toolkit/forgetaboutsite/ForgetAboutSite.jsm

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/forgetaboutsite/ForgetAboutSite.jsm	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,229 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +Components.utils.import("resource://gre/modules/Services.jsm");
     1.9 +Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
    1.10 +Components.utils.import("resource://gre/modules/NetUtil.jsm");
    1.11 +Components.utils.import("resource://gre/modules/Task.jsm");
    1.12 +XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
    1.13 +                                  "resource://gre/modules/PlacesUtils.jsm");
    1.14 +XPCOMUtils.defineLazyModuleGetter(this, "Downloads",
    1.15 +                                  "resource://gre/modules/Downloads.jsm");
    1.16 +
    1.17 +this.EXPORTED_SYMBOLS = ["ForgetAboutSite"];
    1.18 +
    1.19 +/**
    1.20 + * Returns true if the string passed in is part of the root domain of the
    1.21 + * current string.  For example, if this is "www.mozilla.org", and we pass in
    1.22 + * "mozilla.org", this will return true.  It would return false the other way
    1.23 + * around.
    1.24 + */
    1.25 +function hasRootDomain(str, aDomain)
    1.26 +{
    1.27 +  let index = str.indexOf(aDomain);
    1.28 +  // If aDomain is not found, we know we do not have it as a root domain.
    1.29 +  if (index == -1)
    1.30 +    return false;
    1.31 +
    1.32 +  // If the strings are the same, we obviously have a match.
    1.33 +  if (str == aDomain)
    1.34 +    return true;
    1.35 +
    1.36 +  // Otherwise, we have aDomain as our root domain iff the index of aDomain is
    1.37 +  // aDomain.length subtracted from our length and (since we do not have an
    1.38 +  // exact match) the character before the index is a dot or slash.
    1.39 +  let prevChar = str[index - 1];
    1.40 +  return (index == (str.length - aDomain.length)) &&
    1.41 +         (prevChar == "." || prevChar == "/");
    1.42 +}
    1.43 +
    1.44 +const Cc = Components.classes;
    1.45 +const Ci = Components.interfaces;
    1.46 +const Cu = Components.utils;
    1.47 +
    1.48 +this.ForgetAboutSite = {
    1.49 +  removeDataFromDomain: function CRH_removeDataFromDomain(aDomain)
    1.50 +  {
    1.51 +    PlacesUtils.history.removePagesFromHost(aDomain, true);
    1.52 +
    1.53 +    // Cache
    1.54 +    let (cs = Cc["@mozilla.org/netwerk/cache-storage-service;1"].
    1.55 +              getService(Ci.nsICacheStorageService)) {
    1.56 +      // NOTE: there is no way to clear just that domain, so we clear out
    1.57 +      //       everything)
    1.58 +      try {
    1.59 +        cs.clear();
    1.60 +      } catch (ex) {
    1.61 +        Cu.reportError("Exception thrown while clearing the cache: " +
    1.62 +          ex.toString());
    1.63 +      }
    1.64 +    }
    1.65 +
    1.66 +    // Image Cache
    1.67 +    let (imageCache = Cc["@mozilla.org/image/tools;1"].
    1.68 +                      getService(Ci.imgITools).getImgCacheForDocument(null)) {
    1.69 +      try {
    1.70 +        imageCache.clearCache(false); // true=chrome, false=content
    1.71 +      } catch (ex) {
    1.72 +        Cu.reportError("Exception thrown while clearing the image cache: " +
    1.73 +          ex.toString());
    1.74 +      }
    1.75 +    }
    1.76 +
    1.77 +    // Cookies
    1.78 +    let (cm = Cc["@mozilla.org/cookiemanager;1"].
