@getalby/lightning-tools/dist/lightning-tools.umd.js

Collection of helpful building blocks and tools to develop Bitcoin Lightning web apps

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/*! scure-base - MIT License (c) 2022 Paul Miller (paulmillr.com) */
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r=t[e],n=f[t[e]].toString();d[n]=r}const p={1:r=>t.encode(e.fromWordsUnsafe(r)),16:r=>t.encode(e.fromWordsUnsafe(r)),13:t=>r.encode(e.fromWordsUnsafe(t)),19:r=>t.encode(e.fromWordsUnsafe(r)),23:r=>t.encode(e.fromWordsUnsafe(r)),27:r=>t.encode(e.fromWordsUnsafe(r)),6:m,24:m,3:function(r){const n=[];let o,s,i,a,c,h=e.fromWordsUnsafe(r);for(;h.length>0;)o=t.encode(h.slice(0,33)),s=t.encode(h.slice(33,41)),i=parseInt(t.encode(h.slice(41,45)),16),a=parseInt(t.encode(h.slice(45,49)),16),c=parseInt(t.encode(h.slice(49,51)),16),h=h.slice(51),n.push({pubkey:o,short_channel_id:s,fee_base_msat:i,fee_proportional_millionths:a,cltv_expiry_delta:c});return n},5:function(e){const t=e.slice().reverse().map(e=>[!!(1&e),!!(2&e),!!(4&e),!!(8&e),!!(16&e)]).reduce((e,t)=>e.concat(t),[]);for(;t.length<2*c.length;)t.push(!1);const r={};c.forEach((e,n)=>{let o;o=t[2*n]?"required":t[2*n+1]?"supported":"unsupported",r[e]=o});const n=t.slice(2*c.length);return r.extra_bits={start_bit:2*c.length,bits:n,has_required:n.reduce((e,t,r)=>r%2!=0?e||!1:e||t,!1)},r}};function w(t){return r=>({tagCode:parseInt(t),words:e.encode("unknown",r,Number.MAX_SAFE_INTEGER)})}function m(e){return e.reverse().reduce((e,t,r)=>e+t*Math.pow(32,r),0)}function y(e,t){let r,n;if(e.slice(-1).match(/^[munp]$/))r=e.slice(-1),n=e.slice(0,-1);else{if(e.slice(-1).match(/^[^munp0-9]$/))throw new Error("Not a valid multiplier for the amount");n=e}if(!n.match(/^\d+$/))throw new Error("Not a valid human readable amount");const o=BigInt(n),s=r?o*u/h[r]:o*u;if("p"===r&&o%BigInt(10)!==BigInt(0)||s>l)throw new Error("Amount is outside of valid range");return t?s.toString():s}return v={decode:function(r,c){if("string"!=typeof r)throw new Error("Lightning Payment Request must be string");if("ln"!==r.slice(0,2).toLowerCase())throw new Error("Not a proper lightning payment request");const h=[],l=e.decode(r,Number.MAX_SAFE_INTEGER);r=r.toLowerCase();const u=l.prefix;let g=l.words,b=r.slice(u.length+1),v=g.slice(-104);g=g.slice(0,-104);let E=u.match(/^ln(\S+?)(\d*)([a-zA-Z]?)$/);if(E&&!E[2]&&(E=u.match(/^ln(\S+)$/)),!E)throw new Error("Not a proper lightning payment request");h.push({name:"lightning_network",letters:"ln"});const x=E[1];let A;if(c){if(void 0===c.bech32||void 0===c.pubKeyHash||void 0===c.scriptHash||!Array.isArray(c.validWitnessVersions))throw new Error("Invalid network");A=c}else switch(x){case n.bech32:A=n;break;case o.bech32:A=o;break;case s.bech32:A=s;break;case i.bech32:A=i;break;case a.bech32:A=a}if(!A||A.bech32!