980 lines
48 KiB
Python
980 lines
48 KiB
Python
"""LINE Messaging API adapter: aiohttp webhook (signature-verified) → BasePlatformAdapter.
|
||
|
||
* Reply token preferred (free, single-use, ~60s TTL), metered Push as fallback.
|
||
* Slow-LLM postback button past ``slow_response_threshold`` (45s; 0 disables): the reply
|
||
token is burned on a Template Buttons bubble; the tap yields a fresh free token that
|
||
delivers the cached answer (PENDING → READY → DELIVERED, ERROR on cancel).
|
||
* Three allowlists (users U…, groups C…, rooms R…); ``LINE_ALLOW_ALL_USERS`` is dev-only.
|
||
* Media via public HTTPS only: local files served under ``/line/media/<token>/<name>``
|
||
(allowed-roots guard); ``LINE_PUBLIC_URL`` overrides host:port behind tunnels/wildcards.
|
||
* ≤5 message objects per call; text chunked at 4500 chars (bubble hard limit 5000).
|
||
"""
|
||
|
||
from __future__ import annotations
|
||
|
||
import asyncio
|
||
import base64
|
||
import contextlib
|
||
import enum
|
||
import hashlib
|
||
import hmac
|
||
import json
|
||
import logging
|
||
import mimetypes
|
||
import os
|
||
import re
|
||
import secrets
|
||
import sys
|
||
import tempfile
|
||
import time
|
||
import uuid
|
||
from dataclasses import dataclass, field
|
||
from pathlib import Path
|
||
from typing import Any, Callable, Dict, List, Optional, Set, Tuple
|
||
from urllib.parse import quote as _urlquote
|
||
|
||
from gateway.platforms._shared import get_scoped_secret as _get_scoped_secret
|
||
from gateway.platforms.base import (
|
||
gateway_trust_env, BasePlatformAdapter, MessageEvent, MessageType, SendResult,
|
||
cache_audio_from_bytes, cache_document_from_bytes, cache_image_from_bytes, cache_video_from_bytes,
|
||
)
|
||
from gateway.config import Platform
|
||
|
||
logger = logging.getLogger(__name__)
|
||
|
||
LINE_REPLY_URL = "https://api.line.me/v2/bot/message/reply"
|
||
LINE_PUSH_URL = "https://api.line.me/v2/bot/message/push"
|
||
LINE_LOADING_URL = "https://api.line.me/v2/bot/chat/loading/start"
|
||
LINE_CONTENT_URL_FMT = "https://api-data.line.me/v2/bot/message/{message_id}/content"
|
||
LINE_BOT_INFO_URL = "https://api.line.me/v2/bot/info"
|
||
LINE_PER_BUBBLE_CHARS = 5000 # LINE hard limit
|
||
LINE_SAFE_BUBBLE_CHARS = 4500 # conservative chunking limit
|
||
LINE_MAX_MESSAGES_PER_CALL = 5
|
||
LINE_REPLY_TOKEN_TTL_SECONDS = 50 # below LINE's ~60s
|
||
WEBHOOK_BODY_MAX_BYTES = 1_048_576 # 1 MiB — webhooks are tiny JSON
|
||
DEFAULT_WEBHOOK_PORT = 8646
|
||
DEFAULT_WEBHOOK_PATH = "/line/webhook"
|
||
DEFAULT_MEDIA_PATH_PREFIX = "/line/media"
|
||
# ``None`` → asyncio binds BOTH address families (mirrors gateway/platforms/webhook.py).
|
||
# "0.0.0.0" is unreachable on IPv6-only networks (Fly.io 6PN → 502s); "::" breaks IPv4
|
||
# loopback probes on IPV6_V6ONLY=1 hosts. Pin via ``LINE_HOST`` / ``extra.host``.
|
||
DEFAULT_HOST = None
|
||
_WILDCARD_HOSTS = frozenset({"0.0.0.0", "::", ""}) # LINE can't fetch media from these → public URL required
|
||
DEFAULT_SLOW_RESPONSE_THRESHOLD = 45.0 # seconds; 0 disables the postback button
|
||
DEFAULT_PENDING_REPLY_TEXT = "🤔 Still thinking. Tap below to fetch the answer when it's ready."
|
||
DEFAULT_BUTTON_LABEL = "Get answer"
|
||
DEFAULT_DELIVERED_TEXT = "Already replied ✅"
|
||
DEFAULT_INTERRUPTED_TEXT = "Run was interrupted before completion."
|
||
MEDIA_TOKEN_TTL_SECONDS = 1800 # 30 minutes; LINE caches the URL aggressively
|
||
LINE_IMAGE_MAX_BYTES = 10 * 1024 * 1024 # 10 MB per LINE docs
|
||
LINE_AV_MAX_BYTES = 200 * 1024 * 1024 # 200 MB for voice/video
|
||
# LINE message type → normalized MessageType. LINE audio is recorded voice clips →
|
||
# VOICE (STT path), like Telegram/WhatsApp. Unknown types fall back to TEXT.
|
||
_LINE_MESSAGE_TYPES = {
|
||
"text": MessageType.TEXT, "image": MessageType.PHOTO, "video": MessageType.VIDEO, "audio": MessageType.VOICE,
|
||
"file": MessageType.DOCUMENT, "location": MessageType.LOCATION, "sticker": MessageType.STICKER}
|
||
# 1×1 transparent PNG: fallback video preview (LINE requires ``previewImageUrl``).
|
||
_FALLBACK_PNG_PREVIEW = bytes.fromhex(
|
||
"89504e470d0a1a0a0000000d49484452000000010000000108060000001f15c4"
|
||
"890000000d49444154789c63000100000005000100377a7ff20000000049454e"
|
||
"44ae426082")
|
||
# Markdown LINE can't render, applied in order (code blocks first so their content survives).
|
||
_MD_STRIP_RULES: Tuple[Tuple[re.Pattern, Any], ...] = (
|
||
(re.compile(r"```[a-zA-Z0-9_+-]*\n?(.*?)```", re.DOTALL), lambda m: m.group(1).rstrip("\n")),
|
||
(re.compile(r"`([^`]+)`"), r"\1"),
|
||
(re.compile(r"\[([^\]]+)\]\((https?://[^\s)]+)\)"), lambda m: f"{m.group(1)} ({m.group(2)})"),
|
||
(re.compile(r"\*\*(.+?)\*\*"), r"\1"),
|
||
(re.compile(r"(?<!\*)\*(?!\s)(.+?)(?<!\s)\*(?!\*)"), r"\1"),
|
||
(re.compile(r"^#{1,6}\s+", re.MULTILINE), ""),
|
||
(re.compile(r"^[\s]*[-*+]\s+", re.MULTILINE), "• "))
|
||
|
||
|
||
def strip_markdown_preserving_urls(text: str) -> str:
|
||
"""Strip Markdown LINE can't render; ``[label](url)`` → ``label (url)`` keeps URLs
|
||
tappable (LINE auto-links bare URLs only). Code-block content is kept."""
