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fix(wecom): fix media file/image receiving issues #17040

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fix(wecom): fix media file/image receiving issues #17040

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13 changes: 13 additions & 0 deletions gateway/platforms/wecom.py
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Original file line number Diff line number Diff line change
Expand Up @@ -480,6 +480,17 @@ async def _on_message(self, payload: Dict[str, Any]) -> None:
if not isinstance(body, dict):
return

# Debug: log full message structure for media debugging
import json
msgtype = str(body.get("msgtype") or "").lower()
if msgtype in ("image", "file", "mixed"):
logger.info(
"[%s] Received %s message, full body: %s",
self.name,
msgtype,
json.dumps(body, ensure_ascii=False, indent=2),
)

msg_id = str(body.get("msgid") or self._payload_req_id(payload) or uuid.uuid4().hex)
if self._dedup.is_duplicate(msg_id):
logger.debug("[%s] Duplicate message %s ignored", self.name, msg_id)
Expand Down Expand Up @@ -1010,6 +1021,8 @@ def _decrypt_file_bytes(encrypted_data: bytes, aes_key: str) -> bytes:
if not aes_key:
raise ValueError("aes_key is required")

# WeCom doesn't pad base64 keys; add padding if needed
aes_key = aes_key + '=' * ((4 - len(aes_key) % 4) % 4)
key = base64.b64decode(aes_key)
if len(key) != 32:
raise ValueError(f"Invalid WeCom AES key length: expected 32 bytes, got {len(key)}")
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1 change: 1 addition & 0 deletions tools/url_safety.py
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@
# to 198.18.0.0/15 behind local proxy/benchmark infrastructure.
_TRUSTED_PRIVATE_IP_HOSTS = frozenset({
"multimedia.nt.qq.com.cn",
"ww-aibot-img-1258476243.cos.ap-guangzhou.myqcloud.com",
})

# 100.64.0.0/10 (CGNAT / Shared Address Space, RFC 6598) is NOT covered by
Expand Down