lib/filelib.php

   1 <?php //$Id: filelib.php,v 1.15 2005/09/19 17:13:06 skodak Exp $
   2
   3 function mimeinfo($element, $filename) {
   4     $mimeinfo = array (
   5         'xxx'  => array ('type'=>'document/unknown', 'icon'=>'unknown.gif'),
   6         '3gp'  => array ('type'=>'video/quicktime', 'icon'=>'video.gif'),
   7         'ai'   => array ('type'=>'application/postscript', 'icon'=>'image.gif'),
   8         'aif'  => array ('type'=>'audio/x-aiff', 'icon'=>'audio.gif'),
   9         'aiff' => array ('type'=>'audio/x-aiff', 'icon'=>'audio.gif'),
  10         'aifc' => array ('type'=>'audio/x-aiff', 'icon'=>'audio.gif'),
  11         'applescript'  => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  12         'asc'  => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  13         'asm'  => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  14         'au'   => array ('type'=>'audio/au', 'icon'=>'audio.gif'),
  15         'avi'  => array ('type'=>'video/x-ms-wm', 'icon'=>'avi.gif'),
  16         'bmp'  => array ('type'=>'image/bmp', 'icon'=>'image.gif'),
  17         'c'    => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  18         'cct'  => array ('type'=>'shockwave/director', 'icon'=>'flash.gif'),
  19         'cpp'  => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  20         'cs'   => array ('type'=>'application/x-csh', 'icon'=>'text.gif'),
  21         'css'  => array ('type'=>'text/css', 'icon'=>'text.gif'),
  22         'dv'   => array ('type'=>'video/x-dv', 'icon'=>'video.gif'),
  23         'dmg'  => array ('type'=>'application/octet-stream', 'icon'=>'dmg.gif'),
  24         'doc'  => array ('type'=>'application/msword', 'icon'=>'word.gif'),
  25         'dcr'  => array ('type'=>'application/x-director', 'icon'=>'flash.gif'),
  26         'dif'  => array ('type'=>'video/x-dv', 'icon'=>'video.gif'),
  27         'dir'  => array ('type'=>'application/x-director', 'icon'=>'flash.gif'),
  28         'dxr'  => array ('type'=>'application/x-director', 'icon'=>'flash.gif'),
  29         'eps'  => array ('type'=>'application/postscript', 'icon'=>'pdf.gif'),
  30         'gif'  => array ('type'=>'image/gif', 'icon'=>'image.gif'),
  31         'gtar' => array ('type'=>'application/x-gtar', 'icon'=>'zip.gif'),
  32         'tgz'   => array ('type'=>'application/g-zip', 'icon'=>'zip.gif'),
  33         'gz'   => array ('type'=>'application/g-zip', 'icon'=>'zip.gif'),
  34         'gzip' => array ('type'=>'application/g-zip', 'icon'=>'zip.gif'),
  35         'h'    => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  36         'hpp'  => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  37         'hqx'  => array ('type'=>'application/mac-binhex40', 'icon'=>'zip.gif'),
  38         'html' => array ('type'=>'text/html', 'icon'=>'html.gif'),
  39         'htm'  => array ('type'=>'text/html', 'icon'=>'html.gif'),
  40         'java' => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  41         'jcb'  => array ('type'=>'text/xml', 'icon'=>'jcb.gif'),
  42         'jcl'  => array ('type'=>'text/xml', 'icon'=>'jcl.gif'),
  43         'jcw'  => array ('type'=>'text/xml', 'icon'=>'jcw.gif'),
  44         'jmt'  => array ('type'=>'text/xml', 'icon'=>'jmt.gif'),
  45         'jmx'  => array ('type'=>'text/xml', 'icon'=>'jmx.gif'),
  46         'jpe'  => array ('type'=>'image/jpeg', 'icon'=>'image.gif'),
  47         'jpeg' => array ('type'=>'image/jpeg', 'icon'=>'image.gif'),
  48         'jpg'  => array ('type'=>'image/jpeg', 'icon'=>'image.gif'),
