import json import os import subprocess from datetime import timedelta from sys import platform from nostr_sdk import PublicKey, Keys, Client, Tag, Event, EventBuilder, Filter, HandleNotification, Timestamp, \ init_logger, LogLevel, Options, nip04_encrypt, ClientSigner import time from nostr_dvm.utils.definitions import EventDefinitions, RequiredJobToWatch, JobToWatch from nostr_dvm.utils.dvmconfig import DVMConfig from nostr_dvm.utils.admin_utils import admin_make_database_updates, AdminConfig from nostr_dvm.utils.backend_utils import get_amount_per_task, check_task_is_supported, get_task from nostr_dvm.utils.database_utils import create_sql_table, get_or_add_user, update_user_balance, update_sql_table from nostr_dvm.utils.mediasource_utils import input_data_file_duration from nostr_dvm.utils.nostr_utils import get_event_by_id, get_referenced_event_by_id, send_event, check_and_decrypt_tags from nostr_dvm.utils.output_utils import build_status_reaction from nostr_dvm.utils.zap_utils import check_bolt11_ln_bits_is_paid, create_bolt11_ln_bits, parse_zap_event_tags, \ parse_amount_from_bolt11_invoice, zaprequest, pay_bolt11_ln_bits, create_bolt11_lud16 from nostr_dvm.utils.cashu_utils import redeem_cashu 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, dvm_config, admin_config=None): self.dvm_config = dvm_config self.admin_config = admin_config self.keys = Keys.from_sk_str(dvm_config.PRIVATE_KEY) wait_for_send = True skip_disconnected_relays = True opts = (Options().wait_for_send(wait_for_send).send_timeout(timedelta(seconds=self.dvm_config.RELAY_TIMEOUT)) .skip_disconnected_relays(skip_disconnected_relays)) signer = ClientSigner.keys(self.keys) self.client = Client.with_opts(signer,opts) 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_DVMS) + "\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()) kinds = [EventDefinitions.KIND_NIP90_GENERIC] for dvm in self.dvm_config.SUPPORTED_DVMS: 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]) 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: handle_nip90_job_event(nostr_event) elif nostr_event.kind() == EventDefinitions.KIND_ZAP: handle_zap(nostr_event) def handle_msg(self, relay_url, msg): return def handle_nip90_job_event(nip90_event): nip90_event = check_and_decrypt_tags(nip90_event, self.dvm_config) if nip90_event is None: return user = get_or_add_user(self.dvm_config.DB, nip90_event.pubkey().to_hex(), client=self.client, config=self.dvm_config) cashu = "" p_tag_str = "" for tag in nip90_event.tags(): if tag.as_vec()[0] == "cashu": cashu = tag.as_vec()[1] elif tag.as_vec()[0] == "p": p_tag_str = tag.as_vec()[1] task_supported, task = check_task_is_supported(nip90_event, client=self.client, 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) duration = input_data_file_duration(nip90_event, dvm_config=self.dvm_config, client=self.client) 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_DVMS: if dvm.TASK == task and dvm.FIX_COST == 0 and dvm.PER_UNIT_COST == 0: task_is_free = True cashu_redeemed = False if cashu != "": print(cashu) cashu_redeemed, cashu_message, redeem_amount, fees = redeem_cashu(cashu, self.dvm_config, self.client, int(amount)) print(cashu_message) if cashu_message != "success": send_job_status_reaction(nip90_event, "error", False, amount, self.client, cashu_message, self.dvm_config) return # if user is whitelisted or task is free, just do the job if (user.iswhitelisted or task_is_free or cashu_redeemed) and (p_tag_str == "" or p_tag_str == self.dvm_config.PUBLIC_KEY): 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) # when we reimburse users on error make sure to not send anything if it was free if user.iswhitelisted or task_is_free: amount = 0 do_work(nip90_event, amount) # if task is directed to us via p tag and user has balance, do the job and update balance elif p_tag_str == self.dvm_config.PUBLIC_KEY and user.balance >= int(amount): balance = max(user.balance - int(amount), 0) update_sql_table(db=self.dvm_config.DB, npub=user.npub, balance=balance, iswhitelisted=user.iswhitelisted, isblacklisted=user.isblacklisted, nip05=user.nip05, lud16=user.lud16, name=user.name, lastactive=Timestamp.now().as_secs()) print( "[" + self.dvm_config.NIP89.NAME + "] Using user's balance for task: " + task + ". Starting processing.. New balance is: " + str(balance)) send_job_status_reaction(nip90_event, "processing", True, 0, client=self.client, dvm_config=self.dvm_config) do_work(nip90_event, amount) # else send a payment required event to user elif p_tag_str == "" or p_tag_str == self.dvm_config.PUBLIC_KEY: 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 >= int(amount): send_job_status_reaction(nip90_event, "payment-required", False, int(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, int(amount), client=self.client, dvm_config=self.dvm_config) else: print("[" + self.dvm_config.NIP89.NAME + "] Job addressed to someone else, skipping..") # else: # print("[" + self.dvm_config.NIP89.NAME + "] Task " + task + " not supported on this DVM, skipping..") def handle_zap(zap_event): try: invoice_amount, zapped_event, sender, message, anon = parse_zap_event_tags(zap_event, self.keys, self.dvm_config.NIP89.NAME, self.client, self.dvm_config) user = get_or_add_user(db=self.dvm_config.DB, npub=sender, client=self.client, config=self.dvm_config) if zapped_event is not None: if zapped_event.kind() == EventDefinitions.KIND_FEEDBACK: amount = 0 job_event = None p_tag_str = "" 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) if job_event is not None: job_event = check_and_decrypt_tags(job_event, self.dvm_config) if job_event is None: return else: return # if a reaction by us got zapped task_supported, task = check_task_is_supported(job_event, client=self.client, config=self.dvm_config) if job_event is not None and task_supported: print("Zap received for NIP90 task: " + str(invoice_amount) + " Sats from " + str( user.name)) 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 == job_event] 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, job_event) 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, invoice_amount) else: print("Job not in List, but starting work...") do_work(job_event, invoice_amount) 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("[" + self.dvm_config.NIP89.NAME + "] " "Someone zapped the result of an exisiting Task. Nice") elif not anon: print("[" + self.dvm_config.NIP89.NAME + "] Note Zap received for DVM 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("[" + self.dvm_config.NIP89.NAME + "] Profile Zap received for DVM 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("[" + self.dvm_config.NIP89.NAME + "] Error during content decryption: " + str(e)) def check_event_has_not_unfinished_job_input(nevent, append, client, dvmconfig): task_supported, task = check_task_is_supported(nevent, client, 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: Event): amount = 0 for x in self.job_list: if x.event == original_event: 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.as_json()) 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.as_json()) break task = get_task(original_event, self.client, self.dvm_config) for dvm in self.dvm_config.SUPPORTED_DVMS: if task == dvm.TASK: try: post_processed = dvm.post_process(data, original_event) send_nostr_reply_event(post_processed, original_event.as_json()) except Exception as e: # Zapping back by error in post-processing is a risk for the DVM because work has been done, # but maybe something with parsing/uploading failed. Try to avoid errors here as good as possible send_job_status_reaction(original_event, "error", content="Error in Post-processing: " + str(e), dvm_config=self.dvm_config, ) if amount > 0 and self.dvm_config.LNBITS_ADMIN_KEY != "": user = get_or_add_user(self.dvm_config.DB, original_event.pubkey().to_hex(), client=self.client, config=self.dvm_config) print(user.lud16 + " " + str(amount)) bolt11 = zaprequest(user.lud16, amount, "Couldn't finish job, returning sats", original_event, self.keys, self.dvm_config, zaptype="private") if bolt11 is None: print("Receiver has no Lightning address, can't zap back.") return try: payment_hash = pay_bolt11_ln_bits(bolt11, self.dvm_config) except Exception as e: print(e) 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]) 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] encrypted = False for tag in original_event.tags(): if tag.as_vec()[0] == "encrypted": encrypted = True encrypted_tag = Tag.parse(["encrypted"]) reply_tags.append(encrypted_tag) for tag in original_event.tags(): if tag.as_vec()[0] == "i": i_tag = tag if not encrypted: reply_tags.append(i_tag) if encrypted: print(content) content = nip04_encrypt(self.keys.secret_key(), PublicKey.from_hex(original_event.pubkey().to_hex()), content) reply_event = EventBuilder(original_event.kind() + 1000, str(content), reply_tags).to_event(self.keys) send_event(reply_event, client=self.client, dvm_config=self.dvm_config) print("[" + self.dvm_config.NIP89.NAME + "] " + str( original_event.kind() + 1000) + " Job Response event sent: " + reply_event.as_json()) def send_job_status_reaction(original_event, status, is_paid=True, amount=0, client=None, content=None, dvm_config=None): task = get_task(original_event, client=client, dvm_config=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]) reply_tags = [e_tag, alt_tag, status_tag] encryption_tags = [] encrypted = False for tag in original_event.tags(): if tag.as_vec()[0] == "encrypted": encrypted = True encrypted_tag = Tag.parse(["encrypted"]) encryption_tags.append(encrypted_tag) if encrypted: encryption_tags.append(p_tag) else: reply_tags.append(p_tag) if status == "success" or status == "error": # for x in self.job_list: if x.event == original_event: 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) try: bolt11, payment_hash = create_bolt11_lud16(dvm_config.LN_ADDRESS, amount) except Exception as e: print(e) bolt11 = None elif dvm_config.LN_ADDRESS != "": try: bolt11, payment_hash = create_bolt11_lud16(dvm_config.LN_ADDRESS, amount) except Exception as e: print(e) bolt11 = None if not any(x.event == original_event for x in self.job_list): self.job_list.append( JobToWatch(event=original_event, 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)) # 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 reply_tags.append(amount_tag) if encrypted: content_tag = Tag.parse(["content", reaction]) reply_tags.append(content_tag) str_tags = [] for element in reply_tags: str_tags.append(element.as_vec()) content = json.dumps(str_tags) content = nip04_encrypt(self.keys.secret_key(), PublicKey.from_hex(original_event.pubkey().to_hex()), content) reply_tags = encryption_tags else: content = reaction keys = Keys.from_sk_str(dvm_config.PRIVATE_KEY) reaction_event = EventBuilder(EventDefinitions.KIND_FEEDBACK, str(content), reply_tags).to_event(keys) send_event(reaction_event, client=self.client, dvm_config=self.dvm_config) print("[" + self.dvm_config.NIP89.NAME + "]" + ": Sent Kind " + str( EventDefinitions.KIND_FEEDBACK) + " Reaction: " + status + " " + reaction_event.as_json()) return reaction_event.as_json() def do_work(job_event, amount): 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, dvm_config=self.dvm_config) for dvm in self.dvm_config.SUPPORTED_DVMS: result = "" try: if task == dvm.TASK: request_form = dvm.create_request_from_nostr_event(job_event, self.client, self.dvm_config) if dvm_config.USE_OWN_VENV: python_location = "/bin/python" if platform == "win32": python_location = "/Scripts/python" python_bin = (r'cache/venvs/' + os.path.basename(dvm_config.SCRIPT).split(".py")[0] + python_location) retcode = subprocess.call([python_bin, dvm_config.SCRIPT, '--request', json.dumps(request_form), '--identifier', dvm_config.IDENTIFIER, '--output', 'output.txt']) print("Finished processing, loading data..") with open(os.path.abspath('output.txt')) as f: resultall = f.readlines() for line in resultall: if line != '\n': result += line os.remove(os.path.abspath('output.txt')) assert not result.startswith("Error:") print(result) else: # Some components might have issues with running code in otuside venv. # We install locally in these cases for now result = dvm.process(request_form) try: post_processed = dvm.post_process(str(result), job_event) send_nostr_reply_event(post_processed, job_event.as_json()) except Exception as e: send_job_status_reaction(job_event, "error", content=str(e), dvm_config=self.dvm_config) except Exception as e: # we could send the exception here to the user, but maybe that's not a good idea after all. send_job_status_reaction(job_event, "error", content=result, dvm_config=self.dvm_config) # Zapping back the user on error if amount > 0 and self.dvm_config.LNBITS_ADMIN_KEY != "": user = get_or_add_user(self.dvm_config.DB, job_event.pubkey().to_hex(), client=self.client, config=self.dvm_config) print(user.lud16 + " " + str(amount)) bolt11 = zaprequest(user.lud16, amount, "Couldn't finish job, returning sats", job_event, user.npub, self.keys, self.dvm_config.RELAY_LIST, zaptype="private") if bolt11 is None: print("Receiver has no Lightning address, can't zap back.") return try: payment_hash = pay_bolt11_ln_bits(bolt11, self.dvm_config) except Exception as e: print(e) 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: ispaid = check_bolt11_ln_bits_is_paid(job.payment_hash, self.dvm_config) if ispaid and job.is_paid is False: print("is paid") job.is_paid = True send_job_status_reaction(job.event, "processing", True, 0, client=self.client, dvm_config=self.dvm_config) print("[" + self.dvm_config.NIP89.NAME + "] doing work from joblist") amount = parse_amount_from_bolt11_invoice(job.bolt11) do_work(job.event, amount) elif ispaid is None: # invoice expired self.job_list.remove(job) if Timestamp.now().as_secs() > job.expires: self.job_list.remove(job) 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("[" + self.dvm_config.NIP89.NAME + "] 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)