==x)throw new Error("Unknown coin bech32 prefix");h.push({name:"coin_network",letters:x,value:A});const k=E[2];let U;if(k){U=y(k+E[3],!0),h.push({name:"amount",letters:E[2]+E[3],value:U})}else U=null;h.push({name:"separator",letters:"1"});const $=m(g.slice(0,7));let L,I,N,R;for(g=g.slice(7),h.push({name:"timestamp",letters:b.slice(0,7),value:$}),b=b.slice(7);g.length>0;){const e=g[0].toString();L=d[e]||"unknown_tag",I=p[e]||w(e),g=g.slice(1),N=m(g.slice(0,2)),g=g.slice(2),R=g.slice(0,N),g=g.slice(N),h.push({name:L,tag:b[0],letters:b.slice(0,3+N),value:I(R)}),b=b.slice(3+N)}h.push({name:"signature",letters:b.slice(0,104),value:t.encode(e.fromWordsUnsafe(v))}),b=b.slice(104),h.push({name:"checksum",letters:b});let _={paymentRequest:r,sections:h,get expiry(){let e=h.find(e=>"expiry"===e.name);if(e)return S("timestamp")+e.value},get route_hints(){return h.filter(e=>"route_hint"===e.name).map(e=>e.value)}};for(let e in f)"route_hint"!==e&&Object.defineProperty(_,e,{get:()=>S(e)});return _;function S(e){let t=h.find(t=>t.name===e);return t?t.value:void 0}},hrpToMillisat:y}}();const k=e=>Uint8Array.from(e.match(/.{1,2}/g).map(e=>parseInt(e,16))),U=e=>{if(!e)return null;try{const t=A.decode(e);if(!t||!t.sections)return null;const r=t.sections.find(e=>"payment_hash"===e.name);if("payment_hash"!==r?.name||!r.value)return null;const n=r.value;let o=0,s=0,i="0";const a=t.sections.find(e=>"amount"===e.name);"amount"===a?.name&&a.value&&(i=a.value,s=parseInt(a.value),o=parseInt(a.value)/1e3);const c=t.sections.find(e=>"timestamp"===e.name);if("timestamp"!==c?.name||!c.value)return null;const h=c.value;let l;const u=t.sections.find(e=>"expiry"===e.name);"expiry"===u?.name&&(l=u.value);const f=t.sections.find(e=>"description"===e.name);return{paymentHash:n,satoshi:o,millisatoshi:s,amountRaw:i,timestamp:h,expiry:l,description:"description"===f?.name?f?.value:void 0}}catch{return null}};function $(e,t){try{if(!/^[0-9a-fA-F]{64}$/.test(e))return!1;if(!/^[0-9a-fA-F]{64}$/.test(t))return!1;return t===a(g(k(e)))}catch{return!1}}class L{constructor(e){if(this.paymentRequest=e.pr,!this.paymentRequest)throw new Error("Invalid payment request");const t=U(this.paymentRequest);if(!t)throw new Error("Failed to decode payment request");this.paymentHash=t.paymentHash,this.satoshi=t.satoshi,this.millisatoshi=t.millisatoshi,this.amountRaw=t.amountRaw,this.timestamp=t.timestamp,this.expiry=t.expiry,this.createdDate=new Date(1e3*this.timestamp),this.expiryDate=this.expiry?new Date(1e3*(this.timestamp+this.expiry)):void 0,this.description=t.description??null,this.verify=e.verify??null,this.preimage=e.preimage??null,this.successAction=e.successAction??null}async isPaid(){if(this.preimage)return this.validatePreimage(this.preimage);if(this.verify)return await this.verifyPayment();throw new Error("Could not verify payment")}validatePreimage(e){return!(!e||!this.paymentHash)&&$(e,this.paymentHash)}async verifyPayment(){try{if(!this.verify)throw new Error("LNURL verify not available");const e=await fetch(this.verify);if(!e.ok)throw new Error(`Verification request failed: ${e.status} ${e.statusText}`);const t=await e.json();return t.preimage&&(this.preimage=t.preimage),t.settled}catch(e){return console.error("Failed to check LNURL-verify",e),!1}}hasExpired(){const{expiryDate:e}=this;return!!e&&e.getTime()<Date.now()}}const I=e=>{if("keysend"!