Login to a remote site with PHP cURL

Question

I am new to using cURL and it is hard to find good resources for this. What I'm trying to do is log in to a remote site, forcing me to pick up the registration form and then send back that it was successful.

The code that I have does not seem to work and is only trying to show the main page of the site.

$username="[e-mail]"; $password="mypassword"; $url="http://www.myremotesite.com/index.php?page=login"; $cookie="cookie.txt"; $postdata = "email=".$username."&password=".$password; $ch = curl_init(); curl_setopt ($ch, CURLOPT_URL, $url); curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6"); curl_setopt ($ch, CURLOPT_TIMEOUT, 60); curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 0); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_COOKIEJAR, $cookie); curl_setopt ($ch, CURLOPT_REFERER, $url); curl_setopt ($ch, CURLOPT_POSTFIELDS, $postdata); curl_setopt ($ch, CURLOPT_POST, 1); $result = curl_exec ($ch); echo $result; curl_close($ch); 

What am I doing wrong. After that, I want to redirect to another page and get content from my site.

Answer 1

I left it for a long time, but returned to it later. Since this issue is reviewed regularly. In the end, this is what I used, and it worked for me.

 define("DOC_ROOT","/path/to/html"); //username and password of account $username = trim($values["email"]); $password = trim($values["password"]); //set the directory for the cookie using defined document root var $path = DOC_ROOT."/ctemp"; //build a unique path with every request to store. the info per user with custom func. I used this function to build unique paths based on member ID, that was for my use case. It can be a regular dir. //$path = build_unique_path($path); // this was for my use case //login form action url $url="https://www.example.com/login/action"; $postinfo = "email=".$username."&password=".$password; $cookie_file_path = $path."/cookie.txt"; $ch = curl_init(); curl_setopt($ch, CURLOPT_HEADER, false); curl_setopt($ch, CURLOPT_NOBODY, false); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file_path); //set the cookie the site has for certain features, this is optional curl_setopt($ch, CURLOPT_COOKIE, "cookiename=0"); curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_REFERER, $_SERVER['REQUEST_URI']); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $postinfo); curl_exec($ch); //page with the content I want to grab curl_setopt($ch, CURLOPT_URL, "http://www.example.com/page/"); //do stuff with the info with DomDocument() etc $html = curl_exec($ch); curl_close($ch); 

Update: this code was never intended to be copied and pasted. This was to show how I used it for my particular use case. You must adapt it to your code as needed. Such as directories, variables, etc.

Answer 2

I had the same question and I found this answer on this website .

And I changed it a bit (curl_close on the last line)

 $username = 'myuser'; $password = 'mypass'; $loginUrl = 'http://www.example.com/login/'; //init curl $ch = curl_init(); //Set the URL to work with curl_setopt($ch, CURLOPT_URL, $loginUrl); // ENABLE HTTP POST curl_setopt($ch, CURLOPT_POST, 1); //Set the post parameters curl_setopt($ch, CURLOPT_POSTFIELDS, 'user='.$username.'&pass='.$password); //Handle cookies for the login curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt'); //Setting CURLOPT_RETURNTRANSFER variable to 1 will force cURL //not to print out the results of its query. //Instead, it will return the results as a string return value //from curl_exec() instead of the usual true/false. curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //execute the request (the login) $store = curl_exec($ch); //the login is now done and you can continue to get the //protected content. //set the URL to the protected file curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/protected/download.zip'); //execute the request $content = curl_exec($ch); curl_close($ch); //save the data to disk file_put_contents('~/download.zip', $content); 

I think that was what you were looking for. I'm right?

---

And one useful question. About how to save a session in cUrl: stack overflow

Answer 3

Browse the source of the login page. Find the HTML form tag. There is something inside this tag that will look like action= Use this value as $url , not the URL of the form itself.

Also, while you're there, make sure the input fields are named exactly as you specified them.

For example, a basic login form would look like this:

 <form method='post' action='postlogin.php'> Email Address: <input type='text' name='email'> Password: <input type='password' name='password'> </form> 

Using the above form as an example, change the value of $url to:

 $url="http://www.myremotesite.com/postlogin.php"; 

Check the values ​​you specified in $postdata :

 $postdata = "email=".$username."&password=".$password; 

and it should work fine.

