a4c08084bf
* Move vendor files * Move sync/vendor & config updates * Update dropbox sdk from v4.0.9 to v4.0.13 * Fix typo * Fix zip path * Pass fetch option to Dropbox
967 lines
30 KiB
JavaScript
967 lines
30 KiB
JavaScript
/*
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Copyright (c) 2013 Gildas Lormeau. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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3. The names of the authors may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
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INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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(function(obj) {
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"use strict";
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var ERR_BAD_FORMAT = "File format is not recognized.";
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var ERR_CRC = "CRC failed.";
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var ERR_ENCRYPTED = "File contains encrypted entry.";
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var ERR_ZIP64 = "File is using Zip64 (4gb+ file size).";
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var ERR_READ = "Error while reading zip file.";
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var ERR_WRITE = "Error while writing zip file.";
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var ERR_WRITE_DATA = "Error while writing file data.";
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var ERR_READ_DATA = "Error while reading file data.";
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var ERR_DUPLICATED_NAME = "File already exists.";
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var CHUNK_SIZE = 512 * 1024;
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var TEXT_PLAIN = "text/plain";
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var appendABViewSupported;
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try {
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appendABViewSupported = new Blob([ new DataView(new ArrayBuffer(0)) ]).size === 0;
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} catch (e) {
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}
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function Crc32() {
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this.crc = -1;
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}
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Crc32.prototype.append = function append(data) {
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var crc = this.crc | 0, table = this.table;
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for (var offset = 0, len = data.length | 0; offset < len; offset++)
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crc = (crc >>> 8) ^ table[(crc ^ data[offset]) & 0xFF];
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this.crc = crc;
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};
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Crc32.prototype.get = function get() {
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return ~this.crc;
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};
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Crc32.prototype.table = (function() {
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var i, j, t, table = []; // Uint32Array is actually slower than []
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for (i = 0; i < 256; i++) {
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t = i;
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for (j = 0; j < 8; j++)
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if (t & 1)
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t = (t >>> 1) ^ 0xEDB88320;
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else
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t = t >>> 1;
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table[i] = t;
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}
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return table;
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})();
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// "no-op" codec
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function NOOP() {}
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NOOP.prototype.append = function append(bytes, onprogress) {
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return bytes;
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};
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NOOP.prototype.flush = function flush() {};
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function blobSlice(blob, index, length) {
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if (index < 0 || length < 0 || index + length > blob.size)
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throw new RangeError('offset:' + index + ', length:' + length + ', size:' + blob.size);
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if (blob.slice)
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return blob.slice(index, index + length);
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else if (blob.webkitSlice)
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return blob.webkitSlice(index, index + length);
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else if (blob.mozSlice)
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return blob.mozSlice(index, index + length);
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else if (blob.msSlice)
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return blob.msSlice(index, index + length);
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}
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function getDataHelper(byteLength, bytes) {
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var dataBuffer, dataArray;
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dataBuffer = new ArrayBuffer(byteLength);
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dataArray = new Uint8Array(dataBuffer);
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if (bytes)
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dataArray.set(bytes, 0);
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return {
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buffer : dataBuffer,
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array : dataArray,
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view : new DataView(dataBuffer)
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};
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}
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// Readers
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function Reader() {
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}
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function TextReader(text) {
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var that = this, blobReader;
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function init(callback, onerror) {
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var blob = new Blob([ text ], {
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type : TEXT_PLAIN
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});
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blobReader = new BlobReader(blob);
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blobReader.init(function() {
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that.size = blobReader.size;
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callback();
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}, onerror);
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}
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function readUint8Array(index, length, callback, onerror) {
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blobReader.readUint8Array(index, length, callback, onerror);
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}
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that.size = 0;
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that.init = init;
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that.readUint8Array = readUint8Array;
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}
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TextReader.prototype = new Reader();
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TextReader.prototype.constructor = TextReader;
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function Data64URIReader(dataURI) {
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var that = this, dataStart;
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function init(callback) {
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var dataEnd = dataURI.length;
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while (dataURI.charAt(dataEnd - 1) == "=")
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dataEnd--;
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dataStart = dataURI.indexOf(",") + 1;
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that.size = Math.floor((dataEnd - dataStart) * 0.75);
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callback();
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}
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function readUint8Array(index, length, callback) {
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var i, data = getDataHelper(length);
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var start = Math.floor(index / 3) * 4;
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var end = Math.ceil((index + length) / 3) * 4;
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var bytes = obj.atob(dataURI.substring(start + dataStart, end + dataStart));
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var delta = index - Math.floor(start / 4) * 3;
