multicodec/dist/index.min.js

JavaScript implementation of the multicodec specification

(function (root, factory) {(typeof module === 'object' && module.exports) ? module.exports = factory() : root.Multicodec = factory()}(typeof self !== 'undefined' ? self : this, function () {
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Bt=b({prefix:"0",name:"base2",alphabet:"01",bitsPerChar:1});var te={};h(te,{base8:()=>qt});var qt=b({prefix:"7",name:"base8",alphabet:"01234567",bitsPerChar:3});var re={};h(re,{base10:()=>Lt});var Lt=S({prefix:"9",name:"base10",alphabet:"0123456789"});var ne={};h(ne,{base16:()=>Rt,base16upper:()=>$t});var Rt=b({prefix:"f",name:"base16",alphabet:"0123456789abcdef",bitsPerChar:4}),$t=b({prefix:"F",name:"base16upper",alphabet:"0123456789ABCDEF",bitsPerChar:4});var se={};h(se,{base32:()=>z,base32hex:()=>_t,base32hexpad:()=>Kt,base32hexpadupper:()=>Qt,base32hexupper:()=>Gt,base32pad:()=>Jt,base32padupper:()=>Xt,base32upper:()=>Pt,base32z:()=>Ht});var z=b({prefix:"b",name:"base32",alphabet:"abcdefghijklmnopqrstuvwxyz234567",bitsPerChar:5}),Pt=b({prefix:"B",name:"base32upper",alphabet:"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567",bitsPerChar:5}),Jt=b({prefix:"c",name:"base32pad",alphabet:"abcdefghijklmnopqrstuvwxyz234567=",bitsPerChar:5}),Xt=b({prefix:"C",name:"base32padupper",alphabet:"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567=",bitsPerChar:5}),_t=b({prefix:"v",name:"base32hex",alphabet:"0123456789abcdefghijklmnopqrstuv",bitsPerChar:5}),Gt=b({prefix:"V",name:"base32hexupper",alphabet:"0123456789ABCDEFGHIJKLMNOPQRSTUV",bitsPerChar:5}),Kt=b({prefix:"t",name:"base32hexpad",alphabet:"0123456789abcdefghijklmnopqrstuv=",bitsPerChar:5}),Qt=b({prefix:"T",name:"base32hexpadupper",alphabet:"0123456789ABCDEFGHIJKLMNOPQRSTUV=",bitsPerChar:5}),Ht=b({prefix:"h",name:"base32z",alphabet:"ybndrfg8ejkmcpqxot1uwisza345h769",bitsPerChar:5});var ie={};h(ie,{base36:()=>Wt,base36upper:()=>Zt});var Wt=S({prefix:"k",name:"base36",alphabet:"0123456789abcdefghijklmnopqrstuvwxyz"}),Zt=S({prefix:"K",name:"base36upper",alphabet:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"});var oe={};h(oe,{base58btc:()=>v,base58flickr:()=>Yt});var v=S({name:"base58btc",prefix:"z",alphabet:"123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"}),Yt=S({name:"base58flickr",prefix:"Z",alphabet:"123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"});var ae={};h(ae,{base64:()=>er,base64pad:()=>tr,base64url:()=>rr,base64urlpad:()=>nr});var er=b({prefix:"m",name:"base64",alphabet:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",bitsPerChar:6}),tr=b({prefix:"M",name:"base64pad",alphabet:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",bitsPerChar:6}),rr=b({prefix:"u",name:"base64url",alphabet:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_",bitsPerChar:6}),nr=b({prefix:"U",name:"base64urlpad",alphabet:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=",bitsPerChar:6});var ce={};h(ce,{sha256:()=>vr,sha512:()=>Er});var sr=Ve,Be=128,ir=127,or=~ir,ar=Math.pow(2,31);function Ve(t,e,r){e=e||[],r=r||0;for(var n=r;t>=ar;)e[r++]=t&255|Be,t/=128;for(;t&or;)e[r++]=t&255|Be,t>>>=7;return e[r]=t|0,Ve.bytes=r-n+1,e}var br=be,cr=128,qe=127;function be(t,e){var r=0,e=e||0,n=0,s=e,i,a=t.length;do{if(s>=a)throw be.bytes=0,new RangeError("Could not decode varint");i=t[s++],r+=n<28?(i&qe)<<n:(i&qe)*Math.pow(2,n),n+=7}while(i>=cr);return be.bytes=s-e,r}var xr=Math.pow(2,7),dr=Math.pow(2,14),pr=Math.pow(2,21),hr=Math.pow(2,28),fr=Math.pow(2,35),kr=Math.pow(2,42),lr=Math.pow(2,49),ur=Math.pow(2,56),mr=Math.pow(2,63),wr=function(t){return t<xr?1:t<dr?2:t<pr?3:t<hr?4:t<fr?5:t<kr?6:t<lr?7:t<ur?8:t<mr?9:10},gr={encode:sr,decode:br,encodingLength:wr},yr=gr,T=yr;var I=t=>[T.decode(t),T.decode.bytes],D=(t,e,r=0)=>(T.encode(t,e,r),e),M=t=>T.encodingLength(t);var $=(t,e)=>{let r=e.byteLength,n=M(t),s=n+M(r),i=new Uint8Array(s+r);return D(t,i,0),D(r,i,n),i.set(e,s),new O(t,r,e,i)},$e=t=>{let e=j(t),[r,n]=I(e),[s,i]=I(e.subarray(n)),a=e.subarray(n+i);if(a.byteLength!==s)throw new Error("Incorrect length");return new O(r,s,a,e)},Pe=(t,e)=>t===e?!0:t.code===e.code&&t.size===e.size&&De(t.bytes,e.bytes),O=class{constructor(e,r,n,s){this.code=e,this.size=r,this.digest=n,this.bytes=s}};var F=({name:t,code:e,encode:r})=>new Xe(t,e,r),Xe=class{constructor(e,r,n){this.name=e,this.code=r,this.encode=n}async digest(e){if(e instanceof Uint8Array){let r=await this.encode(e);return $(this.code,r)}else throw Error("Unknown type, must be binary type")}};var _e=t=>async e=>new Uint8Array(await crypto.subtle.digest(t,e)),vr=F({name:"sha2-256",code:18,encode:_e("SHA-256")}),Er=F({name:"sha2-512",code:19,encode:_e("SHA-512")});var xe={};h(xe,{identity:()=>jr});var jr=F({name:"identity",code:0,encode:t=>j(t)});var x=class{constructor(e,r,n,s){this.code=r,this.version=e,this.multihash=n,this.bytes=s,this.byteOffset=s.byteOffset,this.byteLength=s.byteLength,this.asCID=this,this._baseCache=new Map,Object.defineProperties(this,{byteOffset:J,byteLength:J,code:P,version:P,multihash:P,bytes:P,_baseCache:J,asCID:J})}toV0(){switch(this.version){case 0:return this;default:{let{code:e,multihash:r}=this;if(e!==V)throw new Error("Cannot convert a non dag-pb CID to CIDv0");if(r.code!==zr)throw new Error("Cannot convert non sha2-256 multihash CID to CIDv0");return x.createV0(r)}}}toV1(){switch(this.version){case 0:{let{code:e,digest:r}=this.multihash,n=$(e,r);return x.createV1(this.code,n)}case 1:return this;default:throw Error(`Can not convert CID version ${this.version} to version 0. This is a bug please report`)}}equals(e){return e&&this.code===e.code&&this.version===e.version&&Pe(this.multihash,e.multihash)}toString(e){let{bytes:r,version:n,_baseCache:s}=this;switch(n){case 0:return Nr(r,s,e||v.encoder);default:return Ur(r,s,e||z.encoder)}}toJSON(){return{code:this.code,version:this.version,hash:this.multihash.bytes}}get[Symbol.toStringTag](){return"CID"}[Symbol.for("nodejs.util.inspect.custom")](){return"CID("+this.toString()+")"}static isCID(e){return Dr(/^0\.0/,Mr),!!(e&&(e[Ke]||e.asCID===e))}get toBaseEncodedString(){throw new Error("Deprecated, use .toString()")}get codec(){throw new Error('"codec" property is deprecated, use integer "code" property instead')}get buffer(){throw new Error("Deprecated .buffer property, use .bytes to get Uint8Array instead")}get multibaseName(){throw new Error('"multibaseName" property is deprecated')}get prefix(){throw new Error('"prefix" property is deprecated')}static asCID(e){if(e instanceof x)return e;if(e!