def authn_statement(authn_class=None,
authn_auth=None,
authn_decl=None,
authn_decl_ref=None,
authn_instant="",
subject_locality="",
session_not_on_or_after=None):
"""
Construct the AuthnStatement
:param authn_class: Authentication Context Class reference
:param authn_auth: Authenticating Authority
:param authn_decl: Authentication Context Declaration
:param authn_decl_ref: Authentication Context Declaration reference
:param authn_instant: When the Authentication was performed.
Assumed to be seconds since the Epoch.
:param subject_locality: Specifies the DNS domain name and IP address
for the system from which the assertion subject was apparently
authenticated.
:return: An AuthnContext instance
"""
if authn_instant:
_instant = instant(time_stamp=authn_instant)
else:
_instant = instant()
if authn_class:
res = factory(saml.AuthnStatement,
authn_instant=_instant,
session_index=sid(),
session_not_on_or_after=session_not_on_or_after,
authn_context=_authn_context_class_ref(
authn_class, authn_auth))
elif authn_decl:
res = factory(saml.AuthnStatement,
authn_instant=_instant,
session_index=sid(),
session_not_on_or_after=session_not_on_or_after,
authn_context=_authn_context_decl(
authn_decl, authn_auth))
elif authn_decl_ref:
res = factory(saml.AuthnStatement,
authn_instant=_instant,
session_index=sid(),
session_not_on_or_after=session_not_on_or_after,
authn_context=_authn_context_decl_ref(
authn_decl_ref, authn_auth))
else:
res = factory(saml.AuthnStatement,
authn_instant=_instant,
session_index=sid(),
session_not_on_or_after=session_not_on_or_after)
if subject_locality:
res.subject_locality = saml.SubjectLocality(text=subject_locality)
return res
def authn_statement(authn_class=None, authn_auth=None,
authn_decl=None, authn_decl_ref=None, authn_instant="",
subject_locality="", session_not_on_or_after=None):
"""
Construct the AuthnStatement
:param authn_class: Authentication Context Class reference
:param authn_auth: Authenticating Authority
:param authn_decl: Authentication Context Declaration
:param authn_decl_ref: Authentication Context Declaration reference
:param authn_instant: When the Authentication was performed.
Assumed to be seconds since the Epoch.
:param subject_locality: Specifies the DNS domain name and IP address
for the system from which the assertion subject was apparently
authenticated.
:return: An AuthnContext instance
"""
if authn_instant:
_instant = instant(time_stamp=authn_instant)
else:
_instant = instant()
if authn_class:
res = factory(
saml.AuthnStatement,
authn_instant=_instant,
session_index=sid(),
session_not_on_or_after=session_not_on_or_after,
authn_context=_authn_context_class_ref(
authn_class, authn_auth))
elif authn_decl:
res = factory(
saml.AuthnStatement,
authn_instant=_instant,
session_index=sid(),
session_not_on_or_after=session_not_on_or_after,
authn_context=_authn_context_decl(authn_decl, authn_auth))
elif authn_decl_ref:
res = factory(
saml.AuthnStatement,
authn_instant=_instant,
session_index=sid(),
session_not_on_or_after=session_not_on_or_after,
authn_context=_authn_context_decl_ref(authn_decl_ref,
authn_auth))
else:
res = factory(
saml.AuthnStatement,
authn_instant=_instant,
session_index=sid(),
session_not_on_or_after=session_not_on_or_after)
if subject_locality:
res.subject_locality = saml.SubjectLocality(text=subject_locality)