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for (i = delta; i < delta + length; i++)
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data.array[i - delta] = bytes.charCodeAt(i);
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callback(data.array);
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}
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that.size = 0;
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that.init = init;
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that.readUint8Array = readUint8Array;
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}
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Data64URIReader.prototype = new Reader();
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Data64URIReader.prototype.constructor = Data64URIReader;
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function BlobReader(blob) {
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var that = this;
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function init(callback) {
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that.size = blob.size;
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callback();
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}
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function readUint8Array(index, length, callback, onerror) {
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var reader = new FileReader();
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reader.onload = function(e) {
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callback(new Uint8Array(e.target.result));
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};
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reader.onerror = onerror;
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try {
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reader.readAsArrayBuffer(blobSlice(blob, index, length));
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} catch (e) {
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onerror(e);
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}
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}
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that.size = 0;
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that.init = init;
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that.readUint8Array = readUint8Array;
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}
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BlobReader.prototype = new Reader();
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BlobReader.prototype.constructor = BlobReader;
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// Writers
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function Writer() {
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}
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Writer.prototype.getData = function(callback) {
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callback(this.data);
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};
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function TextWriter(encoding) {
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var that = this, blob;
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function init(callback) {
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blob = new Blob([], {
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type : TEXT_PLAIN
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});
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callback();
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}
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function writeUint8Array(array, callback) {
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blob = new Blob([ blob, appendABViewSupported ? array : array.buffer ], {
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type : TEXT_PLAIN
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});
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callback();
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}
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function getData(callback, onerror) {
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var reader = new FileReader();
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reader.onload = function(e) {
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callback(e.target.result);
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};
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reader.onerror = onerror;
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reader.readAsText(blob, encoding);
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}
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that.init = init;
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that.writeUint8Array = writeUint8Array;
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that.getData = getData;
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}
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TextWriter.prototype = new Writer();
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TextWriter.prototype.constructor = TextWriter;
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function Data64URIWriter(contentType) {
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var that = this, data = "", pending = "";
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function init(callback) {
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data += "data:" + (contentType || "") + ";base64,";
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callback();
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}
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function writeUint8Array(array, callback) {
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var i, delta = pending.length, dataString = pending;
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pending = "";
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for (i = 0; i < (Math.floor((delta + array.length) / 3) * 3) - delta; i++)
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dataString += String.fromCharCode(array[i]);
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for (; i < array.length; i++)
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pending += String.fromCharCode(array[i]);
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if (dataString.length > 2)
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data += obj.btoa(dataString);
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else
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pending = dataString;
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callback();
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}
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function getData(callback) {
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callback(data + obj.btoa(pending));
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}
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that.init = init;
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that.writeUint8Array = writeUint8Array;
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that.getData = getData;
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}
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Data64URIWriter.prototype = new Writer();
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Data64URIWriter.prototype.constructor = Data64URIWriter;
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function BlobWriter(contentType) {
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var blob, that = this;
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function init(callback) {
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blob = new Blob([], {
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type : contentType
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});
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callback();
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}
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function writeUint8Array(array, callback) {
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blob = new Blob([ blob, appendABViewSupported ? array : array.buffer ], {
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type : contentType
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});
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callback();
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}
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function getData(callback) {
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callback(blob);
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}
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that.init = init;
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that.writeUint8Array = writeUint8Array;
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that.getData = getData;
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}
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BlobWriter.prototype = new Writer();
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BlobWriter.prototype.constructor = BlobWriter;
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/**
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* inflate/deflate core functions
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* @param worker {Worker} web worker for the task.
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* @param initialMessage {Object} initial message to be sent to the worker. should contain
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* sn(serial number for distinguishing multiple tasks sent to the worker), and codecClass.
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* This function may add more properties before sending.
