gecko-dev/toolkit/mozapps/extensions/XPIProvider.jsm

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244 KiB
JavaScript

/*
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is the Extension Manager.
#
# The Initial Developer of the Original Code is
# the Mozilla Foundation.
# Portions created by the Initial Developer are Copyright (C) 2009
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Dave Townsend <dtownsend@oxymoronical.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
*/
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
var EXPORTED_SYMBOLS = [];
Components.utils.import("resource://gre/modules/Services.jsm");
Components.utils.import("resource://gre/modules/AddonManager.jsm");
Components.utils.import("resource://gre/modules/AddonRepository.jsm");
Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
Components.utils.import("resource://gre/modules/FileUtils.jsm");
Components.utils.import("resource://gre/modules/NetUtil.jsm");
const PREF_DB_SCHEMA = "extensions.databaseSchema";
const PREF_INSTALL_CACHE = "extensions.installCache";
const PREF_BOOTSTRAP_ADDONS = "extensions.bootstrappedAddons";
const PREF_PENDING_OPERATIONS = "extensions.pendingOperations";
const PREF_MATCH_OS_LOCALE = "intl.locale.matchOS";
const PREF_SELECTED_LOCALE = "general.useragent.locale";
const PREF_EM_DSS_ENABLED = "extensions.dss.enabled";
const PREF_DSS_SWITCHPENDING = "extensions.dss.switchPending";
const PREF_DSS_SKIN_TO_SELECT = "extensions.lastSelectedSkin";
const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
const PREF_EM_CHECK_COMPATIBILITY = "extensions.checkCompatibility";
const PREF_EM_CHECK_UPDATE_SECURITY = "extensions.checkUpdateSecurity";
const PREF_EM_UPDATE_URL = "extensions.update.url";
const PREF_EM_ENABLED_ADDONS = "extensions.enabledAddons";
const PREF_EM_EXTENSION_FORMAT = "extensions.";
const PREF_EM_ENABLED_SCOPES = "extensions.enabledScopes";
const PREF_EM_SHOW_MISMATCH_UI = "extensions.showMismatchUI";
const PREF_EM_DISABLED_ADDONS_LIST = "extensions.disabledAddons";
const PREF_XPI_ENABLED = "xpinstall.enabled";
const PREF_XPI_WHITELIST_REQUIRED = "xpinstall.whitelist.required";
const PREF_XPI_WHITELIST_PERMISSIONS = "xpinstall.whitelist.add";
const PREF_XPI_BLACKLIST_PERMISSIONS = "xpinstall.blacklist.add";
const PREF_XPI_UNPACK = "extensions.alwaysUnpack";
const PREF_INSTALL_REQUIREBUILTINCERTS = "extensions.install.requireBuiltInCerts";
const PREF_INSTALL_DISTRO_ADDONS = "extensions.installDistroAddons";
const PREF_BRANCH_INSTALLED_ADDON = "extensions.installedDistroAddon.";
const URI_EXTENSION_UPDATE_DIALOG = "chrome://mozapps/content/extensions/update.xul";
const DIR_EXTENSIONS = "extensions";
const DIR_STAGE = "staged";
const DIR_XPI_STAGE = "staged-xpis";
const DIR_TRASH = "trash";
const FILE_OLD_DATABASE = "extensions.rdf";
const FILE_OLD_CACHE = "extensions.cache";
const FILE_DATABASE = "extensions.sqlite";
const FILE_INSTALL_MANIFEST = "install.rdf";
const FILE_XPI_ADDONS_LIST = "extensions.ini";
const KEY_PROFILEDIR = "ProfD";
const KEY_APPDIR = "XCurProcD";
const KEY_TEMPDIR = "TmpD";
const KEY_APP_DISTRIBUTION = "XREAppDist";
const KEY_APP_PROFILE = "app-profile";
const KEY_APP_GLOBAL = "app-global";
const KEY_APP_SYSTEM_LOCAL = "app-system-local";
const KEY_APP_SYSTEM_SHARE = "app-system-share";
const KEY_APP_SYSTEM_USER = "app-system-user";
const CATEGORY_UPDATE_PARAMS = "extension-update-params";
const UNKNOWN_XPCOM_ABI = "unknownABI";
const XPI_PERMISSION = "install";
const PREFIX_ITEM_URI = "urn:mozilla:item:";
const RDFURI_ITEM_ROOT = "urn:mozilla:item:root"
const RDFURI_INSTALL_MANIFEST_ROOT = "urn:mozilla:install-manifest";
const PREFIX_NS_EM = "http://www.mozilla.org/2004/em-rdf#";
const TOOLKIT_ID = "toolkit@mozilla.org";
const BRANCH_REGEXP = /^([^\.]+\.[0-9]+[a-z]*).*/gi;
const DB_SCHEMA = 3;
const REQ_VERSION = 2;
// Properties that exist in the install manifest
const PROP_METADATA = ["id", "version", "type", "internalName", "updateURL",
"updateKey", "optionsURL", "aboutURL", "iconURL",
"icon64URL"];
const PROP_LOCALE_SINGLE = ["name", "description", "creator", "homepageURL"];
const PROP_LOCALE_MULTI = ["developers", "translators", "contributors"];
const PROP_TARGETAPP = ["id", "minVersion", "maxVersion"];
// Properties that only exist in the database
const DB_METADATA = ["installDate", "updateDate", "size", "sourceURI",
"releaseNotesURI", "applyBackgroundUpdates"];
const DB_BOOL_METADATA = ["visible", "active", "userDisabled", "appDisabled",
"pendingUninstall", "bootstrap", "skinnable"];
const BOOTSTRAP_REASONS = {
APP_STARTUP : 1,
APP_SHUTDOWN : 2,
ADDON_ENABLE : 3,
ADDON_DISABLE : 4,
ADDON_INSTALL : 5,
ADDON_UNINSTALL : 6,
ADDON_UPGRADE : 7,
ADDON_DOWNGRADE : 8
};
// Map new string type identifiers to old style nsIUpdateItem types
const TYPES = {
extension: 2,
theme: 4,
locale: 8,
multipackage: 32
};
/**
* Valid IDs fit this pattern.
*/
var gIDTest = /^(\{[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\}|[a-z0-9-\._]*\@[a-z0-9-\._]+)$/i;
["LOG", "WARN", "ERROR"].forEach(function(aName) {
this.__defineGetter__(aName, function() {
Components.utils.import("resource://gre/modules/AddonLogging.jsm");
LogManager.getLogger("addons.xpi", this);
return this[aName];
})
}, this);
/**
* A safe way to install a file or the contents of a directory to a new
* directory. The file or directory is moved or copied recursively and if
* anything fails an attempt is made to rollback the entire operation. The
* operation may also be rolled back to its original state after it has
* completed by calling the rollback method.
*
* Operations can be chained. Calling move or copy multiple times will remember
* the whole set and if one fails all of the operations will be rolled back.
*/
function SafeInstallOperation() {
this._installedFiles = [];
this._createdDirs = [];
}
SafeInstallOperation.prototype = {
_installedFiles: null,
_createdDirs: null,
_installFile: function(aFile, aTargetDirectory, aCopy) {
let oldFile = aCopy ? null : aFile.clone();
let newFile = aFile.clone();
try {
if (aCopy)
newFile.copyTo(aTargetDirectory, null);
else
newFile.moveTo(aTargetDirectory, null);
}
catch (e) {
ERROR("Failed to " + (aCopy ? "copy" : "move") + " file " + aFile.path +
" to " + aTargetDirectory.path, e);
throw e;
}
this._installedFiles.push({ oldFile: null, newFile: newFile });
},
_installDirectory: function(aDirectory, aTargetDirectory, aCopy) {
let newDir = aTargetDirectory.clone();
newDir.append(aDirectory.leafName);
try {
newDir.create(Ci.nsILocalFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
}
catch (e) {
ERROR("Failed to create directory " + newDir.path, e);
throw e;
}
this._createdDirs.push(newDir);
let entries = aDirectory.directoryEntries
.QueryInterface(Ci.nsIDirectoryEnumerator);
let cacheEntries = [];
try {
let entry;
while (entry = entries.nextFile)
cacheEntries.push(entry);
}
finally {
entries.close();
}
cacheEntries.forEach(function(aEntry) {
try {
this._installDirEntry(aEntry, newDir, aCopy);
}
catch (e) {
ERROR("Failed to " + (aCopy ? "copy" : "move") + " entry " +
aEntry.path, e);
throw e;
}
}, this);
// If this is only a copy operation then there is nothing else to do
if (aCopy)
return;
// The directory should be empty by this point. If it isn't this will throw
// and all of the operations will be rolled back
try {
aDirectory.permissions = FileUtils.PERMS_DIRECTORY;
aDirectory.remove(false);
}
catch (e) {
ERROR("Failed to remove directory " + aDirectory.path, e);
throw e;
}
// Note we put the directory move in after all the file moves so the
// directory is recreated before all the files are moved back
this._installedFiles.push({ oldFile: aDirectory, newFile: newDir });
},
_installDirEntry: function(aDirEntry, aTargetDirectory, aCopy) {
try {
if (aDirEntry.isDirectory())
this._installDirectory(aDirEntry, aTargetDirectory, aCopy);
else
this._installFile(aDirEntry, aTargetDirectory, aCopy);
}
catch (e) {
ERROR("Failure " + (aCopy ? "copying" : "moving") + " " + aDirEntry.path +
" to " + aTargetDirectory.path);
throw e;
}
},
/**
* Moves a file or directory into a new directory. If an error occurs then all
* files that have been moved will be moved back to their original location.
*
* @param aFile
* The file or directory to be moved.
* @param aTargetDirectory
* The directory to move into, this is expected to be an empty
* directory.
*/
move: function(aFile, aTargetDirectory) {
try {
this._installDirEntry(aFile, aTargetDirectory, false);
}
catch (e) {
this.rollback();
throw e;
}
},
/**
* Copies a file or directory into a new directory. If an error occurs then
* all new files that have been created will be removed.
*
* @param aFile
* The file or directory to be copied.
* @param aTargetDirectory
* The directory to copy into, this is expected to be an empty
* directory.
*/
copy: function(aFile, aTargetDirectory) {
try {
this._installDirEntry(aFile, aTargetDirectory, true);
}
catch (e) {
this.rollback();
throw e;
}
},
/**
* Rolls back all the moves that this operation performed. If an exception
* occurs here then both old and new directories are left in an indeterminate
* state
*/
rollback: function() {
while (this._installedFiles.length > 0) {
let move = this._installedFiles.pop();
if (move.newFile.isDirectory()) {
let oldDir = move.oldFile.parent.clone();
oldDir.append(move.oldFile.leafName);
oldDir.create(Ci.nsILocalFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
}
else if (!move.oldFile) {
// No old file means this was a copied file
move.newFile.remove(true);
}
else {
move.newFile.moveTo(move.oldFile.parent, null);
}
}
while (this._createdDirs.length > 0)
recursiveRemove(this._createdDirs.pop());
}
};
/**
* Gets the currently selected locale for display.
* @return the selected locale or "en-US" if none is selected
*/
function getLocale() {
if (Prefs.getBoolPref(PREF_MATCH_OS_LOCALE, false))
return Services.locale.getLocaleComponentForUserAgent();
return Prefs.getCharPref(PREF_SELECTED_LOCALE, "en-US");
}
/**
* Selects the closest matching locale from a list of locales.
*
* @param aLocales
* An array of locales
* @return the best match for the currently selected locale
*/
function findClosestLocale(aLocales) {
let appLocale = getLocale();
// Holds the best matching localized resource
var bestmatch = null;
// The number of locale parts it matched with
var bestmatchcount = 0;
// The number of locale parts in the match
var bestpartcount = 0;
var matchLocales = [appLocale.toLowerCase()];
/* If the current locale is English then it will find a match if there is
a valid match for en-US so no point searching that locale too. */
if (matchLocales[0].substring(0, 3) != "en-")
matchLocales.push("en-us");
for each (var locale in matchLocales) {
var lparts = locale.split("-");
for each (var localized in aLocales) {
for each (found in localized.locales) {
found = found.toLowerCase();
// Exact match is returned immediately
if (locale == found)
return localized;
var fparts = found.split("-");
/* If we have found a possible match and this one isn't any longer
then we dont need to check further. */
if (bestmatch && fparts.length < bestmatchcount)
continue;
// Count the number of parts that match
var maxmatchcount = Math.min(fparts.length, lparts.length);
var matchcount = 0;
while (matchcount < maxmatchcount &&
fparts[matchcount] == lparts[matchcount])
matchcount++;
/* If we matched more than the last best match or matched the same and
this locale is less specific than the last best match. */
if (matchcount > bestmatchcount ||
(matchcount == bestmatchcount && fparts.length < bestpartcount)) {
bestmatch = localized;
bestmatchcount = matchcount;
bestpartcount = fparts.length;
}
}
}
// If we found a valid match for this locale return it
if (bestmatch)
return bestmatch;
}
return null;
}
/**
* Calculates whether an add-on should be appDisabled or not.
*
* @param aAddon
* The add-on to check
* @return true if the add-on should not be appDisabled
*/
function isUsableAddon(aAddon) {
// Hack to ensure the default theme is always usable
if (aAddon.type == "theme" && aAddon.internalName == XPIProvider.defaultSkin)
return true;
if (aAddon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED)
return false;
if (XPIProvider.checkUpdateSecurity && !aAddon.providesUpdatesSecurely)
return false;
if (!aAddon.isPlatformCompatible)
return false;
if (XPIProvider.checkCompatibility) {
if (!aAddon.isCompatible)
return false;
}
else {
if (!aAddon.matchingTargetApplication)
return false;
}
return true;
}
this.__defineGetter__("gRDF", function() {
delete this.gRDF;
return this.gRDF = Cc["@mozilla.org/rdf/rdf-service;1"].
getService(Ci.nsIRDFService);
});
function EM_R(aProperty) {
return gRDF.GetResource(PREFIX_NS_EM + aProperty);
}
/**
* Converts an RDF literal, resource or integer into a string.
*
* @param aLiteral
* The RDF object to convert
* @return a string if the object could be converted or null
*/
function getRDFValue(aLiteral) {
if (aLiteral instanceof Ci.nsIRDFLiteral)
return aLiteral.Value;
if (aLiteral instanceof Ci.nsIRDFResource)
return aLiteral.Value;
if (aLiteral instanceof Ci.nsIRDFInt)
return aLiteral.Value;
return null;
}
/**
* Gets an RDF property as a string
*
* @param aDs
* The RDF datasource to read the property from
* @param aResource
* The RDF resource to read the property from
* @param aProperty
* The property to read
* @return a string if the property existed or null
*/
function getRDFProperty(aDs, aResource, aProperty) {
return getRDFValue(aDs.GetTarget(aResource, EM_R(aProperty), true));
}
/**
* Reads an AddonInternal object from an RDF stream.
*
* @param aUri
* The URI that the manifest is being read from
* @param aStream
* An open stream to read the RDF from
* @return an AddonInternal object
* @throws if the install manifest in the RDF stream is corrupt or could not
* be read
*/
function loadManifestFromRDF(aUri, aStream) {
function getPropertyArray(aDs, aSource, aProperty) {
let values = [];
let targets = aDs.GetTargets(aSource, EM_R(aProperty), true);
while (targets.hasMoreElements())
values.push(getRDFValue(targets.getNext()));
return values;
}
/**
* Reads locale properties from either the main install manifest root or
* an em:localized section in the install manifest.
*
* @param aDs
* The nsIRDFDatasource to read from
* @param aSource
* The nsIRDFResource to read the properties from
* @param isDefault
* True if the locale is to be read from the main install manifest
* root
* @param aSeenLocales
* An array of locale names already seen for this install manifest.
* Any locale names seen as a part of this function will be added to
* this array
* @return an object containing the locale properties
*/
function readLocale(aDs, aSource, isDefault, aSeenLocales) {
let locale = { };
if (!isDefault) {
locale.locales = [];
let targets = ds.GetTargets(aSource, EM_R("locale"), true);
while (targets.hasMoreElements()) {
let localeName = getRDFValue(targets.getNext());
if (!localeName) {
WARN("Ignoring empty locale in localized properties");
continue;
}
if (aSeenLocales.indexOf(localeName) != -1) {
WARN("Ignoring duplicate locale in localized properties");
continue;
}
aSeenLocales.push(localeName);
locale.locales.push(localeName);
}
if (locale.locales.length == 0) {
WARN("Ignoring localized properties with no listed locales");
return null;
}
}
PROP_LOCALE_SINGLE.forEach(function(aProp) {
locale[aProp] = getRDFProperty(aDs, aSource, aProp);
});
PROP_LOCALE_MULTI.forEach(function(aProp) {
locale[aProp] = getPropertyArray(aDs, aSource,
aProp.substring(0, aProp.length - 1));
});
return locale;
}
let rdfParser = Cc["@mozilla.org/rdf/xml-parser;1"].
createInstance(Ci.nsIRDFXMLParser)
let ds = Cc["@mozilla.org/rdf/datasource;1?name=in-memory-datasource"].
createInstance(Ci.nsIRDFDataSource);
let listener = rdfParser.parseAsync(ds, aUri);
let channel = Cc["@mozilla.org/network/input-stream-channel;1"].
createInstance(Ci.nsIInputStreamChannel);
channel.setURI(aUri);
channel.contentStream = aStream;
channel.QueryInterface(Ci.nsIChannel);
channel.contentType = "text/xml";
listener.onStartRequest(channel, null);
try {
let pos = 0;
let count = aStream.available();
while (count > 0) {
listener.onDataAvailable(channel, null, aStream, pos, count);
pos += count;
count = aStream.available();
}
listener.onStopRequest(channel, null, Components.results.NS_OK);
}
catch (e) {
listener.onStopRequest(channel, null, e.result);
throw e;
}
let root = gRDF.GetResource(RDFURI_INSTALL_MANIFEST_ROOT);
let addon = new AddonInternal();
PROP_METADATA.forEach(function(aProp) {
addon[aProp] = getRDFProperty(ds, root, aProp);
});
addon.unpack = getRDFProperty(ds, root, "unpack") == "true";
if (!addon.type) {
addon.type = addon.internalName ? "theme" : "extension";
}
else {
for (let name in TYPES) {
if (TYPES[name] == addon.type) {
addon.type = name;
break;
}
}
}
if (!(addon.type in TYPES))
throw new Error("Install manifest specifies unknown type: " + addon.type);
if (addon.type != "multipackage") {
if (!addon.id)
throw new Error("No ID in install manifest");
if (!gIDTest.test(addon.id))
throw new Error("Illegal add-on ID " + addon.id);
if (!addon.version)
throw new Error("No version in install manifest");
}
// Only read the bootstrapped property for extensions
if (addon.type == "extension") {
addon.bootstrap = getRDFProperty(ds, root, "bootstrap") == "true";
}
else {
// Only extensions are allowed to provide an optionsURL or aboutURL. For
// all other types they are silently ignored
addon.optionsURL = null;
addon.aboutURL = null;
if (addon.type == "theme") {
if (!addon.internalName)
throw new Error("Themes must include an internalName property");
addon.skinnable = getRDFProperty(ds, root, "skinnable") == "true";
}
}
addon.defaultLocale = readLocale(ds, root, true);
let seenLocales = [];
addon.locales = [];
let targets = ds.GetTargets(root, EM_R("localized"), true);
while (targets.hasMoreElements()) {
let target = targets.getNext().QueryInterface(Ci.nsIRDFResource);
let locale = readLocale(ds, target, false, seenLocales);
if (locale)
addon.locales.push(locale);
}
let seenApplications = [];
addon.targetApplications = [];
targets = ds.GetTargets(root, EM_R("targetApplication"), true);
while (targets.hasMoreElements()) {
let target = targets.getNext().QueryInterface(Ci.nsIRDFResource);
let targetAppInfo = {};
PROP_TARGETAPP.forEach(function(aProp) {
targetAppInfo[aProp] = getRDFProperty(ds, target, aProp);
});
if (!targetAppInfo.id || !targetAppInfo.minVersion ||
!targetAppInfo.maxVersion) {
WARN("Ignoring invalid targetApplication entry in install manifest");
continue;
}
if (seenApplications.indexOf(targetAppInfo.id) != -1) {
WARN("Ignoring duplicate targetApplication entry for " + targetAppInfo.id +
" in install manifest");
continue;
}
seenApplications.push(targetAppInfo.id);
addon.targetApplications.push(targetAppInfo);
}
// Note that we don't need to check for duplicate targetPlatform entries since
// the RDF service coalesces them for us.
let targetPlatforms = getPropertyArray(ds, root, "targetPlatform");
addon.targetPlatforms = [];
targetPlatforms.forEach(function(aPlatform) {
let platform = {
os: null,
abi: null
};
let pos = aPlatform.indexOf("_");
if (pos != -1) {
platform.os = aPlatform.substring(0, pos);
platform.abi = aPlatform.substring(pos + 1);
}
else {
platform.os = aPlatform;
}
addon.targetPlatforms.push(platform);
});
// A theme's userDisabled value is true if the theme is not the selected skin
// or if there is an active lightweight theme. We ignore whether softblocking
// is in effect since it would change the active theme.
if (addon.type == "theme") {
addon.userDisabled = !!LightweightThemeManager.currentTheme ||
addon.internalName != XPIProvider.selectedSkin;
}
else {
addon.userDisabled = addon.blocklistState == Ci.nsIBlocklistService.STATE_SOFTBLOCKED;
}
addon.appDisabled = !isUsableAddon(addon);
addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DEFAULT;
return addon;
}
/**
* Loads an AddonInternal object from an add-on extracted in a directory.
*
* @param aDir
* The nsIFile directory holding the add-on
* @return an AddonInternal object
* @throws if the directory does not contain a valid install manifest
*/
function loadManifestFromDir(aDir) {
function getFileSize(aFile) {
if (aFile.isSymlink())
return 0;
if (!aFile.isDirectory())
return aFile.fileSize;
let size = 0;
let entries = aFile.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
let entry;
while (entry = entries.nextFile)
size += getFileSize(entry);
entries.close();
return size;
}
let file = aDir.clone();
file.append(FILE_INSTALL_MANIFEST);
if (!file.exists() || !file.isFile())
throw new Error("Directory " + aDir.path + " does not contain a valid " +
"install manifest");
let fis = Cc["@mozilla.org/network/file-input-stream;1"].
createInstance(Ci.nsIFileInputStream);
fis.init(file, -1, -1, false);
let bis = Cc["@mozilla.org/network/buffered-input-stream;1"].
createInstance(Ci.nsIBufferedInputStream);
bis.init(fis, 4096);
try {
let addon = loadManifestFromRDF(Services.io.newFileURI(file), bis);
addon._sourceBundle = aDir.clone().QueryInterface(Ci.nsILocalFile);
addon.size = getFileSize(aDir);
return addon;
}
finally {
bis.close();
fis.close();
}
}
/**
* Loads an AddonInternal object from an nsIZipReader for an add-on.
*
* @param aZipReader
* An open nsIZipReader for the add-on's files
* @return an AddonInternal object
* @throws if the XPI file does not contain a valid install manifest
*/
function loadManifestFromZipReader(aZipReader) {
let zis = aZipReader.getInputStream(FILE_INSTALL_MANIFEST);
let bis = Cc["@mozilla.org/network/buffered-input-stream;1"].
createInstance(Ci.nsIBufferedInputStream);
bis.init(zis, 4096);
try {
let uri = buildJarURI(aZipReader.file, FILE_INSTALL_MANIFEST);
let addon = loadManifestFromRDF(uri, bis);
addon._sourceBundle = aZipReader.file;
addon.size = 0;
let entries = aZipReader.findEntries(null);
while (entries.hasMore())
addon.size += aZipReader.getEntry(entries.getNext()).realSize;
return addon;
}
finally {
bis.close();
zis.close();
}
}
/**
* Loads an AddonInternal object from an add-on in an XPI file.
*
* @param aXPIFile
* An nsIFile pointing to the add-on's XPI file
* @return an AddonInternal object
* @throws if the XPI file does not contain a valid install manifest
*/
function loadManifestFromZipFile(aXPIFile) {
let zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].
createInstance(Ci.nsIZipReader);
try {
zipReader.open(aXPIFile);
return loadManifestFromZipReader(zipReader);
}
finally {
zipReader.close();
}
}
function loadManifestFromFile(aFile) {
if (aFile.isFile())
return loadManifestFromZipFile(aFile);
else
return loadManifestFromDir(aFile);
}
/**
* Creates a jar: URI for a file inside a ZIP file.
*
* @param aJarfile
* The ZIP file as an nsIFile
* @param aPath
* The path inside the ZIP file
* @return an nsIURI for the file
*/
function buildJarURI(aJarfile, aPath) {
let uri = Services.io.newFileURI(aJarfile);
uri = "jar:" + uri.spec + "!/" + aPath;
return NetUtil.newURI(uri);
}
/**
* Creates and returns a new unique temporary file. The caller should delete
* the file when it is no longer needed.
*
* @return an nsIFile that points to a randomly named, initially empty file in
* the OS temporary files directory
*/
function getTemporaryFile() {
let file = FileUtils.getDir(KEY_TEMPDIR, []);
let random = Math.random().toString(36).replace(/0./, '').substr(-3);
file.append("tmp-" + random + ".xpi");
file.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, FileUtils.PERMS_FILE);
return file;
}
/**
* Extracts files from a ZIP file into a directory.
*
* @param aZipFile
* The source ZIP file that contains the add-on.
* @param aDir
* The nsIFile to extract to.
*/
function extractFiles(aZipFile, aDir) {
function getTargetFile(aDir, entry) {
let target = aDir.clone();
entry.split("/").forEach(function(aPart) {
target.append(aPart);
});
return target;
}
let zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].
createInstance(Ci.nsIZipReader);
zipReader.open(aZipFile);
try {
// create directories first
let entries = zipReader.findEntries("*/");
while (entries.hasMore()) {
var entryName = entries.getNext();
let target = getTargetFile(aDir, entryName);
if (!target.exists()) {
try {
target.create(Ci.nsILocalFile.DIRECTORY_TYPE,
FileUtils.PERMS_DIRECTORY);
}
catch (e) {
ERROR("extractFiles: failed to create target directory for " +
"extraction file = " + target.path, e);
}
}
}
entries = zipReader.findEntries(null);
while (entries.hasMore()) {
let entryName = entries.getNext();
let target = getTargetFile(aDir, entryName);
if (target.exists())
continue;
zipReader.extract(entryName, target);
target.permissions |= FileUtils.PERMS_FILE;
}
}
finally {
zipReader.close();
}
}
/**
* Verifies that a zip file's contents are all signed by the same principal.
* Directory entries and anything in the META-INF directory are not checked.
*
* @param aZip
* A nsIZipReader to check
* @param aPrincipal
* The nsIPrincipal to compare against
* @return true if all the contents that should be signed were signed by the
* principal
*/
function verifyZipSigning(aZip, aPrincipal) {
var count = 0;
var entries = aZip.findEntries(null);
while (entries.hasMore()) {
var entry = entries.getNext();
// Nothing in META-INF is in the manifest.
if (entry.substr(0, 9) == "META-INF/")
continue;
// Directory entries aren't in the manifest.
if (entry.substr(-1) == "/")
continue;
count++;
var entryPrincipal = aZip.getCertificatePrincipal(entry);
if (!entryPrincipal || !aPrincipal.equals(entryPrincipal))
return false;
}
return aZip.manifestEntriesCount == count;
}
/**
* Replaces %...% strings in an addon url (update and updateInfo) with
* appropriate values.
