modules/email_verify/email_verify.install

<?php
// $Id: email_verify.install,v 1.2 2009/02/04 22:01:18 dbr Exp $
/**
 * @file
 * Install the email verify module
 */

/**
 * Implementation of hook_enable().
 */
function email_verify_enable() {
  // Check that fsockopen() works on port 25.
  // See: http://drupal.org/node/147883

  // What follows is an adapted version of email_verify_check().
  // The documentation http://api.drupal.org/api/5/function/hook_install says:
  //   "Note that since this function is called from a full bootstrap, all functions 
  //    (including those in modules enabled by the current page request) are available 
  //    when this hook is called. Use cases could be displaying a user message, or 
  //    calling a module function necessary for initial setup, etc."
  // However, this does not seem to be the case, so we can't reuse email_verify_check().

  $host = 'drupal.org';
  // What SMTP servers should we contact?
  $mx_hosts = array();

  if (!getmxrr($host, $mx_hosts)) {
    // When there is no MX record, the host itself should be used
    $mx_hosts[] = $host;
  }

  // Try to connect to one SMTP server
  foreach ($mx_hosts as $smtp) {
    $connect = @fsockopen($smtp, 25, $errno, $errstr, 15);
    if (!$connect) {
      continue;
    }

    if (ereg("^220", $out = fgets($connect, 1024))) {
      // OK, we have a SMTP connection
      break;
    }

  }

  if (!$connect) {
    $message = t('Email verify has tried contacting the mail host but did not receive a reply.'
      .' Check with your hosting provider that the function fsockopen() is properly configured on your server,'
      .' and that port 25 is open. The module has been disabled.');

    watchdog('email_verify', $message, WATCHDOG_ERROR);
    drupal_set_message($message, 'error');
    module_disable(array('email_verify'));
  }
}

1	<?php
2	// $Id: email_verify.install,v 1.2 2009/02/04 22:01:18 dbr Exp $
3	/**
4	* @file
5	* Install the email verify module
6	*/
7
8	/**
9	* Implementation of hook_enable().
10	*/
11	function email_verify_enable() {
12	// Check that fsockopen() works on port 25.
13	// See: http://drupal.org/node/147883
14
15	// What follows is an adapted version of email_verify_check().
16	// The documentation http://api.drupal.org/api/5/function/hook_install says:
17	// "Note that since this function is called from a full bootstrap, all functions
18	// (including those in modules enabled by the current page request) are available
19	// when this hook is called. Use cases could be displaying a user message, or
20	// calling a module function necessary for initial setup, etc."
21	// However, this does not seem to be the case, so we can't reuse email_verify_check().
22
23	$host = 'drupal.org';
24	// What SMTP servers should we contact?
25	$mx_hosts = array();
26
27	if (!getmxrr($host, $mx_hosts)) {
28	// When there is no MX record, the host itself should be used
29	$mx_hosts[] = $host;
30	}
31
32	// Try to connect to one SMTP server
33	foreach ($mx_hosts as $smtp) {
34	$connect = @fsockopen($smtp, 25, $errno, $errstr, 15);
35	if (!$connect) {
36	continue;
37	}
38
39	if (ereg("^220", $out = fgets($connect, 1024))) {
40	// OK, we have a SMTP connection
41	break;
42	}
43
44	}
45
46	if (!$connect) {
47	$message = t('Email verify has tried contacting the mail host but did not receive a reply.'
48	.' Check with your hosting provider that the function fsockopen() is properly configured on your server,'
49	.' and that port 25 is open. The module has been disabled.');
50
51	watchdog('email_verify', $message, WATCHDOG_ERROR);
52	drupal_set_message($message, 'error');
53	module_disable(array('email_verify'));
54	}
55	}
56