mirror of
https://github.com/webxoss/wixoss-fetch.git
synced 2025-04-05 00:27:15 +02:00
541 lines
15 KiB
JavaScript
541 lines
15 KiB
JavaScript
/*
|
|
Copyright (c) 2013 Gildas Lormeau. All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the distribution.
|
|
|
|
3. The names of the authors may not be used to endorse or promote products
|
|
derived from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
|
|
INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
|
|
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
(function() {
|
|
"use strict";
|
|
|
|
var CHUNK_SIZE = 512 * 1024;
|
|
|
|
var TextWriter = zip.TextWriter, //
|
|
BlobWriter = zip.BlobWriter, //
|
|
Data64URIWriter = zip.Data64URIWriter, //
|
|
Reader = zip.Reader, //
|
|
TextReader = zip.TextReader, //
|
|
BlobReader = zip.BlobReader, //
|
|
Data64URIReader = zip.Data64URIReader, //
|
|
createReader = zip.createReader, //
|
|
createWriter = zip.createWriter;
|
|
|
|
function ZipBlobReader(entry) {
|
|
var that = this, blobReader;
|
|
|
|
function init(callback) {
|
|
that.size = entry.uncompressedSize;
|
|
callback();
|
|
}
|
|
|
|
function getData(callback) {
|
|
if (that.data)
|
|
callback();
|
|
else
|
|
entry.getData(new BlobWriter(), function(data) {
|
|
that.data = data;
|
|
blobReader = new BlobReader(data);
|
|
callback();
|
|
}, null, that.checkCrc32);
|
|
}
|
|
|
|
function readUint8Array(index, length, callback, onerror) {
|
|
getData(function() {
|
|
blobReader.readUint8Array(index, length, callback, onerror);
|
|
}, onerror);
|
|
}
|
|
|
|
that.size = 0;
|
|
that.init = init;
|
|
that.readUint8Array = readUint8Array;
|
|
}
|
|
ZipBlobReader.prototype = new Reader();
|
|
ZipBlobReader.prototype.constructor = ZipBlobReader;
|
|
ZipBlobReader.prototype.checkCrc32 = false;
|
|
|
|
function getTotalSize(entry) {
|
|
var size = 0;
|
|
|
|
function process(entry) {
|
|
size += entry.uncompressedSize || 0;
|
|
entry.children.forEach(process);
|
|
}
|
|
|
|
process(entry);
|
|
return size;
|
|
}
|
|
|
|
function initReaders(entry, onend, onerror) {
|
|
var index = 0;
|
|
|
|
function next() {
|
|
index++;
|
|
if (index < entry.children.length)
|
|
process(entry.children[index]);
|
|
else
|
|
onend();
|
|
}
|
|
|
|
function process(child) {
|
|
if (child.directory)
|
|
initReaders(child, next, onerror);
|
|
else {
|
|
child.reader = new child.Reader(child.data, onerror);
|
|
child.reader.init(function() {
|
|
child.uncompressedSize = child.reader.size;
|
|
next();
|
|
});
|
|
}
|
|
}
|
|
|
|
if (entry.children.length)
|
|
process(entry.children[index]);
|
|
else
|
|
onend();
|
|
}
|
|
|
|
function detach(entry) {
|
|
var children = entry.parent.children;
|
|
children.forEach(function(child, index) {
|
|
if (child.id == entry.id)
|
|
children.splice(index, 1);
|
|
});
|
|
}
|
|
|
|
function exportZip(zipWriter, entry, onend, onprogress, totalSize) {
|
|
var currentIndex = 0;
|
|
|
|
function process(zipWriter, entry, onend, onprogress, totalSize) {
|
|
var childIndex = 0;
|
|
|
|
function exportChild() {
|
|
var child = entry.children[childIndex];
|
|
if (child)
|
|
zipWriter.add(child.getFullname(), child.reader, function() {
|
|
currentIndex += child.uncompressedSize || 0;
|
|
process(zipWriter, child, function() {
|
|
childIndex++;
|
|
exportChild();
|
|
}, onprogress, totalSize);
|
|
}, function(index) {
|
|
if (onprogress)
|
|
onprogress(currentIndex + index, totalSize);
|
|
}, {
|
|
directory : child.directory,
|
|
version : child.zipVersion
|
|
});
|
|
else
|
|
onend();
|
|
}
|
|
|
|
exportChild();
|
|
}
|
|
|
|
process(zipWriter, entry, onend, onprogress, totalSize);
|
|
}
|
|
|
|
function addFileEntry(zipEntry, fileEntry, onend, onerror) {
|
|
function getChildren(fileEntry, callback) {
|
|
if (fileEntry.isDirectory)
|
|
fileEntry.createReader().readEntries(callback);
|
|
if (fileEntry.isFile)
|
|
callback([]);
