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244 lines
8.2 KiB
Python
244 lines
8.2 KiB
Python
import logging
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from datetime import datetime, timedelta
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from time import sleep
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import geoip2.database
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import arrow
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import requests
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import click
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from flask import Blueprint
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from urllib.parse import urlparse
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from xmrnodes.helpers import determine_crypto, is_onion, is_i2p, make_request
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from xmrnodes.helpers import retrieve_peers, rw_cache, get_highest_block
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from xmrnodes.models import Node, HealthCheck, Peer
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from xmrnodes import config
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bp = Blueprint("cli", "cli", cli_group=None)
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@bp.cli.command("init")
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def init():
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pass
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@bp.cli.command("check")
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def check_nodes():
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diff = datetime.utcnow() - timedelta(hours=72)
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checks = HealthCheck.select().where(HealthCheck.datetime <= diff)
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for check in checks:
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print("Deleting check", check.id)
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check.delete_instance()
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nodes = Node.select().where(Node.validated == True)
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for node in nodes:
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try:
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check_node(node.url)
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except KeyboardInterrupt:
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exit()
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def check_node(_node):
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if _node.startswith("http"):
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node = Node.select().where(Node.url == _node).first()
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else:
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node = Node.select().where(Node.id == _node).first()
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if not node:
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print('node found')
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pass
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now = datetime.utcnow()
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hc = HealthCheck(node=node)
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logging.info(f"Attempting to check {node.url}")
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try:
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r = make_request(node.url)
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assert "status" in r.json()
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assert "offline" in r.json()
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assert "height" in r.json()
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if 'donation_address' in r.json():
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node.donation_address = r.json()['donation_address']
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has_cors = "Access-Control-Allow-Origin" in r.headers
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is_ssl = node.url.startswith("https://")
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if r.json()["status"] == "OK":
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node.web_compatible = has_cors and is_ssl
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node.last_height = r.json()["height"]
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hc.health = True
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highest_block = get_highest_block(node.nettype, node.crypto)
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healthy_block = highest_block - config.HEALTHY_BLOCK_DIFF
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if r.json()["height"] < healthy_block:
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node.available = False
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logging.info("unhealthy")
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else:
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node.available = True
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logging.info("success")
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else:
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raise
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except:
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logging.info("fail")
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node.datetime_failed = now
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node.available = False
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hc.health = False
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finally:
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node.datetime_checked = now
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node.save()
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hc.save()
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if (
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node.get_failed_checks().count() == node.get_all_checks().count()
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and node.get_all_checks().count() > 5
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):
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print("this node fails all of its health checks - deleting it!")
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for _hc in node.get_all_checks():
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_hc.delete_instance()
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node.delete_instance()
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@bp.cli.command("get_peers")
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def get_peers():
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"""
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This command requests peers from the configured upstream node and fans out
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to recursively scrape all other peers on the network. This will take
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several hours to run.
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"""
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# keep track of all peers
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all_peers = []
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print("[+] Preparing to crawl Monero p2p network")
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print(f"[.] Retrieving initial peers from {config.NODE_HOST}:{config.NODE_PORT}")
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# start initial list of peers to scan
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peers_to_scan = retrieve_peers(config.NODE_HOST, config.NODE_PORT)
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print(f"[+] Found {len(peers_to_scan)} initial peers to begin scraping.")
