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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 |
|---|---|
| 1110 | $user_id = wp_validate_auth_cookie( '', $scheme ); |
| 1111 | if ( $user_id ) { |
| 1112 | /** |
| 1113 | * Fires before the authentication redirect. |
| 1114 | * |
| 1115 | * @since 2.8.0 |
| 1116 | * |
| 1117 | * @param int $user_id User ID. |
| 1118 | */ |
| 1119 | do_action( 'auth_redirect', $user_id ); |
| 1120 | |
| 1121 | // If the user wants ssl but the session is not ssl, redirect. |
| 1122 | if ( ! $secure && get_user_option( 'use_ssl', $user_id ) && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) { |
| 1123 | if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { |
| 1124 | wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); |
| 1125 | exit; |
| 1126 | } else { |
| 1127 | wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); |
| 1128 | exit; |