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*/
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function launchWorkerProcess(worker, initialMessage, reader, writer, offset, size, onprogress, onend, onreaderror, onwriteerror) {
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var chunkIndex = 0, index, outputSize, sn = initialMessage.sn, crc;
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function onflush() {
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worker.removeEventListener('message', onmessage, false);
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onend(outputSize, crc);
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}
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function onmessage(event) {
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var message = event.data, data = message.data, err = message.error;
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if (err) {
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err.toString = function () { return 'Error: ' + this.message; };
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onreaderror(err);
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return;
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}
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if (message.sn !== sn)
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return;
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if (typeof message.codecTime === 'number')
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worker.codecTime += message.codecTime; // should be before onflush()
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if (typeof message.crcTime === 'number')
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worker.crcTime += message.crcTime;
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switch (message.type) {
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case 'append':
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if (data) {
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outputSize += data.length;
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writer.writeUint8Array(data, function() {
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step();
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}, onwriteerror);
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} else
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step();
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break;
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case 'flush':
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crc = message.crc;
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if (data) {
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outputSize += data.length;
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writer.writeUint8Array(data, function() {
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onflush();
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}, onwriteerror);
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} else
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onflush();
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break;
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case 'progress':
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if (onprogress)
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onprogress(index + message.loaded, size);
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break;
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case 'importScripts': //no need to handle here
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case 'newTask':
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case 'echo':
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break;
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default:
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console.warn('zip.js:launchWorkerProcess: unknown message: ', message);
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}
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}
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function step() {
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index = chunkIndex * CHUNK_SIZE;
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// use `<=` instead of `<`, because `size` may be 0.
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if (index <= size) {
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reader.readUint8Array(offset + index, Math.min(CHUNK_SIZE, size - index), function(array) {
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if (onprogress)
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onprogress(index, size);
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var msg = index === 0 ? initialMessage : {sn : sn};
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msg.type = 'append';
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msg.data = array;
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// posting a message with transferables will fail on IE10
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try {
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worker.postMessage(msg, [array.buffer]);