|
||
if not text:
|
||
return text
|
||
for pattern, repl in _MD_STRIP_RULES:
|
||
text = pattern.sub(repl, text)
|
||
return text
|
||
|
||
|
||
def split_for_line(text: str, max_chars: int = LINE_SAFE_BUBBLE_CHARS) -> List[str]:
|
||
"""Split into ≤5 LINE bubbles at paragraph/line/word breaks; overflow is ellipsised."""
|
||
if not text or len(text) <= max_chars:
|
||
return [text] if text else []
|
||
chunks: List[str] = []
|
||
remaining = text
|
||
while remaining and len(chunks) < LINE_MAX_MESSAGES_PER_CALL:
|
||
if len(remaining) <= max_chars:
|
||
chunks.append(remaining)
|
||
remaining = ""
|
||
break
|
||
for sep in ("\n\n", "\n", " "): # prefer paragraph, then line, then word breaks
|
||
cut = remaining.rfind(sep, 0, max_chars)
|
||
if cut >= int(max_chars * 0.5):
|
||
break
|
||
if cut <= 0:
|
||
cut = max_chars
|
||
chunks.append(remaining[:cut].rstrip())
|
||
remaining = remaining[cut:].lstrip()
|
||
if remaining: # budget exhausted → ellipsis on the last bubble
|
||
tail = chunks[-1]
|
||
if len(tail) > max_chars - 1:
|
||
tail = tail[: max_chars - 1]
|
||
chunks[-1] = tail.rstrip() + "…"
|
||
return chunks
|
||
|
||
|
||
def verify_line_signature(body: bytes, signature: str, channel_secret: str) -> bool:
|
||
"""Verify ``X-Line-Signature``: base64(HMAC-SHA256(secret, raw body)), constant-time."""
|
||
if not signature or not channel_secret or body is None:
|
||
return False
|
||
try:
|
||
digest = hmac.new(channel_secret.encode("utf-8"), body, hashlib.sha256).digest()
|
||
expected = base64.b64encode(digest).decode("utf-8")
|
||
except Exception:
|
||
return False
|
||
# Bytes: compare_digest raises TypeError on non-ASCII str, and the header is raw.
|
||
return hmac.compare_digest(expected.encode(), signature.encode())
|
||
|
||
|
||
class State(enum.Enum):
|
||
"""Slow-LLM postback cache states."""
|
||
|
||
PENDING = "pending" # button sent, LLM still running
|
||
READY = "ready" # response cached, waiting for postback tap
|
||
DELIVERED = "delivered"
|
||
ERROR = "error" # LLM raised / interrupted; error text cached
|
||
|
||
|
||
@dataclass
|
||
class _CacheEntry:
|
||
state: State
|
||
payload: Any = None
|
||
chat_id: str = ""
|
||
created_at: float = field(default_factory=time.time)
|
||
updated_at: float = field(default_factory=time.time)
|
||
|
||
|
||
_KEEP = object() # sentinel: leave entry.payload untouched
|
||
|
||
|
||
class RequestCache:
|
||
"""In-memory cache for slow-LLM postback retrieval (PENDING → READY|ERROR → DELIVERED)."""
|
||
|
||
def __init__(self) -> None:
|
||
self._entries: Dict[str, _CacheEntry] = {}
|
||
|
||
def register_pending(self, chat_id: str) -> str:
|
||
rid = str(uuid.uuid4())
|
||
self._entries[rid] = _CacheEntry(state=State.PENDING, chat_id=chat_id)
|
||
return rid
|
||
|
||
def get(self, request_id: str) -> Optional[_CacheEntry]:
|
||
return self._entries.get(request_id)
|
||
|
||
def _transition(self, request_id: str, allowed: Set[State], state: State, payload: Any = _KEEP) -> None:
|
||
entry = self._entries.get(request_id)
|
||
if entry is None or entry.state not in allowed:
|
||
return
|
||
entry.state = state
|
||
if payload is not _KEEP:
|
||
entry.payload = payload
|
||
entry.updated_at = time.time()
|
||
|
||
def set_ready(self, request_id: str, payload: Any) -> None:
|
||
self._transition(request_id, {State.PENDING}, State.READY, payload)
|
||
|
||
def set_error(self, request_id: str, message: str) -> None:
|
||
self._transition(request_id, {State.PENDING}, State.ERROR, message)
|
||
|
||
def mark_delivered(self, request_id: str) -> None:
|
||
self._transition(request_id, {State.READY, State.ERROR}, State.DELIVERED)
|
||
|
||
|
||
class _MessageDeduplicator:
|
||
"""Bounded LRU of LINE webhook event IDs to ignore at-least-once retries."""
|
||
|
||
def __init__(self, max_size: int = 1000) -> None:
|
||
self._seen: Dict[str, float] = {}
|
||
self._max = max_size
|
||
|
||
def is_duplicate(self, event_id: str) -> bool:
|
||
if not event_id:
|
||
return False
|
||
if event_id in self._seen:
|
||
return True
|
||
if len(self._seen) >= self._max: # drop the oldest 10% so we don't trim every insert
|
||
cutoff = sorted(self._seen.values())[len(self._seen) // 10 or 1]
|
||
self._seen = {k: v for k, v in self._seen.items() if v > cutoff}
|
||
self._seen[event_id] = time.time()
|
||
return False
|
||
|
||
|
||
# LINE source type → (id key, normalized chat_type)
|
||
_SOURCE_KINDS = {"group": ("groupId", "group"), "room": ("roomId", "room"), "user": ("userId", "dm")}
|
||
|
||
|
||
def _resolve_chat(source: Dict[str, Any]) -> Tuple[str, str]:
|
||
"""Return ``(chat_id, chat_type)`` from a LINE event ``source`` block (user/group/room)."""
|
||
kind = _SOURCE_KINDS.get((source or {}).get("type", ""))
|
||
return ("", "dm") if kind is None else (source.get(kind[0], ""), kind[1])
|
||
|
||
|
||
def _allowed_for_source(
|
||
source: Dict[str, Any], *, allow_all: bool, user_ids: Set[str], group_ids: Set[str], room_ids: Set[str],
|
||
) -> bool:
|
||
"""Three-list gate: users, groups, rooms."""
|
||
if allow_all:
|
||
return True
|
||
sid, chat_type = _resolve_chat(source)
|
||
return bool(sid) and sid in {"dm": user_ids, "group": group_ids, "room": room_ids}[chat_type]
|
||
|
||
|
||
class _LineClient:
|
||
"""Thin aiohttp wrapper around the LINE Messaging API (no ``line-bot-sdk`` dependency)."""
