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Source code for galaxy.util.sockets

import random
import socket
import sys

from galaxy.util import commands

[docs]def get_ip(): if sys.platform == "darwin": # If we're on OSX it is likely that the docker host is localhost. return socket.gethostbyname(socket.gethostname()) # This method assumes that the ip with default route is the ip we want to return s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) try: # doesn't even have to be reachable s.connect(("", 1)) ip = s.getsockname()[0] except Exception: ip = None finally: s.close() return ip
[docs]def unused_port(range=None): if range: return __unused_port_on_range(range) else: return __unused_port_rangeless()
def __unused_port_rangeless(): # TODO: Allow ranges (though then need to guess and check)... s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind(("localhost", 0)) addr, port = s.getsockname() s.close() return port def __unused_port_on_range(range): assert range[0] and range[1] # Find all ports that are already occupied cmd_netstat = ["netstat", "tuln"] stdout = commands.execute(cmd_netstat) occupied_ports = set() for line in stdout.split("\n"): if line.startswith("tcp") or line.startswith("tcp6"): col = line.split() local_address = col[3] local_port = local_address.split(":")[1] occupied_ports.add(int(local_port)) # Generate random free port number. while True: port = random.randrange(range[0], range[1]) if port not in occupied_ports: break return port