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Diffstat (limited to '')
| -rw-r--r-- | toolkit/mozapps/extensions/amManager.sys.mjs | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/toolkit/mozapps/extensions/amManager.sys.mjs b/toolkit/mozapps/extensions/amManager.sys.mjs new file mode 100644 index 0000000000..4f04bfe39d --- /dev/null +++ b/toolkit/mozapps/extensions/amManager.sys.mjs @@ -0,0 +1,359 @@ +/* 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/. */ + +/** + * This component serves as integration between the platform and AddonManager. + * It is responsible for initializing and shutting down the AddonManager as well + * as passing new installs from webpages to the AddonManager. + */ + +import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs"; + +const lazy = {}; +XPCOMUtils.defineLazyPreferenceGetter( + lazy, + "separatePrivilegedMozillaWebContentProcess", + "browser.tabs.remote.separatePrivilegedMozillaWebContentProcess", + false +); +XPCOMUtils.defineLazyPreferenceGetter( + lazy, + "extensionsWebAPITesting", + "extensions.webapi.testing", + false +); + +// The old XPInstall error codes +const EXECUTION_ERROR = -203; +const CANT_READ_ARCHIVE = -207; +const USER_CANCELLED = -210; +const DOWNLOAD_ERROR = -228; +const UNSUPPORTED_TYPE = -244; +const SUCCESS = 0; + +const MSG_INSTALL_ENABLED = "WebInstallerIsInstallEnabled"; +const MSG_INSTALL_ADDON = "WebInstallerInstallAddonFromWebpage"; +const MSG_INSTALL_CALLBACK = "WebInstallerInstallCallback"; + +const MSG_PROMISE_REQUEST = "WebAPIPromiseRequest"; +const MSG_PROMISE_RESULT = "WebAPIPromiseResult"; +const MSG_INSTALL_EVENT = "WebAPIInstallEvent"; +const MSG_INSTALL_CLEANUP = "WebAPICleanup"; +const MSG_ADDON_EVENT_REQ = "WebAPIAddonEventRequest"; +const MSG_ADDON_EVENT = "WebAPIAddonEvent"; + +var AddonManager, AddonManagerPrivate; + +export function amManager() { + ({ AddonManager, AddonManagerPrivate } = ChromeUtils.importESModule( + "resource://gre/modules/AddonManager.sys.mjs" + )); + + Services.mm.addMessageListener(MSG_INSTALL_ENABLED, this); + Services.mm.addMessageListener(MSG_PROMISE_REQUEST, this); + Services.mm.addMessageListener(MSG_INSTALL_CLEANUP, this); + Services.mm.addMessageListener(MSG_ADDON_EVENT_REQ, this); + + Services.ppmm.addMessageListener(MSG_INSTALL_ADDON, this); + + Services.obs.addObserver(this, "message-manager-close"); + Services.obs.addObserver(this, "message-manager-disconnect"); + + AddonManager.webAPI.setEventHandler(this.sendEvent); + + // Needed so receiveMessage can be called directly by JS callers + this.wrappedJSObject = this; +} + +amManager.prototype = { + observe(aSubject, aTopic, aData) { + switch (aTopic) { + case "addons-startup": + AddonManagerPrivate.startup(); + break; + + case "message-manager-close": + case "message-manager-disconnect": + this.childClosed(aSubject); + break; + } + }, + + installAddonFromWebpage(aPayload, aBrowser, aCallback) { + let retval = true; + + const { mimetype, triggeringPrincipal, hash, icon, name, uri } = aPayload; + + // NOTE: consider removing this call to isInstallAllowed from here, later it is going to be called + // again from inside AddonManager.installAddonFromWebpage as part of the block/allow logic. + // + // The sole purpose of the call here seems to be "clearing the optional InstallTrigger callback", + // which seems to be actually wrong if we are still proceeding to call getInstallForURL and the same + // logic used to block the install flow using the exact same method call later on. + if (!AddonManager.isInstallAllowed(mimetype, triggeringPrincipal)) { + aCallback = null; + retval = false; + } + + let telemetryInfo = { + source: AddonManager.getInstallSourceFromHost(aPayload.sourceHost), + sourceURL: aPayload.sourceURL, + }; + + if ("method" in aPayload) { + telemetryInfo.method = aPayload.method; + } + + AddonManager.getInstallForURL(uri, { + hash, + name, + icon, + browser: aBrowser, + triggeringPrincipal, + telemetryInfo, + sendCookies: true, + }).then(aInstall => { + function callCallback(status) { + try { + aCallback?.onInstallEnded(uri, status); + } catch (e) { + Cu.reportError(e); + } + } + + if (!aInstall) { + callCallback(UNSUPPORTED_TYPE); + return; + } + + if (aCallback) { + aInstall.addListener({ + onDownloadCancelled(aInstall) { + callCallback(USER_CANCELLED); + }, + + onDownloadFailed(aInstall) { + if (aInstall.error == AddonManager.ERROR_CORRUPT_FILE) { + callCallback(CANT_READ_ARCHIVE); + } else { + callCallback(DOWNLOAD_ERROR); + } + }, + + onInstallFailed(aInstall) { + callCallback(EXECUTION_ERROR); + }, + + onInstallEnded(aInstall, aStatus) { + callCallback(SUCCESS); + }, + }); + } + + AddonManager.installAddonFromWebpage( + mimetype, + aBrowser, + triggeringPrincipal, + aInstall, + { + hasCrossOriginAncestor: aPayload.hasCrossOriginAncestor, + } + ); + }); + + return