js-cfb/dist/cfb.min.js

/* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
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a=0;a<n;){i=i>>>8^t[(i^e.charCodeAt(a++))&255];i=i>>>8^t[(i^e.charCodeAt(a++))&255]}if(a===n)i=i>>>8^t[(i^e.charCodeAt(a))&255];return i^-1}function n(e,r){if(e.length>1e4)return a(e,r);var i=r^-1,n=e.length-3;for(var f=0;f<n;){i=i>>>8^t[(i^e[f++])&255];i=i>>>8^t[(i^e[f++])&255];i=i>>>8^t[(i^e[f++])&255];i=i>>>8^t[(i^e[f++])&255]}while(f<n+3)i=i>>>8^t[(i^e[f++])&255];return i^-1}function a(e,r){var i=r^-1,n=e.length-7;for(var a=0;a<n;){i=i>>>8^t[(i^e[a++])&255];i=i>>>8^t[(i^e[a++])&255];i=i>>>8^t[(i^e[a++])&255];i=i>>>8^t[(i^e[a++])&255];i=i>>>8^t[(i^e[a++])&255];i=i>>>8^t[(i^e[a++])&255];i=i>>>8^t[(i^e[a++])&255];i=i>>>8^t[(i^e[a++])&255]}while(a<n+7)i=i>>>8^t[(i^e[a++])&255];return i^-1}function f(e,r){var i=r^-1;for(var n=0,a=e.length,f,s;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^-1}e.table=t;e.bstr=i;e.buf=n;e.str=f});var CFB=function t(){var e={};e.version="1.2.0";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 h(){return s||(s=require("fs"))}function l(e,r){if(e[0]==80&&e[1]==75)return we(e,r);if((e[0]|32)==109&&(e[1]|32)==105)return Ie(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 h=0;var l=[];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 we(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 "+F);_.l+=4;f=_.read_shift(4,"i");_.l+=4;_.chk("00100000","Mini Stream Cutoff Size: ");s=_.read_shift(4,"i");n=_.read_shift(4,"i");h=_.read_shift(4,"i");a=_.read_shift(4,"i");for(var y=-1,m=0;m<109;++m){y=_.read_shift(4,"i");if(y<0)break;l[m]=y}var x=c(e,i);d(h,a,x,i,l);var C=p(x,f,l,i);C[f].name="!Directory";if(n>0&&s!==B)C[s].name="!MiniFAT";C[l[0]].name="!FAT";C.fat_addrs=l;C.ssz=i;var I={},A=[],E=[],S=[];g(f,C,x,A,n,I,E,s);v(E,S,A);A.shift();var k={FileIndex:E,FullPaths:S};if(r&&r.raw)k.raw={header:b,sectors:x};return k}function o(e){if(e[e.l]==80&&e[e.l+1]==75)return[0,0];e.chk(S,"Header Signature: ");e.l+=16;var r=e.read_shift(2,"u");return[e.read_shift(2,"u"),r]}function u(e,r){var t=9;e.l+=2;switch(t=e.read_shift(2)){case 9:if(r!=3)throw new Error("Sector Shift: Expected 9 saw "+t);break;case 12:if(r!=4)throw new Error("Sector Shift: Expected 12 saw "+t);break;default:throw new Error("Sector Shift: Expected 9 or 12 saw "+t);}e.chk("0600","Mini Sector Shift: ");e.chk("000000000000","Reserved: ")}function c(e,r){var t=Math.ceil(e.length/r)-1;var i=[];for(var n=1;n<t;++n)i[n-1]=e.slice(n*r,(n+1)*r);i[t-1]=e.slice(t*r);return i}function v(e,r,t){var i=0,n=0,a=0,f=0,s=0,h=t.length;var l=[],o=[];for(;i<h;++i){l[i]=o[i]=i;r[i]=t[i]}for(;s<o.length;++s){i=o[s];n=e[i].L;a=e[i].R;f=e[i].C;if(l[i]===i){if(n!==-1&&l[n]!==n)l[i]=l[n];if(a!==-1&&l[a]!==a)l[i]=l[a]}if(f!==-1)l[f]=i;if(n!==-1&&i!=l[i]){l[n]=l[i];if(o.lastIndexOf(n)<s)o.push(n)}if(a!==-1&&i!=l[i]){l[a]=l[i];if(o.lastIndexOf(a)<s)o.push(a)}}for(i=1;i<h;++i)if(l[i]===i){if(a!==-1&&l[a]!==a)l[i]=l[a];else if(n!==-1&&l[n]!==n)l[i]=l[n]}for(i=1;i<h;++i){if(e[i].type===0)continue;s=i;if(s!=l[s])do{s=l[s];r[i]=r[s]+"/"+r[i]}while(s!==0&&-1!