function 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
- CommentActionsTestCase::testCommentPublishUnpublishHooks in modules/
comment/ comment.test - Test comment publish and unpublish hooks.
- 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.
4 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
- IPAddressBlockingTestCase::testDuplicateIpAddress in modules/
system/ system.test - Test duplicate IP addresses are not present in the 'blocked_ips' table.
File
-
includes/
bootstrap.inc, line 3286
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, $reverse_proxy_addresses);
if (!empty($untrusted)) {
// The right-most IP is the most specific we can trust.
$ip_address = array_pop($untrusted);
}
else {
// All IP addresses in the forwarded array are configured proxy IPs
// (and thus trusted). We take the leftmost IP.
$ip_address = array_shift($forwarded);
}
}
}
}
return $ip_address;
}
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