Ejemplo n.º 1
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    async def create_new_did_wallet_from_recovery(
        wallet_state_manager: Any,
        wallet: Wallet,
        filename: str,
        name: str = None,
    ):
        self = DIDWallet()
        self.base_puzzle_program = None
        self.base_inner_puzzle_hash = None
        self.standard_wallet = wallet
        if name:
            self.log = logging.getLogger(name)
        else:
            self.log = logging.getLogger(__name__)

        self.wallet_state_manager = wallet_state_manager
        self.did_info = DIDInfo(None, [], uint64(0), [], None, None, None,
                                None)
        info_as_string = json.dumps(self.did_info.to_json_dict())
        self.wallet_info = await wallet_state_manager.user_store.create_wallet(
            "DID Wallet", WalletType.DISTRIBUTED_ID.value, info_as_string)
        await self.wallet_state_manager.add_new_wallet(self,
                                                       self.wallet_info.id)
        # load backup will also set our DIDInfo
        await self.load_backup(filename)

        if self.wallet_info is None:
            raise ValueError("Internal Error")
        self.wallet_id = self.wallet_info.id
        return self
Ejemplo n.º 2
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    async def coin_added(self, coin: Coin, _: uint32):
        """Notification from wallet state manager that wallet has been received."""
        self.log.info("DID wallet has been notified that coin was added")
        inner_puzzle = await self.inner_puzzle_for_did_puzzle(coin.puzzle_hash)
        if self.did_info.temp_coin is not None:
            self.wallet_state_manager.state_changed("did_coin_added",
                                                    self.wallet_info.id)
        new_info = DIDInfo(
            self.did_info.origin_coin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            self.did_info.parent_info,
            inner_puzzle,
            None,
            None,
            None,
            False,
        )
        await self.save_info(new_info, True)

        future_parent = LineageProof(
            coin.parent_coin_info,
            inner_puzzle.get_tree_hash(),
            coin.amount,
        )

        await self.add_parent(coin.name(), future_parent, True)
Ejemplo n.º 3
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 async def save_info(self, did_info: DIDInfo, in_transaction: bool):
     self.did_info = did_info
     current_info = self.wallet_info
     data_str = json.dumps(did_info.to_json_dict())
     wallet_info = WalletInfo(current_info.id, current_info.name, current_info.type, data_str)
     self.wallet_info = wallet_info
     await self.wallet_state_manager.user_store.update_wallet(wallet_info, in_transaction)
Ejemplo n.º 4
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    async def generate_new_decentralised_id(
            self, amount: uint64) -> Optional[SpendBundle]:
        """
        This must be called under the wallet state manager lock
        """

        coins = await self.standard_wallet.select_coins(amount)
        if coins is None:
            return None

        origin = coins.copy().pop()

        did_inner: Program = await self.get_new_innerpuz()
        did_inner_hash = did_inner.get_tree_hash()
        did_puz = did_wallet_puzzles.create_fullpuz(did_inner,
                                                    origin.puzzle_hash)
        did_puzzle_hash = did_puz.get_tree_hash()

        tx_record: Optional[
            TransactionRecord] = await self.standard_wallet.generate_signed_transaction(
                amount, did_puzzle_hash, uint64(0), origin.name(), coins)
        eve_coin = Coin(origin.name(), did_puzzle_hash, amount)
        future_parent = CCParent(
            eve_coin.parent_coin_info,
            did_inner_hash,
            eve_coin.amount,
        )
        eve_parent = CCParent(
            origin.parent_coin_info,
            origin.puzzle_hash,
            origin.amount,
        )
        await self.add_parent(eve_coin.parent_coin_info, eve_parent, False)
        await self.add_parent(eve_coin.name(), future_parent, False)

        if tx_record is None or tx_record.spend_bundle is None:
            return None

        # Only want to save this information if the transaction is valid
        did_info: DIDInfo = DIDInfo(
            origin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            self.did_info.parent_info,
            did_inner,
            None,
            None,
            None,
        )
        await self.save_info(did_info, False)
        eve_spend = await self.generate_eve_spend(eve_coin, did_puz, did_inner)
        full_spend = SpendBundle.aggregate([tx_record.spend_bundle, eve_spend])
        return full_spend
Ejemplo n.º 5
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 async def add_parent(self, name: bytes32, parent: Optional[CCParent], in_transaction: bool):
     self.log.info(f"Adding parent {name}: {parent}")
     current_list = self.did_info.parent_info.copy()
     current_list.append((name, parent))
     did_info: DIDInfo = DIDInfo(
         self.did_info.origin_coin,
         self.did_info.backup_ids,
         self.did_info.num_of_backup_ids_needed,
         current_list,
         self.did_info.current_inner,
         self.did_info.temp_coin,
         self.did_info.temp_puzhash,
         self.did_info.temp_pubkey,
     )
     await self.save_info(did_info, in_transaction)
Ejemplo n.º 6
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 async def update_recovery_list(self, recover_list: List[bytes], num_of_backup_ids_needed: uint64):
     if num_of_backup_ids_needed > len(recover_list):
         return False
     did_info: DIDInfo = DIDInfo(
         self.did_info.origin_coin,
         recover_list,
         num_of_backup_ids_needed,
         self.did_info.parent_info,
         self.did_info.current_inner,
         self.did_info.temp_coin,
         self.did_info.temp_puzhash,
         self.did_info.temp_pubkey,
     )
     await self.save_info(did_info, False)
     await self.wallet_state_manager.update_wallet_puzzle_hashes(self.wallet_info.id)
     return True
Ejemplo n.º 7
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    async def coin_added(self, coin: Coin, _: uint32):
        """Notification from wallet state manager that wallet has been received."""
        self.log.info(f"DID wallet has been notified that coin was added: {coin.name()}:{coin}")
        inner_puzzle = await self.inner_puzzle_for_did_puzzle(coin.puzzle_hash)
        if self.did_info.temp_coin is not None:
            self.wallet_state_manager.state_changed("did_coin_added", self.wallet_info.id)
        new_info = DIDInfo(
            self.did_info.origin_coin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            self.did_info.parent_info,
            inner_puzzle,
            None,
            None,
            None,
            False,
        )
        await self.save_info(new_info, True)

        future_parent = LineageProof(
            coin.parent_coin_info,
            inner_puzzle.get_tree_hash(),
            coin.amount,
        )

