6093 lines
161 KiB
JavaScript
6093 lines
161 KiB
JavaScript
!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.Filer=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
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(function (process){
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/*global setImmediate: false, setTimeout: false, console: false */
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/**
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* async.js shim, based on https://raw.github.com/caolan/async/master/lib/async.js Feb 18, 2014
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* Used under MIT - https://github.com/caolan/async/blob/master/LICENSE
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*/
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(function () {
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var async = {};
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// async.js functions used in Filer
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//// nextTick implementation with browser-compatible fallback ////
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if (typeof process === 'undefined' || !(process.nextTick)) {
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if (typeof setImmediate === 'function') {
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async.nextTick = function (fn) {
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// not a direct alias for IE10 compatibility
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setImmediate(fn);
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};
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async.setImmediate = async.nextTick;
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}
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else {
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async.nextTick = function (fn) {
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setTimeout(fn, 0);
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};
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async.setImmediate = async.nextTick;
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}
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}
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else {
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async.nextTick = process.nextTick;
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if (typeof setImmediate !== 'undefined') {
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async.setImmediate = function (fn) {
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// not a direct alias for IE10 compatibility
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setImmediate(fn);
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};
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}
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else {
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async.setImmediate = async.nextTick;
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}
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}
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async.eachSeries = function (arr, iterator, callback) {
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callback = callback || function () {};
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if (!arr.length) {
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return callback();
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}
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var completed = 0;
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var iterate = function () {
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iterator(arr[completed], function (err) {
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if (err) {
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callback(err);
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callback = function () {};
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}
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else {
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completed += 1;
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if (completed >= arr.length) {
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callback();
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}
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else {
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iterate();
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}
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}
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});
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};
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iterate();
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};
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async.forEachSeries = async.eachSeries;
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// AMD / RequireJS
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if (typeof define !== 'undefined' && define.amd) {
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define([], function () {
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return async;
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});
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}
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// Node.js
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else if (typeof module !== 'undefined' && module.exports) {
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module.exports = async;
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}
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// included directly via <script> tag
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else {
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root.async = async;
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}
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}());
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}).call(this,_dereq_("JkpR2F"))
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},{"JkpR2F":9}],2:[function(_dereq_,module,exports){
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// Based on https://github.com/diy/intercom.js/blob/master/lib/events.js
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// Copyright 2012 DIY Co Apache License, Version 2.0
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// http://www.apache.org/licenses/LICENSE-2.0
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function removeItem(item, array) {
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for (var i = array.length - 1; i >= 0; i--) {
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if (array[i] === item) {
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array.splice(i, 1);
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}
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}
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return array;
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}
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var EventEmitter = function() {};
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EventEmitter.createInterface = function(space) {
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var methods = {};
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methods.on = function(name, fn) {
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if (typeof this[space] === 'undefined') {
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this[space] = {};
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}
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if (!this[space].hasOwnProperty(name)) {
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this[space][name] = [];
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}
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this[space][name].push(fn);
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};
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methods.off = function(name, fn) {
|
|
if (typeof this[space] === 'undefined') return;
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|
if (this[space].hasOwnProperty(name)) {
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removeItem(fn, this[space][name]);
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}
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};
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methods.trigger = function(name) {
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|
if (typeof this[space] !== 'undefined' && this[space].hasOwnProperty(name)) {
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var args = Array.prototype.slice.call(arguments, 1);
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for (var i = 0; i < this[space][name].length; i++) {
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this[space][name][i].apply(this[space][name][i], args);
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}
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}
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};
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methods.removeAllListeners = function(name) {
|
|
if (typeof this[space] === 'undefined') return;
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|
var self = this;
|
|
self[space][name].forEach(function(fn) {
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self.off(name, fn);
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});
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};
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return methods;
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};
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var pvt = EventEmitter.createInterface('_handlers');
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EventEmitter.prototype._on = pvt.on;
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EventEmitter.prototype._off = pvt.off;
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EventEmitter.prototype._trigger = pvt.trigger;
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var pub = EventEmitter.createInterface('handlers');
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EventEmitter.prototype.on = function() {
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pub.on.apply(this, arguments);
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Array.prototype.unshift.call(arguments, 'on');
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this._trigger.apply(this, arguments);
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};
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EventEmitter.prototype.off = pub.off;
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EventEmitter.prototype.trigger = pub.trigger;
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EventEmitter.prototype.removeAllListeners = pub.removeAllListeners;
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module.exports = EventEmitter;
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},{}],3:[function(_dereq_,module,exports){
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(function (global){
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// Based on https://github.com/diy/intercom.js/blob/master/lib/intercom.js
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// Copyright 2012 DIY Co Apache License, Version 2.0
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// http://www.apache.org/licenses/LICENSE-2.0
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var EventEmitter = _dereq_('./eventemitter.js');
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var guid = _dereq_('../src/shared.js').guid;
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function throttle(delay, fn) {
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var last = 0;
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|
return function() {
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var now = Date.now();
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if (now - last > delay) {
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last = now;
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fn.apply(this, arguments);
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}
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};
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}
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function extend(a, b) {
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|
if (typeof a === 'undefined' || !a) { a = {}; }
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|
if (typeof b === 'object') {
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for (var key in b) {
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if (b.hasOwnProperty(key)) {
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a[key] = b[key];
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}
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}
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}
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return a;
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}
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var localStorage = (function(window) {
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if (typeof window === 'undefined' ||
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typeof window.localStorage === 'undefined') {
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return {
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getItem : function() {},
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setItem : function() {},
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removeItem : function() {}
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};
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}
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return window.localStorage;
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}(global));
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function Intercom() {
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var self = this;
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var now = Date.now();
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this.origin = guid();
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this.lastMessage = now;
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this.receivedIDs = {};
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this.previousValues = {};
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var storageHandler = function() {
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self._onStorageEvent.apply(self, arguments);
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};
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// If we're in node.js, skip event registration
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if (typeof document === 'undefined') {
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return;
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}
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if (document.attachEvent) {
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document.attachEvent('onstorage', storageHandler);
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} else {
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global.addEventListener('storage', storageHandler, false);
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}
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}
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Intercom.prototype._transaction = function(fn) {
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var TIMEOUT = 1000;
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var WAIT = 20;
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var self = this;
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var executed = false;
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var listening = false;
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var waitTimer = null;
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function lock() {
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if (executed) {
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return;
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}
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var now = Date.now();
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var activeLock = localStorage.getItem(INDEX_LOCK)|0;
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if (activeLock && now - activeLock < TIMEOUT) {
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if (!listening) {
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self._on('storage', lock);
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listening = true;
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}
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waitTimer = setTimeout(lock, WAIT);
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return;
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}
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executed = true;
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localStorage.setItem(INDEX_LOCK, now);
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fn();
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unlock();
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}
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function unlock() {
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if (listening) {
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self._off('storage', lock);
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}
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if (waitTimer) {
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clearTimeout(waitTimer);
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}
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localStorage.removeItem(INDEX_LOCK);
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}
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lock();
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};
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Intercom.prototype._cleanup_emit = throttle(100, function() {
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var self = this;
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self._transaction(function() {
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var now = Date.now();
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var threshold = now - THRESHOLD_TTL_EMIT;
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var changed = 0;
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var messages;
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try {
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messages = JSON.parse(localStorage.getItem(INDEX_EMIT) || '[]');
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} catch(e) {
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messages = [];
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}
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for (var i = messages.length - 1; i >= 0; i--) {
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if (messages[i].timestamp < threshold) {
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messages.splice(i, 1);
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changed++;
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}
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}
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if (changed > 0) {
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localStorage.setItem(INDEX_EMIT, JSON.stringify(messages));
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}
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});
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});
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Intercom.prototype._cleanup_once = throttle(100, function() {
|
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var self = this;
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self._transaction(function() {
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var timestamp, ttl, key;
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var table;
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var now = Date.now();
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var changed = 0;
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try {
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table = JSON.parse(localStorage.getItem(INDEX_ONCE) || '{}');
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} catch(e) {
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table = {};
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}
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for (key in table) {
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if (self._once_expired(key, table)) {
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delete table[key];
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changed++;
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}
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}
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if (changed > 0) {
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localStorage.setItem(INDEX_ONCE, JSON.stringify(table));
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}
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});
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});
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Intercom.prototype._once_expired = function(key, table) {
|
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if (!table) {
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|
return true;
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|
}
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|
if (!table.hasOwnProperty(key)) {
|
|
return true;
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|
}
|
|
if (typeof table[key] !== 'object') {
|
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return true;
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|
}
|
|
|
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var ttl = table[key].ttl || THRESHOLD_TTL_ONCE;
|
|
var now = Date.now();
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var timestamp = table[key].timestamp;
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return timestamp < now - ttl;
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};
|
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Intercom.prototype._localStorageChanged = function(event, field) {
|
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if (event && event.key) {
|
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return event.key === field;
|
|
}
|
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|
|
var currentValue = localStorage.getItem(field);
|
|
if (currentValue === this.previousValues[field]) {
|
|
return false;
|
|
}
|
|
this.previousValues[field] = currentValue;
|
|
return true;
|
|
};
|
|
|
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Intercom.prototype._onStorageEvent = function(event) {
|
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event = event || global.event;
|
|
var self = this;
|
|
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if (this._localStorageChanged(event, INDEX_EMIT)) {
|
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this._transaction(function() {
|
|
var now = Date.now();
|
|
var data = localStorage.getItem(INDEX_EMIT);
|
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var messages;
|
|
|
|
try {
|
|
messages = JSON.parse(data || '[]');
|
|
} catch(e) {
|
|
messages = [];
|
|
}
|
|
for (var i = 0; i < messages.length; i++) {
|
|
if (messages[i].origin === self.origin) continue;
|
|
if (messages[i].timestamp < self.lastMessage) continue;
|
|
if (messages[i].id) {
|
|
if (self.receivedIDs.hasOwnProperty(messages[i].id)) continue;
|
|
self.receivedIDs[messages[i].id] = true;
|
|
}
|
|
self.trigger(messages[i].name, messages[i].payload);
|
|
}
|
|
self.lastMessage = now;
|
|
});
|
|
}
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|
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this._trigger('storage', event);
|
|
};
|
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|
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Intercom.prototype._emit = function(name, message, id) {
|
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id = (typeof id === 'string' || typeof id === 'number') ? String(id) : null;
|
|
if (id && id.length) {
|
|
if (this.receivedIDs.hasOwnProperty(id)) return;
|
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this.receivedIDs[id] = true;
|
|
}
|
|
|
|
var packet = {
|
|
id : id,
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|
name : name,
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|
origin : this.origin,
|
|
timestamp : Date.now(),
|
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payload : message
|
|
};
|
|
|
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var self = this;
|
|
this._transaction(function() {
|
|
var data = localStorage.getItem(INDEX_EMIT) || '[]';
|
|
var delimiter = (data === '[]') ? '' : ',';
|
|
data = [data.substring(0, data.length - 1), delimiter, JSON.stringify(packet), ']'].join('');
|
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localStorage.setItem(INDEX_EMIT, data);
|
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self.trigger(name, message);
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|
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setTimeout(function() {
|
|
self._cleanup_emit();
|
|
}, 50);
|
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});
|
|
};
|
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|
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Intercom.prototype.emit = function(name, message) {
|
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this._emit.apply(this, arguments);
|
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this._trigger('emit', name, message);
|
|
};
|
|
|
|
Intercom.prototype.once = function(key, fn, ttl) {
|
|
if (!Intercom.supported) {
|
|
return;
|
|
}
|
|
|
|
var self = this;
|
|
this._transaction(function() {
|
|
var data;
|
|
try {
|
|
data = JSON.parse(localStorage.getItem(INDEX_ONCE) || '{}');
|
|
} catch(e) {
|
|
data = {};
|
|
}
|
|
if (!self._once_expired(key, data)) {
|
|
return;
|
|
}
|
|
|
|
data[key] = {};
|
|
data[key].timestamp = Date.now();
|
|
if (typeof ttl === 'number') {
|
|
data[key].ttl = ttl * 1000;
|
|
}
|
|
|
|
localStorage.setItem(INDEX_ONCE, JSON.stringify(data));
|
|
fn();
|
|
|
|
setTimeout(function() {
|
|
self._cleanup_once();
|
|
}, 50);
|
|
});
|
|
};
|
|
|
|
extend(Intercom.prototype, EventEmitter.prototype);
|
|
|
|
Intercom.supported = (typeof localStorage !== 'undefined');
|
|
|
|
var INDEX_EMIT = 'intercom';
|
|
var INDEX_ONCE = 'intercom_once';
|
|
var INDEX_LOCK = 'intercom_lock';
|
|
|
|
var THRESHOLD_TTL_EMIT = 50000;
|
|
var THRESHOLD_TTL_ONCE = 1000 * 3600;
|
|
|
|
Intercom.destroy = function() {
|
|
localStorage.removeItem(INDEX_LOCK);
|
|
localStorage.removeItem(INDEX_EMIT);
|
|
localStorage.removeItem(INDEX_ONCE);
|
|
};
|
|
|
|
Intercom.getInstance = (function() {
|
|
var intercom;
|
|
return function() {
|
|
if (!intercom) {
|
|
intercom = new Intercom();
|
|
}
|
|
return intercom;
|
|
};
|
|
})();
|
|
|
|
module.exports = Intercom;
|
|
|
|
}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"../src/shared.js":26,"./eventemitter.js":2}],4:[function(_dereq_,module,exports){
|
|
// Cherry-picked bits of underscore.js, lodash.js
|
|
|
|
/**
|
|
* Lo-Dash 2.4.0 <http://lodash.com/>
|
|
* Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
|
|
* Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE>
|
|
* Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
|
|
* Available under MIT license <http://lodash.com/license>
|
|
*/
|
|
var ArrayProto = Array.prototype;
|
|
var nativeForEach = ArrayProto.forEach;
|
|
var nativeIndexOf = ArrayProto.indexOf;
|
|
var nativeSome = ArrayProto.some;
|
|
|
|
var ObjProto = Object.prototype;
|
|
var hasOwnProperty = ObjProto.hasOwnProperty;
|
|
var nativeKeys = Object.keys;
|
|
|
|
var breaker = {};
|
|
|
|
function has(obj, key) {
|
|
return hasOwnProperty.call(obj, key);
|
|
}
|
|
|
|
var keys = nativeKeys || function(obj) {
|
|
if (obj !== Object(obj)) throw new TypeError('Invalid object');
|
|
var keys = [];
|
|
for (var key in obj) if (has(obj, key)) keys.push(key);
|
|
return keys;
|
|
};
|
|
|
|
function size(obj) {
|
|
if (obj == null) return 0;
|
|
return (obj.length === +obj.length) ? obj.length : keys(obj).length;
|
|
}
|
|
|
|
function identity(value) {
|
|
return value;
|
|
}
|
|
|
|
function each(obj, iterator, context) {
|
|
var i, length;
|
|
if (obj == null) return;
|
|
if (nativeForEach && obj.forEach === nativeForEach) {
|
|
obj.forEach(iterator, context);
|
|
} else if (obj.length === +obj.length) {
|
|
for (i = 0, length = obj.length; i < length; i++) {
|
|
if (iterator.call(context, obj[i], i, obj) === breaker) return;
|
|
}
|
|
} else {
|
|
var keys = keys(obj);
|
|
for (i = 0, length = keys.length; i < length; i++) {
|
|
if (iterator.call(context, obj[keys[i]], keys[i], obj) === breaker) return;
|
|
}
|
|
}
|
|
};
|
|
|
|
function any(obj, iterator, context) {
|
|
iterator || (iterator = identity);
|
|
var result = false;
|
|
if (obj == null) return result;
|
|
if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
|
|
each(obj, function(value, index, list) {
|
|
if (result || (result = iterator.call(context, value, index, list))) return breaker;
|
|
});
|
|
return !!result;
|
|
};
|
|
|
|
function contains(obj, target) {
|
|
if (obj == null) return false;
|
|
if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
|
|
return any(obj, function(value) {
|
|
return value === target;
|
|
});
|
|
};
|
|
|
|
function Wrapped(value) {
|
|
this.value = value;
|
|
}
|
|
Wrapped.prototype.has = function(key) {
|
|
return has(this.value, key);
|
|
};
|
|
Wrapped.prototype.contains = function(target) {
|
|
return contains(this.value, target);
|
|
};
|
|
Wrapped.prototype.size = function() {
|
|
return size(this.value);
|
|
};
|
|
|
|
function nodash(value) {
|
|
// don't wrap if already wrapped, even if wrapped by a different `lodash` constructor
|
|
return (value && typeof value == 'object' && !Array.isArray(value) && hasOwnProperty.call(value, '__wrapped__'))
|
|
? value
|
|
: new Wrapped(value);
|
|
}
|
|
|
|
module.exports = nodash;
|
|
|
|
},{}],5:[function(_dereq_,module,exports){
|
|
/*
|
|
* base64-arraybuffer
|
|
* https://github.com/niklasvh/base64-arraybuffer
|
|
*
|
|
* Copyright (c) 2012 Niklas von Hertzen
|
|
* Licensed under the MIT license.
|
|
*/
|
|
(function(chars){
|
|
"use strict";
|
|
|
|
exports.encode = function(arraybuffer) {
|
|
var bytes = new Uint8Array(arraybuffer),
|
|
i, len = bytes.length, base64 = "";
|
|
|
|
for (i = 0; i < len; i+=3) {
|
|
base64 += chars[bytes[i] >> 2];
|
|
base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
|
|
base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
|
|
base64 += chars[bytes[i + 2] & 63];
|
|
}
|
|
|
|
if ((len % 3) === 2) {
|
|
base64 = base64.substring(0, base64.length - 1) + "=";
|
|
} else if (len % 3 === 1) {
|
|
base64 = base64.substring(0, base64.length - 2) + "==";
|
|
}
|
|
|
|
return base64;
|
|
};
|
|
|
|
exports.decode = function(base64) {
|
|
var bufferLength = base64.length * 0.75,
|
|
len = base64.length, i, p = 0,
|
|
encoded1, encoded2, encoded3, encoded4;
|
|
|
|
if (base64[base64.length - 1] === "=") {
|
|
bufferLength--;
|
|
if (base64[base64.length - 2] === "=") {
|
|
bufferLength--;
|
|
}
|
|
}
|
|
|
|
var arraybuffer = new ArrayBuffer(bufferLength),
|
|
bytes = new Uint8Array(arraybuffer);
|
|
|
|
for (i = 0; i < len; i+=4) {
|
|
encoded1 = chars.indexOf(base64[i]);
|
|
encoded2 = chars.indexOf(base64[i+1]);
|
|
encoded3 = chars.indexOf(base64[i+2]);
|
|
encoded4 = chars.indexOf(base64[i+3]);
|
|
|
|
bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
|
|
bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
|
|
bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
|
|
}
|
|
|
|
return arraybuffer;
|
|
};
|
|
})("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");
|
|
|
|
},{}],6:[function(_dereq_,module,exports){
|
|
/*!
|
|
* The buffer module from node.js, for the browser.
|
|
*
|
|
* @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
|
|
* @license MIT
|
|
*/
|
|
|
|
var base64 = _dereq_('base64-js')
|
|
var ieee754 = _dereq_('ieee754')
|
|
|
|
exports.Buffer = Buffer
|
|
exports.SlowBuffer = Buffer
|
|
exports.INSPECT_MAX_BYTES = 50
|
|
Buffer.poolSize = 8192
|
|
|
|
/**
|
|
* If `Buffer._useTypedArrays`:
|
|
* === true Use Uint8Array implementation (fastest)
|
|
* === false Use Object implementation (compatible down to IE6)
|
|
*/
|
|
Buffer._useTypedArrays = (function () {
|
|
// Detect if browser supports Typed Arrays. Supported browsers are IE 10+, Firefox 4+,
|
|
// Chrome 7+, Safari 5.1+, Opera 11.6+, iOS 4.2+. If the browser does not support adding
|
|
// properties to `Uint8Array` instances, then that's the same as no `Uint8Array` support
|
|
// because we need to be able to add all the node Buffer API methods. This is an issue
|
|
// in Firefox 4-29. Now fixed: https://bugzilla.mozilla.org/show_bug.cgi?id=695438
|
|
try {
|
|
var buf = new ArrayBuffer(0)
|
|
var arr = new Uint8Array(buf)
|
|
arr.foo = function () { return 42 }
|
|
return 42 === arr.foo() &&
|
|
typeof arr.subarray === 'function' // Chrome 9-10 lack `subarray`
|
|
} catch (e) {
|
|
return false
|
|
}
|
|
})()
|
|
|
|
/**
|
|
* Class: Buffer
|
|
* =============
|
|
*
|
|
* The Buffer constructor returns instances of `Uint8Array` that are augmented
|
|
* with function properties for all the node `Buffer` API functions. We use
|
|
* `Uint8Array` so that square bracket notation works as expected -- it returns
|
|
* a single octet.
|
|
*
|
|
* By augmenting the instances, we can avoid modifying the `Uint8Array`
|
|
* prototype.
|
|
*/
|
|
function Buffer (subject, encoding, noZero) {
|
|
if (!(this instanceof Buffer))
|
|
return new Buffer(subject, encoding, noZero)
|
|
|
|
var type = typeof subject
|
|
|
|
if (encoding === 'base64' && type === 'string') {
|
|
subject = base64clean(subject)
|
|
}
|
|
|
|
// Find the length
|
|
var length
|
|
if (type === 'number')
|
|
length = coerce(subject)
|
|
else if (type === 'string')
|
|
length = Buffer.byteLength(subject, encoding)
|
|
else if (type === 'object')
|
|
length = coerce(subject.length) // assume that object is array-like
|
|
else
|
|
throw new Error('First argument needs to be a number, array or string.')
