+++ /dev/null
-<?php
-/****************************************************************/
-/* ATutor */
-/****************************************************************/
-/* Copyright (c) 2002-2009 */
-/* Adaptive Technology Resource Centre / University of Toronto */
-/* http://atutor.ca */
-/* */
-/* This program is free software. You can redistribute it and/or*/
-/* modify it under the terms of the GNU General Public License */
-/* as published by the Free Software Foundation. */
-/****************************************************************/
-// $Id$
-
-/**
- * Convert all input to htmlentities output, in UTF-8.
- * @param string input to be convert
- * @param boolean true if we wish to change all carrier returns to a <br/> tag, false otherwise.
- * TODO: use htmlentities_utf8 in social when this become a standard module.
- */
-function htmlentities_utf82($str, $use_nl2br=true){
- $return = htmlentities($str, ENT_QUOTES, 'UTF-8');
- if ($use_nl2br){
- return nl2br($return);
- }
- return $return;
-}
-
-
-/**
- * Generate album path padding by using album_id + album_created_date
- */
-function getPhotoFilePath($id, $filename, $timestamp){
- $padding = hash('sha1', $id.$timestamp);
- $path_parts = pathinfo($filename);
- //return the hash if filename is empty.
- //this is used for validation purposes.
- if($filename==''){
- return $padding;
- }
-
- $extension = strtolower($path_parts['extension']);
- //Note: the padding might not be unique, but the path is ALWAYS unique
- // because the id is unique.
- return ($id.'_'.substr($padding, -5).'.'.$extension);
-}
-
-/**
- * Generate album path padding by using album_id + album_created_date
- */
-function getAlbumFilePath($id, $timestamp){
- $padding = hash('sha1', $id.$timestamp);
- //Note: the padding might not be unique, but the path is ALWAYS unique
- // because the id is unique.
- return ($id.'_'.substr($padding, -5));
-}
-
-/**
- * Check if the photo is supported, including extension check, file size check
- * and library support checks.
- * @param string location of the file.
- * @return $_FILE[] on successful, null on failure.
- */
-function checkPhoto($file){
- global $stripslashes;
- global $msg, $_config;
- $msg = new AjaxMessage();
-
- // check if GD is installed
- if (!extension_loaded('gd')) {
- $msg->printInfos('FEATURE_NOT_AVAILABLE');
- return false;
- }
-
- // check if folder exists, if not, create it
- if (!is_dir(AT_PA_CONTENT_DIR)) {
- mkdir(AT_PA_CONTENT_DIR);
- }
-
- //check GD support
- $gd_info = gd_info();
-
- $supported_images = array();
- if ($gd_info['GIF Create Support']) {
- $supported_images[] = 'gif';
- }
- if ($gd_info['JPG Support']) {
- $supported_images[] = 'jpg';
- }
- if ($gd_info['PNG Support']) {
- $supported_images[] = 'png';
- }
- if (!$supported_images) {
- $msg->printInfos('FEATURE_NOT_AVAILABLE');
- return false;
- }
-
- // check if this is a supported file type
- $filename = $stripslashes($file['name']);
- $path_parts = pathinfo($filename);
- $extension = strtolower($path_parts['extension']);
- $image_attributes = getimagesize($file['tmp_name']);
-
- //check Extension
- if ($extension == 'jpeg') {
- $extension = 'jpg';
- }
- if (!in_array($extension, $supported_images)) {
- $msg->addError(array('FILE_ILLEGAL', $extension));
- return false;
- } else if ($image_attributes[2] > IMAGETYPE_PNG) {
- $msg->addError(array('FILE_ILLEGAL', $extension));
- return false;
- }
-
- // make sure under max file size
- $allowed_usage = $_config['pa_max_memory_per_member'] * 1024 *1024; //mb
- if (memoryUsage($_SESSION['member_id']) > $allowed_usage){
- $msg->addError('PA_EXCEEDED_MAX_USAGE');
- return false;
- }
-
- //check filename
- $file['name'] = str_replace(array('\'', '"', ' ', '|', '\\', '/', '<', '>', ':'), '_' , $file['name'] );
- $file['name'] = preg_replace("/[^A-Za-z0-9._\-]/", '', $file['name'] );
- return $file;
-}
-
-
-/**
- * Return the total personal data usage (in bytes)
- */
-function memoryUsage($member_id){
- global $db;
- $member_id = intval($member_id);
- if ($member_id < 1){
- return false;
- }
-
- $memory_usage = 0;
- $sql = 'SELECT p.* FROM '.TABLE_PREFIX.'pa_photos p LEFT JOIN '.TABLE_PREFIX."pa_course_album ca ON p.album_id=ca.album_id WHERE member_id=$member_id AND ca.course_id IS NULL";
- $result = mysql_query($sql, $db);
- if ($result){
- while ($row=mysql_fetch_assoc($result)){
- $pa = new PhotoAlbum($row['album_id']);
- $album_info = $pa->getAlbumInfo();
- $photo_info = $pa->getPhotoInfo($row['id']);
- $album_file_path = getAlbumFilePath($album_info['id'], $album_info['created_date']);
- $photo_file_path = getPhotoFilePath($photo_info['id'], $photo_info['name'], $photo_info['created_date']);
- $file = AT_PA_CONTENT_DIR . $album_file_path . DIRECTORY_SEPARATOR . $photo_file_path;
- if (file_exists($file)){
- $memory_usage += filesize($file);
- }
- }
- }
- return $memory_usage;
-}
-?>
projects / atutor.git / blobdiff