        await self.add_parent(coin.name(), future_parent, True)
        parent = self.get_parent_for_coin(coin)
        if parent is None:
            parent_state: CoinState = (
                await self.wallet_state_manager.wallet_node.get_coin_state([coin.parent_coin_info])
            )[0]
            node = self.wallet_state_manager.wallet_node.get_full_node_peer()
            assert parent_state.spent_height is not None
            puzzle_solution_request = wallet_protocol.RequestPuzzleSolution(
                coin.parent_coin_info, parent_state.spent_height
            )
            response = await node.request_puzzle_solution(puzzle_solution_request)
            req_puz_sol = response.response
            assert req_puz_sol.puzzle is not None
            parent_innerpuz = did_wallet_puzzles.get_innerpuzzle_from_puzzle(req_puz_sol.puzzle)
            assert parent_innerpuz is not None
            parent_info = LineageProof(
                parent_state.coin.parent_coin_info,
                parent_innerpuz.get_tree_hash(),
                parent_state.coin.amount,
            )
            await self.add_parent(coin.parent_coin_info, parent_info, False)
Ejemplo n.º 8
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 async def create(
     wallet_state_manager: Any,
     wallet: Wallet,
     wallet_info: WalletInfo,
     name: str = None,
 ):
     self = DIDWallet()
     self.log = logging.getLogger(name if name else __name__)
     self.wallet_state_manager = wallet_state_manager
     self.wallet_info = wallet_info
     self.wallet_id = wallet_info.id
     self.standard_wallet = wallet
     self.wallet_info = wallet_info
     self.did_info = DIDInfo.from_json_dict(json.loads(wallet_info.data))
     self.base_puzzle_program = None
     self.base_inner_puzzle_hash = None
     return self
Ejemplo n.º 9
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    async def coin_added(self, coin: Coin, header_hash: bytes32, removals: List[Coin], height: int):
        """Notification from wallet state manager that wallet has been received."""
        self.log.info("DID wallet has been notified that coin was added")
        inner_puzzle = await self.inner_puzzle_for_did_puzzle(coin.puzzle_hash)
        new_info = DIDInfo(
            self.did_info.origin_coin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            self.did_info.parent_info,
            inner_puzzle,
            None,
            None,
            None,
        )
        await self.save_info(new_info, True)

        future_parent = CCParent(
            coin.parent_coin_info,
            inner_puzzle.get_tree_hash(),
            coin.amount,
        )

        await self.add_parent(coin.name(), future_parent, True)
Ejemplo n.º 10
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    async def create_new_did_wallet(
        wallet_state_manager: Any,
        wallet: Wallet,
        amount: int,
        backups_ids: List = [],
        num_of_backup_ids_needed: uint64 = None,
        name: str = None,
    ):
        """
        This must be called under the wallet state manager lock
        """
        self = DIDWallet()
        self.base_puzzle_program = None
        self.base_inner_puzzle_hash = None
        self.standard_wallet = wallet
        if name:
            self.log = logging.getLogger(name)
        else:
            self.log = logging.getLogger(__name__)
        if amount & 1 == 0:
            raise ValueError("DID amount must be odd number")
        self.wallet_state_manager = wallet_state_manager
        if num_of_backup_ids_needed is None:
            num_of_backup_ids_needed = uint64(len(backups_ids))
        if num_of_backup_ids_needed > len(backups_ids):
            raise ValueError("Cannot require more IDs than are known.")
        self.did_info = DIDInfo(None, backups_ids, num_of_backup_ids_needed,
                                [], None, None, None, None)
        info_as_string = json.dumps(self.did_info.to_json_dict())
        self.wallet_info = await wallet_state_manager.user_store.create_wallet(
            "DID Wallet", WalletType.DISTRIBUTED_ID.value, info_as_string)
        if self.wallet_info is None:
            raise ValueError("Internal Error")
        self.wallet_id = self.wallet_info.id
        bal = await self.standard_wallet.get_confirmed_balance()
        if amount > bal:
            raise ValueError("Not enough balance")

        spend_bundle = await self.generate_new_decentralised_id(uint64(amount))
        if spend_bundle is None:
            raise ValueError("failed to generate ID for wallet")
        await self.wallet_state_manager.add_new_wallet(self,
                                                       self.wallet_info.id)
        assert self.did_info.origin_coin is not None
        did_puzzle_hash = did_wallet_puzzles.create_fullpuz(
            self.did_info.current_inner,
            self.did_info.origin_coin.puzzle_hash).get_tree_hash()

        did_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=did_puzzle_hash,
            amount=uint64(amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(10),
            spend_bundle=None,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.id(),
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.INCOMING_TX.value),
            name=token_bytes(),
        )
        regular_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=did_puzzle_hash,
            amount=uint64(amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(0),
            spend_bundle=spend_bundle,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.wallet_state_manager.main_wallet.id(),
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.OUTGOING_TX.value),
            name=token_bytes(),
        )
        await self.standard_wallet.push_transaction(regular_record)
        await self.standard_wallet.push_transaction(did_record)
        return self
Ejemplo n.º 11
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    async def load_backup(self, filename: str):
        try:
            f = open(filename, "r")
            details = f.readline().split(":")
            f.close()
            origin = Coin(bytes.fromhex(details[0]), bytes.fromhex(details[1]),
                          uint64(int(details[2])))
            backup_ids = []
            for d in details[3].split(","):
                backup_ids.append(bytes.fromhex(d))
            num_of_backup_ids_needed = uint64(int(details[5]))
            if num_of_backup_ids_needed > len(backup_ids):
                raise Exception
            innerpuz = Program.from_bytes(bytes.fromhex(details[4]))
            did_info = DIDInfo(
                origin,
                backup_ids,
                num_of_backup_ids_needed,
                self.did_info.parent_info,
                innerpuz,
                None,
                None,
                None,
            )
            await self.save_info(did_info, False)
            await self.wallet_state_manager.update_wallet_puzzle_hashes(
                self.wallet_info.id)

            full_puz = did_wallet_puzzles.create_fullpuz(
                innerpuz, origin.puzzle_hash)
            full_puzzle_hash = full_puz.get_tree_hash()
            (
                sub_height,
                header_hash,
            ) = await self.wallet_state_manager.search_blockrecords_for_puzzlehash(
                full_puzzle_hash)
            assert sub_height is not None
            assert header_hash is not None
            full_nodes = self.wallet_state_manager.server.connection_by_type[
                NodeType.FULL_NODE]
            additions: Union[RespondAdditions, RejectAdditionsRequest,
                             None] = None
            for id, node in full_nodes.items():
                request = wallet_protocol.RequestAdditions(
                    sub_height, header_hash, None)
                additions = await node.request_additions(request)
                if additions is not None:
                    break
                if isinstance(additions, RejectAdditionsRequest):
                    continue

            assert additions is not None
            assert isinstance(additions, RespondAdditions)
            # All additions in this block here:
            new_puzhash = (await self.get_new_puzzle()).get_tree_hash()
            new_pubkey = bytes(
                (await self.wallet_state_manager.get_unused_derivation_record(
                    self.wallet_info.id)).pubkey)

            all_parents: bytes32 = set()
            for puzzle_list_coin in additions.coins:
                puzzle_hash, coins = puzzle_list_coin
                for coin in coins:
                    all_parents.add(coin.parent_coin_info)
            for puzzle_list_coin in additions.coins:
                puzzle_hash, coins = puzzle_list_coin
                if puzzle_hash == full_puzzle_hash:
                    # our coin
                    for coin in coins:
                        future_parent = CCParent(
                            coin.parent_coin_info,
                            innerpuz.get_tree_hash(),
                            coin.amount,
                        )
                        await self.add_parent(coin.name(), future_parent,
                                              False)
                        if coin.name() in all_parents:
                            continue
                        did_info = DIDInfo(
                            origin,
                            backup_ids,
                            num_of_backup_ids_needed,
                            self.did_info.parent_info,
                            innerpuz,
                            coin,
                            new_puzhash,
                            new_pubkey,
                        )
                        await self.save_info(did_info, False)

            return None
        except Exception as e:
            raise e
Ejemplo n.º 12
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class DIDWallet:
    wallet_state_manager: Any
    log: logging.Logger
    wallet_info: WalletInfo
    did_info: DIDInfo
    standard_wallet: Wallet
    base_puzzle_program: Optional[bytes]
    base_inner_puzzle_hash: Optional[bytes32]
    wallet_id: int

