fixes
[sfa.git] / sfa / trust / auth.py
index d0d4abf..31853ed 100644 (file)
@@ -1,21 +1,22 @@
 #
 # SfaAPI authentication 
 #
-### $Id$
-### $URL$
-#
+import sys
 
+from sfa.util.faults import InsufficientRights, MissingCallerGID, MissingTrustedRoots, PermissionError, \
+    BadRequestHash, ConnectionKeyGIDMismatch, SfaPermissionDenied
+from sfa.util.sfalogging import logger
+from sfa.util.config import Config
+from sfa.util.xrn import Xrn, get_authority
 
-#import sfa.util.sfalogging
+from sfa.trust.gid import GID
+from sfa.trust.rights import Rights
 from sfa.trust.certificate import Keypair, Certificate
 from sfa.trust.credential import Credential
-from sfa.trust.trustedroot import TrustedRootList
-from sfa.util.faults import *
+from sfa.trust.trustedroots import TrustedRoots
 from sfa.trust.hierarchy import Hierarchy
-from sfa.util.config import *
-from sfa.util.namespace import *
-from sfa.util.sfaticket import *
-import sys
+from sfa.trust.sfaticket import SfaTicket
+
 
 class Auth:
     """
@@ -30,22 +31,30 @@ class Auth:
         self.load_trusted_certs()
 
     def load_trusted_certs(self):
-        self.trusted_cert_list = TrustedRootList(self.config.get_trustedroots_dir()).get_list()
-        self.trusted_cert_file_list = TrustedRootList(self.config.get_trustedroots_dir()).get_file_list()
+        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, hrn = None):
+    def checkCredentials(self, creds, operation, xrns=[]):
+        if not isinstance(xrns, list):
+            xrns = [xrns]
+        hrns = [Xrn(xrn).hrn for xrn in xrns] 
         valid = []
         if not isinstance(creds, list):
             creds = [creds]
+        logger.debug("Auth.checkCredentials with %d creds"%len(creds))
+        error=[ "no credential","was given"]
         for cred in creds:
-            try:
-                self.check(cred, operation, hrn)
-                valid.append(cred)
-            except:
-                error = sys.exc_info()[:2]
-                continue
+            for hrn in hrns:
+                try:
+                    self.check(cred, operation, hrn)
+                    valid.append(cred)
+                except:
+                    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]
+                    continue
             
         if not len(valid):
             raise InsufficientRights('Access denied: %s -- %s' % (error[0],error[1]))
@@ -58,7 +67,7 @@ class Auth:
         Check the credential against the peer cert (callerGID included 
         in the credential matches the caller that is connected to the 
         HTTPS connection, check if the credential was signed by a 
-        trusted cert and check if the credential is allowd to perform 
+        trusted cert and check if the credential is allowed to perform 
         the specified operation.    
         """
         self.client_cred = Credential(string = cred)
@@ -79,7 +88,7 @@ class Auth:
                 raise InsufficientRights(operation)
 
         if self.trusted_cert_list:
-            self.client_cred.verify(self.trusted_cert_file_list)
+            self.client_cred.verify(self.trusted_cert_file_list, self.config.SFA_CREDENTIAL_SCHEMA)
         else:
            raise MissingTrustedRoots(self.config.get_trustedroots_dir())
        
@@ -145,7 +154,8 @@ class Auth:
 
     def authenticateCert(self, certStr, requestHash):
         cert = Certificate(string=certStr)
-        self.validateCert(self, cert)   
+        # xxx should be validateCred ??
+        self.validateCred(cert)   
 
     def gidNoop(self, gidStr, value, requestHash):
         self.authenticateGid(gidStr, [gidStr, value], requestHash)
@@ -229,81 +239,64 @@ class Auth:
     
         raise PermissionError(name)
 
-    def determine_user_rights(self, caller_hrn, record):
+    def determine_user_rights(self, caller_hrn, reg_record):
         """
         Given a user credential and a record, determine what set of rights the
         user should have to that record.
         
