META-INF.resources.bower_components.jszip.lib.generate.ZipFileWorker.min.js Maven / Gradle / Ivy

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The JWebSwing implementation for Data Tables
There is a newer version: 0.66.0.1
"use strict";var utils=require("../utils");var GenericWorker=require("../stream/GenericWorker");var utf8=require("../utf8");var crc32=require("../crc32");var signature=require("../signature");var decToHex=function(dec,bytes){var hex="",i;for(i=0;i>>8}return hex};var generateUnixExternalFileAttr=function(unixPermissions,isDir){var result=unixPermissions;if(!unixPermissions){result=isDir?16893:33204}return(result&65535)<<16};var generateDosExternalFileAttr=function(dosPermissions,isDir){return(dosPermissions||0)&63};var generateZipParts=function(streamInfo,streamedContent,streamingEnded,offset,platform,encodeFileName){var file=streamInfo["file"],compression=streamInfo["compression"],useCustomEncoding=encodeFileName!==utf8.utf8encode,encodedFileName=utils.transformTo("string",encodeFileName(file.name)),utfEncodedFileName=utils.transformTo("string",utf8.utf8encode(file.name)),comment=file.comment,encodedComment=utils.transformTo("string",encodeFileName(comment)),utfEncodedComment=utils.transformTo("string",utf8.utf8encode(comment)),useUTF8ForFileName=utfEncodedFileName.length!==file.name.length,useUTF8ForComment=utfEncodedComment.length!==comment.length,dosTime,dosDate,extraFields="",unicodePathExtraField="",unicodeCommentExtraField="",dir=file.dir,date=file.date;var dataInfo={crc32:0,compressedSize:0,uncompressedSize:0};if(!streamedContent||streamingEnded){dataInfo.crc32=streamInfo["crc32"];dataInfo.compressedSize=streamInfo["compressedSize"];dataInfo.uncompressedSize=streamInfo["uncompressedSize"]}var bitflag=0;if(streamedContent){bitflag|=8}if(!useCustomEncoding&&(useUTF8ForFileName||useUTF8ForComment)){bitflag|=2048}var extFileAttr=0;var versionMadeBy=0;if(dir){extFileAttr|=16}if(platform==="UNIX"){versionMadeBy=798;extFileAttr|=generateUnixExternalFileAttr(file.unixPermissions,dir)}else{versionMadeBy=20;extFileAttr|=generateDosExternalFileAttr(file.dosPermissions,dir)}dosTime=date.getUTCHours();dosTime=dosTime<<6;dosTime=dosTime|date.getUTCMinutes();dosTime=dosTime<<5;dosTime=dosTime|date.getUTCSeconds()/2;dosDate=date.getUTCFullYear()-1980;dosDate=dosDate<<4;dosDate=dosDate|date.getUTCMonth()+1;dosDate=dosDate<<5;dosDate=dosDate|date.getUTCDate();if(useUTF8ForFileName){unicodePathExtraField=decToHex(1,1)+decToHex(crc32(encodedFileName),4)+utfEncodedFileName;extraFields+="up"+decToHex(unicodePathExtraField.length,2)+unicodePathExtraField}if(useUTF8ForComment){unicodeCommentExtraField=decToHex(1,1)+decToHex(crc32(encodedComment),4)+utfEncodedComment;extraFields+="uc"+decToHex(unicodeCommentExtraField.length,2)+unicodeCommentExtraField}var header="";header+="\n\0";header+=decToHex(bitflag,2);header+=compression.magic;header+=decToHex(dosTime,2);header+=decToHex(dosDate,2);header+=decToHex(dataInfo.crc32,4);header+=decToHex(dataInfo.compressedSize,4);header+=decToHex(dataInfo.uncompressedSize,4);header+=decToHex(encodedFileName.length,2);header+=decToHex(extraFields.length,2);var fileRecord=signature.LOCAL_FILE_HEADER+header+encodedFileName+extraFields;var dirRecord=signature.CENTRAL_FILE_HEADER+decToHex(versionMadeBy,2)+header+decToHex(encodedComment.length,2)+"\0\0"+"\0\0"+decToHex(extFileAttr,4)+decToHex(offset,4)+encodedFileName+extraFields+encodedComment;return{fileRecord:fileRecord,dirRecord:dirRecord}};var generateCentralDirectoryEnd=function(entriesCount,centralDirLength,localDirLength,comment,encodeFileName){var dirEnd="";var encodedComment=utils.transformTo("string",encodeFileName(comment));dirEnd=signature.CENTRAL_DIRECTORY_END+"\0\0"+"\0\0"+decToHex(entriesCount,2)+decToHex(entriesCount,2)+decToHex(centralDirLength,4)+decToHex(localDirLength,4)+decToHex(encodedComment.length,2)+encodedComment;return dirEnd};var generateDataDescriptors=function(streamInfo){var descriptor="";descriptor=signature.DATA_DESCRIPTOR+decToHex(streamInfo["crc32"],4)+decToHex(streamInfo["compressedSize"],4)+decToHex(streamInfo["uncompressedSize"],4);return descriptor};function ZipFileWorker(streamFiles,comment,platform,encodeFileName){GenericWorker.call(this,"ZipFileWorker");this.bytesWritten=0;this.zipComment=comment;this.zipPlatform=platform;this.encodeFileName=encodeFileName;this.streamFiles=streamFiles;this.accumulate=false;this.contentBuffer=[];this.dirRecords=[];this.currentSourceOffset=0;this.entriesCount=0;this.currentFile=null;this._sources=[]}utils.inherits(ZipFileWorker,GenericWorker);ZipFileWorker.prototype.push=function(chunk){var currentFilePercent=chunk.meta.percent||0;var entriesCount=this.entriesCount;var remainingFiles=this._sources.length;if(this.accumulate){this.contentBuffer.push(chunk)}else{this.bytesWritten+=chunk.data.length;GenericWorker.prototype.push.call(this,{data:chunk.data,meta:{currentFile:this.currentFile,percent:entriesCount?(currentFilePercent+100*(entriesCount-remainingFiles-1))/entriesCount:100}})}};ZipFileWorker.prototype.openedSource=function(streamInfo){this.currentSourceOffset=this.bytesWritten;this.currentFile=streamInfo["file"].name;var streamedContent=this.streamFiles&&!streamInfo["file"].dir;if(streamedContent){var record=generateZipParts(streamInfo,streamedContent,false,this.currentSourceOffset,this.zipPlatform,this.encodeFileName);this.push({data:record.fileRecord,meta:{percent:0}})}else{this.accumulate=true}};ZipFileWorker.prototype.closedSource=function(streamInfo){this.accumulate=false;var streamedContent=this.streamFiles&&!streamInfo["file"].dir;var record=generateZipParts(streamInfo,streamedContent,true,this.currentSourceOffset,this.zipPlatform,this.encodeFileName);this.dirRecords.push(record.dirRecord);if(streamedContent){this.push({data:generateDataDescriptors(streamInfo),meta:{percent:100}})}else{this.push({data:record.fileRecord,meta:{percent:0}});while(this.contentBuffer.length){this.push(this.contentBuffer.shift())}}this.currentFile=null};ZipFileWorker.prototype.flush=function(){var localDirLength=this.bytesWritten;for(var i=0;i