retval; + }, + + notify(aTimer) { + AddonManagerPrivate.backgroundUpdateTimerHandler(); + }, + + // Maps message manager instances for content processes to the associated + // AddonListener instances. + addonListeners: new Map(), + + _addAddonListener(target) { + if (!this.addonListeners.has(target)) { + let handler = (event, id) => { + target.sendAsyncMessage(MSG_ADDON_EVENT, { event, id }); + }; + let listener = { + onEnabling: addon => handler("onEnabling", addon.id), + onEnabled: addon => handler("onEnabled", addon.id), + onDisabling: addon => handler("onDisabling", addon.id), + onDisabled: addon => handler("onDisabled", addon.id), + onInstalling: addon => handler("onInstalling", addon.id), + onInstalled: addon => handler("onInstalled", addon.id), + onUninstalling: addon => handler("onUninstalling", addon.id), + onUninstalled: addon => handler("onUninstalled", addon.id), + onOperationCancelled: addon => + handler("onOperationCancelled", addon.id), + }; + this.addonListeners.set(target, listener); + AddonManager.addAddonListener(listener); + } + }, + + _removeAddonListener(target) { + if (this.addonListeners.has(target)) { + AddonManager.removeAddonListener(this.addonListeners.get(target)); + this.addonListeners.delete(target); + } + }, + + /** + * messageManager callback function. + * + * Listens to requests from child processes for InstallTrigger + * activity, and sends back callbacks. + */ + receiveMessage(aMessage) { + let payload = aMessage.data; + + switch (aMessage.name) { + case MSG_INSTALL_ENABLED: + return AddonManager.isInstallEnabled(payload.mimetype); + + case MSG_INSTALL_ADDON: { + let browser = payload.browsingContext.top.embedderElement; + + let callback = null; + if (payload.callbackID != -1) { + let mm = browser.messageManager; + callback = { + onInstallEnded(url, status) { + mm.sendAsyncMessage(MSG_INSTALL_CALLBACK, { + callbackID: payload.callbackID, + url, + status, + }); + }, + }; + } + + return this.installAddonFromWebpage(payload, browser, callback); + } + + case MSG_PROMISE_REQUEST: { + if ( + !lazy.extensionsWebAPITesting && + lazy.separatePrivilegedMozillaWebContentProcess && + aMessage.target && + aMessage.target.remoteType != null && + aMessage.target.remoteType !== "privilegedmozilla" + ) { + return undefined; + } + + let mm = aMessage.target.messageManager; + let resolve = value => { + mm.sendAsyncMessage(MSG_PROMISE_RESULT, { + callbackID: payload.callbackID, + resolve: value, + }); + }; + let reject = value => { + mm.sendAsyncMessage(MSG_PROMISE_RESULT, { + callbackID: payload.callbackID, + reject: value, + }); + }; + + let API = AddonManager.webAPI; + if (payload.type in API) { + API[payload.type](aMessage.target, ...payload.args).then( + resolve, + reject + ); + } else { + reject("Unknown Add-on API request."); + } + break; + } + + case MSG_INSTALL_CLEANUP: { + if ( + !lazy.extensionsWebAPITesting && + lazy.separatePrivilegedMozillaWebContentProcess && + aMessage.target && + aMessage.target.remoteType != null && + aMessage.target.remoteType !== "privilegedmozilla" + ) { + return undefined; + } + + AddonManager.webAPI.clearInstalls(payload.ids); + break; + } + + case MSG_ADDON_EVENT_REQ: { + if ( + !lazy.extensionsWebAPITesting && + lazy.separatePrivilegedMozillaWebContentProcess && + aMessage.target && + aMessage.target.remoteType != null && + aMessage.target.remoteType !== "privilegedmozilla" + ) { + return undefined; + } + + let target = aMessage.target.messageManager; + if (payload.enabled) { + this._addAddonListener(target); + } else { + this._removeAddonListener(target); + } + } + } + return undefined; + }, + + childClosed(target) { + AddonManager.webAPI.clearInstallsFrom(target); + this._removeAddonListener(target); + }, + + sendEvent(mm, data) { + mm.sendAsyncMessage(MSG_INSTALL_EVENT, data); + }, + + classID: Components.ID("{4399533d-08d1-458c-a87a-235f74451cfa}"), + QueryInterface: ChromeUtils.generateQI([ + "amIAddonManager", + "nsITimerCallback", + "nsIObserver", + ]), +}; + +const BLOCKLIST_JSM = "resource://gre/modules/Blocklist.jsm"; +ChromeUtils.defineModuleGetter(lazy, "Blocklist", BLOCKLIST_JSM); + +export function BlocklistService() { + this.wrappedJSObject = this; +} + +BlocklistService.prototype = { + STATE_NOT_BLOCKED: Ci.nsIBlocklistService.STATE_NOT_BLOCKED, + STATE_SOFTBLOCKED: Ci.nsIBlocklistService.STATE_SOFTBLOCKED, + STATE_BLOCKED: Ci.nsIBlocklistService.STATE_BLOCKED, + + get isLoaded() { + return Cu.isModuleLoaded(BLOCKLIST_JSM) && lazy.Blocklist.isLoaded; + }, + + observe(...args) { + return lazy.Blocklist.observe(...args); + }, + + notify() { + lazy.Blocklist.notify(); + }, + + classID: Components.ID("{66354bc9-7ed1-4692-ae1d-8da97d6b205e}"), + QueryInterface: ChromeUtils.generateQI([ + "nsIObserver", + "nsIBlocklistService", + "nsITimerCallback", + ]), +}; |