-        This is intended to replace determine_rights() and
+        This is intended to replace determine_user_rights() and
         verify_cancreate_credential()
         """
 
-        rl = RightList()
-        type = record['type']
-
-
-        if type=="slice":
-            researchers = record.get("researcher", [])
-            pis = record.get("PI", [])
-            if (caller_hrn in researchers + pis):
-                rl.add("refresh")
-                rl.add("embed")
-                rl.add("bind")
-                rl.add("control")
-                rl.add("info")
-
-        elif type == "authority":
-            pis = record.get("PI", [])
-            operators = record.get("operator", [])
+        rl = Rights()
+        type = reg_record.type
+
+        logger.debug("entering determine_user_rights with record %s and caller_hrn %s"%(reg_record, caller_hrn))
+
+        if type == 'slice':
+            # researchers in the slice are in the DB as-is
+            researcher_hrns = [ user.hrn for user in reg_record.reg_researchers ]
+            # locating PIs attached to that slice
+            slice_pis=reg_record.get_pis()
+            pi_hrns = [ user.hrn for user in slice_pis ]
+            if (caller_hrn in researcher_hrns + pi_hrns):
+                rl.add('refresh')
+                rl.add('embed')
+                rl.add('bind')
+                rl.add('control')
+                rl.add('info')
+
+        elif type == 'authority':
+            pi_hrns = [ user.hrn for user in reg_record.reg_pis ]
             if (caller_hrn == self.config.SFA_INTERFACE_HRN):
-                rl.add("authority")
-                rl.add("sa")
-                rl.add("ma")
-            if (caller_hrn in pis):
-                rl.add("authority")
-                rl.add("sa")
-            if (caller_hrn in operators):
-                rl.add("authority")
-                rl.add("ma")
-
-        elif type == "user":
-            rl.add("refresh")
-            rl.add("resolve")
-            rl.add("info")
-
-        elif type == "node":
-            rl.add("operator")
+                rl.add('authority')
+                rl.add('sa')
+                rl.add('ma')
+            if (caller_hrn in pi_hrns):
+                rl.add('authority')
+                rl.add('sa')
+            # NOTE: for the PL implementation, this 'operators' list 
+            # amounted to users with 'tech' role in that site 
+            # it seems like this is not needed any longer, so for now I just drop that
+            # operator_hrns = reg_record.get('operator',[])
+            # if (caller_hrn in operator_hrns):
+            #    rl.add('authority')
+            #    rl.add('ma')
+
+        elif type == 'user':
+            rl.add('refresh')
+            rl.add('resolve')
+            rl.add('info')
+
+        elif type == 'node':
+            rl.add('operator')
 
         return rl
 
-    def verify_cancreate_credential(self, src_cred, record):
-        """
-        Verify that a user can retrive a particular type of credential.
-        For slices, the user must be on the researcher list. For SA and
-        MA the user must be on the pi and operator lists respectively
-        """
-
-        type = record.get_type()
-        cred_object_hrn = src_cred.get_gid_object().get_hrn()
-        if cred_object_hrn in [self.config.SFA_REGISTRY_ROOT_AUTH]:
-            return
-        if type=="slice":
-            researchers = record.get("researcher", [])
-            if not (cred_object_hrn in researchers):
-                raise PermissionError(cred_object_hrn + " is not in researcher list for " + record.get_name())
-        elif type == "sa":
-            pis = record.get("pi", [])
-            if not (cred_object_hrn in pis):
-                raise PermissionError(cred_object_hrn + " is not in pi list for " + record.get_name())
-        elif type == "ma":
-            operators = record.get("operator", [])
-            if not (cred_object_hrn in operators):
-                raise PermissionError(cred_object_hrn + " is not in operator list for " + record.get_name())
-
     def get_authority(self, hrn):
         return get_authority(hrn)
 
-    def filter_creds_by_caller(self, creds, caller_hrn):
+    def filter_creds_by_caller(self, creds, caller_hrn_list):
         """
         Returns a list of creds who's gid caller matches the 
         specified caller hrn
@@ -311,10 +304,12 @@ class Auth:
         if not isinstance(creds, list):
             creds = [creds]
         creds = []
+        if not isinstance(caller_hrn_list, list):
+            caller_hrn_list = [caller_hrn_list]
         for cred in creds:
             try:
                 tmp_cred = Credential(string=cred)
-                if tmp_cred.get_gid_caller().get_hrn() == caller_hrn:
+                if tmp_cred.get_gid_caller().get_hrn() in [caller_hrn_list]:
                     creds.append(cred)
             except: pass
         return creds