Percent encoding user info fix, port AsyncHttpClient#521 on master

Author: Stephane Landelle

api/src/main/java/org/asynchttpclient/RequestBuilderBase.java

@@ -170,7 +170,7 @@ private URI toURI(boolean encode) {
             AsyncHttpProviderUtils.validateSupportedScheme(originalUri);
 
             StringBuilder builder = new StringBuilder();
-            builder.append(originalUri.getScheme()).append("://").append(originalUri.getAuthority());
+            builder.append(originalUri.getScheme()).append("://").append(originalUri.getRawAuthority());
             if (isNonEmpty(originalUri.getRawPath())) {
                 builder.append(originalUri.getRawPath());
             } else {

api/src/test/java/org/asynchttpclient/async/RequestBuilderTest.java

@@ -105,4 +105,11 @@ public void testUserProvidedRequestMethod() {
         assertEquals(req.getMethod(), "ABC");
         assertEquals(req.getUrl(), "http://foo.com");
     }
+
+    @Test(groups = {"standalone", "default_provider"})
+    public void testPercentageEncodedUserInfo() {
+        final Request req = new RequestBuilder("GET").setUrl("http://hello:wor%[email protected]").build();
+        assertEquals(req.getMethod(), "GET");
+        assertEquals(req.getUrl(), "http://hello:wor%[email protected]");
+    }
 }