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single-file-z-worker.js

single-file-z-worker.js 25 KB
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  1. !function(){const{Array:e,Object:t,Number:n,Math:r,Error:s,Uint8Array:a,Uint16Array:i,Uint32Array:o,Int32Array:l,Map:c,DataView:h,Promise:f,TextEncoder:u,crypto:p,postMessage:d,TransformStream:g,ReadableStream:w,WritableStream:v,CompressionStream:y,DecompressionStream:b}=self;class m{constructor(e){return class extends g{constructor(t,n){const r=new e(n);super({transform(e,t){t.enqueue(r.append(e))},flush(e){const t=r.flush();t&&e.enqueue(t)}})}}}}const _=[];for(let e=0;256>e;e++){let t=e;for(let e=0;8>e;e++)1&t?t=t>>>1^3988292384:t>>>=1;_[e]=t}class k{constructor(e){this.crc=e||-1}append(e){let t=0|this.crc;for(let n=0,r=0|e.length;r>n;n++)t=t>>>8^_[255&(t^e[n])];this.crc=t}get(){return~this.crc}}class S extends g{constructor(){let e;const t=new k;super({transform(e,n){t.append(e),n.enqueue(e)},flush(){const n=new a(4);new h(n.buffer).setUint32(0,t.get()),e.value=n}}),e=this}}const z={concat(e,t){if(0===e.length||0===t.length)return e.concat(t);const n=e[e.length-1],r=z.getPartial(n);return 32===r?e.concat(t):z._shiftRight(t,r,0|n,e.slice(0,e.length-1))},bitLength(e){const t=e.length;if(0===t)return 0;const n=e[t-1];return 32*(t-1)+z.getPartial(n)},clamp(e,t){if(32*e.length<t)return e;const n=(e=e.slice(0,r.ceil(t/32))).length;return t&=31,n>0&&t&&(e[n-1]=z.partial(t,e[n-1]&2147483648>>t-1,1)),e},partial:(e,t,n)=>32===e?t:(n?0|t:t<<32-e)+1099511627776*e,getPartial:e=>r.round(e/1099511627776)||32,_shiftRight(e,t,n,r){for(void 0===r&&(r=[]);t>=32;t-=32)r.push(n),n=0;if(0===t)return r.concat(e);for(let s=0;s<e.length;s++)r.push(n|e[s]>>>t),n=e[s]<<32-t;const s=e.length?e[e.length-1]:0,a=z.getPartial(s);return r.push(z.partial(t+a&31,t+a>32?n:r.pop(),1)),r}},D={bytes:{fromBits(e){const t=z.bitLength(e)/8,n=new a(t);let r;for(let s=0;t>s;s++)0==(3&s)&&(r=e[s/4]),n[s]=r>>>24,r<<=8;return n},toBits(e){const t=[];let n,r=0;for(n=0;n<e.length;n++)r=r<<8|e[n],3==(3&n)&&(t.push(r),r=0);return 3&n&&t.push(z.partial(8*(3&n),r)),t}}},C=class{constructor(e){const t=this;t.blockSize=512,t._init=[1732584193,4023233417,2562383102,271733878,3285377520],t._key=[1518500249,1859775393,2400959708,3395469782],e?