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} catch(ex) {
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worker.postMessage(msg); // retry without transferables
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}
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chunkIndex++;
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}, onreaderror);
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} else {
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worker.postMessage({
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sn: sn,
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type: 'flush'
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});
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}
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}
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outputSize = 0;
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worker.addEventListener('message', onmessage, false);
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step();
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}
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function launchProcess(process, reader, writer, offset, size, crcType, onprogress, onend, onreaderror, onwriteerror) {
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var chunkIndex = 0, index, outputSize = 0,
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crcInput = crcType === 'input',
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crcOutput = crcType === 'output',
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crc = new Crc32();
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function step() {
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var outputData;
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index = chunkIndex * CHUNK_SIZE;
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if (index < size)
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reader.readUint8Array(offset + index, Math.min(CHUNK_SIZE, size - index), function(inputData) {
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var outputData;
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try {
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outputData = process.append(inputData, function(loaded) {
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if (onprogress)
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onprogress(index + loaded, size);
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});
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} catch (e) {
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onreaderror(e);
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return;
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}
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if (outputData) {
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outputSize += outputData.length;
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writer.writeUint8Array(outputData, function() {
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chunkIndex++;
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setTimeout(step, 1);
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}, onwriteerror);
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if (crcOutput)
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crc.append(outputData);
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} else {
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chunkIndex++;
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setTimeout(step, 1);
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}
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if (crcInput)
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crc.append(inputData);
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if (onprogress)
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onprogress(index, size);
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}, onreaderror);
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else {
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try {
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outputData = process.flush();
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} catch (e) {
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onreaderror(e);
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return;
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}
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if (outputData) {
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if (crcOutput)
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crc.append(outputData);
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outputSize += outputData.length;
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writer.writeUint8Array(outputData, function() {
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onend(outputSize, crc.get());
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}, onwriteerror);
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} else
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onend(outputSize, crc.get());
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}