  49         'jqz'  => array ('type'=>'text/xml', 'icon'=>'jqz.gif'),
  50         'js'   => array ('type'=>'application/x-javascript', 'icon'=>'text.gif'),
  51         'latex'=> array ('type'=>'application/x-latex', 'icon'=>'text.gif'),
  52         'm'    => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  53         'mov'  => array ('type'=>'video/quicktime', 'icon'=>'video.gif'),
  54         'movie'=> array ('type'=>'video/x-sgi-movie', 'icon'=>'video.gif'),
  55         'm3u'  => array ('type'=>'audio/x-mpegurl', 'icon'=>'audio.gif'),
  56         'mp3'  => array ('type'=>'audio/mp3', 'icon'=>'audio.gif'),
  57         'mp4'  => array ('type'=>'video/mp4', 'icon'=>'video.gif'),
  58         'mpeg' => array ('type'=>'video/mpeg', 'icon'=>'video.gif'),
  59         'mpe'  => array ('type'=>'video/mpeg', 'icon'=>'video.gif'),
  60         'mpg'  => array ('type'=>'video/mpeg', 'icon'=>'video.gif'),
  61
  62         'odt'  => array ('type'=>'application/vnd.oasis.opendocument.text', 'icon'=>'odt.gif'),
  63         'ott'  => array ('type'=>'application/vnd.oasis.opendocument.text-template', 'icon'=>'odt.gif'),
  64         'oth'  => array ('type'=>'application/vnd.oasis.opendocument.text-web', 'icon'=>'odt.gif'),
  65         'odm'  => array ('type'=>'application/vnd.oasis.opendocument.text-master', 'icon'=>'odt.gif'),
  66         'odg'  => array ('type'=>'application/vnd.oasis.opendocument.graphics', 'icon'=>'odt.gif'),
  67         'otg'  => array ('type'=>'application/vnd.oasis.opendocument.graphics-template', 'icon'=>'odt.gif'),
  68         'odp'  => array ('type'=>'application/vnd.oasis.opendocument.presentation', 'icon'=>'odt.gif'),
  69         'otp'  => array ('type'=>'application/vnd.oasis.opendocument.presentation-template', 'icon'=>'odt.gif'),
  70         'ods'  => array ('type'=>'application/vnd.oasis.opendocument.spreadsheet', 'icon'=>'odt.gif'),
  71         'ots'  => array ('type'=>'application/vnd.oasis.opendocument.spreadsheet-template', 'icon'=>'odt.gif'),
  72         'odc'  => array ('type'=>'application/vnd.oasis.opendocument.chart', 'icon'=>'odt.gif'),
  73         'odf'  => array ('type'=>'application/vnd.oasis.opendocument.formula', 'icon'=>'odt.gif'),
  74         'odb'  => array ('type'=>'application/vnd.oasis.opendocument.database', 'icon'=>'odt.gif'),
  75         'odi'  => array ('type'=>'application/vnd.oasis.opendocument.image', 'icon'=>'odt.gif'),
  76
  77         'pct'  => array ('type'=>'image/pict', 'icon'=>'image.gif'),
  78         'pdf'  => array ('type'=>'application/pdf', 'icon'=>'pdf.gif'),
  79         'php'  => array ('type'=>'text/plain', 'icon'=>'text.gif'),
  80         'pic'  => array ('type'=>'image/pict', 'icon'=>'image.gif'),
  81         'pict' => array ('type'=>'image/pict', 'icon'=>'image.gif'),
  82         'png'  => array ('type'=>'image/png', 'icon'=>'image.gif'),
  83         'pps'  => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'powerpoint.gif'),
  84         'ppt'  => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'powerpoint.gif'),
  85         'ps'   => array ('type'=>'application/postscript', 'icon'=>'pdf.gif'),
  86         'qt'   => array ('type'=>'video/quicktime', 'icon'=>'video.gif'),
  87         'ra'   => array ('type'=>'audio/x-realaudio', 'icon'=>'audio.gif'),
  88         'ram'  => array ('type'=>'audio/x-pn-realaudio', 'icon'=>'audio.gif'),
  89         'rhb'  => array ('type'=>'text/xml', 'icon'=>'xml.gif'),
  90         'rm'   => array ('type'=>'audio/x-pn-realaudio', 'icon'=>'audio.gif'),