(t._h=e._h.slice(0),t._buffer=e._buffer.slice(0),t._length=e._length):t.reset()}reset(){const e=this;return e._h=e._init.slice(0),e._buffer=[],e._length=0,e}update(e){const t=this;"string"==typeof e&&(e=D.utf8String.toBits(e));const n=t._buffer=z.concat(t._buffer,e),r=t._length,a=t._length=r+z.bitLength(e);if(a>9007199254740991)throw new s("Cannot hash more than 2^53 - 1 bits");const i=new o(n);let l=0;for(let e=t.blockSize+r-(t.blockSize+r&t.blockSize-1);a>=e;e+=t.blockSize)t._block(i.subarray(16*l,16*(l+1))),l+=1;return n.splice(0,16*l),t}finalize(){const e=this;let t=e._buffer;const n=e._h;t=z.concat(t,[z.partial(1,1)]);for(let e=t.length+2;15&e;e++)t.push(0);for(t.push(r.floor(e._length/4294967296)),t.push(0|e._length);t.length;)e._block(t.splice(0,16));return e.reset(),n}_f(e,t,n,r){return e>19?e>39?e>59?e>79?void 0:t^n^r:t&n|t&r|n&r:t^n^r:t&n|~t&r}_S(e,t){return t<<e|t>>>32-e}_block(t){const n=this,s=n._h,a=e(80);for(let e=0;16>e;e++)a[e]=t[e];let i=s[0],o=s[1],l=s[2],c=s[3],h=s[4];for(let e=0;79>=e;e++){16>e||(a[e]=n._S(1,a[e-3]^a[e-8]^a[e-14]^a[e-16]));const t=n._S(5,i)+n._f(e,o,l,c)+h+a[e]+n._key[r.floor(e/20)]|0;h=c,c=l,l=n._S(30,o),o=i,i=t}s[0]=s[0]+i|0,s[1]=s[1]+o|0,s[2]=s[2]+l|0,s[3]=s[3]+c|0,s[4]=s[4]+h|0}},I={getRandomValues(e){const t=new o(e.buffer),n=e=>{let t=987654321;const n=4294967295;return()=>(t=36969*(65535&t)+(t>>16)&n,(((t<<16)+(e=18e3*(65535&e)+(e>>16)&n)&n)/4294967296+.5)*(r.random()>.5?1:-1))};for(let s,a=0;a<e.length;a+=4){const e=n(4294967296*(s||r.random()));s=987654071*e(),t[a/4]=4294967296*e()|0}return e}},x={importKey:e=>new x.hmacSha1(D.bytes.toBits(e)),pbkdf2(e,t,n,r){if(n=n||1e4,0>r||0>n)throw new s("invalid params to pbkdf2");const a=1+(r>>5)<<2;let i,o,l,c,f;const u=new ArrayBuffer(a),p=new h(u);let d=0;const g=z;for(t=D.bytes.toBits(t),f=1;(a||1)>d;f++){for(i=o=e.encrypt(g.concat(t,[f])),l=1;n>l;l++)for(o=e.encrypt(o),c=0;c<o.length;c++)i[c]^=o[c];for(l=0;(a||1)>d&&l<i.length;l++)p.setInt32(d,i[l]),d+=4}return u.slice(0,r/8)},hmacSha1:class{constructor(e){const t=this,n=t._hash=C,r=[[],[]];t._baseHash=[new n,new n];const s=t._baseHash[0].blockSize/32;e.length>s&&(e=(new n).update(e).finalize());for(let t=0;s>t;t++)r[0][t]=909522486^e[t],r[1][t]=1549556828^e[t];t._baseHash[0].update(r[0]),t._baseHash[1].update(r[1]),t._resultHash=new n(t._baseHash[0])}reset(){const e=this;e._resultHash=new e._hash(e._baseHash[0]),e._updated=!1}update(e){this._updated=!0,this._resultHash.update(e)}digest(){const e=this,t=e._resultHash.finalize(),n=new e._hash(e._baseHash[1]).update(t).finalize();return e.reset(),n}encrypt(e){if(this._updated)throw new s("encrypt on already updated hmac called!");return this.update(e),this.digest(e)}}},A=void 0!==p&&"function"==typeof p.getRandomValues,T="Invalid password",R="Invalid signature",H="zipjs-abort-check-password";function q(e){return A?p.getRandomValues(e):I.getRandomValues(e)}const B=16,K={name:"PBKDF2"},V=t.assign({hash:{name:"HMAC"}},K),P=t.assign({iterations:1e3,hash:{name:"SHA-1"}},K),E=["deriveBits"],U=[8,12,16],W=[16,24,32],M=10,N=[0,0,0,0],O="undefined",F="function",L=typeof p!