YueGuobin cad216705a
feat: add Node and Link MCP tools, update copyright
- Add 9 node tools and 5 link tools
- Update copyright year to 2026, add author
2026-06-04 23:19:00 +08:00

268 lines
11 KiB
Python

#
# Copyright (C) 2026 GNS3 Technologies Inc.
# Author: Yue Guobin
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
MCP tool handlers for GNS3 node management.
Handlers receive (params, gns3_ctx) and call GNS3's REST API
via Gns3Connector (from custom_gns3fy).
"""
from typing import Any
import logging
log = logging.getLogger(__name__)
# ── Helper ─────────────────────────────────────────────────────────────────
def _get_connector(gns3_ctx: dict[str, Any]):
from gns3server.agent.gns3_copilot.gns3_client.custom_gns3fy import Gns3Connector
return Gns3Connector(
url=gns3_ctx["server_url"],
jwt_token=gns3_ctx["jwt_token"],
api_version=3,
verify=False,
)
# ── Tool handlers ──────────────────────────────────────────────────────────
def get_nodes_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
if not project_id:
return {"error": "project_id is required"}
conn = _get_connector(gns3_ctx)
nodes = conn.get_nodes(project_id=project_id)
return {"nodes": nodes, "count": len(nodes)}
def get_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
node_id = params.get("node_id")
if not project_id or not node_id:
return {"error": "project_id and node_id are required"}
conn = _get_connector(gns3_ctx)
return conn.get_node(project_id=project_id, node_id=node_id)
def start_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
node_id = params.get("node_id")
if not project_id or not node_id:
return {"error": "project_id and node_id are required"}
conn = _get_connector(gns3_ctx)
conn.http_call("post", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}/start", json_data={})
return {"message": f"Node {node_id} started", "node_id": node_id}
def stop_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
node_id = params.get("node_id")
if not project_id or not node_id:
return {"error": "project_id and node_id are required"}
conn = _get_connector(gns3_ctx)
conn.http_call("post", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}/stop", json_data={})
return {"message": f"Node {node_id} stopped", "node_id": node_id}
def reload_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
node_id = params.get("node_id")
if not project_id or not node_id:
return {"error": "project_id and node_id are required"}
conn = _get_connector(gns3_ctx)
conn.http_call("post", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}/reload")
return {"message": f"Node {node_id} reloaded", "node_id": node_id}
def suspend_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
node_id = params.get("node_id")
if not project_id or not node_id:
return {"error": "project_id and node_id are required"}
conn = _get_connector(gns3_ctx)
conn.http_call("post", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}/suspend")
return {"message": f"Node {node_id} suspended", "node_id": node_id}
def create_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
template_id = params.get("template_id")
if not project_id or not template_id:
return {"error": "project_id and template_id are required"}
conn = _get_connector(gns3_ctx)
data = {
"x": params.get("x", 0),
"y": params.get("y", 0),
"compute_id": params.get("compute_id", "local"),
}
url = f"{conn.base_url}/projects/{project_id}/templates/{template_id}"
return conn.http_call("post", url, json_data=data).json()
def delete_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
node_id = params.get("node_id")
if not project_id or not node_id:
return {"error": "project_id and node_id are required"}
conn = _get_connector(gns3_ctx)
conn.http_call("delete", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}")
return {"message": f"Node {node_id} deleted", "node_id": node_id}
def update_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
project_id = params.get("project_id")
node_id = params.get("node_id")
if not project_id or not node_id:
return {"error": "project_id and node_id are required"}
conn = _get_connector(gns3_ctx)
# Pass all params except project_id/node_id as update fields
update_data = {k: v for k, v in params.items() if k not in ("project_id", "node_id")}
url = f"{conn.base_url}/projects/{project_id}/nodes/{node_id}"
return conn.http_call("put", url, json_data=update_data).json()
# ── Tool definitions ───────────────────────────────────────────────────────
NODE_TOOLS = [
{
"name": "get_nodes",
"description": "List all nodes in a project",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
},
"required": ["project_id"],
},
"handler": get_nodes_handler,
},
{
"name": "get_node",
"description": "Get detailed information about a specific node",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
"node_id": {"type": "string", "description": "Node UUID"},
},
"required": ["project_id", "node_id"],
},
"handler": get_node_handler,
},
{
"name": "start_node",
"description": "Start a node in a project",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
"node_id": {"type": "string", "description": "Node UUID"},
},
"required": ["project_id", "node_id"],
},
"handler": start_node_handler,
},
{
"name": "stop_node",
"description": "Stop a node in a project",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
"node_id": {"type": "string", "description": "Node UUID"},
},
"required": ["project_id", "node_id"],
},
"handler": stop_node_handler,
},
{
"name": "reload_node",
"description": "Reload (restart) a node in a project",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
"node_id": {"type": "string", "description": "Node UUID"},
},
"required": ["project_id", "node_id"],
},
"handler": reload_node_handler,
},
{
"name": "suspend_node",
"description": "Suspend a node in a project",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
"node_id": {"type": "string", "description": "Node UUID"},
},
"required": ["project_id", "node_id"],
},
"handler": suspend_node_handler,
},
{
"name": "create_node",
"description": "Create a new node from a template in a project",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
"template_id": {"type": "string", "description": "Template UUID"},
"x": {"type": "integer", "description": "X coordinate (optional)"},
"y": {"type": "integer", "description": "Y coordinate (optional)"},
"compute_id": {"type": "string", "description": "Compute ID (optional, default: local)"},
},
"required": ["project_id", "template_id"],
},
"handler": create_node_handler,
},
{
"name": "delete_node",
"description": "Delete a node from a project",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
"node_id": {"type": "string", "description": "Node UUID"},
},
"required": ["project_id", "node_id"],
},
"handler": delete_node_handler,
},
{
"name": "update_node",
"description": "Update a node's properties (name, position, etc.)",
"parameters": {
"type": "object",
"properties": {
"project_id": {"type": "string", "description": "Project UUID"},
"node_id": {"type": "string", "description": "Node UUID"},
"name": {"type": "string", "description": "New node name (optional)"},
"x": {"type": "integer", "description": "New X position (optional)"},
"y": {"type": "integer", "description": "New Y position (optional)"},
"compute_id": {"type": "string", "description": "Compute ID (optional)"},
},
"required": ["project_id", "node_id"],
},
"handler": update_node_handler,
},
]