forked from mirrors/gecko-dev
66 lines
2.4 KiB
JavaScript
66 lines
2.4 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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/* eslint-env mozilla/chrome-worker */
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"use strict";
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importScripts("resource://gre/modules/osfile.jsm");
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const FILE_ENTRY = "201: ";
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onmessage = async function(msg) {
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try {
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let extractedPaths = [];
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let jarPath = "jar:file://" + msg.data.zipPath + "!/";
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let jarResponse = await fetch(jarPath);
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let dirListing = await jarResponse.text();
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let lines = dirListing.split("\n");
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let reader = new FileReader();
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for (let line of lines) {
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if (!line.startsWith(FILE_ENTRY)) {
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// Not a file entry, skip.
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continue;
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}
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let lineSplits = line.split(" ");
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let fileName = lineSplits[1];
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// We don't need these types of files.
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if (fileName == "verified_contents.json" ||
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fileName == "icon-128x128.png") {
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continue;
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}
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let filePath = jarPath + fileName;
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let filePathResponse = await fetch(filePath);
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let fileContents = await filePathResponse.blob();
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let fileData = await new Promise(resolve => {
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reader.onloadend = function() { resolve(reader.result); };
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reader.readAsArrayBuffer(fileContents);
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});
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let profileDirPath = OS.Constants.Path.profileDir;
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let installToDirPath = OS.Path.join(profileDirPath,
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msg.data.relativeInstallPath);
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await OS.File.makeDir(installToDirPath, {ignoreExisting: true,
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unixMode: 0o755,
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from: profileDirPath});
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// Do not extract into directories. Extract all files to the same
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// directory.
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let destPath = OS.Path.join(installToDirPath, fileName);
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await OS.File.writeAtomic(destPath, new Uint8Array(fileData),
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{tmpPath: destPath + ".tmp"});
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// Ensure files are writable and executable. Otherwise, we may be
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// unable to execute or uninstall them.
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await OS.File.setPermissions(destPath, {unixMode: 0o700});
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extractedPaths.push(destPath);
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}
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postMessage({
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"result": "success",
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extractedPaths
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});
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} catch (e) {
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postMessage({
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"result": "fail",
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"exception": e.message
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});
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}
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};
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