=O,j=L&&p.subtle,G=L&&typeof j!=O,X=D.bytes,J=class{constructor(e){const t=this;t._tables=[[[],[],[],[],[]],[[],[],[],[],[]]],t._tables[0][0][0]||t._precompute();const n=t._tables[0][4],r=t._tables[1],a=e.length;let i,o,l,c=1;if(4!==a&&6!==a&&8!==a)throw new s("invalid aes key size");for(t._key=[o=e.slice(0),l=[]],i=a;4*a+28>i;i++){let e=o[i-1];(i%a==0||8===a&&i%a==4)&&(e=n[e>>>24]<<24^n[e>>16&255]<<16^n[e>>8&255]<<8^n[255&e],i%a==0&&(e=e<<8^e>>>24^c<<24,c=c<<1^283*(c>>7))),o[i]=o[i-a]^e}for(let e=0;i;e++,i--){const t=o[3&e?i:i-4];l[e]=4>=i||4>e?t:r[0][n[t>>>24]]^r[1][n[t>>16&255]]^r[2][n[t>>8&255]]^r[3][n[255&t]]}}encrypt(e){return this._crypt(e,0)}decrypt(e){return this._crypt(e,1)}_precompute(){const e=this._tables[0],t=this._tables[1],n=e[4],r=t[4],s=[],a=[];let i,o,l,c;for(let e=0;256>e;e++)a[(s[e]=e<<1^283*(e>>7))^e]=e;for(let h=i=0;!n[h];h^=o||1,i=a[i]||1){let a=i^i<<1^i<<2^i<<3^i<<4;a=a>>8^255&a^99,n[h]=a,r[a]=h,c=s[l=s[o=s[h]]];let f=16843009*c^65537*l^257*o^16843008*h,u=257*s[a]^16843008*a;for(let n=0;4>n;n++)e[n][h]=u=u<<24^u>>>8,t[n][a]=f=f<<24^f>>>8}for(let n=0;5>n;n++)e[n]=e[n].slice(0),t[n]=t[n].slice(0)}_crypt(e,t){if(4!==e.length)throw new s("invalid aes block size");const n=this._key[t],r=n.length/4-2,a=[0,0,0,0],i=this._tables[t],o=i[0],l=i[1],c=i[2],h=i[3],f=i[4];let u,p,d,g=e[0]^n[0],w=e[t?3:1]^n[1],v=e[2]^n[2],y=e[t?1:3]^n[3],b=4;for(let e=0;r>e;e++)u=o[g>>>24]^l[w>>16&255]^c[v>>8&255]^h[255&y]^n[b],p=o[w>>>24]^l[v>>16&255]^c[y>>8&255]^h[255&g]^n[b+1],d=o[v>>>24]^l[y>>16&255]^c[g>>8&255]^h[255&w]^n[b+2],y=o[y>>>24]^l[g>>16&255]^c[w>>8&255]^h[255&v]^n[b+3],b+=4,g=u,w=p,v=d;for(let e=0;4>e;e++)a[t?3&-e:e]=f[g>>>24]<<24^f[w>>16&255]<<16^f[v>>8&255]<<8^f[255&y]^n[b++],u=g,g=w,w=v,v=y,y=u;return a}},Q=class{constructor(e,t){this._prf=e,this._initIv=t,this._iv=t}reset(){this._iv=this._initIv}update(e){return this.calculate(this._prf,e,this._iv)}incWord(e){if(255==(e>>24&255)){let t=e>>16&255,n=e>>8&255,r=255&e;255===t?(t=0,255===n?(n=0,255===r?r=0:++r):++n):++t,e=0,e+=t<<16,e+=n<<8,e+=r}else e+=1<<24;return e}incCounter(e){0===(e[0]=this.incWord(e[0]))&&(e[1]=this.incWord(e[1]))}calculate(e,t,n){let r;if(!(r=t.length))return[];const s=z.bitLength(t);for(let s=0;r>s;s+=4){this.incCounter(n);const r=e.encrypt(n);t[s]^=r[0],t[s+1]^=r[1],t[s+2]^=r[2],t[s+3]^=r[3]}return z.clamp(t,s)}},Y=x.hmacSha1;let Z=L&&G&&typeof j.importKey==F,$=L&&G&&typeof j.deriveBits==F;class ee extends g{constructor({password:e,signed:n,encryptionStrength:r,checkPasswordOnly:i}){super({start(){t.assign(this,{ready:new f((e=>this.resolveReady=e)),password:e,signed:n,strength:r-1,pending:new a})},async transform(e,t){const n=this,{password:r,strength:o,resolveReady:l,ready:c}=n;r?