# -*- coding: utf-8 -*-
#
# BitcoinLib - Python Cryptocurrency Library
# litecoinblockexplorer.net Client
# © 2019-2023 May - 1200 Web Development <http://1200wd.com/>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import logging
from datetime import datetime
from bitcoinlib.main import MAX_TRANSACTIONS
from bitcoinlib.services.baseclient import BaseClient
from bitcoinlib.transactions import Transaction
PROVIDERNAME = 'litecoinblockexplorer'
REQUEST_LIMIT = 50
_logger = logging.getLogger(__name__)
[docs]
class LitecoinBlockexplorerClient(BaseClient):
def __init__(self, network, base_url, denominator, *args):
super(self.__class__, self).__init__(network, PROVIDERNAME, base_url, denominator, *args)
[docs]
def compose_request(self, category, data, cmd='', variables=None, method='get', offset=0):
url_path = category
if data:
url_path += '/' + data + ('' if not cmd else '/' + cmd)
if variables is None:
variables = {}
variables.update({'from': offset, 'to': offset+REQUEST_LIMIT})
return self.request(url_path, variables, method=method)
def _convert_to_transaction(self, tx):
if tx['confirmations']:
status = 'confirmed'
else:
status = 'unconfirmed'
fees = None if 'fees' not in tx else int(round(float(tx['fees']) * self.units, 0))
value_in = 0 if 'valueIn' not in tx else int(round(float(tx['valueIn']) * self.units, 0))
txdate = None
if 'blocktime' in tx:
txdate = datetime.utcfromtimestamp(tx['blocktime'])
t = Transaction.parse_hex(tx['hex'], strict=self.strict, network=self.network)
t.fee = fees
t.input_total = value_in
t.output_total = int(round(float(tx['valueOut']) * self.units, 0))
t.fees = int(round(float(tx['fees']) * self.units, 0))
t.date = txdate
t.confirmations = tx['confirmations']
t.block_height = tx['blockheight']
if t.confirmations == 0:
t.block_height = None
t.date = None
t.block_hash = tx.get('blockhash', '')
t.status = status
for n, ti in enumerate(tx['vin']):
t.inputs[n].value = int(round(float(ti['value'] or 0) * self.units, 0))
for i, to in enumerate(tx['vout']):
t.outputs[i].spent = to['spent']
return t
[docs]
def getbalance(self, addresslist):
balance = 0
addresslist = self._addresslist_convert(addresslist)
for a in addresslist:
res = self.compose_request('address', a.address)
balance += int(float(res['balance']) / self.network.denominator)
return balance
[docs]
def getutxos(self, address, after_txid='', limit=MAX_TRANSACTIONS):
address = self._address_convert(address)
res = self.compose_request('utxo', address.address)
txs = []
for tx in res:
if tx['txid'] == after_txid:
break
txs.append({
'address': address.address_orig,
'txid': tx['txid'],
'confirmations': tx['confirmations'],
'output_n': tx['vout'],
'input_n': 0,
'block_height': tx['height'],
'fee': None,
'size': 0,
'value': tx['satoshis'],
'script': tx.get('scriptPubKey', ''),
'date': None
})
return txs[::-1][:limit]
[docs]
def gettransaction(self, txid):
tx = self.compose_request('tx', txid)
return self._convert_to_transaction(tx)
# FIXME: Not available anymore
# def gettransactions(self, address, after_txid='', limit=MAX_TRANSACTIONS):
# address = self._address_convert(address)
# res = self.compose_request('addrs', address.address, 'txs')
# txs = []
# txs_dict = res['items'][::-1]
# if after_txid:
# txs_dict = txs_dict[[t['txid'] for t in txs_dict].index(after_txid) + 1:]
# for tx in txs_dict[:limit]:
# if tx['txid'] == after_txid:
# break
# txs.append(self._convert_to_transaction(tx))
# return txs
[docs]
def getrawtransaction(self, txid):
res = self.compose_request('tx', txid)
return res['hex']
[docs]
def sendrawtransaction(self, rawtx):
res = self.compose_request('sendtx', data=rawtx)
return {
'txid': res['result'],
'response_dict': res
}
[docs]
def estimatefee(self, blocks):
res = self.compose_request('estimatefee', str(int(blocks)+1))
return int(float(res['result']) / self.network.denominator)
[docs]
def blockcount(self):
res = self.compose_request('status', '', variables={'q': 'getinfo'})
return res['blockbook']['bestHeight']
[docs]
def mempool(self, txid):
res = self.compose_request('tx', txid)
if res['confirmations'] == 0:
return res['txid']
return []
[docs]
def getblock(self, blockid, parse_transactions, page, limit):
bd = self.compose_request('block', str(blockid))
if parse_transactions:
txs = []
for tx in bd['txs'][(page-1)*limit:page*limit]:
txs.append(self.gettransaction(tx['txid']))
else:
txs = [tx['txid'] for tx in bd['txs']]
block = {
'bits': int(bd['bits'], 16),
'depth': bd['confirmations'],
'block_hash': bd['hash'],
'height': bd['height'],
'merkle_root': bd['merkleRoot'],
'nonce': int(bd['nonce']),
'prev_block': bd['previousBlockHash'],
'time': bd['time'],
'tx_count': bd['txCount'],
'txs': txs,
'version': bd['version'],
'page': page,
'pages': None if not limit else int(len(bd['txs']) // limit) + (len(bd['txs']) % limit > 0),
'limit': limit
}
return block
# def getrawblock(self, blockid):
[docs]
def isspent(self, txid, output_n):
t = self.gettransaction(txid)
return 1 if t.outputs[output_n].spent else 0
[docs]
def getinfo(self):
info = self.compose_request('status', '')
return {
'blockcount': info['backend']['blocks'],
'chain': info['backend']['chain'],
'difficulty': int(float(info['backend']['difficulty'])),
'hashrate': 0,
'mempool_size': info['blockbook']['mempoolSize'],
}