added zip support

libs/MarcFile.js

@@ -0,0 +1,266 @@
+/* MODDED VERSION OF MarcFile.js v20181020 - Marc Robledo 2014-2018 - http://www.marcrobledo.com/license */
+
+function MarcFile(source, onLoad){	
+	if(typeof source==='object' && source.files) /* get first file only if source is input with multiple files */
+		source=source.files[0];
+
+	this.littleEndian=false;
+	this.offset=0;
+	this._lastRead=null;
+
+	if(typeof source==='object' && source.name && source.size){ /* source is file */
+		if(typeof window.FileReader!=='function')
+			throw new Error('Incompatible Browser');
+
+		this.fileName=source.name;
+		this.fileType=source.type;
+		this.fileSize=source.size;
+
+		this._fileReader=new FileReader();
+		this._fileReader.marcFile=this;
+		this._fileReader.addEventListener('load',function(){
+			this.marcFile._u8array=new Uint8Array(this.result);
+			this.marcFile._dataView=new DataView(this.result);
+
+			if(onLoad)
+				onLoad.call();
+		},false);
+
+		this._fileReader.readAsArrayBuffer(source);
+
+
+
+	}else if(typeof source==='object' && typeof source.fileName==='string' && typeof source.littleEndian==='boolean'){ /* source is MarcFile */
+		this.fileName=source.fileName;
+		this.fileType=source.fileType;
+		this.fileSize=source.fileSize;
+
+		var ab=new ArrayBuffer(source);
+		this._u8array=new Uint8Array(this.fileType);
+		this._dataView=new DataView(this.fileType);
+		
+		source.copyToFile(this, 0);
+		if(onLoad)
+			onLoad.call();
+
+
+
+	}else if(typeof source==='object' && typeof source.byteLength==='number'){ /* source is ArrayBuffer or TypedArray */
+		this.fileName='file.bin';
+		this.fileType='application/octet-stream';
+		this.fileSize=source.byteLength;
+
+		if(typeof source.buffer !== 'undefined')
+			source=source.buffer;
+		this._u8array=new Uint8Array(source);
+		this._dataView=new DataView(source);
+
+		if(onLoad)
+			onLoad.call();
+
+
+
+	}else if(typeof source==='number'){ /* source is integer (new empty file) */
+		this.fileName='file.bin';
+		this.fileType='application/octet-stream';
+		this.fileSize=source;
+
+		var ab=new ArrayBuffer(source);
+		this._u8array=new Uint8Array(ab);
+		this._dataView=new DataView(ab);
+
+		if(onLoad)
+			onLoad.call();
+	}else{
+		throw new Error('Invalid source');
+	}
+}
+MarcFile.IS_MACHINE_LITTLE_ENDIAN=(function(){	/* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView#Endianness */
+	var buffer=new ArrayBuffer(2);
+	new DataView(buffer).setInt16(0, 256, true /* littleEndian */);
+	// Int16Array uses the platform's endianness.