==l[s]&&s!=l[s]);l[i]=-1}r[0]+="/";for(i=1;i<h;++i){if(e[i].type!==2)r[i]+="/"}}function _(e,r,t){var i=e.start,n=e.size;var a=[];var f=i;while(t&&n>0&&f>=0){a.push(r.slice(f*E,f*E+E));n-=E;f=__readInt32LE(t,f*4)}if(a.length===0)return new_buf(0);return bconcat(a).slice(0,e.size)}function d(e,r,t,i,n){var a=B;if(e===B){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 h=0;h<s;++h){if((a=__readInt32LE(f,h*4))===B)break;n.push(a)}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,h=0,l=0;for(h=r;h>=0;){n[h]=true;a[a.length]=h;f.push(e[h]);var o=t[Math.floor(h*4/i)];l=h*4&s;if(i<4+l)throw new Error("FAT boundary crossed: "+h+" 4 "+i);if(!e[o])break;h=__readInt32LE(e[o],l)}return{nodes:a,data:__toBuffer([f])}}function p(e,r,t,i){var n=e.length,a=[];var f=[],s=[],h=[];var l=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;h=[];var _=[];for(u=c;u>=0;){_[u]=true;f[u]=true;s[s.length]=u;h.push(e[u]);var d=t[Math.floor(u*4/i)];v=u*4&l;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([h])}}return a}function g(e,r,t,i,n,a,f,s){var h=0,l=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-l);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=B;p.name=""}if(p.type===5){h=p.start;if(n>0&&h!==B)r[h].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 if(h!==B&&p.start!==B&&r[h]){p.content=_(p,r[h].data,(r[s]||{}).data)}}if(p.content)prep_blob(p.content,0);a[v]=p;f.push(p)}}function b(e,r){return new Date((__readUInt32LE(e,r+4)/1e7*Math.pow(2,32)+__readUInt32LE(e,r)/1e7-11644473600)*1e3)}function F(e,r){h();return l(s.readFileSync(e),r)}function y(e,r){switch(r&&r.type||"base64"){case"file":return F(e,r);case"base64":return l(s2a(Base64.decode(e)),r);case"binary":return l(s2a(e),r);}return l(e,r)}function m(e,r){var t=r||{},i=t.root||"Root Entry";if(!e.FullPaths)e.FullPaths=[];if(!e.FileIndex)e.FileIndex=[];if(e.FullPaths.length!==e.FileIndex.length)throw new Error("inconsistent CFB structure");if(e.FullPaths.length===0){e.FullPaths[0]=i+"/";e.FileIndex[0]={name:i,type:5}}if(t.CLSID)e.FileIndex[0].clsid=t.CLSID;x(e)}function x(e){var r="
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h=t.read_shift(2);t.l+=6;var l=t.read_shift(4);t.l=l;for(s=0;s<h;++s){t.l+=20;var o=t.read_shift(4);var u=t.read_shift(4);var c=t.read_shift(2);var v=t.read_shift(2);var _=t.read_shift(2);t.l+=8;var d=t.read_shift(4);var w=f(t.slice(t.l+c,t.l+c+v));t.l+=c+v+_;var p=t.l;t.l=d+4;pe(t,o,u,a,w);t.l=p}return a}function pe(e,r,t,i,n){e.l+=2;var s=e.read_shift(2);var h=e.read_shift(2);var l=a(e);if(s&8257)throw new Error("Unsupported ZIP encryption");var o=e.read_shift(4);var 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)l=p[21589].mt;if(((n||{})[21589]||{}).mt)l=n[21589].mt}e.l+=_;var g=e.slice(e.l,e.l+u);switch(h){case 8:g=O(e,c);break;case 0:break;default:throw new Error("Unsupported ZIP Compression method "+h);}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)de(b,"Bad compressed size: "+r+" != "+u);if(c!=t)de(b,"Bad uncompressed size: "+t+" != "+c);var F=CRC32.buf(g,0);if(o>>0!