Use GSSAPI auth for the ipa-replica-manage list and del commands.

This creates a new role, replicaadmin, so a non-DM user can do
limited management of replication agreements.

Note that with cn=config if an unauthorized user performs a search
an error is not returned, no entries are returned. This makes it
difficult to determine if there are simply no replication agreements or
we aren't allowed to see them. Once the ipaldap.py module gets
replaced by ldap2 we can use Get Effective Rights to easily tell the
difference.

install/tools/ipa-replica-manage

@@ -27,6 +27,7 @@ from ipaserver.install import replication, dsinstance, installutils
 from ipaserver import ipaldap
 from ipapython import version
 from ipalib import util
+from ipalib import errors
 
 def parse_options():
     from optparse import OptionParser
@@ -102,12 +103,15 @@ def del_master(replman, hostname, force=False):
     try:
         t = replman.get_agreement_type(hostname)
     except ldap.NO_SUCH_OBJECT:
-        print "No replication agreement found for %s" % hostname
+        print "No replication agreement found for '%s'" % hostname
+        return
+    except errors.NotFound:
+        print "No replication agreement found for '%s'" % hostname
+        return
 
     if t == replication.IPA_REPLICA:
-        dirman_passwd = getpass.getpass("Directory Manager password (%s): " % hostname)
         try:
-            other_replman = replication.ReplicationManager(hostname, dirman_passwd)
+            other_replman = replication.ReplicationManager(hostname, dirman_passwd=None)
             other_replman.suffix = get_suffix()
             other_replman.delete_agreement(replman.conn.host)
         except Exception, e:
@@ -179,10 +183,13 @@ def synch_master(replman, hostname):
 def main():
     options, args = parse_options()
     
+    dirman_passwd = None
+
     if options.dirman_passwd:
         dirman_passwd = options.dirman_passwd
     else:
-        dirman_passwd = getpass.getpass("Directory Manager password: ")
+        if args[0] in ["add", "init"]:
+            dirman_passwd = getpass.getpass("Directory Manager password: ")
 
     if options.host:
         host = options.host
@@ -227,5 +234,12 @@ except SystemExit, e:
 except ldap.INVALID_CREDENTIALS:
     print "Invalid password"
     sys.exit(1)
+except ldap.INSUFFICIENT_ACCESS:
+    print "Insufficient access"
+    sys.exit(1)
+except ldap.LOCAL_ERROR, e:
+    print e.args[0]['info']
+    sys.exit(1)
 except Exception, e:
     print "unexpected error: %s" % str(e)
+    sys.exit(1)

install/updates/40-delegation.update

@@ -72,6 +72,13 @@ add:objectClass: nestedgroup
 add:cn: certadmin
 add:description: Certificate Administrators
 
+dn: cn=replicaadmin,cn=rolegroups,cn=accounts,$SUFFIX
+add:objectClass: top
+add:objectClass: nestedgroup
+add:cn: replicaadmin
+add:description: Replication Administrators
+add:member:'uid=admin,cn=users,cn=accounts,$SUFFIX'
+
 # Add the taskgroups referenced by the ACIs for user administration
 
 dn: cn=taskgroups,cn=accounts,$SUFFIX
@@ -648,3 +655,33 @@ add: aci: '(targetattr = "objectClass")(target =
  $SUFFIX" )(version 3.0 ; acl "Certificate Remove Hold"
   ; allow (write) groupdn = "ldap:///cn=certificate_remove_hold,
  cn=taskgroups,cn=accounts,$SUFFIX";)'
+
+# Taskgroup for managing replicas
+dn: cn=managereplica,cn=taskgroups,cn=accounts,$SUFFIX
+add:objectClass: top
+add:objectClass: nestedgroup
+add:cn: managereplica
+add:description: Manage Replication Agreements
+add:member:'cn=replicaadmin,cn=rolegroups,cn=accounts,$SUFFIX'
+
+# Taskgroup for deleting replicas
+dn: cn=deletereplica,cn=taskgroups,cn=accounts,$SUFFIX
+add:objectClass: top
+add:objectClass: nestedgroup
+add:cn: deletereplica
+add:description: Delete Replication Agreements
+add:member:'cn=replicaadmin,cn=rolegroups,cn=accounts,$SUFFIX'
+
+# Add acis allowing admins to read/write/delete replicas
+dn: cn="$SUFFIX",cn=mapping tree,cn=config
+add: aci: '(targetattr=*)(targetfilter="(|(objectclass=nsds5Replica)
+ (objectclass=nsds5replicationagreement)(objectclass=
+ nsDSWindowsReplicationAgreement))")(version 3.0; acl "Manage
+  replication agreements"; allow (read, write, search) groupdn =
+  "ldap:///cn=managereplica,cn=taskgroups,cn=accounts,$SUFFIX";)'
+
+dn: cn="$SUFFIX",cn=mapping tree,cn=config
+add: aci: '(targetattr=*)(targetfilter="(|(objectclass=
+ nsds5replicationagreement)(objectclass=nsDSWindowsReplicationAgreement
+ ))")(version 3.0;acl "Delete replication agreements";allow (delete)
+  groupdn = "ldap:///cn=deletereplica,cn=taskgroups,cn=accounts,$SUFFIX";)'