Julio Montoya
12 years ago
parent
6a4477262c
commit
efc4ecaadf
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<?php |
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/* See license terms in /license.txt */ |
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/** |
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* This is the file display library for Dokeos. |
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* Include/require it in your code to use its functionality. |
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* |
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* @package chamilo.library |
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*/ |
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/** |
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* Code |
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*/ |
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/* GENERIC FUNCTIONS : FOR OLDER PHP VERSIONS */ |
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if ( ! function_exists('array_search') ) { |
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/** |
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* Searches haystack for needle and returns the key |
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* if it is found in the array, FALSE otherwise. |
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* |
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* Natively implemented in PHP since 4.0.5 version. |
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* This function is intended for previous version. |
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* |
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be> |
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* @param - needle (mixed) |
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* @param - haystack (array) |
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* @return - array key or FALSE |
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* |
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* @see - http://www.php.net/array_search |
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*/ |
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function array_search($needle, $haystack) |
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{ |
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while (list($key, $val) = each($haystack)) |
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if ($val == $needle) |
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return $key; |
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return false; |
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} |
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} |
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|
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/* FILE DISPLAY FUNCTIONS */ |
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/** |
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* Define the image to display for each file extension. |
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* This needs an existing image repository to work. |
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* |
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be> |
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* @param - $file_name (string) - Name of a file |
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* @return - The gif image to chose |
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*/ |
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function choose_image($file_name) |
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{ |
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static $type, $image; |
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|
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/* TABLES INITIALISATION */ |
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if (!$type || !$image) |
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{ |
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$type['word' ] = array('doc', 'dot', 'rtf', 'mcw', 'wps', 'psw', 'docm', 'docx', 'dotm', 'dotx'); |
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$type['web' ] = array('htm', 'html', 'htx', 'xml', 'xsl', 'php', 'xhtml'); |
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$type['image' ] = array('gif', 'jpg', 'png', 'bmp', 'jpeg', 'tif', 'tiff'); |
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$type['image_vect'] = array('svg','svgz'); |
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$type['audio' ] = array('wav', 'mid', 'mp2', 'mp3', 'midi', 'sib', 'amr', 'kar', 'oga','au','wma'); |
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$type['video' ] = array('mp4', 'mov', 'rm', 'pls', 'mpg', 'mpeg', 'm2v', 'm4v', 'flv', 'f4v', 'avi', 'wmv', 'asf', '3gp','ogv','ogg','ogx','webm'); |
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$type['excel' ] = array('xls', 'xlt', 'xls', 'xlt', 'pxl', 'xlsx', 'xlsm', 'xlam', 'xlsb', 'xltm', 'xltx'); |
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$type['compressed'] = array('zip', 'tar', 'rar', 'gz'); |
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$type['code' ] = array('js', 'cpp', 'c', 'java', 'phps', 'jsp', 'asp', 'aspx', 'cfm'); |
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$type['acrobat' ] = array('pdf'); |
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$type['powerpoint'] = array('ppt', 'pps', 'pptm', 'pptx', 'potm', 'potx', 'ppam', 'ppsm', 'ppsx'); |
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$type['flash' ] = array('fla', 'swf'); |
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$type['text' ] = array('txt','log'); |
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$type['oo_writer' ] = array('odt', 'ott', 'sxw', 'stw'); |
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$type['oo_calc' ] = array('ods', 'ots', 'sxc', 'stc'); |
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$type['oo_impress'] = array('odp', 'otp', 'sxi', 'sti'); |
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$type['oo_draw' ] = array('odg', 'otg', 'sxd', 'std'); |
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$type['epub' ] = array('epub'); |
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$type['java' ] = array('class','jar'); |
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$type['freemind' ] = array('mm'); |
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|
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$image['word' ] = 'word.gif'; |
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$image['web' ] = 'file_html.gif'; |
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$image['image' ] = 'file_image.gif'; |
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$image['image_vect'] = 'file_svg.png'; |
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$image['audio' ] = 'file_sound.gif'; |
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$image['video' ] = 'film.gif'; |
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$image['excel' ] = 'excel.gif'; |
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$image['compressed'] = 'file_zip.gif'; |
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$image['code' ] = 'icons/22/mime_code.png'; |
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$image['acrobat' ] = 'file_pdf.gif'; |
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$image['powerpoint'] = 'powerpoint.gif'; |
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$image['flash' ] = 'file_flash.gif'; |
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$image['text' ] = 'icons/22/mime_text.png'; |
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$image['oo_writer' ] = 'file_oo_writer.gif'; |
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$image['oo_calc' ] = 'file_oo_calc.gif'; |
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$image['oo_impress'] = 'file_oo_impress.gif'; |
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$image['oo_draw' ] = 'file_oo_draw.gif'; |
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$image['epub' ] = 'file_epub.gif'; |
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$image['java' ] = 'file_java.png'; |
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$image['freemind' ] = 'file_freemind.png'; |
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} |
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|
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/* FUNCTION CORE */ |
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$extension = array(); |
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if (!is_array($file_name)) { |
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if (preg_match('/\.([[:alnum:]]+)(\?|$)/', $file_name, $extension)) { |
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$extension[1] = strtolower($extension[1]); |
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|
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foreach ($type as $generic_type => $extension_list) |
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{ |
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if (in_array($extension[1], $extension_list)) |
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{ |
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return $image[$generic_type]; |
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} |
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} |
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} |
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} |
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return 'defaut.gif'; |
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} |
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|
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|
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/** |
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* Transform a UNIX time stamp in human readable format date. |
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* |