=F>>0)de(b,"Bad CRC32 checksum: "+o+" != "+F);Be(i,d,g,{unsafe:true,mt:l})}function ge(e,r){var t=r||{};var i=[],a=[];var f=new_buf(1);var s=t.compression?8:0,h=0;var l=false;if(l)h|=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,h);f.write_shift(2,s);if(w.mt)n(f,w.mt);else f.write_shift(4,0);f.write_shift(-4,h&8?0:p[v]);f.write_shift(4,h&8?0:y.length);f.write_shift(4,h&8?0:w.content.length);f.write_shift(2,F.length);f.write_shift(2,0);c+=f.length;i.push(f);c+=F.length;i.push(F);c+=y.length;i.push(y);if(h&8){f=new_buf(12);f.write_shift(-4,p[v]);f.write_shift(4,y.length);f.write_shift(4,w.content.length);c+=f.l;i.push(f)}f=new_buf(46);f.write_shift(4,33639248);f.write_shift(2,0);f.write_shift(2,20);f.write_shift(2,h);f.write_shift(2,s);f.write_shift(4,0);f.write_shift(-4,p[v]);f.write_shift(4,y.length);f.write_shift(4,w.content.length);f.write_shift(2,F.length);f.write_shift(2,0);f.write_shift(2,0);f.write_shift(2,0);f.write_shift(2,0);f.write_shift(4,0);f.write_shift(4,b);g+=f.l;a.push(f);g+=F.length;a.push(F);++v}f=new_buf(22);f.write_shift(4,101010256);f.write_shift(2,0);f.write_shift(2,0);f.write_shift(2,v);f.write_shift(2,v);f.write_shift(4,g);f.write_shift(4,c);f.write_shift(2,0);return bconcat([bconcat(i),bconcat(a),f])}var be={htm:"text/html",xml:"text/xml",gif:"image/gif",jpg:"image/jpeg",png:"image/png",mso:"application/x-mso",thmx:"application/vnd.ms-officetheme",sh33tj5:"application/octet-stream"};function Fe(e,r){if(e.ctype)return e.ctype;var t=e.name||"",i=t.match(/\.([^\.]+)$/);if(i&&be[i[1]])return be[i[1]];if(r){i=(t=r).match(/[\.\\]([^\.\\])+$/);if(i&&be[i[1]])return be[i[1]]}return"application/octet-stream"}function ye(e){var r=Base64.encode(e);var t=[];for(var i=0;i<r.length;i+=76)t.push(r.slice(i,i+76));return t.join("\r\n")+"\r\n"}function me(e){var r=e.replace(/[\x00-\x08\x0B\x0C\x0E-\x1F\x7E-\xFF=]/g,function(e){var r=e.charCodeAt(0).toString(16).toUpperCase();return"="+(r.length==1?"0"+r:r)});r=r.replace(/ $/gm,"=20").replace(/\t$/gm,"=09");if(r.charAt(0)=="\n")r="=0D"+r.slice(1);r=r.replace(/\r(?!\n)/gm,"=0D").replace(/\n\n/gm,"\n=0A").replace(/([^\r\n])\n/gm,"$1=0A");var t=[],i=r.split("\r\n");for(var n=0;n<i.length;++n){var a=i[n];if(a.length==0){t.push("");continue}for(var f=0;f<a.length;){var s=76;var h=a.slice(f,f+s);if(h.charAt(s-1)=="=")s--;else if(h.charAt(s-2)=="=")s-=2;else if(h.charAt(s-3)=="=")s-=3;h=a.slice(f,f+s);f+=s;if(f<a.length)h+="=";t.push(h)}}return t.join("\r\n")}function xe(e){var r=[];for(var t=0;t<e.length;++t){var i=e[t];while(t<=e.length&&i.charAt(i.length-1)=="=")i=i.slice(0,i.length-1)+e[++t];r.push(i)}for(var n=0;n<r.length;++n)r[n]=r[n].replace(/=[0-9A-Fa-f]{2}/g,function(e){return String.fromCharCode(parseInt(e.slice(1),16))});return s2a(r.join("\r\n"))}function Ce(e,r,t){var i="",n="",a="",f;var s=0;for(;s<10;++s){var h=r[s];if(!h||h.match(/^\s*$/))break;var l=h.match(/^(.*?):\s*([^\s].*)$/);if(l)switch(l[1].toLowerCase()){case"content-location":i=l[2].trim();break;case"content-type":a=l[2].trim();break;case"content-transfer-encoding":n=l[2].trim();break;}}++s;switch(n.toLowerCase()){case"base64":f=s2a(Base64.decode(r.slice(s).join("")));break;case"quoted-printable":f=xe(r.slice(s));break;default:throw new Error("Unsupported Content-Transfer-Encoding "+n);}var o=Be(e,i.slice(t.length),f,{unsafe:true});if(a)o.ctype=a}function Ie(e,r){if(U(e.slice(0,13)).toLowerCase()!