107 lines
3.2 KiB
JavaScript
107 lines
3.2 KiB
JavaScript
import {rawEmojis} from "./emojis";
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export const topicUrl = (baseUrl, topic) => `${baseUrl}/${topic}`;
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export const topicUrlWs = (baseUrl, topic) => `${topicUrl(baseUrl, topic)}/ws`
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.replaceAll("https://", "wss://")
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.replaceAll("http://", "ws://");
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export const topicUrlJson = (baseUrl, topic) => `${topicUrl(baseUrl, topic)}/json`;
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export const topicUrlJsonPoll = (baseUrl, topic) => `${topicUrlJson(baseUrl, topic)}?poll=1`;
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export const topicUrlAuth = (baseUrl, topic) => `${topicUrl(baseUrl, topic)}/auth`;
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export const topicShortUrl = (baseUrl, topic) => shortUrl(topicUrl(baseUrl, topic));
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export const shortUrl = (url) => url.replaceAll(/https?:\/\//g, "");
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// Format emojis (see emoji.js)
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const emojis = {};
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rawEmojis.forEach(emoji => {
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emoji.aliases.forEach(alias => {
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emojis[alias] = emoji.emoji;
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});
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});
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const toEmojis = (tags) => {
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if (!tags) return [];
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else return tags.filter(tag => tag in emojis).map(tag => emojis[tag]);
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}
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export const formatTitle = (m) => {
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const emojiList = toEmojis(m.tags);
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if (emojiList.length > 0) {
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return `${emojiList.join(" ")} ${m.title}`;
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} else {
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return m.title;
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}
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};
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export const formatMessage = (m) => {
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if (m.title) {
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return m.message;
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} else {
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const emojiList = toEmojis(m.tags);
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if (emojiList.length > 0) {
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return `${emojiList.join(" ")} ${m.message}`;
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} else {
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return m.message;
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}
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}
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};
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export const unmatchedTags = (tags) => {
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if (!tags) return [];
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else return tags.filter(tag => !(tag in emojis));
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}
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export const maybeWithBasicAuth = (headers, user) => {
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if (user) {
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headers['Authorization'] = `Basic ${encodeBase64(`${user.username}:${user.password}`)}`;
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}
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return headers;
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}
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export const basicAuth = (username, password) => {
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return `Basic ${encodeBase64(`${username}:${password}`)}`;
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}
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export const encodeBase64 = (s) => {
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return new Buffer(s).toString('base64');
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}
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export const encodeBase64Url = (s) => {
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return encodeBase64(s)
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.replaceAll('+', '-')
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.replaceAll('/', '_')
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.replaceAll('=', '');
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}
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// From: https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch
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export async function* fetchLinesIterator(fileURL, headers) {
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const utf8Decoder = new TextDecoder('utf-8');
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const response = await fetch(fileURL, {
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headers: headers
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});
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const reader = response.body.getReader();
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let { value: chunk, done: readerDone } = await reader.read();
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chunk = chunk ? utf8Decoder.decode(chunk) : '';
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const re = /\n|\r|\r\n/gm;
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let startIndex = 0;
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for (;;) {
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let result = re.exec(chunk);
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if (!result) {
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if (readerDone) {
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break;
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}
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let remainder = chunk.substr(startIndex);
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({ value: chunk, done: readerDone } = await reader.read());
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chunk = remainder + (chunk ? utf8Decoder.decode(chunk) : '');
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startIndex = re.lastIndex = 0;
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continue;
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}
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yield chunk.substring(startIndex, result.index);
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startIndex = re.lastIndex;
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}
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if (startIndex < chunk.length) {
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yield chunk.substr(startIndex); // last line didn't end in a newline char
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}
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}
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