def main():
w3 = Web3(HTTPProvider('http://localhost:8545'))
print(w3.admin.peers)
print('Peers:')
for peer in w3.admin.peers:
print(' -> ' + peer['network']['remoteAddress'] + ' ' + peer['name'] +
' ' + str(peer['caps']))
shh = Shh(w3)
print('Whisper version: ' + shh.version)
print('Whisper info: [memory: ' + str(shh.info.memory) + ', messages: ' +
str(shh.info.messages) + ', max_message_size: ' +
str(shh.info.maxMessageSize) + ', min_pow: ' + str(shh.info.minPow))
symKeyID = shh.generateSymKeyFromPassword(
'shh!! this is a secret password')
print('Identity: ' + symKeyID)
print('Symmetric key: ' + shh.getSymKey(symKeyID))
result = shh.post({
'payload': Web3.toHex(text='Hello world!'),
'symKeyID': symKeyID,
'topic': '0x12340000',
'powTarget': 2.5,
'powTime': 2
})
print('Message sent: ' + str(result))
class Bot(threading.Thread):
def __init__(self, name):
super(Bot, self).__init__()
self.name = name
self.shh = Shh(Web3(HTTPProvider('http://localhost:8545')))
print(self.name + ': Whisper version: ' + self.shh.version)
print(self.name + ': Whisper info: [memory: ' +
str(self.shh.info.memory) + ', messages: ' +
str(self.shh.info.messages) + ', max_message_size: ' +
str(self.shh.info.maxMessageSize) + ', min_pow: ' +
str(self.shh.info.minPow))
self.symKeyID = self.shh.generateSymKeyFromPassword(
'shh!! this is a secret password')
print(self.name + ': Identity: ' + self.symKeyID)
print(self.name + ': Symmetric key: ' +
self.shh.getSymKey(self.symKeyID))
def filter(self):
message_filter = self.shh.newMessageFilter({
'topic': '0x12340000',
'symKeyID': self.symKeyID
})
return message_filter
def run(self):
filter_id = self.filter().filter_id
print(self.name + ': Waiting for messages...')
while True:
messages = self.shh.getMessages(filter_id)
for message in messages:
print(self.name + ': Received message: ' +
Web3.toText(message['payload']))
print(self.name + ': Envelope: ' + str(message))
time.sleep(0.3)
