matchesAnyInternal: function (location, contentType, docDomain, thirdParty) {
+      var candidates = location.toLowerCase().match(/[a-z0-9%]{3,}/g);
+      if (candidates === null)
+        candidates = [];
+      if (contentType == "DONOTTRACK")
+        candidates.unshift("donottrack");
+       else
+        candidates.push("");
+      var blacklistHit = null;
+      for (var i = 0, l = candidates.length;
+      i < l; i++) {
+        var substr = candidates[i];
+        if (substr in this.whitelist.filterByKeyword) {
+          var result = this.whitelist._checkEntryMatch(substr, location, contentType, docDomain, thirdParty);
+          if (result)
+            return result;
+        }
+        if (substr in this.blacklist.filterByKeyword && blacklistHit === null)
+          blacklistHit = this.blacklist._checkEntryMatch(substr, location, contentType, docDomain, thirdParty);
+      }
+      return blacklistHit;
+    }
+    ,
+    matchesAny: function (location, contentType, docDomain, thirdParty) {
+      var key = location + " " + contentType + " " + docDomain + " " + thirdParty;
+      if (key in this.resultCache)
+        return this.resultCache[key];
+      var result = this.matchesAnyInternal(location, contentType, docDomain, thirdParty);
+      if (this.cacheEntries >= CombinedMatcher.maxCacheEntries) {
+        this.resultCache = {
+          __proto__: null
+        };
+        this.cacheEntries = 0;
+      }
+      this.resultCache[key] = result;
+      this.cacheEntries++;
+      return result;
+    }
+    ,
+    matchesByKey: function (location, key, docDomain) {
+      key = key.toUpperCase();
+      if (key in this.keys) {
+        var filter = Filter.knownFilters[this.keys[key]];
+        if (filter && filter.matches(location, "DOCUMENT", docDomain, false))
+          return filter;
+         else
+          return null;
+      }
+       else
+        return null;
+    }
+    ,
+    toCache: function (cache) {
+      cache.matcher = {
+        whitelist: {
+          
+        },
+        blacklist: {
+          
+        },
+        keys: this.keys
+      };
+      this.whitelist.toCache(cache.matcher.whitelist);
+      this.blacklist.toCache(cache.matcher.blacklist);
+    }
+    ,
+    fromCache: function (cache) {
+      this.whitelist.fromCache(cache.matcher.whitelist);
+      this.blacklist.fromCache(cache.matcher.blacklist);
+      this.keys = cache.matcher.keys;
+    }
+    
+  };
+  var defaultMatcher = new CombinedMatcher();
+  if (typeof _patchFunc0 != "undefined")
+    eval("(" + _patchFunc0.toString() + ")()");
+  window.Matcher = Matcher;
+  window.CombinedMatcher = CombinedMatcher;
+  window.defaultMatcher = defaultMatcher;
+}
+)(window.MatcherPatch);