pizzip/dist/pizzip.min.js

Create, read and edit .zip files synchronously with Javascript

/*! For license information please see pizzip.min.js.LICENSE.txt */
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e="",r=0;r<t.length;r++)e+=String.fromCharCode(255&t.charCodeAt(r));return e},e.arrayBuffer2Blob=function(t,r){e.checkSupport("blob"),r=r||"application/zip";try{return new Blob([t],{type:r})}catch(e){try{var n=new(window.BlobBuilder||window.WebKitBlobBuilder||window.MozBlobBuilder||window.MSBlobBuilder);return n.append(t),n.getBlob(r)}catch(t){throw new Error("Bug : can't construct the Blob.")}}},e.applyFromCharCode=h;var f={};f.string={string:o,array:function(t){return d(t,new Array(t.length))},arraybuffer:function(t){return f.string.uint8array(t).buffer},uint8array:function(t){return d(t,new Uint8Array(t.length))},nodebuffer:function(t){return d(t,s(t.length))}},f.array={string:h,array:o,arraybuffer:function(t){return new Uint8Array(t).buffer},uint8array:function(t){return new Uint8Array(t)},nodebuffer:function(t){return s(t)}},f.arraybuffer={string:function(t){return h(new Uint8Array(t))},array:function(t){return l(new Uint8Array(t),new 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Error("Cannot read data from a promise, you probably are running new PizZip(data) with a promise");if("object"===n(t)&&"function"==typeof t.file)throw new Error("Cannot read data from a pizzip instance, you probably are running new PizZip(zip) with a zipinstance");if("[object Date]"===e)throw new Error("Cannot read data from a Date, you probably are running new PizZip(data) with a date");if("object"===n(t)&&null==t.crc32)throw new Error("Unsupported data given to new PizZip(data) (object given)")}},e.checkSupport=function(t){if(!i[t.toLowerCase()])throw new Error(t+" is not supported by this browser")},e.MAX_VALUE_16BITS=65535,e.MAX_VALUE_32BITS=-1,e.pretty=function(t){var e,r,n="";for(r=0;r<(t||"").length;r++)n+="\\x"+((e=t.charCodeAt(r))<16?"0":"")+e.toString(16).toUpperCase();return n},e.findCompression=function(t){for(var e in a)if(a.hasOwnProperty(e)&&a[e].magic===t)return a[e];return null},e.isRegExp=function(t){return"[object 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this.reader.setIndex(r),n},readBlockEndOfCentral:function(){this.diskNumber=this.reader.readInt(2),this.diskWithCentralDirStart=this.reader.readInt(2),this.centralDirRecordsOnThisDisk=this.reader.readInt(2),this.centralDirRecords=this.reader.readInt(2),this.centralDirSize=this.reader.readInt(4),this.centralDirOffset=this.reader.readInt(4),this.zipCommentLength=this.reader.readInt(2);var t=this.reader.readData(this.zipCommentLength),e=l.uint8array?"uint8array":"array",r=o.transformTo(e,t);this.zipComment=this.loadOptions.decodeFileName(r)},readBlockZip64EndOfCentral:function(){this.zip64EndOfCentralSize=this.reader.readInt(8),this.versionMadeBy=this.reader.readString(2),this.versionNeeded=this.reader.readInt(2),this.diskNumber=this.reader.readInt(4),this.diskWithCentralDirStart=this.reader.readInt(4),this.centralDirRecordsOnThisDisk=this.reader.readInt(8),this.centralDirRecords=this.reader.readInt(8),this.centralDirSize=this.reader.readInt(8),this.centralDirOffset=this.reader.readInt(8),this.zip64ExtensibleData={};for(var t,e,r,n=this.zip64EndOfCentralSize-44;0<n;)t=this.reader.readInt(2),e=this.reader.readInt(4),r=this.reader.readString(e),this.zip64ExtensibleData[t]={id:t,length:e,value:r}},readBlockZip64EndOfCentralLocator:function(){if(this.diskWithZip64CentralDirStart=this.reader.readInt(4),this.relativeOffsetEndOfZip64CentralDir=this.reader.readInt(8),this.disksCount=this.reader.readInt(4),this.disksCount>1)throw