    1.79 +              getService(Ci.nsICookieManager2)) {
    1.80 +      let enumerator = cm.getCookiesFromHost(aDomain);
    1.81 +      while (enumerator.hasMoreElements()) {
    1.82 +        let cookie = enumerator.getNext().QueryInterface(Ci.nsICookie);
    1.83 +        cm.remove(cookie.host, cookie.name, cookie.path, false);
    1.84 +      }
    1.85 +    }
    1.86 +
    1.87 +    // Plugin data
    1.88 +    const phInterface = Ci.nsIPluginHost;
    1.89 +    const FLAG_CLEAR_ALL = phInterface.FLAG_CLEAR_ALL;
    1.90 +    let (ph = Cc["@mozilla.org/plugin/host;1"].getService(phInterface)) {
    1.91 +      let tags = ph.getPluginTags();
    1.92 +      for (let i = 0; i < tags.length; i++) {
    1.93 +        try {
    1.94 +          ph.clearSiteData(tags[i], aDomain, FLAG_CLEAR_ALL, -1);
    1.95 +        } catch (e) {
    1.96 +          // Ignore errors from the plugin
    1.97 +        }
    1.98 +      }
    1.99 +    }
   1.100 +
   1.101 +    // Downloads
   1.102 +    let useJSTransfer = false;
   1.103 +    try {
   1.104 +      // This method throws an exception if the old Download Manager is disabled.
   1.105 +      Services.downloads.activeDownloadCount;
   1.106 +    } catch (ex) {
   1.107 +      useJSTransfer = true;
   1.108 +    }
   1.109 +
   1.110 +    if (useJSTransfer) {
   1.111 +      Task.spawn(function() {
   1.112 +        let list = yield Downloads.getList(Downloads.ALL);
   1.113 +        list.removeFinished(download => hasRootDomain(
   1.114 +             NetUtil.newURI(download.source.url).host, aDomain));
   1.115 +      }).then(null, Cu.reportError);
   1.116 +    }
   1.117 +    else {
   1.118 +      let (dm = Cc["@mozilla.org/download-manager;1"].
   1.119 +                getService(Ci.nsIDownloadManager)) {
   1.120 +        // Active downloads
   1.121 +        for (let enumerator of [dm.activeDownloads, dm.activePrivateDownloads]) {
   1.122 +          while (enumerator.hasMoreElements()) {
   1.123 +            let dl = enumerator.getNext().QueryInterface(Ci.nsIDownload);
   1.124 +            if (hasRootDomain(dl.source.host, aDomain)) {
   1.125 +              dl.cancel();
   1.126 +              dl.remove();
   1.127 +            }
   1.128 +          }
   1.129 +        }
   1.130 +
   1.131 +        function deleteAllLike(db) {
   1.132 +          // NOTE: This is lossy, but we feel that it is OK to be lossy here and not
   1.133 +          //       invoke the cost of creating a URI for each download entry and
   1.134 +          //       ensure that the hostname matches.
   1.135 +          let stmt = db.createStatement(
   1.136 +            "DELETE FROM moz_downloads " +
   1.137 +            "WHERE source LIKE ?1 ESCAPE '/' " +
   1.138 +            "AND state NOT IN (?2, ?3, ?4)"
   1.139 +          );
   1.140 +          let pattern = stmt.escapeStringForLIKE(aDomain, "/");
   1.141 +          stmt.bindByIndex(0, "%" + pattern + "%");
   1.142 +          stmt.bindByIndex(1, Ci.nsIDownloadManager.DOWNLOAD_DOWNLOADING);
   1.143 +          stmt.bindByIndex(2, Ci.nsIDownloadManager.DOWNLOAD_PAUSED);
   1.144 +          stmt.bindByIndex(3, Ci.nsIDownloadManager.DOWNLOAD_QUEUED);
   1.145 +          try {
   1.146 +            stmt.execute();
   1.147 +          }
   1.148 +          finally {
   1.149 +            stmt.finalize();
   1.150 +          }
   1.151 +        }
   1.152 +
   1.153 +        // Completed downloads
   1.154 +        deleteAllLike(dm.DBConnection);
   1.155 +        deleteAllLike(dm.privateDBConnection);
   1.156 +
   1.157 +        // We want to rebuild the list if the UI is showing, so dispatch the
   1.158 +        // observer topic
   1.159 +        let os = Cc["@mozilla.org/observer-service;1"].
