Add transient player permissions

src/net/milkbowl/vault/permission/Permission.java

@@ -127,6 +127,34 @@ public abstract class Permission {
     public boolean playerAdd(Player player, String permission) {
         return playerAdd(player.getWorld().getName(), player.getName(), permission);
     }
+    
+    /**
+     * Add transient permission to a player.
+     * @param world World name
+     * @param player Player name
+     * @param permission Permission node
+     * @return Success or Failure
+     */
+    abstract public boolean playerAddTransient(String world, String player, String permission);
+    /**
+     * Add transient permission to a player.
+     * @param world World Object
+     * @param player Player name
+     * @param permission Permission node
+     * @return Success or Failure
+     */
+    public boolean playerAddTransient(World world, String player, String permission) {
+        return playerAddTransient(world.getName(), player, permission);
+    }
+    /**
+     * Add transient permission to a player.
+     * @param player Player Object
+     * @param permission Permission node
+     * @return Success or Failure
+     */
+    public boolean playerAddTransient(Player player, String permission) {
+        return playerAddTransient(player.getWorld().getName(), player.getName(), permission);
+    }
 
     /**
      * Remove permission from a player.

src/net/milkbowl/vault/permission/plugins/Permission_GroupManager.java

@@ -272,4 +272,9 @@ public class Permission_GroupManager extends Permission {
     public void setGroupSuffix(String world, String group, String suffix) {
         throw new UnsupportedOperationException(getName() + " cannot modify permissions.");
     }
+
+    @Override
+    public boolean playerAddTransient(String world, String player, String permission) {
+        throw new UnsupportedOperationException(getName() + " cannot modify permissions.");
+    }
 }

src/net/milkbowl/vault/permission/plugins/Permission_Permissions2.java

@@ -281,4 +281,9 @@ public class Permission_Permissions2 extends Permission {
         throw new UnsupportedOperationException(getName() + " cannot modify permissions.");
     }
 
+    @Override
+    public boolean playerAddTransient(String world, String player, String permission) {
+        throw new UnsupportedOperationException(getName() + " cannot modify permissions.");
+    }
+
 }

src/net/milkbowl/vault/permission/plugins/Permission_Permissions3.java

@@ -296,7 +296,11 @@ public class Permission_Permissions3 extends Permission {
 
     @Override
     public String getGroupPrefix(String world, String group) {
-        return perms.getGroupPrefix(world, group);
+        try {
+            return perms.safeGetGroup(world, group).getPrefix();
+        } catch(Exception e) {
+            return null;
+        }
     }
 
     @Override
@@ -306,11 +310,25 @@ public class Permission_Permissions3 extends Permission {
 
     @Override
     public String getGroupSuffix(String world, String group) {
-        return perms.getGroupSuffix(world, group);
+        try {
+            return perms.safeGetGroup(world, group).getSuffix();
+        } catch(Exception e) {
+            return null;
+        }
     }
 
     @Override
     public void setGroupSuffix(String world, String group, String suffix) {
         this.perms.addGroupInfo(world, group, "suffix", suffix);
     }
+
+    @Override
+    public boolean playerAddTransient(String world, String player, String permission) {
+        try {
+            perms.safeGetUser(world, player).addTimedPermission(permission, 0);
+            return true;
+        } catch(Exception e) {
+            return false;
+        }
+    }
 }

src/net/milkbowl/vault/permission/plugins/Permission_PermissionsEx.java

@@ -444,4 +444,15 @@ public class Permission_PermissionsEx extends Permission {
             pGroup.setSuffix(suffix);
         }
     }
+
+    @Override
+    public boolean playerAddTransient(String world, String player, String permission) {
+        PermissionUser pPlayer = PermissionsEx.getPermissionManager().getUser(player);
+        if (pPlayer != null) {
+            pPlayer.addTimedPermission(permission, world, 0);
+            return true;
+        } else {
+            return false;
+        }
+    }
 }