gecko/toolkit/mozapps/extensions/PluginProvider.jsm

330 lines
9.8 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const Cc = Components.classes;
const Ci = Components.interfaces;
var EXPORTED_SYMBOLS = [];
Components.utils.import("resource://gre/modules/AddonManager.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
const URI_EXTENSION_STRINGS = "chrome://mozapps/locale/extensions/extensions.properties";
const STRING_TYPE_NAME = "type.%ID%.name";
["LOG", "WARN", "ERROR"].forEach(function(aName) {
this.__defineGetter__(aName, function() {
Components.utils.import("resource://gre/modules/AddonLogging.jsm");
LogManager.getLogger("addons.plugins", this);
return this[aName];
});
}, this);
function getIDHashForString(aStr) {
// return the two-digit hexadecimal code for a byte
function toHexString(charCode)
("0" + charCode.toString(16)).slice(-2);
let hasher = Cc["@mozilla.org/security/hash;1"].
createInstance(Ci.nsICryptoHash);
hasher.init(Ci.nsICryptoHash.MD5);
let stringStream = Cc["@mozilla.org/io/string-input-stream;1"].
createInstance(Ci.nsIStringInputStream);
stringStream.data = aStr ? aStr : "null";
hasher.updateFromStream(stringStream, -1);
// convert the binary hash data to a hex string.
let binary = hasher.finish(false);
let hash = [toHexString(binary.charCodeAt(i)) for (i in binary)].join("").toLowerCase();
return "{" + hash.substr(0, 8) + "-" +
hash.substr(8, 4) + "-" +
hash.substr(12, 4) + "-" +
hash.substr(16, 4) + "-" +
hash.substr(20) + "}";
}
var PluginProvider = {
// A dictionary mapping IDs to names and descriptions
plugins: null,
/**
* Called when the application is shutting down. Only necessary for tests
* to be able to simulate a shutdown.
*/
shutdown: function PL_shutdown() {
this.plugins = null;
},
/**
* 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 PL_getAddon(aId, aCallback) {
if (!this.plugins)
this.buildPluginList();
if (aId in this.plugins) {
let name = this.plugins[aId].name;
let description = this.plugins[aId].description;
let tags = this.plugins[aId].tags;
aCallback(new PluginWrapper(aId, name, description, tags));
}
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 callback
* A callback to pass an array of Addons to
*/
getAddonsByTypes: function PL_getAddonsByTypes(aTypes, aCallback) {
if (aTypes && aTypes.indexOf("plugin") < 0) {
aCallback([]);
return;
}
if (!this.plugins)
this.buildPluginList();
let results = [];
for (let id in this.plugins) {
this.getAddonByID(id, function(aAddon) {
results.push(aAddon);
});
}
aCallback(results);
},
/**
* 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 PL_getAddonsWithOperationsByTypes(aTypes, aCallback) {
aCallback([]);
},
/**
* Called to get the current AddonInstalls, optionally restricting by type.
*
* @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 PL_getInstallsByTypes(aTypes, aCallback) {
aCallback([]);
},
buildPluginList: function PL_buildPluginList() {
let tags = Cc["@mozilla.org/plugin/host;1"].
getService(Ci.nsIPluginHost).
getPluginTags({});
this.plugins = {};
let plugins = {};
tags.forEach(function(aTag) {
if (!(aTag.name in plugins))
plugins[aTag.name] = {};
if (!(aTag.description in plugins[aTag.name])) {
let plugin = {
name: aTag.name,
description: aTag.description,
tags: [aTag]
};
let id = getIDHashForString(aTag.name + aTag.description);
plugins[aTag.name][aTag.description] = plugin;
this.plugins[id] = plugin;
}
else {
plugins[aTag.name][aTag.description].tags.push(aTag);
}
}, this);
}
};
/**
* The PluginWrapper wraps a set of nsIPluginTags to provide the data visible to
* public callers through the API.