==e.tag)throw new Error("Invalid keysend params");if("OK"!==e.status)throw new Error("Keysend status not OK");if(!e.pubkey)throw new Error("Pubkey does not exist");const t=e.pubkey;let r,n;return e.customData&&e.customData[0]&&(r=e.customData[0].customKey,n=e.customData[0].customValue),{destination:t,customKey:r,customValue:n}};async function N({satoshi:e,comment:t,p:r,e:n,relays:o},s={}){const i=s.nostr||globalThis.nostr;if(!i)throw new Error("nostr option or window.nostr is not available");const a=[["relays",...o],["amount",e.toString()]];r&&a.push(["p",r]),n&&a.push(["e",n]);const c={pubkey:await i.getPublicKey(),created_at:Math.floor(Date.now()/1e3),kind:9734,tags:a,content:t??""};return c.id=S(c),await i.signEvent(c)}function R(e){if("string"!=typeof e.content)return!1;if("number"!=typeof e.created_at)return!1;if(!Array.isArray(e.tags))return!1;for(let t=0;t<e.tags.length;t++){const r=e.tags[t];if(!Array.isArray(r))return!1;for(let e=0;e<r.length;e++)if("object"==typeof r[e])return!1}return!0}function _(e){if(!R(e))throw new Error("can't serialize event with wrong or missing properties");return JSON.stringify([0,e.pubkey,e.created_at,e.kind,e.tags,e.content])}function S(e){return a(g(_(e)))}function D(e,t){let r,n;return t&&e&&(r=e.names?.[t],n=r?e.relays?.[r]:void 0),[e,r,n]}const W=/((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=+$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=+$,\w]+@)[A-Za-z0-9.-]+)((?:\/[+~%/.\w-_]*)?\??(?:[-+=&;%@.\w_]*)#?(?:[\w]*))?)/,T=e=>!!e&&W.test(e),P=({amount:e,min:t,max:r})=>e>0&&e>=t&&e<=r,H=async e=>{if("payRequest"!==e.tag)throw new Error("Invalid pay service params");const t=(e.callback+"").trim();if(!T(t))throw new Error("Callback must be a valid url");const r=Math.ceil(Number(e.minSendable||0)),n=Math.floor(Number(e.maxSendable));if(!r||!n||r>n)throw new Error("Invalid pay service params");let o,s;try{o=JSON.parse(e.metadata+""),s=a(g(e.metadata+""))}catch{o=[],s=a(g("[]"))}let i="",c="",h="",l="";for(let e=0;e<o.length;e++){const[t,r]=o[e];switch(t){case"text/plain":h=r;break;case"text/identifier":l=r;break;case"text/email":i=r;break;case"image/png;base64":case"image/jpeg;base64":c="data:"+t+","+r}}const u=e.payerData;let f;try{f=new URL(t).hostname}catch{}return{callback:t,fixed:r===n,min:r,max:n,domain:f,metadata:o,metadataHash:s,identifier:l,email:i,description:h,image:c,payerData:u,commentAllowed:Number(e.commentAllowed)||0,rawData:e,allowsNostr:e.allowsNostr||!1}},C=async(e,t)=>{const{boost:r}=e;t||(t={});const n=t.webln||globalThis.webln;if(!n)throw new Error("WebLN not available");if(!n.keysend)throw new Error("Keysend not available in current WebLN provider");const o=e.amount||Math.floor(r.value_msat/1e3),s={destination:e.destination,amount:o,customRecords:{7629169:JSON.stringify(r)}};e.customKey&&e.customValue&&(s.customRecords[e.customKey]=e.customValue),await n.enable();return await n.keysend(s)},B=/^((?:[^<>()[\]\\.,;:\s@"]+(?:\.[^<>()[\]\\.,;:\s@"]+)*)|(?:".