nostrdvm/nostr_dvm/tasks/discovery_censor_wot.py

import json
import os
from datetime import timedelta

from nostr_sdk import Client, Timestamp, PublicKey, Tag, Keys, Options, SecretKey, NostrSigner, Kind, RelayLimits, ClientBuilder

from nostr_dvm.interfaces.dvmtaskinterface import DVMTaskInterface, process_venv
from nostr_dvm.utils.admin_utils import AdminConfig
from nostr_dvm.utils.definitions import EventDefinitions, relay_timeout
from nostr_dvm.utils.dvmconfig import DVMConfig, build_default_config
from nostr_dvm.utils.nip88_utils import NIP88Config
from nostr_dvm.utils.nip89_utils import NIP89Config, check_and_set_d_tag
from nostr_dvm.utils.output_utils import post_process_list_to_users

"""
This File contains a Module to find inactive follows for a user on nostr

Accepted Inputs: None needed
Outputs: A list of users that have been inactive 
Params:  None
"""


class DiscoverReports(DVMTaskInterface):
    KIND: Kind = EventDefinitions.KIND_NIP90_PEOPLE_DISCOVERY
    TASK: str = "people to mute"
    FIX_COST: float = 0
    client: Client
    dvm_config: DVMConfig

    async def init_dvm(self, name, dvm_config: DVMConfig, nip89config: NIP89Config, nip88config: NIP88Config = None,
                       admin_config: AdminConfig = None, options=None):
        dvm_config.SCRIPT = os.path.abspath(__file__)

    async def is_input_supported(self, tags, client=None, dvm_config=None):
        return True

    async def create_request_from_nostr_event(self, event, client=None, dvm_config=None):
        self.dvm_config = dvm_config

        request_form = {"jobID": event.id().to_hex()}

        # default values
        users = []
        sender = event.author().to_hex()
        since_days = 90
        # users.append(event.author().to_hex())

        for tag in event.tags().to_vec():
            if tag.as_vec()[0] == 'i':
                users.append(tag.as_vec()[1])
            elif tag.as_vec()[0] == 'param':
                param = tag.as_vec()[1]
                if param == "since_days":  # check for param type
                    since_days = int(tag.as_vec()[2])
                if param == "user":  # check for param type
                    sender = tag.as_vec()[2]

        options = {
            "users": users,
            "sender": sender,
            "since_days": since_days,
        }
        request_form['options'] = json.dumps(options)
        return request_form

    async def process(self, request_form):
        from nostr_sdk import Filter
        from types import SimpleNamespace
        ns = SimpleNamespace()
        relaylimits = RelayLimits.disable()
        opts = (
            Options().relay_limits(relaylimits))
        sk = SecretKey.parse(self.dvm_config.PRIVATE_KEY)
        keys = Keys.parse(sk.to_hex())
        cli = ClientBuilder().signer(NostrSigner.keys(keys)).opts(opts).build()
        # cli.add_relay("wss://relay.nostr.band")
        for relay in self.dvm_config.RELAY_LIST:
            await cli.add_relay(relay)
        # add nostr band, too.
        await cli.add_relay("wss://nostr.band")

        await cli.connect()

        options = self.set_options(request_form)
        step = 20

        pubkeys = []
        for user in options["users"]:
            pubkeys.append(PublicKey.parse(user))

        # if we don't add users, e.g. by a wot, we check all our followers.
        if len(pubkeys) == 0:
            followers_filter = Filter().author(PublicKey.parse(options["sender"])).kind(Kind(3))
            followers = await cli.fetch_events(followers_filter, relay_timeout)

            if len(followers.to_vec()) > 0:
                result_list = []
                newest = 0
                best_entry = followers.to_vec()[0]
                for entry in followers.to_vec():
                    print(len(best_entry.tags().to_vec()))
                    print(best_entry.created_at().as_secs())
                    if entry.created_at().as_secs() > newest:
                        newest = entry.created_at().as_secs()
                        best_entry = entry
                for tag in best_entry.tags().to_vec():
                    if tag.as_vec()[0] == "p":
                        following = PublicKey.parse(tag.as_vec()[1])
                        pubkeys.append(following)

