DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (777e60ca8853)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233
// -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
/* 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/. */

let Cc = Components.classes;
let Ci = Components.interfaces;
let Cu = Components.utils;

Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/LoadContextInfo.jsm");
Cu.import("resource://gre/modules/FormHistory.jsm");
Cu.import("resource://gre/modules/Messaging.jsm");

function dump(a) {
  Services.console.logStringMessage(a);
}

this.EXPORTED_SYMBOLS = ["Sanitizer"];

let downloads = {
  dlmgr: Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager),

  iterate: function (aCallback) {
    let dlmgr = downloads.dlmgr;
    let dbConn = dlmgr.DBConnection;
    let stmt = dbConn.createStatement("SELECT id FROM moz_downloads WHERE " +
        "state = ? OR state = ? OR state = ? OR state = ? OR state = ? OR state = ?");
    stmt.bindInt32Parameter(0, Ci.nsIDownloadManager.DOWNLOAD_FINISHED);
    stmt.bindInt32Parameter(1, Ci.nsIDownloadManager.DOWNLOAD_FAILED);
    stmt.bindInt32Parameter(2, Ci.nsIDownloadManager.DOWNLOAD_CANCELED);
    stmt.bindInt32Parameter(3, Ci.nsIDownloadManager.DOWNLOAD_BLOCKED_PARENTAL);
    stmt.bindInt32Parameter(4, Ci.nsIDownloadManager.DOWNLOAD_BLOCKED_POLICY);
    stmt.bindInt32Parameter(5, Ci.nsIDownloadManager.DOWNLOAD_DIRTY);
    while (stmt.executeStep()) {
      aCallback(dlmgr.getDownload(stmt.row.id));
    }
    stmt.finalize();
  },

  get canClear() {
    return this.dlmgr.canCleanUp;
  }
};

function Sanitizer() {}
Sanitizer.prototype = {
  clearItem: function (aItemName)
  {
    let item = this.items[aItemName];
    let canClear = item.canClear;
    if (typeof canClear == "function") {
      canClear(function clearCallback(aCanClear) {
        if (aCanClear)
          item.clear();
      });
    } else if (canClear) {
      item.clear();
    }
  },

  items: {
    cache: {
      clear: function ()
      {
        var cache = Cc["@mozilla.org/netwerk/cache-storage-service;1"].getService(Ci.nsICacheStorageService);
        try {
          cache.clear();
        } catch(er) {}

        let imageCache = Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools)
                                                         .getImgCacheForDocument(null);
        try {
          imageCache.clearCache(false); // true=chrome, false=content
        } catch(er) {}
      },

      get canClear()
      {
        return true;
      }
    },

    cookies: {
      clear: function ()
      {
        Services.cookies.removeAll();
      },

      get canClear()
      {
        return true;
      }
    },

    siteSettings: {
      clear: function ()
      {
        // Clear site-specific permissions like "Allow this site to open popups"
        Services.perms.removeAll();

        // Clear site-specific settings like page-zoom level
        Cc["@mozilla.org/content-pref/service;1"]
          .getService(Ci.nsIContentPrefService2)
          .removeAllDomains(null);

        // Clear "Never remember passwords for this site", which is not handled by
        // the permission manager
        var hosts = Services.logins.getAllDisabledHosts({})
        for (var host of hosts) {
          Services.logins.setLoginSavingEnabled(host, true);
        }
      },

      get canClear()
      {
        return true;
      }
    },

    offlineApps: {
      clear: function ()
      {
        var cacheService = Cc["@mozilla.org/netwerk/cache-storage-service;1"].getService(Ci.nsICacheStorageService);
        var appCacheStorage = cacheService.appCacheStorage(LoadContextInfo.default, null);
        try {
          appCacheStorage.asyncEvictStorage(null);
        } catch(er) {}
      },

      get canClear()
      {
          return true;
      }
    },

    history: {
      clear: function ()
      {
        sendMessageToJava({ type: "Sanitize:ClearHistory" });

        try {
          Services.obs.notifyObservers(null, "browser:purge-session-history", "");
        }
        catch (e) { }

        try {
          var seer = Cc["@mozilla.org/network/seer;1"].getService(Ci.nsINetworkSeer);
          seer.reset();
        } catch (e) { }
      },

      get canClear()
      {
        // bug 347231: Always allow clearing history due to dependencies on
        // the browser:purge-session-history notification. (like error console)
        return true;
      }
    },

    formdata: {
      clear: function ()
      {
        FormHistory.update({ op: "remove" });
      },

      canClear: function (aCallback)
      {
        let count = 0;
        let countDone = {
          handleResult: function(aResult) { count = aResult; },
          handleError: function(aError) { Cu.reportError(aError); },
          handleCompletion: function(aReason) { aCallback(aReason == 0 && count > 0); }
        };
        FormHistory.count({}, countDone);
      }
    },

    downloadFiles: {
      clear: function ()
      {
        downloads.iterate(function (dl) {
          // Delete the downloaded files themselves
          let f = dl.targetFile;
          if (f.exists()) {
            f.remove(false);
          }

          // Also delete downloads from history
          dl.remove();
        });
      },

      get canClear()
      {
        return downloads.canClear;
      }
    },

    passwords: {
      clear: function ()
      {
        Services.logins.removeAllLogins();
      },

      get canClear()
      {
        let count = Services.logins.countLogins("", "", ""); // count all logins
        return (count > 0);
      }
    },

    sessions: {
      clear: function ()
      {
        // clear all auth tokens
        var sdr = Cc["@mozilla.org/security/sdr;1"].getService(Ci.nsISecretDecoderRing);
        sdr.logoutAndTeardown();

        // clear FTP and plain HTTP auth sessions
        Services.obs.notifyObservers(null, "net:clear-active-logins", null);
      },

      get canClear()
      {
        return true;
      }
    }
  }
};

this.Sanitizer = new Sanitizer();