mirror of
https://github.com/FuQuan233/nonebot-plugin-llmchat.git
synced 2026-06-29 08:42:03 +00:00
✨ 支持 MCP Streamable HTTP 传输协议 #28
This commit is contained in:
parent
b6af4ec334
commit
bec3fda293
3 changed files with 50 additions and 7 deletions
11
README.md
11
README.md
|
|
@ -168,8 +168,9 @@ LLMCHAT__MCP_SERVERS同样为一个dict,key为服务器名称,value配置的
|
|||
| command | stdio服务器必填 | 无 | stdio服务器MCP命令 |
|
||||
| args | 否 | [] | stdio服务器MCP命令参数 |
|
||||
| env | 否 | {} | stdio服务器环境变量 |
|
||||
| url | sse服务器必填 | 无 | sse服务器地址 |
|
||||
| headers | 否 | {} | sse模式下http请求头,用于认证或其他设置 |
|
||||
| url | 远程服务器必填 | 无 | 远程MCP服务器地址 |
|
||||
| headers | 否 | {} | 远程服务器http请求头,用于认证或其他设置 |
|
||||
| transport | 否 | 自动 | 远程MCP传输协议类型,可选 `sse` 或 `streamable_http` ,不填则自动探测 |
|
||||
|
||||
以下为在 Claude.app 的MCP服务器配置基础上增加的字段
|
||||
| 配置项 | 必填 | 默认值 | 说明 |
|
||||
|
|
@ -255,6 +256,12 @@ LLMCHAT__MCP_SERVERS同样为一个dict,key为服务器名称,value配置的
|
|||
"formulahendry/mcp-server-code-runner"
|
||||
]
|
||||
},
|
||||
"tavily": {
|
||||
"friendly_name": "Tavily搜索",
|
||||
"additional_prompt": "当你需要搜索最新的互联网信息时,请使用 tavily 工具。",
|
||||
"url": "https://mcp.tavily.com/mcp/?tavilyApiKey=<your-api-key>",
|
||||
"transport": "streamable_http"
|
||||
}
|
||||
}
|
||||
'
|
||||
|
||||
|
|
|
|||
|
|
@ -24,8 +24,9 @@ class MCPServerConfig(BaseModel):
|
|||
command: str | None = Field(None, description="stdio模式下MCP命令")
|
||||
args: list[str] | None = Field([], description="stdio模式下MCP命令参数")
|
||||
env: dict[str, str] | None = Field({}, description="stdio模式下MCP命令环境变量")
|
||||
url: str | None = Field(None, description="sse模式下MCP服务器地址")
|
||||
headers: dict[str, str] | None = Field({}, description="sse模式下http请求头,用于认证或其他设置")
|
||||
url: str | None = Field(None, description="远程MCP服务器地址")
|
||||
headers: dict[str, str] | None = Field({}, description="远程MCP服务器http请求头,用于认证或其他设置")
|
||||
transport: str | None = Field(None, description="远程MCP传输协议类型,可选 'sse' 或 'streamable_http',默认自动检测")
|
||||
|
||||
# 额外字段
|
||||
friendly_name: str | None = Field(None, description="MCP服务器友好名称")
|
||||
|
|
|
|||
|
|
@ -3,8 +3,10 @@ from contextlib import AsyncExitStack
|
|||
from time import monotonic
|
||||
from typing import Any, cast
|
||||
|
||||
import httpx
|
||||
from mcp import ClientSession, StdioServerParameters
|
||||
from mcp.client.sse import sse_client
|
||||
from mcp.client.streamable_http import streamable_http_client
|
||||
from mcp.client.stdio import stdio_client
|
||||
from nonebot import logger
|
||||
|
||||
|
|
@ -88,9 +90,42 @@ class MCPClient:
|
|||
config = self.server_config[server_name]
|
||||
session_stack = AsyncExitStack()
|
||||
if config.url:
|
||||
transport_type = config.transport
|
||||
if transport_type == "streamable_http":
|
||||
logger.debug(f"服务器[{server_name}]使用 streamable_http 传输协议")
|
||||
http_client = await session_stack.enter_async_context(
|
||||
httpx.AsyncClient(headers=config.headers or {})
|
||||
)
|
||||
read, write, _ = await session_stack.enter_async_context(
|
||||
streamable_http_client(url=config.url, http_client=http_client)
|
||||
)
|
||||
transport = (read, write)
|
||||
elif transport_type == "sse":
|
||||
logger.debug(f"服务器[{server_name}]使用 sse 传输协议")
|
||||
transport = await session_stack.enter_async_context(
|
||||
sse_client(url=config.url, headers=config.headers)
|
||||
)
|
||||
else:
|
||||
# 未指定协议,自动探测:先尝试 streamable_http,失败则回退到 sse
|
||||
logger.debug(f"服务器[{server_name}]未指定传输协议,开始自动探测")
|
||||
probe_stack = AsyncExitStack()
|
||||
try:
|
||||
http_client = await probe_stack.enter_async_context(
|
||||
httpx.AsyncClient(headers=config.headers or {})
|
||||
)
|
||||
read, write, _ = await probe_stack.enter_async_context(
|
||||
streamable_http_client(url=config.url, http_client=http_client)
|
||||
)
|
||||
await session_stack.enter_async_context(probe_stack)
|
||||
transport = (read, write)
|
||||
logger.debug(f"服务器[{server_name}]自动探测成功: 使用 streamable_http 传输协议")
|
||||
except Exception as e:
|
||||
await probe_stack.aclose()
|
||||
logger.debug(f"服务器[{server_name}]streamable_http 探测失败({e}),回退到 sse")
|
||||
transport = await session_stack.enter_async_context(
|
||||
sse_client(url=config.url, headers=config.headers)
|
||||
)
|
||||
logger.debug(f"服务器[{server_name}]自动探测成功: 使用 sse 传输协议")
|
||||
elif config.command:
|
||||
stdio_params: dict[str, Any] = {
|
||||
"command": config.command,
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue