X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Ftrust%2Fgid.py;h=656de4bea47e7c0e0329bc14796a83ea9eb6c683;hb=5c0e9940d36350e510f2acbe7ad9774fb2048ee4;hp=94240cdd48ef49109bb2f4f56f6f91f98974780d;hpb=ba2aaa438f939a4b5c697052e37b1c3218901319;p=sfa.git diff --git a/sfa/trust/gid.py b/sfa/trust/gid.py index 94240cdd..656de4be 100644 --- a/sfa/trust/gid.py +++ b/sfa/trust/gid.py @@ -28,9 +28,11 @@ import xmlrpclib import uuid -from sfa.util.sfalogging import sfa_logger from sfa.trust.certificate import Certificate -from sfa.util.xrn import hrn_to_urn, urn_to_hrn + +from sfa.util.faults import GidInvalidParentHrn, GidParentHrn +from sfa.util.sfalogging import logger +from sfa.util.xrn import hrn_to_urn, urn_to_hrn, hrn_authfor_hrn ## # Create a new uuid. Returns the UUID as a string. @@ -75,12 +77,13 @@ class GID(Certificate): # @param subject If subject!=None, create the X509 cert and set the subject name # @param string If string!=None, load the GID from a string # @param filename If filename!=None, load the GID from a file + # @param lifeDays life of GID in days - default is 1825==5 years - def __init__(self, create=False, subject=None, string=None, filename=None, uuid=None, hrn=None, urn=None): + def __init__(self, create=False, subject=None, string=None, filename=None, uuid=None, hrn=None, urn=None, lifeDays=1825): - Certificate.__init__(self, create, subject, string, filename) + Certificate.__init__(self, lifeDays, create, subject, string, filename) if subject: - sfa_logger().debug("Creating GID for subject: %s" % subject) + logger.debug("Creating GID for subject: %s" % subject) if uuid: self.uuid = int(uuid) if hrn: @@ -180,7 +183,7 @@ class GID(Certificate): print self.dump_string(*args,**kwargs) def dump_string(self, indent=0, dump_parents=False): - result="GID\n" + result=" "*(indent-2) + "GID\n" result += " "*indent + "hrn:" + str(self.get_hrn()) +"\n" result += " "*indent + "urn:" + str(self.get_urn()) +"\n" result += " "*indent + "uuid:" + str(self.get_uuid()) + "\n" @@ -196,7 +199,7 @@ class GID(Certificate): # Verify the chain of authenticity of the GID. First perform the checks # of the certificate class (verifying that each parent signs the child, # etc). In addition, GIDs also confirm that the parent's HRN is a prefix - # of the child's HRN. + # of the child's HRN, and the parent is of type 'authority'. # # Verifying these prefixes prevents a rogue authority from signing a GID # for a principal that is not a member of that authority. For example, @@ -208,8 +211,17 @@ class GID(Certificate): if self.parent: # make sure the parent's hrn is a prefix of the child's hrn - if not self.get_hrn().startswith(self.parent.get_hrn()): - raise GidParentHrn("This cert HRN %s doesnt start with parent HRN %s" % (self.get_hrn(), self.parent.get_hrn())) + if not hrn_authfor_hrn(self.parent.get_hrn(), self.get_hrn()): + raise GidParentHrn("This cert HRN %s isn't in the namespace for parent HRN %s" % (self.get_hrn(), self.parent.get_hrn())) + + # Parent must also be an authority (of some type) to sign a GID + # There are multiple types of authority - accept them all here + if not self.parent.get_type().find('authority') == 0: + raise GidInvalidParentHrn("This cert %s's parent %s is not an authority (is a %s)" % (self.get_hrn(), self.parent.get_hrn(), self.parent.get_type())) + + # Then recurse up the chain - ensure the parent is a trusted + # root or is in the namespace of a trusted root + self.parent.verify_chain(trusted_certs) else: # make sure that the trusted root's hrn is a prefix of the child's trusted_gid = GID(string=trusted_root.save_to_string()) @@ -218,7 +230,11 @@ class GID(Certificate): #if trusted_type == 'authority': # trusted_hrn = trusted_hrn[:trusted_hrn.rindex('.')] cur_hrn = self.get_hrn() - if not self.get_hrn().startswith(trusted_hrn): - raise GidParentHrn("Trusted roots HRN %s isnt start of this cert %s" % (trusted_hrn, cur_hrn)) + if not hrn_authfor_hrn(trusted_hrn, cur_hrn): + raise GidParentHrn("Trusted root with HRN %s isn't a namespace authority for this cert %s" % (trusted_hrn, cur_hrn)) + + # There are multiple types of authority - accept them all here + if not trusted_type.find('authority') == 0: + raise GidInvalidParentHrn("This cert %s's trusted root signer %s is not an authority (is a %s)" % (self.get_hrn(), trusted_hrn, trusted_type)) return