  91         'rtf'  => array ('type'=>'text/rtf', 'icon'=>'text.gif'),
  92         'rtx'  => array ('type'=>'text/richtext', 'icon'=>'text.gif'),
  93         'sh'   => array ('type'=>'application/x-sh', 'icon'=>'text.gif'),
  94         'sit'  => array ('type'=>'application/x-stuffit', 'icon'=>'zip.gif'),
  95         'smi'  => array ('type'=>'application/smil', 'icon'=>'text.gif'),
  96         'smil' => array ('type'=>'application/smil', 'icon'=>'text.gif'),
  97         'sqt'  => array ('type'=>'text/xml', 'icon'=>'xml.gif'),
  98         'swa'  => array ('type'=>'application/x-director', 'icon'=>'flash.gif'),
  99         'swf'  => array ('type'=>'application/x-shockwave-flash', 'icon'=>'flash.gif'),
 100         'swfl' => array ('type'=>'application/x-shockwave-flash', 'icon'=>'flash.gif'),
 101
 102         'sxw'  => array ('type'=>'application/vnd.sun.xml.writer', 'icon'=>'odt.gif'),
 103         'stw'  => array ('type'=>'application/vnd.sun.xml.writer.template', 'icon'=>'odt.gif'),
 104         'sxc'  => array ('type'=>'application/vnd.sun.xml.calc', 'icon'=>'odt.gif'),
 105         'stc'  => array ('type'=>'application/vnd.sun.xml.calc.template', 'icon'=>'odt.gif'),
 106         'sxd'  => array ('type'=>'application/vnd.sun.xml.draw', 'icon'=>'odt.gif'),
 107         'std'  => array ('type'=>'application/vnd.sun.xml.draw.template', 'icon'=>'odt.gif'),
 108         'sxi'  => array ('type'=>'application/vnd.sun.xml.impress', 'icon'=>'odt.gif'),
 109         'sti'  => array ('type'=>'application/vnd.sun.xml.impress.template', 'icon'=>'odt.gif'),
 110         'sxg'  => array ('type'=>'application/vnd.sun.xml.writer.global', 'icon'=>'odt.gif'),
 111         'sxm'  => array ('type'=>'application/vnd.sun.xml.math', 'icon'=>'odt.gif'),
 112
 113         'tar'  => array ('type'=>'application/x-tar', 'icon'=>'zip.gif'),
 114         'tif'  => array ('type'=>'image/tiff', 'icon'=>'image.gif'),
 115         'tiff' => array ('type'=>'image/tiff', 'icon'=>'image.gif'),
 116         'tex'  => array ('type'=>'application/x-tex', 'icon'=>'text.gif'),
 117         'texi' => array ('type'=>'application/x-texinfo', 'icon'=>'text.gif'),
 118         'texinfo'  => array ('type'=>'application/x-texinfo', 'icon'=>'text.gif'),
 119         'tsv'  => array ('type'=>'text/tab-separated-values', 'icon'=>'text.gif'),
 120         'txt'  => array ('type'=>'text/plain', 'icon'=>'text.gif'),
 121         'wav'  => array ('type'=>'audio/wav', 'icon'=>'audio.gif'),
 122         'wmv'  => array ('type'=>'video/x-ms-wmv', 'icon'=>'avi.gif'),
 123         'asf'  => array ('type'=>'video/x-ms-asf', 'icon'=>'avi.gif'),
 124         'xls'  => array ('type'=>'application/vnd.ms-excel', 'icon'=>'excel.gif'),
 125         'xml'  => array ('type'=>'application/xml', 'icon'=>'xml.gif'),
 126         'xsl'  => array ('type'=>'text/xml', 'icon'=>'xml.gif'),
 127         'zip'  => array ('type'=>'application/zip', 'icon'=>'zip.gif'),
 128
 129         'asx'  => array ('type'=>'video/x-ms-asf', 'icon'=>'unknown.gif'),
 130         'bcpio' => array ('type'=>'application/x-bcpio', 'icon'=>'unknown.gif'),
 131         'cdf'  => array ('type'=>'application/x-netcdf', 'icon'=>'unknown.gif'),
 132         'cpio' => array ('type'=>'application/x-cpio', 'icon'=>'unknown.gif'),
 133         'cpt'  => array ('type'=>'application/mac-compactpro', 'icon'=>'unknown.gif'),
 134         'csh'  => array ('type'=>'application/x-csh', 'icon'=>'unknown.gif'),
 135         'dtd'  => array ('type'=>'text/xml', 'icon'=>'unknown.gif'),
