cfb - npm Package Compare versions

Comparing version 1.0.5 to 1.0.6

cfb.js

@@ -162,3 +162,3 @@ /* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
 var exports = {};
-exports.version = '1.0.5';
+exports.version = '1.0.6';
 /* [MS-CFB] 2.6.4 */
@@ -341,4 +341,4 @@ function namecmp(l, r) {
 		if(C !== -1 /*NOSTREAM*/) dad[C] = i;
-		if(L !== -1) { dad[L] = dad[i]; q.push(L); }
-		if(R !== -1) { dad[R] = dad[i]; q.push(R); }
+		if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
+		if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
 	}
@@ -804,4 +804,5 @@ for(i=1; i < pl; ++i) if(dad[i] === i) {
 function cfb_add(cfb, name, content, opts) {
-	init_cfb(cfb);
-	var file = CFB.find(cfb, name);
+	var unsafe = opts && opts.unsafe;
+	if(!unsafe) init_cfb(cfb);
+	var file = !unsafe && CFB.find(cfb, name);
 	if(!file) {
@@ -817,3 +818,3 @@ var fpath = cfb.FullPaths[0];
 		cfb.FullPaths.push(fpath);
-		CFB.utils.cfb_gc(cfb);
+		if(!unsafe) CFB.utils.cfb_gc(cfb);
 	}
@@ -820,0 +821,0 @@ file.content = (content);

CHANGELOG.md

@@ -7,2 +7,6 @@ # CHANGELOG
 
+## 1.0.6 (2018-04-09)
+
+* `lastIndexOf` in FAT builder enables larger file parsing at minor cost
+
 ## 1.0.0 (2017-11-05)
@@ -9,0 +13,0 @@

dist/cfb.js

@@ -162,3 +162,3 @@ /* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
 var exports = {};
-exports.version = '1.0.5';
+exports.version = '1.0.6';
 /* [MS-CFB] 2.6.4 */
@@ -341,4 +341,4 @@ function namecmp(l, r) {
 		if(C !== -1 /*NOSTREAM*/) dad[C] = i;
-		if(L !== -1) { dad[L] = dad[i]; q.push(L); }
-		if(R !== -1) { dad[R] = dad[i]; q.push(R); }
+		if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
+		if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
 	}
@@ -804,4 +804,5 @@ for(i=1; i < pl; ++i) if(dad[i] === i) {
 function cfb_add(cfb, name, content, opts) {
-	init_cfb(cfb);
-	var file = CFB.find(cfb, name);
+	var unsafe = opts && opts.unsafe;
+	if(!unsafe) init_cfb(cfb);
+	var file = !unsafe && CFB.find(cfb, name);
 	if(!file) {
@@ -817,3 +818,3 @@ var fpath = cfb.FullPaths[0];
 		cfb.FullPaths.push(fpath);
-		CFB.utils.cfb_gc(cfb);
+		if(!unsafe) CFB.utils.cfb_gc(cfb);
 	}
@@ -820,0 +821,0 @@ file.content = (content);