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sleep(3)
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# helper function to add a new peer to the db or update an existing one
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def save_peer(peer):
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with geoip2.database.Reader("./data/GeoLite2-City.mmdb") as reader:
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_url = urlparse(peer)
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url = f"{_url.scheme}://{_url.netloc}".lower()
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# add new peer if not in db
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if not Peer.select().where(Peer.url == peer).exists():
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response = reader.city(_url.hostname)
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p = Peer(
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url=peer,
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country=response.country.name,
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city=response.city.name,
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postal=response.postal.code,
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lat=response.location.latitude,
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lon=response.location.longitude,
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)
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p.save()
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print(f"{peer} - saving new peer")
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# or update if it does
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else:
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p = Peer.select().where(Peer.url == peer).first()
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p.datetime = datetime.now()
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p.save()
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return _url
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# iterate over the whole list until all peers have been scanned
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# add new peers to the list
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# skip the peer if we've seen it already
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try:
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while peers_to_scan:
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_peer = peers_to_scan[0]
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peers_to_scan.pop(0)
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if _peer in all_peers:
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print(f'already found {_peer}')
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continue
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all_peers.append(_peer)
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try:
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peer = save_peer(_peer)
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peers_to_scan += retrieve_peers(peer.hostname, peer.port)
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except:
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pass
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except KeyboardInterrupt:
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print('Stopped.')
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print(
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f"[+] Found {len(all_peers)} peers from {config.NODE_HOST}:{config.NODE_PORT}"
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)
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print("[+] Deleting old Monero p2p peers")
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for p in Peer.select():
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if p.hours_elapsed() > config.PEER_LIFETIME:
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print(f"[.] Deleting {p.url}")
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p.delete_instance()
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rw_cache("map_peers", list(Peer.select().execute()))
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@bp.cli.command("validate")
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def validate():
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nodes = Node.select().where(Node.validated == False)
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for node in nodes:
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now = datetime.utcnow()
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logging.info(f"Attempting to validate {node.url}")
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try:
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r = make_request(node.url)
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assert "height" in r.json()
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assert "nettype" in r.json()
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has_cors = "Access-Control-Allow-Origin" in r.headers
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is_ssl = node.url.startswith("https://")
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nettype = r.json()["nettype"]
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crypto = determine_crypto(node.url)
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logging.info("success")
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if nettype in ["mainnet", "stagenet", "testnet"]:
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node.nettype = nettype
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node.available = True
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node.validated = True
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node.web_compatible = has_cors and is_ssl
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node.last_height = r.json()["height"]
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node.datetime_checked = now
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node.crypto = crypto
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node.is_tor = is_onion(node.url)
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node.is_i2p = is_i2p(node.url)
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node.save()
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else:
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logging.info("unexpected nettype")
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except requests.exceptions.ConnectTimeout:
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logging.info("connection timed out")
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node.delete_instance()
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except requests.exceptions.SSLError:
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logging.info("invalid certificate")
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node.delete_instance()
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except requests.exceptions.ConnectionError:
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logging.info("connection error")
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node.delete_instance()
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except requests.exceptions.HTTPError:
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logging.info("http error, 4xx or 5xx")
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node.delete_instance()
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except Exception as e:
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logging.info("failed for reasons unknown")
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node.delete_instance()
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@bp.cli.command("export")
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def export():
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all_nodes = []
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ts = int(arrow.get().timestamp())
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export_dir = f"{config.DATA_DIR}/export.txt"
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export_dir_stamped = f"{config.DATA_DIR}/export-{ts}.txt"
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nodes = Node.select().where(Node.validated == True)
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for node in nodes:
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logging.info(f"Adding {node.url}")
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all_nodes.append(node.url)
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with open(export_dir, "w") as f:
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f.write("\n".join(all_nodes))
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with open(export_dir_stamped, "w") as f:
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f.write("\n".join(all_nodes))
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logging.info(
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f"{nodes.count()} nodes written to {export_dir} and {export_dir_stamped}"
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)
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@bp.cli.command("import")
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def import_():
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all_nodes = []
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export_dir = f"{config.DATA_DIR}/export.txt"
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with open(export_dir, "r") as f:
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for url in f.readlines():
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try:
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n = url.rstrip().lower()
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logging.info(f"Adding {n}")
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node = Node(url=n)
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node.save()
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all_nodes.append(n)
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except:
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pass
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logging.info(f"{len(all_nodes)} node urls imported and ready to be validated")
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