HTTP Request with Cookie grab

[bucher...@gmail.com]

Hi

i'm a new user of Codename One. We have a look for a 'Hybrid Framework' to develop apps for our company. In fact of that i try to make a pilot app.

But now concret: I would make a HTTP Post with credentials. Then I would grab the cookies or session information. Than I need these Informations for further requests.

I have a working Java Example:

String url = "http://192.168.1.18:8180/wf/servlet.method/com.iflow.dms.ldap.EpPasswdAuth.setAuthorizationCookie";

String url2 = "http://192.168.1.18:8180/wf/servlet.method/com.groiss.smartclient.JsonLoader.get/standard.documents/?folder=com.groiss.dms.impl.StandardFolder:279";

String userId = "test";

String pwd = "test";

String nextPage="%2Fwf%2Fservlet.method%2Fcom.groiss.smartclient.Main.start";

String cookies = "";

HttpURLConnection uc;

try {

uc = (HttpURLConnection)new URL(url).openConnection();

uc.setRequestMethod("POST");

uc.setDoOutput(true);

uc.setInstanceFollowRedirects(false);

uc.connect();

OutputStream os = uc.getOutputStream();

// post user and password 

os.write(("avw_user="+userId+"&avw_password="+URLEncoder.encode(pwd,"UTF8")+"&nextPage="+nextPage).getBytes());

int cd = uc.getResponseCode();

if (cd != 200 && cd != 302) {

System.out.println("Error: "+uc.getResponseMessage());

}

InputStreamReader is = new InputStreamReader(uc.getInputStream());

String scookies = uc.getHeaderField("Set-Cookie");

StringBuilder cs = new StringBuilder();

String headerName=null;

for (int i=1; (headerName = uc.getHeaderFieldKey(i))!=null; i++) {

System.out.println("Header Name: " + headerName + "/t" + "Header Field: " + uc.getHeaderField(i));

System.out.println("/n");

if (headerName.equals("Set-Cookie")) {                  

cs.append(uc.getHeaderField(i));

}

}

cookies = cs.toString();

} catch (MalformedURLException e) {

System.out.println(e.getMessage());

e.printStackTrace();

} catch (IOException e) {

System.out.println(e.getMessage());

e.printStackTrace();

}

System.out.println(cookies);

System.out.println("\n");

HttpURLConnection uc2;

try {

uc2 = (HttpURLConnection)new URL(url2).openConnection();

uc2.setRequestMethod("GET");

uc2.setRequestProperty("Cookie", cookies);

uc2.connect();

int cd = uc2.getResponseCode();

if (cd != 200 && cd != 302) {

System.out.println("Error: "+uc2.getResponseMessage());

}

String headerName=null;

InputStreamReader is = new InputStreamReader(uc2.getInputStream());

String sOut = "";

int data = is.read();

while(data != -1){

sOut += (char) data;

   data = is.read();

}

is.close();

System.out.println(sOut);

System.out.println("\n");

} catch (MalformedURLException e) {

System.out.println(e.getMessage());

e.printStackTrace();

} catch (IOException e) {

System.out.println(e.getMessage());

e.printStackTrace();

}

How can I do the same with Codename One? Should I use the Class 'ConnectionRequest'?

[Chen Fishbein]

Yes, take a look at NetworkManager and ConnectionRequest

[bucher...@gmail.com]

Have you got an example for a http post request? I have found a lot examples for http get but no post.

[Shai Almog]

The default is post. Just use setPost(true) and the request will be a post request with the exact same API.

[bucher...@gmail.com]

Okay, I will try that. I give than a Feedback how it works.

[bucher...@gmail.com]

I have allready the problem with the cookie grab.

I made an post-request with credentials. It seems that this will work, because I get a response from the server. During the request, I took the session id out of the cookies.

In the second step I will make an get-request with the session id from before.

In "normal" java it works. I make something like this:
HttpURLConnection con = (HttpURLConnection)new URL(url2).openConnection();

con .setRequestMethod("GET");

con .setRequestProperty("Cookie", cookies);

I have tried with addRequestHeader but it would not work. I get an not autorized error.

Have you got any idea?

[Shai Almog]

If you want to override the cookies from the server try overriding:
cookieReceived, cookieSent & initCookieHeader,

[bucher...@gmail.com]

Hi together

now it works. I have made the error by myself. I have sended some wrong information in the post Request.

Thanks for helping.

best regards