dist/cfb.min.js

 /* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
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new_buf(e){var r=new_raw_buf(e);prep_blob(r,0);return r}var CFB=function t(){var e={};e.version="1.0.5";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)}var n;function a(){return n||(n=require("fs"))}function f(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 c=0;var _=0;var w=[];var p=e.slice(0,512);prep_blob(p,0);var F=s(p);t=F[0];switch(t){case 3:i=512;break;case 4:i=4096;break;default:throw new Error("Major Version: Expected 3 or 4 saw "+t);}if(i!==512){p=e.slice(0,i);prep_blob(p,28)}var g=e.slice(0,i);h(p,t);var I=p.read_shift(4,"i");if(t===3&&I!==0)throw new Error("# Directory Sectors: Expected 0 saw "+I);p.l+=4;f=p.read_shift(4,"i");p.l+=4;p.chk("00100000","Mini Stream Cutoff Size: ");c=p.read_shift(4,"i");n=p.read_shift(4,"i");_=p.read_shift(4,"i");a=p.read_shift(4,"i");for(var b=-1,x=0;x<109;++x){b=p.read_shift(4,"i");if(b<0)break;w[x]=b}var E=l(e,i);u(_,a,E,i,w);var C=d(E,f,w,i);C[f].name="!Directory";if(n>0&&c!==y)C[c].name="!MiniFAT";C[w[0]].name="!FAT";C.fat_addrs=w;C.ssz=i;var S={},A=[],m=[],B=[];v(f,C,E,A,n,S,m,c);o(m,B,A);A.shift();var L={FileIndex:m,FullPaths:B};if(r&&r.raw)L.raw={header:g,sectors:E};return L}function s(e){e.chk(S,"Header Signature: ");e.chk(m,"CLSID: ");var r=e.read_shift(2,"u");return[e.read_shift(2,"u"),r]}function h(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 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new_buf(0);return bconcat(a).slice(0,e.size)}function u(e,r,t,i,n){var a=y;if(e===y){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))===y)break;n.push(a)}u(__readInt32LE(f,i-4),r-1,t,i,n)}}function _(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 d(e,r,t,i){var n=e.length,a=[];var f=[],s=[],h=[];var l=i-1,o=0,c=0,u=0,_=0;for(o=0;o<n;++o){s=[];u=o+r;if(u>=n)u-=n;if(f[u])continue;h=[];for(c=u;c>=0;){f[c]=true;s[s.length]=c;h.push(e[c]);var d=t[Math.floor(c*4/i)];_=c*4&l;if(i<4+_)throw new Error("FAT boundary crossed: "+c+" 4 "+i);if(!e[d])break;c=__readInt32LE(e[d],_)}a[u]={nodes:s,data:__toBuffer([h])}}return a}function v(e,r,t,i,n,a,f,s){var h=0,l=i.length?2:0;var o=r[e].data;var u=0,d=0,v;for(;u<o.length;u+=128){var p=o.slice(u,u+128);prep_blob(p,64);d=p.read_shift(2);v=__utf16le(p,0,d-l);i.push(v);var F={name:v,type:p.read_shift(1),color:p.read_shift(1),L:p.read_shift(4,"i"),R:p.read_shift(4,"i"),C:p.read_shift(4,"i"),clsid:p.read_shift(16),state:p.read_shift(4,"i"),start:0,size:0};var g=p.read_shift(2)+p.read_shift(2)+p.read_shift(2)+p.read_shift(2);if(g!==0)F.ct=w(p,p.l-8);var I=p.read_shift(2)+p.read_shift(2)+p.read_shift(2)+p.read_shift(2);if(I!==0)F.mt=w(p,p.l-8);F.start=p.read_shift(4,"i");F.size=p.read_shift(4,"i");if(F.size<0&&F.start<0){F.size=F.type=0;F.start=y;F.name=""}if(F.type===5){h=F.start;if(n>0&&h!