    @staticmethod
    async def create_new_did_wallet(
        wallet_state_manager: Any,
        wallet: Wallet,
        amount: int,
        backups_ids: List = [],
        num_of_backup_ids_needed: uint64 = None,
        name: str = None,
    ):
        """
        This must be called under the wallet state manager lock
        """
        self = DIDWallet()
        self.base_puzzle_program = None
        self.base_inner_puzzle_hash = None
        self.standard_wallet = wallet
        if name:
            self.log = logging.getLogger(name)
        else:
            self.log = logging.getLogger(__name__)
        if amount & 1 == 0:
            raise ValueError("DID amount must be odd number")
        self.wallet_state_manager = wallet_state_manager
        if num_of_backup_ids_needed is None:
            num_of_backup_ids_needed = uint64(len(backups_ids))
        if num_of_backup_ids_needed > len(backups_ids):
            raise ValueError("Cannot require more IDs than are known.")
        self.did_info = DIDInfo(None, backups_ids, num_of_backup_ids_needed,
                                [], None, None, None, None)
        info_as_string = json.dumps(self.did_info.to_json_dict())
        self.wallet_info = await wallet_state_manager.user_store.create_wallet(
            "DID Wallet", WalletType.DISTRIBUTED_ID.value, info_as_string)
        if self.wallet_info is None:
            raise ValueError("Internal Error")
        self.wallet_id = self.wallet_info.id
        bal = await self.standard_wallet.get_confirmed_balance()
        if amount > bal:
            raise ValueError("Not enough balance")

        spend_bundle = await self.generate_new_decentralised_id(uint64(amount))
        if spend_bundle is None:
            raise ValueError("failed to generate ID for wallet")
        await self.wallet_state_manager.add_new_wallet(self,
                                                       self.wallet_info.id)
        assert self.did_info.origin_coin is not None
        did_puzzle_hash = did_wallet_puzzles.create_fullpuz(
            self.did_info.current_inner,
            self.did_info.origin_coin.puzzle_hash).get_tree_hash()

        did_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=did_puzzle_hash,
            amount=uint64(amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(10),
            spend_bundle=None,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.id(),
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.INCOMING_TX.value),
            name=token_bytes(),
        )
        regular_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=did_puzzle_hash,
            amount=uint64(amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(0),
            spend_bundle=spend_bundle,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.wallet_state_manager.main_wallet.id(),
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.OUTGOING_TX.value),
            name=token_bytes(),
        )
        await self.standard_wallet.push_transaction(regular_record)
        await self.standard_wallet.push_transaction(did_record)
        return self

    @staticmethod
    async def create_new_did_wallet_from_recovery(
        wallet_state_manager: Any,
        wallet: Wallet,
        filename: str,
        name: str = None,
    ):
        self = DIDWallet()
        self.base_puzzle_program = None
        self.base_inner_puzzle_hash = None
        self.standard_wallet = wallet
        if name:
            self.log = logging.getLogger(name)
        else:
            self.log = logging.getLogger(__name__)

        self.wallet_state_manager = wallet_state_manager
        self.did_info = DIDInfo(None, [], uint64(0), [], None, None, None,
                                None)
        info_as_string = json.dumps(self.did_info.to_json_dict())
        self.wallet_info = await wallet_state_manager.user_store.create_wallet(
            "DID Wallet", WalletType.DISTRIBUTED_ID.value, info_as_string)
        await self.wallet_state_manager.add_new_wallet(self,
                                                       self.wallet_info.id)
        # load backup will also set our DIDInfo
        await self.load_backup(filename)

        if self.wallet_info is None:
            raise ValueError("Internal Error")
        self.wallet_id = self.wallet_info.id
        return self

    @staticmethod
    async def create(
        wallet_state_manager: Any,
        wallet: Wallet,
        wallet_info: WalletInfo,
        name: str = None,
    ):
        self = DIDWallet()

        if name:
            self.log = logging.getLogger(name)
        else:
            self.log = logging.getLogger(__name__)

        self.wallet_state_manager = wallet_state_manager
        self.wallet_info = wallet_info
        self.wallet_id = wallet_info.id
        self.standard_wallet = wallet
        self.wallet_info = wallet_info
        self.did_info = DIDInfo.from_json_dict(json.loads(wallet_info.data))
        self.base_puzzle_program = None
        self.base_inner_puzzle_hash = None
        return self

    @classmethod
    def type(cls) -> uint8:
        return uint8(WalletType.DISTRIBUTED_ID)

    def id(self):
        return self.wallet_info.id

    async def get_confirmed_balance(self, record_list=None) -> uint64:
        if record_list is None:
            record_list = await self.wallet_state_manager.coin_store.get_unspent_coins_for_wallet(
                self.id())

        amount: uint64 = uint64(0)
        for record in record_list:
            parent = await self.get_parent_for_coin(record.coin)
            if parent is not None:
                amount = uint64(amount + record.coin.amount)

        self.log.info(f"Confirmed balance for did wallet is {amount}")
        return uint64(amount)

    async def get_pending_change_balance(self) -> uint64:
        unconfirmed_tx = await self.wallet_state_manager.tx_store.get_unconfirmed_for_wallet(
            self.id())
        addition_amount = 0

        for record in unconfirmed_tx:
            our_spend = False
            for coin in record.removals:
                if await self.wallet_state_manager.does_coin_belong_to_wallet(
                        coin, self.id()):
                    our_spend = True
                    break

            if our_spend is not True:
                continue

            for coin in record.additions:
                if await self.wallet_state_manager.does_coin_belong_to_wallet(
                        coin, self.id()):
                    addition_amount += coin.amount

        return uint64(addition_amount)

    async def get_unconfirmed_balance(self, record_list=None) -> uint64:
        confirmed = await self.get_confirmed_balance(record_list)
        unconfirmed_tx: List[
            TransactionRecord] = await self.wallet_state_manager.tx_store.get_unconfirmed_for_wallet(
                self.wallet_info.id)
        addition_amount = 0
        removal_amount = 0

        for record in unconfirmed_tx:
            if record.type == TransactionType.INCOMING_TX:
                addition_amount += record.amount
            else:
                removal_amount += record.amount

        result = confirmed - removal_amount + addition_amount

        self.log.info(f"Unconfirmed balance for did wallet is {result}")
        return uint64(result)

    async def select_coins(self,
                           amount,
                           exclude: List[Coin] = None) -> Optional[Set[Coin]]:
        """Returns a set of coins that can be used for generating a new transaction."""
        if exclude is None:
            exclude = []

        spendable_amount = await self.get_spendable_balance()
        if amount > spendable_amount:
            self.log.warning(
                f"Can't select {amount}, from spendable {spendable_amount} for wallet id {self.id()}"
            )
            return None

        self.log.info(f"About to select coins for amount {amount}")
        unspent: List[WalletCoinRecord] = list(
            await self.wallet_state_manager.get_spendable_coins_for_wallet(
                self.wallet_info.id))
        sum_value = 0
        used_coins: Set = set()

