Filename: //lib//python3/dist-packages/pysimplesoap/transport.py

#!/usr/bin/python # -*- coding: utf-8 -*- # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as published by the # Free Software Foundation; either version 3, or (at your option) any later # version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License # for more details. """Pythonic simple SOAP Client transport""" import logging import ssl import sys from distutils.version import LooseVersion try: import urllib2 from cookielib import CookieJar except ImportError: from urllib import request as urllib2 from http.cookiejar import CookieJar from . import __author__, __copyright__, __license__, __version__, TIMEOUT from .simplexml import SimpleXMLElement, TYPE_MAP, Struct log = logging.getLogger(__name__) # # Socket wrapper to enable socket.TCP_NODELAY - this greatly speeds up transactions in Linux # WARNING: this will modify the standard library socket module, use with care! # TODO: implement this as a transport faciliy # (to pass options directly to httplib2 or pycurl) # be aware of metaclasses and socks.py (SocksiPy) used by httplib2 if False: import socket realsocket = socket.socket def socketwrap(family=socket.AF_INET, type=socket.SOCK_STREAM, proto=0): sockobj = realsocket(family, type, proto) if type == socket.SOCK_STREAM: sockobj.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) return sockobj socket.socket = socketwrap # # We store metadata about what available transport mechanisms we have available. # _http_connectors = {} # libname: classimpl mapping _http_facilities = {} # functionalitylabel: [sequence of libname] mapping class TransportBase: @classmethod def supports_feature(cls, feature_name): return cls._wrapper_name in _http_facilities[feature_name] # # httplib2 support. # try: import httplib2 if sys.version > '3' and LooseVersion(httplib2.__version__) <= LooseVersion("0.7.7"): import http.client # httplib2 workaround: check_hostname needs a SSL context with either # CERT_OPTIONAL or CERT_REQUIRED # see https://code.google.com/p/httplib2/issues/detail?id=173 orig__init__ = http.client.HTTPSConnection.__init__ def fixer(self, host, port, key_file, cert_file, timeout, context, check_hostname, *args, **kwargs): chk = kwargs.get('disable_ssl_certificate_validation', True) ^ True orig__init__(self, host, port=port, key_file=key_file, cert_file=cert_file, timeout=timeout, context=context, check_hostname=chk) http.client.HTTPSConnection.__init__ = fixer except ImportError: TIMEOUT = None # timeout not supported by urllib2 pass else: class Httplib2Transport(httplib2.Http, TransportBase): _wrapper_version = "httplib2 %s" % httplib2.__version__ _wrapper_name = 'httplib2' def __init__(self, timeout, proxy=None, cacert=None, sessions=False): # httplib2.debuglevel=4 kwargs = {} if proxy: import socks kwargs['proxy_info'] = httplib2.ProxyInfo(proxy_type=socks.PROXY_TYPE_HTTP, **proxy) log.info("using proxy %s" % proxy) # set optional parameters according to supported httplib2 version if LooseVersion(httplib2.__version__) >= LooseVersion('0.3.0'): kwargs['timeout'] = timeout if LooseVersion(httplib2.__version__) >= LooseVersion('0.7.0'): kwargs['disable_ssl_certificate_validation'] = cacert is None kwargs['ca_certs'] = cacert httplib2.Http.__init__(self, **kwargs) _http_connectors['httplib2'] = Httplib2Transport _http_facilities.setdefault('proxy', []).append('httplib2') _http_facilities.setdefault('cacert', []).append('httplib2') import inspect if 'timeout' in inspect.getargspec(httplib2.Http.__init__)[0]: _http_facilities.setdefault('timeout', []).append('httplib2') # # urllib2 support. # class urllib2Transport(TransportBase): _wrapper_version = "urllib2 %s" % urllib2.