multihashes
Advanced tools
Comparing version 0.3.0 to 0.3.1
@@ -1,2 +0,2 @@ | ||
var Multihashes=function(modules){function __webpack_require__(moduleId){if(installedModules[moduleId])return installedModules[moduleId].exports;var module=installedModules[moduleId]={i:moduleId,l:!1,exports:{}};return modules[moduleId].call(module.exports,module,module.exports,__webpack_require__),module.l=!0,module.exports}var installedModules={};return __webpack_require__.m=modules,__webpack_require__.c=installedModules,__webpack_require__.i=function(value){return value},__webpack_require__.d=function(exports,name,getter){Object.defineProperty(exports,name,{configurable:!1,enumerable:!0,get:getter})},__webpack_require__.n=function(module){var getter=module&&module.__esModule?function(){return module.default}:function(){return module};return __webpack_require__.d(getter,"a",getter),getter},__webpack_require__.o=function(object,property){return Object.prototype.hasOwnProperty.call(object,property)},__webpack_require__.p="",__webpack_require__(__webpack_require__.s=9)}([function(module,exports,__webpack_require__){"use strict";(function(Buffer,global){function typedArraySupport(){try{var arr=new Uint8Array(1);return arr.__proto__={__proto__:Uint8Array.prototype,foo:function(){return 42}},42===arr.foo()&&"function"==typeof arr.subarray&&0===arr.subarray(1,1).byteLength}catch(e){return!1}}function kMaxLength(){return Buffer.TYPED_ARRAY_SUPPORT?2147483647:1073741823}function createBuffer(that,length){if(kMaxLength()<length)throw new RangeError("Invalid typed array length");return Buffer.TYPED_ARRAY_SUPPORT?(that=new Uint8Array(length),that.__proto__=Buffer.prototype):(null===that&&(that=new Buffer(length)),that.length=length),that}function Buffer(arg,encodingOrOffset,length){if(!(Buffer.TYPED_ARRAY_SUPPORT||this instanceof Buffer))return new Buffer(arg,encodingOrOffset,length);if("number"==typeof arg){if("string"==typeof encodingOrOffset)throw new Error("If encoding is specified then the first argument must be a string");return allocUnsafe(this,arg)}return from(this,arg,encodingOrOffset,length)}function from(that,value,encodingOrOffset,length){if("number"==typeof value)throw new TypeError('"value" argument must not be a number');return"undefined"!=typeof ArrayBuffer&&value instanceof ArrayBuffer?fromArrayBuffer(that,value,encodingOrOffset,length):"string"==typeof value?fromString(that,value,encodingOrOffset):fromObject(that,value)}function assertSize(size){if("number"!=typeof size)throw new TypeError('"size" argument must be a number');if(size<0)throw new RangeError('"size" argument must not be negative')}function alloc(that,size,fill,encoding){return assertSize(size),size<=0?createBuffer(that,size):void 0!==fill?"string"==typeof encoding?createBuffer(that,size).fill(fill,encoding):createBuffer(that,size).fill(fill):createBuffer(that,size)}function allocUnsafe(that,size){if(assertSize(size),that=createBuffer(that,size<0?0:0|checked(size)),!Buffer.TYPED_ARRAY_SUPPORT)for(var i=0;i<size;++i)that[i]=0;return that}function fromString(that,string,encoding){if("string"==typeof encoding&&""!==encoding||(encoding="utf8"),!Buffer.isEncoding(encoding))throw new TypeError('"encoding" must be a valid string encoding');var length=0|byteLength(string,encoding);that=createBuffer(that,length);var actual=that.write(string,encoding);return actual!==length&&(that=that.slice(0,actual)),that}function fromArrayLike(that,array){var length=array.length<0?0:0|checked(array.length);that=createBuffer(that,length);for(var i=0;i<length;i+=1)that[i]=255&array[i];return that}function fromArrayBuffer(that,array,byteOffset,length){if(array.byteLength,byteOffset<0||array.byteLength<byteOffset)throw new RangeError("'offset' is out of bounds");if(array.byteLength<byteOffset+(length||0))throw new RangeError("'length' is out of bounds");return array=void 0===byteOffset&&void 0===length?new Uint8Array(array):void 0===length?new Uint8Array(array,byteOffset):new Uint8Array(array,byteOffset,length),Buffer.TYPED_ARRAY_SUPPORT?(that=array,that.__proto__=Buffer.prototype):that=fromArrayLike(that,array),that}function fromObject(that,obj){if(Buffer.isBuffer(obj)){var len=0|checked(obj.length);return that=createBuffer(that,len),0===that.length?that:(obj.copy(that,0,0,len),that)}if(obj){if("undefined"!=typeof ArrayBuffer&&obj.buffer instanceof ArrayBuffer||"length"in obj)return"number"!=typeof obj.length||isnan(obj.length)?createBuffer(that,0):fromArrayLike(that,obj);if("Buffer"===obj.type&&isArray(obj.data))return fromArrayLike(that,obj.data)}throw new TypeError("First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.")}function checked(length){if(length>=kMaxLength())throw new RangeError("Attempt to allocate Buffer larger than maximum size: 0x"+kMaxLength().toString(16)+" bytes");return 0|length}function SlowBuffer(length){return+length!=length&&(length=0),Buffer.alloc(+length)}function byteLength(string,encoding){if(Buffer.isBuffer(string))return string.length;if("undefined"!=typeof ArrayBuffer&&"function"==typeof ArrayBuffer.isView&&(ArrayBuffer.isView(string)||string instanceof ArrayBuffer))return string.byteLength;"string"!=typeof string&&(string=""+string);var len=string.length;if(0===len)return 0;for(var loweredCase=!1;;)switch(encoding){case"ascii":case"latin1":case"binary":return len;case"utf8":case"utf-8":case void 0:return utf8ToBytes(string).length;case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return 2*len;case"hex":return len>>>1;case"base64":return base64ToBytes(string).length;default:if(loweredCase)return utf8ToBytes(string).length;encoding=(""+encoding).toLowerCase(),loweredCase=!0}}function slowToString(encoding,start,end){var loweredCase=!1;if((void 0===start||start<0)&&(start=0),start>this.length)return"";if((void 0===end||end>this.length)&&(end=this.length),end<=0)return"";if(end>>>=0,start>>>=0,end<=start)return"";for(encoding||(encoding="utf8");;)switch(encoding){case"hex":return hexSlice(this,start,end);case"utf8":case"utf-8":return utf8Slice(this,start,end);case"ascii":return asciiSlice(this,start,end);case"latin1":case"binary":return latin1Slice(this,start,end);case"base64":return base64Slice(this,start,end);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return utf16leSlice(this,start,end);default:if(loweredCase)throw new TypeError("Unknown encoding: "+encoding);encoding=(encoding+"").toLowerCase(),loweredCase=!0}}function swap(b,n,m){var i=b[n];b[n]=b[m],b[m]=i}function bidirectionalIndexOf(buffer,val,byteOffset,encoding,dir){if(0===buffer.length)return-1;if("string"==typeof byteOffset?(encoding=byteOffset,byteOffset=0):byteOffset>2147483647?byteOffset=2147483647:byteOffset<-2147483648&&(byteOffset=-2147483648),byteOffset=+byteOffset,isNaN(byteOffset)&&(byteOffset=dir?0:buffer.length-1),byteOffset<0&&(byteOffset=buffer.length+byteOffset),byteOffset>=buffer.length){if(dir)return-1;byteOffset=buffer.length-1}else if(byteOffset<0){if(!dir)return-1;byteOffset=0}if("string"==typeof val&&(val=Buffer.from(val,encoding)),Buffer.isBuffer(val))return 0===val.length?-1:arrayIndexOf(buffer,val,byteOffset,encoding,dir);if("number"==typeof val)return val&=255,Buffer.TYPED_ARRAY_SUPPORT&&"function"==typeof Uint8Array.prototype.indexOf?dir?Uint8Array.prototype.indexOf.call(buffer,val,byteOffset):Uint8Array.prototype.lastIndexOf.call(buffer,val,byteOffset):arrayIndexOf(buffer,[val],byteOffset,encoding,dir);throw new TypeError("val must be string, number or Buffer")}function arrayIndexOf(arr,val,byteOffset,encoding,dir){function read(buf,i){return 1===indexSize?buf[i]:buf.readUInt16BE(i*indexSize)}var indexSize=1,arrLength=arr.length,valLength=val.length;if(void 0!==encoding&&(encoding=String(encoding).toLowerCase(),"ucs2"===encoding||"ucs-2"===encoding||"utf16le"===encoding||"utf-16le"===encoding)){if(arr.length<2||val.length<2)return-1;indexSize=2,arrLength/=2,valLength/=2,byteOffset/=2}var i;if(dir){var foundIndex=-1;for(i=byteOffset;i<arrLength;i++)if(read(arr,i)===read(val,foundIndex===-1?0:i-foundIndex)){if(foundIndex===-1&&(foundIndex=i),i-foundIndex+1===valLength)return foundIndex*indexSize}else foundIndex!==-1&&(i-=i-foundIndex),foundIndex=-1}else for(byteOffset+valLength>arrLength&&(byteOffset=arrLength-valLength),i=byteOffset;i>=0;i--){for(var found=!0,j=0;j<valLength;j++)if(read(arr,i+j)!==read(val,j)){found=!1;break}if(found)return i}return-1}function hexWrite(buf,string,offset,length){offset=Number(offset)||0;var remaining=buf.length-offset;length?(length=Number(length),length>remaining&&(length=remaining)):length=remaining;var strLen=string.length;if(strLen%2!==0)throw new TypeError("Invalid hex string");length>strLen/2&&(length=strLen/2);for(var i=0;i<length;++i){var parsed=parseInt(string.substr(2*i,2),16);if(isNaN(parsed))return i;buf[offset+i]=parsed}return i}function utf8Write(buf,string,offset,length){return blitBuffer(utf8ToBytes(string,buf.length-offset),buf,offset,length)}function asciiWrite(buf,string,offset,length){return blitBuffer(asciiToBytes(string),buf,offset,length)}function latin1Write(buf,string,offset,length){return asciiWrite(buf,string,offset,length)}function base64Write(buf,string,offset,length){return blitBuffer(base64ToBytes(string),buf,offset,length)}function ucs2Write(buf,string,offset,length){return blitBuffer(utf16leToBytes(string,buf.length-offset),buf,offset,length)}function base64Slice(buf,start,end){return 0===start&&end===buf.length?base64.fromByteArray(buf):base64.fromByteArray(buf.slice(start,end))}function utf8Slice(buf,start,end){end=Math.min(buf.length,end);for(var res=[],i=start;i<end;){var firstByte=buf[i],codePoint=null,bytesPerSequence=firstByte>239?4:firstByte>223?3:firstByte>191?2:1;if(i+bytesPerSequence<=end){var secondByte,thirdByte,fourthByte,tempCodePoint;switch(bytesPerSequence){case 1:firstByte<128&&(codePoint=firstByte);break;case 2:secondByte=buf[i+1],128===(192&secondByte)&&(tempCodePoint=(31&firstByte)<<6|63&secondByte,tempCodePoint>127&&(codePoint=tempCodePoint));break;case 3:secondByte=buf[i+1],thirdByte=buf[i+2],128===(192&secondByte)&&128===(192&thirdByte)&&(tempCodePoint=(15&firstByte)<<12|(63&secondByte)<<6|63&thirdByte,tempCodePoint>2047&&(tempCodePoint<55296||tempCodePoint>57343)&&(codePoint=tempCodePoint));break;case 4:secondByte=buf[i+1],thirdByte=buf[i+2],fourthByte=buf[i+3],128===(192&secondByte)&&128===(192&thirdByte)&&128===(192&fourthByte)&&(tempCodePoint=(15&firstByte)<<18|(63&secondByte)<<12|(63&thirdByte)<<6|63&fourthByte,tempCodePoint>65535&&tempCodePoint<1114112&&(codePoint=tempCodePoint))}}null===codePoint?(codePoint=65533,bytesPerSequence=1):codePoint>65535&&(codePoint-=65536,res.push(codePoint>>>10&1023|55296),codePoint=56320|1023&codePoint),res.push(codePoint),i+=bytesPerSequence}return decodeCodePointsArray(res)}function decodeCodePointsArray(codePoints){var len=codePoints.length;if(len<=MAX_ARGUMENTS_LENGTH)return String.fromCharCode.apply(String,codePoints);for(var res="",i=0;i<len;)res+=String.fromCharCode.apply(String,codePoints.slice(i,i+=MAX_ARGUMENTS_LENGTH));return res}function asciiSlice(buf,start,end){var ret="";end=Math.min(buf.length,end);for(var i=start;i<end;++i)ret+=String.fromCharCode(127&buf[i]);return ret}function latin1Slice(buf,start,end){var ret="";end=Math.min(buf.length,end);for(var i=start;i<end;++i)ret+=String.fromCharCode(buf[i]);return ret}function hexSlice(buf,start,end){var len=buf.length;(!start||start<0)&&(start=0),(!end||end<0||end>len)&&(end=len);for(var out="",i=start;i<end;++i)out+=toHex(buf[i]);return out}function utf16leSlice(buf,start,end){for(var bytes=buf.slice(start,end),res="",i=0;i<bytes.length;i+=2)res+=String.fromCharCode(bytes[i]+256*bytes[i+1]);return res}function checkOffset(offset,ext,length){if(offset%1!==0||offset<0)throw new RangeError("offset is not uint");if(offset+ext>length)throw new RangeError("Trying to access beyond buffer length")}function checkInt(buf,value,offset,ext,max,min){if(!Buffer.isBuffer(buf))throw new TypeError('"buffer" argument must be a Buffer instance');if(value>max||value<min)throw new RangeError('"value" argument is out of bounds');if(offset+ext>buf.length)throw new RangeError("Index out of range")}function objectWriteUInt16(buf,value,offset,littleEndian){value<0&&(value=65535+value+1);for(var i=0,j=Math.min(buf.length-offset,2);i<j;++i)buf[offset+i]=(value&255<<8*(littleEndian?i:1-i))>>>8*(littleEndian?i:1-i)}function objectWriteUInt32(buf,value,offset,littleEndian){value<0&&(value=4294967295+value+1);for(var i=0,j=Math.min(buf.length-offset,4);i<j;++i)buf[offset+i]=value>>>8*(littleEndian?i:3-i)&255}function checkIEEE754(buf,value,offset,ext,max,min){if(offset+ext>buf.length)throw new RangeError("Index out of range");if(offset<0)throw new RangeError("Index out of range")}function writeFloat(buf,value,offset,littleEndian,noAssert){return noAssert||checkIEEE754(buf,value,offset,4,3.4028234663852886e38,-3.4028234663852886e38),ieee754.write(buf,value,offset,littleEndian,23,4),offset+4}function writeDouble(buf,value,offset,littleEndian,noAssert){return noAssert||checkIEEE754(buf,value,offset,8,1.7976931348623157e308,-1.7976931348623157e308),ieee754.write(buf,value,offset,littleEndian,52,8),offset+8}function base64clean(str){if(str=stringtrim(str).replace(INVALID_BASE64_RE,""),str.length<2)return"";for(;str.length%4!==0;)str+="=";return str}function stringtrim(str){return str.trim?str.trim():str.replace(/^\s+|\s+$/g,"")}function toHex(n){return n<16?"0"+n.toString(16):n.toString(16)}function utf8ToBytes(string,units){units=units||1/0;for(var codePoint,length=string.length,leadSurrogate=null,bytes=[],i=0;i<length;++i){if(codePoint=string.charCodeAt(i),codePoint>55295&&codePoint<57344){if(!leadSurrogate){if(codePoint>56319){(units-=3)>-1&&bytes.push(239,191,189);continue}if(i+1===length){(units-=3)>-1&&bytes.push(239,191,189);continue}leadSurrogate=codePoint;continue}if(codePoint<56320){(units-=3)>-1&&bytes.push(239,191,189),leadSurrogate=codePoint;continue}codePoint=(leadSurrogate-55296<<10|codePoint-56320)+65536}else leadSurrogate&&(units-=3)>-1&&bytes.push(239,191,189);if(leadSurrogate=null,codePoint<128){if((units-=1)<0)break;bytes.push(codePoint)}else if(codePoint<2048){if((units-=2)<0)break;bytes.push(codePoint>>6|192,63&codePoint|128)}else if(codePoint<65536){if((units-=3)<0)break;bytes.push(codePoint>>12|224,codePoint>>6&63|128,63&codePoint|128)}else{if(!(codePoint<1114112))throw new Error("Invalid code point");if((units-=4)<0)break;bytes.push(codePoint>>18|240,codePoint>>12&63|128,codePoint>>6&63|128,63&codePoint|128)}}return bytes}function asciiToBytes(str){for(var byteArray=[],i=0;i<str.length;++i)byteArray.push(255&str.charCodeAt(i));return byteArray}function utf16leToBytes(str,units){for(var c,hi,lo,byteArray=[],i=0;i<str.length&&!((units-=2)<0);++i)c=str.charCodeAt(i),hi=c>>8,lo=c%256,byteArray.push(lo),byteArray.push(hi);return byteArray}function base64ToBytes(str){return base64.toByteArray(base64clean(str))}function blitBuffer(src,dst,offset,length){for(var i=0;i<length&&!(i+offset>=dst.length||i>=src.length);++i)dst[i+offset]=src[i];return i}function isnan(val){return val!==val}var base64=__webpack_require__(3),ieee754=__webpack_require__(5),isArray=__webpack_require__(6);exports.Buffer=Buffer,exports.SlowBuffer=SlowBuffer,exports.INSPECT_MAX_BYTES=50,Buffer.TYPED_ARRAY_SUPPORT=void 0!==global.TYPED_ARRAY_SUPPORT?global.TYPED_ARRAY_SUPPORT:typedArraySupport(),exports.kMaxLength=kMaxLength(),Buffer.poolSize=8192,Buffer._augment=function(arr){return arr.__proto__=Buffer.prototype,arr},Buffer.from=function(value,encodingOrOffset,length){return from(null,value,encodingOrOffset,length)},Buffer.TYPED_ARRAY_SUPPORT&&(Buffer.prototype.__proto__=Uint8Array.prototype,Buffer.__proto__=Uint8Array,"undefined"!=typeof Symbol&&Symbol.species&&Buffer[Symbol.species]===Buffer&&Object.defineProperty(Buffer,Symbol.species,{value:null,configurable:!0})),Buffer.alloc=function(size,fill,encoding){return alloc(null,size,fill,encoding)},Buffer.allocUnsafe=function(size){return allocUnsafe(null,size)},Buffer.allocUnsafeSlow=function(size){return allocUnsafe(null,size)},Buffer.isBuffer=function(b){return!(null==b||!b._isBuffer)},Buffer.compare=function(a,b){if(!Buffer.isBuffer(a)||!Buffer.isBuffer(b))throw new TypeError("Arguments must be Buffers");if(a===b)return 0;for(var x=a.length,y=b.length,i=0,len=Math.min(x,y);i<len;++i)if(a[i]!==b[i]){x=a[i],y=b[i];break}return x<y?-1:y<x?1:0},Buffer.isEncoding=function(encoding){switch(String(encoding).toLowerCase()){case"hex":case"utf8":case"utf-8":case"ascii":case"latin1":case"binary":case"base64":case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return!0;default:return!1}},Buffer.concat=function(list,length){if(!isArray(list))throw new TypeError('"list" argument must be an Array of Buffers');if(0===list.length)return Buffer.alloc(0);var i;if(void 0===length)for(length=0,i=0;i<list.length;++i)length+=list[i].length;var buffer=Buffer.allocUnsafe(length),pos=0;for(i=0;i<list.length;++i){var buf=list[i];if(!Buffer.isBuffer(buf))throw new TypeError('"list" argument must be an Array of Buffers');buf.copy(buffer,pos),pos+=buf.length}return buffer},Buffer.byteLength=byteLength,Buffer.prototype._isBuffer=!0,Buffer.prototype.swap16=function(){var len=this.length;if(len%2!==0)throw new RangeError("Buffer size must be a multiple of 16-bits");for(var i=0;i<len;i+=2)swap(this,i,i+1);return this},Buffer.prototype.swap32=function(){var len=this.length;if(len%4!==0)throw new RangeError("Buffer size must be a multiple of 32-bits");for(var i=0;i<len;i+=4)swap(this,i,i+3),swap(this,i+1,i+2);return this},Buffer.prototype.swap64=function(){var len=this.length;if(len%8!==0)throw new RangeError("Buffer size must be a multiple of 64-bits");for(var i=0;i<len;i+=8)swap(this,i,i+7),swap(this,i+1,i+6),swap(this,i+2,i+5),swap(this,i+3,i+4);return this},Buffer.prototype.toString=function(){var length=0|this.length;return 0===length?"":0===arguments.length?utf8Slice(this,0,length):slowToString.apply(this,arguments)},Buffer.prototype.equals=function(b){if(!Buffer.isBuffer(b))throw new TypeError("Argument must be a Buffer");return this===b||0===Buffer.compare(this,b)},Buffer.prototype.inspect=function(){var str="",max=exports.INSPECT_MAX_BYTES;return this.length>0&&(str=this.toString("hex",0,max).match(/.{2}/g).join(" "),this.length>max&&(str+=" ... ")),"<Buffer "+str+">"},Buffer.prototype.compare=function(target,start,end,thisStart,thisEnd){if(!Buffer.isBuffer(target))throw new TypeError("Argument must be a Buffer");if(void 0===start&&(start=0),void 0===end&&(end=target?target.length:0),void 0===thisStart&&(thisStart=0),void 0===thisEnd&&(thisEnd=this.length),start<0||end>target.length||thisStart<0||thisEnd>this.length)throw new RangeError("out of range index");if(thisStart>=thisEnd&&start>=end)return 0;if(thisStart>=thisEnd)return-1;if(start>=end)return 1;if(start>>>=0,end>>>=0,thisStart>>>=0,thisEnd>>>=0,this===target)return 0;for(var x=thisEnd-thisStart,y=end-start,len=Math.min(x,y),thisCopy=this.slice(thisStart,thisEnd),targetCopy=target.slice(start,end),i=0;i<len;++i)if(thisCopy[i]!==targetCopy[i]){x=thisCopy[i],y=targetCopy[i];break}return x<y?-1:y<x?1:0},Buffer.prototype.includes=function(val,byteOffset,encoding){return this.indexOf(val,byteOffset,encoding)!==-1},Buffer.prototype.indexOf=function(val,byteOffset,encoding){return bidirectionalIndexOf(this,val,byteOffset,encoding,!0)},Buffer.prototype.lastIndexOf=function(val,byteOffset,encoding){return bidirectionalIndexOf(this,val,byteOffset,encoding,!1)},Buffer.prototype.write=function(string,offset,length,encoding){if(void 0===offset)encoding="utf8",length=this.length,offset=0;else if(void 0===length&&"string"==typeof offset)encoding=offset,length=this.length,offset=0;else{if(!isFinite(offset))throw new Error("Buffer.write(string, encoding, offset[, length]) is no longer supported");offset|=0,isFinite(length)?(length|=0,void 0===encoding&&(encoding="utf8")):(encoding=length,length=void 0)}var remaining=this.length-offset;if((void 0===length||length>remaining)&&(length=remaining),string.length>0&&(length<0||offset<0)||offset>this.length)throw new RangeError("Attempt to write outside buffer bounds");encoding||(encoding="utf8");for(var loweredCase=!1;;)switch(encoding){case"hex":return hexWrite(this,string,offset,length);case"utf8":case"utf-8":return utf8Write(this,string,offset,length);case"ascii":return asciiWrite(this,string,offset,length);case"latin1":case"binary":return latin1Write(this,string,offset,length);case"base64":return base64Write(this,string,offset,length);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return ucs2Write(this,string,offset,length);default:if(loweredCase)throw new TypeError("Unknown encoding: "+encoding);encoding=(""+encoding).toLowerCase(),loweredCase=!0}},Buffer.prototype.toJSON=function(){return{type:"Buffer",data:Array.prototype.slice.call(this._arr||this,0)}};var MAX_ARGUMENTS_LENGTH=4096;Buffer.prototype.slice=function(start,end){var len=this.length;start=~~start,end=void 0===end?len:~~end,start<0?(start+=len,start<0&&(start=0)):start>len&&(start=len),end<0?(end+=len,end<0&&(end=0)):end>len&&(end=len),end<start&&(end=start);var newBuf;if(Buffer.TYPED_ARRAY_SUPPORT)newBuf=this.subarray(start,end),newBuf.__proto__=Buffer.prototype;else{var sliceLen=end-start;newBuf=new Buffer(sliceLen,void 0);for(var i=0;i<sliceLen;++i)newBuf[i]=this[i+start]}return newBuf},Buffer.prototype.readUIntLE=function(offset,byteLength,noAssert){offset|=0,byteLength|=0,noAssert||checkOffset(offset,byteLength,this.length);for(var val=this[offset],mul=1,i=0;++i<byteLength&&(mul*=256);)val+=this[offset+i]*mul;return val},Buffer.prototype.readUIntBE=function(offset,byteLength,noAssert){offset|=0,byteLength|=0,noAssert||checkOffset(offset,byteLength,this.length);for(var val=this[offset+--byteLength],mul=1;byteLength>0&&(mul*=256);)val+=this[offset+--byteLength]*mul;return val},Buffer.prototype.readUInt8=function(offset,noAssert){return noAssert||checkOffset(offset,1,this.length),this[offset]},Buffer.prototype.readUInt16LE=function(offset,noAssert){return noAssert||checkOffset(offset,2,this.length),this[offset]|this[offset+1]<<8},Buffer.prototype.readUInt16BE=function(offset,noAssert){return noAssert||checkOffset(offset,2,this.length),this[offset]<<8|this[offset+1]},Buffer.prototype.readUInt32LE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),(this[offset]|this[offset+1]<<8|this[offset+2]<<16)+16777216*this[offset+3]},Buffer.prototype.readUInt32BE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),16777216*this[offset]+(this[offset+1]<<16|this[offset+2]<<8|this[offset+3])},Buffer.prototype.readIntLE=function(offset,byteLength,noAssert){offset|=0,byteLength|=0,noAssert||checkOffset(offset,byteLength,this.length);for(var val=this[offset],mul=1,i=0;++i<byteLength&&(mul*=256);)val+=this[offset+i]*mul;return mul*=128,val>=mul&&(val-=Math.pow(2,8*byteLength)),val},Buffer.prototype.readIntBE=function(offset,byteLength,noAssert){offset|=0,byteLength|=0,noAssert||checkOffset(offset,byteLength,this.length);for(var i=byteLength,mul=1,val=this[offset+--i];i>0&&(mul*=256);)val+=this[offset+--i]*mul;return mul*=128,val>=mul&&(val-=Math.pow(2,8*byteLength)),val},Buffer.prototype.readInt8=function(offset,noAssert){return noAssert||checkOffset(offset,1,this.length),128&this[offset]?(255-this[offset]+1)*-1:this[offset]},Buffer.prototype.readInt16LE=function(offset,noAssert){noAssert||checkOffset(offset,2,this.length);var val=this[offset]|this[offset+1]<<8;return 32768&val?4294901760|val:val},Buffer.prototype.readInt16BE=function(offset,noAssert){noAssert||checkOffset(offset,2,this.length);var val=this[offset+1]|this[offset]<<8;return 32768&val?4294901760|val:val},Buffer.prototype.readInt32LE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),this[offset]|this[offset+1]<<8|this[offset+2]<<16|this[offset+3]<<24},Buffer.prototype.readInt32BE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),this[offset]<<24|this[offset+1]<<16|this[offset+2]<<8|this[offset+3]},Buffer.prototype.readFloatLE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),ieee754.read(this,offset,!0,23,4)},Buffer.prototype.readFloatBE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),ieee754.read(this,offset,!1,23,4)},Buffer.prototype.readDoubleLE=function(offset,noAssert){return noAssert||checkOffset(offset,8,this.length),ieee754.read(this,offset,!0,52,8)},Buffer.prototype.readDoubleBE=function(offset,noAssert){return noAssert||checkOffset(offset,8,this.length),ieee754.read(this,offset,!1,52,8)},Buffer.prototype.writeUIntLE=function(value,offset,byteLength,noAssert){if(value=+value,offset|=0,byteLength|=0,!noAssert){var maxBytes=Math.pow(2,8*byteLength)-1;checkInt(this,value,offset,byteLength,maxBytes,0)}var mul=1,i=0;for(this[offset]=255&value;++i<byteLength&&(mul*=256);)this[offset+i]=value/mul&255;return offset+byteLength},Buffer.prototype.writeUIntBE=function(value,offset,byteLength,noAssert){if(value=+value,offset|=0,byteLength|=0,!noAssert){var maxBytes=Math.pow(2,8*byteLength)-1;checkInt(this,value,offset,byteLength,maxBytes,0)}var i=byteLength-1,mul=1;for(this[offset+i]=255&value;--i>=0&&(mul*=256);)this[offset+i]=value/mul&255;return offset+byteLength},Buffer.prototype.writeUInt8=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,1,255,0),Buffer.TYPED_ARRAY_SUPPORT||(value=Math.floor(value)),this[offset]=255&value,offset+1},Buffer.prototype.writeUInt16LE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,2,65535,0),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=255&value,this[offset+1]=value>>>8):objectWriteUInt16(this,value,offset,!0),offset+2},Buffer.prototype.writeUInt16BE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,2,65535,0),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=value>>>8,this[offset+1]=255&value):objectWriteUInt16(this,value,offset,!1),offset+2},Buffer.prototype.writeUInt32LE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,4,4294967295,0),Buffer.TYPED_ARRAY_SUPPORT?(this[offset+3]=value>>>24,this[offset+2]=value>>>16,this[offset+1]=value>>>8,this[offset]=255&value):objectWriteUInt32(this,value,offset,!0),offset+4},Buffer.prototype.writeUInt32BE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,4,4294967295,0),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=value>>>24,this[offset+1]=value>>>16,this[offset+2]=value>>>8,this[offset+3]=255&value):objectWriteUInt32(this,value,offset,!1),offset+4},Buffer.prototype.writeIntLE=function(value,offset,byteLength,noAssert){if(value=+value,offset|=0,!noAssert){var limit=Math.pow(2,8*byteLength-1);checkInt(this,value,offset,byteLength,limit-1,-limit)}var i=0,mul=1,sub=0;for(this[offset]=255&value;++i<byteLength&&(mul*=256);)value<0&&0===sub&&0!==this[offset+i-1]&&(sub=1),this[offset+i]=(value/mul>>0)-sub&255;return offset+byteLength},Buffer.prototype.writeIntBE=function(value,offset,byteLength,noAssert){if(value=+value,offset|=0,!noAssert){var limit=Math.pow(2,8*byteLength-1);checkInt(this,value,offset,byteLength,limit-1,-limit)}var i=byteLength-1,mul=1,sub=0;for(this[offset+i]=255&value;--i>=0&&(mul*=256);)value<0&&0===sub&&0!==this[offset+i+1]&&(sub=1),this[offset+i]=(value/mul>>0)-sub&255;return offset+byteLength},Buffer.prototype.writeInt8=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,1,127,-128),Buffer.TYPED_ARRAY_SUPPORT||(value=Math.floor(value)),value<0&&(value=255+value+1),this[offset]=255&value,offset+1},Buffer.prototype.writeInt16LE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,2,32767,-32768),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=255&value,this[offset+1]=value>>>8):objectWriteUInt16(this,value,offset,!0),offset+2},Buffer.prototype.writeInt16BE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,2,32767,-32768),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=value>>>8,this[offset+1]=255&value):objectWriteUInt16(this,value,offset,!1),offset+2},Buffer.prototype.writeInt32LE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,4,2147483647,-2147483648),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=255&value,this[offset+1]=value>>>8,this[offset+2]=value>>>16,this[offset+3]=value>>>24):objectWriteUInt32(this,value,offset,!0),offset+4},Buffer.prototype.writeInt32BE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,4,2147483647,-2147483648),value<0&&(value=4294967295+value+1),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=value>>>24,this[offset+1]=value>>>16,this[offset+2]=value>>>8,this[offset+3]=255&value):objectWriteUInt32(this,value,offset,!1),offset+4},Buffer.prototype.writeFloatLE=function(value,offset,noAssert){return writeFloat(this,value,offset,!0,noAssert)},Buffer.prototype.writeFloatBE=function(value,offset,noAssert){return writeFloat(this,value,offset,!1,noAssert)},Buffer.prototype.writeDoubleLE=function(value,offset,noAssert){return writeDouble(this,value,offset,!0,noAssert)},Buffer.prototype.writeDoubleBE=function(value,offset,noAssert){return writeDouble(this,value,offset,!1,noAssert)},Buffer.prototype.copy=function(target,targetStart,start,end){if(start||(start=0),end||0===end||(end=this.length),targetStart>=target.length&&(targetStart=target.length),targetStart||(targetStart=0),end>0&&end<start&&(end=start),end===start)return 0;if(0===target.length||0===this.length)return 0;if(targetStart<0)throw new RangeError("targetStart out of bounds");if(start<0||start>=this.length)throw new RangeError("sourceStart out of bounds");if(end<0)throw new RangeError("sourceEnd out of bounds");end>this.length&&(end=this.length),target.length-targetStart<end-start&&(end=target.length-targetStart+start);var i,len=end-start;if(this===target&&start<targetStart&&targetStart<end)for(i=len-1;i>=0;--i)target[i+targetStart]=this[i+start];else if(len<1e3||!Buffer.TYPED_ARRAY_SUPPORT)for(i=0;i<len;++i)target[i+targetStart]=this[i+start];else Uint8Array.prototype.set.call(target,this.subarray(start,start+len),targetStart);return len},Buffer.prototype.fill=function(val,start,end,encoding){if("string"==typeof val){if("string"==typeof start?(encoding=start,start=0,end=this.length):"string"==typeof end&&(encoding=end,end=this.length),1===val.length){var code=val.charCodeAt(0);code<256&&(val=code)}if(void 0!==encoding&&"string"!=typeof encoding)throw new TypeError("encoding must be a string");if("string"==typeof encoding&&!Buffer.isEncoding(encoding))throw new TypeError("Unknown encoding: "+encoding)}else"number"==typeof val&&(val&=255);if(start<0||this.length<start||this.length<end)throw new RangeError("Out of range index");if(end<=start)return this;start>>>=0,end=void 0===end?this.length:end>>>0,val||(val=0);var i;if("number"==typeof val)for(i=start;i<end;++i)this[i]=val;else{var bytes=Buffer.isBuffer(val)?val:utf8ToBytes(new Buffer(val,encoding).toString()),len=bytes.length;for(i=0;i<end-start;++i)this[i+start]=bytes[i%len]}return this};var INVALID_BASE64_RE=/[^+\/0-9A-Za-z-_]/g}).call(exports,__webpack_require__(0).Buffer,__webpack_require__(7))},function(module,exports,__webpack_require__){"use strict";(function(Buffer){const bs58=__webpack_require__(4),cs=__webpack_require__(8);exports.toHexString=function(m){if(!Buffer.isBuffer(m))throw new Error("must be passed a buffer");return m.toString("hex")},exports.fromHexString=function(s){return new Buffer(s,"hex")},exports.toB58String=function(m){if(!Buffer.isBuffer(m))throw new Error("must be passed a buffer");return bs58.encode(m)},exports.fromB58String=function(s){let encoded=s;return Buffer.isBuffer(s)&&(encoded=s.toString()),new Buffer(bs58.decode(encoded))},exports.decode=function(buf){exports.validate(buf); | ||