new Error("Multi-volumes zip are not supported")},readLocalFiles:function(){var t,e;for(t=0;t<this.files.length;t++)e=this.files[t],this.reader.setIndex(e.localHeaderOffset),this.checkSignature(d.LOCAL_FILE_HEADER),e.readLocalPart(this.reader),e.handleUTF8(),e.processAttributes()},readCentralDir:function(){var t;for(this.reader.setIndex(this.centralDirOffset);this.reader.readString(4)===d.CENTRAL_FILE_HEADER;)(t=new h({zip64:this.zip64},this.loadOptions)).readCentralPart(this.reader),this.files.push(t);if(this.centralDirRecords!==this.files.length&&0!==this.centralDirRecords&&0===this.files.length)throw new Error("Corrupted zip or bug: expected "+this.centralDirRecords+" records in central dir, got "+this.files.length)},readEndOfCentral:function(){var t=this.reader.lastIndexOfSignature(d.CENTRAL_DIRECTORY_END);if(t<0)throw this.isSignature(0,d.LOCAL_FILE_HEADER)?new Error("Corrupted zip : can't find end of central directory"):new Error("Can't find end of central directory : is this a zip file ?");this.reader.setIndex(t);var e=t;if(this.checkSignature(d.CENTRAL_DIRECTORY_END),this.readBlockEndOfCentral(),this.diskNumber===o.MAX_VALUE_16BITS||this.diskWithCentralDirStart===o.MAX_VALUE_16BITS||this.centralDirRecordsOnThisDisk===o.MAX_VALUE_16BITS||this.centralDirRecords===o.MAX_VALUE_16BITS||this.centralDirSize===o.MAX_VALUE_32BITS||this.centralDirOffset===o.MAX_VALUE_32BITS){if(this.zip64=!0,(t=this.reader.lastIndexOfSignature(d.ZIP64_CENTRAL_DIRECTORY_LOCATOR))<0)throw new Error("Corrupted zip : can't find the ZIP64 end of central directory locator");if(this.reader.setIndex(t),this.checkSignature(d.ZIP64_CENTRAL_DIRECTORY_LOCATOR),this.readBlockZip64EndOfCentralLocator(),!this.isSignature(this.relativeOffsetEndOfZip64CentralDir,d.ZIP64_CENTRAL_DIRECTORY_END)&&(this.relativeOffsetEndOfZip64CentralDir=this.reader.lastIndexOfSignature(d.ZIP64_CENTRAL_DIRECTORY_END),this.relativeOffsetEndOfZip64CentralDir<0))throw new Error("Corrupted zip : can't find the ZIP64 end of central 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n=r(63),i=r(320),a=r(955),s=r(822),o=r(182);function d(t,e){this.options=t,this.loadOptions=e}d.prototype={isEncrypted:function(){return!(1&~this.bitFlag)},useUTF8:function(){return!(2048&~this.bitFlag)},prepareCompressedContent:function(t,e,r){return function(){var n=t.index;t.setIndex(e);var i=t.readData(r);return t.setIndex(n),i}},prepareContent:function(t,e,r,n,a){return function(){var t=i.transformTo(n.uncompressInputType,this.getCompressedContent()),e=n.uncompress(t);if(e.length!==a)throw new Error("Bug : uncompressed data size mismatch");return e}},readLocalPart:function(t){t.skip(22),this.fileNameLength=t.readInt(2);var e=t.readInt(2);if(this.fileName=t.readData(this.fileNameLength),t.skip(e),-1===this.compressedSize||-1===this.uncompressedSize)throw new Error("Bug or corrupted zip : didn't get enough informations from the central directory (compressedSize == -1 || uncompressedSize == -1)");var r=i.findCompression(this.compressionMethod);if(null===r)throw new Error("Corrupted zip : compression "+i.pretty(this.compressionMethod)+" unknown (inner file : "+i.transformTo("string",this.fileName)+")");if(this.decompressed=new a,this.decompressed.compressedSize=this.compressedSize,this.decompressed.uncompressedSize=this.uncompressedSize,this.decompressed.crc32=this.crc32,this.decompressed.compressionMethod=this.compressionMethod,this.decompressed.getCompressedContent=this.prepareCompressedContent(t,t.index,this.compressedSize,r),this.decompressed.getContent=this.prepareContent(t,t.index,this.compressedSize,r,this.uncompressedSize),this.loadOptions.checkCRC32&&(this.decompressed=i.transformTo("string",this.decompressed.getContent()),s.crc32(this.decompressed)!