342 lines
12 KiB
Python
342 lines
12 KiB
Python
# -*- coding: utf-8 -*-
|
|
# 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 version 3 for
|
|
# more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License version 3
|
|
# along with this program; if not, write to the Free Software Foundation, Inc., 51
|
|
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
#
|
|
# (c) 2016 Valentin Samir
|
|
"""Some utils functions for tests"""
|
|
from cas_server.default_settings import settings
|
|
|
|
import django
|
|
from django.test import Client
|
|
from django.template import loader
|
|
from django.utils import timezone
|
|
|
|
import cgi
|
|
import six
|
|
from threading import Thread
|
|
from lxml import etree
|
|
from six.moves import BaseHTTPServer
|
|
from six.moves.urllib.parse import urlparse, parse_qsl, parse_qs
|
|
from datetime import timedelta
|
|
|
|
from cas_server import models
|
|
from cas_server import utils
|
|
|
|
|
|
if django.VERSION < (1, 8):
|
|
from django.template import Context
|
|
else:
|
|
def Context(arg):
|
|
"""
|
|
Starting from django 1.8 render take a dict and deprecated the use of a Context.
|
|
So this is the identity function, only use for compatibility with django 1.7 where
|
|
render MUST take a Context as argument.
|
|
"""
|
|
return arg
|
|
|
|
|
|
def return_unicode(string, charset):
|
|
"""make `string` a unicode if `string` is a unicode or bytes encoded with `charset`"""
|
|
if not isinstance(string, six.text_type):
|
|
return string.decode(charset)
|
|
else:
|
|
return string
|
|
|
|
|
|
def return_bytes(string, charset):
|
|
"""
|
|
make `string` a bytes encoded with `charset` if `string` is a unicode
|
|
or bytes encoded with `charset`
|
|
"""
|
|
if isinstance(string, six.text_type):
|
|
return string.encode(charset)
|
|
else:
|
|
return string
|
|
|
|
|
|
def copy_form(form):
|
|
"""Copy form value into a dict"""
|
|
params = {}
|
|
for field in form:
|
|
if field.value():
|
|
params[field.name] = field.value()
|
|
else:
|
|
params[field.name] = ""
|
|
return params
|
|
|
|
|
|
def get_login_page_params(client=None):
|
|
"""Return a client and the POST params for the client to login"""
|
|
if client is None:
|
|
client = Client()
|
|
response = client.get('/login')
|
|
params = copy_form(response.context["form"])
|
|
return client, params
|
|
|
|
|
|
def get_auth_client(**update):
|
|
"""return a authenticated client"""
|
|
client, params = get_login_page_params()
|
|
params["username"] = settings.CAS_TEST_USER
|
|
params["password"] = settings.CAS_TEST_PASSWORD
|
|
params.update(update)
|
|
|
|
response = client.post('/login', params)
|
|
assert client.session.get("authenticated")
|
|
|
|
if params.get("service"):
|
|
return (client, response)
|
|
else:
|
|
return client
|
|
|
|
|
|
def get_user_ticket_request(service):
|
|
"""Make an auth client to request a ticket for `service`, return the tuple (user, ticket)"""
|
|
client = get_auth_client()
|
|
response = client.get("/login", {"service": service})
|
|
ticket_value = response['Location'].split('ticket=')[-1]
|
|
user = models.User.objects.get(
|
|
username=settings.CAS_TEST_USER,
|
|
session_key=client.session.session_key
|
|
)
|
|
ticket = models.ServiceTicket.objects.get(value=ticket_value)
|
|
return (user, ticket, client)
|
|
|
|
|
|
def get_validated_ticket(service):
|
|
"""Return a tick that has being already validated. Used to test SLO"""
|
|
(ticket, auth_client) = get_user_ticket_request(service)[1:3]
|
|
|
|
client = Client()
|
|
response = client.get('/validate', {'ticket': ticket.value, 'service': service})
|
|
assert (response.status_code == 200)
|
|
assert (response.content == b'yes\ntest\n')
|
|
|
|
ticket = models.ServiceTicket.objects.get(value=ticket.value)