|
|
}
|
|
|
|
function process(zipEntry, fileEntry, onend) {
|
|
getChildren(fileEntry, function(children) {
|
|
var childIndex = 0;
|
|
|
|
function addChild(child) {
|
|
function nextChild(childFileEntry) {
|
|
process(childFileEntry, child, function() {
|
|
childIndex++;
|
|
processChild();
|
|
});
|
|
}
|
|
|
|
if (child.isDirectory)
|
|
nextChild(zipEntry.addDirectory(child.name));
|
|
if (child.isFile)
|
|
child.file(function(file) {
|
|
var childZipEntry = zipEntry.addBlob(child.name, file);
|
|
childZipEntry.uncompressedSize = file.size;
|
|
nextChild(childZipEntry);
|
|
}, onerror);
|
|
}
|
|
|
|
function processChild() {
|
|
var child = children[childIndex];
|
|
if (child)
|
|
addChild(child);
|
|
else
|
|
onend();
|
|
}
|
|
|
|
processChild();
|
|
});
|
|
}
|
|
|
|
if (fileEntry.isDirectory)
|
|
process(zipEntry, fileEntry, onend);
|
|
else
|
|
fileEntry.file(function(file) {
|
|
zipEntry.addBlob(fileEntry.name, file);
|
|
onend();
|
|
}, onerror);
|
|
}
|
|
|
|
function getFileEntry(fileEntry, entry, onend, onprogress, onerror, totalSize, checkCrc32) {
|
|
var currentIndex = 0;
|
|
|
|
function process(fileEntry, entry, onend, onprogress, onerror, totalSize) {
|
|
var childIndex = 0;
|
|
|
|
function addChild(child) {
|
|
function nextChild(childFileEntry) {
|
|
currentIndex += child.uncompressedSize || 0;
|
|
process(childFileEntry, child, function() {
|
|
childIndex++;
|
|
processChild();
|
|
}, onprogress, onerror, totalSize);
|
|
}
|
|
|
|
if (child.directory)
|
|
fileEntry.getDirectory(child.name, {
|
|
create : true
|
|
}, nextChild, onerror);
|
|
else
|
|
fileEntry.getFile(child.name, {
|
|
create : true
|
|
}, function(file) {
|
|
child.getData(new zip.FileWriter(file, zip.getMimeType(child.name)), nextChild, function(index) {
|
|
if (onprogress)
|
|
onprogress(currentIndex + index, totalSize);
|
|
}, checkCrc32);
|
|
}, onerror);
|
|
}
|
|
|
|
function processChild() {
|
|
var child = entry.children[childIndex];
|
|
if (child)
|
|
addChild(child);
|
|
else
|
|
onend();
|
|
}
|
|
|
|
processChild();
|
|
}
|
|
|
|
if (entry.directory)
|
|
process(fileEntry, entry, onend, onprogress, onerror, totalSize);
|
|
else
|
|
entry.getData(new zip.FileWriter(fileEntry, zip.getMimeType(entry.name)), onend, onprogress, checkCrc32);
|
|
}
|
|
|
|
function resetFS(fs) {
|
|
fs.entries = [];
|
|
fs.root = new ZipDirectoryEntry(fs);
|
|
}
|
|
|
|
function bufferedCopy(reader, writer, onend, onprogress, onerror) {
|
|
var chunkIndex = 0;
|
|
|
|
function stepCopy() {
|
|
var index = chunkIndex * CHUNK_SIZE;
|
|
if (onprogress)
|
|
onprogress(index, reader.size);
|
|
if (index < reader.size)
|
|
reader.readUint8Array(index, Math.min(CHUNK_SIZE, reader.size - index), function(array) {
|
|
writer.writeUint8Array(new Uint8Array(array), function() {
|
|
chunkIndex++;
|
|
stepCopy();
|
|
});
|
|
}, onerror);
|
|
else
|
|
writer.getData(onend);
|
|
}
|
|
|
|
stepCopy();
|
|
}
|
|
|
|
function addChild(parent, name, params, directory) {
|
|
if (parent.directory)
|
|
return directory ? new ZipDirectoryEntry(parent.fs, name, params, parent) : new ZipFileEntry(parent.fs, name, params, parent);
|
|
else
|
|
throw "Parent entry is not a directory.";
|
|
}
|
|
|
|
function ZipEntry() {
|
|
}
|
|
|
|
ZipEntry.prototype = {
|
|
init : function(fs, name, params, parent) {
|
|
var that = this;
|
|
if (fs.root && parent && parent.getChildByName(name))
|
|
throw "Entry filename already exists.";
|
|
if (!params)
|
|
params = {};
|
|
that.fs = fs;
|
|
that.name = name;
|
|
that.id = fs.entries.length;
|
|
that.parent = parent;
|
|
that.children = [];
|
|
that.zipVersion = params.zipVersion || 0x14;
|
|
that.uncompressedSize = 0;
|
|
fs.entries.push(that);
|
|
if (parent)
|
|
that.parent.children.push(that);
|
|
},
|
|
getFileEntry : function(fileEntry, onend, onprogress, onerror, checkCrc32) {
|
|
var that = this;
|
|