==this.crc32))throw new Error("Corrupted zip : CRC32 mismatch")},readCentralPart:function(t){if(this.versionMadeBy=t.readInt(2),this.versionNeeded=t.readInt(2),this.bitFlag=t.readInt(2),this.compressionMethod=t.readString(2),this.date=t.readDate(),this.crc32=t.readInt(4),this.compressedSize=t.readInt(4),this.uncompressedSize=t.readInt(4),this.fileNameLength=t.readInt(2),this.extraFieldsLength=t.readInt(2),this.fileCommentLength=t.readInt(2),this.diskNumberStart=t.readInt(2),this.internalFileAttributes=t.readInt(2),this.externalFileAttributes=t.readInt(4),this.localHeaderOffset=t.readInt(4),this.isEncrypted())throw new Error("Encrypted zip are not supported");this.fileName=t.readData(this.fileNameLength),this.readExtraFields(t),this.parseZIP64ExtraField(t),this.fileComment=t.readData(this.fileCommentLength)},processAttributes:function(){this.unixPermissions=null,this.dosPermissions=null;var t=this.versionMadeBy>>8;this.dir=!!(16&this.externalFileAttributes),0===t&&(this.dosPermissions=63&this.externalFileAttributes),3===t&&(this.unixPermissions=this.externalFileAttributes>>16&65535),this.dir||"/"!==this.fileNameStr.slice(-1)||(this.dir=!0)},parseZIP64ExtraField:function(){if(this.extraFields[1]){var t=new n(this.extraFields[1].value);this.uncompressedSize===i.MAX_VALUE_32BITS&&(this.uncompressedSize=t.readInt(8)),this.compressedSize===i.MAX_VALUE_32BITS&&(this.compressedSize=t.readInt(8)),this.localHeaderOffset===i.MAX_VALUE_32BITS&&(this.localHeaderOffset=t.readInt(8)),this.diskNumberStart===i.MAX_VALUE_32BITS&&(this.diskNumberStart=t.readInt(4))}},readExtraFields:function(t){var e,r,n,i=t.index;for(this.extraFields=this.extraFields||{};t.index<i+this.extraFieldsLength;)e=t.readInt(2),r=t.readInt(2),n=t.readString(r),this.extraFields[e]={id:e,length:r,value:n}},handleUTF8:function(){var t=o.uint8array?"uint8array":"array";if(this.useUTF8())this.fileNameStr=s.utf8decode(this.fileName),this.fileCommentStr=s.utf8decode(this.fileComment);else{var e=this.findExtraFieldUnicodePath();if(null!==e)this.fileNameStr=e;else{var r=i.transformTo(t,this.fileName);this.fileNameStr=this.loadOptions.decodeFileName(r)}var n=this.findExtraFieldUnicodeComment();if(null!==n)this.fileCommentStr=n;else{var a=i.transformTo(t,this.fileComment);this.fileCommentStr=this.loadOptions.decodeFileName(a)}}},findExtraFieldUnicodePath:function(){var t=this.extraFields[28789];if(t){var e=new n(t.value);return 1!==e.readInt(1)||s.crc32(this.fileName)!==e.readInt(4)?null:s.utf8decode(e.readString(t.length-5))}return null},findExtraFieldUnicodeComment:function(){var t=this.extraFields[25461];if(t){var e=new n(t.value);return 1!==e.readInt(1)||s.crc32(this.fileComment)!==e.readInt(4)?null:s.utf8decode(e.readString(t.length-5))}return null}},t.exports=d},851:function(t,e){!function(t){"use strict";function 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t.insert=t.strstart<2?t.strstart:2,e===J?