|
|
|
|
var buf
|
|
if (Buffer._useTypedArrays) {
|
|
// Preferred: Return an augmented `Uint8Array` instance for best performance
|
|
buf = Buffer._augment(new Uint8Array(length))
|
|
} else {
|
|
// Fallback: Return THIS instance of Buffer (created by `new`)
|
|
buf = this
|
|
buf.length = length
|
|
buf._isBuffer = true
|
|
}
|
|
|
|
var i
|
|
if (Buffer._useTypedArrays && typeof subject.byteLength === 'number') {
|
|
// Speed optimization -- use set if we're copying from a typed array
|
|
buf._set(subject)
|
|
} else if (isArrayish(subject)) {
|
|
// Treat array-ish objects as a byte array
|
|
if (Buffer.isBuffer(subject)) {
|
|
for (i = 0; i < length; i++)
|
|
buf[i] = subject.readUInt8(i)
|
|
} else {
|
|
for (i = 0; i < length; i++)
|
|
buf[i] = ((subject[i] % 256) + 256) % 256
|
|
}
|
|
} else if (type === 'string') {
|
|
buf.write(subject, 0, encoding)
|
|
} else if (type === 'number' && !Buffer._useTypedArrays && !noZero) {
|
|
for (i = 0; i < length; i++) {
|
|
buf[i] = 0
|
|
}
|
|
}
|
|
|
|
return buf
|
|
}
|
|
|
|
// STATIC METHODS
|
|
// ==============
|
|
|
|
Buffer.isEncoding = function (encoding) {
|
|
switch (String(encoding).toLowerCase()) {
|
|
case 'hex':
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
case 'ascii':
|
|
case 'binary':
|
|
case 'base64':
|
|
case 'raw':
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
Buffer.isBuffer = function (b) {
|
|
return !!(b !== null && b !== undefined && b._isBuffer)
|
|
}
|
|
|
|
Buffer.byteLength = function (str, encoding) {
|
|
var ret
|
|
str = str.toString()
|
|
switch (encoding || 'utf8') {
|
|
case 'hex':
|
|
ret = str.length / 2
|
|
break
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
ret = utf8ToBytes(str).length
|
|
break
|
|
case 'ascii':
|
|
case 'binary':
|
|
case 'raw':
|
|
ret = str.length
|
|
break
|
|
case 'base64':
|
|
ret = base64ToBytes(str).length
|
|
break
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
ret = str.length * 2
|
|
break
|
|
default:
|
|
throw new Error('Unknown encoding')
|
|
}
|
|
return ret
|
|
}
|
|
|
|
Buffer.concat = function (list, totalLength) {
|
|
assert(isArray(list), 'Usage: Buffer.concat(list[, length])')
|
|
|
|
if (list.length === 0) {
|
|
return new Buffer(0)
|
|
} else if (list.length === 1) {
|
|
return list[0]
|
|
}
|
|
|
|
var i
|
|
if (totalLength === undefined) {
|
|
totalLength = 0
|
|
for (i = 0; i < list.length; i++) {
|
|
totalLength += list[i].length
|
|
}
|
|
}
|
|
|
|
var buf = new Buffer(totalLength)
|
|
var pos = 0
|
|
for (i = 0; i < list.length; i++) {
|
|
var item = list[i]
|
|
item.copy(buf, pos)
|
|
pos += item.length
|
|
}
|
|
return buf
|
|
}
|
|
|
|
Buffer.compare = function (a, b) {
|
|
assert(Buffer.isBuffer(a) && Buffer.isBuffer(b), 'Arguments must be Buffers')
|
|
var x = a.length
|
|
var y = b.length
|
|
for (var i = 0, len = Math.min(x, y); i < len && a[i] === b[i]; i++) {}
|
|
if (i !== len) {
|
|
x = a[i]
|
|
y = b[i]
|
|
}
|
|
if (x < y) {
|
|
return -1
|
|
}
|
|
if (y < x) {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// BUFFER INSTANCE METHODS
|
|
// =======================
|
|
|
|
function hexWrite (buf, string, offset, length) {
|
|
offset = Number(offset) || 0
|
|
var remaining = buf.length - offset
|
|
if (!length) {
|
|
length = remaining
|
|
} else {
|
|
length = Number(length)
|
|
if (length > remaining) {
|
|
length = remaining
|
|
}
|
|
}
|
|
|
|
// must be an even number of digits
|
|
var strLen = string.length
|
|
assert(strLen % 2 === 0, 'Invalid hex string')
|
|
|
|
if (length > strLen / 2) {
|
|
length = strLen / 2
|
|
}
|
|
for (var i = 0; i < length; i++) {
|
|
var byte = parseInt(string.substr(i * 2, 2), 16)
|
|
assert(!isNaN(byte), 'Invalid hex string')
|
|
buf[offset + i] = byte
|
|
}
|
|
return i
|
|
}
|
|
|
|
function utf8Write (buf, string, offset, length) {
|
|
var charsWritten = blitBuffer(utf8ToBytes(string), buf, offset, length)
|
|
return charsWritten
|
|
}
|
|
|
|
function asciiWrite (buf, string, offset, length) {
|
|
var charsWritten = blitBuffer(asciiToBytes(string), buf, offset, length)
|
|
return charsWritten
|
|
}
|
|
|
|
function binaryWrite (buf, string, offset, length) {
|
|
return asciiWrite(buf, string, offset, length)
|
|
}
|
|
|
|
function base64Write (buf, string, offset, length) {
|
|
var charsWritten = blitBuffer(base64ToBytes(string), buf, offset, length)
|
|
return charsWritten
|
|
}
|
|
|
|
function utf16leWrite (buf, string, offset, length) {
|
|
var charsWritten = blitBuffer(utf16leToBytes(string), buf, offset, length)
|
|
return charsWritten
|
|
}
|
|
|
|
Buffer.prototype.write = function (string, offset, length, encoding) {
|
|
// Support both (string, offset, length, encoding)
|
|
// and the legacy (string, encoding, offset, length)
|
|
if (isFinite(offset)) {
|
|
if (!isFinite(length)) {
|
|
encoding = length
|
|
length = undefined
|
|
}
|
|
} else { // legacy
|
|
var swap = encoding
|
|
encoding = offset
|
|
offset = length
|
|
length = swap
|
|
}
|
|
|
|
offset = Number(offset) || 0
|
|
var remaining = this.length - offset
|
|
if (!length) {
|
|
length = remaining
|
|
} else {
|
|
length = Number(length)
|
|
if (length > remaining) {
|
|
length = remaining
|
|
}
|
|
}
|
|
encoding = String(encoding || 'utf8').toLowerCase()
|
|
|
|
var ret
|
|
switch (encoding) {
|
|
case 'hex':
|
|
ret = hexWrite(this, string, offset, length)
|
|
break
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
ret = utf8Write(this, string, offset, length)
|
|
break
|
|
case 'ascii':
|
|
ret = asciiWrite(this, string, offset, length)
|
|
break
|
|
case 'binary':
|
|
ret = binaryWrite(this, string, offset, length)
|
|
break
|
|
case 'base64':
|
|
ret = base64Write(this, string, offset, length)
|
|
break
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
ret = utf16leWrite(this, string, offset, length)
|
|
break
|
|
default:
|
|
throw new Error('Unknown encoding')
|
|
}
|
|
return ret
|
|
}
|
|
|
|
Buffer.prototype.toString = function (encoding, start, end) {
|
|
var self = this
|
|
|
|
encoding = String(encoding || 'utf8').toLowerCase()
|
|
start = Number(start) || 0
|
|
end = (end === undefined) ? self.length : Number(end)
|
|
|
|
// Fastpath empty strings
|
|
if (end === start)
|
|
return ''
|
|
|
|
var ret
|
|
switch (encoding) {
|
|
case 'hex':
|
|
ret = hexSlice(self, start, end)
|
|
break
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
ret = utf8Slice(self, start, end)
|
|
break
|
|
case 'ascii':
|
|
ret = asciiSlice(self, start, end)
|
|
break
|
|
case 'binary':
|
|
ret = binarySlice(self, start, end)
|
|
break
|
|
case 'base64':
|
|
ret = base64Slice(self, start, end)
|
|
break
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
ret = utf16leSlice(self, start, end)
|
|
break
|
|
default:
|
|
throw new Error('Unknown encoding')
|
|
}
|
|
return ret
|
|
}
|
|
|
|
Buffer.prototype.toJSON = function () {
|
|
return {
|
|
type: 'Buffer',
|
|
data: Array.prototype.slice.call(this._arr || this, 0)
|
|
}
|
|
}
|
|
|
|
Buffer.prototype.equals = function (b) {
|
|
assert(Buffer.isBuffer(b), 'Argument must be a Buffer')
|
|
return Buffer.compare(this, b) === 0
|
|
}
|
|
|
|
Buffer.prototype.compare = function (b) {
|
|
assert(Buffer.isBuffer(b), 'Argument must be a Buffer')
|
|
return Buffer.compare(this, b)
|
|
}
|
|
|
|
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
|
|
Buffer.prototype.copy = function (target, target_start, start, end) {
|
|
var source = this
|
|
|
|
if (!start) start = 0
|
|
if (!end && end !== 0) end = this.length
|
|
if (!target_start) target_start = 0
|
|
|
|
// Copy 0 bytes; we're done
|
|
if (end === start) return
|
|
if (target.length === 0 || source.length === 0) return
|
|
|
|
// Fatal error conditions
|
|
assert(end >= start, 'sourceEnd < sourceStart')
|
|
assert(target_start >= 0 && target_start < target.length,
|
|
'targetStart out of bounds')
|
|
assert(start >= 0 && start < source.length, 'sourceStart out of bounds')
|
|
assert(end >= 0 && end <= source.length, 'sourceEnd out of bounds')
|
|
|
|
// Are we oob?
|
|
if (end > this.length)
|
|
end = this.length
|
|
if (target.length - target_start < end - start)
|
|
end = target.length - target_start + start
|
|
|
|
var len = end - start
|
|
|
|
if (len < 100 || !Buffer._useTypedArrays) {
|
|
for (var i = 0; i < len; i++) {
|
|
target[i + target_start] = this[i + start]
|
|
}
|
|
} else {
|
|
target._set(this.subarray(start, start + len), target_start)
|
|
}
|
|
}
|
|
|
|
function base64Slice (buf, start, end) {
|
|
if (start === 0 && end === buf.length) {
|
|
return base64.fromByteArray(buf)
|
|
} else {
|
|
return base64.fromByteArray(buf.slice(start, end))
|
|
}
|
|
}
|
|
|
|
function utf8Slice (buf, start, end) {
|
|
var res = ''
|
|
var tmp = ''
|
|
end = Math.min(buf.length, end)
|
|
|
|
for (var i = start; i < end; i++) {
|
|
if (buf[i] <= 0x7F) {
|
|
res += decodeUtf8Char(tmp) + String.fromCharCode(buf[i])
|
|
tmp = ''
|
|
} else {
|
|
tmp += '%' + buf[i].toString(16)
|
|
}
|
|
}
|
|
|
|
return res + decodeUtf8Char(tmp)
|
|
}
|
|
|
|
function asciiSlice (buf, start, end) {
|
|
var ret = ''
|
|
end = Math.min(buf.length, end)
|
|
|
|
for (var i = start; i < end; i++) {
|
|
ret += String.fromCharCode(buf[i])
|
|
}
|
|
return ret
|
|
}
|
|
|
|
function binarySlice (buf, start, end) {
|
|
return asciiSlice(buf, start, end)
|
|
}
|
|
|
|
function hexSlice (buf, start, end) {
|
|
var len = buf.length
|
|
|
|
if (!start || start < 0) start = 0
|
|
if (!end || end < 0 || end > len) end = len
|
|
|
|
var out = ''
|
|
for (var i = start; i < end; i++) {
|
|
out += toHex(buf[i])
|
|
}
|
|
return out
|
|
}
|
|
|
|
function utf16leSlice (buf, start, end) {
|
|
var bytes = buf.slice(start, end)
|
|
var res = ''
|
|
for (var i = 0; i < bytes.length; i += 2) {
|
|
res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
|
|
}
|
|
return res
|
|
}
|
|
|
|
Buffer.prototype.slice = function (start, end) {
|
|
var len = this.length
|
|
start = clamp(start, len, 0)
|
|
end = clamp(end, len, len)
|
|
|
|
if (Buffer._useTypedArrays) {
|
|
return Buffer._augment(this.subarray(start, end))
|
|
} else {
|
|
var sliceLen = end - start
|
|
var newBuf = new Buffer(sliceLen, undefined, true)
|
|
for (var i = 0; i < sliceLen; i++) {
|
|
newBuf[i] = this[i + start]
|
|
}
|
|
return newBuf
|
|
}
|
|
}
|
|
|
|
// `get` will be removed in Node 0.13+
|
|
Buffer.prototype.get = function (offset) {
|
|
console.log('.get() is deprecated. Access using array indexes instead.')
|
|
return this.readUInt8(offset)
|
|
}
|
|
|
|
// `set` will be removed in Node 0.13+
|
|
Buffer.prototype.set = function (v, offset) {
|
|
console.log('.set() is deprecated. Access using array indexes instead.')
|
|
return this.writeUInt8(v, offset)
|
|
}
|
|
|
|
Buffer.prototype.readUInt8 = function (offset, noAssert) {
|
|
if (!noAssert) {
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset < this.length, 'Trying to read beyond buffer length')
|
|
}
|
|
|
|
if (offset >= this.length)
|
|
return
|
|
|
|
return this[offset]
|
|
}
|
|
|
|
function readUInt16 (buf, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 1 < buf.length, 'Trying to read beyond buffer length')
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
var val
|
|
if (littleEndian) {
|
|
val = buf[offset]
|
|
if (offset + 1 < len)
|
|
val |= buf[offset + 1] << 8
|
|
} else {
|
|
val = buf[offset] << 8
|
|
if (offset + 1 < len)
|
|
val |= buf[offset + 1]
|
|
}
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readUInt16LE = function (offset, noAssert) {
|
|
return readUInt16(this, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.readUInt16BE = function (offset, noAssert) {
|
|
return readUInt16(this, offset, false, noAssert)
|
|
}
|
|
|
|
function readUInt32 (buf, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
var val
|
|
if (littleEndian) {
|
|
if (offset + 2 < len)
|
|
val = buf[offset + 2] << 16
|
|
if (offset + 1 < len)
|
|
val |= buf[offset + 1] << 8
|
|
val |= buf[offset]
|
|
if (offset + 3 < len)
|
|
val = val + (buf[offset + 3] << 24 >>> 0)
|
|
} else {
|
|
if (offset + 1 < len)
|
|
val = buf[offset + 1] << 16
|
|
if (offset + 2 < len)
|
|
val |= buf[offset + 2] << 8
|
|
if (offset + 3 < len)
|
|
val |= buf[offset + 3]
|
|
val = val + (buf[offset] << 24 >>> 0)
|
|
}
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readUInt32LE = function (offset, noAssert) {
|
|
return readUInt32(this, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.readUInt32BE = function (offset, noAssert) {
|
|
return readUInt32(this, offset, false, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.readInt8 = function (offset, noAssert) {
|
|
if (!noAssert) {
|
|
assert(offset !== undefined && offset !== null,
|
|
'missing offset')
|
|
assert(offset < this.length, 'Trying to read beyond buffer length')
|
|
}
|
|
|
|
if (offset >= this.length)
|
|
return
|
|
|
|
var neg = this[offset] & 0x80
|
|
if (neg)
|
|
return (0xff - this[offset] + 1) * -1
|
|
else
|
|
return this[offset]
|
|
}
|
|
|
|
function readInt16 (buf, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 1 < buf.length, 'Trying to read beyond buffer length')
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
var val = readUInt16(buf, offset, littleEndian, true)
|
|
var neg = val & 0x8000
|
|
if (neg)
|
|
return (0xffff - val + 1) * -1
|
|
else
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readInt16LE = function (offset, noAssert) {
|
|
return readInt16(this, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.readInt16BE = function (offset, noAssert) {
|
|
return readInt16(this, offset, false, noAssert)
|
|
}
|
|
|
|
function readInt32 (buf, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
var val = readUInt32(buf, offset, littleEndian, true)
|
|
var neg = val & 0x80000000
|
|
if (neg)
|
|
return (0xffffffff - val + 1) * -1
|
|
else
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readInt32LE = function (offset, noAssert) {
|
|
return readInt32(this, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.readInt32BE = function (offset, noAssert) {
|
|
return readInt32(this, offset, false, noAssert)
|
|
}
|
|
|
|
function readFloat (buf, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
|
|
}
|
|
|
|
return ieee754.read(buf, offset, littleEndian, 23, 4)
|
|
}
|
|
|
|
Buffer.prototype.readFloatLE = function (offset, noAssert) {
|
|
return readFloat(this, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.readFloatBE = function (offset, noAssert) {
|
|
return readFloat(this, offset, false, noAssert)
|
|
}
|
|
|
|
function readDouble (buf, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset + 7 < buf.length, 'Trying to read beyond buffer length')
|
|
}
|
|
|
|
return ieee754.read(buf, offset, littleEndian, 52, 8)
|
|
}
|
|
|
|
Buffer.prototype.readDoubleLE = function (offset, noAssert) {
|
|
return readDouble(this, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.readDoubleBE = function (offset, noAssert) {
|
|
return readDouble(this, offset, false, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeUInt8 = function (value, offset, noAssert) {
|
|
if (!noAssert) {
|
|
assert(value !== undefined && value !== null, 'missing value')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset < this.length, 'trying to write beyond buffer length')
|
|
verifuint(value, 0xff)
|
|
}
|
|
|
|
if (offset >= this.length) return
|
|
|
|
this[offset] = value
|
|
return offset + 1
|
|
}
|
|
|
|
function writeUInt16 (buf, value, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(value !== undefined && value !== null, 'missing value')
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 1 < buf.length, 'trying to write beyond buffer length')
|
|
verifuint(value, 0xffff)
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
for (var i = 0, j = Math.min(len - offset, 2); i < j; i++) {
|
|
buf[offset + i] =
|
|
(value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
|
|
(littleEndian ? i : 1 - i) * 8
|
|
}
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeUInt16LE = function (value, offset, noAssert) {
|
|
return writeUInt16(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeUInt16BE = function (value, offset, noAssert) {
|
|
return writeUInt16(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
function writeUInt32 (buf, value, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(value !== undefined && value !== null, 'missing value')
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 3 < buf.length, 'trying to write beyond buffer length')
|
|
verifuint(value, 0xffffffff)
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
for (var i = 0, j = Math.min(len - offset, 4); i < j; i++) {
|
|
buf[offset + i] =
|
|
(value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
|
|
}
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeUInt32LE = function (value, offset, noAssert) {
|
|
return writeUInt32(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeUInt32BE = function (value, offset, noAssert) {
|
|
return writeUInt32(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeInt8 = function (value, offset, noAssert) {
|
|
if (!noAssert) {
|
|
assert(value !== undefined && value !== null, 'missing value')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset < this.length, 'Trying to write beyond buffer length')
|
|
verifsint(value, 0x7f, -0x80)
|
|
}
|
|
|
|
if (offset >= this.length)
|
|
return
|
|
|
|
if (value >= 0)
|
|
this.writeUInt8(value, offset, noAssert)
|
|
else
|
|
this.writeUInt8(0xff + value + 1, offset, noAssert)
|
|
return offset + 1
|
|
}
|
|
|
|
function writeInt16 (buf, value, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(value !== undefined && value !== null, 'missing value')
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 1 < buf.length, 'Trying to write beyond buffer length')
|
|
verifsint(value, 0x7fff, -0x8000)
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
if (value >= 0)
|
|
writeUInt16(buf, value, offset, littleEndian, noAssert)
|
|
else
|
|
writeUInt16(buf, 0xffff + value + 1, offset, littleEndian, noAssert)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeInt16LE = function (value, offset, noAssert) {
|
|
return writeInt16(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeInt16BE = function (value, offset, noAssert) {
|
|
return writeInt16(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
function writeInt32 (buf, value, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(value !== undefined && value !== null, 'missing value')
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 3 < buf.length, 'Trying to write beyond buffer length')
|
|
verifsint(value, 0x7fffffff, -0x80000000)
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
if (value >= 0)
|
|
writeUInt32(buf, value, offset, littleEndian, noAssert)
|
|
else
|
|
writeUInt32(buf, 0xffffffff + value + 1, offset, littleEndian, noAssert)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeInt32LE = function (value, offset, noAssert) {
|
|
return writeInt32(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeInt32BE = function (value, offset, noAssert) {
|
|
return writeInt32(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
function writeFloat (buf, value, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(value !== undefined && value !== null, 'missing value')
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 3 < buf.length, 'Trying to write beyond buffer length')
|
|
verifIEEE754(value, 3.4028234663852886e+38, -3.4028234663852886e+38)
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
ieee754.write(buf, value, offset, littleEndian, 23, 4)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeFloatLE = function (value, offset, noAssert) {
|
|
return writeFloat(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeFloatBE = function (value, offset, noAssert) {
|
|
return writeFloat(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
function writeDouble (buf, value, offset, littleEndian, noAssert) {
|
|
if (!noAssert) {
|
|
assert(value !== undefined && value !== null, 'missing value')
|
|
assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
|
|
assert(offset !== undefined && offset !== null, 'missing offset')
|
|
assert(offset + 7 < buf.length,
|
|
'Trying to write beyond buffer length')
|
|
verifIEEE754(value, 1.7976931348623157E+308, -1.7976931348623157E+308)
|
|
}
|
|
|
|
var len = buf.length
|
|
if (offset >= len)
|
|
return
|
|
|
|
ieee754.write(buf, value, offset, littleEndian, 52, 8)
|
|
return offset + 8
|
|
}
|
|
|
|
Buffer.prototype.writeDoubleLE = function (value, offset, noAssert) {
|
|
return writeDouble(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeDoubleBE = function (value, offset, noAssert) {
|
|
return writeDouble(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
// fill(value, start=0, end=buffer.length)
|
|
Buffer.prototype.fill = function (value, start, end) {
|
|
if (!value) value = 0
|
|
if (!start) start = 0
|
|
if (!end) end = this.length
|
|
|
|
assert(end >= start, 'end < start')
|
|
|
|
// Fill 0 bytes; we're done
|
|
if (end === start) return
|
|
if (this.length === 0) return
|
|
|
|
assert(start >= 0 && start < this.length, 'start out of bounds')
|
|
assert(end >= 0 && end <= this.length, 'end out of bounds')
|
|
|
|
var i
|
|
if (typeof value === 'number') {
|
|
for (i = start; i < end; i++) {
|
|
this[i] = value
|
|
}
|
|
} else {
|
|
var bytes = utf8ToBytes(value.toString())
|
|
var len = bytes.length
|
|
for (i = start; i < end; i++) {
|
|
this[i] = bytes[i % len]
|
|
}
|
|
}
|
|
|
|
return this
|
|
}
|
|
|
|
Buffer.prototype.inspect = function () {
|
|
var out = []
|
|
var len = this.length
|
|
for (var i = 0; i < len; i++) {
|
|
out[i] = toHex(this[i])
|
|
if (i === exports.INSPECT_MAX_BYTES) {
|
|
out[i + 1] = '...'
|
|
break
|
|
}
|
|
}
|
|
return '<Buffer ' + out.join(' ') + '>'
|
|
}
|
|
|
|
/**
|
|
* Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
|
|
* Added in Node 0.12. Only available in browsers that support ArrayBuffer.
|
|
*/
|
|
Buffer.prototype.toArrayBuffer = function () {
|
|
if (typeof Uint8Array !== 'undefined') {
|
|
if (Buffer._useTypedArrays) {
|
|
return (new Buffer(this)).buffer
|
|
} else {
|
|
var buf = new Uint8Array(this.length)
|
|
for (var i = 0, len = buf.length; i < len; i += 1) {
|
|
buf[i] = this[i]
|
|
}
|
|
return buf.buffer
|
|
}
|
|
} else {
|
|
throw new Error('Buffer.toArrayBuffer not supported in this browser')
|
|
}
|
|
}
|
|
|
|
// HELPER FUNCTIONS
|
|
// ================
|
|
|
|
var BP = Buffer.prototype
|
|
|
|
/**
|
|
* Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
|
|
*/
|
|
Buffer._augment = function (arr) {
|
|
arr._isBuffer = true
|
|
|
|
// save reference to original Uint8Array get/set methods before overwriting
|
|
arr._get = arr.get
|
|
arr._set = arr.set
|
|
|
|
// deprecated, will be removed in node 0.13+
|
|
arr.get = BP.get
|
|
arr.set = BP.set
|
|
|
|
arr.write = BP.write
|
|
arr.toString = BP.toString
|
|
arr.toLocaleString = BP.toString
|
|
arr.toJSON = BP.toJSON
|
|
arr.equals = BP.equals
|
|
arr.compare = BP.compare
|
|
arr.copy = BP.copy
|
|
arr.slice = BP.slice
|
|
arr.readUInt8 = BP.readUInt8
|
|
arr.readUInt16LE = BP.readUInt16LE
|
|
arr.readUInt16BE = BP.readUInt16BE
|
|
arr.readUInt32LE = BP.readUInt32LE
|
|
arr.readUInt32BE = BP.readUInt32BE
|
|
arr.readInt8 = BP.readInt8
|
|
arr.readInt16LE = BP.readInt16LE
|
|
arr.readInt16BE = BP.readInt16BE
|
|
arr.readInt32LE = BP.readInt32LE
|
|
arr.readInt32BE = BP.readInt32BE
|
|
arr.readFloatLE = BP.readFloatLE
|
|
arr.readFloatBE = BP.readFloatBE
|
|
arr.readDoubleLE = BP.readDoubleLE
|
|
arr.readDoubleBE = BP.readDoubleBE
|
|
arr.writeUInt8 = BP.writeUInt8
|
|
arr.writeUInt16LE = BP.writeUInt16LE
|
|
arr.writeUInt16BE = BP.writeUInt16BE
|
|
arr.writeUInt32LE = BP.writeUInt32LE
|
|
arr.writeUInt32BE = BP.writeUInt32BE
|
|
arr.writeInt8 = BP.writeInt8
|
|
arr.writeInt16LE = BP.writeInt16LE
|
|
arr.writeInt16BE = BP.writeInt16BE
|
|
arr.writeInt32LE = BP.writeInt32LE
|
|
arr.writeInt32BE = BP.writeInt32BE
|
|
arr.writeFloatLE = BP.writeFloatLE
|
|
arr.writeFloatBE = BP.writeFloatBE
|
|
arr.writeDoubleLE = BP.writeDoubleLE
|
|
arr.writeDoubleBE = BP.writeDoubleBE
|
|
arr.fill = BP.fill
|
|
arr.inspect = BP.inspect
|
|
arr.toArrayBuffer = BP.toArrayBuffer
|
|
|
|
return arr
|
|
}
|
|
|
|
var INVALID_BASE64_RE = /[^+\/0-9A-z]/g
|
|
|
|
function base64clean (str) {
|
|
// Node strips out invalid characters like \n and \t from the string, base64-js does not
|
|
str = stringtrim(str).replace(INVALID_BASE64_RE, '')
|
|
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
|
|
while (str.length % 4 !== 0) {
|
|
str = str + '='
|
|
}
|
|
return str
|
|
}
|
|
|
|
function stringtrim (str) {
|
|
if (str.trim) return str.trim()
|
|
return str.replace(/^\s+|\s+$/g, '')
|
|
}
|
|
|
|
// slice(start, end)
|
|
function clamp (index, len, defaultValue) {
|
|
if (typeof index !== 'number') return defaultValue
|
|
index = ~~index; // Coerce to integer.