return res
def test_create_artifact_resolve():
b64art = create_artifact(SP, "aabbccddeeffgghhiijj", 1)
artifact = base64.b64decode(b64art)
#assert artifact[:2] == '\x00\x04'
#assert int(artifact[2:4]) == 0
#
s = sha1(SP.encode('ascii'))
assert artifact[4:24] == s.digest()
with closing(Server(config_file="idp_all_conf")) as idp:
typecode = artifact[:2]
assert typecode == ARTIFACT_TYPECODE
destination = idp.artifact2destination(b64art, "spsso")
msg_id, msg = idp.create_artifact_resolve(b64art, destination, sid())
print(msg)
args = idp.use_soap(msg, destination, None, False)
sp = Saml2Client(config_file="servera_conf")
ar = sp.parse_artifact_resolve(args["data"])
print(ar)
assert ar.artifact.text == b64art
def test_create_artifact_resolve():
b64art = create_artifact(SP, "aabbccddeeffgghhiijj", 1)
artifact = base64.b64decode(b64art)
#assert artifact[:2] == '\x00\x04'
#assert int(artifact[2:4]) == 0
#
s = sha1(SP.encode('ascii'))
assert artifact[4:24] == s.digest()
with closing(Server(config_file="idp_all_conf")) as idp:
typecode = artifact[:2]
assert typecode == ARTIFACT_TYPECODE
destination = idp.artifact2destination(b64art, "spsso")
msg_id, msg = idp.create_artifact_resolve(b64art, destination, sid())
print(msg)
args = idp.use_soap(msg, destination, None, False)
sp = Saml2Client(config_file="servera_conf")
ar = sp.parse_artifact_resolve(args["data"])
print(ar)
assert ar.artifact.text == b64art
def entities_descriptor(eds, valid_for, name, ident, sign, secc, sign_alg=None,
digest_alg=None):
entities = md.EntitiesDescriptor(entity_descriptor=eds)
if valid_for:
entities.valid_until = in_a_while(hours=valid_for)
if name:
entities.name = name
if ident:
entities.id = ident
if sign:
if not ident:
ident = sid()
if not secc.key_file:
raise SAMLError("If you want to do signing you should define " +
"a key to sign with")
if not secc.my_cert:
raise SAMLError("If you want to do signing you should define " +
"where your public key are")
entities.signature = pre_signature_part(ident, secc.my_cert, 1,
sign_alg=sign_alg,
digest_alg=digest_alg)
entities.id = ident
xmldoc = secc.sign_statement("%s" % entities, class_name(entities))
entities = md.entities_descriptor_from_string(xmldoc)
else:
xmldoc = None
return entities, xmldoc
def sign_entity_descriptor(edesc, ident, secc, sign_alg=None, digest_alg=None):
"""
:param edesc: EntityDescriptor instance
:param ident: EntityDescriptor identifier
:param secc: Security context
:return: Tuple with EntityDescriptor instance and Signed XML document
"""
if not ident:
ident = sid()
edesc.signature = pre_signature_part(ident, secc.my_cert, 1, sign_alg=sign_alg, digest_alg=digest_alg)
edesc.id = ident
xmldoc = secc.sign_statement("%s" % edesc, class_name(edesc))
edesc = md.entity_descriptor_from_string(xmldoc)
return edesc, xmldoc
def sign_entity_descriptor(edesc, ident, secc, sign_alg=None, digest_alg=None):
"""
:param edesc: EntityDescriptor instance
:param ident: EntityDescriptor identifier
:param secc: Security context
:return: Tuple with EntityDescriptor instance and Signed XML document
"""
if not ident:
ident = sid()
edesc.signature = pre_signature_part(ident,
secc.my_cert,
1,
sign_alg=sign_alg,
digest_alg=digest_alg)
edesc.id = ident
xmldoc = secc.sign_statement("%s" % edesc, class_name(edesc))
edesc = md.entity_descriptor_from_string(xmldoc)
