import sys
from sfa.util.faults import InsufficientRights, MissingCallerGID, MissingTrustedRoots, PermissionError, \
- BadRequestHash, ConnectionKeyGIDMismatch, SfaPermissionDenied, CredentialNotVerifiable
+ BadRequestHash, ConnectionKeyGIDMismatch, SfaPermissionDenied, CredentialNotVerifiable, Forbidden, \
+ BadArgs
from sfa.util.sfalogging import logger
from sfa.util.config import Config
from sfa.util.xrn import Xrn, get_authority
self.trusted_cert_list = TrustedRoots(self.config.get_trustedroots_dir()).get_list()
self.trusted_cert_file_list = TrustedRoots(self.config.get_trustedroots_dir()).get_file_list()
+ def checkCredentials(self, creds, operation, xrns=[], check_sliver_callback=None, speaking_for_hrn=None):
+
+ def log_invalid_cred(cred):
+ cred_obj=Credential(string=cred)
+ logger.debug("failed to validate credential - dump=%s"%cred_obj.dump_string(dump_parents=True))
+ error = sys.exc_info()[:2]
+ return error
+
+ # if xrns are specified they cannot be None or empty string
+ if xrns:
+ for xrn in xrns:
+ if not xrn:
+ raise BadArgs("Invalid urn or hrn")
+
- def checkCredentials(self, creds, operation, xrns=[]):
if not isinstance(xrns, list):
xrns = [xrns]
- hrns = [Xrn(xrn).hrn for xrn in xrns]
+
+ slice_xrns = Xrn.filter_type(xrns, 'slice')
+ sliver_xrns = Xrn.filter_type(xrns, 'sliver')
+
+ # we are not able to validate slivers in the traditional way so
+ # we make sure not to include sliver urns/hrns in the core validation loop
+ hrns = [Xrn(xrn).hrn for xrn in xrns if xrn not in sliver_xrns]
valid = []
+ speaks_for_cred = None
if not isinstance(creds, list):
creds = [creds]
logger.debug("Auth.checkCredentials with %d creds on hrns=%s"%(len(creds),hrns))
# won't work if either creds or hrns is empty - let's make it more explicit
- if not creds: raise InsufficientRights("Access denied - no credential provided")
+ if not creds: raise Forbidden("no credential provided")
if not hrns: hrns = [None]
+ error=[None,None]
for cred in creds:
for hrn in hrns:
try:
self.check(cred, operation, hrn)
valid.append(cred)
except:
- cred_obj=Credential(cred=cred)
- logger.debug("failed to validate credential - dump=%s"%cred_obj.dump_string(dump_parents=True))
- error = sys.exc_info()[:2]
+ if speaking_for_hrn:
+ try:
+ self.check(cred, operation, speaking_for_hrn)
+ speaks_for_cred = cred
+ valid.append(cred)
+ except:
+ error = log_invalid_cred(cred)
+ else:
+ error = log_invalid_cred(cred)
continue
-
+
+ # make sure all sliver xrns are validated against the valid credentials
+ if sliver_xrns:
+ if not check_sliver_callback:
+ msg = "sliver verification callback method not found."
+ msg += " Unable to validate sliver xrns: %s" % sliver_xrns
+ raise Forbidden(msg)
+ check_sliver_callback(valid, sliver_xrns)
+
if not len(valid):
- raise InsufficientRights('Access denied: %s -- %s' % (error[0],error[1]))
+ raise Forbidden("Invalid credential %s -- %s"%(error[0],error[1]))
+
+ if speaking_for_hrn and not speaks_for_cred:
+ raise InsufficientRights('Access denied: "geni_speaking_for" option specified but no valid speaks for credential found: %s -- %s' % (error[0],error[1]))
return valid