Convert project to gradle

1 files changed, 58 insertions, 0 deletions

diff --git a/src/main/java/org/traccar/api/CorsResponseFilter.java b/src/main/java/org/traccar/api/CorsResponseFilter.java
new file mode 100644
index 000000000..227f80609
--- /dev/null
+++ b/src/main/java/org/traccar/api/CorsResponseFilter.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2015 - 2018 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;
+
+import io.netty.handler.codec.http.HttpHeaderNames;
+import org.traccar.Context;
+
+import javax.ws.rs.container.ContainerRequestContext;
+import javax.ws.rs.container.ContainerResponseContext;
+import javax.ws.rs.container.ContainerResponseFilter;
+import java.io.IOException;
+
+public class CorsResponseFilter implements ContainerResponseFilter {
+
+    private static final String ORIGIN_ALL = "*";
+    private static final String HEADERS_ALL = "origin, content-type, accept, authorization";
+    private static final String METHODS_ALL = "GET, POST, PUT, DELETE, OPTIONS";
+
+    @Override
+    public void filter(ContainerRequestContext request, ContainerResponseContext response) throws IOException {
+        if (!response.getHeaders().containsKey(HttpHeaderNames.ACCESS_CONTROL_ALLOW_HEADERS.toString())) {
+            response.getHeaders().add(HttpHeaderNames.ACCESS_CONTROL_ALLOW_HEADERS.toString(), HEADERS_ALL);
+        }
+
+        if (!response.getHeaders().containsKey(HttpHeaderNames.ACCESS_CONTROL_ALLOW_CREDENTIALS.toString())) {
+            response.getHeaders().add(HttpHeaderNames.ACCESS_CONTROL_ALLOW_CREDENTIALS.toString(), true);
+        }
+
+        if (!response.getHeaders().containsKey(HttpHeaderNames.ACCESS_CONTROL_ALLOW_METHODS.toString())) {
+            response.getHeaders().add(HttpHeaderNames.ACCESS_CONTROL_ALLOW_METHODS.toString(), METHODS_ALL);
+        }
+
+        if (!response.getHeaders().containsKey(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN.toString())) {
+            String origin = request.getHeaderString(HttpHeaderNames.ORIGIN.toString());
+            String allowed = Context.getConfig().getString("web.origin");
+
+            if (origin == null) {
+                response.getHeaders().add(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN.toString(), ORIGIN_ALL);
+            } else if (allowed == null || allowed.equals(ORIGIN_ALL) || allowed.contains(origin)) {
+                response.getHeaders().add(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN.toString(), origin);
+            }
+        }
+    }
+
+}