   1.160 +                 getService(Ci.nsIObserverService);
   1.161 +        os.notifyObservers(null, "download-manager-remove-download", null);
   1.162 +      }
   1.163 +    }
   1.164 +
   1.165 +    // Passwords
   1.166 +    let (lm = Cc["@mozilla.org/login-manager;1"].
   1.167 +              getService(Ci.nsILoginManager)) {
   1.168 +      // Clear all passwords for domain
   1.169 +      try {
   1.170 +        let logins = lm.getAllLogins();
   1.171 +        for (let i = 0; i < logins.length; i++)
   1.172 +          if (hasRootDomain(logins[i].hostname, aDomain))
   1.173 +            lm.removeLogin(logins[i]);
   1.174 +      }
   1.175 +      // XXXehsan: is there a better way to do this rather than this
   1.176 +      // hacky comparison?
   1.177 +      catch (ex if ex.message.indexOf("User canceled Master Password entry") != -1) { }
   1.178 +
   1.179 +      // Clear any "do not save for this site" for this domain
   1.180 +      let disabledHosts = lm.getAllDisabledHosts();
   1.181 +      for (let i = 0; i < disabledHosts.length; i++)
   1.182 +        if (hasRootDomain(disabledHosts[i], aDomain))
   1.183 +          lm.setLoginSavingEnabled(disabledHosts, true);
   1.184 +    }
   1.185 +
   1.186 +    // Permissions
   1.187 +    let (pm = Cc["@mozilla.org/permissionmanager;1"].
   1.188 +              getService(Ci.nsIPermissionManager)) {
   1.189 +      // Enumerate all of the permissions, and if one matches, remove it
   1.190 +      let enumerator = pm.enumerator;
   1.191 +      while (enumerator.hasMoreElements()) {
   1.192 +        let perm = enumerator.getNext().QueryInterface(Ci.nsIPermission);
   1.193 +        if (hasRootDomain(perm.host, aDomain))
   1.194 +          pm.remove(perm.host, perm.type);
   1.195 +      }
   1.196 +    }
   1.197 +
   1.198 +    // Offline Storages
   1.199 +    let (qm = Cc["@mozilla.org/dom/quota/manager;1"].
   1.200 +              getService(Ci.nsIQuotaManager)) {
   1.201 +      // delete data from both HTTP and HTTPS sites
   1.202 +      let caUtils = {};
   1.203 +      let scriptLoader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
   1.204 +                         getService(Ci.mozIJSSubScriptLoader);
   1.205 +      scriptLoader.loadSubScript("chrome://global/content/contentAreaUtils.js",
   1.206 +                                 caUtils);
   1.207 +      let httpURI = caUtils.makeURI("http://" + aDomain);
   1.208 +      let httpsURI = caUtils.makeURI("https://" + aDomain);
   1.209 +      qm.clearStoragesForURI(httpURI);
   1.210 +      qm.clearStoragesForURI(httpsURI);
   1.211 +    }
   1.212 +
   1.213 +    function onContentPrefsRemovalFinished() {
   1.214 +      // Everybody else (including extensions)
   1.215 +      Services.obs.notifyObservers(null, "browser:purge-domain-data", aDomain);
   1.216 +    }
   1.217 +
   1.218 +    // Content Preferences
   1.219 +    let cps2 = Cc["@mozilla.org/content-pref/service;1"].
   1.220 +               getService(Ci.nsIContentPrefService2);
   1.221 +    cps2.removeBySubdomain(aDomain, null, {
   1.222 +      handleCompletion: function() onContentPrefsRemovalFinished(),
   1.223 +      handleError: function() {}
   1.224 +    });
   1.225 +
   1.226 +    // Predictive network data - like cache, no way to clear this per
   1.227 +    // domain, so just trash it all
   1.228 +    let ns = Cc["@mozilla.org/network/seer;1"].
   1.229 +             getService(Ci.nsINetworkSeer);
   1.230 +    ns.reset();
   1.231 +  }
   1.232 +};

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