Create if not there. Create .htaccess protection if missing.
| static public getExportFolder ( ) : string | ||
| return | string | fullpath |
function download_open_export_file($filename)
{
$filepath = \Pressbooks\Modules\Export\Export::getExportFolder() . $filename;
if (!is_readable($filepath)) {
// Cannot read file
wp_die(__('File not found', 'pressbooks-textbook') . ": {$filename}", '', array('response' => 404));
}
// Force download
set_time_limit(0);
header('Content-Description: File Transfer');
header('Content-Type: ' . \Pressbooks\Modules\Export\Export::mimeType($filepath));
header('Content-Disposition: attachment; filename="' . $filename . '"');
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($filepath));
@ob_clean();
flush();
while (@ob_end_flush()) {
}
// Fix out-of-memory problem
readfile($filepath);
exit;
}
/**
* Truncate the exports directory, delete old files.
*
* @param int $max
* @param string $dir fullpath to the Exports fo
* lder. (optional)
*/
function truncate_exports($max, $dir = null)
{
if (!$dir) {
$dir = \PressBooks\Modules\Export\Export::getExportFolder();
} else {
$dir = rtrim($dir, '/') . '/';
}
$max = absint($max);
$files = group_exports($dir);
$i = 1;
foreach ($files as $date => $exports) {
if ($i > $max) {
foreach ($exports as $export) {
$export = realpath($dir . $export);
WP_Filesystem();
unlink($export);
}
}
++$i;
}
}
/**
* Scan the export directory, return latest of each file type
*
* @return array
*/
function latest_exports()
{
$suffix = array('._3.epub', '.epub', '.pdf', '.mobi', '.hpub', '.icml', '.html', '.xml', '._vanilla.xml', '._oss.pdf', '.odt');
$dir = \Pressbooks\Modules\Export\Export::getExportFolder();
$files = array();
// group by extension, sort by date newest first
foreach (\Pressbooks\Utility\scandir_by_date($dir) as $file) {
// only interested in the part of filename starting with the timestamp
preg_match('/-\\d{10,11}(.*)/', $file, $matches);
// grab the first captured parenthisized subpattern
$ext = $matches[1];
$files[$ext][] = $file;
}
// get only one of the latest of each type
$latest = array();
foreach ($suffix as $value) {
if (array_key_exists($value, $files)) {
$latest[$value] = $files[$value][0];
}
}
// @TODO filter these results against user prefs
return $latest;
}