        # Use older coins first
        unspent.sort(key=lambda r: r.confirmed_block_height)

        # Try to use coins from the store, if there isn't enough of "unused"
        # coins use change coins that are not confirmed yet
        unconfirmed_removals: Dict[
            bytes32,
            Coin] = await self.wallet_state_manager.unconfirmed_removals_for_wallet(
                self.wallet_info.id)
        for coinrecord in unspent:
            if sum_value >= amount and len(used_coins) > 0:
                break
            if coinrecord.coin.name() in unconfirmed_removals:
                continue
            if coinrecord.coin in exclude:
                continue
            sum_value += coinrecord.coin.amount
            used_coins.add(coinrecord.coin)

        # This happens when we couldn't use one of the coins because it's already used
        # but unconfirmed, and we are waiting for the change. (unconfirmed_additions)
        if sum_value < amount:
            raise ValueError(
                "Can't make this transaction at the moment. Waiting for the change from the previous transaction."
            )

        self.log.info(f"Successfully selected coins: {used_coins}")
        return used_coins

    # This will be used in the recovery case where we don't have the parent info already
    async def coin_added(self, coin: Coin, header_hash: bytes32,
                         removals: List[Coin], height: int):
        """Notification from wallet state manager that wallet has been received."""
        self.log.info("DID wallet has been notified that coin was added")
        inner_puzzle = await self.inner_puzzle_for_did_puzzle(coin.puzzle_hash)
        new_info = DIDInfo(
            self.did_info.origin_coin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            self.did_info.parent_info,
            inner_puzzle,
            None,
            None,
            None,
        )
        await self.save_info(new_info, True)

        future_parent = CCParent(
            coin.parent_coin_info,
            inner_puzzle.get_tree_hash(),
            coin.amount,
        )

        await self.add_parent(coin.name(), future_parent, True)

    def create_backup(self, filename: str):
        assert self.did_info.current_inner is not None
        assert self.did_info.origin_coin is not None
        try:
            f = open(filename, "w")
            output_str = f"{self.did_info.origin_coin.parent_coin_info}:"
            output_str += f"{self.did_info.origin_coin.puzzle_hash}:"
            output_str += f"{self.did_info.origin_coin.amount}:"
            for did in self.did_info.backup_ids:
                output_str = output_str + did.hex() + ","
            output_str = output_str[:-1]
            output_str = (
                output_str +
                f":{bytes(self.did_info.current_inner).hex()}:{self.did_info.num_of_backup_ids_needed}"
            )
            f.write(output_str)
            f.close()
        except Exception as e:
            raise e
        return None

    async def load_backup(self, filename: str):
        try:
            f = open(filename, "r")
            details = f.readline().split(":")
            f.close()
            origin = Coin(bytes.fromhex(details[0]), bytes.fromhex(details[1]),
                          uint64(int(details[2])))
            backup_ids = []
            for d in details[3].split(","):
                backup_ids.append(bytes.fromhex(d))
            num_of_backup_ids_needed = uint64(int(details[5]))
            if num_of_backup_ids_needed > len(backup_ids):
                raise Exception
            innerpuz = Program.from_bytes(bytes.fromhex(details[4]))
            did_info = DIDInfo(
                origin,
                backup_ids,
                num_of_backup_ids_needed,
                self.did_info.parent_info,
                innerpuz,
                None,
                None,
                None,
            )
            await self.save_info(did_info, False)
            await self.wallet_state_manager.update_wallet_puzzle_hashes(
                self.wallet_info.id)

            full_puz = did_wallet_puzzles.create_fullpuz(
                innerpuz, origin.puzzle_hash)
            full_puzzle_hash = full_puz.get_tree_hash()
            (
                sub_height,
                header_hash,
            ) = await self.wallet_state_manager.search_blockrecords_for_puzzlehash(
                full_puzzle_hash)
            assert sub_height is not None
            assert header_hash is not None
            full_nodes = self.wallet_state_manager.server.connection_by_type[
                NodeType.FULL_NODE]
            additions: Union[RespondAdditions, RejectAdditionsRequest,
                             None] = None
            for id, node in full_nodes.items():
                request = wallet_protocol.RequestAdditions(
                    sub_height, header_hash, None)
                additions = await node.request_additions(request)
                if additions is not None:
                    break
                if isinstance(additions, RejectAdditionsRequest):
                    continue

            assert additions is not None
            assert isinstance(additions, RespondAdditions)
            # All additions in this block here:
            new_puzhash = (await self.get_new_puzzle()).get_tree_hash()
            new_pubkey = bytes(
                (await self.wallet_state_manager.get_unused_derivation_record(
                    self.wallet_info.id)).pubkey)

            all_parents: bytes32 = set()
            for puzzle_list_coin in additions.coins:
                puzzle_hash, coins = puzzle_list_coin
                for coin in coins:
                    all_parents.add(coin.parent_coin_info)
            for puzzle_list_coin in additions.coins:
                puzzle_hash, coins = puzzle_list_coin
                if puzzle_hash == full_puzzle_hash:
                    # our coin
                    for coin in coins:
                        future_parent = CCParent(
                            coin.parent_coin_info,
                            innerpuz.get_tree_hash(),
                            coin.amount,
                        )
                        await self.add_parent(coin.name(), future_parent,
                                              False)
                        if coin.name() in all_parents:
                            continue
                        did_info = DIDInfo(
                            origin,
                            backup_ids,
                            num_of_backup_ids_needed,
                            self.did_info.parent_info,
                            innerpuz,
                            coin,
                            new_puzhash,
                            new_pubkey,
                        )
                        await self.save_info(did_info, False)

            return None
        except Exception as e:
            raise e

    def puzzle_for_pk(self, pubkey: bytes) -> Program:
        innerpuz = did_wallet_puzzles.create_innerpuz(
            pubkey, self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed)
        if self.did_info.origin_coin is not None:
            return did_wallet_puzzles.create_fullpuz(
                innerpuz, self.did_info.origin_coin.puzzle_hash)
        else:
            return did_wallet_puzzles.create_fullpuz(innerpuz, 0x00)

    async def get_new_puzzle(self) -> Program:
        return self.puzzle_for_pk(
            bytes((await
                   self.wallet_state_manager.get_unused_derivation_record(
                       self.wallet_info.id)).pubkey))

    def get_my_DID(self) -> str:
        assert self.did_info.origin_coin is not None
        core = self.did_info.origin_coin.puzzle_hash
        assert core is not None
        return core.hex()

