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#!/usr/bin/python
#
# Copyright 2011, Infoblox, All Rights Reserved
#
# Open Source, see LICENSE
#
from _ssl import PROTOCOL_SSLv3, PROTOCOL_SSLv23, PROTOCOL_TLSv1
import gevent
import geventhttpclient
from geventhttpclient import HTTPClient
import urllib
import base64
import cStringIO
import sys
from logging import getLogger
log = getLogger(__name__) # when imported, the logger will be named "ifmap.client"
# Import either httplib2 or urllib2 and map to same name
try:
import httplib2 as http_client_lib
Http = http_client_lib.Http
HttpException = http_client_lib.HttpLib2Error
except ImportError:
import urllib2 as http_client_lib
HttpException = (http_client_lib.URLError, http_client_lib.HTTPError)
class Http(): # wrapper to use when httplib2 not available
def request(self, url, method, body, headers):
f = http_client_lib.urlopen(http_client_lib.Request(url, body, headers))
return f.info(), f.read()
#import urllib2 as http_client_lib
#class Http(): # wrapper to use when httplib2 not available
# def request(self, url, method, body, headers):
# f = http_client_lib.urlopen(http_client_lib.Request(url, body, headers))
# return f.info(), f.read()
namespaces = {
'env' : "http://www.w3.org/2003/05/soap-envelope",
'ifmap' : "http://www.trustedcomputinggroup.org/2010/IFMAP/2",
'meta' : "http://www.trustedcomputinggroup.org/2010/IFMAP-METADATA/2"
}
# NOTE(sahid): It seems that the geventhttpclient uses gevent.queue.LifoQueue
# to maintain a pool of connections and according to the doc it is possible
# to configure the maxsize of the queue with None or a value less than 0 to
# set the number of connections ulimited otherwise It is actually not possible
# to set it to None or less than 0 since lock.BoundedSemaphore will return an
# exception. https://github.com/gwik/geventhttpclient/blob/master/src/geventhttpclient/connectionpool.py#L37
concurrency = 1 # arbitrary value since it is not possible to use ulimited.
class AsyncReadWrapper(object):
""" Perform the socket read in a separate greenlet """
def __init__(self, request):
self._greenlet = gevent.spawn(self.AsyncRead, request)
self._content = None
def AsyncRead(self, request):
self._content = request.read()
def __str__(self, *args, **kwargs):
self._greenlet.join()
return self._content
def __repr__(self, *args, **kwargs):
self._greenlet.join()
return self._content
class client:
"""
IF-MAP client
"""
__url = None
__session_id = None
__publisher_id = None
__last_sent = None
__last_received = None
__namespaces = None
__ssl_options = {
'cert_reqs' : gevent.ssl.CERT_NONE,
'ssl_version' : PROTOCOL_SSLv23,
}
if sys.version_info >= (2,7):
__ssl_options['ciphers'] = "RC4-SHA"
__envelope ="""<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope" %(ns)s>
<env:Body>
%(body)s
</env:Body>
</env:Envelope>
"""
def __init__(self, url, user=None, password=None, namespaces={}, ssl_opts=None):
if user and password:
# self.__password_mgr=http_client_lib.HTTPPasswordMgrWithDefaultRealm()
# self.__password_mgr.add_password(None, url, user, password)
# handler = http_client_lib.HTTPBasicAuthHandler(self.__password_mgr)
# opener = http_client_lib.build_opener(handler)
# http_client_lib.install_opener(opener)
#pycurl.global_init(pycurl.GLOBAL_SSL)
pass
#if namespaces:
self.__namespaces = namespaces
if ssl_opts:
self.__ssl_options.update(ssl_opts)
self.__url = url
self.__username = user
self.__password = password
try:
self._http = HTTPClient(*self.__url, ssl = True,
connection_timeout = None,
network_timeout = None,
ssl_options = self.__ssl_options,
insecure = True,
concurrency = concurrency)
except TypeError:
self._http = HTTPClient(*self.__url, ssl = True,
connection_timeout = None,
network_timeout = None,
ssl_options = self.__ssl_options,
concurrency = concurrency)
def last_sent(self):
return self.__last_sent