=null&&e.asCID===e){let{version:r,code:n,multihash:s,bytes:i}=e;return new x(r,n,s,i||Ge(r,n,s.bytes))}else if(e!=null&&e[Ke]===!0){let{version:r,multihash:n,code:s}=e,i=$e(n);return x.create(r,s,i)}else return null}static create(e,r,n){if(typeof r!="number")throw new Error("String codecs are no longer supported");switch(e){case 0:{if(r!==V)throw new Error(`Version 0 CID must use dag-pb (code: ${V}) block encoding`);return new x(e,r,n,n.bytes)}case 1:{let s=Ge(e,r,n.bytes);return new x(e,r,n,s)}default:throw new Error("Invalid version")}}static createV0(e){return x.create(0,V,e)}static createV1(e,r){return x.create(1,e,r)}static decode(e){let[r,n]=x.decodeFirst(e);if(n.length)throw new Error("Incorrect length");return r}static decodeFirst(e){let r=x.inspectBytes(e),n=r.size-r.multihashSize,s=j(e.subarray(n,n+r.multihashSize));if(s.byteLength!==r.multihashSize)throw new Error("Incorrect length");let i=s.subarray(r.multihashSize-r.digestSize),a=new O(r.multihashCode,r.digestSize,i,s);return[r.version===0?x.createV0(a):x.createV1(r.codec,a),e.subarray(r.size)]}static inspectBytes(e){let r=0,n=()=>{let[U,B]=I(e.subarray(r));return r+=B,U},s=n(),i=V;if(s===18?(s=0,r=0):s===1&&(i=n()),s!==0&&s!==1)throw new RangeError(`Invalid CID version ${s}`);let a=r,c=n(),d=n(),N=r+d,f=N-a;return{version:s,codec:i,multihashCode:c,digestSize:d,multihashSize:f,size:N}}static parse(e,r){let[n,s]=Ar(e,r),i=x.decode(s);return i._baseCache.set(n,e),i}},Ar=(t,e)=>{switch(t[0]){case"Q":{let r=e||v;return[v.prefix,r.decode(`${v.prefix}${t}`)]}case v.prefix:{let r=e||v;return[v.prefix,r.decode(t)]}case z.prefix:{let r=e||z;return[z.prefix,r.decode(t)]}default:{if(e==null)throw Error("To parse non base32 or base58btc encoded CID multibase decoder must be provided");return[t[0],e.decode(t)]}}},Nr=(t,e,r)=>{let{prefix:n}=r;if(n!==v.prefix)throw Error(`Cannot string encode V0 in ${r.name} encoding`);let s=e.get(n);if(s==null){let i=r.encode(t).slice(1);return e.set(n,i),i}else return s},Ur=(t,e,r)=>{let{prefix:n}=r,s=e.get(n);if(s==null){let i=r.encode(t);return e.set(n,i),i}else return s},V=112,zr=18,Ge=(t,e,r)=>{let n=M(t),s=n+M(e),i=new Uint8Array(s+r.byteLength);return D(t,i,0),D(e,i,n),i.set(r,s),i},Ke=Symbol.for("@ipld/js-cid/CID"),P={writable:!1,configurable:!1,enumerable:!0},J={writable:!1,enumerable:!1,configurable:!1},Tr="0.0.0-dev",Dr=(t,e)=>{if(t.test(Tr))console.warn(e);else throw new Error(e)},Mr=`CID.isCID(v) is deprecated and will be removed in the next major release.
Following code pattern:

if (CID.isCID(value)) {
  doSomethingWithCID(value)
}

Is replaced with:

const cid = CID.asCID(value)
if (cid) {
  // Make sure to use cid instead of value
  doSomethingWithCID(cid)
}
`;var de={...Y,...ee,...te,...re,...ne,...se,...ie,...oe,...ae},Jn={...ce,...xe};function Qe(t,e,r,n){return{name:t,prefix:e,encoder:{name:t,prefix:e,encode:r},decoder:{decode:n}}}var He=Qe("utf8","u",t=>{let e=new TextDecoder("utf8");return"u"+e.decode(t)},t=>new TextEncoder().encode(t.substring(1))),pe=Qe("ascii","a",t=>{let e="a";for(let r=0;r<t.length;r++)e+=String.fromCharCode(t[r]);return e},t=>{t=t.substring(1);let e=new Uint8Array(t.length);for(let r=0;r<t.length;r++)e[r]=t.charCodeAt(r);return e}),Ir={utf8:He,"utf-8":He,hex:de.base16,latin1:pe,ascii:pe,binary:pe,...de},X=Ir;return kt();})();
return Multicodec}));