const code=buf[0];return{code:code,name:cs.codes[code],length:buf[1],digest:buf.slice(2)}},exports.encode=function(digest,code,length){if(!digest||!code)throw new Error("multihash encode requires at least two args: digest, code");const hashfn=exports.coerceCode(code);if(!Buffer.isBuffer(digest))throw new Error("digest should be a Buffer");if(null==length&&(length=digest.length),length&&digest.length!==length)throw new Error("digest length should be equal to specified length.");if(length>127)throw new Error("multihash does not yet support digest lengths greater than 127 bytes.");return Buffer.concat([new Buffer([hashfn,length]),digest])},exports.coerceCode=function(name){let code=name;if("string"==typeof name){if(!cs.names[name])throw new Error(`Unrecognized hash function named: ${name}`);code=cs.names[name]}if("number"!=typeof code)throw new Error(`Hash function code should be a number. Got: ${code}`);if(!cs.codes[code]&&!exports.isAppCode(code))throw new Error(`Unrecognized function code: ${code}`);return code},exports.isAppCode=function(code){return code>0&&code<16},exports.isValidCode=function(code){return!!exports.isAppCode(code)||!!cs.codes[code]},exports.validate=function(multihash){if(!Buffer.isBuffer(multihash))throw new Error("multihash must be a Buffer");if(multihash.length<3)throw new Error("multihash too short. must be > 3 bytes.");if(multihash.length>129)throw new Error("multihash too long. must be < 129 bytes.");let code=multihash[0];if(!exports.isValidCode(code))throw new Error(`multihash unknown function code: 0x${code.toString(16)}`);if(multihash.slice(2).length!==multihash[1])throw new Error(`multihash length inconsistent: 0x${multihash.toString("hex")}`)}}).call(exports,__webpack_require__(0).Buffer)},function(module,exports){module.exports=function(ALPHABET){function encode(source){if(0===source.length)return"";for(var digits=[0],i=0;i<source.length;++i){for(var j=0,carry=source[i];j<digits.length;++j)carry+=digits[j]<<8,digits[j]=carry%BASE,carry=carry/BASE|0;for(;carry>0;)digits.push(carry%BASE),carry=carry/BASE|0}for(var k=0;0===source[k]&&k<source.length-1;++k)digits.push(0);for(var ii=0,jj=digits.length-1;ii<=jj;++ii,--jj){var tmp=ALPHABET[digits[ii]];digits[ii]=ALPHABET[digits[jj]],digits[jj]=tmp}return digits.join("")}function decode(string){if(0===string.length)return[];for(var bytes=[0],i=0;i<string.length;i++){var value=ALPHABET_MAP[string[i]];if(void 0===value)throw new Error("Non-base"+BASE+" character");for(var j=0,carry=value;j<bytes.length;++j)carry+=bytes[j]*BASE,bytes[j]=255&carry,carry>>=8;for(;carry>0;)bytes.push(255&carry),carry>>=8}for(var k=0;string[k]===LEADER&&k<string.length-1;++k)bytes.push(0);return bytes.reverse()}for(var ALPHABET_MAP={},BASE=ALPHABET.length,LEADER=ALPHABET.charAt(0),i=0;i<ALPHABET.length;i++)ALPHABET_MAP[ALPHABET.charAt(i)]=i;return{encode:encode,decode:decode}}},function(module,exports){"use strict";function placeHoldersCount(b64){var len=b64.length;if(len%4>0)throw new Error("Invalid string. Length must be a multiple of 4");return"="===b64[len-2]?2:"="===b64[len-1]?1:0}function byteLength(b64){return 3*b64.length/4-placeHoldersCount(b64)}function toByteArray(b64){var i,j,l,tmp,placeHolders,arr,len=b64.length;placeHolders=placeHoldersCount(b64),arr=new Arr(3*len/4-placeHolders),l=placeHolders>0?len-4:len;var L=0;for(i=0,j=0;i<l;i+=4,j+=3)tmp=revLookup[b64.charCodeAt(i)]<<18|revLookup[b64.charCodeAt(i+1)]<<12|revLookup[b64.charCodeAt(i+2)]<<6|revLookup[b64.charCodeAt(i+3)],arr[L++]=tmp>>16&255,arr[L++]=tmp>>8&255,arr[L++]=255&tmp;return 2===placeHolders?(tmp=revLookup[b64.charCodeAt(i)]<<2|revLookup[b64.charCodeAt(i+1)]>>4,arr[L++]=255&tmp):1===placeHolders&&(tmp=revLookup[b64.charCodeAt(i)]<<10|revLookup[b64.charCodeAt(i+1)]<<4|revLookup[b64.charCodeAt(i+2)]>>2,arr[L++]=tmp>>8&255,arr[L++]=255&tmp),arr}function tripletToBase64(num){return lookup[num>>18&63]+lookup[num>>12&63]+lookup[num>>6&63]+lookup[63&num]}function encodeChunk(uint8,start,end){for(var tmp,output=[],i=start;i<end;i+=3)tmp=(uint8[i]<<16)+(uint8[i+1]<<8)+uint8[i+2],output.push(tripletToBase64(tmp));return output.join("")}function fromByteArray(uint8){for(var tmp,len=uint8.length,extraBytes=len%3,output="",parts=[],maxChunkLength=16383,i=0,len2=len-extraBytes;i<len2;i+=maxChunkLength)parts.push(encodeChunk(uint8,i,i+maxChunkLength>len2?len2:i+maxChunkLength));return 1===extraBytes?(tmp=uint8[len-1],output+=lookup[tmp>>2],output+=lookup[tmp<<4&63],output+="=="):2===extraBytes&&(tmp=(uint8[len-2]<<8)+uint8[len-1],output+=lookup[tmp>>10],output+=lookup[tmp>>4&63],output+=lookup[tmp<<2&63],output+="="),parts.push(output),parts.join("")}exports.byteLength=byteLength,exports.toByteArray=toByteArray,exports.fromByteArray=fromByteArray;for(var lookup=[],revLookup=[],Arr="undefined"!=typeof Uint8Array?Uint8Array:Array,code="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",i=0,len=code.length;i<len;++i)lookup[i]=code[i],revLookup[code.charCodeAt(i)]=i;revLookup["-".charCodeAt(0)]=62,revLookup["_".charCodeAt(0)]=63},function(module,exports,__webpack_require__){var basex=__webpack_require__(2),ALPHABET="123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz",base58=basex(ALPHABET);module.exports={encode:base58.encode,decode:base58.decode}},function(module,exports){exports.read=function(buffer,offset,isLE,mLen,nBytes){var e,m,eLen=8*nBytes-mLen-1,eMax=(1<<eLen)-1,eBias=eMax>>1,nBits=-7,i=isLE?nBytes-1:0,d=isLE?-1:1,s=buffer[offset+i];for(i+=d,e=s&(1<<-nBits)-1,s>>=-nBits,nBits+=eLen;nBits>0;e=256*e+buffer[offset+i],i+=d,nBits-=8);for(m=e&(1<<-nBits)-1,e>>=-nBits,nBits+=mLen;nBits>0;m=256*m+buffer[offset+i],i+=d,nBits-=8);if(0===e)e=1-eBias;else{if(e===eMax)return m?NaN:(s?-1:1)*(1/0);m+=Math.pow(2,mLen),e-=eBias}return(s?-1:1)*m*Math.pow(2,e-mLen)},exports.write=function(buffer,value,offset,isLE,mLen,nBytes){var e,m,c,eLen=8*nBytes-mLen-1,eMax=(1<<eLen)-1,eBias=eMax>>1,rt=23===mLen?Math.pow(2,-24)-Math.pow(2,-77):0,i=isLE?0:nBytes-1,d=isLE?1:-1,s=value<0||0===value&&1/value<0?1:0;for(value=Math.abs(value),isNaN(value)||value===1/0?(m=isNaN(value)?1:0,e=eMax):(e=Math.floor(Math.log(value)/Math.LN2),value*(c=Math.pow(2,-e))<1&&(e--,c*=2),value+=e+eBias>=1?rt/c:rt*Math.pow(2,1-eBias),value*c>=2&&(e++,c/=2),e+eBias>=eMax?(m=0,e=eMax):e+eBias>=1?(m=(value*c-1)*Math.pow(2,mLen),e+=eBias):(m=value*Math.pow(2,eBias-1)*Math.pow(2,mLen),e=0));mLen>=8;buffer[offset+i]=255&m,i+=d,m/=256,mLen-=8);for(e=e<<mLen|m,eLen+=mLen;eLen>0;buffer[offset+i]=255&e,i+=d,e/=256,eLen-=8);buffer[offset+i-d]|=128*s}},function(module,exports){var toString={}.toString;module.exports=Array.isArray||function(arr){return"[object Array]"==toString.call(arr)}},function(module,exports){var g;g=function(){return this}();try{g=g||Function("return this")()||(0,eval)("this")}catch(e){"object"==typeof window&&(g=window)}module.exports=g},function(module,exports){"use strict";exports.names={sha1:17,"sha2-256":18,"sha2-512":19,"sha3-224":23,"sha3-256":22,"sha3-384":21,"sha3-512":20,"shake-128":24,"shake-256":25,"keccak-224":26,"keccak-256":27,"keccak-384":28,"keccak-512":29,blake2b:64,blake2s:65},exports.codes={17:"sha1",18:"sha2-256",19:"sha2-512",23:"sha3-224",22:"sha3-256",21:"sha3-384",20:"sha3-512",24:"shake-128",25:"shake-256",26:"keccak-224",27:"keccak-256",28:"keccak-384",29:"keccak-512",64:"blake2b",65:"blake2s"},exports.defaultLengths={17:20,18:32,19:64,23:28,22:32,21:48,20:64,24:32,25:64,26:28,27:32,28:48,29:64,64:64,65:32}},function(module,exports,__webpack_require__){module.exports=__webpack_require__(1)}]); | ||
var Multihashes=function(modules){function __webpack_require__(moduleId){if(installedModules[moduleId])return installedModules[moduleId].exports;var module=installedModules[moduleId]={i:moduleId,l:!1,exports:{}};return modules[moduleId].call(module.exports,module,module.exports,__webpack_require__),module.l=!0,module.exports}var installedModules={};return __webpack_require__.m=modules,__webpack_require__.c=installedModules,__webpack_require__.i=function(value){return value},__webpack_require__.d=function(exports,name,getter){__webpack_require__.o(exports,name)||Object.defineProperty(exports,name,{configurable:!1,enumerable:!0,get:getter})},__webpack_require__.n=function(module){var getter=module&&module.__esModule?function(){return module.default}:function(){return module};return __webpack_require__.d(getter,"a",getter),getter},__webpack_require__.o=function(object,property){return Object.prototype.hasOwnProperty.call(object,property)},__webpack_require__.p="",__webpack_require__(__webpack_require__.s=9)}([function(module,exports,__webpack_require__){"use strict";(function(Buffer){function validate(multihash){if(!Buffer.isBuffer(multihash))throw new Error("multihash must be a Buffer");if(multihash.length<3)throw new Error("multihash too short. must be > 3 bytes.");if(multihash.length>129)throw new Error("multihash too long. must be < 129 bytes.");let code=multihash[0];if(!exports.isValidCode(code))throw new Error(`multihash unknown function code: 0x${code.toString(16)}`);if(multihash.slice(2).length!==multihash[1])throw new Error(`multihash length inconsistent: 0x${multihash.toString("hex")}`)}const bs58=__webpack_require__(3),cs=__webpack_require__(8);exports.toHexString=function(hash){if(!Buffer.isBuffer(hash))throw new Error("must be passed a buffer");return hash.toString("hex")},exports.fromHexString=function(hash){return new Buffer(hash,"hex")},exports.toB58String=function(hash){if(!Buffer.isBuffer(hash))throw new Error("must be passed a buffer");return bs58.encode(hash)},exports.fromB58String=function(hash){let encoded=hash;return Buffer.isBuffer(hash)&&(encoded=hash.toString()),new Buffer(bs58.decode(encoded))},exports.decode=function(buf){exports.validate(buf);const code=buf[0];return{code:code,name:cs.codes[code],length:buf[1],digest:buf.slice(2)}},exports.encode=function(digest,code,length){if(!digest||!code)throw new Error("multihash encode requires at least two args: digest, code");const hashfn=exports.coerceCode(code);if(!Buffer.isBuffer(digest))throw new Error("digest should be a Buffer");if(null==length&&(length=digest.length),length&&digest.length!==length)throw new Error("digest length should be equal to specified length.");if(length>127)throw new Error("multihash does not yet support digest lengths greater than 127 bytes.");return Buffer.concat([new Buffer([hashfn,length]),digest])},exports.coerceCode=function(name){let code=name;if("string"==typeof name){if(!cs.names[name])throw new Error(`Unrecognized hash function named: ${name}`);code=cs.names[name]}if("number"!=typeof code)throw new Error(`Hash function code should be a number. Got: ${code}`);if(!cs.codes[code]&&!exports.isAppCode(code))throw new Error(`Unrecognized function code: ${code}`);return code},exports.isAppCode=function(code){return code>0&&code<16},exports.isValidCode=function(code){return!!exports.isAppCode(code)||!!cs.codes[code]},exports.validate=validate,exports.prefix=function(multihash){return validate(multihash),multihash.slice(0,2)}}).call(exports,__webpack_require__(4).Buffer)},function(module,exports){module.exports=function(ALPHABET){function encode(source){if(0===source.length)return"";for(var digits=[0],i=0;i<source.length;++i){for(var j=0,carry=source[i];j<digits.length;++j)carry+=digits[j]<<8,digits[j]=carry%BASE,carry=carry/BASE|0;for(;carry>0;)digits.push(carry%BASE),carry=carry/BASE|0}for(var string="",k=0;0===source[k]&&k<source.length-1;++k)string+=ALPHABET[0];for(var q=digits.length-1;q>=0;--q)string+=ALPHABET[digits[q]];return string}function decodeUnsafe(string){if(0===string.length)return[];for(var bytes=[0],i=0;i<string.length;i++){var value=ALPHABET_MAP[string[i]];if(void 0===value)return;for(var j=0,carry=value;j<bytes.length;++j)carry+=bytes[j]*BASE,bytes[j]=255&carry,carry>>=8;for(;carry>0;)bytes.push(255&carry),carry>>=8}for(var k=0;string[k]===LEADER&&k<string.length-1;++k)bytes.push(0);return bytes.reverse()}function decode(string){var array=decodeUnsafe(string);if(array)return array;throw new Error("Non-base"+BASE+" character")}for(var ALPHABET_MAP={},BASE=ALPHABET.length,LEADER=ALPHABET.charAt(0),i=0;i<ALPHABET.length;i++)ALPHABET_MAP[ALPHABET.charAt(i)]=i;return{encode:encode,decodeUnsafe:decodeUnsafe,decode:decode}}},function(module,exports){"use strict";function placeHoldersCount(b64){var len=b64.length;if(len%4>0)throw new Error("Invalid string. Length must be a multiple of 4");return"="===b64[len-2]?2:"="===b64[len-1]?1:0}function byteLength(b64){return 3*b64.length/4-placeHoldersCount(b64)}function toByteArray(b64){var i,j,l,tmp,placeHolders,arr,len=b64.length;placeHolders=placeHoldersCount(b64),arr=new Arr(3*len/4-placeHolders),l=placeHolders>0?len-4:len;var L=0;for(i=0,j=0;i<l;i+=4,j+=3)tmp=revLookup[b64.charCodeAt(i)]<<18|revLookup[b64.charCodeAt(i+1)]<<12|revLookup[b64.charCodeAt(i+2)]<<6|revLookup[b64.charCodeAt(i+3)],arr[L++]=tmp>>16&255,arr[L++]=tmp>>8&255,arr[L++]=255&tmp;return 2===placeHolders?(tmp=revLookup[b64.charCodeAt(i)]<<2|revLookup[b64.charCodeAt(i+1)]>>4,arr[L++]=255&tmp):1===placeHolders&&(tmp=revLookup[b64.charCodeAt(i)]<<10|revLookup[b64.charCodeAt(i+1)]<<4|revLookup[b64.charCodeAt(i+2)]>>2,arr[L++]=tmp>>8&255,arr[L++]=255&tmp),arr}function tripletToBase64(num){return lookup[num>>18&63]+lookup[num>>12&63]+lookup[num>>6&63]+lookup[63&num]}function encodeChunk(uint8,start,end){for(var tmp,output=[],i=start;i<end;i+=3)tmp=(uint8[i]<<16)+(uint8[i+1]<<8)+uint8[i+2],output.push(tripletToBase64(tmp));return output.join("")}function fromByteArray(uint8){for(var tmp,len=uint8.length,extraBytes=len%3,output="",parts=[],maxChunkLength=16383,i=0,len2=len-extraBytes;i<len2;i+=maxChunkLength)parts.push(encodeChunk(uint8,i,i+maxChunkLength>len2?len2:i+maxChunkLength));return 1===extraBytes?(tmp=uint8[len-1],output+=lookup[tmp>>2],output+=lookup[tmp<<4&63],output+="=="):2===extraBytes&&(tmp=(uint8[len-2]<<8)+uint8[len-1],output+=lookup[tmp>>10],output+=lookup[tmp>>4&63],output+=lookup[tmp<<2&63],output+="="),parts.push(output),parts.join("")}exports.byteLength=byteLength,exports.toByteArray=toByteArray,exports.fromByteArray=fromByteArray;for(var lookup=[],revLookup=[],Arr="undefined"!=typeof Uint8Array?Uint8Array:Array,code="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",i=0,len=code.length;i<len;++i)lookup[i]=code[i],revLookup[code.charCodeAt(i)]=i;revLookup["-".charCodeAt(0)]=62,revLookup["_".charCodeAt(0)]=63},function(module,exports,__webpack_require__){var basex=__webpack_require__(1),ALPHABET="123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";module.exports=basex(ALPHABET)},function(module,exports,__webpack_require__){"use strict";(function(global){function typedArraySupport(){try{var arr=new Uint8Array(1);return arr.__proto__={__proto__:Uint8Array.prototype,foo:function(){return 42}},42===arr.foo()&&"function"==typeof arr.subarray&&0===arr.subarray(1,1).byteLength}catch(e){return!1}}function kMaxLength(){return Buffer.TYPED_ARRAY_SUPPORT?2147483647:1073741823}function createBuffer(that,length){if(kMaxLength()<length)throw new RangeError("Invalid typed array length");return Buffer.TYPED_ARRAY_SUPPORT?(that=new Uint8Array(length),that.__proto__=Buffer.prototype):(null===that&&(that=new Buffer(length)),that.length=length),that}function Buffer(arg,encodingOrOffset,length){if(!(Buffer.TYPED_ARRAY_SUPPORT||this instanceof Buffer))return new Buffer(arg,encodingOrOffset,length);if("number"==typeof arg){if("string"==typeof encodingOrOffset)throw new Error("If encoding is specified then the first argument must be a string");return allocUnsafe(this,arg)}return from(this,arg,encodingOrOffset,length)}function from(that,value,encodingOrOffset,length){if("number"==typeof value)throw new TypeError('"value" argument must not be a number');return"undefined"!=typeof ArrayBuffer&&value instanceof ArrayBuffer?fromArrayBuffer(that,value,encodingOrOffset,length):"string"==typeof value?fromString(that,value,encodingOrOffset):fromObject(that,value)}function assertSize(size){if("number"!=typeof size)throw new TypeError('"size" argument must be a number');if(size<0)throw new RangeError('"size" argument must not be negative')}function alloc(that,size,fill,encoding){return assertSize(size),size<=0?createBuffer(that,size):void 0!==fill?"string"==typeof encoding?createBuffer(that,size).fill(fill,encoding):createBuffer(that,size).fill(fill):createBuffer(that,size)}function allocUnsafe(that,size){if(assertSize(size),that=createBuffer(that,size<0?0:0|checked(size)),!Buffer.TYPED_ARRAY_SUPPORT)for(var i=0;i<size;++i)that[i]=0;return that}function fromString(that,string,encoding){if("string"==typeof encoding&&""!==encoding||(encoding="utf8"),!Buffer.isEncoding(encoding))throw new TypeError('"encoding" must be a valid string encoding');var length=0|byteLength(string,encoding);that=createBuffer(that,length);var actual=that.write(string,encoding);return actual!==length&&(that=that.slice(0,actual)),that}function fromArrayLike(that,array){var length=array.length<0?0:0|checked(array.length);that=createBuffer(that,length);for(var i=0;i<length;i+=1)that[i]=255&array[i];return that}function fromArrayBuffer(that,array,byteOffset,length){if(array.byteLength,byteOffset<0||array.byteLength<byteOffset)throw new RangeError("'offset' is out of bounds");if(array.byteLength<byteOffset+(length||0))throw new RangeError("'length' is out of bounds");return array=void 0===byteOffset&&void 0===length?new Uint8Array(array):void 0===length?new Uint8Array(array,byteOffset):new Uint8Array(array,byteOffset,length),Buffer.TYPED_ARRAY_SUPPORT?(that=array,that.__proto__=Buffer.prototype):that=fromArrayLike(that,array),that}function fromObject(that,obj){if(Buffer.isBuffer(obj)){var len=0|checked(obj.length);return that=createBuffer(that,len),0===that.length?that:(obj.copy(that,0,0,len),that)}if(obj){if("undefined"!=typeof ArrayBuffer&&obj.buffer instanceof ArrayBuffer||"length"in obj)return"number"!=typeof obj.length||isnan(obj.length)?createBuffer(that,0):fromArrayLike(that,obj);if("Buffer"===obj.type&&isArray(obj.data))return fromArrayLike(that,obj.data)}throw new TypeError("First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.")}function checked(length){if(length>=kMaxLength())throw new RangeError("Attempt to allocate Buffer larger than maximum size: 0x"+kMaxLength().toString(16)+" bytes");return 0|length}function SlowBuffer(length){return+length!=length&&(length=0),Buffer.alloc(+length)}function byteLength(string,encoding){if(Buffer.isBuffer(string))return string.length;if("undefined"!=typeof ArrayBuffer&&"function"==typeof ArrayBuffer.isView&&(ArrayBuffer.isView(string)||string instanceof ArrayBuffer))return string.byteLength;"string"!=typeof string&&(string=""+string);var len=string.length;if(0===len)return 0;for(var loweredCase=!1;;)switch(encoding){case"ascii":case"latin1":case"binary":return len;case"utf8":case"utf-8":case void 0:return utf8ToBytes(string).length;case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return 2*len;case"hex":return len>>>1;case"base64":return base64ToBytes(string).length;default:if(loweredCase)return utf8ToBytes(string).length;encoding=(""+encoding).toLowerCase(),loweredCase=!0}}function slowToString(encoding,start,end){var loweredCase=!1;if((void 0===start||start<0)&&(start=0),start>this.length)return"";if((void 0===end||end>this.length)&&(end=this.length),end<=0)return"";if(end>>>=0,start>>>=0,end<=start)return"";for(encoding||(encoding="utf8");;)switch(encoding){case"hex":return hexSlice(this,start,end);case"utf8":case"utf-8":return utf8Slice(this,start,end);case"ascii":return asciiSlice(this,start,end);case"latin1":case"binary":return latin1Slice(this,start,end);case"base64":return base64Slice(this,start,end);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return utf16leSlice(this,start,end);default:if(loweredCase)throw new TypeError("Unknown encoding: "+encoding);encoding=(encoding+"").toLowerCase(),loweredCase=!0}}function swap(b,n,m){var i=b[n];b[n]=b[m],b[m]=i}function bidirectionalIndexOf(buffer,val,byteOffset,encoding,dir){if(0===buffer.length)return-1;if("string"==typeof byteOffset?(encoding=byteOffset,byteOffset=0):byteOffset>2147483647?byteOffset=2147483647:byteOffset<-2147483648&&(byteOffset=-2147483648),byteOffset=+byteOffset,isNaN(byteOffset)&&(byteOffset=dir?0:buffer.length-1),byteOffset<0&&(byteOffset=buffer.length+byteOffset),byteOffset>=buffer.length){if(dir)return-1;byteOffset=buffer.length-1}else if(byteOffset<0){if(!dir)return-1;byteOffset=0}if("string"==typeof val&&(val=Buffer.from(val,encoding)),Buffer.isBuffer(val))return 0===val.length?-1:arrayIndexOf(buffer,val,byteOffset,encoding,dir);if("number"==typeof val)return val&=255,Buffer.TYPED_ARRAY_SUPPORT&&"function"==typeof Uint8Array.prototype.indexOf?dir?Uint8Array.prototype.indexOf.call(buffer,val,byteOffset):Uint8Array.prototype.lastIndexOf.call(buffer,val,byteOffset):arrayIndexOf(buffer,[val],byteOffset,encoding,dir);throw new TypeError("val must be string, number or Buffer")}function arrayIndexOf(arr,val,byteOffset,encoding,dir){function read(buf,i){return 1===indexSize?buf[i]:buf.readUInt16BE(i*indexSize)}var indexSize=1,arrLength=arr.length,valLength=val.length;if(void 0!==encoding&&(encoding=String(encoding).toLowerCase(),"ucs2"===encoding||"ucs-2"===encoding||"utf16le"===encoding||"utf-16le"===encoding)){if(arr.length<2||val.length<2)return-1;indexSize=2,arrLength/=2,valLength/=2,byteOffset/=2}var i;if(dir){var foundIndex=-1;for(i=byteOffset;i<arrLength;i++)if(read(arr,i)===read(val,foundIndex===-1?0:i-foundIndex)){if(foundIndex===-1&&(foundIndex=i),i-foundIndex+1===valLength)return foundIndex*indexSize}else foundIndex!==-1&&(i-=i-foundIndex),foundIndex=-1}else for(byteOffset+valLength>arrLength&&(byteOffset=arrLength-valLength),i=byteOffset;i>=0;i--){for(var found=!0,j=0;j<valLength;j++)if(read(arr,i+j)!==read(val,j)){found=!1;break}if(found)return i}return-1}function hexWrite(buf,string,offset,length){offset=Number(offset)||0;var remaining=buf.length-offset;length?(length=Number(length),length>remaining&&(length=remaining)):length=remaining;var strLen=string.length;if(strLen%2!