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ajaxsupplement.php
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ajaxsupplement.php
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<?php
//AJAX backend for the supplementary file tab
include_once 'data.php';
include_once 'functions.php';
$proxy_name = '';
$proxy_port = '';
$proxy_username = '';
$proxy_password = '';
if (isset($_SESSION['connection']) && ($_SESSION['connection'] == "autodetect" || $_SESSION['connection'] == "url")) {
if (!empty($_POST['proxystr'])) {
$proxy_arr = explode(';', $_POST['proxystr']);
foreach ($proxy_arr as $proxy_str) {
if (stripos(trim($proxy_str), 'PROXY') === 0) {
$proxy_str = trim(substr($proxy_str, 6));
$proxy_name = parse_url($proxy_str, PHP_URL_HOST);
$proxy_port = parse_url($proxy_str, PHP_URL_PORT);
$proxy_username = parse_url($proxy_str, PHP_URL_USER);
$proxy_password = parse_url($proxy_str, PHP_URL_PASS);
break;
}
}
}
} elseif (isset($_SESSION['connection']) && $_SESSION['connection'] == "proxy") {
if (isset($_SESSION['proxy_name']))
$proxy_name = $_SESSION['proxy_name'];
if (isset($_SESSION['proxy_port']))
$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'];
}
session_write_close();
$error = null;
if (isset($_POST['filename']) && preg_match('/[^a-zA-Z0-9\.]/', $_POST['filename']) > 0)
$error = 'Invalid request.';
########## remove supplementary files ##########
if (!empty($_GET['files_to_delete'])) {
while (list($key, $supplementary_file) = each($_GET['files_to_delete'])) {
$supplementary_file = preg_replace('/[\/\\\]/', '_', $supplementary_file);
if (is_file(IL_SUPPLEMENT_PATH . DIRECTORY_SEPARATOR . get_subfolder($supplementary_file) . DIRECTORY_SEPARATOR . $supplementary_file))
unlink(IL_SUPPLEMENT_PATH . DIRECTORY_SEPARATOR . get_subfolder($supplementary_file) . DIRECTORY_SEPARATOR . $supplementary_file);
}
}
########## rename supplementary files ##########
if (!empty($_POST['rename']) && !empty($_POST['file'])) {
while (list($old_name, $new_name) = each($_POST['rename'])) {
$old_name = preg_replace('/[\/\\\]/', '_', $old_name);
if (is_writable(IL_SUPPLEMENT_PATH . DIRECTORY_SEPARATOR . get_subfolder($old_name) . DIRECTORY_SEPARATOR . $old_name) && !empty($new_name)) {
$new_name = preg_replace('/[\/\\\]/', '_', $new_name);
$new_name = preg_replace('/[^a-zA-Z0-9\-\_\.]/', '_', $new_name);
$new_name = substr($old_name, 0, 5) . $new_name;
if ($old_name != $new_name)
$rename = rename(IL_SUPPLEMENT_PATH . DIRECTORY_SEPARATOR . get_subfolder($old_name) . DIRECTORY_SEPARATOR . $old_name, IL_SUPPLEMENT_PATH . DIRECTORY_SEPARATOR . get_subfolder($new_name) . DIRECTORY_SEPARATOR . $new_name);
}
}
}
########## record supplementary files ##########
if (!empty($_FILES['form_supplementary_file']['name'])) {
for ($i = 0; $i < count($_FILES['form_supplementary_file']['name']); $i++) {
if (is_uploaded_file($_FILES['form_supplementary_file']['tmp_name'][$i])) {
$new_name = preg_replace('/[\/\\\]/', '_', $_FILES['form_supplementary_file']['name'][$i]);
$new_name = preg_replace('/[^a-zA-Z0-9\-\_\.]/', '_', $new_name);
$new_name = sprintf("%05d", intval($_POST['file'])) . $new_name;
move_uploaded_file($_FILES['form_supplementary_file']['tmp_name'][$i], IL_SUPPLEMENT_PATH . DIRECTORY_SEPARATOR . get_subfolder($new_name, IL_SUPPLEMENT_PATH) . DIRECTORY_SEPARATOR . $new_name);
}
}
}
########## record graphical abstract ##########
if (isset($_FILES['form_graphical_abstract']) && is_uploaded_file($_FILES['form_graphical_abstract']['tmp_name'])) {
$extension = pathinfo($_FILES['form_graphical_abstract']['name'], PATHINFO_EXTENSION);
if (empty($extension))
$extension = 'jpg';
$new_name = sprintf("%05d", intval($_POST['file'])) . 'graphical_abstract.' . $extension;
move_uploaded_file($_FILES['form_graphical_abstract']['tmp_name'], IL_SUPPLEMENT_PATH . DIRECTORY_SEPARATOR . get_subfolder($new_name, IL_SUPPLEMENT_PATH) . DIRECTORY_SEPARATOR . $new_name);