(await(async(e,t,n,r)=>{const a=await re(e,t,n,ae(r,0,U[t])),i=ae(r,U[t]);if(a[0]!=i[0]||a[1]!=i[1])throw new s(T)})(n,o,r,ae(e,0,U[o]+2)),e=ae(e,U[o]+2),i?t.error(new s(H)):l()):await c;const h=new a(e.length-M-(e.length-M)%B);t.enqueue(ne(n,e,h,0,M,!0))},async flush(e){const{signed:t,ctr:n,hmac:r,pending:i,ready:o}=this;await o;const l=ae(i,0,i.length-M),c=ae(i,i.length-M);let h=new a;if(l.length){const e=oe(X,l);r.update(e);const t=n.update(e);h=ie(X,t)}if(t){const e=ae(ie(X,r.digest()),0,M);for(let t=0;M>t;t++)if(e[t]!=c[t])throw new s(R)}e.enqueue(h)}})}}class te extends g{constructor({password:e,encryptionStrength:n}){let r;super({start(){t.assign(this,{ready:new f((e=>this.resolveReady=e)),password:e,strength:n-1,pending:new a})},async transform(e,t){const n=this,{password:r,strength:s,resolveReady:i,ready:o}=n;let l=new a;r?(l=await(async(e,t,n)=>{const r=q(new a(U[t]));return se(r,await re(e,t,n,r))})(n,s,r),i()):await o;const c=new a(l.length+e.length-e.length%B);c.set(l,0),t.enqueue(ne(n,e,c,l.length,0))},async flush(e){const{ctr:t,hmac:n,pending:s,ready:i}=this;await i;let o=new a;if(s.length){const e=t.update(oe(X,s));n.update(e),o=ie(X,e)}r.signature=ie(X,n.digest()).slice(0,M),e.enqueue(se(o,r.signature))}}),r=this}}function ne(e,t,n,r,s,i){const{ctr:o,hmac:l,pending:c}=e,h=t.length-s;let f;for(c.length&&(t=se(c,t),n=((e,t)=>{if(t&&t>e.length){const n=e;(e=new a(t)).set(n,0)}return e})(n,h-h%B)),f=0;h-B>=f;f+=B){const e=oe(X,ae(t,f,f+B));i&&l.update(e);const s=o.update(e);i||l.update(s),n.set(ie(X,s),f+r)}return e.pending=ae(t,f),n}async function re(n,r,s,i){n.password=null;const o=(e=>{if(void 0===u){const t=new a((e=unescape(encodeURIComponent(e))).length);for(let n=0;n<t.length;n++)t[n]=e.charCodeAt(n);return t}return(new u).encode(e)})(s),l=await(async(e,t,n,r,s)=>{if(!Z)return x.importKey(t);try{return await j.importKey("raw",t,n,!1,s)}catch(e){return Z=!1,x.importKey(t)}})(0,o,V,0,E),c=await(async(e,t,n)=>{if(!$)return x.pbkdf2(t,e.salt,P.iterations,n);try{return await j.deriveBits(e,t,n)}catch(r){return $=!1,x.pbkdf2(t,e.salt,P.iterations,n)}})(t.assign({salt:i},P),l,8*(2*W[r]+2)),h=new a(c),f=oe(X,ae(h,0,W[r])),p=oe(X,ae(h,W[r],2*W[r])),d=ae(h,2*W[r]);return t.assign(n,{keys:{key:f,authentication:p,passwordVerification:d},ctr:new Q(new J(f),e.from(N)),hmac:new Y(p)}),d}function se(e,t){let n=e;return e.length+t.length&&(n=new