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}
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step();
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}
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function inflate(worker, sn, reader, writer, offset, size, computeCrc32, onend, onprogress, onreaderror, onwriteerror) {
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var crcType = computeCrc32 ? 'output' : 'none';
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if (obj.zip.useWebWorkers) {
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var initialMessage = {
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sn: sn,
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codecClass: 'Inflater',
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crcType: crcType,
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};
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launchWorkerProcess(worker, initialMessage, reader, writer, offset, size, onprogress, onend, onreaderror, onwriteerror);
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} else
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launchProcess(new obj.zip.Inflater(), reader, writer, offset, size, crcType, onprogress, onend, onreaderror, onwriteerror);
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}
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function deflate(worker, sn, reader, writer, level, onend, onprogress, onreaderror, onwriteerror) {
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var crcType = 'input';
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if (obj.zip.useWebWorkers) {
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var initialMessage = {
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sn: sn,
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options: {level: level},
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codecClass: 'Deflater',
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crcType: crcType,
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};
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launchWorkerProcess(worker, initialMessage, reader, writer, 0, reader.size, onprogress, onend, onreaderror, onwriteerror);
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} else
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launchProcess(new obj.zip.Deflater(), reader, writer, 0, reader.size, crcType, onprogress, onend, onreaderror, onwriteerror);
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}
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function copy(worker, sn, reader, writer, offset, size, computeCrc32, onend, onprogress, onreaderror, onwriteerror) {
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var crcType = 'input';
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if (obj.zip.useWebWorkers && computeCrc32) {
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var initialMessage = {
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sn: sn,
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codecClass: 'NOOP',
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crcType: crcType,
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};
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launchWorkerProcess(worker, initialMessage, reader, writer, offset, size, onprogress, onend, onreaderror, onwriteerror);
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} else
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launchProcess(new NOOP(), reader, writer, offset, size, crcType, onprogress, onend, onreaderror, onwriteerror);
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}
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// ZipReader
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function decodeASCII(str) {
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var i, out = "", charCode, extendedASCII = [ '\u00C7', '\u00FC', '\u00E9', '\u00E2', '\u00E4', '\u00E0', '\u00E5', '\u00E7', '\u00EA', '\u00EB',
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'\u00E8', '\u00EF', '\u00EE', '\u00EC', '\u00C4', '\u00C5', '\u00C9', '\u00E6', '\u00C6', '\u00F4', '\u00F6', '\u00F2', '\u00FB', '\u00F9',
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'\u00FF', '\u00D6', '\u00DC', '\u00F8', '\u00A3', '\u00D8', '\u00D7', '\u0192', '\u00E1', '\u00ED', '\u00F3', '\u00FA', '\u00F1', '\u00D1',
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'\u00AA', '\u00BA', '\u00BF', '\u00AE', '\u00AC', '\u00BD', '\u00BC', '\u00A1', '\u00AB', '\u00BB', '_', '_', '_', '\u00A6', '\u00A6',
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'\u00C1', '\u00C2', '\u00C0', '\u00A9', '\u00A6', '\u00A6', '+', '+', '\u00A2', '\u00A5', '+', '+', '-', '-', '+', '-', '+', '\u00E3',
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'\u00C3', '+', '+', '-', '-', '\u00A6', '-', '+', '\u00A4', '\u00F0', '\u00D0', '\u00CA', '\u00CB', '\u00C8', 'i', '\u00CD', '\u00CE',
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'\u00CF', '+', '+', '_', '_', '\u00A6', '\u00CC', '_', '\u00D3', '\u00DF', '\u00D4', '\u00D2', '\u00F5', '\u00D5', '\u00B5', '\u00FE',
|
|