    # This is used to cash out, or update the id_list
    async def create_spend(self, puzhash: bytes32):
        assert self.did_info.current_inner is not None
        assert self.did_info.origin_coin is not None
        coins = await self.select_coins(1)
        assert coins is not None
        coin = coins.pop()
        # innerpuz solution is (mode amount new_puz identity my_puz)
        innersol: Program = Program.to(
            [0, coin.amount, puzhash,
             coin.name(), coin.puzzle_hash])
        # full solution is (corehash parent_info my_amount innerpuz_reveal solution)
        innerpuz: Program = self.did_info.current_inner

        full_puzzle: Program = did_wallet_puzzles.create_fullpuz(
            innerpuz,
            self.did_info.origin_coin.puzzle_hash,
        )
        parent_info = await self.get_parent_for_coin(coin)
        assert parent_info is not None
        fullsol = Program.to([
            [
                self.did_info.origin_coin.parent_coin_info,
                self.did_info.origin_coin.amount
            ],
            [
                parent_info.parent_name,
                parent_info.inner_puzzle_hash,
                parent_info.amount,
            ],
            coin.amount,
            innersol,
        ])
        list_of_solutions = [CoinSolution(coin, full_puzzle, fullsol)]
        # sign for AGG_SIG_ME
        message = (
            Program.to([coin.amount, puzhash]).get_tree_hash() + coin.name() +
            self.wallet_state_manager.constants.AGG_SIG_ME_ADDITIONAL_DATA)
        pubkey = did_wallet_puzzles.get_pubkey_from_innerpuz(innerpuz)
        index = await self.wallet_state_manager.puzzle_store.index_for_pubkey(
            pubkey)
        private = master_sk_to_wallet_sk(self.wallet_state_manager.private_key,
                                         index)
        signature = AugSchemeMPL.sign(private, message)
        # assert signature.validate([signature.PkMessagePair(pubkey, message)])
        sigs = [signature]
        aggsig = AugSchemeMPL.aggregate(sigs)
        spend_bundle = SpendBundle(list_of_solutions, aggsig)

        did_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=puzhash,
            amount=uint64(coin.amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(0),
            spend_bundle=spend_bundle,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.wallet_info.id,
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.OUTGOING_TX.value),
            name=token_bytes(),
        )
        await self.standard_wallet.push_transaction(did_record)
        return spend_bundle

    # Pushes the a SpendBundle to create a message coin on the blockchain
    # Returns a SpendBundle for the recoverer to spend the message coin
    async def create_attestment(self,
                                recovering_coin_name: bytes32,
                                newpuz: bytes32,
                                pubkey: G1Element,
                                filename=None) -> SpendBundle:
        assert self.did_info.current_inner is not None
        assert self.did_info.origin_coin is not None
        coins = await self.select_coins(1)
        assert coins is not None and coins != set()
        coin = coins.pop()
        message = did_wallet_puzzles.create_recovery_message_puzzle(
            recovering_coin_name, newpuz, pubkey)
        innermessage = message.get_tree_hash()
        # innerpuz solution is (mode amount new_puz identity my_puz)
        innersol = Program.to([
            1, coin.amount, innermessage, recovering_coin_name,
            coin.puzzle_hash
        ])
        # full solution is (corehash parent_info my_amount innerpuz_reveal solution)
        innerpuz: Program = self.did_info.current_inner
        full_puzzle: Program = did_wallet_puzzles.create_fullpuz(
            innerpuz,
            self.did_info.origin_coin.puzzle_hash,
        )
        parent_info = await self.get_parent_for_coin(coin)
        assert parent_info is not None

        fullsol = Program.to([
            [
                self.did_info.origin_coin.parent_coin_info,
                self.did_info.origin_coin.amount
            ],
            [
                parent_info.parent_name,
                parent_info.inner_puzzle_hash,
                parent_info.amount,
            ],
            coin.amount,
            innersol,
        ])
        list_of_solutions = [CoinSolution(coin, full_puzzle, fullsol)]
        message_spend = did_wallet_puzzles.create_spend_for_message(
            coin.name(), recovering_coin_name, newpuz, pubkey)

        message_spend_bundle = SpendBundle([message_spend],
                                           AugSchemeMPL.aggregate([]))
        # sign for AGG_SIG_ME
        to_sign = Program.to([coin.puzzle_hash, coin.amount,
                              innermessage]).get_tree_hash()
        message = to_sign + coin.name(
        ) + self.wallet_state_manager.constants.AGG_SIG_ME_ADDITIONAL_DATA
        pubkey = did_wallet_puzzles.get_pubkey_from_innerpuz(innerpuz)
        index = await self.wallet_state_manager.puzzle_store.index_for_pubkey(
            pubkey)
        private = master_sk_to_wallet_sk(self.wallet_state_manager.private_key,
                                         index)
        signature = AugSchemeMPL.sign(private, message)
        # assert signature.validate([signature.PkMessagePair(pubkey, message)])
        spend_bundle = SpendBundle(list_of_solutions, signature)
        did_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=coin.puzzle_hash,
            amount=uint64(coin.amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(0),
            spend_bundle=spend_bundle,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.wallet_info.id,
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.INCOMING_TX.value),
            name=token_bytes(),
        )
        await self.standard_wallet.push_transaction(did_record)
        if filename is not None:
            f = open(filename, "w")
            f.write(self.get_my_DID())
            f.write(":")
            f.write(bytes(message_spend_bundle).hex())
            f.write(":")
            parent = coin.parent_coin_info.hex()
            innerpuzhash = self.did_info.current_inner.get_tree_hash().hex()
            amount = coin.amount
            f.write(parent)
            f.write(":")
            f.write(innerpuzhash)
            f.write(":")
            f.write(str(amount))
            f.close()
        return message_spend_bundle

    # this is just for testing purposes, API should use create_attestment_now
    async def get_info_for_recovery(self):
        coins = await self.select_coins(1)
        coin = coins.pop()
        parent = coin.parent_coin_info
        innerpuzhash = self.did_info.current_inner.get_tree_hash()
        amount = coin.amount
        return [parent, innerpuzhash, amount]

    async def load_attest_files_for_recovery_spend(self, filenames):
        spend_bundle_list = []
        info_dict = {}
        try:
            for i in filenames:
                f = open(i)
                info = f.read().split(":")
                info_dict[info[0]] = [
                    bytes.fromhex(info[2]),
                    bytes.fromhex(info[3]),
                    uint64(info[4]),
                ]

                new_sb = SpendBundle.from_bytes(bytes.fromhex(info[1]))
                spend_bundle_list.append(new_sb)
                f.close()
            # info_dict {0xidentity: "(0xparent_info 0xinnerpuz amount)"}
            my_recovery_list: List[bytes] = self.did_info.backup_ids

            # convert info dict into recovery list - same order as wallet
            info_list = []
            for entry in my_recovery_list:
                if entry.hex() in info_dict:
                    info_list.append([
                        info_dict[entry.hex()][0],
                        info_dict[entry.hex()][1],
                        info_dict[entry.hex()][2],
                    ])
                else:
                    info_list.append([])
            message_spend_bundle = SpendBundle.aggregate(spend_bundle_list)
            return info_list, message_spend_bundle
        except Exception:
            raise

    async def recovery_spend(
        self,
        coin: Coin,
        puzhash: bytes,
        parent_innerpuzhash_amounts_for_recovery_ids: List[Tuple[bytes, bytes,
                                                                 int]],
        pubkey: G1Element,
        spend_bundle: SpendBundle,
    ) -> SpendBundle:
        assert self.did_info.origin_coin is not None
        # innerpuz solution is (mode amount new_puz identity my_puz parent_innerpuzhash_amounts_for_recovery_ids)
        innersol = Program.to([
            2,
            coin.amount,
            puzhash,
            coin.name(),
            coin.puzzle_hash,
            parent_innerpuzhash_amounts_for_recovery_ids,
            bytes(pubkey),
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
        ])
        # full solution is (parent_info my_amount solution)
        innerpuz = self.did_info.current_inner
        full_puzzle: Program = did_wallet_puzzles.create_fullpuz(
            innerpuz,
            self.did_info.origin_coin.puzzle_hash,
        )
        parent_info = await self.get_parent_for_coin(coin)
        assert parent_info is not None
        fullsol = Program.to([
            [
                self.did_info.origin_coin.parent_coin_info,
                self.did_info.origin_coin.amount
            ],
            [
                parent_info.parent_name,
                parent_info.inner_puzzle_hash,
                parent_info.amount,
            ],
            coin.amount,
            innersol,
        ])
        list_of_solutions = [CoinSolution(coin, full_puzzle, fullsol)]

        index = await self.wallet_state_manager.puzzle_store.index_for_pubkey(
            pubkey)
        if index is None:
            raise ValueError("Unknown pubkey.")
        private = master_sk_to_wallet_sk(self.wallet_state_manager.private_key,
                                         index)
        message = bytes(puzhash)
        sigs = [AugSchemeMPL.sign(private, message)]
        for _ in spend_bundle.coin_solutions:
            sigs.append(AugSchemeMPL.sign(private, message))
        aggsig = AugSchemeMPL.aggregate(sigs)
        # assert AugSchemeMPL.verify(pubkey, message, aggsig)
        if spend_bundle is None:
            spend_bundle = SpendBundle(list_of_solutions, aggsig)
        else:
            spend_bundle = spend_bundle.aggregate(
                [spend_bundle,
                 SpendBundle(list_of_solutions, aggsig)])

        did_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=puzhash,
            amount=uint64(coin.amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(0),
            spend_bundle=spend_bundle,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.wallet_info.id,
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.OUTGOING_TX.value),
            name=token_bytes(),
        )
        await self.standard_wallet.push_transaction(did_record)
        return spend_bundle

    async def get_new_innerpuz(self) -> Program:
        devrec = await self.wallet_state_manager.get_unused_derivation_record(
            self.standard_wallet.id())
        pubkey = bytes(devrec.pubkey)
        innerpuz = did_wallet_puzzles.create_innerpuz(
            pubkey,
            self.did_info.backup_ids,
            uint64(self.did_info.num_of_backup_ids_needed),
        )

        return innerpuz

    async def get_new_inner_hash(self) -> bytes32:
        innerpuz = await self.get_new_innerpuz()
        return innerpuz.get_tree_hash()

    async def get_innerhash_for_pubkey(self, pubkey: bytes):
        innerpuz = did_wallet_puzzles.create_innerpuz(
            pubkey,
            self.did_info.backup_ids,
            uint64(self.did_info.num_of_backup_ids_needed),
        )
        return innerpuz.get_tree_hash()

    async def inner_puzzle_for_did_puzzle(self, did_hash: bytes32) -> Program:
        record: DerivationRecord = await self.wallet_state_manager.puzzle_store.get_derivation_record_for_puzzle_hash(
            did_hash.hex())
        inner_puzzle: Program = did_wallet_puzzles.create_innerpuz(
            bytes(record.pubkey),
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
        )
        return inner_puzzle

    async def get_parent_for_coin(self, coin) -> Optional[CCParent]:
        parent_info = None
        for name, ccparent in self.did_info.parent_info:
            if name == coin.parent_coin_info:
                parent_info = ccparent

        return parent_info

    async def generate_new_decentralised_id(
            self, amount: uint64) -> Optional[SpendBundle]:
        """
        This must be called under the wallet state manager lock
        """

        coins = await self.standard_wallet.select_coins(amount)
        if coins is None:
            return None

        origin = coins.copy().pop()

        did_inner: Program = await self.get_new_innerpuz()
        did_inner_hash = did_inner.get_tree_hash()
        did_puz = did_wallet_puzzles.create_fullpuz(did_inner,
                                                    origin.puzzle_hash)
        did_puzzle_hash = did_puz.get_tree_hash()

        tx_record: Optional[
            TransactionRecord] = await self.standard_wallet.generate_signed_transaction(
                amount, did_puzzle_hash, uint64(0), origin.name(), coins)
        eve_coin = Coin(origin.name(), did_puzzle_hash, amount)
        future_parent = CCParent(
            eve_coin.parent_coin_info,
            did_inner_hash,
            eve_coin.amount,
        )
        eve_parent = CCParent(
            origin.parent_coin_info,
            origin.puzzle_hash,
            origin.amount,
        )
        await self.add_parent(eve_coin.parent_coin_info, eve_parent, False)
        await self.add_parent(eve_coin.name(), future_parent, False)

        if tx_record is None or tx_record.spend_bundle is None:
            return None

        # Only want to save this information if the transaction is valid
        did_info: DIDInfo = DIDInfo(
            origin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            self.did_info.parent_info,
            did_inner,
            None,
            None,
            None,
        )
        await self.save_info(did_info, False)
        eve_spend = await self.generate_eve_spend(eve_coin, did_puz, did_inner)
        full_spend = SpendBundle.aggregate([tx_record.spend_bundle, eve_spend])
        return full_spend

    async def generate_eve_spend(self, coin: Coin, full_puzzle: Program,
                                 innerpuz: Program):
        assert self.did_info.origin_coin is not None
        # innerpuz solution is (mode amount message my_id my_puzhash parent_innerpuzhash_amounts_for_recovery_ids)
        innersol = Program.to([
            0, coin.amount, coin.puzzle_hash,
            coin.name(), coin.puzzle_hash, []
        ])
        # full solution is (parent_info my_amount innersolution)
        fullsol = Program.to([
            [
                self.did_info.origin_coin.parent_coin_info,
                self.did_info.origin_coin.amount
            ],
            coin.parent_coin_info,
            coin.amount,
            innersol,
        ])
        list_of_solutions = [CoinSolution(coin, full_puzzle, fullsol)]
        # sign for AGG_SIG_ME
        message = (
            Program.to([coin.amount, coin.puzzle_hash]).get_tree_hash() +
            coin.name() +
            self.wallet_state_manager.constants.AGG_SIG_ME_ADDITIONAL_DATA)
        pubkey = did_wallet_puzzles.get_pubkey_from_innerpuz(innerpuz)
        index = await self.wallet_state_manager.puzzle_store.index_for_pubkey(
            pubkey)
        private = master_sk_to_wallet_sk(self.wallet_state_manager.private_key,
                                         index)
        signature = AugSchemeMPL.sign(private, message)
        sigs = [signature]
        aggsig = AugSchemeMPL.aggregate(sigs)
        spend_bundle = SpendBundle(list_of_solutions, aggsig)
        return spend_bundle

    async def get_frozen_amount(self) -> uint64:
        return await self.wallet_state_manager.get_frozen_balance(
            self.wallet_info.id)

    async def get_spendable_balance(self, unspent_records=None) -> uint64:
        spendable_am = await self.wallet_state_manager.get_confirmed_spendable_balance_for_wallet(
            self.wallet_info.id, unspent_records)
        return spendable_am

    async def get_max_send_amount(self, records=None):
        max_send_amount = await self.get_confirmed_balance()

