61 lines
1.9 KiB
TypeScript
61 lines
1.9 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 {Config} from '@fluxer/api/src/Config';
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import {Logger} from '@fluxer/api/src/Logger';
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import type {HonoEnv} from '@fluxer/api/src/types/HonoEnv';
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import {stripApiPrefix} from '@fluxer/api/src/utils/RequestPathUtils';
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import {createMiddleware} from 'hono/factory';
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import {HTTPException} from 'hono/http-exception';
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interface RequireXForwardedForOptions {
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exemptPaths?: Array<string>;
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}
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const defaultExemptPaths: Array<string> = [
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'/_health',
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'/webhooks/livekit',
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'/test',
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'/connections/bluesky/client-metadata.json',
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'/connections/bluesky/jwks.json',
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];
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export function RequireXForwardedForMiddleware({exemptPaths = defaultExemptPaths}: RequireXForwardedForOptions = {}) {
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return createMiddleware<HonoEnv>(async (ctx, next) => {
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if (Config.dev.testModeEnabled) {
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await next();
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return;
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}
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const path = stripApiPrefix(ctx.req.path);
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if (exemptPaths.some((prefix) => path === prefix || path.startsWith(prefix))) {
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await next();
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return;
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}
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const headerValue = ctx.req.header('x-forwarded-for');
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if (!headerValue || headerValue.trim() === '') {
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Logger.warn({path}, 'Rejected request without X-Forwarded-For header');
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throw new HTTPException(403, {message: 'Forbidden'});
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}
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await next();
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});
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}
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