hermes-agent/gateway/platforms
sgaofen 93ea9b04af fix(gateway): cap inbound media download size to prevent memory exhaustion
Inbound image/audio/video payloads were buffered fully into process memory
before being written to the cache, with no size limit. A large upload
(Discord Nitro allows 500 MB) or a remote media URL in an inbound message
pointing at a huge file could spike RAM and OOM-kill the gateway.

Enforce a configurable cap in the shared cache helpers (gateway/platforms/
base.py) so the protection holds across every platform adapter, not one:

- cache_image/audio/video_from_bytes reject oversized payloads before writing
  (video was the gap in the original report — now covered).
- cache_image/audio_from_url stream the body, rejecting on an oversized
  Content-Length header and re-checking the running total per chunk so an
  absent/lying header can't smuggle an unbounded body past the cap.
- Discord's _read_attachment_bytes checks att.size up front, so an oversized
  attachment is rejected before any bytes are pulled into memory.

Configurable via gateway.max_inbound_media_bytes in config.yaml (default
128 MiB; 0 disables). No new env var — non-secret config lives in config.yaml.

Salvaged and extended from @sgaofen's PR #13341 (the original report and the
shared-helper approach). Reapplied onto current main (Discord adapter has
since moved to plugins/platforms/discord/), the configurable knob moved from
an env var to config.yaml, and the video cache helper added.

Co-authored-by: Hermes Agent <noreply@nousresearch.com>
2026-06-21 11:56:46 -07:00
..
qqbot fix(qqbot): stop 100% CPU spin when WebSocket is closed but not None (#31193, #31771) (#40574) 2026-06-06 18:44:44 -07:00
__init__.py perf(gateway): defer QQAdapter and YuanbaoAdapter imports via PEP 562 (#22790) 2026-05-09 13:17:48 -07:00
_http_client_limits.py fix(gateway): tighten httpx keepalive and close whatsapp typing-response leak (#18451) 2026-05-02 02:23:37 -07:00
ADDING_A_PLATFORM.md feat(whatsapp): add WhatsApp Business Cloud API adapter 2026-05-23 01:07:01 -04:00
api_server.py feat(api-server): configurable concurrent-run cap to prevent DoS (#50007) 2026-06-21 07:26:03 -07:00
base.py fix(gateway): cap inbound media download size to prevent memory exhaustion 2026-06-21 11:56:46 -07:00
bluebubbles.py refactor(bluebubbles): simplify mention-gating helpers 2026-06-01 18:52:05 -07:00
helpers.py fix(gateway): preserve underscores in plain-text identifiers 2026-05-16 23:11:43 -07:00
msgraph_webhook.py fix(security): require source CIDR allowlisting for public msgraph webhook binds 2026-05-28 01:26:18 -07:00
signal.py fix(signal): FIFO-evict the quote-detection timestamp cache 2026-06-20 21:00:46 +05:30
signal_format.py fix(signal): share markdown formatting across send paths 2026-06-20 13:47:14 +05:30
signal_rate_limit.py feat(gateway/signal): add support for multiple images sending 2026-04-30 04:28:08 -07:00
webhook.py feat(gateway): multiplex phase 1 — HTTP-inbound /p/<profile>/ routing (webhook) 2026-06-19 07:34:15 -07:00
weixin.py fix(weixin): add rate-limit circuit breaker 2026-06-07 22:10:17 -07:00
whatsapp_cloud.py fix(whatsapp-cloud): review follow-ups for #43921 2026-06-11 07:51:01 -07:00
whatsapp_common.py fix(whatsapp): resolve bridge dir with HERMES_HOME mirror in Docker 2026-06-20 17:05:27 -07:00
yuanbao.py feat(Yuanbao): support wechat forward msg (#43508) 2026-06-12 02:06:47 -07:00
yuanbao_media.py chore: ruff auto-fix PLR6201 — tuple → set in membership tests (#23937) 2026-05-11 11:13:25 -07:00
yuanbao_proto.py feat(Yuanbao): support wechat forward msg (#43508) 2026-06-12 02:06:47 -07:00
yuanbao_sticker.py yuanbao platform (#16298) 2026-04-26 18:50:49 -07:00