import json from nostr_sdk import PublicKey, Keys, Client, Tag, Event, EventBuilder, Filter, HandleNotification, Timestamp, \ init_logger, LogLevel, nip04_decrypt import time from utils.definitions import EventDefinitions, RequiredJobToWatch, JobToWatch from utils.dvmconfig import DVMConfig from utils.admin_utils import admin_make_database_updates, AdminConfig from utils.backend_utils import get_amount_per_task, check_task_is_supported, get_task from utils.database_utils import update_sql_table, get_from_sql_table, \ create_sql_table, get_or_add_user, update_user_balance from utils.nostr_utils import get_event_by_id, get_referenced_event_by_id, send_event from utils.output_utils import post_process_result, build_status_reaction from utils.zap_utils import check_bolt11_ln_bits_is_paid, parse_amount_from_bolt11_invoice, \ check_for_zapplepay, decrypt_private_zap_message, create_bolt11_ln_bits use_logger = False if use_logger: init_logger(LogLevel.DEBUG) class DVM: dvm_config: DVMConfig admin_config: AdminConfig keys: Keys client: Client job_list: list jobs_on_hold_list: list def __init__(self, dvmconfig, adminconfig = None): self.dvm_config = dvmconfig self.admin_config = adminconfig self.keys = Keys.from_sk_str(dvmconfig.PRIVATE_KEY) self.client = Client(self.keys) self.job_list = [] self.jobs_on_hold_list = [] pk = self.keys.public_key() print("Nostr DVM public key: " + str(pk.to_bech32()) + " Hex: " + str(pk.to_hex()) + " Supported DVM tasks: " + ', '.join(p.NAME + ":" + p.TASK for p in self.dvm_config.SUPPORTED_TASKS) + "\n") for relay in self.dvm_config.RELAY_LIST: self.client.add_relay(relay) self.client.connect() zap_filter = Filter().pubkey(pk).kinds([EventDefinitions.KIND_ZAP]).since(Timestamp.now()) bot_dm_filter = Filter().pubkey(pk).kinds([EventDefinitions.KIND_DM]).authors(self.dvm_config.DM_ALLOWED).since(Timestamp.now()) #TODO only from allowed account kinds = [EventDefinitions.KIND_NIP90_GENERIC] for dvm in self.dvm_config.SUPPORTED_TASKS: if dvm.KIND not in kinds: kinds.append(dvm.KIND) dvm_filter = (Filter().kinds(kinds).since(Timestamp.now())) self.client.subscribe([dvm_filter, zap_filter, bot_dm_filter]) create_sql_table(self.dvm_config.DB) admin_make_database_updates(adminconfig=self.admin_config, dvmconfig=self.dvm_config, client=self.client) class NotificationHandler(HandleNotification): client = self.client dvm_config = self.dvm_config keys = self.keys def handle(self, relay_url, nostr_event): if EventDefinitions.KIND_NIP90_EXTRACT_TEXT <= nostr_event.kind() <= EventDefinitions.KIND_NIP90_GENERIC: print("[" + self.dvm_config.NIP89.name + "] " + f"Received new NIP90 Job Request from {relay_url}: {nostr_event.as_json()}") handle_nip90_job_event(nostr_event) elif nostr_event.kind() == EventDefinitions.KIND_ZAP: handle_zap(nostr_event) elif nostr_event.kind() == EventDefinitions.KIND_DM: handle_dm(nostr_event) def handle_msg(self, relay_url, msg): return def handle_nip90_job_event(nip90_event): user = get_or_add_user(self.dvm_config.DB, nip90_event.pubkey().to_hex(), client=self.client) task_supported, task, duration = check_task_is_supported(nip90_event, client=self.client, get_duration=(not user.iswhitelisted), config=self.dvm_config) if user.isblacklisted: send_job_status_reaction(nip90_event, "error", client=self.client, dvm_config=self.dvm_config) print("[" + self.dvm_config.NIP89.name + "] Request by blacklisted user, skipped") elif task_supported: print("[" + self.dvm_config.NIP89.name + "] Received new Request: " + task + " from " + user.name) amount = get_amount_per_task(task, self.dvm_config, duration) if amount is None: