diff options
Diffstat (limited to 'phpBB/includes/captcha/plugins/phpbb_captcha_qa_plugin.php')
| -rw-r--r-- | phpBB/includes/captcha/plugins/phpbb_captcha_qa_plugin.php | 1022 |
1 files changed, 0 insertions, 1022 deletions
diff --git a/phpBB/includes/captcha/plugins/phpbb_captcha_qa_plugin.php b/phpBB/includes/captcha/plugins/phpbb_captcha_qa_plugin.php deleted file mode 100644 index 45f76bd676..0000000000 --- a/phpBB/includes/captcha/plugins/phpbb_captcha_qa_plugin.php +++ /dev/null @@ -1,1022 +0,0 @@ -<?php -/** -* -* @package VC -* @version $Id$ -* @copyright (c) 2006, 2008 phpBB Group -* @license http://opensource.org/licenses/gpl-license.php GNU Public License -* -*/ - -/** -* @ignore -*/ -if (!defined('IN_PHPBB')) -{ - exit; -} - -global $table_prefix; - -define('CAPTCHA_QUESTIONS_TABLE', $table_prefix . 'captcha_questions'); -define('CAPTCHA_ANSWERS_TABLE', $table_prefix . 'captcha_answers'); -define('CAPTCHA_QA_CONFIRM_TABLE', $table_prefix . 'qa_confirm'); - -/** -* And now to something completely different. Let's make a captcha without extending the abstract class. -* QA CAPTCHA sample implementation -* -* @package VC -*/ -class phpbb_captcha_qa -{ - var $confirm_id; - var $answer; - var $question_ids; - var $question_text; - var $question_lang; - var $question_strict; - var $attempts = 0; - var $type; - // dirty trick: 0 is false, but can still encode that the captcha is not yet validated - var $solved = 0; - - /** - * @param int $type as per the CAPTCHA API docs, the type - */ - function init($type) - { - global $config, $db, $user; - - // load our language file - $user->add_lang('captcha_qa'); - - // read input - $this->confirm_id = request_var('qa_confirm_id', ''); - $this->answer = utf8_normalize_nfc(request_var('qa_answer', '', true)); - - $this->type = (int) $type; - $this->question_lang = $user->lang_name; - - // we need all defined questions - shouldn't be too many, so we can just grab them - // try the user's lang first - $sql = 'SELECT question_id - FROM ' . CAPTCHA_QUESTIONS_TABLE . " - WHERE lang_iso = '" . $db->sql_escape($user->lang_name) . "'"; - $result = $db->sql_query($sql, 3600); - - while ($row = $db->sql_fetchrow($result)) - { - $this->question_ids[$row['question_id']] = $row['question_id']; - } - $db->sql_freeresult($result); - - // fallback to the board default lang - if (!sizeof($this->question_ids)) - { - $this->question_lang = $config['default_lang']; - - $sql = 'SELECT question_id - FROM ' . CAPTCHA_QUESTIONS_TABLE . " - WHERE lang_iso = '" . $db->sql_escape($config['default_lang']) . "'"; - $result = $db->sql_query($sql, 7200); - - while ($row = $db->sql_fetchrow($result)) - { - $this->question_ids[$row['question_id']] = $row['question_id']; - } - $db->sql_freeresult($result); - } - - // okay, if there is a confirm_id, we try to load that confirm's state. If not, we try to find one - if (!$this->load_answer() && (!$this->load_confirm_id() || !$this->load_answer())) - { - // we have no valid confirm ID, better get ready to ask something - $this->select_question(); - } - } - - /** - * API function - */ - function &get_instance() - { - $instance =& new phpbb_captcha_qa(); - - return $instance; - } - - /** - * See if the captcha has created its tables. - */ - function is_installed() - { - global $db, $phpbb_root_path, $phpEx; - - if (!class_exists('phpbb_db_tools')) - { - include("$phpbb_root_path/includes/db/db_tools.