wownero-python/monero/backends/jsonrpc.py

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import binascii
from datetime import datetime
import operator
import json
import logging
import pprint
import requests
from .. import exceptions
from ..account import Account
from ..address import address, Address, SubAddress
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from ..numbers import from_atomic, to_atomic, PaymentID
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from ..transaction import Transaction, IncomingPayment, OutgoingPayment
_log = logging.getLogger(__name__)
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class JSONRPCDaemon(object):
"""
JSON RPC backend for Monero daemon
:param protocol: `http` or `https`
:param host: host name or IP
:param port: port number
:param path: path for JSON RPC requests (should not be changed)
"""
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def __init__(self, protocol='http', host='127.0.0.1', port=18081, path='/json_rpc'):
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self.url = '{protocol}://{host}:{port}'.format(
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protocol=protocol,
host=host,
port=port)
_log.debug("JSONRPC daemon backend URL: {url}".format(url=self.url))
def info(self):
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info = self.raw_jsonrpc_request('get_info')
return info
def send_transaction(self, blob, relay=True):
res = self.raw_request('/sendrawtransaction', {
'tx_as_hex': blob,
'do_not_relay': not relay})
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if res['status'] == 'OK':
return res
raise exceptions.TransactionBroadcastError(
"{status}: {reason}".format(**res),
details=res)
def mempool(self):
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res = self.raw_request('/get_transaction_pool', {})
txs = []
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for tx in res.get('transactions', []):
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txs.append(Transaction(
hash=tx['id_hash'],
fee=from_atomic(tx['fee']),
timestamp=datetime.fromtimestamp(tx['receive_time'])))
return txs
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def raw_request(self, path, data):
hdr = {'Content-Type': 'application/json'}
_log.debug(u"Request: {path}\nData: {data}".format(
path=path,
data=pprint.pformat(data)))
rsp = requests.post(self.url + path, headers=hdr, data=json.dumps(data))
if rsp.status_code != 200:
raise RPCError("Invalid HTTP status {code} for path {path}.".format(
code=rsp.status_code,
path=path))
result = rsp.json()
_ppresult = pprint.pformat(result)
_log.debug(u"Result:\n{result}".format(result=_ppresult))
return result
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def raw_jsonrpc_request(self, method, params=None):
hdr = {'Content-Type': 'application/json'}
data = {'jsonrpc': '2.0', 'id': 0, 'method': method, 'params': params or {}}
_log.debug(u"Method: {method}\nParams:\n{params}".format(
method=method,
params=pprint.pformat(params)))
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rsp = requests.post(self.url + '/json_rpc', headers=hdr, data=json.dumps(data))
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if rsp.status_code != 200:
raise RPCError("Invalid HTTP status {code} for method {method}.".format(
code=rsp.status_code,
method=method))
result = rsp.json()
_ppresult = pprint.pformat(result)
_log.debug(u"Result:\n{result}".format(result=_ppresult))
if 'error' in result:
err = result['error']
_log.error(u"JSON RPC error:\n{result}".format(result=_ppresult))
raise RPCError(
"Method '{method}' failed with RPC Error of unknown code {code}, "
"message: {message}".format(method=method, data=data, result=result, **err))
return result['result']
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class JSONRPCWallet(object):
"""
JSON RPC backend for Monero wallet (``monero-wallet-rpc``)
:param protocol: `http` or `https`
:param host: host name or IP
:param port: port number
:param path: path for JSON RPC requests (should not be changed)
:param user: username to authenticate with over RPC
:param password: password to authenticate with over RPC
"""
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_master_address = None
_addresses = None
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def __init__(self, protocol='http', host='127.0.0.1', port=18088, path='/json_rpc', user='', password=''):
self.url = '{protocol}://{host}:{port}/json_rpc'.format(
protocol=protocol,
host=host,
port=port)
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_log.debug("JSONRPC wallet backend URL: {url}".format(url=self.url))
self.user = user
self.password = password
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_log.debug("JSONRPC wallet backend auth: '{user}'/'{stars}'".format(
user=user, stars=('*' * len(password)) if password else ''))
def height(self):
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return self.raw_request('getheight')['height']
def spend_key(self):
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# NOTE: This will fail on 0.11.x, the method was missing