 136         'dvi'  => array ('type'=>'application/x-dvi', 'icon'=>'unknown.gif'),
 137         'etx'  => array ('type'=>'text/x-setext', 'icon'=>'unknown.gif'),
 138         'evy'  => array ('type'=>'application/x-envoy', 'icon'=>'unknown.gif'),
 139         'fif'  => array ('type'=>'application/fractals', 'icon'=>'unknown.gif'),
 140         'hdf'  => array ('type'=>'application/x-hdf', 'icon'=>'unknown.gif'),
 141         'hpx'  => array ('type'=>'application/mac-binhex40', 'icon'=>'unknown.gif'),
 142         'ice'  => array ('type'=>'x-conference/x-cooltalk', 'icon'=>'unknown.gif'),
 143         'ief'  => array ('type'=>'image/ief', 'icon'=>'unknown.gif'),
 144         'iges' => array ('type'=>'model/iges', 'icon'=>'unknown.gif'),
 145         'igs'  => array ('type'=>'model/iges', 'icon'=>'unknown.gif'),
 146         'isv'  => array ('type'=>'bws-internal/intrasrv-urlencoded', 'icon'=>'unknown.gif'),
 147         'jfm'  => array ('type'=>'bws-internal/intrasrv-form', 'icon'=>'unknown.gif'),
 148         'jrp'  => array ('type'=>'bws-internal/intrasrv-report', 'icon'=>'unknown.gif'),
 149         'kar'  => array ('type'=>'audio/midi', 'icon'=>'unknown.gif'),
 150         'ls'   => array ('type'=>'application/x-javascript', 'icon'=>'unknown.gif'),
 151         'man'  => array ('type'=>'application/x-troff-man', 'icon'=>'unknown.gif'),
 152         'me'   => array ('type'=>'application/x-troff-me', 'icon'=>'unknown.gif'),
 153         'mesh' => array ('type'=>'model/mesh', 'icon'=>'unknown.gif'),
 154         'mid'  => array ('type'=>'audio/midi', 'icon'=>'unknown.gif'),
 155         'midi' => array ('type'=>'audio/midi', 'icon'=>'unknown.gif'),
 156         'mif'  => array ('type'=>'application/x-mif', 'icon'=>'unknown.gif'),
 157         'mocha' => array ('type'=>'application/x-javascript', 'icon'=>'unknown.gif'),
 158         'mp2'  => array ('type'=>'audio/mpeg', 'icon'=>'unknown.gif'),
 159         'mpga' => array ('type'=>'audio/mpeg', 'icon'=>'unknown.gif'),
 160         'ms'   => array ('type'=>'application/x-troff-ms', 'icon'=>'unknown.gif'),
 161         'msh'  => array ('type'=>'model/mesh', 'icon'=>'unknown.gif'),
 162         'nc'   => array ('type'=>'application/x-netcdf', 'icon'=>'unknown.gif'),
 163         'oda'  => array ('type'=>'application/oda', 'icon'=>'unknown.gif'),
 164         'pac'  => array ('type'=>'application/x-ns-proxy-autoconfig', 'icon'=>'unknown.gif'),
 165         'pbm'  => array ('type'=>'image/x-portable-bitmap', 'icon'=>'unknown.gif'),
 166         'pdb'  => array ('type'=>'chemical/x-pdb', 'icon'=>'unknown.gif'),
 167         'pgm'  => array ('type'=>'image/x-portable-graymap', 'icon'=>'unknown.gif'),
 168         'php3' => array ('type'=>'application/x-httpd-php3', 'icon'=>'unknown.gif'),
 169         'msql2' => array ('type'=>'application/x-httpd-php-msql2', 'icon'=>'unknown.gif'),
 170         'phtml' => array ('type'=>'application/x-httpd-php', 'icon'=>'unknown.gif'),
 171         'pnm'  => array ('type'=>'image/x-portable-anymap', 'icon'=>'unknown.gif'),
 172         'ppm'  => array ('type'=>'image/x-portable-pixmap', 'icon'=>'unknown.gif'),
 173         'ras'  => array ('type'=>'image/x-cmu-raster', 'icon'=>'unknown.gif'),
 174         'rgb'  => array ('type'=>'image/x-rgb', 'icon'=>'unknown.gif'),
 175         'roff' => array ('type'=>'application/x-troff', 'icon'=>'unknown.gif'),
 176         'rpm'  => array ('type'=>'audio/x-pn-realaudio-plugin', 'icon'=>'unknown.gif'),
 177         'sgm'  => array ('type'=>'text/x-sgml', 'icon'=>'unknown.gif'),
