function email_verify_enable in Email Verify 6

Same name and namespace in other branches

1. 5 email_verify.install \email_verify_enable()

Implementation of hook_enable().

File

./email_verify.install, line 10

Install the email verify module

Code

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?
  $mx_hosts = array();
  include_once dirname(__FILE__) . '/windows_compat.inc';
  if (!getmxrr($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',
    ));
  }
}