*
* @param aAddon
* The AddonInternal representing the add-on
* @param aUri
* The uri to escape
* @param aUpdateType
* An optional number representing the type of update, only applicable
* when creating a url for retrieving an update manifest
* @param aAppVersion
* The optional application version to use for %APP_VERSION%
* @return the appropriately escaped uri.
*/
function escapeAddonURI(aAddon, aUri, aUpdateType, aAppVersion)
{
var addonStatus = aAddon.userDisabled ? "userDisabled" : "userEnabled";
if (!aAddon.isCompatible)
addonStatus += ",incompatible";
if (aAddon.blocklistState > 0)
addonStatus += ",blocklisted";
try {
var xpcomABI = Services.appinfo.XPCOMABI;
} catch (ex) {
xpcomABI = UNKNOWN_XPCOM_ABI;
}
let uri = aUri.replace(/%ITEM_ID%/g, aAddon.id);
uri = uri.replace(/%ITEM_VERSION%/g, aAddon.version);
uri = uri.replace(/%ITEM_STATUS%/g, addonStatus);
uri = uri.replace(/%APP_ID%/g, Services.appinfo.ID);
uri = uri.replace(/%APP_VERSION%/g, aAppVersion ? aAppVersion :
Services.appinfo.version);
uri = uri.replace(/%REQ_VERSION%/g, REQ_VERSION);
uri = uri.replace(/%APP_OS%/g, Services.appinfo.OS);
uri = uri.replace(/%APP_ABI%/g, xpcomABI);
uri = uri.replace(/%APP_LOCALE%/g, getLocale());
uri = uri.replace(/%CURRENT_APP_VERSION%/g, Services.appinfo.version);
// If there is an updateType then replace the UPDATE_TYPE string
if (aUpdateType)
uri = uri.replace(/%UPDATE_TYPE%/g, aUpdateType);
// If this add-on has compatibility information for either the current
// application or toolkit then replace the ITEM_MAXAPPVERSION with the
// maxVersion
let app = aAddon.matchingTargetApplication;
if (app)
var maxVersion = app.maxVersion;
else
maxVersion = "";
uri = uri.replace(/%ITEM_MAXAPPVERSION%/g, maxVersion);
// Replace custom parameters (names of custom parameters must have at
// least 3 characters to prevent lookups for something like %D0%C8)
var catMan = null;
uri = uri.replace(/%(\w{3,})%/g, function(aMatch, aParam) {
if (!catMan) {
catMan = Cc["@mozilla.org/categorymanager;1"].
getService(Ci.nsICategoryManager);
}
try {
var contractID = catMan.getCategoryEntry(CATEGORY_UPDATE_PARAMS, aParam);
var paramHandler = Cc[contractID].getService(Ci.nsIPropertyBag2);
return paramHandler.getPropertyAsAString(aParam);
}
catch(e) {
return aMatch;
}
});
// escape() does not properly encode + symbols in any embedded FVF strings.
return uri.replace(/\+/g, "%2B");
}
/**
* Copies properties from one object to another. If no target object is passed
* a new object will be created and returned.
*
* @param aObject
* An object to copy from
* @param aProperties
* An array of properties to be copied
* @param aTarget
* An optional target object to copy the properties to
* @return the object that the properties were copied onto
*/
function copyProperties(aObject, aProperties, aTarget) {
if (!aTarget)
aTarget = {};
aProperties.forEach(function(aProp) {
aTarget[aProp] = aObject[aProp];
});
return aTarget;
}
/**
* Copies properties from a mozIStorageRow to an object. If no target object is
* passed a new object will be created and returned.
*
* @param aRow
* A mozIStorageRow to copy from
* @param aProperties
* An array of properties to be copied
* @param aTarget
* An optional target object to copy the properties to
* @return the object that the properties were copied onto
*/
function copyRowProperties(aRow, aProperties, aTarget) {
if (!aTarget)
aTarget = {};
aProperties.forEach(function(aProp) {
aTarget[aProp] = aRow.getResultByName(aProp);
});
return aTarget;
}
/**
* A generator to synchronously return result rows from an mozIStorageStatement.
*
* @param aStatement
* The statement to execute
*/
function resultRows(aStatement) {
try {
while (stepStatement(aStatement))
yield aStatement.row;
}
finally {
aStatement.reset();
}
}
/**
* Removes the specified files or directories in a staging directory and then if
* the staging directory is empty attempts to remove it.
*
* @param aDir
* nsIFile for the staging directory to clean up
* @param aLeafNames
* An array of file or directory to remove from the directory, the
* array may be empty
*/
function cleanStagingDir(aDir, aLeafNames) {
aLeafNames.forEach(function(aName) {
let file = aDir.clone();
file.append(aName);
if (file.exists())
recursiveRemove(file);
});
let dirEntries = aDir.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
try {
if (dirEntries.nextFile)
return;
}
finally {
dirEntries.close();
}
try {
aDir.permissions = FileUtils.PERMS_DIRECTORY;
aDir.remove(false);
}
catch (e) {
// Failing to remove the staging directory is ignorable
}
}
/**
* Recursively removes a directory or file fixing permissions when necessary.
*
* @param aFile
* The nsIFile to remove
*/
function recursiveRemove(aFile) {
aFile.permissions = aFile.isDirectory() ? FileUtils.PERMS_DIRECTORY
: FileUtils.PERMS_FILE;
try {
aFile.remove(true);
return;
}
catch (e) {
if (!aFile.isDirectory()) {
ERROR("Failed to remove file " + aFile.path, e);
throw e;
}
}
let entry;
let dirEntries = aFile.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
try {
while (entry = dirEntries.nextFile)
recursiveRemove(entry);
aFile.remove(true);
}
finally {
dirEntries.close();
}
}
/**
* Returns the timestamp of the most recently modified file in a directory,
* or simply the file's own timestamp if it is not a directory.
*
* @param aFile
* A non-null nsIFile object
* @return Epoch time, as described above. 0 for an empty directory.
*/
function recursiveLastModifiedTime(aFile) {
if (aFile.isFile())
return aFile.lastModifiedTime;
if (aFile.isDirectory()) {
let entries = aFile.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
let entry, time;
let maxTime = aFile.lastModifiedTime;
while (entry = entries.nextFile) {
time = recursiveLastModifiedTime(entry);
maxTime = Math.max(time, maxTime);
}
entries.close();
return maxTime;
}
// If the file is something else, just ignore it.
return 0;
}
/**
* A helpful wrapper around the prefs service that allows for default values
* when requested values aren't set.
*/
var Prefs = {
/**
* Gets a preference from the default branch ignoring user-set values.
*
* @param aName
* The name of the preference
* @param aDefaultValue
* A value to return if the preference does not exist
* @return the default value of the preference or aDefaultValue if there is
* none
*/
getDefaultCharPref: function(aName, aDefaultValue) {
try {
return Services.prefs.getDefaultBranch("").getCharPref(aName);
}
catch (e) {
}
return aDefaultValue;
},
/**
* Gets a string preference.
*
* @param aName
* The name of the preference
* @param aDefaultValue
* A value to return if the preference does not exist
* @return the value of the preference or aDefaultValue if there is none
*/
getCharPref: function(aName, aDefaultValue) {
try {
return Services.prefs.getCharPref(aName);
}
catch (e) {
}
return aDefaultValue;
},
/**
* Gets a boolean preference.
*
* @param aName
* The name of the preference
* @param aDefaultValue
* A value to return if the preference does not exist
* @return the value of the preference or aDefaultValue if there is none
*/
getBoolPref: function(aName, aDefaultValue) {
try {
return Services.prefs.getBoolPref(aName);
}
catch (e) {
}
return aDefaultValue;
},
/**
* Gets an integer preference.
*
* @param aName
* The name of the preference
* @param defaultValue
* A value to return if the preference does not exist
* @return the value of the preference or defaultValue if there is none
*/
getIntPref: function(aName, defaultValue) {
try {
return Services.prefs.getIntPref(aName);
}
catch (e) {
}
return defaultValue;
}
}
var XPIProvider = {
// An array of known install locations
installLocations: null,
// A dictionary of known install locations by name
installLocationsByName: null,
// An array of currently active AddonInstalls
installs: null,
// The default skin for the application
defaultSkin: "classic/1.0",
// The current skin used by the application
currentSkin: null,
// The selected skin to be used by the application when it is restarted. This
// will be the same as currentSkin when it is the skin to be used when the
// application is restarted
selectedSkin: null,
// The name of the checkCompatibility preference for the current application
// version
checkCompatibilityPref: null,
// The value of the checkCompatibility preference
checkCompatibility: true,
// The value of the checkUpdateSecurity preference
checkUpdateSecurity: true,
// A dictionary of the file descriptors for bootstrappable add-ons by ID
bootstrappedAddons: {},
// A dictionary of JS scopes of loaded bootstrappable add-ons by ID
bootstrapScopes: {},
// True if the platform could have activated extensions
extensionsActive: false,
// True if all of the add-ons found during startup were installed in the
// application install location
allAppGlobal: true,
// A string listing the enabled add-ons for annotating crash reports
enabledAddons: null,
// An array of add-on IDs of add-ons that were inactive during startup
inactiveAddonIDs: [],
// A cache of the add-on IDs of add-ons that had changes performed to them
// during this session's startup. This is preliminary work, hopefully it will
// be expanded on in the future and an API made to get at it from the
// application.
startupChanges: {
// Add-ons that became disabled for compatibility reasons
appDisabled: []
},
/**
* Starts the XPI provider initializes the install locations and prefs.
*
* @param aAppChanged
* A tri-state value. Undefined means the current profile was created
* for this session, true means the profile already existed but was
* last used with an application with a different version number,
* false means that the profile was last used by this version of the
* application.
*/
startup: function XPI_startup(aAppChanged) {
LOG("startup");
this.installs = [];
this.installLocations = [];
this.installLocationsByName = {};
function addDirectoryInstallLocation(aName, aKey, aPaths, aScope, aLocked) {
try {
var dir = FileUtils.getDir(aKey, aPaths);
}
catch (e) {
// Some directories aren't defined on some platforms, ignore them
LOG("Skipping unavailable install location " + aName);
return;
}
try {
var location = new DirectoryInstallLocation(aName, dir, aScope, aLocked);
}
catch (e) {
WARN("Failed to add directory install location " + aName, e);
return;
}
XPIProvider.installLocations.push(location);
XPIProvider.installLocationsByName[location.name] = location;
}
function addRegistryInstallLocation(aName, aRootkey, aScope) {
try {
var location = new WinRegInstallLocation(aName, aRootkey, aScope);
}
catch (e) {
WARN("Failed to add registry install location " + aName, e);
return;
}
XPIProvider.installLocations.push(location);
XPIProvider.installLocationsByName[location.name] = location;
}
let hasRegistry = ("nsIWindowsRegKey" in Ci);
let enabledScopes = Prefs.getIntPref(PREF_EM_ENABLED_SCOPES,
AddonManager.SCOPE_ALL);
// These must be in order of priority for processFileChanges etc. to work
if (enabledScopes & AddonManager.SCOPE_SYSTEM) {
if (hasRegistry) {
addRegistryInstallLocation("winreg-app-global",
Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
AddonManager.SCOPE_SYSTEM);
}
addDirectoryInstallLocation(KEY_APP_SYSTEM_LOCAL, "XRESysLExtPD",
[Services.appinfo.ID],
AddonManager.SCOPE_SYSTEM, true);
addDirectoryInstallLocation(KEY_APP_SYSTEM_SHARE, "XRESysSExtPD",
[Services.appinfo.ID],
AddonManager.SCOPE_SYSTEM, true);
}
if (enabledScopes & AddonManager.SCOPE_APPLICATION) {
addDirectoryInstallLocation(KEY_APP_GLOBAL, KEY_APPDIR,
[DIR_EXTENSIONS],
AddonManager.SCOPE_APPLICATION, true);
}
if (enabledScopes & AddonManager.SCOPE_USER) {
if (hasRegistry) {
addRegistryInstallLocation("winreg-app-user",
Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
AddonManager.SCOPE_USER);
}
addDirectoryInstallLocation(KEY_APP_SYSTEM_USER, "XREUSysExt",
[Services.appinfo.ID],
AddonManager.SCOPE_USER, true);
}
// The profile location is always enabled
addDirectoryInstallLocation(KEY_APP_PROFILE, KEY_PROFILEDIR,
[DIR_EXTENSIONS],
AddonManager.SCOPE_PROFILE, false);
this.defaultSkin = Prefs.getDefaultCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN,
"classic/1.0");
this.currentSkin = Prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN,
this.defaultSkin);
this.selectedSkin = this.currentSkin;
this.applyThemeChange();
var version = Services.appinfo.version.replace(BRANCH_REGEXP, "$1");
this.checkCompatibilityPref = PREF_EM_CHECK_COMPATIBILITY + "." + version;
this.checkCompatibility = Prefs.getBoolPref(this.checkCompatibilityPref,
true)
this.checkUpdateSecurity = Prefs.getBoolPref(PREF_EM_CHECK_UPDATE_SECURITY,
true)
this.enabledAddons = [];
Services.prefs.addObserver(this.checkCompatibilityPref, this, false);
Services.prefs.addObserver(PREF_EM_CHECK_UPDATE_SECURITY, this, false);
let flushCaches = this.checkForChanges(aAppChanged);
// Changes to installed extensions may have changed which theme is selected
this.applyThemeChange();
if (Services.prefs.prefHasUserValue(PREF_EM_DISABLED_ADDONS_LIST))
Services.prefs.clearUserPref(PREF_EM_DISABLED_ADDONS_LIST);
// If the application has been upgraded and there are add-ons outside the
// application directory then we may need to synchronize compatibility
// information
if (aAppChanged && !this.allAppGlobal) {
// Should we show a UI or just pass the list via a pref?
if (Prefs.getBoolPref(PREF_EM_SHOW_MISMATCH_UI, true)) {
this.showMismatchWindow();
flushCaches = true;
}
else if (this.startupChanges.appDisabled.length > 0) {
// Remember the list of add-ons that were disabled this startup so
// the application can notify the user however it wants to
Services.prefs.setCharPref(PREF_EM_DISABLED_ADDONS_LIST,
this.startupChanges.appDisabled.join(","));
}
}
if (flushCaches) {
// Init this, so it will get the notification.
let xulPrototypeCache = Cc["@mozilla.org/xul/xul-prototype-cache;1"].getService(Ci.nsISupports);
Services.obs.notifyObservers(null, "startupcache-invalidate", null);
}
this.enabledAddons = Prefs.getCharPref(PREF_EM_ENABLED_ADDONS, "");
if ("nsICrashReporter" in Ci &&
Services.appinfo instanceof Ci.nsICrashReporter) {
// Annotate the crash report with relevant add-on information.
try {
Services.appinfo.annotateCrashReport("Theme", this.currentSkin);
} catch (e) { }
try {
Services.appinfo.annotateCrashReport("EMCheckCompatibility",
this.checkCompatibility);
} catch (e) { }
this.addAddonsToCrashReporter();
}
for (let id in this.bootstrappedAddons) {
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.persistentDescriptor = this.bootstrappedAddons[id].descriptor;
this.callBootstrapMethod(id, this.bootstrappedAddons[id].version, file,
"startup", BOOTSTRAP_REASONS.APP_STARTUP);
}
// Let these shutdown a little earlier when they still have access to most
// of XPCOM
Services.obs.addObserver({
observe: function(aSubject, aTopic, aData) {
Services.prefs.setCharPref(PREF_BOOTSTRAP_ADDONS,
JSON.stringify(XPIProvider.bootstrappedAddons));
for (let id in XPIProvider.bootstrappedAddons) {
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.persistentDescriptor = XPIProvider.bootstrappedAddons[id].descriptor;
XPIProvider.callBootstrapMethod(id, XPIProvider.bootstrappedAddons[id].version,
file, "shutdown",
BOOTSTRAP_REASONS.APP_SHUTDOWN);
}
Services.obs.removeObserver(this, "quit-application-granted");
}
}, "quit-application-granted", false);
this.extensionsActive = true;
},
/**
* Shuts down the database and releases all references.
*/
shutdown: function XPI_shutdown() {
LOG("shutdown");
Services.prefs.removeObserver(this.checkCompatibilityPref, this);
Services.prefs.removeObserver(PREF_EM_CHECK_UPDATE_SECURITY, this);
this.bootstrappedAddons = {};
this.bootstrapScopes = {};
this.enabledAddons = null;
this.allAppGlobal = true;
for (let type in this.startupChanges)
this.startupChanges[type] = [];
this.inactiveAddonIDs = [];
// If there are pending operations then we must update the list of active
// add-ons
if (Prefs.getBoolPref(PREF_PENDING_OPERATIONS, false)) {
XPIDatabase.updateActiveAddons();
XPIDatabase.writeAddonsList();
Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, false);
}
this.installs = null;
this.installLocations = null;
this.installLocationsByName = null;
// This is needed to allow xpcshell tests to simulate a restart
this.extensionsActive = false;
XPIDatabase.shutdown(function() {
Services.obs.notifyObservers(null, "xpi-provider-shutdown", null);
});
},
/**
* Applies any pending theme change to the preferences.
*/
applyThemeChange: function XPI_applyThemeChange() {
if (!Prefs.getBoolPref(PREF_DSS_SWITCHPENDING, false))
return;
// Tell the Chrome Registry which Skin to select
try {
this.selectedSkin = Prefs.getCharPref(PREF_DSS_SKIN_TO_SELECT);
Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN,
this.selectedSkin);
Services.prefs.clearUserPref(PREF_DSS_SKIN_TO_SELECT);
LOG("Changed skin to " + this.selectedSkin);
this.currentSkin = this.selectedSkin;
}
catch (e) {
ERROR("Error applying theme change", e);
}
Services.prefs.clearUserPref(PREF_DSS_SWITCHPENDING);
},
/**
* Shows the "Compatibility Updates" UI
*/
showMismatchWindow: function XPI_showMismatchWindow() {
var variant = Cc["@mozilla.org/variant;1"].
createInstance(Ci.nsIWritableVariant);
variant.setFromVariant(this.inactiveAddonIDs);
// This *must* be modal as it has to block startup.
var features = "chrome,centerscreen,dialog,titlebar,modal";
var ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
getService(Ci.nsIWindowWatcher);
ww.openWindow(null, URI_EXTENSION_UPDATE_DIALOG, "", features, variant);
// Ensure any changes to the add-ons list are flushed to disk
XPIDatabase.writeAddonsList([]);
Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, false);
},
/**
* Adds a list of currently active add-ons to the next crash report.
*/
addAddonsToCrashReporter: function XPI_addAddonsToCrashReporter() {
if (!("nsICrashReporter" in Ci) ||
!(Services.appinfo instanceof Ci.nsICrashReporter))
return;
// In safe mode no add-ons are loaded so we should not include them in the
// crash report
if (Services.appinfo.inSafeMode)
return;
let data = this.enabledAddons;
for (let id in this.bootstrappedAddons)
data += (data ? "," : "") + id + ":" + this.bootstrappedAddons[id].version;
try {
Services.appinfo.annotateCrashReport("Add-ons", data);
}
catch (e) { }
},
/**
* Gets the add-on states for an install location.
* This function may be expensive because of the recursiveLastModifiedTime call.
*
* @param location
* The install location to retrieve the add-on states for
* @return a dictionary mapping add-on IDs to objects with a descriptor
* property which contains the add-ons dir/file descriptor and an
* mtime property which contains the add-on's last modified time as
* the number of milliseconds since the epoch.
*/
getAddonStates: function XPI_getAddonStates(aLocation) {
let addonStates = {};
aLocation.addonLocations.forEach(function(file) {
let id = aLocation.getIDForLocation(file);
addonStates[id] = {
descriptor: file.persistentDescriptor,
mtime: recursiveLastModifiedTime(file)
};
});
return addonStates;
},
/**
* Gets an array of install location states which uniquely describes all
* installed add-ons with the add-on's InstallLocation name and last modified
* time. This function may be expensive because of the getAddonStates() call.
*
* @return an array of add-on states for each install location. Each state
* is an object with a name property holding the location's name and
* an addons property holding the add-on states for the location
*/
getInstallLocationStates: function XPI_getInstallLocationStates() {
let states = [];
this.installLocations.forEach(function(aLocation) {
let addons = aLocation.addonLocations;
if (addons.length == 0)
return;
let locationState = {
name: aLocation.name,
addons: this.getAddonStates(aLocation)
};
states.push(locationState);
}, this);
return states;
},
/**
* Check the staging directories of install locations for any add-ons to be
* installed or add-ons to be uninstalled.
*
* @param aManifests
* A dictionary to add detected install manifests to for the purpose
* of passing through updated compatibility information
* @return true if an add-on was installed or uninstalled
*/
processPendingFileChanges: function XPI_processPendingFileChanges(aManifests) {
let changed = false;
this.installLocations.forEach(function(aLocation) {
aManifests[aLocation.name] = {};
// We can't install or uninstall anything in locked locations
if (aLocation.locked)
return;
let stagedXPIDir = aLocation.getXPIStagingDir();
let stagingDir = aLocation.getStagingDir();
if (stagedXPIDir.exists() && stagedXPIDir.isDirectory()) {
let entries = stagedXPIDir.directoryEntries
.QueryInterface(Ci.nsIDirectoryEnumerator);
while (entries.hasMoreElements()) {
let stageDirEntry = entries.nextFile;
if (!stageDirEntry.isDirectory()) {
WARN("Ignoring file in XPI staging directory: " + stageDirEntry.path);
continue;
}
// Find the last added XPI file in the directory
let stagedXPI = null;
var xpiEntries = stageDirEntry.directoryEntries
.QueryInterface(Ci.nsIDirectoryEnumerator);
while (xpiEntries.hasMoreElements()) {
let file = xpiEntries.nextFile;
if (!(file instanceof Ci.nsILocalFile))
continue;
if (file.isDirectory())
continue;
let extension = file.leafName;
extension = extension.substring(extension.length - 4);
if (extension != ".xpi" && extension != ".jar")
continue;
stagedXPI = file;
}
xpiEntries.close();
if (!stagedXPI)
continue;
let addon = null;
try {
addon = loadManifestFromZipFile(stagedXPI);
}
catch (e) {
ERROR("Unable to read add-on manifest for " + stagedXPI.leafName +
" in XPI stage of " + aLocation.name, e);
continue;
}
LOG("Migrating staged install of " + addon.id + " in " + aLocation.name);
if (addon.unpack || Prefs.getBoolPref(PREF_XPI_UNPACK, false)) {
let targetDir = stagingDir.clone();
targetDir.append(addon.id);
try {
targetDir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
}
catch (e) {
ERROR("Failed to create staging directory for add-on " + id, e);
continue;
}
try {
extractFiles(stagedXPI, targetDir);
}
catch (e) {
ERROR("Failed to extract staged XPI for add-on " + id + " in " +
aLocation.name, e);
}
}
else {
try {
stagedXPI.moveTo(stagingDir, addon.id + ".xpi");
}
catch (e) {
ERROR("Failed to move staged XPI for add-on " + id + " in " +
aLocation.name, e);
}
}
}
entries.close();
}
if (stagedXPIDir.exists()) {
try {
recursiveRemove(stagedXPIDir);
}
catch (e) {
// Non-critical, just saves some perf on startup if we clean this up.
LOG("Error removing XPI staging dir " + stagedXPIDir.path, e);
}
}
if (!stagingDir || !stagingDir.exists() || !stagingDir.isDirectory())
return;
entries = stagingDir.directoryEntries
.QueryInterface(Ci.nsIDirectoryEnumerator);
while (entries.hasMoreElements()) {
let stageDirEntry = entries.getNext().QueryInterface(Ci.nsILocalFile);
let id = stageDirEntry.leafName;
if (!stageDirEntry.isDirectory()) {
if (id.substring(id.length - 4).toLowerCase() == ".xpi") {
id = id.substring(0, id.length - 4);
}
else {
if (id.substring(id.length - 5).toLowerCase() != ".json")
WARN("Ignoring file: " + stageDirEntry.path);
continue;
}
}
// Check that the directory's name is a valid ID.
if (!gIDTest.test(id)) {
WARN("Ignoring directory whose name is not a valid add-on ID: " +
stageDirEntry.path);
continue;
}
changed = true;
if (stageDirEntry.isDirectory()) {
// Check if the directory contains an install manifest.
let manifest = stageDirEntry.clone();
manifest.append(FILE_INSTALL_MANIFEST);
// If the install manifest doesn't exist uninstall this add-on in this
// install location.
if (!manifest.exists()) {
LOG("Processing uninstall of " + id + " in " + aLocation.name);
try {
aLocation.uninstallAddon(id);
}
catch (e) {
ERROR("Failed to uninstall add-on " + id + " in " + aLocation.name, e);
}
// The file check later will spot the removal and cleanup the database
continue;
}
}
aManifests[aLocation.name][id] = null;
let existingAddonID = null;
// Check for a cached AddonInternal for this add-on, it may contain
// updated compatibility information
let jsonfile = stagingDir.clone();
jsonfile.append(id + ".json");
if (jsonfile.exists()) {
LOG("Found updated manifest for " + id + " in " + aLocation.name);
let fis = Cc["@mozilla.org/network/file-input-stream;1"].
createInstance(Ci.nsIFileInputStream);
let json = Cc["@mozilla.org/dom/json;1"].
createInstance(Ci.nsIJSON);
try {
fis.init(jsonfile, -1, 0, 0);
aManifests[aLocation.name][id] = json.decodeFromStream(fis,
jsonfile.fileSize);
existingAddonID = aManifests[aLocation.name][id].existingAddonID;
}
catch (e) {
ERROR("Unable to read add-on manifest for " + id + " in " +
aLocation.name, e);
}
finally {
fis.close();
}
}
LOG("Processing install of " + id + " in " + aLocation.name);
try {
var addonInstallLocation = aLocation.installAddon(id, stageDirEntry,
existingAddonID);
if (aManifests[aLocation.name][id])
aManifests[aLocation.name][id]._sourceBundle = addonInstallLocation;
}
catch (e) {
ERROR("Failed to install staged add-on " + id + " in " + aLocation.name,
e);
delete aManifests[aLocation.name][id];
continue;
}
}
entries.close();
try {
recursiveRemove(stagingDir);
}
catch (e) {
// Non-critical, just saves some perf on startup if we clean this up.
LOG("Error removing staging dir " + stagingDir.path, e);
}
});
return changed;
},
/**
* Installs any add-ons located in the extensions directory of the
* application's distribution specific directory into the profile unless a
* newer version already exists or the user has previously uninstalled the
* distributed add-on.