Answer 4

Here is how I solved it in ImpressPages:

 //initial request with login data $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/login.php'); curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/32.0.1700.107 Chrome/32.0.1700.107 Safari/537.36'); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, "username=XXXXX&password=XXXXX"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_COOKIESESSION, true); curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie-name'); //could be empty, but cause problems on some hosts curl_setopt($ch, CURLOPT_COOKIEFILE, '/var/www/ip4.x/file/tmp'); //could be empty, but cause problems on some hosts $answer = curl_exec($ch); if (curl_error($ch)) { echo curl_error($ch); } //another request preserving the session curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/profile'); curl_setopt($ch, CURLOPT_POST, false); curl_setopt($ch, CURLOPT_POSTFIELDS, ""); $answer = curl_exec($ch); if (curl_error($ch)) { echo curl_error($ch); } 

Answer 5

Panama Jack example doesn't work for me - Give a fatal error: call the undefined function build_unique_path () function. I used this code - (simpler - my opinion):

 
 // options 
 $login_email = '[e-mail]'; 
 $login_pass = 'alabala4807'; 
 $cookie_file_path = "/tmp/cookies.txt"; 
 $LOGINURL = "http://alabala.com/index.php?route=account/login"; 
 $agent = "Nokia-Communicator-WWW-Browser/2.0 (Geos 3.0 Nokia-9000i)"; 
 
 // begin script 
 $ch = curl_init(); 
 
 // extra headers 
 $headers[] = "Accept: */*"; 
 $headers[] = "Connection: Keep-Alive"; 
 
 // basic curl options for all requests 
 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
 curl_setopt($ch, CURLOPT_HEADER, 0); 
 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); 
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 
 curl_setopt($ch, CURLOPT_USERAGENT, $agent); 
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); 
 curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file_path); 
 curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file_path); 
 
 // set first URL 
 curl_setopt($ch, CURLOPT_URL, $LOGINURL); 
 
 // execute session to get cookies and required form inputs 
 $content = curl_exec($ch); 
 
 // grab the hidden inputs from the form required to login 
 $fields = getFormFields($content); 
 $fields['email'] = $login_email; 
 $fields['password'] = $login_pass; 
 
 // set postfields using what we extracted from the form 
 $POSTFIELDS = http_build_query($fields); 
 // change URL to login URL 
 curl_setopt($ch, CURLOPT_URL, $LOGINURL); 
 
 // set post options 
 curl_setopt($ch, CURLOPT_POST, 1); 
 curl_setopt($ch, CURLOPT_POSTFIELDS, $POSTFIELDS); 
 
 // perform login 
 $result = curl_exec($ch); 
 
 print $result; 
 
 function getFormFields($data) 
 { 
 if (preg_match('/()/is', $data, $matches)) { 
 $inputs = getInputs($matches[1]); 
 
 return $inputs; 
 } else { 
 die('didnt find login form'); 
 } 
 } 
 
 function getInputs($form) 
 { 
 $inputs = array(); 
 $elements = preg_match_all("/(]+>)/is", $form, $matches); 
 if ($elements > 0) { 
 for($i = 0;$i $el = preg_replace('/\s{2,}/', ' ', $matches[1][$i]); 
 if (preg_match('/name=(?:["\'])?([^"\'\s]*)/i', $el, $name)) { 
 $name = $name[1]; 
 
 $value = ''; 
 if (preg_match('/value=(?:["\'])?([^"\'\s]*)/i', $el, $value)) { 
 $value = $value[1]; 
 } 
 
 $inputs[$name] = $value; 
 } 
 } 
 } 
 
 return $inputs; 
 } 
 
 $grab_url='http://grab.url/alabala'; 
 
 //page with the content I want to grab 
 curl_setopt($ch, CURLOPT_URL, $grab_url); 
 //do stuff with the info with DomDocument() etc 
 $html = curl_exec($ch); 
 curl_close($ch); 
 
 var_dump($html); 
 die;