83 lines
2.5 KiB
TypeScript
83 lines
2.5 KiB
TypeScript
/*
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* Copyright (C) 2026 Fluxer Contributors
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*
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* This file is part of Fluxer.
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*
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* Fluxer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Fluxer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
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*/
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import RuntimeConfigStore from '~/stores/RuntimeConfigStore';
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import * as RegexUtils from '~/utils/RegexUtils';
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const THEME_ID_REGEX = '[a-zA-Z0-9-]{2,32}';
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const normalizeEndpoint = (endpoint: string | null | undefined): string | null => {
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if (!endpoint) return null;
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const trimmed = endpoint.replace(/\/$/, '');
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return trimmed || null;
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};
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const buildThemePrefixes = (): Array<string> => {
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const prefixes = new Set<string>();
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const webApp = normalizeEndpoint(RuntimeConfigStore.webAppBaseUrl);
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if (webApp) {
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prefixes.add(`${webApp}/theme/`);
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}
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const marketingEndpoint = normalizeEndpoint(RuntimeConfigStore.marketingEndpoint);
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if (marketingEndpoint) {
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prefixes.add(`${marketingEndpoint}/theme/`);
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}
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return Array.from(prefixes);
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};
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const createThemeRegex = (): RegExp | null => {
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const prefixes = buildThemePrefixes();
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if (prefixes.length === 0) return null;
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const escapedPrefix = prefixes.map((prefix) => RegexUtils.escapeRegex(prefix)).join('|');
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return new RegExp(`(?:${escapedPrefix})(${THEME_ID_REGEX})(?![a-zA-Z0-9-])`, 'gi');
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};
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const matchThemes = (content: string | null, maxMatches = 1): Array<string> => {
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const regex = createThemeRegex();
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if (!regex || !content) return [];
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const codes: Array<string> = [];
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const seen = new Set<string>();
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regex.lastIndex = 0;
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let match: RegExpExecArray | null;
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while ((match = regex.exec(content)) !== null && codes.length < maxMatches) {
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const code = match[1];
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if (code && !seen.has(code)) {
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seen.add(code);
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codes.push(code);
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}
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}
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return codes;
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};
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export function findThemes(content: string | null): Array<string> {
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return matchThemes(content, 10);
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}
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export function findTheme(content: string | null): string | null {
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const matches = matchThemes(content, 1);
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return matches[0] ?? null;
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}
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