*
* @param aManifests
* A dictionary to add new install manifests to to save having to
* reload them later
* @return true if any new add-ons were installed
*/
installDistributionAddons: function XPI_installDistributionAddons(aManifests) {
let distroDir;
try {
distroDir = FileUtils.getDir(KEY_APP_DISTRIBUTION, [DIR_EXTENSIONS]);
}
catch (e) {
return false;
}
if (!distroDir.exists())
return false;
if (!distroDir.isDirectory())
return false;
let changed = false;
let profileLocation = this.installLocationsByName[KEY_APP_PROFILE];
let entries = distroDir.directoryEntries
.QueryInterface(Ci.nsIDirectoryEnumerator);
let entry;
while (entry = entries.nextFile) {
// Should never happen really
if (!(entry instanceof Ci.nsILocalFile))
continue;
let id = entry.leafName;
if (entry.isFile()) {
if (id.substring(id.length - 4).toLowerCase() == ".xpi") {
id = id.substring(0, id.length - 4);
}
else {
LOG("Ignoring distribution add-on that isn't an XPI: " + entry.path);
continue;
}
}
else if (!entry.isDirectory()) {
LOG("Ignoring distribution add-on that isn't a file or directory: " +
entry.path);
continue;
}
if (!gIDTest.test(id)) {
LOG("Ignoring distribution add-on whose name is not a valid add-on ID: " +
entry.path);
continue;
}
let addon;
try {
addon = loadManifestFromFile(entry);
}
catch (e) {
WARN("File entry " + entry.path + " contains an invalid add-on", e);
continue;
}
if (addon.id != id) {
WARN("File entry " + entry.path + " contains an add-on with an " +
"incorrect ID")
continue;
}
let existingEntry = null;
try {
existingEntry = profileLocation.getLocationForID(id);
}
catch (e) {
}
if (existingEntry) {
let existingAddon;
try {
existingAddon = loadManifestFromFile(existingEntry);
if (Services.vc.compare(addon.version, existingAddon.version) <= 0)
continue;
}
catch (e) {
// Bad add-on in the profile so just proceed and install over the top
WARN("Profile contains an add-on with a bad or missing install " +
"manifest at " + existingEntry.path + ", overwriting", e);
}
}
else if (Prefs.getBoolPref(PREF_BRANCH_INSTALLED_ADDON + id, false)) {
continue;
}
// Install the add-on
try {
profileLocation.installAddon(id, entry, null, true);
LOG("Installed distribution add-on " + id);
Services.prefs.setBoolPref(PREF_BRANCH_INSTALLED_ADDON + id, true)
// aManifests may contain a copy of a newly installed add-on's manifest
// and we'll have overwritten that so instead cache our install manifest
// which will later be put into the database in processFileChanges
if (!(KEY_APP_PROFILE in aManifests))
aManifests[KEY_APP_PROFILE] = {};
aManifests[KEY_APP_PROFILE][id] = addon;
changed = true;
}
catch (e) {
ERROR("Failed to install distribution add-on " + entry.path, e);
}
}
entries.close();
return changed;
},
/**
* Compares the add-ons that are currently installed to those that were
* known to be installed when the application last ran and applies any
* changes found to the database. Also sends "startupcache-invalidate" signal to
* observerservice if it detects that data may have changed.
*
* @param aState
* The array of current install location states
* @param aManifests
* A dictionary of cached AddonInstalls for add-ons that have been
* installed
* @param aUpdateCompatibility
* true to update add-ons appDisabled property when the application
* version has changed
* @param aMigrateData
* an object generated from a previous version of the database
* holding information about what add-ons were previously userDisabled
* and updated compatibility information if present
* @param aActiveBundles
* When performing recovery after startup this will be an array of
* persistent descriptors of add-ons that are known to be active,
* otherwise it will be null
* @return true if a change requiring a restart was detected
*/
processFileChanges: function XPI_processFileChanges(aState, aManifests,
aUpdateCompatibility,
aMigrateData,
aActiveBundles) {
let visibleAddons = {};
let oldBootstrappedAddons = this.bootstrappedAddons;
this.bootstrappedAddons = {};
/**
* Updates an add-on's metadata and determines if a restart of the
* application is necessary. This is called when either the add-on's
* install directory path or last modified time has changed.
*
* @param aInstallLocation
* The install location containing the add-on
* @param aOldAddon
* The AddonInternal as it appeared the last time the application
* ran
* @param aAddonState
* The new state of the add-on
* @return true if restarting the application is required to complete
* changing this add-on
*/
function updateMetadata(aInstallLocation, aOldAddon, aAddonState) {
LOG("Add-on " + aOldAddon.id + " modified in " + aInstallLocation.name);
// Check if there is an updated install manifest for this add-on
let newAddon = aManifests[aInstallLocation.name][aOldAddon.id];
try {
// If not load it
if (!newAddon) {
let file = aInstallLocation.getLocationForID(aOldAddon.id);
newAddon = loadManifestFromFile(file);
// Carry over the userDisabled setting for add-ons that just appeared
newAddon.userDisabled = aOldAddon.userDisabled;
}
// The ID in the manifest that was loaded must match the ID of the old
// add-on.
if (newAddon.id != aOldAddon.id)
throw new Error("Incorrect id in install manifest");
}
catch (e) {
WARN("Add-on is invalid", e);
XPIDatabase.removeAddonMetadata(aOldAddon);
if (!aInstallLocation.locked)
aInstallLocation.uninstallAddon(aOldAddon.id);
else
WARN("Could not uninstall invalid item from locked install location");
// If this was an active add-on then we must force a restart
if (aOldAddon.active)
return true;
return false;
}
// Set the additional properties on the new AddonInternal
newAddon._installLocation = aInstallLocation;
newAddon.updateDate = aAddonState.mtime;
newAddon.visible = !(newAddon.id in visibleAddons);
// Update the database
XPIDatabase.updateAddonMetadata(aOldAddon, newAddon, aAddonState.descriptor);
if (newAddon.visible) {
visibleAddons[newAddon.id] = newAddon;
// If the new add-on is bootstrapped and active then call its install method
if (newAddon.active && newAddon.bootstrap) {
let installReason = Services.vc.compare(aOldAddon.version, newAddon.version) < 0 ?
BOOTSTRAP_REASONS.ADDON_UPGRADE :
BOOTSTRAP_REASONS.ADDON_DOWNGRADE;
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.persistentDescriptor = aAddonState.descriptor;
XPIProvider.callBootstrapMethod(newAddon.id, newAddon.version, file,
"install", installReason);
return false;
}
// Otherwise the caches will need to be invalidated
return true;
}
return false;
}
/**
* Called when no change has been detected for an add-on's metadata. The
* add-on may have become visible due to other add-ons being removed or
* the add-on may need to be updated when the application version has
* changed.
*
* @param aInstallLocation
* The install location containing the add-on
* @param aOldAddon
* The AddonInternal as it appeared the last time the application
* ran
* @param aAddonState
* The new state of the add-on
* @return a boolean indicating if restarting the application is required
* to complete changing this add-on
*/
function updateVisibilityAndCompatibility(aInstallLocation, aOldAddon,
aAddonState) {
let changed = false;
// This add-ons metadata has not changed but it may have become visible
if (!(aOldAddon.id in visibleAddons)) {
visibleAddons[aOldAddon.id] = aOldAddon;
if (!aOldAddon.visible) {
XPIDatabase.makeAddonVisible(aOldAddon);
if (aOldAddon.bootstrap) {
// The add-on is bootstrappable so call its install script
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.persistentDescriptor = aAddonState.descriptor;
XPIProvider.callBootstrapMethod(aOldAddon.id, aOldAddon.version, file,
"install",
BOOTSTRAP_REASONS.ADDON_INSTALL);
// If it should be active then mark it as active otherwise unload
// its scope
if (!aOldAddon.appDisabled && !aOldAddon.userDisabled) {
aOldAddon.active = true;
XPIDatabase.updateAddonActive(aOldAddon);
}
else {
XPIProvider.unloadBootstrapScope(newAddon.id);
}
}
else {
// Otherwise a restart is necessary
changed = true;
}
}
}
// App version changed, we may need to update the appDisabled property.
if (aUpdateCompatibility) {
let appDisabled = !isUsableAddon(aOldAddon);
let userDisabled = aOldAddon.userDisabled;
// Sync the userDisabled flag to the selectedSkin
if (aOldAddon.type == "theme")
userDisabled = aOldAddon.internalName != XPIProvider.selectedSkin;
let wasDisabled = aOldAddon.appDisabled || aOldAddon.userDisabled;
let isDisabled = appDisabled || userDisabled;
// Remember add-ons that became appDisabled by the application change
if (aOldAddon.visible && appDisabled && !aOldAddon.appDisabled)
XPIProvider.startupChanges.appDisabled.push(aOldAddon.id);
// If either property has changed update the database.
if (appDisabled != aOldAddon.appDisabled ||
userDisabled != aOldAddon.userDisabled) {
LOG("Add-on " + aOldAddon.id + " changed appDisabled state to " +
appDisabled + " and userDisabled state to " + userDisabled);
XPIDatabase.setAddonProperties(aOldAddon, {
appDisabled: appDisabled,
userDisabled: userDisabled
});
}
// If this is a visible add-on and it has changed disabled state then we
// may need a restart or to update the bootstrap list.
if (aOldAddon.visible && wasDisabled != isDisabled) {
if (aOldAddon.bootstrap) {
// Update the add-ons active state
aOldAddon.active = !isDisabled;
XPIDatabase.updateAddonActive(aOldAddon);
}
else {
changed = true;
}
}
}
if (aOldAddon.visible && aOldAddon.active && aOldAddon.bootstrap) {
XPIProvider.bootstrappedAddons[aOldAddon.id] = {
version: aOldAddon.version,
descriptor: aAddonState.descriptor
};
}
return changed;
}
/**
* Called when an add-on has been removed.
*
* @param aInstallLocation
* The install location containing the add-on
* @param aOldAddon
* The AddonInternal as it appeared the last time the application
* ran
* @return a boolean indicating if restarting the application is required
* to complete changing this add-on
*/
function removeMetadata(aInstallLocation, aOldAddon) {
// This add-on has disappeared
LOG("Add-on " + aOldAddon.id + " removed from " + aInstallLocation.name);
XPIDatabase.removeAddonMetadata(aOldAddon);
if (aOldAddon.active) {
// Enable the default theme if the previously active theme has been
// removed
if (aOldAddon.type == "theme")
XPIProvider.enableDefaultTheme();
// If this was not a bootstrapped add-on then we must force a restart.
if (!aOldAddon.bootstrap)
return true;
}
return false;
}
/**
* Called when a new add-on has been detected.
*
* @param aInstallLocation
* The install location containing the add-on
* @param aId
* The ID of the add-on
* @param aAddonState
* The new state of the add-on
* @param aMigrateData
* If during startup the database had to be upgraded this will
* contain data that used to be held about this add-on
* @return a boolean indicating if restarting the application is required
* to complete changing this add-on
*/
function addMetadata(aInstallLocation, aId, aAddonState, aMigrateData) {
LOG("New add-on " + aId + " installed in " + aInstallLocation.name);
let newAddon = null;
// Check the updated manifests lists for the install location, If there
// is no manifest for the add-on ID then newAddon will be undefined
if (aInstallLocation.name in aManifests)
newAddon = aManifests[aInstallLocation.name][aId];
try {
// Otherwise load the manifest from the add-on
if (!newAddon) {
let file = aInstallLocation.getLocationForID(aId);
newAddon = loadManifestFromFile(file);
}
// The add-on in the manifest should match the add-on ID.
if (newAddon.id != aId)
throw new Error("Incorrect id in install manifest");
}
catch (e) {
WARN("Add-on is invalid", e);
// Remove the invalid add-on from the install location if the install
// location isn't locked, no restart will be necessary
if (!aInstallLocation.locked)
aInstallLocation.uninstallAddon(aId);
else
WARN("Could not uninstall invalid item from locked install location");
return false;
}
// Update the AddonInternal properties.
newAddon._installLocation = aInstallLocation;
newAddon.visible = !(newAddon.id in visibleAddons);
newAddon.installDate = aAddonState.mtime;
newAddon.updateDate = aAddonState.mtime;
// If there is migration data then apply it.
if (aMigrateData) {
// A theme's disabled state is determined by the selected theme
// preference which is read in loadManifestFromRDF
if (newAddon.type != "theme")
newAddon.userDisabled = aMigrateData.userDisabled;
if ("installDate" in aMigrateData)
newAddon.installDate = aMigrateData.installDate;
// Some properties should only be migrated if the add-on hasn't changed.
// The version property isn't a perfect check for this but covers the
// vast majority of cases.
if (aMigrateData.version == newAddon.version) {
if ("targetApplications" in aMigrateData)
newAddon.applyCompatibilityUpdate(aMigrateData, true);
}
}
// If we have a list of what add-ons should be marked as active then use it
if (aActiveBundles) {
// For themes we know which is active by the current skin setting
if (newAddon.type == "theme")
newAddon.active = newAddon.internalName == XPIProvider.currentSkin;
else
newAddon.active = aActiveBundles.indexOf(aAddonState.descriptor) != -1;
// If the add-on isn't active and it isn't appDisabled then it is
// probably userDisabled
if (!newAddon.active && newAddon.visible && !newAddon.appDisabled)
newAddon.userDisabled = true;
}
else {
newAddon.active = (newAddon.visible && !newAddon.userDisabled &&
!newAddon.appDisabled)
}
try {
// Update the database.
XPIDatabase.addAddonMetadata(newAddon, aAddonState.descriptor);
}
catch (e) {
// Failing to write the add-on into the database is non-fatal, the
// add-on will just be unavailable until we try again in a subsequent
// startup
ERROR("Failed to add add-on " + aId + " in " + aInstallLocation.name +
" to database", e);
return false;
}
if (newAddon.visible) {
// Note if any visible add-on is not in the application install location
if (newAddon._installLocation.name != KEY_APP_GLOBAL)
XPIProvider.allAppGlobal = false;
visibleAddons[newAddon.id] = newAddon;
let installReason = BOOTSTRAP_REASONS.ADDON_INSTALL;
// If we're hiding a bootstrapped add-on then call its uninstall method
if (newAddon.id in oldBootstrappedAddons) {
let oldBootstrap = oldBootstrappedAddons[newAddon.id];
XPIProvider.bootstrappedAddons[newAddon.id] = oldBootstrap;
installReason = Services.vc.compare(oldBootstrap.version, newAddon.version) < 0 ?
BOOTSTRAP_REASONS.ADDON_UPGRADE :
BOOTSTRAP_REASONS.ADDON_DOWNGRADE;
let oldAddonFile = Cc["@mozilla.org/file/local;1"].
createInstance(Ci.nsILocalFile);
oldAddonFile.persistentDescriptor = oldBootstrap.descriptor;
XPIProvider.callBootstrapMethod(newAddon.id, oldBootstrap.version,
oldAddonFile, "uninstall",
installReason);
XPIProvider.unloadBootstrapScope(newAddon.id);
}
if (!newAddon.bootstrap)
return true;
// Visible bootstrapped add-ons need to have their install method called
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.persistentDescriptor = aAddonState.descriptor;
XPIProvider.callBootstrapMethod(newAddon.id, newAddon.version, file,
"install", installReason);
if (!newAddon.active)
XPIProvider.unloadBootstrapScope(newAddon.id);
}
return false;
}
let changed = false;
let knownLocations = XPIDatabase.getInstallLocations();
// The install locations are iterated in reverse order of priority so when
// there are multiple add-ons installed with the same ID the one that
// should be visible is the first one encountered.
aState.reverse().forEach(function(aSt) {
// We can't include the install location directly in the state as it has
// to be cached as JSON.
let installLocation = this.installLocationsByName[aSt.name];
let addonStates = aSt.addons;
// Check if the database knows about any add-ons in this install location.
let pos = knownLocations.indexOf(installLocation.name);
if (pos >= 0) {
knownLocations.splice(pos, 1);
let addons = XPIDatabase.getAddonsInLocation(installLocation.name);
// Iterate through the add-ons installed the last time the application
// ran
addons.forEach(function(aOldAddon) {
// Check if the add-on is still installed
if (aOldAddon.id in addonStates) {
let addonState = addonStates[aOldAddon.id];
delete addonStates[aOldAddon.id];
// Remember add-ons that were inactive during startup
if (aOldAddon.visible && !aOldAddon.active)
XPIProvider.inactiveAddonIDs.push(aOldAddon.id);
// The add-on has changed if the modification time has changed, or
// the directory it is installed in has changed or we have an
// updated manifest for it. Also reload the metadata for add-ons
// in the application directory when the application version has
// changed
if (aOldAddon.id in aManifests[installLocation.name] ||
aOldAddon.updateDate != addonState.mtime ||
aOldAddon._descriptor != addonState.descriptor ||
(aUpdateCompatibility && installLocation.name == KEY_APP_GLOBAL)) {
changed = updateMetadata(installLocation, aOldAddon, addonState) ||
changed;
}
else {
changed = updateVisibilityAndCompatibility(installLocation,
aOldAddon, addonState) ||
changed;
}
if (aOldAddon.visible && aOldAddon._installLocation.name != KEY_APP_GLOBAL)
XPIProvider.allAppGlobal = false;
}
else {
changed = removeMetadata(installLocation, aOldAddon) || changed;
}
}, this);
}
// All the remaining add-ons in this install location must be new.
// Get the migration data for this install location.
let locMigrateData = {};
if (aMigrateData && installLocation.name in aMigrateData)
locMigrateData = aMigrateData[installLocation.name];
for (let id in addonStates) {
changed = addMetadata(installLocation, id, addonStates[id],
locMigrateData[id]) || changed;
}
}, this);
// The remaining locations that had add-ons installed in them no longer
// have any add-ons installed in them, or the locations no longer exist.
// The metadata for the add-ons that were in them must be removed from the
// database.
knownLocations.forEach(function(aLocation) {
let addons = XPIDatabase.getAddonsInLocation(aLocation);
addons.forEach(function(aOldAddon) {
changed = removeMetadata(aLocation, aOldAddon) || changed;
}, this);
}, this);
// Cache the new install location states
cache = JSON.stringify(this.getInstallLocationStates());
Services.prefs.setCharPref(PREF_INSTALL_CACHE, cache);
return changed;
},
/**
* Imports the xpinstall permissions from preferences into the permissions
* manager for the user to change later.
*/
importPermissions: function XPI_importPermissions() {
function importList(aPrefBranch, aAction) {
let list = Services.prefs.getChildList(aPrefBranch, {});
list.forEach(function(aPref) {
let hosts = Prefs.getCharPref(aPref, "");
if (!hosts)
return;
hosts.split(",").forEach(function(aHost) {
Services.perms.add(NetUtil.newURI("http://" + aHost), XPI_PERMISSION,
aAction);
});
Services.prefs.setCharPref(aPref, "");
});
}
importList(PREF_XPI_WHITELIST_PERMISSIONS,
Ci.nsIPermissionManager.ALLOW_ACTION);
importList(PREF_XPI_BLACKLIST_PERMISSIONS,
Ci.nsIPermissionManager.DENY_ACTION);
},
/**
* Checks for any changes that have occurred since the last time the
* application was launched.
*
* @param aAppChanged
* A tri-state value. Undefined means the current profile was created
* for this session, true means the profile already existed but was
* last used with an application with a different version number,
* false means that the profile was last used by this version of the
* application.
* @return true if a change requiring a restart was detected
*/
checkForChanges: function XPI_checkForChanges(aAppChanged) {
LOG("checkForChanges");
// Import the website installation permissions if the application has changed
if (aAppChanged !== false)
this.importPermissions();
// If the application version has changed then the database information
// needs to be updated
let updateDatabase = aAppChanged;
// First install any new add-ons into the locations, if there are any
// changes then we must update the database with the information in the
// install locations
let manifests = {};
updateDatabase = this.processPendingFileChanges(manifests) | updateDatabase;
// This will be true if the previous session made changes that affect the
// active state of add-ons but didn't commit them properly (normally due
// to the application crashing)
let hasPendingChanges = Prefs.getBoolPref(PREF_PENDING_OPERATIONS);
// If the schema appears to have changed then we should update the database
updateDatabase |= DB_SCHEMA != Prefs.getIntPref(PREF_DB_SCHEMA, 0);
// If the application has changed then check for new distribution add-ons
if (aAppChanged !== false &&
Prefs.getBoolPref(PREF_INSTALL_DISTRO_ADDONS, true))
updateDatabase = this.installDistributionAddons(manifests) | updateDatabase;
// Load the list of bootstrapped add-ons first so processFileChanges can
// modify it
this.bootstrappedAddons = JSON.parse(Prefs.getCharPref(PREF_BOOTSTRAP_ADDONS,
"{}"));
let state = this.getInstallLocationStates();
// If the database exists then the previous file cache can be trusted
// otherwise the database needs to be recreated
let dbFile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_DATABASE], true);
updateDatabase |= !dbFile.exists();
if (!updateDatabase) {
// If the state has changed then we must update the database
let cache = Prefs.getCharPref(PREF_INSTALL_CACHE, null);
updateDatabase |= cache != JSON.stringify(state);
}
if (!updateDatabase) {
let bootstrapDescriptors = [this.bootstrappedAddons[b].descriptor
for (b in this.bootstrappedAddons)];
state.forEach(function(aInstallLocationState) {
for (let id in aInstallLocationState.addons) {
let pos = bootstrapDescriptors.indexOf(aInstallLocationState.addons[id].descriptor);
if (pos != -1)
bootstrapDescriptors.splice(pos, 1);
}
});
if (bootstrapDescriptors.length > 0) {
WARN("Bootstrap state is invalid (missing add-ons: " + bootstrapDescriptors.toSource() + ")");
updateDatabase = true;
}
}
// Catch any errors during the main startup and rollback the database changes
XPIDatabase.beginTransaction();
try {
let extensionListChanged = false;
// If the database needs to be updated then open it and then update it
// from the filesystem
if (updateDatabase || hasPendingChanges) {
let migrateData = XPIDatabase.openConnection(false);
try {
extensionListChanged = this.processFileChanges(state, manifests,
aAppChanged,
migrateData, null);
}
catch (e) {
ERROR("Error processing file changes", e);
}
}
if (aAppChanged) {
// When upgrading the app and using a custom skin make sure it is still
// compatible otherwise switch back the default
if (this.currentSkin != this.defaultSkin) {
let oldSkin = XPIDatabase.getVisibleAddonForInternalName(this.currentSkin);
if (!oldSkin || oldSkin.appDisabled)
this.enableDefaultTheme();
}
// When upgrading remove the old extensions cache to force older
// versions to rescan the entire list of extensions
let oldCache = FileUtils.getFile(KEY_PROFILEDIR, [FILE_OLD_CACHE], true);
if (oldCache.exists())
oldCache.remove(true);
}
// If the application crashed before completing any pending operations then
// we should perform them now.
if (extensionListChanged || hasPendingChanges) {
LOG("Updating database with changes to installed add-ons");
XPIDatabase.updateActiveAddons();
XPIDatabase.commitTransaction();
XPIDatabase.writeAddonsList();
Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, false);
Services.prefs.setCharPref(PREF_BOOTSTRAP_ADDONS,
JSON.stringify(this.bootstrappedAddons));
return true;
}
LOG("No changes found");
XPIDatabase.commitTransaction();
}
catch (e) {
ERROR("Error during startup file checks, rolling back any database " +
"changes", e);
XPIDatabase.rollbackTransaction();
}
// Check that the add-ons list still exists
let addonsList = FileUtils.getFile(KEY_PROFILEDIR, [FILE_XPI_ADDONS_LIST],
true);
if (!addonsList.exists()) {
LOG("Add-ons list is missing, recreating");
XPIDatabase.writeAddonsList();
}
return false;
},
/**
* Called to test whether this provider supports installing a particular
* mimetype.
*
* @param aMimetype
* The mimetype to check for
* @return true if the mimetype is application/x-xpinstall
*/
supportsMimetype: function XPI_supportsMimetype(aMimetype) {
return aMimetype == "application/x-xpinstall";
},
/**
* Called to test whether installing XPI add-ons is enabled.
*
* @return true if installing is enabled
*/
isInstallEnabled: function XPI_isInstallEnabled() {
// Default to enabled if the preference does not exist
return Prefs.getBoolPref(PREF_XPI_ENABLED, true);
},
/**
* Called to test whether installing XPI add-ons from a URI is allowed.
*
* @param aUri
* The URI being installed from
* @return true if installing is allowed
*/
isInstallAllowed: function XPI_isInstallAllowed(aUri) {
if (!this.isInstallEnabled())
return false;
if (!aUri)
return true;
// file: and chrome: don't need whitelisted hosts
if (aUri.schemeIs("chrome") || aUri.schemeIs("file"))
return true;
let permission = Services.perms.testPermission(aUri, XPI_PERMISSION);
if (permission == Ci.nsIPermissionManager.DENY_ACTION)
return false;
let requireWhitelist = Prefs.getBoolPref(PREF_XPI_WHITELIST_REQUIRED, true);
if (requireWhitelist && (permission != Ci.nsIPermissionManager.ALLOW_ACTION))
return false;
return true;
},
/**
* Called to get an AddonInstall to download and install an add-on from a URL.
*
* @param aUrl
* The URL to be installed
* @param aHash
* A hash for the install
* @param aName
* A name for the install
* @param aIconURL
* An icon URL for the install
* @param aVersion
* A version for the install
* @param aLoadGroup
* An nsILoadGroup to associate requests with
* @param aCallback
* A callback to pass the AddonInstall to
*/
getInstallForURL: function XPI_getInstallForURL(aUrl, aHash, aName, aIconURL,
aVersion, aLoadGroup, aCallback) {
AddonInstall.createDownload(function(aInstall) {
aCallback(aInstall.wrapper);
}, aUrl, aHash, aName, aIconURL, aVersion, aLoadGroup);
},
/**
* Called to get an AddonInstall to install an add-on from a local file.
*
* @param aFile
* The file to be installed
* @param aCallback
* A callback to pass the AddonInstall to
*/
getInstallForFile: function XPI_getInstallForFile(aFile, aCallback) {
AddonInstall.createInstall(function(aInstall) {
if (aInstall)
aCallback(aInstall.wrapper);
else
aCallback(null);
}, aFile);
},
/**
* Removes an AddonInstall from the list of active installs.
*
* @param install
* The AddonInstall to remove
*/
removeActiveInstall: function XPI_removeActiveInstall(aInstall) {
this.installs = this.installs.filter(function(i) i != aInstall);
},
/**
* Called to get an Addon with a particular ID.
*
* @param aId
* The ID of the add-on to retrieve
* @param aCallback
* A callback to pass the Addon to
*/
getAddonByID: function XPI_getAddonByID(aId, aCallback) {
XPIDatabase.getVisibleAddonForID(aId, function(aAddon) {
if (aAddon)
aCallback(createWrapper(aAddon));
else
aCallback(null);
});
},
/**
* Called to get Addons of a particular type.
*
* @param aTypes
* An array of types to fetch. Can be null to get all types.
* @param aCallback
* A callback to pass an array of Addons to
*/
getAddonsByTypes: function XPI_getAddonsByTypes(aTypes, aCallback) {
XPIDatabase.getVisibleAddons(aTypes, function(aAddons) {
aCallback([createWrapper(a) for each (a in aAddons)]);
});
},
/**
* Called to get Addons that have pending operations.
*
* @param aTypes
* An array of types to fetch. Can be null to get all types
* @param aCallback
* A callback to pass an array of Addons to
*/
getAddonsWithOperationsByTypes:
function XPI_getAddonsWithOperationsByTypes(aTypes, aCallback) {
XPIDatabase.getVisibleAddonsWithPendingOperations(aTypes, function(aAddons) {
let results = [createWrapper(a) for each (a in aAddons)];
XPIProvider.installs.forEach(function(aInstall) {
if (aInstall.state == AddonManager.STATE_INSTALLED &&
!(aInstall.addon instanceof DBAddonInternal))
results.push(createWrapper(aInstall.addon));
});
aCallback(results);
});
},
/**
* Called to get the current AddonInstalls, optionally limiting to a list of
* types.
*
* @param aTypes
* An array of types or null to get all types
* @param aCallback
* A callback to pass the array of AddonInstalls to
*/
getInstallsByTypes: function XPI_getInstallsByTypes(aTypes, aCallback) {
let results = [];
this.installs.forEach(function(aInstall) {
if (!aTypes || aTypes.indexOf(aInstall.type) >= 0)
results.push(aInstall.wrapper);
});
aCallback(results);
},
/**
* Called when a new add-on has been enabled when only one add-on of that type
* can be enabled.
*
* @param aId
* The ID of the newly enabled add-on
* @param aType
* The type of the newly enabled add-on
* @param aPendingRestart
* true if the newly enabled add-on will only become enabled after a
* restart
*/
addonChanged: function XPI_addonChanged(aId, aType, aPendingRestart) {
// We only care about themes in this provider
if (aType != "theme")
return;
if (!aId) {
// Fallback to the default theme when no theme was enabled
this.enableDefaultTheme();
return;
}
// Look for the previously enabled theme and find the internalName of the
// currently selected theme
let previousTheme = null;
let newSkin = this.defaultSkin;
let addons = XPIDatabase.getAddonsByType("theme");
addons.forEach(function(aTheme) {
if (!aTheme.visible)
return;
if (aTheme.id == aId)
newSkin = aTheme.internalName;
else if (aTheme.userDisabled == false && !aTheme.pendingUninstall)
previousTheme = aTheme;
}, this);
if (aPendingRestart) {
Services.prefs.setBoolPref(PREF_DSS_SWITCHPENDING, true);
Services.prefs.setCharPref(PREF_DSS_SKIN_TO_SELECT, newSkin);
}
else if (newSkin == this.currentSkin) {
try {
Services.prefs.clearUserPref(PREF_DSS_SWITCHPENDING);
}
catch (e) { }
try {
Services.prefs.clearUserPref(PREF_DSS_SKIN_TO_SELECT);
}
catch (e) { }
}
else {
Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN, newSkin);
this.currentSkin = newSkin;
}
this.selectedSkin = newSkin;
// Flush the preferences to disk so they don't get out of sync with the
// database
Services.prefs.savePrefFile(null);
// Mark the previous theme as disabled. This won't cause recursion since
// only enabled calls notifyAddonChanged.
if (previousTheme)
this.updateAddonDisabledState(previousTheme, true);
},
/**
* Update the appDisabled property for all add-ons.
*/
updateAddonAppDisabledStates: function XPI_updateAddonAppDisabledStates() {
let addons = XPIDatabase.getAddons();
addons.forEach(function(aAddon) {
this.updateAddonDisabledState(aAddon);
}, this);
},
/**
* When the previously selected theme is removed this method will be called
* to enable the default theme.
*/
enableDefaultTheme: function XPI_enableDefaultTheme() {
LOG("Activating default theme");
let addon = XPIDatabase.getVisibleAddonForInternalName(this.defaultSkin);
if (addon)
this.updateAddonDisabledState(addon, false);
else
WARN("Unable to activate the default theme");
},
/**
* Notified when a preference we're interested in has changed.
*
* @see nsIObserver
*/
observe: function XPI_observe(aSubject, aTopic, aData) {
switch (aData) {
case this.checkCompatibilityPref:
case PREF_EM_CHECK_UPDATE_SECURITY:
this.checkCompatibility = Prefs.getBoolPref(this.checkCompatibilityPref,
true);
this.checkUpdateSecurity = Prefs.getBoolPref(PREF_EM_CHECK_UPDATE_SECURITY,
true);
this.updateAllAddonDisabledStates();
break;
}
},
/**
* Tests whether enabling an add-on will require a restart.
*
* @param aAddon
* The add-on to test
* @return true if the operation requires a restart
*/
enableRequiresRestart: function XPI_enableRequiresRestart(aAddon) {
// If the platform couldn't have activated extensions then we can make
// changes without any restart.
if (!this.extensionsActive)
return false;
// If the application is in safe mode then any change can be made without
// restarting
if (Services.appinfo.inSafeMode)
return false;
// Anything that is active is already enabled
if (aAddon.active)
return false;
if (aAddon.type == "theme") {
// If dynamic theme switching is enabled then switching themes does not
// require a restart
if (Prefs.getBoolPref(PREF_EM_DSS_ENABLED))
return false;
// If the theme is already the theme in use then no restart is necessary.
// This covers the case where the default theme is in use but a
// lightweight theme is considered active.
return aAddon.internalName != this.currentSkin;
}
return !aAddon.bootstrap;
},
/**
* Tests whether disabling an add-on will require a restart.
*
* @param aAddon
* The add-on to test
* @return true if the operation requires a restart
*/
disableRequiresRestart: function XPI_disableRequiresRestart(aAddon) {
// If the platform couldn't have activated up extensions then we can make
// changes without any restart.
if (!this.extensionsActive)
return false;
// If the application is in safe mode then any change can be made without
// restarting
if (Services.appinfo.inSafeMode)
return false;
// Anything that isn't active is already disabled
if (!aAddon.active)
return false;
if (aAddon.type == "theme") {
// If dynamic theme switching is enabled then switching themes does not
// require a restart
if (Prefs.getBoolPref(PREF_EM_DSS_ENABLED))
return false;
// Non-default themes always require a restart to disable since it will
// be switching from one theme to another or to the default theme and a
// lightweight theme.
if (aAddon.internalName != this.defaultSkin)
return true;
// The default theme requires a restart to disable if we are in the
// process of switching to a different theme. Note that this makes the
// disabled flag of operationsRequiringRestart incorrect for the default
// theme (it will be false most of the time). Bug 520124 would be required
// to fix it. For the UI this isn't a problem since we never try to
// disable or uninstall the default theme.
return this.selectedSkin != this.currentSkin;
}
return !aAddon.bootstrap;
},
/**
* Tests whether installing an add-on will require a restart.
*
* @param aAddon
* The add-on to test
* @return true if the operation requires a restart
*/
installRequiresRestart: function XPI_installRequiresRestart(aAddon) {
// If the platform couldn't have activated up extensions then we can make
// changes without any restart.
if (!this.extensionsActive)
return false;
// If the application is in safe mode then any change can be made without
// restarting
if (Services.appinfo.inSafeMode)
return false;
// Add-ons that are already installed don't require a restart to install.
// This wouldn't normally be called for an already installed add-on (except
// for forming the operationsRequiringRestart flags) so is really here as
// a safety measure.
if (aAddon instanceof DBAddonInternal)
return false;
// If we have an AddonInstall for this add-on then we can see if there is
// an existing installed add-on with the same ID
if ("_install" in aAddon && aAddon._install) {
// If there is an existing installed add-on and uninstalling it would
// require a restart then installing the update will also require a
// restart
let existingAddon = aAddon._install.existingAddon;
if (existingAddon && this.uninstallRequiresRestart(existingAddon))
return true;
}
// If the add-on is not going to be active after installation then it
// doesn't require a restart to install.
if (aAddon.userDisabled || aAddon.appDisabled)
return false;
// Themes will require a restart (even if dynamic switching is enabled due
// to some caching issues) and non-bootstrapped add-ons will require a
// restart
return aAddon.type == "theme" || !aAddon.bootstrap;
},
/**
* Tests whether uninstalling an add-on will require a restart.
*
* @param aAddon
* The add-on to test
* @return true if the operation requires a restart
*/
uninstallRequiresRestart: function XPI_uninstallRequiresRestart(aAddon) {
// If the platform couldn't have activated up extensions then we can make
// changes without any restart.
if (!this.extensionsActive)
return false;
// If the application is in safe mode then any change can be made without
// restarting
if (Services.appinfo.inSafeMode)
return false;
// If the add-on can be disabled without a restart then it can also be
// uninstalled without a restart
return this.disableRequiresRestart(aAddon);
},
/**
* Loads a bootstrapped add-on's bootstrap.js into a sandbox and the reason
* values as constants in the scope. This will also add information about the
* add-on to the bootstrappedAddons dictionary and notify the crash reporter
* that new add-ons have been loaded.
*
* @param aId
* The add-on's ID
* @param aFile
* The nsILocalFile for the add-on
* @param aVersion
* The add-on's version
* @return a JavaScript scope
*/
loadBootstrapScope: function XPI_loadBootstrapScope(aId, aFile, aVersion) {
LOG("Loading bootstrap scope from " + aFile.path);
// Mark the add-on as active for the crash reporter before loading
this.bootstrappedAddons[aId] = {
version: aVersion,
descriptor: aFile.persistentDescriptor
};
this.addAddonsToCrashReporter();
let principal = Cc["@mozilla.org/systemprincipal;1"].
createInstance(Ci.nsIPrincipal);
this.bootstrapScopes[aId] = new Components.utils.Sandbox(principal);
let bootstrap = aFile.clone();
let name = aFile.leafName;
let spec;
if (!bootstrap.exists()) {
ERROR("Attempted to load bootstrap scope from missing directory " + bootstrap.path);
return;
}
if (bootstrap.isDirectory()) {
bootstrap.append("bootstrap.js");
let uri = Services.io.newFileURI(bootstrap);
spec = uri.spec;
} else {
spec = buildJarURI(bootstrap, "bootstrap.js").spec;
}
if (bootstrap.exists()) {
let loader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
createInstance(Ci.mozIJSSubScriptLoader);
try {
// As we don't want our caller to control the JS version used for the
// bootstrap file, we run loadSubScript within the context of the
// sandbox with the latest JS version set explicitly.
this.bootstrapScopes[aId].__SCRIPT_URI_SPEC__ = spec;
Components.utils.evalInSandbox(
"Components.classes['@mozilla.org/moz/jssubscript-loader;1'] \
.createInstance(Components.interfaces.mozIJSSubScriptLoader) \
.loadSubScript(__SCRIPT_URI_SPEC__);", this.bootstrapScopes[aId], "ECMAv5");
}
catch (e) {
WARN("Error loading bootstrap.js for " + aId, e);
}
// Copy the reason values from the global object into the bootstrap scope.
for (let name in BOOTSTRAP_REASONS)
this.bootstrapScopes[aId][name] = BOOTSTRAP_REASONS[name];
}
else {
WARN("Bootstrap missing for " + aId);
}
},
/**
* Unloads a bootstrap scope by dropping all references to it and then
* updating the list of active add-ons with the crash reporter.
*
* @param aId
* The add-on's ID
*/
unloadBootstrapScope: function XPI_unloadBootstrapScope(aId) {
delete this.bootstrapScopes[aId];
delete this.bootstrappedAddons[aId];
this.addAddonsToCrashReporter();
},
/**
* Calls a bootstrap method for an add-on.
*
* @param aId
* The ID of the add-on
* @param aVersion
* The version of the add-on
* @param aFile
* The nsILocalFile for the add-on
* @param aMethod
* The name of the bootstrap method to call
* @param aReason
* The reason flag to pass to the bootstrap's startup method
*/
callBootstrapMethod: function XPI_callBootstrapMethod(aId, aVersion, aFile,
aMethod, aReason) {
// Never call any bootstrap methods in safe mode
if (Services.appinfo.inSafeMode)
return;
// Load the scope if it hasn't already been loaded
if (!(aId in this.bootstrapScopes))
this.loadBootstrapScope(aId, aFile, aVersion);
if (!(aMethod in this.bootstrapScopes[aId])) {
WARN("Add-on " + aId + " is missing bootstrap method " + aMethod);
return;
}
let params = {
id: aId,
version: aVersion,
installPath: aFile.clone()
};
LOG("Calling bootstrap method " + aMethod + " on " + aId + " version " +
aVersion);
try {
this.bootstrapScopes[aId][aMethod](params, aReason);
}
catch (e) {
WARN("Exception running bootstrap method " + aMethod + " on " +
aId, e);
}
},
/**
* Updates the appDisabled property for all add-ons.
*/
updateAllAddonDisabledStates: function XPI_updateAllAddonDisabledStates() {
let addons = XPIDatabase.getAddons();
addons.forEach(function(aAddon) {
this.updateAddonDisabledState(aAddon);
}, this);
},
/**
* Updates the disabled state for an add-on. Its appDisabled property will be
* calculated and if the add-on is changed appropriate notifications will be
* sent out to the registered AddonListeners.
*
* @param aAddon
* The DBAddonInternal to update
* @param aUserDisabled
* Value for the userDisabled property. If undefined the value will
* not change
* @throws if addon is not a DBAddonInternal
*/
updateAddonDisabledState: function XPI_updateAddonDisabledState(aAddon,
aUserDisabled) {
if (!(aAddon instanceof DBAddonInternal))
throw new Error("Can only update addon states for installed addons.");
if (aUserDisabled === undefined)
aUserDisabled = aAddon.userDisabled;
let appDisabled = !isUsableAddon(aAddon);
// No change means nothing to do here
if (aAddon.userDisabled == aUserDisabled &&
aAddon.appDisabled == appDisabled)
return;
let wasDisabled = aAddon.userDisabled || aAddon.appDisabled;
let isDisabled = aUserDisabled || appDisabled;
// Update the properties in the database
XPIDatabase.setAddonProperties(aAddon, {
userDisabled: aUserDisabled,
appDisabled: appDisabled
});
// If the add-on is not visible or the add-on is not changing state then
// there is no need to do anything else
if (!aAddon.visible || (wasDisabled == isDisabled))
return;
// Flag that active states in the database need to be updated on shutdown
Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
let wrapper = createWrapper(aAddon);
// Have we just gone back to the current state?
if (isDisabled != aAddon.active) {
AddonManagerPrivate.callAddonListeners("onOperationCancelled", wrapper);
}
else {
if (isDisabled) {
var needsRestart = this.disableRequiresRestart(aAddon);
AddonManagerPrivate.callAddonListeners("onDisabling", wrapper,
needsRestart);
}
else {
needsRestart = this.enableRequiresRestart(aAddon);
AddonManagerPrivate.callAddonListeners("onEnabling", wrapper,
needsRestart);
}
if (!needsRestart) {
aAddon.active = !isDisabled;
XPIDatabase.updateAddonActive(aAddon);
if (isDisabled) {
if (aAddon.bootstrap) {
let file = aAddon._installLocation.getLocationForID(aAddon.id);
this.callBootstrapMethod(aAddon.id, aAddon.version, file, "shutdown",
BOOTSTRAP_REASONS.ADDON_DISABLE);
this.unloadBootstrapScope(aAddon.id);
}
AddonManagerPrivate.callAddonListeners("onDisabled", wrapper);
}
else {
if (aAddon.bootstrap) {
let file = aAddon._installLocation.getLocationForID(aAddon.id);
this.callBootstrapMethod(aAddon.id, aAddon.version, file, "startup",
BOOTSTRAP_REASONS.ADDON_ENABLE);
}
AddonManagerPrivate.callAddonListeners("onEnabled", wrapper);
}
}
}
// Notify any other providers that a new theme has been enabled
if (aAddon.type == "theme" && !isDisabled)
AddonManagerPrivate.notifyAddonChanged(aAddon.id, aAddon.type, needsRestart);
},
/**
* Uninstalls an add-on, immediately if possible or marks it as pending
* uninstall if not.
*
* @param aAddon
* The DBAddonInternal to uninstall
* @throws if the addon cannot be uninstalled because it is in an install
* location that does not allow it
*/
uninstallAddon: function XPI_uninstallAddon(aAddon) {
if (!(aAddon instanceof DBAddonInternal))
throw new Error("Can only uninstall installed addons.");
if (aAddon._installLocation.locked)
throw new Error("Cannot uninstall addons from locked install locations");
// Inactive add-ons don't require a restart to uninstall
let requiresRestart = this.uninstallRequiresRestart(aAddon);
if (requiresRestart) {
// We create an empty directory in the staging directory to indicate that
// an uninstall is necessary on next startup.
let stage = aAddon._installLocation.getStagingDir();
stage.append(aAddon.id);
if (!stage.exists())
stage.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
XPIDatabase.setAddonProperties(aAddon, {
pendingUninstall: true
});
Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
}
// If the add-on is not visible then there is no need to notify listeners.
if (!aAddon.visible)
return;
let wrapper = createWrapper(aAddon);
AddonManagerPrivate.callAddonListeners("onUninstalling", wrapper,
requiresRestart);
if (!requiresRestart) {
if (aAddon.bootstrap) {
let file = aAddon._installLocation.getLocationForID(aAddon.id);
if (aAddon.active) {
this.callBootstrapMethod(aAddon.id, aAddon.version, file, "shutdown",
BOOTSTRAP_REASONS.ADDON_UNINSTALL);
}
this.callBootstrapMethod(aAddon.id, aAddon.version, file, "uninstall",
BOOTSTRAP_REASONS.ADDON_UNINSTALL);
this.unloadBootstrapScope(aAddon.id);
}
aAddon._installLocation.uninstallAddon(aAddon.id);
XPIDatabase.removeAddonMetadata(aAddon);
AddonManagerPrivate.callAddonListeners("onUninstalled", wrapper);
// Reveal the highest priority add-on with the same ID
function revealAddon(aAddon) {
XPIDatabase.makeAddonVisible(aAddon);
let wrappedAddon = createWrapper(aAddon);
AddonManagerPrivate.callAddonListeners("onInstalling", wrappedAddon, false);
if (!aAddon.userDisabled && !aAddon.appDisabled &&
!XPIProvider.enableRequiresRestart(aAddon)) {
aAddon.active = true;
XPIDatabase.updateAddonActive(aAddon);
}
if (aAddon.bootstrap) {
let file = aAddon._installLocation.getLocationForID(aAddon.id);
XPIProvider.callBootstrapMethod(aAddon.id, aAddon.version, file,
"install", BOOTSTRAP_REASONS.ADDON_INSTALL);
if (aAddon.active) {
XPIProvider.callBootstrapMethod(aAddon.id, aAddon.version, file,
"startup", BOOTSTRAP_REASONS.ADDON_INSTALL);
}
else {
XPIProvider.unloadBootstrapScope(aAddon.id);
}
}
// We always send onInstalled even if a restart is required to enable
// the revealed add-on
AddonManagerPrivate.callAddonListeners("onInstalled", wrappedAddon);
}
function checkInstallLocation(aPos) {
if (aPos < 0)
return;
let location = XPIProvider.installLocations[aPos];
XPIDatabase.getAddonInLocation(aAddon.id, location.name, function(aNewAddon) {
if (aNewAddon)
revealAddon(aNewAddon);
else
checkInstallLocation(aPos - 1);
})
}
checkInstallLocation(this.installLocations.length - 1);
}
// Notify any other providers that a new theme has been enabled
if (aAddon.type == "theme" && aAddon.active)
AddonManagerPrivate.notifyAddonChanged(null, aAddon.type, requiresRestart);
},
/**
* Cancels the pending uninstall of an add-on.
*
* @param aAddon
* The DBAddonInternal to cancel uninstall for
*/
cancelUninstallAddon: function XPI_cancelUninstallAddon(aAddon) {
if (!(aAddon instanceof DBAddonInternal))
throw new Error("Can only cancel uninstall for installed addons.");
cleanStagingDir(aAddon._installLocation.getStagingDir(), [aAddon.id]);
XPIDatabase.setAddonProperties(aAddon, {
pendingUninstall: false
});
if (!aAddon.visible)
return;
Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
// TODO hide hidden add-ons (bug 557710)
let wrapper = createWrapper(aAddon);
AddonManagerPrivate.callAddonListeners("onOperationCancelled", wrapper);
// Notify any other providers that this theme is now enabled again.
if (aAddon.type == "theme" && aAddon.active)
AddonManagerPrivate.notifyAddonChanged(aAddon.id, aAddon.type, false);
}
};
const FIELDS_ADDON = "internal_id, id, location, version, type, internalName, " +
"updateURL, updateKey, optionsURL, aboutURL, iconURL, " +
"icon64URL, defaultLocale, visible, active, userDisabled, " +
"appDisabled, pendingUninstall, descriptor, installDate, " +
"updateDate, applyBackgroundUpdates, bootstrap, skinnable, " +
"size, sourceURI, releaseNotesURI";
/**
* A helper function to log an SQL error.
*
* @param aError
* The storage error code associated with the error
* @param aErrorString
* An error message
*/
function logSQLError(aError, aErrorString) {
ERROR("SQL error " + aError + ": " + aErrorString);
}
/**
* A helper function to log any errors that occur during async statements.
*
* @param aError
* A mozIStorageError to log
*/
function asyncErrorLogger(aError) {
logSQLError(aError.result, aError.message);
}
/**
* A helper function to execute a statement synchronously and log any error
* that occurs.
*
* @param aStatement
* A mozIStorageStatement to execute
*/
function executeStatement(aStatement) {
try {
aStatement.execute();
}
catch (e) {
logSQLError(XPIDatabase.connection.lastError,
XPIDatabase.connection.lastErrorString);
throw e;
}
}
/**
* A helper function to step a statement synchronously and log any error that
* occurs.
*
* @param aStatement
* A mozIStorageStatement to execute
*/
function stepStatement(aStatement) {
try {
return aStatement.executeStep();
}
catch (e) {
logSQLError(XPIDatabase.connection.lastError,
XPIDatabase.connection.lastErrorString);
throw e;
}
}
/**
* A mozIStorageStatementCallback that will asynchronously build DBAddonInternal
* instances from the results it receives. Once the statement has completed
* executing and all of the metadata for all of the add-ons has been retrieved
* they will be passed as an array to aCallback.
*
* @param aCallback
* A callback function to pass the array of DBAddonInternals to
*/
function AsyncAddonListCallback(aCallback) {
this.callback = aCallback;
this.addons = [];
}
AsyncAddonListCallback.prototype = {
callback: null,
complete: false,
count: 0,
addons: null,
handleResult: function(aResults) {
let row = null;
while (row = aResults.getNextRow()) {
this.count++;
let self = this;
XPIDatabase.makeAddonFromRowAsync(row, function(aAddon) {
function completeAddon(aRepositoryAddon) {
aAddon._repositoryAddon = aRepositoryAddon;
self.addons.push(aAddon);
if (self.complete && self.addons.length == self.count)
self.callback(self.addons);
}
if ("getCachedAddonByID" in AddonRepository)
AddonRepository.getCachedAddonByID(aAddon.id, completeAddon);
else
completeAddon(null);
});
}
},
handleError: asyncErrorLogger,
handleCompletion: function(aReason) {
this.complete = true;
if (this.addons.length == this.count)
this.callback(this.addons);
}
};
var XPIDatabase = {
// true if the database connection has been opened
initialized: false,
// A cache of statements that are used and need to be finalized on shutdown
statementCache: {},
// A cache of weak referenced DBAddonInternals so we can reuse objects where
// possible
addonCache: [],
// The nested transaction count
transactionCount: 0,
// The statements used by the database
statements: {
_getDefaultLocale: "SELECT id, name, description, creator, homepageURL " +
"FROM locale WHERE id=:id",
_getLocales: "SELECT addon_locale.locale, locale.id, locale.name, " +
"locale.description, locale.creator, locale.homepageURL " +
"FROM addon_locale JOIN locale ON " +
"addon_locale.locale_id=locale.id WHERE " +
"addon_internal_id=:internal_id",
_getTargetApplications: "SELECT addon_internal_id, id, minVersion, " +
"maxVersion FROM targetApplication WHERE " +
"addon_internal_id=:internal_id",
_getTargetPlatforms: "SELECT os, abi FROM targetPlatform WHERE " +
"addon_internal_id=:internal_id",
_readLocaleStrings: "SELECT locale_id, type, value FROM locale_strings " +
"WHERE locale_id=:id",
addAddonMetadata_addon: "INSERT INTO addon VALUES (NULL, :id, :location, " +
":version, :type, :internalName, :updateURL, " +
":updateKey, :optionsURL, :aboutURL, :iconURL, " +
":icon64URL, :locale, :visible, :active, " +
":userDisabled, :appDisabled, :pendingUninstall, " +
":descriptor, :installDate, :updateDate, " +
":applyBackgroundUpdates, :bootstrap, :skinnable, " +
":size, :sourceURI, :releaseNotesURI)",
addAddonMetadata_addon_locale: "INSERT INTO addon_locale VALUES " +
"(:internal_id, :name, :locale)",
addAddonMetadata_locale: "INSERT INTO locale (name, description, creator, " +
"homepageURL) VALUES (:name, :description, " +
":creator, :homepageURL)",
addAddonMetadata_strings: "INSERT INTO locale_strings VALUES (:locale, " +
":type, :value)",
addAddonMetadata_targetApplication: "INSERT INTO targetApplication VALUES " +
"(:internal_id, :id, :minVersion, " +
":maxVersion)",
addAddonMetadata_targetPlatform: "INSERT INTO targetPlatform VALUES " +
"(:internal_id, :os, :abi)",
clearVisibleAddons: "UPDATE addon SET visible=0 WHERE id=:id",
updateAddonActive: "UPDATE addon SET active=:active WHERE " +
"internal_id=:internal_id",
getActiveAddons: "SELECT " + FIELDS_ADDON + " FROM addon WHERE active=1 AND " +
"type<>'theme' AND bootstrap=0",
getActiveTheme: "SELECT " + FIELDS_ADDON + " FROM addon WHERE " +
"internalName=:internalName AND type='theme'",
getThemes: "SELECT " + FIELDS_ADDON + " FROM addon WHERE type='theme'",
getAddonInLocation: "SELECT " + FIELDS_ADDON + " FROM addon WHERE id=:id " +
"AND location=:location",
getAddons: "SELECT " + FIELDS_ADDON + " FROM addon",
getAddonsByType: "SELECT " + FIELDS_ADDON + " FROM addon WHERE type=:type",
getAddonsInLocation: "SELECT " + FIELDS_ADDON + " FROM addon WHERE " +
"location=:location",
getInstallLocations: "SELECT DISTINCT location FROM addon",
getVisibleAddonForID: "SELECT " + FIELDS_ADDON + " FROM addon WHERE " +
"visible=1 AND id=:id",
getVisibleAddoForInternalName: "SELECT " + FIELDS_ADDON + " FROM addon " +
"WHERE visible=1 AND internalName=:internalName",
getVisibleAddons: "SELECT " + FIELDS_ADDON + " FROM addon WHERE visible=1",
getVisibleAddonsWithPendingOperations: "SELECT " + FIELDS_ADDON + " FROM " +
"addon WHERE visible=1 " +
"AND (pendingUninstall=1 OR " +
"MAX(userDisabled,appDisabled)=active)",
makeAddonVisible: "UPDATE addon SET visible=1 WHERE internal_id=:internal_id",
removeAddonMetadata: "DELETE FROM addon WHERE internal_id=:internal_id",
// Equates to active = visible && !userDisabled && !appDisabled
setActiveAddons: "UPDATE addon SET active=MIN(visible, 1 - userDisabled, " +
"1 - appDisabled)",
setAddonProperties: "UPDATE addon SET userDisabled=:userDisabled, " +
"appDisabled=:appDisabled, " +
"pendingUninstall=:pendingUninstall, " +
"applyBackgroundUpdates=:applyBackgroundUpdates WHERE " +
"internal_id=:internal_id",
updateTargetApplications: "UPDATE targetApplication SET " +
"minVersion=:minVersion, maxVersion=:maxVersion " +
"WHERE addon_internal_id=:internal_id AND id=:id",
createSavepoint: "SAVEPOINT 'default'",
releaseSavepoint: "RELEASE SAVEPOINT 'default'",
rollbackSavepoint: "ROLLBACK TO SAVEPOINT 'default'"
},
/**
* Begins a new transaction in the database. Transactions may be nested. Data
* written by an inner transaction may be rolled back on its own. Rolling back
* an outer transaction will rollback all the changes made by inner
* transactions even if they were committed. No data is written to the disk
* until the outermost transaction is committed. Transactions can be started
* even when the database is not yet open in which case they will be started
* when the database is first opened.
