php - cUrl login is not working -

i'm trying login 1 of sites using curl pull information off page. not seem working. here's code i'm trying. if helps can create user/pass scenario.

<?php  $username = 'xxx'; $password = 'xxx'; $loginurl = 'http://gwintersdev.com/user'; $finalurl = 'http://gwintersdev.com/admin';  $userinput = 'name'; $passwordinput = 'pass';  $ch = curl_init(); curl_setopt($ch, curlopt_cookiejar, "cookie.txt"); curl_setopt($ch, curlopt_url,$loginurl); curl_setopt($ch, curlopt_post, 1); curl_setopt($ch, curlopt_postfields, "$userinput=$username&$passwordinput=$password"); curl_setopt($ch, curlopt_useragent, 'user-agent');   ob_start();      // prevent output curl_exec ($ch); // execute curl command ob_end_clean();  // stop preventing output  curl_close ($ch); unset($ch);  $ch = curl_init(); curl_setopt($ch, curlopt_returntransfer,1); curl_setopt($ch, curlopt_cookiefile, "cookie.txt"); curl_setopt($ch, curlopt_url, $finalurl);  $buf2 = curl_exec ($ch);  curl_close ($ch); print $buf2; ?>         

update: able above working, i'm trying on different asp site , it's not working. grabbed hidden fields , added them post string, still won't login.

<?php $username = 'xxx'; $password = 'xxx'; $loginurl = 'http://vitalstim.com/health_professionals/certified_provider_resources/forum.aspx'; $finalurl = 'http://vitalstim.com/health_professionals/certified_provider_resources/forum.aspx'; $userinput = 'ctl00$contentplaceholder1$uc_login$txtuser'; $passwordinput = 'ctl00$contentplaceholder1$uc_login$txtpass'; $login = 'ctl00$contentplaceholder1$uc_login$butlogin';  $validation_input = '__eventvalidation'; $validation_input_value = '/wewagkf+ptrbqkitpn5bdxhchsanbepwkebmmynv+32l2ec'; $view_state = '/wepdwujltqymjg0nzi0d2qwamypzbygagepzbyeagypfgieb1zpc2libgvozaihdxychwbozaidd2qwbaibd2qwcaibd2qwbaibdw8wah4evgv4dgvkzaifdw8wah8aagrkagcpzbycagepzbycagmpzbycagepfgifaghkagkpdxychwbozgqccw8pfgifaghkzaiddxychwbozaifdw8wah8bbxy8c2nyaxb0igxhbmd1ywdlpsjqyxzhc2nyaxb0iib0exblpsj0zxh0l2phdmfzy3jpchqipgokkgrvy3vtzw50ks5yzwfkeshmdw5jdglvbigpihskvml0ywxtdgltlkluaxqonck7cn0powo8l3njcmlwdd4kzgrkdz/7+fcq1e1sbc0gua3jjscgsnm='; $event_valid = '/wewbwkeim4xaoi2mfkeaurz/r4mavtx0jyc+4gopqkco6iimggc2po41g77y84vwyhp6ek+7pgzydngoawrzw==';  $ch = curl_init(); curl_setopt($ch, curlopt_cookiejar, "cookie.txt"); curl_setopt($ch, curlopt_url, $loginurl); curl_setopt($ch, curlopt_post, 1); curl_setopt($ch, curlopt_postfields,   "$userinput=$username&$passwordinput=$password&$validation_input=$validation_input_value&$login=login&__eventvalidation=$event_valid&_viewstate=$view_state"); curl_setopt($ch, curlopt_useragent, 'user-agent'); curl_exec ($ch); // execute curl command  curl_setopt($ch, curlopt_returntransfer,1); curl_setopt($ch, curlopt_cookiefile, "cookie.txt"); curl_setopt($ch, curlopt_url, $finalurl);  $buf2 = curl_exec ($ch); curl_close ($ch); print $buf2; ?> 

it looks missing 2 hidden fields in source of form. csrf protection kinda. can try scrapeing that, doing third request, before other two, , getting values, , putting them in second request.

also, said in comment above, dont close curl handler.

any more info can give awesome

edit:

as asp page: asp terribly difficult curl with. hiding fields need. suggestion create fake page, print_r's $_post , $_get, , change action of form on page chrome, or firebug, submit page. check if missing anything

i did suggested try, , got this:

array (     [__eventtarget] =>      [__eventargument] =>      [__viewstate] => /wepdwujltqymjg0nzi0d2qwamypzbygagepzbyeagypfgieb1zpc2libgvozaihdxychwbozaidd2qwbaibd2qwcaibd2qwbaibdw8wah4evgv4dgvkzaifdw8wah8aagrkagcpzbycagepzbycagmpzbycagepfgifaghkagkpdxychwbozgqccw8pfgifaghkzaiddxychwbozaifdw8wah8bbxy8c2nyaxb0igxhbmd1ywdlpsjqyxzhc2nyaxb0iib0exblpsj0zxh0l2phdmfzy3jpchqipgokkgrvy3vtzw50ks5yzwfkeshmdw5jdglvbigpihskvml0ywxtdgltlkluaxqonck7cn0powo8l3njcmlwdd4kzgrkdz/7+fcq1e1sbc0gua3jjscgsnm=     [ctl00$contentplaceholder1$uc_login$txtuser] => test     [ctl00$contentplaceholder1$uc_login$txtpass] => test     [ctl00$contentplaceholder1$uc_login$butlogin] => login     [__eventvalidation] => /wewbwkeim4xaoi2mfkeaurz/r4mavtx0jyc+4gopqkco6iimggc2po41g77y84vwyhp6ek+7pgzydngoawrzw== )