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mirror of git://holbrook.no/eth-monitor.git synced 2024-11-21 20:06:46 +01:00
eth-monitor/eth_monitor/rules.py

83 lines
2.5 KiB
Python

# standard imports
import logging
import uuid
# external imports
from chainlib.eth.address import is_same_address
logg = logging.getLogger()
class RuleSimple:
def __init__(self, outputs, inputs, executables, description=None):
self.description = description
if self.description == None:
self.description = str(uuid.uuid4())
self.outputs = outputs
self.inputs = inputs
self.executables = executables
def check(self, sender, recipient, tx_hash):
for rule in self.outputs:
if rule != None and is_same_address(sender, rule):
logg.debug('tx {} rule INCLUDE match in SENDER {}'.format(tx_hash, sender))
return True
for rule in self.inputs:
if rule != None and is_same_address(recipient, rule):
logg.debug('tx {} rule INCLUDE match in RECIPIENT {}'.format(tx_hash, recipient))
return True
for rule in self.executables:
if rule != None and is_same_address(recipient, rule):
logg.debug('tx {} rule INCLUDE match in ExECUTABLE {}'.format(tx_hash, recipient))
return True
def __str__(self):
return 'Simple ' + self.description + ' outputs {} inputs {} execs {}'.format(
self.outputs,
self.inputs,
self.executables,
)
class AddressRules:
def __init__(self, include_by_default=False):
self.excludes = []
self.includes = []
self.include_by_default = include_by_default
def exclude(self, rule):
self.excludes.append(rule)
logg.info('cache filter added EXCLUDE rule {}'.format(rule))
def include(self, rule):
self.includes.append(rule)
logg.info('cache filter added EXCLUDE rule {}'.format(rule))
def apply_rules(self, tx):
return self.apply_rules_addresses(tx.outputs[0], tx.inputs[0], tx.hash)
def apply_rules_addresses(self, sender, recipient, tx_hash):
v = self.include_by_default
for rule in self.includes:
if rule.check(sender, recipient, tx_hash):
v = True
logg.info('match in includes rule: {}'.format(rule))
break
for rule in self.excludes:
if rule.check(sender, recipient, tx_hash):
v = False
logg.info('match in excludes rule: {}'.format(rule))
break
return v