@multiformats/dns - npm Package Compare versions

Comparing version 1.0.14 to 1.0.15

dist/index.min.js

 (function (root, factory) {(typeof module === 'object' && module.exports) ? module.exports = factory() : root.MultiformatsDns = factory()}(typeof self !== 'undefined' ? self : this, function () {
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dr=Te,pr=128,We=127;function Te(r,n){var t=0,n=n||0,s=0,i=n,o,c=r.length;do{if(i>=c)throw Te.bytes=0,new RangeError("Could not decode varint");o=r[i++],t+=s<28?(o&We)<<s:(o&We)*Math.pow(2,s),s+=7}while(o>=pr);return Te.bytes=i-n,t}var mr=Math.pow(2,7),gr=Math.pow(2,14),br=Math.pow(2,21),vr=Math.pow(2,28),yr=Math.pow(2,35),wr=Math.pow(2,42),xr=Math.pow(2,49),Er=Math.pow(2,56),Ar=Math.pow(2,63),Cr=function(r){return r<mr?1:r<gr?2:r<br?3:r<vr?4:r<yr?5:r<wr?6:r<xr?7:r<Er?8:r<Ar?9:10},Tr={encode:hr,decode:dr,encodingLength:Cr},Ir=Tr,J=Ir;function X(r,e=0){return[J.decode(r,e),J.decode.bytes]}function M(r,e,t=0){return J.encode(r,e,t),e}function q(r){return J.encodingLength(r)}function B(r,e){let t=e.byteLength,n=q(r),s=n+q(t),i=new Uint8Array(s+t);return M(r,i,0),M(t,i,n),i.set(e,s),new R(r,t,e,i)}function je(r){let e=D(r),[t,n]=X(e),[s,i]=X(e.subarray(n)),o=e.subarray(n+i);if(o.byteLength!==s)throw new Error("Incorrect length");return new R(t,s,o,e)}function et(r,e){if(r===e)return!0;{let t=e;return r.code===t.code&&r.size===t.size&&t.bytes instanceof Uint8Array&&Ve(r.bytes,t.bytes)}}var R=class{code;size;digest;bytes;constructor(e,t,n,s){this.code=e,this.size=t,this.digest=$(n),this.bytes=$(s)}};var tt=0,Sr="identity",rt=D;function Lr(r,e){if(e?.truncate!=null&&e.truncate!==r.byteLength){if(e.truncate<0||e.truncate>r.byteLength)throw new Error(`Invalid truncate option, must be less than or equal to ${r.byteLength}`);r=r.subarray(0,e.truncate)}return B(tt,rt(r))}var Dr={code:tt,name:Sr,encode:rt,digest:Lr};var De={};v(De,{sha256:()=>Ur,sha512:()=>Pr});var Nr=20;function Le({name:r,code:e,encode:t,minDigestLength:n,maxDigestLength:s}){return new Se(r,e,t,n,s)}var Se=class{name;code;encode;minDigestLength;maxDigestLength;constructor(e,t,n,s,i){this.name=e,this.code=t,this.encode=n,this.minDigestLength=s??Nr,this.maxDigestLength=i}digest(e,t){if(t?.truncate!=null){if(t.truncate<this.minDigestLength)throw new Error(`Invalid truncate option, must be greater than or equal to ${this.minDigestLength}`);if(this.maxDigestLength!=null&&t.truncate>this.maxDigestLength)throw new Error(`Invalid truncate option, must be less than or equal to ${this.maxDigestLength}`)}if(e instanceof Uint8Array){let n=this.encode(e);return n instanceof Uint8Array?nt(n,this.code,t?.truncate):n.then(s=>nt(s,this.code,t?.truncate))}else throw Error("Unknown type, must be binary type")}};function nt(r,e,t){if(t!=null&&t!==r.byteLength){if(t>r.byteLength)throw new Error(`Invalid truncate option, must be less than or equal to ${r.byteLength}`);r=r.subarray(0,t)}return B(e,r)}function it(r){return async e=>new Uint8Array(await crypto.subtle.digest(r,e))}var Ur=Le({name:"sha2-256",code:18,encode:it("SHA-256")}),Pr=Le({name:"sha2-512",code:19,encode:it("SHA-512")});function ot(r,e){let{bytes:t,version:n}=r;return n===0?$r(t,Ne(r),e??S.encoder):Or(t,Ne(r),e??k.encoder)}var at=new WeakMap;function Ne(r){let e=at.get(r);if(e==null){let t=new Map;return at.set(r,t),t}return e}var ne=class r{code;version;multihash;bytes;"/";constructor(e,t,n,s){this.code=t,this.version=e,this.multihash=n,this.bytes=$(s),this["/"]=this.bytes}get asCID(){return this}get byteOffset(){return this.bytes.byteOffset}get byteLength(){return this.bytes.byteLength}toV0(){switch(this.version){case 0:return this;case 1:{let{code:e,multihash:t}=this;if(e!==G)throw new Error("Cannot convert a non dag-pb CID to CIDv0");if(t.code!==_r)throw new Error("Cannot convert non sha2-256 multihash CID to CIDv0");return r.createV0(t)}default:throw Error(`Can not convert CID version ${this.version} to version 0. This is a bug please report`)}}toV1(){switch(this.version){case 0:{let{code:e,digest:t}=this.multihash,n=B(e,t);return r.createV1(this.code,n)}case 1:return this;default:throw Error(`Can not convert CID version ${this.version} to version 1. This is a bug please report`)}}equals(e){return r.equals(this,e)}static equals(e,t){let n=t;return n!=null&&e.code===n.code&&e.version===n.version&&et(e.multihash,n.multihash)}toString(e){return ot(this,e)}toJSON(){return{"/":ot(this)}}link(){return this}[Symbol.toStringTag]="CID";[Symbol.for("nodejs.util.inspect.custom")](){return`CID(${this.toString()})`}static asCID(e){if(e==null)return null;let t=e;if(t instanceof r)return t;if(t["/"]!=null&&t["/"]===t.bytes||t.asCID===t){let{version:n,code:s,multihash:i,bytes:o}=t;return new r(n,s,i,o??ct(n,s,i.bytes))}else if(t[kr]===!0){let{version:n,multihash:s,code:i}=t,o=je(s);return r.create(n,i,o)}else return null}static create(e,t,n){if(typeof t!="number")throw new Error("String codecs are no longer supported");if(!(n.bytes instanceof Uint8Array))throw new Error("Invalid digest");switch(e){case 0:{if(t!==G)throw new Error(`Version 0 CID must use dag-pb (code: ${G}) block encoding`);return new r(e,t,n,n.bytes)}case 1:{let s=ct(e,t,n.bytes);return new r(e,t,n,s)}default:throw new Error("Invalid version")}}static createV0(e){return r.create(0,G,e)}static createV1(e,t){return r.create(1,e,t)}static decode(e){let[t,n]=r.decodeFirst(e);if(n.length!==0)throw new Error("Incorrect length");return t}static decodeFirst(e){let t=r.inspectBytes(e),n=t.size-t.multihashSize,s=D(e.subarray(n,n+t.multihashSize));if(s.byteLength!==t.multihashSize)throw new Error("Incorrect length");let i=s.subarray(t.multihashSize-t.digestSize),o=new R(t.multihashCode,t.digestSize,i,s);return[t.version===0?r.createV0(o):r.createV1(t.codec,o),e.subarray(t.size)]}static inspectBytes(e){let t=0,n=()=>{let[f,p]=X(e.subarray(t));return t+=p,f},s=n(),i=G;if(s===18?(s=0,t=0):i=n(),s!==0&&s!==1)throw new RangeError(`Invalid CID version ${s}`);let o=t,c=n(),a=n(),h=t+a,u=h-o;return{version:s,codec:i,multihashCode:c,digestSize:a,multihashSize:u,size:h}}static parse(e,t){let[n,s]=zr(e,t),i=r.decode(s);if(i.version===0&&e[0]!=="Q")throw Error("Version 0 CID string must not include multibase prefix");return Ne(i).set(n,e),i}};function zr(r,e){switch(r[0]){case"Q":{let t=e??S;return[S.prefix,t.decode(`${S.prefix}${r}`)]}case S.prefix:{let t=e??S;return[S.prefix,t.decode(r)]}case k.prefix:{let t=e??k;return[k.prefix,t.decode(r)]}case H.prefix:{let t=e??H;return[H.prefix,t.decode(r)]}default:{if(e==null)throw Error("To parse non base32, base36 or base58btc encoded CID multibase decoder must be provided");return[r[0],e.decode(r)]}}}function $r(r,e,t){let{prefix:n}=t;if(n!==S.prefix)throw Error(`Cannot string encode V0 in ${t.name} encoding`);let s=e.get(n);if(s==null){let i=t.encode(r).slice(1);return e.set(n,i),i}else return s}function Or(r,e,t){let{prefix:n}=t,s=e.get(n);if(s==null){let i=t.encode(r);return e.set(n,i),i}else return s}var G=112,_r=18;function ct(r,e,t){let n=q(r),s=n+q(e),i=new Uint8Array(s+t.byteLength);return M(r,i,0),M(e,i,n),i.set(t,s),i}var kr=Symbol.for("@ipld/js-cid/CID");var Ue={...Ce,...be,...Ae,...me,...ge,...ye,...we,...xe,...Ee,...ve},Jn={...De,...Ie};function ht(r=0){return new Uint8Array(r)}function ft(r,e,t,n){return{name:r,prefix:e,encoder:{name:r,prefix:e,encode:t},decoder:{decode:n}}}var ut=ft("utf8","u",r=>"u"+new TextDecoder("utf8").decode(r),r=>new TextEncoder().encode(r.substring(1))),Pe=ft("ascii","a",r=>{let e="a";for(let t=0;t<r.length;t++)e+=String.fromCharCode(r[t]);return e},r=>{r=r.substring(1);let e=ht(r.length);for(let t=0;t<r.length;t++)e[t]=r.charCodeAt(t);return e}),Mr={utf8:ut,"utf-8":ut,hex:Ue.base16,latin1:Pe,ascii:Pe,binary:Pe,...Ue},lt=Mr;function dt(r,e="utf8"){let t=lt[e];if(t==null)throw new Error(`Unsupported encoding "${e}"`);return t.encoder.encode(r).substring(1)}var ze=60;function se(r){return{Status:r.Status??0,TC:r.TC??r.flag_tc??!1,RD:r.RD??r.flag_rd??!1,RA:r.RA??r.flag_ra??!1,AD:r.AD??r.flag_ad??!1,CD:r.CD??r.flag_cd??!1,Question:(r.Question??r.questions??[]).map(e=>({name:e.name,type:w[e.type]})),Answer:(r.Answer??r.answers??[]).map(e=>({name:e.name,type:w[e.type],TTL:e.TTL??e.ttl??ze,data:e.data instanceof Uint8Array?dt(e.data):e.data}))}}var qr=4;function $e(r,e={}){let t=new Q({concurrency:e.queryConcurrency??qr});return async(n,s={})=>{let i=s?.logger?.forComponent("dns:dns-json-over-https"),o=new URLSearchParams;o.set("name",n),te(s.types).forEach(a=>{o.append("type",w[a])}),s.onProgress?.(new U("dns:query",n)),i?.("GET %s",`${r}?${o}`);let c=await t.add(async()=>{let a=await fetch(`${r}?${o}`,{headers:{accept:"application/dns-json"},signal:s?.signal});if(i?.("GET %s %d",a.url,a.status),a.status!==200)throw new Error(`Unexpected HTTP status: ${a.status} - ${a.statusText}`);let h=se(await a.json());return s.onProgress?.(new U("dns:response",h)),h},{signal:s.signal});if(c==null)throw new Error("No DNS response received");return c}}function pt(){return[$e("https://cloudflare-dns.com/dns-query"),$e("https://dns.google/resolve")]}var bt=qe(gt(),1);var Oe=class{lru;constructor(e){this.lru=(0,bt.default)(e)}get(e,t){let n=!0,s=[];for(let i of t){let o=this.getAnswers(e,i);if(o.length===0){n=!1;break}s.push(...o)}if(n)return se({answers:s})}getAnswers(e,t){let n=`${e.toLowerCase()}-${t}`,s=this.lru.get(n);if(s!=null){let i=s.filter(o=>o.expires>Date.now()).map(({expires:o,value:c})=>({...c,TTL:Math.round((o-Date.now())/1e3),type:w[c.type]}));return i.length===0&&this.lru.remove(n),i}return[]}add(e,t){let n=`${e.toLowerCase()}-${t.type}`,s=this.lru.get(n)??[];s.push({expires:Date.now()+(t.TTL??ze)*1e3,value:t}),this.lru.set(n,s)}remove(e,t){let n=`${e.toLowerCase()}-${t}`;this.lru.remove(n)}clear(){this.lru.clear()}};function vt(r){return new Oe(r)}var Rr=1e3,Br=()=>Math.random()>.5?-1:1,ie=class{resolvers;cache;logger;sorter;constructor(e){this.resolvers={},this.cache=vt(e.cacheSize??Rr),this.logger=e.logger,this.sorter=e.sorter??Br,Object.entries(e.resolvers??{}).forEach(([t,n])=>{Array.isArray(n)||(n=[n]),t.endsWith(".")||(t=`${t}.`),this.resolvers[t]=n}),this.resolvers["."]==null&&(this.resolvers["."]=pt())}async query(e,t={}){let n=te(t.types),s=t.cached!==!1?this.cache.get(e,n):void 0;if(s!=null)return t.onProgress?.(new U("dns:cache",s)),s;let i=`${e.split(".").pop()}.`,o=(this.resolvers[i]??this.resolvers["."]).sort(this.sorter),c=[];for(let a of o){if(t.signal?.aborted===!0)break;try{let h=await a(e,{...t,logger:this.logger,types:n});if(h.Answer.length===0)throw new j("Query result had no answers");for(let u of h.Answer)this.cache.add(e,u);return h}catch(h){c.push(h),t.onProgress?.(new U("dns:error",h))}}throw new K(c,`DNS lookup of ${e} ${n} failed`)}};var w;(function(r){r[r.A=1]="A",r[r.CNAME=5]="CNAME",r[r.TXT=16]="TXT",r[r.AAAA=28]="AAAA"})(w||(w={}));var Fr=32;function Vr(r={}){return new ie(r)}return Tt(Qr);})();
 return MultiformatsDns}));
 //# sourceMappingURL=index.min.js.map

dist/src/dns.d.ts

@@ -6,2 +6,3 @@ import type { DNS as DNSInterface, DNSInit, DNSResponse, QueryOptions } from './index.ts';
     private readonly logger?;
+    private readonly sorter;
     constructor(init: DNSInit);
@@ -8,0 +9,0 @@ /**

dist/src/dns.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"dns.d.ts","sourceRoot":"","sources":["../../src/dns.ts"],"names":[],"mappings":"AAKA,OAAO,KAAK,EAAE,GAAG,IAAI,YAAY,EAAE,OAAO,EAAE,WAAW,EAAE,YAAY,EAAE,MAAM,YAAY,CAAA;AAOzF,qBAAa,GAAI,YAAW,YAAY;IACtC,OAAO,CAAC,QAAQ,CAAC,SAAS,CAA+B;IACzD,OAAO,CAAC,QAAQ,CAAC,KAAK,CAAa;IACnC,OAAO,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAiB;gBAE5B,IAAI,EAAE,OAAO;IAwB1B;;;;;;;OAOG;IACG,KAAK,CAAE,MAAM,EAAE,MAAM,EAAE,OAAO,GAAE,YAAiB,GAAG,OAAO,CAAC,WAAW,CAAC;CA2C/E"}
+{"version":3,"file":"dns.d.ts","sourceRoot":"","sources":["../../src/dns.ts"],"names":[],"mappings":"AAKA,OAAO,KAAK,EAAE,GAAG,IAAI,YAAY,EAAE,OAAO,EAAE,WAAW,EAAE,YAAY,EAAqB,MAAM,YAAY,CAAA;AAQ5G,qBAAa,GAAI,YAAW,YAAY;IACtC,OAAO,CAAC,QAAQ,CAAC,SAAS,CAA+B;IACzD,OAAO,CAAC,QAAQ,CAAC,KAAK,CAAa;IACnC,OAAO,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAiB;IACzC,OAAO,CAAC,QAAQ,CAAC,MAAM,CAAmB;gBAE7B,IAAI,EAAE,OAAO;IAyB1B;;;;;;;OAOG;IACG,KAAK,CAAE,MAAM,EAAE,MAAM,EAAE,OAAO,GAAE,YAAiB,GAAG,OAAO,CAAC,WAAW,CAAC;CA6C/E"}

dist/src/dns.js

 import { CustomProgressEvent } from 'progress-events';
-import { DNSQueryFailedError } from "./errors.js";
+import { DNSQueryFailedError, EmptyDNSAnswerError } from "./errors.js";
 import { defaultResolver } from "./resolvers/default.js";
@@ -7,2 +7,3 @@ import { cache } from "./utils/cache.js";
 const DEFAULT_ANSWER_CACHE_SIZE = 1000;
+const RANDOM = () => (Math.random() > 0.5) ? -1 : 1;
 export class DNS {
@@ -12,2 +13,3 @@ resolvers;
     logger;
+    sorter;
     constructor(init) {
@@ -17,2 +19,3 @@ this.resolvers = {};
         this.logger = init.logger;
+        this.sorter = init.sorter ?? RANDOM;
         Object.entries(init.resolvers ?? {}).forEach(([tld, resolver]) => {
@@ -49,5 +52,3 @@ if (!Array.isArray(resolver)) {
         const tld = `${domain.split('.').pop()}.`;
-        const resolvers = (this.resolvers[tld] ?? this.resolvers['.']).sort(() => {
-            return (Math.random() > 0.5) ? -1 : 1;
-        });
+        const resolvers = (this.resolvers[tld] ?? this.resolvers['.']).sort(this.sorter);
         const errors = [];
@@ -65,2 +66,5 @@ for (const resolver of resolvers) {
                 });
+                if (result.Answer.length === 0) {
+                    throw new EmptyDNSAnswerError('Query result had no answers');
+                }
                 for (const answer of result.Answer) {
@@ -67,0 +71,0 @@ this.cache.add(domain, answer);

dist/src/dns.js.map

@@ -1,1 +0,1 @@
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dist/src/errors.d.ts

@@ -5,2 +5,6 @@ export declare class DNSQueryFailedError extends AggregateError {
 }
+export declare class EmptyDNSAnswerError extends AggregateError {
+    static name: string;
+    name: string;
+}
 //# sourceMappingURL=errors.d.ts.map

dist/src/errors.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"errors.d.ts","sourceRoot":"","sources":["../../src/errors.ts"],"names":[],"mappings":"AAAA,qBAAa,mBAAoB,SAAQ,cAAc;IACrD,MAAM,CAAC,IAAI,SAAwB;IACnC,IAAI,SAAwB;CAC7B"}
+{"version":3,"file":"errors.d.ts","sourceRoot":"","sources":["../../src/errors.ts"],"names":[],"mappings":"AAAA,qBAAa,mBAAoB,SAAQ,cAAc;IACrD,MAAM,CAAC,IAAI,SAAwB;IACnC,IAAI,SAAwB;CAC7B;AAED,qBAAa,mBAAoB,SAAQ,cAAc;IACrD,MAAM,CAAC,IAAI,SAAwB;IACnC,IAAI,SAAwB;CAC7B"}

dist/src/errors.js

@@ -5,2 +5,6 @@ export class DNSQueryFailedError extends AggregateError {
 }
+export class EmptyDNSAnswerError extends AggregateError {
+    static name = 'EmptyDNSAnswerError';
+    name = 'EmptyDNSAnswerError';
+}
 //# sourceMappingURL=errors.js.map