        return max_send_amount

    async def add_parent(self, name: bytes32, parent: Optional[CCParent],
                         in_transaction: bool):
        self.log.info(f"Adding parent {name}: {parent}")
        current_list = self.did_info.parent_info.copy()
        current_list.append((name, parent))
        did_info: DIDInfo = DIDInfo(
            self.did_info.origin_coin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            current_list,
            self.did_info.current_inner,
            self.did_info.temp_coin,
            self.did_info.temp_puzhash,
            self.did_info.temp_pubkey,
        )
        await self.save_info(did_info, in_transaction)

    async def update_recovery_list(self, recover_list: List[bytes],
                                   num_of_backup_ids_needed: uint64):
        if num_of_backup_ids_needed > len(recover_list):
            return False
        did_info: DIDInfo = DIDInfo(
            self.did_info.origin_coin,
            recover_list,
            num_of_backup_ids_needed,
            self.did_info.parent_info,
            self.did_info.current_inner,
            self.did_info.temp_coin,
            self.did_info.temp_puzhash,
            self.did_info.temp_pubkey,
        )
        await self.save_info(did_info, False)
        await self.wallet_state_manager.update_wallet_puzzle_hashes(
            self.wallet_info.id)
        return True

    async def save_info(self, did_info: DIDInfo, in_transaction: bool):
        self.did_info = did_info
        current_info = self.wallet_info
        data_str = json.dumps(did_info.to_json_dict())
        wallet_info = WalletInfo(current_info.id, current_info.name,
                                 current_info.type, data_str)
        self.wallet_info = wallet_info
        await self.wallet_state_manager.user_store.update_wallet(
            wallet_info, in_transaction)
Ejemplo n.º 13
0
    async def generate_new_decentralised_id(
            self, amount: uint64) -> Optional[SpendBundle]:
        """
        This must be called under the wallet state manager lock
        """

        coins = await self.standard_wallet.select_coins(amount)
        if coins is None:
            return None

        origin = coins.copy().pop()
        genesis_launcher_puz = did_wallet_puzzles.SINGLETON_LAUNCHER
        launcher_coin = Coin(origin.name(),
                             genesis_launcher_puz.get_tree_hash(), amount)

        did_inner: Program = await self.get_new_innerpuz()
        did_inner_hash = did_inner.get_tree_hash()
        did_full_puz = did_wallet_puzzles.create_fullpuz(
            did_inner, launcher_coin.name())
        did_puzzle_hash = did_full_puz.get_tree_hash()

        announcement_set: Set[Announcement] = set()
        announcement_message = Program.to(
            [did_puzzle_hash, amount, bytes(0x80)]).get_tree_hash()
        announcement_set.add(
            Announcement(launcher_coin.name(), announcement_message).name())

        tx_record: Optional[
            TransactionRecord] = await self.standard_wallet.generate_signed_transaction(
                amount, genesis_launcher_puz.get_tree_hash(), uint64(0),
                origin.name(), coins, None, False, announcement_set)

        genesis_launcher_solution = Program.to(
            [did_puzzle_hash, amount, bytes(0x80)])

        launcher_cs = CoinSolution(launcher_coin, genesis_launcher_puz,
                                   genesis_launcher_solution)
        launcher_sb = SpendBundle([launcher_cs], AugSchemeMPL.aggregate([]))
        eve_coin = Coin(launcher_coin.name(), did_puzzle_hash, amount)
        future_parent = LineageProof(
            eve_coin.parent_coin_info,
            did_inner_hash,
            eve_coin.amount,
        )
        eve_parent = LineageProof(
            launcher_coin.parent_coin_info,
            launcher_coin.puzzle_hash,
            launcher_coin.amount,
        )
        await self.add_parent(eve_coin.parent_coin_info, eve_parent, False)
        await self.add_parent(eve_coin.name(), future_parent, False)

        if tx_record is None or tx_record.spend_bundle is None:
            return None

        # Only want to save this information if the transaction is valid
        did_info: DIDInfo = DIDInfo(
            launcher_coin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            self.did_info.parent_info,
            did_inner,
            None,
            None,
            None,
        )
        await self.save_info(did_info, False)
        eve_spend = await self.generate_eve_spend(eve_coin, did_full_puz,
                                                  did_inner)
        full_spend = SpendBundle.aggregate(
            [tx_record.spend_bundle, eve_spend, launcher_sb])
        return full_spend
Ejemplo n.º 14
0
    async def recovery_spend(
        self,
        coin: Coin,
        puzhash: bytes32,
        parent_innerpuzhash_amounts_for_recovery_ids: List[Tuple[bytes, bytes,
                                                                 int]],
        pubkey: G1Element,
        spend_bundle: SpendBundle,
    ) -> SpendBundle:
        assert self.did_info.origin_coin is not None

        # innersol is mode new_amount message new_inner_puzhash parent_innerpuzhash_amounts_for_recovery_ids pubkey recovery_list_reveal)  # noqa
        innersol: Program = Program.to([
            2,
            coin.amount,
            puzhash,
            puzhash,
            parent_innerpuzhash_amounts_for_recovery_ids,
            bytes(pubkey),
            self.did_info.backup_ids,
        ])
        # full solution is (parent_info my_amount solution)
        assert self.did_info.current_inner is not None
        innerpuz: Program = self.did_info.current_inner
        full_puzzle: Program = did_wallet_puzzles.create_fullpuz(
            innerpuz,
            self.did_info.origin_coin.name(),
        )
        parent_info = await self.get_parent_for_coin(coin)
        assert parent_info is not None
        fullsol = Program.to([
            [
                parent_info.parent_name,
                parent_info.inner_puzzle_hash,
                parent_info.amount,
            ],
            coin.amount,
            innersol,
        ])
        list_of_solutions = [CoinSpend(coin, full_puzzle, fullsol)]

        index = await self.wallet_state_manager.puzzle_store.index_for_pubkey(
            pubkey)
        if index is None:
            raise ValueError("Unknown pubkey.")
        private = master_sk_to_wallet_sk(self.wallet_state_manager.private_key,
                                         index)
        message = bytes(puzhash)
        sigs = [AugSchemeMPL.sign(private, message)]
        for _ in spend_bundle.coin_spends:
            sigs.append(AugSchemeMPL.sign(private, message))
        aggsig = AugSchemeMPL.aggregate(sigs)
        # assert AugSchemeMPL.verify(pubkey, message, aggsig)
        if spend_bundle is None:
            spend_bundle = SpendBundle(list_of_solutions, aggsig)
        else:
            spend_bundle = spend_bundle.aggregate(
                [spend_bundle,
                 SpendBundle(list_of_solutions, aggsig)])

