I have an AngularJS app trying to submit a form to a Java backend deployed in a Tomcat 7.0.54. My AngularJS app seems to be submitting the form correctly. This is the content type header as recored by Chrome's inspector:
Content-Type:application/json;charset=UTF-8
The request payload, once again as recorded by Chrome's inspector, is:
{"newProject":{"title":"título","deadline":"30/Maio/2014", .....
That is, the AngularJS app is putting the request correctly in the wire. However, I',m unable to read this payload correctly in the server side. Characters like "í" are being printed as "?".
Just for the purpose of testing I modified my second filter in the chain (the first is Spring Security) for printing the content of the request. This is to be sure that neither my server side application nor any of the frameworks I'm using are interfering in my data.
#Override
public void doFilter( ServletRequest request, ServletResponse response, FilterChain chain ) throws IOException, ServletException {
try {
HttpServletRequest hsr = (HttpServletRequest)request;
if( "POST".equalsIgnoreCase( hsr.getMethod() ) && "http://localhost:8080/profile/createproject".equalsIgnoreCase( hsr.getRequestURL().toString() ) ) {
hsr.setCharacterEncoding( "UTF-8" );
BufferedReader reader = new BufferedReader( new InputStreamReader( request.getInputStream(), "UTF-8" ) );
System.out.println( reader.readLine() );
}
chain.doFilter( request, response );
} finally {
MDC.remove( CHAVE_ID_REQUEST );
}
}
Even reading the request in the second filter of the chain I'm getting "t?tulo" instead of "título". If the same AngularJS app submits to a node backend, then the payload is correctly read and printed in the terminal.
Does anyone have any glue about the reason Tomcat can't read my UTF-8 request correctly?
Seems like you already solved your particular problem, but wanted to add that a key reference for this kind of issue is http://wiki.apache.org/tomcat/FAQ/CharacterEncoding,
which is referenced in https://stackoverflow.com/a/470320/830737
In particular, I was able to solve a similar issue by setting URIEncoding="UTF-8" in my <Connector> in server.xml.
Related
I use AngularJS (client) and a REST interface in my project (server, javax.ws.rs.*). I'm passing data in a path parameter. It may contain special characters, so I call encodeURIComponent() to encode the arguments prior to sending a request.
Client-side:
$http.put('/foo/data/' + encodeURIComponent(data) + '/bar');
The controller will process the request and send a response.
Server-side:
#PUT
#Path("/data/{data}/bar")
public ResultObject handleFooRequest(#PathParam("data") String data) throws Exception {
return handleRequest(data);
}
This works fine on localhost, however, the request fails when I do a request on our production server (Error 400: Bad request). What am I doing wrong and why is it working on one server and fails on the other? In general, is my approach correct? Do I need to tell RESTEasy to decode the arguments? To my understanding (I read the documentation), it does that on default.
I am using asp.net mvc web api and i have this method
[HttpGet]
public LoginResult AuthenticateOnlineBookingUser(String userName,String password)
{
//My Code
}
The problem is that when i pass (*) as input value to the parameter (password)
i receieve this error but on other inputs it is working perfectly
A potentialy dangerous Request.Path.value was detected from client(*)
Thanks in advance
Note:My client side is written in angular js
i tried this solution as well Getting "A potentially dangerous Request.Path value was detected from the client (&)" but it is not working for me
You need to set the options for invalid characters. You can do this in your web.config as shown here.
Use url encoder to encode the request before sending it to server.
Finally solved my problem by changing my GET request to POST request The problem was with query string in Order to solve it with GET Request i have to make some changes to my query string in order to make it work but
I´m using CXF to consume a WebService and, as the responses are quite large, I´m requesting with a gzip "Accept-Encoding" and using GZIPInInterceptor to handle the gziped response. Also my WSDL is very large (360kb) and it takes a long time(+10 seconds) to create the stub, because it has to read and parse the WSDL, so I´m creating the stub once and reusing it.
The problem is, whenever I try to use two different methods the second request gives me an error saying it is expecting the previous request.
To illustrate my problem I created a simple example with this public WebService:
http://www.webservicex.net/BibleWebservice.asmx?WSDL
Without the GZip compression it works fine:
BibleWebserviceSoap bibleService = new BibleWebservice().getBibleWebserviceSoap();
String title = bibleService.getBookTitles();
response.getWriter().write(title);
String johnResponse = bibleService.getBibleWordsbyKeyWord("John");
response.getWriter().write(johnResponse);
I´m able to receive both responses.