|
|
return (auth_client, ticket)
|
|
|
|
|
|
def get_pgt():
|
|
"""return a dict contening a service, user and PGT ticket for this service"""
|
|
(httpd, host, port) = HttpParamsHandler.run()[0:3]
|
|
service = "http://%s:%s" % (host, port)
|
|
|
|
(user, ticket) = get_user_ticket_request(service)[:2]
|
|
|
|
client = Client()
|
|
client.get('/serviceValidate', {'ticket': ticket.value, 'service': service, 'pgtUrl': service})
|
|
params = httpd.PARAMS
|
|
|
|
params["service"] = service
|
|
params["user"] = user
|
|
|
|
return params
|
|
|
|
|
|
def get_proxy_ticket(service):
|
|
"""Return a ProxyTicket waiting for validation"""
|
|
params = get_pgt()
|
|
|
|
# get a proxy ticket
|
|
client = Client()
|
|
response = client.get('/proxy', {'pgt': params['pgtId'], 'targetService': service})
|
|
root = etree.fromstring(response.content)
|
|
proxy_ticket = root.xpath(
|
|
"//cas:proxyTicket",
|
|
namespaces={'cas': "http://www.yale.edu/tp/cas"}
|
|
)
|
|
proxy_ticket = proxy_ticket[0].text
|
|
ticket = models.ProxyTicket.objects.get(value=proxy_ticket)
|
|
return ticket
|
|
|
|
|
|
class HttpParamsHandler(BaseHTTPServer.BaseHTTPRequestHandler):
|
|
"""
|
|
A simple http server that return 200 on GET or POST
|
|
and store GET or POST parameters. Used in unit tests
|
|
"""
|
|
|
|
def do_GET(self):
|
|
"""Called on a GET request on the BaseHTTPServer"""
|
|
self.send_response(200)
|
|
self.send_header(b"Content-type", "text/plain")
|
|
self.end_headers()
|
|
self.wfile.write(b"ok")
|
|
url = urlparse(self.path)
|
|
params = dict(parse_qsl(url.query))
|
|
self.server.PARAMS = params
|
|
|
|
def do_POST(self):
|
|
"""Called on a POST request on the BaseHTTPServer"""
|
|
ctype, pdict = cgi.parse_header(self.headers.get('content-type'))
|
|
if ctype == 'multipart/form-data':
|
|
postvars = cgi.parse_multipart(self.rfile, pdict)
|
|
elif ctype == 'application/x-www-form-urlencoded':
|
|
length = int(self.headers.get('content-length'))
|
|
postvars = parse_qs(self.rfile.read(length), keep_blank_values=1)
|
|
else:
|
|
postvars = {}
|
|
self.server.PARAMS = postvars
|
|
|
|
def log_message(self, *args):
|
|
"""silent any log message"""
|
|
return
|
|
|
|
@classmethod
|
|
def run(cls, port=0):
|
|
"""Run a BaseHTTPServer using this class as handler"""
|
|
server_class = BaseHTTPServer.HTTPServer
|
|
httpd = server_class(("127.0.0.1", port), cls)
|
|
(host, port) = httpd.socket.getsockname()
|
|
|
|
def lauch():
|
|
"""routine to lauch in a background thread"""
|
|
httpd.handle_request()
|
|
httpd.server_close()
|
|
|
|
httpd_thread = Thread(target=lauch)
|
|
httpd_thread.daemon = True
|
|
httpd_thread.start()
|
|
return (httpd, host, port)
|
|
|
|
|
|
class Http404Handler(HttpParamsHandler):
|
|
"""A simple http server that always return 404 not found. Used in unit tests"""
|
|
def do_GET(self):
|
|
"""Called on a GET request on the BaseHTTPServer"""
|
|
self.send_response(404)
|
|
self.send_header(b"Content-type", "text/plain")
|
|
self.end_headers()
|
|
self.wfile.write(b"error 404 not found")
|
|
|
|
def do_POST(self):
|
|
"""Called on a POST request on the BaseHTTPServer"""
|
|
return self.do_GET()
|
|
|
|
|
|
class DummyCAS(BaseHTTPServer.BaseHTTPRequestHandler):
|
|
"""A dummy CAS that validate for only one (service, ticket) used in federated mode tests"""
|
|
def test_params(self):
|
|
"""check that internal and provided (service, ticket) matches"""
|
|
if (
|
|
self.server.ticket is not None and
|
|
self.params.get("service").encode("ascii") == self.server.service and
|
|
self.params.get("ticket").encode("ascii") == self.server.ticket
|
|
):
|
|
self.server.ticket = None
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def send_headers(self, code, content_type):