        did_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=puzhash,
            amount=uint64(coin.amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(0),
            spend_bundle=spend_bundle,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.wallet_info.id,
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.OUTGOING_TX.value),
            name=token_bytes(),
        )
        await self.standard_wallet.push_transaction(did_record)
        new_did_info = DIDInfo(
            self.did_info.origin_coin,
            self.did_info.backup_ids,
            self.did_info.num_of_backup_ids_needed,
            self.did_info.parent_info,
            self.did_info.current_inner,
            self.did_info.temp_coin,
            self.did_info.temp_puzhash,
            self.did_info.temp_pubkey,
            True,
        )
        await self.save_info(new_did_info, True)
        return spend_bundle
Ejemplo n.º 15
0
    async def load_backup(self, filename: str):
        try:
            f = open(filename, "r")
            details = f.readline().split(":")
            f.close()
            origin = Coin(
                bytes32.fromhex(details[0]),
                bytes32.fromhex(details[1]),
                uint64(int(details[2])),
            )
            backup_ids = []
            for d in details[3].split(","):
                backup_ids.append(bytes.fromhex(d))
            num_of_backup_ids_needed = uint64(int(details[5]))
            if num_of_backup_ids_needed > len(backup_ids):
                raise Exception
            innerpuz: Program = Program.from_bytes(bytes.fromhex(details[4]))
            did_info: DIDInfo = DIDInfo(
                origin,
                backup_ids,
                num_of_backup_ids_needed,
                self.did_info.parent_info,
                innerpuz,
                None,
                None,
                None,
                False,
            )
            await self.save_info(did_info, False)
            await self.wallet_state_manager.update_wallet_puzzle_hashes(self.wallet_info.id)

            # full_puz = did_wallet_puzzles.create_fullpuz(innerpuz, origin.name())
            # All additions in this block here:
            new_puzhash = await self.get_new_inner_hash()
            new_pubkey = bytes(
                (await self.wallet_state_manager.get_unused_derivation_record(self.wallet_info.id)).pubkey
            )
            parent_info = None

            node = self.wallet_state_manager.wallet_node.get_full_node_peer()
            children = await self.wallet_state_manager.wallet_node.fetch_children(node, origin.name())
            while True:
                if len(children) == 0:
                    break

                children_state: CoinState = children[0]
                coin = children_state.coin
                name = coin.name()
                children = await self.wallet_state_manager.wallet_node.fetch_children(node, name)
                future_parent = LineageProof(
                    coin.parent_coin_info,
                    innerpuz.get_tree_hash(),
                    coin.amount,
                )
                await self.add_parent(coin.name(), future_parent, False)
                if children_state.spent_height != children_state.created_height:
                    did_info = DIDInfo(
                        origin,
                        backup_ids,
                        num_of_backup_ids_needed,
                        self.did_info.parent_info,
                        innerpuz,
                        coin,
                        new_puzhash,
                        new_pubkey,
                        False,
                    )
                    await self.save_info(did_info, False)
                    assert children_state.created_height
                    puzzle_solution_request = wallet_protocol.RequestPuzzleSolution(
                        coin.parent_coin_info, children_state.created_height
                    )
                    parent_state: CoinState = (
                        await self.wallet_state_manager.wallet_node.get_coin_state([coin.parent_coin_info])
                    )[0]
                    response = await node.request_puzzle_solution(puzzle_solution_request)
                    req_puz_sol = response.response
                    assert req_puz_sol.puzzle is not None
                    parent_innerpuz = did_wallet_puzzles.get_innerpuzzle_from_puzzle(req_puz_sol.puzzle)
                    assert parent_innerpuz is not None
                    parent_info = LineageProof(
                        parent_state.coin.parent_coin_info,
                        parent_innerpuz.get_tree_hash(),
                        parent_state.coin.amount,
                    )
                    await self.add_parent(coin.parent_coin_info, parent_info, False)
            assert parent_info is not None
            return None
        except Exception as e:
            raise e
Ejemplo n.º 16
0
    async def create_new_did_wallet(
        wallet_state_manager: Any,
        wallet: Wallet,
        amount: uint64,
        backups_ids: List = [],
        num_of_backup_ids_needed: uint64 = None,
        name: str = None,
    ):
        """
        This must be called under the wallet state manager lock
        """
        self = DIDWallet()
        self.base_puzzle_program = None
        self.base_inner_puzzle_hash = None
        self.standard_wallet = wallet
        self.log = logging.getLogger(name if name else __name__)
        std_wallet_id = self.standard_wallet.wallet_id
        bal = await wallet_state_manager.get_confirmed_balance_for_wallet_already_locked(
            std_wallet_id)
        if amount > bal:
            raise ValueError("Not enough balance")
        if amount & 1 == 0:
            raise ValueError("DID amount must be odd number")
        self.wallet_state_manager = wallet_state_manager
        if num_of_backup_ids_needed is None:
            num_of_backup_ids_needed = uint64(len(backups_ids))
        if num_of_backup_ids_needed > len(backups_ids):
            raise ValueError("Cannot require more IDs than are known.")
        self.did_info = DIDInfo(None, backups_ids, num_of_backup_ids_needed,
                                [], None, None, None, None, False)
        info_as_string = json.dumps(self.did_info.to_json_dict())
        self.wallet_info = await wallet_state_manager.user_store.create_wallet(
            "DID Wallet", WalletType.DISTRIBUTED_ID.value, info_as_string)
        if self.wallet_info is None:
            raise ValueError("Internal Error")
        self.wallet_id = self.wallet_info.id
        std_wallet_id = self.standard_wallet.wallet_id
        bal = await wallet_state_manager.get_confirmed_balance_for_wallet_already_locked(
            std_wallet_id)
        if amount > bal:
            raise ValueError("Not enough balance")

        try:
            spend_bundle = await self.generate_new_decentralised_id(
                uint64(amount))
        except Exception:
            await wallet_state_manager.user_store.delete_wallet(
                self.id(), False)
            raise

        if spend_bundle is None:
            await wallet_state_manager.user_store.delete_wallet(
                self.id(), False)
            raise ValueError("Failed to create spend.")
        await self.wallet_state_manager.add_new_wallet(self,
                                                       self.wallet_info.id)
        assert self.did_info.origin_coin is not None
        assert self.did_info.current_inner is not None
        did_puzzle_hash = did_wallet_puzzles.create_fullpuz(
            self.did_info.current_inner,
            self.did_info.origin_coin.name()).get_tree_hash()

        # TODO: address hint error and remove ignore
        #       error: Argument "name" to "TransactionRecord" has incompatible type "bytes"; expected "bytes32"
        #       [arg-type]
        did_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=did_puzzle_hash,
            amount=uint64(amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(10),
            spend_bundle=None,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.id(),
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.INCOMING_TX.value),
            name=token_bytes(),  # type: ignore[arg-type]
        )
        # TODO: address hint error and remove ignore
        #       error: Argument "name" to "TransactionRecord" has incompatible type "bytes"; expected "bytes32"
        #       [arg-type]
        regular_record = TransactionRecord(
            confirmed_at_height=uint32(0),
            created_at_time=uint64(int(time.time())),
            to_puzzle_hash=did_puzzle_hash,
            amount=uint64(amount),
            fee_amount=uint64(0),
            confirmed=False,
            sent=uint32(0),
            spend_bundle=spend_bundle,
            additions=spend_bundle.additions(),
            removals=spend_bundle.removals(),
            wallet_id=self.wallet_state_manager.main_wallet.id(),
            sent_to=[],
            trade_id=None,
            type=uint32(TransactionType.OUTGOING_TX.value),
            name=token_bytes(),  # type: ignore[arg-type]
        )
        await self.standard_wallet.push_transaction(regular_record)
        await self.standard_wallet.push_transaction(did_record)
        return self