|
|
if (index >= len) return len
|
|
if (index >= 0) return index
|
|
index += len
|
|
if (index >= 0) return index
|
|
return 0
|
|
}
|
|
|
|
function coerce (length) {
|
|
// Coerce length to a number (possibly NaN), round up
|
|
// in case it's fractional (e.g. 123.456) then do a
|
|
// double negate to coerce a NaN to 0. Easy, right?
|
|
length = ~~Math.ceil(+length)
|
|
return length < 0 ? 0 : length
|
|
}
|
|
|
|
function isArray (subject) {
|
|
return (Array.isArray || function (subject) {
|
|
return Object.prototype.toString.call(subject) === '[object Array]'
|
|
})(subject)
|
|
}
|
|
|
|
function isArrayish (subject) {
|
|
return isArray(subject) || Buffer.isBuffer(subject) ||
|
|
subject && typeof subject === 'object' &&
|
|
typeof subject.length === 'number'
|
|
}
|
|
|
|
function toHex (n) {
|
|
if (n < 16) return '0' + n.toString(16)
|
|
return n.toString(16)
|
|
}
|
|
|
|
function utf8ToBytes (str) {
|
|
var byteArray = []
|
|
for (var i = 0; i < str.length; i++) {
|
|
var b = str.charCodeAt(i)
|
|
if (b <= 0x7F) {
|
|
byteArray.push(b)
|
|
} else {
|
|
var start = i
|
|
if (b >= 0xD800 && b <= 0xDFFF) i++
|
|
var h = encodeURIComponent(str.slice(start, i+1)).substr(1).split('%')
|
|
for (var j = 0; j < h.length; j++) {
|
|
byteArray.push(parseInt(h[j], 16))
|
|
}
|
|
}
|
|
}
|
|
return byteArray
|
|
}
|
|
|
|
function asciiToBytes (str) {
|
|
var byteArray = []
|
|
for (var i = 0; i < str.length; i++) {
|
|
// Node's code seems to be doing this and not & 0x7F..
|
|
byteArray.push(str.charCodeAt(i) & 0xFF)
|
|
}
|
|
return byteArray
|
|
}
|
|
|
|
function utf16leToBytes (str) {
|
|
var c, hi, lo
|
|
var byteArray = []
|
|
for (var i = 0; i < str.length; i++) {
|
|
c = str.charCodeAt(i)
|
|
hi = c >> 8
|
|
lo = c % 256
|
|
byteArray.push(lo)
|
|
byteArray.push(hi)
|
|
}
|
|
|
|
return byteArray
|
|
}
|
|
|
|
function base64ToBytes (str) {
|
|
return base64.toByteArray(str)
|
|
}
|
|
|
|
function blitBuffer (src, dst, offset, length) {
|
|
for (var i = 0; i < length; i++) {
|
|
if ((i + offset >= dst.length) || (i >= src.length))
|
|
break
|
|
dst[i + offset] = src[i]
|
|
}
|
|
return i
|
|
}
|
|
|
|
function decodeUtf8Char (str) {
|
|
try {
|
|
return decodeURIComponent(str)
|
|
} catch (err) {
|
|
return String.fromCharCode(0xFFFD) // UTF 8 invalid char
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We have to make sure that the value is a valid integer. This means that it
|
|
* is non-negative. It has no fractional component and that it does not
|
|
* exceed the maximum allowed value.
|
|
*/
|
|
function verifuint (value, max) {
|
|
assert(typeof value === 'number', 'cannot write a non-number as a number')
|
|
assert(value >= 0, 'specified a negative value for writing an unsigned value')
|
|
assert(value <= max, 'value is larger than maximum value for type')
|
|
assert(Math.floor(value) === value, 'value has a fractional component')
|
|
}
|
|
|
|
function verifsint (value, max, min) {
|
|
assert(typeof value === 'number', 'cannot write a non-number as a number')
|
|
assert(value <= max, 'value larger than maximum allowed value')
|
|
assert(value >= min, 'value smaller than minimum allowed value')
|
|
assert(Math.floor(value) === value, 'value has a fractional component')
|
|
}
|
|
|
|
function verifIEEE754 (value, max, min) {
|
|
assert(typeof value === 'number', 'cannot write a non-number as a number')
|
|
assert(value <= max, 'value larger than maximum allowed value')
|
|
assert(value >= min, 'value smaller than minimum allowed value')
|
|
}
|
|
|
|
function assert (test, message) {
|
|
if (!test) throw new Error(message || 'Failed assertion')
|
|
}
|
|
|
|
},{"base64-js":7,"ieee754":8}],7:[function(_dereq_,module,exports){
|
|
var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
|
|
|
|
;(function (exports) {
|
|
'use strict';
|
|
|
|
var Arr = (typeof Uint8Array !== 'undefined')
|
|
? Uint8Array
|
|
: Array
|
|
|
|
var PLUS = '+'.charCodeAt(0)
|
|
var SLASH = '/'.charCodeAt(0)
|
|
var NUMBER = '0'.charCodeAt(0)
|
|
var LOWER = 'a'.charCodeAt(0)
|
|
var UPPER = 'A'.charCodeAt(0)
|
|
|
|
function decode (elt) {
|
|
var code = elt.charCodeAt(0)
|
|
if (code === PLUS)
|
|
return 62 // '+'
|
|
if (code === SLASH)
|
|
return 63 // '/'
|
|
if (code < NUMBER)
|
|
return -1 //no match
|
|
if (code < NUMBER + 10)
|
|
return code - NUMBER + 26 + 26
|
|
if (code < UPPER + 26)
|
|
return code - UPPER
|
|
if (code < LOWER + 26)
|
|
return code - LOWER + 26
|
|
}
|
|
|
|
function b64ToByteArray (b64) {
|
|
var i, j, l, tmp, placeHolders, arr
|
|
|
|
if (b64.length % 4 > 0) {
|
|
throw new Error('Invalid string. Length must be a multiple of 4')
|
|
}
|
|
|
|
// the number of equal signs (place holders)
|
|
// if there are two placeholders, than the two characters before it
|
|
// represent one byte
|
|
// if there is only one, then the three characters before it represent 2 bytes
|
|
// this is just a cheap hack to not do indexOf twice
|
|
var len = b64.length
|
|
placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0
|
|
|
|
// base64 is 4/3 + up to two characters of the original data
|
|
arr = new Arr(b64.length * 3 / 4 - placeHolders)
|
|
|
|
// if there are placeholders, only get up to the last complete 4 chars
|
|
l = placeHolders > 0 ? b64.length - 4 : b64.length
|
|
|
|
var L = 0
|
|
|
|
function push (v) {
|
|
arr[L++] = v
|
|
}
|
|
|
|
for (i = 0, j = 0; i < l; i += 4, j += 3) {
|
|
tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
|
|
push((tmp & 0xFF0000) >> 16)
|
|
push((tmp & 0xFF00) >> 8)
|
|
push(tmp & 0xFF)
|
|
}
|
|
|
|
if (placeHolders === 2) {
|
|
tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
|
|
push(tmp & 0xFF)
|
|
} else if (placeHolders === 1) {
|
|
tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
|
|
push((tmp >> 8) & 0xFF)
|
|
push(tmp & 0xFF)
|
|
}
|
|
|
|
return arr
|
|
}
|
|
|
|
function uint8ToBase64 (uint8) {
|
|
var i,
|
|
extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
|
|
output = "",
|
|
temp, length
|
|
|
|
function encode (num) {
|
|
return lookup.charAt(num)
|
|
}
|
|
|
|
function tripletToBase64 (num) {
|
|
return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
|
|
}
|
|
|
|
// go through the array every three bytes, we'll deal with trailing stuff later
|
|
for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
|
|
temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
|
|
output += tripletToBase64(temp)
|
|
}
|
|
|
|
// pad the end with zeros, but make sure to not forget the extra bytes
|
|
switch (extraBytes) {
|
|
case 1:
|
|
temp = uint8[uint8.length - 1]
|
|
output += encode(temp >> 2)
|
|
output += encode((temp << 4) & 0x3F)
|
|
output += '=='
|
|
break
|
|
case 2:
|
|
temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
|
|
output += encode(temp >> 10)
|
|
output += encode((temp >> 4) & 0x3F)
|
|
output += encode((temp << 2) & 0x3F)
|
|
output += '='
|
|
break
|
|
}
|
|
|
|
return output
|
|
}
|
|
|
|
exports.toByteArray = b64ToByteArray
|
|
exports.fromByteArray = uint8ToBase64
|
|
}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
|
|
|
|
},{}],8:[function(_dereq_,module,exports){
|
|
exports.read = function(buffer, offset, isLE, mLen, nBytes) {
|
|
var e, m,
|
|
eLen = nBytes * 8 - mLen - 1,
|
|
eMax = (1 << eLen) - 1,
|
|
eBias = eMax >> 1,
|
|
nBits = -7,
|
|
i = isLE ? (nBytes - 1) : 0,
|
|
d = isLE ? -1 : 1,
|
|
s = buffer[offset + i];
|
|
|
|
i += d;
|
|
|
|
e = s & ((1 << (-nBits)) - 1);
|
|
s >>= (-nBits);
|
|
nBits += eLen;
|
|
for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8);
|
|
|
|
m = e & ((1 << (-nBits)) - 1);
|
|
e >>= (-nBits);
|
|
nBits += mLen;
|
|
for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8);
|
|
|
|
if (e === 0) {
|
|
e = 1 - eBias;
|
|
} else if (e === eMax) {
|
|
return m ? NaN : ((s ? -1 : 1) * Infinity);
|
|
} else {
|
|
m = m + Math.pow(2, mLen);
|
|
e = e - eBias;
|
|
}
|
|
return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
|
|
};
|
|
|
|
exports.write = function(buffer, value, offset, isLE, mLen, nBytes) {
|
|
var e, m, c,
|
|
eLen = nBytes * 8 - mLen - 1,
|
|
eMax = (1 << eLen) - 1,
|
|
eBias = eMax >> 1,
|
|
rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
|
|
i = isLE ? 0 : (nBytes - 1),
|
|
d = isLE ? 1 : -1,
|
|
s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
|
|
|
|
value = Math.abs(value);
|
|
|
|
if (isNaN(value) || value === Infinity) {
|
|
m = isNaN(value) ? 1 : 0;
|
|
e = eMax;
|
|
} else {
|
|
e = Math.floor(Math.log(value) / Math.LN2);
|
|
if (value * (c = Math.pow(2, -e)) < 1) {
|
|
e--;
|
|
c *= 2;
|
|
}
|
|
if (e + eBias >= 1) {
|
|
value += rt / c;
|
|
} else {
|
|
value += rt * Math.pow(2, 1 - eBias);
|
|
}
|
|
if (value * c >= 2) {
|
|
e++;
|
|
c /= 2;
|
|
}
|
|
|
|
if (e + eBias >= eMax) {
|
|
m = 0;
|
|
e = eMax;
|
|
} else if (e + eBias >= 1) {
|
|
m = (value * c - 1) * Math.pow(2, mLen);
|
|
e = e + eBias;
|
|
} else {
|
|
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
|
|
e = 0;
|
|
}
|
|
}
|
|
|
|
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8);
|
|
|
|
e = (e << mLen) | m;
|
|
eLen += mLen;
|
|
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8);
|
|
|
|
buffer[offset + i - d] |= s * 128;
|
|
};
|
|
|
|
},{}],9:[function(_dereq_,module,exports){
|
|
// shim for using process in browser
|
|
|
|
var process = module.exports = {};
|
|
|
|
process.nextTick = (function () {
|
|
var canSetImmediate = typeof window !== 'undefined'
|
|
&& window.setImmediate;
|
|
var canPost = typeof window !== 'undefined'
|
|
&& window.postMessage && window.addEventListener
|
|
;
|
|
|
|
if (canSetImmediate) {
|
|
return function (f) { return window.setImmediate(f) };
|
|
}
|
|
|
|
if (canPost) {
|
|
var queue = [];
|
|
window.addEventListener('message', function (ev) {
|
|
var source = ev.source;
|
|
if ((source === window || source === null) && ev.data === 'process-tick') {
|
|
ev.stopPropagation();
|
|
if (queue.length > 0) {
|
|
var fn = queue.shift();
|
|
fn();
|
|
}
|
|
}
|
|
}, true);
|
|
|
|
return function nextTick(fn) {
|
|
queue.push(fn);
|
|
window.postMessage('process-tick', '*');
|
|
};
|
|
}
|
|
|
|
return function nextTick(fn) {
|
|
setTimeout(fn, 0);
|
|
};
|
|
})();
|
|
|
|
process.title = 'browser';
|
|
process.browser = true;
|
|
process.env = {};
|
|
process.argv = [];
|
|
|
|
function noop() {}
|
|
|
|
process.on = noop;
|
|
process.addListener = noop;
|
|
process.once = noop;
|
|
process.off = noop;
|
|
process.removeListener = noop;
|
|
process.removeAllListeners = noop;
|
|
process.emit = noop;
|
|
|
|
process.binding = function (name) {
|
|
throw new Error('process.binding is not supported');
|
|
}
|
|
|
|
// TODO(shtylman)
|
|
process.cwd = function () { return '/' };
|
|
process.chdir = function (dir) {
|
|
throw new Error('process.chdir is not supported');
|
|
};
|
|
|
|
},{}],10:[function(_dereq_,module,exports){
|
|
(function (Buffer){
|
|
function FilerBuffer (subject, encoding, nonZero) {
|
|
|
|
// Automatically turn ArrayBuffer into Uint8Array so that underlying
|
|
// Buffer code doesn't just throw away and ignore ArrayBuffer data.
|
|
if (subject instanceof ArrayBuffer) {
|
|
subject = new Uint8Array(subject);
|
|
}
|
|
|
|
return new Buffer(subject, encoding, nonZero);
|
|
};
|
|
|
|
// Inherit prototype from Buffer
|
|
FilerBuffer.prototype = Object.create(Buffer.prototype);
|
|
FilerBuffer.prototype.constructor = FilerBuffer;
|
|
|
|
// Also copy static methods onto FilerBuffer ctor
|
|
Object.keys(Buffer).forEach(function (p) {
|
|
if (Buffer.hasOwnProperty(p)) {
|
|
FilerBuffer[p] = Buffer[p];
|
|
}
|
|
});
|
|
|
|
module.exports = FilerBuffer;
|
|
|
|
}).call(this,_dereq_("buffer").Buffer)
|
|
},{"buffer":6}],11:[function(_dereq_,module,exports){
|
|
var O_READ = 'READ';
|
|
var O_WRITE = 'WRITE';
|
|
var O_CREATE = 'CREATE';
|
|
var O_EXCLUSIVE = 'EXCLUSIVE';
|
|
var O_TRUNCATE = 'TRUNCATE';
|
|
var O_APPEND = 'APPEND';
|
|
var XATTR_CREATE = 'CREATE';
|
|
var XATTR_REPLACE = 'REPLACE';
|
|
|
|
module.exports = {
|
|
FILE_SYSTEM_NAME: 'local',
|
|
|
|
FILE_STORE_NAME: 'files',
|
|
|
|
IDB_RO: 'readonly',
|
|
IDB_RW: 'readwrite',
|
|
|
|
WSQL_VERSION: "1",
|
|
WSQL_SIZE: 5 * 1024 * 1024,
|
|
WSQL_DESC: "FileSystem Storage",
|
|
|
|
MODE_FILE: 'FILE',
|
|
MODE_DIRECTORY: 'DIRECTORY',
|
|
MODE_SYMBOLIC_LINK: 'SYMLINK',
|
|
MODE_META: 'META',
|
|
|
|
SYMLOOP_MAX: 10,
|
|
|
|
BINARY_MIME_TYPE: 'application/octet-stream',
|
|
JSON_MIME_TYPE: 'application/json',
|
|
|
|
ROOT_DIRECTORY_NAME: '/', // basename(normalize(path))
|
|
|
|
// FS Mount Flags
|
|
FS_FORMAT: 'FORMAT',
|
|
FS_NOCTIME: 'NOCTIME',
|
|
FS_NOMTIME: 'NOMTIME',
|
|
FS_NODUPEIDCHECK: 'FS_NODUPEIDCHECK',
|
|
|
|
// FS File Open Flags
|
|
O_READ: O_READ,
|
|
O_WRITE: O_WRITE,
|
|
O_CREATE: O_CREATE,
|
|
O_EXCLUSIVE: O_EXCLUSIVE,
|
|
O_TRUNCATE: O_TRUNCATE,
|
|
O_APPEND: O_APPEND,
|
|
|
|
O_FLAGS: {
|
|
'r': [O_READ],
|
|
'r+': [O_READ, O_WRITE],
|
|
'w': [O_WRITE, O_CREATE, O_TRUNCATE],
|
|
'w+': [O_WRITE, O_READ, O_CREATE, O_TRUNCATE],
|
|
'wx': [O_WRITE, O_CREATE, O_EXCLUSIVE, O_TRUNCATE],
|
|
'wx+': [O_WRITE, O_READ, O_CREATE, O_EXCLUSIVE, O_TRUNCATE],
|
|
'a': [O_WRITE, O_CREATE, O_APPEND],
|
|
'a+': [O_WRITE, O_READ, O_CREATE, O_APPEND],
|
|
'ax': [O_WRITE, O_CREATE, O_EXCLUSIVE, O_APPEND],
|
|
'ax+': [O_WRITE, O_READ, O_CREATE, O_EXCLUSIVE, O_APPEND]
|
|
},
|
|
|
|
XATTR_CREATE: XATTR_CREATE,
|
|
XATTR_REPLACE: XATTR_REPLACE,
|
|
|
|
FS_READY: 'READY',
|
|
FS_PENDING: 'PENDING',
|
|
FS_ERROR: 'ERROR',
|
|
|
|
SUPER_NODE_ID: '00000000-0000-0000-0000-000000000000',
|
|
|
|
// Reserved File Descriptors for streams
|
|
STDIN: 0,
|
|
STDOUT: 1,
|
|
STDERR: 2,
|
|
FIRST_DESCRIPTOR: 3,
|
|
|
|
ENVIRONMENT: {
|
|
TMP: '/tmp',
|
|
PATH: ''
|
|
}
|
|
};
|
|
|
|
},{}],12:[function(_dereq_,module,exports){
|
|
var MODE_FILE = _dereq_('./constants.js').MODE_FILE;
|
|
|
|
module.exports = function DirectoryEntry(id, type) {
|
|
this.id = id;
|
|
this.type = type || MODE_FILE;
|
|
};
|
|
|
|
},{"./constants.js":11}],13:[function(_dereq_,module,exports){
|
|
(function (Buffer){
|
|
// Adapt encodings to work with Buffer or Uint8Array, they expect the latter
|
|
function decode(buf) {
|
|
return buf.toString('utf8');
|
|
}
|
|
|
|
function encode(string) {
|
|
return new Buffer(string, 'utf8');
|
|
}
|
|
|
|
module.exports = {
|
|
encode: encode,
|
|
decode: decode
|
|
};
|
|
|
|
}).call(this,_dereq_("buffer").Buffer)
|
|
},{"buffer":6}],14:[function(_dereq_,module,exports){
|
|
var errors = {};
|
|
[
|
|
/**
|
|
* node.js errors - we only use some of these, add as needed.