==y)r[h].name="!StreamData"}else if(F.size>=4096){F.storage="fat";if(r[F.start]===undefined)r[F.start]=_(t,F.start,r.fat_addrs,r.ssz);r[F.start].name=F.name;F.content=r[F.start].data.slice(0,F.size)}else{F.storage="minifat";if(F.size<0)F.size=0;else 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h=0,l=0;var o=e.FileIndex[0];for(;h<e.FileIndex.length;++h){o=e.FileIndex[h];if(!o.content)continue;l=o.content.length;if(l<4096)continue;o.start=f;s(l+511>>9)}s(i[6]+7>>3);while(n.l&511)n.write_shift(-4,B.ENDOFCHAIN);f=a=0;for(h=0;h<e.FileIndex.length;++h){o=e.FileIndex[h];if(!o.content)continue;l=o.content.length;if(!l||l>=4096)continue;o.start=f;s(l+63>>6)}while(n.l&511)n.write_shift(-4,B.ENDOFCHAIN);for(a=0;a<i[4]<<2;++a){var c=e.FullPaths[a];if(!c||c.length===0){for(h=0;h<17;++h)n.write_shift(4,0);for(h=0;h<3;++h)n.write_shift(4,-1);for(h=0;h<12;++h)n.write_shift(4,0);continue}o=e.FileIndex[a];if(a===0)o.start=o.size?o.start-1:y;var u=a===0&&t.root||o.name;l=2*(u.length+1);n.write_shift(64,u,"utf16le");n.write_shift(2,l);n.write_shift(1,o.type);n.write_shift(1,o.color);n.write_shift(-4,o.L);n.write_shift(-4,o.R);n.write_shift(-4,o.C);if(!o.clsid)for(h=0;h<4;++h)n.write_shift(4,0);else n.write_shift(16,o.clsid,"hex");n.write_shift(4,o.state||0);n.write_shift(4,0);n.write_shift(4,0);n.write_shift(4,0);n.write_shift(4,0);n.write_shift(4,o.start);n.write_shift(4,o.size);n.write_shift(4,0)}for(a=1;a<e.FileIndex.length;++a){o=e.FileIndex[a];if(o.size>=4096){n.l=o.start+1<<9;for(h=0;h<o.size;++h)n.write_shift(1,o.content[h]);for(;h&511;++h)n.write_shift(1,0)}}for(a=1;a<e.FileIndex.length;++a){o=e.FileIndex[a];if(o.size>0&&o.size<4096){for(h=0;h<o.size;++h)n.write_shift(1,o.content[h]);for(;h&63;++h)n.write_shift(1,0)}}while(n.l<n.length)n.write_shift(1,0);return n}function E(e,r){var t=e.FullPaths.map(function(e){return e.toUpperCase()});var i=t.map(function(e){var r=e.split("/");return r[r.length-(e.slice(-1)=="/"?2:1)]});var n=false;if(r.charCodeAt(0)===47){n=true;r=t[0].slice(0,-1)+r}else n=r.indexOf("/")!==-1;var a=r.toUpperCase();var f=n===true?t.indexOf(a):i.indexOf(a);if(f!==-1)return e.FileIndex[f];var s=!a.match(chr1);a=a.replace(chr0,"");if(s)a=a.replace(chr1,"!");for(f=0;f<t.length;++f){if((s?t[f].replace(chr1,"!"):t[f]).replace(chr0,"")==a)return e.FileIndex[f];if((s?i[f].replace(chr1,"!"):i[f]).replace(chr0,"")==a)return e.FileIndex[f]}return null}var C=64;var y=-2;var S="d0cf11e0a1b11ae1";var A=[208,207,17,224,161,177,26,225];var m="00000000000000000000000000000000";var B={MAXREGSECT:-6,DIFSECT:-4,FATSECT:-3,ENDOFCHAIN:y,FREESECT:-1,HEADER_SIGNATURE:S,HEADER_MINOR_VERSION:"3e00",MAXREGSID:-6,NOSTREAM:-1,HEADER_CLSID:m,EntryTypes:["unknown","storage","stream","lockbytes","property","root"]};function L(e,r,t){a();var i=x(e,t);n.writeFileSync(r,i)}function k(e){var r=new Array(e.length);for(var t=0;t<e.length;++t)r[t]=String.fromCharCode(e[t]);return r.join("")}function R(e,r){var t=x(e,r);switch(r&&r.type){case"file":a();n.writeFileSync(r.filename,t);return t;case"binary":return k(t);case"base64":return Base64.encode(k(t));}return t}function z(e){var r={};g(r,e);return r}function P(e,r,t,n){g(e);var a=CFB.find(e,r);if(!a){var f=e.FullPaths[0];if(r.slice(0,f.length)==f)f=r;else{if(f.slice(-1)!