|
||
|
||
def __init__(self, channel_access_token: str, *, timeout: float = 15.0) -> None:
|
||
self._token = channel_access_token
|
||
self._timeout = timeout
|
||
self._headers = {"Authorization": f"Bearer {channel_access_token}", "Content-Type": "application/json"}
|
||
|
||
@staticmethod
|
||
def _session(timeout: float):
|
||
import aiohttp
|
||
return aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=timeout), trust_env=gateway_trust_env())
|
||
|
||
async def _post_messages(self, url: str, label: str, payload: Dict[str, Any]) -> None:
|
||
async with self._session(self._timeout) as session:
|
||
async with session.post(url, headers=self._headers, json=payload) as resp:
|
||
if resp.status >= 400:
|
||
body = await resp.text()
|
||
raise RuntimeError(f"LINE {label} {resp.status}: {body[:200]}")
|
||
|
||
async def reply(self, reply_token: str, messages: List[Dict[str, Any]]) -> None:
|
||
await self._post_messages(LINE_REPLY_URL, "reply", {"replyToken": reply_token, "messages": messages})
|
||
|
||
async def push(self, chat_id: str, messages: List[Dict[str, Any]]) -> None:
|
||
await self._post_messages(LINE_PUSH_URL, "push", {"to": chat_id, "messages": messages})
|
||
|
||
async def loading(self, chat_id: str, seconds: int = 60) -> None:
|
||
"""Loading indicator (DM only). LINE rejects this for groups/rooms."""
|
||
if not chat_id or not chat_id.startswith("U"):
|
||
return
|
||
import aiohttp # noqa: F401 — ImportError must escape the swallow-all below
|
||
clamped = max(5, min(60, (seconds // 5) * 5 or 5)) # LINE: 5-step increments, max 60
|
||
try:
|
||
async with self._session(5.0) as session:
|
||
await session.post(LINE_LOADING_URL, headers=self._headers, json={"chatId": chat_id, "loadingSeconds": clamped})
|
||
except Exception as exc: # best-effort; never raise
|
||
logger.debug("LINE loading indicator failed: %s", exc)
|
||
|
||
async def fetch_content(self, message_id: str) -> bytes:
|
||
"""Download an inbound media message's binary content."""
|
||
async with self._session(30.0) as session:
|
||
url = LINE_CONTENT_URL_FMT.format(message_id=message_id)
|
||
async with session.get(url, headers={"Authorization": f"Bearer {self._token}"}) as resp:
|
||
if resp.status >= 400:
|
||
raise RuntimeError(f"LINE content {resp.status}")
|
||
return await resp.read()
|
||
|
||
async def get_bot_user_id(self) -> Optional[str]:
|
||
"""Fetch this channel's own userId so we can filter self-messages."""
|
||
import aiohttp # noqa: F401 — ImportError must escape the swallow-all below
|
||
try:
|
||
async with self._session(10.0) as session:
|
||
async with session.get(LINE_BOT_INFO_URL, headers=self._headers) as resp:
|
||
return None if resp.status >= 400 else (await resp.json()).get("userId")
|
||
except Exception:
|
||
return None
|
||
|
||
|
||
def _text_message(text: str) -> Dict[str, Any]:
|
||
"""Build a LINE text message object, capped to per-bubble max."""
|
||
return {"type": "text", "text": text if len(text) <= LINE_PER_BUBBLE_CHARS else text[: LINE_PER_BUBBLE_CHARS - 1] + "…"}
|
||
|
||
|
||
def _text_messages(content: str) -> List[Dict[str, Any]]:
|
||
"""Markdown-strip, chunk and cap ``content`` into ≤5 LINE text messages."""
|
||
chunks = split_for_line(strip_markdown_preserving_urls(content))
|
||
return [_text_message(c) for c in chunks][:LINE_MAX_MESSAGES_PER_CALL]
|
||
|
||
|
||
def build_postback_button_message(text: str, button_label: str, request_id: str) -> Dict[str, Any]:
|
||
"""Slow-LLM postback bubble. Template Buttons stay tappable from history (Quick
|
||
Reply chips vanish on the next message). LINE limits: text ≤160, altText ≤400."""
|
||
truncated = text if len(text) <= 160 else text[:157] + "..."
|
||
alt = text if len(text) <= 400 else text[:397] + "..."
|
||
action = {
|
||
"type": "postback",
|
||
"label": button_label[:20] or "Get answer",
|
||
"data": json.dumps({"action": "show_response", "request_id": request_id}),
|
||
"displayText": button_label[:300] or "Get answer"}
|
||
return {"type": "template", "altText": alt, "template": {"type": "buttons", "text": truncated, "actions": [action]}}
|
||
|
||
|
||
# Gateway busy-ack prefixes (interrupting / queued / steered / background review);
|
||
# these bypass a PENDING postback cache so they land as visible bubbles.
|
||
_SYSTEM_BYPASS_PREFIXES: Tuple[str, ...] = ("⚡ Interrupting", "⏳ Queued", "⏩ Steered", "💾")
|
||
|
||
|
||
def _is_system_bypass(content: str) -> bool:
|
||
return bool(content) and any(content.startswith(p) for p in _SYSTEM_BYPASS_PREFIXES)
|
||
|
||
|
||
def _csv_set(value: str) -> Set[str]:
|
||
return {x.strip() for x in (value or "").split(",") if x.strip()}
|
||
|
||
|
||
def _truthy_env(name: str, default: bool = False) -> bool:
|
||
v = os.getenv(name)
|
||
return default if v is None else v.strip().lower() in {"1", "true", "yes", "on"}
|
||
|
||
|
||
def _credentials(config) -> Tuple[str, str]:
|
||
"""Return ``(channel_access_token, channel_secret)`` from scoped secrets, then ``extra``."""
|
||
extra = getattr(config, "extra", {}) or {}
|
||
return (
|
||
_get_scoped_secret("LINE_CHANNEL_ACCESS_TOKEN") or extra.get("channel_access_token", ""),
|
||
_get_scoped_secret("LINE_CHANNEL_SECRET") or extra.get("channel_secret", ""))
|
||
|
||
|
||
def _coerce(cast: Callable[[Any], Any], value: Any, default: Any) -> Any:
|
||
try:
|
||
return cast(value)
|
||
except (TypeError, ValueError):
|
||
return default
|
||
|
||
|
||
# Outbound media kinds → (size cap, size error, missing-public-URL error).
|
||
_OUTBOUND_MEDIA = {
|
||
"image": (
|
||
LINE_IMAGE_MAX_BYTES, "image exceeds 10 MB LINE limit",
|
||
"LINE_PUBLIC_URL must be set to send images (LINE only accepts publicly reachable HTTPS URLs)",
|
||
),
|
||
"audio": (LINE_AV_MAX_BYTES, "audio exceeds 200 MB LINE limit", "LINE_PUBLIC_URL must be set to send audio"),
|
||
"video": (LINE_AV_MAX_BYTES, "video exceeds 200 MB LINE limit", "LINE_PUBLIC_URL must be set to send video"),
|
||
}
|
||
|
||
# Inbound media kinds → cached file extension.
|
||
_INBOUND_MEDIA_EXT = {"image": ".jpg", "audio": ".m4a", "video": ".mp4", "file": ".bin"}
|
||
_LIFECYCLE_EVENTS = frozenset({"follow", "unfollow", "join", "leave"})
|
||
|
||
|
||
class LineAdapter(BasePlatformAdapter):
|
||
"""LINE Messaging API gateway adapter (no message editing → REQUIRES_EDIT_FINALIZE stays False)."""
|
||
|
||
def __init__(self, config, **kwargs):
|
||
super().__init__(config=config, platform=Platform("line"))
|
||
extra = getattr(config, "extra", {}) or {}
|
||
|
||
def env_or(env: str, key: str, default: Any = "") -> Any:
|
||
return os.getenv(env) or extra.get(key, default)
|
||
|
||
def allowlist(env: str, key: str) -> Set[str]:
|
||
return _csv_set(os.getenv(env, "")) | set(extra.get(key, []))
|
||
|
||
self.channel_access_token, self.channel_secret = _credentials(config)
|
||
# Host ``None`` → dual-stack bind (see DEFAULT_HOST); empty string collapses to None.
|
||
self.webhook_host = env_or("LINE_HOST", "host", DEFAULT_HOST) or DEFAULT_HOST
|
||
self.webhook_port = _coerce(int, env_or("LINE_PORT", "port", DEFAULT_WEBHOOK_PORT), DEFAULT_WEBHOOK_PORT)
|
||
self.webhook_path = extra.get("webhook_path", DEFAULT_WEBHOOK_PATH)
|
||
# Required for media when the bind isn't publicly reachable.
|
||
self.public_base_url = (env_or("LINE_PUBLIC_URL", "public_url") or "").rstrip("/")
|
||
self.allow_all = _truthy_env("LINE_ALLOW_ALL_USERS", bool(extra.get("allow_all_users", False)))
|
||
self.allowed_users = allowlist("LINE_ALLOWED_USERS", "allowed_users")
|
||
self.allowed_groups = allowlist("LINE_ALLOWED_GROUPS", "allowed_groups")
|
||
self.allowed_rooms = allowlist("LINE_ALLOWED_ROOMS", "allowed_rooms")
|
||
# Slow-LLM postback button threshold + user-overridable copy
|
||
threshold = env_or("LINE_SLOW_RESPONSE_THRESHOLD", "slow_response_threshold", DEFAULT_SLOW_RESPONSE_THRESHOLD)
|
||
self.slow_response_threshold = _coerce(float, threshold, DEFAULT_SLOW_RESPONSE_THRESHOLD)
|
||
self.pending_text = env_or("LINE_PENDING_TEXT", "pending_text", DEFAULT_PENDING_REPLY_TEXT)
|
||
self.button_label = env_or("LINE_BUTTON_LABEL", "button_label", DEFAULT_BUTTON_LABEL)
|
||
self.delivered_text = env_or("LINE_DELIVERED_TEXT", "delivered_text", DEFAULT_DELIVERED_TEXT)
|
||
self.interrupted_text = env_or("LINE_INTERRUPTED_TEXT", "interrupted_text", DEFAULT_INTERRUPTED_TEXT)
|
||
# Runtime state
|
||
self._client: Optional[_LineClient] = None
|
||
self._app = self._runner = self._site = None # aiohttp web.Application / AppRunner / TCPSite
|
||
self._reply_tokens: Dict[str, Tuple[str, float]] = {} # chat_id → (token, expiry)
|
||
self._cache = RequestCache()
|
||
self._dedup = _MessageDeduplicator()
|
||
self._bot_user_id: Optional[str] = None
|
||
self._lock_key: Optional[str] = None
|
||
self._media_tokens: Dict[str, Tuple[str, float]] = {} # token → (path, expiry)
|
||
self._media_temp_paths: Set[str] = set()
|
||
self._media_ttl = MEDIA_TOKEN_TTL_SECONDS
|
||
self._pending_buttons: Dict[str, str] = {} # one outstanding button per chat: chat_id → request_id
|
||
|
||
def _fail(self, code: str, detail: str, *, retryable: bool = False) -> bool:
|
||
"""Record a fatal connect error and return False."""
|
||
self._set_fatal_error(code, detail, retryable=retryable)
|
||
return False
|
||
|
||
async def connect(self, *, is_reconnect: bool = False) -> bool:
|
||
if not self.channel_access_token or not self.channel_secret:
|
||
return self._fail("config_missing", "LINE_CHANNEL_ACCESS_TOKEN and LINE_CHANNEL_SECRET must be set")
|
||
# One profile per channel token; lock on a hash so the secret never hits disk.
|
||
try:
|
||
from gateway.status import acquire_scoped_lock
|
||
tok_hash = hashlib.sha256(self.channel_access_token.encode()).hexdigest()[:16]
|
||
if not acquire_scoped_lock("line", tok_hash):
|
||
return self._fail("lock_conflict", "LINE channel already in use by another profile")
|
||
self._lock_key = tok_hash
|
||
except ImportError:
|
||
self._lock_key = None
|
||
self._client = _LineClient(self.channel_access_token)
|
||
try: # best-effort self-userId for self-echo filtering (LINE rarely echoes anyway)
|
||
self._bot_user_id = await self._client.get_bot_user_id()
|
||
except Exception as exc:
|
||
logger.debug("LINE: get_bot_user_id failed: %s", exc)
|
||
self._bot_user_id = None
|
||
try:
|
||
from aiohttp import web
|
||
except ImportError:
|
||
return self._fail("missing_dep", "aiohttp is required for the LINE adapter — install with `pip install aiohttp`")
|
||
self._app = web.Application(client_max_size=WEBHOOK_BODY_MAX_BYTES)
|
||
self._app.router.add_post(self.webhook_path, self._handle_webhook)
|
||
self._app.router.add_get(f"{self.webhook_path}/health", self._handle_health) # tunnel/proxy probe
|
||
self._app.router.add_get(f"{DEFAULT_MEDIA_PATH_PREFIX}/{{token}}/{{filename}}", self._handle_media)
|
||
# Plugin-registered routes must be wired before AppRunner.setup() freezes the router.
|
||
self._wire_plugin_handlers(self._app)
|
||
self._runner = web.AppRunner(self._app)
|
||
try:
|
||
await self._runner.setup()