return edesc, xmldoc
def entities_descriptor(eds,
valid_for,
name,
ident,
sign,
secc,
sign_alg=None,
digest_alg=None):
entities = md.EntitiesDescriptor(entity_descriptor=eds)
if valid_for:
entities.valid_until = in_a_while(hours=valid_for)
if name:
entities.name = name
if ident:
entities.id = ident
if sign:
if not ident:
ident = sid()
if not secc.key_file:
raise SAMLError("If you want to do signing you should define " +
"a key to sign with")
if not secc.my_cert:
raise SAMLError("If you want to do signing you should define " +
"where your public key are")
entities.signature = pre_signature_part(ident,
secc.my_cert,
1,
sign_alg=sign_alg,
digest_alg=digest_alg)
entities.id = ident
xmldoc = secc.sign_statement("%s" % entities, class_name(entities))
entities = md.entities_descriptor_from_string(xmldoc)
else:
xmldoc = None
return entities, xmldoc
def _pick_idp(self, environ, came_from):
"""
If more than one idp and if none is selected, I have to do wayf or
disco
"""
# check headers to see if it's an ECP request
# headers = {
# 'Accept' : 'text/html; application/vnd.paos+xml',
# 'PAOS' : 'ver="%s";"%s"' % (paos.NAMESPACE,
# SERVICE)
# }
_cli = self.saml_client
logger.info("[_pick_idp] %s", environ)
if "HTTP_PAOS" in environ:
if environ["HTTP_PAOS"] == PAOS_HEADER_INFO:
if MIME_PAOS in environ["HTTP_ACCEPT"]:
# Where should I redirect the user to
# entityid -> the IdP to use
# relay_state -> when back from authentication
logger.info("- ECP client detected -")
_relay_state = construct_came_from(environ)
_entityid = _cli.config.ecp_endpoint(environ["REMOTE_ADDR"])
if not _entityid:
return -1, HTTPInternalServerError(detail="No IdP to talk to")
logger.info("IdP to talk to: %s", _entityid)
return ecp.ecp_auth_request(_cli, _entityid, _relay_state)
else:
return -1, HTTPInternalServerError(detail="Faulty Accept header")
else:
return -1, HTTPInternalServerError(detail="unknown ECP version")
idps = self.metadata.with_descriptor("idpsso")
logger.info("IdP URL: %s", idps)
idp_entity_id = query = None
for key in ["s2repoze.body", "QUERY_STRING"]:
query = environ.get(key)
if query:
try:
_idp_entity_id = dict(parse_qs(query))[self.idp_query_param][0]
if _idp_entity_id in idps:
idp_entity_id = _idp_entity_id
break
except KeyError:
logger.debug("No IdP entity ID in query: %s", query)
pass
if idp_entity_id is None:
if len(idps) == 1:
# idps is a dictionary
idp_entity_id = idps.keys()[0]
elif not len(idps):
return -1, HTTPInternalServerError(detail="Misconfiguration")
else:
idp_entity_id = ""
logger.info("ENVIRON: %s", environ)
if self.wayf:
if query:
try:
wayf_selected = dict(parse_qs(query))["wayf_selected"][0]
except KeyError:
return self._wayf_redirect(came_from)
idp_entity_id = wayf_selected
else:
return self._wayf_redirect(came_from)
elif self.discosrv:
if query:
idp_entity_id = _cli.parse_discovery_service_response(
query=environ.get("QUERY_STRING")
)
else:
sid_ = sid()
self.outstanding_queries[sid_] = came_from
logger.debug("Redirect to Discovery Service function")
eid = _cli.config.entityid
ret = _cli.config.getattr("endpoints", "sp")[
"discovery_response"
][0][0]
ret += "?sid=%s" % sid_
loc = _cli.create_discovery_service_request(
self.discosrv, eid, **{"return": ret}
)
return -1, SeeOther(loc)
else:
return -1, HTTPNotImplemented(detail="No WAYF or DJ present!")
