import json import os from datetime import timedelta from itertools import islice from nostr_sdk import Timestamp, Tag, Keys, Options, SecretKey, NostrSigner, NostrDatabase, \ ClientBuilder, Filter, SyncOptions, SyncDirection, Kind, PublicKey, RelayFilteringMode, RelayLimits from nostr_dvm.interfaces.dvmtaskinterface import DVMTaskInterface, process_venv from nostr_dvm.utils.admin_utils import AdminConfig from nostr_dvm.utils.definitions import EventDefinitions 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 from nostr_dvm.utils.wot_utils import build_wot_network """ This File contains a Module to search for notes Accepted Inputs: a search query Outputs: A list of events Params: None """ class SearchUser(DVMTaskInterface): KIND: Kind = EventDefinitions.KIND_NIP90_USER_SEARCH TASK: str = "search-user" FIX_COST: float = 0 dvm_config: DVMConfig last_schedule: int = 0 db_name = "db/nostr_profiles.db" wot_counter = 0 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__) if self.dvm_config.UPDATE_DATABASE: await self.sync_db() async def is_input_supported(self, tags, client=None, dvm_config=None): for tag in tags: if tag.as_vec()[0] == 'i': input_value = tag.as_vec()[1] input_type = tag.as_vec()[2] if input_type != "text": return False return True async def create_request_from_nostr_event(self, event, client=None, dvm_config=None): self.dvm_config = dvm_config #print(self.dvm_config.PRIVATE_KEY) request_form = {"jobID": event.id().to_hex()} # default values search = "" max_results = 100 for tag in event.tags().to_vec(): if tag.as_vec()[0] == 'i': input_type = tag.as_vec()[2] if input_type == "text": search = tag.as_vec()[1] elif tag.as_vec()[0] == 'param': param = tag.as_vec()[1] if param == "max_results": # check for param type max_results = int(tag.as_vec()[2]) options = { "search": search, "max_results": max_results, } request_form['options'] = json.dumps(options) return request_form async def process(self, request_form): from nostr_sdk import Filter options = self.set_options(request_form) sk = SecretKey.from_hex(self.dvm_config.PRIVATE_KEY) keys = Keys.parse(sk.to_hex()) database = NostrDatabase.lmdb(self.db_name) cli = ClientBuilder().database(database).signer(NostrSigner.keys(keys)).build() for relay in self.dvm_config.SYNC_DB_RELAY_LIST: await cli.add_relay(relay) # cli.add_relay("wss://atl.purplerelay.com") await cli.connect() # Negentropy reconciliation # Query events from database filter1 = Filter().kind(Kind(0)) events = await cli.database().query([filter1]) result_list = [] print("Events: " + str(len(events.to_vec()))) index = 0 if len(events.to_vec()) > 0: for event in events.to_vec(): if index < options["max_results"]: try: searchterm = " " + options["search"].lower() + " " if options["search"].lower() in event.content().lower(): p_tag = Tag.parse(["p", event.author().to_hex()]) #print(event.as_json()) result_list.append(p_tag.as_vec()) index += 1 except Exception as exp: print(str(exp) + " " + event.author().to_hex()) else: break await cli.shutdown() return json.dumps(result_list) 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 async def schedule(self, dvm_config): if dvm_config.SCHEDULE_UPDATES_SECONDS == 0: return 0 else: if Timestamp.now().as_secs() >= self.last_schedule + dvm_config.SCHEDULE_UPDATES_SECONDS: if self.dvm_config.UPDATE_DATABASE: await self.sync_db() self.last_schedule = Timestamp.now().as_secs() return 1 async def sync_db(self): sk = SecretKey.from_hex(self.dvm_config.PRIVATE_KEY) keys = Keys.parse(sk.to_hex()) database = NostrDatabase.lmdb(self.db_name) relaylimits = RelayLimits.disable() opts = (Options().relay_limits(relaylimits)) if self.dvm_config.WOT_FILTERING: opts = opts.filtering_mode(RelayFilteringMode.WHITELIST) cli = ClientBuilder().signer(NostrSigner.keys(keys)).database(database).opts(opts).build() for relay in self.dvm_config.SYNC_DB_RELAY_LIST: await cli.add_relay(relay) await cli.connect() if self.dvm_config.WOT_FILTERING and self.wot_counter == 0: print("Calculating WOT for " + str(self.dvm_config.WOT_BASED_ON_NPUBS)) filtering = cli.filtering() index_map, G = await build_wot_network(self.dvm_config.WOT_BASED_ON_NPUBS, depth=self.dvm_config.WOT_DEPTH, max_batch=500, max_time_request=10, dvm_config=self.dvm_config) # Do we actually need pagerank here? # print('computing global pagerank...') # tic = time.time() # p_G = nx.pagerank(G, tol=1e-12) # print("network after pagerank: " + str(len(p_G))) wot_keys = [] for item in islice(G, len(G)): key = next((PublicKey.parse(pubkey) for pubkey, id in index_map.items() if id == item), None) wot_keys.append(key) # toc = time.time() # print(f'finished in {toc - tic} seconds') await filtering.add_public_keys(wot_keys) self.wot_counter += 1 # only calculate wot every 10th call if self.wot_counter >= 10: self.wot_counter = 0 filter1 = Filter().kind(Kind(0)) # filter = Filter().author(keys.public_key()) print("Syncing Profile Database.. this might take a while..") try: dbopts = SyncOptions().direction(SyncDirection.DOWN) await cli.sync(filter1, dbopts) print("Done Syncing Profile Database.") except Exception as exp: print(str(exp)) await cli.shutdown() # 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 dvm_config.SHOWLOG = True dvm_config.SCHEDULE_UPDATES_SECONDS = 600 # Every 10 seconds # Add NIP89 nip89info = { "name": name, "picture": "https://image.nostr.build/a99ab925084029d9468fef8330ff3d9be2cf67da473b024f2a6d48b5cd77197f.jpg", "about": "I search users.", "supportsEncryption": True, "acceptsNutZaps": False, "nip90Params": { "users": { "required": False, "values": [], "description": "Search for content from specific users" }, "since": { "required": False, "values": [], "description": "A unix timestamp in the past from where the search should start" }, "until": { "required": False, "values": [], "description": "A unix timestamp that tells until the search should include results" }, "max_results": { "required": False, "values": [], "description": "The number of maximum results to return (default currently 20)" } } } nip89config = NIP89Config() nip89config.DTAG = check_and_set_d_tag(identifier, name, dvm_config.PRIVATE_KEY, nip89info["picture"]) nip89config.CONTENT = json.dumps(nip89info) return SearchUser(name=name, dvm_config=dvm_config, nip89config=nip89config, admin_config=admin_config) if __name__ == '__main__': process_venv(SearchUser)