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don't generate URL previews for blocked domains

This commit is contained in:
Hazelnoot 2024-11-18 10:41:31 -05:00
parent 4c6cec552e
commit 2a4c432f41
1 changed files with 14 additions and 0 deletions
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14
packages/backend/src/server/web/UrlPreviewService.ts
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@ -17,6 +17,7 @@ import { bindThis } from '@/decorators.js';
import { ApiError } from '@/server/api/error.js'; import { ApiError } from '@/server/api/error.js';
import { MiMeta } from '@/models/Meta.js'; import { MiMeta } from '@/models/Meta.js';
import { RedisKVCache } from '@/misc/cache.js'; import { RedisKVCache } from '@/misc/cache.js';
import { UtilityService } from '@/core/UtilityService.js';
import type { FastifyRequest, FastifyReply } from 'fastify'; import type { FastifyRequest, FastifyReply } from 'fastify';
@Injectable() @Injectable()
@ -36,6 +37,7 @@ export class UrlPreviewService {
private httpRequestService: HttpRequestService, private httpRequestService: HttpRequestService,
private loggerService: LoggerService, private loggerService: LoggerService,
private utilityService: UtilityService,
) { ) {
this.logger = this.loggerService.getLogger('url-preview'); this.logger = this.loggerService.getLogger('url-preview');
this.previewCache = new RedisKVCache<SummalyResult>(this.redisClient, 'summaly', { this.previewCache = new RedisKVCache<SummalyResult>(this.redisClient, 'summaly', {
@ -87,6 +89,18 @@ export class UrlPreviewService {
}; };
} }
const host = new URL(url).host;
if (this.utilityService.isBlockedHost(this.meta.blockedHosts, host)) {
reply.code(403);
return {
error: new ApiError({
message: 'URL is blocked',
code: 'URL_PREVIEW_BLOCKED',
id: '50294652-857b-4b13-9700-8e5c7a8deae8',
}),
};
}
const key = `${url}@${lang}`; const key = `${url}@${lang}`;
const cached = await this.previewCache.get(key); const cached = await this.previewCache.get(key);
if (cached !== undefined) { if (cached !== undefined) {