First draft

2026-04-30 16:08:01 +02:00
parent 7ce97c0c55
commit e09a9fc2a6
21 changed files with 7137 additions and 0 deletions
--- a/src/OAI/OaiBase.php
+++ b/src/OAI/OaiBase.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\OAI;
+
+use \DOMDocument;
+
+use function Symfony\Component\String\b;
+
+/**
+ * Creates the base XML document containing dynamically generated responses
+ * @todo different create functions depending on request type? e.g. GetRecord
+ */
+final class OaiBase
+{
+    /**
+     * @param string $content The dynamically generated XML response
+     * @param string $nodeName The root node name to be imported
+     */
+    public static function create(string $content, string $nodeName, string $metadataFormat = 'oai_dc'): string
+    {
+        $main = new DOMDocument(encoding: 'UTF-8');
+        $main->formatOutput = true;
+        $xslt = $main->createProcessingInstruction('xml-stylesheet', 'type="text/xsl" href="/xslt/oai2.xsl"');
+        $main->appendChild($xslt);
+
+        $imported = new DOMDocument(encoding: 'UTF-8');
+        $imported->loadXML(b($content)->toUnicodeString()->toString(), LIBXML_NOWARNING);
+        $node = $imported->getElementsByTagName($nodeName)->item(0);
+
+        $root = $main->createElement('OAI-PMH');
+        $root->setAttribute('xmlns', 'http://www.openarchives.org/OAI/2.0/');
+        $root->setAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
+        $root->setAttribute('xsi:schemaLocation', 'http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd');
+        $responseDate = $main->createElement('responseDate', date("Y-m-d\TH:i:s\Z"));                                   
+        $root->appendChild($responseDate);
+        $request = $main->createElement('request', 'https://www.yourdomain.com/oai');
+
+        if ($nodeName !== 'error') {
+            $request->setAttribute('verb', $nodeName);
+            // TODO dynamic metadata prefix!
+            $request->setAttribute('metadataPrefix', $metadataFormat);
+        }
+
+        $root->appendChild($request);
+        $main->appendChild($root);
+        $node = $main->importNode($node, true);
+        $root->appendChild($node);
+
+        // To avoid error when importing XML from RecordOaiDatacite... (why??)
+        if ($metadataFormat === 'oai_datacite') {
+            $oai_datacite = $main->getElementsByTagName('oai_datacite')->item(0);
+            $resource = $main->getElementsByTagName('resource')->item(0);
+            $xmlns = $main->createAttribute('xmlns');
+            $xsi = $main->createAttribute('xsi:schemaLocation');
+            $xmlnsRes = $main->createAttribute('xmlns');
+            $xsiRes = $main->createAttribute('xsi:schemaLocation');
+            $xsi->value = "http://schema.datacite.org/oai/oai-1.1/ http://schema.datacite.org/oai/oai-1.1/oai.xsd";
+            $xmlns->value = "http://schema.datacite.org/oai/oai-1.1/";
+            $oai_datacite->appendChild($xmlns);
+            $oai_datacite->appendChild($xsi);
+            $xmlnsRes->value = "http://datacite.org/schema/kernel-3";
+            $xsiRes->value = "http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd";
+            $resource->appendChild($xmlnsRes);
+            $resource->appendChild($xsiRes);
+        }
+
+        return $main->saveXML();
+    }
+}