+"))@((?:\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(?:(?:[a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/,O="https://api.getalby.com/lnurl";function j(e,t){return{payInvoice:async r=>{const n=new L({pr:r.invoice});if(n.satoshi>t)throw new Error(`Invoice amount (${n.satoshi} sats) exceeds maxAmount (${t} sats)`);return e.payInvoice(r)}}}const q=e=>{const t=e.replace("L402","").replace("LSAT","").trim(),r={},n=/(\w+)=("([^"]*)"|'([^']*)'|([^,]*))/g;let o;for(;null!==(o=n.exec(t));)r[o[1]]=o[3]||o[4]||o[5];if(!r.token&&r.macaroon&&(r.token=r.macaroon,delete r.macaroon),!("token"in r)||"string"!=typeof r.token)throw new Error("No macaroon or token found in www-authenticate header");if(!("invoice"in r)||"string"!=typeof r.invoice)throw new Error("No invoice found in www-authenticate header");return r},F=async(e,t,r,n,o)=>{const s=q(e),i=s.token||s.macaroon,a=s.invoice;if(!i)throw new Error("L402: missing token/macaroon in WWW-Authenticate header");if(!a)throw new Error("L402: missing invoice in WWW-Authenticate header");const c=await o.payInvoice({invoice:a});return n.set("Authorization",`L402 ${i}:${c.preimage}`),fetch(t,r)},K=e=>{let t;try{t=JSON.parse(decodeURIComponent(escape(atob(e))))}catch(e){throw new Error("x402: invalid PAYMENT-REQUIRED header (not valid base64-encoded JSON)")}if(!Array.isArray(t.accepts)||0===t.accepts.length)throw new Error("x402: PAYMENT-REQUIRED header contains no payment options");return{accepts:t.accepts}},M=e=>{let t;try{({accepts:t}=K(e))}catch(e){return null}const r=t.find(e=>"lightning"===e?.extra?.paymentMethod);return r?.extra?.invoice?r:null},V=async(e,t,r,n,o)=>{const{accepts:s}=K(e),i=s.find(e=>"lightning"===e?.extra?.paymentMethod);if(!i)throw new Error("x402: unsupported x402 network, only Bitcoin lightning network is supported.");if(!i.extra?.invoice)throw new Error("x402: payment requirements missing lightning invoice");const a=new L({pr:i.extra.invoice});if(a.amountRaw!=i.amount)throw new Error(`Invalid invoice amount: ${a.amountRaw}. expected ${i.amount}`);return await o.payInvoice({invoice:a.paymentRequest}),n.set("payment-signature",((e,t,r,n)=>{const o=JSON.stringify({x402Version:2,scheme:e,network:t,payload:{invoice:r},accepted:n});return btoa(unescape(encodeURIComponent(o)))})(i.scheme,i.network,a.paymentRequest,i)),fetch(t,r)},z=e=>{if(!e.trimStart().toLowerCase().startsWith("payment"))return null;const t=e.slice(e.toLowerCase().indexOf("payment")+7).trim(),r={},n=/(\w+)=("([^"]*)"|'([^']*)'|([^,\s]*))/g;let o;for(;null!==(o=n.exec(t));)r[o[1]]=o[3]??o[4]??o[5]??"";return"lightning"===r.method&&"charge"===r.intent&&r.id&&r.realm&&r.request?{id:r.id,realm:r.realm,method:r.method,intent:r.intent,request:r.request,...r.expires?{expires:r.expires}:{}}:null},J=e=>{if(null===e||"object"!=typeof e)return JSON.stringify(e);if(Array.isArray(e))return"["+e.map(J).join(",")+"]";return"{"+Object.keys(e).sort().map(t=>JSON.stringify(t)+":"+J(e[t])).join(",")+"}"},G=(e,t,r)=>{const n={id:e.id,intent:e.intent,method:e.method,realm:e.realm,request:e.request};e.expires&&(n.expires=e.expires);return(e=>{const t=(new TextEncoder).encode(e);let r="";for(let e=0;e<t.length;e++)r+=String.fromCharCode(t[e]);return btoa(r).replace(/\+/g,"-").replace(/\//g,"_").replace(/=/g,"")})(J({challenge:n,payload:{preimage:t}}))},Z=async(e,t,r,n,o)=>{const s=z(e);if(!s)throw new Error("mpp: invalid or unsupported WWW-Authenticate challenge (expected Payment method=lightning intent=charge)");let i;try{i=JSON.parse((e=>{const t=e.replace(/-/g,"+").replace(/_/g,"/"),r=atob(t),n=new Uint8Array(r.length);for(let e=0;e<r.length;e++)n[e]=r.charCodeAt(e);return new TextDecoder("utf-8").decode(n)})(s.request))}catch(e){throw new Error("mpp: invalid request auth-param (not valid base64url-encoded JSON)")}const a=i.methodDetails?.invoice;if(!a)throw new Error("mpp: missing invoice in charge request");const c=await o.payInvoice({invoice:a}),h=G(s,c.preimage);return n.set("Authorization",`Payment ${h}`),fetch(t,r)};async function X(e,t){const{createHmac:r}=await import("crypto");return r("sha256",e).update(t).digest("hex")}const Y=async e=>{const t="https://getalby.com/api/rates/"+e.toLowerCase()+".json",r=await fetch(t);if(!r.ok)throw new Error(`Failed to fetch rate: ${r.status} ${r.statusText}`);return(await r.json()).rate_float/1e8},Q=async({satoshi:e,currency:t})=>{const r=await Y(t);return Number(e)*r};e.DEFAULT_PROXY=O,e.Invoice=L,e.LN_ADDRESS_REGEX=B,e.LightningAddress=class{constructor(e,t){this.address=e,this.options={proxy:O},this.options=Object.assign(this.options,t),this.parse(),this.webln=this.options.webln}parse(){const e=B.exec(this.address.toLowerCase());e&&(this.username=e[1],this.domain=e[2])}getWebLN(){return this.webln||globalThis.webln}async fetch(){return this.options.proxy?this.fetchWithProxy():this.fetchWithoutProxy()}async fetchWithProxy(){const e=await fetch(`${this.options.proxy}/lightning-address-details?${new URLSearchParams({ln:this.address}).toString()}`);if(!e.ok)throw new Error(`Failed to fetch lnurl info: ${e.status} ${e.statusText}`);const t=await e.json();await this.parseLnUrlPayResponse(t.lnurlp),this.parseKeysendResponse(t.keysend),this.parseNostrResponse(t.nostr)}async fetchWithoutProxy(){this.domain&&this.username&&await Promise.all([this.fetchLnurlData(),this.fetchKeysendData(),this.fetchNostrData()])}async fetchLnurlData(){const e=await fetch(this.lnurlpUrl());if(e.ok){const t=await e.json();await this.parseLnUrlPayResponse(t)}}async fetchKeysendData(){const e=await fetch(this.keysendUrl());if(e.ok){const t=await e.json();this.parseKeysendResponse(t)}}async fetchNostrData(){const e=await fetch(this.nostrUrl());if(e.ok){const t=await e.json();this.parseNostrResponse(t)}}lnurlpUrl(){return`https://${this.domain}/.well-known/lnurlp/${this.username}`}keysendUrl(){return`https://${this.domain}/.well-known/keysend/${this.username}`}nostrUrl(){return`https://${this.domain}/.well-known/nostr.json?name=${this.username}`}async generateInvoice(e){let t;if(this.options.proxy){const r=await fetch(`${this.options.proxy}/generate-invoice?