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Diffstat (limited to 'packages/backend/src/server')
| -rw-r--r-- | packages/backend/src/server/FileServerService.ts | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/packages/backend/src/server/FileServerService.ts b/packages/backend/src/server/FileServerService.ts index 19f082c61c..1a4d0cb48f 100644 --- a/packages/backend/src/server/FileServerService.ts +++ b/packages/backend/src/server/FileServerService.ts @@ -317,6 +317,12 @@ export class FileServerService { ); } + if (!request.headers['user-agent']) { + throw new StatusError('User-Agent is required', 400, 'User-Agent is required'); + } else if (request.headers['user-agent'].toLowerCase().indexOf('misskey/') !== -1) { + throw new StatusError('Refusing to proxy a request from another proxy', 403, 'Proxy is recursive'); + } + // Create temp file const file = await this.getStreamAndTypeFromUrl(url); if (file === '404') { |