173 lines
5.9 KiB
JavaScript
173 lines
5.9 KiB
JavaScript
import { Link } from "react-router-dom";
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import ReactMarkdown from "react-markdown";
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import { TwitterTweetEmbed } from "react-twitter-embed";
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import { UrlRegex, FileExtensionRegex, MentionRegex, InvoiceRegex, YoutubeUrlRegex, TweetUrlRegex, HashtagRegex } from "../Const";
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import { eventLink, hexToBech32, profileLink } from "../Util";
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import Invoice from "./Invoice";
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import LazyImage from "./LazyImage";
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import Hashtag from "./Hashtag";
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import './Text.css'
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function transformHttpLink(a) {
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try {
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const url = new URL(a);
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const youtubeId = YoutubeUrlRegex.test(a) && RegExp.$1;
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const tweetId = TweetUrlRegex.test(a) && RegExp.$2;
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const extension = FileExtensionRegex.test(url.pathname.toLowerCase()) && RegExp.$1;
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if (extension) {
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switch (extension) {
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case "gif":
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case "jpg":
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case "jpeg":
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case "png":
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case "bmp":
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case "webp": {
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return <LazyImage key={url} src={url} />;
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}
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case "mp4":
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case "mov":
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case "mkv":
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case "avi":
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case "m4v": {
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return <video key={url} src={url} controls />
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}
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default:
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return <a key={url} href={url} onClick={(e) => e.stopPropagation()}>{url.toString()}</a>
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}
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} else if (tweetId) {
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return (
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<div className="tweet" key={tweetId}>
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<TwitterTweetEmbed tweetId={tweetId} />
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</div>
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)
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} else if (youtubeId) {
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return (
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<>
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<br />
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<iframe
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className="w-max"
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src={`https://www.youtube.com/embed/${youtubeId}`}
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title="YouTube video player"
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key={youtubeId}
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frameBorder="0"
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allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
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allowFullScreen=""
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/>
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<br />
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</>
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)
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} else {
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return <a href={a} onClick={(e) => e.stopPropagation()}>{a}</a>
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}
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} catch (error) {
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}
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return <a href={a} onClick={(e) => e.stopPropagation()}>{a}</a>
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}
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function extractLinks(fragments) {
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return fragments.map(f => {
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if (typeof f === "string") {
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return f.split(UrlRegex).map(a => {
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if (a.startsWith("http")) {
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return transformHttpLink(a)
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}
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return a;
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});
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}
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return f;
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}).flat();
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}
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export function extractMentions(fragments, tags, users) {
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return fragments.map(f => {
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if (typeof f === "string") {
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return f.split(MentionRegex).map((match) => {
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let matchTag = match.match(/#\[(\d+)\]/);
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if (matchTag && matchTag.length === 2) {
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let idx = parseInt(matchTag[1]);
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let ref = tags?.find(a => a.Index === idx);
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if (ref) {
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switch (ref.Key) {
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case "p": {
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let pUser = users[ref.PubKey]?.name ?? hexToBech32("npub", ref.PubKey).substring(0, 12);
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return <Link key={ref.PubKey} to={profileLink(ref.PubKey)} onClick={(e) => e.stopPropagation()}>@{pUser}</Link>;
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}
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case "e": {
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let eText = hexToBech32("note", ref.Event).substring(0, 12);
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return <Link key={ref.Event} to={eventLink(ref.Event)} onClick={(e) => e.stopPropagation()}>#{eText}</Link>;
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}
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}
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}
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return <b style={{ color: "var(--error)" }}>{matchTag[0]}?</b>;
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} else {
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return match;
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}
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});
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}
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return f;
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}).flat();
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}
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function extractInvoices(fragments) {
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return fragments.map(f => {
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if (typeof f === "string") {
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return f.split(InvoiceRegex).map(i => {
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if (i.toLowerCase().startsWith("lnbc")) {
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return <Invoice key={i} invoice={i} />
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} else {
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return i;
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}
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});
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}
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return f;
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}).flat();
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}
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function extractHashtags(fragments) {
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return fragments.map(f => {
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if (typeof f === "string") {
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return f.split(HashtagRegex).map(i => {
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if (i.toLowerCase().startsWith("#")) {
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return <Hashtag>{i}</Hashtag>
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} else {
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return i;
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}
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});
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}
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return f;
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}).flat();
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}
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function transformLi({ body, tags, users }) {
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let fragments = transformText({ body, tags, users })
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return <li>{fragments}</li>
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}
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function transformParagraph({ body, tags, users }) {
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const fragments = transformText({ body, tags, users })
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if (fragments.every(f => typeof f === 'string')) {
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return <p>{fragments}</p>
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}
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return <>{fragments}</>
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}
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function transformText({ body, tags, users }) {
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let fragments = extractMentions(body, tags, users);
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fragments = extractLinks(fragments);
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fragments = extractInvoices(fragments);
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fragments = extractHashtags(fragments);
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return fragments;
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}
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export default function Text({ content, tags, users }) {
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const components = {
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p: (props) => transformParagraph({ body: props.children, tags, users }),
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a: (props) => transformHttpLink(props.href),
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li: (props) => transformLi({ body: props.children, tags, users }),
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}
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return <ReactMarkdown className="text" components={components}>{content}</ReactMarkdown>
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}
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