problems with Qhttp.

[Con Nít]

I have 2 file php below:
login.php

<?
session_start();
?>
<FORM METHOD=POST>
Password : <Input type = 'TEXT' Name ='password'> <INPUT TYPE=SUBMIT NAME="submit" VALUE="submit">
</FORM>
<?
	if(isset($_POST['submit'])){
		if(($_POST['password']) == "123456"){
			$_SESSION['login'] = "ADMIN";
		}else{
			$_SESSION['login'] = NULL;
		}
		?>
		<SCRIPT languages="javascript">
			window.location = 'index.php';
		</SCRIPT>
		<?
	}
?>

<?
session_start();
?>
<FORM METHOD=POST>
Password : <Input type = 'TEXT' Name ='password'> <INPUT TYPE=SUBMIT NAME="submit" VALUE="submit">
</FORM>
<?
	if(isset($_POST['submit'])){
		if(($_POST['password']) == "123456"){
			$_SESSION['login'] = "ADMIN";
		}else{
			$_SESSION['login'] = NULL;
		}
		?>
		<SCRIPT languages="javascript">
			window.location = 'index.php';
		</SCRIPT>
		<?
	}
?>

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index.php

<?php
session_start();
if(isset($_SESSION['login'])){
	echo "ok";
}else{
	echo "n-ok";
}
?>

<?php
session_start();
if(isset($_SESSION['login'])){
	echo "ok";
}else{
	echo "n-ok";
}
?>

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this is the class to send Post to login.php

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
#include <QHttp>
 
namespace Ui {
    class MainWindow;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
private:
    Ui::MainWindow *ui;
    QHttp *http;
    QHttp *secondHttp;
    QString cookie_value;
private slots:
    void readResponseHeader(const QHttpResponseHeader &);
    void readSecondResponseHeader(const QHttpResponseHeader &);
};
 
#endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QHttp>

namespace Ui {
    class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

private:
    Ui::MainWindow *ui;
    QHttp *http;
    QHttp *secondHttp;
    QString cookie_value;
private slots:
    void readResponseHeader(const QHttpResponseHeader &);
    void readSecondResponseHeader(const QHttpResponseHeader &);
};

#endif // MAINWINDOW_H

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mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    http = new QHttp("localhost", 80);
    secondHttp = new QHttp("localhost", 80);
    connect(http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),this, SLOT(readResponseHeader(const QHttpResponseHeader &)));
    connect(secondHttp, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),this, SLOT(readSecondResponseHeader(const QHttpResponseHeader &)));
    QByteArray content = "";
    content.append("password");
    content.append("=");
    content.append("123456");
    content.append("&");
    content.append("submit");
    content.append("=");
    content.append("submit");
    QHttpRequestHeader header("POST", "/test/login.php");
    header.setValue("Host", "localhost");
    header.setContentType("application/x-www-form-urlencoded");
    header.setContentLength(content.length());
    http->request(header,content);
}
 
void MainWindow::readResponseHeader(const QHttpResponseHeader &responseHeader){
    cookie_value = responseHeader.value("Set-Cookie");
    cookie_value = cookie_value.section(";", 0, 0);
    ui->textEdit->append(responseHeader.toString());
 
    QHttpRequestHeader header("GET", "/test/index.php");
    header.setValue("Host", "localhost");
    header.setValue("Cookie", cookie_value);
    header.setContentType("application/x-www-form-urlencoded");
    secondHttp->request(header);
}
 
void MainWindow::readSecondResponseHeader(const QHttpResponseHeader &responseHeader){
    ui->textEdit->append(responseHeader.toString());
}
 
MainWindow::~MainWindow()
{
    delete ui;
    delete http;
    delete secondHttp;
}

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    http = new QHttp("localhost", 80);
    secondHttp = new QHttp("localhost", 80);
    connect(http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),this, SLOT(readResponseHeader(const QHttpResponseHeader &)));
    connect(secondHttp, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),this, SLOT(readSecondResponseHeader(const QHttpResponseHeader &)));
    QByteArray content = "";
    content.append("password");
    content.append("=");
    content.append("123456");
    content.append("&");
    content.append("submit");
    content.append("=");
    content.append("submit");
    QHttpRequestHeader header("POST", "/test/login.php");
    header.setValue("Host", "localhost");
    header.setContentType("application/x-www-form-urlencoded");
    header.setContentLength(content.length());
    http->request(header,content);
}

void MainWindow::readResponseHeader(const QHttpResponseHeader &responseHeader){
    cookie_value = responseHeader.value("Set-Cookie");
    cookie_value = cookie_value.section(";", 0, 0);
    ui->textEdit->append(responseHeader.toString());

    QHttpRequestHeader header("GET", "/test/index.php");
    header.setValue("Host", "localhost");
    header.setValue("Cookie", cookie_value);
    header.setContentType("application/x-www-form-urlencoded");
    secondHttp->request(header);
}

void MainWindow::readSecondResponseHeader(const QHttpResponseHeader &responseHeader){
    ui->textEdit->append(responseHeader.toString());
}

MainWindow::~MainWindow()
{
    delete ui;
    delete http;
    delete secondHttp;
}

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The second time when send "GET" to index.php attach session code, run good
The first time send request sever response :

HTTP/1.1 200 OK
Date: Fri, 25 Feb 2011 09:05:42 GMT
Server: Apache/2.2.11 (Win32) DAV/2 mod_ssl/2.2.11 OpenSSL/0.9.8i PHP/5.2.9
X-Powered-By: PHP/5.2.9
Set-Cookie: PHPSESSID=2595a2b9578d54555be352faaa673feb; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 214
Content-Type: text/html

The second time send request sever response :

HTTP/1.1 200 OK
Date: Fri, 25 Feb 2011 09:05:43 GMT
Server: Apache/2.2.11 (Win32) DAV/2 mod_ssl/2.2.11 OpenSSL/0.9.8i PHP/5.2.9
X-Powered-By: PHP/5.2.9
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 2
Content-Type: text/html

But my isuisse is: how to get the content of index.php after send request
(the content is ok or n-ok)

[Con Nít]

somebody help me.
thanks.

---

Added after 26 minutes:

I have solved my problem.

[squidge]

Another thing that comes to mind is why you are not using the cookie jar.

[Con Nít]

Another thing that comes to mind is why you are not using the cookie jar.

In PHP, I can do that with CURLOPT_COOKIEJAR option, But I don't know how to do that with HTTP protocol, Could U edit directly in demo for me?

[squidge]

In Qt, you would use the QNetworkCookieJar class: http://doc.trolltech.com/latest/qnetworkcookiejar.html

[Con Nít]

I use responseHeader.allValues("Set-Cookie"); to get list cookie string type. How can I foist a list of cookies for the requests after that but no need use setValue instead of use QNetworkCookieJar.
I don't understand QNetworkCookieJar's activity.
Thanks for your help.

[ChrisW67]

You set the cookie jar on your QNetworkAccessManager and forget about it... or at least you would if you were not using the obsolete QHttp class.