3 # Copyright (C) 2014 Ipsilon project Contributors, for license see COPYING
5 from ipsilon.tools.saml2metadata import Metadata
6 from ipsilon.tools.saml2metadata import SAML2_NAMEID_MAP
7 from ipsilon.tools.saml2metadata import SAML2_SERVICE_MAP
8 from ipsilon.tools.certs import Certificate
9 from ipsilon.tools import files
10 from urllib import urlencode
24 HTTPDCONFD = '/etc/httpd/conf.d'
25 SAML2_TEMPLATE = '/usr/share/ipsilon/templates/install/saml2/sp.conf'
26 SAML2_CONFFILE = '/etc/httpd/conf.d/ipsilon-saml.conf'
27 SAML2_HTTPDIR = '/etc/httpd/saml2'
28 SAML2_PROTECTED = '/saml2protected'
30 #Installation arguments
34 logger = logging.getLogger()
38 global logger # pylint: disable=W0603
39 logger = logging.getLogger()
40 lh = logging.StreamHandler(sys.stderr)
45 logger.info('Installing SAML2 Service Provider')
47 if args['saml_idp_metadata'] is None:
48 #TODO: detect via SRV records ?
49 if args['saml_idp_url']:
50 args['saml_idp_metadata'] = ('%s/saml2/metadata' %
51 args['saml_idp_url'].rstrip('/'))
53 raise ValueError('An IDP URL or metadata file/URL is required.')
58 if os.path.exists(args['saml_idp_metadata']):
59 with open(args['saml_idp_metadata']) as f:
61 elif args['saml_idp_metadata'].startswith('file://'):
62 with open(args['saml_idp_metadata'][7:]) as f:
65 r = requests.get(args['saml_idp_metadata'])
68 except Exception, e: # pylint: disable=broad-except
69 logger.error("Failed to retrieve IDP Metadata file!\n" +
70 "Error: [%s]" % repr(e))
74 if not args['saml_no_httpd']:
75 path = os.path.join(SAML2_HTTPDIR, args['hostname'])
76 os.makedirs(path, 0750)
81 if not args['saml_secure_setup']:
86 port_str = ':%s' % args['port']
88 url = '%s://%s%s' % (proto, args['hostname'], port_str)
89 url_sp = url + args['saml_sp']
90 url_logout = url + args['saml_sp_logout']
91 url_post = url + args['saml_sp_post']
96 c.generate('certificate', args['hostname'])
97 m.set_entity_id(url_sp)
99 m.add_service(SAML2_SERVICE_MAP['logout-redirect'], url_logout)
100 m.add_service(SAML2_SERVICE_MAP['response-post'], url_post, index="0")
101 m.add_allowed_name_format(SAML2_NAMEID_MAP[args['saml_nameid']])
102 sp_metafile = os.path.join(path, 'metadata.xml')
103 m.output(sp_metafile)
105 # Register with the IDP if the IDP URL was provided
106 if args['saml_idp_url']:
107 if args['admin_password']:
108 if args['admin_password'] == '-':
109 admin_password = sys.stdin.readline().rstrip('\n')
112 with open(args['admin_password']) as f:
113 admin_password = f.read().rstrip('\n')
114 except Exception as e: # pylint: disable=broad-except
115 logger.error("Failed to read password file!\n" +
118 elif ('IPSILON_ADMIN_PASSWORD' in os.environ) and \
119 (os.environ['IPSILON_ADMIN_PASSWORD']):
120 admin_password = os.environ['IPSILON_ADMIN_PASSWORD']
122 admin_password = getpass.getpass('%s password: ' %
128 with open(sp_metafile) as f:
130 sp_metadata += line.strip()
131 except Exception as e: # pylint: disable=broad-except
132 logger.error("Failed to read SP Metadata file!\n" +
138 saml2_register_sp(args['saml_idp_url'], args['admin_user'],
139 admin_password, args['saml_sp_name'],
141 except Exception as e: # pylint: disable=broad-except
142 logger.error("Failed to register SP with IDP!\n" +
146 if not args['saml_no_httpd']:
147 idp_metafile = os.path.join(path, 'idp-metadata.xml')
148 with open(idp_metafile, 'w+') as f:
151 saml_protect = 'auth'
153 if args['saml_base'] != args['saml_auth']:
154 saml_protect = 'info'
155 saml_auth = '<Location %s>\n' \
156 ' MellonEnable "auth"\n' \
157 ' Header append Cache-Control "no-cache"\n' \
158 '</Location>\n' % args['saml_auth']
161 if args['saml_auth'] == SAML2_PROTECTED:
162 # default location, enable the default page
