"""
Create bitmessage protocol command packets
import struct
import addresses
from network.constants import MAX_ADDR_COUNT
from network.node import Peer
from protocol import CreatePacket, encodeHost
def assemble_addr(peerList):
"""Create address command"""
if isinstance(peerList, Peer):
peerList = [peerList]
if not peerList:
return bytes()
retval = bytes()
for i in range(0, len(peerList), MAX_ADDR_COUNT):
payload = addresses.encodeVarint(len(peerList[i:i + MAX_ADDR_COUNT]))
for stream, peer, timestamp in peerList[i:i + MAX_ADDR_COUNT]:
payload += struct.pack(
'>Q', int(timestamp)) # 64-bit time
payload += struct.pack('>I', stream)
# service bit flags offered by this node
payload += struct.pack('>q', 1)
payload += encodeHost(peer.host)
# remote port
payload += struct.pack('>H', peer.port)
retval += CreatePacket('addr', payload)
return retval
