cfb.min.js 33.4 KB
/* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
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Buffer_from=function(){if(typeof Buffer!=="undefined"){var e=!Buffer.from;if(!e)try{Buffer.from("foo","utf8")}catch(r){e=true}return e?function(e,r){return r?new Buffer(e,r):new Buffer(e)}:Buffer.from.bind(Buffer)}return function(){}}();function new_raw_buf(e){if(has_buf){if(Buffer.alloc)return Buffer.alloc(e);var r=new Buffer(e);r.fill(0);return r}return typeof Uint8Array!="undefined"?new Uint8Array(e):new Array(e)}function new_unsafe_buf(e){if(has_buf)return Buffer.allocUnsafe?Buffer.allocUnsafe(e):new Buffer(e);return typeof Uint8Array!="undefined"?new Uint8Array(e):new Array(e)}var s2a=function e(r){if(has_buf)return Buffer_from(r,"binary");return r.split("").map(function(e){return e.charCodeAt(0)&255})};var chr0=/\u0000/g,chr1=/[\u0001-\u0006]/g;var __toBuffer=function(e){var r=[];for(var t=0;t<e[0].length;++t){r.push.apply(r,e[0][t])}return r};var ___toBuffer=__toBuffer;var __utf16le=function(e,r,t){var i=[];for(var n=r;n<t;n+=2)i.push(String.fromCharCode(__readUInt16LE(e,n)));return i.join("").replace(chr0,"")};var ___utf16le=__utf16le;var __hexlify=function(e,r,t){var i=[];for(var n=r;n<r+t;++n)i.push(("0"+e[n].toString(16)).slice(-2));return i.join("")};var ___hexlify=__hexlify;var __bconcat=function(e){if(Array.isArray(e[0]))return[].concat.apply([],e);var r=0,t=0;for(t=0;t<e.length;++t)r+=e[t].length;var i=new Uint8Array(r);for(t=0,r=0;t<e.length;r+=e[t].length,++t)i.set(e[t],r);return i};var bconcat=__bconcat;if(has_buf){__utf16le=function(e,r,t){if(!Buffer.isBuffer(e))return ___utf16le(e,r,t);return e.toString("utf16le",r,t).replace(chr0,"")};__hexlify=function(e,r,t){return Buffer.isBuffer(e)?e.toString("hex",r,r+t):___hexlify(e,r,t)};__toBuffer=function(e){return e[0].length>0&&Buffer.isBuffer(e[0][0])?Buffer.concat(e[0]):___toBuffer(e)};s2a=function(e){return Buffer_from(e,"binary")};bconcat=function(e){return Buffer.isBuffer(e[0])?Buffer.concat(e):__bconcat(e)}}var 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a=this.l+e;for(n=0;n<Math.min(r.length,e);++n){var f=r.charCodeAt(n);this[this.l++]=f&255;this[this.l++]=f>>8}while(this.l<a)this[this.l++]=0;return this;}switch(e){case 1:i=1;this[this.l]=r&255;break;case 2:i=2;this[this.l]=r&255;r>>>=8;this[this.l+1]=r&255;break;case 4:i=4;__writeUInt32LE(this,r,this.l);break;case-4:i=4;__writeInt32LE(this,r,this.l);break;}this.l+=i;return this}function CheckField(e,r){var t=__hexlify(this,this.l,e.length>>1);if(t!==e)throw new Error(r+"Expected "+e+" saw "+t);this.l+=e.length>>1}function prep_blob(e,r){e.l=r;e.read_shift=ReadShift;e.chk=CheckField;e.write_shift=WriteShift}function new_buf(e){var r=new_raw_buf(e);prep_blob(r,0);return r}var CRC32=function(){var e={};e.version="1.2.1";function r(){var e=0,r=new Array(256);for(var t=0;t!=256;++t){e=t;e=e&1?-306674912^e>>>1:e>>>1;e=e&1?-306674912^e>>>1:e>>>1;e=e&1?-306674912^e>>>1:e>>>1;e=e&1?-306674912^e>>>1:e>>>1;e=e&1?-306674912^e>>>1:e>>>1;e=e&1?-306674912^e>>>1:e>>>1;e=e&1?-306674912^e>>>1:e>>>1;e=e&1?-306674912^e>>>1:e>>>1;r[t]=e}return typeof Int32Array!=="undefined"?new Int32Array(r):r}var t=r();function i(e){var r=0,t=0,i=0,n=typeof Int32Array!=="undefined"?new Int32Array(4096):new Array(4096);for(i=0;i!=256;++i)n[i]=e[i];for(i=0;i!