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"""
Server management utilities for Universal MCP Client
"""
import asyncio
import re
import logging
import traceback
from typing import Tuple
from config import MCPServerConfig
from mcp_client import UniversalMCPClient
logger = logging.getLogger(__name__)
class ServerManager:
"""Manages MCP server connections and status"""
def __init__(self, mcp_client: UniversalMCPClient):
self.mcp_client = mcp_client
def convert_hf_space_to_url(self, space_name: str) -> str:
"""
Convert HuggingFace space name to proper URL format.
HuggingFace URL rules:
- Replace "/" with "-"
- Convert to lowercase
- Replace dots and other special chars with "-"
- Remove consecutive hyphens
"""
if "/" not in space_name:
raise ValueError("Space name should be in format: username/space-name")
# Replace "/" with "-"
url_name = space_name.replace("/", "-")
# Convert to lowercase
url_name = url_name.lower()
# Replace dots and other special characters with hyphens
url_name = re.sub(r'[^a-z0-9\-]', '-', url_name)
# Remove consecutive hyphens
url_name = re.sub(r'-+', '-', url_name)
# Remove leading/trailing hyphens
url_name = url_name.strip('-')
return f"https://{url_name}.hf.space"
def add_custom_server(self, name: str, space_name: str) -> Tuple[str, str]:
"""Add a custom MCP server from HuggingFace space name"""
logger.info(f"➕ Adding MCP server: {name} from space: {space_name}")
if not name or not space_name:
return "❌ Please provide both server name and space name", ""
space_name = space_name.strip()
try:
# Use the improved URL conversion
mcp_url = self.convert_hf_space_to_url(space_name)
logger.info(f"🔗 Converted {space_name} → {mcp_url}")
except ValueError as e:
return f"❌ {str(e)}", ""
config = MCPServerConfig(
name=name.strip(),
url=mcp_url,
description=f"MCP server from HuggingFace space: {space_name}",
space_id=space_name
)
try:
# Run async function
def run_async():
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
try:
return loop.run_until_complete(self.mcp_client.add_server_async(config))
finally:
loop.close()
success, message = run_async()
logger.info(f"Server addition result: {success} - {message}")
if success:
# Format success message for accordion display
tools_info = ""
if 'Found' in message and 'tools:' in message:
tools_section = message.split('Found')[1]
tools_info = f"**Available Tools:**\n{tools_section}"
details_html = f"""
<details style="margin-top: 10px;">
<summary style="cursor: pointer; padding: 8px; background: #f0f0f0; border-radius: 4px;"><strong>✅ {name} - Connection Details</strong></summary>
<div style="padding: 10px; border-left: 3px solid #28a745; margin-left: 10px; margin-top: 5px;">
<p><strong>Space:</strong> {space_name}</p>
<p><strong>Base URL:</strong> {mcp_url}</p>
<p><strong>Status:</strong> Connected successfully!</p>
<div style="margin-top: 10px;">
{tools_info.replace('**', '<strong>').replace('**', '</strong>').replace(chr(10), '<br>')}
</div>
</div>
</details>
"""
return "✅ Server added successfully!", details_html
else:
error_html = f"""
<details style="margin-top: 10px;">
<summary style="cursor: pointer; padding: 8px; background: #f8d7da; border-radius: 4px;"><strong>❌ {name} - Connection Failed</strong></summary>
<div style="padding: 10px; border-left: 3px solid #dc3545; margin-left: 10px; margin-top: 5px;">
<p>{message}</p>
</div>
</details>
"""
return f"❌ Failed to add server: {name}", error_html
except Exception as e:
error_msg = f"❌ Failed to add server: {str(e)}"
logger.error(error_msg)
logger.error(traceback.format_exc())
return error_msg, ""
def get_server_status(self) -> Tuple[str, str]:
"""Get status of all servers in accordion format"""
try:
status = self.mcp_client.get_server_status()
server_count = f"**Total MCP Servers**: {len(status)}"
if not status:
return server_count, "<p><em>No MCP servers configured yet.</em></p>"
accordion_html = ""
for name, state in status.items():
server_config = self.mcp_client.servers[name]
base_url = server_config.url.replace("/gradio_api/mcp/sse", "")
# Determine health status
health = "🟢 Healthy" if "✅ Connected" in state else "🔴 Unhealthy"
accordion_html += f"""
<details style="margin-bottom: 10px;">
<summary style="cursor: pointer; padding: 8px; background: #e9ecef; border-radius: 4px;"><strong>🔧 {name}</strong></summary>
<div style="padding: 10px; border-left: 3px solid #007bff; margin-left: 10px; margin-top: 5px;">
<p><strong>Title:</strong> {name}</p>
<p><strong>Status:</strong> Connected (MCP Protocol)</p>
<p><strong>Health:</strong> {health}</p>
<p><strong>Base URL:</strong> {base_url}</p>
</div>
</details>
"""
return server_count, accordion_html
except Exception as e:
return "**Total MCP Servers**: 0", f"<p style='color: red;'>❌ Error getting status: {str(e)}</p>" |