1 files changed, 169 insertions, 0 deletions
diff --git a/toolkit/components/url-classifier/content/trtable.js b/toolkit/components/url-classifier/content/trtable.js
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index 0000000000..c58a80c9ad
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+++ b/toolkit/components/url-classifier/content/trtable.js
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+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+// XXX: This should all be moved into the dbservice class so it happens
+// in the background thread.
+
+/**
+ * Abstract base class for a lookup table.
+ * @construction
+ */
+this.UrlClassifierTable = function UrlClassifierTable() {
+  this.debugZone = "urlclassifier-table";
+  this.name = '';
+  this.needsUpdate = false;
+  this.enchashDecrypter_ = new PROT_EnchashDecrypter();
+  this.wrappedJSObject = this;
+}
+
+UrlClassifierTable.prototype.QueryInterface = function(iid) {
+  if (iid.equals(Components.interfaces.nsISupports) ||
+      iid.equals(Components.interfaces.nsIUrlClassifierTable))
+    return this;
+
+  throw Components.results.NS_ERROR_NO_INTERFACE;
+}
+
+/**
+ * Subclasses need to implement this method.
+ */
+UrlClassifierTable.prototype.exists = function(url, callback) {
+  throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/////////////////////////////////////////////////////////////////////
+// Url table implementation
+this.UrlClassifierTableUrl = function UrlClassifierTableUrl() {
+  UrlClassifierTable.call(this);
+}
+
+UrlClassifierTableUrl.inherits = function(parentCtor) {
+  var tempCtor = function(){};
+  tempCtor.prototype = parentCtor.prototype;
+  this.superClass_ = parentCtor.prototype;
+  this.prototype = new tempCtor();
+}
+UrlClassifierTableUrl.inherits(UrlClassifierTable);
+
+/**
+ * Look up a URL in a URL table
+ */
+UrlClassifierTableUrl.prototype.exists = function(url, callback) {
+  // nsIUrlClassifierUtils.canonicalizeURL is the old way of canonicalizing a
+  // URL.  Unfortunately, it doesn't normalize numeric domains so alternate IP
+  // formats (hex, octal, etc) won't trigger a match.
+  // this.enchashDecrypter_.getCanonicalUrl does the right thing and
+  // normalizes a URL to 4 decimal numbers, but the update server may still be
+  // giving us encoded IP addresses.  So to be safe, we check both cases.
+  var urlUtils = Cc["@mozilla.org/url-classifier/utils;1"]
+                 .getService(Ci.nsIUrlClassifierUtils);
+  var oldCanonicalized = urlUtils.canonicalizeURL(url);
+  var canonicalized = this.enchashDecrypter_.getCanonicalUrl(url);
+  G_Debug(this, "Looking up: " + url + " (" + oldCanonicalized + " and " +
+                canonicalized + ")");
+  (new ExistsMultiQuerier([oldCanonicalized, canonicalized],
+                          this.name,
+                          callback)).run();
+}
+
+/////////////////////////////////////////////////////////////////////
+// Domain table implementation
+
+this.UrlClassifierTableDomain = function UrlClassifierTableDomain() {
+  UrlClassifierTable.call(this);
+  this.debugZone = "urlclassifier-table-domain";
+  this.ioService_ = Cc["@mozilla.org/network/io-service;1"]
+                    .getService(Ci.nsIIOService);
+}
+
+UrlClassifierTableDomain.inherits = function(parentCtor) {
+  var tempCtor = function(){};
+  tempCtor.prototype = parentCtor.prototype;
+  this.superClass_ = parentCtor.prototype;
+  this.prototype = new tempCtor();
+}
+UrlClassifierTableDomain.inherits(UrlClassifierTable);
+
+/**
+ * Look up a URL in a domain table
+ * We also try to lookup domain + first path component (e.g.,
+ * www.mozilla.org/products).
+ *
+ * @returns Boolean true if the url domain is in the table
+ */
+UrlClassifierTableDomain.prototype.exists = function(url, callback) {
+  var canonicalized = this.enchashDecrypter_.getCanonicalUrl(url);
+  var urlObj = this.ioService_.newURI(canonicalized, null, null);
+  var host = '';
+  try {
+    host = urlObj.host;
+  } catch (e) { }
+  var hostComponents = host.split(".");
+
+  // Try to get the path of the URL.  Pseudo urls (like wyciwyg:) throw
+  // errors when trying to convert to an nsIURL so we wrap in a try/catch
+  // block.
+  var path = ""
+  try {
+    urlObj.QueryInterface(Ci.nsIURL);
+    path = urlObj.filePath;
+  } catch (e) { }
+
+  var pathComponents = path.split("/");
+
+  // We don't have a good way map from hosts to domains, so we instead try
+  // each possibility. Could probably optimize to start at the second dot?
+  var possible = [];
+  for (var i = 0; i < hostComponents.length - 1; i++) {
+    host = hostComponents.slice(i).join(".");
+    possible.push(host);
+
+    // The path starts with a "/", so we are interested in the second path
+    // component if it is available
+    if (pathComponents.length >= 2 && pathComponents[1].length > 0) {
+      host = host + "/" + pathComponents[1];
+      possible.push(host);
+    }
+  }
+
+  // Run the possible domains against the db.
+  (new ExistsMultiQuerier(possible, this.name, callback)).run();
+}
+
+/////////////////////////////////////////////////////////////////////
+// Enchash table implementation
+
+this.UrlClassifierTableEnchash = function UrlClassifierTableEnchash() {
+  UrlClassifierTable.call(this);
+  this.debugZone = "urlclassifier-table-enchash";
+}
+
+UrlClassifierTableEnchash.inherits = function(parentCtor) {
+  var tempCtor = function(){};
+  tempCtor.prototype = parentCtor.prototype;
+  this.superClass_ = parentCtor.prototype;
+  this.prototype = new tempCtor();
+}
+UrlClassifierTableEnchash.inherits(UrlClassifierTable);
+
+/**
+ * Look up a URL in an enchashDB.  We try all sub domains (up to MAX_DOTS).
+ */
+UrlClassifierTableEnchash.prototype.exists = function(url, callback) {
+  url = this.enchashDecrypter_.getCanonicalUrl(url);
+  var host = this.enchashDecrypter_.getCanonicalHost(url,
+                                               PROT_EnchashDecrypter.MAX_DOTS);
+
+  var possible = [];
+  for (var i = 0; i < PROT_EnchashDecrypter.MAX_DOTS + 1; i++) {
+    possible.push(host);
+
+    var index = host.indexOf(".");
+    if (index == -1)
+      break;
+    host = host.substring(index + 1);
+  }
+  // Run the possible domains against the db.
+  (new EnchashMultiQuerier(possible, this.name, callback, url)).run();
+}