return task_is_free = False for dvm in self.dvm_config.SUPPORTED_TASKS: if dvm.TASK == task and dvm.COST == 0: task_is_free = True if user.iswhitelisted or task_is_free: print("[" + self.dvm_config.NIP89.name + "] Free task or Whitelisted for task " + task + ". Starting processing..") send_job_status_reaction(nip90_event, "processing", True, 0, client=self.client, dvm_config=self.dvm_config) do_work(nip90_event, is_from_bot=False) else: bid = 0 for tag in nip90_event.tags(): if tag.as_vec()[0] == 'bid': bid = int(tag.as_vec()[1]) print("[" + self.dvm_config.NIP89.name + "] Payment required: New Nostr " + task + " Job event: " + nip90_event.as_json()) if bid > 0: bid_offer = int(bid / 1000) if bid_offer >= amount: send_job_status_reaction(nip90_event, "payment-required", False, amount, # bid_offer client=self.client, dvm_config=self.dvm_config) else: # If there is no bid, just request server rate from user print("[" + self.dvm_config.NIP89.name + "] Requesting payment for Event: " + nip90_event.id().to_hex()) send_job_status_reaction(nip90_event, "payment-required", False, amount, client=self.client, dvm_config=self.dvm_config) else: print("Task not supported on this DVM, skipping..") def handle_zap(zap_event): zapped_event = None invoice_amount = 0 anon = False sender = zap_event.pubkey() print("Zap received") try: for tag in zap_event.tags(): if tag.as_vec()[0] == 'bolt11': invoice_amount = parse_amount_from_bolt11_invoice(tag.as_vec()[1]) elif tag.as_vec()[0] == 'e': zapped_event = get_event_by_id(tag.as_vec()[1], client=self.client, config=self.dvm_config) elif tag.as_vec()[0] == 'description': zap_request_event = Event.from_json(tag.as_vec()[1]) sender = check_for_zapplepay(zap_request_event.pubkey().to_hex(), zap_request_event.content()) for ztag in zap_request_event.tags(): if ztag.as_vec()[0] == 'anon': if len(ztag.as_vec()) > 1: print("Private Zap received.") decrypted_content = decrypt_private_zap_message(ztag.as_vec()[1], self.keys.secret_key(), zap_request_event.pubkey()) decrypted_private_event = Event.from_json(decrypted_content) if decrypted_private_event.kind() == 9733: sender = decrypted_private_event.pubkey().to_hex() message = decrypted_private_event.content() if message != "": print("Zap Message: " + message) else: anon = True print("Anonymous Zap received. Unlucky, I don't know from whom, and never will") user = get_or_add_user(self.dvm_config.DB, sender, client=self.client) print(str(user)) if zapped_event is not None: if zapped_event.kind() == EventDefinitions.KIND_FEEDBACK: # if a reaction by us got zapped print("Zap received for NIP90 task: " + str(invoice_amount) + " Sats from " + str( user.name)) amount = 0 job_event = None for tag in zapped_event.tags(): if tag.as_vec()[0] == 'amount': amount = int(float(tag.as_vec()[1]) / 1000) elif tag.as_vec()[0] == 'e': job_event = get_event_by_id(tag.as_vec()[1], client=self.client, config=self.dvm_config) task_supported, task, duration = check_task_is_supported(job_event, client=self.client, get_duration=False, config=self.dvm_config) if job_event is not None and task_supported: if amount <= invoice_amount: print("[" + self.dvm_config.NIP89.name + "] Payment-request fulfilled...") send_job_status_reaction(job_event, "processing", client=self.client, dvm_config=self.dvm_config) indices = [i for i, x in enumerate(self.job_list) if x.event_id == job_event.id().to_hex()] index = -1 if len(indices) > 0: index = indices[0] if index > -1: if self.job_list[index].is_processed: # If payment-required appears a processing self.job_list[index].is_paid = True