==0)throw new TypeError("Invalid hex string");length>strLen/2&&(length=strLen/2);for(var i=0;i<length;++i){var parsed=parseInt(string.substr(2*i,2),16);if(isNaN(parsed))return i;buf[offset+i]=parsed}return i}function utf8Write(buf,string,offset,length){return blitBuffer(utf8ToBytes(string,buf.length-offset),buf,offset,length)}function asciiWrite(buf,string,offset,length){return blitBuffer(asciiToBytes(string),buf,offset,length)}function latin1Write(buf,string,offset,length){return asciiWrite(buf,string,offset,length)}function base64Write(buf,string,offset,length){return blitBuffer(base64ToBytes(string),buf,offset,length)}function ucs2Write(buf,string,offset,length){return blitBuffer(utf16leToBytes(string,buf.length-offset),buf,offset,length)}function base64Slice(buf,start,end){return 0===start&&end===buf.length?base64.fromByteArray(buf):base64.fromByteArray(buf.slice(start,end))}function utf8Slice(buf,start,end){end=Math.min(buf.length,end);for(var res=[],i=start;i<end;){var firstByte=buf[i],codePoint=null,bytesPerSequence=firstByte>239?4:firstByte>223?3:firstByte>191?2:1;if(i+bytesPerSequence<=end){var secondByte,thirdByte,fourthByte,tempCodePoint;switch(bytesPerSequence){case 1:firstByte<128&&(codePoint=firstByte);break;case 2:secondByte=buf[i+1],128===(192&secondByte)&&(tempCodePoint=(31&firstByte)<<6|63&secondByte,tempCodePoint>127&&(codePoint=tempCodePoint));break;case 3:secondByte=buf[i+1],thirdByte=buf[i+2],128===(192&secondByte)&&128===(192&thirdByte)&&(tempCodePoint=(15&firstByte)<<12|(63&secondByte)<<6|63&thirdByte,tempCodePoint>2047&&(tempCodePoint<55296||tempCodePoint>57343)&&(codePoint=tempCodePoint));break;case 4:secondByte=buf[i+1],thirdByte=buf[i+2],fourthByte=buf[i+3],128===(192&secondByte)&&128===(192&thirdByte)&&128===(192&fourthByte)&&(tempCodePoint=(15&firstByte)<<18|(63&secondByte)<<12|(63&thirdByte)<<6|63&fourthByte,tempCodePoint>65535&&tempCodePoint<1114112&&(codePoint=tempCodePoint))}}null===codePoint?(codePoint=65533,bytesPerSequence=1):codePoint>65535&&(codePoint-=65536,res.push(codePoint>>>10&1023|55296),codePoint=56320|1023&codePoint),res.push(codePoint),i+=bytesPerSequence}return decodeCodePointsArray(res)}function decodeCodePointsArray(codePoints){var len=codePoints.length;if(len<=MAX_ARGUMENTS_LENGTH)return String.fromCharCode.apply(String,codePoints);for(var res="",i=0;i<len;)res+=String.fromCharCode.apply(String,codePoints.slice(i,i+=MAX_ARGUMENTS_LENGTH));return res}function asciiSlice(buf,start,end){var ret="";end=Math.min(buf.length,end);for(var i=start;i<end;++i)ret+=String.fromCharCode(127&buf[i]);return ret}function latin1Slice(buf,start,end){var ret="";end=Math.min(buf.length,end);for(var i=start;i<end;++i)ret+=String.fromCharCode(buf[i]);return ret}function hexSlice(buf,start,end){var len=buf.length;(!start||start<0)&&(start=0),(!end||end<0||end>len)&&(end=len);for(var out="",i=start;i<end;++i)out+=toHex(buf[i]);return out}function utf16leSlice(buf,start,end){for(var bytes=buf.slice(start,end),res="",i=0;i<bytes.length;i+=2)res+=String.fromCharCode(bytes[i]+256*bytes[i+1]);return res}function checkOffset(offset,ext,length){if(offset%1!==0||offset<0)throw new RangeError("offset is not uint");if(offset+ext>length)throw new RangeError("Trying to access beyond buffer length")}function checkInt(buf,value,offset,ext,max,min){if(!Buffer.isBuffer(buf))throw new TypeError('"buffer" argument must be a Buffer instance');if(value>max||value<min)throw new RangeError('"value" argument is out of bounds');if(offset+ext>buf.length)throw new RangeError("Index out of range")}function objectWriteUInt16(buf,value,offset,littleEndian){value<0&&(value=65535+value+1);for(var i=0,j=Math.min(buf.length-offset,2);i<j;++i)buf[offset+i]=(value&255<<8*(littleEndian?i:1-i))>>>8*(littleEndian?i:1-i)}function objectWriteUInt32(buf,value,offset,littleEndian){value<0&&(value=4294967295+value+1);for(var i=0,j=Math.min(buf.length-offset,4);i<j;++i)buf[offset+i]=value>>>8*(littleEndian?i:3-i)&255}function checkIEEE754(buf,value,offset,ext,max,min){if(offset+ext>buf.length)throw new RangeError("Index out of range");if(offset<0)throw new RangeError("Index out of range")}function writeFloat(buf,value,offset,littleEndian,noAssert){return noAssert||checkIEEE754(buf,value,offset,4,3.4028234663852886e38,-3.4028234663852886e38),ieee754.write(buf,value,offset,littleEndian,23,4),offset+4}function writeDouble(buf,value,offset,littleEndian,noAssert){return noAssert||checkIEEE754(buf,value,offset,8,1.7976931348623157e308,-1.7976931348623157e308),ieee754.write(buf,value,offset,littleEndian,52,8),offset+8}function base64clean(str){if(str=stringtrim(str).replace(INVALID_BASE64_RE,""),str.length<2)return"";for(;str.length%4!==0;)str+="=";return str}function stringtrim(str){return str.trim?str.trim():str.replace(/^\s+|\s+$/g,"")}function toHex(n){return n<16?"0"+n.toString(16):n.toString(16)}function utf8ToBytes(string,units){units=units||1/0;for(var codePoint,length=string.length,leadSurrogate=null,bytes=[],i=0;i<length;++i){if(codePoint=string.charCodeAt(i),codePoint>55295&&codePoint<57344){if(!leadSurrogate){if(codePoint>56319){(units-=3)>-1&&bytes.push(239,191,189);continue}if(i+1===length){(units-=3)>-1&&bytes.push(239,191,189);continue}leadSurrogate=codePoint;continue}if(codePoint<56320){(units-=3)>-1&&bytes.push(239,191,189),leadSurrogate=codePoint;continue}codePoint=(leadSurrogate-55296<<10|codePoint-56320)+65536}else leadSurrogate&&(units-=3)>-1&&bytes.push(239,191,189);if(leadSurrogate=null,codePoint<128){if((units-=1)<0)break;bytes.push(codePoint)}else if(codePoint<2048){if((units-=2)<0)break;bytes.push(codePoint>>6|192,63&codePoint|128)}else if(codePoint<65536){if((units-=3)<0)break;bytes.push(codePoint>>12|224,codePoint>>6&63|128,63&codePoint|128)}else{if(!(codePoint<1114112))throw new Error("Invalid code point");if((units-=4)<0)break;bytes.push(codePoint>>18|240,codePoint>>12&63|128,codePoint>>6&63|128,63&codePoint|128)}}return bytes}function asciiToBytes(str){for(var byteArray=[],i=0;i<str.length;++i)byteArray.push(255&str.charCodeAt(i));return byteArray}function utf16leToBytes(str,units){for(var c,hi,lo,byteArray=[],i=0;i<str.length&&!((units-=2)<0);++i)c=str.charCodeAt(i),hi=c>>8,lo=c%256,byteArray.push(lo),byteArray.push(hi);return byteArray}function base64ToBytes(str){return base64.toByteArray(base64clean(str))}function blitBuffer(src,dst,offset,length){for(var i=0;i<length&&!(i+offset>=dst.length||i>=src.length);++i)dst[i+offset]=src[i];return i}function isnan(val){return val!==val}var base64=__webpack_require__(2),ieee754=__webpack_require__(5),isArray=__webpack_require__(6);exports.Buffer=Buffer,exports.SlowBuffer=SlowBuffer,exports.INSPECT_MAX_BYTES=50,Buffer.TYPED_ARRAY_SUPPORT=void 0!==global.TYPED_ARRAY_SUPPORT?global.TYPED_ARRAY_SUPPORT:typedArraySupport(),exports.kMaxLength=kMaxLength(),Buffer.poolSize=8192,Buffer._augment=function(arr){return arr.__proto__=Buffer.prototype,arr},Buffer.from=function(value,encodingOrOffset,length){return from(null,value,encodingOrOffset,length)},Buffer.TYPED_ARRAY_SUPPORT&&(Buffer.prototype.__proto__=Uint8Array.prototype,Buffer.__proto__=Uint8Array,"undefined"!=typeof Symbol&&Symbol.species&&Buffer[Symbol.species]===Buffer&&Object.defineProperty(Buffer,Symbol.species,{value:null,configurable:!0})),Buffer.alloc=function(size,fill,encoding){return alloc(null,size,fill,encoding)},Buffer.allocUnsafe=function(size){return allocUnsafe(null,size)},Buffer.allocUnsafeSlow=function(size){return allocUnsafe(null,size)},Buffer.isBuffer=function(b){return!(null==b||!b._isBuffer)},Buffer.compare=function(a,b){if(!Buffer.isBuffer(a)||!Buffer.isBuffer(b))throw new TypeError("Arguments must be Buffers");if(a===b)return 0;for(var x=a.length,y=b.length,i=0,len=Math.min(x,y);i<len;++i)if(a[i]!==b[i]){x=a[i],y=b[i];break}return x<y?-1:y<x?1:0},Buffer.isEncoding=function(encoding){switch(String(encoding).toLowerCase()){case"hex":case"utf8":case"utf-8":case"ascii":case"latin1":case"binary":case"base64":case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return!0;default:return!1}},Buffer.concat=function(list,length){if(!isArray(list))throw new TypeError('"list" argument must be an Array of Buffers');if(0===list.length)return Buffer.alloc(0);var i;if(void 0===length)for(length=0,i=0;i<list.length;++i)length+=list[i].length;var buffer=Buffer.allocUnsafe(length),pos=0;for(i=0;i<list.length;++i){var buf=list[i];if(!Buffer.isBuffer(buf))throw new TypeError('"list" argument must be an Array of Buffers');buf.copy(buffer,pos),pos+=buf.length}return buffer},Buffer.byteLength=byteLength,Buffer.prototype._isBuffer=!0,Buffer.prototype.swap16=function(){var len=this.length;if(len%2!==0)throw new RangeError("Buffer size must be a multiple of 16-bits");for(var i=0;i<len;i+=2)swap(this,i,i+1);return this},Buffer.prototype.swap32=function(){var len=this.length;if(len%4!==0)throw new RangeError("Buffer size must be a multiple of 32-bits");for(var i=0;i<len;i+=4)swap(this,i,i+3),swap(this,i+1,i+2);return this},Buffer.prototype.swap64=function(){var len=this.length;if(len%8!==0)throw new RangeError("Buffer size must be a multiple of 64-bits");for(var i=0;i<len;i+=8)swap(this,i,i+7),swap(this,i+1,i+6),swap(this,i+2,i+5),swap(this,i+3,i+4);return this},Buffer.prototype.toString=function(){var length=0|this.length;return 0===length?"":0===arguments.length?utf8Slice(this,0,length):slowToString.apply(this,arguments)},Buffer.prototype.equals=function(b){if(!Buffer.isBuffer(b))throw new TypeError("Argument must be a Buffer");return this===b||0===Buffer.compare(this,b)},Buffer.prototype.inspect=function(){var str="",max=exports.INSPECT_MAX_BYTES;return this.length>0&&(str=this.toString("hex",0,max).match(/.{2}/g).join(" "),this.length>max&&(str+=" ... ")),"<Buffer "+str+">"},Buffer.prototype.compare=function(target,start,end,thisStart,thisEnd){if(!Buffer.isBuffer(target))throw new TypeError("Argument must be a Buffer");if(void 0===start&&(start=0),void 0===end&&(end=target?target.length:0),void 0===thisStart&&(thisStart=0),void 0===thisEnd&&(thisEnd=this.length),start<0||end>target.length||thisStart<0||thisEnd>this.length)throw new RangeError("out of range index");if(thisStart>=thisEnd&&start>=end)return 0;if(thisStart>=thisEnd)return-1;if(start>=end)return 1;if(start>>>=0,end>>>=0,thisStart>>>=0,thisEnd>>>=0,this===target)return 0;for(var x=thisEnd-thisStart,y=end-start,len=Math.min(x,y),thisCopy=this.slice(thisStart,thisEnd),targetCopy=target.slice(start,end),i=0;i<len;++i)if(thisCopy[i]!==targetCopy[i]){x=thisCopy[i],y=targetCopy[i];break}return x<y?-1:y<x?1:0},Buffer.prototype.includes=function(val,byteOffset,encoding){return this.indexOf(val,byteOffset,encoding)!==-1},Buffer.prototype.indexOf=function(val,byteOffset,encoding){return bidirectionalIndexOf(this,val,byteOffset,encoding,!0)},Buffer.prototype.lastIndexOf=function(val,byteOffset,encoding){return bidirectionalIndexOf(this,val,byteOffset,encoding,!1)},Buffer.prototype.write=function(string,offset,length,encoding){if(void 0===offset)encoding="utf8",length=this.length,offset=0;else if(void 0===length&&"string"==typeof offset)encoding=offset,length=this.length,offset=0;else{if(!isFinite(offset))throw new Error("Buffer.write(string, encoding, offset[, length]) is no longer supported");offset|=0,isFinite(length)?