+	return new Int16Array(buffer)[0] === 256;
+})();
+
+
+
+MarcFile.prototype.seek=function(offset){
+	this.offset=offset;
+}
+MarcFile.prototype.skip=function(nBytes){
+	this.offset+=nBytes;
+}
+MarcFile.prototype.isEOF=function(){
+	return !(this.offset<this.fileSize)
+}
+
+MarcFile.prototype.slice=function(offset, len){
+	len=len || (this.fileSize-offset);
+
+	var newFile;
+
+	if(typeof this._u8array.buffer.slice!=='undefined'){
+		newFile=new MarcFile(0);
+		newFile.fileSize=len;
+		newFile._u8array=new Uint8Array(this._u8array.buffer.slice(offset, offset+len));
+	}else{
+		newFile=new MarcFile(len);
+		this.copyToFile(newFile, offset, len, 0);
+	}
+	newFile.fileName=this.fileName;
+	newFile.fileType=this.fileType;
+	newFile.littleEndian=this.littleEndian;
+	return newFile;
+}
+
+
+MarcFile.prototype.copyToFile=function(target, offsetSource, len, offsetTarget){
+	if(typeof offsetTarget==='undefined')
+		offsetTarget=offsetSource;
+
+	len=len || (this.fileSize-offsetSource);
+
+	for(var i=0; i<len; i++){
+		target._u8array[offsetTarget+i]=this._u8array[offsetSource+i];
+	}
+}
+
+
+MarcFile.prototype.save=function(){
+	var blob;
+	try{
+		blob=new Blob([this._u8array],{type:this.fileType});
+	}catch(e){
+		//old browser, use BlobBuilder
+		window.BlobBuilder=window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder;
+		if(e.name==='InvalidStateError' && window.BlobBuilder){
+			var bb=new BlobBuilder();
+			bb.append(this._u8array.buffer);
+			blob=bb.getBlob(this.fileType);
+		}else{
+			throw new Error('Incompatible Browser');
+			return false;
+		}
+	}
+	saveAs(blob,this.fileName);
+}
+
+
+MarcFile.prototype.readU8=function(){
+	this._lastRead=this._u8array[this.offset];
+
+	this.offset++;
+	return this._lastRead
+}
+MarcFile.prototype.readU16=function(){
+	if(this.littleEndian)
+		this._lastRead=this._u8array[this.offset] + (this._u8array[this.offset+1] << 8);
+	else
+		this._lastRead=(this._u8array[this.offset] << 8) + this._u8array[this.offset+1];
+
+	this.offset+=2;
+	return this._lastRead >>> 0
+}
+MarcFile.prototype.readU24=function(){
+	if(this.littleEndian)
+		this._lastRead=this._u8array[this.offset] + (this._u8array[this.offset+1] << 8) + (this._u8array[this.offset+2] << 16);
+	else
+		this._lastRead=(this._u8array[this.offset] << 16) + (this._u8array[this.offset+1] << 8) + this._u8array[this.offset+2];
+
+	this.offset+=3;
+	return this._lastRead >>> 0
+}
+MarcFile.prototype.readU32=function(){
+	if(this.littleEndian)
+		this._lastRead=this._u8array[this.offset] + (this._u8array[this.offset+1] << 8) + (this._u8array[this.offset+2] << 16) + (this._u8array[this.offset+3] << 24);
+	else
+		this._lastRead=(this._u8array[this.offset] << 24) + (this._u8array[this.offset+1] << 16) + (this._u8array[this.offset+2] << 8) + this._u8array[this.offset+3];
+
+	this.offset+=4;
+	return this._lastRead >>> 0
+}
+
+
+
+MarcFile.prototype.readBytes=function(len){
+	this._lastRead=new Array(len);
+	for(var i=0; i<len; i++){
+		this._lastRead[i]=this._u8array[this.offset+i];
+	}
+
+	this.offset+=len;
+	return this._lastRead
+}
+
+MarcFile.prototype.readString=function(len){
+	this._lastRead='';
+	for(var i=0;i<len && (this.offset+i)<this.fileSize && this._u8array[this.offset+i]>0;i++)
+		this._lastRead=this._lastRead+String.fromCharCode(this._u8array[this.offset+i]);
+
+	this.offset+=len;
+	return this._lastRead
+}
+
+MarcFile.prototype.writeU8=function(u8){
+	this._u8array[this.offset]=u8;
