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Fix WhatsApp long message splitting

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Hedirman 2026-05-04 06:54:18 +08:00 • committed by Teknium
parent 4d32f40306
commit a9ebee5f02
3 changed files with 122 additions and 18 deletions
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22
gateway/platforms/whatsapp.py
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@ -217,6 +217,7 @@ class WhatsAppAdapter(BasePlatformAdapter):
# WhatsApp message limits — practical UX limit, not protocol max.
# WhatsApp allows ~65K but long messages are unreadable on mobile.
MAX_MESSAGE_LENGTH = 4096
DEFAULT_REPLY_PREFIX = "⚕ *Hermes Agent*\n────────────\n"
# Default bridge location relative to the hermes-agent install
_DEFAULT_BRIDGE_DIR = Path(__file__).resolve().parents[2] / "scripts" / "whatsapp-bridge"
@ -252,6 +253,25 @@ class WhatsAppAdapter(BasePlatformAdapter):
# notification before the normal "✓ whatsapp disconnected" fires.
self._shutting_down: bool = False
def _effective_reply_prefix(self) -> str:
"""Return the prefix the Node bridge will add in self-chat mode."""
whatsapp_mode = os.getenv("WHATSAPP_MODE", "self-chat")
if whatsapp_mode != "self-chat":
return ""
if self._reply_prefix is not None:
return self._reply_prefix.replace("\\n", "\n")
env_prefix = os.getenv("WHATSAPP_REPLY_PREFIX")
if env_prefix is not None:
return env_prefix.replace("\\n", "\n")
return self.DEFAULT_REPLY_PREFIX
def _outgoing_chunk_limit(self) -> int:
"""Reserve room for the bridge-side prefix so final WhatsApp text fits."""
prefix_len = len(self._effective_reply_prefix())
# Keep enough space for truncate_message's pagination indicator and
# code-fence repair even if a user configures a very long prefix.
return max(1024, self.MAX_MESSAGE_LENGTH - prefix_len)
def _whatsapp_require_mention(self) -> bool:
configured = self.config.extra.get("require_mention")
if configured is not None:
@ -780,7 +800,7 @@ class WhatsAppAdapter(BasePlatformAdapter):
# Format and chunk the message
formatted = self.format_message(content)
chunks = self.truncate_message(formatted, self.MAX_MESSAGE_LENGTH)
chunks = self.truncate_message(formatted, self._outgoing_chunk_limit())
last_message_id = None
for chunk in chunks: