1 line
5.5 KiB
JavaScript
1 line
5.5 KiB
JavaScript
var e=Uint8Array,t=Uint16Array,n=Int32Array,r=new e([0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0,0]),i=new e([0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,0,0]),a=new e([16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15]),o=function(e,r){for(var i=new t(31),a=0;a<31;++a)i[a]=r+=1<<e[a-1];for(var o=new n(i[30]),a=1;a<30;++a)for(var s=i[a];s<i[a+1];++s)o[s]=s-i[a]<<5|a;return{b:i,r:o}},s=o(r,2),c=s.b,l=s.r;c[28]=258,l[258]=28;var u=o(i,0),d=u.b;u.r;for(var f=new t(32768),p=0;p<32768;++p){var m=(p&43690)>>1|(p&21845)<<1;m=(m&52428)>>2|(m&13107)<<2,m=(m&61680)>>4|(m&3855)<<4,f[p]=((m&65280)>>8|(m&255)<<8)>>1}for(var h=(function(e,n,r){for(var i=e.length,a=0,o=new t(n);a<i;++a)e[a]&&++o[e[a]-1];var s=new t(n);for(a=1;a<n;++a)s[a]=s[a-1]+o[a-1]<<1;var c;if(r){c=new t(1<<n);var l=15-n;for(a=0;a<i;++a)if(e[a])for(var u=a<<4|e[a],d=n-e[a],p=s[e[a]-1]++<<d,m=p|(1<<d)-1;p<=m;++p)c[f[p]>>l]=u}else for(c=new t(i),a=0;a<i;++a)e[a]&&(c[a]=f[s[e[a]-1]++]>>15-e[a]);return c}),g=new e(288),p=0;p<144;++p)g[p]=8;for(var p=144;p<256;++p)g[p]=9;for(var p=256;p<280;++p)g[p]=7;for(var p=280;p<288;++p)g[p]=8;for(var _=new e(32),p=0;p<32;++p)_[p]=5;var v=h(g,9,1),ee=h(_,5,1),y=function(e){for(var t=e[0],n=1;n<e.length;++n)e[n]>t&&(t=e[n]);return t},b=function(e,t,n){var r=t/8|0;return(e[r]|e[r+1]<<8)>>(t&7)&n},x=function(e,t){var n=t/8|0;return(e[n]|e[n+1]<<8|e[n+2]<<16)>>(t&7)},te=function(e){return(e+7)/8|0},S=function(t,n,r){return(n==null||n<0)&&(n=0),(r==null||r>t.length)&&(r=t.length),new e(t.subarray(n,r))},C=[`unexpected EOF`,`invalid block type`,`invalid length/literal`,`invalid distance`,`stream finished`,`no stream handler`,,`no callback`,`invalid UTF-8 data`,`extra field too long`,`date not in range 1980-2099`,`filename too long`,`stream finishing`,`invalid zip data`],w=function(e,t,n){var r=Error(t||C[e]);if(r.code=e,Error.captureStackTrace&&Error.captureStackTrace(r,w),!n)throw r;return r},T=function(t,n,o,s){var l=t.length,u=s?s.length:0;if(!l||n.f&&!n.l)return o||new e(0);var f=!o,p=f||n.i!=2,m=n.i;f&&(o=new e(l*3));var g=function(t){var n=o.length;if(t>n){var r=new e(Math.max(n*2,t));r.set(o),o=r}},_=n.f||0,C=n.p||0,T=n.b||0,E=n.l,D=n.d,O=n.m,k=n.n,A=l*8;do{if(!E){_=b(t,C,1);var j=b(t,C+1,3);if(C+=3,!j){var M=te(C)+4,N=t[M-4]|t[M-3]<<8,P=M+N;if(P>l){m&&w(0);break}p&&g(T+N),o.set(t.subarray(M,P),T),n.b=T+=N,n.p=C=P*8,n.f=_;continue}else if(j==1)E=v,D=ee,O=9,k=5;else if(j==2){var F=b(t,C,31)+257,I=b(t,C+10,15)+4,L=F+b(t,C+5,31)+1;C+=14;for(var R=new e(L),z=new e(19),B=0;B<I;++B)z[a[B]]=b(t,C+B*3,7);C+=I*3;for(var V=y(z),ne=(1<<V)-1,re=h(z,V,1),B=0;B<L;){var H=re[b(t,C,ne)];C+=H&15;var M=H>>4;if(M<16)R[B++]=M;else{var U=0,W=0;for(M==16?(W=3+b(t,C,3),C+=2,U=R[B-1]):M==17?