* @version $Id: $ * * small peace code to enable user to access images included into survey * which are accessible by non authenticated users. This file is included * by document/download.php */ function check_download_survey($course, $invitation, $doc_url) { require_once('survey.lib.php'); require_once (api_get_path(LIBRARY_PATH)."/course.lib.php"); // getting all the course information $_course = CourseManager::get_course_information($course); // Database table definitions $table_survey = Database :: get_course_table(TABLE_SURVEY, $_course['db_name']); $table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION, $_course['db_name']); $table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION, $_course['db_name']); $table_course = Database :: get_main_table(TABLE_MAIN_COURSE); $table_user = Database :: get_main_table(TABLE_MAIN_USER); $table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION, $_course['db_name']); // now we check if the invitationcode is valid $sql = "SELECT * FROM $table_survey_invitation WHERE invitation_code = '".Database::escape_string($invitation)."'"; $result = Database::query($sql, __FILE__, __LINE__); if (Database::num_rows($result) < 1) { Display :: display_error_message(get_lang('WrongInvitationCode'), false); Display :: display_footer(); exit; } $survey_invitation = mysql_fetch_assoc($result); // now we check if the user already filled the survey if ($survey_invitation['answered'] == 1) { Display :: display_error_message(get_lang('YouAlreadyFilledThisSurvey'), false); Display :: display_footer(); exit; } // very basic security check: check if a text field from a survey/answer/option contains the name of the document requested ////////////// // fetch survey ID ////////////// // If this is the case there will be a language choice $sql = "SELECT * FROM $table_survey WHERE code='".Database::escape_string($survey_invitation['survey_code'])."'"; $result = Database::query($sql, __FILE__, __LINE__); if (Database::num_rows($result) > 1) { if ($_POST['language']) { $survey_invitation['survey_id'] = $_POST['language']; } else { echo '

'; echo ' '; while ($row=mysql_fetch_assoc($result)) { echo ''.$row['lang'].''; } echo ''; echo ' '; echo '

'; display::display_footer(); exit; } } else { $row=mysql_fetch_assoc($result); $survey_invitation['survey_id'] = $row['survey_id']; } $sql = "select count(*) from $table_survey where survey_id = ".$survey_invitation['survey_id']." and ( title LIKE '%$doc_url%' or subtitle LIKE '%$doc_url%' or intro LIKE '%$doc_url%' or surveythanks LIKE '%$doc_url%' ) union select count(*) from $table_survey_question where survey_id = ".$survey_invitation['survey_id']." and ( survey_question LIKE '%$doc_url%' or survey_question_comment LIKE '%$doc_url%' ) union select count(*) from $table_survey_question_option where survey_id = ".$survey_invitation['survey_id']." and ( option_text LIKE '%$doc_url%' )"; $result = Database::query($sql, __FILE__, __LINE__); if (Database::num_rows($result) == 0) { Display :: display_error_message(get_lang('WrongInvitationCode'), false); Display :: display_footer(); exit; } return $_course; } ?>