tMerge pull request #264 from maxme/get-balance-script - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
DIR Refs
DIR Submodules
---
DIR commit 164c746f51732f04325913382445f24e1af2608d
DIR parent 78f5f372c40c14edbb1cb4232a713825e0907ad8
HTML Author: ThomasV <thomasv1@gmx.de>
Date: Tue, 6 Aug 2013 14:32:04 -0700
Merge pull request #264 from maxme/get-balance-script
New script: get_balance <bitcoin_address>
Diffstat:
A scripts/get_balance | 90 +++++++++++++++++++++++++++++++
1 file changed, 90 insertions(+), 0 deletions(-)
---
DIR diff --git a/scripts/get_balance b/scripts/get_balance
t@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+
+import sys
+from electrum import Interface
+from electrum import bitcoin, Transaction
+
+
+def get_transaction(interface, tx_hash, tx_height):
+ raw_tx = interface.synchronous_get([(
+ 'blockchain.transaction.get', [tx_hash, tx_height])])[0]
+ tx = Transaction(raw_tx)
+ return tx
+
+
+def get_history(interface, addr):
+ transactions = interface.synchronous_get([(
+ 'blockchain.address.get_history', [addr])])[0]
+ transactions.sort(key=lambda x: x["height"])
+ return [(i["tx_hash"], i["height"]) for i in transactions]
+
+
+def get_addr_balance(interface, address):
+ prevout_values = {}
+ h = get_history(interface, address)
+ if h == ['*']:
+ return 0, 0
+ c = u = 0
+ received_coins = [] # list of coins received at address
+ transactions = {}
+
+ # fetch transactions
+ for tx_hash, tx_height in h:
+ transactions[(tx_hash, tx_height)] = get_transaction(
+ interface, tx_hash, tx_height)
+
+ for tx_hash, tx_height in h:
+ tx = transactions[(tx_hash, tx_height)]
+ if not tx:
+ continue
+ update_tx_outputs(tx, prevout_values)
+ for i, (addr, value) in enumerate(tx.outputs):
+ if addr == address:
+ key = tx_hash + ':%d' % i
+ received_coins.append(key)
+
+ for tx_hash, tx_height in h:
+ tx = transactions[(tx_hash, tx_height)]
+ if not tx:
+ continue
+ v = 0
+
+ for item in tx.inputs:
+ addr = item.get('address')
+ if addr == address:
+ key = item['prevout_hash'] + ':%d' % item['prevout_n']
+ value = prevout_values.get(key)
+ if key in received_coins:
+ v -= value
+ for i, (addr, value) in enumerate(tx.outputs):
+ key = tx_hash + ':%d' % i
+ if addr == address:
+ v += value
+ if tx_height:
+ c += v
+ else:
+ u += v
+ return c, u
+
+
+def update_tx_outputs(tx, prevout_values):
+ for i, (addr, value) in enumerate(tx.outputs):
+ key = tx.hash() + ':%d' % i
+ prevout_values[key] = value
+
+
+def main(address):
+ interface = Interface()
+ interface.start()
+ c, u = get_addr_balance(interface, address)
+
+ print("Balance - confirmed: %d (%.8f BTC), unconfirmed: %d (%.8f BTC)" %
+ (c, c / 100000000., u, u / 100000000.))
+
+if __name__ == "__main__":
+ try:
+ address = sys.argv[1]
+ except:
+ print "usage: get_balance <bitcoin_address>"
+ sys.exit(1)
+ main(address)