(length|=0,void 0===encoding&&(encoding="utf8")):(encoding=length,length=void 0)}var remaining=this.length-offset;if((void 0===length||length>remaining)&&(length=remaining),string.length>0&&(length<0||offset<0)||offset>this.length)throw new RangeError("Attempt to write outside buffer bounds");encoding||(encoding="utf8");for(var loweredCase=!1;;)switch(encoding){case"hex":return hexWrite(this,string,offset,length);case"utf8":case"utf-8":return utf8Write(this,string,offset,length);case"ascii":return asciiWrite(this,string,offset,length);case"latin1":case"binary":return latin1Write(this,string,offset,length);case"base64":return base64Write(this,string,offset,length);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return ucs2Write(this,string,offset,length);default:if(loweredCase)throw new TypeError("Unknown encoding: "+encoding);encoding=(""+encoding).toLowerCase(),loweredCase=!0}},Buffer.prototype.toJSON=function(){return{type:"Buffer",data:Array.prototype.slice.call(this._arr||this,0)}};var MAX_ARGUMENTS_LENGTH=4096;Buffer.prototype.slice=function(start,end){var len=this.length;start=~~start,end=void 0===end?len:~~end,start<0?(start+=len,start<0&&(start=0)):start>len&&(start=len),end<0?(end+=len,end<0&&(end=0)):end>len&&(end=len),end<start&&(end=start);var newBuf;if(Buffer.TYPED_ARRAY_SUPPORT)newBuf=this.subarray(start,end),newBuf.__proto__=Buffer.prototype;else{var sliceLen=end-start;newBuf=new Buffer(sliceLen,void 0);for(var i=0;i<sliceLen;++i)newBuf[i]=this[i+start]}return newBuf},Buffer.prototype.readUIntLE=function(offset,byteLength,noAssert){offset|=0,byteLength|=0,noAssert||checkOffset(offset,byteLength,this.length);for(var val=this[offset],mul=1,i=0;++i<byteLength&&(mul*=256);)val+=this[offset+i]*mul;return val},Buffer.prototype.readUIntBE=function(offset,byteLength,noAssert){offset|=0,byteLength|=0,noAssert||checkOffset(offset,byteLength,this.length);for(var val=this[offset+--byteLength],mul=1;byteLength>0&&(mul*=256);)val+=this[offset+--byteLength]*mul;return val},Buffer.prototype.readUInt8=function(offset,noAssert){return noAssert||checkOffset(offset,1,this.length),this[offset]},Buffer.prototype.readUInt16LE=function(offset,noAssert){return noAssert||checkOffset(offset,2,this.length),this[offset]|this[offset+1]<<8},Buffer.prototype.readUInt16BE=function(offset,noAssert){return noAssert||checkOffset(offset,2,this.length),this[offset]<<8|this[offset+1]},Buffer.prototype.readUInt32LE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),(this[offset]|this[offset+1]<<8|this[offset+2]<<16)+16777216*this[offset+3]},Buffer.prototype.readUInt32BE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),16777216*this[offset]+(this[offset+1]<<16|this[offset+2]<<8|this[offset+3])},Buffer.prototype.readIntLE=function(offset,byteLength,noAssert){offset|=0,byteLength|=0,noAssert||checkOffset(offset,byteLength,this.length);for(var val=this[offset],mul=1,i=0;++i<byteLength&&(mul*=256);)val+=this[offset+i]*mul;return mul*=128,val>=mul&&(val-=Math.pow(2,8*byteLength)),val},Buffer.prototype.readIntBE=function(offset,byteLength,noAssert){offset|=0,byteLength|=0,noAssert||checkOffset(offset,byteLength,this.length);for(var i=byteLength,mul=1,val=this[offset+--i];i>0&&(mul*=256);)val+=this[offset+--i]*mul;return mul*=128,val>=mul&&(val-=Math.pow(2,8*byteLength)),val},Buffer.prototype.readInt8=function(offset,noAssert){return noAssert||checkOffset(offset,1,this.length),128&this[offset]?(255-this[offset]+1)*-1:this[offset]},Buffer.prototype.readInt16LE=function(offset,noAssert){noAssert||checkOffset(offset,2,this.length);var val=this[offset]|this[offset+1]<<8;return 32768&val?4294901760|val:val},Buffer.prototype.readInt16BE=function(offset,noAssert){noAssert||checkOffset(offset,2,this.length);var val=this[offset+1]|this[offset]<<8;return 32768&val?4294901760|val:val},Buffer.prototype.readInt32LE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),this[offset]|this[offset+1]<<8|this[offset+2]<<16|this[offset+3]<<24},Buffer.prototype.readInt32BE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),this[offset]<<24|this[offset+1]<<16|this[offset+2]<<8|this[offset+3]},Buffer.prototype.readFloatLE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),ieee754.read(this,offset,!0,23,4)},Buffer.prototype.readFloatBE=function(offset,noAssert){return noAssert||checkOffset(offset,4,this.length),ieee754.read(this,offset,!1,23,4)},Buffer.prototype.readDoubleLE=function(offset,noAssert){return noAssert||checkOffset(offset,8,this.length),ieee754.read(this,offset,!0,52,8)},Buffer.prototype.readDoubleBE=function(offset,noAssert){return noAssert||checkOffset(offset,8,this.length),ieee754.read(this,offset,!1,52,8)},Buffer.prototype.writeUIntLE=function(value,offset,byteLength,noAssert){if(value=+value,offset|=0,byteLength|=0,!noAssert){var maxBytes=Math.pow(2,8*byteLength)-1;checkInt(this,value,offset,byteLength,maxBytes,0)}var mul=1,i=0;for(this[offset]=255&value;++i<byteLength&&(mul*=256);)this[offset+i]=value/mul&255;return offset+byteLength},Buffer.prototype.writeUIntBE=function(value,offset,byteLength,noAssert){if(value=+value,offset|=0,byteLength|=0,!noAssert){var maxBytes=Math.pow(2,8*byteLength)-1;checkInt(this,value,offset,byteLength,maxBytes,0)}var i=byteLength-1,mul=1;for(this[offset+i]=255&value;--i>=0&&(mul*=256);)this[offset+i]=value/mul&255;return offset+byteLength},Buffer.prototype.writeUInt8=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,1,255,0),Buffer.TYPED_ARRAY_SUPPORT||(value=Math.floor(value)),this[offset]=255&value,offset+1},Buffer.prototype.writeUInt16LE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,2,65535,0),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=255&value,this[offset+1]=value>>>8):objectWriteUInt16(this,value,offset,!0),offset+2},Buffer.prototype.writeUInt16BE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,2,65535,0),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=value>>>8, | ||
this[offset+1]=255&value):objectWriteUInt16(this,value,offset,!1),offset+2},Buffer.prototype.writeUInt32LE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,4,4294967295,0),Buffer.TYPED_ARRAY_SUPPORT?(this[offset+3]=value>>>24,this[offset+2]=value>>>16,this[offset+1]=value>>>8,this[offset]=255&value):objectWriteUInt32(this,value,offset,!0),offset+4},Buffer.prototype.writeUInt32BE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,4,4294967295,0),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=value>>>24,this[offset+1]=value>>>16,this[offset+2]=value>>>8,this[offset+3]=255&value):objectWriteUInt32(this,value,offset,!1),offset+4},Buffer.prototype.writeIntLE=function(value,offset,byteLength,noAssert){if(value=+value,offset|=0,!noAssert){var limit=Math.pow(2,8*byteLength-1);checkInt(this,value,offset,byteLength,limit-1,-limit)}var i=0,mul=1,sub=0;for(this[offset]=255&value;++i<byteLength&&(mul*=256);)value<0&&0===sub&&0!==this[offset+i-1]&&(sub=1),this[offset+i]=(value/mul>>0)-sub&255;return offset+byteLength},Buffer.prototype.writeIntBE=function(value,offset,byteLength,noAssert){if(value=+value,offset|=0,!noAssert){var limit=Math.pow(2,8*byteLength-1);checkInt(this,value,offset,byteLength,limit-1,-limit)}var i=byteLength-1,mul=1,sub=0;for(this[offset+i]=255&value;--i>=0&&(mul*=256);)value<0&&0===sub&&0!==this[offset+i+1]&&(sub=1),this[offset+i]=(value/mul>>0)-sub&255;return offset+byteLength},Buffer.prototype.writeInt8=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,1,127,-128),Buffer.TYPED_ARRAY_SUPPORT||(value=Math.floor(value)),value<0&&(value=255+value+1),this[offset]=255&value,offset+1},Buffer.prototype.writeInt16LE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,2,32767,-32768),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=255&value,this[offset+1]=value>>>8):objectWriteUInt16(this,value,offset,!0),offset+2},Buffer.prototype.writeInt16BE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,2,32767,-32768),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=value>>>8,this[offset+1]=255&value):objectWriteUInt16(this,value,offset,!1),offset+2},Buffer.prototype.writeInt32LE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,4,2147483647,-2147483648),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=255&value,this[offset+1]=value>>>8,this[offset+2]=value>>>16,this[offset+3]=value>>>24):objectWriteUInt32(this,value,offset,!0),offset+4},Buffer.prototype.writeInt32BE=function(value,offset,noAssert){return value=+value,offset|=0,noAssert||checkInt(this,value,offset,4,2147483647,-2147483648),value<0&&(value=4294967295+value+1),Buffer.TYPED_ARRAY_SUPPORT?(this[offset]=value>>>24,this[offset+1]=value>>>16,this[offset+2]=value>>>8,this[offset+3]=255&value):objectWriteUInt32(this,value,offset,!1),offset+4},Buffer.prototype.writeFloatLE=function(value,offset,noAssert){return writeFloat(this,value,offset,!0,noAssert)},Buffer.prototype.writeFloatBE=function(value,offset,noAssert){return writeFloat(this,value,offset,!1,noAssert)},Buffer.prototype.writeDoubleLE=function(value,offset,noAssert){return writeDouble(this,value,offset,!0,noAssert)},Buffer.prototype.writeDoubleBE=function(value,offset,noAssert){return writeDouble(this,value,offset,!1,noAssert)},Buffer.prototype.copy=function(target,targetStart,start,end){if(start||(start=0),end||0===end||(end=this.length),targetStart>=target.length&&(targetStart=target.length),targetStart||(targetStart=0),end>0&&end<start&&(end=start),end===start)return 0;if(0===target.length||0===this.length)return 0;if(targetStart<0)throw new RangeError("targetStart out of bounds");if(start<0||start>=this.length)throw new RangeError("sourceStart out of bounds");if(end<0)throw new RangeError("sourceEnd out of bounds");end>this.length&&(end=this.length),target.length-targetStart<end-start&&(end=target.length-targetStart+start);var i,len=end-start;if(this===target&&start<targetStart&&targetStart<end)for(i=len-1;i>=0;--i)target[i+targetStart]=this[i+start];else if(len<1e3||!Buffer.TYPED_ARRAY_SUPPORT)for(i=0;i<len;++i)target[i+targetStart]=this[i+start];else Uint8Array.prototype.set.call(target,this.subarray(start,start+len),targetStart);return len},Buffer.prototype.fill=function(val,start,end,encoding){if("string"==typeof val){if("string"==typeof start?(encoding=start,start=0,end=this.length):"string"==typeof end&&(encoding=end,end=this.length),1===val.length){var code=val.charCodeAt(0);code<256&&(val=code)}if(void 0!==encoding&&"string"!