initReaders(that, function() {
|
|
getFileEntry(fileEntry, that, onend, onprogress, onerror, getTotalSize(that), checkCrc32);
|
|
}, onerror);
|
|
},
|
|
moveTo : function(target) {
|
|
var that = this;
|
|
if (target.directory) {
|
|
if (!target.isDescendantOf(that)) {
|
|
if (that != target) {
|
|
if (target.getChildByName(that.name))
|
|
throw "Entry filename already exists.";
|
|
detach(that);
|
|
that.parent = target;
|
|
target.children.push(that);
|
|
}
|
|
} else
|
|
throw "Entry is a ancestor of target entry.";
|
|
} else
|
|
throw "Target entry is not a directory.";
|
|
},
|
|
getFullname : function() {
|
|
var that = this, fullname = that.name, entry = that.parent;
|
|
while (entry) {
|
|
fullname = (entry.name ? entry.name + "/" : "") + fullname;
|
|
entry = entry.parent;
|
|
}
|
|
return fullname;
|
|
},
|
|
isDescendantOf : function(ancestor) {
|
|
var entry = this.parent;
|
|
while (entry && entry.id != ancestor.id)
|
|
entry = entry.parent;
|
|
return !!entry;
|
|
}
|
|
};
|
|
ZipEntry.prototype.constructor = ZipEntry;
|
|
|
|
var ZipFileEntryProto;
|
|
|
|
function ZipFileEntry(fs, name, params, parent) {
|
|
var that = this;
|
|
ZipEntry.prototype.init.call(that, fs, name, params, parent);
|
|
that.Reader = params.Reader;
|
|
that.Writer = params.Writer;
|
|
that.data = params.data;
|
|
if (params.getData) {
|
|
that.getData = params.getData;
|
|
}
|
|
}
|
|
|
|
ZipFileEntry.prototype = ZipFileEntryProto = new ZipEntry();
|
|
ZipFileEntryProto.constructor = ZipFileEntry;
|
|
ZipFileEntryProto.getData = function(writer, onend, onprogress, onerror) {
|
|
var that = this;
|
|
if (!writer || (writer.constructor == that.Writer && that.data))
|
|
onend(that.data);
|
|
else {
|
|
if (!that.reader)
|
|
that.reader = new that.Reader(that.data, onerror);
|
|
that.reader.init(function() {
|
|
writer.init(function() {
|
|
bufferedCopy(that.reader, writer, onend, onprogress, onerror);
|
|
}, onerror);
|
|
});
|
|
}
|
|
};
|
|
|
|
ZipFileEntryProto.getText = function(onend, onprogress, checkCrc32, encoding) {
|
|
this.getData(new TextWriter(encoding), onend, onprogress, checkCrc32);
|
|
};
|
|
ZipFileEntryProto.getBlob = function(mimeType, onend, onprogress, checkCrc32) {
|
|
this.getData(new BlobWriter(mimeType), onend, onprogress, checkCrc32);
|
|
};
|
|
ZipFileEntryProto.getData64URI = function(mimeType, onend, onprogress, checkCrc32) {
|
|
this.getData(new Data64URIWriter(mimeType), onend, onprogress, checkCrc32);
|
|
};
|
|
|
|
var ZipDirectoryEntryProto;
|
|
|
|
function ZipDirectoryEntry(fs, name, params, parent) {
|
|
var that = this;
|
|
ZipEntry.prototype.init.call(that, fs, name, params, parent);
|
|
that.directory = true;
|
|
}
|
|
|
|
ZipDirectoryEntry.prototype = ZipDirectoryEntryProto = new ZipEntry();
|
|
ZipDirectoryEntryProto.constructor = ZipDirectoryEntry;
|
|
ZipDirectoryEntryProto.addDirectory = function(name) {
|
|
return addChild(this, name, null, true);
|
|
};
|
|
ZipDirectoryEntryProto.addText = function(name, text) {
|
|
return addChild(this, name, {
|
|
data : text,
|
|
Reader : TextReader,
|
|
Writer : TextWriter
|
|
});
|
|
};
|
|
ZipDirectoryEntryProto.addBlob = function(name, blob) {
|
|
return addChild(this, name, {
|
|
data : blob,
|
|
Reader : BlobReader,
|
|
Writer : BlobWriter
|
|
});
|
|
};
|
|
ZipDirectoryEntryProto.addData64URI = function(name, dataURI) {
|
|
return addChild(this, name, {
|
|
data : dataURI,
|
|
Reader : Data64URIReader,
|
|
Writer : Data64URIWriter
|
|
});
|
|
};
|
|
ZipDirectoryEntryProto.addFileEntry = function(fileEntry, onend, onerror) {
|
|
addFileEntry(this, fileEntry, onend, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.addData = function(name, params) {
|
|
return addChild(this, name, params);
|
|
};
|
|
ZipDirectoryEntryProto.importBlob = function(blob, onend, onerror) {
|
|