dist/src/errors.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"errors.js","sourceRoot":"","sources":["../../src/errors.ts"],"names":[],"mappings":"AAAA,MAAM,OAAO,mBAAoB,SAAQ,cAAc;IACrD,MAAM,CAAC,IAAI,GAAG,qBAAqB,CAAA;IACnC,IAAI,GAAG,qBAAqB,CAAA"}
+{"version":3,"file":"errors.js","sourceRoot":"","sources":["../../src/errors.ts"],"names":[],"mappings":"AAAA,MAAM,OAAO,mBAAoB,SAAQ,cAAc;IACrD,MAAM,CAAC,IAAI,GAAG,qBAAqB,CAAA;IACnC,IAAI,GAAG,qBAAqB,CAAA;;AAG9B,MAAM,OAAO,mBAAoB,SAAQ,cAAc;IACrD,MAAM,CAAC,IAAI,GAAG,qBAAqB,CAAA;IACnC,IAAI,GAAG,qBAAqB,CAAA"}

dist/src/index.d.ts

@@ -171,2 +171,5 @@ /**
 export declare const MAX_RECURSIVE_DEPTH = 32;
+export interface DNSResolverSorter {
+    (a: DNSResolver, b: DNSResolver): -1 | 0 | 1;
+}
 export interface QueryOptions extends ProgressOptions<ResolveDnsProgressEvents> {
@@ -238,4 +241,10 @@ signal?: AbortSignal;
     logger?: ComponentLogger;
+    /**
+     * Sort resolvers before invoking them
+     *
+     * @default random
+     */
+    sorter?: DNSResolverSorter;
 }
 export declare function dns(init?: DNSInit): DNS;
 //# sourceMappingURL=index.d.ts.map

dist/src/index.d.ts.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GAgFG;AAGH,OAAO,KAAK,EAAE,WAAW,EAAE,MAAM,sBAAsB,CAAA;AACvD,OAAO,KAAK,EAAE,eAAe,EAAE,MAAM,mBAAmB,CAAA;AACxD,OAAO,KAAK,EAAE,aAAa,EAAE,eAAe,EAAE,MAAM,iBAAiB,CAAA;AAErE;;;;GAIG;AACH,oBAAY,UAAU;IACpB,CAAC,IAAI;IACL,KAAK,IAAI;IACT,GAAG,KAAK;IACR,IAAI,KAAK;CACV;AAED,MAAM,WAAW,QAAQ;IACvB;;OAEG;IACH,IAAI,EAAE,MAAM,CAAA;IAEZ;;;;OAIG;IACH,IAAI,EAAE,UAAU,CAAA;CACjB;AAED,MAAM,WAAW,MAAM;IACrB;;OAEG;IACH,IAAI,EAAE,MAAM,CAAA;IAEZ;;;;OAIG;IACH,IAAI,EAAE,UAAU,CAAA;IAEhB;;;OAGG;IACH,GAAG,EAAE,MAAM,CAAA;IAEX;;;OAGG;IACH,IAAI,EAAE,MAAM,CAAA;CACb;AAED,MAAM,WAAW,WAAW;IAC1B;;;;OAIG;IACH,MAAM,EAAE,MAAM,CAAA;IAEd;;;OAGG;IACH,EAAE,EAAE,OAAO,CAAA;IAEX;;OAEG;IACH,EAAE,EAAE,OAAO,CAAA;IAEX;;OAEG;IACH,EAAE,EAAE,OAAO,CAAA;IAEX;;OAEG;IACH,EAAE,EAAE,OAAO,CAAA;IAEX;;OAEG;IACH,EAAE,EAAE,OAAO,CAAA;IAEX;;OAEG;IACH,QAAQ,EAAE,QAAQ,EAAE,CAAA;IAEpB;;OAEG;IACH,MAAM,EAAE,MAAM,EAAE,CAAA;CACjB;AAED;;GAEG;AACH,eAAO,MAAM,mBAAmB,KAAK,CAAA;AAErC,MAAM,WAAW,iBAAiB;IAChC,CAAC,CAAC,EAAE,WAAW,EAAE,CAAC,EAAE,WAAW,GAAG,CAAC,CAAC,GAAG,CAAC,GAAG,CAAC,CAAA;CAC7C;AAED,MAAM,WAAW,YAAa,SAAQ,eAAe,CAAC,wBAAwB,CAAC;IAC7E,MAAM,CAAC,EAAE,WAAW,CAAA;IAEpB;;;;OAIG;IACH,MAAM,CAAC,EAAE,OAAO,CAAA;IAEhB;;;;OAIG;IACH,KAAK,CAAC,EAAE,UAAU,GAAG,UAAU,EAAE,CAAA;IAEjC;;OAEG;IACH,MAAM,CAAC,EAAE,eAAe,CAAA;CACzB;AAED,MAAM,WAAW,GAAG;IAClB,KAAK,CAAC,IAAI,EAAE,MAAM,EAAE,OAAO,CAAC,EAAE,YAAY,GAAG,OAAO,CAAC,WAAW,CAAC,CAAA;CAClE;AAED,MAAM,MAAM,wBAAwB,GAClC,aAAa,CAAC,WAAW,EAAE,MAAM,CAAC,GAClC,aAAa,CAAC,WAAW,EAAE,MAAM,CAAC,GAClC,aAAa,CAAC,cAAc,EAAE,WAAW,CAAC,GAC1C,aAAa,CAAC,WAAW,EAAE,KAAK,CAAC,CAAA;AAEnC,MAAM,MAAM,YAAY,GAAG,MAAM,CAAC,MAAM,EAAE,WAAW,GAAG,WAAW,EAAE,CAAC,CAAA;AAEtE,MAAM,WAAW,OAAO;IACtB;;;;;;;;;;;;;;;;;;;;;;;;;;;OA2BG;IACH,SAAS,CAAC,EAAE,YAAY,CAAA;IAExB;;;;;;OAMG;IACH,SAAS,CAAC,EAAE,MAAM,CAAA;IAElB;;OAEG;IACH,MAAM,CAAC,EAAE,eAAe,CAAA;IAExB;;;;OAIG;IACH,MAAM,CAAC,EAAE,iBAAiB,CAAA;CAC3B;AAED,wBAAgB,GAAG,CAAE,IAAI,GAAE,OAAY,GAAG,GAAG,CAE5C"}