|
||
# SO_REUSEADDR: on macOS/BSD two sockets with it can silently split traffic →
|
||
# disable; on Linux it only allows rebinding past TIME_WAIT → keep default.
|
||
self._site = web.TCPSite(
|
||
self._runner, self.webhook_host, self.webhook_port,
|
||
reuse_address=False if sys.platform == "darwin" else None)
|
||
await self._site.start()
|
||
except OSError as exc:
|
||
return self._fail(
|
||
"bind_failed",
|
||
f"Could not bind LINE webhook on {self.webhook_host or 'all IPv4+IPv6 interfaces'}:"
|
||
f"{self.webhook_port}: {exc}",
|
||
retryable=True)
|
||
self._mark_connected()
|
||
logger.info(
|
||
"LINE: webhook listening on %s:%s%s%s",
|
||
self.webhook_host or "* (all interfaces, IPv4+IPv6)",
|
||
self.webhook_port,
|
||
self.webhook_path,
|
||
f" (public: {self.public_base_url})" if self.public_base_url else "")
|
||
return True
|
||
|
||
async def disconnect(self) -> None:
|
||
self._mark_disconnected()
|
||
for attr, method in (("_site", "stop"), ("_runner", "cleanup")):
|
||
obj = getattr(self, attr)
|
||
if obj is not None:
|
||
with contextlib.suppress(Exception):
|
||
await getattr(obj, method)()
|
||
setattr(self, attr, None)
|
||
self._app = None
|
||
for path in list(self._media_temp_paths):
|
||
_unlink_quietly(path)
|
||
self._media_temp_paths.clear()
|
||
self._media_tokens.clear()
|
||
if self._lock_key:
|
||
with contextlib.suppress(Exception):
|
||
from gateway.status import release_scoped_lock
|
||
release_scoped_lock("line", self._lock_key)
|
||
self._lock_key = None
|
||
|
||
async def _handle_health(self, request) -> Any:
|
||
from aiohttp import web
|
||
return web.json_response({"status": "ok", "platform": "line"})
|
||
|
||
async def _handle_webhook(self, request) -> Any:
|
||
from aiohttp import web
|
||
try: # explicit body cap: aiohttp's client_max_size only covers some body modes
|
||
body = await request.read()
|
||
except Exception as exc:
|
||
logger.debug("LINE: read failed: %s", exc)
|
||
return web.Response(status=400, text="bad request")
|
||
if len(body) > WEBHOOK_BODY_MAX_BYTES:
|
||
return web.Response(status=413, text="payload too large")
|
||
signature = request.headers.get("X-Line-Signature", "")
|
||
if not verify_line_signature(body, signature, self.channel_secret):
|
||
return web.Response(status=401, text="invalid signature")
|
||
try:
|
||
payload = json.loads(body.decode("utf-8"))
|
||
except (UnicodeDecodeError, json.JSONDecodeError):
|
||
return web.Response(status=400, text="bad json")
|
||
for event in payload.get("events", []) or []:
|
||
try:
|
||
await self._dispatch_event(event)
|
||
except Exception:
|
||
logger.exception("LINE: dispatch_event failed")
|
||
return web.Response(status=200, text="ok")
|
||
|
||
async def _dispatch_event(self, event: Dict[str, Any]) -> None:
|
||
event_type = event.get("type")
|
||
source = event.get("source") or {}
|
||
webhook_event_id = event.get("webhookEventId", "") or ""
|
||
if webhook_event_id and self._dedup.is_duplicate(webhook_event_id): # at-least-once redelivery
|
||
logger.debug("LINE: ignoring duplicate webhook event %s", webhook_event_id)
|
||
return
|
||
if self._bot_user_id and source.get("userId", "") == self._bot_user_id:
|
||
return
|
||
if not _allowed_for_source(
|
||
source, allow_all=self.allow_all, user_ids=self.allowed_users,
|
||
group_ids=self.allowed_groups, room_ids=self.allowed_rooms):
|
||
logger.info("LINE: rejecting unauthorized source %s", source)
|
||
return
|
||
if event_type == "message":
|
||
await self._handle_message_event(event)
|
||
elif event_type == "postback":
|
||
await self._handle_postback_event(event)
|
||
elif event_type in _LIFECYCLE_EVENTS:
|
||
logger.info("LINE: lifecycle event %s from %s", event_type, source)
|
||
else:
|
||
logger.debug("LINE: ignoring event type %r", event_type)
|
||
|
||
async def _handle_message_event(self, event: Dict[str, Any]) -> None:
|
||
msg = event.get("message") or {}
|
||
msg_type = msg.get("type", "")
|
||
message_id = msg.get("id", "")
|
||
reply_token = event.get("replyToken", "")
|
||
source = event.get("source") or {}
|
||
chat_id, chat_type = _resolve_chat(source)
|
||
user_id = source.get("userId", "") or chat_id
|
||
if chat_id and reply_token: # stash the reply token for outbound use
|
||
self._reply_tokens[chat_id] = (reply_token, time.time() + LINE_REPLY_TOKEN_TTL_SECONDS)
|
||
media_urls: List[str] = []
|
||
media_types: List[str] = []
|
||
if msg_type == "text":
|
||
text = msg.get("text", "") or ""
|
||
elif msg_type in _INBOUND_MEDIA_EXT: # fetch, cache, surface a vision-friendly local path
|
||
local_path, media_type = await self._download_media(
|
||
message_id, msg_type, filename=msg.get("fileName") or msg.get("file_name"))
|
||
if local_path:
|
||
media_urls, media_types = [local_path], [media_type]
|
||
text = f"[{msg_type}]"
|
||
elif msg_type == "sticker":
|
||
keywords = msg.get("keywords") or []
|
||
text = f"[sticker: {', '.join(keywords)}]" if keywords else "[sticker]"
|
||
elif msg_type == "location":
|
||
text = f"[location: {msg.get('title', '')} {msg.get('address', '')}]".strip()
|
||
else:
|
||
text = f"[unsupported message type: {msg_type}]"
|
||
if chat_type == "dm" and self._client: # best-effort typing indicator (DM only)
|
||
asyncio.create_task(self._client.loading(chat_id))
|
||
source_obj = self.build_source(
|
||
chat_id=chat_id, chat_type=chat_type, user_id=user_id, user_name=user_id, chat_name=chat_id)
|
||
await self.handle_message(MessageEvent(
|
||
text=text, message_type=_LINE_MESSAGE_TYPES.get(msg_type, MessageType.TEXT), source=source_obj,
|
||
raw_message=event, message_id=message_id, media_urls=media_urls, media_types=media_types))
|
||
|
||
async def _handle_postback_event(self, event: Dict[str, Any]) -> None:
|
||
"""User tapped the slow-LLM postback button — deliver the cached payload. READY replies (push
|
||
fallback) and ERROR replies settle the entry; DELIVERED / PENDING just re-issue their notice."""
|
||
reply_token = event.get("replyToken", "")
|
||
chat_id, _ = _resolve_chat(event.get("source") or {})
|
||
try:
|
||
parsed = json.loads((event.get("postback") or {}).get("data", "") or "")
|
||
except (TypeError, json.JSONDecodeError):
|
||
return
|
||
request_id = parsed.get("request_id", "") if parsed.get("action") == "show_response" else ""
|
||
entry = self._cache.get(request_id) if request_id else None
|
||
if not self._client or not reply_token or not entry:
|
||
return
|
||
state = entry.state
|
||
if state is State.READY:
|
||
messages = _text_messages(str(entry.payload or ""))
|
||
elif state is State.ERROR:
|
||
messages = [_text_message(str(entry.payload or self.interrupted_text))]
|
||
else:
|
||
messages = [_text_message(self.delivered_text if state is State.DELIVERED else self.pending_text)]
|
||
try:
|
||
await self._client.reply(reply_token, messages)
|
||
except Exception as exc:
|
||
if state is not State.READY:
|
||
if state is State.ERROR:
|
||
logger.warning("LINE: postback ERROR reply failed: %s", exc)
|
||
return
|
||
logger.warning("LINE: postback reply failed (%s); falling back to push", exc)
|
||
try:
|
||
await self._client.push(chat_id, messages)
|
||
except Exception as exc2:
|
||
logger.error("LINE: postback push fallback failed: %s", exc2)
|
||
return
|
||
if state in (State.READY, State.ERROR):
|
||
self._cache.mark_delivered(request_id)
|
||
self._pending_buttons.pop(chat_id, None)
|
||
|
||
async def _download_media(
|
||
self, message_id: str, msg_type: str, *, filename: Optional[str] = None
|
||
) -> Tuple[Optional[str], str]:
|
||
if not self._client or not message_id:
|
||
return None, ""
|
||
try:
|
||
data = await self._client.fetch_content(message_id)
|
||
except Exception as exc:
|
||
logger.warning("LINE: failed to fetch %s content for %s: %s", msg_type, message_id, exc)
|
||
return None, ""
|
||
ext = _INBOUND_MEDIA_EXT.get(msg_type, ".bin")
|
||
try:
|
||
if msg_type == "image":
|
||
return cache_image_from_bytes(data, ext=ext), "image/jpeg"
|
||
if msg_type in ("audio", "video"):
|
||
cache_fn = cache_audio_from_bytes if msg_type == "audio" else cache_video_from_bytes
|
||
return cache_fn(data, ext=ext), mimetypes.guess_type(f"{msg_type}{ext}")[0] or f"{msg_type}/mp4"
|
||
document_name = filename or f"line_file{ext}"
|
||
mime = mimetypes.guess_type(document_name)[0] or "application/octet-stream"
|
||
return cache_document_from_bytes(data, document_name), mime
|
||
except Exception as exc:
|
||
logger.warning("LINE: failed to cache %s payload: %s", msg_type, exc)
|
||
return None, ""
|
||
|
||
async def send(
|
||
self, chat_id: str, content: str, reply_to: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None
|
||
) -> SendResult:
|
||
if not self._client:
|
||
return SendResult(success=False, error="LINE adapter not connected")
|
||
# A PENDING postback button caches the response for the tap — except system
|
||
# busy-acks, which must land as visible bubbles.
|
||
pending_rid = self._pending_buttons.get(chat_id)
|
||
if pending_rid and not _is_system_bypass(content):
|
||
self._cache.set_ready(pending_rid, content)
|
||
return SendResult(success=True, message_id=pending_rid)
|
||
return await self._send_text_chunks(chat_id, content, force_push=False)
|
||
|
||
async def _send_text_chunks(self, chat_id: str, content: str, *, force_push: bool) -> SendResult:
|
||
return await self._send_messages(chat_id, _text_messages(content), force_push=force_push, text=True)
|
||
|
||
def _consume_reply_token(self, chat_id: str) -> Tuple[str, bool]:
|
||
"""Consume a stashed reply token if present and unexpired → ``(token, used_reply)``."""
|
||
token, expires_at = self._reply_tokens.pop(chat_id, None) or ("", 0.0)
|
||
return (token, True) if token and time.time() < expires_at else ("", False)
|
||
|
||
async def send_typing(self, chat_id: str, metadata=None) -> None:
|
||
"""Trigger LINE's loading-animation indicator (DM only)."""
|
||
if self._client and chat_id:
|
||
await self._client.loading(chat_id)
|
||
|
||
async def get_chat_info(self, chat_id: str) -> Dict[str, Any]:
|
||
"""Best-effort chat info inferred from the ID prefix (U=user, C=group, R=room)."""
|
||
chat_type = {"U": "dm", "C": "group", "R": "channel"}.get((chat_id or "")[:1], "dm")
|
||
return {"name": chat_id or "", "type": chat_type}
|
||
|
||
def format_message(self, content: str) -> str:
|
||
"""Strip Markdown that LINE can't render. URLs are preserved."""
|
||
return strip_markdown_preserving_urls(content)
|
||
|
||
async def _keep_typing(self, chat_id: str, *args, **kwargs) -> None:
|
||
"""Wrap the base typing heartbeat; fire the slow-LLM postback button at threshold."""
|
||
if self.slow_response_threshold <= 0 or not self._client or not chat_id:
|
||
await super()._keep_typing(chat_id, *args, **kwargs)
|
||
return
|
||
|
||
async def _fire_postback() -> None:
|
||
await asyncio.sleep(self.slow_response_threshold)
|
||
# Only fire while a usable reply token remains (the agent responding
|
||
# consumes it) and no button is already outstanding.
|
||
if chat_id not in self._reply_tokens or chat_id in self._pending_buttons:
|
||
return
|
||
rid = self._cache.register_pending(chat_id)
|
||
self._pending_buttons[chat_id] = rid
|
||
token, used = self._consume_reply_token(chat_id)
|
||
if not used:
|
||
self._pending_buttons.pop(chat_id, None)
|
||
return
|
||
msg = build_postback_button_message(self.pending_text, self.button_label, rid)
|
||
try:
|
||
await self._client.reply(token, [msg])
|
||
logger.info("LINE: sent slow-LLM postback button for chat %s (rid=%s)", chat_id, rid)
|
||
except Exception as exc:
|
||
logger.warning("LINE: postback button send failed: %s", exc)
|
||
self._pending_buttons.pop(chat_id, None)
|
||
|
||
post_task = asyncio.create_task(_fire_postback())
|
||
try:
|
||
await super()._keep_typing(chat_id, *args, **kwargs)
|
||
finally:
|
||
if not post_task.done():
|
||
post_task.cancel()
|
||
with contextlib.suppress(asyncio.CancelledError, Exception):
|
||
await post_task
|
||
|
||
async def interrupt_session_activity(self, session_key: str, chat_id: str) -> None:
|
||
"""Resolve any orphan PENDING postback so the button doesn't loop."""
|
||
await super().interrupt_session_activity(session_key, chat_id)
|
||
rid = self._pending_buttons.pop(chat_id, None)
|
||
if rid:
|
||
self._cache.set_error(rid, self.interrupted_text)
|
||
|
||
def _register_media(self, file_path: str, *, cleanup: bool = False) -> str:
|
||
"""Register a local file for HTTPS serving (evicting expired tokens); return the URL token."""
|
||
now = time.time()
|
||
for token, (path, exp) in list(self._media_tokens.items()):
|
||
if now > exp:
|
||
self._media_tokens.pop(token, None)
|
||
if path in self._media_temp_paths:
|
||
self._media_temp_paths.discard(path)
|
||
_unlink_quietly(path)
|
||
resolved = str(Path(file_path).resolve())
|
||
token = secrets.token_urlsafe(32)
|
||
self._media_tokens[token] = (resolved, now + self._media_ttl)
|
||
if cleanup:
|
||
self._media_temp_paths.add(resolved)
|
||
return token
|
||
|
||
def _media_url(self, token: str, filename: str) -> str:
|
||
"""Build the public HTTPS URL for a media token."""