__version__ _wrapper_name = 'urllib2' def __init__(self, timeout=None, proxy=None, cacert=None, sessions=False): if (timeout is not None) and not self.supports_feature('timeout'): raise RuntimeError('timeout is not supported with urllib2 transport') if proxy: raise RuntimeError('proxy is not supported with urllib2 transport') if cacert: raise RuntimeError('cacert is not support with urllib2 transport') handlers = [] if ((sys.version_info[0] == 2 and sys.version_info >= (2,7,9)) or (sys.version_info[0] == 3 and sys.version_info >= (3,2,0))): context = ssl.create_default_context() context.check_hostname = False context.verify_mode = ssl.CERT_NONE handlers.append(urllib2.HTTPSHandler(context=context)) if sessions: handlers.append(urllib2.HTTPCookieProcessor(CookieJar())) opener = urllib2.build_opener(*handlers) self.request_opener = opener.open self._timeout = timeout def request(self, url, method="GET", body=None, headers={}): req = urllib2.Request(url, body, headers) try: f = self.request_opener(req, timeout=self._timeout) return f.info(), f.read() except urllib2.HTTPError as f: if f.code != 500: raise return f.info(), f.read() _http_connectors['urllib2'] = urllib2Transport _http_facilities.setdefault('sessions', []).append('urllib2') if sys.version_info >= (2, 6): _http_facilities.setdefault('timeout', []).append('urllib2') # # pycurl support. # experimental: pycurl seems faster + better proxy support (NTLM) + ssl features # try: import pycurl except ImportError: pass else: try: from cStringIO import StringIO except ImportError: try: from StringIO import StringIO except ImportError: from io import StringIO class pycurlTransport(TransportBase): _wrapper_version = pycurl.version _wrapper_name = 'pycurl' def __init__(self, timeout, proxy=None, cacert=None, sessions=False): self.timeout = timeout self.proxy = proxy or {} self.cacert = cacert def request(self, url, method, body, headers): c = pycurl.Curl() c.setopt(pycurl.URL, url) if 'proxy_host' in self.proxy: c.setopt(pycurl.PROXY, self.proxy['proxy_host']) if 'proxy_port' in self.proxy: c.setopt(pycurl.PROXYPORT, self.proxy['proxy_port']) if 'proxy_user' in self.proxy: c.setopt(pycurl.PROXYUSERPWD, "%(proxy_user)s:%(proxy_pass)s" % self.proxy) self.buf = StringIO() c.setopt(pycurl.WRITEFUNCTION, self.buf.write) #c.setopt(pycurl.READFUNCTION, self.read) #self.body = StringIO(body) #c.setopt(pycurl.HEADERFUNCTION, self.header) if self.cacert: c.setopt(c.CAINFO, self.cacert) c.setopt(pycurl.SSL_VERIFYPEER, self.cacert and 1 or 0) c.setopt(pycurl.SSL_VERIFYHOST, self.cacert and 2 or 0) c.setopt(pycurl.CONNECTTIMEOUT, self.timeout) c.setopt(pycurl.TIMEOUT, self.timeout) if method == 'POST': c.setopt(pycurl.POST, 1) c.setopt(pycurl.POSTFIELDS, body) if headers: hdrs = ['%s: %s' % (k, v) for k, v in headers.items()] log.debug(hdrs) c.setopt(pycurl.HTTPHEADER, hdrs) c.perform() c.close() return {}, self.buf.getvalue() _http_connectors['pycurl'] = pycurlTransport _http_facilities.setdefault('proxy', []).append('pycurl') _http_facilities.setdefault('cacert', []).append('pycurl') _http_facilities.setdefault('timeout', []).append('pycurl') class DummyTransport: """Testing class to load a xml response""" def __init__(self, xml_response): self.xml_response = xml_response def request(self, location, method, body, headers): log.debug("%s %s", method, location) log.debug(headers) log.debug(body) return {}, self.xml_response def get_http_wrapper(library=None, features=[]): # If we are asked for a specific library, return it. if library is not None: try: return _http_connectors[library] except KeyError: raise RuntimeError('%s transport is not available' % (library,)) # If we haven't been asked for a specific feature either, then just return our favourite # implementation. if not features: return _http_connectors.get('httplib2', _http_connectors['urllib2']) # If we are asked for a connector which supports the given features, then we will # try that. current_candidates = _http_connectors.keys() new_candidates = [] for feature in features: for candidate in current_candidates: if candidate in _http_facilities.get(feature, []): new_candidates.append(candidate) current_candidates = new_candidates new_candidates = [] # Return the first candidate in the list. try: candidate_name = current_candidates[0] except IndexError: raise RuntimeError("no transport available which supports these features: %s" % (features,)) else: return _http_connectors[candidate_name] def set_http_wrapper(library=None, features=[]): """Set a suitable HTTP connection wrapper.""" global Http Http = get_http_wrapper(library, features) return Http def get_Http(): """Return current transport class""" global Http return Http # define the default HTTP connection class (it can be changed at runtime!): set_http_wrapper()

./Ninja\.