$phpEx"); - } - $db_tool = new phpbb_db_tools($db); - - return $db_tool->sql_table_exists(CAPTCHA_QUESTIONS_TABLE); - } - - /** - * API function - for the captcha to be available, it must have installed itself and there has to be at least one question in the board's default lang - */ - function is_available() - { - global $config, $db, $phpbb_root_path, $phpEx, $user; - - // load language file for pretty display in the ACP dropdown - $user->add_lang('captcha_qa'); - - if (!phpbb_captcha_qa::is_installed()) - { - return false; - } - - $sql = 'SELECT COUNT(question_id) AS question_count - FROM ' . CAPTCHA_QUESTIONS_TABLE . " - WHERE lang_iso = '" . $db->sql_escape($config['default_lang']) . "'"; - $result = $db->sql_query($sql); - $row = $db->sql_fetchrow($result); - $db->sql_freeresult($result); - - return ((bool) $row['question_count']); - } - - /** - * API function - */ - function has_config() - { - return true; - } - - /** - * API function - */ - function get_name() - { - return 'CAPTCHA_QA'; - } - - /** - * API function - */ - function get_class_name() - { - return 'phpbb_captcha_qa'; - } - - /** - * API function - not needed as we don't display an image - */ - function execute_demo() - { - } - - /** - * API function - not needed as we don't display an image - */ - function execute() - { - } - - /** - * API function - send the question to the template - */ - function get_template() - { - global $template; - - if ($this->is_solved()) - { - return false; - } - else - { - $template->assign_vars(array( - 'QA_CONFIRM_QUESTION' => $this->question_text, - 'QA_CONFIRM_ID' => $this->confirm_id, - 'S_CONFIRM_CODE' => true, - 'S_TYPE' => $this->type, - )); - - return 'captcha_qa.html'; - } - } - - /** - * API function - we just display a mockup so that the captcha doesn't need to be installed - */ - function get_demo_template() - { - global $config, $db, $template; - - if ($this->is_available()) - { - $sql = 'SELECT question_text - FROM ' . CAPTCHA_QUESTIONS_TABLE . " - WHERE lang_iso = '" . $db->sql_escape($config['default_lang']) . "'"; - $result = $db->sql_query_limit($sql, 1); - if ($row = $db->sql_fetchrow($result)) - { - $template->assign_vars(array( - 'QA_CONFIRM_QUESTION' => $row['question_text'], - )); - } - $db->sql_freeresult($result); - } - return 'captcha_qa_acp_demo.html'; - } - - /** - * API function - */ - function get_hidden_fields() - { - $hidden_fields = array(); - - // this is required - otherwise we would forget about the captcha being already solved - if ($this->solved) - { - $hidden_fields['qa_answer'] = $this->answer; - } - $hidden_fields['qa_confirm_id'] = $this->confirm_id; - - return $hidden_fields; - } - - /** - * API function - */ - function garbage_collect($type = 0) - { - global $db, $config; - - $sql = 'SELECT c.confirm_id - FROM ' . CAPTCHA_QA_CONFIRM_TABLE . ' c - LEFT JOIN ' . SESSIONS_TABLE . ' s - ON (c.session_id = s.session_id) - WHERE s.session_id IS NULL' . - ((empty($type)) ? '' : ' AND c.confirm_type = ' . (int) $type); - $result = $db->sql_query($sql); - - if ($row = $db->sql_fetchrow($result)) - { - $sql_in = array(); - - do - { - $sql_in[] = (string) $row['confirm_id']; - } - while ($row = $db->sql_fetchrow($result)); - - if (sizeof($sql_in)) - { - $sql = 'DELETE FROM ' . CAPTCHA_QA_CONFIRM_TABLE . ' - WHERE ' . $db->sql_in_set('confirm_id', $sql_in); - $db->sql_query($sql); - } - } - $db->sql_freeresult($result); - } - - /** - * API function - we don't drop the tables here, as that would cause the loss of all entered questions. - */ - function uninstall() - { - $this->garbage_collect(0); - } - - /** - * API function - set up shop - */ - function install() - { - global $db, $phpbb_root_path, $phpEx; - - if (!class_exists('phpbb_db_tools')) - { - include("$phpbb_root_path/includes/db/db_tools.$phpEx"); - } - $db_tool = new phpbb_db_tools($db); - - $tables = array(CAPTCHA_QUESTIONS_TABLE, CAPTCHA_ANSWERS_TABLE, CAPTCHA_QA_CONFIRM_TABLE); - - $schemas = array( - CAPTCHA_QUESTIONS_TABLE => array ( - 'COLUMNS' => array( - 'question_id' => array('UINT', Null, 'auto_increment'), - 'strict' => array('BOOL', 0), - 'lang_id' => array('UINT', 0), - 'lang_iso' => array('VCHAR:30', ''), - 'question_text' => array('TEXT_UNI', ''), - ), - 'PRIMARY_KEY' => 'question_id', - 'KEYS' => array( - 'lang' => array('INDEX', 'lang_iso'), - ), - ), - CAPTCHA_ANSWERS_TABLE => array ( - 'COLUMNS' => array( - 'question_id' => array('UINT', 0), - 'answer_text' => array('STEXT_UNI', ''), - ), - 'KEYS' => array( - 'qid' => array('INDEX', 'question_id'), - ), - ), - CAPTCHA_QA_CONFIRM_TABLE => array ( - 'COLUMNS' => array( - 'session_id' => array('CHAR:32', ''), - 'confirm_id' => array('CHAR:32', ''), - 'lang_iso' => array('VCHAR:30', ''), - 'question_id' => array('UINT', 0), - 'attempts' => array('UINT', 0), - 'confirm_type' => array('USINT', 0), - ), - 'KEYS' => array( - 'session_id' => array('INDEX', 'session_id'), - 'lookup' => array('INDEX', array('confirm_id', 'session_id', 'lang_iso')), - ), - 'PRIMARY_KEY' => 'confirm_id', - ), - ); - - foreach($schemas as $table => $schema) - { - if (!