 178         'sgml' => array ('type'=>'text/x-sgml', 'icon'=>'unknown.gif'),
 179         'shar' => array ('type'=>'application/x-shar', 'icon'=>'unknown.gif'),
 180         'silo' => array ('type'=>'model/mesh', 'icon'=>'unknown.gif'),
 181         'skd'  => array ('type'=>'application/x-koan', 'icon'=>'unknown.gif'),
 182         'skm'  => array ('type'=>'application/x-koan', 'icon'=>'unknown.gif'),
 183         'skp'  => array ('type'=>'application/x-koan', 'icon'=>'unknown.gif'),
 184         'skt'  => array ('type'=>'application/x-koan', 'icon'=>'unknown.gif'),
 185         'snd'  => array ('type'=>'audio/basic', 'icon'=>'unknown.gif'),
 186         'src'  => array ('type'=>'application/x-wais-source', 'icon'=>'unknown.gif'),
 187         'sv4cpio' => array ('type'=>'application/x-sv4cpio', 'icon'=>'unknown.gif'),
 188         'sv4crc'=> array ('type'=>'application/x-sv4crc', 'icon'=>'unknown.gif'),
 189         't'    => array ('type'=>'application/x-troff', 'icon'=>'unknown.gif'),
 190         'tcl'  => array ('type'=>'application/x-tcl', 'icon'=>'unknown.gif'),
 191         'text' => array ('type'=>'text/plain', 'icon'=>'unknown.gif'),
 192         'tr'   => array ('type'=>'application/x-troff', 'icon'=>'unknown.gif'),
 193         'tsp'  => array ('type'=>'application/dsptype', 'icon'=>'unknown.gif'),
 194         'ustar' => array ('type'=>'application/x-ustar', 'icon'=>'unknown.gif'),
 195         'vcd'  => array ('type'=>'application/x-cdlink', 'icon'=>'unknown.gif'),
 196         'vox'  => array ('type'=>'audio/voxware', 'icon'=>'unknown.gif'),
 197         'vrml' => array ('type'=>'model/vrml', 'icon'=>'unknown.gif'),
 198         'wax'  => array ('type'=>'audio/x-ms-wax', 'icon'=>'unknown.gif'),
 199         'wm'   => array ('type'=>'video/x-ms-wm', 'icon'=>'unknown.gif'),
 200         'wma'  => array ('type'=>'audio/x-ms-wma', 'icon'=>'unknown.gif'),
 201         'wmd'  => array ('type'=>'application/x-ms-wmd', 'icon'=>'unknown.gif'),
 202         'wmx'  => array ('type'=>'video/x-ms-wmx', 'icon'=>'unknown.gif'),
 203         'wmz'  => array ('type'=>'application/x-ms-wmz', 'icon'=>'unknown.gif'),
 204         'wrl'  => array ('type'=>'model/vrml', 'icon'=>'unknown.gif'),
 205         'wvx'  => array ('type'=>'video/x-ms-wvx', 'icon'=>'unknown.gif'),
 206         'xbm'  => array ('type'=>'image/x-xbitmap', 'icon'=>'unknown.gif'),
 207         'xpm'  => array ('type'=>'image/x-xpixmap', 'icon'=>'unknown.gif'),
 208         'xwd'  => array ('type'=>'image/x-xwindowdump', 'icon'=>'unknown.gif'),
 209         'xyz'  => array ('type'=>'chemical/x-pdb', 'icon'=>'unknown.gif'),
 210         'z'    => array ('type'=>'application/x-compress', 'icon'=>'unknown.gif'),
 211     );
 212
 213     if (eregi('\.([a-z0-9]+)$', $filename, $match)) {
 214         if (isset($mimeinfo[strtolower($match[1])][$element])) {
 215             return $mimeinfo[strtolower($match[1])][$element];
 216         } else {
 217             return $mimeinfo['xxx'][$element];   // By default
 218         }
 219     } else {
 220         return $mimeinfo['xxx'][$element];   // By default
 221     }
 222 }
 223
 224 function send_file($path, $filename, $lifetime=86400 , $filter=false, $pathisstring=false,$forcedownload=false) {
 225     global $CFG;
 226
 227     $mimetype     = $forcedownload ? 'application/x-forcedownload' : mimeinfo('type', $filename);
 228     $lastmodified = $pathisstring ? time() : filemtime($path);
 229     $filesize     = $pathisstring ? strlen($path) : filesize($path);
 230
 231     //IE compatibiltiy HACK!
