Support web overrides

3 files changed, 35 insertions, 2 deletions

diff --git a/src/main/java/org/traccar/config/Keys.java b/src/main/java/org/traccar/config/Keys.java
index 162a3fe13..4ebdd49f1 100644
--- a/src/main/java/org/traccar/config/Keys.java
+++ b/src/main/java/org/traccar/config/Keys.java
@@ -754,6 +754,13 @@ public final class Keys {
             List.of(KeyType.CONFIG));
 
     /**
+     * Path to a folder with overrides. It can be used for branding to keep custom logos in a separate place.
+     */
+    public static final ConfigKey<String> WEB_OVERRIDE = new StringConfigKey(
+            "web.override",
+            List.of(KeyType.CONFIG));
+
+    /**
      * WebSocket connection timeout in milliseconds. Default timeout is 10 minutes.
      */
     public static final ConfigKey<Long> WEB_TIMEOUT = new LongConfigKey(
diff --git a/src/main/java/org/traccar/web/ModernDefaultServlet.java b/src/main/java/org/traccar/web/ModernDefaultServlet.java
index bae089d6c..7911c0e7f 100644
--- a/src/main/java/org/traccar/web/ModernDefaultServlet.java
+++ b/src/main/java/org/traccar/web/ModernDefaultServlet.java
@@ -17,11 +17,37 @@ package org.traccar.web;
 
 import org.eclipse.jetty.servlet.DefaultServlet;
 import org.eclipse.jetty.util.resource.Resource;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import javax.inject.Inject;
+import java.io.File;
+import java.io.IOException;
 
 public class ModernDefaultServlet extends DefaultServlet {
 
+    private Resource overrideResource;
+
+    @Inject
+    public ModernDefaultServlet(Config config) {
+        String override = config.getString(Keys.WEB_OVERRIDE);
+        if (override != null) {
+            overrideResource = Resource.newResource(new File(override));
+        }
+    }
+
     @Override
     public Resource getResource(String pathInContext) {
+        if (overrideResource != null) {
+            try {
+                Resource override = overrideResource.addPath(pathInContext);
+                if (override.exists()) {
+                    return override;
+                }
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
         return super.getResource(pathInContext.indexOf('.') < 0 ? "/" : pathInContext);
     }
 
diff --git a/src/main/java/org/traccar/web/WebServer.java b/src/main/java/org/traccar/web/WebServer.java
index ce1220157..b5d2f2771 100644
--- a/src/main/java/org/traccar/web/WebServer.java
+++ b/src/main/java/org/traccar/web/WebServer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 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.
@@ -141,7 +141,7 @@ public class WebServer implements LifecycleObject {
     }
 
     private void initWebApp(ServletContextHandler servletHandler) {
-        ServletHolder servletHolder = new ServletHolder(ModernDefaultServlet.class);
+        ServletHolder servletHolder = new ServletHolder(new ModernDefaultServlet(config));
         servletHolder.setInitParameter("resourceBase", new File(config.getString(Keys.WEB_PATH)).getAbsolutePath());
         servletHolder.setInitParameter("dirAllowed", "false");
         if (config.getBoolean(Keys.WEB_DEBUG)) {