+
+	this.offset++;
+}
+MarcFile.prototype.writeU16=function(u16){
+	if(this.littleEndian){
+		this._u8array[this.offset]=u16 & 0xff;
+		this._u8array[this.offset+1]=u16 >> 8;
+	}else{
+		this._u8array[this.offset]=u16 >> 8;
+		this._u8array[this.offset+1]=u16 & 0xff;
+	}
+
+	this.offset+=2;
+}
+MarcFile.prototype.writeU24=function(u24){
+	if(this.littleEndian){
+		this._u8array[this.offset]=u24 & 0x0000ff;
+		this._u8array[this.offset+1]=(u24 & 0x00ff00) >> 8;
+		this._u8array[this.offset+2]=(u24 & 0xff0000) >> 16;
+	}else{
+		this._u8array[this.offset]=(u24 & 0xff0000) >> 16;
+		this._u8array[this.offset+1]=(u24 & 0x00ff00) >> 8;
+		this._u8array[this.offset+2]=u24 & 0x0000ff;
+	}
+
+	this.offset+=3;
+}
+MarcFile.prototype.writeU32=function(u32){
+	if(this.littleEndian){
+		this._u8array[this.offset]=u32 & 0x000000ff;
+		this._u8array[this.offset+1]=(u32 & 0x0000ff00) >> 8;
+		this._u8array[this.offset+2]=(u32 & 0x00ff0000) >> 16;
+		this._u8array[this.offset+3]=(u32 & 0xff000000) >> 24;
+	}else{
+		this._u8array[this.offset]=(u32 & 0xff000000) >> 24;
+		this._u8array[this.offset+1]=(u32 & 0x00ff0000) >> 16;
+		this._u8array[this.offset+2]=(u32 & 0x0000ff00) >> 8;
+		this._u8array[this.offset+3]=u32 & 0x000000ff;
+	}
+
+	this.offset+=4;
+}
+
+
+MarcFile.prototype.writeBytes=function(a){
+	for(var i=0;i<a.length;i++)
+		this._u8array[this.offset+i]=a[i]
+
+	this.offset+=a.length;
+}
+
+MarcFile.prototype.writeString=function(str,len){
+	len=len || str.length;
+	for(var i=0;i<str.length && i<len;i++)
+		this._u8array[this.offset+i]=str.charCodeAt(i);
+
+	for(;i<len;i++)
+		this._u8array[this.offset+i]=0x00;
+
+	this.offset+=len;
+}

libs/z-worker.js

@@ -0,0 +1,2 @@
+/* jshint worker:true */
+!function(c){"use strict";if(c.zWorkerInitialized)throw new Error("z-worker.js should be run only once");c.zWorkerInitialized=!0,addEventListener("message",function(t){var e,r,c=t.data,n=c.type,s=c.sn,p=o[n];if(p)try{p(c)}catch(t){e={type:n,sn:s,error:(r=t,{message:r.message,stack:r.stack})},postMessage(e)}});var o={importScripts:function(t){t.scripts&&0<t.scripts.length&&importScripts.apply(void 0,t.scripts);postMessage({type:"importScripts"})},newTask:h,append:t,flush:t},f={};function h(t){var e=c[t.codecClass],r=t.sn;if(f[r])throw Error("duplicated sn");f[r]={codec:new e(t.options),crcInput:"input"===t.crcType,crcOutput:"output"===t.crcType,crc:new n},postMessage({type:"newTask",sn:r})}var l=c.performance?c.performance.now.bind(c.performance):Date.now;function t(t){var e=t.sn,r=t.type,c=t.data,n=f[e];!n&&t.codecClass&&(h(t),n=f[e]);var s,p="append"===r,o=l();if(p)try{s=n.codec.append(c,function(t){postMessage({type:"progress",sn:e,loaded:t})})}catch(t){throw delete f[e],t}else delete f[e],s=n.codec.flush();var a=l()-o;o=l(),c&&n.crcInput&&n.crc.append(c),s&&n.crcOutput&&n.crc.append(s);var i=l()-o,u={type:r,sn:e,codecTime:a,crcTime:i},d=[];s&&(u.data=s,d.push(s.buffer)),p||!n.crcInput&&!n.crcOutput||(u.crc=n.crc.get());try{postMessage(u,d)}catch(t){postMessage(u)}}function n(){this.crc=-1}function e(){}n.prototype.append=function(t){for(var e=0|this.crc,r=this.table,c=0,n=0|t.length;c<n;c++)e=e>>>8^r[255&(e^t[c])];this.crc=e},n.prototype.get=function(){return~this.crc},n.prototype.table=function(){var t,e,r,c=[];for(t=0;t<256;t++){for(r=t,e=0;e<8;e++)1&r?r=r>>>1^3988292384:r>>>=1;c[t]=r}return c}(),(c.NOOP=e).prototype.append=function(t,e){return t},e.prototype.flush=function(){}}(this);