169 ssl_port = args['port']
173 if args['saml_secure_setup']:
178 samlopts = {'saml_base': args['saml_base'],
179 'saml_protect': saml_protect,
180 'saml_sp_key': c.key,
181 'saml_sp_cert': c.cert,
182 'saml_sp_meta': sp_metafile,
183 'saml_idp_meta': idp_metafile,
184 'saml_sp': args['saml_sp'],
185 'saml_secure_on': saml_secure,
186 'saml_auth': saml_auth,
187 'ssl_require': ssl_require,
188 'ssl_rewrite': ssl_rewrite,
189 'ssl_port': ssl_port,
190 'sp_hostname': args['hostname'],
193 files.write_from_template(SAML2_CONFFILE, SAML2_TEMPLATE, samlopts)
195 files.fix_user_dirs(SAML2_HTTPDIR, args['httpd_user'])
197 logger.info('SAML Service Provider configured.')
198 logger.info('You should be able to restart the HTTPD server and' +
199 ' then access it at %s%s' % (url, args['saml_auth']))
201 logger.info('SAML Service Provider configuration ready.')
202 logger.info('Use the certificate, key and metadata.xml files to' +
203 ' configure your Service Provider')
206 def saml2_register_sp(url, user, password, sp_name, sp_metadata):
207 s = requests.Session()
209 # Authenticate to the IdP
210 form_auth_url = '%s/login/form' % url.rstrip('/')
211 test_auth_url = '%s/login/testauth' % url.rstrip('/')
212 auth_data = {'login_name': user,
213 'login_password': password}
215 r = s.post(form_auth_url, data=auth_data)
216 if r.status_code == 404:
217 r = s.post(test_auth_url, data=auth_data)
219 if r.status_code != 200:
220 raise Exception('Unable to authenticate to IdP (%d)' % r.status_code)
223 sp_url = '%s/rest/providers/saml2/SPS/%s' % (url.rstrip('/'), sp_name)
224 sp_headers = {'Content-type': 'application/x-www-form-urlencoded',
226 sp_data = urlencode({'metadata': sp_metadata})
228 r = s.post(sp_url, headers=sp_headers, data=sp_data)
229 if r.status_code != 201:
230 message = json.loads(r.text)['message']
231 raise Exception('%s' % message)
239 def saml2_uninstall():
241 shutil.rmtree(os.path.join(SAML2_HTTPDIR, args['hostname']))
242 except Exception, e: # pylint: disable=broad-except
245 os.remove(SAML2_CONFFILE)
246 except Exception, e: # pylint: disable=broad-except
251 logger.info('Uninstalling Service Provider')
252 #FXIME: ask confirmation
254 logger.info('Uninstalled SAML2 data')
257 def log_exception(e):
258 if 'debug' in args and args['debug']:
264 def parse_config_profile(args):
265 config = ConfigParser.ConfigParser()
266 files = config.read(args['config_profile'])
268 raise ConfigurationError('Config Profile file %s not found!' %
269 args['config_profile'])
271 if 'globals' in config.sections():
272 G = config.options('globals')
274 val = config.get('globals', g)
282 for k in globals().keys():
283 if k.lower() == g.lower():
287 if 'arguments' in config.sections():
288 A = config.options('arguments')
290 val = config.get('arguments', a)
303 fc = argparse.ArgumentDefaultsHelpFormatter
304 parser = argparse.ArgumentParser(description='Client Install Options',
306 parser.add_argument('--version',
307 action='version', version='%(prog)s 0.1')
308 parser.add_argument('--hostname', default=socket.getfqdn(),
309 help="Machine's fully qualified host name")
310 parser.add_argument('--port', default=None,
311 help="Port number that SP listens on")
312 parser.add_argument('--admin-user', default='admin',
313 help="Account allowed to create a SP")
314 parser.add_argument('--admin-password', default=None,
315 help="File containing the password for the account " +
316 "used to create a SP (- to read from stdin)")
317 parser.add_argument('--httpd-user', default='apache',
318 help="Web server account used to read certs")
319 parser.add_argument('--saml', action='store_true', default=True,
320 help="Whether to install a saml2 SP")