="/")f+="/";f=(f+r).replace("//","/")}a={name:i(r),type:2};e.FileIndex.push(a);e.FullPaths.push(f);CFB.utils.cfb_gc(e)}a.content=t;a.size=t?t.length:0;if(n){if(n.CLSID)a.clsid=n.CLSID}return a}function D(e,r){g(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 O(e,r,t){g(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 T(e){b(e,true)}e.find=E;e.read=F;e.parse=f;e.write=R;e.writeFile=L;e.utils={cfb_new:z,cfb_add:P,cfb_del:D,cfb_mov:O,cfb_gc:T,ReadShift:ReadShift,CheckField:CheckField,prep_blob:prep_blob,bconcat:bconcat,consts:B};return e}();if(typeof require!=="undefined"&&typeof module!=="undefined"&&typeof DO_NOT_EXPORT_CFB==="undefined"){module.exports=CFB}
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t;return i}var __writeUInt32LE=function(e,r,t){e[t]=r&255;e[t+1]=r>>>8&255;e[t+2]=r>>>16&255;e[t+3]=r>>>24&255};var __writeInt32LE=function(e,r,t){e[t]=r&255;e[t+1]=r>>8&255;e[t+2]=r>>16&255;e[t+3]=r>>24&255};function WriteShift(e,r,t){var i=0,n=0;switch(t){case"hex":for(;n<e;++n){this[this.l++]=parseInt(r.slice(2*n,2*n+2),16)||0}return this;case"utf16le":var 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 CFB=function t(){var e={};e.version="1.0.6";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)}var n;function a(){return n||(n=require("fs"))}function f(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 c=0;var _=0;var w=[];var p=e.slice(0,512);prep_blob(p,0);var F=s(p);t=F[0];switch(t){case 3:i=512;break;case 4:i=4096;break;default:throw new Error("Major Version: Expected 3 or 4 saw "+t);}if(i!==512){p=e.slice(0,i);prep_blob(p,28)}var g=e.slice(0,i);h(p,t);var I=p.read_shift(4,"i");if(t===3&&I!==0)throw new Error("# Directory Sectors: Expected 0 saw "+I);p.l+=4;f=p.read_shift(4,"i");p.l+=4;p.chk("00100000","Mini Stream Cutoff Size: ");c=p.read_shift(4,"i");n=p.read_shift(4,"i");_=p.read_shift(4,"i");a=p.read_shift(4,"i");for(var b=-1,x=0;x<109;++x){b=p.read_shift(4,"i");if(b<0)break;w[x]=b}var E=l(e,i);u(_,a,E,i,w);var C=d(E,f,w,i);C[f].name="!Directory";if(n>0&&c!==y)C[c].name="!MiniFAT";C[w[0]].name="!FAT";C.fat_addrs=w;C.ssz=i;var S={},A=[],m=[],B=[];v(f,C,E,A,n,S,m,c);o(m,B,A);A.shift();var L={FileIndex:m,FullPaths:B};if(r&&r.raw)L.raw={header:g,sectors:E};return L}function s(e){e.chk(S,"Header Signature: ");e.chk(m,"CLSID: ");var r=e.read_shift(2,"u");return[e.read_shift(2,"u"),r]}function h(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 l(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 o(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){l[n]=l[i];if(o.lastIndexOf(n)<s)o.push(n)}if(a!