'\u00DE', '\u00DA', '\u00DB', '\u00D9', '\u00FD', '\u00DD', '\u00AF', '\u00B4', '\u00AD', '\u00B1', '_', '\u00BE', '\u00B6', '\u00A7',
|
|
'\u00F7', '\u00B8', '\u00B0', '\u00A8', '\u00B7', '\u00B9', '\u00B3', '\u00B2', '_', ' ' ];
|
|
for (i = 0; i < str.length; i++) {
|
|
charCode = str.charCodeAt(i) & 0xFF;
|
|
if (charCode > 127)
|
|
out += extendedASCII[charCode - 128];
|
|
else
|
|
out += String.fromCharCode(charCode);
|
|
}
|
|
return out;
|
|
}
|
|
|
|
function decodeUTF8(string) {
|
|
return decodeURIComponent(escape(string));
|
|
}
|
|
|
|
function getString(bytes) {
|
|
var i, str = "";
|
|
for (i = 0; i < bytes.length; i++)
|
|
str += String.fromCharCode(bytes[i]);
|
|
return str;
|
|
}
|
|
|
|
function getDate(timeRaw) {
|
|
var date = (timeRaw & 0xffff0000) >> 16, time = timeRaw & 0x0000ffff;
|
|
try {
|
|
return new Date(1980 + ((date & 0xFE00) >> 9), ((date & 0x01E0) >> 5) - 1, date & 0x001F, (time & 0xF800) >> 11, (time & 0x07E0) >> 5,
|
|
(time & 0x001F) * 2, 0);
|
|
} catch (e) {
|
|
}
|
|
}
|
|
|
|
function readCommonHeader(entry, data, index, centralDirectory, onerror) {
|
|
entry.version = data.view.getUint16(index, true);
|
|
entry.bitFlag = data.view.getUint16(index + 2, true);
|
|
entry.compressionMethod = data.view.getUint16(index + 4, true);
|
|
entry.lastModDateRaw = data.view.getUint32(index + 6, true);
|
|
entry.lastModDate = getDate(entry.lastModDateRaw);
|
|
if ((entry.bitFlag & 0x01) === 0x01) {
|
|
onerror(ERR_ENCRYPTED);
|
|
return;
|
|
}
|
|
if (centralDirectory || (entry.bitFlag & 0x0008) != 0x0008) {
|
|
entry.crc32 = data.view.getUint32(index + 10, true);
|
|
entry.compressedSize = data.view.getUint32(index + 14, true);
|
|
entry.uncompressedSize = data.view.getUint32(index + 18, true);
|
|
}
|
|
if (entry.compressedSize === 0xFFFFFFFF || entry.uncompressedSize === 0xFFFFFFFF) {
|
|
onerror(ERR_ZIP64);
|
|
return;
|
|
}
|
|
entry.filenameLength = data.view.getUint16(index + 22, true);
|
|
entry.extraFieldLength = data.view.getUint16(index + 24, true);
|
|
}
|
|
|
|
function createZipReader(reader, callback, onerror) {
|
|
var inflateSN = 0;
|
|
|
|
function Entry() {
|
|
}
|
|
|
|
Entry.prototype.getData = function(writer, onend, onprogress, checkCrc32) {
|
|
var that = this;
|
|
|
|
function testCrc32(crc32) {
|
|
var dataCrc32 = getDataHelper(4);
|
|
dataCrc32.view.setUint32(0, crc32);
|
|
return that.crc32 == dataCrc32.view.getUint32(0);
|
|
}
|
|
|
|
function getWriterData(uncompressedSize, crc32) {
|
|
if (checkCrc32 && !testCrc32(crc32))
|
|
onerror(ERR_CRC);
|
|
else
|
|
writer.getData(function(data) {
|
|
onend(data);
|
|
});
|
|
}
|
|
|
|
function onreaderror(err) {
|
|
onerror(err || ERR_READ_DATA);
|
|
}
|
|
|
|
function onwriteerror(err) {
|
|
onerror(err || ERR_WRITE_DATA);
|
|
}
|
|
|
|
reader.readUint8Array(that.offset, 30, function(bytes) {
|
|
var data = getDataHelper(bytes.length, bytes), dataOffset;
|
|
if (data.view.getUint32(0) != 0x504b0304) {
|
|
onerror(ERR_BAD_FORMAT);
|
|
return;
|
|
}
|
|
readCommonHeader(that, data, 4, false, onerror);
|
|
dataOffset = that.offset + 30 + that.filenameLength + that.extraFieldLength;
|
|
writer.init(function() {
|
|
if (that.compressionMethod === 0)
|
|
copy(that._worker, inflateSN++, reader, writer, dataOffset, that.compressedSize, checkCrc32, getWriterData, onprogress, onreaderror, onwriteerror);
|
|
else
|
|
inflate(that._worker, inflateSN++, reader, writer, dataOffset, that.compressedSize, checkCrc32, getWriterData, onprogress, onreaderror, onwriteerror);
|
|
}, onwriteerror);
|
|
}, onreaderror);
|
|
};
|
|
|
|
function seekEOCDR(eocdrCallback) {
|
|
// "End of central directory record" is the last part of a zip archive, and is at least 22 bytes long.
|
|
// Zip file comment is the last part of EOCDR and has max length of 64KB,
|
|
// so we only have to search the last 64K + 22 bytes of a archive for EOCDR signature (0x06054b50).
|
|
var EOCDR_MIN = 22;
|
|
if (reader.size < EOCDR_MIN) {
|
|
onerror(ERR_BAD_FORMAT);
|
|
return;
|
|
}
|
|
var ZIP_COMMENT_MAX = 256 * 256, EOCDR_MAX = EOCDR_MIN + ZIP_COMMENT_MAX;
|
|
|
|
// In most cases, the EOCDR is EOCDR_MIN bytes long
|
|
doSeek(EOCDR_MIN, function() {
|
|
// If not found, try within EOCDR_MAX bytes
|
|
doSeek(Math.min(EOCDR_MAX, reader.size), function() {
|
|
onerror(ERR_BAD_FORMAT);
|
|
});
|
|
});
|
|
|
|
// seek last length bytes of file for EOCDR
|
|
function doSeek(length, eocdrNotFoundCallback) {
|
|
reader.readUint8Array(reader.size - length, length, function(bytes) {
|
|
for (var i = bytes.length - EOCDR_MIN; i >= 0; i--) {
|
|
if (bytes[i] === 0x50 && bytes[i + 1] === 0x4b && bytes[i + 2] === 0x05 && bytes[i + 3] === 0x06) {
|
|
eocdrCallback(new DataView(bytes.buffer, i, EOCDR_MIN));
|
|
return;
|
|
}
|
|
}
|
|
eocdrNotFoundCallback();
|
|
}, function() {
|
|
onerror(ERR_READ);
|
|
});
|
|
}
|
|
}
|
|
|
|
var zipReader = {
|
|
getEntries : function(callback) {
|
|
var worker = this._worker;
|
|
// look for End of central directory record
|
|
seekEOCDR(function(dataView) {
|
|
var datalength, fileslength;
|
|
datalength = dataView.getUint32(16, true);
|
|
fileslength = dataView.getUint16(8, true);
|
|
if (datalength < 0 || datalength >= reader.size) {
|
|
onerror(ERR_BAD_FORMAT);
|
|
return;
|
|
}
|
|
