function ip_address

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7 bootstrap.inc ip_address()
6 bootstrap.inc ip_address()

Returns the IP address of the client machine.

If Drupal is behind a reverse proxy, we use the X-Forwarded-For header instead of $_SERVER['REMOTE_ADDR'], which would be the IP address of the proxy server, and not the client's. The actual header name can be configured by the reverse_proxy_header variable.

Return value

IP address of client machine, adjusted for reverse proxy and/or cluster environments.

23 calls to ip_address()
BootstrapIPAddressTestCase::testIPAddressHost in modules/simpletest/tests/bootstrap.test
test IP Address and hostname
CommentInterfaceTest::setEnvironment in modules/comment/comment.test
Re-configures the environment, module settings, and user permissions.
CommentInterfaceTest::testCommentNewCommentsIndicator in modules/comment/comment.test
Tests new comment marker.
comment_save in modules/comment/comment.module
Accepts a submission of new or changed comment content.
DBLogTestCase::generateLogEntries in modules/dblog/dblog.test
Generates a number of random database log events.

... See full list

3 string references to 'ip_address'
BootstrapIPAddressTestCase::setUp in modules/simpletest/tests/bootstrap.test
Sets up a Drupal site for running functional and integration tests.
BootstrapIPAddressTestCase::tearDown in modules/simpletest/tests/bootstrap.test
Delete created files and temporary files directory, delete the tables created by setUp(), and reset the database prefix.
BootstrapIPAddressTestCase::testIPAddressHost in modules/simpletest/tests/bootstrap.test
test IP Address and hostname

File

includes/bootstrap.inc, line 2890
Functions that need to be loaded on every Drupal request.

Code

function ip_address() {
  $ip_address = &drupal_static(__FUNCTION__);

  if (!isset($ip_address)) {
    $ip_address = $_SERVER['REMOTE_ADDR'];

    if (variable_get('reverse_proxy', 0)) {
      $reverse_proxy_header = variable_get('reverse_proxy_header', 'HTTP_X_FORWARDED_FOR');
      if (!empty($_SERVER[$reverse_proxy_header])) {
        // If an array of known reverse proxy IPs is provided, then trust
        // the XFF header if request really comes from one of them.
        $reverse_proxy_addresses = variable_get('reverse_proxy_addresses', array());

        // Turn XFF header into an array.
        $forwarded = explode(',', $_SERVER[$reverse_proxy_header]);

        // Trim the forwarded IPs; they may have been delimited by commas and spaces.
        $forwarded = array_map('trim', $forwarded);

        // Tack direct client IP onto end of forwarded array.
        $forwarded[] = $ip_address;

        // Eliminate all trusted IPs.
        $untrusted = array_diff($forwarded, $reverse_proxy_addresses);

        // The right-most IP is the most specific we can trust.
        $ip_address = array_pop($untrusted);
      }
    }
  }

  return $ip_address;
}