Add HTTP transport mode for MCP server with --http flag

Co-authored-by: hlohaus <983577+hlohaus@users.noreply.github.com>

etc/testing/test_mcp_http.py

@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+"""Test HTTP MCP server functionality
+
+This script tests the HTTP transport for the MCP server.
+"""
+
+import asyncio
+import json
+from g4f.mcp.server import MCPServer, MCPRequest
+
+
+async def test_http_server():
+    """Test HTTP server methods"""
+    server = MCPServer()
+    
+    print("Testing HTTP MCP Server Functionality")
+    print("=" * 70)
+    
+    # Test that server can be initialized
+    print("\n✓ Server initialized successfully")
+    print(f"  Server: {server.server_info['name']}")
+    print(f"  Version: {server.server_info['version']}")
+    
+    # Test that run_http method exists
+    if hasattr(server, 'run_http'):
+        print("\n✓ HTTP transport method (run_http) available")
+        print(f"  Signature: run_http(host, port)")
+    else:
+        print("\n✗ HTTP transport method not found")
+        return
+    
+    # Test request handling (same for both transports)
+    print("\n✓ Testing request handling...")
+    
+    init_request = MCPRequest(
+        jsonrpc="2.0",
+        id=1,
+        method="initialize",
+        params={}
+    )
+    response = await server.handle_request(init_request)
+    
+    if response.result and response.result.get("protocolVersion"):
+        print(f"  Protocol Version: {response.result['protocolVersion']}")
+        print("  ✓ Request handling works correctly")
+    
+    print("\n" + "=" * 70)
+    print("HTTP MCP Server Tests Passed!")
+    print("\nTo start HTTP server:")
+    print("  g4f mcp --http --port 8765")
+    print("\nHTTP endpoints:")
+    print("  POST http://localhost:8765/mcp - MCP JSON-RPC endpoint")
+    print("  GET  http://localhost:8765/health - Health check")
+    print("\nExample HTTP request:")
+    print('  curl -X POST http://localhost:8765/mcp \\')
+    print('    -H "Content-Type: application/json" \\')
+    print('    -d \'{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}\'')
+
+
+if __name__ == "__main__":
+    asyncio.run(test_http_server())