|
||
if self.public_base_url:
|
||
base = self.public_base_url
|
||
else:
|
||
# Wildcard/dual-stack binds have no fetchable hostname (the _missing_public_url
|
||
# guard should have fired); fall back to localhost so the URL is well-formed.
|
||
host = "127.0.0.1" if self._missing_public_url() else self.webhook_host
|
||
base = f"https://{host}" if self.webhook_port == 443 else f"https://{host}:{self.webhook_port}"
|
||
return f"{base}{DEFAULT_MEDIA_PATH_PREFIX}/{token}/{_urlquote(filename, safe='')}"
|
||
|
||
def _serve_file(self, path: Path) -> str:
|
||
"""Register ``path`` for serving and return its public URL."""
|
||
return self._media_url(self._register_media(str(path.resolve())), path.name)
|
||
|
||
def _missing_public_url(self) -> bool:
|
||
"""True when no LINE_PUBLIC_URL is set and the bind host is wildcard/dual-stack ``None``."""
|
||
return not self.public_base_url and (self.webhook_host is None or self.webhook_host in _WILDCARD_HOSTS)
|
||
|
||
def _check_media_file(self, kind: str, file_path: str) -> Tuple[Optional[Path], Optional[SendResult]]:
|
||
"""Shared preflight for send_image_file/send_voice/send_video → ``(path, error)``."""
|
||
max_bytes, size_error, url_error = _OUTBOUND_MEDIA[kind]
|
||
path = Path(file_path)
|
||
if not path.exists() or not path.is_file():
|
||
return None, SendResult(success=False, error=f"{kind} file not found: {file_path}")
|
||
if path.stat().st_size > max_bytes:
|
||
return None, SendResult(success=False, error=size_error)
|
||
if not self._client:
|
||
return None, SendResult(success=False, error="LINE adapter not connected")
|
||
if self._missing_public_url():
|
||
return None, SendResult(success=False, error=url_error)
|
||
return path, None
|
||
|
||
async def _handle_media(self, request) -> Any:
|
||
"""Serve a registered local file for LINE's media URLs. Defence-in-depth: the resolved
|
||
path is rechecked against allowed roots (tempdir, ``/tmp``→``/private/tmp`` on macOS, HERMES_HOME)."""
|
||
from aiohttp import web
|
||
token = request.match_info["token"]
|
||
file_path, expires_at = self._media_tokens.get(token) or ("", 0.0)
|
||
if not file_path:
|
||
return web.Response(status=404, text="not found")
|
||
if time.time() > expires_at:
|
||
self._media_tokens.pop(token, None)
|
||
return web.Response(status=410, text="gone")
|
||
path = Path(file_path)
|
||
if not path.is_file():
|
||
return web.Response(status=404, text="not found")
|
||
try:
|
||
from hermes_constants import get_hermes_home
|
||
hermes_home = Path(get_hermes_home()).resolve()
|
||
except Exception:
|
||
hermes_home = Path.home().joinpath(".hermes").resolve()
|
||
allowed_roots = {Path(tempfile.gettempdir()).resolve(), Path("/tmp").resolve(), hermes_home}
|
||
resolved = path.resolve()
|
||
if not any(resolved.is_relative_to(r) for r in allowed_roots):
|
||
logger.warning("LINE: refusing to serve outside allowed roots: %s", resolved)
|
||
return web.Response(status=403, text="forbidden")
|
||
content_type = mimetypes.guess_type(str(path))[0] or "application/octet-stream"
|
||
return web.FileResponse(path, headers={"Content-Type": content_type})
|
||
|
||
async def send_image_file(
|
||
self, chat_id: str, image_path: str, caption: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None
|
||
) -> SendResult:
|
||
path, err = self._check_media_file("image", image_path)
|
||
if err:
|
||
return err
|
||
url = self._serve_file(path)
|
||
if not url.lower().startswith("https://"):
|
||
return SendResult(success=False, error=f"LINE image URL must be HTTPS: {url}")
|
||
msgs: List[Dict[str, Any]] = [{"type": "image", "originalContentUrl": url, "previewImageUrl": url}]
|
||
return await self._send_messages(chat_id, msgs + ([_text_message(caption)] if caption else []))
|
||
|
||
async def send_voice(
|
||
self, chat_id: str, audio_path: str, duration_ms: int = 1000, metadata: Optional[Dict[str, Any]] = None
|
||
) -> SendResult:
|
||
path, err = self._check_media_file("audio", audio_path)
|
||
if err:
|
||
return err
|
||
msg = {"type": "audio", "originalContentUrl": self._serve_file(path), "duration": int(duration_ms)}
|
||
return await self._send_messages(chat_id, [msg])
|
||
|
||
async def send_video(
|
||
self, chat_id: str, video_path: str, preview_path: Optional[str] = None,
|
||
metadata: Optional[Dict[str, Any]] = None) -> SendResult:
|
||
path, err = self._check_media_file("video", video_path)
|
||
if err:
|
||
return err
|
||
# LINE requires previewImageUrl: use the supplied preview, else a stdlib 1×1 PNG.
|
||
if preview_path and Path(preview_path).is_file():
|
||
preview_url = self._serve_file(Path(preview_path))
|
||
else:
|
||
tmp = tempfile.NamedTemporaryFile(suffix=".png", delete=False)
|
||
try:
|
||
tmp.write(_FALLBACK_PNG_PREVIEW)
|
||
tmp.flush()
|
||
tmp.close()
|
||
preview_url = self._media_url(self._register_media(tmp.name, cleanup=True), "preview.png")
|
||
except Exception:
|
||
_unlink_quietly(tmp.name)
|
||
raise
|
||
msg = {"type": "video", "originalContentUrl": self._serve_file(path), "previewImageUrl": preview_url}
|
||
return await self._send_messages(chat_id, [msg])
|
||
|
||
async def _send_messages(
|
||
self, chat_id: str, messages: List[Dict[str, Any]], *, force_push: bool = False, text: bool = False
|
||
) -> SendResult:
|
||
"""Send built message objects, batched at 5/call: reply token first, then push. ``text``
|
||
selects the text contract: reply success reports the token as message_id; push failure logs at error."""
