tcheck that histories and transactions are consistent - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
DIR Refs
DIR Submodules
---
DIR commit 62be41161bbc20bbfe085db9d24b3aec9b66348b
DIR parent a48a971ae63b32ce94c1236c05d34d1b25219a84
HTML Author: ThomasV <thomasv@gitorious>
Date: Wed, 7 Nov 2012 20:25:23 +0100
check that histories and transactions are consistent
Diffstat:
M lib/wallet.py | 82 ++++++++++++++++++++++++++-----
1 file changed, 70 insertions(+), 12 deletions(-)
---
DIR diff --git a/lib/wallet.py b/lib/wallet.py
t@@ -538,17 +538,26 @@ class Wallet:
- def receive_tx_callback(self, tx_hash, d):
- #print "updating history for", addr
- #with self.lock:
- self.transactions[tx_hash] = d
+ def receive_tx_callback(self, tx_hash, tx):
+
+ if not self.check_new_tx(tx_hash, tx):
+ print "error: transaction not consistent with history", tx_hash
+ return
+
+ with self.lock:
+ self.transactions[tx_hash] = tx
+
self.update_tx_outputs(tx_hash)
self.save()
def receive_history_callback(self, addr, hist):
- #print "updating history for", addr
+
+ if not self.check_new_history(addr, hist):
+ print "error: history check failed", tx_hash
+ return
+
with self.lock:
self.history[addr] = hist
self.save()
t@@ -557,6 +566,7 @@ class Wallet:
self.verifier.add(tx_hash)
+
def get_tx_history(self):
with self.lock:
lines = self.transactions.values()
t@@ -896,6 +906,53 @@ class Wallet:
+ def is_addr_in_tx(self, addr, tx):
+ found = False
+ for txin in tx.get('inputs'):
+ if addr == txin.get('address'):
+ found = True
+ break
+ for txout in tx.get('outputs'):
+ if addr == txout.get('address'):
+ found = True
+ break
+ return found
+
+
+ def check_new_history(self, addr, hist):
+ # - check that all tx in hist are relevant
+ for tx_hash, height in hist:
+ tx = self.transactions.get(tx_hash)
+ if not tx: continue
+ if not self.is_addr_in_tx(addr,tx):
+ return False
+
+ # todo: check that we are not "orphaning" a transaction
+ # if we are, reject tx if unconfirmed, else reject the server
+
+ return True
+
+
+
+ def check_new_tx(self, tx_hash, tx):
+ # 1 check that tx is referenced in addr_history.
+ addresses = []
+ for addr, hist in self.history.items():
+ for txh, height in hist:
+ if txh == tx_hash:
+ addresses.append(addr)
+
+ if not addresses:
+ return False
+
+ # 2 check that referencing addresses are in the tx
+ for addr in addresses:
+ if not self.is_addr_in_tx(addr, tx):
+ return False
+
+ return True
+
+
class WalletSynchronizer(threading.Thread):
t@@ -915,19 +972,20 @@ class WalletSynchronizer(threading.Thread):
new_addresses = self.wallet.synchronize()
if new_addresses:
self.subscribe_to_addresses(new_addresses)
+ self.wallet.up_to_date = False
+ return
- if self.interface.is_up_to_date('synchronizer'):
- if not self.wallet.up_to_date:
- self.wallet.up_to_date = True
- self.was_updated = True
- self.wallet.up_to_date_event.set()
- else:
+ if not self.interface.is_up_to_date('synchronizer'):
if self.wallet.up_to_date:
self.wallet.up_to_date = False
self.was_updated = True
+ return
+ self.wallet.up_to_date = True
+ self.was_updated = True
+ self.wallet.up_to_date_event.set()
-
+
def subscribe_to_addresses(self, addresses):
messages = []
for addr in addresses: