$proxy_port = $_SESSION['proxy_port'];
}
if (isset($_SESSION['proxy_username'])) {
$proxy_username = $_SESSION['proxy_username'];
}
if (isset($_SESSION['proxy_password'])) {
$proxy_password = $_SESSION['proxy_password'];
}
}
include_once 'functions.php';
########## reference fetching from PubMed ##########
if (isset($_GET['id'])) {
########## open efetch, read xml ##########
if (!empty($_GET['id'])) {
$request_url = 'http://ieeexplore.ieee.org/xpl/downloadCitations?reload=true&citations-format=citation-abstract&download-format=download-ris&recordIds=' . urlencode($_GET['id']);
$ris = proxy_file_get_contents($request_url, $proxy_name, $proxy_port, $proxy_username, $proxy_password);
if (empty($ris)) {
die('Error! I, Librarian could not connect with an external web service. This usually indicates that you access the Web through a proxy server.
Enter your proxy details in Tools->Settings. Alternatively, the external service may be temporarily down. Try again later.');
}
function trim_arr(&$v, $k)
{
$v = trim($v);
}
$file_records = explode('ER -', $ris);
array_walk($file_records, 'trim_arr');
$file_records = array_filter($file_records);
if (isset($file_records[0])) {
$record = $file_records[0];
}
$record = html_entity_decode($record);
// ADD DISCIPLINE
$discipline = '';
if ($_GET['springer_discipline'] !== "0") {
$discipline = '&facet-discipline="' . urlencode($_GET['springer_discipline']) . '"';
}
// SHOW ALL?
$showall = '&showAll=true';
if (!empty($_GET['springer_showall'])) {
$showall = '&showAll=false';
}
// FINAL URL
$springer_url = 'http://link.springer.com/search/csv?sortOrder=newestFirst' . $showall . $query . $title . $author . $year_mode . $year_start . $year_end . $discipline;
// IF NO STORAGE, SEARCH SPRINGER AND SAVE RESULTS
if (!file_exists($temp_dir . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . 'springer_' . md5($springer_url) . '.sq3')) {
$csv_string = '';
$csv_string = proxy_file_get_contents($springer_url, $proxy_name, $proxy_port, $proxy_username, $proxy_password);
// if (empty($csv_string))
// die('Error! I, Librarian could not connect with an external web service. This usually indicates that you access the Web through a proxy server.
// Enter your proxy details in Tools->Settings. Alternatively, the external service may be temporarily down. Try again later.');
$csv_string = str_replace("\n\"", "{newline}\"", $csv_string);
$csv_array = explode("{newline}", $csv_string);
$index = array();
if (isset($csv_array[0])) {
unset($csv_array[0]);
}
// OPEN STORAGE
try {
$dbHandle2 = new PDO('sqlite:' . $temp_dir . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . 'springer_' . md5($springer_url) . '.sq3');
} catch (PDOException $e) {
print "Error: " . $e->getMessage() . "<br/>";
print "PHP extensions PDO and PDO_SQLite must be installed.";
########## no form data, only PDF, try to fetch DOI and PMID ##########
} elseif (isset($_POST['form_sent']) && (isset($_FILES['form_new_file']) && is_uploaded_file($_FILES['form_new_file']['tmp_name']) || !empty($_POST['form_new_file_link']))) {
$dir = dirname(__FILE__);
$rand = uniqid('lib_' . mt_rand(10, 99));
if (isset($_FILES['form_new_file']) && is_uploaded_file($_FILES['form_new_file']['tmp_name'])) {
$pdf_contents = file_get_contents($_FILES['form_new_file']['tmp_name'], NULL, NULL, 0, 100);
if (stripos($pdf_contents, '%PDF') === 0) {
move_uploaded_file($_FILES['form_new_file']['tmp_name'], $temp_dir . DIRECTORY_SEPARATOR . $rand . ".pdf");
$_POST['title'] = $_FILES['form_new_file']['name'];
$_POST['tempfile'] = $rand . ".pdf";
} else {
$error[] = "Error! No PDF was found.";
}
}
if (!empty($_POST['form_new_file_link'])) {
$pdf_contents = proxy_file_get_contents($_POST['form_new_file_link'], $proxy_name, $proxy_port, $proxy_username, $proxy_password);
if (stripos($pdf_contents, '%PDF') === 0) {
if (!empty($pdf_contents)) {
file_put_contents($temp_dir . DIRECTORY_SEPARATOR . $rand . ".pdf", $pdf_contents);
}
$_POST['title'] = $rand . ".pdf";
$_POST['tempfile'] = $rand . ".pdf";
} else {
die('Error! I, Librarian could not find the PDF. Possible reasons:<br><br>You access the Web through a proxy server. Enter your proxy details in Tools->Settings.<br><br>The external service may be temporarily down. Try again later.<br><br>The link you provided is not for a PDF.');
}
}
if (is_readable($temp_dir . DIRECTORY_SEPARATOR . $rand . ".pdf")) {
########## try to find DOI on the first page ##########
system(select_pdftotext() . '-l 1 "' . $temp_dir . DIRECTORY_SEPARATOR . $rand . '.pdf" "' . $temp_dir . DIRECTORY_SEPARATOR . $rand . '.txt"', $ret);
if (is_file($temp_dir . DIRECTORY_SEPARATOR . $rand . ".txt")) {
$string = file_get_contents($temp_dir . DIRECTORY_SEPARATOR . $rand . ".txt");
