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-rw-r--r--ext/mixed/js/frame-client.js173
1 files changed, 0 insertions, 173 deletions
diff --git a/ext/mixed/js/frame-client.js b/ext/mixed/js/frame-client.js
deleted file mode 100644
index d15cee30..00000000
--- a/ext/mixed/js/frame-client.js
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * Copyright (C) 2020-2021 Yomichan Authors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
-
-class FrameClient {
- constructor() {
- this._secret = null;
- this._token = null;
- this._frameId = null;
- }
-
- get frameId() {
- return this._frameId;
- }
-
- async connect(frame, targetOrigin, hostFrameId, setupFrame, timeout=10000) {
- const {secret, token, frameId} = await this._connectIternal(frame, targetOrigin, hostFrameId, setupFrame, timeout);
- this._secret = secret;
- this._token = token;
- this._frameId = frameId;
- }
-
- isConnected() {
- return (this._secret !== null);
- }
-
- createMessage(data) {
- if (!this.isConnected()) {
- throw new Error('Not connected');
- }
- return {
- token: this._token,
- secret: this._secret,
- data
- };
- }
-
- _connectIternal(frame, targetOrigin, hostFrameId, setupFrame, timeout) {
- return new Promise((resolve, reject) => {
- const tokenMap = new Map();
- let timer = null;
- let {
- promise: frameLoadedPromise,
- resolve: frameLoadedResolve,
- reject: frameLoadedReject
- } = deferPromise();
-
- const postMessage = (action, params) => {
- const contentWindow = frame.contentWindow;
- if (contentWindow === null) { throw new Error('Frame missing content window'); }
-
- let validOrigin = true;
- try {
- validOrigin = (contentWindow.location.origin === targetOrigin);
- } catch (e) {
- // NOP
- }
- if (!validOrigin) { throw new Error('Unexpected frame origin'); }
-
- contentWindow.postMessage({action, params}, targetOrigin);
- };
-
- const onMessage = (message) => {
- onMessageInner(message);
- return false;
- };
-
- const onMessageInner = async (message) => {
- try {
- if (!isObject(message)) { return; }
- const {action, params} = message;
- if (!isObject(params)) { return; }
- await frameLoadedPromise;
- if (timer === null) { return; } // Done
-
- switch (action) {
- case 'frameEndpointReady':
- {
- const {secret} = params;
- const token = generateId(16);
- tokenMap.set(secret, token);
- postMessage('frameEndpointConnect', {secret, token, hostFrameId});
- }
- break;
- case 'frameEndpointConnected':
- {
- const {secret, token} = params;
- const frameId = message.frameId;
- const token2 = tokenMap.get(secret);
- if (typeof token2 !== 'undefined' && token === token2) {
- cleanup();
- resolve({secret, token, frameId});
- }
- }
- break;
- }
- } catch (e) {
- cleanup();
- reject(e);
- }
- };
-
- const onLoad = () => {
- if (frameLoadedResolve === null) {
- cleanup();
- reject(new Error('Unexpected load event'));
- return;
- }
-
- if (FrameClient.isFrameAboutBlank(frame)) {
- return;
- }
-
- frameLoadedResolve();
- frameLoadedResolve = null;
- frameLoadedReject = null;
- };
-
- const cleanup = () => {
- if (timer === null) { return; } // Done
- clearTimeout(timer);
- timer = null;
-
- frameLoadedResolve = null;
- if (frameLoadedReject !== null) {
- frameLoadedReject(new Error('Terminated'));
- frameLoadedReject = null;
- }
-
- chrome.runtime.onMessage.removeListener(onMessage);
- frame.removeEventListener('load', onLoad);
- };
-
- // Start
- timer = setTimeout(() => {
- cleanup();
- reject(new Error('Timeout'));
- }, timeout);
-
- chrome.runtime.onMessage.addListener(onMessage);
- frame.addEventListener('load', onLoad);
-
- // Prevent unhandled rejections
- frameLoadedPromise.catch(() => {}); // NOP
-
- setupFrame(frame);
- });
- }
-
- static isFrameAboutBlank(frame) {
- try {
- const contentDocument = frame.contentDocument;
- if (contentDocument === null) { return false; }
- const url = contentDocument.location.href;
- return /^about:blank(?:[#?]|$)/.test(url);
- } catch (e) {
- return false;
- }
- }
-}