139 lines
4.3 KiB
Python
Executable File
139 lines
4.3 KiB
Python
Executable File
# 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 typing import Iterable
|
|
from typing import List
|
|
from typing import Optional
|
|
from typing import Union
|
|
|
|
from selenium.types import AnyKey
|
|
from selenium.webdriver.common.keys import Keys
|
|
|
|
_is_connectable_exceptions = (socket.error, ConnectionResetError)
|
|
|
|
|
|
def free_port() -> int:
|
|
"""Determines a free port using sockets."""
|
|
free_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
free_socket.bind(("127.0.0.1", 0))
|
|
free_socket.listen(5)
|
|
port: int = free_socket.getsockname()[1]
|
|
free_socket.close()
|
|
return port
|
|
|
|
|
|
def find_connectable_ip(host: Union[str, bytes, bytearray, None], port: Optional[int] = None) -> Optional[str]:
|
|
"""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: str, port: int) -> str:
|
|
"""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 f"[{host}]:{port}"
|
|
return f"{host}:{port}"
|
|
|
|
|
|
def is_connectable(port: int, host: Optional[str] = "localhost") -> bool:
|
|
"""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 _is_connectable_exceptions:
|
|
result = False
|
|
finally:
|
|
if socket_:
|
|
socket_.close()
|
|
return result
|
|
|
|
|
|
def is_url_connectable(port: Union[int, str]) -> bool:
|
|
"""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.
|
|
"""
|
|
from urllib import request as url_request
|
|
|
|
try:
|
|
res = url_request.urlopen(f"http://127.0.0.1:{port}/status")
|
|
return res.getcode() == 200
|
|
except Exception:
|
|
return False
|
|
|
|
|
|
def keys_to_typing(value: Iterable[AnyKey]) -> List[str]:
|
|
"""Processes the values that will be typed in the element."""
|
|
characters: List[str] = []
|
|
for val in value:
|
|
if isinstance(val, Keys):
|
|
# Todo: Does this even work?
|
|
characters.append(val)
|
|
elif isinstance(val, (int, float)):
|
|
characters.extend(str(val))
|
|
else:
|
|
characters.extend(val)
|
|
return characters
|