/**
* Parse OpenURL and return a keyed array
*
* @return array Parsed OpenURL values
*/
protected function parseOpenURL()
{
$title = '';
$author = '';
$isbn = '';
$issn = '';
$eissn = '';
$date = '';
$volume = '';
$issue = '';
$spage = '';
$journal = false;
if (isset($_REQUEST['url_ver']) && $_REQUEST['url_ver'] == 'Z39.88-2004') {
// Parse OpenURL 1.0
if (isset($_REQUEST['rft_val_fmt']) && $_REQUEST['rft_val_fmt'] == 'info:ofi/fmt:kev:mtx:book') {
// Book format
if (isset($_REQUEST['rft_btitle'])) {
$title = $_REQUEST['rft_btitle'];
} else {
if (isset($_REQUEST['rft_title'])) {
$title = $_REQUEST['rft_title'];
}
}
$isbn = isset($_REQUEST['rft_isbn']) ? $_REQUEST['rft_isbn'] : '';
} else {
// Journal / Article / something
$journal = true;
if (isset($_REQUEST['rft_atitle'])) {
$title = $_REQUEST['rft_atitle'];
} else {
if (isset($_REQUEST['rft_jtitle'])) {
$title = $_REQUEST['rft_jtitle'];
} else {
if (isset($_REQUEST['rft_title'])) {
$title = $_REQUEST['rft_title'];
}
}
}
$eissn = isset($_REQUEST['rft_eissn']) ? $_REQUEST['rft_eissn'] : '';
}
if (isset($_REQUEST['rft_aulast'])) {
$author = $_REQUEST['rft_aulast'];
}
if (isset($_REQUEST['rft_aufirst'])) {
$author .= ' ' . $_REQUEST['rft_aufirst'];
} else {
if (isset($_REQUEST['rft_auinit'])) {
$author .= ' ' . $_REQUEST['rft_auinit'];
}
}
$issn = isset($_REQUEST['rft_issn']) ? $_REQUEST['rft_issn'] : '';
$date = isset($_REQUEST['rft_date']) ? $_REQUEST['rft_date'] : '';
$volume = isset($_REQUEST['rft_volume']) ? $_REQUEST['rft_volume'] : '';
$issue = isset($_REQUEST['rft_issue']) ? $_REQUEST['rft_issue'] : '';
$spage = isset($_REQUEST['rft_spage']) ? $_REQUEST['rft_spage'] : '';
} else {
// OpenURL 0.1
$issn = isset($_REQUEST['issn']) ? $_REQUEST['issn'] : '';
$date = isset($_REQUEST['date']) ? $_REQUEST['date'] : '';
$volume = isset($_REQUEST['volume']) ? $_REQUEST['volume'] : '';
$issue = isset($_REQUEST['issue']) ? $_REQUEST['issue'] : '';
$spage = isset($_REQUEST['spage']) ? $_REQUEST['spage'] : '';
$isbn = isset($_REQUEST['isbn']) ? $_REQUEST['isbn'] : '';
if (isset($_REQUEST['atitle'])) {
$title = $_REQUEST['atitle'];
} else {
if (isset($_REQUEST['jtitle'])) {
$title = $_REQUEST['jtitle'];
} else {
if (isset($_REQUEST['btitle'])) {
$title = $_REQUEST['btitle'];
} else {
if (isset($_REQUEST['title'])) {
$title = $_REQUEST['title'];
}
}
}
}
if (isset($_REQUEST['aulast'])) {
$author = $_REQUEST['aulast'];
}
if (isset($_REQUEST['aufirst'])) {
$author .= ' ' . $_REQUEST['aufirst'];
} else {
if (isset($_REQUEST['auinit'])) {
$author .= ' ' . $_REQUEST['auinit'];
}
}
}
if (ISBN::isValidISBN10($isbn) || ISBN::isValidISBN13($isbn)) {
$isbnObj = new ISBN($isbn);
$isbn = $isbnObj->get13();
}
return compact('journal', 'title', 'author', 'isbn', 'issn', 'eissn', 'date', 'volume', 'issue', 'spage');
}
/**
* Checks if passed string is an ISBN and converts to ISBN 13
*
* @param string $lookfor The query string
*
* @return valid ISBN 13 or false
* @access protected
*/
protected function normalizeIfValidISBN($lookfor = false)
{
if (!$lookfor) {
return false;
}
if (ISBN::isValidISBN10($lookfor) || ISBN::isValidISBN13($lookfor)) {
$isbn = new ISBN($lookfor);
return $isbn->get13();
}
return false;
}