$db_tool->sql_table_exists($table)) - { - $db_tool->sql_create_table($table, $schema); - } - } - } - - /** - * API function - see what has to be done to validate - */ - function validate() - { - global $config, $db, $user; - - $error = ''; - - if (!sizeof($this->question_ids)) - { - return false; - } - - if (!$this->confirm_id) - { - $error = $user->lang['CONFIRM_QUESTION_WRONG']; - } - else - { - if ($this->check_answer()) - { - // $this->delete_code(); commented out to allow posting.php to repeat the question - $this->solved = true; - } - else - { - $error = $user->lang['CONFIRM_QUESTION_WRONG']; - } - } - - if (strlen($error)) - { - // okay, incorrect answer. Let's ask a new question. - $this->new_attempt(); - $this->solved = false; - - return $error; - } - else - { - return false; - } - } - - /** - * Select a question - */ - function select_question() - { - global $db, $user; - - if (!sizeof($this->question_ids)) - { - return false; - } - $this->confirm_id = md5(unique_id($user->ip)); - $this->question = (int) array_rand($this->question_ids); - - $sql = 'INSERT INTO ' . CAPTCHA_QA_CONFIRM_TABLE . ' ' . $db->sql_build_array('INSERT', array( - 'confirm_id' => (string) $this->confirm_id, - 'session_id' => (string) $user->session_id, - 'lang_iso' => (string) $this->question_lang, - 'confirm_type' => (int) $this->type, - 'question_id' => (int) $this->question, - )); - $db->sql_query($sql); - - $this->load_answer(); - } - - /** - * New Question, if desired. - */ - function reselect_question() - { - global $db, $user; - - if (!sizeof($this->question_ids)) - { - return false; - } - - $this->question = (int) array_rand($this->question_ids); - $this->solved = 0; - - $sql = 'UPDATE ' . CAPTCHA_QA_CONFIRM_TABLE . ' - SET question_id = ' . (int) $this->question . " - WHERE confirm_id = '" . $db->sql_escape($this->confirm_id) . "' - AND session_id = '" . $db->sql_escape($user->session_id) . "'"; - $db->sql_query($sql); - - $this->load_answer(); - } - - /** - * Wrong answer, so we increase the attempts and use a different question. - */ - function new_attempt() - { - global $db, $user; - - // yah, I would prefer a stronger rand, but this should work - $this->question = (int) array_rand($this->question_ids); - $this->solved = 0; - - $sql = 'UPDATE ' . CAPTCHA_QA_CONFIRM_TABLE . ' - SET question_id = ' . (int) $this->question . ", - attempts = attempts + 1 - WHERE confirm_id = '" . $db->sql_escape($this->confirm_id) . "' - AND session_id = '" . $db->sql_escape($user->session_id) . "'"; - $db->sql_query($sql); - - $this->load_answer(); - } - - - /** - * See if there is already an entry for the current session. - */ - function load_confirm_id() - { - global $db, $user; - - $sql = 'SELECT confirm_id - FROM ' . CAPTCHA_QA_CONFIRM_TABLE . " - WHERE - session_id = '" . $db->sql_escape($user->session_id) . "' - AND lang_iso = '" . $db->sql_escape($this->question_lang) . "' - AND confirm_type = " . $this->type; - $result = $db->sql_query_limit($sql, 1); - $row = $db->sql_fetchrow($result); - $db->sql_freeresult($result); - - if ($row) - { - $this->confirm_id = $row['confirm_id']; - return true; - } - return false; - } - - /** - * Look up everything we need and populate the instance variables. - */ - function load_answer() - { - global $db, $user; - - if (!strlen($this->confirm_id) || !sizeof($this->question_ids)) - { - return false; - } - - $sql = 'SELECT con.question_id, attempts, question_text, strict - FROM ' . CAPTCHA_QA_CONFIRM_TABLE . ' con, ' . CAPTCHA_QUESTIONS_TABLE . " qes - WHERE con.question_id = qes.question_id - AND confirm_id = '" . $db->sql_escape($this->confirm_id) . "' - AND session_id = '" . $db->sql_escape($user->session_id) . "' - AND qes.lang_iso = '" . $db->sql_escape($this->question_lang) . "' - AND confirm_type = " . $this->type; - $result = $db->sql_query($sql); - $row = $db->sql_fetchrow($result); - $db->sql_freeresult($result); - - if ($row) - { - $this->question = $row['question_id']; - - $this->attempts = $row['attempts']; - $this->question_strict = $row['strict']; - $this->question_text = $row['question_text']; - - return true; - } - - return false; - } - - /** - * The actual validation - */ - function check_answer() - { - global $db; - - $answer = ($this->question_strict) ? utf8_normalize_nfc(request_var('qa_answer', '', true)) : utf8_clean_string(utf8_normalize_nfc(request_var('qa_answer', '', true))); - - $sql = 'SELECT answer_text - FROM ' . CAPTCHA_ANSWERS_TABLE . ' - WHERE question_id = ' . (int) $this->question; - $result = $db->sql_query($sql); - - while ($row = $db->sql_fetchrow($result)) - { - $solution = ($this->question_strict) ? $row['answer_text'] : utf8_clean_string($row['answer_text']); - - if ($solution === $answer) - { - $this->solved = true; - - break; - } - } - $db->sql_freeresult($result); - - return $this->solved; - } - - /** - * API function - clean the entry - */ - function delete_code() - { - global $db, $user; - - $sql = 'DELETE FROM ' . CAPTCHA_QA_CONFIRM_TABLE . " - WHERE confirm_id = '" . $db->sql_escape($confirm_id) . "' - AND session_id = '" . $db->sql_escape($user->session_id) . "' - AND confirm_type = " . $this->type; - $db->sql_query($sql); - } - - /** - * API function - */ - function get_attempt_count() - { - return $this->attempts; - } - - /** - * API function - */ - function reset() - { - global $db, $user; - - $sql = 'DELETE FROM ' . CAPTCHA_QA_CONFIRM_TABLE . " - WHERE session_id = '" . $db->sql_escape($user->session_id) . "' - AND confirm_type = " . (int) $this->type; - $db->sql_query($sql); - - // we leave the class usable by generating a new question - $this->select_question(); - } - - /** - * API function - */ - function is_solved() - { - if (request_var('qa_answer', false) && $this->solved === 0) - { - $this->validate(); - } - - return (bool) $this->solved; - } - - /** - * API function - The ACP backend, this marks the end of the easy methods - */ - function acp_page($id, &$module) - { - global $db, $user, $auth, $template; - global $config, $phpbb_root_path, $phpbb_admin_path, $phpEx; - - $user->add_lang('acp/board'); - $user->add_lang('captcha_qa'); - - if (!$this->is_installed()) - { - $this->install(); - } - - $module->tpl_name = 'captcha_qa_acp'; - $module->page_title = 'ACP_VC_SETTINGS'; - $form_key = 'acp_captcha'; - add_form_key($form_key); - - $submit = request_var('submit', false); - $question_id = request_var('question_id', 0); - $action = request_var('action', ''); - - // we have two pages, so users might want to navigate from one to the other - $list_url = $module->u_action . "&configure=1&select_captcha=" . $this->get_class_name(); - - $template->assign_vars(array( - 'U_ACTION' => $module->u_action, - 'QUESTION_ID' => $question_id , - 'CLASS' => $this->get_class_name(), - )); - - // show the list? - if (!$question_id && $action != 'add') - { - $this->acp_question_list($module); - } - else if ($question_id && $action == 'delete') - { - if ($this->get_class_name() !== $config['captcha_plugin'] || !