register_hook($event, 'BEFORE', $this, '_handle'); } } function _handle($event, $param) { if (!in_array($event->data, array('recommend', 'plugin_recommend')) || !isset($_SERVER['REMOTE_USER'])) { return; } $event->preventDefault(); if ($event->name === 'ACTION_ACT_PREPROCESS') { return; } $event->stopPropagation(); if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['sectok']) && !($err = $this->_handle_post())) { if ($event->name === 'AJAX_CALL_UNKNOWN') { /* To signal success to AJAX. */ header('HTTP/1.1 204 No Content'); return; } echo 'Thanks for recommending our site.'; return; } /* To display msgs even via AJAX. */ echo ' '; if (isset($err)) { msg($err, -1); } $this->_show_form(); } function _show_form() { $name = isset($_REQUEST['r_name']) ? $_REQUEST['r_name'] : ''; $mail = isset($_REQUEST['r_email']) ? $_REQUEST['r_email'] : ''; $comment = isset($_REQUEST['comment']) ? $_REQUEST['r_comment'] : ''; if (isset($_REQUEST['id'])) { $id = $_REQUEST['id']; } else { global $ID; if (!isset($ID)) { throw new Exception('Unknown page'); } $id = $ID; } $form = new Doku_Form('recommend_plugin', '?do=recommend'); $form->addHidden('id', $id); $form->startFieldset('Recommend page “' . hsc($id). '”'); $form->addElement(form_makeTextField('r_name', $name, 'Recipient name')); $form->addElement(form_makeTextField('r_email', $mail, 'Recipient email address')); $form->addElement(''.hsc('Additional comment').''. '' . $comment . ''); $form->addElement(form_makeButton('submit', '', 'Send recommendation')); $form->addElement(form_makeButton('submit', 'cancel', 'Cancel')); $form->printForm(); } function _handle_post() { /* Validate input. */ if (!isset($_POST['r_email']) || !mail_isvalid($_POST['r_email'])) { return 'Invalid email address submitted'; } $email = $_POST['r_email']; if (!isset($_POST['id']) || !page_exists($_POST['id'])) { return 'Invalid page submitted'; } $page = $_POST['id']; if (!isset($_POST['r_name']) || trim($_POST['r_name']) === '') { return 'Invalid name submitted'; } $name = $_POST['r_name']; $comment = isset($_POST['comment']) ? $_POST['comment'] : null; /* Prepare mail text. */ $mailtext = file_get_contents(dirname(__FILE__).'/template.txt'); global $conf; global $USERINFO; foreach (array('NAME' => $name, 'PAGE' => $page, 'SITE' => $conf['title'], 'URL' => wl($page, '', true), 'COMMENT' => $comment, 'AUTHOR' => $USERINFO['name']) as $var => $val) { $mailtext = str_replace('@' . $var . '@', $val, $mailtext); } /* Limit to two empty lines. */ $mailtext = preg_replace('/\n{4,}/', "\n\n\n", $mailtext); /* Perform stuff. */ mail_send($email, 'Page recommendation', $mailtext); $this->_log($USERINFO['mail'], $email); return false; } function _log($sender, $receiver) { global $ID; $path = DOKU_INC.'data/cache/recommend'; if (!file_exists($path)) { mkdir($path); } file_put_contents($path . '/' . date('Y-m') . '.log', date('r') . ': ' . "“${sender}” recommended “${ID}” to “${receiver}”.", FILE_APPEND); } }