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@ ever4st
2025-02-01 21:51:44
List of Wordpress articles:
- https://alashazam.wordpress.com/2024/07/01/python-nostr/
- https://alashazam.wordpress.com/2024/07/02/python-nostr-2/
- https://alashazam.wordpress.com/2024/07/03/python-nostr-second-program/
- https://alashazam.wordpress.com/2024/07/04/python-nostr-sdk/
- https://alashazam.wordpress.com/2024/07/04/python-nostr-third-program/
- https://alashazam.wordpress.com/2024/07/05/python-nostr-guessing-the-npub/
- https://alashazam.wordpress.com/2024/07/06/python-nostr_sdk-fetching-metadata/
- https://alashazam.wordpress.com/tag/python/
-----------
```python
#!/usr/bin/env python3
"""
Fetches the joined date from a Nostr profile and calculates the days since account creation.
Usage:
python fetch_joined_date.py [npub]
Arguments:
npub : The public key of the user (in npub format).
Requirements:
- nostr_sdk library
- Python 3.x
Example:
python fetch_joined_date.py npub1...
"""
import argparse
import time
import ssl
import json
import uuid
import logging
from datetime import datetime
from nostr.event import EventKind
from nostr.relay_manager import RelayManager
from nostr.key import PublicKey
from nostr.filter import Filter, Filters
from nostr.message_type import ClientMessageType
# Configure logging
logging.basicConfig(level=logging.INFO, format="%(levelname)s: %(message)s")
RELAY_URL = "wss://relay.damus.io"
def fetch_metadata(npub):
"""Fetches metadata from a Nostr profile given an npub key."""
pub_key = PublicKey.from_npub(npub)
filters = Filters([Filter(authors=[pub_key.hex()], kinds=[EventKind.SET_METADATA])])
subscription_id = uuid.uuid1().hex
request = [ClientMessageType.REQUEST, subscription_id, *filters.to_json_array()]
relay_manager = RelayManager()
relay_manager.add_relay(RELAY_URL)
relay_manager.add_subscription(subscription_id, filters)
try:
relay_manager.open_connections({"cert_reqs": ssl.CERT_NONE})
time.sleep(1) # Allow time for connection
relay_manager.publish_message(json.dumps(request))
time.sleep(1) # Allow time for response
while relay_manager.message_pool.has_events():
event_msg = relay_manager.message_pool.get_event()
metadata = json.loads(event_msg.event.content)
return metadata
except Exception as e:
logging.error(f"Error fetching metadata: {e}")
finally:
relay_manager.close_connections()
return None
def fetch_joined_date(npub):
"""Retrieves the joined date of a Nostr profile and calculates days since creation."""
metadata = fetch_metadata(npub)
if not metadata or "created_at" not in metadata:
logging.warning("Could not retrieve metadata or 'created_at' field is missing.")
return
try:
created_at = int(metadata["created_at"])
created_date = datetime.utcfromtimestamp(created_at)
days_since_creation = (datetime.utcnow() - created_date).days
logging.info(f"Account created on: {created_date.strftime('%Y-%m-%d %H:%M:%S UTC')}")
logging.info(f"Days since account creation: {days_since_creation}")
except (ValueError, TypeError):
logging.error("Invalid 'created_at' timestamp.")
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Fetch the joined date from a Nostr profile.")
parser.add_argument("npub", type=str, help="The public key of the user (in npub format).")
args = parser.parse_args()
fetch_joined_date(args.npub)
```