*/
function PluginWrapper(aId, aName, aDescription, aTags) {
let safedesc = aDescription.replace(/<\/?[a-z][^>]*>/gi, " ");
let homepageURL = null;
if (/<A\s+HREF=[^>]*>/i.test(aDescription))
homepageURL = /<A\s+HREF=["']?([^>"'\s]*)/i.exec(aDescription)[1];
this.__defineGetter__("id", function() aId);
this.__defineGetter__("type", function() "plugin");
this.__defineGetter__("name", function() aName);
this.__defineGetter__("creator", function() null);
this.__defineGetter__("description", function() safedesc);
this.__defineGetter__("version", function() aTags[0].version);
this.__defineGetter__("homepageURL", function() homepageURL);
this.__defineGetter__("isActive", function() !aTags[0].blocklisted && !aTags[0].disabled);
this.__defineGetter__("appDisabled", function() aTags[0].blocklisted);
this.__defineGetter__("userDisabled", function() aTags[0].disabled);
this.__defineSetter__("userDisabled", function(aVal) {
if (aTags[0].disabled == aVal)
return;
aTags.forEach(function(aTag) {
aTag.disabled = aVal;
});
AddonManagerPrivate.callAddonListeners(aVal ? "onDisabling" : "onEnabling", this, false);
AddonManagerPrivate.callAddonListeners(aVal ? "onDisabled" : "onEnabled", this);
return aVal;
});
this.__defineGetter__("blocklistState", function() {
let bs = Cc["@mozilla.org/extensions/blocklist;1"].
getService(Ci.nsIBlocklistService);
return bs.getPluginBlocklistState(aTags[0]);
});
this.__defineGetter__("blocklistURL", function() {
let bs = Cc["@mozilla.org/extensions/blocklist;1"].
getService(Ci.nsIBlocklistService);
return bs.getPluginBlocklistURL(aTags[0]);
});
this.__defineGetter__("size", function() {
function getDirectorySize(aFile) {
let size = 0;
let entries = aFile.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
let entry;
while (entry = entries.nextFile) {
if (entry.isSymlink() || !entry.isDirectory())
size += entry.fileSize;
else
size += getDirectorySize(entry);
}
entries.close();
return size;
}
let size = 0;
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
aTags.forEach(function(aTag) {
file.initWithPath(aTag.fullpath);
if (file.isDirectory())
size += getDirectorySize(file);
else
size += file.fileSize;
});
return size;
});
this.__defineGetter__("installDate", function() {
let date = 0;
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
aTags.forEach(function(aTag) {
file.initWithPath(aTag.fullpath);
date = Math.max(date, file.lastModifiedTime);
});
return new Date(date);
});
this.__defineGetter__("scope", function() {
let path = aTags[0].fullpath;
// Plugins inside the application directory are in the application scope
let dir = Services.dirsvc.get("APlugns", Ci.nsIFile);
if (path.substring(0, dir.path.length) == dir.path)
return AddonManager.SCOPE_APPLICATION;
// Plugins inside the profile directory are in the profile scope
dir = Services.dirsvc.get("ProfD", Ci.nsIFile);
if (path.substring(0, dir.path.length) == dir.path)
return AddonManager.SCOPE_PROFILE;
// Plugins anywhere else in the user's home are in the user scope
dir = Services.dirsvc.get("Home", Ci.nsIFile);
if (path.substring(0, dir.path.length) == dir.path)
return AddonManager.SCOPE_USER;
// Any other locations are system scope
return AddonManager.SCOPE_SYSTEM;
});
this.__defineGetter__("pendingOperations", function() {
return AddonManager.PENDING_NONE;
});
this.__defineGetter__("operationsRequiringRestart", function() {
return AddonManager.OP_NEEDS_RESTART_NONE;
});
this.__defineGetter__("permissions", function() {
let permissions = 0;
if (!this.appDisabled) {
if (this.userDisabled)
permissions |= AddonManager.PERM_CAN_ENABLE;
else
permissions |= AddonManager.PERM_CAN_DISABLE;
}
return permissions;
});
}
PluginWrapper.prototype = {
get updateDate() {
return this.installDate;
},
get isCompatible() {
return true;
},
get isPlatformCompatible() {
return true;
},
get providesUpdatesSecurely() {
return true;
},
get foreignInstall() {
return true;
},
isCompatibleWith: function(aAppVerison, aPlatformVersion) {
return true;
},
findUpdates: function(aListener, aReason, aAppVersion, aPlatformVersion) {
if ("onNoCompatibilityUpdateAvailable" in aListener)
aListener.onNoCompatibilityUpdateAvailable(this);
if ("onNoUpdateAvailable" in aListener)
aListener.onNoUpdateAvailable(this);
if ("onUpdateFinished" in aListener)
aListener.onUpdateFinished(this);
}
};
AddonManagerPrivate.registerProvider(PluginProvider, [
new AddonManagerPrivate.AddonType("plugin", URI_EXTENSION_STRINGS,
STRING_TYPE_NAME,
AddonManager.VIEW_TYPE_LIST, 6000)
]);