321 parser.add_argument('--saml-idp-url', default=None,
322 help="A URL of the IDP to register the SP with")
323 parser.add_argument('--saml-idp-metadata', default=None,
324 help="A URL pointing at the IDP Metadata (FILE or HTTP)")
325 parser.add_argument('--saml-no-httpd', action='store_true', default=False,
326 help="Do not configure httpd")
327 parser.add_argument('--saml-base', default='/',
328 help="Where saml2 authdata is available")
329 parser.add_argument('--saml-auth', default=SAML2_PROTECTED,
330 help="Where saml2 authentication is enforced")
331 parser.add_argument('--saml-sp', default='/saml2',
332 help="Where saml communication happens")
333 parser.add_argument('--saml-sp-logout', default=None,
334 help="Single Logout URL")
335 parser.add_argument('--saml-sp-post', default=None,
336 help="Post response URL")
337 parser.add_argument('--saml-secure-setup', action='store_true',
338 default=True, help="Turn on all security checks")
339 parser.add_argument('--saml-nameid', default='unspecified',
340 choices=SAML2_NAMEID_MAP.keys(),
341 help="SAML NameID format to use")
342 parser.add_argument('--saml-sp-name', default=None,
343 help="The SP name to register with the IdP")
344 parser.add_argument('--debug', action='store_true', default=False,
345 help="Turn on script debugging")
346 parser.add_argument('--config-profile', default=None,
347 help=argparse.SUPPRESS)
348 parser.add_argument('--uninstall', action='store_true',
349 help="Uninstall the server and all data")
351 args = vars(parser.parse_args())
353 if args['config_profile']:
354 args = parse_config_profile(args)
356 if len(args['hostname'].split('.')) < 2:
357 raise ValueError('Hostname: %s is not a FQDN.' % args['hostname'])
359 if args['port'] and not args['port'].isdigit():
360 raise ValueError('Port number: %s is not an integer.' % args['port'])
362 # Validate that all path options begin with '/'
363 path_args = ['saml_base', 'saml_auth', 'saml_sp', 'saml_sp_logout',
365 for path_arg in path_args:
366 if args[path_arg] is not None and not args[path_arg].startswith('/'):
367 raise ValueError('--%s must begin with a / character.' %
368 path_arg.replace('_', '-'))
370 # The saml_sp setting must be a subpath of saml_base since it is
371 # used as the MellonEndpointPath.
372 if not args['saml_sp'].startswith(args['saml_base']):
373 raise ValueError('--saml-sp must be a subpath of --saml-base.')
375 # The saml_sp_logout and saml_sp_post settings must be subpaths
376 # of saml_sp (the mellon endpoint).
377 path_args = {'saml_sp_logout': 'logout',
378 'saml_sp_post': 'postResponse'}
379 for path_arg, default_path in path_args.items():
380 if args[path_arg] is None:
381 args[path_arg] = '%s/%s' % (args['saml_sp'].rstrip('/'),
384 elif not args[path_arg].startswith(args['saml_sp']):
385 raise ValueError('--%s must be a subpath of --saml-sp' %
386 path_arg.replace('_', '-'))
388 # If saml_idp_url if being used, we require saml_sp_name to
389 # use when registering the SP.
390 if args['saml_idp_url'] and not args['saml_sp_name']:
391 raise ValueError('--saml-sp-name must be specified when using' +
394 # At least one on this list needs to be specified or we do nothing
400 if not present and not args['uninstall']:
401 raise ValueError('Nothing to install, please select a Service type.')
404 if __name__ == '__main__':
410 if 'uninstall' in args and args['uninstall'] is True:
414 except Exception, e: # pylint: disable=broad-except
416 if 'uninstall' in args and args['uninstall'] is True:
417 logging.info('Uninstallation aborted.')
419 logging.info('Installation aborted.')
423 if 'uninstall' in args and args['uninstall'] is True:
424 logging.info('Uninstallation complete.')
426 logging.info('Installation complete.')