==-1){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=l[i];if(s===0)r[i]=r[0]+"/"+r[i];else while(s!==0&&s!==l[s]){r[i]=r[s]+"/"+r[i];s=l[s]}l[i]=0}r[0]+="/";for(i=1;i<h;++i){if(e[i].type!==2)r[i]+="/"}}function c(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*C,f*C+C));n-=C;f=__readInt32LE(t,f*4)}if(a.length===0)return new_buf(0);return bconcat(a).slice(0,e.size)}function u(e,r,t,i,n){var a=y;if(e===y){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))===y)break;n.push(a)}u(__readInt32LE(f,i-4),r-1,t,i,n)}}function _(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 d(e,r,t,i){var n=e.length,a=[];var f=[],s=[],h=[];var l=i-1,o=0,c=0,u=0,_=0;for(o=0;o<n;++o){s=[];u=o+r;if(u>=n)u-=n;if(f[u])continue;h=[];for(c=u;c>=0;){f[c]=true;s[s.length]=c;h.push(e[c]);var d=t[Math.floor(c*4/i)];_=c*4&l;if(i<4+_)throw new Error("FAT boundary crossed: "+c+" 4 "+i);if(!e[d])break;c=__readInt32LE(e[d],_)}a[u]={nodes:s,data:__toBuffer([h])}}return a}function v(e,r,t,i,n,a,f,s){var h=0,l=i.length?2:0;var o=r[e].data;var u=0,d=0,v;for(;u<o.length;u+=128){var p=o.slice(u,u+128);prep_blob(p,64);d=p.read_shift(2);v=__utf16le(p,0,d-l);i.push(v);var F={name:v,type:p.read_shift(1),color:p.read_shift(1),L:p.read_shift(4,"i"),R:p.read_shift(4,"i"),C:p.read_shift(4,"i"),clsid:p.read_shift(16),state:p.read_shift(4,"i"),start:0,size:0};var g=p.read_shift(2)+p.read_shift(2)+p.read_shift(2)+p.read_shift(2);if(g!==0)F.ct=w(p,p.l-8);var I=p.read_shift(2)+p.read_shift(2)+p.read_shift(2)+p.read_shift(2);if(I!==0)F.mt=w(p,p.l-8);F.start=p.read_shift(4,"i");F.size=p.read_shift(4,"i");if(F.size<0&&F.start<0){F.size=F.type=0;F.start=y;F.name=""}if(F.type===5){h=F.start;if(n>0&&h!==y)r[h].name="!StreamData"}else if(F.size>=4096){F.storage="fat";if(r[F.start]===undefined)r[F.start]=_(t,F.start,r.fat_addrs,r.ssz);r[F.start].name=F.name;F.content=r[F.start].data.slice(0,F.size)}else{F.storage="minifat";if(F.size<0)F.size=0;else if(h!==y&&F.start!==y&&r[h]){F.content=c(F,r[h].data,(r[s]||{}).data)}}if(F.content)prep_blob(F.content,0);a[v]=F;f.push(F)}}function w(e,r){return new Date((__readUInt32LE(e,r+4)/1e7*Math.pow(2,32)+__readUInt32LE(e,r)/1e7-11644473600)*1e3)}function p(e,r){a();return f(n.readFileSync(e),r)}function F(e,r){switch(r&&r.type||"base64"){case"file":return p(e,r);case"base64":return f(s2a(Base64.decode(e)),r);case"binary":return f(s2a(e),r);}return f(e,r)}function g(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;I(e)}function I(e){var r="
Sh33tJ5";if(CFB.find(e,"/"+r))return;var t=new_buf(4);t[0]=55;t[1]=t[3]=50;t[2]=54;e.FileIndex.push({name:r,type:2,content:t,size:4,L:69,R:69,C:69});e.FullPaths.push(e.FullPaths[0]+r);b(e)}function b(e,n){g(e);var a=false,f=false;for(var s=e.FullPaths.length-1;s>=0;--s){var h=e.FileIndex[s];switch(h.type){case 0:if(f)a=true;else{e.FileIndex.pop();e.FullPaths.pop()}break;case 1:;case 2:;case 5:f=true;if(isNaN(h.R*h.L*h.C))a=true;if(h.R>-1&&h.L>-1&&h.R==h.L)a=true;break;default:a=true;break;}}if(!a&&!n)return;var