$this->acp_is_last($question_id)) - { - if (confirm_box(true)) - { - $this->acp_delete_question($question_id); - - trigger_error($user->lang['QUESTION_DELETED'] . adm_back_link($list_url)); - } - else - { - confirm_box(false, $user->lang['CONFIRM_OPERATION'], build_hidden_fields(array( - 'question_id' => $question_id, - 'action' => $action, - 'configure' => 1, - 'select_captcha' => $this->get_class_name(), - )) - ); - } - } - else - { - trigger_error($user->lang['QA_LAST_QUESTION'] . adm_back_link($list_url), E_USER_WARNING); - } - } - else - { - // okay, show the editor - $error = false; - $input_question = request_var('question_text', '', true); - $input_answers = request_var('answers', '', true); - $input_lang = request_var('lang_iso', '', true); - $input_strict = request_var('strict', false); - $langs = $this->get_languages(); - - foreach ($langs as $lang => $entry) - { - $template->assign_block_vars('langs', array( - 'ISO' => $lang, - 'NAME' => $entry['name'], - )); - } - - $template->assign_vars(array( - 'U_LIST' => $list_url, - )); - - if ($question_id) - { - if ($question = $this->acp_get_question_data($question_id)) - { - $answers = (isset($input_answers[$lang])) ? $input_answers[$lang] : implode("\n", $question['answers']); - - $template->assign_vars(array( - 'QUESTION_TEXT' => ($input_question) ? $input_question : $question['question_text'], - 'LANG_ISO' => ($input_lang) ? $input_lang : $question['lang_iso'], - 'STRICT' => (isset($_REQUEST['strict'])) ? $input_strict : $question['strict'], - 'ANSWERS' => $answers, - )); - } - else - { - trigger_error($user->lang['FORM_INVALID'] . adm_back_link($list_url)); - } - } - else - { - $template->assign_vars(array( - 'QUESTION_TEXT' => $input_question, - 'LANG_ISO' => $input_lang, - 'STRICT' => $input_strict, - 'ANSWERS' => $input_answers, - )); - } - - if ($submit && check_form_key($form_key)) - { - $data = $this->acp_get_question_input(); - - if (!$this->validate_input($data)) - { - $template->assign_vars(array( - 'S_ERROR' => true, - )); - } - else - { - if ($question_id) - { - $this->acp_update_question($data, $question_id); - } - else - { - $this->acp_add_question($data); - } - - add_log('admin', 'LOG_CONFIG_VISUAL'); - trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($list_url)); - } - } - else if ($submit) - { - trigger_error($user->lang['FORM_INVALID'] . adm_back_link($list_url), E_USER_WARNING); - } - } - } - - /** - * This handles the list overview - */ - function acp_question_list(&$module) - { - global $db, $template; - - $sql = 'SELECT * - FROM ' . CAPTCHA_QUESTIONS_TABLE; - $result = $db->sql_query($sql); - - $template->assign_vars(array( - 'S_LIST' => true, - )); - - while ($row = $db->sql_fetchrow($result)) - { - $url = $module->u_action . "&question_id={$row['question_id']}&configure=1&select_captcha=" . $this->get_class_name() . '&'; - - $template->assign_block_vars('questions', array( - 'QUESTION_TEXT' => $row['question_text'], - 'QUESTION_ID' => $row['question_id'], - 'QUESTION_LANG' => $row['lang_iso'], - 'U_DELETE' => "{$url}action=delete", - 'U_EDIT' => "{$url}action=edit", - )); - } - $db->sql_freeresult($result); - } - - /** - * Grab a question and bring it into a format the editor understands - */ - function acp_get_question_data($question_id) - { - global $db; - - if ($question_id) - { - $sql = 'SELECT * - FROM ' . CAPTCHA_QUESTIONS_TABLE . ' - WHERE question_id = ' . $question_id; - $result = $db->sql_query($sql); - $question = $db->sql_fetchrow($result); - $db->sql_freeresult($result); - - if (!$question) - { - return false; - } - - $question['answers'] = array(); - - $sql = 'SELECT * - FROM ' . CAPTCHA_ANSWERS_TABLE . ' - WHERE question_id = ' . $question_id; - $result = $db->sql_query($sql); - - while ($row = $db->sql_fetchrow($result)) - { - $question['answers'][] = $row['answer_text']; - } - $db->sql_freeresult($result); - - return $question; - } - } - - /** - * Grab a question from input and bring it into a format the editor understands - */ - function acp_get_question_input() - { - $answers = utf8_normalize_nfc(request_var('answers', '', true)); - $question = array( - 'question_text' => request_var('question_text', '', true), - 'strict' => request_var('strict', false), - 'lang_iso' => request_var('lang_iso', ''), - 'answers' => (strlen($answers)) ? explode("\n", $answers) : '', - ); - - return $question; - } - - /** - * Update a question. - * param