this.importZip(new BlobReader(blob), onend, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.importText = function(text, onend, onerror) {
|
|
this.importZip(new TextReader(text), onend, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.importData64URI = function(dataURI, onend, onerror) {
|
|
this.importZip(new Data64URIReader(dataURI), onend, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.exportBlob = function(onend, onprogress, onerror) {
|
|
this.exportZip(new BlobWriter("application/zip"), onend, onprogress, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.exportText = function(onend, onprogress, onerror) {
|
|
this.exportZip(new TextWriter(), onend, onprogress, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.exportFileEntry = function(fileEntry, onend, onprogress, onerror) {
|
|
this.exportZip(new zip.FileWriter(fileEntry, "application/zip"), onend, onprogress, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.exportData64URI = function(onend, onprogress, onerror) {
|
|
this.exportZip(new Data64URIWriter("application/zip"), onend, onprogress, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.importZip = function(reader, onend, onerror) {
|
|
var that = this;
|
|
createReader(reader, function(zipReader) {
|
|
zipReader.getEntries(function(entries) {
|
|
entries.forEach(function(entry) {
|
|
var parent = that, path = entry.filename.split("/"), name = path.pop();
|
|
path.forEach(function(pathPart) {
|
|
parent = parent.getChildByName(pathPart) || new ZipDirectoryEntry(that.fs, pathPart, null, parent);
|
|
});
|
|
if (!entry.directory)
|
|
addChild(parent, name, {
|
|
data : entry,
|
|
Reader : ZipBlobReader
|
|
});
|
|
});
|
|
onend();
|
|
});
|
|
}, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.exportZip = function(writer, onend, onprogress, onerror) {
|
|
var that = this;
|
|
initReaders(that, function() {
|
|
createWriter(writer, function(zipWriter) {
|
|
exportZip(zipWriter, that, function() {
|
|
zipWriter.close(onend);
|
|
}, onprogress, getTotalSize(that));
|
|
}, onerror);
|
|
}, onerror);
|
|
};
|
|
ZipDirectoryEntryProto.getChildByName = function(name) {
|
|
var childIndex, child, that = this;
|
|
for (childIndex = 0; childIndex < that.children.length; childIndex++) {
|
|
child = that.children[childIndex];
|
|
if (child.name == name)
|
|
return child;
|
|
}
|
|
};
|
|
|
|
function FS() {
|
|
resetFS(this);
|
|
}
|
|
FS.prototype = {
|
|
remove : function(entry) {
|
|
detach(entry);
|
|
this.entries[entry.id] = null;
|
|
},
|
|
find : function(fullname) {
|
|
var index, path = fullname.split("/"), node = this.root;
|
|
for (index = 0; node && index < path.length; index++)
|
|
node = node.getChildByName(path[index]);
|
|
return node;
|
|
},
|
|
getById : function(id) {
|
|
return this.entries[id];
|
|
},
|
|
importBlob : function(blob, onend, onerror) {
|
|
resetFS(this);
|
|
this.root.importBlob(blob, onend, onerror);
|
|
},
|
|
importText : function(text, onend, onerror) {
|
|
resetFS(this);
|
|
this.root.importText(text, onend, onerror);
|
|
},
|
|
importData64URI : function(dataURI, onend, onerror) {
|
|
resetFS(this);
|
|
this.root.importData64URI(dataURI, onend, onerror);
|
|
},
|
|
exportBlob : function(onend, onprogress, onerror) {
|
|
this.root.exportBlob(onend, onprogress, onerror);
|
|
},
|
|
exportText : function(onend, onprogress, onerror) {
|
|
this.root.exportText(onend, onprogress, onerror);
|
|
},
|
|
exportFileEntry : function(fileEntry, onend, onprogress, onerror) {
|
|
this.root.exportFileEntry(fileEntry, onend, onprogress, onerror);
|
|
},
|
|
exportData64URI : function(onend, onprogress, onerror) {
|
|
this.root.exportData64URI(onend, onprogress, onerror);
|
|
}
|
|
};
|
|
|
|
zip.fs = {
|
|
FS : FS,
|
|
ZipDirectoryEntry : ZipDirectoryEntry,
|
|
ZipFileEntry : ZipFileEntry
|
|
};
|
|
|
|
zip.getMimeType = function() {
|
|
return "application/octet-stream";
|
|
};
|
|
|
|
})();
|