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POPaypal IPN Callback not working with sandbox
 

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  1. POPaypal IPN Callback not working with sandbox
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    <p>I am working with Drupal 7 &amp; have implemented paypal by coding at one place where my user is suppose to register by paying at paypal &amp; when he returns back I have to register him in callback function if payment is verified. My callback function is simply not working &amp; all the variables values which I am suppose to get in callback is also returning me false...</p> <p>Here is my code --</p> <p>This one I am using to send user to paypal with values--</p> <pre><code>function user_type_register_form_submit($form, &amp;$form_state){ global $base_url; $username = $form_state['values']['name']; $user_email = $form_state['values']['mail']; $user_type = $form_state['values']['user_type']; $user_first_name = $form_state['values']['field_first_name']['und'][0]['value']; $user_last_name = $form_state['values']['field_last_name']['und'][0]['value']; $user_company_name = $form_state['values']['field_company_name']['und'][0]['value']; $user_address_line_1 = $form_state['values']['field_address_line_1']['und'][0]['value']; $user_address_line_2 = $form_state['values']['field_address_line_2']['und'][0]['value']; $user_city = $form_state['values']['field_user_city']['und'][0]['value']; $user_state = $form_state['values']['field_user_state']['und'][0]['value']; $user_zip = $form_state['values']['field_user_zip']['und'][0]['value']; $user_phone_number = $form_state['values']['field_phone_number_']['und'][0]['value']; $user_mobile_number = $form_state['values']['field_mobile_number_']['und'][0]['value']; $user_fax_number = $form_state['values']['field_fax_number_']['und'][0]['value']; $paypal = array(); $paypal['cmd'] = '_xclick'; $paypal['business'] = 'rajeev_1359782736_biz@gmail.com'; $paypal['page_style'] = 'Primary'; $paypal['bn'] = 'PP-DonationsBF'; $paypal['item_name'] = 'Membership'; $paypal['currency_code'] = 'USD'; $paypal['no_shipping'] = '1'; $paypal['tax'] = '0'; $paypal['lc'] = 'US'; $paypal['rm'] = '1'; $paypal['return'] = $base_url.'/?q=paypal/payment'; $paypal['cancel_return'] = $base_url.'/?q=user/register'; $paypal['uname'] = $username; $paypal['email'] = $user_email; $paypal['user_type'] = $user_type; $paypal['first_name'] = $user_first_name; $paypal['last_name'] = $user_last_name; $paypal['comp_name'] = $user_company_name; $paypal['address1'] = $user_address_line_1; $paypal['address2'] = $user_address_line_2; $paypal['city'] = $user_city; $paypal['state'] = $user_state; $paypal['zip'] = $user_zip; $paypal['phone'] = $user_phone_number; $paypal['mobile'] = $user_mobile_number; $paypal['fax'] = $user_fax_number; switch($user_type){ case '0': dpm("General"); $membership_price = 50; $paypal['amount'] = $membership_price; $paypal['item_number'] = 1; $query = http_build_query($paypal, '', '&amp;'); $form_state['redirect'] = 'https://www.sandbox.paypal.com/cgi-bin/webscr?' .$query; break; case '1': dpm("Student"); $membership_price = 50; $paypal['amount'] = $membership_price; $paypal['item_number'] = 2; $query = http_build_query($paypal, '', '&amp;'); $form_state['redirect'] = 'https://www.sandbox.paypal.com/cgi-bin/webscr?' .$query; break; case '2': dpm("Government"); $membership_price = 50; $paypal['amount'] = $membership_price; $paypal['item_number'] = 3; $query = http_build_query($paypal, '', '&amp;'); $form_state['redirect'] = 'https://www.sandbox.paypal.com/cgi-bin/webscr?' .$query; break; } } </code></pre> <p>I debugged the query which sending user to paypal &amp; it's look like --</p> <pre><code>cmd=_xclick&amp;business=rajeev_1359782736_biz%40gmail.com&amp;page_style=Primary&amp;bn=PP-DonationsBF&amp;item_name=Membership&amp;currency_code=USD&amp;no_shipping=1&amp;tax=0&amp;lc=US&amp;rm=1&amp;return=http%3A%2F%2Fctaep-test.kr001.us%2F%3Fq%3Dpaypal%2Fpayment&amp;cancel_return=http%3A%2F%2Fctaep-test.kr001.us%2F%3Fq%3Duser%2Fregister&amp;uname=admin_list&amp;email=rajeevkr.dei%40gmail.com&amp;user_type=0&amp;first_name=Rajeev&amp;last_name=Kumar&amp;comp_name=&amp;address1=sector+27&amp;address2=&amp;city=noida&amp;state=ky&amp;zip=201301&amp;phone=9650361380&amp;mobile=&amp;fax=&amp;amount=50&amp;item_number=1 </code></pre> <p>This function I am using to receive the callback -- </p> <pre><code>function paypal_payment_paypal_ipn_callback($vars = array()){ header("Content-type: text/html"); header("Expires: Wed, 29 Jan 1975 04:15:00 GMT"); header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); header("Cache-Control: no-cache, must-revalidate"); header("Pragma: no-cache"); watchdog('paypal', '1'); // read the post from PayPal system and add 'cmd' $req = 'cmd=_notify-validate'; foreach ($_POST as $key =&gt; $value) { $value = urlencode(stripslashes($value)); $req .= "&amp;$key=$value"; } watchdog('paypal', '2'); // post back to PayPal system to validate $header = ''; $header .= "POST /cgi-bin/webscr HTTP/1.0\r\n"; $header .= "Content-Type: application/x-www-form-urlencoded\r\n"; $header .= "Host: www.sandbox.paypal.com\r\n"; $header .