Implement permissions manager

1 files changed, 69 insertions, 0 deletions

diff --git a/src/org/traccar/database/PermissionsManager.java b/src/org/traccar/database/PermissionsManager.java
new file mode 100644
index 000000000..16ddd336d
--- /dev/null
+++ b/src/org/traccar/database/PermissionsManager.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.database;
+
+import java.sql.SQLException;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import org.traccar.Context;
+import org.traccar.helper.Log;
+
+public class PermissionsManager {
+    
+    private final Map<Long, Set<Long>> permissions = new HashMap<Long, Set<Long>>();
+    
+    private Set<Long> getNotNull(long userId) {
+        if (!permissions.containsKey(userId)) {
+            permissions.put(userId, new HashSet<Long>());
+        }
+        return permissions.get(userId);
+    }
+    
+    public PermissionsManager() {
+        refresh();
+    }
+    
+    public final void refresh() {
+        permissions.clear();
+        try {
+            for (Map.Entry<Long, Long> entry : Context.getDataManager().getPermissions()) {
+                getNotNull(entry.getKey()).add(entry.getValue());
+            }
+        } catch (SQLException error) {
+            Log.warning(error);
+        }
+    }
+    
+    public Collection<Long> allowedDevices(long userId) {
+        return getNotNull(userId);
+    }
+    
+    public void checkDevice(long userId, long deviceId) throws SecurityException {
+        if (getNotNull(userId).contains(deviceId)) {
+            throw new SecurityException();
+        }
+    }
+    
+    public void checkDevices(long userId, Collection<Long> devices) throws SecurityException {
+        if (getNotNull(userId).containsAll(devices)) {
+            throw new SecurityException();
+        }
+    }
+    
+}