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https://github.com/alexgo-io/stacks-puppet-node.git
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139 lines
3.8 KiB
Python
139 lines
3.8 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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"""
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Blockstack-client
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~~~~~
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copyright: (c) 2014-2015 by Halfmoon Labs, Inc.
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copyright: (c) 2016 by Blockstack.org
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This file is part of Blockstack-client.
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Blockstack-client is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Blockstack-client is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Blockstack-client. If not, see <http://www.gnu.org/licenses/>.
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"""
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import sys
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import requests
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import json
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import traceback
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from ...logger import get_logger
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log = get_logger("insight-api")
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class InsightClient(object):
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def __init__(self, url, min_confirmations=None):
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assert url
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self.url = url
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self.min_confirmations = min_confirmations
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def get_unspents(self, address):
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url = self.url + '/insight-api/addr/{}/utxo'.format(address)
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resp = None
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log.debug("GET {}".format(url))
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try:
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req = requests.get(url)
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resp = req.json()
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except Exception as e:
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log.error("Failed to query UTXos")
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raise
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# format...
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try:
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unspents = format_unspents(resp)
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log.debug("{} has {} UTXOs".format(address, len(unspents)))
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return unspents
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except Exception as e:
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traceback.print_exc()
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raise ValueError("Invalid UTXO response")
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def broadcast_transaction(self, rawtx):
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url = self.url + '/insight-api/tx/send'
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req = None
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data = json.dumps({'rawtx': rawtx})
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headers = {'content-type': 'application/json', 'accept': 'application/json'}
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req = None
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resp = None
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log.debug("POST {}".format(url))
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try:
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req = requests.post(url, data=data, headers=headers)
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except Exception as e:
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log.error("Failed to send transaction")
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raise
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try:
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resp = req.json()
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return {'success': True, 'tx_hash': resp['txid']}
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except:
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raise Exception("Failed to broadcast transaction, got response: {}".format(req.text))
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def format_unspents(unspents):
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return [{
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'transaction_hash': s['txid'],
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'outpoint': {
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'hash': s['txid'],
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'index': s['vout'],
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},
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'value': s['satoshis'],
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'out_script': s['scriptPubKey'],
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'confirmations': s['confirmations']
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} for s in unspents]
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def _get_unspents( address, client=None ):
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"""
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Get unspent outputs from an Insight API endpoint
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"""
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if not isinstance(client, InsightClient):
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raise Exception("Not a Blockstack Explorer client")
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unspents = client.get_unspents( address )
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return unspents
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def _broadcast_transaction( txdata, client=None ):
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"""
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Send a transaction through an Insight API endpoint
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"""
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if not isinstance(client, InsightClient):
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raise Exception("Not a Blockstack Explorer client")
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res = client.broadcast_transaction( txdata )
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return res
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if __name__ == '__main__':
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import sys
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op = sys.argv[1]
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arg = sys.argv[2]
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if op == 'get_unspents':
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res = _get_unspents(arg)
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print json.dumps(res, indent=4, sort_keys=True)
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sys.exit(0)
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elif op == 'broadcast_transaction':
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res = _broadcast_transaction(arg)
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print json.dumps(res, indent=4, sort_keys=True)
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sys.exit(0)
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else:
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raise Exception("invalid argument")
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