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# Licensed to the Software Freedom Conservancy (SFC) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The SFC licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
"""
The Utils methods.
"""
import socket
from selenium.webdriver.common.keys import Keys
try:
basestring
except NameError:
# Python 3
basestring = str
def free_port():
"""
Determines a free port using sockets.
"""
free_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
free_socket.bind(('0.0.0.0', 0))
free_socket.listen(5)
port = free_socket.getsockname()[1]
free_socket.close()
return port
def find_connectable_ip(host, port=None):
"""Resolve a hostname to an IP, preferring IPv4 addresses.
We prefer IPv4 so that we don't change behavior from previous IPv4-only
implementations, and because some drivers (e.g., FirefoxDriver) do not
support IPv6 connections.
If the optional port number is provided, only IPs that listen on the given
port are considered.
:Args:
- host - A hostname.
- port - Optional port number.
:Returns:
A single IP address, as a string. If any IPv4 address is found, one is
returned. Otherwise, if any IPv6 address is found, one is returned. If
neither, then None is returned.
"""
try:
addrinfos = socket.getaddrinfo(host, None)
except socket.gaierror:
return None
ip = None
for family, _, _, _, sockaddr in addrinfos:
connectable = True
if port:
connectable = is_connectable(port, sockaddr[0])
if connectable and family == socket.AF_INET:
return sockaddr[0]
if connectable and not ip and family == socket.AF_INET6:
ip = sockaddr[0]
return ip
def join_host_port(host, port):
"""Joins a hostname and port together.
This is a minimal implementation intended to cope with IPv6 literals. For
example, _join_host_port('::1', 80) == '[::1]:80'.
:Args:
- host - A hostname.
- port - An integer port.
"""
if ':' in host and not host.startswith('['):
return '[%s]:%d' % (host, port)
return '%s:%d' % (host, port)
def is_connectable(port, host="localhost"):
"""
Tries to connect to the server at port to see if it is running.
:Args:
- port - The port to connect.
"""
socket_ = None
try:
socket_ = socket.create_connection((host, port), 1)
result = True
except socket.error:
result = False
finally:
if socket_:
socket_.close()
return result
def is_url_connectable(port):
"""
Tries to connect to the HTTP server at /status path
and specified port to see if it responds successfully.
:Args:
- port - The port to connect.
"""
try:
from urllib import request as url_request
except ImportError:
import urllib2 as url_request
try:
res = url_request.urlopen("http://127.0.0.1:%s/status" % port)
if res.getcode() == 200:
return True
else:
return False
except Exception:
return False
def keys_to_typing(value):
"""Processes the values that will be typed in the element."""
typing = []
for val in value:
if isinstance(val, Keys):
typing.append(val)
elif isinstance(val, int):
val = str(val)
for i in range(len(val)):
typing.append(val[i])
else:
for i in range(len(val)):
typing.append(val[i])
return typing
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