*/
beginTransaction: function XPIDB_beginTransaction() {
if (this.initialized)
this.getStatement("createSavepoint").execute();
this.transactionCount++;
},
/**
* Commits the most recent transaction. The data may still be rolled back if
* an outer transaction is rolled back.
*/
commitTransaction: function XPIDB_commitTransaction() {
if (this.transactionCount == 0) {
ERROR("Attempt to commit one transaction too many.");
return;
}
if (this.initialized)
this.getStatement("releaseSavepoint").execute();
this.transactionCount--;
},
/**
* Rolls back the most recent transaction. The database will return to its
* state when the transaction was started.
*/
rollbackTransaction: function XPIDB_rollbackTransaction() {
if (this.transactionCount == 0) {
ERROR("Attempt to rollback one transaction too many.");
return;
}
if (this.initialized) {
this.getStatement("rollbackSavepoint").execute();
this.getStatement("releaseSavepoint").execute();
}
this.transactionCount--;
},
/**
* Attempts to open the database file. If it fails it will try to delete the
* existing file and create an empty database. If that fails then it will
* open an in-memory database that can be used during this session.
*
* @param aDBFile
* The nsIFile to open
* @return the mozIStorageConnection for the database
*/
openDatabaseFile: function XPIDB_openDatabaseFile(aDBFile) {
LOG("Opening database");
let connection = null;
// Attempt to open the database
try {
connection = Services.storage.openUnsharedDatabase(aDBFile);
}
catch (e) {
ERROR("Failed to open database (1st attempt)", e);
try {
aDBFile.remove(true);
}
catch (e) {
ERROR("Failed to remove database that could not be opened", e);
}
try {
connection = Services.storage.openUnsharedDatabase(aDBFile);
}
catch (e) {
ERROR("Failed to open database (2nd attempt)", e);
// If we have got here there seems to be no way to open the real
// database, instead open a temporary memory database so things will
// work for this session
return Services.storage.openSpecialDatabase("memory");
}
}
connection.executeSimpleSQL("PRAGMA synchronous = FULL");
connection.executeSimpleSQL("PRAGMA locking_mode = EXCLUSIVE");
return connection;
},
/**
* Opens a new connection to the database file.
*
* @param aRebuildOnError
* A boolean indicating whether add-on information should be loaded
* from the install locations if the database needs to be rebuilt.
* @return the migration data from the database if it was an old schema or
* null otherwise.
*/
openConnection: function XPIDB_openConnection(aRebuildOnError) {
this.initialized = true;
let dbfile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_DATABASE], true);
delete this.connection;
this.connection = this.openDatabaseFile(dbfile);
let migrateData = null;
// If the database was corrupt or missing then the new blank database will
// have a schema version of 0.
let schemaVersion = this.connection.schemaVersion;
if (schemaVersion != DB_SCHEMA) {
// A non-zero schema version means that a schema has been successfully
// created in the database in the past so we might be able to get useful
// information from it
if (schemaVersion != 0) {
LOG("Migrating data from schema " + schemaVersion);
migrateData = this.getMigrateDataFromDatabase();
// Delete the existing database
this.connection.close();
try {
if (dbfile.exists())
dbfile.remove(true);
// Reopen an empty database
this.connection = this.openDatabaseFile(dbfile);
}
catch (e) {
ERROR("Failed to remove old database", e);
// If the file couldn't be deleted then fall back to an in-memory
// database
this.connection = Services.storage.openSpecialDatabase("memory");
}
}
else if (Prefs.getIntPref(PREF_DB_SCHEMA, 0) == 0) {
// Only migrate data from the RDF if we haven't done it before
LOG("Migrating data from extensions.rdf");
migrateData = this.getMigrateDataFromRDF();
}
// At this point the database should be completely empty
this.createSchema();
if (aRebuildOnError) {
let activeBundles = this.getActiveBundles();
WARN("Rebuilding add-ons database from installed extensions.");
this.beginTransaction();
try {
let state = XPIProvider.getInstallLocationStates();
XPIProvider.processFileChanges(state, {}, false, migrateData, activeBundles)
// Make sure to update the active add-ons and add-ons list on shutdown
Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
this.commitTransaction();
}
catch (e) {
ERROR("Error processing file changes", e);
this.rollbackTransaction();
}
}
}
// If the database connection has a file open then it has the right schema
// by now so make sure the preferences reflect that. If not then there is
// an in-memory database open which means a problem opening and deleting the
// real database, clear the schema preference to force trying to load the
// database on the next startup
if (this.connection.databaseFile) {
Services.prefs.setIntPref(PREF_DB_SCHEMA, DB_SCHEMA);
}
else {
try {
Services.prefs.clearUserPref(PREF_DB_SCHEMA);
}
catch (e) {
// The preference may not be defined
}
}
Services.prefs.savePrefFile(null);
// Begin any pending transactions
for (let i = 0; i < this.transactionCount; i++)
this.connection.executeSimpleSQL("SAVEPOINT 'default'");
return migrateData;
},
/**
* A lazy getter for the database connection.
*/
get connection() {
this.openConnection(true);
return this.connection;
},
/**
* Gets the list of file descriptors of active extension directories or XPI
* files from the add-ons list. This must be loaded from disk since the
* directory service gives no easy way to get both directly. This list doesn't
* include themes as preferences already say which theme is currently active
*
* @return an array of persisitent descriptors for the directories
*/
getActiveBundles: function XPIDB_getActiveBundles() {
let bundles = [];
let addonsList = FileUtils.getFile(KEY_PROFILEDIR, [FILE_XPI_ADDONS_LIST],
true);
let iniFactory = Cc["@mozilla.org/xpcom/ini-parser-factory;1"].
getService(Ci.nsIINIParserFactory);
let parser = iniFactory.createINIParser(addonsList);
let keys = parser.getKeys("ExtensionDirs");
while (keys.hasMore())
bundles.push(parser.getString("ExtensionDirs", keys.getNext()));
// Also include the list of active bootstrapped extensions
for (let id in XPIProvider.bootstrappedAddons)
bundles.push(XPIProvider.bootstrappedAddons[id].descriptor);
return bundles;
},
/**
* Retrieves migration data from the old extensions.rdf database.
*
* @return an object holding information about what add-ons were previously
* userDisabled and any updated compatibility information
*/
getMigrateDataFromRDF: function XPIDB_getMigrateDataFromRDF(aDbWasMissing) {
let migrateData = {};
// Migrate data from extensions.rdf
let rdffile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_OLD_DATABASE], true);
if (rdffile.exists()) {
let ds = gRDF.GetDataSourceBlocking(Services.io.newFileURI(rdffile).spec);
let root = Cc["@mozilla.org/rdf/container;1"].
createInstance(Ci.nsIRDFContainer);
root.Init(ds, gRDF.GetResource(RDFURI_ITEM_ROOT));
let elements = root.GetElements();
while (elements.hasMoreElements()) {
let source = elements.getNext().QueryInterface(Ci.nsIRDFResource);
let location = getRDFProperty(ds, source, "installLocation");
if (location) {
if (!(location in migrateData))
migrateData[location] = {};
let id = source.ValueUTF8.substring(PREFIX_ITEM_URI.length);
migrateData[location][id] = {
version: getRDFProperty(ds, source, "version"),
userDisabled: false,
targetApplications: []
}
let disabled = getRDFProperty(ds, source, "userDisabled");
if (disabled == "true" || disabled == "needs-disable")
migrateData[location][id].userDisabled = true;
let targetApps = ds.GetTargets(source, EM_R("targetApplication"),
true);
while (targetApps.hasMoreElements()) {
let targetApp = targetApps.getNext()
.QueryInterface(Ci.nsIRDFResource);
let appInfo = {
id: getRDFProperty(ds, targetApp, "id")
};
let minVersion = getRDFProperty(ds, targetApp, "updatedMinVersion");
if (minVersion) {
appInfo.minVersion = minVersion;
appInfo.maxVersion = getRDFProperty(ds, targetApp, "updatedMaxVersion");
}
else {
appInfo.minVersion = getRDFProperty(ds, targetApp, "minVersion");
appInfo.maxVersion = getRDFProperty(ds, targetApp, "maxVersion");
}
migrateData[location][id].targetApplications.push(appInfo);
}
}
}
}
return migrateData;
},
/**
* Retrieves migration data from a database that has an older or newer schema.
*
* @return an object holding information about what add-ons were previously
* userDisabled and any updated compatibility information
*/
getMigrateDataFromDatabase: function XPIDB_getMigrateDataFromDatabase() {
let migrateData = {};
// Attempt to migrate data from a different (even future!) version of the
// database
try {
var stmt = this.connection.createStatement("SELECT internal_id, id, " +
"location, userDisabled, " +
"installDate, version " +
"FROM addon");
for (let row in resultRows(stmt)) {
if (!(row.location in migrateData))
migrateData[row.location] = {};
migrateData[row.location][row.id] = {
internal_id: row.internal_id,
version: row.version,
installDate: row.installDate,
userDisabled: row.userDisabled == 1,
targetApplications: []
};
}
var taStmt = this.connection.createStatement("SELECT id, minVersion, " +
"maxVersion FROM " +
"targetApplication WHERE " +
"addon_internal_id=:internal_id");
for (let location in migrateData) {
for (let id in migrateData[location]) {
taStmt.params.internal_id = migrateData[location][id].internal_id;
delete migrateData[location][id].internal_id;
for (let row in resultRows(taStmt)) {
migrateData[location][id].targetApplications.push({
id: row.id,
minVersion: row.minVersion,
maxVersion: row.maxVersion
});
}
}
}
}
catch (e) {
// An error here means the schema is too different to read
ERROR("Error migrating data", e);
}
finally {
if (taStmt)
taStmt.finalize();
if (stmt)
stmt.finalize();
}
return migrateData;
},
/**
* Shuts down the database connection and releases all cached objects.
*/
shutdown: function XPIDB_shutdown(aCallback) {
if (this.initialized) {
for each (let stmt in this.statementCache)
stmt.finalize();
this.statementCache = {};
this.addonCache = [];
if (this.transactionCount > 0) {
ERROR(this.transactionCount + " outstanding transactions, rolling back.");
while (this.transactionCount > 0)
this.rollbackTransaction();
}
this.initialized = false;
let connection = this.connection;
delete this.connection;
// Re-create the connection smart getter to allow the database to be
// re-loaded during testing.
this.__defineGetter__("connection", function() {
this.openConnection(true);
return this.connection;
});
connection.asyncClose(aCallback);
}
else {
if (aCallback)
aCallback();
}
},
/**
* Gets a cached statement or creates a new statement if it doesn't already
* exist.
*
* @param key
* A unique key to reference the statement
* @param aSql
* An optional SQL string to use for the query, otherwise a
* predefined sql string for the key will be used.
* @return a mozIStorageStatement for the passed SQL
*/
getStatement: function XPIDB_getStatement(aKey, aSql) {
if (aKey in this.statementCache)
return this.statementCache[aKey];
if (!aSql)
aSql = this.statements[aKey];
try {
return this.statementCache[aKey] = this.connection.createStatement(aSql);
}
catch (e) {
ERROR("Error creating statement " + aKey + " (" + aSql + ")");
throw e;
}
},
/**
* Creates the schema in the database.
*/
createSchema: function XPIDB_createSchema() {
LOG("Creating database schema");
this.beginTransaction();
// Any errors in here should rollback the transaction
try {
this.connection.createTable("addon",
"internal_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
"id TEXT, location TEXT, version TEXT, " +
"type TEXT, internalName TEXT, updateURL TEXT, " +
"updateKey TEXT, optionsURL TEXT, aboutURL TEXT, " +
"iconURL TEXT, icon64URL TEXT, " +
"defaultLocale INTEGER, " +
"visible INTEGER, active INTEGER, " +
"userDisabled INTEGER, appDisabled INTEGER, " +
"pendingUninstall INTEGER, descriptor TEXT, " +
"installDate INTEGER, updateDate INTEGER, " +
"applyBackgroundUpdates INTEGER, " +
"bootstrap INTEGER, skinnable INTEGER, " +
"size INTEGER, sourceURI TEXT, " +
"releaseNotesURI TEXT, UNIQUE (id, location)");
this.connection.createTable("targetApplication",
"addon_internal_id INTEGER, " +
"id TEXT, minVersion TEXT, maxVersion TEXT, " +
"UNIQUE (addon_internal_id, id)");
this.connection.createTable("targetPlatform",
"addon_internal_id INTEGER, " +
"os, abi TEXT, " +
"UNIQUE (addon_internal_id, os, abi)");
this.connection.createTable("addon_locale",
"addon_internal_id INTEGER, "+
"locale TEXT, locale_id INTEGER, " +
"UNIQUE (addon_internal_id, locale)");
this.connection.createTable("locale",
"id INTEGER PRIMARY KEY AUTOINCREMENT, " +
"name TEXT, description TEXT, creator TEXT, " +
"homepageURL TEXT");
this.connection.createTable("locale_strings",
"locale_id INTEGER, type TEXT, value TEXT");
this.connection.executeSimpleSQL("CREATE TRIGGER delete_addon AFTER DELETE " +
"ON addon BEGIN " +
"DELETE FROM targetApplication WHERE addon_internal_id=old.internal_id; " +
"DELETE FROM targetPlatform WHERE addon_internal_id=old.internal_id; " +
"DELETE FROM addon_locale WHERE addon_internal_id=old.internal_id; " +
"DELETE FROM locale WHERE id=old.defaultLocale; " +
"END");
this.connection.executeSimpleSQL("CREATE TRIGGER delete_addon_locale AFTER " +
"DELETE ON addon_locale WHEN NOT EXISTS " +
"(SELECT * FROM addon_locale WHERE locale_id=old.locale_id) BEGIN " +
"DELETE FROM locale WHERE id=old.locale_id; " +
"END");
this.connection.executeSimpleSQL("CREATE TRIGGER delete_locale AFTER " +
"DELETE ON locale BEGIN " +
"DELETE FROM locale_strings WHERE locale_id=old.id; " +
"END");
this.connection.schemaVersion = DB_SCHEMA;
this.commitTransaction();
}
catch (e) {
ERROR("Failed to create database schema", e);
logSQLError(this.connection.lastError, this.connection.lastErrorString);
this.rollbackTransaction();
this.connection.close();
this.connection = null;
throw e;
}
},
/**
* Synchronously reads the multi-value locale strings for a locale
*
* @param aLocale
* The locale object to read into
*/
_readLocaleStrings: function XPIDB__readLocaleStrings(aLocale) {
let stmt = this.getStatement("_readLocaleStrings");
stmt.params.id = aLocale.id;
for (let row in resultRows(stmt)) {
if (!(row.type in aLocale))
aLocale[row.type] = [];
aLocale[row.type].push(row.value);
}
},
/**
* Synchronously reads the locales for an add-on
*
* @param aAddon
* The DBAddonInternal to read the locales for
* @return the array of locales
*/
_getLocales: function XPIDB__getLocales(aAddon) {
let stmt = this.getStatement("_getLocales");
let locales = [];
stmt.params.internal_id = aAddon._internal_id;
for (let row in resultRows(stmt)) {
let locale = {
id: row.id,
locales: [row.locale]
};
copyProperties(row, PROP_LOCALE_SINGLE, locale);
locales.push(locale);
}
locales.forEach(function(aLocale) {
this._readLocaleStrings(aLocale);
}, this);
return locales;
},
/**
* Synchronously reads the default locale for an add-on
*
* @param aAddon
* The DBAddonInternal to read the default locale for
* @return the default locale for the add-on
* @throws if the database does not contain the default locale information
*/
_getDefaultLocale: function XPIDB__getDefaultLocale(aAddon) {
let stmt = this.getStatement("_getDefaultLocale");
stmt.params.id = aAddon._defaultLocale;
if (!stepStatement(stmt))
throw new Error("Missing default locale for " + aAddon.id);
let locale = copyProperties(stmt.row, PROP_LOCALE_SINGLE);
locale.id = aAddon._defaultLocale;
stmt.reset();
this._readLocaleStrings(locale);
return locale;
},
/**
* Synchronously reads the target application entries for an add-on
*
* @param aAddon
* The DBAddonInternal to read the target applications for
* @return an array of target applications
*/
_getTargetApplications: function XPIDB__getTargetApplications(aAddon) {
let stmt = this.getStatement("_getTargetApplications");
stmt.params.internal_id = aAddon._internal_id;
return [copyProperties(row, PROP_TARGETAPP) for each (row in resultRows(stmt))];
},
/**
* Synchronously reads the target platform entries for an add-on
*
* @param aAddon
* The DBAddonInternal to read the target platforms for
* @return an array of target platforms
*/
_getTargetPlatforms: function XPIDB__getTargetPlatforms(aAddon) {
let stmt = this.getStatement("_getTargetPlatforms");
stmt.params.internal_id = aAddon._internal_id;
return [copyProperties(row, ["os", "abi"]) for each (row in resultRows(stmt))];
},
/**
* Synchronously makes a DBAddonInternal from a storage row or returns one
* from the cache.
*
* @param aRow
* The storage row to make the DBAddonInternal from
* @return a DBAddonInternal
*/
makeAddonFromRow: function XPIDB_makeAddonFromRow(aRow) {
if (this.addonCache[aRow.internal_id]) {
let addon = this.addonCache[aRow.internal_id].get();
if (addon)
return addon;
}
let addon = new DBAddonInternal();
addon._internal_id = aRow.internal_id;
addon._installLocation = XPIProvider.installLocationsByName[aRow.location];
addon._descriptor = aRow.descriptor;
addon._defaultLocale = aRow.defaultLocale;
copyProperties(aRow, PROP_METADATA, addon);
copyProperties(aRow, DB_METADATA, addon);
DB_BOOL_METADATA.forEach(function(aProp) {
addon[aProp] = aRow[aProp] != 0;
});
try {
addon._sourceBundle = addon._installLocation.getLocationForID(addon.id);
}
catch (e) {
// An exception will be thrown if the add-on appears in the database but
// not on disk. In general this should only happen during startup as
// this change is being detected.
}
this.addonCache[aRow.internal_id] = Components.utils.getWeakReference(addon);
return addon;
},
/**
* Asynchronously fetches additional metadata for a DBAddonInternal.
*
* @param aAddon
* The DBAddonInternal
* @param aCallback
* The callback to call when the metadata is completely retrieved
*/
fetchAddonMetadata: function XPIDB_fetchAddonMetadata(aAddon) {
function readLocaleStrings(aLocale, aCallback) {
let stmt = XPIDatabase.getStatement("_readLocaleStrings");
stmt.params.id = aLocale.id;
stmt.executeAsync({
handleResult: function(aResults) {
let row = null;
while (row = aResults.getNextRow()) {
let type = row.getResultByName("type");
if (!(type in aLocale))
aLocale[type] = [];
aLocale[type].push(row.getResultByName("value"));
}
},
handleError: asyncErrorLogger,
handleCompletion: function(aReason) {
aCallback();
}
});
}
function readDefaultLocale() {
delete aAddon.defaultLocale;
let stmt = XPIDatabase.getStatement("_getDefaultLocale");
stmt.params.id = aAddon._defaultLocale;
stmt.executeAsync({
handleResult: function(aResults) {
aAddon.defaultLocale = copyRowProperties(aResults.getNextRow(),
PROP_LOCALE_SINGLE);
aAddon.defaultLocale.id = aAddon._defaultLocale;
},
handleError: asyncErrorLogger,
handleCompletion: function(aReason) {
if (aAddon.defaultLocale) {
readLocaleStrings(aAddon.defaultLocale, readLocales);
}
else {
ERROR("Missing default locale for " + aAddon.id);
readLocales();
}
}
});
}
function readLocales() {
delete aAddon.locales;
aAddon.locales = [];
let stmt = XPIDatabase.getStatement("_getLocales");
stmt.params.internal_id = aAddon._internal_id;
stmt.executeAsync({
handleResult: function(aResults) {
let row = null;
while (row = aResults.getNextRow()) {
let locale = {
id: row.getResultByName("id"),
locales: [row.getResultByName("locale")]
};
copyRowProperties(row, PROP_LOCALE_SINGLE, locale);
aAddon.locales.push(locale);
}
},
handleError: asyncErrorLogger,
handleCompletion: function(aReason) {
let pos = 0;
function readNextLocale() {
if (pos < aAddon.locales.length)
readLocaleStrings(aAddon.locales[pos++], readNextLocale);
else
readTargetApplications();
}
readNextLocale();
}
});
}
function readTargetApplications() {
delete aAddon.targetApplications;
aAddon.targetApplications = [];
let stmt = XPIDatabase.getStatement("_getTargetApplications");
stmt.params.internal_id = aAddon._internal_id;
stmt.executeAsync({
handleResult: function(aResults) {
let row = null;
while (row = aResults.getNextRow())
aAddon.targetApplications.push(copyRowProperties(row, PROP_TARGETAPP));
},
handleError: asyncErrorLogger,
handleCompletion: function(aReason) {
readTargetPlatforms();
}
});
}
function readTargetPlatforms() {
delete aAddon.targetPlatforms;
aAddon.targetPlatforms = [];
let stmt = XPIDatabase.getStatement("_getTargetPlatforms");
stmt.params.internal_id = aAddon._internal_id;
stmt.executeAsync({
handleResult: function(aResults) {
let row = null;
while (row = aResults.getNextRow())
aAddon.targetPlatforms.push(copyRowProperties(row, ["os", "abi"]));
},
handleError: asyncErrorLogger,
handleCompletion: function(aReason) {
let callbacks = aAddon._pendingCallbacks;
delete aAddon._pendingCallbacks;
callbacks.forEach(function(aCallback) {
aCallback(aAddon);
});
}
});
}
readDefaultLocale();
},
/**
* Synchronously makes a DBAddonInternal from a mozIStorageRow or returns one
* from the cache.
*
* @param aRow
* The mozIStorageRow to make the DBAddonInternal from
* @return a DBAddonInternal
*/
makeAddonFromRowAsync: function XPIDB_makeAddonFromRowAsync(aRow, aCallback) {
let internal_id = aRow.getResultByName("internal_id");
if (this.addonCache[internal_id]) {
let addon = this.addonCache[internal_id].get();
if (addon) {
// If metadata is still pending for this instance add our callback to
// the list to be called when complete, otherwise pass the addon to
// our callback
if ("_pendingCallbacks" in addon)
addon._pendingCallbacks.push(aCallback);
else
aCallback(addon);
return;
}
}
let addon = new DBAddonInternal();
addon._internal_id = internal_id;
let location = aRow.getResultByName("location");
addon._installLocation = XPIProvider.installLocationsByName[location];
addon._descriptor = aRow.getResultByName("descriptor");
copyRowProperties(aRow, PROP_METADATA, addon);
addon._defaultLocale = aRow.getResultByName("defaultLocale");
copyRowProperties(aRow, DB_METADATA, addon);
DB_BOOL_METADATA.forEach(function(aProp) {
addon[aProp] = aRow.getResultByName(aProp) != 0;
});
try {
addon._sourceBundle = addon._installLocation.getLocationForID(addon.id);
}
catch (e) {
// An exception will be thrown if the add-on appears in the database but
// not on disk. In general this should only happen during startup as
// this change is being detected.
}
this.addonCache[internal_id] = Components.utils.getWeakReference(addon);
addon._pendingCallbacks = [aCallback];
this.fetchAddonMetadata(addon);
},
/**
* Synchronously reads all install locations known about by the database. This
* is often a a subset of the total install locations when not all have
* installed add-ons, occasionally a superset when an install location no
* longer exists.
*
* @return an array of names of install locations
*/
getInstallLocations: function XPIDB_getInstallLocations() {
let stmt = this.getStatement("getInstallLocations");
return [row.location for each (row in resultRows(stmt))];
},
/**
* Synchronously reads all the add-ons in a particular install location.
*
* @param location
* The name of the install location
* @return an array of DBAddonInternals
*/
getAddonsInLocation: function XPIDB_getAddonsInLocation(aLocation) {
let stmt = this.getStatement("getAddonsInLocation");
stmt.params.location = aLocation;
return [this.makeAddonFromRow(row) for each (row in resultRows(stmt))];
},
/**
* Asynchronously gets an add-on with a particular ID in a particular
* install location.
*
* @param aId
* The ID of the add-on to retrieve
* @param aLocation
* The name of the install location
* @param aCallback
* A callback to pass the DBAddonInternal to
*/
getAddonInLocation: function XPIDB_getAddonInLocation(aId, aLocation, aCallback) {
let stmt = this.getStatement("getAddonInLocation");
stmt.params.id = aId;
stmt.params.location = aLocation;
stmt.executeAsync(new AsyncAddonListCallback(function(aAddons) {
if (aAddons.length == 0) {
aCallback(null);
return;
}
// This should never happen but indicates invalid data in the database if
// it does
if (aAddons.length > 1)
ERROR("Multiple addons with ID " + aId + " found in location " + aLocation);
aCallback(aAddons[0]);
}));
},
/**
* Asynchronously gets the add-on with an ID that is visible.
*
* @param aId
* The ID of the add-on to retrieve
* @param aCallback
* A callback to pass the DBAddonInternal to
*/
getVisibleAddonForID: function XPIDB_getVisibleAddonForID(aId, aCallback) {
let stmt = this.getStatement("getVisibleAddonForID");
stmt.params.id = aId;
stmt.executeAsync(new AsyncAddonListCallback(function(aAddons) {
if (aAddons.length == 0) {
aCallback(null);
return;
}
// This should never happen but indicates invalid data in the database if
// it does
if (aAddons.length > 1)
ERROR("Multiple visible addons with ID " + aId + " found");
aCallback(aAddons[0]);
}));
},
/**
* Asynchronously gets the visible add-ons, optionally restricting by type.
*
* @param aTypes
* An array of types to include or null to include all types
* @param aCallback
* A callback to pass the array of DBAddonInternals to
*/
getVisibleAddons: function XPIDB_getVisibleAddons(aTypes, aCallback) {
let stmt = null;
if (!aTypes || aTypes.length == 0) {
stmt = this.getStatement("getVisibleAddons");
}
else {
let sql = "SELECT * FROM addon WHERE visible=1 AND type IN (";
for (let i = 1; i <= aTypes.length; i++) {
sql += "?" + i;
if (i < aTypes.length)
sql += ",";
}
sql += ")";
// Note that binding to index 0 sets the value for the ?1 parameter
stmt = this.getStatement("getVisibleAddons_" + aTypes.length, sql);
for (let i = 0; i < aTypes.length; i++)
stmt.bindStringParameter(i, aTypes[i]);
}
stmt.executeAsync(new AsyncAddonListCallback(aCallback));
},
/**
* Synchronously gets all add-ons of a particular type.
