upload protected with pac4j auth error fix #361

coverage-report/src/test/java/org/jooby/issues/Issue361.java

@@ -0,0 +1,36 @@
+package org.jooby.issues;
+
+import org.jooby.Upload;
+import org.jooby.pac4j.Auth;
+import org.jooby.test.ServerFeature;
+import org.junit.Test;
+
+public class Issue361 extends ServerFeature {
+
+  {
+    use(new Auth().form());
+
+    get("/", () -> "OK");
+
+    post("/api/protected/upload", req -> {
+      Upload file = req.file("myfile");
+      return file.name();
+    });
+  }
+
+  @Test
+  public void shouldPac4jAuthContextShouldNotFailWithFileUploads() throws Exception {
+    request()
+        .get("/auth?username=test&password=test")
+        .expect("OK");
+
+    request()
+        .post("/api/protected/upload")
+        .multipart()
+        .add("username", "test")
+        .add("password", "test")
+        .file("myfile", "<xml></xml>".getBytes(), "application/xml", "pom.xml")
+        .expect(200);
+  }
+
+}

jooby-netty/src/main/java/org/jooby/internal/netty/NettyRequest.java

@@ -258,6 +258,8 @@ private Multimap<String, String> decodeParams() throws IOException {
           switch (field.getHttpDataType()) {
             case FileUpload:
               files.put(name, new NettyUpload((FileUpload) field, tmpdir));
+              // excludes upload from param names.
+              break;
             default:
               params.put(name, field.getString());
               break;

jooby-undertow/src/main/java/org/jooby/internal/undertow/UndertowRequest.java

@@ -91,7 +91,12 @@ public String path() {
   public List<String> paramNames() {
     ImmutableList.Builder<String> builder = ImmutableList.<String> builder();
     builder.addAll(exchange.getQueryParameters().keySet());
-    form.forEach(builder::add);
+    form.forEach(v -> {
+      // excludes upload from param names.
+      if (!form.getFirst(v).isFile()) {
+        builder.add(v);
+      }
+    });
     return builder.build();
   }