|
|
*/
|
|
//'-1:UNKNOWN:unknown error',
|
|
//'0:OK:success',
|
|
//'1:EOF:end of file',
|
|
//'2:EADDRINFO:getaddrinfo error',
|
|
//'3:EACCES:permission denied',
|
|
//'4:EAGAIN:resource temporarily unavailable',
|
|
//'5:EADDRINUSE:address already in use',
|
|
//'6:EADDRNOTAVAIL:address not available',
|
|
//'7:EAFNOSUPPORT:address family not supported',
|
|
//'8:EALREADY:connection already in progress',
|
|
'9:EBADF:bad file descriptor',
|
|
'10:EBUSY:resource busy or locked',
|
|
//'11:ECONNABORTED:software caused connection abort',
|
|
//'12:ECONNREFUSED:connection refused',
|
|
//'13:ECONNRESET:connection reset by peer',
|
|
//'14:EDESTADDRREQ:destination address required',
|
|
//'15:EFAULT:bad address in system call argument',
|
|
//'16:EHOSTUNREACH:host is unreachable',
|
|
//'17:EINTR:interrupted system call',
|
|
'18:EINVAL:invalid argument',
|
|
//'19:EISCONN:socket is already connected',
|
|
//'20:EMFILE:too many open files',
|
|
//'21:EMSGSIZE:message too long',
|
|
//'22:ENETDOWN:network is down',
|
|
//'23:ENETUNREACH:network is unreachable',
|
|
//'24:ENFILE:file table overflow',
|
|
//'25:ENOBUFS:no buffer space available',
|
|
//'26:ENOMEM:not enough memory',
|
|
'27:ENOTDIR:not a directory',
|
|
'28:EISDIR:illegal operation on a directory',
|
|
//'29:ENONET:machine is not on the network',
|
|
// errno 30 skipped, as per https://github.com/rvagg/node-errno/blob/master/errno.js
|
|
//'31:ENOTCONN:socket is not connected',
|
|
//'32:ENOTSOCK:socket operation on non-socket',
|
|
//'33:ENOTSUP:operation not supported on socket',
|
|
'34:ENOENT:no such file or directory',
|
|
//'35:ENOSYS:function not implemented',
|
|
//'36:EPIPE:broken pipe',
|
|
//'37:EPROTO:protocol error',
|
|
//'38:EPROTONOSUPPORT:protocol not supported',
|
|
//'39:EPROTOTYPE:protocol wrong type for socket',
|
|
//'40:ETIMEDOUT:connection timed out',
|
|
//'41:ECHARSET:invalid Unicode character',
|
|
//'42:EAIFAMNOSUPPORT:address family for hostname not supported',
|
|
// errno 43 skipped, as per https://github.com/rvagg/node-errno/blob/master/errno.js
|
|
//'44:EAISERVICE:servname not supported for ai_socktype',
|
|
//'45:EAISOCKTYPE:ai_socktype not supported',
|
|
//'46:ESHUTDOWN:cannot send after transport endpoint shutdown',
|
|
'47:EEXIST:file already exists',
|
|
//'48:ESRCH:no such process',
|
|
//'49:ENAMETOOLONG:name too long',
|
|
//'50:EPERM:operation not permitted',
|
|
'51:ELOOP:too many symbolic links encountered',
|
|
//'52:EXDEV:cross-device link not permitted',
|
|
'53:ENOTEMPTY:directory not empty',
|
|
//'54:ENOSPC:no space left on device',
|
|
'55:EIO:i/o error',
|
|
//'56:EROFS:read-only file system',
|
|
//'57:ENODEV:no such device',
|
|
//'58:ESPIPE:invalid seek',
|
|
//'59:ECANCELED:operation canceled',
|
|
|
|
/**
|
|
* Filer specific errors
|
|
*/
|
|
'1000:ENOTMOUNTED:not mounted',
|
|
'1001:EFILESYSTEMERROR:missing super node, use \'FORMAT\' flag to format filesystem.',
|
|
'1002:ENOATTR:attribute does not exist'
|
|
|
|
].forEach(function(e) {
|
|
e = e.split(':');
|
|
var errno = +e[0];
|
|
var errName = e[1];
|
|
var defaultMessage = e[2];
|
|
|
|
function FilerError(msg, path) {
|
|
Error.call(this);
|
|
|
|
this.name = errName;
|
|
this.code = errName;
|
|
this.errno = errno;
|
|
this.message = msg || defaultMessage;
|
|
if(path) {
|
|
this.path = path;
|
|
}
|
|
this.stack = (new Error(this.message)).stack;
|
|
}
|
|
FilerError.prototype = Object.create(Error.prototype);
|
|
FilerError.prototype.constructor = FilerError;
|
|
FilerError.prototype.toString = function() {
|
|
var pathInfo = this.path ? (', \'' + this.path + '\'') : '';
|
|
return this.name + ': ' + this.message + pathInfo;
|
|
};
|
|
|
|
// We expose the error as both Errors.EINVAL and Errors[18]
|
|
errors[errName] = errors[errno] = FilerError;
|
|
});
|
|
|
|
module.exports = errors;
|
|
|
|
},{}],15:[function(_dereq_,module,exports){
|
|
var _ = _dereq_('../../lib/nodash.js');
|
|
|
|
var Path = _dereq_('../path.js');
|
|
var normalize = Path.normalize;
|
|
var dirname = Path.dirname;
|
|
var basename = Path.basename;
|
|
var isAbsolutePath = Path.isAbsolute;
|
|
var isNullPath = Path.isNull;
|
|
|
|
var Constants = _dereq_('../constants.js');
|
|
var MODE_FILE = Constants.MODE_FILE;
|
|
var MODE_DIRECTORY = Constants.MODE_DIRECTORY;
|
|
var MODE_SYMBOLIC_LINK = Constants.MODE_SYMBOLIC_LINK;
|
|
var MODE_META = Constants.MODE_META;
|
|
|
|
var ROOT_DIRECTORY_NAME = Constants.ROOT_DIRECTORY_NAME;
|
|
var SUPER_NODE_ID = Constants.SUPER_NODE_ID;
|
|
var SYMLOOP_MAX = Constants.SYMLOOP_MAX;
|
|
|
|
var O_READ = Constants.O_READ;
|
|
var O_WRITE = Constants.O_WRITE;
|
|
var O_CREATE = Constants.O_CREATE;
|
|
var O_EXCLUSIVE = Constants.O_EXCLUSIVE;
|
|
var O_TRUNCATE = Constants.O_TRUNCATE;
|
|
var O_APPEND = Constants.O_APPEND;
|
|
var O_FLAGS = Constants.O_FLAGS;
|
|
|
|
var XATTR_CREATE = Constants.XATTR_CREATE;
|
|
var XATTR_REPLACE = Constants.XATTR_REPLACE;
|
|
var FS_NOMTIME = Constants.FS_NOMTIME;
|
|
var FS_NOCTIME = Constants.FS_NOCTIME;
|
|
|
|
var Encoding = _dereq_('../encoding.js');
|
|
var Errors = _dereq_('../errors.js');
|
|
var DirectoryEntry = _dereq_('../directory-entry.js');
|
|
var OpenFileDescription = _dereq_('../open-file-description.js');
|
|
var SuperNode = _dereq_('../super-node.js');
|
|
var Node = _dereq_('../node.js');
|
|
var Stats = _dereq_('../stats.js');
|
|
var Buffer = _dereq_('../buffer.js');
|
|
|
|
/**
|
|
* Many functions below use this callback pattern. If it's not
|
|
* re-defined, we use this to generate a callback. NOTE: this
|
|
* can be use for callbacks of both forms without problem (i.e.,
|
|
* since result will be undefined if not returned):
|
|
* - callback(error)
|
|
* - callback(error, result)
|
|
*/
|
|
function standard_check_result_cb(callback) {
|
|
return function(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
callback(null, result);
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Update node times. Only passed times are modified (undefined times are ignored)
|
|
* and filesystem flags are examined in order to override update logic.
|
|
*/
|
|
function update_node_times(context, path, node, times, callback) {
|
|
// Honour mount flags for how we update times
|
|
var flags = context.flags;
|
|
if(_(flags).contains(FS_NOCTIME)) {
|
|
delete times.ctime;
|
|
}
|
|
if(_(flags).contains(FS_NOMTIME)) {
|
|
delete times.mtime;
|
|
}
|
|
|
|
// Only do the update if required (i.e., times are still present)
|
|
var update = false;
|
|
if(times.ctime) {
|
|
node.ctime = times.ctime;
|
|
// We don't do atime tracking for perf reasons, but do mirror ctime
|
|
node.atime = times.ctime;
|
|
update = true;
|
|
}
|
|
if(times.atime) {
|
|
// The only time we explicitly pass atime is when utimes(), futimes() is called.
|
|
// Override ctime mirror here if so
|
|
node.atime = times.atime;
|
|
update = true;
|
|
}
|
|
if(times.mtime) {
|
|
node.mtime = times.mtime;
|
|
update = true;
|
|
}
|
|
|
|
function complete(error) {
|
|
// Queue this change so we can send watch events.
|
|
// Unlike node.js, we send the full path vs. basename/dirname only.
|
|
context.changes.push({ event: 'change', path: path });
|
|
callback(error);
|
|
}
|
|
|
|
if(update) {
|
|
context.putObject(node.id, node, complete);
|
|
} else {
|
|
complete();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* make_node()
|
|
*/
|
|
// in: file or directory path
|
|
// out: new node representing file/directory
|
|
function make_node(context, path, mode, callback) {
|
|
if(mode !== MODE_DIRECTORY && mode !== MODE_FILE) {
|
|
return callback(new Errors.EINVAL('mode must be a directory or file', path));
|
|
}
|
|
|
|
path = normalize(path);
|
|
|
|
var name = basename(path);
|
|
var parentPath = dirname(path);
|
|
var parentNode;
|
|
var parentNodeData;
|
|
var node;
|
|
|
|
// Check if the parent node exists
|
|
function create_node_in_parent(error, parentDirectoryNode) {
|
|
if(error) {
|
|
callback(error);
|
|
} else if(parentDirectoryNode.mode !== MODE_DIRECTORY) {
|
|
callback(new Errors.ENOTDIR('a component of the path prefix is not a directory', path));
|
|
} else {
|
|
parentNode = parentDirectoryNode;
|
|
find_node(context, path, check_if_node_exists);
|
|
}
|
|
}
|
|
|
|
// Check if the node to be created already exists
|
|
function check_if_node_exists(error, result) {
|
|
if(!error && result) {
|
|
callback(new Errors.EEXIST('path name already exists', path));
|
|
} else if(error && !(error instanceof Errors.ENOENT)) {
|
|
callback(error);
|
|
} else {
|
|
context.getObject(parentNode.data, create_node);
|
|
}
|
|
}
|
|
|
|
// Create the new node
|
|
function create_node(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
parentNodeData = result;
|
|
Node.create({guid: context.guid, mode: mode}, function(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
node = result;
|
|
node.nlinks += 1;
|
|
context.putObject(node.id, node, update_parent_node_data);
|
|
});
|
|
}
|
|
}
|
|
|
|
// Update parent node time
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, parentPath, node, { mtime: now, ctime: now }, callback);
|
|
}
|
|
}
|
|
|
|
// Update the parent nodes data
|
|
function update_parent_node_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
parentNodeData[name] = new DirectoryEntry(node.id, mode);
|
|
context.putObject(parentNode.data, parentNodeData, update_time);
|
|
}
|
|
}
|
|
|
|
// Find the parent node
|
|
find_node(context, parentPath, create_node_in_parent);
|
|
}
|
|
|
|
/**
|
|
* find_node
|
|
*/
|
|
// in: file or directory path
|
|
// out: node structure, or error
|
|
function find_node(context, path, callback) {
|
|
path = normalize(path);
|
|
if(!path) {
|
|
return callback(new Errors.ENOENT('path is an empty string'));
|
|
}
|
|
var name = basename(path);
|
|
var parentPath = dirname(path);
|
|
var followedCount = 0;
|
|
|
|
function read_root_directory_node(error, superNode) {
|
|
if(error) {
|
|
callback(error);
|
|
} else if(!superNode || superNode.mode !== MODE_META || !superNode.rnode) {
|
|
callback(new Errors.EFILESYSTEMERROR());
|
|
} else {
|
|
context.getObject(superNode.rnode, check_root_directory_node);
|
|
}
|
|
}
|
|
|
|
function check_root_directory_node(error, rootDirectoryNode) {
|
|
if(error) {
|
|
callback(error);
|
|
} else if(!rootDirectoryNode) {
|
|
callback(new Errors.ENOENT());
|
|
} else {
|
|
callback(null, rootDirectoryNode);
|
|
}
|
|
}
|
|
|
|
// in: parent directory node
|
|
// out: parent directory data
|
|
function read_parent_directory_data(error, parentDirectoryNode) {
|
|
if(error) {
|
|
callback(error);
|
|
} else if(parentDirectoryNode.mode !== MODE_DIRECTORY || !parentDirectoryNode.data) {
|
|
callback(new Errors.ENOTDIR('a component of the path prefix is not a directory', path));
|
|
} else {
|
|
context.getObject(parentDirectoryNode.data, get_node_from_parent_directory_data);
|
|
}
|
|
}
|
|
|
|
// in: parent directory data
|
|
// out: searched node
|
|
function get_node_from_parent_directory_data(error, parentDirectoryData) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
if(!_(parentDirectoryData).has(name)) {
|
|
callback(new Errors.ENOENT(null, path));
|
|
} else {
|
|
var nodeId = parentDirectoryData[name].id;
|
|
context.getObject(nodeId, is_symbolic_link);
|
|
}
|
|
}
|
|
}
|
|
|
|
function is_symbolic_link(error, node) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
if(node.mode == MODE_SYMBOLIC_LINK) {
|
|
followedCount++;
|
|
if(followedCount > SYMLOOP_MAX){
|
|
callback(new Errors.ELOOP(null, path));
|
|
} else {
|
|
follow_symbolic_link(node.data);
|
|
}
|
|
} else {
|
|
callback(null, node);
|
|
}
|
|
}
|
|
}
|
|
|
|
function follow_symbolic_link(data) {
|
|
data = normalize(data);
|
|
parentPath = dirname(data);
|
|
name = basename(data);
|
|
if(ROOT_DIRECTORY_NAME == name) {
|
|
context.getObject(SUPER_NODE_ID, read_root_directory_node);
|
|
} else {
|
|
find_node(context, parentPath, read_parent_directory_data);
|
|
}
|
|
}
|
|
|
|
if(ROOT_DIRECTORY_NAME == name) {
|
|
context.getObject(SUPER_NODE_ID, read_root_directory_node);
|
|
} else {
|
|
find_node(context, parentPath, read_parent_directory_data);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* set extended attribute (refactor)
|
|
*/
|
|
function set_extended_attribute (context, path_or_fd, name, value, flag, callback) {
|
|
var path;
|
|
|
|
function set_xattr (error, node) {
|
|
var xattr = (node ? node.xattrs[name] : null);
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
update_node_times(context, path, node, { ctime: Date.now() }, callback);
|
|
}
|
|
}
|
|
|
|
if (error) {
|
|
callback(error);
|
|
}
|
|
else if (flag === XATTR_CREATE && node.xattrs.hasOwnProperty(name)) {
|
|
callback(new Errors.EEXIST('attribute already exists', path_or_fd));
|
|
}
|
|
else if (flag === XATTR_REPLACE && !node.xattrs.hasOwnProperty(name)) {
|
|
callback(new Errors.ENOATTR(null, path_or_fd));
|
|
}
|
|
else {
|
|
node.xattrs[name] = value;
|
|
context.putObject(node.id, node, update_time);
|
|
}
|
|
}
|
|
|
|
if (typeof path_or_fd == 'string') {
|
|
path = path_or_fd;
|
|
find_node(context, path_or_fd, set_xattr);
|
|
}
|
|
else if (typeof path_or_fd == 'object' && typeof path_or_fd.id == 'string') {
|
|
path = path_or_fd.path;
|
|
context.getObject(path_or_fd.id, set_xattr);
|
|
}
|
|
else {
|
|
callback(new Errors.EINVAL('path or file descriptor of wrong type', path_or_fd));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ensure_root_directory. Creates a root node if necessary.
|
|
*
|
|
* Note: this should only be invoked when formatting a new file system.
|
|
* Multiple invocations of this by separate instances will still result
|
|
* in only a single super node.
|
|
*/
|
|
function ensure_root_directory(context, callback) {
|
|
var superNode;
|
|
var directoryNode;
|
|
var directoryData;
|
|
|
|
function ensure_super_node(error, existingNode) {
|
|
if(!error && existingNode) {
|
|
// Another instance has beat us and already created the super node.
|
|
callback();
|
|
} else if(error && !(error instanceof Errors.ENOENT)) {
|
|
callback(error);
|
|
} else {
|
|
SuperNode.create({guid: context.guid}, function(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
superNode = result;
|
|
context.putObject(superNode.id, superNode, write_directory_node);
|
|
});
|
|
}
|
|
}
|
|
|
|
function write_directory_node(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
Node.create({guid: context.guid, id: superNode.rnode, mode: MODE_DIRECTORY}, function(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
directoryNode = result;
|
|
directoryNode.nlinks += 1;
|
|
context.putObject(directoryNode.id, directoryNode, write_directory_data);
|
|
});
|
|
}
|
|
}
|
|
|
|
function write_directory_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = {};
|
|
context.putObject(directoryNode.data, directoryData, callback);
|
|
}
|
|
}
|
|
|
|
context.getObject(SUPER_NODE_ID, ensure_super_node);
|
|
}
|
|
|
|
/**
|
|
* make_directory
|
|
*/
|
|
function make_directory(context, path, callback) {
|
|
path = normalize(path);
|
|
var name = basename(path);
|
|
var parentPath = dirname(path);
|
|
|
|
var directoryNode;
|
|
var directoryData;
|
|
var parentDirectoryNode;
|
|
var parentDirectoryData;
|
|
|
|
function check_if_directory_exists(error, result) {
|
|
if(!error && result) {
|
|
callback(new Errors.EEXIST(null, path));
|
|
} else if(error && !(error instanceof Errors.ENOENT)) {
|
|
callback(error);
|
|
} else {
|
|
find_node(context, parentPath, read_parent_directory_data);
|
|
}
|
|
}
|
|
|
|
function read_parent_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
parentDirectoryNode = result;
|
|
context.getObject(parentDirectoryNode.data, write_directory_node);
|
|
}
|
|
}
|
|
|
|
function write_directory_node(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
parentDirectoryData = result;
|
|
Node.create({guid: context.guid, mode: MODE_DIRECTORY}, function(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
directoryNode = result;
|
|
directoryNode.nlinks += 1;
|
|
context.putObject(directoryNode.id, directoryNode, write_directory_data);
|
|
});
|
|
}
|
|
}
|
|
|
|
function write_directory_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = {};
|
|
context.putObject(directoryNode.data, directoryData, update_parent_directory_data);
|
|
}
|
|
}
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, parentPath, parentDirectoryNode, { mtime: now, ctime: now }, callback);
|
|
}
|
|
}
|
|
|
|
function update_parent_directory_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
parentDirectoryData[name] = new DirectoryEntry(directoryNode.id, MODE_DIRECTORY);
|
|
context.putObject(parentDirectoryNode.data, parentDirectoryData, update_time);
|
|
}
|
|
}
|
|
|
|
find_node(context, path, check_if_directory_exists);
|
|
}
|
|
|
|
/**
|
|
* remove_directory
|
|
*/
|
|
function remove_directory(context, path, callback) {
|
|
path = normalize(path);
|
|
var name = basename(path);
|
|
var parentPath = dirname(path);
|
|
|
|
var directoryNode;
|
|
var directoryData;
|
|
var parentDirectoryNode;
|
|
var parentDirectoryData;
|
|
|
|
function read_parent_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
parentDirectoryNode = result;
|
|
context.getObject(parentDirectoryNode.data, check_if_node_exists);
|
|
}
|
|
}
|
|
|
|
function check_if_node_exists(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else if(ROOT_DIRECTORY_NAME == name) {
|
|
callback(new Errors.EBUSY(null, path));
|
|
} else if(!_(result).has(name)) {
|
|
callback(new Errors.ENOENT(null, path));
|
|
} else {
|
|
parentDirectoryData = result;
|
|
directoryNode = parentDirectoryData[name].id;
|
|
context.getObject(directoryNode, check_if_node_is_directory);
|
|
}
|
|
}
|
|
|
|
function check_if_node_is_directory(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else if(result.mode != MODE_DIRECTORY) {
|
|
callback(new Errors.ENOTDIR(null, path));
|
|
} else {
|
|
directoryNode = result;
|
|
context.getObject(directoryNode.data, check_if_directory_is_empty);
|
|
}
|
|
}
|
|
|
|
function check_if_directory_is_empty(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = result;
|
|
if(_(directoryData).size() > 0) {
|
|
callback(new Errors.ENOTEMPTY(null, path));
|
|
} else {
|
|
remove_directory_entry_from_parent_directory_node();
|
|
}
|
|
}
|
|
}
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, parentPath, parentDirectoryNode, { mtime: now, ctime: now }, remove_directory_node);
|
|
}
|
|
}
|
|
|
|
function remove_directory_entry_from_parent_directory_node() {
|
|
delete parentDirectoryData[name];
|
|
context.putObject(parentDirectoryNode.data, parentDirectoryData, update_time);
|
|
}
|
|
|
|
function remove_directory_node(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
context.delete(directoryNode.id, remove_directory_data);
|
|
}
|
|
}
|
|
|
|
function remove_directory_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
context.delete(directoryNode.data, callback);
|
|
}
|
|
}
|
|
|
|
find_node(context, parentPath, read_parent_directory_data);
|
|
}
|
|
|
|
function open_file(context, path, flags, callback) {
|
|
path = normalize(path);
|
|
var name = basename(path);
|
|
var parentPath = dirname(path);
|
|
|
|
var directoryNode;
|
|
var directoryData;
|
|
var directoryEntry;
|
|
var fileNode;
|
|
var fileData;
|
|
|
|
var followedCount = 0;
|
|
|
|
if(ROOT_DIRECTORY_NAME == name) {
|
|
if(_(flags).contains(O_WRITE)) {
|
|
callback(new Errors.EISDIR('the named file is a directory and O_WRITE is set', path));
|
|
} else {
|
|
find_node(context, path, set_file_node);
|
|
}
|
|
} else {
|
|
find_node(context, parentPath, read_directory_data);
|
|
}
|
|
|
|
function read_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else if(result.mode !== MODE_DIRECTORY) {
|
|
callback(new Errors.ENOENT(null, path));
|
|
} else {
|
|
directoryNode = result;
|
|
context.getObject(directoryNode.data, check_if_file_exists);
|
|
}
|
|
}
|
|
|
|
function check_if_file_exists(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = result;
|
|
if(_(directoryData).has(name)) {
|
|
if(_(flags).contains(O_EXCLUSIVE)) {
|
|
callback(new Errors.ENOENT('O_CREATE and O_EXCLUSIVE are set, and the named file exists', path));
|
|
} else {
|
|
directoryEntry = directoryData[name];
|
|
if(directoryEntry.type == MODE_DIRECTORY && _(flags).contains(O_WRITE)) {
|
|
callback(new Errors.EISDIR('the named file is a directory and O_WRITE is set', path));
|
|
} else {
|
|
context.getObject(directoryEntry.id, check_if_symbolic_link);
|
|
}
|
|
}
|
|
} else {
|
|
if(!_(flags).contains(O_CREATE)) {
|
|
callback(new Errors.ENOENT('O_CREATE is not set and the named file does not exist', path));
|
|
} else {
|
|
write_file_node();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function check_if_symbolic_link(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var node = result;
|
|
if(node.mode == MODE_SYMBOLIC_LINK) {
|
|
followedCount++;
|
|
if(followedCount > SYMLOOP_MAX){
|
|
callback(new Errors.ELOOP(null, path));
|
|
} else {
|
|
follow_symbolic_link(node.data);
|
|
}
|
|
} else {
|
|
set_file_node(undefined, node);
|
|
}
|
|
}
|
|
}
|
|
|
|
function follow_symbolic_link(data) {
|
|
data = normalize(data);
|
|
parentPath = dirname(data);
|
|
name = basename(data);
|
|
if(ROOT_DIRECTORY_NAME == name) {
|
|
if(_(flags).contains(O_WRITE)) {
|
|
callback(new Errors.EISDIR('the named file is a directory and O_WRITE is set', path));
|
|
} else {
|
|
find_node(context, path, set_file_node);
|
|
}
|
|
}
|
|
find_node(context, parentPath, read_directory_data);
|
|
}
|
|
|
|
function set_file_node(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileNode = result;
|
|
callback(null, fileNode);
|
|
}
|
|
}
|
|
|
|
function write_file_node() {
|
|
Node.create({guid: context.guid, mode: MODE_FILE}, function(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
fileNode = result;
|
|
fileNode.nlinks += 1;
|
|
context.putObject(fileNode.id, fileNode, write_file_data);
|
|
});
|
|
}
|
|
|
|
function write_file_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileData = new Buffer(0);
|
|
fileData.fill(0);
|
|
context.putBuffer(fileNode.data, fileData, update_directory_data);
|
|
}
|
|
}
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, parentPath, directoryNode, { mtime: now, ctime: now }, handle_update_result);
|
|
}
|
|
}
|
