The Tor Browser: addon-sdk/source/lib/sdk/io/file.js@129ffea94266 (annotated)

addon-sdk/source/lib/sdk/io/file.js@129ffea94266 (annotated)

addon-sdk/source/lib/sdk/io/file.js

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 /* 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/. */
 "use strict";
 module.metadata = {
   "stability": "experimental"
 };
 const {Cc,Ci,Cr} = require("chrome");
 const byteStreams = require("./byte-streams");
 const textStreams = require("./text-streams");
 // Flags passed when opening a file.  See nsprpub/pr/include/prio.h.
 const OPEN_FLAGS = {
   RDONLY: parseInt("0x01"),
   WRONLY: parseInt("0x02"),
   CREATE_FILE: parseInt("0x08"),
   APPEND: parseInt("0x10"),
   TRUNCATE: parseInt("0x20"),
   EXCL: parseInt("0x80")
 };
 var dirsvc = Cc["@mozilla.org/file/directory_service;1"]
              .getService(Ci.nsIProperties);
 function MozFile(path) {
   var file = Cc['@mozilla.org/file/local;1']
              .createInstance(Ci.nsILocalFile);
   file.initWithPath(path);
   return file;
 }
 function ensureReadable(file) {
   if (!file.isReadable())
     throw new Error("path is not readable: " + file.path);
 }
 function ensureDir(file) {
   ensureExists(file);
   if (!file.isDirectory())
     throw new Error("path is not a directory: " + file.path);
 }
 function ensureFile(file) {
   ensureExists(file);
   if (!file.isFile())
     throw new Error("path is not a file: " + file.path);
 }
 function ensureExists(file) {
   if (!file.exists())
     throw friendlyError(Cr.NS_ERROR_FILE_NOT_FOUND, file.path);
 }
 function friendlyError(errOrResult, filename) {
   var isResult = typeof(errOrResult) === "number";
   var result = isResult ? errOrResult : errOrResult.result;
   switch (result) {
   case Cr.NS_ERROR_FILE_NOT_FOUND:
     return new Error("path does not exist: " + filename);
   }
   return isResult ? new Error("XPCOM error code: " + errOrResult) : errOrResult;
 }
 exports.exists = function exists(filename) {
   return MozFile(filename).exists();
 };
 exports.isFile = function isFile(filename) {
   return MozFile(filename).isFile();
 };
 exports.read = function read(filename, mode) {
   if (typeof(mode) !== "string")
     mode = "";
   // Ensure mode is read-only.
   mode = /b/.test(mode) ? "b" : "";
   var stream = exports.open(filename, mode);
   try {
     var str = stream.read();
   }
   finally {
     stream.close();
   }
   return str;
 };
 exports.join = function join(base) {
   if (arguments.length < 2)
     throw new Error("need at least 2 args");
   base = MozFile(base);
   for (var i = 1; i < arguments.length; i++)
     base.append(arguments[i]);
   return base.path;
 };
 exports.dirname = function dirname(path) {
   var parent = MozFile(path).parent;
   return parent ? parent.path : "";
 };
 exports.basename = function basename(path) {
   var leafName = MozFile(path).leafName;
   // On Windows, leafName when the path is a volume letter and colon ("c:") is
   // the path itself.  But such a path has no basename, so we want the empty
   // string.
   return leafName == path ? "" : leafName;
 };
 exports.list = function list(path) {
   var file = MozFile(path);
   ensureDir(file);
   ensureReadable(file);
   var entries = file.directoryEntries;
   var entryNames = [];
   while(entries.hasMoreElements()) {
     var entry = entries.getNext();
     entry.QueryInterface(Ci.nsIFile);
     entryNames.push(entry.leafName);
   }
   return entryNames;
 };
 exports.open = function open(filename, mode) {
   var file = MozFile(filename);
   if (typeof(mode) !== "string")
     mode = "";
   // File opened for write only.
   if (/w/.test(mode)) {
     if (file.exists())
       ensureFile(file);
     var stream = Cc['@mozilla.org/network/file-output-stream;1'].
                  createInstance(Ci.nsIFileOutputStream);
     var openFlags = OPEN_FLAGS.WRONLY |
                     OPEN_FLAGS.CREATE_FILE |
                     OPEN_FLAGS.TRUNCATE;
     var permFlags = parseInt("0644", 8); // u+rw go+r
     try {
       stream.init(file, openFlags, permFlags, 0);
     }
     catch (err) {
       throw friendlyError(err, filename);
     }
     return /b/.test(mode) ?
            new byteStreams.ByteWriter(stream) :
            new textStreams.TextWriter(stream);
   }
   // File opened for read only, the default.
   ensureFile(file);
   stream = Cc['@mozilla.org/network/file-input-stream;1'].
            createInstance(Ci.nsIFileInputStream);
   try {
     stream.init(file, OPEN_FLAGS.RDONLY, 0, 0);
   }
   catch (err) {
     throw friendlyError(err, filename);
   }
   return /b/.test(mode) ?
          new byteStreams.ByteReader(stream) :
          new textStreams.TextReader(stream);
 };
 exports.remove = function remove(path) {
   var file = MozFile(path);
   ensureFile(file);
   file.remove(false);
 };
 exports.mkpath = function mkpath(path) {
   var file = MozFile(path);
   if (!file.exists())
     file.create(Ci.nsIFile.DIRECTORY_TYPE, parseInt("0755", 8)); // u+rwx go+rx
   else if (!file.isDirectory())
     throw new Error("The path already exists and is not a directory: " + path);
 };
 exports.rmdir = function rmdir(path) {
   var file = MozFile(path);
   ensureDir(file);
   try {
     file.remove(false);
   }
   catch (err) {
     // Bug 566950 explains why we're not catching a specific exception here.
     throw new Error("The directory is not empty: " + path);
   }
 };