Fix URL building logic (#1320)

* Fix URL building logic

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Add test for query params

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Fix the assertion in the test

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Adjust the tests

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Remove uneeded changes from IT test

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Revert some unintended changes

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Simplify the testing a little bit

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Adjust the test to use ServerRequest

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Test removing things from method invoke controller

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Add query param encoding test

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Revert some unintended changes

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Some tiny styles

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

---------

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>
Co-authored-by: Artur Ciocanu <ciocanu@adobe.com>

sdk-tests/src/test/java/io/dapr/it/methodinvoke/http/MethodInvokeController.java

@@ -6,6 +6,7 @@ import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.util.ArrayList;
@@ -88,6 +89,11 @@ public class MethodInvokeController {
         Thread.sleep(seconds * 1000);
     }
 
+    @GetMapping(path = "/query")
+    public Map<String, String> getQuery(@RequestParam("uri") String uri) {
+        return Map.of("uri", uri);
+    }
+
     @GetMapping(path = "/health")
     public void health() {
     }

sdk-tests/src/test/java/io/dapr/it/methodinvoke/http/MethodInvokeIT.java

@@ -1,7 +1,8 @@
 package io.dapr.it.methodinvoke.http;
 
+import com.fasterxml.jackson.databind.JsonNode;
 import io.dapr.client.DaprClient;
-import io.dapr.client.DaprClientBuilder;
+import io.dapr.client.DaprHttp;
 import io.dapr.client.domain.HttpExtension;
 import io.dapr.exceptions.DaprException;
 import io.dapr.it.BaseIT;
@@ -140,4 +141,24 @@ public class MethodInvokeIT extends BaseIT {
             assertTrue(new String(exception.getPayload()).contains("Internal Server Error"));
         }
     }
+
+    @Test
+    public void testInvokeQueryParamEncoding() throws Exception {
+        try (DaprClient client = daprRun.newDaprClientBuilder().build()) {
+            client.waitForSidecar(10000).block();
+
+            String uri = "abc/pqr";
+            Map<String, List<String>> queryParams = Map.of("uri", List.of(uri));
+            HttpExtension httpExtension = new HttpExtension(DaprHttp.HttpMethods.GET, queryParams, Map.of());
+            JsonNode result = client.invokeMethod(
+                daprRun.getAppName(),
+                "/query",
+                null,
+                httpExtension,
+                JsonNode.class
+            ).block();
+
+            assertEquals(uri, result.get("uri").asText());
+        }
+    }
 }

sdk/src/main/java/io/dapr/client/DaprHttp.java

@@ -24,7 +24,6 @@ import reactor.util.context.ContextView;
 
 import java.io.IOException;
 import java.net.URI;
-import java.net.URISyntaxException;
 import java.net.URLEncoder;
 import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
@@ -324,10 +323,17 @@ public class DaprHttp implements AutoCloseable {
   private static URI createUri(URI uri, String[] pathSegments, Map<String, List<String>> urlParameters) {
     String path = createPath(uri, pathSegments);
     String query = createQuery(urlParameters);
+    StringBuilder result = new StringBuilder();
+
+    result.append(uri.getScheme()).append("://").append(uri.getAuthority()).append(path);
+
+    if (query != null) {
+      result.append("?").append(query);
+    }
 
     try {
-      return new URI(uri.getScheme(), uri.getAuthority(), path, query, null);
+      return URI.create(result.toString());
-    } catch (URISyntaxException exception) {
+    } catch (IllegalArgumentException exception) {
       throw new DaprException(exception);
     }
   }
@@ -346,6 +352,10 @@ public class DaprHttp implements AutoCloseable {
     }
 
     for (String segment : pathSegments) {
+      if (segment == null || segment.isEmpty()) {
+        continue; // Skip empty segments
+      }
+
       pathBuilder.append(encodePathSegment(segment)).append("/"); // Encode each segment
     }
 
@@ -363,6 +373,11 @@ public class DaprHttp implements AutoCloseable {
 
     for (Map.Entry<String, List<String>> entry : urlParameters.entrySet()) {
       String key = entry.getKey();
+
+      if (key == null || key.isEmpty()) {
+        continue; // Skip empty keys
+      }
+
       List<String> values = entry.getValue();
 
       for (String value : values) {