 232     if(ini_get('zlib.output_compression')) {
 233         ini_set('zlib.output_compression', 'Off');
 234     }
 235
 236     @header('Last-Modified: '. gmdate('D, d M Y H:i:s', $lastmodified) .' GMT');
 237     if ($lifetime > 0) {
 238         @header('Cache-control: max-age='.$lifetime);
 239         @header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .'GMT');
 240         @header('Pragma: ');
 241     } else {
 242         if (strpos($CFG->wwwroot, 'https://') === 0) { //https sites - watch out for IE! KB812935 and KB316431
 243             @header('Cache-Control: max-age=10');
 244             @header('Expires: '. gmdate('D, d M Y H:i:s', 0) .'GMT');
 245             @header('Pragma: ');
 246         } else { //normal http - prevent caching at all cost
 247             @header('Cache-Control: private, must-revalidate, pre-check=0, post-check=0, max-age=0');
 248             @header('Expires: '. gmdate('D, d M Y H:i:s', 0) .'GMT');
 249             @header('Pragma: no-cache');
 250         }
 251     }
 252     @header('Accept-Ranges: none'); // Comment out if PDFs do not work...
 253
 254     if ($forcedownload) {
 255         @header('Content-disposition: attachment; filename='.$filename);
 256     } else {
 257         @header('Content-disposition: inline; filename='.$filename);
 258     }
 259
 260     if (!$filter) {
 261         @header('Content-length: '.$filesize);
 262         if ($mimetype == 'text/plain') {
 263             @header('Content-type: text/plain; charset=utf-8'); //add encoding
 264         } else {
 265             @header('Content-type: '.$mimetype);
 266         }
 267         if ($pathisstring) {
 268             echo $path;
 269         }else {
 270             readfile_chunked($path);
 271         }
 272     } else {     // Try to put the file through filters
 273         global $course;  // HACK!
 274         if (!empty($course->id)) {
 275             $courseid = $course->id;
 276         } else {
 277             $courseid = SITEID;
 278         }
 279         if ($mimetype == 'text/html') {
 280             $options->noclean = true;
 281             $text = $pathisstring ? $path : implode('', file($path));
 282             $output = format_text($text, FORMAT_HTML, $options, $courseid);
 283
 284             @header('Content-length: '.strlen($output));
 285             @header('Content-type: text/html');
 286             echo $output;
 287         } else if ($mimetype == 'text/plain') {
 288             $options->newlines = false;
 289             $options->noclean = true;
 290             $text = htmlspecialchars($pathisstring ? $path : implode('', file($path)));
 291             $output = '<pre>'. format_text($text, FORMAT_MOODLE, $options, $courseid) .'</pre>';
 292
 293             @header('Content-length: '.strlen($output));
 294             @header('Content-type: text/html; charset=utf-8'); //add encoding
 295             echo $output;
 296         } else {    // Just send it out raw
 297             @header('Content-length: '.$filesize);
 298             @header('Content-type: '.$mimetype);
 299             if ($pathisstring) {
 300                 echo $path;
 301             }else {
 302                 readfile_chunked($path);
 303             }
 304         }
 305     }
 306     die; //no more chars to output!!!
