hopefully nicer and more helpful messages when verify_parent fails

[sfa.git] / sfa / trust / rights.py

diff --git a/sfa/trust/rights.py b/sfa/trust/rights.py
index bb4dffe..28e11b3 100644 (file)
--- a/sfa/trust/rights.py
+++ b/sfa/trust/rights.py
@@ -1,3 +1,25 @@
+#----------------------------------------------------------------------
+# Copyright (c) 2008 Board of Trustees, Princeton University
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and/or hardware specification (the "Work") to
+# deal in the Work without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Work, and to permit persons to whom the Work
+# is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Work.
+#
+# THE WORK IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE WORK OR THE USE OR OTHER DEALINGS
+# IN THE WORK.
+#----------------------------------------------------------------------
 ##
 # This Module implements rights and lists of rights for the SFA. Rights
 # are implemented by two classes:
@@ -57,10 +79,10 @@ def determine_rights(type, name):
         rl.add("refresh")
         rl.add("resolve")
         rl.add("info")
-    elif type == "sa":
+    elif type in ["sa", "authority+sa"]:
         rl.add("authority")
         rl.add("sa")
-    elif type == "ma":
+    elif type in ["ma", "authority+ma", "cm", "authority+cm", "sm", "authority+sm"]:
         rl.add("authority")
         rl.add("ma")
     elif type == "authority":
@@ -73,6 +95,7 @@ def determine_rights(type, name):
         rl.add("bind")
         rl.add("control")
         rl.add("info")
+# wouldn't that be authority+cm instead ?
     elif type == "component":
         rl.add("operator")
     return rl
@@ -93,6 +116,8 @@ class Right:
         self.kind = kind
         self.delegate = delegate
 
+    def __repr__ (self): return "<Rgt:%s>"%self.kind
+
     ##
     # Test to see if this right object is allowed to perform an operation.
     # Returns True if the operation is allowed, False otherwise.
@@ -147,6 +172,8 @@ class Rights:
         if string:
             self.load_from_string(string)
 
+    def __repr__ (self): return "[" + " ".join( ["%s"%r for r in self.rights]) + "]"
+
     def is_empty(self):
         return self.rights == []
 
@@ -200,6 +227,7 @@ class Rights:
     # @param op_name is an operation to check, for example "listslices"
 
     def can_perform(self, op_name):
+        
         for right in self.rights:
             if right.can_perform(op_name):
                 return True
@@ -219,6 +247,7 @@ class Rights:
             for my_right in self.rights:
                 if my_right.is_superset(child_right):
                     allowed = True
+                    break
             if not allowed:
                 return False
         return True
@@ -244,47 +273,5 @@ class Rights:
                 return False
         return True
 
-
-
-    ##
-    # Determine the rights that an object should have. The rights are entirely
-    # dependent on the type of the object. For example, users automatically
-    # get "refresh", "resolve", and "info".
-    #
-    # @param type the type of the object (user | sa | ma | slice | node)
-    # @param name human readable name of the object (not used at this time)
-    #
-    # @return Rights object containing rights
-
-    def determine_rights(self, type, name):
-        rl = Rights()
-
-        # rights seem to be somewhat redundant with the type of the credential.
-        # For example, a "sa" credential implies the authority right, because
-        # a sa credential cannot be issued to a user who is not an owner of
-        # the authority
-
-        if type == "user":
-            rl.add("refresh")
-            rl.add("resolve")
-            rl.add("info")
-        elif type == "sa":
-            rl.add("authority")
-            rl.add("sa")
-        elif type == "ma":
-            rl.add("authority")
-            rl.add("ma")
-        elif type == "authority":
-            rl.add("authority")
-            rl.add("sa")
-            rl.add("ma")
-        elif type == "slice":
-            rl.add("refresh")
-            rl.add("embed")
-            rl.add("bind")
-            rl.add("control")
-            rl.add("info")
-        elif type == "component":
-            rl.add("operator")
-
-        return rl
+    def pretty_rights(self):
+        return "<Rights{}>".format(";".join(["{}".format(r) for r in self.rights]))