|
| 1 | +import json |
| 2 | +import mimetypes |
| 3 | +from pathlib import Path |
| 4 | +from typing import Any |
| 5 | + |
| 6 | +import aiohttp |
| 7 | + |
| 8 | +from astrbot.api import logger |
| 9 | +from astrbot.api.event import MessageChain |
| 10 | +from astrbot.api.message_components import At, File, Image, Plain, Record, Reply, Video |
| 11 | +from astrbot.core.utils.astrbot_path import get_astrbot_temp_path |
| 12 | + |
| 13 | + |
| 14 | +class MattermostClient: |
| 15 | + def __init__(self, base_url: str, token: str) -> None: |
| 16 | + self.base_url = base_url.rstrip("/") |
| 17 | + self.token = token |
| 18 | + self._session: aiohttp.ClientSession | None = None |
| 19 | + |
| 20 | + async def ensure_session(self) -> aiohttp.ClientSession: |
| 21 | + if self._session is None or self._session.closed: |
| 22 | + self._session = aiohttp.ClientSession( |
| 23 | + timeout=aiohttp.ClientTimeout(total=30), |
| 24 | + ) |
| 25 | + return self._session |
| 26 | + |
| 27 | + async def close(self) -> None: |
| 28 | + if self._session and not self._session.closed: |
| 29 | + await self._session.close() |
| 30 | + |
| 31 | + def _headers(self) -> dict[str, str]: |
| 32 | + return { |
| 33 | + "Authorization": f"Bearer {self.token}", |
| 34 | + "Content-Type": "application/json", |
| 35 | + } |
| 36 | + |
| 37 | + def _auth_headers(self) -> dict[str, str]: |
| 38 | + return {"Authorization": f"Bearer {self.token}"} |
| 39 | + |
| 40 | + async def get_json(self, path: str) -> dict[str, Any]: |
| 41 | + session = await self.ensure_session() |
| 42 | + url = f"{self.base_url}/api/v4/{path.lstrip('/')}" |
| 43 | + async with session.get(url, headers=self._headers()) as resp: |
| 44 | + if resp.status >= 400: |
| 45 | + body = await resp.text() |
| 46 | + raise RuntimeError( |
| 47 | + f"Mattermost GET {path} failed: {resp.status} {body}" |
| 48 | + ) |
| 49 | + data = await resp.json() |
| 50 | + if not isinstance(data, dict): |
| 51 | + raise RuntimeError(f"Mattermost GET {path} returned non-object JSON") |
| 52 | + return data |
| 53 | + |
| 54 | + async def post_json(self, path: str, payload: dict[str, Any]) -> dict[str, Any]: |
| 55 | + session = await self.ensure_session() |
| 56 | + url = f"{self.base_url}/api/v4/{path.lstrip('/')}" |
| 57 | + async with session.post(url, headers=self._headers(), json=payload) as resp: |
| 58 | + if resp.status >= 400: |
| 59 | + body = await resp.text() |
| 60 | + raise RuntimeError( |
| 61 | + f"Mattermost POST {path} failed: {resp.status} {body}" |
| 62 | + ) |
| 63 | + data = await resp.json() |
| 64 | + if not isinstance(data, dict): |
| 65 | + raise RuntimeError(f"Mattermost POST {path} returned non-object JSON") |
| 66 | + return data |
| 67 | + |
| 68 | + async def get_me(self) -> dict[str, Any]: |
| 69 | + return await self.get_json("users/me") |
| 70 | + |
| 71 | + async def get_channel(self, channel_id: str) -> dict[str, Any]: |
| 72 | + return await self.get_json(f"channels/{channel_id}") |
| 73 | + |
| 74 | + async def get_file_info(self, file_id: str) -> dict[str, Any]: |
| 75 | + return await self.get_json(f"files/{file_id}/info") |
| 76 | + |
| 77 | + async def download_file(self, file_id: str) -> bytes: |
| 78 | + session = await self.ensure_session() |
