chromatic/dist/multipart-parser-6AKE4G7O.js

Automate visual testing across browsers. Gather UI feedback. Versioned documentation.

'use strict';

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var chunkO2POOKSN_js = require('./chunk-O2POOKSN.js');
require('./chunk-TKGT252T.js');

var f=0,t={START_BOUNDARY:f++,HEADER_FIELD_START:f++,HEADER_FIELD:f++,HEADER_VALUE_START:f++,HEADER_VALUE:f++,HEADER_VALUE_ALMOST_DONE:f++,HEADERS_ALMOST_DONE:f++,PART_DATA_START:f++,PART_DATA:f++,END:f++},w=1,_={PART_BOUNDARY:w,LAST_BOUNDARY:w*=2},O=10,g=13,B=32,m=45,V=58,Y=97,x=122,C=u=>u|32,R=()=>{},y=class{constructor(o){this.index=0,this.flags=0,this.onHeaderEnd=R,this.onHeaderField=R,this.onHeadersEnd=R,this.onHeaderValue=R,this.onPartBegin=R,this.onPartData=R,this.onPartEnd=R,this.boundaryChars={},o=`\r
--`+o;let n=new Uint8Array(o.length);for(let r=0;r<o.length;r++)n[r]=o.charCodeAt(r),this.boundaryChars[n[r]]=!0;this.boundary=n,this.lookbehind=new Uint8Array(this.boundary.length+8),this.state=t.START_BOUNDARY;}write(o){let n=0,r=o.length,E=this.index,{lookbehind:l,boundary:d,boundaryChars:H,index:e,state:i,flags:A}=this,b=this.boundary.length,p=b-1,N=o.length,a,S,h=c=>{this[c+"Mark"]=n;},s=c=>{delete this[c+"Mark"];},D=(c,P,T,k)=>{(P===void 0||P!==T)&&this[c](k&&k.subarray(P,T));},L=(c,P)=>{let T=c+"Mark";T in this&&(P?(D(c,this[T],n,o),delete this[T]):(D(c,this[T],o.length,o),this[T]=0));};for(n=0;n<r;n++)switch(a=o[n],i){case t.START_BOUNDARY:if(e===d.length-2){if(a===m)A|=_.LAST_BOUNDARY;else if(a!==g)return;e++;break}else if(e-1===d.length-2){if(A&_.LAST_BOUNDARY&&a===m)i=t.END,A=0;else if(!(A&_.LAST_BOUNDARY)&&a===O)e=0,D("onPartBegin"),i=t.HEADER_FIELD_START;else return;break}a!==d[e+2]&&(e=-2),a===d[e+2]&&e++;break;case t.HEADER_FIELD_START:i=t.HEADER_FIELD,h("onHeaderField"),e=0;case t.HEADER_FIELD:if(a===g){s("onHeaderField"),i=t.HEADERS_ALMOST_DONE;break}if(e++,a===m)break;if(a===V){if(e===1)return;L("onHeaderField",!0),i=t.HEADER_VALUE_START;break}if(S=C(a),S<Y||S>x)return;break;case t.HEADER_VALUE_START:if(a===B)break;h("onHeaderValue"),i=t.HEADER_VALUE;case t.HEADER_VALUE:a===g&&(L("onHeaderValue",!0),D("onHeaderEnd"),i=t.HEADER_VALUE_ALMOST_DONE);break;case t.HEADER_VALUE_ALMOST_DONE:if(a!==O)return;i=t.HEADER_FIELD_START;break;case t.HEADERS_ALMOST_DONE:if(a!==O)return;D("onHeadersEnd"),i=t.PART_DATA_START;break;case t.PART_DATA_START:i=t.PART_DATA,h("onPartData");case t.PART_DATA:if(E=e,e===0){for(n+=p;n<N&&!(o[n]in H);)n+=b;n-=p,a=o[n];}if(e<d.length)d[e]===a?(e===0&&L("onPartData",!0),e++):e=0;else if(e===d.length)e++,a===g?A|=_.PART_BOUNDARY:a===m?A|=_.LAST_BOUNDARY:e=0;else if(e-1===d.length)if(A&_.PART_BOUNDARY){if(e=0,a===O){A&=~_.PART_BOUNDARY,D("onPartEnd"),D("onPartBegin"),i=t.HEADER_FIELD_START;break}}else A&_.LAST_BOUNDARY&&a===m?(D("onPartEnd"),i=t.END,A=0):e=0;if(e>0)l[e-1]=a;else if(E>0){let c=new Uint8Array(l.buffer,l.byteOffset,l.byteLength);D("onPartData",0,E,c),E=0,h("onPartData"),n--;}break;case t.END:break;default:throw new Error(`Unexpected state entered: ${i}`)}L("onHeaderField"),L("onHeaderValue"),L("onPartData"),this.index=e,this.state=i,this.flags=A;}end(){if(this.state===t.HEADER_FIELD_START&&this.index===0||this.state===t.PART_DATA&&this.index===this.boundary.length)this.onPartEnd();else if(this.state!==t.END)throw new Error("MultipartParser.end(): stream ended unexpectedly")}};function I(u){let o=u.match(/\bfilename=("(.*?)"|([^()<>@,;:\\"/[\]?={}\s\t]+))($|;\s)/i);if(!o)return;let n=o[2]||o[3]||"",r=n.slice(n.lastIndexOf("\\")+1);return r=r.replace(/%22/g,'"'),r=r.replace(/&#(\d{4});/g,(E,l)=>String.fromCharCode(l)),r}async function v(u,o){if(!/multipart/i.test(o))throw new TypeError("Failed to fetch");let n=o.match(/boundary=(?:"([^"]+)"|([^;]+))/i);if(!n)throw new TypeError("no or bad content-type header, no multipart boundary");let r=new y(n[1]||n[2]),E,l,d,H,e,i,A=[],b=new chunkO2POOKSN_js.c,p=s=>{d+=h.decode(s,{stream:!0});},N=s=>{A.push(s);},a=()=>{let s=new chunkO2POOKSN_js.b(A,i,{type:e});b.append(H,s);},S=()=>{b.append(H,d);},h=new TextDecoder("utf-8");h.decode(),r.onPartBegin=function(){r.onPartData=p,r.onPartEnd=S,E="",l="",d="",H="",e="",i=null,A.length=0;},r.onHeaderField=function(s){E+=h.decode(s,{stream:!0});},r.onHeaderValue=function(s){l+=h.decode(s,{stream:!0});},r.onHeaderEnd=function(){if(l+=h.decode(),E=E.toLowerCase(),E==="content-disposition"){let s=l.match(/\bname=("([^"]*)"|([^()<>@,;:\\"/[\]?={}\s\t]+))/i);s&&(H=s[2]||s[3]||""),i=I(l),i&&(r.onPartData=N,r.onPartEnd=a);}else E==="content-type"&&(e=l);l="",E="";};for await(let s of u)r.write(s);return r.end(),b}

exports.toFormData = v;
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