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✎ Editing: infected_domain.py ← Back

import itertools
import logging
import time

from peewee import (
    CharField,
    FloatField,
    IntegerField,
    TextField,
)

from defence360agent.model import instance, Model

logger = logging.getLogger(__name__)

class InfectedDomainList(Model):
    """Domains with bad reputation, used for Reputation Management feature."""

id = IntegerField(primary_key=True)
    #: Username associated with the domain in hosting panel.
    username = CharField(null=True)
    #: Domain name.
    name = CharField(null=False)
    #: The kind of threat reported by reputation engine,
    #: e.g. "SOCIAL_ENGINEERING".
    threat_type = CharField(null=False)
    #: The time when Imunify first detected that the domain has bad reputation.
    timestamp = FloatField()
    #: The name of the reputation engine, e.g. "google-safe-browsing".
    vendor = TextField(null=True)

class Meta:
        database = instance.db
        db_table = "infected_domain_list"

@classmethod
    def get_by_user(cls, existing_users, offset=0, limit=50):
        # to be able to filter query results using existing_users,
        # limit/offset os applied on python side
        query = cls.select().order_by(
            cls.username, cls.name, cls.timestamp.desc()
        )
        filtered_by_user = (
            row for row in query.dicts() if row["username"] in existing_users
        )
        grouped = itertools.groupby(
            filtered_by_user, key=lambda row: (row["username"], row["name"])
        )

max_count = 0
        result = []
        for i, value in enumerate(grouped):
            max_count += 1
            if (len(result) < limit) and (i >= offset):
                group, threats = value
                username, name = group
                result.append(
                    {
                        "username": username,
                        "domain": name,
                        "threats": [
                            {
                                "type": t["threat_type"],
                                "vendor": t["vendor"],
                                "timestamp": t["timestamp"],
                            }
                            for t in threats
                        ],
                    }
                )
        return result, max_count

@classmethod
    def refresh_domains(cls, domains, domains_to_users):
        """
        Update domain reputatuion info. If threat info already exists, do not
        update timestamp

:param domains: reputation data from server
        :param domains_to_users: domain -> users mapping from hosting panel
        :return:
        """
        existing = {
            (r["name"], r["threat_type"], r["vendor"]): r["timestamp"]
            for r in cls.select().dicts()
        }
        with instance.db.atomic():
            cls.delete().execute()
            now = time.time()
            for domain_info in domains:
                domain = domain_info["query"]
                if domain not in domains_to_users:
                    logger.warning("Users for domain %s not found.", domain)
                    continue
                for user in domains_to_users[domain]:
                    vendor = domain_info["vendor"]
                    if vendor in (
                        "google-safe-browsing",
                        "yandex-safe-browsing",
                    ):
                        threat_type = domain_info["details"]["threat_type"]
                    elif vendor == "spamhaus":
                        threat_type = domain_info["details"]
                    elif vendor in ("phishtank", "openphish"):
                        # https://cloudlinux.atlassian.net/wiki/spaces/IPT/pages/929759302/4.1+Multiple+vendors+in+Reputation+Management+ver.4.2 # noqa: E501
                        threat_type = "spam domain"
                    else:
                        threat_type = "THREAT_TYPE_UNSPECIFIED"
                    timestamp = existing.get(
                        (domain, threat_type, vendor), now
                    )
                    cls.create(
                        username=user,
                        name=domain,
                        threat_type=threat_type,
                        vendor=vendor,
                        timestamp=timestamp,
                    )

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