| 79 | + url = f"{self.base_url}/api/v4/files/{file_id}" |
| 80 | + async with session.get(url, headers=self._auth_headers()) as resp: |
| 81 | + if resp.status >= 400: |
| 82 | + body = await resp.text() |
| 83 | + raise RuntimeError( |
| 84 | + f"Mattermost download file {file_id} failed: {resp.status} {body}" |
| 85 | + ) |
| 86 | + return await resp.read() |
| 87 | + |
| 88 | + async def upload_file( |
| 89 | + self, |
| 90 | + channel_id: str, |
| 91 | + file_bytes: bytes, |
| 92 | + filename: str, |
| 93 | + content_type: str, |
| 94 | + ) -> str: |
| 95 | + session = await self.ensure_session() |
| 96 | + url = f"{self.base_url}/api/v4/files" |
| 97 | + form = aiohttp.FormData() |
| 98 | + form.add_field("channel_id", channel_id) |
| 99 | + form.add_field( |
| 100 | + "files", |
| 101 | + file_bytes, |
| 102 | + filename=filename, |
| 103 | + content_type=content_type, |
| 104 | + ) |
| 105 | + async with session.post(url, headers=self._auth_headers(), data=form) as resp: |
| 106 | + if resp.status >= 400: |
| 107 | + body = await resp.text() |
| 108 | + raise RuntimeError( |
| 109 | + f"Mattermost upload file failed: {resp.status} {body}" |
| 110 | + ) |
| 111 | + data = await resp.json() |
| 112 | + file_infos = data.get("file_infos", []) |
| 113 | + if not file_infos: |
| 114 | + raise RuntimeError("Mattermost upload file returned no file_infos") |
| 115 | + file_id = file_infos[0].get("id", "") |
| 116 | + if not file_id: |
| 117 | + raise RuntimeError("Mattermost upload file returned empty file id") |
| 118 | + return str(file_id) |
| 119 | + |
| 120 | + async def create_post( |
| 121 | + self, |
| 122 | + channel_id: str, |
| 123 | + message: str, |
| 124 | + *, |
| 125 | + file_ids: list[str] | None = None, |
| 126 | + root_id: str | None = None, |
| 127 | + ) -> dict[str, Any]: |
| 128 | + payload: dict[str, Any] = { |
| 129 | + "channel_id": channel_id, |
| 130 | + "message": message, |
| 131 | + } |
| 132 | + if file_ids: |
| 133 | + payload["file_ids"] = file_ids |
| 134 | + if root_id: |
| 135 | + payload["root_id"] = root_id |
| 136 | + return await self.post_json("posts", payload) |
| 137 | + |
| 138 | + async def ws_connect(self) -> aiohttp.ClientWebSocketResponse: |
| 139 | + session = await self.ensure_session() |
| 140 | + ws_url = self.base_url.replace("https://", "wss://", 1).replace( |
| 141 | + "http://", "ws://", 1 |
| 142 | + ) |
| 143 | + ws_url = f"{ws_url}/api/v4/websocket" |
| 144 | + return await session.ws_connect(ws_url, heartbeat=30.0) |
| 145 | + |
| 146 | + async def send_message_chain( |
| 147 | + self, |
| 148 | + channel_id: str, |
| 149 | + message_chain: MessageChain, |
| 150 | + ) -> dict[str, Any]: |
| 151 | + text_parts: list[str] = [] |
| 152 | + file_ids: list[str] = [] |
| 153 | + root_id: str | None = None |
| 154 | + |
| 155 | + for segment in message_chain.chain: |
| 156 | + if isinstance(segment, Plain): |
| 157 | + text_parts.append(segment.text) |
| 158 | + elif isinstance(segment, At): |
| 159 | + mention_name = str(segment.name or segment.qq or "").strip() |
| 160 | + if mention_name: |
| 161 | + text_parts.append(f"@{mention_name}") |
| 162 | + elif isinstance(segment, Reply): |
| 163 | + if segment.id: |