 307 }
 308
 309 function get_records_csv($file, $table) {
 310     global $CFG, $db;
 311
 312     if (!$metacolumns = $db->MetaColumns($CFG->prefix . $table)) {
 313         return false;
 314     }
 315
 316     if(!($handle = @fopen($file, 'r'))) {
 317         error('get_records_csv failed to open '.$file);
 318     }
 319
 320     $fieldnames = fgetcsv($handle, 4096);
 321     if(empty($fieldnames)) {
 322         fclose($handle);
 323         return false;
 324     }
 325
 326     $columns = array();
 327
 328     foreach($metacolumns as $metacolumn) {
 329         $ord = array_search($metacolumn->name, $fieldnames);
 330         if(is_int($ord)) {
 331             $columns[$metacolumn->name] = $ord;
 332         }
 333     }
 334
 335     $rows = array();
 336
 337     while (($data = fgetcsv($handle, 4096)) !== false) {
 338         $item = new stdClass;
 339         foreach($columns as $name => $ord) {
 340             $item->$name = $data[$ord];
 341         }
 342         $rows[] = $item;
 343     }
 344
 345     fclose($handle);
 346     return $rows;
 347 }
 348
 349 function put_records_csv($file, $records, $table = NULL) {
 350     global $CFG, $db;
 351
 352     if (empty($records)) {
 353         return true;
 354     }
 355
 356     $metacolumns = NULL;
 357     if ($table !== NULL && !$metacolumns = $db->MetaColumns($CFG->prefix . $table)) {
 358         return false;
 359     }
 360
 361     echo "x";
 362
 363     if(!($fp = @fopen($CFG->dataroot.'/temp/'.$file, 'w'))) {
 364         error('put_records_csv failed to open '.$file);
 365     }
 366
 367     $proto = reset($records);
 368     if(is_object($proto)) {
 369         $fields_records = array_keys(get_object_vars($proto));
 370     }
 371     else if(is_array($proto)) {
 372         $fields_records = array_keys($proto);
 373     }
 374     else {
 375         return false;
 376     }
 377     echo "x";
 378
 379     if(!empty($metacolumns)) {
 380         $fields_table = array_map(create_function('$a', 'return $a->name;'), $metacolumns);
 381         $fields = array_intersect($fields_records, $fields_table);
 382     }
 383     else {
 384         $fields = $fields_records;
 385     }
 386
 387     fwrite($fp, implode(',', $fields));
 388     fwrite($fp, "\r\n");
 389
 390     foreach($records as $record) {
 391         $array  = (array)$record;
 392         $values = array();
 393         foreach($fields as $field) {
 394             if(strpos($array[$field], ',')) {
 395                 $values[] = '"'.str_replace('"', '\"', $array[$field]).'"';
 396             }
 397             else {
 398                 $values[] = $array[$field];
 399             }
 400         }
 401         fwrite($fp, implode(',', $values)."\r\n");
 402     }
 403
 404     fclose($fp);
 405     return true;
 406 }
 407
 408
 409 if (!function_exists('file_get_contents')) {
 410    function file_get_contents($file) {
 411        $file = file($file);
 412        return !$file ? false : implode('', $file);
 413    }
 414 }
 415
 416
 417 function fulldelete($location) {
 418     if (is_dir($location)) {
 419         $currdir = opendir($location);
 420         while (false !== ($file = readdir($currdir))) {
 421             if ($file <> ".." && $file <> ".") {
 422                 $fullfile = $location."/".$file;
 423                 if (is_dir($fullfile)) {
 424                     if (!fulldelete($fullfile)) {
 425                         return false;
 426                     }
 427                 } else {
 428                     if (!unlink($fullfile)) {
 429                         return false;
 430                     }
 431                 }
 432             }
 433         }
 434         closedir($currdir);
 435         if (! rmdir($location)) {
 436             return false;
 437         }
 438
 439     } else {
 440         if (!unlink($location)) {
 441             return false;
 442         }
 443     }
 444     return true;
 445 }
 446
 447 function readfile_chunked($filename,$retbytes=true) {
 448     $chunksize = 1*(1024*1024); // 1MB chunks
 449     $buffer = '';
 450     $cnt =0;// $handle = fopen($filename, 'rb');
 451     $handle = fopen($filename, 'rb');
 452     if ($handle === false) {
 453         return false;
 454     }
 455
 456     while (!feof($handle)) {
 457         $buffer = fread($handle, $chunksize);
 458         echo $buffer;
 459         if ($retbytes) {
 460             $cnt += strlen($buffer);}
 461     }
 462     $status = fclose($handle);
 463     if ($retbytes && $status) {
 464         return $cnt; // return num. bytes delivered like readfile() does.
 465     }
 466     return $status;
 467 }
 468
 469
 470 ?>