Changes between Initial Version and Version 1 of AuthModule/RowLevelPermission

Timestamp:

2011-04-30T10:33:38+02:00 (14 years ago)

Author:

Morris Swertz

Comment:

--

AuthModule/RowLevelPermission

@@ +1 @@
+= Row Level Permission design =
+[[TOC()]]
+
+== User story ==
+As a user I want to specify for each object who is allowed to edit, view, and own (delete, give others permissions)
+
+== Requirements ==
+* The solution should NOT require MOLGENIS designers to change their data model.
+* It should not be needed to set permission rules on ALL objects but instead permissions must be set to be 'inheritable' between related objects
+(NB: in MOLGENIS data model we want to specificy these relations as a 'partOf' version of the xref).
+
+== Architecture ==
+A runtime configuration option can be enabled and that 'under water' links an 'permission' system table to 'auth' to set permissions on any object.
+Big advantage is that one doesn't need to change the datamodel. A known drawback is that this table may become very large however as in practice users will not set many permissions.
+
+This design has the following components:
+
+=== 1. Permission table ===
+
+Example fields in this permission table:
+entityName: xref(MolgenisEntity)
+entityId: int 
+actor: xref(MolgenisGroup [MolgenisUser extends MolgenisGroup?])
+permission: {owner, view, edit, execute}
+unique(entityName,entityId,actor)
+
+=== 2. Automatic filtering of any 'row level secured entity' using subselects ===
+Change the Login class to to inject a QueryRule that has 'subselect' to search permissions and enable filtering in selects and updates. Semicode exle:
+{{{
+SELECT ... FROM Investigation WHERE id IN (select entityId from MolgenisPermissions 
+where actor=${currentActor} AND entityName='Investigation' AND permission IN('owner','read','write','execute'))
+}}}
+
+This solution also allows entities to 'inherit' the permissions from a 'parent' object (as long as there is a foreign key path).
+Semicode example, when ObservationElement would 'inherits' permissions from Investigation:
+{{{
+SELECT ... FROM ObservationElement JOIN Investigation WHERE investigation.id IN (select entityId from MolgenisPermissions 
+where actor=${currentActor} AND entityName='Investigation' AND permission IN('owner','read','write','execute'))
+}}}
+
+=== 3. A decorator to automatically set default owner ===
+At every insert on a 'row level permission' secured entity there must a an appropriate owner be inserted into MolgenisPermissions.
+
+=== 4. Sharing user interface ===
+Generated forms are enhanced with
+* an additional actionInput where users that are owner can show a 'sharing' dialog (that is a button in both list and edit views)
+* this sharing dialog lists all permissions for this entity (SELECT ... FROM MolgenisPermission WHERE entityName=%currentEntity% AND entityId=%currentId%)
+* and allows users to add/remove rules. Minimally one 'owner' should remain.
+
+=== 5. Admin user interface ===
+Extend the security 'admin' user interface where I can tick 
+* which entities should have row level security, 
+* what entities should 'inherit' row level security.
+* what the default permissions are