*
* @param aType
* The type of add-on to retrieve
* @return an array of DBAddonInternals
*/
getAddonsByType: function XPIDB_getAddonsByType(aType) {
let stmt = this.getStatement("getAddonsByType");
stmt.params.type = aType;
return [this.makeAddonFromRow(row) for each (row in resultRows(stmt))];;
},
/**
* Synchronously gets an add-on with a particular internalName.
*
* @param aInternalName
* The internalName of the add-on to retrieve
* @return a DBAddonInternal
*/
getVisibleAddonForInternalName: function XPIDB_getVisibleAddonForInternalName(aInternalName) {
let stmt = this.getStatement("getVisibleAddoForInternalName");
let addon = null;
stmt.params.internalName = aInternalName;
if (stepStatement(stmt))
addon = this.makeAddonFromRow(stmt.row);
stmt.reset();
return addon;
},
/**
* Asynchronously gets all add-ons with pending operations.
*
* @param aTypes
* The types of add-ons to retrieve or null to get all types
* @param aCallback
* A callback to pass the array of DBAddonInternal to
*/
getVisibleAddonsWithPendingOperations:
function XPIDB_getVisibleAddonsWithPendingOperations(aTypes, aCallback) {
let stmt = null;
if (!aTypes || aTypes.length == 0) {
stmt = this.getStatement("getVisibleAddonsWithPendingOperations");
}
else {
let sql = "SELECT * FROM addon WHERE visible=1 AND " +
"(pendingUninstall=1 OR MAX(userDisabled,appDisabled)=active) " +
"AND type IN (";
for (let i = 1; i <= aTypes.length; i++) {
sql += "?" + i;
if (i < aTypes.length)
sql += ",";
}
sql += ")";
// Note that binding to index 0 sets the value for the ?1 parameter
stmt = this.getStatement("getVisibleAddonsWithPendingOperations_" +
aTypes.length, sql);
for (let i = 0; i < aTypes.length; i++)
stmt.bindStringParameter(i, aTypes[i]);
}
stmt.executeAsync(new AsyncAddonListCallback(aCallback));
},
/**
* Synchronously gets all add-ons in the database.
*
* @return an array of DBAddonInternals
*/
getAddons: function XPIDB_getAddons() {
let stmt = this.getStatement("getAddons");
return [this.makeAddonFromRow(row) for each (row in resultRows(stmt))];;
},
/**
* Synchronously adds an AddonInternal's metadata to the database.
*
* @param aAddon
* AddonInternal to add
* @param aDescriptor
* The file descriptor of the add-on
*/
addAddonMetadata: function XPIDB_addAddonMetadata(aAddon, aDescriptor) {
this.beginTransaction();
// Any errors in here should rollback the transaction
try {
let localestmt = this.getStatement("addAddonMetadata_locale");
let stringstmt = this.getStatement("addAddonMetadata_strings");
function insertLocale(aLocale) {
copyProperties(aLocale, PROP_LOCALE_SINGLE, localestmt.params);
executeStatement(localestmt);
let row = XPIDatabase.connection.lastInsertRowID;
PROP_LOCALE_MULTI.forEach(function(aProp) {
aLocale[aProp].forEach(function(aStr) {
stringstmt.params.locale = row;
stringstmt.params.type = aProp;
stringstmt.params.value = aStr;
executeStatement(stringstmt);
});
});
return row;
}
if (aAddon.visible) {
let stmt = this.getStatement("clearVisibleAddons");
stmt.params.id = aAddon.id;
executeStatement(stmt);
}
let stmt = this.getStatement("addAddonMetadata_addon");
stmt.params.locale = insertLocale(aAddon.defaultLocale);
stmt.params.location = aAddon._installLocation.name;
stmt.params.descriptor = aDescriptor;
copyProperties(aAddon, PROP_METADATA, stmt.params);
copyProperties(aAddon, DB_METADATA, stmt.params);
DB_BOOL_METADATA.forEach(function(aProp) {
stmt.params[aProp] = aAddon[aProp] ? 1 : 0;
});
executeStatement(stmt);
let internal_id = this.connection.lastInsertRowID;
stmt = this.getStatement("addAddonMetadata_addon_locale");
aAddon.locales.forEach(function(aLocale) {
let id = insertLocale(aLocale);
aLocale.locales.forEach(function(aName) {
stmt.params.internal_id = internal_id;
stmt.params.name = aName;
stmt.params.locale = insertLocale(aLocale);
executeStatement(stmt);
});
});
stmt = this.getStatement("addAddonMetadata_targetApplication");
aAddon.targetApplications.forEach(function(aApp) {
stmt.params.internal_id = internal_id;
stmt.params.id = aApp.id;
stmt.params.minVersion = aApp.minVersion;
stmt.params.maxVersion = aApp.maxVersion;
executeStatement(stmt);
});
stmt = this.getStatement("addAddonMetadata_targetPlatform");
aAddon.targetPlatforms.forEach(function(aPlatform) {
stmt.params.internal_id = internal_id;
stmt.params.os = aPlatform.os;
stmt.params.abi = aPlatform.abi;
executeStatement(stmt);
});
this.commitTransaction();
}
catch (e) {
this.rollbackTransaction();
throw e;
}
},
/**
* Synchronously updates an add-ons metadata in the database. Currently just
* removes and recreates.
*
* @param aOldAddon
* The DBAddonInternal to be replaced
* @param aNewAddon
* The new AddonInternal to add
* @param aDescriptor
* The file descriptor of the add-on
*/
updateAddonMetadata: function XPIDB_updateAddonMetadata(aOldAddon, aNewAddon,
aDescriptor) {
this.beginTransaction();
// Any errors in here should rollback the transaction
try {
this.removeAddonMetadata(aOldAddon);
aNewAddon.installDate = aOldAddon.installDate;
aNewAddon.applyBackgroundUpdates = aOldAddon.applyBackgroundUpdates;
aNewAddon.active = (aNewAddon.visible && !aNewAddon.userDisabled &&
!aNewAddon.appDisabled)
this.addAddonMetadata(aNewAddon, aDescriptor);
this.commitTransaction();
}
catch (e) {
this.rollbackTransaction();
throw e;
}
},
/**
* Synchronously updates the target application entries for an add-on.
*
* @param aAddon
* The DBAddonInternal being updated
* @param aTargets
* The array of target applications to update
*/
updateTargetApplications: function XPIDB_updateTargetApplications(aAddon,
aTargets) {
this.beginTransaction();
// Any errors in here should rollback the transaction
try {
let stmt = this.getStatement("updateTargetApplications");
aTargets.forEach(function(aTarget) {
stmt.params.internal_id = aAddon._internal_id;
stmt.params.id = aTarget.id;
stmt.params.minVersion = aTarget.minVersion;
stmt.params.maxVersion = aTarget.maxVersion;
executeStatement(stmt);
});
this.commitTransaction();
}
catch (e) {
this.rollbackTransaction();
throw e;
}
},
/**
* Synchronously removes an add-on from the database.
*
* @param aAddon
* The DBAddonInternal being removed
*/
removeAddonMetadata: function XPIDB_removeAddonMetadata(aAddon) {
let stmt = this.getStatement("removeAddonMetadata");
stmt.params.internal_id = aAddon._internal_id;
executeStatement(stmt);
},
/**
* Synchronously marks a DBAddonInternal as visible marking all other
* instances with the same ID as not visible.
*
* @param aAddon
* The DBAddonInternal to make visible
* @param callback
* A callback to pass the DBAddonInternal to
*/
makeAddonVisible: function XPIDB_makeAddonVisible(aAddon) {
let stmt = this.getStatement("clearVisibleAddons");
stmt.params.id = aAddon.id;
executeStatement(stmt);
stmt = this.getStatement("makeAddonVisible");
stmt.params.internal_id = aAddon._internal_id;
executeStatement(stmt);
aAddon.visible = true;
},
/**
* Synchronously sets properties for an add-on.
*
* @param aAddon
* The DBAddonInternal being updated
* @param aProperties
* A dictionary of properties to set
*/
setAddonProperties: function XPIDB_setAddonProperties(aAddon, aProperties) {
function convertBoolean(value) {
return value ? 1 : 0;
}
let stmt = this.getStatement("setAddonProperties");
stmt.params.internal_id = aAddon._internal_id;
["userDisabled", "appDisabled",
"pendingUninstall"].forEach(function(aProp) {
if (aProp in aProperties) {
stmt.params[aProp] = convertBoolean(aProperties[aProp]);
aAddon[aProp] = aProperties[aProp];
}
else {
stmt.params[aProp] = convertBoolean(aAddon[aProp]);
}
});
if ("applyBackgroundUpdates" in aProperties) {
stmt.params.applyBackgroundUpdates = aProperties.applyBackgroundUpdates;
aAddon.applyBackgroundUpdates = aProperties.applyBackgroundUpdates;
}
else {
stmt.params.applyBackgroundUpdates = aAddon.applyBackgroundUpdates;
}
executeStatement(stmt);
},
/**
* Synchronously pdates an add-on's active flag in the database.
*
* @param aAddon
* The DBAddonInternal to update
*/
updateAddonActive: function XPIDB_updateAddonActive(aAddon) {
LOG("Updating add-on state");
let stmt = this.getStatement("updateAddonActive");
stmt.params.internal_id = aAddon._internal_id;
stmt.params.active = aAddon.active ? 1 : 0;
executeStatement(stmt);
},
/**
* Synchronously calculates and updates all the active flags in the database.
*/
updateActiveAddons: function XPIDB_updateActiveAddons() {
LOG("Updating add-on states");
let stmt = this.getStatement("setActiveAddons");
executeStatement(stmt);
// Note that this does not update the active property on cached
// DBAddonInternal instances so we throw away the cache. This should only
// happen during shutdown when everything is going away anyway or during
// startup when the only references are internal.
this.addonCache = [];
},
/**
* Writes out the XPI add-ons list for the platform to read.
*/
writeAddonsList: function XPIDB_writeAddonsList() {
LOG("Writing add-ons list");
Services.appinfo.invalidateCachesOnRestart();
let addonsList = FileUtils.getFile(KEY_PROFILEDIR, [FILE_XPI_ADDONS_LIST],
true);
let enabledAddons = [];
let text = "[ExtensionDirs]\r\n";
let count = 0;
let stmt = this.getStatement("getActiveAddons");
for (let row in resultRows(stmt)) {
text += "Extension" + (count++) + "=" + row.descriptor + "\r\n";
enabledAddons.push(row.id + ":" + row.version);
}
// The selected skin may come from an inactive theme (the default theme
// when a lightweight theme is applied for example)
text += "\r\n[ThemeDirs]\r\n";
if (Prefs.getBoolPref(PREF_EM_DSS_ENABLED)) {
stmt = this.getStatement("getThemes");
}
else {
stmt = this.getStatement("getActiveTheme");
stmt.params.internalName = XPIProvider.selectedSkin;
}
count = 0;
for (let row in resultRows(stmt)) {
text += "Extension" + (count++) + "=" + row.descriptor + "\r\n";
enabledAddons.push(row.id + ":" + row.version);
}
var fos = FileUtils.openSafeFileOutputStream(addonsList);
fos.write(text, text.length);
FileUtils.closeSafeFileOutputStream(fos);
Services.prefs.setCharPref(PREF_EM_ENABLED_ADDONS, enabledAddons.join(","));
}
};
function getHashStringForCrypto(aCrypto) {
// return the two-digit hexadecimal code for a byte
function toHexString(charCode)
("0" + charCode.toString(16)).slice(-2);
// convert the binary hash data to a hex string.
let binary = aCrypto.finish(false);
return [toHexString(binary.charCodeAt(i)) for (i in binary)].join("").toLowerCase()
}
/**
* Instantiates an AddonInstall and passes the new object to a callback when
* it is complete.
*
* @param aCallback
* The callback to pass the AddonInstall to
* @param aInstallLocation
* The install location the add-on will be installed into
* @param aUrl
* The nsIURL to get the add-on from. If this is an nsIFileURL then
* the add-on will not need to be downloaded
* @param aHash
* An optional hash for the add-on
* @param aName
* An optional name for the add-on
* @param aType
* An optional type for the add-on
* @param aIconURL
* An optional icon for the add-on
* @param aVersion
* An optional version for the add-on
* @param aReleaseNotesURI
* An optional nsIURI of release notes for the add-on
* @param aExistingAddon
* The add-on this install will update if known
* @param aLoadGroup
* The nsILoadGroup to associate any requests with
* @throws if the url is the url of a local file and the hash does not match
* or the add-on does not contain an valid install manifest
*/
function AddonInstall(aCallback, aInstallLocation, aUrl, aHash, aName, aType,
aIconURL, aVersion, aReleaseNotesURI, aExistingAddon,
aLoadGroup) {
this.wrapper = new AddonInstallWrapper(this);
this.installLocation = aInstallLocation;
this.sourceURI = aUrl;
this.releaseNotesURI = aReleaseNotesURI;
if (aHash) {
let hashSplit = aHash.toLowerCase().split(":");
this.originalHash = {
algorithm: hashSplit[0],
data: hashSplit[1]
};
}
this.hash = this.originalHash;
this.loadGroup = aLoadGroup;
this.listeners = [];
this.existingAddon = aExistingAddon;
this.error = 0;
if (aLoadGroup)
this.window = aLoadGroup.notificationCallbacks
.getInterface(Ci.nsIDOMWindow);
else
this.window = null;
if (aUrl instanceof Ci.nsIFileURL) {
this.file = aUrl.file.QueryInterface(Ci.nsILocalFile);
if (!this.file.exists()) {
WARN("XPI file " + this.file.path + " does not exist");
this.state = AddonManager.STATE_DOWNLOAD_FAILED;
this.error = AddonManager.ERROR_NETWORK_FAILURE;
aCallback(this);
return;
}
this.state = AddonManager.STATE_DOWNLOADED;
this.progress = this.file.fileSize;
this.maxProgress = this.file.fileSize;
if (this.hash) {
let crypto = Cc["@mozilla.org/security/hash;1"].
createInstance(Ci.nsICryptoHash);
try {
crypto.initWithString(this.hash.algorithm);
}
catch (e) {
WARN("Unknown hash algorithm " + this.hash.algorithm);
this.state = AddonManager.STATE_DOWNLOAD_FAILED;
this.error = AddonManager.ERROR_INCORRECT_HASH;
aCallback(this);
return;
}
let fis = Cc["@mozilla.org/network/file-input-stream;1"].
createInstance(Ci.nsIFileInputStream);
fis.init(this.file, -1, -1, false);
crypto.updateFromStream(fis, this.file.fileSize);
let calculatedHash = getHashStringForCrypto(crypto);
if (calculatedHash != this.hash.data) {
WARN("File hash (" + calculatedHash + ") did not match provided hash (" +
this.hash.data + ")");
this.state = AddonManager.STATE_DOWNLOAD_FAILED;
this.error = AddonManager.ERROR_INCORRECT_HASH;
aCallback(this);
return;
}
}
try {
let self = this;
this.loadManifest(function() {
XPIDatabase.getVisibleAddonForID(self.addon.id, function(aAddon) {
self.existingAddon = aAddon;
if (aAddon)
self.addon.userDisabled = aAddon.userDisabled;
self.addon.updateDate = Date.now();
self.addon.installDate = aAddon ? aAddon.installDate : self.addon.updateDate;
if (!self.addon.isCompatible) {
// TODO Should we send some event here?
self.state = AddonManager.STATE_CHECKING;
new UpdateChecker(self.addon, {
onUpdateFinished: function(aAddon) {
self.state = AddonManager.STATE_DOWNLOADED;
XPIProvider.installs.push(self);
AddonManagerPrivate.callInstallListeners("onNewInstall",
self.listeners,
self.wrapper);
aCallback(self);
}
}, AddonManager.UPDATE_WHEN_ADDON_INSTALLED);
}
else {
XPIProvider.installs.push(self);
AddonManagerPrivate.callInstallListeners("onNewInstall",
self.listeners,
self.wrapper);
aCallback(self);
}
});
});
}
catch (e) {
WARN("Invalid XPI", e);
this.state = AddonManager.STATE_DOWNLOAD_FAILED;
this.error = AddonManager.ERROR_CORRUPT_FILE;
aCallback(this);
return;
}
}
else {
this.state = AddonManager.STATE_AVAILABLE;
this.name = aName;
this.type = aType;
this.version = aVersion;
this.iconURL = aIconURL;
this.progress = 0;
this.maxProgress = -1;
XPIProvider.installs.push(this);
AddonManagerPrivate.callInstallListeners("onNewInstall", this.listeners,
this.wrapper);
aCallback(this);
}
}
AddonInstall.prototype = {
installLocation: null,
wrapper: null,
stream: null,
crypto: null,
originalHash: null,
hash: null,
loadGroup: null,
badCertHandler: null,
listeners: null,
name: null,
type: null,
version: null,
iconURL: null,
releaseNotesURI: null,
sourceURI: null,
file: null,
ownsTempFile: false,
certificate: null,
certName: null,
linkedInstalls: null,
existingAddon: null,
addon: null,
state: null,
error: null,
progress: null,
maxProgress: null,
/**
* Starts installation of this add-on from whatever state it is currently at
* if possible.
*
* @throws if installation cannot proceed from the current state
*/
install: function AI_install() {
switch (this.state) {
case AddonManager.STATE_AVAILABLE:
this.startDownload();
break;
case AddonManager.STATE_DOWNLOADED:
this.startInstall();
break;
case AddonManager.STATE_DOWNLOAD_FAILED:
case AddonManager.STATE_INSTALL_FAILED:
case AddonManager.STATE_CANCELLED:
this.removeTemporaryFile();
this.state = AddonManager.STATE_AVAILABLE;
this.error = 0;
this.progress = 0;
this.maxProgress = -1;
this.hash = this.originalHash;
XPIProvider.installs.push(this);
this.startDownload();
break;
case AddonManager.STATE_DOWNLOADING:
case AddonManager.STATE_CHECKING:
case AddonManager.STATE_INSTALLING:
// Installation is already running
return;
default:
throw new Error("Cannot start installing from this state");
}
},
/**
* Cancels installation of this add-on.
*
* @throws if installation cannot be cancelled from the current state
*/
cancel: function AI_cancel() {
switch (this.state) {
case AddonManager.STATE_DOWNLOADING:
if (this.channel)
this.channel.cancel(Cr.NS_BINDING_ABORTED);
case AddonManager.STATE_AVAILABLE:
case AddonManager.STATE_DOWNLOADED:
LOG("Cancelling download of " + this.sourceURI.spec);
this.state = AddonManager.STATE_CANCELLED;
XPIProvider.removeActiveInstall(this);
AddonManagerPrivate.callInstallListeners("onDownloadCancelled",
this.listeners, this.wrapper);
this.removeTemporaryFile();
break;
case AddonManager.STATE_INSTALLED:
LOG("Cancelling install of " + this.addon.id);
let xpi = this.installLocation.getStagingDir();
xpi.append(this.addon.id + ".xpi");
Services.obs.notifyObservers(xpi, "flush-cache-entry", null);
cleanStagingDir(this.installLocation.getStagingDir(),
[this.addon.id, this.addon.id + ".xpi",
this.addon.id + ".json"]);
this.state = AddonManager.STATE_CANCELLED;
XPIProvider.removeActiveInstall(this);
if (this.existingAddon) {
delete this.existingAddon.pendingUpgrade;
this.existingAddon.pendingUpgrade = null;
}
AddonManagerPrivate.callAddonListeners("onOperationCancelled", createWrapper(this.addon));
AddonManagerPrivate.callInstallListeners("onInstallCancelled",
this.listeners, this.wrapper);
break;
default:
throw new Error("Cannot cancel install of " + this.sourceURI.spec +
" from this state (" + this.state + ")");
}
},
/**
* Adds an InstallListener for this instance if the listener is not already
* registered.
*
* @param aListener
* The InstallListener to add
*/
addListener: function AI_addListener(aListener) {
if (!this.listeners.some(function(i) { return i == aListener; }))
this.listeners.push(aListener);
},
/**
* Removes an InstallListener for this instance if it is registered.
*
* @param aListener
* The InstallListener to remove
*/
removeListener: function AI_removeListener(aListener) {
this.listeners = this.listeners.filter(function(i) {
return i != aListener;
});
},
/**
* Removes the temporary file owned by this AddonInstall if there is one.
*/
removeTemporaryFile: function AI_removeTemporaryFile() {
// Only proceed if this AddonInstall owns its XPI file
if (!this.ownsTempFile)
return;
try {
this.file.remove(true);
this.ownsTempFile = false;
}
catch (e) {
WARN("Failed to remove temporary file " + this.file.path, e);
}
},
/**
* Updates the sourceURI and releaseNotesURI values on the Addon being
* installed by this AddonInstall instance.
*/
updateAddonURIs: function AI_updateAddonURIs() {
this.addon.sourceURI = this.sourceURI.spec;
if (this.releaseNotesURI)
this.addon.releaseNotesURI = this.releaseNotesURI.spec;
},
/**
* Loads add-on manifests from a multi-package XPI file. Each of the
* XPI and JAR files contained in the XPI will be extracted. Any that
* do not contain valid add-ons will be ignored. The first valid add-on will
* be installed by this AddonInstall instance, the rest will have new
* AddonInstall instances created for them.
*
* @param aZipReader
* An open nsIZipReader for the multi-package XPI's files. This will
* be closed before this method returns.
* @param aCallback
* A function to call when all of the add-on manifests have been
* loaded.
*/
loadMultipackageManifests: function AI_loadMultipackageManifests(aZipReader,
aCallback) {
let files = [];
let entries = aZipReader.findEntries("(*.[Xx][Pp][Ii]|*.[Jj][Aa][Rr])");
while (entries.hasMore()) {
let entryName = entries.getNext();
var target = getTemporaryFile();
try {
aZipReader.extract(entryName, target);
files.push(target);
}
catch (e) {
WARN("Failed to extract " + entryName + " from multi-package " +
"XPI", e);
target.remove(false);
}
}
aZipReader.close();
if (files.length == 0) {
throw new Error("Multi-package XPI does not contain any packages " +
"to install");
}
let addon = null;
// Find the first file that has a valid install manifest and use it for
// the add-on that this AddonInstall instance will install.
while (files.length > 0) {
this.removeTemporaryFile();
this.file = files.shift();
this.ownsTempFile = true;
try {
addon = loadManifestFromZipFile(this.file);
break;
}
catch (e) {
WARN(this.file.leafName + " cannot be installed from multi-package " +
"XPI", e);
}
}
if (!addon) {
// No valid add-on was found
aCallback();
return;
}
this.addon = addon;
this.updateAddonURIs();
this.addon._install = this;
this.name = this.addon.selectedLocale.name;
this.type = this.addon.type;
this.version = this.addon.version;
// Setting the iconURL to something inside the XPI locks the XPI and
// makes it impossible to delete on Windows.
//let newIcon = createWrapper(this.addon).iconURL;
//if (newIcon)
// this.iconURL = newIcon;
// Create new AddonInstall instances for every remaining file
if (files.length > 0) {
this.linkedInstalls = [];
let count = 0;
let self = this;
files.forEach(function(file) {
AddonInstall.createInstall(function(aInstall) {
// Ignore bad add-ons (createInstall will have logged the error)
if (aInstall.state == AddonManager.STATE_DOWNLOAD_FAILED) {
// Manually remove the temporary file
file.remove(true);
}
else {
// Make the new install own its temporary file
aInstall.ownsTempFile = true;
self.linkedInstalls.push(aInstall)
aInstall.sourceURI = self.sourceURI;
aInstall.releaseNotesURI = self.releaseNotesURI;
aInstall.updateAddonURIs();
}
count++;
if (count == files.length)
aCallback();
}, file);
}, this);
}
else {
aCallback();
}
},
/**
* Called after the add-on is a local file and the signature and install
* manifest can be read.
*
* @param aCallback
* A function to call when the manifest has been loaded
* @throws if the add-on does not contain a valid install manifest or the
* XPI is incorrectly signed
*/
loadManifest: function AI_loadManifest(aCallback) {
function addRepositoryData(aAddon) {
// Try to load from the existing cache first
AddonRepository.getCachedAddonByID(aAddon.id, function(aRepoAddon) {
if (aRepoAddon) {
aAddon._repositoryAddon = aRepoAddon;
aCallback();
return;
}
// It wasn't there so try to re-download it
AddonRepository.cacheAddons([aAddon.id], function() {
AddonRepository.getCachedAddonByID(aAddon.id, function(aRepoAddon) {
aAddon._repositoryAddon = aRepoAddon;
aCallback();
});
});
});
}
let zipreader = Cc["@mozilla.org/libjar/zip-reader;1"].
createInstance(Ci.nsIZipReader);
try {
zipreader.open(this.file);
}
catch (e) {
zipreader.close();
throw e;
}
let principal = zipreader.getCertificatePrincipal(null);
if (principal && principal.hasCertificate) {
LOG("Verifying XPI signature");
if (verifyZipSigning(zipreader, principal)) {
let x509 = principal.certificate;
if (x509 instanceof Ci.nsIX509Cert)
this.certificate = x509;
if (this.certificate && this.certificate.commonName.length > 0)
this.certName = this.certificate.commonName;
else
this.certName = principal.prettyName;
}
else {
zipreader.close();
throw new Error("XPI is incorrectly signed");
}
}
try {
this.addon = loadManifestFromZipReader(zipreader);
}
catch (e) {
zipreader.close();
throw e;
}
if (this.addon.type == "multipackage") {
let self = this;
this.loadMultipackageManifests(zipreader, function() {
addRepositoryData(self.addon);
});
return;
}
zipreader.close();
this.updateAddonURIs();
this.addon._install = this;
this.name = this.addon.selectedLocale.name;
this.type = this.addon.type;
this.version = this.addon.version;
// Setting the iconURL to something inside the XPI locks the XPI and
// makes it impossible to delete on Windows.
//let newIcon = createWrapper(this.addon).iconURL;
//if (newIcon)
// this.iconURL = newIcon;
addRepositoryData(this.addon);
},
observe: function AI_observe(aSubject, aTopic, aData) {
// Network is going offline
this.cancel();
},
/**
* Starts downloading the add-on's XPI file.
