OKHttp handle 302

Asked 9/1, 2017 at 1:24 Answered 9/1, 2017 at 3:47

Solved java android okhttp http-status-code-302

Every time I perform a OKHttp Post request on this site, the response code is 302 and the response body is:

<html>
    <head>
        <title>Object moved</title>
    </head>
    <body>
        <h2>Object moved to <a href="/GradebookSummary.aspx">here</a>.
       </h2>
    </body>
</html>

Here is my code:

OkHttpClient client = new OkHttpClient().newBuilder()
                            .followRedirects(false)
                            .followSslRedirects(false)
                            .build();
                    MediaType mediaType = MediaType.parse("application/x-www-form-urlencoded");
                    RequestBody body = RequestBody.create(mediaType, "checkCookiesEnabled=true&checkMobileDevice=false&checkStandaloneMode=false&checkTabletDevice=false&portalAccountUsername=username&portalAccountPassword=password");
                    Request request = new Request.Builder()
                            .url("https://hac.chicousd.org/LoginParent.aspx?page=GradebookSummary.aspx")
                            .post(body)
                            .addHeader("content-type", "application/x-www-form-urlencoded")
                            .addHeader("cache-control", "no-cache")
                            .build();

                    Response response = client.newCall(request).execute();

My question is: How could I handle the response to be able to go to the new location?

Amberambergris answered 9/1, 2017 at 1:24 Comment(0)

All I needed to do was add a persistent cookie handler, which I found here.

Amberambergris answered 9/1, 2017 at 3:47 Comment(0)

OKhttp follows redirects by default but since you've explicitly disabled it in this case you'll need to check the Location header of the response to find the redirected url.

EDIT: You can get the new location via

String location = response.header('Location');

Sofar answered 9/1, 2017 at 1:41 Comment(6)

could you provide an example – Amberambergris 9/1, 2017 at 2:1

Delete this: .followRedirects(false) – Plourde 9/1, 2017 at 2:29

@JesseWilson I tried that, it gave me a page that said: you must enter a username and password – Amberambergris 9/1, 2017 at 3:15

That means the page that you're trying to access requires authentication which is why you got redirected to the login page. Authenticate yourself first to access the page – Sofar 9/1, 2017 at 3:20

I answered my own question, if you would like to edit your answer I will delete it and accept yours – Amberambergris 9/1, 2017 at 3:48

It would be better if you elaborate on your own answer and accept it. Could prove to be helpful for someone referring to it later – Sofar 9/1, 2017 at 3:57

All I needed to do was add a persistent cookie handler, which I found here.

Amberambergris answered 9/1, 2017 at 3:47 Comment(0)

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