1 files changed, 88 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/web/OverrideFilter.java b/src/main/java/org/traccar/web/OverrideFilter.java
new file mode 100644
index 000000000..9780c9ede
--- /dev/null
+++ b/src/main/java/org/traccar/web/OverrideFilter.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2023 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.web;
+
+import com.google.inject.Provider;
+import org.traccar.api.security.PermissionsService;
+import org.traccar.model.Server;
+import org.traccar.storage.StorageException;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.servlet.Filter;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRequest;
+import jakarta.servlet.ServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@Singleton
+public class OverrideFilter implements Filter {
+
+    private final Provider<PermissionsService> permissionsServiceProvider;
+
+    @Inject
+    public OverrideFilter(Provider<PermissionsService> permissionsServiceProvider) {
+        this.permissionsServiceProvider = permissionsServiceProvider;
+    }
+
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
+            throws IOException, ServletException {
+
+        if (((HttpServletRequest) request).getServletPath().startsWith("/api")) {
+            chain.doFilter(request, response);
+            return;
+        }
+
+        ResponseWrapper wrappedResponse = new ResponseWrapper((HttpServletResponse) response);
+
+        chain.doFilter(request, wrappedResponse);
+
+        byte[] bytes = wrappedResponse.getCapture();
+        if (bytes != null) {
+            if (wrappedResponse.getContentType() != null && wrappedResponse.getContentType().contains("text/html")
+                    || ((HttpServletRequest) request).getPathInfo().endsWith("manifest.webmanifest")) {
+
+                Server server;
+                try {
+                    server = permissionsServiceProvider.get().getServer();
+                } catch (StorageException e) {
+                    throw new RuntimeException(e);
+                }
+
+                String title = server.getString("title", "Traccar");
+                String description = server.getString("description", "Traccar GPS Tracking System");
+                String colorPrimary = server.getString("colorPrimary", "#1a237e");
+
+                String alteredContent = new String(wrappedResponse.getCapture())
+                        .replace("${title}", title)
+                        .replace("${description}", description)
+                        .replace("${colorPrimary}", colorPrimary);
+
+                byte[] data = alteredContent.getBytes();
+                response.setContentLength(data.length);
+                response.getOutputStream().write(data);
+
+            } else {
+                response.getOutputStream().write(bytes);
+            }
+        }
+    }
+
+}