dist/src/index.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GAgFG;AAEH,OAAO,EAAE,GAAG,IAAI,QAAQ,EAAE,MAAM,UAAU,CAAA;AAK1C;;;;GAIG;AACH,MAAM,CAAN,IAAY,UAKX;AALD,WAAY,UAAU;IACpB,qCAAK,CAAA;IACL,6CAAS,CAAA;IACT,0CAAQ,CAAA;IACR,4CAAS,CAAA;AACX,CAAC,EALW,UAAU,KAAV,UAAU,QAKrB;AAuFD;;GAEG;AACH,MAAM,CAAC,MAAM,mBAAmB,GAAG,EAAE,CAAA;AAmFrC,MAAM,UAAU,GAAG,CAAE,OAAgB,EAAE;IACrC,OAAO,IAAI,QAAQ,CAAC,IAAI,CAAC,CAAA;AAC3B,CAAC"}
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GAgFG;AAEH,OAAO,EAAE,GAAG,IAAI,QAAQ,EAAE,MAAM,UAAU,CAAA;AAK1C;;;;GAIG;AACH,MAAM,CAAN,IAAY,UAKX;AALD,WAAY,UAAU;IACpB,qCAAK,CAAA;IACL,6CAAS,CAAA;IACT,0CAAQ,CAAA;IACR,4CAAS,CAAA;AACX,CAAC,EALW,UAAU,KAAV,UAAU,QAKrB;AAuFD;;GAEG;AACH,MAAM,CAAC,MAAM,mBAAmB,GAAG,EAAE,CAAA;AA8FrC,MAAM,UAAU,GAAG,CAAE,OAAgB,EAAE;IACrC,OAAO,IAAI,QAAQ,CAAC,IAAI,CAAC,CAAA;AAC3B,CAAC"}

