132 lines
4.1 KiB
PHP
132 lines
4.1 KiB
PHP
<?php
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/**
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* Simple OAI-PMH 2.0 Data Provider
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* Copyright (C) 2017 Sebastian Meyer <sebastian.meyer@opencultureconsulting.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// Make this script only executable via commandline interface!
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if (php_sapi_name() !== 'cli') exit;
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require_once('oai2config.php');
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/**
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* Format output string
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*
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* @param string $text
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* @param string $format 'green' or 'red'
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*
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* @return string
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*/
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function format($text, $format = '') {
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switch ($format) {
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case 'green':
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$text = "\033[0;92m$text\033[0m";
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break;
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case 'red':
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$text = "\033[1;91m$text\033[0m";
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break;
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default:
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break;
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}
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return $text;
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}
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// Check mandatory cli arguments
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if (empty($argc) || $argc != 3) {
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echo "Usage:\n";
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echo " php update.php [sourceDir] [metadataPrefix]\n";
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echo "\n";
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echo "Example:\n";
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echo " php update.php /tmp/import oai_dc\n";
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echo "\n";
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exit;
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}
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list(, $sourceDir, $metadataPrefix) = $argv;
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// Check metadataPrefix
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if (empty($config['metadataFormats'][$metadataPrefix])) {
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echo "Error: metadataPrefix $metadataPrefix not defined in oai2config.php\n";
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exit;
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}
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// Check sourceDir permissions
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if (!is_dir($sourceDir) || !is_readable($sourceDir)) {
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echo "Error: $sourceDir not readable\n";
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exit;
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}
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$sourceDir = rtrim($sourceDir, '/').'/';
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// Prepend script's path if dataDir is not an absolute path
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$dataDir = rtrim($config['dataDirectory'], '/').'/'.$metadataPrefix.'/';
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if (strpos($dataDir, '/') !== 0) {
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$dataDir = dirname(__FILE__).'/'.$dataDir;
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}
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// Check dataDir permissions
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if (!is_dir($dataDir) || !is_writable($dataDir)) {
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echo "Error: $dataDir not writable\n";
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exit;
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}
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// Alright, let's start!
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echo "Updating $dataDir from $sourceDir\n";
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$todo = array ();
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$error = false;
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$oldFiles = glob($dataDir.'*.xml');
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foreach ($oldFiles as $oldFile) {
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$todo[pathinfo($oldFile, PATHINFO_FILENAME)] = 'delete';
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}
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$newFiles = glob($sourceDir.'*.xml');
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foreach ($newFiles as $newFile) {
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$todo[pathinfo($newFile, PATHINFO_FILENAME)] = 'update';
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}
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foreach ($todo as $identifier => $task) {
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echo " Checking record $identifier ... ";
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if ($task === 'update') {
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if (!file_exists($dataDir.$identifier.'.xml')) {
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// Add file
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if (copy($sourceDir.$identifier.'.xml', $dataDir.$identifier.'.xml')) {
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echo format('added', 'green')."\n";
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} else {
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echo format('addition failed', 'red')."\n";
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$error = true;
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}
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} elseif (md5_file($sourceDir.$identifier.'.xml') !== md5_file($dataDir.$identifier.'.xml')) {
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// Replace file
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if (copy($sourceDir.$identifier.'.xml', $dataDir.$identifier.'.xml')) {
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echo format('updated', 'green')."\n";
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} else {
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echo format('update failed', 'red')."\n";
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$error = true;
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}
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} else {
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echo "unchanged\n";
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}
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} elseif ($task === 'delete') {
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if (filesize($dataDir.$identifier.'.xml') !== 0) {
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// Truncate file
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if (fclose(fopen($dataDir.$identifier.'.xml', 'w'))) {
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echo format('deleted', 'green')."\n";
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} else {
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echo format('deletion failed', 'red')."\n";
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$error = true;
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}
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} else {
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echo "unchanged\n";
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}
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}
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}
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if ($error) {
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echo "Update completed, but errors occurred. Please check the logs!\n";
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} else {
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echo "Update successfully completed!\n";
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}
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