=typeof encoding)throw new TypeError("encoding must be a string");if("string"==typeof encoding&&!Buffer.isEncoding(encoding))throw new TypeError("Unknown encoding: "+encoding)}else"number"==typeof val&&(val&=255);if(start<0||this.length<start||this.length<end)throw new RangeError("Out of range index");if(end<=start)return this;start>>>=0,end=void 0===end?this.length:end>>>0,val||(val=0);var i;if("number"==typeof val)for(i=start;i<end;++i)this[i]=val;else{var bytes=Buffer.isBuffer(val)?val:utf8ToBytes(new Buffer(val,encoding).toString()),len=bytes.length;for(i=0;i<end-start;++i)this[i+start]=bytes[i%len]}return this};var INVALID_BASE64_RE=/[^+\/0-9A-Za-z-_]/g}).call(exports,__webpack_require__(7))},function(module,exports){exports.read=function(buffer,offset,isLE,mLen,nBytes){var e,m,eLen=8*nBytes-mLen-1,eMax=(1<<eLen)-1,eBias=eMax>>1,nBits=-7,i=isLE?nBytes-1:0,d=isLE?-1:1,s=buffer[offset+i];for(i+=d,e=s&(1<<-nBits)-1,s>>=-nBits,nBits+=eLen;nBits>0;e=256*e+buffer[offset+i],i+=d,nBits-=8);for(m=e&(1<<-nBits)-1,e>>=-nBits,nBits+=mLen;nBits>0;m=256*m+buffer[offset+i],i+=d,nBits-=8);if(0===e)e=1-eBias;else{if(e===eMax)return m?NaN:(s?-1:1)*(1/0);m+=Math.pow(2,mLen),e-=eBias}return(s?-1:1)*m*Math.pow(2,e-mLen)},exports.write=function(buffer,value,offset,isLE,mLen,nBytes){var e,m,c,eLen=8*nBytes-mLen-1,eMax=(1<<eLen)-1,eBias=eMax>>1,rt=23===mLen?Math.pow(2,-24)-Math.pow(2,-77):0,i=isLE?0:nBytes-1,d=isLE?1:-1,s=value<0||0===value&&1/value<0?1:0;for(value=Math.abs(value),isNaN(value)||value===1/0?(m=isNaN(value)?1:0,e=eMax):(e=Math.floor(Math.log(value)/Math.LN2),value*(c=Math.pow(2,-e))<1&&(e--,c*=2),value+=e+eBias>=1?rt/c:rt*Math.pow(2,1-eBias),value*c>=2&&(e++,c/=2),e+eBias>=eMax?(m=0,e=eMax):e+eBias>=1?(m=(value*c-1)*Math.pow(2,mLen),e+=eBias):(m=value*Math.pow(2,eBias-1)*Math.pow(2,mLen),e=0));mLen>=8;buffer[offset+i]=255&m,i+=d,m/=256,mLen-=8);for(e=e<<mLen|m,eLen+=mLen;eLen>0;buffer[offset+i]=255&e,i+=d,e/=256,eLen-=8);buffer[offset+i-d]|=128*s}},function(module,exports){var toString={}.toString;module.exports=Array.isArray||function(arr){return"[object Array]"==toString.call(arr)}},function(module,exports){var g;g=function(){return this}();try{g=g||Function("return this")()||(0,eval)("this")}catch(e){"object"==typeof window&&(g=window)}module.exports=g},function(module,exports){"use strict";exports.names={sha1:17,"sha2-256":18,"sha2-512":19,"sha3-224":23,"sha3-256":22,"sha3-384":21,"sha3-512":20,"shake-128":24,"shake-256":25,"keccak-224":26,"keccak-256":27,"keccak-384":28,"keccak-512":29,blake2b:64,blake2s:65},exports.codes={17:"sha1",18:"sha2-256",19:"sha2-512",23:"sha3-224",22:"sha3-256",21:"sha3-384",20:"sha3-512",24:"shake-128",25:"shake-256",26:"keccak-224",27:"keccak-256",28:"keccak-384",29:"keccak-512",64:"blake2b",65:"blake2s"},exports.defaultLengths={17:20,18:32,19:64,23:28,22:32,21:48,20:64,24:32,25:64,26:28,27:32,28:48,29:64,64:64,65:32}},function(module,exports,__webpack_require__){module.exports=__webpack_require__(0)}]); |
{ | ||
"name": "multihashes", | ||
"version": "0.3.0", | ||
"version": "0.3.1", | ||
"description": "multihash implementation", | ||
@@ -12,5 +12,6 @@ "main": "src/index.js", | ||
"test": "aegir-test", | ||
"release": "aegir-release", | ||
"release-minor": "aegir-release --type minor", | ||
"release-major": "aegir-release --type major", | ||
"docs": "aegir-docs", | ||
"release": "aegir-release --docs", | ||
"release-minor": "aegir-release --type minor --docs", | ||
"release-major": "aegir-release --type major --docs", | ||
"coverage": "aegir-coverage", | ||
@@ -41,9 +42,9 @@ "coverage-publish": "aegir-coverage publish" | ||
"dependencies": { | ||
"bs58": "^3.0.0" | ||
"bs58": "^3.1.0" | ||
}, | ||
"devDependencies": { | ||
"aegir": "^9.1.2", | ||
"aegir": "^9.3.0", | ||
"buffer-equal": "1.0.0", | ||
"chai": "^3.5.0", | ||
"pre-commit": "^1.1.2" | ||
"pre-commit": "^1.2.2" | ||
}, | ||
@@ -53,6 +54,6 @@ "contributors": [ | ||
"Fil <fil@rezo.net>", | ||
"Friedel Ziegelmayer <dignifiedquire@gmail.com>", | ||
"Juan Benet <juan@benet.ai>", | ||
"Richard Littauer <richard.littauer@gmail.com>", | ||
"William Cotton <williamcotton@gmail.com>", | ||
"dignifiedquire <dignifiedquire@gmail.com>", | ||
"kumavis <aaron@kumavis.me>", | ||
@@ -59,0 +60,0 @@ "nginnever <ginneversource@gmail.com>", |
100
README.md
@@ -26,12 +26,2 @@ js-multihash | ||
- [API](#api) | ||
- [`decode(buf)`](#decodebuf) | ||
- [`encode(digest, hashfn[, length])`](#encodedigest-hashfn-length) | ||
- [`toHexString(multihash)`](#tohexstringmultihash) | ||
- [`fromHexString(string)`](#fromhexstringstring) | ||
- [`toB58String(multihash)`](#tob58stringmultihash) | ||
- [`fromB58String(string)`](#fromb58stringstring) | ||
- [`coerceCode(name)`](#coercecodename) | ||
- [`isAppCode(code)`](#isappcodecode) | ||
- [`isValidCode(code)`](#isvalidcodecode) | ||
- [`validate(multihash)`](#validatemultihash) | ||
- [Maintainers](#maintainers) | ||
@@ -91,93 +81,3 @@ - [Contribute](#contribute) | ||
### `decode(buf)` | ||
- `buf: Buffer` | ||
Decode a hash from the given multihash. | ||
Returns an object of the form, | ||
```js | ||
{ | ||
code: Number, | ||
name: String, | ||
length: Number, | ||
digest: Buffer | ||
} | ||
``` | ||
### `encode(digest, hashfn[, length])` | ||
- `digest: Buffer` | ||
- `hashfn: String|Number` | ||
- `length: Number` (optional) | ||
Encode a hash digest along with the specified function code. | ||
> Note: the length is derived from the length of the digest itself. | ||
Returns a buffer. | ||
### `toHexString(multihash)` | ||
- `multihash: Buffer` | ||
Convert the given multihash to a hex encoded string. | ||
Returns a string. | ||
### `fromHexString(string)` | ||
- `string: String` | ||
Convert the given hex encoded string to a multihash (a `Buffer`). | ||
Returns a buffer. | ||
### `toB58String(multihash)` | ||
- `multihash: Buffer` | ||
Convert the given multihash to a base58 encoded string. | ||
Returns a string. | ||
### `fromB58String(string)` | ||
- `string: String` | ||
Convert the given base58 encoded string to a multihash (a `Buffer`). | ||
Returns a buffer. | ||
### `coerceCode(name)` | ||
- `name: String|Number` | ||
Converts a given hash function into the matching code. If passed a number it will return the number if it's a valid code. | ||
Returns a number. | ||
### `isAppCode(code)` | ||
- `code: Number` | ||
Checks wether a code is part of the app range. | ||
Returns a boolean. | ||
### `isValidCode(code)` | ||
- `code: Number` | ||
Checks whether a multihash code is valid. | ||
Returns a boolean. | ||
### `validate(multihash)` | ||
- `multihash: Buffer` | ||
Check if the given buffer is a valid multihash. Throws an error if it is not valid. | ||
## Maintainers | ||
@@ -184,0 +84,0 @@ |
116
src/index.js
@@ -0,1 +1,6 @@ | ||
/** | ||
* Multihash implementation in JavaScript. | ||
* | ||
* @module multihash | ||
*/ | ||
'use strict' | ||
@@ -7,26 +12,50 @@ | ||
exports.toHexString = function toHexString (m) { | ||
if (!Buffer.isBuffer(m)) { | ||
/** | ||
* Convert the given multihash to a hex encoded string. | ||
* | ||
* @param {Buffer} hash | ||
* @returns {string} | ||
*/ | ||
exports.toHexString = function toHexString (hash) { | ||
if (!Buffer.isBuffer(hash)) { | ||
throw new Error('must be passed a buffer') | ||
} | ||
return m.toString('hex') | ||
return hash.toString('hex') | ||
} | ||
exports.fromHexString = function fromHexString (s) { | ||
return new Buffer(s, 'hex') | ||
/** | ||
* Convert the given hex encoded string to a multihash. | ||
* | ||
* @param {string} hash | ||
* @returns {Buffer} | ||
*/ | ||
exports.fromHexString = function fromHexString (hash) { | ||
return new Buffer(hash, 'hex') | ||
} | ||
exports.toB58String = function toB58String (m) { | ||
if (!Buffer.isBuffer(m)) { | ||
/** | ||
* Convert the given multihash to a base58 encoded string. | ||
* | ||
* @param {Buffer} hash | ||
* @returns {string} | ||
*/ | ||
exports.toB58String = function toB58String (hash) { | ||
if (!Buffer.isBuffer(hash)) { | ||
throw new Error('must be passed a buffer') | ||
} | ||
return bs58.encode(m) | ||
return bs58.encode(hash) | ||
} | ||
exports.fromB58String = function fromB58String (s) { | ||
let encoded = s | ||
if (Buffer.isBuffer(s)) { | ||
encoded = s.toString() | ||
/** | ||
* Convert the given base58 encoded string to a multihash. | ||
* | ||
* @param {string|Buffer} hash | ||
* @returns {Buffer} | ||
*/ | ||
exports.fromB58String = function fromB58String (hash) { | ||
let encoded = hash | ||
if (Buffer.isBuffer(hash)) { | ||
encoded = hash.toString() | ||
} | ||
@@ -37,3 +66,8 @@ | ||
// Decode a hash from the given Multihash. | ||
/** | ||
* Decode a hash from the given multihash. | ||
* | ||
* @param {Buffer} buf | ||
* @returns {{code: number, name: string, length: number, digest: Buffer}} result | ||
*/ | ||
exports.decode = function decode (buf) { | ||
@@ -52,4 +86,12 @@ exports.validate(buf) | ||
// Encode a hash digest along with the specified function code. | ||
// Note: the length is derived from the length of the digest itself. | ||
/** | ||
* Encode a hash digest along with the specified function code. | ||
* | ||
* > **Note:** the length is derived from the length of the digest itself. | ||
* | ||
* @param {Buffer} digest | ||
* @param {string|number} code | ||
* @param {number} [length] | ||
* @returns {Buffer} | ||
*/ | ||
exports.encode = function encode (digest, code, length) { | ||
@@ -82,3 +124,8 @@ if (!digest || !code) { | ||
// Converts a hashfn name into the matching code | ||
/** | ||
* Converts a hash function name into the matching code. | ||
* If passed a number it will return the number if it's a valid code. | ||
* @param {string|number} name | ||
* @returns {number} | ||
*/ | ||
exports.coerceCode = function coerceCode (name) { | ||
@@ -105,3 +152,8 @@ let code = name | ||
// Checks wether a code is part of the app range | ||
/** | ||
* Checks wether a code is part of the app range | ||
* | ||
* @param {number} code | ||
* @returns {boolean} | ||
*/ | ||
exports.isAppCode = function appCode (code) { | ||
@@ -111,3 +163,8 @@ return code > 0 && code < 0x10 | ||
// Checks whether a multihash code is valid. | ||
/** | ||
* Checks whether a multihash code is valid. | ||
* | ||
* @param {number} code | ||
* @returns {boolean} | ||
*/ | ||
exports.isValidCode = function validCode (code) { | ||
@@ -125,3 +182,10 @@ if (exports.isAppCode(code)) { | ||
exports.validate = function validate (multihash) { | ||
/** | ||
* Check if the given buffer is a valid multihash. Throws an error if it is not valid. | ||
* | ||
* @param {Buffer} multihash | ||
* @returns {undefined} | ||
* @throws {Error} | ||
*/ | ||
function validate (multihash) { | ||
if (!(Buffer.isBuffer(multihash))) { | ||
@@ -149,1 +213,15 @@ throw new Error('multihash must be a Buffer') | ||
} | ||
exports.validate = validate | ||
/** | ||
* Returns a prefix from a valid multihash. Throws an error if it is not valid. | ||
* | ||
* @param {Buffer} multihash | ||
* @returns {undefined} | ||
* @throws {Error} | ||
*/ | ||
exports.prefix = function prefix (multihash) { | ||
validate(multihash) | ||
return multihash.slice(0, 2) | ||
} |
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201009
13
2509
0
96
Updatedbs58@^3.1.0