=256;++i){t=e[i];for(r=256+i;r<4096;r+=256)t=n[r]=t>>>8^e[t&255]}var a=[];for(i=1;i!=16;++i)a[i-1]=typeof Int32Array!=="undefined"?n.subarray(i*256,i*256+256):n.slice(i*256,i*256+256);return a}var n=i(t);var a=n[0],f=n[1],s=n[2],l=n[3],h=n[4];var o=n[5],u=n[6],c=n[7],v=n[8],_=n[9];var d=n[10],w=n[11],p=n[12],g=n[13],b=n[14];function F(e,r){var i=r^-1;for(var n=0,a=e.length;n<a;)i=i>>>8^t[(i^e.charCodeAt(n++))&255];return~i}function y(e,r){var i=r^-1,n=e.length-15,F=0;for(;F<n;)i=b[e[F++]^i&255]^g[e[F++]^i>>8&255]^p[e[F++]^i>>16&255]^w[e[F++]^i>>>24]^d[e[F++]]^_[e[F++]]^v[e[F++]]^c[e[F++]]^u[e[F++]]^o[e[F++]]^h[e[F++]]^l[e[F++]]^s[e[F++]]^f[e[F++]]^a[e[F++]]^t[e[F++]];n+=15;while(F<n)i=i>>>8^t[(i^e[F++])&255];return~i}function m(e,r){var i=r^-1;for(var n=0,a=e.length,f=0,s=0;n<a;){f=e.charCodeAt(n++);if(f<128){i=i>>>8^t[(i^f)&255]}else if(f<2048){i=i>>>8^t[(i^(192|f>>6&31))&255];i=i>>>8^t[(i^(128|f&63))&255]}else if(f>=55296&&f<57344){f=(f&1023)+64;s=e.charCodeAt(n++)&1023;i=i>>>8^t[(i^(240|f>>8&7))&255];i=i>>>8^t[(i^(128|f>>2&63))&255];i=i>>>8^t[(i^(128|s>>6&15|(f&3)<<4))&255];i=i>>>8^t[(i^(128|s&63))&255]}else{i=i>>>8^t[(i^(224|f>>12&15))&255];i=i>>>8^t[(i^(128|f>>6&63))&255];i=i>>>8^t[(i^(128|f&63))&255]}}return~i}e.table=t;e.bstr=F;e.buf=y;e.str=m;return e}();var CFB=function r(){var e={};e.version="1.2.2";function r(e,r){var t=e.split("/"),i=r.split("/");for(var n=0,a=0,f=Math.min(t.length,i.length);n<f;++n){if(a=t[n].length-i[n].length)return a;if(t[n]!=i[n])return t[n]<i[n]?-1:1}return t.length-i.length}function t(e){if(e.charAt(e.length-1)=="/")return e.slice(0,-1).indexOf("/")===-1?e:t(e.slice(0,-1));var r=e.lastIndexOf("/");return r===-1?e:e.slice(0,r+1)}function i(e){if(e.charAt(e.length-1)=="/")return i(e.slice(0,-1));var r=e.lastIndexOf("/");return r===-1?e:e.slice(r+1)}function n(e,r){if(typeof r==="string")r=new Date(r);var t=r.getHours();t=t<<6|r.getMinutes();t=t<<5|r.getSeconds()>>>1;e.write_shift(2,t);var i=r.getFullYear()-1980;i=i<<4|r.getMonth()+1;i=i<<5|r.getDate();e.write_shift(2,i)}function a(e){var r=e.read_shift(2)&65535;var t=e.read_shift(2)&65535;var i=new Date;var n=t&31;t>>>=5;var a=t&15;t>>>=4;i.setMilliseconds(0);i.setFullYear(t+1980);i.setMonth(a-1);i.setDate(n);var f=r&31;r>>>=5;var s=r&63;r>>>=6;i.setHours(r);i.setMinutes(s);i.setSeconds(f<<1);return i}function f(e){prep_blob(e,0);var r={};var t=0;while(e.l<=e.length-4){var i=e.read_shift(2);var n=e.read_shift(2),a=e.l+n;var f={};switch(i){case 21589:{t=e.read_shift(1);if(t&1)f.mtime=e.read_shift(4);if(n>5){if(t&2)f.atime=e.read_shift(4);if(t&4)f.ctime=e.read_shift(4)}if(f.mtime)f.mt=new Date(f.mtime*1e3)}break;}e.l=a;r[i]=f}return r}var s;function l(){return s||(s=require("fs"))}function h(e,r){if(e[0]==80&&e[1]==75)return ye(e,r);if((e[0]|32)==109&&(e[1]|32)==105)return ke(e,r);if(e.length<512)throw new Error("CFB file size "+e.length+" < 512");var t=3;var i=512;var n=0;var a=0;var f=0;var s=0;var l=0;var h=[];var _=e.slice(0,512);prep_blob(_,0);var w=o(_);t=w[0];switch(t){case 3:i=512;break;case 4:i=4096;break;case 0:if(w[1]==0)return ye(e,r);default:throw new Error("Major Version: Expected 3 or 4 saw "+t);}if(i!==512){_=e.slice(0,i);prep_blob(_,28)}var b=e.slice(0,i);u(_,t);var F=_.read_shift(4,"i");if(t===3&&F!==0)throw new Error("# Directory Sectors: Expected 0 saw 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bconcat(a).slice(0,e.size)}function d(e,r,t,i,n){var a=E;if(e===E){if(r!