|
|
|
function update_directory_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData[name] = new DirectoryEntry(fileNode.id, MODE_FILE);
|
|
context.putObject(directoryNode.data, directoryData, update_time);
|
|
}
|
|
}
|
|
|
|
function handle_update_result(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
callback(null, fileNode);
|
|
}
|
|
}
|
|
}
|
|
|
|
function replace_data(context, ofd, buffer, offset, length, callback) {
|
|
var fileNode;
|
|
|
|
function return_nbytes(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
callback(null, length);
|
|
}
|
|
}
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, ofd.path, fileNode, { mtime: now, ctime: now }, return_nbytes);
|
|
}
|
|
}
|
|
|
|
function update_file_node(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
context.putObject(fileNode.id, fileNode, update_time);
|
|
}
|
|
}
|
|
|
|
function write_file_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileNode = result;
|
|
var newData = new Buffer(length);
|
|
newData.fill(0);
|
|
buffer.copy(newData, 0, offset, offset + length);
|
|
ofd.position = length;
|
|
|
|
fileNode.size = length;
|
|
fileNode.version += 1;
|
|
|
|
context.putBuffer(fileNode.data, newData, update_file_node);
|
|
}
|
|
}
|
|
|
|
context.getObject(ofd.id, write_file_data);
|
|
}
|
|
|
|
function write_data(context, ofd, buffer, offset, length, position, callback) {
|
|
var fileNode;
|
|
var fileData;
|
|
|
|
function return_nbytes(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
callback(null, length);
|
|
}
|
|
}
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, ofd.path, fileNode, { mtime: now, ctime: now }, return_nbytes);
|
|
}
|
|
}
|
|
|
|
function update_file_node(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
context.putObject(fileNode.id, fileNode, update_time);
|
|
}
|
|
}
|
|
|
|
function update_file_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileData = result;
|
|
if(!fileData) {
|
|
return callback(new Errors.EIO('Expected Buffer'));
|
|
}
|
|
var _position = (!(undefined === position || null === position)) ? position : ofd.position;
|
|
var newSize = Math.max(fileData.length, _position + length);
|
|
var newData = new Buffer(newSize);
|
|
newData.fill(0);
|
|
if(fileData) {
|
|
fileData.copy(newData);
|
|
}
|
|
buffer.copy(newData, _position, offset, offset + length);
|
|
if(undefined === position) {
|
|
ofd.position += length;
|
|
}
|
|
|
|
fileNode.size = newSize;
|
|
fileNode.version += 1;
|
|
|
|
context.putBuffer(fileNode.data, newData, update_file_node);
|
|
}
|
|
}
|
|
|
|
function read_file_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileNode = result;
|
|
context.getBuffer(fileNode.data, update_file_data);
|
|
}
|
|
}
|
|
|
|
context.getObject(ofd.id, read_file_data);
|
|
}
|
|
|
|
function read_data(context, ofd, buffer, offset, length, position, callback) {
|
|
var fileNode;
|
|
var fileData;
|
|
|
|
function handle_file_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileData = result;
|
|
if(!fileData) {
|
|
return callback(new Errors.EIO('Expected Buffer'));
|
|
}
|
|
var _position = (!(undefined === position || null === position)) ? position : ofd.position;
|
|
length = (_position + length > buffer.length) ? length - _position : length;
|
|
fileData.copy(buffer, offset, _position, _position + length);
|
|
if(undefined === position) {
|
|
ofd.position += length;
|
|
}
|
|
callback(null, length);
|
|
}
|
|
}
|
|
|
|
function read_file_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileNode = result;
|
|
context.getBuffer(fileNode.data, handle_file_data);
|
|
}
|
|
}
|
|
|
|
context.getObject(ofd.id, read_file_data);
|
|
}
|
|
|
|
function stat_file(context, path, callback) {
|
|
path = normalize(path);
|
|
var name = basename(path);
|
|
find_node(context, path, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function fstat_file(context, ofd, callback) {
|
|
context.getObject(ofd.id, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function lstat_file(context, path, callback) {
|
|
path = normalize(path);
|
|
var name = basename(path);
|
|
var parentPath = dirname(path);
|
|
|
|
var directoryNode;
|
|
var directoryData;
|
|
|
|
if(ROOT_DIRECTORY_NAME == name) {
|
|
find_node(context, path, standard_check_result_cb(callback));
|
|
} else {
|
|
find_node(context, parentPath, read_directory_data);
|
|
}
|
|
|
|
function read_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryNode = result;
|
|
context.getObject(directoryNode.data, check_if_file_exists);
|
|
}
|
|
}
|
|
|
|
function check_if_file_exists(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = result;
|
|
if(!_(directoryData).has(name)) {
|
|
callback(new Errors.ENOENT('a component of the path does not name an existing file', path));
|
|
} else {
|
|
context.getObject(directoryData[name].id, standard_check_result_cb(callback));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function link_node(context, oldpath, newpath, callback) {
|
|
oldpath = normalize(oldpath);
|
|
var oldname = basename(oldpath);
|
|
var oldParentPath = dirname(oldpath);
|
|
|
|
newpath = normalize(newpath);
|
|
var newname = basename(newpath);
|
|
var newParentPath = dirname(newpath);
|
|
|
|
var oldDirectoryNode;
|
|
var oldDirectoryData;
|
|
var newDirectoryNode;
|
|
var newDirectoryData;
|
|
var fileNode;
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
update_node_times(context, newpath, fileNode, { ctime: Date.now() }, callback);
|
|
}
|
|
}
|
|
|
|
function update_file_node(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileNode = result;
|
|
fileNode.nlinks += 1;
|
|
context.putObject(fileNode.id, fileNode, update_time);
|
|
}
|
|
}
|
|
|
|
function read_directory_entry(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
context.getObject(newDirectoryData[newname].id, update_file_node);
|
|
}
|
|
}
|
|
|
|
function check_if_new_file_exists(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
newDirectoryData = result;
|
|
if(_(newDirectoryData).has(newname)) {
|
|
callback(new Errors.EEXIST('newpath resolves to an existing file', newname));
|
|
} else {
|
|
newDirectoryData[newname] = oldDirectoryData[oldname];
|
|
context.putObject(newDirectoryNode.data, newDirectoryData, read_directory_entry);
|
|
}
|
|
}
|
|
}
|
|
|
|
function read_new_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
newDirectoryNode = result;
|
|
context.getObject(newDirectoryNode.data, check_if_new_file_exists);
|
|
}
|
|
}
|
|
|
|
function check_if_old_file_exists(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
oldDirectoryData = result;
|
|
if(!_(oldDirectoryData).has(oldname)) {
|
|
callback(new Errors.ENOENT('a component of either path prefix does not exist', oldname));
|
|
} else {
|
|
find_node(context, newParentPath, read_new_directory_data);
|
|
}
|
|
}
|
|
}
|
|
|
|
function read_old_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
oldDirectoryNode = result;
|
|
context.getObject(oldDirectoryNode.data, check_if_old_file_exists);
|
|
}
|
|
}
|
|
|
|
find_node(context, oldParentPath, read_old_directory_data);
|
|
}
|
|
|
|
function unlink_node(context, path, callback) {
|
|
path = normalize(path);
|
|
var name = basename(path);
|
|
var parentPath = dirname(path);
|
|
|
|
var directoryNode;
|
|
var directoryData;
|
|
var fileNode;
|
|
|
|
function update_directory_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
delete directoryData[name];
|
|
context.putObject(directoryNode.data, directoryData, function(error) {
|
|
var now = Date.now();
|
|
update_node_times(context, parentPath, directoryNode, { mtime: now, ctime: now }, callback);
|
|
});
|
|
}
|
|
}
|
|
|
|
function delete_file_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
context.delete(fileNode.data, update_directory_data);
|
|
}
|
|
}
|
|
|
|
function update_file_node(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileNode = result;
|
|
fileNode.nlinks -= 1;
|
|
if(fileNode.nlinks < 1) {
|
|
context.delete(fileNode.id, delete_file_data);
|
|
} else {
|
|
context.putObject(fileNode.id, fileNode, function(error) {
|
|
update_node_times(context, path, fileNode, { ctime: Date.now() }, update_directory_data);
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
function check_if_file_exists(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = result;
|
|
if(!_(directoryData).has(name)) {
|
|
callback(new Errors.ENOENT('a component of the path does not name an existing file', name));
|
|
} else {
|
|
context.getObject(directoryData[name].id, update_file_node);
|
|
}
|
|
}
|
|
}
|
|
|
|
function read_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryNode = result;
|
|
context.getObject(directoryNode.data, check_if_file_exists);
|
|
}
|
|
}
|
|
|
|
find_node(context, parentPath, read_directory_data);
|
|
}
|
|
|
|
function read_directory(context, path, callback) {
|
|
path = normalize(path);
|
|
var name = basename(path);
|
|
|
|
var directoryNode;
|
|
var directoryData;
|
|
|
|
function handle_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = result;
|
|
var files = Object.keys(directoryData);
|
|
callback(null, files);
|
|
}
|
|
}
|
|
|
|
function read_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else if(result.mode !== MODE_DIRECTORY) {
|
|
callback(new Errors.ENOTDIR(null, path));
|
|
} else {
|
|
directoryNode = result;
|
|
context.getObject(directoryNode.data, handle_directory_data);
|
|
}
|
|
}
|
|
|
|
find_node(context, path, read_directory_data);
|
|
}
|
|
|
|
function make_symbolic_link(context, srcpath, dstpath, callback) {
|
|
dstpath = normalize(dstpath);
|
|
var name = basename(dstpath);
|
|
var parentPath = dirname(dstpath);
|
|
|
|
var directoryNode;
|
|
var directoryData;
|
|
var fileNode;
|
|
|
|
if(ROOT_DIRECTORY_NAME == name) {
|
|
callback(new Errors.EEXIST(null, name));
|
|
} else {
|
|
find_node(context, parentPath, read_directory_data);
|
|
}
|
|
|
|
function read_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryNode = result;
|
|
context.getObject(directoryNode.data, check_if_file_exists);
|
|
}
|
|
}
|
|
|
|
function check_if_file_exists(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = result;
|
|
if(_(directoryData).has(name)) {
|
|
callback(new Errors.EEXIST(null, name));
|
|
} else {
|
|
write_file_node();
|
|
}
|
|
}
|
|
}
|
|
|
|
function write_file_node() {
|
|
Node.create({guid: context.guid, mode: MODE_SYMBOLIC_LINK}, function(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
fileNode = result;
|
|
fileNode.nlinks += 1;
|
|
fileNode.size = srcpath.length;
|
|
fileNode.data = srcpath;
|
|
context.putObject(fileNode.id, fileNode, update_directory_data);
|
|
});
|
|
}
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, parentPath, directoryNode, { mtime: now, ctime: now }, callback);
|
|
}
|
|
}
|
|
|
|
function update_directory_data(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData[name] = new DirectoryEntry(fileNode.id, MODE_SYMBOLIC_LINK);
|
|
context.putObject(directoryNode.data, directoryData, update_time);
|
|
}
|
|
}
|
|
}
|
|
|
|
function read_link(context, path, callback) {
|
|
path = normalize(path);
|
|
var name = basename(path);
|
|
var parentPath = dirname(path);
|
|
|
|
var directoryNode;
|
|
var directoryData;
|
|
|
|
find_node(context, parentPath, read_directory_data);
|
|
|
|
function read_directory_data(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryNode = result;
|
|
context.getObject(directoryNode.data, check_if_file_exists);
|
|
}
|
|
}
|
|
|
|
function check_if_file_exists(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
directoryData = result;
|
|
if(!_(directoryData).has(name)) {
|
|
callback(new Errors.ENOENT('a component of the path does not name an existing file', name));
|
|
} else {
|
|
context.getObject(directoryData[name].id, check_if_symbolic);
|
|
}
|
|
}
|
|
}
|
|
|
|
function check_if_symbolic(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
if(result.mode != MODE_SYMBOLIC_LINK) {
|
|
callback(new Errors.EINVAL('path not a symbolic link', path));
|
|
} else {
|
|
callback(null, result.data);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function truncate_file(context, path, length, callback) {
|
|
path = normalize(path);
|
|
|
|
var fileNode;
|
|
|
|
function read_file_data (error, node) {
|
|
if (error) {
|
|
callback(error);
|
|
} else if(node.mode == MODE_DIRECTORY ) {
|
|
callback(new Errors.EISDIR(null, path));
|
|
} else{
|
|
fileNode = node;
|
|
context.getBuffer(fileNode.data, truncate_file_data);
|
|
}
|
|
}
|
|
|
|
function truncate_file_data(error, fileData) {
|
|
if (error) {
|
|
callback(error);
|
|
} else {
|
|
if(!fileData) {
|
|
return callback(new Errors.EIO('Expected Buffer'));
|
|
}
|
|
var data = new Buffer(length);
|
|
data.fill(0);
|
|
if(fileData) {
|
|
fileData.copy(data);
|
|
}
|
|
context.putBuffer(fileNode.data, data, update_file_node);
|
|
}
|
|
}
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, path, fileNode, { mtime: now, ctime: now }, callback);
|
|
}
|
|
}
|
|
|
|
function update_file_node (error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileNode.size = length;
|
|
fileNode.version += 1;
|
|
context.putObject(fileNode.id, fileNode, update_time);
|
|
}
|
|
}
|
|
|
|
if(length < 0) {
|
|
callback(new Errors.EINVAL('length cannot be negative'));
|
|
} else {
|
|
find_node(context, path, read_file_data);
|
|
}
|
|
}
|
|
|
|
function ftruncate_file(context, ofd, length, callback) {
|
|
var fileNode;
|
|
|
|
function read_file_data (error, node) {
|
|
if (error) {
|
|
callback(error);
|
|
} else if(node.mode == MODE_DIRECTORY ) {
|
|
callback(new Errors.EISDIR());
|
|
} else{
|
|
fileNode = node;
|
|
context.getBuffer(fileNode.data, truncate_file_data);
|
|
}
|
|
}
|
|
|
|
function truncate_file_data(error, fileData) {
|
|
if (error) {
|
|
callback(error);
|
|
} else {
|
|
var data;
|
|
if(!fileData) {
|
|
return callback(new Errors.EIO('Expected Buffer'));
|
|
}
|
|
if(fileData) {
|
|
data = fileData.slice(0, length);
|
|
} else {
|
|
data = new Buffer(length);
|
|
data.fill(0);
|
|
}
|
|
context.putBuffer(fileNode.data, data, update_file_node);
|
|
}
|
|
}
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var now = Date.now();
|
|
update_node_times(context, ofd.path, fileNode, { mtime: now, ctime: now }, callback);
|
|
}
|
|
}
|
|
|
|
function update_file_node (error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
fileNode.size = length;
|
|
fileNode.version += 1;
|
|
context.putObject(fileNode.id, fileNode, update_time);
|
|
}
|
|
}
|
|
|
|
if(length < 0) {
|
|
callback(new Errors.EINVAL('length cannot be negative'));
|
|
} else {
|
|
context.getObject(ofd.id, read_file_data);
|
|
}
|
|
}
|
|
|
|
function utimes_file(context, path, atime, mtime, callback) {
|
|
path = normalize(path);
|
|
|
|
function update_times(error, node) {
|
|
if (error) {
|
|
callback(error);
|
|
} else {
|
|
update_node_times(context, path, node, { atime: atime, ctime: mtime, mtime: mtime }, callback);
|
|
}
|
|
}
|
|
|
|
if (typeof atime != 'number' || typeof mtime != 'number') {
|
|
callback(new Errors.EINVAL('atime and mtime must be number', path));
|
|
}
|
|
else if (atime < 0 || mtime < 0) {
|
|
callback(new Errors.EINVAL('atime and mtime must be positive integers', path));
|
|
}
|
|
else {
|
|
find_node(context, path, update_times);
|
|
}
|
|
}
|
|
|
|
function futimes_file(context, ofd, atime, mtime, callback) {
|
|
|
|
function update_times (error, node) {
|
|
if (error) {
|
|
callback(error);
|
|
} else {
|
|
update_node_times(context, ofd.path, node, { atime: atime, ctime: mtime, mtime: mtime }, callback);
|
|
}
|
|
}
|
|
|
|
if (typeof atime != 'number' || typeof mtime != 'number') {
|
|
callback(new Errors.EINVAL('atime and mtime must be a number'));
|
|
}
|
|
else if (atime < 0 || mtime < 0) {
|
|
callback(new Errors.EINVAL('atime and mtime must be positive integers'));
|
|
}
|
|
else {
|
|
context.getObject(ofd.id, update_times);
|
|
}
|
|
}
|
|
|
|
function setxattr_file(context, path, name, value, flag, callback) {
|
|
path = normalize(path);
|
|
|
|
if (typeof name != 'string') {
|
|
callback(new Errors.EINVAL('attribute name must be a string', path));
|
|
}
|
|
else if (!name) {
|
|
callback(new Errors.EINVAL('attribute name cannot be an empty string', path));
|
|
}
|
|
else if (flag !== null &&
|
|
flag !== XATTR_CREATE && flag !== XATTR_REPLACE) {
|
|
callback(new Errors.EINVAL('invalid flag, must be null, XATTR_CREATE or XATTR_REPLACE', path));
|
|
}
|
|
else {
|
|
set_extended_attribute(context, path, name, value, flag, callback);
|
|
}
|
|
}
|
|
|
|
function fsetxattr_file (context, ofd, name, value, flag, callback) {
|
|
if (typeof name != 'string') {
|
|
callback(new Errors.EINVAL('attribute name must be a string'));
|
|
}
|
|
else if (!name) {
|
|
callback(new Errors.EINVAL('attribute name cannot be an empty string'));
|
|
}
|
|
else if (flag !== null &&
|
|
flag !== XATTR_CREATE && flag !== XATTR_REPLACE) {
|
|
callback(new Errors.EINVAL('invalid flag, must be null, XATTR_CREATE or XATTR_REPLACE'));
|
|
}
|
|
else {
|
|
set_extended_attribute(context, ofd, name, value, flag, callback);
|
|
}
|
|
}
|
|
|
|
function getxattr_file (context, path, name, callback) {
|
|
path = normalize(path);
|
|
|
|
function get_xattr(error, node) {
|
|
var xattr = (node ? node.xattrs[name] : null);
|
|
|
|
if (error) {
|
|
callback (error);
|
|
}
|
|
else if (!node.xattrs.hasOwnProperty(name)) {
|
|
callback(new Errors.ENOATTR(null, path));
|
|
}
|
|
else {
|
|
callback(null, node.xattrs[name]);
|
|
}
|
|
}
|
|
|
|
if (typeof name != 'string') {
|
|
callback(new Errors.EINVAL('attribute name must be a string', path));
|
|
}
|
|
else if (!name) {
|
|
callback(new Errors.EINVAL('attribute name cannot be an empty string', path));
|
|
}
|
|
else {
|
|
find_node(context, path, get_xattr);
|
|
}
|
|
}
|
|
|
|
function fgetxattr_file (context, ofd, name, callback) {
|
|
|
|
function get_xattr (error, node) {
|
|
var xattr = (node ? node.xattrs[name] : null);
|
|
|
|
if (error) {
|
|
callback(error);
|
|
}
|
|
else if (!node.xattrs.hasOwnProperty(name)) {
|
|
callback(new Errors.ENOATTR());
|
|
}
|
|
else {
|
|
callback(null, node.xattrs[name]);
|
|
}
|
|
}
|
|
|
|
if (typeof name != 'string') {
|
|
callback(new Errors.EINVAL());
|
|
}
|
|
else if (!name) {
|
|
callback(new Errors.EINVAL('attribute name cannot be an empty string'));
|
|
}
|
|
else {
|
|
context.getObject(ofd.id, get_xattr);
|
|
}
|
|
}
|
|
|
|
function removexattr_file (context, path, name, callback) {
|
|
path = normalize(path);
|
|
|
|
function remove_xattr (error, node) {
|
|
var xattr = (node ? node.xattrs : null);
|
|
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
update_node_times(context, path, node, { ctime: Date.now() }, callback);
|
|
}
|
|
}
|
|
|
|
if (error) {
|
|
callback(error);
|
|
}
|
|
else if (!xattr.hasOwnProperty(name)) {
|
|
callback(new Errors.ENOATTR(null, path));
|
|
}
|
|
else {
|
|
delete node.xattrs[name];
|
|
context.putObject(node.id, node, update_time);
|
|
}
|
|
}
|
|
|
|
if (typeof name != 'string') {
|
|
callback(new Errors.EINVAL('attribute name must be a string', path));
|
|
}
|
|
else if (!name) {
|
|
callback(new Errors.EINVAL('attribute name cannot be an empty string', path));
|
|
}
|
|
else {
|
|
find_node(context, path, remove_xattr);
|
|
}
|
|
}
|
|
|
|
function fremovexattr_file (context, ofd, name, callback) {
|
|
|
|
function remove_xattr (error, node) {
|
|
function update_time(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
update_node_times(context, ofd.path, node, { ctime: Date.now() }, callback);
|
|
}
|
|
}
|
|
|
|
if (error) {
|
|
callback(error);
|
|
}
|
|
else if (!node.xattrs.hasOwnProperty(name)) {
|
|
callback(new Errors.ENOATTR());
|
|
}
|
|
else {
|
|
delete node.xattrs[name];
|
|
context.putObject(node.id, node, update_time);
|
|
}
|
|
}
|
|
|
|
if (typeof name != 'string') {
|
|
callback(new Errors.EINVAL('attribute name must be a string'));
|
|
}
|
|
else if (!name) {
|
|
callback(new Errors.EINVAL('attribute name cannot be an empty string'));
|
|
}
|
|
else {
|
|
context.getObject(ofd.id, remove_xattr);
|
|
}
|
|
}
|
|
|
|
function validate_flags(flags) {
|
|
if(!_(O_FLAGS).has(flags)) {
|
|
return null;
|
|
}
|
|
return O_FLAGS[flags];
|
|
}
|
|
|
|
function validate_file_options(options, enc, fileMode){
|
|
if(!options) {
|
|
options = { encoding: enc, flag: fileMode };
|
|
} else if(typeof options === "function") {
|
|
options = { encoding: enc, flag: fileMode };
|
|
} else if(typeof options === "string") {
|
|
options = { encoding: options, flag: fileMode };
|
|
}
|
|
return options;
|
|
}
|
|
|
|
function pathCheck(path, callback) {
|
|
var err;
|
|
|
|
if(!path) {
|
|
err = new Errors.EINVAL('Path must be a string', path);
|
|
} else if(isNullPath(path)) {
|
|
err = new Errors.EINVAL('Path must be a string without null bytes.', path);
|
|
} else if(!isAbsolutePath(path)) {
|
|
err = new Errors.EINVAL('Path must be absolute.', path);
|
|
}
|
|
|
|
if(err) {
|
|
callback(err);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
function open(fs, context, path, flags, mode, callback) {
|
|
// NOTE: we support the same signature as node with a `mode` arg,
|
|
// but ignore it.
|
|
callback = arguments[arguments.length - 1];
|
|
if(!pathCheck(path, callback)) return;
|
|
|
|
function check_result(error, fileNode) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var position;
|
|
if(_(flags).contains(O_APPEND)) {
|
|
position = fileNode.size;
|
|
} else {
|
|
position = 0;
|
|
}
|
|
var openFileDescription = new OpenFileDescription(path, fileNode.id, flags, position);
|
|
var fd = fs.allocDescriptor(openFileDescription);
|
|
callback(null, fd);
|
|
}
|
|
}
|
|
|
|
flags = validate_flags(flags);
|
|
if(!flags) {
|
|
callback(new Errors.EINVAL('flags is not valid'), path);
|
|
}
|
|
|
|
open_file(context, path, flags, check_result);
|
|
}
|
|
|
|
function close(fs, context, fd, callback) {
|
|
if(!_(fs.openFiles).has(fd)) {
|
|
callback(new Errors.EBADF());
|
|
} else {
|
|
fs.releaseDescriptor(fd);
|
|
callback(null);
|
|
}
|
|
}
|
|
|
|
function mknod(fs, context, path, mode, callback) {
|
|
if(!pathCheck(path, callback)) return;
|
|
make_node(context, path, mode, callback);
|
|
}
|
|
|
|
function mkdir(fs, context, path, mode, callback) {
|
|
// NOTE: we support passing a mode arg, but we ignore it internally for now.