logger.info("Chosen IdP: '%s'", idp_entity_id)
return 0, idp_entity_id
def _wayf_redirect(self, came_from):
sid_ = sid()
self.outstanding_queries[sid_] = came_from
logger.info("Redirect to WAYF function: %s", self.wayf)
return -1, HTTPSeeOther(headers=[("Location", "%s?%s" % (self.wayf, sid_))])
def _pick_idp(self, came_from):
"""
If more than one idp and if none is selected, I have to do wayf or
disco
"""
_cli = self.sp
logger.debug("[_pick_idp] %s", self.environ)
if "HTTP_PAOS" in self.environ:
if self.environ["HTTP_PAOS"] == PAOS_HEADER_INFO:
if MIME_PAOS in self.environ["HTTP_ACCEPT"]:
# Where should I redirect the user to
# entityid -> the IdP to use
# relay_state -> when back from authentication
logger.debug("- ECP client detected -")
_rstate = rndstr()
self.cache.relay_state[_rstate] = geturl(self.environ)
_entityid = _cli.config.ecp_endpoint(self.environ["REMOTE_ADDR"])
if not _entityid:
return -1, ServiceError("No IdP to talk to")
logger.debug("IdP to talk to: %s", _entityid)
return ecp.ecp_auth_request(_cli, _entityid, _rstate)
else:
return -1, ServiceError("Faulty Accept header")
else:
return -1, ServiceError("unknown ECP version")
# Find all IdPs
idps = self.sp.metadata.with_descriptor("idpsso")
idp_entity_id = None
kaka = self.environ.get("HTTP_COOKIE", "")
if kaka:
try:
(idp_entity_id, _) = parse_cookie("ve_disco", "SEED_SAW", kaka)
except ValueError:
pass
except TypeError:
pass
# Any specific IdP specified in a query part
query = self.environ.get("QUERY_STRING")
if not idp_entity_id and query:
try:
_idp_entity_id = dict(parse_qs(query))[self.idp_query_param][0]
if _idp_entity_id in idps:
idp_entity_id = _idp_entity_id
except KeyError:
logger.debug("No IdP entity ID in query: %s", query)
pass
if not idp_entity_id:
if self.wayf:
if query:
try:
wayf_selected = dict(parse_qs(query))["wayf_selected"][0]
except KeyError:
return self._wayf_redirect(came_from)
idp_entity_id = wayf_selected
else:
return self._wayf_redirect(came_from)
elif self.discosrv:
if query:
idp_entity_id = _cli.parse_discovery_service_response(
query=self.environ.get("QUERY_STRING")
)
if not idp_entity_id:
sid_ = sid()
self.cache.outstanding_queries[sid_] = came_from
logger.debug("Redirect to Discovery Service function")
eid = _cli.config.entityid
ret = _cli.config.getattr("endpoints", "sp")["discovery_response"][
0
][0]
ret += "?sid=%s" % sid_
loc = _cli.create_discovery_service_request(
self.discosrv, eid, **{"return": ret}
)
return -1, SeeOther(loc)
elif len(idps) == 1:
# idps is a dictionary
idp_entity_id = list(idps.keys())[0]
elif not len(idps):
return -1, ServiceError("Misconfiguration")
else:
return -1, NotImplemented("No WAYF or DS present!")
logger.info("Chosen IdP: '%s'", idp_entity_id)
return 0, idp_entity_id
def do_attribute_query(self, entityid, subject_id,
attribute=None, sp_name_qualifier=None,
name_qualifier=None, nameid_format=None,
real_id=None, consent=None, extensions=None,
sign=False, binding=BINDING_SOAP, nsprefix=None):
""" Does a attribute request to an attribute authority, this is
by default done over SOAP.
:param entityid: To whom the query should be sent
:param subject_id: The identifier of the subject
:param attribute: A dictionary of attributes and values that is
asked for
:param sp_name_qualifier: The unique identifier of the
service provider or affiliation of providers for whom the
identifier was generated.
:param name_qualifier: The unique identifier of the identity
provider that generated the identifier.
:param nameid_format: The format of the name ID
:param real_id: The identifier which is the key to this entity in the
identity database
:param binding: Which binding to use
:param nsprefix: Namespace prefixes preferred before those automatically
produced.
:return: The attributes returned if BINDING_SOAP was used.
HTTP args if BINDING_HTT_POST was used.
