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from langchain.tools import tool
# import pymisp
from pymisp import PyMISP
from dotenv import load_dotenv
import os
load_dotenv(override=True)
URL = os.getenv('MISP_URL')
KEY = os.getenv('MISP_KEY')
verify_cert = False
print(URL, KEY)
misp = PyMISP(url=URL, key=KEY, ssl=verify_cert)
class MispTool():
@tool("MISP search Tool by keyword")
def search(keyword: str):
"""Useful tool to search for an indicator of compromise or an security event by keyword
Parameters:
- keyword: The keyword to search for
Returns:
- A list of events that match the keyword
"""
events = misp.search(controller='attributes', value=keyword, limit=5, metadata=True, include_event_tags=False, include_context=False, return_format='json', sg_reference_only=True)
if len(events['Attribute']) == 0:
return "No events found matching the search criteria."
results = """Answer user question using these search results:\n\n"""
return results + str(events)
@tool("MISP search Tool by date")
def search_by_date(date_from: str = None, date_to: str = None):
"""Useful tool to retrieve events that match a specific date or date range, use this if you know the date of the event
Parameters:
- date_from: The start date of the event
- date_to: The end date of the event
Not necessary to provide both dates, you can provide one or the other
Returns:
- A list of events that match the date or date range
"""
events = misp.search(controller='attributes',date_from=date_from, date_to=date_to, limit=5)
return events
@tool("MISP search Tool by event_id")
def search_by_event_id(event_id: str | int):
"""Useful tool to retrieve events by their ID, use this if you know the ID of the event.
Parameters:
- event_id: The ID of the event
Returns:
- A list of events that match the event ID
"""
events = misp.search(controller='attributes', eventid=event_id, limit=1)
return events
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