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thrower_daemon/node_modules/nostr-tools/lib/cjs/nip27.js
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229
thrower_daemon/node_modules/nostr-tools/lib/cjs/nip27.js
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"use strict";
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var __defProp = Object.defineProperty;
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var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
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var __getOwnPropNames = Object.getOwnPropertyNames;
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var __hasOwnProp = Object.prototype.hasOwnProperty;
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var __export = (target, all) => {
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for (var name in all)
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__defProp(target, name, { get: all[name], enumerable: true });
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};
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var __copyProps = (to, from, except, desc) => {
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if (from && typeof from === "object" || typeof from === "function") {
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for (let key of __getOwnPropNames(from))
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if (!__hasOwnProp.call(to, key) && key !== except)
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__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
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}
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return to;
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};
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
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// nip27.ts
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var nip27_exports = {};
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__export(nip27_exports, {
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parse: () => parse
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});
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module.exports = __toCommonJS(nip27_exports);
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// nip19.ts
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var import_utils2 = require("@noble/hashes/utils");
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var import_base = require("@scure/base");
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// utils.ts
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var import_utils = require("@noble/hashes/utils");
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var utf8Decoder = new TextDecoder("utf-8");
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var utf8Encoder = new TextEncoder();
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// nip19.ts
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var Bech32MaxSize = 5e3;
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function decode(code) {
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let { prefix, words } = import_base.bech32.decode(code, Bech32MaxSize);
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let data = new Uint8Array(import_base.bech32.fromWords(words));
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switch (prefix) {
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case "nprofile": {
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let tlv = parseTLV(data);
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if (!tlv[0]?.[0])
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throw new Error("missing TLV 0 for nprofile");
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if (tlv[0][0].length !== 32)
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throw new Error("TLV 0 should be 32 bytes");
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return {
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type: "nprofile",
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data: {
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pubkey: (0, import_utils2.bytesToHex)(tlv[0][0]),
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relays: tlv[1] ? tlv[1].map((d) => utf8Decoder.decode(d)) : []
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}
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};
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}
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case "nevent": {
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let tlv = parseTLV(data);
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if (!tlv[0]?.[0])
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throw new Error("missing TLV 0 for nevent");
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if (tlv[0][0].length !== 32)
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throw new Error("TLV 0 should be 32 bytes");
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if (tlv[2] && tlv[2][0].length !== 32)
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throw new Error("TLV 2 should be 32 bytes");
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if (tlv[3] && tlv[3][0].length !== 4)
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throw new Error("TLV 3 should be 4 bytes");
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return {
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type: "nevent",
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data: {
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id: (0, import_utils2.bytesToHex)(tlv[0][0]),
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relays: tlv[1] ? tlv[1].map((d) => utf8Decoder.decode(d)) : [],
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author: tlv[2]?.[0] ? (0, import_utils2.bytesToHex)(tlv[2][0]) : void 0,
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kind: tlv[3]?.[0] ? parseInt((0, import_utils2.bytesToHex)(tlv[3][0]), 16) : void 0
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}
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};
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}
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case "naddr": {
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let tlv = parseTLV(data);
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if (!tlv[0]?.[0])
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throw new Error("missing TLV 0 for naddr");
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if (!tlv[2]?.[0])
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throw new Error("missing TLV 2 for naddr");
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if (tlv[2][0].length !== 32)
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throw new Error("TLV 2 should be 32 bytes");
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if (!tlv[3]?.[0])
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throw new Error("missing TLV 3 for naddr");
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if (tlv[3][0].length !== 4)
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throw new Error("TLV 3 should be 4 bytes");
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return {
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type: "naddr",
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data: {
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identifier: utf8Decoder.decode(tlv[0][0]),
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pubkey: (0, import_utils2.bytesToHex)(tlv[2][0]),
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kind: parseInt((0, import_utils2.bytesToHex)(tlv[3][0]), 16),
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relays: tlv[1] ? tlv[1].map((d) => utf8Decoder.decode(d)) : []
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}
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};
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}
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case "nsec":
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return { type: prefix, data };
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case "npub":
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case "note":
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return { type: prefix, data: (0, import_utils2.bytesToHex)(data) };
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default:
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throw new Error(`unknown prefix ${prefix}`);
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}
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}
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function parseTLV(data) {
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let result = {};
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let rest = data;
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while (rest.length > 0) {
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let t = rest[0];
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let l = rest[1];