reader.readUint8Array(datalength, reader.size - datalength, function(bytes) {
|
|
var i, index = 0, entries = [], entry, filename, comment, data = getDataHelper(bytes.length, bytes);
|
|
for (i = 0; i < fileslength; i++) {
|
|
entry = new Entry();
|
|
entry._worker = worker;
|
|
if (data.view.getUint32(index) != 0x504b0102) {
|
|
onerror(ERR_BAD_FORMAT);
|
|
return;
|
|
}
|
|
readCommonHeader(entry, data, index + 6, true, onerror);
|
|
entry.commentLength = data.view.getUint16(index + 32, true);
|
|
entry.directory = ((data.view.getUint8(index + 38) & 0x10) == 0x10);
|
|
entry.offset = data.view.getUint32(index + 42, true);
|
|
filename = getString(data.array.subarray(index + 46, index + 46 + entry.filenameLength));
|
|
entry.filename = ((entry.bitFlag & 0x0800) === 0x0800) ? decodeUTF8(filename) : decodeASCII(filename);
|
|
if (!entry.directory && entry.filename.charAt(entry.filename.length - 1) == "/")
|
|
entry.directory = true;
|
|
comment = getString(data.array.subarray(index + 46 + entry.filenameLength + entry.extraFieldLength, index + 46
|
|
+ entry.filenameLength + entry.extraFieldLength + entry.commentLength));
|
|
entry.comment = ((entry.bitFlag & 0x0800) === 0x0800) ? decodeUTF8(comment) : decodeASCII(comment);
|
|
entries.push(entry);
|
|
index += 46 + entry.filenameLength + entry.extraFieldLength + entry.commentLength;
|
|
}
|
|
callback(entries);
|
|
}, function() {
|
|
onerror(ERR_READ);
|
|
});
|
|
});
|
|
},
|
|
close : function(callback) {
|
|
if (this._worker) {
|
|
this._worker.terminate();
|
|
this._worker = null;
|
|
}
|
|
if (callback)
|
|
callback();
|
|
},
|
|
_worker: null
|
|
};
|
|
|
|
if (!obj.zip.useWebWorkers)
|
|
callback(zipReader);
|
|
else {
|
|
createWorker('inflater',
|
|
function(worker) {
|
|
zipReader._worker = worker;
|
|
callback(zipReader);
|
|
},
|
|
function(err) {
|
|
onerror(err);
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
// ZipWriter
|
|
|
|
function encodeUTF8(string) {
|
|
return unescape(encodeURIComponent(string));
|
|
}
|
|
|
|
function getBytes(str) {
|
|
var i, array = [];
|
|
for (i = 0; i < str.length; i++)
|
|
array.push(str.charCodeAt(i));
|
|
return array;
|
|
}
|
|
|
|
function createZipWriter(writer, callback, onerror, dontDeflate) {
|
|
var files = {}, filenames = [], datalength = 0;
|
|
var deflateSN = 0;
|
|
|
|
function onwriteerror(err) {
|
|
onerror(err || ERR_WRITE);
|
|
}
|
|
|
|
function onreaderror(err) {
|
|
onerror(err || ERR_READ_DATA);
|
|
}
|
|
|
|
var zipWriter = {
|
|
add : function(name, reader, onend, onprogress, options) {
|
|
var header, filename, date;
|
|
var worker = this._worker;
|
|
|
|
function writeHeader(callback) {
|
|
var data;
|
|
date = options.lastModDate || new Date();
|
|
header = getDataHelper(26);
|
|
files[name] = {
|
|
headerArray : header.array,
|
|
directory : options.directory,
|
|
filename : filename,
|
|
offset : datalength,
|
|
comment : getBytes(encodeUTF8(options.comment || ""))
|
|
};
|
|
header.view.setUint32(0, 0x14000808);
|
|
if (options.version)
|
|
header.view.setUint8(0, options.version);
|
|
if (!dontDeflate && options.level !== 0 && !options.directory)
|
|
header.view.setUint16(4, 0x0800);
|
|
header.view.setUint16(6, (((date.getHours() << 6) | date.getMinutes()) << 5) | date.getSeconds() / 2, true);
|
|
header.view.setUint16(8, ((((date.getFullYear() - 1980) << 4) | (date.getMonth() + 1)) << 5) | date.getDate(), true);
|
|
header.view.setUint16(22, filename.length, true);
|
|
data = getDataHelper(30 + filename.length);
|
|
data.view.setUint32(0, 0x504b0304);
|
|
data.array.set(header.array, 4);
|
|
data.array.set(filename, 30);
|
|
datalength += data.array.length;
|
|
writer.writeUint8Array(data.array, callback, onwriteerror);
|
|
}
|
|
|
|
function writeFooter(compressedLength, crc32) {
|
|
var footer = getDataHelper(16);
|
|
datalength += compressedLength || 0;
|
|
footer.view.setUint32(0, 0x504b0708);
|
|
if (typeof crc32 != "undefined") {
|
|
header.view.setUint32(10, crc32, true);
|
|
footer.view.setUint32(4, crc32, true);
|
|
}
|
|
if (reader) {
|
|
footer.view.setUint32(8, compressedLength, true);
|
|
header.view.setUint32(14, compressedLength, true);
|
|
footer.view.setUint32(12, reader.size, true);
|
|
header.view.setUint32(18, reader.size, true);
|
|
}
|
|
writer.writeUint8Array(footer.array, function() {
|
|
datalength += 16;
|
|
onend();
|
|
}, onwriteerror);
|
|
}
|
|
|
|
function writeFile() {
|
|
options = options || {};
|
|
name = name.trim();
|
|
if (options.directory && name.charAt(name.length - 1) != "/")
|
|
name += "/";
|
|
if (files.hasOwnProperty(name)) {
|
|
onerror(ERR_DUPLICATED_NAME);
|
|
return;
|
|
}
|
|
filename = getBytes(encodeUTF8(name));
|
|
filenames.push(name);
|
|
writeHeader(function() {
|
|
if (reader)
|
|
if (dontDeflate || options.level === 0)
|
|
copy(worker, deflateSN++, reader, writer, 0, reader.size, true, writeFooter, onprogress, onreaderror, onwriteerror);
|
|
else
|
|
deflate(worker, deflateSN++, reader, writer, options.level, writeFooter, onprogress, onreaderror, onwriteerror);
|
|
else
|
|
writeFooter();
|
|
}, onwriteerror);
|
|
}
|
|
|
|
if (reader)
|
|
reader.init(writeFile, onreaderror);
|
|
else
|
|
writeFile();
|
|
},
|
|