"""
if real_id:
response_args = {"real_id": real_id}
else:
response_args = {}
if not binding:
binding, destination = self.pick_binding("attribute_service",
None,
"attribute_authority",
entity_id=entityid)
else:
srvs = self.metadata.attribute_service(entityid, binding)
if srvs is []:
raise SAMLError("No attribute service support at entity")
destination = destinations(srvs)[0]
if binding == BINDING_SOAP:
return self._use_soap(destination, "attribute_query",
consent=consent, extensions=extensions,
sign=sign, subject_id=subject_id,
attribute=attribute,
sp_name_qualifier=sp_name_qualifier,
name_qualifier=name_qualifier,
format=nameid_format,
response_args=response_args)
elif binding == BINDING_HTTP_POST:
mid = sid()
query = self.create_attribute_query(destination, subject_id,
attribute, mid, consent,
extensions, sign, nsprefix)
self.state[query.id] = {"entity_id": entityid,
"operation": "AttributeQuery",
"subject_id": subject_id,
"sign": sign}
relay_state = self._relay_state(query.id)
return self.apply_binding(binding, "%s" % query, destination,
relay_state, sign=sign)
else:
raise SAMLError("Unsupported binding")
def test_artifact_flow():
#SP = 'urn:mace:example.com:saml:roland:sp'
sp = Saml2Client(config_file="servera_conf")
with closing(Server(config_file="idp_all_conf")) as idp:
# original request
binding, destination = sp.pick_binding("single_sign_on_service",
entity_id=idp.config.entityid)
relay_state = "RS0"
req_id, req = sp.create_authn_request(destination, id="id1")
artifact = sp.use_artifact(req, 1)
binding, destination = sp.pick_binding("single_sign_on_service",
[BINDING_HTTP_ARTIFACT],
entity_id=idp.config.entityid)
hinfo = sp.apply_binding(binding, artifact, destination, relay_state)
# ========== @IDP ============
artifact2 = get_msg(hinfo, binding)
assert artifact == artifact2
# The IDP now wants to replace the artifact with the real request
destination = idp.artifact2destination(artifact2, "spsso")
msg_id, msg = idp.create_artifact_resolve(artifact2, destination, sid())
hinfo = idp.use_soap(msg, destination, None, False)
# ======== @SP ==========
msg = get_msg(hinfo, BINDING_SOAP)
ar = sp.parse_artifact_resolve(msg)
assert ar.artifact.text == artifact
# The SP picks the request out of the repository with the artifact as the key
oreq = sp.artifact[ar.artifact.text]
# Should be the same as req above
# Returns the information over the existing SOAP connection so
# no transport information needed
msg = sp.create_artifact_response(ar, ar.artifact.text)
hinfo = sp.use_soap(msg, destination)
# ========== @IDP ============
msg = get_msg(hinfo, BINDING_SOAP)
# The IDP untangles the request from the artifact resolve response
spreq = idp.parse_artifact_resolve_response(msg)
# should be the same as req above
assert spreq.id == req.id
# That was one way, the Request from the SP
# ---------------------------------------------#
# Now for the other, the response from the IDP
name_id = idp.ident.transient_nameid(sp.config.entityid, "derek")
resp_args = idp.response_args(spreq, [BINDING_HTTP_POST])
response = idp.create_authn_response({"eduPersonEntitlement": "Short stop",
"surName": "Jeter", "givenName": "Derek",
"mail": "*****@*****.**",
"title": "The man"},
name_id=name_id,
authn=AUTHN,
**resp_args)
print(response)
# with the response in hand create an artifact
artifact = idp.use_artifact(response, 1)
binding, destination = sp.pick_binding("single_sign_on_service",
[BINDING_HTTP_ARTIFACT],
entity_id=idp.config.entityid)
hinfo = sp.apply_binding(binding, "%s" % artifact, destination, relay_state,
response=True)
# ========== SP =========
artifact3 = get_msg(hinfo, binding)
assert artifact == artifact3
destination = sp.artifact2destination(artifact3, "idpsso")
# Got an artifact want to replace it with the real message
msg_id, msg = sp.create_artifact_resolve(artifact3, destination, sid())
print(msg)
hinfo = sp.use_soap(msg, destination, None, False)
# ======== IDP ==========
msg = get_msg(hinfo, BINDING_SOAP)
ar = idp.parse_artifact_resolve(msg)
print(ar)
assert ar.artifact.text == artifact3