${new URLSearchParams({ln:this.address,...e}).toString()}`);if(!r.ok)throw new Error(`Failed to generate invoice: ${r.status} ${r.statusText}`);t=(await r.json()).invoice}else{if(!this.lnurlpData)throw new Error("No lnurlpData available. Please call fetch() first.");if(!this.lnurlpData.callback||!T(this.lnurlpData.callback))throw new Error("Valid callback does not exist in lnurlpData");const r=new URL(this.lnurlpData.callback);r.search=new URLSearchParams(e).toString();const n=await fetch(r.toString());if(!n.ok)throw new Error(`Failed to generate invoice: ${n.status} ${n.statusText}`);t=await n.json()}const r=t&&t.pr&&t.pr.toString();if(!r)throw new Error("Invalid pay service invoice");const n={pr:r};if(t&&t.verify&&(n.verify=t.verify.toString()),t&&t.successAction&&"object"==typeof t.successAction){const{tag:e,message:r,description:o,url:s}=t.successAction;"message"===e?n.successAction={tag:e,message:r}:"url"===e&&(n.successAction={tag:e,description:o,url:s})}return new L(n)}async requestInvoice(e){if(!this.lnurlpData)throw new Error("No lnurlpData available. Please call fetch() first.");const t=1e3*e.satoshi,{commentAllowed:r,min:n,max:o}=this.lnurlpData;if(!P({amount:t,min:n,max:o}))throw new Error("Invalid amount");if(e.comment&&r&&r>0&&e.comment.length>r)throw new Error(`The comment length must be ${r} characters or fewer`);const s={amount:t.toString()};return e.comment&&(s.comment=e.comment),e.payerdata&&(s.payerdata=JSON.stringify(e.payerdata)),this.generateInvoice(s)}async boost(e,t=0){if(!this.keysendData)throw new Error("No keysendData available. Please call fetch() first.");const{destination:r,customKey:n,customValue:o}=this.keysendData,s=this.getWebLN();if(!s)throw new Error("WebLN not available");return C({destination:r,customKey:n,customValue:o,amount:t,boost:e},{webln:s})}async zapInvoice({satoshi:e,comment:t,relays:r,e:n},o={}){if(!this.lnurlpData)throw new Error("No lnurlpData available. Please call fetch() first.");if(!this.nostrPubkey)throw new Error("Nostr Pubkey is missing");const s=this.nostrPubkey,i=1e3*e,{allowsNostr:a,min:c,max:h}=this.lnurlpData;if(!P({amount:i,min:c,max:h}))throw new Error("Invalid amount");if(!a)throw new Error("Your provider does not support zaps");const l=await N({satoshi:i,comment:t,p:s,e:n,relays:r},o),u={amount:i.toString(),nostr:JSON.stringify(l)};return await this.generateInvoice(u)}async zap(e,t={}){const r=this.zapInvoice(e,t),n=this.getWebLN();if(!n)throw new Error("WebLN not available");await n.enable();return n.sendPayment((await r).paymentRequest)}async parseLnUrlPayResponse(e){e&&(this.lnurlpData=await H(e))}parseKeysendResponse(e){e&&(this.keysendData=I(e))}parseNostrResponse(e){e&&([this.nostrData,this.nostrPubkey,this.nostrRelays]=D(e,this.username))}},e.createGuardedWallet=j,e.decodeInvoice=U,e.fetch402=async(e,t,r)=>{const n=r.maxAmount?j(r.wallet,r.maxAmount):r.wallet;t||(t={}),t.cache="no-store",t.mode="cors";const o=new Headers(t.headers??void 0);t.headers=o;const s=await fetch(e,t),i=s.headers.get("www-authenticate");if(i){const r=i.trimStart().toLowerCase();if(r.startsWith("l402")||r.startsWith("lsat"))return F(i,e,t,o,n)}if(i&&z(i))return Z(i,e,t,o,n);const a=s.headers.get("PAYMENT-REQUIRED");return a&&M(a)?V(a,e,t,o,n):s},e.fetchWithL402=async(e,t,r)=>{const n=r.wallet;if(!n)throw new Error("wallet is