l=new Date(1987,1,19),o=0;var c=[];for(s=0;s<e.FullPaths.length;++s){if(e.FileIndex[s].type===0)continue;c.push([e.FullPaths[s],e.FileIndex[s]])}for(s=0;s<c.length;++s){var u=t(c[s][0]);f=false;for(o=0;o<c.length;++o)if(c[o][0]===u)f=true;if(!f)c.push([u,{name:i(u).replace("/",""),type:1,clsid:m,ct:l,mt:l,content:null}])}c.sort(function(e,t){return r(e[0],t[0])});e.FullPaths=[];e.FileIndex=[];for(s=0;s<c.length;++s){e.FullPaths[s]=c[s][0];e.FileIndex[s]=c[s][1]}for(s=0;s<c.length;++s){var _=e.FileIndex[s];var d=e.FullPaths[s];_.name=i(d).replace("/","");_.L=_.R=_.C=-(_.color=1);_.size=_.content?_.content.length:0;_.start=0;_.clsid=_.clsid||m;if(s===0){_.C=c.length>1?1:-1;_.size=0;_.type=5}else if(d.slice(-1)=="/"){for(o=s+1;o<c.length;++o)if(t(e.FullPaths[o])==d)break;_.C=o>=c.length?-1:o;for(o=s+1;o<c.length;++o)if(t(e.FullPaths[o])==t(d))break;_.R=o>=c.length?-1:o;_.type=1}else{if(t(e.FullPaths[s+1]||"")==t(d))_.R=s+1;_.type=2}}}function x(e,r){var t=r||{};b(e);var i=function(e){var r=0,t=0;for(var i=0;i<e.FileIndex.length;++i){var n=e.FileIndex[i];if(!n.content)continue;var a=n.content.length;if(a>0){if(a<4096)r+=a+63>>6;else t+=a+511>>9}}var f=e.FullPaths.length+3>>2;var s=r+7>>3;var h=r+127>>7;var l=s+t+f+h;var o=l+127>>7;var c=o<=109?0:Math.ceil((o-109)/127);while(l+o+c+127>>7>o)c=++o<=109?0:Math.ceil((o-109)/127);var u=[1,c,o,h,f,t,r,0];e.FileIndex[0].size=r<<6;u[7]=(e.FileIndex[0].start=u[0]+u[1]+u[2]+u[3]+u[4]+u[5])+(u[6]+7>>3);return u}(e);var n=new_buf(i[7]<<9);var a=0,f=0;{for(a=0;a<8;++a)n.write_shift(1,A[a]);for(a=0;a<8;++a)n.write_shift(2,0);n.write_shift(2,62);n.write_shift(2,3);n.write_shift(2,65534);n.write_shift(2,9);n.write_shift(2,6);for(a=0;a<3;++a)n.write_shift(2,0);n.write_shift(4,0);n.write_shift(4,i[2]);n.write_shift(4,i[0]+i[1]+i[2]+i[3]-1);n.write_shift(4,0);n.write_shift(4,1<<12);n.write_shift(4,i[3]?i[0]+i[1]+i[2]-1:y);n.write_shift(4,i[3]);n.write_shift(-4,i[1]?i[0]-1:y);n.write_shift(4,i[1]);for(a=0;a<109;++a)n.write_shift(-4,a<i[2]?i[1]+a:-1)}if(i[1]){for(f=0;f<i[1];++f){for(;a<236+f*127;++a)n.write_shift(-4,a<i[2]?i[1]+a:-1);n.write_shift(-4,f===i[1]-1?y:f+1)}}var s=function(e){for(f+=e;a<f-1;++a)n.write_shift(-4,a+1);if(e){++a;n.write_shift(-4,y)}};f=a=0;for(f+=i[1];a<f;++a)n.write_shift(-4,B.DIFSECT);for(f+=i[2];a<f;++a)n.write_shift(-4,B.FATSECT);s(i[3]);s(i[4]);var h=0,l=0;var o=e.FileIndex[0];for(;h<e.FileIndex.length;++h){o=e.FileIndex[h];if(!o.content)continue;l=o.content.length;if(l<4096)continue;o.start=f;s(l+511>>9)}s(i[6]+7>>3);while(n.l&511)n.write_shift(-4,B.ENDOFCHAIN);f=a=0;for(h=0;h<e.FileIndex.length;++h){o=e.FileIndex[h];if(!o.content)continue;l=o.content.length;if(!l||l>=4096)continue;o.start=f;s(l+63>>6)}while(n.l&511)n.write_shift(-4,B.ENDOFCHAIN);for(a=0;a<i[4]<<2;++a){var