="mime-version:")throw new Error("Unsupported MAD header");var t=r&&r.root||"";var i=(has_buf&&Buffer.isBuffer(e)?e.toString("binary"):U(e)).split("\r\n");var n=0,a="";for(n=0;n<i.length;++n){a=i[n];if(!/^Content-Location:/i.test(a))continue;a=a.slice(a.indexOf("file"));if(!t)t=a.slice(0,a.lastIndexOf("/")+1);if(a.slice(0,t.length)==t)continue;while(t.length>0){t=t.slice(0,t.length-1);t=t.slice(0,t.lastIndexOf("/")+1);if(a.slice(0,t.length)==t)break}}var f=(i[1]||"").match(/boundary="(.*?)"/);if(!f)throw new Error("MAD cannot find boundary");var s="--"+(f[1]||"");var h=[],l=[];var o={FileIndex:h,FullPaths:l};m(o);var u,c=0;for(n=0;n<i.length;++n){var v=i[n];if(v!==s&&v!==s+"--")continue;if(c++)Ce(o,i.slice(u,n),t);u=n}return o}function Ae(e,r){var t=r||{};var i=t.boundary||"SheetJS";i="------="+i;var n=["MIME-Version: 1.0",'Content-Type: multipart/related; boundary="'+i.slice(2)+'"',"","",""];var a=e.FullPaths[0],f=a,s=e.FileIndex[0];for(var h=1;h<e.FullPaths.length;++h){f=e.FullPaths[h].slice(a.length);s=e.FileIndex[h];if(!s.size||!s.content||f=="
Sh33tJ5")continue;f=f.replace(/[\x00-\x08\x0B\x0C\x0E-\x1F\x7E-\xFF]/g,function(e){return"_x"+e.charCodeAt(0).toString(16)+"_"}).replace(/[\u0080-\uFFFF]/g,function(e){return"_u"+e.charCodeAt(0).toString(16)+"_"});var l=s.content;var o=has_buf&&Buffer.isBuffer(l)?l.toString("binary"):U(l);var u=0,c=Math.min(1024,o.length),v=0;for(var _=0;_<=c;++_)if((v=o.charCodeAt(_))>=32&&v<128)++u;var d=u>=c*4/5;n.push(i);n.push("Content-Location: "+(t.root||"file:///C:/SheetJS/")+f);n.push("Content-Transfer-Encoding: "+(d?"quoted-printable":"base64"));n.push("Content-Type: "+Fe(s,f));n.push("");n.push(d?me(o):ye(o))}n.push(i+"--\r\n");return n.join("\r\n")}function Ee(e){var r={};m(r,e);return r}function Be(e,r,t,n){var a=n&&n.unsafe;if(!a)m(e);var f=!a&&CFB.find(e,r);if(!f){var s=e.FullPaths[0];if(r.slice(0,s.length)==s)s=r;else{if(s.slice(-1)!="/")s+="/";s=(s+r).replace("//","/")}f={name:i(r),type:2};e.FileIndex.push(f);e.FullPaths.push(s);if(!a)CFB.utils.cfb_gc(e)}f.content=t;f.size=t?t.length:0;if(n){if(n.CLSID)f.clsid=n.CLSID;if(n.mt)f.mt=n.mt;if(n.ct)f.ct=n.ct}return f}function Se(e,r){m(e);var t=CFB.find(e,r);if(t)for(var i=0;i<e.FileIndex.length;++i)if(e.FileIndex[i]==t){e.FileIndex.splice(i,1);e.FullPaths.splice(i,1);return true}return false}function ke(e,r,t){m(e);var n=CFB.find(e,r);if(n)for(var a=0;a<e.FileIndex.length;++a)if(e.FileIndex[a]==n){e.FileIndex[a].name=i(t);e.FullPaths[a]=t;return true}return false}function Re(e){C(e,true)}e.find=A;e.read=y;e.parse=l;e.write=z;e.writeFile=P;e.utils={cfb_new:Ee,cfb_add:Be,cfb_del:Se,cfb_mov:ke,cfb_gc:Re,ReadShift:ReadShift,CheckField:CheckField,prep_blob:prep_blob,bconcat:bconcat,use_zlib:M,_deflateRaw:te,_inflateRaw:_e,consts:L};return e}();if(typeof require!=="undefined"&&typeof module!=="undefined"&&typeof DO_NOT_EXPORT_CFB==="undefined"){
module.exports=CFB}