close : function(callback) {
|
|
if (this._worker) {
|
|
this._worker.terminate();
|
|
this._worker = null;
|
|
}
|
|
|
|
var data, length = 0, index = 0, indexFilename, file;
|
|
for (indexFilename = 0; indexFilename < filenames.length; indexFilename++) {
|
|
file = files[filenames[indexFilename]];
|
|
length += 46 + file.filename.length + file.comment.length;
|
|
}
|
|
data = getDataHelper(length + 22);
|
|
for (indexFilename = 0; indexFilename < filenames.length; indexFilename++) {
|
|
file = files[filenames[indexFilename]];
|
|
data.view.setUint32(index, 0x504b0102);
|
|
data.view.setUint16(index + 4, 0x1400);
|
|
data.array.set(file.headerArray, index + 6);
|
|
data.view.setUint16(index + 32, file.comment.length, true);
|
|
if (file.directory)
|
|
data.view.setUint8(index + 38, 0x10);
|
|
data.view.setUint32(index + 42, file.offset, true);
|
|
data.array.set(file.filename, index + 46);
|
|
data.array.set(file.comment, index + 46 + file.filename.length);
|
|
index += 46 + file.filename.length + file.comment.length;
|
|
}
|
|
data.view.setUint32(index, 0x504b0506);
|
|
data.view.setUint16(index + 8, filenames.length, true);
|
|
data.view.setUint16(index + 10, filenames.length, true);
|
|
data.view.setUint32(index + 12, length, true);
|
|
data.view.setUint32(index + 16, datalength, true);
|
|
writer.writeUint8Array(data.array, function() {
|
|
writer.getData(callback);
|
|
}, onwriteerror);
|
|
},
|
|
_worker: null
|
|
};
|
|
|
|
if (!obj.zip.useWebWorkers)
|
|
callback(zipWriter);
|
|
else {
|
|
createWorker('deflater',
|
|
function(worker) {
|
|
zipWriter._worker = worker;
|
|
callback(zipWriter);
|
|
},
|
|
function(err) {
|
|
onerror(err);
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
function resolveURLs(urls) {
|
|
var a = document.createElement('a');
|
|
return urls.map(function(url) {
|
|
a.href = url;
|
|
return a.href;
|
|
});
|
|
}
|
|
|
|
var DEFAULT_WORKER_SCRIPTS = {
|
|
deflater: ['z-worker.js', 'deflate.js'],
|
|
inflater: ['z-worker.js', 'inflate.js']
|
|
};
|
|
function createWorker(type, callback, onerror) {
|
|
if (obj.zip.workerScripts !== null && obj.zip.workerScriptsPath !== null) {
|
|
onerror(new Error('Either zip.workerScripts or zip.workerScriptsPath may be set, not both.'));
|
|
return;
|
|
}
|
|
var scripts;
|
|
if (obj.zip.workerScripts) {
|
|
scripts = obj.zip.workerScripts[type];
|
|
if (!Array.isArray(scripts)) {
|
|
onerror(new Error('zip.workerScripts.' + type + ' is not an array!'));
|
|
return;
|
|
}
|
|
scripts = resolveURLs(scripts);
|
|
} else {
|
|
scripts = DEFAULT_WORKER_SCRIPTS[type].slice(0);
|
|
scripts[0] = (obj.zip.workerScriptsPath || '') + scripts[0];
|
|
}
|
|
var worker = new Worker(scripts[0]);
|
|
// record total consumed time by inflater/deflater/crc32 in this worker
|
|
worker.codecTime = worker.crcTime = 0;
|
|
worker.postMessage({ type: 'importScripts', scripts: scripts.slice(1) });
|
|
worker.addEventListener('message', onmessage);
|
|
function onmessage(ev) {
|
|
var msg = ev.data;
|
|
if (msg.error) {
|
|
worker.terminate(); // should before onerror(), because onerror() may throw.
|
|
onerror(msg.error);
|
|
return;
|
|
}
|
|
if (msg.type === 'importScripts') {
|
|
worker.removeEventListener('message', onmessage);
|
|
worker.removeEventListener('error', errorHandler);
|
|
callback(worker);
|
|
}
|
|
}
|
|
// catch entry script loading error and other unhandled errors
|
|
worker.addEventListener('error', errorHandler);
|
|
function errorHandler(err) {
|
|
worker.terminate();
|
|
onerror(err);
|
|
}
|
|
}
|
|
|
|
function onerror_default(error) {
|
|
console.error(error);
|
|
}
|
|
obj.zip = {
|
|
Reader : Reader,
|
|
Writer : Writer,
|
|
BlobReader : BlobReader,
|
|
Data64URIReader : Data64URIReader,
|
|
TextReader : TextReader,
|
|
BlobWriter : BlobWriter,
|
|
Data64URIWriter : Data64URIWriter,
|
|
TextWriter : TextWriter,
|
|
createReader : function(reader, callback, onerror) {
|
|
onerror = onerror || onerror_default;
|
|
|
|
reader.init(function() {
|
|
createZipReader(reader, callback, onerror);
|
|
}, onerror);
|
|
},
|
|
createWriter : function(writer, callback, onerror, dontDeflate) {
|
|
onerror = onerror || onerror_default;
|
|
dontDeflate = !!dontDeflate;
|
|
|
|
writer.init(function() {
|
|
createZipWriter(writer, callback, onerror, dontDeflate);
|
|
}, onerror);
|
|
},
|
|
useWebWorkers : true,
|
|
/**
|
|
* Directory containing the default worker scripts (z-worker.js, deflate.js, and inflate.js), relative to current base url.
|
|
* E.g.: zip.workerScripts = './';
|
|
*/
|
|
workerScriptsPath : null,
|
|
/**
|
|
* Advanced option to control which scripts are loaded in the Web worker. If this option is specified, then workerScriptsPath must not be set.
|
|
* workerScripts.deflater/workerScripts.inflater should be arrays of urls to scripts for deflater/inflater, respectively.
|
|
* Scripts in the array are executed in order, and the first one should be z-worker.js, which is used to start the worker.
|
|
* All urls are relative to current base url.
|
|
* E.g.:
|
|
* zip.workerScripts = {
|
|
* deflater: ['z-worker.js', 'deflate.js'],
|
|
* inflater: ['z-worker.js', 'inflate.js']
|
|
* };
|
|
*/
|
|
workerScripts : null,
|
|
};
|
|
|
|
})(this);
|