(kt(t,!0),0===t.strm.avail_out?3:4):t.sym_next&&(kt(t,!1),0===t.strm.avail_out)?1:2},Rt=function(t,e){for(var r,n,i;;){if(t.lookahead<ct){if(St(t),t.lookahead<ct&&e===W)return 1;if(0===t.lookahead)break}if(r=0,t.lookahead>=3&&(t.ins_h=vt(t,t.ins_h,t.window[t.strstart+3-1]),r=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart),t.prev_length=t.match_length,t.prev_match=t.match_start,t.match_length=2,0!==r&&t.prev_length<t.max_lazy_match&&t.strstart-r<=t.w_size-ct&&(t.match_length=Ct(t,r),t.match_length<=5&&(t.strategy===at||3===t.match_length&&t.strstart-t.match_start>4096)&&(t.match_length=2)),t.prev_length>=3&&t.match_length<=t.prev_length){i=t.strstart+t.lookahead-3,n=Y(t,t.strstart-1-t.prev_match,t.prev_length-3),t.lookahead-=t.prev_length-1,t.prev_length-=2;do{++t.strstart<=i&&(t.ins_h=vt(t,t.ins_h,t.window[t.strstart+3-1]),r=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart)}while(0!=--t.prev_length);if(t.match_available=0,t.match_length=2,t.strstart++,n&&(kt(t,!1),0===t.strm.avail_out))return 1}else if(t.match_available){if((n=Y(t,0,t.window[t.strstart-1]))&&kt(t,!1),t.strstart++,t.lookahead--,0===t.strm.avail_out)return 1}else t.match_available=1,t.strstart++,t.lookahead--}return t.match_available&&(n=Y(t,0,t.window[t.strstart-1]),t.match_available=0),t.insert=t.strstart<2?t.strstart:2,e===J?(kt(t,!0),0===t.strm.avail_out?3:4):t.sym_next&&(kt(t,!1),0===t.strm.avail_out)?1:2};function Ot(t,e,r,n,i){this.good_length=t,this.max_lazy=e,this.nice_length=r,this.max_chain=n,this.func=i}var Dt=[new Ot(0,0,0,0,It),new Ot(4,4,8,4,Tt),new Ot(4,5,16,8,Tt),new Ot(4,6,32,32,Tt),new Ot(4,4,16,16,Rt),new Ot(8,16,32,32,Rt),new Ot(8,16,128,128,Rt),new Ot(8,32,128,256,Rt),new Ot(32,128,258,1024,Rt),new Ot(32,258,258,4096,Rt)];function Ut(){this.strm=null,this.status=0,this.pending_buf=null,this.pending_buf_size=0,this.pending_out=0,this.pending=0,this.wrap=0,this.gzhead=null,this.gzindex=0,this.method=ft,this.last_flush=-1,this.w_size=0,this.w_bits=0,this.w_mask=0,this.window=null,this.window_size=0,this.prev=null,this.head=null,this.ins_h=0,this.hash_size=0,this.hash_bits=0,this.hash_mask=0,this.hash_shift=0,this.block_start=0,this.match_length=0,this.prev_match=0,this.match_available=0,this.strstart=0,this.match_start=0,this.lookahead=0,this.prev_length=0,this.max_chain_length=0,this.max_lazy_match=0,this.level=0,this.strategy=0,this.good_match=0,this.nice_match=0,this.dyn_ltree=new Uint16Array(1146),this.dyn_dtree=new Uint16Array(122),this.bl_tree=new Uint16Array(78),bt(this.dyn_ltree),bt(this.dyn_dtree),bt(this.bl_tree),this.l_desc=null,this.d_desc=null,this.bl_desc=null,this.bl_count=new Uint16Array(16),this.heap=new Uint16Array(573),bt(this.heap),this.heap_len=0,this.heap_max=0,this.depth=new Uint16Array(573),bt(this.depth),this.sym_buf=0,this.lit_bufsize=0,this.sym_next=0,this.sym_end=0,this.opt_len=0,this.static_len=0,this.matches=0,this.insert=0,this.bi_buf=0,this.bi_valid=0}var Bt=function(t){if(!t)return 1;var e=t.state;return!e||e.strm!==t||e.status!==_t&&57!==e.status&&69!==e.status&&73!==e.status&&91!==e.status&&103!==e.status&&e.status!==pt&&e.status!==mt?1:0},Lt=function(t){if(Bt(t))return gt(t,et);t.total_in=t.total_out=0,t.data_type=lt;var e=t.state;return e.pending=0,e.pending_out=0,e.wrap<0&&(e.wrap=-e.wrap),e.status=2===e.wrap?57:e.wrap?_t:pt,t.adler=2===e.wrap?0:1,e.last_flush=-2,j(e),$},Zt=function(t){var e,r=Lt(t);return r===$&&((e=t.state).window_size=2*e.w_size,bt(e.head),e.max_lazy_match=Dt[e.level].max_lazy,e.good_match=Dt[e.level].good_length,e.nice_match=Dt[e.level].nice_length,e.max_chain_length=Dt[e.level].max_chain,e.strs