return self.raw_request('query_key', {'key_type': 'spend_key'})['key']
def view_key(self):
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return self.raw_request('query_key', {'key_type': 'view_key'})['key']
def seed(self):
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return self.raw_request('query_key', {'key_type': 'mnemonic'})['key']
def accounts(self):
accounts = []
try:
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_accounts = self.raw_request('get_accounts', squelch_error_logging=True)
except MethodNotFound:
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# monero <= 0.11 : there's only one account and one address
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_log.debug('Monero <= 0.11 found, no accounts')
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self._master_address = self.addresses()[0]
return [Account(self, 0)]
idx = 0
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self._master_address = Address(_accounts['subaddress_accounts'][0]['base_address'])
for _acc in _accounts['subaddress_accounts']:
assert idx == _acc['account_index']
accounts.append(Account(self, _acc['account_index']))
idx += 1
return accounts
def new_account(self, label=None):
_account = self.raw_request('create_account', {'label': label})
return Account(self, _account['account_index']), SubAddress(_account['address'])
def addresses(self, account=0):
_addresses = self.raw_request('getaddress', {'account_index': account})
if 'addresses' not in _addresses:
# monero <= 0.11
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_log.debug('Monero <= 0.11 found, assuming single address')
return [Address(_addresses['address'])]
addresses = [None] * (max(map(operator.itemgetter('address_index'), _addresses['addresses'])) + 1)
for _addr in _addresses['addresses']:
addresses[_addr['address_index']] = address(
_addr['address'],
label=_addr.get('label', None))
return addresses
def new_address(self, account=0, label=None):
_address = self.raw_request(
'create_address', {'account_index': account, 'label': label})
return SubAddress(_address['address'])
def balances(self, account=0):
_balance = self.raw_request('getbalance', {'account_index': account})
return (from_atomic(_balance['balance']), from_atomic(_balance['unlocked_balance']))
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def transfers_in(self, account, pmtfilter):
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params = {'account_index': account, 'pending': False}
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method = 'get_transfers'
if pmtfilter.unconfirmed:
params['in'] = pmtfilter.confirmed
params['out'] = False
params['pool'] = True
else:
if pmtfilter.payment_ids:
method = 'get_bulk_payments'
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params['payment_ids'] = list(map(str, pmtfilter.payment_ids))
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else:
params['in'] = pmtfilter.confirmed
params['out'] = False
params['pool'] = False
if method == 'get_transfers':
arg = 'in'
if pmtfilter.min_height:
# NOTE: the API uses (min, max] range which is confusing
params['min_height'] = pmtfilter.min_height - 1
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params['filter_by_height'] = True
if pmtfilter.max_height:
params['max_height'] = pmtfilter.max_height
params['filter_by_height'] = True
# PR#3235 makes the following obsolete
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# CRYPTONOTE_MAX_BLOCK_NUMBER = 500000000
params['max_height'] = params.get('max_height', 500000000)
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else:
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arg = 'payments'
# NOTE: the API uses (min, max] range which is confusing
params['min_block_height'] = (pmtfilter.min_height or 1) - 1
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_pmts = self.raw_request(method, params)
pmts = _pmts.get(arg, [])
if pmtfilter.unconfirmed:
pmts.extend(_pmts.get('pool', []))
return list(pmtfilter.filter(map(self._inpayment, pmts)))
def transfers_out(self, account, pmtfilter):
_pmts = self.raw_request('get_transfers', {
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'account_index': account,
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'in': False,
'out': pmtfilter.confirmed,
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'pool': False,
'pending': pmtfilter.unconfirmed})
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pmts = _pmts.get('out', [])
if pmtfilter.unconfirmed:
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pmts.extend(_pmts.get('pending', []))
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return list(pmtfilter.filter(map(self._outpayment, pmts)))
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def _paymentdict(self, data):
pid = data.get('payment_id', None)
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laddr = data.get('address', None)
if laddr:
laddr = address(laddr)
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return {
'payment_id': None if pid is None else PaymentID(pid),
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'amount': from_atomic(data['amount']),
'timestamp': datetime.fromtimestamp(data['timestamp']) if 'timestamp' in data else None,
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'note': data.get('note', None),
'transaction': self._tx(data),
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'local_address': laddr,
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}
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def _inpayment(self, data):
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return IncomingPayment(**self._paymentdict(data))
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def _outpayment(self, data):
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return OutgoingPayment(**self._paymentdict(data))
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def _tx(self, data):
return Transaction(**{
'hash': data.get('txid', data.get('tx_hash')),
'fee': from_atomic(data['fee']) if 'fee' in data else None,
'key': data.get('key'),
'height': data.get('height', data.get('block_height')) or None,
'timestamp': datetime.fromtimestamp(data['timestamp']) if 'timestamp' in data else None,
'blob': data.get('blob', None),
})
def transfer(self, destinations, priority, ringsize,
payment_id=None, unlock_time=0, account=0,
relay=True):
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data = {
'account_index': account,
'destinations': list(map(
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lambda dst: {'address': str(address(dst[0])), 'amount': to_atomic(dst[1])},
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destinations)),
'mixin': ringsize - 1,
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'priority': priority,
'unlock_time': 0,
'get_tx_keys': True,
'get_tx_hex': True,
'new_algorithm': True,
'do_not_relay': not relay,
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}
if payment_id is not None:
data['payment_id'] = str(PaymentID(payment_id))
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_transfers = self.raw_request('transfer_split', data)
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_pertx = [dict(_tx) for _tx in map(
lambda vs: zip(('txid', 'amount', 'fee', 'key', 'blob', 'payment_id'), vs),
zip(*[_transfers[k] for k in (
'tx_hash_list', 'amount_list', 'fee_list', 'tx_key_list', 'tx_blob_list')]))]
for d in _pertx:
d['payment_id'] = payment_id
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return [self._tx(data) for data in _pertx]
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def raw_request(self, method, params=None, squelch_error_logging=False):
hdr = {'Content-Type': 'application/json'}
data = {'jsonrpc': '2.0', 'id': 0, 'method': method, 'params': params or {}}
_log.debug(u"Method: {method}\nParams:\n{params}".format(
method=method,
params=pprint.pformat(params)))
auth = requests.auth.HTTPDigestAuth(self.user, self.password)
rsp = requests.post(self.url, headers=hdr, data=json.dumps(data), auth=auth)
if rsp.status_code == 401:
raise Unauthorized("401 Unauthorized. Invalid RPC user name or password.")
elif rsp.status_code != 200:
raise RPCError("Invalid HTTP status {code} for method {method}.".format(
code=rsp.status_code,
method=method))
result = rsp.json()
_ppresult = pprint.pformat(result)
_log.debug(u"Result:\n{result}".format(result=_ppresult))
if 'error' in result:
err = result['error']
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if not squelch_error_logging:
_log.error(u"JSON RPC error:\n{result}".format(result=_ppresult))
# XXX: workaround for 0.11 bug throwing a wrong error code
if err['code'] == -4 and 'not enough money' in err['message']:
raise exceptions.NotEnoughMoney(err['message'])
#
if err['code'] in _err2exc:
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raise _err2exc[err['code']](err['message'])
else:
raise RPCError(
"Method '{method}' failed with RPC Error of unknown code {code}, "
"message: {message}".format(method=method, data=data, result=result, **err))
return result['result']
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class RPCError(exceptions.BackendException):
pass
class Unauthorized(RPCError):
pass
class MethodNotFound(RPCError):
pass
_err2exc = {
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-2: exceptions.WrongAddress,
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-5: exceptions.WrongPaymentId,
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-8: exceptions.TransactionNotFound,
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-16: exceptions.TransactionNotPossible,
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-17: exceptions.NotEnoughMoney,
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-20: exceptions.AmountIsZero,
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-37: exceptions.NotEnoughUnlockedMoney, # PR pending: https://github.com/monero-project/monero/pull/3197
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-38: exceptions.NoDaemonConnection, # PR 3197
-32601: MethodNotFound,
}