Enabling Gzip compression:
BibleWebserviceSoap bibleService = new BibleWebservice().getBibleWebserviceSoap();
//GZIP compression on bibleService
Client client = ClientProxy.getClient(bibleService);
client.getInInterceptors().add(new GZIPInInterceptor());
client.getInFaultInterceptors().add(new GZIPInInterceptor());
// Creating HTTP headers
Map<String, List<String>> headers = new HashMap<String, List<String>>();
headers.put("Accept-Encoding", Arrays.asList("gzip"));
// Add HTTP headers to the web service request
client.getRequestContext().put(Message.PROTOCOL_HEADERS, headers);
String title = bibleService.getBookTitles();
response.getWriter().write(title);
String johnResponse = bibleService.getBibleWordsbyKeyWord("John");
response.getWriter().write(johnResponse);
When I try to receive the second response I´m getting this exception:
org.apache.cxf.interceptor.Fault: Unexpected wrapper element {http://www.webserviceX.NET}GetBookTitlesResponse found. Expected {http://www.webserviceX.NET}GetBibleWordsbyKeyWordResponse.
On my real application I´m getting an exception with the request:
org.apache.cxf.binding.soap.SoapFault: OperationFormatter encountered an invalid Message body. Expected to find node type 'Element' with name 'GetAvailabilityRequest' and namespace 'http://schemas.navitaire.com/WebServices/ServiceContracts/BookingService'. Found node type 'Element' with name 'ns4:PriceItineraryRequest' and namespace 'http://schemas.navitaire.com/WebServices/ServiceContracts/BookingService'
My sample project can be downloaded here:
http://www.sendspace.com/file/plt0m4
Thank you
Instead of setting the protocol headers directly like that, use CXF's GZIPOutInterceptor to handle that.
Either that or reset the PROTOCOL headers for each request. When set like that, the headers map gets updated as the request goes through the chain. In this case, the soapaction gets set. This then gets resent on the second request.
I am a new bie on GWT, I wrote an application on abc.com, I have another application i.e. xyz.com, xyz.com?id=1 provides me a data in json format, I was thinking to find a way that how to get that json file in abc.com via RPC call, because I have seen tutorials in which RPC calls are used to get data from its server. any help will be appreciated.
EDIT
I am trying to implement this in this StockWatcher tutorial
I changed my code slightly change to this
private static final String JSON_URL = "http://localhost/stockPrices.php?q=";
AND
private void refreshWatchList() {
if (stocks.size() == 0) {
return;
}
String url = JSON_URL;
// Append watch list stock symbols to query URL.
Iterator iter = stocks.iterator();
while (iter.hasNext()) {
url += iter.next();
if (iter.hasNext()) {
url += "+";
}
}
url = URL.encode(url);
MyJSONUtility.makeJSONRequest(url, new JSONHandler() {
#Override
public void handleJSON(JavaScriptObject obj) {
if (obj == null) {
displayError("Couldn't retrieve JSON");
return;
}
updateTable(asArrayOfStockData(obj));
}
});
}
before when I was requesting my url via RequestBuilder it was giving me an exception Couldn't retrieve JSON but now JSON is fetched and status code is 200 as I saw that in firebug but it is not updating on table. Kindly help me regarding this.
First, you need to understand the Same Origin Policy which explains how browsers implement a security model where JavaScript code running on a web page may not interact with any resource not originating from the same web site.
While GWT's HTTP client and RPC call can only fetch data from the same site where your application was loaded, you can get data from another server if it returns json in the right format. You must be interacting with a JSON service that can invoke user defined callback functions with the JSON data as argument.
Second, see How to Fetch JSON DATA
I'm developing a recorder in silverlight and I need to upload data from stream to the web server after recording process is completed.
On server side I'm using ASP.NET MVC 3, and I have created a Controller with method FileUpload.
public class FileUploaderController : Controller
{
[HttpPost]
public ActionResult FileUpload(string fileName)
{
....
}
}
In silverlight applet, the upload is made by parts, about 20000 bytes at time. Servers web config is configured to accept larger amount of data.
Server returns an exception "The remote server returned an error: NotFound.".
In this case the request have not reached the action and I can't understand why.
Example of code that is used to start upload:
UriBuilder httpHandlerUrlBuilder = new UriBuilder("http://localhost:37386/FileUploader/FileUpload/?fileName=" + Guid.NewGuid() + ".wav");
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(httpHandlerUrlBuilder.Uri);
webRequest.Method = "POST";
webRequest.ContentType = "multipart/form-data"; // This solved my problem
webRequest.BeginGetRequestStream(new AsyncCallback(WriteToStreamCallback), webRequest);
EDIT
My route configuration is by default:
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
When the small amount of data is sent, everything goes well and server receives the requested data. But when data to be send is larger I'm just getting NotFound response. This doesn't make any sense to me, what I'm doing is:
HttpWebRequest to send 20000 bytes
close request stream (obtained from request.EndGetRequestStream)
wait for server response (from webRequest.EndGetResponse) This is where error occurs.
In my case, I never send more than 20000 bytes, which is strange this to work sometimes and others not.
I don't know a better way to explain this problem. If you need I can provide more code and more information.
Any help is very much appreciated.
With filddler I was able to get more detailed information regarding to the error. It was "upload file potentially dangerous Request.Form value was detected from the client...".
To solve this I've specified content-type of the webRequest to "multipart/form-data"