How do I navigate to different pages after logging in via cURL? - php

Question

Login page - https://b2b.chiemsee.com/customer/account/login/
After successful login page - https://b2b.chiemsee.com/customer/account/loginPost/
Page I want to go to - https://b2b.chiemsee.com/damen
I have made 3 separate requests:
1) To get the CSRF token.
2) To make the login.
3) To navigate to the url I want to go to.
Until I added the third request, the login was working fine and taking me to loginPost/ page but now it takes me back to the login/ page. Does it have something to do with the cookie in the third request?
PHP:-
// login request one to get form_key
include('simple_html_dom.php');
$ch2 = curl_init();
curl_setopt($ch2, CURLOPT_URL, "https://b2b.chiemsee.com/customer/account/login/");
curl_setopt($ch2, CURLOPT_FOLLOWLOCATION, true); // to allow redirections
curl_setopt($ch2, CURLOPT_COOKIEJAR, 'cookie.txt'); // to save cookie data for login
curl_setopt($ch2, CURLOPT_RETURNTRANSFER, true); // to get the html
$response2 = curl_exec($ch2);
curl_close($ch2);
$html = new simple_html_dom();
$html->load($response2);
$val = $html->find('input[name=form_key]');
$form_key = $val[0]->value;
// login request two to send form_key, username and password
$data = array(
'form_key' => $form_key,
'login[username]' => 'user',
'login[password]' => 'pass',
'send' => 'Anmelden'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://b2b.chiemsee.com/customer/account/loginPost/");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // to allow redirections
curl_setopt($ch, CURLOPT_POST, true); // to send info
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_COOKIEFILE, 'cookie.txt'); // to read data
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // to get the html
$response = curl_exec($ch);
if (curl_error($ch)) {
$error_msg = curl_error($ch);
var_dump($error_msg);
exit;
}
curl_close($ch);
// request three to open first category
$ch3 = curl_init();
curl_setopt($ch3, CURLOPT_URL, "https://b2b.chiemsee.com/damen");
curl_setopt($ch3, CURLOPT_FOLLOWLOCATION, true); // to allow redirections
curl_setopt($ch3, CURLOPT_COOKIEFILE, 'cookie.txt'); // to read data
curl_setopt($ch3, CURLOPT_RETURNTRANSFER, true); // to get the html
$response3 = curl_exec($ch3);
if (curl_error($ch3)) {
$error_msg3 = curl_error($ch3);
var_dump($error_msg3);
exit;
}
curl_close($ch3);
echo $response3;

Answer 1

I figured out the problem.
I wasn't saving the new data (username and password) sent in second request, in the cookie file, with:
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt'); // to save cookie data for login
Updated code:
// login request one to get form_key
include('simple_html_dom.php');
$ch2 = curl_init();
curl_setopt($ch2, CURLOPT_URL, "https://b2b.chiemsee.com/customer/account/login/");
curl_setopt($ch2, CURLOPT_FOLLOWLOCATION, true); // to allow redirections
curl_setopt($ch2, CURLOPT_COOKIEJAR, 'cookie.txt'); // to save cookie data for login
curl_setopt($ch2, CURLOPT_RETURNTRANSFER, true); // to get the html
$response2 = curl_exec($ch2);
curl_close($ch2);
$html = new simple_html_dom();
$html->load($response2);
$val = $html->find('input[name=form_key]');
$form_key = $val[0]->value;
// login request two to send form_key, username and password
$data = array(
'form_key' => $form_key,
'login[username]' => 'user',
'login[password]' => 'pass',
'send' => 'Anmelden'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://b2b.chiemsee.com/customer/account/loginPost/");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // to allow redirections
//curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // to avoid error
curl_setopt($ch, CURLOPT_POST, true); // to send info
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_COOKIEFILE, 'cookie.txt'); // to read data
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt'); // to save cookie data for login
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // to get the html
$response = curl_exec($ch);
if (curl_error($ch)) {
$error_msg = curl_error($ch);
var_dump($error_msg);
exit;
}
curl_close($ch);
//echo $response;
// request three to open first category
$ch3 = curl_init();
curl_setopt($ch3, CURLOPT_URL, "https://b2b.chiemsee.com/damen");
curl_setopt($ch3, CURLOPT_FOLLOWLOCATION, true); // to allow redirections
curl_setopt($ch3, CURLOPT_COOKIEFILE, 'cookie.txt'); // to read data
curl_setopt($ch3, CURLOPT_RETURNTRANSFER, true); // to get the html
$response3 = curl_exec($ch3);
if (curl_error($ch3)) {
$error_msg3 = curl_error($ch3);
var_dump($error_msg3);
exit;
}
curl_close($ch3);
echo $response3;

Answer 2

2) To make the login.
that code never worked in the first place, you just have insufficient login-error-checking code to realize it.
replace
$response = curl_exec($ch);
if (curl_error($ch)) {
$error_msg = curl_error($ch);
var_dump($error_msg);
exit;
}
curl_close($ch);
with
$response = curl_exec($ch);
if (curl_error($ch)) {
$error_msg = curl_error($ch);
var_dump($error_msg);
exit;
}
$domd=#DOMDocument::loadHTML($response);
$xp=new DOMXPath($domd);
$login_errors=array();
foreach($xp->query("//*[contains(#class,'error-msg')]") as $login_error){
$login_error=trim($login_error->textContent);
if(!empty($login_error)){
$login_errors[]=$login_error;
}
}
if(!empty($login_errors)){
throw new \RuntimeException("login errors: ".print_r($login_errors,true));
}
curl_close($ch);
and you'll see that you get an error during login.