|
|
"""send http headers"""
|
|
self.send_response(code)
|
|
self.send_header("Content-type", content_type)
|
|
self.end_headers()
|
|
|
|
def do_GET(self):
|
|
"""Called on a GET request on the BaseHTTPServer"""
|
|
url = urlparse(self.path)
|
|
self.params = dict(parse_qsl(url.query))
|
|
if url.path == "/validate":
|
|
self.send_headers(200, "text/plain; charset=utf-8")
|
|
if self.test_params():
|
|
self.wfile.write(b"yes\n" + self.server.username + b"\n")
|
|
self.server.ticket = None
|
|
else:
|
|
self.wfile.write(b"no\n")
|
|
elif url.path in {
|
|
'/serviceValidate', '/serviceValidate',
|
|
'/p3/serviceValidate', '/p3/proxyValidate'
|
|
}:
|
|
self.send_headers(200, "text/xml; charset=utf-8")
|
|
if self.test_params():
|
|
template = loader.get_template('cas_server/serviceValidate.xml')
|
|
context = Context({
|
|
'username': self.server.username,
|
|
'attributes': self.server.attributes
|
|
})
|
|
self.wfile.write(return_bytes(template.render(context), "utf8"))
|
|
else:
|
|
template = loader.get_template('cas_server/serviceValidateError.xml')
|
|
context = Context({
|
|
'code': 'BAD_SERVICE_TICKET',
|
|
'msg': 'Valids are (%r, %r)' % (self.server.service, self.server.ticket)
|
|
})
|
|
self.wfile.write(return_bytes(template.render(context), "utf8"))
|
|
else:
|
|
self.return_404()
|
|
|
|
def do_POST(self):
|
|
"""Called on a POST request on the BaseHTTPServer"""
|
|
url = urlparse(self.path)
|
|
self.params = dict(parse_qsl(url.query))
|
|
if url.path == "/samlValidate":
|
|
self.send_headers(200, "text/xml; charset=utf-8")
|
|
length = int(self.headers.get('content-length'))
|
|
root = etree.fromstring(self.rfile.read(length))
|
|
auth_req = root.getchildren()[1].getchildren()[0]
|
|
ticket = auth_req.getchildren()[0].text.encode("ascii")
|
|
if (
|
|
self.server.ticket is not None and
|
|
self.params.get("TARGET").encode("ascii") == self.server.service and
|
|
ticket == self.server.ticket
|
|
):
|
|
self.server.ticket = None
|
|
template = loader.get_template('cas_server/samlValidate.xml')
|
|
context = Context({
|
|
'IssueInstant': timezone.now().isoformat(),
|
|
'expireInstant': (timezone.now() + timedelta(seconds=60)).isoformat(),
|
|
'Recipient': self.server.service,
|
|
'ResponseID': utils.gen_saml_id(),
|
|
'username': self.server.username,
|
|
'attributes': self.server.attributes,
|
|
})
|
|
self.wfile.write(return_bytes(template.render(context), "utf8"))
|
|
else:
|
|
template = loader.get_template('cas_server/samlValidateError.xml')
|
|
context = Context({
|
|
'IssueInstant': timezone.now().isoformat(),
|
|
'ResponseID': utils.gen_saml_id(),
|
|
'code': 'BAD_SERVICE_TICKET',
|
|
'msg': 'Valids are (%r, %r)' % (self.server.service, self.server.ticket)
|
|
})
|
|
self.wfile.write(return_bytes(template.render(context), "utf8"))
|
|
else:
|
|
self.return_404()
|
|
|
|
def return_404(self):
|
|
"""return a 404 error"""
|
|
self.send_headers(404, "text/plain; charset=utf-8")
|
|
self.wfile.write("not found")
|
|
|
|
def log_message(self, *args):
|
|
"""silent any log message"""
|
|
return
|
|
|
|
@classmethod
|
|
def run(cls, service, ticket, username, attributes, port=0):
|
|
"""Run a BaseHTTPServer using this class as handler"""
|
|
server_class = BaseHTTPServer.HTTPServer
|
|
httpd = server_class(("127.0.0.1", port), cls)
|
|
httpd.service = service
|
|
httpd.ticket = ticket
|
|
httpd.username = username
|
|
httpd.attributes = attributes
|
|
(host, port) = httpd.socket.getsockname()
|
|
|
|
def lauch():
|
|
"""routine to lauch in a background thread"""
|
|
httpd.handle_request()
|
|
httpd.server_close()
|
|
|
|
httpd_thread = Thread(target=lauch)
|
|
httpd_thread.daemon = True
|
|
httpd_thread.start()
|
|
return (httpd, host, port)
|