# The IDP retrieves the response from the database using the artifact as the key
#oreq = idp.artifact[ar.artifact.text]
binding, destination = idp.pick_binding("artifact_resolution_service",
entity_id=sp.config.entityid)
resp = idp.create_artifact_response(ar, ar.artifact.text)
hinfo = idp.use_soap(resp, destination)
# ========== SP ============
msg = get_msg(hinfo, BINDING_SOAP)
sp_resp = sp.parse_artifact_resolve_response(msg)
assert sp_resp.id == response.id
def _pick_idp(self, environ, came_from):
"""
If more than one idp and if none is selected, I have to do wayf or
disco
"""
# check headers to see if it's an ECP request
# headers = {
# 'Accept' : 'text/html; application/vnd.paos+xml',
# 'PAOS' : 'ver="%s";"%s"' % (paos.NAMESPACE,
# SERVICE)
# }
_cli = self.saml_client
logger.info("[_pick_idp] %s", environ)
if "HTTP_PAOS" in environ:
if environ["HTTP_PAOS"] == PAOS_HEADER_INFO:
if MIME_PAOS in environ["HTTP_ACCEPT"]:
# Where should I redirect the user to
# entityid -> the IdP to use
# relay_state -> when back from authentication
logger.info("- ECP client detected -")
_relay_state = construct_came_from(environ)
_entityid = _cli.config.ecp_endpoint(
environ["REMOTE_ADDR"])
if not _entityid:
return -1, HTTPInternalServerError(
detail="No IdP to talk to")
logger.info("IdP to talk to: %s", _entityid)
return ecp.ecp_auth_request(_cli, _entityid, _relay_state)
else:
return -1, HTTPInternalServerError(
detail="Faulty Accept header")
else:
return -1, HTTPInternalServerError(
detail="unknown ECP version")
idps = self.metadata.with_descriptor("idpsso")
logger.info("IdP URL: %s", idps)
idp_entity_id = query = None
for key in ["s2repoze.body", "QUERY_STRING"]:
query = environ.get(key)
if query:
try:
_idp_entity_id = dict(
parse_qs(query))[self.idp_query_param][0]
if _idp_entity_id in idps:
idp_entity_id = _idp_entity_id
break
except KeyError:
logger.debug("No IdP entity ID in query: %s", query)
pass
if idp_entity_id is None:
if len(idps) == 1:
# idps is a dictionary
idp_entity_id = idps.keys()[0]
elif not len(idps):
return -1, HTTPInternalServerError(detail="Misconfiguration")
else:
idp_entity_id = ""
logger.info("ENVIRON: %s", environ)
if self.wayf:
if query:
try:
wayf_selected = dict(
parse_qs(query))["wayf_selected"][0]
except KeyError:
return self._wayf_redirect(came_from)
idp_entity_id = wayf_selected
else:
return self._wayf_redirect(came_from)
elif self.discosrv:
if query:
idp_entity_id = _cli.parse_discovery_service_response(
query=environ.get("QUERY_STRING"))
else:
sid_ = sid()
self.outstanding_queries[sid_] = came_from
logger.debug("Redirect to Discovery Service function")
eid = _cli.config.entityid
ret = _cli.config.getattr(
"endpoints", "sp")["discovery_response"][0][0]
ret += "?sid=%s" % sid_
loc = _cli.create_discovery_service_request(
self.discosrv, eid, **{"return": ret})
return -1, SeeOther(loc)
else:
return -1, HTTPNotImplemented(
detail="No WAYF or DJ present!")
logger.info("Chosen IdP: '%s'", idp_entity_id)
return 0, idp_entity_id
def do_attribute_query(self,
entityid,
subject_id,
attribute=None,
sp_name_qualifier=None,
name_qualifier=None,
nameid_format=None,
real_id=None,
consent=None,
extensions=None,
sign=False,
binding=BINDING_SOAP,
nsprefix=None):
""" Does a attribute request to an attribute authority, this is
by default done over SOAP.
:param entityid: To whom the query should be sent
:param subject_id: The identifier of the subject
:param attribute: A dictionary of attributes and values that is
asked for
:param sp_name_qualifier: The unique identifier of the
service provider or affiliation of providers for whom the
identifier was generated.
:param name_qualifier: The unique identifier of the identity
provider that generated the identifier.
:param nameid_format: The format of the name ID
:param real_id: The identifier which is the key to this entity in the
identity database
:param binding: Which binding to use
:param nsprefix: Namespace prefixes preferred before those automatically
produced.
:return: The attributes returned if BINDING_SOAP was used.
HTTP args if BINDING_HTT_POST was used.
"""
if real_id:
response_args = {"real_id": real_id}
else:
response_args = {}
if not binding:
binding, destination = self.pick_binding("attribute_service",
None,
"attribute_authority",
entity_id=entityid)
else:
srvs = self.metadata.attribute_service(entityid, binding)
if srvs is []:
raise SAMLError("No attribute service support at entity")
destination = destinations(srvs)[0]
if binding == BINDING_SOAP:
return self._use_soap(destination,
"attribute_query",
consent=consent,
extensions=extensions,
sign=sign,
subject_id=subject_id,
attribute=attribute,
sp_name_qualifier=sp_name_qualifier,
name_qualifier=name_qualifier,
format=nameid_format,
response_args=response_args)
elif binding == BINDING_HTTP_POST:
mid = sid()
query = self.create_attribute_query(destination, subject_id,
attribute, mid, consent,
extensions, sign, nsprefix)
self.state[query.id] = {
"entity_id": entityid,
"operation": "AttributeQuery",
"subject_id": subject_id,
"sign": sign
}
relay_state = self._relay_state(query.id)
return self.apply_binding(binding,
"%s" % query,
destination,
relay_state,
sign=sign)
else:
raise SAMLError("Unsupported binding")
def _wayf_redirect(self, came_from):
sid_ = sid()
self.cache.outstanding_queries[sid_] = came_from
logger.debug("Redirect to WAYF function: %s", self.wayf)
return -1, SeeOther(headers=[("Location",
"%s?%s" % (self.wayf, sid_))])
def _pick_idp(self, came_from):
"""
If more than one idp and if none is selected, I have to do wayf or
disco
"""
_cli = self.sp
logger.debug("[_pick_idp] %s", self.environ)
if "HTTP_PAOS" in self.environ:
if self.environ["HTTP_PAOS"] == PAOS_HEADER_INFO:
if MIME_PAOS in self.environ["HTTP_ACCEPT"]:
# Where should I redirect the user to
# entityid -> the IdP to use
# relay_state -> when back from authentication
logger.debug("- ECP client detected -")
_rstate = rndstr()
self.cache.relay_state[_rstate] = geturl(self.environ)
_entityid = _cli.config.ecp_endpoint(
self.environ["REMOTE_ADDR"])
if not _entityid:
return -1, ServiceError("No IdP to talk to")
logger.debug("IdP to talk to: %s", _entityid)
return ecp.ecp_auth_request(_cli, _entityid, _rstate)
else:
return -1, ServiceError("Faulty Accept header")
else:
return -1, ServiceError("unknown ECP version")
# Find all IdPs
idps = self.sp.metadata.with_descriptor("idpsso")
idp_entity_id = None
kaka = self.environ.get("HTTP_COOKIE", "")
if kaka:
try:
(idp_entity_id, _) = parse_cookie("ve_disco", "SEED_SAW", kaka)
except ValueError:
pass
except TypeError:
pass
# Any specific IdP specified in a query part
query = self.environ.get("QUERY_STRING")
if not idp_entity_id and query:
try:
_idp_entity_id = dict(parse_qs(query))[self.idp_query_param][0]
if _idp_entity_id in idps:
idp_entity_id = _idp_entity_id
except KeyError:
logger.debug("No IdP entity ID in query: %s", query)
pass
if not idp_entity_id:
if self.wayf:
if query:
try:
wayf_selected = dict(
parse_qs(query))["wayf_selected"][0]
except KeyError:
return self._wayf_redirect(came_from)
idp_entity_id = wayf_selected
else:
return self._wayf_redirect(came_from)
elif self.discosrv:
if query:
idp_entity_id = _cli.parse_discovery_service_response(
query=self.environ.get("QUERY_STRING"))
if not idp_entity_id:
sid_ = sid()
self.cache.outstanding_queries[sid_] = came_from
logger.debug("Redirect to Discovery Service function")
eid = _cli.config.entityid
ret = _cli.config.getattr("endpoints",
"sp")["discovery_response"][0][0]
ret += "?sid=%s" % sid_
loc = _cli.create_discovery_service_request(
self.discosrv, eid, **{"return": ret})
return -1, SeeOther(loc)
elif len(idps) == 1:
# idps is a dictionary
idp_entity_id = list(idps.keys())[0]
elif not len(idps):
return -1, ServiceError("Misconfiguration")
else:
return -1, NotImplemented("No WAYF or DS present!")