dist/typedoc-urls.json

@@ -10,2 +10,4 @@ {
   ".:DNSInit": "https://multiformats.github.io/js-dns/interfaces/index.DNSInit.html",
+  "DNSResolverSorter": "https://multiformats.github.io/js-dns/interfaces/index.DNSResolverSorter.html",
+  ".:DNSResolverSorter": "https://multiformats.github.io/js-dns/interfaces/index.DNSResolverSorter.html",
   "DNSResponse": "https://multiformats.github.io/js-dns/interfaces/index.DNSResponse.html",
@@ -12,0 +14,0 @@ ".:DNSResponse": "https://multiformats.github.io/js-dns/interfaces/index.DNSResponse.html",

package.json

 {
   "name": "@multiformats/dns",
-  "version": "1.0.14",
+  "version": "1.0.15",
   "description": "Resolve DNS queries with browser fallback",
@@ -174,3 +174,3 @@ "license": "Apache-2.0 OR MIT",
     "aegir": "^48.0.13",
-    "sinon": "^21.0.0"
+    "sinon": "^22.0.0"
   },
@@ -177,0 +177,0 @@ "browser": {

src/dns.ts

 import { CustomProgressEvent } from 'progress-events'
-import { DNSQueryFailedError } from './errors.ts'
+import { DNSQueryFailedError, EmptyDNSAnswerError } from './errors.ts'
 import { defaultResolver } from './resolvers/default.ts'
 import { cache } from './utils/cache.ts'
 import { getTypes } from './utils/get-types.ts'
-import type { DNS as DNSInterface, DNSInit, DNSResponse, QueryOptions } from './index.ts'
+import type { DNS as DNSInterface, DNSInit, DNSResponse, QueryOptions, DNSResolverSorter } from './index.ts'
 import type { DNSResolver } from './resolvers/index.ts'
@@ -12,2 +12,3 @@ import type { AnswerCache } from './utils/cache.ts'
 const DEFAULT_ANSWER_CACHE_SIZE = 1000
+const RANDOM: DNSResolverSorter = () => (Math.random() > 0.5) ? -1 : 1
 
@@ -18,2 +19,3 @@ export class DNS implements DNSInterface {
   private readonly logger?: ComponentLogger
+  private readonly sorter: DNSResolverSorter
 
@@ -24,2 +26,3 @@ constructor (init: DNSInit) {
     this.logger = init.logger
+    this.sorter = init.sorter ?? RANDOM
 
@@ -64,5 +67,3 @@ Object.entries(init.resolvers ?? {}).forEach(([tld, resolver]) => {
     const tld = `${domain.split('.').pop()}.`
-    const resolvers = (this.resolvers[tld] ?? this.resolvers['.']).sort(() => {
-      return (Math.random() > 0.5) ? -1 : 1
-    })
+    const resolvers = (this.resolvers[tld] ?? this.resolvers['.']).sort(this.sorter)
 
@@ -84,2 +85,6 @@ const errors: Error[] = []
 
+        if (result.Answer.length === 0) {
+          throw new EmptyDNSAnswerError('Query result had no answers')
+        }
+
         for (const answer of result.Answer) {
@@ -86,0 +91,0 @@ this.cache.add(domain, answer)

src/errors.ts

@@ -5,1 +5,6 @@ export class DNSQueryFailedError extends AggregateError {
 }
+
+export class EmptyDNSAnswerError extends AggregateError {
+  static name = 'EmptyDNSAnswerError'
+  name = 'EmptyDNSAnswerError'
+}

src/index.ts

@@ -190,2 +190,6 @@ /**
 
+export interface DNSResolverSorter {
+  (a: DNSResolver, b: DNSResolver): -1 | 0 | 1
+}
+
 export interface QueryOptions extends ProgressOptions<ResolveDnsProgressEvents> {
@@ -270,2 +274,9 @@ signal?: AbortSignal
   logger?: ComponentLogger
+
+  /**
+   * Sort resolvers before invoking them
+   *
+   * @default random
+   */
+  sorter?: DNSResolverSorter
 }
@@ -272,0 +283,0 @@

No alert changes

Improved metrics

Total package byte prevSize

298350

1.07%

Lines of code

1864

2.31%

No dependency changes