a(e.length+t.length),n.set(e,0),n.set(t,e.length)),n}function ae(e,t,n){return e.subarray(t,n)}function ie(e,t){return e.fromBits(t)}function oe(e,t){return e.toBits(t)}class le extends g{constructor({password:e,passwordVerification:n,checkPasswordOnly:r}){super({start(){t.assign(this,{password:e,passwordVerification:n}),ue(this,e)},transform(e,t){const n=this;if(n.password){const t=he(n,e.subarray(0,12));if(n.password=null,t[11]!=n.passwordVerification)throw new s(T);e=e.subarray(12)}r?t.error(new s(H)):t.enqueue(he(n,e))}})}}class ce extends g{constructor({password:e,passwordVerification:n}){super({start(){t.assign(this,{password:e,passwordVerification:n}),ue(this,e)},transform(e,t){const n=this;let r,s;if(n.password){n.password=null;const t=q(new a(12));t[11]=n.passwordVerification,r=new a(e.length+t.length),r.set(fe(n,t),0),s=12}else r=new a(e.length),s=0;r.set(fe(n,e),s),t.enqueue(r)}})}}function he(e,t){const n=new a(t.length);for(let r=0;r<t.length;r++)n[r]=de(e)^t[r],pe(e,n[r]);return n}function fe(e,t){const n=new a(t.length);for(let r=0;r<t.length;r++)n[r]=de(e)^t[r],pe(e,t[r]);return n}function ue(e,n){const r=[305419896,591751049,878082192];t.assign(e,{keys:r,crcKey0:new k(r[0]),crcKey2:new k(r[2])});for(let t=0;t<n.length;t++)pe(e,n.charCodeAt(t))}function pe(e,t){let[n,s,a]=e.keys;e.crcKey0.append([t]),n=~e.crcKey0.get(),s=we(r.imul(we(s+ge(n)),134775813)+1),e.crcKey2.append([s>>>24]),a=~e.crcKey2.get(),e.keys=[n,s,a]}function de(e){const t=2|e.keys[2];return ge(r.imul(t,1^t)>>>8)}function ge(e){return 255&e}function we(e){return 4294967295&e}const ve="deflate-raw";class ye extends g{constructor(e,{chunkSize:t,CompressionStream:n,CompressionStreamNative:r}){super({});const{compressed:s,encrypted:a,useCompressionStream:i,zipCrypto:o,signed:l,level:c}=e,f=this;let u,p,d=me(super.readable);a&&!o||!l||(u=new S,d=Se(d,u)),s&&(d=ke(d,i,{level:c,chunkSize:t},r,n)),a&&(o?d=Se(d,new ce(e)):(p=new te(e),d=Se(d,p))),_e(f,d,(()=>{let e;a&&!o&&(e=p.signature),a&&!o||!l||(e=new h(u.value.buffer).getUint32(0)),f.signature=e}))}}class be extends g{constructor(e,{chunkSize:t,DecompressionStream:n,DecompressionStreamNative:r}){super({});const{zipCrypto:a,encrypted:i,signed:o,signature:l,compressed:c,useCompressionStream:f}=e;let u,p,d=me(super.readable);i&&(a?d=Se(d,new le(e)):(p=new ee(e),d=Se(d,p))),c&&(d=ke(d,f,{chunkSize:t},r,n)),i&&!a||!o||(u=new S,d=Se(d,u)),_e(this,d,(()=>{if((!i||a)&&o){const e=new h(u.value.buffer);if(l!