(W=3+b(t,C,7),C+=3):M==18&&(W=11+b(t,C,127),C+=7);W--;)R[B++]=U}}var G=R.subarray(0,F),K=R.subarray(F);O=y(G),k=y(K),E=h(G,O,1),D=h(K,k,1)}else w(1);if(C>A){m&&w(0);break}}p&&g(T+131072);for(var ie=(1<<O)-1,ae=(1<<k)-1,q=C;;q=C){var U=E[x(t,C)&ie],J=U>>4;if(C+=U&15,C>A){m&&w(0);break}if(U||w(2),J<256)o[T++]=J;else if(J==256){q=C,E=null;break}else{var Y=J-254;if(J>264){var B=J-257,X=r[B];Y=b(t,C,(1<<X)-1)+c[B],C+=X}var Z=D[x(t,C)&ae],Q=Z>>4;Z||w(3),C+=Z&15;var K=d[Q];if(Q>3){var X=i[Q];K+=x(t,C)&(1<<X)-1,C+=X}if(C>A){m&&w(0);break}p&&g(T+131072);var $=T+Y;if(T<K){var oe=u-K,se=Math.min(K,$);for(oe+T<0&&w(3);T<se;++T)o[T]=s[oe+T]}for(;T<$;++T)o[T]=o[T-K]}}n.l=E,n.p=q,n.b=T,n.f=_,E&&(_=1,n.m=O,n.d=D,n.n=k)}while(!_);return T!=o.length&&f?S(o,0,T):o.subarray(0,T)},E=new e(0),D=function(e,t){return e[t]|e[t+1]<<8},O=function(e,t){return(e[t]|e[t+1]<<8|e[t+2]<<16|e[t+3]<<24)>>>0},k=function(e,t){return O(e,t)+O(e,t+4)*4294967296},A=function(e,t){return((e[0]&15)!=8||e[0]>>4>7||(e[0]<<8|e[1])%31)&&w(6,`invalid zlib data`),(e[1]>>5&1)==+!t&&w(6,`invalid zlib data: `+(e[1]&32?`need`:`unexpected`)+` dictionary`),(e[1]>>3&4)+2};function j(e,t){return T(e,{i:2},t&&t.out,t&&t.dictionary)}function M(e,t){return T(e.subarray(A(e,t&&t.dictionary),-4),{i:2},t&&t.out,t&&t.dictionary)}var N=typeof TextDecoder<`u`&&new TextDecoder;try{N.decode(E,{stream:!0})}catch{}var P=function(e){for(var t=``,n=0;;){var r=e[n++],i=(r>127)+(r>223)+(r>239);if(n+i>e.length)return{s:t,r:S(e,n-1)};i?i==3?(r=((r&15)<<18|(e[n++]&63)<<12|(e[n++]&63)<<6|e[n++]&63)-65536,t+=String.fromCharCode(55296|r>>10,56320|r&1023)):i&1?t+=String.fromCharCode((r&31)<<6|e[n++]&63):t+=String.fromCharCode((r&15)<<12|(e[n++]&63)<<6|e[n++]&63):t+=String.fromCharCode(r)}};function F(e,t){if(t){for(var n=``,r=0;r<e.length;r+=16384)n+=String.fromCharCode.apply(null,e.subarray(r,r+16384));return n}else if(N)return N.decode(e);else{var i=P(e),a=i.s,n=i.r;return n.length&&w(8),a}}var I=function(e,t){return t+30+D(e,t+26)+D(e,t+28)},L=function(e,t,n){var r=D(e,t+28),i=F(e.subarray(t+46,t+46+r),!(D(e,t+8)&2048)),a=t+46+r,o=O(e,t+20),s=n&&o==4294967295?R(e,a):[o,O(e,t+24),O(e,t+42)],c=s[0],l=s[1],u=s[2];return[D(e,t+10),c,l,i,a+D(e,t+30)+D(e,t+32),u]},R=function(e,t){for(;D(e,t)!=1;t+=4+D(e,t+2));return[k(e,t+12),k(e,t+4),k(e,t+20)]};function z(t,n){for(var r={},i=t.length-22;O(t,i)!=101010256;--i)(!i||t.length-i>65558)&&w(13);var a=D(t,i+8);if(!a)return{};var o=O(t,i+16),s=o==4294967295||a==65535;if(s){var c=O(t,i-12);s=O(t,c)==101075792,s&&(a=O(t,c+32),o=O(t,c+48))}for(var l=n&&n.filter,u=0;u<a;++u){var d=L(t,o,s),f=d[0],p=d[1],m=d[2],h=d[3],g=d[4],_=d[5],v=I(t,_);o=g,(!l||l({name:h,size:p,originalSize:m,compression:f}))&&(f?f==8?r[h]=j(t.subarray(v,v+p),{out:new e(m)}):w(14,`unknown compression type `+f):r[h]=S(t,v,v+p))}return r}export{M as n,z as t}; |