= "Content-Length: " . strlen($req) . "\r\n\r\n"; $fp = fsockopen ('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30); //Added - new // reading posted data from directly from $_POST causes serialization // issues with array data in POST // reading raw POST data from input stream instead. $raw_post_data = file_get_contents('php://input'); $raw_post_array = explode('&amp;', $raw_post_data); $myPost = array(); foreach ($raw_post_array as $keyval) { $keyval = explode ('=', $keyval); if (count($keyval) == 2) $myPost[$keyval[0]] = urldecode($keyval[1]); } // read the post from PayPal system and add 'cmd' $req = 'cmd=_notify-validate'; if(function_exists('get_magic_quotes_gpc')) { $get_magic_quotes_exists = true; } foreach ($myPost as $key =&gt; $value) { if($get_magic_quotes_exists == true &amp;&amp; get_magic_quotes_gpc() == 1) { $value = urlencode(stripslashes($value)); } else { $value = urlencode($value); } $req .= "&amp;$key=$value"; } // STEP 2: Post IPN data back to paypal to validate $ch = curl_init('https://www.sandbox.paypal.com/cgi-bin/webscr'); curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); curl_setopt($ch, CURLOPT_POSTFIELDS, $req); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); curl_setopt($ch, CURLOPT_FORBID_REUSE, 1); curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close')); // In wamp like environments that do not come bundled with root authority certificates, // please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path // of the certificate as shown below. // curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/cacert.pem'); if( !($res = curl_exec($ch)) ) { // error_log("Got " . curl_error($ch) . " when processing IPN data"); curl_close($ch); exit; } curl_close($ch); //Added end if (!$fp) { watchdog('paypal', 'HTTP error'); } else { fputs ($fp, $header . $req); watchdog('paypal', $header . $req); while (!feof($fp)) { $res = fgets ($fp, 1024); watchdog('paypal', '3'); //dpm($res); watchdog('pay_status',$res); if (strcmp ($res, "VERIFIED") == 0) { //if (strcmp ($res, "INVALID") == 0) { // assign posted variables to local variables //$txn_id = $_POST['txn_id']; watchdog('paypal', '4'); //Information about you: $receiver_email = $_POST['business']; //Information about the transaction: $item_name = $_POST['item_name']; $item_number = $_POST['item_number']; $payment_status = $_POST['payment_status']; $payment_amount = $_POST['mc_gross']; $payment_currency = $_POST['mc_currency']; $txn_id = $_POST['txn_id']; $receiver_email = $_POST['receiver_email']; $payer_email = $_POST['payer_email']; dpm($receiver_email); //Information about your buyer: $user_email = $_POST['email']; $user_name = $_POST['uname']; $first_name = $_POST['first_name']; $last_name = $_POST['last_name']; $company_name = $_POST['comp_name']; $address_address_line_1 = $_POST['address1']; $address_address_line_2 = $_POST['address2']; $address_city = $_POST['city']; $address_state = $_POST['state']; $address_zip = $_POST['zip']; $user_phone = $_POST['phone']; $user_mobile = $_POST['mobile']; $user_fax = $_POST['fax']; //Information about the payment: $membership_type = $_POST['item_name']; //Other information about the transaction: //watchdog('paypal', '4'); // check the payment_status is Completed // check that txn_id has not been previously processed // check that receiver_email is your Primary PayPal email // check that payment_amount/payment_currency are correct // process payment $password = user_password(8); $fields = array( 'name' =&gt; $user_name, 'mail' =&gt; $user_email, 'pass' =&gt; $password, 'status' =&gt; 1, 'init' =&gt; $user_email, 'roles' =&gt; array( DRUPAL_AUTHENTICATED_RID =&gt; $membership_type,), ); // user_save('', $fields); $account = user_save('', $fields); dpm("user registered"); } else if (stripos($res, "VERIFIED") !== false) { watchdog('paypal', 'INVALID'); // log for manual investigation } } fclose ($fp); } return 'Callback Complete'; } </code></pre> <p>Here is my watchdog errors --</p> <pre><code>inside-callback : 1 Notice: Undefined index: item_name in paypal_payment_paypal_ipn_callback() Notice: Undefined index: item_number in paypal_payment_paypal_ipn_callback() Notice: Undefined index: payment_status in paypal_payment_paypal_ipn_callback() Notice: Undefined index: mc_gross in paypal_payment_paypal_ipn_callback() Notice: Undefined index: mc_currency in paypal_payment_paypal_ipn_callback() Notice: Undefined index: txn_id in paypal_payment_paypal_ipn_callback() Notice: Undefined index: receiver_email in paypal_payment_paypal_ipn_callback() Notice: Undefined index: payer_email in paypal_payment_paypal_ipn_callback() inside-invalid : 4 </code></pre>
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    1. USRajeevK
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    1. COAre you trying this from your local server ?
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      1. UShsuk
    2. CO@hsuk - I am trying this live, you can register here(if you wish to check by some sandbox account) - http://ctaep-test.kr001.us
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      1. USRajeevK
    3. COI found myself in a similar situation while ago, then i found this library: https://github.com/Quixotix/PHP-PayPal-IPN really helped me!
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      1. USeldblz
 

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