        ago = Timestamp.now().as_secs() - 60 * 60 * 24 * int(
            options["since_days"])  # TODO make this an option, 180 days for now
        since = Timestamp.from_secs(ago)
        kind1984_filter = Filter().authors(pubkeys).kind(Kind(1984)).since(since)
        reports = await cli.fetch_events(kind1984_filter, relay_timeout)

        bad_actors = []
        ns.dic = {}
        reasons = ["spam", "illegal", "impersonation"]
        # init
        for report in reports.to_vec():
            for tag in report.tags().to_vec():
                if tag.as_vec()[0] == "p":
                    ns.dic[tag.as_vec()[1]] = 0

        for report in reports.to_vec():
            # print(report.as_json())
            for tag in report.tags().to_vec():
                if tag.as_vec()[0] == "p":
                    if len(tag.as_vec()) > 2 and tag.as_vec()[2] in reasons or len(tag.as_vec()) <= 2:
                        ns.dic[tag.as_vec()[1]] += 1

        # print(ns.dic.items())
        # result = {k for (k, v) in ns.dic.items() if v > 0}
        # result = sorted(ns.dic.items(), key=lambda x: x[1], reverse=True)
        finallist_sorted = sorted(ns.dic.items(), key=lambda x: x[1], reverse=True)
        converted_dict = dict(finallist_sorted)
        print(json.dumps(converted_dict))
        for k, v in converted_dict.items():
            print(k)
            try:
                p_tag = Tag.parse(["p", k, str(v)])
                bad_actors.append(p_tag.as_vec())
            except Exception as e:
                print(e)

        print(json.dumps(bad_actors))
        await cli.shutdown()
        return json.dumps(bad_actors)

    async def post_process(self, result, event):
        """Overwrite the interface function to return a social client readable format, if requested"""
        for tag in event.tags().to_vec():
            if tag.as_vec()[0] == 'output':
                format = tag.as_vec()[1]
                if format == "text/plain":  # check for output type
                    result = post_process_list_to_users(result)

        # if not text/plain, don't post-process
        return result


# We build an example here that we can call by either calling this file directly from the main directory,
# or by adding it to our playground. You can call the example and adjust it to your needs or redefine it in the
# playground or elsewhere
def build_example(name, identifier, admin_config):
    dvm_config = build_default_config(identifier)
    dvm_config.USE_OWN_VENV = False
    admin_config.LUD16 = dvm_config.LN_ADDRESS
    # Add NIP89
    nip89info = {
        "name": name,
        "picture": "https://image.nostr.build/19872a2edd866258fa9eab137631efda89310d52b2c6ea8f99ef057325aa1c7b.jpg",
        "about": "I show users that have been reported by either your followers or your Web of Trust. Note: Anyone can report, so you might double check and decide for yourself who to mute. Considers spam, illegal and impersonation reports. Notice: This works with NIP51 mute lists. Not all clients support the new mute list format.",
        "supportsEncryption": True,
        "acceptsNutZaps": dvm_config.ENABLE_NUTZAP,
        "action": "mute",  # follow, unfollow, mute, unmute
        "nip90Params": {
            "since_days": {
                "required": False,
                "values": [],
                "description": "The number of days a report is ago in order to be considered "
            }
        }
    }
    nip89config = NIP89Config()
    nip89config.DTAG = check_and_set_d_tag(identifier, name, dvm_config.PRIVATE_KEY, nip89info["picture"])
    nip89config.CONTENT = json.dumps(nip89info)

    return DiscoverReports(name=name, dvm_config=dvm_config, nip89config=nip89config,
                           admin_config=admin_config)


if __name__ == '__main__':
    process_venv(DiscoverReports)