function importFile()
{
if (!(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'])) {
die('Not allowed.');
}
$LINKSDB = new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']);
// Read links from database (and filter private links if used it not logged in).
$filename = $_FILES['filetoupload']['name'];
$filesize = $_FILES['filetoupload']['size'];
$data = file_get_contents($_FILES['filetoupload']['tmp_name']);
$private = empty($_POST['private']) ? 0 : 1;
// Should the links be imported as private ?
$overwrite = !empty($_POST['overwrite']);
// Should the imported links overwrite existing ones ?
$import_count = 0;
// Sniff file type:
$type = 'unknown';
if (startsWith($data, '<!DOCTYPE NETSCAPE-Bookmark-file-1>')) {
$type = 'netscape';
}
// Netscape bookmark file (aka Firefox).
// Then import the bookmarks.
if ($type == 'netscape') {
// This is a standard Netscape-style bookmark file.
// This format is supported by all browsers (except IE, of course), also delicious, diigo and others.
foreach (explode('<DT>', $data) as $html) {
$link = array('linkdate' => '', 'title' => '', 'url' => '', 'description' => '', 'tags' => '', 'private' => 0);
$d = explode('<DD>', $html);
if (startswith($d[0], '<A ')) {
$link['description'] = isset($d[1]) ? html_entity_decode(trim($d[1]), ENT_QUOTES, 'UTF-8') : '';
// Get description (optional)
preg_match('!<A .*?>(.*?)</A>!i', $d[0], $matches);
$link['title'] = isset($matches[1]) ? trim($matches[1]) : '';
// Get title
$link['title'] = html_entity_decode($link['title'], ENT_QUOTES, 'UTF-8');
preg_match_all('! ([A-Z_]+)=\\"(.*?)"!i', $html, $matches, PREG_SET_ORDER);
// Get all other attributes
$raw_add_date = 0;
foreach ($matches as $m) {
$attr = $m[1];
$value = $m[2];
if ($attr == 'HREF') {
$link['url'] = html_entity_decode($value, ENT_QUOTES, 'UTF-8');
} elseif ($attr == 'ADD_DATE') {
$raw_add_date = intval($value);
} elseif ($attr == 'PRIVATE') {
$link['private'] = $value == '0' ? 0 : 1;
} elseif ($attr == 'TAGS') {
$link['tags'] = html_entity_decode(str_replace(',', ' ', $value), ENT_QUOTES, 'UTF-8');
}
}
if ($link['url'] != '') {
if ($private == 1) {
$link['private'] = 1;
}
$dblink = $LINKSDB->getLinkFromUrl($link['url']);
// See if the link is already in database.
if ($dblink == false) {
// Link not in database, let's import it...
if (empty($raw_add_date)) {
$raw_add_date = time();
}
// In case of shitty bookmark file with no ADD_DATE
// Make sure date/time is not already used by another link.
// (Some bookmark files have several different links with the same ADD_DATE)
// We increment date by 1 second until we find a date which is not used in db.
// (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
while (!empty($LINKSDB[date('Ymd_His', $raw_add_date)])) {
$raw_add_date++;
}
// Yes, I know it's ugly.
$link['linkdate'] = date('Ymd_His', $raw_add_date);
$LINKSDB[$link['linkdate']] = $link;
$import_count++;
} else {
if ($overwrite) {
// If overwrite is required, we import link data, except date/time.
$link['linkdate'] = $dblink['linkdate'];
$LINKSDB[$link['linkdate']] = $link;
$import_count++;
}
}
}
}
}
$LINKSDB->savedb();
echo '<script language="JavaScript">alert("File ' . $filename . ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location=\'?\';</script>';
} else {
echo '<script language="JavaScript">alert("File ' . $filename . ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
}
}
