nonce.php
133 lines
| 5.6 KiB
| text/x-php
|
PhpLexer
/ include / nonce.php
| r1 | <?php | ||
| function check_nonce($action) { | |||
| if( !verify_nonce($_REQUEST['_mtnonce'], $action) ) { | |||
| wp_nonce_ays($action); | |||
| } | |||
| } | |||
| /* | |||
| Use nonce lifetime of 20 minutes. | |||
| 2 time slices, 10 minutes long each. | |||
| Older nonces will trigger AYS | |||
| */ | |||
| if ( !function_exists('verify_nonce') ) : | |||
| function verify_nonce($nonce, $action = -1) { | |||
| global $currentuser; | |||
| $uid = (int) $currentuser->id; | |||
| $i = ceil(time() / 600); | |||
| //Allow for expanding range, but only do one check if we can | |||
| if( substr( md5($i . '|' . $action . $uid), -12, 10) == $nonce || substr( md5(($i - 1) . '|' . $action . $uid), -12, 10) == $nonce ) | |||
| return true; | |||
| return false; | |||
| } | |||
| endif; | |||
| if ( !function_exists('create_nonce') ) : | |||
| function create_nonce($action = -1) { | |||
| global $currentuser; | |||
| $uid = (int) $currentuser->id; | |||
| $i = ceil(time() / 600); | |||
| return substr( md5($i . '|' . $action . $uid), -12, 10); | |||
| } | |||
| endif; | |||
| function wp_nonce_ays($action) { | |||
| if ( preg_match('#([^/]+\.php)$#', $_SERVER["PHP_SELF"], $self_matches) ) { | |||
| $pagenow = $self_matches[1]; | |||
| } elseif ( strpos($_SERVER["PHP_SELF"], '?') !== false ) { | |||
| $pagenow = explode('/', $_SERVER["PHP_SELF"]); | |||
| $pagenow = trim($pagenow[(sizeof($pagenow)-1)]); | |||
| $pagenow = explode('?', $pagenow); | |||
| $pagenow = $pagenow[0]; | |||
| } else { | |||
| $pagenow = 'index.php'; | |||
| } | |||
| $adminurl = clean_url(wp_get_referer()); | |||
| $html='The attempted operation is potentially unsafe.</p>'; | |||
| if ( $_POST ) { | |||
| $q = http_build_query($_POST); | |||
| $q = explode( ini_get('arg_separator.output'), $q); | |||
| $html .= "\t<form method='post' action='" . htmlentities($pagenow) . "'>\n"; | |||
| foreach ( (array) $q as $a ) { | |||
| $v = substr(strstr($a, '='), 1); | |||
| $k = substr($a, 0, -(strlen($v)+1)); | |||
| $html .= "\t\t<input type='hidden' name='" . mt_specialchars(urldecode($k),true) . "' value='" . mt_specialchars(urldecode($v),true) . "' />\n"; | |||
| } | |||
| $html .= "\t\t<input type='hidden' name='_mtnonce' value='" . create_nonce($action) . "' />\n"; | |||
| $html .= "\t\t<div id='message' class='confirm fade'>\n\t\t<p>" . mt_explain_nonce($action) . "</p>\n\t\t<p><a href='$adminurl'>No</a> <input type='submit' value='Yes' /></p>\n\t\t</div>\n\t</form><p>\n"; | |||
| } else { | |||
| $html .= "\t<div id='message' class='confirm fade'>\n\t<p>" . mt_explain_nonce($action) . "</p>\n\t<p><a href='$adminurl'>No</a> <a href='" . clean_url(add_query_arg( '_mtnonce', create_nonce($action), $_SERVER['REQUEST_URI'] )) . "'>Yes</a></p>\n\t</div><p>\n"; | |||
| } | |||
| mtdie($html, 'Are You Sure?'); | |||
| } | |||
| function mt_explain_nonce($action) { | |||
| global $mtdb; | |||
| $c = explode('-',$action); | |||
| $i = (int)$c[2]; | |||
| $message = array(); | |||
| $message['rant']['new'] = 'Are you sure you want to create a new rant?'; | |||
| $message['rant']['save'] = 'Are you sure you want to save changes to the rant "%s"?'; | |||
| $message['rant']['delete'] = 'Are you sure you want to delete the rant "%s"? This is a destructive action, and cannot be undone!'; | |||
| $message['type']['new'] = 'Are you sure you want to create a new type?'; | |||
| $message['type']['save'] = 'Are you sure you want to save changes to the type "%s"?'; | |||
| $message['type']['delete'] = 'Are you sure you want to delete the type "%s"? This is a destructive action, and cannot be undone!'; | |||
| $message['metatype']['new'] = 'Are you sure you want to create a new metatype?'; | |||
| $message['metatype']['save'] = 'Are you sure you want to save changes to the metatype "%s"?'; | |||
| $message['metatype']['delete'] = 'Are you sure you want to delete the metatype "%s"? This is a destructive action, and cannot be undone!'; | |||
| $message['strip']['new'] = 'Are you sure you want to create a new strip?'; | |||
| $message['strip']['save'] = 'Are you sure you want to save changes to the strip "%s"?'; | |||
| $message['strip']['delete'] = 'Are you sure you want to delete the comic strip "%1$s"? This will break site navigation, which can be fixed by changing other strip numbers. This is a destructive action, and cannot be undone! It is far better to <a href="edit-comic.php?strip_id=%1$s">edit the existing strip</a>.'; | |||
| $message['strip']['swap'] = 'Are you sure you want to swap these two strips? This is a destructive action, and cannot be undone!'; | |||
| $message['statusbox']['update'] = 'Are you sure you want to update the statusbox information?'; | |||
| $message['scratchpad']['new'] = 'Are you sure you want to update the scratchpad information?'; | |||
| $message['twitter']['new'] = 'Are you sure you want to update the Twitter feed?'; | |||
| $message['extra']['new'] = 'Are you sure you want to upload a new file to /extra?'; | |||
| $message['extra']['delete'] = 'Are you sure you want to delete the file from /extra named "%s"?'; | |||
| $message['twitteruser']['delete'] = 'Are you sure you want to delete the twitter user "%s"?'; | |||
| if( isset( $message[ $c[1] ][ $c[0] ] )) { | |||
| $t = $message[ $c[1] ][ $c[0] ]; | |||
| if( false !== strpos( $t, '%' ) ) { | |||
| switch( $c[1] ) { | |||
| case 'rant': $v = $mtdb->getOne('SELECT title FROM rant WHERE id=' . $i); break; | |||
| case 'strip': $v = $mtdb->getOne('SELECT id FROM strip WHERE id=' . $i); break; | |||
| case 'type': $v = $mtdb->getOne('SELECT name FROM strip_t WHERE id=' . $i); break; | |||
| case 'metatype':$v = $mtdb->getOne('SELECT name FROM meta_t WHERE id=' . $i); break; | |||
| case 'extra': $temp = extra_file_from_inode($i); $v = $temp->name; break; | |||
| case 'twitteruser': $v = $mtdb->getOne('SELECT username FROM twitter_user WHERE id=' . $i); break; | |||
| default: $v = $i; | |||
| } | |||
| return sprintf( $t, mt_specialchars($v,true) ); | |||
| } | |||
| return $t; | |||
| } | |||
| return "Are you sure you want to perform the action $action?"; | |||
| } | |||
| function nonce_field($action) { | |||
| echo '<input type="hidden" name="_mtnonce" value="' . create_nonce($action) . '" />'; | |||
| } | |||
| ?> |
