89 lines
3.7 KiB
TypeScript
89 lines
3.7 KiB
TypeScript
import {BBCodeCustomTag, BBCodeParser, BBCodeSimpleTag, BBCodeTextTag} from './parser';
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const urlFormat = '((?:https?|ftps?|irc)://[^\\s/$.?#"\']+\\.[^\\s"]+)';
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export const findUrlRegex = new RegExp(`(\\[url[=\\]]\\s*)?${urlFormat}`, 'gi');
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export const urlRegex = new RegExp(`^${urlFormat}$`);
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export type BBCodeElement = HTMLElement & {cleanup?(): void};
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function domain(url: string): string | undefined {
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const pieces = urlRegex.exec(url);
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if(pieces === null) return;
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const match = pieces[1].match(/(?:(https?|ftps?|irc):)?\/\/(?:www.)?([^\/]+)/);
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return match !== null ? match[2] : undefined;
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}
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function fixURL(url: string): string {
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if(/^www\./.test(url))
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url = `https://${url}`;
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return url.replace(/ /g, '%20');
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}
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export class CoreBBCodeParser extends BBCodeParser {
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/*tslint:disable-next-line:typedef*///https://github.com/palantir/tslint/issues/711
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constructor(public makeLinksClickable = true) {
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super();
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this.addTag(new BBCodeSimpleTag('b', 'strong'));
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this.addTag(new BBCodeSimpleTag('i', 'em'));
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this.addTag(new BBCodeSimpleTag('u', 'u'));
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this.addTag(new BBCodeSimpleTag('s', 'del'));
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this.addTag(new BBCodeSimpleTag('noparse', 'span', [], []));
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this.addTag(new BBCodeSimpleTag('sub', 'sub', [], ['b', 'i', 'u', 's', 'color']));
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this.addTag(new BBCodeSimpleTag('sup', 'sup', [], ['b', 'i', 'u', 's', 'color']));
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this.addTag(new BBCodeCustomTag('color', (parser, parent, param) => {
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const cregex = /^(red|blue|white|yellow|pink|gray|green|orange|purple|black|brown|cyan)$/;
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if(!cregex.test(param)) {
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parser.warning('Invalid color parameter provided.');
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return undefined;
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}
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const el = parser.createElement('span');
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el.className = `${param}Text`;
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parent.appendChild(el);
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return el;
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}));
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this.addTag(new BBCodeTextTag('url', (parser, parent, param, content) => {
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const element = parser.createElement('span');
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parent.appendChild(element);
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let url: string, display: string = content;
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if(param.length > 0) {
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url = param.trim();
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if(content.length === 0) display = param;
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} else if(content.length > 0) url = content;
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else {
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parser.warning('url tag contains no url.');
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element.textContent = '';
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return;
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}
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// This fixes problems where content based urls are marked as invalid if they contain spaces.
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url = fixURL(url);
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if(!urlRegex.test(url)) {
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element.textContent = `[BAD URL] ${url}`;
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return;
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}
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const fa = parser.createElement('i');
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fa.className = 'fa fa-link';
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element.appendChild(fa);
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const a = parser.createElement('a');
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a.href = url;
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a.rel = 'nofollow noreferrer noopener';
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a.target = '_blank';
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a.className = 'user-link';
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a.title = url;
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a.textContent = display;
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element.appendChild(a);
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const span = document.createElement('span');
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span.className = 'link-domain bbcode-pseudo';
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span.textContent = ` [${domain(url)}]`;
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element.appendChild(span);
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return element;
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}));
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}
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parseEverything(input: string): HTMLElement {
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if(this.makeLinksClickable && input.length > 0)
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input = input.replace(findUrlRegex, (match, tag) => tag === undefined ? `[url]${match}[/url]` : match);
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return super.parseEverything(input);
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}
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} |