| 164 | + root_id = str(segment.id) |
| 165 | + elif isinstance(segment, Image): |
| 166 | + path = await segment.convert_to_file_path() |
| 167 | + file_path = Path(path) |
| 168 | + file_ids.append( |
| 169 | + await self.upload_file( |
| 170 | + channel_id, |
| 171 | + file_path.read_bytes(), |
| 172 | + file_path.name, |
| 173 | + mimetypes.guess_type(file_path.name)[0] or "image/jpeg", |
| 174 | + ) |
| 175 | + ) |
| 176 | + elif isinstance(segment, (File, Record, Video)): |
| 177 | + if isinstance(segment, File): |
| 178 | + path = await segment.get_file() |
| 179 | + filename = segment.name or Path(path).name |
| 180 | + else: |
| 181 | + path = await segment.convert_to_file_path() |
| 182 | + filename = Path(path).name |
| 183 | + file_path = Path(path) |
| 184 | + file_ids.append( |
| 185 | + await self.upload_file( |
| 186 | + channel_id, |
| 187 | + file_path.read_bytes(), |
| 188 | + filename, |
| 189 | + mimetypes.guess_type(filename)[0] or "application/octet-stream", |
| 190 | + ) |
| 191 | + ) |
| 192 | + else: |
| 193 | + logger.debug( |
| 194 | + "Mattermost send_message_chain skipped unsupported segment: %s", |
| 195 | + segment.type, |
| 196 | + ) |
| 197 | + |
| 198 | + return await self.create_post( |
| 199 | + channel_id, |
| 200 | + "".join(text_parts).strip(), |
| 201 | + file_ids=file_ids or None, |
| 202 | + root_id=root_id, |
| 203 | + ) |
| 204 | + |
| 205 | + async def parse_post_attachments( |
| 206 | + self, |
| 207 | + file_ids: list[str], |
| 208 | + ) -> tuple[list[Any], list[str]]: |
| 209 | + components: list[Any] = [] |
| 210 | + temp_paths: list[str] = [] |
| 211 | + |
| 212 | + for file_id in file_ids: |
| 213 | + try: |
| 214 | + info = await self.get_file_info(file_id) |
| 215 | + file_bytes = await self.download_file(file_id) |
| 216 | + except Exception as exc: |
| 217 | + logger.warning( |
| 218 | + "Mattermost fetch attachment failed %s: %s", file_id, exc |
| 219 | + ) |
| 220 | + continue |
| 221 | + |
| 222 | + filename = str(info.get("name") or f"file_{file_id}") |
| 223 | + mime_type = str(info.get("mime_type") or "application/octet-stream") |
| 224 | + suffix = Path(filename).suffix |
| 225 | + file_path = Path(get_astrbot_temp_path()) / f"mattermost_{file_id}{suffix}" |
| 226 | + try: |
| 227 | + file_path.write_bytes(file_bytes) |
| 228 | + except OSError as exc: |
| 229 | + logger.warning( |
| 230 | + "Mattermost write attachment failed %s -> %s: %s", |
| 231 | + file_id, |
| 232 | + file_path, |
| 233 | + exc, |
| 234 | + ) |
| 235 | + continue |
| 236 | + temp_paths.append(str(file_path)) |
| 237 | + |
| 238 | + if mime_type.startswith("image/"): |
| 239 | + components.append(Image.fromFileSystem(str(file_path))) |
| 240 | + else: |
| 241 | + components.append(File(name=filename, file=str(file_path))) |
| 242 | + |
| 243 | + return components, temp_paths |
| 244 | + |
| 245 | + @staticmethod |
| 246 | + def parse_websocket_post(raw_post: str) -> dict[str, Any] | None: |
| 247 | + try: |
| 248 | + parsed = json.loads(raw_post) |
| 249 | + except json.JSONDecodeError: |
| 250 | + return None |
| 251 | + if not isinstance(parsed, dict): |
| 252 | + return None |
| 253 | + return parsed |
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