c=e.FullPaths[a];if(!c||c.length===0){for(h=0;h<17;++h)n.write_shift(4,0);for(h=0;h<3;++h)n.write_shift(4,-1);for(h=0;h<12;++h)n.write_shift(4,0);continue}o=e.FileIndex[a];if(a===0)o.start=o.size?o.start-1:y;var u=a===0&&t.root||o.name;l=2*(u.length+1);n.write_shift(64,u,"utf16le");n.write_shift(2,l);n.write_shift(1,o.type);n.write_shift(1,o.color);n.write_shift(-4,o.L);n.write_shift(-4,o.R);n.write_shift(-4,o.C);if(!o.clsid)for(h=0;h<4;++h)n.write_shift(4,0);else n.write_shift(16,o.clsid,"hex");n.write_shift(4,o.state||0);n.write_shift(4,0);n.write_shift(4,0);n.write_shift(4,0);n.write_shift(4,0);n.write_shift(4,o.start);n.write_shift(4,o.size);n.write_shift(4,0)}for(a=1;a<e.FileIndex.length;++a){o=e.FileIndex[a];if(o.size>=4096){n.l=o.start+1<<9;for(h=0;h<o.size;++h)n.write_shift(1,o.content[h]);for(;h&511;++h)n.write_shift(1,0)}}for(a=1;a<e.FileIndex.length;++a){o=e.FileIndex[a];if(o.size>0&&o.size<4096){for(h=0;h<o.size;++h)n.write_shift(1,o.content[h]);for(;h&63;++h)n.write_shift(1,0)}}while(n.l<n.length)n.write_shift(1,0);return n}function E(e,r){var t=e.FullPaths.map(function(e){return e.toUpperCase()});var i=t.map(function(e){var r=e.split("/");return r[r.length-(e.slice(-1)=="/"?2:1)]});var n=false;if(r.charCodeAt(0)===47){n=true;r=t[0].slice(0,-1)+r}else n=r.indexOf("/")!==-1;var a=r.toUpperCase();var f=n===true?t.indexOf(a):i.indexOf(a);if(f!==-1)return e.FileIndex[f];var s=!a.match(chr1);a=a.replace(chr0,"");if(s)a=a.replace(chr1,"!");for(f=0;f<t.length;++f){if((s?t[f].replace(chr1,"!"):t[f]).replace(chr0,"")==a)return e.FileIndex[f];if((s?i[f].replace(chr1,"!"):i[f]).replace(chr0,"")==a)return e.FileIndex[f]}return null}var C=64;var y=-2;var S="d0cf11e0a1b11ae1";var A=[208,207,17,224,161,177,26,225];var m="00000000000000000000000000000000";var B={MAXREGSECT:-6,DIFSECT:-4,FATSECT:-3,ENDOFCHAIN:y,FREESECT:-1,HEADER_SIGNATURE:S,HEADER_MINOR_VERSION:"3e00",MAXREGSID:-6,NOSTREAM:-1,HEADER_CLSID:m,EntryTypes:["unknown","storage","stream","lockbytes","property","root"]};function L(e,r,t){a();var i=x(e,t);n.writeFileSync(r,i)}function k(e){var r=new Array(e.length);for(var t=0;t<e.length;++t)r[t]=String.fromCharCode(e[t]);return r.join("")}function R(e,r){var t=x(e,r);switch(r&&r.type){case"file":a();n.writeFileSync(r.filename,t);return t;case"binary":return k(t);case"base64":return Base64.encode(k(t));}return t}function z(e){var r={};g(r,e);return r}function P(e,r,t,n){var a=n&&n.unsafe;if(!a)g(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}return f}function D(e,r){g(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 O(e,r,t){g(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 T(e){b(e,true)}e.find=E;e.read=F;e.parse=f;e.write=R;e.writeFile=L;e.utils={cfb_new:z,cfb_add:P,cfb_del:D,cfb_mov:O,cfb_gc:T,ReadShift:ReadShift,CheckField:CheckField,prep_blob:prep_blob,bconcat:bconcat,consts:B};return e}();if(typeof require!=="undefined"&&typeof module!=="undefined"&&typeof DO_NOT_EXPORT_CFB==="undefined"){module.exports=CFB}

dist/xlscfb.js

@@ -41,3 +41,3 @@ var DO_NOT_EXPORT_CFB = true;
 var exports/*:CFBModule*/ = /*::(*/{}/*:: :any)*/;
-exports.version = '1.0.5';
+exports.version = '1.0.6';
 /* [MS-CFB] 2.6.4 */
@@ -220,4 +220,4 @@ function namecmp(l/*:string*/, r/*:string*/)/*:number*/ {
 		if(C !== -1 /*NOSTREAM*/) dad[C] = i;
-		if(L !== -1) { dad[L] = dad[i]; q.push(L); }
-		if(R !== -1) { dad[R] = dad[i]; q.push(R); }
+		if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
+		if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
 	}
@@ -689,4 +689,5 @@ for(i=1; i < pl; ++i) if(dad[i] === i) {
 function cfb_add(cfb/*:CFBContainer*/, name/*:string*/, content/*:?RawBytes*/, opts/*:?any*/)/*:CFBEntry*/ {
-	init_cfb(cfb);
-	var file = CFB.find(cfb, name);
+	var unsafe = opts && opts.unsafe;
+	if(!unsafe) init_cfb(cfb);
+	var file = !unsafe && CFB.find(cfb, name);
 	if(!file) {
@@ -702,3 +703,3 @@ var fpath/*:string*/ = cfb.FullPaths[0];
 		cfb.FullPaths.push(fpath);
-		CFB.utils.cfb_gc(cfb);
+		if(!unsafe) CFB.utils.cfb_gc(cfb);
 	}
@@ -705,0 +706,0 @@ /*:: if(!file) throw new Error("unreachable"); */

package.json

 {
   "name": "cfb",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "author": "sheetjs",
@@ -5,0 +5,0 @@ "description": "Compound File Binary File Format extractor",

README.md

@@ -114,2 +114,3 @@ # Compound File Binary Format
 - `.cfb_add(cfb, name, ?content, ?opts)` adds a new file to the `cfb`.
+  Set the option `{unsafe:true}` to skip existence checks (for bulk additions)
 - `.cfb_del(cfb, name)` deletes the specified file
@@ -116,0 +117,0 @@ - `.cfb_mov(cfb, old_name, new_name)` moves the old file to new path and name

types/index.d.ts

@@ -94,6 +94,12 @@ /* index.d.ts (C) 2013-present SheetJS */
 
+/** cfb_add options */
+export interface CFB$AddOpts {
+    /** Skip existence and safety checks (best for bulk write operations) */
+    unsafe?: boolean;
+}
+
 /** General utilities */
 export interface CFB$Utils {
     cfb_new(opts?: any): CFB$Container;
-    cfb_add(cfb: CFB$Container, name: string, content: any, opts?: any): CFB$Entry;
+    cfb_add(cfb: CFB$Container, name: string, content: any, opts?: CFB$AddOpts): CFB$Entry;
     cfb_del(cfb: CFB$Container, name: string): boolean;
@@ -100,0 +106,0 @@ cfb_mov(cfb: CFB$Container, old_name: string, new_name: string): boolean;

xlscfb.flow.js

@@ -41,3 +41,3 @@ var DO_NOT_EXPORT_CFB = true;
 var exports/*:CFBModule*/ = /*::(*/{}/*:: :any)*/;
-exports.version = '1.0.5';
+exports.version = '1.0.6';
 /* [MS-CFB] 2.6.4 */
@@ -220,4 +220,4 @@ function namecmp(l/*:string*/, r/*:string*/)/*:number*/ {
 		if(C !== -1 /*NOSTREAM*/) dad[C] = i;
-		if(L !== -1) { dad[L] = dad[i]; q.push(L); }
-		if(R !== -1) { dad[R] = dad[i]; q.push(R); }
+		if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
+		if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
 	}
@@ -689,4 +689,5 @@ for(i=1; i < pl; ++i) if(dad[i] === i) {
 function cfb_add(cfb/*:CFBContainer*/, name/*:string*/, content/*:?RawBytes*/, opts/*:?any*/)/*:CFBEntry*/ {
-	init_cfb(cfb);
-	var file = CFB.find(cfb, name);
+	var unsafe = opts && opts.unsafe;
+	if(!unsafe) init_cfb(cfb);
+	var file = !unsafe && CFB.find(cfb, name);
 	if(!file) {
@@ -702,3 +703,3 @@ var fpath/*:string*/ = cfb.FullPaths[0];
 		cfb.FullPaths.push(fpath);
-		CFB.utils.cfb_gc(cfb);
+		if(!unsafe) CFB.utils.cfb_gc(cfb);
 	}
@@ -705,0 +706,0 @@ /*:: if(!file) throw new Error("unreachable"); */

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Improved metrics

Total package byte prevSize

167191

increased by0.62%

Lines of code

3121

increased by0.29%

Number of lines in readme file

157

increased by0.64%

No dependency changes