12ab72b8a0
* Default log implementation for unprivileged content * Export methods of a ConsoleAPI instance into the content frame to replace the default log * Initialize the content logger when the "initializeRequest" message is received MozReview-Commit-ID: 8hiaIqf2ChX
85 lines
2.5 KiB
JavaScript
85 lines
2.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This frame script only exists to mediate communications between the
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* unprivileged frame in a content process and the privileged dialog wrapper
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* in the UI process on the main thread.
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*
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* `paymentChromeToContent` messages from the privileged wrapper are converted
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* into DOM events of the same name.
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* `paymentContentToChrome` custom DOM events from the unprivileged frame are
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* converted into messages of the same name.
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*
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* Business logic should stay out of this shim.
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*/
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"use strict";
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/* eslint-env mozilla/frame-script */
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ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
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let PaymentFrameScript = {
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init() {
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XPCOMUtils.defineLazyGetter(this, "log", () => {
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let {ConsoleAPI} = ChromeUtils.import("resource://gre/modules/Console.jsm", {});
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return new ConsoleAPI({
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maxLogLevelPref: "dom.payments.loglevel",
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prefix: "paymentDialogFrameScript",
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});
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});
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addEventListener("paymentContentToChrome", this, false, true);
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addMessageListener("paymentChromeToContent", this);
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},
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handleEvent(event) {
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this.sendToChrome(event);
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},
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receiveMessage({data: {messageType, data}}) {
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this.sendToContent(messageType, data);
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},
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setupContentConsole() {
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let privilegedLogger = content.window.console.createInstance({
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maxLogLevelPref: "dom.payments.loglevel",
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prefix: "paymentDialogContent",
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});
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let contentLogObject = Cu.waiveXrays(content).log;
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for (let name of ["error", "warn", "info", "debug"]) {
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Cu.exportFunction(privilegedLogger[name].bind(privilegedLogger), contentLogObject, {
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defineAs: name,
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});
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}
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},
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sendToChrome({detail}) {
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let {messageType} = detail;
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if (messageType == "initializeRequest") {
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this.setupContentConsole();
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}
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this.log.debug("sendToChrome:", messageType, detail);
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this.sendMessageToChrome(messageType, detail);
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},
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sendToContent(messageType, detail = {}) {
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this.log.debug("sendToContent", messageType, detail);
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let response = Object.assign({messageType}, detail);
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let event = new content.CustomEvent("paymentChromeToContent", {
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detail: Cu.cloneInto(response, content),
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});
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content.dispatchEvent(event);
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},
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sendMessageToChrome(messageType, data = {}) {
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sendAsyncMessage("paymentContentToChrome", Object.assign(data, {messageType}));
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},
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};
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PaymentFrameScript.init();
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