Files
cavepediav2/mcp/server.py
2025-12-08 19:02:12 +01:00

81 lines
2.4 KiB
Python

from fastmcp import FastMCP
from fastmcp.server.dependencies import get_http_headers
from psycopg.rows import dict_row
import cohere
import dotenv
import psycopg
import os
import json
dotenv.load_dotenv('/home/pew/scripts-private/loser/cavepedia-v2/poller.env')
COHERE_API_KEY = os.getenv('COHERE_API_KEY')
co = cohere.ClientV2(COHERE_API_KEY)
conn = psycopg.connect(
host='::1',
port=9030,
dbname='cavepediav2_db',
user='cavepediav2_user',
password='cavepediav2_pw',
row_factory=dict_row,
)
mcp = FastMCP("Cavepedia MCP")
def get_user_roles() -> list[str]:
"""Extract user roles from the X-User-Roles header."""
headers = get_http_headers()
print(f"[MCP] All headers: {dict(headers)}")
roles_header = headers.get("x-user-roles", "")
print(f"[MCP] X-User-Roles header: {roles_header}")
if roles_header:
try:
return json.loads(roles_header)
except json.JSONDecodeError:
return []
return []
def embed(text, input_type):
resp = co.embed(
texts=[text],
model='embed-v4.0',
input_type=input_type,
embedding_types=['float'],
)
return resp.embeddings.float[0]
def search(query) -> list[dict]:
query_embedding = embed(query, 'search_query')
rows = conn.execute('SELECT * FROM embeddings WHERE embedding IS NOT NULL ORDER BY embedding <=> %s::vector LIMIT 5', (query_embedding,)).fetchall()
docs = []
for row in rows:
docs.append({ 'key': row['key'], 'content': row['content']})
return docs
@mcp.tool
def get_cave_location(cave: str, state: str, county: str) -> list[dict]:
"""Lookup cave location as coordinates. Returns up to 5 matches, ordered by most to least relevant."""
roles = get_user_roles()
print(f"get_cave_location called with roles: {roles}")
return search(f'{cave} Location, latitude, Longitude. Located in {state} and {county} county.')
@mcp.tool
def general_caving_information(query: str) -> list[dict]:
"""General purpose endpoint for any topic related to caves. Returns up to 5 matches, ordered by most to least relevant."""
roles = get_user_roles()
print(f"general_caving_information called with roles: {roles}")
return search(query)
@mcp.tool
def get_user_info() -> dict:
"""Get information about the current user's roles."""
roles = get_user_roles()
return {
"roles": roles,
}
if __name__ == "__main__":
mcp.run(transport='http', host='::1', port=9031)