mixed $data : an array as created from acp_get_question_input or acp_get_question_data - */ - function acp_update_question($data, $question_id) - { - global $db, $cache; - - // easier to delete all answers than to figure out which to update - $sql = 'DELETE FROM ' . CAPTCHA_ANSWERS_TABLE . " WHERE question_id = $question_id"; - $db->sql_query($sql); - - $langs = $this->get_languages(); - $question_ary = $data; - $question_ary['lang_id'] = $langs[$question_ary['lang_iso']]['id']; - unset($question_ary['answers']); - - $sql = 'UPDATE ' . CAPTCHA_QUESTIONS_TABLE . ' - SET ' . $db->sql_build_array('UPDATE', $question_ary) . " - WHERE question_id = $question_id"; - $db->sql_query($sql); - - $this->acp_insert_answers($data, $question_id); - - $cache->destroy('sql', CAPTCHA_QUESTIONS_TABLE); - } - - /** - * Insert a question. - * param mixed $data : an array as created from acp_get_question_input or acp_get_question_data - */ - function acp_add_question($data) - { - global $db, $cache; - - $langs = $this->get_languages(); - $question_ary = $data; - - $question_ary['lang_id'] = $langs[$data['lang_iso']]['id']; - unset($question_ary['answers']); - - $sql = 'INSERT INTO ' . CAPTCHA_QUESTIONS_TABLE . ' ' . $db->sql_build_array('INSERT', $question_ary); - $db->sql_query($sql); - - $question_id = $db->sql_nextid(); - - $this->acp_insert_answers($data, $question_id); - - $cache->destroy('sql', CAPTCHA_QUESTIONS_TABLE); - } - - /** - * Insert the answers. - * param mixed $data : an array as created from acp_get_question_input or acp_get_question_data - */ - function acp_insert_answers($data, $question_id) - { - global $db, $cache; - - foreach ($data['answers'] as $answer) - { - $answer_ary = array( - 'question_id' => $question_id, - 'answer_text' => $answer, - ); - - $sql = 'INSERT INTO ' . CAPTCHA_ANSWERS_TABLE . ' ' . $db->sql_build_array('INSERT', $answer_ary); - $db->sql_query($sql); - } - - $cache->destroy('sql', CAPTCHA_ANSWERS_TABLE); - } - - /** - * Delete a question. - */ - function acp_delete_question($question_id) - { - global $db, $cache; - - $tables = array(CAPTCHA_QUESTIONS_TABLE, CAPTCHA_ANSWERS_TABLE); - - foreach ($tables as $table) - { - $sql = "DELETE FROM $table - WHERE question_id = $question_id"; - $db->sql_query($sql); - } - - $cache->destroy('sql', $tables); - } - - /** - * Check if the entered data can be inserted/used - * param mixed $data : an array as created from acp_get_question_input or acp_get_question_data - */ - function validate_input($question_data) - { - $langs = $this->get_languages(); - - if (!isset($question_data['lang_iso']) || - !isset($question_data['question_text']) || - !isset($question_data['strict']) || - !isset($question_data['answers'])) - { - return false; - } - - if (!isset($langs[$question_data['lang_iso']]) || - !strlen($question_data['question_text']) || - !sizeof($question_data['answers']) || - !is_array($question_data['answers'])) - { - return false; - } - - return true; - } - - /** - * List the installed language packs - */ - function get_languages() - { - global $db; - - $sql = 'SELECT * - FROM ' . LANG_TABLE; - $result = $db->sql_query($sql); - - $langs = array(); - while ($row = $db->sql_fetchrow($result)) - { - $langs[$row['lang_iso']] = array( - 'name' => $row['lang_local_name'], - 'id' => (int) $row['lang_id'], - ); - } - $db->sql_freeresult($result); - - return $langs; - } - - - - /** - * See if there is a question other than the one we have - */ - function acp_is_last($question_id) - { - global $config, $db; - - if ($question_id) - { - $sql = 'SELECT question_id - FROM ' . CAPTCHA_QUESTIONS_TABLE . " - WHERE lang_iso = '" . $db->sql_escape($config['default_lang']) . "' - AND question_id <> " . (int) $question_id; - $result = $db->sql_query_limit($sql, 1); - $question = $db->sql_fetchrow($result); - $db->sql_freeresult($result); - - if (!$question) - { - return true; - } - return false; - } - } -} - -?>
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