missing");t||(t={}),t.cache="no-store",t.mode="cors";const o=new Headers(t.headers??void 0);t.headers=o;const s=await fetch(e,t),i=s.headers.get("www-authenticate");return i?F(i,e,t,o,n):s},e.fetchWithMpp=async(e,t,r)=>{const n=r.wallet;if(!n)throw new Error("wallet is missing");t||(t={}),t.cache="no-store",t.mode="cors";const o=new Headers(t.headers??void 0);t.headers=o;const s=await fetch(e,t),i=s.headers.get("www-authenticate");return i&&i.trimStart().toLowerCase().startsWith("payment")?Z(i,e,t,o,n):s},e.fetchWithX402=async(e,t,r)=>{const n=r.wallet;t||(t={}),t.cache="no-store",t.mode="cors";const o=new Headers(t.headers??void 0);t.headers=o;const s=await fetch(e,t),i=s.headers.get("PAYMENT-REQUIRED");return i?V(i,e,t,o,n):s},e.findX402LightningRequirements=M,e.fromHexString=k,e.generateZapEvent=N,e.getEventHash=S,e.getFiatBtcRate=Y,e.getFiatCurrencies=async()=>{const e=await fetch("https://getalby.com/api/rates");if(!e.ok)throw new Error(`Failed to fetch currencies: ${e.status} ${e.statusText}`);const t=await e.json();return Object.entries(t).filter(([e])=>"BTC"!==e.toUpperCase()).map(([e,t])=>({code:e.toUpperCase(),name:t.name,priority:t.priority,symbol:t.symbol})).sort((e,t)=>e.name.localeCompare(t.name)).sort((e,t)=>e.priority-t.priority)},e.getFiatValue=Q,e.getFormattedFiatValue=async({satoshi:e,currency:t,locale:r})=>{r||(r="en");return(await Q({satoshi:e,currency:t})).toLocaleString(r,{style:"currency",currency:t})},e.getSatoshiValue=async({amount:e,currency:t})=>{const r=await Y(t);return Math.floor(Number(e)/r)},e.isUrl=T,e.isValidAmount=P,e.issueL402Macaroon=async function(e,t,r){if(void 0!==r&&Object.prototype.hasOwnProperty.call(r,"paymentHash"))throw new Error("paymentHash is reserved");const n={...r,paymentHash:t},o=Buffer.from(JSON.stringify(n)).toString("base64url");return`${o}.${await X(e,o)}`},e.makeL402AuthenticateHeader=e=>{if(!e.token)throw new Error("token must be provided");return`L402 version="0" token="${e.token}", invoice="${e.invoice}"`},e.parseKeysendResponse=I,e.parseL402=q,e.parseL402Authorization=function(e){const t=e.replace(/^LSAT /,"L402 "),r="L402 ";if(!t.startsWith(r))return null;const n=t.slice(5),o=n.indexOf(":");if(-1===o)throw new Error("Invalid authorization header value");return{token:n.slice(0,o),preimage:n.slice(o+1)}},e.parseLnUrlPayResponse=H,e.parseNostrResponse=D,e.sendBoostagram=C,e.serializeEvent=_,e.validateEvent=R,e.validatePreimage=$,e.verifyL402Macaroon=async function(e,t){const{timingSafeEqual:r}=await import("crypto"),n=t.lastIndexOf(".");if(-1===n)throw new Error("Invalid macaroon token");const o=t.slice(0,n),s=t.slice(n+1),i=await X(e,o);try{if(!r(Buffer.from(s,"hex"),Buffer.from(i,"hex")))throw new Error("Invalid macaroon token")}catch(e){throw new Error("Invalid macaroon token")}try{const e=JSON.parse(Buffer.from(o,"base64url").toString("utf8"));if(null===e||"object"!=typeof e||Array.isArray(e)||"string"!=typeof e.paymentHash)throw new Error("Invalid macaroon payload");return e}catch{throw new Error("Invalid macaroon token")}}});
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