check_and_return_event(self.job_list[index].result, str(job_event.as_json())) elif not (self.job_list[index]).is_processed: # If payment-required appears before processing self.job_list.pop(index) print("Starting work...") do_work(job_event, is_from_bot=False) else: print("Job not in List, but starting work...") do_work(job_event, is_from_bot=False) else: send_job_status_reaction(job_event, "payment-rejected", False, invoice_amount, client=self.client, dvm_config=self.dvm_config) print("[" + self.dvm_config.NIP89.name + "] Invoice was not paid sufficiently") elif zapped_event.kind() in EventDefinitions.ANY_RESULT: print("Someone zapped the result of an exisiting Task. Nice") elif not anon: print("Note Zap received for Bot balance: " + str(invoice_amount) + " Sats from " + str( user.name)) update_user_balance(self.dvm_config.DB, sender, invoice_amount, client=self.client, config=self.dvm_config) # a regular note elif not anon: print("Profile Zap received for Bot balance: " + str(invoice_amount) + " Sats from " + str( user.name)) update_user_balance(self.dvm_config.DB, sender, invoice_amount, client=self.client, config=self.dvm_config) except Exception as e: print(f"Error during content decryption: {e}") def handle_dm(dm_event): decrypted_text = nip04_decrypt(self.keys.secret_key(), dm_event.pubkey(), dm_event.content()) ob = json.loads(decrypted_text) #TODO SOME PARSING, OPTIONS, ZAP HANDLING # One key might host multiple dvms, so we check current task if ob['task'] == self.dvm_config.SUPPORTED_TASKS[0].TASK: j_tag = Tag.parse(["j", self.dvm_config.SUPPORTED_TASKS[0].TASK]) i_tag = Tag.parse(["i", ob['input'], "text"]) tags = [j_tag, i_tag] tags.append(Tag.parse(["y", dm_event.pubkey().to_hex()])) tags.append(Tag.parse(["z", ob['sender']])) job_event = EventBuilder(EventDefinitions.KIND_DM, "", tags).to_event(self.keys) do_work(job_event, is_from_bot=True) def check_event_has_not_unfinished_job_input(nevent, append, client, dvmconfig): task_supported, task, duration = check_task_is_supported(nevent, client, False, config=dvmconfig) if not task_supported: return False for tag in nevent.tags(): if tag.as_vec()[0] == 'i': if len(tag.as_vec()) < 3: print("Job Event missing/malformed i tag, skipping..") return False else: input = tag.as_vec()[1] input_type = tag.as_vec()[2] if input_type == "job": evt = get_referenced_event_by_id(event_id=input, client=client, kinds=EventDefinitions.ANY_RESULT, dvm_config=dvmconfig) if evt is None: if append: job = RequiredJobToWatch(event=nevent, timestamp=Timestamp.now().as_secs()) self.jobs_on_hold_list.append(job) send_job_status_reaction(nevent, "chain-scheduled", True, 0, client=client, dvm_config=dvmconfig) return False else: return True def check_and_return_event(data, original_event_str: str, is_from_bot: bool): original_event = Event.from_json(original_event_str) for x in self.job_list: if x.event_id == original_event.id().to_hex(): is_paid = x.is_paid amount = x.amount x.result = data x.is_processed = True if self.dvm_config.SHOW_RESULT_BEFORE_PAYMENT and not is_paid: send_nostr_reply_event(data, original_event_str,) send_job_status_reaction(original_event, "success", amount, dvm_config=self.dvm_config) # or payment-required, or both? elif not self.dvm_config.SHOW_RESULT_BEFORE_PAYMENT and not is_paid: send_job_status_reaction(original_event, "success", amount, dvm_config=self.dvm_config) # or payment-required, or both? if self.dvm_config.SHOW_RESULT_BEFORE_PAYMENT and is_paid: self.job_list.remove(x) elif not self.dvm_config.SHOW_RESULT_BEFORE_PAYMENT and is_paid: self.job_list.remove(x) send_nostr_reply_event(data, original_event_str) break