|
|
callback = arguments[arguments.length - 1];
|
|
if(!pathCheck(path, callback)) return;
|
|
make_directory(context, path, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function rmdir(fs, context, path, callback) {
|
|
if(!pathCheck(path, callback)) return;
|
|
remove_directory(context, path, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function stat(fs, context, path, callback) {
|
|
if(!pathCheck(path, callback)) return;
|
|
|
|
function check_result(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var stats = new Stats(result, fs.name);
|
|
callback(null, stats);
|
|
}
|
|
}
|
|
|
|
stat_file(context, path, check_result);
|
|
}
|
|
|
|
function fstat(fs, context, fd, callback) {
|
|
function check_result(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var stats = new Stats(result, fs.name);
|
|
callback(null, stats);
|
|
}
|
|
}
|
|
|
|
var ofd = fs.openFiles[fd];
|
|
if(!ofd) {
|
|
callback(new Errors.EBADF());
|
|
} else {
|
|
fstat_file(context, ofd, check_result);
|
|
}
|
|
}
|
|
|
|
function link(fs, context, oldpath, newpath, callback) {
|
|
if(!pathCheck(oldpath, callback)) return;
|
|
if(!pathCheck(newpath, callback)) return;
|
|
link_node(context, oldpath, newpath, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function unlink(fs, context, path, callback) {
|
|
if(!pathCheck(path, callback)) return;
|
|
unlink_node(context, path, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function read(fs, context, fd, buffer, offset, length, position, callback) {
|
|
// Follow how node.js does this
|
|
function wrapped_cb(err, bytesRead) {
|
|
// Retain a reference to buffer so that it can't be GC'ed too soon.
|
|
callback(err, bytesRead || 0, buffer);
|
|
}
|
|
|
|
offset = (undefined === offset) ? 0 : offset;
|
|
length = (undefined === length) ? buffer.length - offset : length;
|
|
callback = arguments[arguments.length - 1];
|
|
|
|
var ofd = fs.openFiles[fd];
|
|
if(!ofd) {
|
|
callback(new Errors.EBADF());
|
|
} else if(!_(ofd.flags).contains(O_READ)) {
|
|
callback(new Errors.EBADF('descriptor does not permit reading'));
|
|
} else {
|
|
read_data(context, ofd, buffer, offset, length, position, standard_check_result_cb(wrapped_cb));
|
|
}
|
|
}
|
|
|
|
function readFile(fs, context, path, options, callback) {
|
|
callback = arguments[arguments.length - 1];
|
|
options = validate_file_options(options, null, 'r');
|
|
|
|
if(!pathCheck(path, callback)) return;
|
|
|
|
var flags = validate_flags(options.flag || 'r');
|
|
if(!flags) {
|
|
return callback(new Errors.EINVAL('flags is not valid', path));
|
|
}
|
|
|
|
open_file(context, path, flags, function(err, fileNode) {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
var ofd = new OpenFileDescription(path, fileNode.id, flags, 0);
|
|
var fd = fs.allocDescriptor(ofd);
|
|
|
|
function cleanup() {
|
|
fs.releaseDescriptor(fd);
|
|
}
|
|
|
|
fstat_file(context, ofd, function(err, fstatResult) {
|
|
if(err) {
|
|
cleanup();
|
|
return callback(err);
|
|
}
|
|
|
|
var stats = new Stats(fstatResult, fs.name);
|
|
|
|
if(stats.isDirectory()) {
|
|
cleanup();
|
|
return callback(new Errors.EISDIR('illegal operation on directory', path));
|
|
}
|
|
|
|
var size = stats.size;
|
|
var buffer = new Buffer(size);
|
|
buffer.fill(0);
|
|
|
|
read_data(context, ofd, buffer, 0, size, 0, function(err, nbytes) {
|
|
cleanup();
|
|
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
|
|
var data;
|
|
if(options.encoding === 'utf8') {
|
|
data = Encoding.decode(buffer);
|
|
} else {
|
|
data = buffer;
|
|
}
|
|
callback(null, data);
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
function write(fs, context, fd, buffer, offset, length, position, callback) {
|
|
callback = arguments[arguments.length - 1];
|
|
offset = (undefined === offset) ? 0 : offset;
|
|
length = (undefined === length) ? buffer.length - offset : length;
|
|
|
|
var ofd = fs.openFiles[fd];
|
|
if(!ofd) {
|
|
callback(new Errors.EBADF());
|
|
} else if(!_(ofd.flags).contains(O_WRITE)) {
|
|
callback(new Errors.EBADF('descriptor does not permit writing'));
|
|
} else if(buffer.length - offset < length) {
|
|
callback(new Errors.EIO('intput buffer is too small'));
|
|
} else {
|
|
write_data(context, ofd, buffer, offset, length, position, standard_check_result_cb(callback));
|
|
}
|
|
}
|
|
|
|
function writeFile(fs, context, path, data, options, callback) {
|
|
callback = arguments[arguments.length - 1];
|
|
options = validate_file_options(options, 'utf8', 'w');
|
|
|
|
if(!pathCheck(path, callback)) return;
|
|
|
|
var flags = validate_flags(options.flag || 'w');
|
|
if(!flags) {
|
|
return callback(new Errors.EINVAL('flags is not valid', path));
|
|
}
|
|
|
|
data = data || '';
|
|
if(typeof data === "number") {
|
|
data = '' + data;
|
|
}
|
|
if(typeof data === "string" && options.encoding === 'utf8') {
|
|
data = Encoding.encode(data);
|
|
}
|
|
|
|
open_file(context, path, flags, function(err, fileNode) {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
var ofd = new OpenFileDescription(path, fileNode.id, flags, 0);
|
|
var fd = fs.allocDescriptor(ofd);
|
|
|
|
replace_data(context, ofd, data, 0, data.length, function(err, nbytes) {
|
|
fs.releaseDescriptor(fd);
|
|
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
callback(null);
|
|
});
|
|
});
|
|
}
|
|
|
|
function appendFile(fs, context, path, data, options, callback) {
|
|
callback = arguments[arguments.length - 1];
|
|
options = validate_file_options(options, 'utf8', 'a');
|
|
|
|
if(!pathCheck(path, callback)) return;
|
|
|
|
var flags = validate_flags(options.flag || 'a');
|
|
if(!flags) {
|
|
return callback(new Errors.EINVAL('flags is not valid', path));
|
|
}
|
|
|
|
data = data || '';
|
|
if(typeof data === "number") {
|
|
data = '' + data;
|
|
}
|
|
if(typeof data === "string" && options.encoding === 'utf8') {
|
|
data = Encoding.encode(data);
|
|
}
|
|
|
|
open_file(context, path, flags, function(err, fileNode) {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
var ofd = new OpenFileDescription(path, fileNode.id, flags, fileNode.size);
|
|
var fd = fs.allocDescriptor(ofd);
|
|
|
|
write_data(context, ofd, data, 0, data.length, ofd.position, function(err, nbytes) {
|
|
fs.releaseDescriptor(fd);
|
|
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
callback(null);
|
|
});
|
|
});
|
|
}
|
|
|
|
function exists(fs, context, path, callback) {
|
|
function cb(err, stats) {
|
|
callback(err ? false : true);
|
|
}
|
|
stat(fs, context, path, cb);
|
|
}
|
|
|
|
function getxattr(fs, context, path, name, callback) {
|
|
if (!pathCheck(path, callback)) return;
|
|
getxattr_file(context, path, name, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function fgetxattr(fs, context, fd, name, callback) {
|
|
var ofd = fs.openFiles[fd];
|
|
if (!ofd) {
|
|
callback(new Errors.EBADF());
|
|
}
|
|
else {
|
|
fgetxattr_file(context, ofd, name, standard_check_result_cb(callback));
|
|
}
|
|
}
|
|
|
|
function setxattr(fs, context, path, name, value, flag, callback) {
|
|
if(typeof flag === 'function') {
|
|
callback = flag;
|
|
flag = null;
|
|
}
|
|
|
|
if (!pathCheck(path, callback)) return;
|
|
setxattr_file(context, path, name, value, flag, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function fsetxattr(fs, context, fd, name, value, flag, callback) {
|
|
if(typeof flag === 'function') {
|
|
callback = flag;
|
|
flag = null;
|
|
}
|
|
|
|
var ofd = fs.openFiles[fd];
|
|
if (!ofd) {
|
|
callback(new Errors.EBADF());
|
|
}
|
|
else if (!_(ofd.flags).contains(O_WRITE)) {
|
|
callback(new Errors.EBADF('descriptor does not permit writing'));
|
|
}
|
|
else {
|
|
fsetxattr_file(context, ofd, name, value, flag, standard_check_result_cb(callback));
|
|
}
|
|
}
|
|
|
|
function removexattr(fs, context, path, name, callback) {
|
|
if (!pathCheck(path, callback)) return;
|
|
removexattr_file(context, path, name, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function fremovexattr(fs, context, fd, name, callback) {
|
|
var ofd = fs.openFiles[fd];
|
|
if (!ofd) {
|
|
callback(new Errors.EBADF());
|
|
}
|
|
else if (!_(ofd.flags).contains(O_WRITE)) {
|
|
callback(new Errors.EBADF('descriptor does not permit writing'));
|
|
}
|
|
else {
|
|
fremovexattr_file(context, ofd, name, standard_check_result_cb(callback));
|
|
}
|
|
}
|
|
|
|
function lseek(fs, context, fd, offset, whence, callback) {
|
|
function update_descriptor_position(error, stats) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
if(stats.size + offset < 0) {
|
|
callback(new Errors.EINVAL('resulting file offset would be negative'));
|
|
} else {
|
|
ofd.position = stats.size + offset;
|
|
callback(null, ofd.position);
|
|
}
|
|
}
|
|
}
|
|
|
|
var ofd = fs.openFiles[fd];
|
|
if(!ofd) {
|
|
callback(new Errors.EBADF());
|
|
}
|
|
|
|
if('SET' === whence) {
|
|
if(offset < 0) {
|
|
callback(new Errors.EINVAL('resulting file offset would be negative'));
|
|
} else {
|
|
ofd.position = offset;
|
|
callback(null, ofd.position);
|
|
}
|
|
} else if('CUR' === whence) {
|
|
if(ofd.position + offset < 0) {
|
|
callback(new Errors.EINVAL('resulting file offset would be negative'));
|
|
} else {
|
|
ofd.position += offset;
|
|
callback(null, ofd.position);
|
|
}
|
|
} else if('END' === whence) {
|
|
fstat_file(context, ofd, update_descriptor_position);
|
|
} else {
|
|
callback(new Errors.EINVAL('whence argument is not a proper value'));
|
|
}
|
|
}
|
|
|
|
function readdir(fs, context, path, callback) {
|
|
if(!pathCheck(path, callback)) return;
|
|
read_directory(context, path, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function utimes(fs, context, path, atime, mtime, callback) {
|
|
if(!pathCheck(path, callback)) return;
|
|
|
|
var currentTime = Date.now();
|
|
atime = (atime) ? atime : currentTime;
|
|
mtime = (mtime) ? mtime : currentTime;
|
|
|
|
utimes_file(context, path, atime, mtime, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function futimes(fs, context, fd, atime, mtime, callback) {
|
|
var currentTime = Date.now();
|
|
atime = (atime) ? atime : currentTime;
|
|
mtime = (mtime) ? mtime : currentTime;
|
|
|
|
var ofd = fs.openFiles[fd];
|
|
if(!ofd) {
|
|
callback(new Errors.EBADF());
|
|
} else if(!_(ofd.flags).contains(O_WRITE)) {
|
|
callback(new Errors.EBADF('descriptor does not permit writing'));
|
|
} else {
|
|
futimes_file(context, ofd, atime, mtime, standard_check_result_cb(callback));
|
|
}
|
|
}
|
|
|
|
function rename(fs, context, oldpath, newpath, callback) {
|
|
if(!pathCheck(oldpath, callback)) return;
|
|
if(!pathCheck(newpath, callback)) return;
|
|
|
|
function unlink_old_node(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
unlink_node(context, oldpath, standard_check_result_cb(callback));
|
|
}
|
|
}
|
|
|
|
link_node(context, oldpath, newpath, unlink_old_node);
|
|
}
|
|
|
|
function symlink(fs, context, srcpath, dstpath, type, callback) {
|
|
// NOTE: we support passing the `type` arg, but ignore it.
|
|
callback = arguments[arguments.length - 1];
|
|
if(!pathCheck(srcpath, callback)) return;
|
|
if(!pathCheck(dstpath, callback)) return;
|
|
make_symbolic_link(context, srcpath, dstpath, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function readlink(fs, context, path, callback) {
|
|
if(!pathCheck(path, callback)) return;
|
|
read_link(context, path, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function lstat(fs, context, path, callback) {
|
|
if(!pathCheck(path, callback)) return;
|
|
|
|
function check_result(error, result) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
var stats = new Stats(result, fs.name);
|
|
callback(null, stats);
|
|
}
|
|
}
|
|
|
|
lstat_file(context, path, check_result);
|
|
}
|
|
|
|
function truncate(fs, context, path, length, callback) {
|
|
// NOTE: length is optional
|
|
callback = arguments[arguments.length - 1];
|
|
length = length || 0;
|
|
|
|
if(!pathCheck(path, callback)) return;
|
|
truncate_file(context, path, length, standard_check_result_cb(callback));
|
|
}
|
|
|
|
function ftruncate(fs, context, fd, length, callback) {
|
|
// NOTE: length is optional
|
|
callback = arguments[arguments.length - 1];
|
|
length = length || 0;
|
|
|
|
var ofd = fs.openFiles[fd];
|
|
if(!ofd) {
|
|
callback(new Errors.EBADF());
|
|
} else if(!_(ofd.flags).contains(O_WRITE)) {
|
|
callback(new Errors.EBADF('descriptor does not permit writing'));
|
|
} else {
|
|
ftruncate_file(context, ofd, length, standard_check_result_cb(callback));
|
|
}
|
|
}
|
|
|
|
module.exports = {
|
|
ensureRootDirectory: ensure_root_directory,
|
|
open: open,
|
|
close: close,
|
|
mknod: mknod,
|
|
mkdir: mkdir,
|
|
rmdir: rmdir,
|
|
unlink: unlink,
|
|
stat: stat,
|
|
fstat: fstat,
|
|
link: link,
|
|
read: read,
|
|
readFile: readFile,
|
|
write: write,
|
|
writeFile: writeFile,
|
|
appendFile: appendFile,
|
|
exists: exists,
|
|
getxattr: getxattr,
|
|
fgetxattr: fgetxattr,
|
|
setxattr: setxattr,
|
|
fsetxattr: fsetxattr,
|
|
removexattr: removexattr,
|
|
fremovexattr: fremovexattr,
|
|
lseek: lseek,
|
|
readdir: readdir,
|
|
utimes: utimes,
|
|
futimes: futimes,
|
|
rename: rename,
|
|
symlink: symlink,
|
|
readlink: readlink,
|
|
lstat: lstat,
|
|
truncate: truncate,
|
|
ftruncate: ftruncate
|
|
};
|
|
|
|
},{"../../lib/nodash.js":4,"../buffer.js":10,"../constants.js":11,"../directory-entry.js":12,"../encoding.js":13,"../errors.js":14,"../node.js":19,"../open-file-description.js":20,"../path.js":21,"../stats.js":29,"../super-node.js":30}],16:[function(_dereq_,module,exports){
|
|
var _ = _dereq_('../../lib/nodash.js');
|
|
|
|
var isNullPath = _dereq_('../path.js').isNull;
|
|
var nop = _dereq_('../shared.js').nop;
|
|
|
|
var Constants = _dereq_('../constants.js');
|
|
var FILE_SYSTEM_NAME = Constants.FILE_SYSTEM_NAME;
|
|
var FS_FORMAT = Constants.FS_FORMAT;
|
|
var FS_READY = Constants.FS_READY;
|
|
var FS_PENDING = Constants.FS_PENDING;
|
|
var FS_ERROR = Constants.FS_ERROR;
|
|
var FS_NODUPEIDCHECK = Constants.FS_NODUPEIDCHECK;
|
|
|
|
var providers = _dereq_('../providers/index.js');
|
|
|
|
var Shell = _dereq_('../shell/shell.js');
|
|
var Intercom = _dereq_('../../lib/intercom.js');
|
|
var FSWatcher = _dereq_('../fs-watcher.js');
|
|
var Errors = _dereq_('../errors.js');
|
|
var defaultGuidFn = _dereq_('../shared.js').guid;
|
|
|
|
var STDIN = Constants.STDIN;
|
|
var STDOUT = Constants.STDOUT;
|
|
var STDERR = Constants.STDERR;
|
|
var FIRST_DESCRIPTOR = Constants.FIRST_DESCRIPTOR;
|
|
|
|
// The core fs operations live on impl
|
|
var impl = _dereq_('./implementation.js');
|
|
|
|
// node.js supports a calling pattern that leaves off a callback.
|
|
function maybeCallback(callback) {
|
|
if(typeof callback === "function") {
|
|
return callback;
|
|
}
|
|
return function(err) {
|
|
if(err) {
|
|
throw err;
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* FileSystem
|
|
*
|
|
* A FileSystem takes an `options` object, which can specify a number of,
|
|
* options. All options are optional, and include:
|
|
*
|
|
* name: the name of the file system, defaults to "local"
|
|
*
|
|
* flags: one or more flags to use when creating/opening the file system.
|
|
* For example: "FORMAT" will cause the file system to be formatted.
|
|
* No explicit flags are set by default.
|
|
*
|
|
* provider: an explicit storage provider to use for the file
|
|
* system's database context provider. A number of context
|
|
* providers are included (see /src/providers), and users
|
|
* can write one of their own and pass it in to be used.
|
|
* By default an IndexedDB provider is used.
|
|
*
|
|
* guid: a function for generating unique IDs for nodes in the filesystem.
|
|
* Use this to override the built-in UUID generation. (Used mainly for tests).
|
|
*
|
|
* callback: a callback function to be executed when the file system becomes
|
|
* ready for use. Depending on the context provider used, this might
|
|
* be right away, or could take some time. The callback should expect
|
|
* an `error` argument, which will be null if everything worked. Also
|
|
* users should check the file system's `readyState` and `error`
|
|
* properties to make sure it is usable.
|
|
*/
|
|
function FileSystem(options, callback) {
|
|
options = options || {};
|
|
callback = callback || nop;
|
|
|
|
var flags = options.flags;
|
|
var guid = options.guid ? options.guid : defaultGuidFn;
|
|
var provider = options.provider || new providers.Default(options.name || FILE_SYSTEM_NAME);
|
|
// If we're given a provider, match its name unless we get an explicit name
|
|
var name = options.name || provider.name;
|
|
var forceFormatting = _(flags).contains(FS_FORMAT);
|
|
|
|
var fs = this;
|
|
fs.readyState = FS_PENDING;
|
|
fs.name = name;
|
|
fs.error = null;
|
|
|
|
fs.stdin = STDIN;
|
|
fs.stdout = STDOUT;
|
|
fs.stderr = STDERR;
|
|
|
|
// Safely expose the list of open files and file
|
|
// descriptor management functions
|
|
var openFiles = {};
|
|
var nextDescriptor = FIRST_DESCRIPTOR;
|
|
Object.defineProperty(this, "openFiles", {
|
|
get: function() { return openFiles; }
|
|
});
|
|
this.allocDescriptor = function(openFileDescription) {
|
|
var fd = nextDescriptor ++;
|
|
openFiles[fd] = openFileDescription;
|
|
return fd;
|
|
};
|
|
this.releaseDescriptor = function(fd) {
|
|
delete openFiles[fd];
|
|
};
|
|
|
|
// Safely expose the operation queue
|
|
var queue = [];
|
|
this.queueOrRun = function(operation) {
|
|
var error;
|
|
|
|
if(FS_READY == fs.readyState) {
|
|
operation.call(fs);
|
|
} else if(FS_ERROR == fs.readyState) {
|
|
error = new Errors.EFILESYSTEMERROR('unknown error');
|
|
} else {
|
|
queue.push(operation);
|
|
}
|
|
|
|
return error;
|
|
};
|
|
function runQueued() {
|
|
queue.forEach(function(operation) {
|
|
operation.call(this);
|
|
}.bind(fs));
|
|
queue = null;
|
|
}
|
|
|
|
// We support the optional `options` arg from node, but ignore it
|
|
this.watch = function(filename, options, listener) {
|
|
if(isNullPath(filename)) {
|
|
throw new Error('Path must be a string without null bytes.');
|
|
}
|
|
if(typeof options === 'function') {
|
|
listener = options;
|
|
options = {};
|
|
}
|
|
options = options || {};
|
|
listener = listener || nop;
|
|
|
|
var watcher = new FSWatcher();
|
|
watcher.start(filename, false, options.recursive);
|
|
watcher.on('change', listener);
|
|
|
|
return watcher;
|
|
};
|
|
|
|
// Deal with various approaches to node ID creation
|
|
function wrappedGuidFn(context) {
|
|
return function(callback) {
|
|
// Skip the duplicate ID check if asked to
|
|
if(_(flags).contains(FS_NODUPEIDCHECK)) {
|
|
callback(null, guid());
|
|
return;
|
|
}
|
|
|
|
// Otherwise (default) make sure this id is unused first
|
|
function guidWithCheck(callback) {
|
|
var id = guid();
|
|
context.getObject(id, function(err, value) {
|
|
if(err) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
// If this id is unused, use it, otherwise find another
|
|
if(!value) {
|
|
callback(null, id);
|
|
} else {
|
|
guidWithCheck(callback);
|
|
}
|
|
});
|
|
}
|
|
guidWithCheck(callback);
|
|
};
|
|
}
|
|
|
|
// Let other instances (in this or other windows) know about
|
|
// any changes to this fs instance.
|
|
function broadcastChanges(changes) {
|
|
if(!changes.length) {
|
|
return;
|
|
}
|
|
var intercom = Intercom.getInstance();
|
|
changes.forEach(function(change) {
|
|
intercom.emit(change.event, change.path);
|
|
});
|
|
}
|
|
|
|
// Open file system storage provider
|
|
provider.open(function(err) {
|
|
function complete(error) {
|
|
function wrappedContext(methodName) {
|
|
var context = provider[methodName]();
|
|
context.flags = flags;
|
|
context.changes = [];
|
|
context.guid = wrappedGuidFn(context);
|
|
|
|
// When the context is finished, let the fs deal with any change events
|
|
context.close = function() {
|
|
var changes = context.changes;
|
|
broadcastChanges(changes);
|
|
changes.length = 0;
|
|
};
|
|
|
|
return context;
|
|
}
|
|
|
|
// Wrap the provider so we can extend the context with fs flags and
|
|
// an array of changes (e.g., watch event 'change' and 'rename' events
|
|
// for paths updated during the lifetime of the context). From this
|
|
// point forward we won't call open again, so it's safe to drop it.
