[php] CURL post and cookie example

房東：jeff
發表時間：2012-07-18

/*
  Here is a script that is usefull to :
  - login to a POST form,
  - store a session cookie,
  - download a file once logged in.
*/

// INIT CURL
$ch = curl_init();

// SET URL FOR THE POST FORM LOGIN
curl_setopt($ch, CURLOPT_URL, 'http://www.external-site.com/Members/Login.php');

// ENABLE HTTP POST
curl_setopt ($ch, CURLOPT_POST, 1);

// SET POST PARAMETERS : FORM VALUES FOR EACH FIELD
curl_setopt ($ch, CURLOPT_POSTFIELDS, 'fieldname1=fieldvalue1&fieldname2=fieldvalue2');

// IMITATE CLASSIC BROWSER'S BEHAVIOUR : HANDLE COOKIES
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 1st REQUEST (FORM LOGIN)
$store = curl_exec ($ch);

// SET FILE TO DOWNLOAD
curl_setopt($ch, CURLOPT_URL, 'http://www.external-site.com/Members/Downloads/AnnualReport.pdf');

// EXECUTE 2nd REQUEST (FILE DOWNLOAD)
$content = curl_exec ($ch);

// CLOSE CURL
curl_close ($ch); 

/*
  At this point you can do do whatever you want
  with the downloaded file stored in $content :
  display it, save it as file, and so on.
*/

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1 樓住戶：jeff
發表時間：2012-07-18

# Define target page
$target = "http://www.schrenk.com/nostarch/webbots/cookie_authentication/index.php";

# Define the login form data
$form_data="enter=Enter&username=webbot&password=sp1der3";

# Create the cURL session
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target); // Define target site
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); // Return page in string
curl_setopt($ch, CURLOPT_COOKIEJAR, "cookies.txt"); // Tell cURL where to write cookies
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookies.txt"); // Tell cURL which cookies to send
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $form_data);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE); // Follow redirects

# Execute the PHP/CURL session and echo the downloaded page
$page = curl_exec($ch);
echo $page;

# Close the cURL session
curl_close($ch);
?>

Query Session 認證

# Define target page
$target = "http://www.schrenk.com/nostarch/webbots/basic_authentication/index.php";

# Define login credentials for this page
$credentials = "webbot:sp1der3";

# Create the cURL session
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target); // Define target site
curl_setopt($ch, CURLOPT_USERPWD, $credentials); // Send credentials
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); // Return page in string

# Echo page
$page = curl_exec($ch); // Place web page into a string
echo $page; // Echo downloaded page

# Close the cURL session
curl_close($ch);
?>

# Include libraries
include("LIB_http.php");
include("LIB_parse.php");

# Request the login page
$domain = "http://www.schrenk.com/";
$target = $domain."nostarch/webbots/query_authentication";
$page_array = http_get($target, $ref="");
echo $page_array['FILE']; // Display the login page
sleep(2); // Include small delay between page fetches
echo "

";

# Send the query authentication form
$login = $domain."nostarch/webbots/query_authentication/index.php";
$data_array['enter'] = "Enter";
$data_array['username'] = "webbot";
$data_array['password'] = "sp1der3";
$page_array = http_post_form($login, $ref=$target, $data_array);
echo $page_array['FILE']; // Display first page after login page
sleep(2); // Include small delay between page fetches
echo "

";

# Parse session variable
$session = return_between($page_array['FILE'], "session=", "\"", EXCL);

# Request subsequent pages using the session variable
$page2 = $target . "/index2.php?session=".$session;
$page_array = http_get($page2, $ref="");
echo $page_array['FILE']; // Display page two
?>

2 樓住戶：阿凱
發表時間：2012-07-19

/* STEP 1. let’s create a cookie file */
$ckfile = tempnam ("/tmp", "CURLCOOKIE");

/* STEP 2. visit the homepage to set the cookie properly */
$ch = curl_init ("http://somedomain.com/");
curl_setopt ($ch, CURLOPT_COOKIEJAR, $ckfile);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec ($ch);

/* STEP 3. visit cookiepage.php */
$ch = curl_init ("http://somedomain.com/cookiepage.php");
curl_setopt ($ch, CURLOPT_COOKIEFILE, $ckfile);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec ($ch);

/* here you can do whatever you want with $output */
?>

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