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<?php
/**
* Utilities to import and export bookmarks using the Netscape format
*/
class NetscapeBookmarkUtils
{
/**
* Filters links and adds Netscape-formatted fields
*
* Added fields:
* - timestamp link addition date, using the Unix epoch format
* - taglist comma-separated tag list
*
* @param LinkDB $linkDb Link datastore
* @param string $selection Which links to export: (all|private|public)
* @param bool $prependNoteUrl Prepend note permalinks with the server's URL
* @param string $indexUrl Absolute URL of the Shaarli index page
*
* @throws Exception Invalid export selection
*
* @return array The links to be exported, with additional fields
*/
public static function filterAndFormat($linkDb, $selection, $prependNoteUrl, $indexUrl)
{
// see tpl/export.html for possible values
if (! in_array($selection, array('all', 'public', 'private'))) {
throw new Exception('Invalid export selection: "'.$selection.'"');
}
$bookmarkLinks = array();
foreach ($linkDb as $link) {
if ($link['private'] != 0 && $selection == 'public') {
continue;
}
if ($link['private'] == 0 && $selection == 'private') {
continue;
}
$date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
$link['timestamp'] = $date->getTimestamp();
$link['taglist'] = str_replace(' ', ',', $link['tags']);
if (startsWith($link['url'], '?') && $prependNoteUrl) {
$link['url'] = $indexUrl . $link['url'];
}
$bookmarkLinks[] = $link;
}
return $bookmarkLinks;
}
}
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