Add security package

1 files changed, 119 insertions, 0 deletions

diff --git a/src/main/java/org/traccar/api/security/SecurityRequestFilter.java b/src/main/java/org/traccar/api/security/SecurityRequestFilter.java
new file mode 100644
index 000000000..9f20acb40
--- /dev/null
+++ b/src/main/java/org/traccar/api/security/SecurityRequestFilter.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
+ *
+ * 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.api.security;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.Context;
+import org.traccar.Main;
+import org.traccar.api.resource.SessionResource;
+import org.traccar.database.StatisticsManager;
+import org.traccar.helper.DataConverter;
+import org.traccar.model.User;
+import org.traccar.storage.StorageException;
+
+import javax.annotation.security.PermitAll;
+import javax.servlet.http.HttpServletRequest;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.container.ContainerRequestContext;
+import javax.ws.rs.container.ContainerRequestFilter;
+import javax.ws.rs.container.ResourceInfo;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.SecurityContext;
+import java.lang.reflect.Method;
+import java.nio.charset.StandardCharsets;
+
+public class SecurityRequestFilter implements ContainerRequestFilter {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(SecurityRequestFilter.class);
+
+    public static final String AUTHORIZATION_HEADER = "Authorization";
+    public static final String WWW_AUTHENTICATE = "WWW-Authenticate";
+    public static final String BASIC_REALM = "Basic realm=\"api\"";
+    public static final String X_REQUESTED_WITH = "X-Requested-With";
+    public static final String XML_HTTP_REQUEST = "XMLHttpRequest";
+
+    public static String[] decodeBasicAuth(String auth) {
+        auth = auth.replaceFirst("[B|b]asic ", "");
+        byte[] decodedBytes = DataConverter.parseBase64(auth);
+        if (decodedBytes != null && decodedBytes.length > 0) {
+            return new String(decodedBytes, StandardCharsets.US_ASCII).split(":", 2);
+        }
+        return null;
+    }
+
+    @javax.ws.rs.core.Context
+    private HttpServletRequest request;
+
+    @javax.ws.rs.core.Context
+    private ResourceInfo resourceInfo;
+
+    @Override
+    public void filter(ContainerRequestContext requestContext) {
+
+        if (requestContext.getMethod().equals("OPTIONS")) {
+            return;
+        }
+
+        SecurityContext securityContext = null;
+
+        try {
+
+            String authHeader = requestContext.getHeaderString(AUTHORIZATION_HEADER);
+            if (authHeader != null) {
+
+                try {
+                    String[] auth = decodeBasicAuth(authHeader);
+                    User user = Context.getPermissionsManager().login(auth[0], auth[1]);
+                    if (user != null) {
+                        Main.getInjector().getInstance(StatisticsManager.class).registerRequest(user.getId());
+                        securityContext = new UserSecurityContext(new UserPrincipal(user.getId()));
+                    }
+                } catch (StorageException e) {
+                    throw new WebApplicationException(e);
+                }
+
+            } else if (request.getSession() != null) {
+
+                Long userId = (Long) request.getSession().getAttribute(SessionResource.USER_ID_KEY);
+                if (userId != null) {
+                    Context.getPermissionsManager().checkUserEnabled(userId);
+                    Main.getInjector().getInstance(StatisticsManager.class).registerRequest(userId);
+                    securityContext = new UserSecurityContext(new UserPrincipal(userId));
+                }
+
+            }
+
+        } catch (SecurityException e) {
+            LOGGER.warn("Authentication error", e);
+        }
+
+        if (securityContext != null) {
+            requestContext.setSecurityContext(securityContext);
+        } else {
+            Method method = resourceInfo.getResourceMethod();
+            if (!method.isAnnotationPresent(PermitAll.class)) {
+                Response.ResponseBuilder responseBuilder = Response.status(Response.Status.UNAUTHORIZED);
+                if (!XML_HTTP_REQUEST.equals(request.getHeader(X_REQUESTED_WITH))) {
+                    responseBuilder.header(WWW_AUTHENTICATE, BASIC_REALM);
+                }
+                throw new WebApplicationException(responseBuilder.build());
+            }
+        }
+
+    }
+
+}