logger.info("Chosen IdP: '%s'", idp_entity_id)
return 0, idp_entity_id
def test_artifact_flow():
#SP = 'urn:mace:example.com:saml:roland:sp'
sp = Saml2Client(config_file="servera_conf")
with closing(Server(config_file="idp_all_conf")) as idp:
# original request
binding, destination = sp.pick_binding("single_sign_on_service",
entity_id=idp.config.entityid)
relay_state = "RS0"
req_id, req = sp.create_authn_request(destination, id="id1")
artifact = sp.use_artifact(req, 1)
binding, destination = sp.pick_binding("single_sign_on_service",
[BINDING_HTTP_ARTIFACT],
entity_id=idp.config.entityid)
hinfo = sp.apply_binding(binding, artifact, destination, relay_state)
# ========== @IDP ============
artifact2 = get_msg(hinfo, binding)
assert artifact == artifact2
# The IDP now wants to replace the artifact with the real request
destination = idp.artifact2destination(artifact2, "spsso")
msg_id, msg = idp.create_artifact_resolve(artifact2, destination,
sid())
hinfo = idp.use_soap(msg, destination, None, False)
# ======== @SP ==========
msg = get_msg(hinfo, BINDING_SOAP)
ar = sp.parse_artifact_resolve(msg)
assert ar.artifact.text == artifact
# The SP picks the request out of the repository with the artifact as the key
oreq = sp.artifact[ar.artifact.text]
# Should be the same as req above
# Returns the information over the existing SOAP connection so
# no transport information needed
msg = sp.create_artifact_response(ar, ar.artifact.text)
hinfo = sp.use_soap(msg, destination)
# ========== @IDP ============
msg = get_msg(hinfo, BINDING_SOAP)
# The IDP untangles the request from the artifact resolve response
spreq = idp.parse_artifact_resolve_response(msg)
# should be the same as req above
assert spreq.id == req.id
# That was one way, the Request from the SP
# ---------------------------------------------#
# Now for the other, the response from the IDP
name_id = idp.ident.transient_nameid(sp.config.entityid, "derek")
resp_args = idp.response_args(spreq, [BINDING_HTTP_POST])
response = idp.create_authn_response(
{
"eduPersonEntitlement": "Short stop",
"surName": "Jeter",
"givenName": "Derek",
"mail": "*****@*****.**",
"title": "The man"
},
name_id=name_id,
authn=AUTHN,
**resp_args)
print(response)
# with the response in hand create an artifact
artifact = idp.use_artifact(response, 1)
binding, destination = sp.pick_binding("single_sign_on_service",
[BINDING_HTTP_ARTIFACT],
entity_id=idp.config.entityid)
hinfo = sp.apply_binding(binding,
"%s" % artifact,
destination,
relay_state,
response=True)
# ========== SP =========
artifact3 = get_msg(hinfo, binding)
assert artifact == artifact3
destination = sp.artifact2destination(artifact3, "idpsso")
# Got an artifact want to replace it with the real message
msg_id, msg = sp.create_artifact_resolve(artifact3, destination, sid())
print(msg)
hinfo = sp.use_soap(msg, destination, None, False)
# ======== IDP ==========
msg = get_msg(hinfo, BINDING_SOAP)
ar = idp.parse_artifact_resolve(msg)
print(ar)
assert ar.artifact.text == artifact3
# The IDP retrieves the response from the database using the artifact as the key
#oreq = idp.artifact[ar.artifact.text]
binding, destination = idp.pick_binding("artifact_resolution_service",
entity_id=sp.config.entityid)
resp = idp.create_artifact_response(ar, ar.artifact.text)
hinfo = idp.use_soap(resp, destination)
# ========== SP ============
msg = get_msg(hinfo, BINDING_SOAP)
sp_resp = sp.parse_artifact_resolve_response(msg)
assert sp_resp.id == response.id