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be> |
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* @param - $date - UNIX time stamp |
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* @return - A human readable representation of the UNIX date |
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*/ |
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function format_date($date) |
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{ |
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return date('d.m.Y', $date); |
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} |
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|
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/** |
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* Transform the file path to a URL. |
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* |
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* @param - $file_path (string) - Relative local path of the file on the hard disk |
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* @return - Relative url |
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*/ |
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function format_url($file_path) |
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{ |
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$path_component = explode('/', $file_path); |
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|
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$path_component = array_map('rawurlencode', $path_component); |
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|
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return implode('/', $path_component); |
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} |
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|
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/** |
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* Get the most recent time the content of a folder was changed. |
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* |
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* @param - $dir_name (string) - Path of the dir on the hard disk |
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* @param - $do_recursive (bool) - Traverse all folders in the folder? |
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* @return - Time the content of the folder was changed |
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*/ |
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function recent_modified_file_time($dir_name, $do_recursive = true) |
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{ |
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|
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$dir = dir($dir_name); |
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$last_modified = 0; |
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$return = 0; |
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if (is_dir($dir)) { |
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while(($entry = $dir->read()) !== false) |
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{ |
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if ($entry != '.' && $entry != '..') |
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continue; |
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|
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if (!is_dir($dir_name.'/'.$entry)) |
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$current_modified = filemtime($dir_name.'/'.$entry); |
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elseif ($do_recursive) |
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$current_modified = recent_modified_file_time($dir_name.'/'.$entry, true); |
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|
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if ($current_modified > $last_modified) |
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$last_modified = $current_modified; |
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} |
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|
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$dir->close(); |
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//prevents returning 0 (for empty directories) |
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$return = ($last_modified == 0) ? filemtime($dir_name) : $last_modified; |
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} |
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return $return; |
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} |
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|
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/** |
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* Get the total size of a directory. |
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* |
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* @param - $dir_name (string) - Path of the dir on the hard disk |
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* @return - Total size in bytes |
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*/ |
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function folder_size($dir_name) |
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{ |
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$size = 0; |
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|
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if ($dir_handle = opendir($dir_name)) |
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{ |
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while (($entry = readdir($dir_handle)) !== false) |
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{ |
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if($entry == '.' || $entry == '..') |
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continue; |
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|
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if(is_dir($dir_name.'/'.$entry)) |
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$size += folder_size($dir_name.'/'.$entry); |
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else |
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$size += filesize($dir_name.'/'.$entry); |
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} |
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|
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closedir($dir_handle); |
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} |
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|
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return $size; |
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} |
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|
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/** |
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* Calculates the total size of a directory by adding the sizes (that |
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* are stored in the database) of all files & folders in this directory. |
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* |
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* @param string $path |
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* @param boolean $can_see_invisible |
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* @return Total size |
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*/ |
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function get_total_folder_size($path, $can_see_invisible = false) { |
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$table_itemproperty = Database::get_course_table(TABLE_ITEM_PROPERTY); |
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$table_document = Database::get_course_table(TABLE_DOCUMENT); |
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$tool_document = TOOL_DOCUMENT; |
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|
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$course_id = api_get_course_int_id(); |
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$session_id = api_get_session_id(); |
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$session_condition = api_get_session_condition($session_id, true, true, 'props.id_session'); |
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|
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$visibility_rule = ' props.visibility ' . ($can_see_invisible ? '<> 2' : '= 1'); |
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|
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$sql = "SELECT SUM(table1.size) FROM ( |
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SELECT size FROM $table_itemproperty AS props, $table_document AS docs |
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WHERE docs.c_id = $course_id AND |
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docs.id = props.ref AND |
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docs.path LIKE '$path/%' AND |
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props.c_id = $course_id AND |
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props.tool = '$tool_document' AND |
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$visibility_rule |
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$session_condition |
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GROUP BY ref |
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) as table1"; |
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|
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$result = Database::query($sql); |
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if ($result && Database::num_rows($result) != 0) { |
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$row = Database::fetch_row($result); |
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return $row[0] == null ? 0 : $row[0]; |
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} else { |
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return 0; |
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} |
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} |
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