Unable to get right Website response with POST? - html

Question

I would like to get the response of a website that has results posted by a form. I've tried using WebClient, WebRequests, etc.
Current Code:
using (var client = new WebClient())
{
var buffer = client.UploadValues("https://secure.monroecc.edu/pls/bpr1/bwzkfcls.P_GetCrse", "POST", vals);
return Encoding.UTF8.GetString(buffer, 0, buffer.Count());
}
Also pretty sure that the current code isn't wrong it's just missing something. When I do get the response of the website it's wrong, it's the page where you would fill out the form.
If you try to GET the website it results in this error on the website itself (without posting the variables that go along with it):
VARIABLES IN FORM NOT IN PROCEDURE:
NON-DEFAULT VARIABLES IN PROCEDURE NOT IN FORM: TERM_IN,SEL_SUBJ,SEL_CRSE,SEL_TITLE,BEGIN_HH,BEGIN_MI,BEGIN_AP,SEL_DAY,SEL_PTRM,END_HH,END_MI,END_AP,SEL_CAMP,SEL_SCHD,SEL_SESS,SEL_INSTR,SEL_ATTR,SEL_LEVL,SEL_INSM
DAD name: bpr1
PROCEDURE : bwzkfcls.P_GetCrse
URL : http://secure.monroecc.edu:63500/pls/bpr1/bwzkfcls.P_GetCrse
PARAMETERS :
===========
Here's an image of the request being sent. (Viewing using Chrome)
I know that the website usses oracle PLSQL but again that doesn't seem to help me with retrieving the results of the search.

Answer 1

I posted the form using the following code:
private void Run(string[] args)
{
NameValueCollection vals = new NameValueCollection();
vals.Add("TERM_IN", "");
vals.Add("SEL_SUBJ", "");
vals.Add("SEL_CRSE", "");
vals.Add("SEL_TITLE", "");
vals.Add("BEGIN_HH", "");
vals.Add("BEGIN_MI", "");
vals.Add("BEGIN_AP", "");
vals.Add("SEL_DAY", "");
vals.Add("SEL_PTRM", "");
vals.Add("END_HH", "");
vals.Add("END_MI", "");
vals.Add("END_AP", "");
vals.Add("SEL_CAMP", "");
vals.Add("SEL_SCHD", "");
vals.Add("SEL_SESS", "");
vals.Add("SEL_INSTR", "");
vals.Add("SEL_ATTR", "");
vals.Add("SEL_LEVL", "");
vals.Add("SEL_INSM", "");
using (var client = new WebClient())
{
var buffer = client.UploadValues("https://secure.monroecc.edu/pls/bpr1/bwzkfcls.P_GetCrse", "POST", vals);
Console.WriteLine(Encoding.UTF8.GetString(buffer, 0, buffer.Count()));
//Console.Read();
}
}
It returns a 200 status code and valid html indicating that the form was received properly. However, since none of the values are correct the returned page says that there is a missing form element that must be included (NAME NOT FOUND FOR PIDM: )
The parameter mismatch error you are receiving means that the parameters you are passing in are not the ones that the stored procedure expects. You'll need to get an exact list of the parameters and expected values first, then you can just plug them in and this should work. Unfortunately the page returns a 200 status code so you'll have to parse out somehow whether there was an error or not.

Answer 2

Use a GET request instead of a POST.

Answer 3

You are asking for a page that follows a form to give you a result set when it never actually receives the form variables that would make the result possible.
Your variable vals which should pass the set of variables never does.
VARIABLES IN FORM NOT IN PROCEDURE:
NON-DEFAULT VARIABLES IN PROCEDURE NOT IN FORM: TERM_IN,SEL_SUBJ,SEL_CRSE,SEL_TITLE,BEGIN_HH,BEGIN_MI,BEGIN_AP,SEL_DAY,SEL_PTRM,END_HH,END_MI,END_AP,SEL_CAMP,SEL_SCHD,SEL_SESS,SEL_INSTR,SEL_ATTR,SEL_LEVL,SEL_INSM
This response error says that it never received any of the variables listed. I would trace back in your code to the location were you name and assigned your list of variables to the Collection vals. Check for proper spellings and proper assignment.