|
|
fs.provider = {
|
|
openReadWriteContext: function() {
|
|
return wrappedContext('getReadWriteContext');
|
|
},
|
|
openReadOnlyContext: function() {
|
|
return wrappedContext('getReadOnlyContext');
|
|
}
|
|
};
|
|
|
|
if(error) {
|
|
fs.readyState = FS_ERROR;
|
|
} else {
|
|
fs.readyState = FS_READY;
|
|
}
|
|
runQueued();
|
|
callback(error, fs);
|
|
}
|
|
|
|
if(err) {
|
|
return complete(err);
|
|
}
|
|
|
|
var context = provider.getReadWriteContext();
|
|
context.guid = wrappedGuidFn(context);
|
|
|
|
// Mount the filesystem, formatting if necessary
|
|
if(forceFormatting) {
|
|
// Wipe the storage provider, then write root block
|
|
context.clear(function(err) {
|
|
if(err) {
|
|
return complete(err);
|
|
}
|
|
impl.ensureRootDirectory(context, complete);
|
|
});
|
|
} else {
|
|
// Use existing (or create new) root and mount
|
|
impl.ensureRootDirectory(context, complete);
|
|
}
|
|
});
|
|
}
|
|
|
|
// Expose storage providers on FileSystem constructor
|
|
FileSystem.providers = providers;
|
|
|
|
/**
|
|
* Public API for FileSystem
|
|
*/
|
|
[
|
|
'open',
|
|
'close',
|
|
'mknod',
|
|
'mkdir',
|
|
'rmdir',
|
|
'stat',
|
|
'fstat',
|
|
'link',
|
|
'unlink',
|
|
'read',
|
|
'readFile',
|
|
'write',
|
|
'writeFile',
|
|
'appendFile',
|
|
'exists',
|
|
'lseek',
|
|
'readdir',
|
|
'rename',
|
|
'readlink',
|
|
'symlink',
|
|
'lstat',
|
|
'truncate',
|
|
'ftruncate',
|
|
'utimes',
|
|
'futimes',
|
|
'setxattr',
|
|
'getxattr',
|
|
'fsetxattr',
|
|
'fgetxattr',
|
|
'removexattr',
|
|
'fremovexattr'
|
|
].forEach(function(methodName) {
|
|
FileSystem.prototype[methodName] = function() {
|
|
var fs = this;
|
|
var args = Array.prototype.slice.call(arguments, 0);
|
|
var lastArgIndex = args.length - 1;
|
|
|
|
// We may or may not get a callback, and since node.js supports
|
|
// fire-and-forget style fs operations, we have to dance a bit here.
|
|
var missingCallback = typeof args[lastArgIndex] !== 'function';
|
|
var callback = maybeCallback(args[lastArgIndex]);
|
|
|
|
var error = fs.queueOrRun(function() {
|
|
var context = fs.provider.openReadWriteContext();
|
|
|
|
// Fail early if the filesystem is in an error state (e.g.,
|
|
// provider failed to open.
|
|
if(FS_ERROR === fs.readyState) {
|
|
var err = new Errors.EFILESYSTEMERROR('filesystem unavailable, operation canceled');
|
|
return callback.call(fs, err);
|
|
}
|
|
|
|
// Wrap the callback so we can explicitly close the context
|
|
function complete() {
|
|
context.close();
|
|
callback.apply(fs, arguments);
|
|
}
|
|
|
|
// Either add or replace the callback with our wrapper complete()
|
|
if(missingCallback) {
|
|
args.push(complete);
|
|
} else {
|
|
args[lastArgIndex] = complete;
|
|
}
|
|
|
|
// Forward this call to the impl's version, using the following
|
|
// call signature, with complete() as the callback/last-arg now:
|
|
// fn(fs, context, arg0, arg1, ... , complete);
|
|
var fnArgs = [fs, context].concat(args);
|
|
impl[methodName].apply(null, fnArgs);
|
|
});
|
|
if(error) {
|
|
callback(error);
|
|
}
|
|
};
|
|
});
|
|
|
|
FileSystem.prototype.Shell = function(options) {
|
|
return new Shell(this, options);
|
|
};
|
|
|
|
module.exports = FileSystem;
|
|
|
|
},{"../../lib/intercom.js":3,"../../lib/nodash.js":4,"../constants.js":11,"../errors.js":14,"../fs-watcher.js":17,"../path.js":21,"../providers/index.js":22,"../shared.js":26,"../shell/shell.js":28,"./implementation.js":15}],17:[function(_dereq_,module,exports){
|
|
var EventEmitter = _dereq_('../lib/eventemitter.js');
|
|
var Path = _dereq_('./path.js');
|
|
var Intercom = _dereq_('../lib/intercom.js');
|
|
|
|
/**
|
|
* FSWatcher based on node.js' FSWatcher
|
|
* see https://github.com/joyent/node/blob/master/lib/fs.js
|
|
*/
|
|
function FSWatcher() {
|
|
EventEmitter.call(this);
|
|
var self = this;
|
|
var recursive = false;
|
|
var recursivePathPrefix;
|
|
var filename;
|
|
|
|
function onchange(path) {
|
|
// Watch for exact filename, or parent path when recursive is true.
|
|
if(filename === path || (recursive && path.indexOf(recursivePathPrefix) === 0)) {
|
|
self.trigger('change', 'change', path);
|
|
}
|
|
}
|
|
|
|
// We support, but ignore the second arg, which node.js uses.
|
|
self.start = function(filename_, persistent_, recursive_) {
|
|
// Bail if we've already started (and therefore have a filename);
|
|
if(filename) {
|
|
return;
|
|
}
|
|
|
|
if(Path.isNull(filename_)) {
|
|
throw new Error('Path must be a string without null bytes.');
|
|
}
|
|
|
|
// TODO: get realpath for symlinks on filename...
|
|
|
|
// Filer's Path.normalize strips trailing slashes, which we use here.
|
|
// See https://github.com/js-platform/filer/issues/105
|
|
filename = Path.normalize(filename_);
|
|
|
|
// Whether to watch beneath this path or not
|
|
recursive = recursive_ === true;
|
|
// If recursive, construct a path prefix portion for comparisons later
|
|
// (i.e., '/path' becomes '/path/' so we can search within a filename for the
|
|
// prefix). We also take care to allow for '/' on its own.
|
|
if(recursive) {
|
|
recursivePathPrefix = filename === '/' ? '/' : filename + '/';
|
|
}
|
|
|
|
var intercom = Intercom.getInstance();
|
|
intercom.on('change', onchange);
|
|
};
|
|
|
|
self.close = function() {
|
|
var intercom = Intercom.getInstance();
|
|
intercom.off('change', onchange);
|
|
self.removeAllListeners('change');
|
|
};
|
|
}
|
|
FSWatcher.prototype = new EventEmitter();
|
|
FSWatcher.prototype.constructor = FSWatcher;
|
|
|
|
module.exports = FSWatcher;
|
|
|
|
},{"../lib/eventemitter.js":2,"../lib/intercom.js":3,"./path.js":21}],18:[function(_dereq_,module,exports){
|
|
module.exports = {
|
|
FileSystem: _dereq_('./filesystem/interface.js'),
|
|
Buffer: _dereq_('./buffer.js'),
|
|
Path: _dereq_('./path.js'),
|
|
Errors: _dereq_('./errors.js')
|
|
};
|
|
|
|
},{"./buffer.js":10,"./errors.js":14,"./filesystem/interface.js":16,"./path.js":21}],19:[function(_dereq_,module,exports){
|
|
var MODE_FILE = _dereq_('./constants.js').MODE_FILE;
|
|
|
|
function Node(options) {
|
|
var now = Date.now();
|
|
|
|
this.id = options.id;
|
|
this.mode = options.mode || MODE_FILE; // node type (file, directory, etc)
|
|
this.size = options.size || 0; // size (bytes for files, entries for directories)
|
|
this.atime = options.atime || now; // access time (will mirror ctime after creation)
|
|
this.ctime = options.ctime || now; // creation/change time
|
|
this.mtime = options.mtime || now; // modified time
|
|
this.flags = options.flags || []; // file flags
|
|
this.xattrs = options.xattrs || {}; // extended attributes
|
|
this.nlinks = options.nlinks || 0; // links count
|
|
this.version = options.version || 0; // node version
|
|
this.blksize = undefined; // block size
|
|
this.nblocks = 1; // blocks count
|
|
this.data = options.data; // id for data object
|
|
}
|
|
|
|
// Make sure the options object has an id on property,
|
|
// either from caller or one we generate using supplied guid fn.
|
|
function ensureID(options, prop, callback) {
|
|
if(options[prop]) {
|
|
callback(null);
|
|
} else {
|
|
options.guid(function(err, id) {
|
|
options[prop] = id;
|
|
callback(err);
|
|
});
|
|
}
|
|
}
|
|
|
|
Node.create = function(options, callback) {
|
|
// We expect both options.id and options.data to be provided/generated.
|
|
ensureID(options, 'id', function(err) {
|
|
if(err) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
ensureID(options, 'data', function(err) {
|
|
if(err) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
callback(null, new Node(options));
|
|
});
|
|
});
|
|
};
|
|
|
|
module.exports = Node;
|
|
|
|
},{"./constants.js":11}],20:[function(_dereq_,module,exports){
|
|
module.exports = function OpenFileDescription(path, id, flags, position) {
|
|
this.path = path;
|
|
this.id = id;
|
|
this.flags = flags;
|
|
this.position = position;
|
|
};
|
|
|
|
},{}],21:[function(_dereq_,module,exports){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
// Based on https://github.com/joyent/node/blob/41e53e557992a7d552a8e23de035f9463da25c99/lib/path.js
|
|
|
|
// resolves . and .. elements in a path array with directory names there
|
|
// must be no slashes, empty elements, or device names (c:\) in the array
|
|
// (so also no leading and trailing slashes - it does not distinguish
|
|
// relative and absolute paths)
|
|
function normalizeArray(parts, allowAboveRoot) {
|
|
// if the path tries to go above the root, `up` ends up > 0
|
|
var up = 0;
|
|
for (var i = parts.length - 1; i >= 0; i--) {
|
|
var last = parts[i];
|
|
if (last === '.') {
|
|
parts.splice(i, 1);
|
|
} else if (last === '..') {
|
|
parts.splice(i, 1);
|
|
up++;
|
|
} else if (up) {
|
|
parts.splice(i, 1);
|
|
up--;
|
|
}
|
|
}
|
|
|
|
// if the path is allowed to go above the root, restore leading ..s
|
|
if (allowAboveRoot) {
|
|
for (; up--; up) {
|
|
parts.unshift('..');
|
|
}
|
|
}
|
|
|
|
return parts;
|
|
}
|
|
|
|
// Split a filename into [root, dir, basename, ext], unix version
|
|
// 'root' is just a slash, or nothing.
|
|
var splitPathRe =
|
|
/^(\/?)([\s\S]+\/(?!$)|\/)?((?:\.{1,2}$|[\s\S]+?)?(\.[^.\/]*)?)$/;
|
|
var splitPath = function(filename) {
|
|
var result = splitPathRe.exec(filename);
|
|
return [result[1] || '', result[2] || '', result[3] || '', result[4] || ''];
|
|
};
|
|
|
|
// path.resolve([from ...], to)
|
|
function resolve() {
|
|
var resolvedPath = '',
|
|
resolvedAbsolute = false;
|
|
|
|
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
|
|
// XXXidbfs: we don't have process.cwd() so we use '/' as a fallback
|
|
var path = (i >= 0) ? arguments[i] : '/';
|
|
|
|
// Skip empty and invalid entries
|
|
if (typeof path !== 'string' || !path) {
|
|
continue;
|
|
}
|
|
|
|
resolvedPath = path + '/' + resolvedPath;
|
|
resolvedAbsolute = path.charAt(0) === '/';
|
|
}
|
|
|
|
// At this point the path should be resolved to a full absolute path, but
|
|
// handle relative paths to be safe (might happen when process.cwd() fails)
|
|
|
|
// Normalize the path
|
|
resolvedPath = normalizeArray(resolvedPath.split('/').filter(function(p) {
|
|
return !!p;
|
|
}), !resolvedAbsolute).join('/');
|
|
|
|
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
|
|
}
|
|
|
|
// path.normalize(path)
|
|
function normalize(path) {
|
|
var isAbsolute = path.charAt(0) === '/',
|
|
trailingSlash = path.substr(-1) === '/';
|
|
|
|
// Normalize the path
|
|
path = normalizeArray(path.split('/').filter(function(p) {
|
|
return !!p;
|
|
}), !isAbsolute).join('/');
|
|
|
|
if (!path && !isAbsolute) {
|
|
path = '.';
|
|
}
|
|
/*
|
|
if (path && trailingSlash) {
|
|
path += '/';
|
|
}
|
|
*/
|
|
|
|
return (isAbsolute ? '/' : '') + path;
|
|
}
|
|
|
|
function join() {
|
|
var paths = Array.prototype.slice.call(arguments, 0);
|
|
return normalize(paths.filter(function(p, index) {
|
|
return p && typeof p === 'string';
|
|
}).join('/'));
|
|
}
|
|
|
|
// path.relative(from, to)
|
|
function relative(from, to) {
|
|
from = exports.resolve(from).substr(1);
|
|
to = exports.resolve(to).substr(1);
|
|
|
|
function trim(arr) {
|
|
var start = 0;
|
|
for (; start < arr.length; start++) {
|
|
if (arr[start] !== '') break;
|
|
}
|
|
|
|
var end = arr.length - 1;
|
|
for (; end >= 0; end--) {
|
|
if (arr[end] !== '') break;
|
|
}
|
|
|
|
if (start > end) return [];
|
|
return arr.slice(start, end - start + 1);
|
|
}
|
|
|
|
var fromParts = trim(from.split('/'));
|
|
var toParts = trim(to.split('/'));
|
|
|
|
var length = Math.min(fromParts.length, toParts.length);
|
|
var samePartsLength = length;
|
|
for (var i = 0; i < length; i++) {
|
|
if (fromParts[i] !== toParts[i]) {
|
|
samePartsLength = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
var outputParts = [];
|
|
for (var i = samePartsLength; i < fromParts.length; i++) {
|
|
outputParts.push('..');
|
|
}
|
|
|
|
outputParts = outputParts.concat(toParts.slice(samePartsLength));
|
|
|
|
return outputParts.join('/');
|
|
}
|
|
|
|
function dirname(path) {
|
|
var result = splitPath(path),
|
|
root = result[0],
|
|
dir = result[1];
|
|
|
|
if (!root && !dir) {
|
|
// No dirname whatsoever
|
|
return '.';
|
|
}
|
|
|
|
if (dir) {
|
|
// It has a dirname, strip trailing slash
|
|
dir = dir.substr(0, dir.length - 1);
|
|
}
|
|
|
|
return root + dir;
|
|
}
|
|
|
|
function basename(path, ext) {
|
|
var f = splitPath(path)[2];
|
|
// TODO: make this comparison case-insensitive on windows?
|
|
if (ext && f.substr(-1 * ext.length) === ext) {
|
|
f = f.substr(0, f.length - ext.length);
|
|
}
|
|
// XXXidbfs: node.js just does `return f`
|
|
return f === "" ? "/" : f;
|
|
}
|
|
|
|
function extname(path) {
|
|
return splitPath(path)[3];
|
|
}
|
|
|
|
function isAbsolute(path) {
|
|
if(path.charAt(0) === '/') {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function isNull(path) {
|
|
if (('' + path).indexOf('\u0000') !== -1) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// XXXidbfs: we don't support path.exists() or path.existsSync(), which
|
|
// are deprecated, and need a FileSystem instance to work. Use fs.stat().
|
|
|
|
module.exports = {
|
|
normalize: normalize,
|
|
resolve: resolve,
|
|
join: join,
|
|
relative: relative,
|
|
sep: '/',
|
|
delimiter: ':',
|
|
dirname: dirname,
|
|
basename: basename,
|
|
extname: extname,
|
|
isAbsolute: isAbsolute,
|
|
isNull: isNull
|
|
};
|
|
|
|
},{}],22:[function(_dereq_,module,exports){
|
|
var IndexedDB = _dereq_('./indexeddb.js');
|
|
var WebSQL = _dereq_('./websql.js');
|
|
var Memory = _dereq_('./memory.js');
|
|
|
|
module.exports = {
|
|
IndexedDB: IndexedDB,
|
|
WebSQL: WebSQL,
|
|
Memory: Memory,
|
|
|
|
/**
|
|
* Convenience Provider references
|
|
*/
|
|
|
|
// The default provider to use when none is specified
|
|
Default: IndexedDB,
|
|
|
|
// The Fallback provider does automatic fallback checks
|
|
Fallback: (function() {
|
|
if(IndexedDB.isSupported()) {
|
|
return IndexedDB;
|
|
}
|
|
|
|
if(WebSQL.isSupported()) {
|
|
return WebSQL;
|
|
}
|
|
|
|
function NotSupported() {
|
|
throw "[Filer Error] Your browser doesn't support IndexedDB or WebSQL.";
|
|
}
|
|
NotSupported.isSupported = function() {
|
|
return false;
|
|
};
|
|
return NotSupported;
|
|
}())
|
|
};
|
|
|
|
},{"./indexeddb.js":23,"./memory.js":24,"./websql.js":25}],23:[function(_dereq_,module,exports){
|
|
(function (global){
|
|
var FILE_SYSTEM_NAME = _dereq_('../constants.js').FILE_SYSTEM_NAME;
|
|
var FILE_STORE_NAME = _dereq_('../constants.js').FILE_STORE_NAME;
|
|
var IDB_RW = _dereq_('../constants.js').IDB_RW;
|
|
var IDB_RO = _dereq_('../constants.js').IDB_RO;
|
|
var Errors = _dereq_('../errors.js');
|
|
var FilerBuffer = _dereq_('../buffer.js');
|
|
|
|
var indexedDB = global.indexedDB ||
|
|
global.mozIndexedDB ||
|
|
global.webkitIndexedDB ||
|
|
global.msIndexedDB;
|
|
|
|
function IndexedDBContext(db, mode) {
|
|
var transaction = db.transaction(FILE_STORE_NAME, mode);
|
|
this.objectStore = transaction.objectStore(FILE_STORE_NAME);
|
|
}
|
|
|
|
IndexedDBContext.prototype.clear = function(callback) {
|
|
try {
|
|
var request = this.objectStore.clear();
|
|
request.onsuccess = function(event) {
|
|
callback();
|
|
};
|
|
request.onerror = function(error) {
|
|
callback(error);
|
|
};
|
|
} catch(e) {
|
|
callback(e);
|
|
}
|
|
};
|
|
|
|
function _get(objectStore, key, callback) {
|
|
try {
|
|
var request = objectStore.get(key);
|
|
request.onsuccess = function onsuccess(event) {
|
|
var result = event.target.result;
|
|
callback(null, result);
|
|
};
|
|
request.onerror = function onerror(error) {
|
|
callback(error);
|
|
};
|
|
} catch(e) {
|
|
callback(e);
|
|
}
|
|
}
|
|
IndexedDBContext.prototype.getObject = function(key, callback) {
|
|
_get(this.objectStore, key, callback);
|
|
};
|
|
IndexedDBContext.prototype.getBuffer = function(key, callback) {
|
|
_get(this.objectStore, key, function(err, arrayBuffer) {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
callback(null, new FilerBuffer(arrayBuffer));
|
|
});
|
|
};
|
|
|
|
function _put(objectStore, key, value, callback) {
|
|
try {
|
|
var request = objectStore.put(value, key);
|
|
request.onsuccess = function onsuccess(event) {
|
|
var result = event.target.result;
|
|
callback(null, result);
|
|
};
|
|
request.onerror = function onerror(error) {
|
|
callback(error);
|
|
};
|
|
} catch(e) {
|
|
callback(e);
|
|
}
|
|
}
|
|
IndexedDBContext.prototype.putObject = function(key, value, callback) {
|
|
_put(this.objectStore, key, value, callback);
|
|
};
|
|
IndexedDBContext.prototype.putBuffer = function(key, uint8BackedBuffer, callback) {
|
|
_put(this.objectStore, key, uint8BackedBuffer.buffer, callback);
|
|
};
|
|
|
|
IndexedDBContext.prototype.delete = function(key, callback) {
|
|
try {
|
|
var request = this.objectStore.delete(key);
|
|
request.onsuccess = function onsuccess(event) {
|
|
var result = event.target.result;
|
|
callback(null, result);
|
|
};
|
|
request.onerror = function(error) {
|
|
callback(error);
|
|
};
|
|
} catch(e) {
|
|
callback(e);
|
|
}
|
|
};
|
|
|
|
|
|
function IndexedDB(name) {
|
|
this.name = name || FILE_SYSTEM_NAME;
|
|
this.db = null;
|
|
}
|
|
IndexedDB.isSupported = function() {
|
|
return !!indexedDB;
|
|
};
|
|
|
|
IndexedDB.prototype.open = function(callback) {
|
|
var that = this;
|
|
|
|
// Bail if we already have a db open
|
|
if(that.db) {
|
|
return callback();
|
|
}
|
|
|
|
// NOTE: we're not using versioned databases.
|
|
var openRequest = indexedDB.open(that.name);
|
|
|
|
// If the db doesn't exist, we'll create it
|
|
openRequest.onupgradeneeded = function onupgradeneeded(event) {
|
|
var db = event.target.result;
|
|
|
|
if(db.objectStoreNames.contains(FILE_STORE_NAME)) {
|
|
db.deleteObjectStore(FILE_STORE_NAME);
|
|
}
|
|
db.createObjectStore(FILE_STORE_NAME);
|
|
};
|
|
|
|
openRequest.onsuccess = function onsuccess(event) {
|
|
that.db = event.target.result;
|
|
callback();
|
|
};
|
|
openRequest.onerror = function onerror(error) {
|
|
callback(new Errors.EINVAL('IndexedDB cannot be accessed. If private browsing is enabled, disable it.'));
|
|
};
|
|
};
|
|
IndexedDB.prototype.getReadOnlyContext = function() {
|
|
// Due to timing issues in Chrome with readwrite vs. readonly indexeddb transactions
|
|
// always use readwrite so we can make sure pending commits finish before callbacks.
|
|
// See https://github.com/js-platform/filer/issues/128
|
|
return new IndexedDBContext(this.db, IDB_RW);
|
|
};
|
|
IndexedDB.prototype.getReadWriteContext = function() {
|
|
return new IndexedDBContext(this.db, IDB_RW);
|
|
};
|
|
|
|
module.exports = IndexedDB;
|
|
|
|
}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"../buffer.js":10,"../constants.js":11,"../errors.js":14}],24:[function(_dereq_,module,exports){
|
|
var FILE_SYSTEM_NAME = _dereq_('../constants.js').FILE_SYSTEM_NAME;
|
|
// NOTE: prefer setImmediate to nextTick for proper recursion yielding.
|
|
// see https://github.com/js-platform/filer/pull/24
|
|
var asyncCallback = _dereq_('../../lib/async.js').setImmediate;
|
|
|
|
/**
|
|
* Make shared in-memory DBs possible when using the same name.
|
|
*/
|
|
var createDB = (function() {
|
|
var pool = {};
|
|
return function getOrCreate(name) {
|
|
if(!pool.hasOwnProperty(name)) {
|
|
pool[name] = {};
|
|
}
|
|
return pool[name];
|
|
};
|
|
}());
|
|
|
|
function MemoryContext(db, readOnly) {
|
|
this.readOnly = readOnly;
|
|
this.objectStore = db;
|
|
}
|
|
|
|
MemoryContext.prototype.clear = function(callback) {
|
|
if(this.readOnly) {
|
|
asyncCallback(function() {
|
|
callback("[MemoryContext] Error: write operation on read only context");
|
|
});
|
|
return;
|
|
}
|
|
var objectStore = this.objectStore;
|
|
Object.keys(objectStore).forEach(function(key){
|
|
delete objectStore[key];
|
|
});
|
|
asyncCallback(callback);
|
|
};
|
|
|
|
// Memory context doesn't care about differences between Object and Buffer
|
|
MemoryContext.prototype.getObject =
|
|
MemoryContext.prototype.getBuffer =
|
|
function(key, callback) {
|
|
var that = this;
|
|
asyncCallback(function() {
|
|
callback(null, that.objectStore[key]);
|
|
});
|
|
};
|
|
MemoryContext.prototype.putObject =
|
|
MemoryContext.prototype.putBuffer =
|
|
function(key, value, callback) {
|
|
if(this.readOnly) {
|
|
asyncCallback(function() {
|
|
callback("[MemoryContext] Error: write operation on read only context");
|
|
});
|
|
return;
|
|
}
|
|
this.objectStore[key] = value;
|
|
asyncCallback(callback);
|
|
};
|
|
|
|
MemoryContext.prototype.delete = function(key, callback) {
|
|
if(this.readOnly) {
|
|
asyncCallback(function() {
|
|
callback("[MemoryContext] Error: write operation on read only context");
|
|
});
|
|
return;
|
|
}
|
|
delete this.objectStore[key];
|
|
asyncCallback(callback);
|
|
};
|
|
|
|
|
|
function Memory(name) {
|
|
this.name = name || FILE_SYSTEM_NAME;
|
|
}
|
|
Memory.isSupported = function() {
|
|
return true;
|
|
};
|
|
|
|
Memory.prototype.open = function(callback) {
|
|
this.db = createDB(this.name);
|
|
asyncCallback(callback);
|
|
};
|
|
Memory.prototype.getReadOnlyContext = function() {
|
|
return new MemoryContext(this.db, true);
|
|
};
|
|
Memory.prototype.getReadWriteContext = function() {
|
|
return new MemoryContext(this.db, false);
|
|
};
|
|
|
|
module.exports = Memory;
|
|
|
|
},{"../../lib/async.js":1,"../constants.js":11}],25:[function(_dereq_,module,exports){
|
|
(function (global){
|
|
var FILE_SYSTEM_NAME = _dereq_('../constants.js').FILE_SYSTEM_NAME;
|
|
var FILE_STORE_NAME = _dereq_('../constants.js').FILE_STORE_NAME;
|
|
var WSQL_VERSION = _dereq_('../constants.js').WSQL_VERSION;
|
|
var WSQL_SIZE = _dereq_('../constants.js').WSQL_SIZE;
|
|
var WSQL_DESC = _dereq_('../constants.js').WSQL_DESC;
|
|
var Errors = _dereq_('../errors.js');
|
|
var FilerBuffer = _dereq_('../buffer.js');
|
|
var base64ArrayBuffer = _dereq_('base64-arraybuffer');
|
|
|
|
function WebSQLContext(db, isReadOnly) {
|
|
var that = this;
|
|
this.getTransaction = function(callback) {
|
|
if(that.transaction) {
|
|
callback(that.transaction);
|
|
return;
|
|
}
|
|
// Either do readTransaction() (read-only) or transaction() (read/write)
|
|
db[isReadOnly ? 'readTransaction' : 'transaction'](function(transaction) {
|
|
that.transaction = transaction;
|
|
callback(transaction);
|
|
});
|
|
};
|
|
}
|
|
|
|
WebSQLContext.prototype.clear = function(callback) {
|
|
function onError(transaction, error) {
|
|
callback(error);
|
|
}
|
|
function onSuccess(transaction, result) {
|
|
callback(null);
|
|
}
|
|
this.getTransaction(function(transaction) {
|
|
transaction.executeSql("DELETE FROM " + FILE_STORE_NAME + ";",
|
|
[], onSuccess, onError);
|
|
});
|
|
};
|
|
|
|
function _get(getTransaction, key, callback) {
|
|
function onSuccess(transaction, result) {
|
|
// If the key isn't found, return null
|
|
var value = result.rows.length === 0 ? null : result.rows.item(0).data;
|
|
callback(null, value);
|
|
}
|
|
function onError(transaction, error) {
|
|
callback(error);
|
|
}
|
|
getTransaction(function(transaction) {
|
|
transaction.executeSql("SELECT data FROM " + FILE_STORE_NAME + " WHERE id = ? LIMIT 1;",
|
|
[key], onSuccess, onError);
|
|
});
|
|
}
|
|
WebSQLContext.prototype.getObject = function(key, callback) {
|
|
_get(this.getTransaction, key, function(err, result) {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
|
|
try {
|
|
if(result) {
|
|
result = JSON.parse(result);
|
|
}
|
|
} catch(e) {
|
|
return callback(e);
|
|
}
|
|
|
|
callback(null, result);
|
|
});
|
|
};
|
|
WebSQLContext.prototype.getBuffer = function(key, callback) {
|
|
_get(this.getTransaction, key, function(err, result) {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
|
|
// Deal with zero-length ArrayBuffers, which will be encoded as ''
|
|
if(result || result === '') {
|
|
var arrayBuffer = base64ArrayBuffer.decode(result);
|
|
result = new FilerBuffer(arrayBuffer);
|
|
}
|
|
|
|
callback(null, result);
|
|
});
|
|
};
|
|
|
|
function _put(getTransaction, key, value, callback) {
|
|
function onSuccess(transaction, result) {
|
|
callback(null);
|
|
}
|
|
function onError(transaction, error) {
|
|
callback(error);
|
|
}
|
|
getTransaction(function(transaction) {
|
|
transaction.executeSql("INSERT OR REPLACE INTO " + FILE_STORE_NAME + " (id, data) VALUES (?, ?);",
|
|
[key, value], onSuccess, onError);
|
|
});
|
|
}
|
|
WebSQLContext.prototype.putObject = function(key, value, callback) {
|
|
var json = JSON.stringify(value);
|
|
_put(this.getTransaction, key, json, callback);
|
|
};
|
|
WebSQLContext.prototype.putBuffer = function(key, uint8BackedBuffer, callback) {
|
|
var base64 = base64ArrayBuffer.encode(uint8BackedBuffer.buffer);
|
|
_put(this.getTransaction, key, base64, callback);
|
|
};
|
|
|
|
WebSQLContext.prototype.delete = function(key, callback) {
|
|
function onSuccess(transaction, result) {
|
|
callback(null);
|
|
}
|
|
function onError(transaction, error) {
|
|
callback(error);
|
|
}
|
|
this.getTransaction(function(transaction) {
|
|
transaction.executeSql("DELETE FROM " + FILE_STORE_NAME + " WHERE id = ?;",
|
|
[key], onSuccess, onError);
|
|
});
|
|
};
|
|
|
|
|
|
function WebSQL(name) {
|
|
this.name = name || FILE_SYSTEM_NAME;
|
|
this.db = null;
|
|
}
|
|
WebSQL.isSupported = function() {
|
|
return !!global.openDatabase;
|
|
};
|
|
|
|
WebSQL.prototype.open = function(callback) {
|
|
var that = this;
|
|
|
|
// Bail if we already have a db open
|
|
if(that.db) {
|
|
return callback();
|
|
}
|
|
|
|
var db = global.openDatabase(that.name, WSQL_VERSION, WSQL_DESC, WSQL_SIZE);
|
|
if(!db) {
|
|
callback("[WebSQL] Unable to open database.");
|
|
return;
|
|
}
|
|
|
|
function onError(transaction, error) {
|
|
if (error.code === 5) {
|
|
callback(new Errors.EINVAL('WebSQL cannot be accessed. If private browsing is enabled, disable it.'));
|
|
}
|
|
callback(error);
|
|
}
|
|
function onSuccess(transaction, result) {
|
|
that.db = db;
|
|
callback();
|
|
}
|
|
|
|
// Create the table and index we'll need to store the fs data.
|
|
db.transaction(function(transaction) {
|
|
function createIndex(transaction) {
|
|
transaction.executeSql("CREATE INDEX IF NOT EXISTS idx_" + FILE_STORE_NAME + "_id" +
|
|
" on " + FILE_STORE_NAME + " (id);",
|
|
[], onSuccess, onError);
|
|
}
|
|
transaction.executeSql("CREATE TABLE IF NOT EXISTS " + FILE_STORE_NAME + " (id unique, data TEXT);",
|
|
[], createIndex, onError);
|
|
});
|
|
};
|
|
WebSQL.prototype.getReadOnlyContext = function() {
|
|
return new WebSQLContext(this.db, true);
|
|
};
|
|
WebSQL.prototype.getReadWriteContext = function() {
|
|
return new WebSQLContext(this.db, false);
|
|
};
|
|
|
|
module.exports = WebSQL;
|
|
|
|
}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"../buffer.js":10,"../constants.js":11,"../errors.js":14,"base64-arraybuffer":5}],26:[function(_dereq_,module,exports){
|
|
function guid() {
|
|
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
|
|
var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
|
|
return v.toString(16);
|
|
}).toUpperCase();
|
|
}
|
|
|
|
function nop() {}
|
|
|
|
/**
|
|
* Convert a Uint8Array to a regular array
|
|
*/
|
|
function u8toArray(u8) {
|
|
var array = [];
|
|
var len = u8.length;
|
|
for(var i = 0; i < len; i++) {
|
|
array[i] = u8[i];
|
|
}
|
|
return array;
|
|
}
|
|
|
|
module.exports = {
|
|
guid: guid,
|
|
u8toArray: u8toArray,
|
|
nop: nop
|
|
};
|
|
|
|
},{}],27:[function(_dereq_,module,exports){
|
|
var defaults = _dereq_('../constants.js').ENVIRONMENT;
|
|
|
|
module.exports = function Environment(env) {
|
|
env = env || {};
|
|
env.TMP = env.TMP || defaults.TMP;
|
|
env.PATH = env.PATH || defaults.PATH;
|
|
|
|
this.get = function(name) {
|
|
return env[name];
|
|
};
|
|
|
|
this.set = function(name, value) {
|
|
env[name] = value;
|
|
};
|
|
};
|
|
|
|
},{"../constants.js":11}],28:[function(_dereq_,module,exports){
|
|
var Path = _dereq_('../path.js');
|
|
var Errors = _dereq_('../errors.js');
|
|
var Environment = _dereq_('./environment.js');
|
|
var async = _dereq_('../../lib/async.js');
|
|
var Encoding = _dereq_('../encoding.js');
|
|
|
|
function Shell(fs, options) {
|
|
options = options || {};
|
|
|
|
var env = new Environment(options.env);
|
|
var cwd = '/';
|
|
|
|
/**
|
|
* The bound FileSystem (cannot be changed)
|
|
*/
|
|
Object.defineProperty(this, 'fs', {
|
|
get: function() { return fs; },
|
|
enumerable: true
|
|
});
|
|
|
|
/**
|
|
* The shell's environment (e.g., for things like
|
|
* path, tmp, and other env vars). Use env.get()
|
|
* and env.set() to work with variables.
|
|
*/
|
|
Object.defineProperty(this, 'env', {
|
|
get: function() { return env; },
|
|
enumerable: true
|
|
});
|
|
|
|
/**
|
|
* Change the current working directory. We
|
|
* include `cd` on the `this` vs. proto so that
|
|
* we can access cwd without exposing it externally.
|
|
*/
|
|
this.cd = function(path, callback) {
|
|
path = Path.resolve(cwd, path);
|
|
// Make sure the path actually exists, and is a dir
|
|
fs.stat(path, function(err, stats) {
|
|
if(err) {
|
|
callback(new Errors.ENOTDIR(null, path));
|
|
return;
|
|
}
|
|
if(stats.type === 'DIRECTORY') {
|
|
cwd = path;
|
|
callback();
|
|
} else {
|
|
callback(new Errors.ENOTDIR(null, path));
|
|
}
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get the current working directory (changed with `cd()`)
|
|
*/
|
|
this.pwd = function() {
|
|
return cwd;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Execute the .js command located at `path`. Such commands
|
|
* should assume the existence of 3 arguments, which will be
|
|
* defined at runtime:
|
|
*
|
|
* * fs - the current shell's bound filesystem object
|
|
* * args - a list of arguments for the command, or an empty list if none
|
|
* * callback - a callback function(error, result) to call when done.
|
|
*
|
|
* The .js command's contents should be the body of a function
|
|
* that looks like this:
|
|
*
|
|
* function(fs, args, callback) {
|
|
* // .js code here
|
|
* }
|
|
*/
|
|
Shell.prototype.exec = function(path, args, callback) {
|
|
/* jshint evil:true */
|
|
var sh = this;
|
|
var fs = sh.fs;
|
|
if(typeof args === 'function') {
|
|
callback = args;
|
|
args = [];
|
|
}
|
|
args = args || [];
|
|
callback = callback || function(){};
|
|
path = Path.resolve(sh.pwd(), path);
|
|
|
|
fs.readFile(path, "utf8", function(error, data) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
try {
|
|
var cmd = new Function('fs', 'args', 'callback', data);
|
|
cmd(fs, args, callback);
|
|
} catch(e) {
|
|
callback(e);
|
|
}
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Create a file if it does not exist, or update access and
|
|
* modified times if it does. Valid options include:
|
|
*
|
|
* * updateOnly - whether to create the file if missing (defaults to false)
|
|
* * date - use the provided Date value instead of current date/time
|
|
*/
|
|
Shell.prototype.touch = function(path, options, callback) {
|
|
var sh = this;
|
|
var fs = sh.fs;
|
|
if(typeof options === 'function') {
|
|
callback = options;
|
|
options = {};
|
|
}
|
|
options = options || {};
|
|
callback = callback || function(){};
|
|
path = Path.resolve(sh.pwd(), path);
|
|
|
|
function createFile(path) {
|
|
fs.writeFile(path, '', callback);
|
|
}
|
|
|
|
function updateTimes(path) {
|
|
var now = Date.now();
|
|
var atime = options.date || now;
|
|
var mtime = options.date || now;
|
|
|
|
fs.utimes(path, atime, mtime, callback);
|
|
}
|
|
|
|
fs.stat(path, function(error, stats) {
|
|
if(error) {
|
|
if(options.updateOnly === true) {
|
|
callback();
|
|
} else {
|
|
createFile(path);
|
|
}
|
|
} else {
|
|
updateTimes(path);
|
|
}
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Concatenate multiple files into a single String, with each
|
|
* file separated by a newline. The `files` argument should
|
|
* be a String (path to single file) or an Array of Strings
|
|
* (multiple file paths).
|
|
*/
|
|
Shell.prototype.cat = function(files, callback) {
|
|
var sh = this;
|
|
var fs = sh.fs;
|
|
var all = '';
|
|
callback = callback || function(){};
|
|
|
|
if(!files) {
|
|
callback(new Errors.EINVAL('Missing files argument'));
|
|
return;
|
|
}
|
|
|
|
files = typeof files === 'string' ? [ files ] : files;
|
|
|
|
function append(item, callback) {
|
|
var filename = Path.resolve(sh.pwd(), item);
|
|
fs.readFile(filename, 'utf8', function(error, data) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
all += data + '\n';
|
|
callback();
|
|
});
|
|
}
|
|
|
|
async.eachSeries(files, append, function(error) {
|
|
if(error) {
|
|
callback(error);
|
|
} else {
|
|
callback(null, all.replace(/\n$/, ''));
|
|
}
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Get the listing of a directory, returning an array of
|
|
* file entries in the following form:
|
|
*
|
|
* {
|
|
* path: <String> the basename of the directory entry
|
|
* links: <Number> the number of links to the entry
|
|
* size: <Number> the size in bytes of the entry
|
|
* modified: <Number> the last modified date/time
|
|
* type: <String> the type of the entry
|
|
* contents: <Array> an optional array of child entries
|
|
* }
|
|
*
|
|
* By default ls() gives a shallow listing. If you want
|
|
* to follow directories as they are encountered, use
|
|
* the `recursive=true` option.
|
|
*/
|
|
Shell.prototype.ls = function(dir, options, callback) {
|
|
var sh = this;
|
|
var fs = sh.fs;
|
|
if(typeof options === 'function') {
|
|
callback = options;
|
|
options = {};
|
|
}
|
|
options = options || {};
|
|
callback = callback || function(){};
|
|
|
|
if(!dir) {
|
|
callback(new Errors.EINVAL('Missing dir argument'));
|
|
return;
|
|
}
|
|
|
|
function list(path, callback) {
|
|
var pathname = Path.resolve(sh.pwd(), path);
|
|
var result = [];
|
|
|
|
fs.readdir(pathname, function(error, entries) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
|
|
function getDirEntry(name, callback) {
|
|
name = Path.join(pathname, name);
|
|
fs.stat(name, function(error, stats) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
var entry = {
|
|
path: Path.basename(name),
|
|
links: stats.nlinks,
|
|
size: stats.size,
|
|
modified: stats.mtime,
|
|
type: stats.type
|
|
};
|
|
|
|
if(options.recursive && stats.type === 'DIRECTORY') {
|
|
list(Path.join(pathname, entry.path), function(error, items) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
entry.contents = items;
|
|
result.push(entry);
|
|
callback();
|
|
});
|
|
} else {
|
|
result.push(entry);
|
|
callback();
|
|
}
|
|
});
|
|
}
|
|
|
|
async.eachSeries(entries, getDirEntry, function(error) {
|
|
callback(error, result);
|
|
});
|
|
});
|
|
}
|
|
|
|
list(dir, callback);
|
|
};
|
|
|
|
/**
|
|
* Removes the file or directory at `path`. If `path` is a file
|
|
* it will be removed. If `path` is a directory, it will be
|
|
* removed if it is empty, otherwise the callback will receive
|
|
* an error. In order to remove non-empty directories, use the
|
|
* `recursive=true` option.
|
|
*/
|
|
Shell.prototype.rm = function(path, options, callback) {
|
|
var sh = this;
|
|
var fs = sh.fs;
|
|
if(typeof options === 'function') {
|
|
callback = options;
|
|
options = {};
|
|
}
|
|
options = options || {};
|
|
callback = callback || function(){};
|
|
|
|
if(!path) {
|
|
callback(new Errors.EINVAL('Missing path argument'));
|
|
return;
|
|
}
|
|
|
|
function remove(pathname, callback) {
|
|
pathname = Path.resolve(sh.pwd(), pathname);
|
|
fs.stat(pathname, function(error, stats) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
|
|
// If this is a file, delete it and we're done
|
|
if(stats.type === 'FILE') {
|
|
fs.unlink(pathname, callback);
|
|
return;
|
|
}
|
|
|
|
// If it's a dir, check if it's empty
|
|
fs.readdir(pathname, function(error, entries) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
|
|
// If dir is empty, delete it and we're done
|
|
if(entries.length === 0) {
|
|
fs.rmdir(pathname, callback);
|
|
return;
|
|
}
|
|
|
|
// If not, see if we're allowed to delete recursively
|
|
if(!options.recursive) {
|
|
callback(new Errors.ENOTEMPTY(null, pathname));
|
|
return;
|
|
}
|
|
|
|
// Remove each dir entry recursively, then delete the dir.
|
|
entries = entries.map(function(filename) {
|
|
// Root dir entries absolutely
|
|
return Path.join(pathname, filename);
|
|
});
|
|
async.eachSeries(entries, remove, function(error) {
|
|
if(error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
fs.rmdir(pathname, callback);
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
remove(path, callback);
|
|
};
|
|
|
|
/**
|
|
* Gets the path to the temporary directory, creating it if not
|
|
* present. The directory used is the one specified in
|
|
* env.TMP. The callback receives (error, tempDirName).
|
|
*/
|
|
Shell.prototype.tempDir = function(callback) {
|
|
var sh = this;
|
|
var fs = sh.fs;
|
|
var tmp = sh.env.get('TMP');
|
|
callback = callback || function(){};
|
|
|
|
// Try and create it, and it will either work or fail
|
|
// but either way it's now there.
|
|
fs.mkdir(tmp, function(err) {
|
|
callback(null, tmp);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Recursively creates the directory at `path`. If the parent
|
|
* of `path` does not exist, it will be created.
|
|
* Based off EnsureDir by Sam X. Xu
|
|
* https://www.npmjs.org/package/ensureDir
|
|
* MIT License
|
|
*/
|
|
Shell.prototype.mkdirp = function(path, callback) {
|
|
var sh = this;
|
|
var fs = sh.fs;
|
|
callback = callback || function(){};
|
|
|
|
if(!path) {
|
|
callback(new Errors.EINVAL('Missing path argument'));
|
|
return;
|
|
}
|
|
else if (path === '/') {
|
|
callback();
|
|
return;
|
|
}
|
|
function _mkdirp(path, callback) {
|
|
fs.stat(path, function (err, stat) {
|
|
if(stat) {
|
|
if(stat.isDirectory()) {
|
|
callback();
|
|
return;
|
|
}
|
|
else if (stat.isFile()) {
|
|
callback(new Errors.ENOTDIR(null, path));
|
|
return;
|
|
}
|
|
}
|
|
else if (err && err.code !== 'ENOENT') {
|
|
callback(err);
|
|
return;
|
|
}
|
|
else {
|
|
var parent = Path.dirname(path);
|
|
if(parent === '/') {
|
|
fs.mkdir(path, function (err) {
|
|
if (err && err.code != 'EEXIST') {
|
|
callback(err);
|
|
return;
|
|
}
|
|
callback();
|
|
return;
|
|
});
|
|
}
|
|
else {
|
|
_mkdirp(parent, function (err) {
|
|
if (err) return callback(err);
|
|
fs.mkdir(path, function (err) {
|
|
if (err && err.code != 'EEXIST') {
|
|
callback(err);
|
|
return;
|
|
}
|
|
callback();
|
|
return;
|
|
});
|
|
});
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
_mkdirp(path, callback);
|
|
};
|
|
|
|
module.exports = Shell;
|
|
|
|
},{"../../lib/async.js":1,"../encoding.js":13,"../errors.js":14,"../path.js":21,"./environment.js":27}],29:[function(_dereq_,module,exports){
|
|
var Constants = _dereq_('./constants.js');
|
|
|
|
function Stats(fileNode, devName) {
|
|
this.node = fileNode.id;
|
|
this.dev = devName;
|
|
this.size = fileNode.size;
|
|
this.nlinks = fileNode.nlinks;
|
|
this.atime = fileNode.atime;
|
|
this.mtime = fileNode.mtime;
|
|
this.ctime = fileNode.ctime;
|
|
this.type = fileNode.mode;
|
|
}
|
|
|
|
Stats.prototype.isFile = function() {
|
|
return this.type === Constants.MODE_FILE;
|
|
};
|
|
|
|
Stats.prototype.isDirectory = function() {
|
|
return this.type === Constants.MODE_DIRECTORY;
|
|
};
|
|
|
|
Stats.prototype.isSymbolicLink = function() {
|
|
return this.type === Constants.MODE_SYMBOLIC_LINK;
|
|
};
|
|
|
|
// These will always be false in Filer.
|
|
Stats.prototype.isSocket =
|
|
Stats.prototype.isFIFO =
|
|
Stats.prototype.isCharacterDevice =
|
|
Stats.prototype.isBlockDevice =
|
|
function() {
|
|
return false;
|
|
};
|
|
|
|
module.exports = Stats;
|
|
|
|
},{"./constants.js":11}],30:[function(_dereq_,module,exports){
|
|
var Constants = _dereq_('./constants.js');
|
|
|
|
function SuperNode(options) {
|
|
var now = Date.now();
|
|
|
|
this.id = Constants.SUPER_NODE_ID;
|
|
this.mode = Constants.MODE_META;
|
|
this.atime = options.atime || now;
|
|
this.ctime = options.ctime || now;
|
|
this.mtime = options.mtime || now;
|
|
// root node id (randomly generated)
|
|
this.rnode = options.rnode;
|
|
}
|
|
|
|
SuperNode.create = function(options, callback) {
|
|
options.guid(function(err, rnode) {
|
|
if(err) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
options.rnode = options.rnode || rnode;
|
|
callback(null, new SuperNode(options));
|
|
});
|
|
};
|
|
|
|
module.exports = SuperNode;
|
|
|
|
},{"./constants.js":11}]},{},[18])
|
|
(18)
|
|
}); |