=e.getUint32(0,!1))throw new s(R)}}))}}function me(e){return Se(e,new g({transform(e,t){e&&e.length&&t.enqueue(e)}}))}function _e(e,n,r){n=Se(n,new g({flush:r})),t.defineProperty(e,"readable",{get:()=>n})}function ke(e,t,n,r,s){try{e=Se(e,new(t&&r?r:s)(ve,n))}catch(r){if(!t)throw r;e=Se(e,new s(ve,n))}return e}function Se(e,t){return e.pipeThrough(t)}const ze="data";class De extends g{constructor(e,n){super({});const r=this,{codecType:s}=e;let a;s.startsWith("deflate")?a=ye:s.startsWith("inflate")&&(a=be);let i=0;const o=new a(e,n),l=super.readable,c=new g({transform(e,t){e&&e.length&&(i+=e.length,t.enqueue(e))},flush(){const{signature:e}=o;t.assign(r,{signature:e,size:i})}});t.defineProperty(r,"readable",{get:()=>l.pipeThrough(o).pipeThrough(c)})}}const Ce=new c,Ie=new c;let xe=0;async function Ae(e){try{const{options:t,scripts:r,config:s}=e;r&&r.length&&importScripts.apply(void 0,r),self.initCodec&&self.initCodec(),s.CompressionStreamNative=self.CompressionStream,s.DecompressionStreamNative=self.DecompressionStream,self.Deflate&&(s.CompressionStream=new m(self.Deflate)),self.Inflate&&(s.DecompressionStream=new m(self.Inflate));const a={highWaterMark:1,size:()=>s.chunkSize},i=e.readable||new w({async pull(e){const t=new f((e=>Ce.set(xe,e)));Te({type:"pull",messageId:xe}),xe=(xe+1)%n.MAX_SAFE_INTEGER;const{value:r,done:s}=await t;e.enqueue(r),s&&e.close()}},a),o=e.writable||new v({async write(e){let t;const r=new f((e=>t=e));Ie.set(xe,t),Te({type:ze,value:e,messageId:xe}),xe=(xe+1)%n.MAX_SAFE_INTEGER,await r}},a),l=new De(t,s);await i.pipeThrough(l).pipeTo(o,{preventClose:!0,preventAbort:!0});try{await o.getWriter().close()}catch(e){}const{signature:c,size:h}=l;Te({type:"close",result:{signature:c,size:h}})}catch(e){Re(e)}}function Te(e){let{value:t}=e;if(t)if(t.length)try{t=new a(t),e.value=t.buffer,d(e,[e.value])}catch(t){d(e)}else d(e);else d(e)}function Re(e=new s("Unknown error")){const{message:t,stack:n,code:r,name:a}=e;d({error:{message:t,stack:n,code:r,name:a}})}addEventListener("message",(({data:e})=>{const{type:t,messageId:n,value:r,done:s}=e;try{if("start"==t&&Ae(e),t==ze){const e=Ce.get(n);Ce.delete(n),e({value:new a(r),done:s})}if("ack"==t){const e=Ie.get(n);Ie.delete(n),e()}}catch(e){Re(e)}}));var He=a,qe=i,Be=l,Ke=new He([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]),Ve=new He([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]),Pe=new He([16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15]),Ee=(e,t)=>{for(var n=new qe(31),r=0;31>r;++r)n[r]=t+=1<<e[r-1];var s=new Be(n[30]);for(r=1;30>r;++r)for(var a=n[r];a<n[r+1];++a)s[a]=a-n[r]<<5|r;return{b:n,r:s}},Ue=Ee(Ke,2),We=Ue.b,Me=Ue.r;We[28]=258,Me[258]=28;for(var Ne=Ee(Ve,0),Oe=Ne.b,Fe=Ne.r,Le=new qe(32768),je=0;32768>je;++je){var 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