|
||
if not self._client:
|
||
return SendResult(success=False, error="LINE adapter not connected")
|
||
if not messages:
|
||
return SendResult(success=True, message_id=None)
|
||
n = LINE_MAX_MESSAGES_PER_CALL
|
||
batches = [messages[i:i + n] for i in range(0, len(messages), n)]
|
||
token, used_reply = self._consume_reply_token(chat_id)
|
||
start = 0
|
||
if used_reply and not force_push:
|
||
try:
|
||
await self._client.reply(token, batches[0])
|
||
if text:
|
||
return SendResult(success=True, message_id=token)
|
||
start = 1
|
||
except Exception as exc:
|
||
logger.info("LINE: reply token rejected (%s); falling back to push", exc)
|
||
for i in range(start, len(batches)): # push the rest (reply token is single-use)
|
||
try:
|
||
await self._client.push(chat_id, batches[i])
|
||
except Exception as exc:
|
||
if i > 0:
|
||
logger.warning("LINE: push for follow-up batch failed: %s", exc)
|
||
elif text:
|
||
logger.error("LINE: push send failed: %s", exc)
|
||
return SendResult(success=False, error=str(exc))
|
||
return SendResult(success=True, message_id=None)
|
||
|
||
|
||
def _unlink_quietly(path: str) -> None:
|
||
with contextlib.suppress(OSError):
|
||
os.unlink(path)
|
||
|
||
|
||
def _env_credentials_present() -> bool:
|
||
return bool(_get_scoped_secret("LINE_CHANNEL_ACCESS_TOKEN") and _get_scoped_secret("LINE_CHANNEL_SECRET"))
|
||
|
||
|
||
def check_requirements() -> bool:
|
||
"""Plugin gate: require credentials AND aiohttp at runtime."""
|
||
if not _env_credentials_present():
|
||
return False
|
||
try:
|
||
import aiohttp # noqa: F401
|
||
return True
|
||
except ImportError:
|
||
return False
|
||
|
||
|
||
def validate_config(config) -> bool:
|
||
return all(_credentials(config))
|
||
|
||
|
||
def is_connected(config) -> bool:
|
||
"""Surface in ``hermes status`` even before the adapter is instantiated."""
|
||
return validate_config(config)
|
||
|
||
|
||
def _env_enablement() -> Optional[Dict[str, Any]]:
|
||
"""Seed PlatformConfig.extra from env-only setups so ``hermes status`` sees them."""
|
||
if not _env_credentials_present():
|
||
return None
|
||
seeded: Dict[str, Any] = {}
|
||
if os.getenv("LINE_PORT"):
|
||
try:
|
||
seeded["port"] = int(os.environ["LINE_PORT"])
|
||
except ValueError:
|
||
pass
|
||
for env, key in (("LINE_HOST", "host"), ("LINE_PUBLIC_URL", "public_url"), ("LINE_HOME_CHANNEL", "home_channel")):
|
||
if os.getenv(env):
|
||
seeded[key] = os.environ[env]
|
||
return seeded
|
||
|
||
|
||
async def _standalone_send(
|
||
pconfig, chat_id: str, message: str, *,
|
||
thread_id: Optional[str] = None, media_files: Optional[List[str]] = None, force_document: bool = False,
|
||
) -> Dict[str, Any]:
|
||
"""Out-of-process Push delivery for cron jobs detached from the gateway (no inbound event → no
|
||
reply token). ``thread_id`` is ignored (no threads); ``media_files`` need the webhook server."""
|
||
extra = getattr(pconfig, "extra", {}) or {}
|
||
token = _get_scoped_secret("LINE_CHANNEL_ACCESS_TOKEN") or extra.get("channel_access_token", "")
|
||
if not token or not chat_id:
|
||
return {"error": "LINE standalone send: missing token or chat_id"}
|
||
messages = _text_messages(message or "") or [_text_message("")]
|
||
if media_files: # tell the recipient media was generated but not delivered
|
||
messages.append(_text_message(f"[{len(media_files)} attachment(s) generated; not deliverable from cron]"))
|
||
messages = messages[:LINE_MAX_MESSAGES_PER_CALL]
|
||
try:
|
||
await _LineClient(token).push(chat_id, messages)
|
||
return {"success": True, "message_id": None}
|
||
except Exception as exc:
|
||
return {"error": str(exc)}
|
||
|
||
|
||
def interactive_setup() -> None:
|
||
"""Minimal stdin wizard for ``hermes setup line`` (writes ``~/.hermes/.env``)."""
|
||
print(
|
||
"\nLINE Messaging API setup\n------------------------\n"
|
||
"Create a Messaging API channel at https://developers.line.biz/console/\nthen copy the values below.\n"
|
||
)
|
||
try:
|
||
from hermes_cli.config import get_env_value as _get_env, save_env_value as _set_env
|
||
except ImportError:
|
||
print("hermes_cli.config not available; set LINE_* vars manually in ~/.hermes/.env")
|
||
return
|
||
|
||
def _prompt(var: str, prompt: str, *, secret: bool = False) -> None:
|
||
existing = _get_env(var) if callable(_get_env) else None
|
||
suffix = " [keep current]" if existing else ""
|
||
try:
|
||
if secret:
|
||
from hermes_cli.secret_prompt import masked_secret_prompt
|
||
value = masked_secret_prompt(f"{prompt}{suffix}: ")
|
||
else:
|
||
value = input(f"{prompt}{suffix}: ").strip()
|
||
except (EOFError, KeyboardInterrupt):
|
||
print()
|
||
return
|
||
if value:
|
||
_set_env(var, value)
|
||
|
||
_prompt("LINE_CHANNEL_ACCESS_TOKEN", "Channel access token", secret=True)
|
||
_prompt("LINE_CHANNEL_SECRET", "Channel secret", secret=True)
|
||
_prompt("LINE_PUBLIC_URL", "Public HTTPS base URL (optional, e.g. https://my-tunnel.example.com)")
|
||
_prompt("LINE_ALLOWED_USERS", "Allowed user IDs (comma-separated; blank=skip)")
|
||
print("Done. Set the webhook URL in the LINE console to <your-public-url>/line/webhook and enable 'Use webhook'.")
|
||
|
||
|
||
def register(ctx) -> None:
|
||
"""Plugin entry point — called by the Hermes plugin system at startup."""
|
||
ctx.register_platform(
|
||
name="line", label="LINE", adapter_factory=lambda cfg: LineAdapter(cfg), check_fn=check_requirements,
|
||
validate_config=validate_config, is_connected=is_connected,
|
||
required_env=["LINE_CHANNEL_ACCESS_TOKEN", "LINE_CHANNEL_SECRET"], install_hint="pip install aiohttp",
|
||
setup_fn=interactive_setup, env_enablement_fn=_env_enablement, cron_deliver_env_var="LINE_HOME_CHANNEL",
|
||
standalone_sender_fn=_standalone_send, allowed_users_env="LINE_ALLOWED_USERS",
|
||
allow_all_env="LINE_ALLOW_ALL_USERS",
|
||
max_message_length=LINE_SAFE_BUBBLE_CHARS, # per-bubble cap is 5000; smart-chunker uses 4500
|
||
emoji="💚", pii_safe=False, allow_update_command=True,
|
||
platform_hint=(
|
||
"You are chatting via LINE Messaging API. LINE does NOT render "
|
||
"Markdown — text bubbles show ** and # literally. Bare URLs are "
|
||
"auto-linked, but \\[label\\](url) syntax is not. Each text bubble "
|
||
"is capped at 5000 characters and at most 5 bubbles are sent per "
|
||
"reply, so keep responses concise. Image/audio/video sending "
|
||
"requires LINE_PUBLIC_URL configured to a publicly reachable HTTPS "
|
||
"host. Slow responses surface a 'Get answer' button the user taps "
|
||
"to fetch the reply via a fresh free token."))
|