==0)throw new Error("DIFAT chain shorter than expected")}else if(e!==-1){var f=t[e],s=(i>>>2)-1;if(!f)return;for(var l=0;l<s;++l){if((a=__readInt32LE(f,l*4))===E)break;n.push(a)}if(r>=1)d(__readInt32LE(f,i-4),r-1,t,i,n)}}function w(e,r,t,i,n){var a=[],f=[];if(!n)n=[];var s=i-1,l=0,h=0;for(l=r;l>=0;){n[l]=true;a[a.length]=l;f.push(e[l]);var o=t[Math.floor(l*4/i)];h=l*4&s;if(i<4+h)throw new Error("FAT boundary crossed: "+l+" 4 "+i);if(!e[o])break;l=__readInt32LE(e[o],h)}return{nodes:a,data:__toBuffer([f])}}function p(e,r,t,i){var n=e.length,a=[];var f=[],s=[],l=[];var h=i-1,o=0,u=0,c=0,v=0;for(o=0;o<n;++o){s=[];c=o+r;if(c>=n)c-=n;if(f[c])continue;l=[];var _=[];for(u=c;u>=0;){_[u]=true;f[u]=true;s[s.length]=u;l.push(e[u]);var d=t[Math.floor(u*4/i)];v=u*4&h;if(i<4+v)throw new Error("FAT boundary crossed: "+u+" 4 "+i);if(!e[d])break;u=__readInt32LE(e[d],v);if(_[u])break}a[c]={nodes:s,data:__toBuffer([l])}}return a}function g(e,r,t,i,n,a,f,s){var l=0,h=i.length?2:0;var o=r[e].data;var u=0,c=0,v;for(;u<o.length;u+=128){var d=o.slice(u,u+128);prep_blob(d,64);c=d.read_shift(2);v=__utf16le(d,0,c-h);i.push(v);var p={name:v,type:d.read_shift(1),color:d.read_shift(1),L:d.read_shift(4,"i"),R:d.read_shift(4,"i"),C:d.read_shift(4,"i"),clsid:d.read_shift(16),state:d.read_shift(4,"i"),start:0,size:0};var g=d.read_shift(2)+d.read_shift(2)+d.read_shift(2)+d.read_shift(2);if(g!==0)p.ct=b(d,d.l-8);var F=d.read_shift(2)+d.read_shift(2)+d.read_shift(2)+d.read_shift(2);if(F!==0)p.mt=b(d,d.l-8);p.start=d.read_shift(4,"i");p.size=d.read_shift(4,"i");if(p.size<0&&p.start<0){p.size=p.type=0;p.start=E;p.name=""}if(p.type===5){l=p.start;if(n>0&&l!==E)r[l].name="!StreamData"}else if(p.size>=4096){p.storage="fat";if(r[p.start]===undefined)r[p.start]=w(t,p.start,r.fat_addrs,r.ssz);r[p.start].name=p.name;p.content=r[p.start].data.slice(0,p.size)}else{p.storage="minifat";if(p.size<0)p.size=0;else 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u=e.read_shift(4);var c=e.read_shift(4);var v=e.read_shift(2);var _=e.read_shift(2);var d="";for(var w=0;w<v;++w)d+=String.fromCharCode(e[e.l++]);if(_){var p=f(e.slice(e.l,e.l+_));if((p[21589]||{}).mt)h=p[21589].mt;if(((n||{})[21589]||{}).mt)h=n[21589].mt}e.l+=_;var g=e.slice(e.l,e.l+u);switch(l){case 8:g=O(e,c);break;case 0:break;default:throw new Error("Unsupported ZIP Compression method "+l);}var b=false;if(s&8){o=e.read_shift(4);if(o==134695760){o=e.read_shift(4);b=true}u=e.read_shift(4);c=e.read_shift(4)}if(u!=r)Fe(b,"Bad compressed size: "+r+" != "+u);if(c!=t)Fe(b,"Bad uncompressed size: "+t+" != "+c);var F=CRC32.buf(g,0);if(o>>0!=F>>0)Fe(b,"Bad CRC32 checksum: "+o+" != "+F);ze(i,d,g,{unsafe:true,mt:h})}function xe(e,r){var t=r||{};var i=[],a=[];var f=new_buf(1);var s=t.compression?8:0,l=0;var h=false;if(h)l|=8;var o=0,u=0;var c=0,v=0;var _=e.FullPaths[0],d=_,w=e.FileIndex[0];var p=[];var g=0;for(o=1;o<e.FullPaths.length;++o){d=e.FullPaths[o].slice(_.length);w=e.FileIndex[o];if(!w.size||!w.content||d=="Sh33tJ5")continue;var b=c;var F=new_buf(d.length);for(u=0;u<d.length;++u)F.write_shift(1,d.charCodeAt(u)&127);F=F.slice(0,F.l);p[v]=CRC32.buf(w.content,0);var y=w.content;if(s==8)y=T(y);f=new_buf(30);f.write_shift(4,67324752);f.write_shift(2,20);f.write_shift(2,l);f.write_shift(2,s);if(w.mt)n(f,w.mt);else 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