*/
startDownload: function AI_startDownload() {
this.state = AddonManager.STATE_DOWNLOADING;
if (!AddonManagerPrivate.callInstallListeners("onDownloadStarted",
this.listeners, this.wrapper)) {
this.state = AddonManager.STATE_CANCELLED;
XPIProvider.removeActiveInstall(this);
AddonManagerPrivate.callInstallListeners("onDownloadCancelled",
this.listeners, this.wrapper)
return;
}
// If a listener changed our state then do not proceed with the download
if (this.state != AddonManager.STATE_DOWNLOADING)
return;
try {
this.file = getTemporaryFile();
this.ownsTempFile = true;
this.stream = Cc["@mozilla.org/network/file-output-stream;1"].
createInstance(Ci.nsIFileOutputStream);
this.stream.init(this.file, FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE |
FileUtils.MODE_TRUNCATE, FileUtils.PERMS_FILE, 0);
}
catch (e) {
WARN("Failed to start download", e);
this.state = AddonManager.STATE_DOWNLOAD_FAILED;
this.error = AddonManager.ERROR_FILE_ACCESS;
XPIProvider.removeActiveInstall(this);
AddonManagerPrivate.callInstallListeners("onDownloadFailed",
this.listeners, this.wrapper);
return;
}
let listener = Cc["@mozilla.org/network/stream-listener-tee;1"].
createInstance(Ci.nsIStreamListenerTee);
listener.init(this, this.stream);
try {
Components.utils.import("resource://gre/modules/CertUtils.jsm");
let requireBuiltIn = Prefs.getBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, true);
this.badCertHandler = new BadCertHandler(!requireBuiltIn);
this.channel = NetUtil.newChannel(this.sourceURI);
this.channel.notificationCallbacks = this;
if (this.channel instanceof Ci.nsIHttpChannelInternal)
this.channel.forceAllowThirdPartyCookie = true;
this.channel.asyncOpen(listener, null);
Services.obs.addObserver(this, "network:offline-about-to-go-offline", false);
}
catch (e) {
WARN("Failed to start download", e);
this.state = AddonManager.STATE_DOWNLOAD_FAILED;
this.error = AddonManager.ERROR_NETWORK_FAILURE;
XPIProvider.removeActiveInstall(this);
AddonManagerPrivate.callInstallListeners("onDownloadFailed",
this.listeners, this.wrapper);
}
},
/**
* Update the crypto hasher with the new data and call the progress listeners.
*
* @see nsIStreamListener
*/
onDataAvailable: function AI_onDataAvailable(aRequest, aContext, aInputstream,
aOffset, aCount) {
this.crypto.updateFromStream(aInputstream, aCount);
this.progress += aCount;
if (!AddonManagerPrivate.callInstallListeners("onDownloadProgress",
this.listeners, this.wrapper)) {
// TODO cancel the download and make it available again (bug 553024)
}
},
/**
* Check the redirect response for a hash of the target XPI and verify that
* we don't end up on an insecure channel.
*
* @see nsIChannelEventSink
*/
asyncOnChannelRedirect: function(aOldChannel, aNewChannel, aFlags, aCallback) {
if (!this.hash && aOldChannel.originalURI.schemeIs("https") &&
aOldChannel instanceof Ci.nsIHttpChannel) {
try {
let hashStr = aOldChannel.getResponseHeader("X-Target-Digest");
let hashSplit = hashStr.toLowerCase().split(":");
this.hash = {
algorithm: hashSplit[0],
data: hashSplit[1]
};
}
catch (e) {
}
}
// Verify that we don't end up on an insecure channel if we haven't got a
// hash to verify with (see bug 537761 for discussion)
if (!this.hash)
this.badCertHandler.asyncOnChannelRedirect(aOldChannel, aNewChannel, aFlags, aCallback);
else
aCallback.onRedirectVerifyCallback(Cr.NS_OK);
this.channel = aNewChannel;
},
/**
* This is the first chance to get at real headers on the channel.
*
* @see nsIStreamListener
*/
onStartRequest: function AI_onStartRequest(aRequest, aContext) {
this.crypto = Cc["@mozilla.org/security/hash;1"].
createInstance(Ci.nsICryptoHash);
if (this.hash) {
try {
this.crypto.initWithString(this.hash.algorithm);
}
catch (e) {
WARN("Unknown hash algorithm " + this.hash.algorithm);
this.state = AddonManager.STATE_DOWNLOAD_FAILED;
this.error = AddonManager.ERROR_INCORRECT_HASH;
XPIProvider.removeActiveInstall(this);
AddonManagerPrivate.callInstallListeners("onDownloadFailed",
this.listeners, this.wrapper);
aRequest.cancel(Cr.NS_BINDING_ABORTED);
return;
}
}
else {
// We always need something to consume data from the inputstream passed
// to onDataAvailable so just create a dummy cryptohasher to do that.
this.crypto.initWithString("sha1");
}
this.progress = 0;
if (aRequest instanceof Ci.nsIChannel) {
try {
this.maxProgress = aRequest.contentLength;
}
catch (e) {
}
LOG("Download started for " + this.sourceURI.spec + " to file " +
this.file.path);
}
},
/**
* The download is complete.
*
* @see nsIStreamListener
*/
onStopRequest: function AI_onStopRequest(aRequest, aContext, aStatus) {
this.stream.close();
this.channel = null;
this.badCerthandler = null;
Services.obs.removeObserver(this, "network:offline-about-to-go-offline");
// If the download was cancelled then all events will have already been sent
if (aStatus == Cr.NS_BINDING_ABORTED) {
this.removeTemporaryFile();
return;
}
LOG("Download of " + this.sourceURI.spec + " completed.");
if (Components.isSuccessCode(aStatus)) {
if (!(aRequest instanceof Ci.nsIHttpChannel) || aRequest.requestSucceeded) {
if (!this.hash && (aRequest instanceof Ci.nsIChannel)) {
try {
checkCert(aRequest,
!Prefs.getBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, true));
}
catch (e) {
this.downloadFailed(AddonManager.ERROR_NETWORK_FAILURE, e);
return;
}
}
// convert the binary hash data to a hex string.
let calculatedHash = getHashStringForCrypto(this.crypto);
this.crypto = null;
if (this.hash && calculatedHash != this.hash.data) {
this.downloadFailed(AddonManager.ERROR_INCORRECT_HASH,
"Downloaded file hash (" + calculatedHash +
") did not match provided hash (" + this.hash.data + ")");
return;
}
try {
let self = this;
this.loadManifest(function() {
if (self.addon.isCompatible) {
self.downloadCompleted();
}
else {
// TODO Should we send some event here (bug 557716)?
self.state = AddonManager.STATE_CHECKING;
new UpdateChecker(self.addon, {
onUpdateFinished: function(aAddon) {
self.downloadCompleted();
}
}, AddonManager.UPDATE_WHEN_ADDON_INSTALLED);
}
});
}
catch (e) {
this.downloadFailed(AddonManager.ERROR_CORRUPT_FILE, e);
}
}
else {
if (aRequest instanceof Ci.nsIHttpChannel)
this.downloadFailed(AddonManager.ERROR_NETWORK_FAILURE,
aRequest.responseStatus + " " +
aRequest.responseStatusText);
else
this.downloadFailed(AddonManager.ERROR_NETWORK_FAILURE, aStatus);
}
}
else {
this.downloadFailed(AddonManager.ERROR_NETWORK_FAILURE, aStatus);
}
},
/**
* Notify listeners that the download failed.
*
* @param aReason
* Something to log about the failure
* @param error
* The error code to pass to the listeners
*/
downloadFailed: function(aReason, aError) {
WARN("Download failed", aError);
this.state = AddonManager.STATE_DOWNLOAD_FAILED;
this.error = aReason;
XPIProvider.removeActiveInstall(this);
AddonManagerPrivate.callInstallListeners("onDownloadFailed", this.listeners,
this.wrapper);
// If the listener hasn't restarted the download then remove any temporary
// file
if (this.state == AddonManager.STATE_DOWNLOAD_FAILED)
this.removeTemporaryFile();
},
/**
* Notify listeners that the download completed.
*/
downloadCompleted: function() {
let self = this;
XPIDatabase.getVisibleAddonForID(this.addon.id, function(aAddon) {
if (aAddon)
self.existingAddon = aAddon;
self.state = AddonManager.STATE_DOWNLOADED;
self.addon.updateDate = Date.now();
if (self.existingAddon) {
self.addon.existingAddonID = self.existingAddon.id;
self.addon.userDisabled = self.existingAddon.userDisabled;
self.addon.installDate = self.existingAddon.installDate;
}
else {
self.addon.installDate = self.addon.updateDate;
}
if (AddonManagerPrivate.callInstallListeners("onDownloadEnded",
self.listeners,
self.wrapper)) {
// If a listener changed our state then do not proceed with the install
if (self.state != AddonManager.STATE_DOWNLOADED)
return;
self.install();
if (self.linkedInstalls) {
self.linkedInstalls.forEach(function(aInstall) {
aInstall.install();
});
}
}
});
},
// TODO This relies on the assumption that we are always installing into the
// highest priority install location so the resulting add-on will be visible
// overriding any existing copy in another install location (bug 557710).
/**
* Installs the add-on into the install location.
*/
startInstall: function AI_startInstall() {
this.state = AddonManager.STATE_INSTALLING;
if (!AddonManagerPrivate.callInstallListeners("onInstallStarted",
this.listeners, this.wrapper)) {
this.state = AddonManager.STATE_DOWNLOADED;
XPIProvider.removeActiveInstall(this);
AddonManagerPrivate.callInstallListeners("onInstallCancelled",
this.listeners, this.wrapper)
return;
}
// Find and cancel any pending installs for the same add-on in the same
// install location
XPIProvider.installs.forEach(function(aInstall) {
if (aInstall.state == AddonManager.STATE_INSTALLED &&
aInstall.installLocation == this.installLocation &&
aInstall.addon.id == this.addon.id)
aInstall.cancel();
}, this);
let isUpgrade = this.existingAddon &&
this.existingAddon._installLocation == this.installLocation;
let requiresRestart = XPIProvider.installRequiresRestart(this.addon);
LOG("Starting install of " + this.sourceURI.spec);
AddonManagerPrivate.callAddonListeners("onInstalling",
createWrapper(this.addon),
requiresRestart);
let stagedAddon = this.installLocation.getStagingDir();
try {
// First stage the file regardless of whether restarting is necessary
if (this.addon.unpack || Prefs.getBoolPref(PREF_XPI_UNPACK, false)) {
LOG("Addon " + this.addon.id + " will be installed as " +
"an unpacked directory");
stagedAddon.append(this.addon.id);
if (stagedAddon.exists())
recursiveRemove(stagedAddon);
stagedAddon.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
extractFiles(this.file, stagedAddon);
}
else {
LOG("Addon " + this.addon.id + " will be installed as " +
"a packed xpi");
stagedAddon.append(this.addon.id + ".xpi");
if (stagedAddon.exists())
stagedAddon.remove(true);
this.file.copyTo(this.installLocation.getStagingDir(),
this.addon.id + ".xpi");
}
if (requiresRestart) {
// Point the add-on to its extracted files as the xpi may get deleted
this.addon._sourceBundle = stagedAddon;
// Cache the AddonInternal as it may have updated compatibiltiy info
let stagedJSON = stagedAddon.clone();
stagedJSON.leafName = this.addon.id + ".json";
if (stagedJSON.exists())
stagedJSON.remove(true);
let stream = Cc["@mozilla.org/network/file-output-stream;1"].
createInstance(Ci.nsIFileOutputStream);
let converter = Cc["@mozilla.org/intl/converter-output-stream;1"].
createInstance(Ci.nsIConverterOutputStream);
try {
stream.init(stagedJSON, FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE |
FileUtils.MODE_TRUNCATE, FileUtils.PERMS_FILE,
0);
converter.init(stream, "UTF-8", 0, 0x0000);
converter.writeString(JSON.stringify(this.addon));
}
finally {
converter.close();
stream.close();
}
LOG("Install of " + this.sourceURI.spec + " completed.");
this.state = AddonManager.STATE_INSTALLED;
if (isUpgrade) {
delete this.existingAddon.pendingUpgrade;
this.existingAddon.pendingUpgrade = this.addon;
}
AddonManagerPrivate.callInstallListeners("onInstallEnded",
this.listeners, this.wrapper,
createWrapper(this.addon));
}
else {
// The install is completed so it should be removed from the active list
XPIProvider.removeActiveInstall(this);
// TODO We can probably reduce the number of DB operations going on here
// We probably also want to support rolling back failed upgrades etc.
// See bug 553015.
// Deactivate and remove the old add-on as necessary
let reason = BOOTSTRAP_REASONS.ADDON_INSTALL;
if (this.existingAddon) {
if (Services.vc.compare(this.existingAddon.version, this.addon.version) < 0)
reason = BOOTSTRAP_REASONS.ADDON_UPGRADE;
else
reason = BOOTSTRAP_REASONS.ADDON_DOWNGRADE;
if (this.existingAddon.bootstrap) {
let file = this.existingAddon._installLocation
.getLocationForID(this.existingAddon.id);
if (this.existingAddon.active) {
XPIProvider.callBootstrapMethod(this.existingAddon.id,
this.existingAddon.version,
file, "shutdown", reason);
}
XPIProvider.callBootstrapMethod(this.existingAddon.id,
this.existingAddon.version,
file, "uninstall", reason);
XPIProvider.unloadBootstrapScope(this.existingAddon.id);
}
if (!isUpgrade && this.existingAddon.active) {
this.existingAddon.active = false;
XPIDatabase.updateAddonActive(this.existingAddon);
}
}
// Install the new add-on into its final location
let existingAddonID = this.existingAddon ? this.existingAddon.id : null;
let file = this.installLocation.installAddon(this.addon.id, stagedAddon,
existingAddonID);
cleanStagingDir(stagedAddon.parent, []);
// Update the metadata in the database
this.addon._sourceBundle = file;
this.addon._installLocation = this.installLocation;
this.addon.updateDate = recursiveLastModifiedTime(file);
this.addon.visible = true;
if (isUpgrade) {
XPIDatabase.updateAddonMetadata(this.existingAddon, this.addon,
file.persistentDescriptor);
}
else {
this.addon.installDate = this.addon.updateDate;
this.addon.active = (this.addon.visible && !this.addon.userDisabled &&
!this.addon.appDisabled)
XPIDatabase.addAddonMetadata(this.addon, file.persistentDescriptor);
}
// Retrieve the new DBAddonInternal for the add-on we just added
let self = this;
XPIDatabase.getAddonInLocation(this.addon.id, this.installLocation.name,
function(a) {
self.addon = a;
if (self.addon.bootstrap) {
XPIProvider.callBootstrapMethod(self.addon.id, self.addon.version,
file, "install", reason);
if (self.addon.active) {
XPIProvider.callBootstrapMethod(self.addon.id, self.addon.version,
file, "startup", reason);
}
else {
XPIProvider.unloadBootstrapScope(self.addon.id);
}
}
AddonManagerPrivate.callAddonListeners("onInstalled",
createWrapper(self.addon));
LOG("Install of " + self.sourceURI.spec + " completed.");
self.state = AddonManager.STATE_INSTALLED;
AddonManagerPrivate.callInstallListeners("onInstallEnded",
self.listeners, self.wrapper,
createWrapper(self.addon));
});
}
}
catch (e) {
WARN("Failed to install", e);
if (stagedAddon.exists())
recursiveRemove(stagedAddon);
this.state = AddonManager.STATE_INSTALL_FAILED;
this.error = AddonManager.ERROR_FILE_ACCESS;
XPIProvider.removeActiveInstall(this);
AddonManagerPrivate.callInstallListeners("onInstallFailed",
this.listeners,
this.wrapper);
}
finally {
this.removeTemporaryFile();
}
},
getInterface: function(iid) {
if (iid.equals(Ci.nsIAuthPrompt2)) {
var factory = Cc["@mozilla.org/prompter;1"].
getService(Ci.nsIPromptFactory);
return factory.getPrompt(this.window, Ci.nsIAuthPrompt);
}
else if (iid.equals(Ci.nsIChannelEventSink)) {
return this;
}
return this.badCertHandler.getInterface(iid);
}
}
/**
* Creates a new AddonInstall to install an add-on from a local file. Installs
* always go into the profile install location.
*
* @param aCallback
* The callback to pass the new AddonInstall to
* @param aFile
* The file to install
*/
AddonInstall.createInstall = function(aCallback, aFile) {
let location = XPIProvider.installLocationsByName[KEY_APP_PROFILE];
let url = Services.io.newFileURI(aFile);
try {
new AddonInstall(aCallback, location, url);
}
catch(e) {
ERROR("Error creating install", e);
aCallback(null);
}
};
/**
* Creates a new AddonInstall to download and install a URL.
*
* @param aCallback
* The callback to pass the new AddonInstall to
* @param aUri
* The URI to download
* @param aHash
* A hash for the add-on
* @param aName
* A name for the add-on
* @param aIconURL
* An icon URL for the add-on
* @param aVersion
* A version for the add-on
* @param aLoadGroup
* An nsILoadGroup to associate the download with
*/
AddonInstall.createDownload = function(aCallback, aUri, aHash, aName, aIconURL,
aVersion, aLoadGroup) {
let location = XPIProvider.installLocationsByName[KEY_APP_PROFILE];
let url = NetUtil.newURI(aUri);
new AddonInstall(aCallback, location, url, aHash, aName, null,
aIconURL, aVersion, null, null, aLoadGroup);
};
/**
* Creates a new AddonInstall for an update.
*
* @param aCallback
* The callback to pass the new AddonInstall to
* @param aAddon
* The add-on being updated
* @param aUpdate
* The metadata about the new version from the update manifest
*/
AddonInstall.createUpdate = function(aCallback, aAddon, aUpdate) {
let url = NetUtil.newURI(aUpdate.updateURL);
let releaseNotesURI = null;
try {
if (aUpdate.updateInfoURL)
releaseNotesURI = NetUtil.newURI(escapeAddonURI(aAddon, aUpdate.updateInfoURL));
}
catch (e) {
// If the releaseNotesURI cannot be parsed then just ignore it.
}
new AddonInstall(aCallback, aAddon._installLocation, url, aUpdate.updateHash,
aAddon.selectedLocale.name, aAddon.type,
aAddon.iconURL, aUpdate.version, releaseNotesURI, aAddon);
};
/**
* Creates a wrapper for an AddonInstall that only exposes the public API
*
* @param install
* The AddonInstall to create a wrapper for
*/
function AddonInstallWrapper(aInstall) {
["name", "type", "version", "iconURL", "releaseNotesURI", "file", "state", "error",
"progress", "maxProgress", "certificate", "certName"].forEach(function(aProp) {
this.__defineGetter__(aProp, function() aInstall[aProp]);
}, this);
this.__defineGetter__("existingAddon", function() {
return createWrapper(aInstall.existingAddon);
});
this.__defineGetter__("addon", function() createWrapper(aInstall.addon));
this.__defineGetter__("sourceURI", function() aInstall.sourceURI);
this.__defineGetter__("linkedInstalls", function() {
if (!aInstall.linkedInstalls)
return null;
return [i.wrapper for each (i in aInstall.linkedInstalls)];
});
this.install = function() {
aInstall.install();
}
this.cancel = function() {
aInstall.cancel();
}
this.addListener = function(listener) {
aInstall.addListener(listener);
}
this.removeListener = function(listener) {
aInstall.removeListener(listener);
}
}
AddonInstallWrapper.prototype = {};
/**
* Creates a new update checker.
*
* @param aAddon
* The add-on to check for updates
* @param aListener
* An UpdateListener to notify of updates
* @param aReason
* The reason for the update check
* @param aAppVersion
* An optional application version to check for updates for
* @param aPlatformVersion
* An optional platform version to check for updates for
* @throws if the aListener or aReason arguments are not valid
*/
function UpdateChecker(aAddon, aListener, aReason, aAppVersion, aPlatformVersion) {
if (!aListener || !aReason)
throw Cr.NS_ERROR_INVALID_ARG;
Components.utils.import("resource://gre/modules/AddonUpdateChecker.jsm");
this.addon = aAddon;
this.listener = aListener;
this.appVersion = aAppVersion;
this.platformVersion = aPlatformVersion;
this.syncCompatibility = (aReason == AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
let updateURL = aAddon.updateURL ? aAddon.updateURL :
Services.prefs.getCharPref(PREF_EM_UPDATE_URL);
const UPDATE_TYPE_COMPATIBILITY = 32;
const UPDATE_TYPE_NEWVERSION = 64;
aReason |= UPDATE_TYPE_COMPATIBILITY;
if ("onUpdateAvailable" in this.listener)
aReason |= UPDATE_TYPE_NEWVERSION;
let url = escapeAddonURI(aAddon, updateURL, aReason, aAppVersion);
AddonUpdateChecker.checkForUpdates(aAddon.id, aAddon.type, aAddon.updateKey,
url, this);
}
UpdateChecker.prototype = {
addon: null,
listener: null,
appVersion: null,
platformVersion: null,
syncCompatibility: null,
/**
* Calls a method on the listener passing any number of arguments and
* consuming any exceptions.
*
* @param aMethod
* The method to call on the listener
*/
callListener: function(aMethod) {
if (!(aMethod in this.listener))
return;
let args = Array.slice(arguments, 1);
try {
this.listener[aMethod].apply(this.listener, args);
}
catch (e) {
LOG("Exception calling UpdateListener method " + aMethod + ": " + e);
}
},
/**
* Called when AddonUpdateChecker completes the update check
*
* @param updates
* The list of update details for the add-on
*/
onUpdateCheckComplete: function UC_onUpdateCheckComplete(aUpdates) {
let AUC = AddonUpdateChecker;
// Always apply any compatibility update for the current version
let compatUpdate = AUC.getCompatibilityUpdate(aUpdates, this.addon.version,
this.syncCompatibility);
// Apply the compatibility update to the database
if (compatUpdate)
this.addon.applyCompatibilityUpdate(compatUpdate, this.syncCompatibility);
// If the request is for an application or platform version that is
// different to the current application or platform version then look for a
// compatibility update for those versions.
if ((this.appVersion &&
Services.vc.compare(this.appVersion, Services.appinfo.version) != 0) ||
(this.platformVersion &&
Services.vc.compare(this.platformVersion, Services.appinfo.platformVersion) != 0)) {
compatUpdate = AUC.getCompatibilityUpdate(aUpdates, this.addon.version,
false, this.appVersion,
this.platformVersion);
}
if (compatUpdate)
this.callListener("onCompatibilityUpdateAvailable", createWrapper(this.addon));
else
this.callListener("onNoCompatibilityUpdateAvailable", createWrapper(this.addon));
function sendUpdateAvailableMessages(aSelf, aInstall) {
if (aInstall) {
aSelf.callListener("onUpdateAvailable", createWrapper(aSelf.addon),
aInstall.wrapper);
}
else {
aSelf.callListener("onNoUpdateAvailable", createWrapper(aSelf.addon));
}
aSelf.callListener("onUpdateFinished", createWrapper(aSelf.addon),
AddonManager.UPDATE_STATUS_NO_ERROR);
}
let update = AUC.getNewestCompatibleUpdate(aUpdates,
this.appVersion,
this.platformVersion);
if (update && Services.vc.compare(this.addon.version, update.version) < 0) {
for (let i = 0; i < XPIProvider.installs.length; i++) {
// Skip installs that don't match the available update
if (XPIProvider.installs[i].existingAddon != this.addon ||
XPIProvider.installs[i].version != update.version)
continue;
// If the existing install has not yet started downloading then send an
// available update notification. If it is already downloading then
// don't send any available update notification
if (XPIProvider.installs[i].state == AddonManager.STATE_AVAILABLE)
sendUpdateAvailableMessages(this, XPIProvider.installs[i]);
else
sendUpdateAvailableMessages(this, null);
return;
}
let self = this;
AddonInstall.createUpdate(function(aInstall) {
sendUpdateAvailableMessages(self, aInstall);
}, this.addon, update);
}
else {
sendUpdateAvailableMessages(this, null);
}
},
/**
* Called when AddonUpdateChecker fails the update check
*
* @param aError
* An error status
*/
onUpdateCheckError: function UC_onUpdateCheckError(aError) {
this.callListener("onNoCompatibilityUpdateAvailable", createWrapper(this.addon));
this.callListener("onNoUpdateAvailable", createWrapper(this.addon));
this.callListener("onUpdateFinished", createWrapper(this.addon), aError);
}
};
/**
* The AddonInternal is an internal only representation of add-ons. It may
* have come from the database (see DBAddonInternal below) or an install
* manifest.
*/
function AddonInternal() {
}
AddonInternal.prototype = {
_selectedLocale: null,
active: false,
visible: false,
userDisabled: false,
appDisabled: false,
sourceURI: null,
releaseNotesURI: null,
get selectedLocale() {
if (this._selectedLocale)
return this._selectedLocale;
let locale = findClosestLocale(this.locales);
this._selectedLocale = locale ? locale : this.defaultLocale;
return this._selectedLocale;
},
get providesUpdatesSecurely() {
return !!(this.updateKey || !this.updateURL ||
this.updateURL.substring(0, 6) == "https:");
},
get isCompatible() {
return this.isCompatibleWith();
},
get isPlatformCompatible() {
if (this.targetPlatforms.length == 0)
return true;
let matchedOS = false;
// If any targetPlatform matches the OS and contains an ABI then we will
// only match a targetPlatform that contains both the current OS and ABI
let needsABI = false;
// Some platforms do not specify an ABI, test against null in that case.
let abi = null;
try {
abi = Services.appinfo.XPCOMABI;
}
catch (e) { }
for (let i = 0; i < this.targetPlatforms.length; i++) {
let platform = this.targetPlatforms[i];
if (platform.os == Services.appinfo.OS) {
if (platform.abi) {
needsABI = true;
if (platform.abi === abi)
return true;
}
else {
matchedOS = true;
}
}
}
return matchedOS && !needsABI;
},
isCompatibleWith: function(aAppVersion, aPlatformVersion) {
let app = this.matchingTargetApplication;
if (!app)
return false;
if (!aAppVersion)
aAppVersion = Services.appinfo.version;
if (!aPlatformVersion)
aPlatformVersion = Services.appinfo.platformVersion;
let version;
if (app.id == Services.appinfo.ID)
version = aAppVersion;
else if (app.id == TOOLKIT_ID)
version = aPlatformVersion
return (Services.vc.compare(version, app.minVersion) >= 0) &&
(Services.vc.compare(version, app.maxVersion) <= 0)
},
get matchingTargetApplication() {
let app = null;
for (let i = 0; i < this.targetApplications.length; i++) {
if (this.targetApplications[i].id == Services.appinfo.ID)
return this.targetApplications[i];
if (this.targetApplications[i].id == TOOLKIT_ID)
app = this.targetApplications[i];
}
return app;
},
get blocklistState() {
let bs = Cc["@mozilla.org/extensions/blocklist;1"].
getService(Ci.nsIBlocklistService);
return bs.getAddonBlocklistState(this.id, this.version);
},
applyCompatibilityUpdate: function(aUpdate, aSyncCompatibility) {
this.targetApplications.forEach(function(aTargetApp) {
aUpdate.targetApplications.forEach(function(aUpdateTarget) {
if (aTargetApp.id == aUpdateTarget.id && (aSyncCompatibility ||
Services.vc.compare(aTargetApp.maxVersion, aUpdateTarget.maxVersion) < 0)) {
aTargetApp.minVersion = aUpdateTarget.minVersion;
aTargetApp.maxVersion = aUpdateTarget.maxVersion;
}
});
});
this.appDisabled = !isUsableAddon(this);
},
/**
* toJSON is called by JSON.stringify in order to create a filtered version
* of this object to be serialized to a JSON file. A new object is returned
* with copies of all non-private properties. Functions, getters and setters
* are not copied.
*
* @param aKey
* The key that this object is being serialized as in the JSON.
