8.8. Controlling Page Access With UserDB

Interchange can implement a simple access control scheme with the user database. Controlled pages must reside in a directory which has a file named .access that is zero bytes in length. (If it is more than 0 bytes, only the RemoteUser or MasterHost may access files in that directory.)

Set the following variables in catalog.cfg:

   Variable   MV_USERDB_ACL_TABLE  userdb
   Variable   MV_USERDB_ACL_COLUMN acl

The MV_USERDB_ACL_TABLE is the table which controls access, and likewise the MV_USERDB_ACL_TABLE names the column in that database which will be checked for authorization.

The database entry should contain the complete Interchange-style page name of the page to be allowed. It will not match substrings.

For example, if the user flycat followed this link:

   <A HREF="[area cartcfg/master_edit]">Edit</A>

Access would be allowed if the contents of the userdb were:

   code    acl
   flycat  cartcfg/master_edit

and disallowed if it were:

   code    acl
   flycat  cartcfg/master_editor

Access can be enabled with:

   [userdb function=set_acl location="cartcfg/master_edit"]

Access can be disallowed with:

   [userdb function=set_acl

Of course, a pre-existing database with the ACL values will work as well. It need not be in the UserDB setup.