def last_received(self):
return self.__last_received
def envelope(self, body) :
_ns = ""
for ns_prefix, ns_uri in self.__namespaces.items():
#if ns_prefix == "env": break # don't add the envelope namespace again
if ns_prefix == "env": continue # don't add the envelope namespace again
_ns += "xmlns:"+ns_prefix+'="'+ns_uri+'" '
return str(self.__envelope % {'body':body, 'ns': _ns})
def call(self, method, body):
xml = self.envelope(body)
#headers={
# 'Content-type': 'text/xml; charset="UTF-8"',
# 'Content-length': str(len(xml)),
# "SOAPAction": '"%s"' % (method),
#}
base64string = base64.encodestring('%s:%s' % (self.__username, self.__password)).replace('\n', '')
# pycurl
#headers=[
# 'Content-type: text/xml; charset="UTF-8"',
# 'Content-length: %s' %(str(len(xml))),
# 'Authorization : Basic %s' %(base64string),
# 'SOAPAction: %s' % (method),
#]
# geventhttp
headers={
'Content-type': 'text/xml; charset="UTF-8"',
'Content-length': '%s' %(str(len(xml))),
'Authorization': 'Basic %s' %(base64string),
'SOAPAction': '%s' % (method),
}
try:
log.info("sending IF-MAP message to server")
log.debug("======== sending IF-MAP message ========")
log.debug("\n%s\n", xml)
log.debug("======== /sending IF-MAP message ========")
#response, content = self.http.request(self.__url,"POST", body=xml, headers=headers )
#self.http = pycurl.Curl()
#self.http.setopt(pycurl.URL, self.__url)
#self.http.setopt(pycurl.HTTPHEADER, headers)
#self.http.setopt(pycurl.POSTFIELDS, xml)
#self.http.setopt(pycurl.VERBOSE, True)
#self.http.setopt(pycurl.SSL_VERIFYPEER, 0)
#self.http.setopt(pycurl.SSL_VERIFYHOST, 0)
#content = cStringIO.StringIO()
#self.http.setopt(pycurl.WRITEFUNCTION,
# content.write)
#self.http.perform()
#self.http = HTTPClient(*self.__url, ssl = True,
# ssl_options = {'cert_reqs': gevent.ssl.CERT_NONE,
# 'ssl_version': PROTOCOL_SSLv3})
#response = self.http.post('/', body = xml, headers = headers)
response = self._http.post('/', body = xml, headers = headers)
content = response.read()
self.__last_sent = xml
#self.__last_received = content
#pycurl self.__last_received = content.getvalue()
self.__last_received = content
log.debug("======== received IF-MAP response ========")
#log.debug("\n%s\n", content)
#pycurl log.debug("\n%s\n", content.getvalue())
log.debug("\n%s\n", content)
log.debug("======== /receive IF-MAP response ========")
#return content
#pycurl return content.getvalue()
return content
except HttpException, e:
log.error("HTTP Connection error in IF-MAP client: %s", e.reason)
except Exception as e:
log.error("Uknown error sending IF-MAP message to server %s", str(e))
raise
def call_async_result(self, method, body):
xml = self.envelope(body)
base64string = base64.encodestring('%s:%s' % (self.__username, self.__password)).replace('\n', '')
# geventhttp
headers={
'Content-type': 'text/xml; charset="UTF-8"',
'Content-length': '%s' %(str(len(xml))),
'Authorization': 'Basic %s' %(base64string),
'SOAPAction': '%s' % (method),
}
try:
response = self._http.post('/', body = xml, headers = headers)
content = AsyncReadWrapper(response)
return content
except HttpException, e:
log.error("HTTP Connection error in IF-MAP client: %s", e.reason)
except:
log.error("Uknown error sending IF-MAP message to server")
raise
def set_session_id(self, session_id):
self.__session_id = session_id
def set_publisher_id(self, publisher_id):
self.__publisher_id = publisher_id
def get_session_id(self):
return self.__session_id
def get_publisher_id(self):
return self.__publisher_id
if __name__ == "__main__":
print """The ifmap client library is not meant to be run from the command line or python interpreter
- you should use it by including it in your python software. See testmap.py for an example.
Hint: add this line to use the library - 'from ifmap import ifmapClient' """
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