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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 738 | * Checks if a user is logged in, if not it redirects them to the login page. |
| 739 | * |
| 740 | * @since 1.5 |
| 741 | */ |
| 742 | function auth_redirect() { |
| 743 | // Checks if a user is logged in, if not redirects them to the login page |
| 744 | |
| 745 | $secure = ( is_ssl() || force_ssl_admin() ); |
| 746 | |
| 747 | $secure = apply_filters('secure_auth_redirect', $secure); |
| 748 | |
| 749 | // If https is required and request is http, redirect |
| 750 | if ( $secure && !is_ssl() && false !== strpos($_SERVER['REQUEST_URI'], 'wp-admin') ) { |
| 751 | if ( 0 === strpos($_SERVER['REQUEST_URI'], 'http') ) { |
| 752 | wp_redirect(preg_replace('|^http://|', 'https://', $_SERVER['REQUEST_URI'])); |
| 753 | exit(); |
| 754 | } else { |
| 755 | wp_redirect('https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']); |
| 756 | exit(); |