Encoder Url Online

I want to send a HTTP GET to http://example.com/%2F. My first guess would be something like this:

using (WebClient webClient = new WebClient()){  webClient.DownloadData("http://example.com/%2F");}

Unfortunately, I can see that what is actually sent on the wire is:

GET // HTTP/1.1Host: example.comConnection: Keep-Alive

So http://example.com/%2F gets translated into http://example.com// before transmitting it.

Is there a way to actually send this GET-request?

The OCSP-protocol mandates sending the url-encoding of a base-64-encoding when using OCSP over HTTP/GET, so it is necessary to send an actual %2F rather than an '/' to be compliant.

EDIT:

Here is the relevant part of the OCSP protocol standard (RFC 2560 Appendix A.1.1):

An OCSP request using the GET method is constructed as follows:

GET {url}/{url-encoding of base-64 encoding of the DER encoding of the OCSPRequest}

I am very open to other readings of this, but I cannot see what else could be meant.

I'm trying to send a message using Firebase cloud messaging with special characters, like Russian language characters. Here the relevant code:

From app sender:

String message = tv.getText().toString(); //get text from UI text view....App myapp = new App.Builder(HTTP_TRANSPORT, JSON_FACTORY, credential).setApplicationName(getString(R.string.app_name)).build();try {     //send the message to the server     myapp.sendToGroup(new String(message.getBytes(StandardCharsets.UTF_8),          StandardCharsets.UTF_8)).execute();} catch (IOException e) {     return;}

From the server:

    Map<String, JsonElement> dataMap = new HashMap<>();    dataMap.put(MSG, new JsonPrimitive(message));    pushMessage.setData(dataMap);    HttpURLConnection conn = null;    URL url = new URL("https://fcm.googleapis.com/fcm/send");    conn = (HttpURLConnection) url.openConnection();    conn.setDoOutput(true);    conn.setRequestProperty("Content-Type", "application/json; charset=UTF-8");    conn.setRequestProperty("project_id", "xxxxxxx");    conn.setRequestProperty("Authorization", "key=" + FCM_API_KEY);    conn.setRequestProperty("Accept", "application/json");    conn.setRequestMethod("POST");    .......//send the request here

App receiver service:

public class CloudListenerService extends FirebaseMessagingService {@Overridepublic void onMessageReceived(RemoteMessage remoteMessage) {    Map<String, String> data = remoteMessage.getData();    String message = data.get(MSG);    if (message == null)        return;    Bundle b = new Bundle();    Intent r = getNewIntent();    b.putString(Receiver.EXTRA_MESSAGE, new String(message.getBytes(StandardCharsets.UTF_8),            StandardCharsets.UTF_8));    sendBroadcast(r);}}

The message I see is ?????? it just means there's something wrong with encoding. From the server I can see the right string encoded with %D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80 (i.e. пример the text I sent). Where's the error?

I have a small code that sends a form data using the HttpWebRequest, the problem is, every space is replaced with '+'. How to use %20 as a replacement?

I've tried Uri.EscapeUriString("hello world") & WebUtility.UrlEncode("hello world"), but spaces still replaced with %2b which is still '+'. I also tried to replace it with Replace("+"," "), Replace("%2b","%20"), Replace("+", "%20"). Still no success

string TXT_TO_SEND = "Hello beautiful world";var encoding = Encoding.UTF8;byte[] bytes = null;NameValueCollection outgoingQueryString = HttpUtility.ParseQueryString(String.Empty);outgoingQueryString.Add("message", TXT_TO_SEND);string postdata = outgoingQueryString.ToString();bytes = encoding.GetBytes(postdata);string url = "https://my.blog/"HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);request.Method = "POST";request.AllowAutoRedirect = true;request.Accept = "application/json, text/plain, */*";request.ContentType = "application/x-www-form-urlencoded";request.ContentLength = bytes.Length;using (Stream dataStream = request.GetRequestStream()){    dataStream.Write(bytes, 0, bytes.Length);    using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())    {        using (var response_reader = new StreamReader(response.GetResponseStream(), encoding))        {        }    }}

How to make the code above use %20 as a space replacement?

I know i can do this

var nv = HttpUtility.ParseQueryString(req.RawUrl);

But is there a way to convert this back to a url?

var newUrl = HttpUtility.Something("/page", nv);

I am trying to write a bash script for testing that takes a parameter and sends it through curl to web site. I need to url encode the value to make sure that special characters are processed properly. What is the best way to do this?

Here is my basic script so far:

#!/bin/bashhost=${1:?'bad host'}value=$2shiftshiftcurl -v -d "param=${value}" http://${host}/somepath $@