try: post_processed_content = post_process_result(data, original_event) if is_from_bot: for tag in original_event.tags(): if tag.as_vec()[0] == "y": # TODO we temporally use internal tags to move information receiver_key = PublicKey.from_hex(tag.as_vec()[1]) elif tag.as_vec()[0] == "z": original_sender = tag.as_vec()[1] params = { "result": post_processed_content, "sender": original_sender } message = json.dumps(params) response_event = EventBuilder.new_encrypted_direct_msg(self.keys, receiver_key, message, None).to_event(self.keys) send_event(response_event, client=self.client, dvm_config=self.dvm_config) else: send_nostr_reply_event(post_processed_content, original_event_str) except Exception as e: respond_to_error(str(e), original_event_str, False) def send_nostr_reply_event(content, original_event_as_str): original_event = Event.from_json(original_event_as_str) request_tag = Tag.parse(["request", original_event_as_str.replace("\\", "")]) e_tag = Tag.parse(["e", original_event.id().to_hex()]) p_tag = Tag.parse(["p", original_event.pubkey().to_hex()]) alt_tag = Tag.parse(["alt", "This is the result of a NIP90 DVM AI task with kind " + str( original_event.kind()) + ". The task was: " + original_event.content()]) status_tag = Tag.parse(["status", "success"]) reply_tags = [request_tag, e_tag, p_tag, alt_tag, status_tag] for tag in original_event.tags(): if tag.as_vec()[0] == "i": i_content = tag.as_vec()[1] i_kind = tag.as_vec()[2] i_tag = Tag.parse(["i", i_content, i_kind]) reply_tags.append(i_tag) key = Keys.from_sk_str(self.dvm_config.PRIVATE_KEY) response_kind = original_event.kind() + 1000 reply_event = EventBuilder(response_kind, str(content), reply_tags).to_event(key) send_event(reply_event, client=self.client, dvm_config=self.dvm_config) print("[" + self.dvm_config.NIP89.name + "] " + str(response_kind) + " Job Response event sent: " + reply_event.as_json()) return reply_event.as_json() def respond_to_error(content: str, original_event_as_str: str, is_from_bot=False): print("ERROR: " + str(content)) keys = Keys.from_sk_str(self.dvm_config.PRIVATE_KEY) original_event = Event.from_json(original_event_as_str) sender = "" task = "" if not is_from_bot: send_job_status_reaction(original_event, "error", content=content, dvm_config=self.dvm_config) # TODO Send Zap back else: for tag in original_event.tags(): if tag.as_vec()[0] == "p": sender = tag.as_vec()[1] elif tag.as_vec()[0] == "i": task = tag.as_vec()[1] user = get_from_sql_table(self.dvm_config.DB, sender) if not user.iswhitelisted: amount = int(user.balance) + get_amount_per_task(task, self.dvm_config) update_sql_table(self.dvm_config.DB, sender, amount, user.iswhitelisted, user.isblacklisted, user.nip05, user.lud16, user.name, Timestamp.now().as_secs()) message = "There was the following error : " + content + ". Credits have been reimbursed" else: # User didn't pay, so no reimbursement message = "There was the following error : " + content evt = EventBuilder.new_encrypted_direct_msg(keys, PublicKey.from_hex(sender), message, None).to_event(keys) send_event(evt, client=self.client, dvm_config=self.dvm_config) def send_job_status_reaction(original_event, status, is_paid=True, amount=0, client=None, content=None, dvm_config=None): dvm_config = dvm_config task = get_task(original_event, client=client, dvmconfig=dvm_config) alt_description, reaction = build_status_reaction(status, task, amount, content) e_tag = Tag.parse(["e", original_event.id().to_hex()]) p_tag = Tag.parse(["p", original_event.pubkey().to_hex()]) alt_tag = Tag.parse(["alt", alt_description]) status_tag = Tag.parse(["status", status]) tags = [e_tag, p_tag, alt_tag, status_tag] if status == "success" or status == "error": # for x in self.job_list: if x.event_id == original_event.id(): is_paid = x.is_paid amount = x.amount break bolt11 = "" payment_hash = "" expires = original_event.created_at().as_secs() + (60 * 60 * 24) if status == "payment-required" or (status == "processing" and not is_paid): if dvm_config.LNBITS_INVOICE_KEY != "": try: bolt11, payment_hash = create_bolt11_ln_bits(amount, dvm_config) except Exception as e: print(e) if not any(x.event_id == original_event.id().to_hex() for x in self.job_list): self.job_list.append( JobToWatch(event_id=original_event.id().to_hex(), timestamp=original_event.created_at().as_secs(), amount=amount, is_paid=is_paid, status=status, result="", is_processed=False, bolt11=bolt11, payment_hash=payment_hash, expires=expires, from_bot=False)) #print(str(self.job_list)) if (status == "payment-required" or status == "payment-rejected" or ( status == "processing" and not is_paid) or (status == "success" and not is_paid)): if dvm_config.LNBITS_INVOICE_KEY != "": amount_tag = Tag.parse(["amount", str(amount * 1000), bolt11]) else: amount_tag = Tag.parse(["amount", str(amount * 1000)]) # to millisats tags.append(amount_tag) keys = Keys.from_sk_str(dvm_config.PRIVATE_KEY) event = EventBuilder(EventDefinitions.KIND_FEEDBACK, reaction, tags).to_event(keys) send_event(event, client=self.client, dvm_config=self.dvm_config) print("[" + self.dvm_config.NIP89.name + "]" + ": Sent Kind " + str( EventDefinitions.KIND_FEEDBACK) + " Reaction: " + status + " " + event.as_json()) return event.as_json() def do_work(job_event, is_from_bot=False): if (( EventDefinitions.KIND_NIP90_EXTRACT_TEXT <= job_event.kind() <= EventDefinitions.KIND_NIP90_GENERIC) or job_event.kind() == EventDefinitions.KIND_DM): task = get_task(job_event, client=self.client, dvmconfig=self.dvm_config) result = "" for dvm in self.dvm_config.SUPPORTED_TASKS: try: if task == dvm.TASK: request_form = dvm.create_request_form_from_nostr_event(job_event, self.client, self.dvm_config) result = dvm.process(request_form) check_and_return_event(result, str(job_event.as_json()), is_from_bot=is_from_bot) except Exception as e: print(e) respond_to_error(str(e), job_event.as_json(), is_from_bot=is_from_bot) return self.client.handle_notifications(NotificationHandler()) while True: for job in self.job_list: if job.bolt11 != "" and job.payment_hash != "" and not job.is_paid: if str(check_bolt11_ln_bits_is_paid(job.payment_hash, self.dvm_config)) == "True": job.is_paid = True event = get_event_by_id(job.event_id, client=self.client, config=self.dvm_config) if event is not None: send_job_status_reaction(event, "processing", True, 0, client=self.client, dvm_config=self.dvm_config) print("do work from joblist") do_work(event, is_from_bot=False) elif check_bolt11_ln_bits_is_paid(job.payment_hash, self.dvm_config) is None: # invoice expired try: self.job_list.remove(job) except: print("Error removing Job from List after payment") if Timestamp.now().as_secs() > job.expires: try: self.job_list.remove(job) except: print("Error removing Job from List after expiry") for job in self.jobs_on_hold_list: if check_event_has_not_unfinished_job_input(job.event, False, client=self.client, dvmconfig=self.dvm_config): handle_nip90_job_event(nip90_event=job.event) try: self.jobs_on_hold_list.remove(job) except: print("Error removing Job on Hold from List after expiry") if Timestamp.now().as_secs() > job.timestamp + 60 * 20: # remove jobs to look for after 20 minutes.. self.jobs_on_hold_list.remove(job) time.sleep(1.0)