Sync downloadalbum in branch '3.1'
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55babdfc85
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@ -22,30 +22,55 @@ class downloadalbum_Controller extends Controller {
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/**
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* Generate a ZIP on-the-fly.
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*/
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public function zip($id) {
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$album = $this->init($id);
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$files = $this->getFilesList($album);
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public function zip($container_type, $id) {
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switch($container_type) {
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case "album":
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$container = ORM::factory("item", $id);
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if (!$container->is_album()) {
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throw new Kohana_Exception('container is not an album: '.$container->relative_path());
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}
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$zipname = (empty($container->name))
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? 'Gallery.zip' // @todo purified_version_of($container->title).'.zip'
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: $container->name.'.zip';
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break;
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case "tag":
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// @todo: if the module is not installed, it crash
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$container = ORM::factory("tag", $id);
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if (is_null($container->name)) {
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throw new Kohana_Exception('container is not a tag: '.$id);
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}
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$zipname = $container->name.'.zip';
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break;
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default:
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throw new Kohana_Exception('unhandled container type: '.$container_type);
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}
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$files = $this->getFilesList($container);
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// Calculate ZIP size (look behind for details)
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$zipsize = 22;
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foreach($files as $f) {
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$zipsize += 76 + 2*strlen($f) + filesize($f);
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foreach($files as $f_name => $f_path) {
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$zipsize += 76 + 2*strlen($f_name) + filesize($f_path);
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}
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// Send headers
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$this->prepareOutput();
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$this->sendHeaders($album->name.'.zip', $zipsize);
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$this->sendHeaders($zipname, $zipsize);
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// Generate and send ZIP file
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// http://www.pkware.com/documents/casestudies/APPNOTE.TXT (v6.3.2)
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$lfh_offset = 0;
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$cds = '';
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$cds_offset = 0;
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foreach($files as $f) {
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$f_namelen = strlen($f);
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$f_size = filesize($f);
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$f_mtime = $this->unix2dostime(filemtime($f));
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$f_crc32 = $this->fixBug45028(hexdec(hash_file('crc32b', $f, false)));
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foreach($files as $f_name => $f_path) {
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$f_namelen = strlen($f_name);
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$f_size = filesize($f_path);
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$f_mtime = $this->unix2dostime(filemtime($f_path));
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$f_crc32 = $this->fixBug45028(hexdec(hash_file('crc32b', $f_path, false)));
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// Local file header
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echo pack('VvvvVVVVvva' . $f_namelen,
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@ -60,12 +85,12 @@ class downloadalbum_Controller extends Controller {
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$f_namelen, // file name length (2 bytes)
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0, // extra field length (2 bytes)
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$f // file name (variable size)
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$f_name // file name (variable size)
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// extra field (variable size) => n/a
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);
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// File data
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readfile($f);
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readfile($f_path);
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// Data descriptor (n/a)
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@ -88,7 +113,7 @@ class downloadalbum_Controller extends Controller {
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0x81b40000, // external file attributes (4 bytes) => chmod 664
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$lfh_offset, // relative offset of local header (4 bytes)
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$f // file name (variable size)
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$f_name // file name (variable size)
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// extra field (variable size) => n/a
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// file comment (variable size) => n/a
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);
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@ -128,59 +153,58 @@ class downloadalbum_Controller extends Controller {
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}
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/**
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* Init
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*/
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private function init($id) {
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$item = ORM::factory("item", $id);
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// Only send an album
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if (!$item->is_album()) {
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// @todo: throw an exception?
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Kohana::log('error', 'item is not an album: '.$item->relative_path());
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exit;
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}
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// Must have view_full to download the originals files
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access::required("view_full", $item);
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return $item;
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}
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/**
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* Return the files that must be included in the archive.
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*/
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private function getFilesList($album) {
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private function getFilesList($container) {
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$files = array();
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// Go to the parent of album so the ZIP will not contains all the
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// server hierarchy
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if (!chdir($album->file_path().'/../')) {
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// @todo: throw an exception?
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Kohana::log('error', 'unable to chdir('.$item->file_path().'/../)');
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exit;
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}
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$cwd = getcwd();
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if( $container instanceof Item_Model && $container->is_album() ) {
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$container_realpath = realpath($container->file_path().'/../');
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$items = $album->viewable()
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$items = $container->viewable()
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->descendants(null, null, array(array("type", "<>", "album")));
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foreach($items as $i) {
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if (!access::can('view_full', $i)) {
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continue;
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}
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$relative_path = str_replace($cwd.'/', '', realpath($i->file_path()));
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if (!is_readable($relative_path)) {
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$i_realpath = realpath($i->file_path());
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if (!is_readable($i_realpath)) {
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continue;
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}
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$files[] = $relative_path;
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$i_relative_path = str_replace($container_realpath.DIRECTORY_SEPARATOR, '', $i_realpath);
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$i_relative_path = str_replace(DIRECTORY_SEPARATOR, '/', $i_relative_path);
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$files[$i_relative_path] = $i_realpath;
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}
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} else if( $container instanceof Tag_Model ) {
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$items = $container->items();
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foreach($items as $i) {
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if (!access::can('view_full', $i)) {
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continue;
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}
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if( $i->is_album() ) {
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foreach($this->getFilesList($i) as $f_name => $f_path) {
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$files[$container->name.'/'.$f_name] = $f_path;
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}
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} else {
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$i_realpath = realpath($i->file_path());
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if (!is_readable($i_realpath)) {
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continue;
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}
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$i_relative_path = $container->name.'/'.$i->name;
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$files[$i_relative_path] = $i_realpath;
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}
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}
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}
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if (count($files) === 0) {
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// @todo: throw an exception?
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Kohana::log('error', 'no zippable files in ['.$album->relative_path().']');
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exit;
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throw new Kohana_Exception('no zippable files in ['.$container->name.']');
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}
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return $files;
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@ -264,9 +288,13 @@ class downloadalbum_Controller extends Controller {
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* See http://bugs.php.net/bug.php?id=45028
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*/
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private function fixBug45028($hash) {
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return (version_compare(PHP_VERSION, '5.2.7', '<'))
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? (($hash & 0x000000ff) << 24) + (($hash & 0x0000ff00) << 8)
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+ (($hash & 0x00ff0000) >> 8) + (($hash & 0xff000000) >> 24)
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: $hash;
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$output = $hash;
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if( version_compare(PHP_VERSION, '5.2.7', '<') ) {
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$str = str_pad(dechex($hash), 8, '0', STR_PAD_LEFT);
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$output = hexdec($str{6}.$str{7}.$str{4}.$str{5}.$str{2}.$str{3}.$str{0}.$str{1});
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}
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return $output;
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}
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}
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*/
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class downloadalbum_event_Core {
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static function album_menu($menu, $theme) {
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if (access::can("view_full", $theme->item)) {
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$downloadLink = url::site("downloadalbum/zip/{$theme->item->id}");
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$downloadLink = url::site("downloadalbum/zip/album/{$theme->item->id}");
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$menu
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->append(Menu::factory("link")
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->id("downloadalbum")
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->label(t("Download Album"))
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->url($downloadLink)
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->css_id("g-download-album-link"));
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}
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static function tag_menu($menu, $theme) {
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$downloadLink = url::site("downloadalbum/zip/tag/{$theme->tag()->id}");
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$menu
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->append(Menu::factory("link")
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->id("downloadalbum")
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@ -29,4 +38,3 @@ class downloadalbum_event_Core {
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->css_id("g-download-album-link"));
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}
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}
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}
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*/
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class downloadalbum_theme {
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static function head($theme) {
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if ($theme->item && access::can("view_full", $theme->item)) {
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$theme->css("downloadalbum_menu.css");
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}
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}
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}
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name = "DownloadAlbum"
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description = "Displays a link to download a ZIP archive of the current album."
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version = 1
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version = 2
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