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let v = rest.slice(2, 2 + l);
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rest = rest.slice(2 + l);
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if (v.length < l)
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throw new Error(`not enough data to read on TLV ${t}`);
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result[t] = result[t] || [];
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result[t].push(v);
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}
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return result;
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}
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// nip27.ts
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var noCharacter = /\W/m;
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var noURLCharacter = /\W |\W$|$|,| /m;
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function* parse(content) {
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const max = content.length;
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let prevIndex = 0;
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let index = 0;
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while (index < max) {
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let u = content.indexOf(":", index);
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if (u === -1) {
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break;
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}
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if (content.substring(u - 5, u) === "nostr") {
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const m = content.substring(u + 60).match(noCharacter);
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const end = m ? u + 60 + m.index : max;
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try {
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let pointer;
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let { data, type } = decode(content.substring(u + 1, end));
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switch (type) {
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case "npub":
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pointer = { pubkey: data };
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break;
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case "nsec":
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case "note":
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index = end + 1;
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continue;
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default:
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pointer = data;
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}
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if (prevIndex !== u - 5) {
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yield { type: "text", text: content.substring(prevIndex, u - 5) };
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}
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yield { type: "reference", pointer };
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index = end;
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prevIndex = index;
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continue;
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} catch (_err) {
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index = u + 1;
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continue;
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}
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} else if (content.substring(u - 5, u) === "https" || content.substring(u - 4, u) === "http") {
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const m = content.substring(u + 4).match(noURLCharacter);
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const end = m ? u + 4 + m.index : max;
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const prefixLen = content[u - 1] === "s" ? 5 : 4;
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try {
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let url = new URL(content.substring(u - prefixLen, end));
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if (url.hostname.indexOf(".") === -1) {
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throw new Error("invalid url");
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}
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if (prevIndex !== u - prefixLen) {
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yield { type: "text", text: content.substring(prevIndex, u - prefixLen) };
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}
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if (/\.(png|jpe?g|gif|webp)$/i.test(url.pathname)) {
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yield { type: "image", url: url.toString() };
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index = end;
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prevIndex = index;
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continue;
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}
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if (/\.(mp4|avi|webm|mkv)$/i.test(url.pathname)) {
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yield { type: "video", url: url.toString() };
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index = end;
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prevIndex = index;
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continue;
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}
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if (/\.(mp3|aac|ogg|opus)$/i.test(url.pathname)) {
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yield { type: "audio", url: url.toString() };
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index = end;
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prevIndex = index;
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continue;
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}
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yield { type: "url", url: url.toString() };
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index = end;
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prevIndex = index;
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continue;
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} catch (_err) {
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index = end + 1;
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continue;
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}
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} else if (content.substring(u - 3, u) === "wss" || content.substring(u - 2, u) === "ws") {
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const m = content.substring(u + 4).match(noURLCharacter);
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const end = m ? u + 4 + m.index : max;
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const prefixLen = content[u - 1] === "s" ? 3 : 2;
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try {
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let url = new URL(content.substring(u - prefixLen, end));
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if (url.hostname.indexOf(".") === -1) {
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throw new Error("invalid ws url");
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}
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if (prevIndex !== u - prefixLen) {
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yield { type: "text", text: content.substring(prevIndex, u - prefixLen) };
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}
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yield { type: "relay", url: url.toString() };
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index = end;
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prevIndex = index;
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continue;
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} catch (_err) {
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index = end + 1;
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continue;
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}
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} else {
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index = u + 1;
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continue;
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}
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}
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if (prevIndex !== max) {
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yield { type: "text", text: content.substring(prevIndex) };
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}
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}
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