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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 |
|---|---|
| 1017 | |
| 1018 | if ( $user_id = wp_validate_auth_cookie( '', $scheme) ) { |
| 1019 | /** |
| 1020 | * Fires before the authentication redirect. |
| 1021 | * |
| 1022 | * @since 2.8.0 |
| 1023 | * |
| 1024 | * @param int $user_id User ID. |
| 1025 | */ |
| 1026 | do_action( 'auth_redirect', $user_id ); |
| 1027 | |
| 1028 | // If the user wants ssl but the session is not ssl, redirect. |
| 1029 | if ( !$secure && get_user_option('use_ssl', $user_id) && false !== strpos($_SERVER['REQUEST_URI'], 'wp-admin') ) { |
| 1030 | if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { |
| 1031 | wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); |
| 1032 | exit(); |
| 1033 | } else { |
| 1034 | wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); |
| 1035 | exit(); |