}
########## replace PDF ##########
if (isset($_FILES['form_new_file']) && is_uploaded_file($_FILES['form_new_file']['tmp_name'])) {
$file_extension = pathinfo($_FILES['form_new_file']['name'], PATHINFO_EXTENSION);
if (in_array($file_extension, array('doc', 'docx', 'vsd', 'xls', 'xlsx', 'ppt', 'pptx', 'odt', 'ods', 'odp'))) {
$move = move_uploaded_file($_FILES['form_new_file']['tmp_name'], IL_TEMP_PATH . DIRECTORY_SEPARATOR . $_FILES['form_new_file']['name']);
if (PHP_OS == 'Linux' || PHP_OS == 'Darwin')
putenv('HOME=' . IL_TEMP_PATH);
exec(select_soffice() . ' --headless --convert-to pdf --outdir ' . escapeshellarg(IL_TEMP_PATH) . ' ' . escapeshellarg(IL_TEMP_PATH . DIRECTORY_SEPARATOR . $_FILES['form_new_file']['name']));
if (PHP_OS == 'Linux' || PHP_OS == 'Darwin')
putenv('HOME=""');
$converted_file = IL_TEMP_PATH . DIRECTORY_SEPARATOR . basename($_FILES['form_new_file']['name'], '.' . $file_extension) . '.pdf';
if (!is_file($converted_file)) {
die("Error! Conversion to PDF failed.<br>" . htmlspecialchars($title));
} else {
copy($converted_file, IL_TEMP_PATH . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . $_POST['filename']);
$supplement_filename = sprintf("%05d", intval($_POST['filename'])) . $_FILES['form_new_file']['name'];
copy(IL_TEMP_PATH . DIRECTORY_SEPARATOR . $_FILES['form_new_file']['name'], IL_SUPPLEMENT_PATH . DIRECTORY_SEPARATOR . get_subfolder($supplement_filename, IL_SUPPLEMENT_PATH) . DIRECTORY_SEPARATOR . $supplement_filename);
unlink($converted_file);
}
} else {
move_uploaded_file($_FILES['form_new_file']['tmp_name'], IL_TEMP_PATH . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . $_POST['filename']);
}
}
if (!empty($_POST['form_new_file_link'])) {
$contents = getFromWeb($_POST['form_new_file_link'], $proxy_name, $proxy_port, $proxy_username, $proxy_password);
if (empty($contents)) {
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 invalid, or is not for a PDF.');
}
$pdf_contents = strstr($contents, "%PDF");
if (empty($pdf_contents)) {
die('Error! This link does not lead to a PDF file.');
}
file_put_contents(IL_TEMP_PATH . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . $_POST['filename'], $pdf_contents);
}
if (!empty($_POST['filename']) && is_writable(IL_TEMP_PATH . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . $_POST['filename'])) {
$uploaded_file_content = file_get_contents(IL_TEMP_PATH . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . $_POST['filename'], FILE_BINARY, null, 0, 100);
if (stripos($uploaded_file_content, '%PDF') === 0) {
copy(IL_TEMP_PATH . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . $_POST['filename'], IL_PDF_PATH . DIRECTORY_SEPARATOR . get_subfolder($_POST['filename'], IL_PDF_PATH) . DIRECTORY_SEPARATOR . $_POST['filename']);
unlink(IL_TEMP_PATH . DIRECTORY_SEPARATOR . 'lib_' . session_id() . DIRECTORY_SEPARATOR . $_POST['filename']);
$hash = md5_file(IL_PDF_PATH . DIRECTORY_SEPARATOR . get_subfolder($_POST['filename']) . DIRECTORY_SEPARATOR . $_POST['filename']);
} else {
$error = "This is not a PDF.";
}
//RECORD FILE HASH FOR DUPLICATE DETECTION
if (!empty($hash)) {
database_connect(IL_DATABASE_PATH, 'library');
$hash = $dbHandle->quote($hash);
$file = $dbHandle->quote($_POST['filename']);
$dbHandle->exec('UPDATE library SET filehash=' . $hash . ' WHERE file=' . $file);
$dbHandle = null;
}
########## extract text from pdf ##########
if (!isset($error)) {
$filename = $_POST['filename'];
$error = recordFulltext($_POST['file'], $filename);
}
}
// DELETE USERS' CACHED PAGES BECAUSE FILES HAVE CHANGED
$clean_files = glob(IL_TEMP_PATH . DIRECTORY_SEPARATOR . 'lib_*' . DIRECTORY_SEPARATOR . 'page_*', GLOB_NOSORT);
if (is_array($clean_files)) {
foreach ($clean_files as $clean_file) {
if (is_file($clean_file) && is_writable($clean_file))
@unlink($clean_file);
}
}
if (!empty($error)) {
print "Error! " . $error;
}