mirror of
https://github.com/pierre42100/comunic
synced 2024-11-17 02:51:13 +00:00
96 lines
3.1 KiB
JavaScript
Executable File
96 lines
3.1 KiB
JavaScript
Executable File
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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/*
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Copyright 2013 Mozilla Foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/* globals chrome */
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'use strict';
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(function ExtensionRouterClosure() {
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var VIEWER_URL = chrome.extension.getURL('content/web/viewer.html');
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var CRX_BASE_URL = chrome.extension.getURL('/');
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var schemes = [
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'http',
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'https',
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'ftp',
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'file',
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'chrome-extension',
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// Chromium OS
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'filesystem',
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// Chromium OS, shorthand for filesystem:<origin>/external/
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'drive'
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];
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/**
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* @param {string} url The URL prefixed with chrome-extension://.../
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* @return {string|undefined} The percent-encoded URL of the (PDF) file.
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*/
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function parseExtensionURL(url) {
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url = url.substring(CRX_BASE_URL.length);
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// Find the (url-encoded) colon and verify that the scheme is whitelisted.
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var schemeIndex = url.search(/:|%3A/i);
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if (schemeIndex === -1) {
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return;
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}
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var scheme = url.slice(0, schemeIndex).toLowerCase();
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if (schemes.indexOf(scheme) >= 0) {
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url = url.split('#')[0];
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if (url.charAt(schemeIndex) === ':') {
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url = encodeURIComponent(url);
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}
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return url;
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}
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}
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// TODO(rob): Use declarativeWebRequest once declared URL-encoding is
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// supported, see http://crbug.com/273589
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// (or rewrite the query string parser in viewer.js to get it to
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// recognize the non-URL-encoded PDF URL.)
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chrome.webRequest.onBeforeRequest.addListener(function(details) {
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// This listener converts chrome-extension://.../http://...pdf to
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// chrome-extension://.../content/web/viewer.html?file=http%3A%2F%2F...pdf
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var url = parseExtensionURL(details.url);
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if (url) {
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url = VIEWER_URL + '?file=' + url;
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var i = details.url.indexOf('#');
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if (i > 0) {
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url += details.url.slice(i);
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}
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console.log('Redirecting ' + details.url + ' to ' + url);
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return { redirectUrl: url };
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}
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}, {
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types: ['main_frame', 'sub_frame'],
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urls: schemes.map(function(scheme) {
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// Format: "chrome-extension://[EXTENSIONID]/<scheme>*"
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return CRX_BASE_URL + scheme + '*';
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})
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}, ['blocking']);
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// When session restore is used, viewer pages may be loaded before the
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// webRequest event listener is attached (= page not found).
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// Reload these tabs.
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chrome.tabs.query({
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url: CRX_BASE_URL + '*:*'
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}, function(tabsFromLastSession) {
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for (var i = 0; i < tabsFromLastSession.length; ++i) {
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chrome.tabs.reload(tabsFromLastSession[i].id);
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}
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});
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console.log('Set up extension URL router.');
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})();
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