164 lines
5.5 KiB
Python
164 lines
5.5 KiB
Python
###############################################################################
|
|
#
|
|
# The MIT License (MIT)
|
|
#
|
|
# Copyright (c) Crossbar.io Technologies GmbH
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
# THE SOFTWARE.
|
|
#
|
|
###############################################################################
|
|
|
|
|
|
from autobahn.util import public
|
|
|
|
# The Python urlparse module currently does not contain the rs/rss
|
|
# schemes, so we add those dynamically (which is a hack of course).
|
|
#
|
|
# Important: if you change this stuff (you shouldn't), make sure
|
|
# _all_ our unit tests for WS URLs succeed
|
|
#
|
|
from urllib import parse as urlparse
|
|
|
|
wsschemes = ["rs", "rss"]
|
|
urlparse.uses_relative.extend(wsschemes)
|
|
urlparse.uses_netloc.extend(wsschemes)
|
|
urlparse.uses_params.extend(wsschemes)
|
|
urlparse.uses_query.extend(wsschemes)
|
|
urlparse.uses_fragment.extend(wsschemes)
|
|
|
|
__all__ = (
|
|
"create_url",
|
|
"parse_url",
|
|
)
|
|
|
|
|
|
@public
|
|
def create_url(hostname, port=None, isSecure=False):
|
|
"""
|
|
Create a RawSocket URL from components.
|
|
|
|
:param hostname: RawSocket server hostname (for TCP/IP sockets) or
|
|
filesystem path (for Unix domain sockets).
|
|
:type hostname: str
|
|
|
|
:param port: For TCP/IP sockets, RawSocket service port or ``None`` (to select default
|
|
ports ``80`` or ``443`` depending on ``isSecure``. When ``hostname=="unix"``,
|
|
this defines the path to the Unix domain socket instead of a TCP/IP network socket.
|
|
:type port: int or str
|
|
|
|
:param isSecure: Set ``True`` for secure RawSocket (``rss`` scheme).
|
|
:type isSecure: bool
|
|
|
|
:returns: Constructed RawSocket URL.
|
|
:rtype: str
|
|
"""
|
|
# assert type(hostname) == str
|
|
assert type(isSecure) == bool
|
|
|
|
if hostname == 'unix':
|
|
|
|
netloc = "unix:%s" % port
|
|
else:
|
|
assert port is None or (type(port) == int and port in range(0, 65535))
|
|
|
|
if port is not None:
|
|
netloc = "%s:%d" % (hostname, port)
|
|
else:
|
|
if isSecure:
|
|
netloc = "{}:443".format(hostname)
|
|
else:
|
|
netloc = "{}:80".format(hostname)
|
|
|
|
if isSecure:
|
|
scheme = "rss"
|
|
else:
|
|
scheme = "rs"
|
|
|
|
return "{}://{}".format(scheme, netloc)
|
|
|
|
|
|
@public
|
|
def parse_url(url):
|
|
"""
|
|
Parses as RawSocket URL into it's components and returns a tuple:
|
|
|
|
- ``isSecure`` is a flag which is ``True`` for ``rss`` URLs.
|
|
- ``host`` is the hostname or IP from the URL.
|
|
|
|
and for TCP/IP sockets:
|
|
|
|
- ``tcp_port`` is the port from the URL or standard port derived from
|
|
scheme (``rs`` => ``80``, ``rss`` => ``443``).
|
|
|
|
or for Unix domain sockets:
|
|
|
|
- ``uds_path`` is the path on the local host filesystem.
|
|
|
|
:param url: A valid RawSocket URL, i.e. ``rs://localhost:9000`` for TCP/IP sockets or
|
|
``rs://unix:/tmp/file.sock`` for Unix domain sockets (UDS).
|
|
:type url: str
|
|
|
|
:returns: A 3-tuple ``(isSecure, host, tcp_port)`` (TCP/IP) or ``(isSecure, host, uds_path)`` (UDS).
|
|
:rtype: tuple
|
|
"""
|
|
parsed = urlparse.urlparse(url)
|
|
|
|
if parsed.scheme not in ["rs", "rss"]:
|
|
raise Exception("invalid RawSocket URL: protocol scheme '{}' is not for RawSocket".format(parsed.scheme))
|
|
|
|
if not parsed.hostname or parsed.hostname == "":
|
|
raise Exception("invalid RawSocket URL: missing hostname")
|
|
|
|
if parsed.query is not None and parsed.query != "":
|
|
raise Exception("invalid RawSocket URL: non-empty query '{}'".format(parsed.query))
|
|
|
|
if parsed.fragment is not None and parsed.fragment != "":
|
|
raise Exception("invalid RawSocket URL: non-empty fragment '{}'".format(parsed.fragment))
|
|
|
|
if parsed.hostname == "unix":
|
|
# Unix domain sockets sockets
|
|
|
|
# rs://unix:/tmp/file.sock => unix:/tmp/file.sock => /tmp/file.sock
|
|
fp = parsed.netloc + parsed.path
|
|
uds_path = fp.split(':')[1]
|
|
|
|
# note: we don't interpret "uds_path" in any further way: it needs to be
|
|
# a path on the local host with a listening Unix domain sockets at the other end ..
|
|
|
|
return parsed.scheme == "rss", parsed.hostname, uds_path
|
|
|
|
else:
|
|
# TCP/IP sockets
|
|
|
|
if parsed.path is not None and parsed.path != "":
|
|
raise Exception("invalid RawSocket URL: non-empty path '{}'".format(parsed.path))
|
|
|
|
if parsed.port is None or parsed.port == "":
|
|
if parsed.scheme == "rs":
|
|
tcp_port = 80
|
|
else:
|
|
tcp_port = 443
|
|
else:
|
|
tcp_port = int(parsed.port)
|
|
|
|
if tcp_port < 1 or tcp_port > 65535:
|
|
raise Exception("invalid port {}".format(tcp_port))
|
|
|
|
return parsed.scheme == "rss", parsed.hostname, tcp_port
|