* Unused here since this is always the main object serialized
*
* @return an object containing copies of the properties of this object
* ignoring private properties, functions, getters and setters
*/
toJSON: function(aKey) {
let obj = {};
for (let prop in this) {
// Ignore private properties
if (prop.substring(0, 1) == "_")
continue;
// Ignore getters
if (this.__lookupGetter__(prop))
continue;
// Ignore setters
if (this.__lookupSetter__(prop))
continue;
// Ignore functions
if (typeof this[prop] == "function")
continue;
obj[prop] = this[prop];
}
return obj;
}
};
/**
* The DBAddonInternal is a special AddonInternal that has been retrieved from
* the database. Add-ons retrieved synchronously only have the basic metadata
* the rest is filled out synchronously when needed. Asynchronously read add-ons
* have all data available.
*/
function DBAddonInternal() {
this.__defineGetter__("targetApplications", function() {
delete this.targetApplications;
return this.targetApplications = XPIDatabase._getTargetApplications(this);
});
this.__defineGetter__("targetPlatforms", function() {
delete this.targetPlatforms;
return this.targetPlatforms = XPIDatabase._getTargetPlatforms(this);
});
this.__defineGetter__("locales", function() {
delete this.locales;
return this.locales = XPIDatabase._getLocales(this);
});
this.__defineGetter__("defaultLocale", function() {
delete this.defaultLocale;
return this.defaultLocale = XPIDatabase._getDefaultLocale(this);
});
this.__defineGetter__("pendingUpgrade", function() {
delete this.pendingUpgrade;
for (let i = 0; i < XPIProvider.installs.length; i++) {
let install = XPIProvider.installs[i];
if (install.state == AddonManager.STATE_INSTALLED &&
!(install.addon instanceof DBAddonInternal) &&
install.addon.id == this.id &&
install.installLocation == this._installLocation) {
return this.pendingUpgrade = install.addon;
}
};
});
}
DBAddonInternal.prototype = {
applyCompatibilityUpdate: function(aUpdate, aSyncCompatibility) {
let changes = [];
this.targetApplications.forEach(function(aTargetApp) {
aUpdate.targetApplications.forEach(function(aUpdateTarget) {
if (aTargetApp.id == aUpdateTarget.id && (aSyncCompatibility ||
Services.vc.compare(aTargetApp.maxVersion, aUpdateTarget.maxVersion) < 0)) {
aTargetApp.minVersion = aUpdateTarget.minVersion;
aTargetApp.maxVersion = aUpdateTarget.maxVersion;
changes.push(aUpdateTarget);
}
});
});
try {
XPIDatabase.updateTargetApplications(this, changes);
}
catch (e) {
// A failure just means that we discard the compatibility update
ERROR("Failed to update target application info in the database for " +
"add-on " + this.id, e);
return;
}
XPIProvider.updateAddonDisabledState(this);
}
}
DBAddonInternal.prototype.__proto__ = AddonInternal.prototype;
/**
* Creates an AddonWrapper for an AddonInternal.
*
* @param addon
* The AddonInternal to wrap
* @return an AddonWrapper or null if addon was null
*/
function createWrapper(aAddon) {
if (!aAddon)
return null;
if (!aAddon._wrapper)
aAddon._wrapper = new AddonWrapper(aAddon);
return aAddon._wrapper;
}
/**
* The AddonWrapper wraps an Addon to provide the data visible to consumers of
* the public API.
*/
function AddonWrapper(aAddon) {
function chooseValue(aObj, aProp) {
let repositoryAddon = aAddon._repositoryAddon;
let objValue = aObj[aProp];
if (repositoryAddon && (aProp in repositoryAddon) &&
(objValue === undefined || objValue === null)) {
return [repositoryAddon[aProp], true];
}
return [objValue, false];
}
["id", "version", "type", "isCompatible", "isPlatformCompatible",
"providesUpdatesSecurely", "blocklistState", "appDisabled",
"userDisabled", "skinnable", "size"].forEach(function(aProp) {
this.__defineGetter__(aProp, function() aAddon[aProp]);
}, this);
["fullDescription", "developerComments", "eula", "supportURL",
"contributionURL", "contributionAmount", "averageRating", "reviewCount",
"reviewURL", "totalDownloads", "weeklyDownloads", "dailyUsers",
"repositoryStatus"].forEach(function(aProp) {
this.__defineGetter__(aProp, function() {
if (aAddon._repositoryAddon)
return aAddon._repositoryAddon[aProp];
return null;
});
}, this);
["optionsURL", "aboutURL"].forEach(function(aProp) {
this.__defineGetter__(aProp, function() {
return this.isActive ? aAddon[aProp] : null;
});
}, this);
["installDate", "updateDate"].forEach(function(aProp) {
this.__defineGetter__(aProp, function() new Date(aAddon[aProp]));
}, this);
["sourceURI", "releaseNotesURI"].forEach(function(aProp) {
this.__defineGetter__(aProp, function() {
let target = chooseValue(aAddon, aProp)[0];
if (!target)
return null;
return NetUtil.newURI(target);
});
}, this);
// Maps iconURL and icon64URL to the properties of the same name or icon.png
// and icon64.png in the add-on's files.
["icon", "icon64"].forEach(function(aProp) {
this.__defineGetter__(aProp + "URL", function() {
if (this.isActive && aAddon[aProp + "URL"])
return aAddon[aProp + "URL"];
if (this.hasResource(aProp + ".png"))
return this.getResourceURI(aProp + ".png").spec;
if (aAddon._repositoryAddon)
return aAddon._repositoryAddon[aProp + "URL"];
return null;
}, this);
}, this);
PROP_LOCALE_SINGLE.forEach(function(aProp) {
this.__defineGetter__(aProp, function() {
// Override XPI creator if repository creator is defined
if (aProp == "creator" &&
aAddon._repositoryAddon && aAddon._repositoryAddon.creator) {
return aAddon._repositoryAddon.creator;
}
let result = null;
if (aAddon.active) {
try {
let pref = PREF_EM_EXTENSION_FORMAT + aAddon.id + "." + aProp;
let value = Services.prefs.getComplexValue(pref,
Ci.nsIPrefLocalizedString);
if (value.data)
result = value.data;
}
catch (e) {
}
}
if (result == null)
[result, ] = chooseValue(aAddon.selectedLocale, aProp);
if (aProp == "creator")
return result ? new AddonManagerPrivate.AddonAuthor(result) : null;
return result;
});
}, this);
PROP_LOCALE_MULTI.forEach(function(aProp) {
this.__defineGetter__(aProp, function() {
let results = null;
let usedRepository = false;
if (aAddon.active) {
let pref = PREF_EM_EXTENSION_FORMAT + aAddon.id + "." +
aProp.substring(0, aProp.length - 1);
let list = Services.prefs.getChildList(pref, {});
if (list.length > 0) {
list.sort();
results = [];
list.forEach(function(aPref) {
let value = Services.prefs.getComplexValue(aPref,
Ci.nsIPrefLocalizedString);
if (value.data)
results.push(value.data);
});
}
}
if (results == null)
[results, usedRepository] = chooseValue(aAddon.selectedLocale, aProp);
if (results && !usedRepository) {
results = results.map(function(aResult) {
return new AddonManagerPrivate.AddonAuthor(aResult);
});
}
return results;
});
}, this);
this.__defineGetter__("screenshots", function() {
let repositoryAddon = aAddon._repositoryAddon;
if (repositoryAddon && ("screenshots" in repositoryAddon)) {
let repositoryScreenshots = repositoryAddon.screenshots;
if (repositoryScreenshots && repositoryScreenshots.length > 0)
return repositoryScreenshots;
}
if (aAddon.type == "theme" && this.hasResource("preview.png")) {
let url = this.getResourceURI("preview.png").spec;
return [new AddonManagerPrivate.AddonScreenshot(url)];
}
return null;
});
this.__defineGetter__("applyBackgroundUpdates", function() {
return aAddon.applyBackgroundUpdates;
});
this.__defineSetter__("applyBackgroundUpdates", function(val) {
if (val != AddonManager.AUTOUPDATE_DEFAULT &&
val != AddonManager.AUTOUPDATE_DISABLE &&
val != AddonManager.AUTOUPDATE_ENABLE) {
val = val ? AddonManager.AUTOUPDATE_DEFAULT :
AddonManager.AUTOUPDATE_DISABLE;
}
if (val == aAddon.applyBackgroundUpdates)
return val;
XPIDatabase.setAddonProperties(aAddon, {
applyBackgroundUpdates: val
});
AddonManagerPrivate.callAddonListeners("onPropertyChanged", this, ["applyBackgroundUpdates"]);
return val;
});
this.__defineGetter__("install", function() {
if (!("_install" in aAddon) || !aAddon._install)
return null;
return aAddon._install.wrapper;
});
this.__defineGetter__("pendingUpgrade", function() {
return createWrapper(aAddon.pendingUpgrade);
});
this.__defineGetter__("scope", function() {
if (aAddon._installLocation)
return aAddon._installLocation.scope;
return AddonManager.SCOPE_PROFILE;
});
this.__defineGetter__("pendingOperations", function() {
let pending = 0;
if (!(aAddon instanceof DBAddonInternal)) {
// Add-on is pending install if there is no associated install (shouldn't
// happen here) or if the install is in the process of or has successfully
// completed the install.
if (!aAddon._install || aAddon._install.state == AddonManager.STATE_INSTALLING ||
aAddon._install.state == AddonManager.STATE_INSTALLED)
pending |= AddonManager.PENDING_INSTALL;
}
else if (aAddon.pendingUninstall) {
pending |= AddonManager.PENDING_UNINSTALL;
}
if (aAddon.active && (aAddon.userDisabled || aAddon.appDisabled))
pending |= AddonManager.PENDING_DISABLE;
else if (!aAddon.active && (!aAddon.userDisabled && !aAddon.appDisabled))
pending |= AddonManager.PENDING_ENABLE;
if (aAddon.pendingUpgrade)
pending |= AddonManager.PENDING_UPGRADE;
return pending;
});
this.__defineGetter__("operationsRequiringRestart", function() {
let ops = 0;
if (XPIProvider.installRequiresRestart(aAddon))
ops |= AddonManager.OP_NEEDS_RESTART_INSTALL;
if (XPIProvider.uninstallRequiresRestart(aAddon))
ops |= AddonManager.OP_NEEDS_RESTART_UNINSTALL;
if (XPIProvider.enableRequiresRestart(aAddon))
ops |= AddonManager.OP_NEEDS_RESTART_ENABLE;
if (XPIProvider.disableRequiresRestart(aAddon))
ops |= AddonManager.OP_NEEDS_RESTART_DISABLE;
return ops;
});
this.__defineGetter__("permissions", function() {
let permissions = 0;
// Add-ons that aren't installed cannot be modified in any way
if (!(aAddon instanceof DBAddonInternal))
return permissions;
if (!aAddon.appDisabled) {
if (aAddon.userDisabled)
permissions |= AddonManager.PERM_CAN_ENABLE;
else if (aAddon.type != "theme")
permissions |= AddonManager.PERM_CAN_DISABLE;
}
// Add-ons that are in locked install locations, or are pending uninstall
// cannot be upgraded or uninstalled
if (!aAddon._installLocation.locked && !aAddon.pendingUninstall) {
// Add-ons that are installed by a file link cannot be upgraded
if (!aAddon._installLocation.isLinkedAddon(aAddon.id))
permissions |= AddonManager.PERM_CAN_UPGRADE;
permissions |= AddonManager.PERM_CAN_UNINSTALL;
}
return permissions;
});
this.__defineGetter__("isActive", function() {
if (Services.appinfo.inSafeMode)
return false;
return aAddon.active;
});
this.__defineSetter__("userDisabled", function(val) {
if (val == aAddon.userDisabled)
return val;
if (aAddon instanceof DBAddonInternal) {
if (aAddon.type == "theme" && val) {
if (aAddon.internalName == XPIProvider.defaultSkin)
throw new Error("Cannot disable the default theme");
XPIProvider.enableDefaultTheme();
}
else {
XPIProvider.updateAddonDisabledState(aAddon, val);
}
}
else {
aAddon.userDisabled = val;
}
return val;
});
this.isCompatibleWith = function(aAppVersion, aPlatformVersion) {
return aAddon.isCompatibleWith(aAppVersion, aPlatformVersion);
};
this.uninstall = function() {
if (!(aAddon instanceof DBAddonInternal))
throw new Error("Cannot uninstall an add-on that isn't installed");
if (aAddon.pendingUninstall)
throw new Error("Add-on is already marked to be uninstalled");
XPIProvider.uninstallAddon(aAddon);
};
this.cancelUninstall = function() {
if (!(aAddon instanceof DBAddonInternal))
throw new Error("Cannot cancel uninstall for an add-on that isn't installed");
if (!aAddon.pendingUninstall)
throw new Error("Add-on is not marked to be uninstalled");
XPIProvider.cancelUninstallAddon(aAddon);
};
this.findUpdates = function(aListener, aReason, aAppVersion, aPlatformVersion) {
new UpdateChecker(aAddon, aListener, aReason, aAppVersion, aPlatformVersion);
};
this.hasResource = function(aPath) {
let bundle = aAddon._sourceBundle.clone();
if (bundle.isDirectory()) {
if (aPath) {
aPath.split("/").forEach(function(aPart) {
bundle.append(aPart);
});
}
return bundle.exists();
}
let zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].
createInstance(Ci.nsIZipReader);
zipReader.open(bundle);
let result = zipReader.hasEntry(aPath);
zipReader.close();
return result;
},
this.getResourceURI = function(aPath) {
let bundle = aAddon._sourceBundle.clone();
if (bundle.isDirectory()) {
if (aPath) {
aPath.split("/").forEach(function(aPart) {
bundle.append(aPart);
});
}
return Services.io.newFileURI(bundle);
}
if (!aPath)
return Services.io.newFileURI(bundle);
return buildJarURI(bundle, aPath);
}
}
/**
* An object which identifies a directory install location for add-ons. The
* location consists of a directory which contains the add-ons installed in the
* location.
*
* Each add-on installed in the location is either a directory containing the
* add-on's files or a text file containing an absolute path to the directory
* containing the add-ons files. The directory or text file must have the same
* name as the add-on's ID.
*
* There may also a special directory named "staged" which can contain
* directories with the same name as an add-on ID. If the directory is empty
* then it means the add-on will be uninstalled from this location during the
* next startup. If the directory contains the add-on's files then they will be
* installed during the next startup.
*
* @param aName
* The string identifier for the install location
* @param aDirectory
* The nsIFile directory for the install location
* @param aScope
* The scope of add-ons installed in this location
* @param aLocked
* true if add-ons cannot be installed, uninstalled or upgraded in the
* install location
*/
function DirectoryInstallLocation(aName, aDirectory, aScope, aLocked) {
this._name = aName;
this.locked = aLocked;
this._directory = aDirectory;
this._scope = aScope
this._IDToFileMap = {};
this._FileToIDMap = {};
this._linkedAddons = [];
if (!aDirectory.exists())
return;
if (!aDirectory.isDirectory())
throw new Error("Location must be a directory.");
this._readAddons();
}
DirectoryInstallLocation.prototype = {
_name : "",
_directory : null,
_IDToFileMap : null, // mapping from add-on ID to nsIFile
_FileToIDMap : null, // mapping from add-on path to add-on ID
/**
* Reads a directory linked to in a file.
*
* @param file
* The file containing the directory path
* @return a nsILocalFile object representing the linked directory.
*/
_readDirectoryFromFile: function DirInstallLocation__readDirectoryFromFile(aFile) {
let fis = Cc["@mozilla.org/network/file-input-stream;1"].
createInstance(Ci.nsIFileInputStream);
fis.init(aFile, -1, -1, false);
let line = { value: "" };
if (fis instanceof Ci.nsILineInputStream)
fis.readLine(line);
fis.close();
if (line.value) {
let linkedDirectory = Cc["@mozilla.org/file/local;1"].
createInstance(Ci.nsILocalFile);
try {
linkedDirectory.initWithPath(line.value);
}
catch (e) {
linkedDirectory.setRelativeDescriptor(file.parent, line.value);
}
if (!linkedDirectory.exists()) {
WARN("File pointer " + aFile.path + " points to " + linkedDirectory.path +
" which does not exist");
return null;
}
if (!linkedDirectory.isDirectory()) {
WARN("File pointer " + aFile.path + " points to " + linkedDirectory.path +
" which is not a directory");
return null;
}
return linkedDirectory;
}
WARN("File pointer " + aFile.path + " does not contain a path");
return null;
},
/**
* Finds all the add-ons installed in this location.
*/
_readAddons: function DirInstallLocation__readAddons() {
let entries = this._directory.directoryEntries
.QueryInterface(Ci.nsIDirectoryEnumerator);
let entry;
while (entry = entries.nextFile) {
// Should never happen really
if (!(entry instanceof Ci.nsILocalFile))
continue;
let id = entry.leafName;
if (id == DIR_STAGE || id == DIR_XPI_STAGE || id == DIR_TRASH)
continue;
let directLoad = false;
if (entry.isFile() &&
id.substring(id.length - 4).toLowerCase() == ".xpi") {
directLoad = true;
id = id.substring(0, id.length - 4);
}
if (!gIDTest.test(id)) {
LOG("Ignoring file entry whose name is not a valid add-on ID: " +
entry.path);
continue;
}
if (entry.isFile() && !directLoad) {
newEntry = this._readDirectoryFromFile(entry);
if (!newEntry)
continue;
entry = newEntry;
this._linkedAddons.push(id);
}
this._IDToFileMap[id] = entry;
this._FileToIDMap[entry.path] = id;
}
entries.close();
},
/**
* Gets the name of this install location.
*/
get name() {
return this._name;
},
/**
* Gets the scope of this install location.
*/
get scope() {
return this._scope;
},
/**
* Gets an array of nsIFiles for add-ons installed in this location.
*/
get addonLocations() {
let locations = [];
for (let id in this._IDToFileMap) {
locations.push(this._IDToFileMap[id].clone()
.QueryInterface(Ci.nsILocalFile));
}
return locations;
},
/**
* Gets the staging directory to put add-ons that are pending install and
* uninstall into.
*
* @return an nsIFile
*/
getStagingDir: function DirInstallLocation_getStagingDir() {
let dir = this._directory.clone();
dir.append(DIR_STAGE);
return dir;
},
/**
* Gets the directory used by old versions for staging XPI and JAR files ready
* to be installed.
*
* @return an nsIFile
*/
getXPIStagingDir: function DirInstallLocation_getXPIStagingDir() {
let dir = this._directory.clone();
dir.append(DIR_XPI_STAGE);
return dir;
},
/**
* Returns a directory that is normally on the same filesystem as the rest of
* the install location and can be used for temporarily storing files during
* safe move operations. Calling this method will delete the existing trash
* directory and its contents.
*
* @return an nsIFile
*/
getTrashDir: function DirInstallLocation_getTrashDir() {
let trashDir = this._directory.clone();
trashDir.append(DIR_TRASH);
if (trashDir.exists())
recursiveRemove(trashDir);
trashDir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
return trashDir;
},
/**
* Installs an add-on into the install location.
*
* @param aId
* The ID of the add-on to install
* @param aSource
* The source nsIFile to install from
* @param aExistingAddonID
* The ID of an existing add-on to uninstall at the same time
* @param aCopy
* If false the source files will be moved to the new location,
* otherwise they will only be copied
* @return an nsIFile indicating where the add-on was installed to
*/
installAddon: function DirInstallLocation_installAddon(aId, aSource,
aExistingAddonID,
aCopy) {
let trashDir = this.getTrashDir();
let transaction = new SafeInstallOperation();
let self = this;
function moveOldAddon(aId) {
let file = self._directory.clone().QueryInterface(Ci.nsILocalFile);
file.append(aId);
if (file.exists())
transaction.move(file, trashDir);
file = self._directory.clone().QueryInterface(Ci.nsILocalFile);
file.append(aId + ".xpi");
if (file.exists()) {
Services.obs.notifyObservers(file, "flush-cache-entry", null);
transaction.move(file, trashDir);
}
}
// If any of these operations fails the finally block will clean up the
// temporary directory
try {
moveOldAddon(aId);
if (aExistingAddonID && aExistingAddonID != aId)
moveOldAddon(aExistingAddonID);
if (aCopy) {
transaction.copy(aSource, this._directory);
}
else {
if (aSource.isFile())
Services.obs.notifyObservers(aSource, "flush-cache-entry", null);
transaction.move(aSource, this._directory);
}
}
finally {
// It isn't ideal if this cleanup fails but it isn't worth rolling back
// the install because of it.
try {
recursiveRemove(trashDir);
}
catch (e) {
WARN("Failed to remove trash directory when installing " + aId, e);
}
}
let newFile = this._directory.clone().QueryInterface(Ci.nsILocalFile);
newFile.append(aSource.leafName);
newFile.lastModifiedTime = Date.now();
this._FileToIDMap[newFile.path] = aId;
this._IDToFileMap[aId] = newFile;
if (aExistingAddonID && aExistingAddonID != aId &&
aExistingAddonID in this._IDToFileMap) {
delete this._FileToIDMap[this._IDToFileMap[aExistingAddonID]];
delete this._IDToFileMap[aExistingAddonID];
}
return newFile;
},
/**
* Uninstalls an add-on from this location.
*
* @param aId
* The ID of the add-on to uninstall
* @throws if the ID does not match any of the add-ons installed
*/
uninstallAddon: function DirInstallLocation_uninstallAddon(aId) {
let file = this._IDToFileMap[aId];
if (!file) {
WARN("Attempted to remove " + aId + " from " +
this._name + " but it was already gone");
return;
}
file = this._directory.clone();
file.append(aId);
if (!file.exists())
file.leafName += ".xpi";
if (!file.exists()) {
WARN("Attempted to remove " + aId + " from " +
this._name + " but it was already gone");
delete this._FileToIDMap[file.path];
delete this._IDToFileMap[aId];
return;
}
let trashDir = this.getTrashDir();
if (file.leafName != aId)
Services.obs.notifyObservers(file, "flush-cache-entry", null);
let transaction = new SafeInstallOperation();
try {
transaction.move(file, trashDir);
}
finally {
// It isn't ideal if this cleanup fails, but it is probably better than
// rolling back the uninstall at this point
try {
recursiveRemove(trashDir);
}
catch (e) {
WARN("Failed to remove trash directory when uninstalling " + aId, e);
}
}
delete this._FileToIDMap[file.path];
delete this._IDToFileMap[aId];
},
/**
* Gets the ID of the add-on installed in the given nsIFile.
*
* @param aFile
* The nsIFile to look in
* @return the ID
* @throws if the file does not represent an installed add-on
*/
getIDForLocation: function DirInstallLocation_getIDForLocation(aFile) {
if (aFile.path in this._FileToIDMap)
return this._FileToIDMap[aFile.path];
throw new Error("Unknown add-on location " + aFile.path);
},
/**
* Gets the directory that the add-on with the given ID is installed in.
*
* @param aId
* The ID of the add-on
* @return the nsILocalFile
* @throws if the ID does not match any of the add-ons installed
*/
getLocationForID: function DirInstallLocation_getLocationForID(aId) {
if (aId in this._IDToFileMap)
return this._IDToFileMap[aId].clone().QueryInterface(Ci.nsILocalFile);
throw new Error("Unknown add-on ID " + aId);
},
/**
* Returns true if the given addon was installed in this location by a text
* file pointing to its real path.
*
* @param aId
* The ID of the addon
*/
isLinkedAddon: function(aId) {
return this._linkedAddons.indexOf(aId) != -1;
}
};
#ifdef XP_WIN
/**
* An object that identifies a registry install location for add-ons. The location
* consists of a registry key which contains string values mapping ID to the
* path where an add-on is installed
*
* @param aName
* The string identifier of this Install Location.
* @param aRootKey
* The root key (one of the ROOT_KEY_ values from nsIWindowsRegKey).
* @param scope
* The scope of add-ons installed in this location
*/
function WinRegInstallLocation(aName, aRootKey, aScope) {
this.locked = true;
this._name = aName;
this._rootKey = aRootKey;
this._scope = aScope;
this._IDToFileMap = {};
this._FileToIDMap = {};
let path = this._appKeyPath + "\\Extensions";
let key = Cc["@mozilla.org/windows-registry-key;1"].
createInstance(Ci.nsIWindowsRegKey);
// Reading the registry may throw an exception, and that's ok. In error
// cases, we just leave ourselves in the empty state.
try {
key.open(this._rootKey, path, Ci.nsIWindowsRegKey.ACCESS_READ);
}
catch (e) {
return;
}
this._readAddons(key);
key.close();
}
WinRegInstallLocation.prototype = {
_name : "",
_rootKey : null,
_scope : null,
_IDToFileMap : null, // mapping from ID to nsIFile
_FileToIDMap : null, // mapping from path to ID
/**
* Retrieves the path of this Application's data key in the registry.
*/
get _appKeyPath() {
let appVendor = Services.appinfo.vendor;
let appName = Services.appinfo.name;
#ifdef MOZ_THUNDERBIRD
// XXX Thunderbird doesn't specify a vendor string
if (appVendor == "")
appVendor = "Mozilla";
#endif
// XULRunner-based apps may intentionally not specify a vendor
if (appVendor != "")
appVendor += "\\";
return "SOFTWARE\\" + appVendor + appName;
},
/**
* Read the registry and build a mapping between ID and path for each
* installed add-on.
*
* @param key
* The key that contains the ID to path mapping
*/
_readAddons: function RegInstallLocation__readAddons(aKey) {
let count = aKey.valueCount;
for (let i = 0; i < count; ++i) {
let id = aKey.getValueName(i);
let file = Cc["@mozilla.org/file/local;1"].
createInstance(Ci.nsILocalFile);
file.initWithPath(aKey.readStringValue(id));
if (!file.exists()) {
WARN("Ignoring missing add-on in " + file.path);
continue;
}
this._IDToFileMap[id] = file;
this._FileToIDMap[file.path] = id;
}
},
/**
* Gets the name of this install location.
*/
get name() {
return this._name;
},
/**
* Gets the scope of this install location.
*/
get scope() {
return this._scope;
},
/**
* Gets an array of nsIFiles for add-ons installed in this location.
*/
get addonLocations() {
let locations = [];
for (let id in this._IDToFileMap) {
locations.push(this._IDToFileMap[id].clone()
.QueryInterface(Ci.nsILocalFile));
}
return locations;
},
/**
* Gets the ID of the add-on installed in the given nsIFile.
*
* @param aFile
* The nsIFile to look in
* @return the ID
* @throws if the file does not represent an installed add-on
*/
getIDForLocation: function RegInstallLocation_getIDForLocation(aFile) {
if (aFile.path in this._FileToIDMap)
return this._FileToIDMap[aFile.path];
throw new Error("Unknown add-on location");
},
/**
* Gets the nsIFile that the add-on with the given ID is installed in.
*
* @param aId
* The ID of the add-on
* @return the nsIFile
*/
getLocationForID: function RegInstallLocation_getLocationForID(aId) {
if (aId in this._IDToFileMap)
return this._IDToFileMap[aId].clone().QueryInterface(Ci.nsILocalFile);
throw new Error("Unknown add-on ID");
},
/**
* @see DirectoryInstallLocation
*/
isLinkedAddon: function(aId) {
return true;
}
};
#endif
AddonManagerPrivate.registerProvider(XPIProvider);