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Add kwg-lite ontology files #45

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shirlysteph merged 2 commits into from
Jun 16, 2023
Merged

Add kwg-lite ontology files #45

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675a5cc
Add kwg-lite ontology files
ThomasThelen Jun 16, 2023
4ad79f4
Update lite-ontology index
ThomasThelen Jun 16, 2023
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76 changes: 76 additions & 0 deletions src/server/server.js
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Original file line number Diff line number Diff line change
Expand Up @@ -151,6 +151,7 @@ function resolve_endpoint(s_endpoint, d_res) {
const k_app = express();
const PD_ROOT = path.resolve(__dirname, '../../');
const SCHEMA_BASE_DIR = path.join('static', 'schema');
const SCHEMA_LITE_BASE_DIR = path.join('static', 'kwg-lite');
const R_SAFE_PATH = /^[\w-]+$/;

function assert_safe_path(s_file, d_res) {
Expand Down Expand Up @@ -183,6 +184,8 @@ k_app.use('/static/css', express.static(path.join(PD_ROOT, 'static/css')));
k_app.use('/static/js', express.static(path.join(PD_ROOT, 'static/js')));
k_app.use('/static/images', express.static(path.join(PD_ROOT, 'static/images')));
k_app.use('/static/schema', express.static(path.join(PD_ROOT, SCHEMA_BASE_DIR)));
k_app.use('/static/schema-lite', express.static(path.join(PD_ROOT, SCHEMA_LITE_BASE_DIR)));


k_app.get('/', (d_req, d_res) => {
d_res.sendFile(path.join(PD_ROOT, 'static/html/index.html'));
Expand Down Expand Up @@ -435,6 +438,68 @@ const serve_ontology_file = (d_req, d_res, f_next) => {
d_res.sendFile(file_path);
}


// handler for /lod/ontology, with content negotation
const serve_lite_ontology_site = (d_req, d_res, f_next) => {
d_req.negotiate({
'text/html': () => {
d_res.type("text/html");
d_res.statusCode = 200;
d_res.sendFile(path.join(PD_ROOT, SCHEMA_LITE_BASE_DIR, 'index.html'));
},
'application/rdf+xml': () => {
d_res.type("application/rdf+xml");
d_res.statusCode = 200;
d_res.sendFile(path.join(PD_ROOT, SCHEMA_LITE_BASE_DIR, 'ontology.rdf'));
},
'text/turtle': () => {
d_res.type("text/turtle");
d_res.statusCode = 200;
d_res.sendFile(path.join(PD_ROOT, SCHEMA_LITE_BASE_DIR, 'ontology.ttl'));
},
'application/ld+json': () => {
d_res.type("application/ld+json");
d_res.statusCode = 200;
d_res.sendFile(path.join(PD_ROOT, SCHEMA_LITE_BASE_DIR, 'ontology.jsonld'));
},
'text/ntriples': () => {
d_res.type("text/ntriples");
d_res.statusCode = 200;
d_res.sendFile(path.join(PD_ROOT, SCHEMA_LITE_BASE_DIR, 'ontology.nt'));
}
});
}

// handler for /lod/ontology with extension
const serve_lite_ontology_file = (d_req, d_res, f_next) => {
const extension = d_req.params.ext;
const file_path = path.join(PD_ROOT, SCHEMA_LITE_BASE_DIR, 'ontology' + extension)

if (!fs.existsSync(file_path)) {
d_res.statusCode = 404;
d_res.send("Not Found")

return;
}

var content_type;

if (extension == ".ttl") {
content_type = "text/turtle";
} if (extension == ".nt") {
content_type = "text/ntriples";
} if (extension == ".rdf") {
content_type = "application/rdf+xml";
} if (extension == ".jsonld") {
content_type = "application/ld+json";
}

d_res.type(content_type);
d_res.statusCode = 200;
d_res.sendFile(file_path);
}


// requests for /lod/ontology
k_app.use([
'/lod/ontology',
Expand All @@ -444,6 +509,17 @@ k_app.use([
'/lod/ontology:ext',
], serve_ontology_file);


// requests for /lod/ontology
k_app.use([
'/lod/lite-ontology',
], serve_lite_ontology_site);

k_app.use([
'/lod/lite-ontology:ext',
], serve_lite_ontology_file);


// fetch specific pack
k_app.get([
'/static/pack/:pack',
Expand Down
10 changes: 10 additions & 0 deletions static/kwg-lite/406.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>406 Not Acceptable</title>
</head>
<body>
<h1>Not Acceptable</h1>
<p>An appropriate representation of the requested resource could not be found on this server.</p>
Available variants:<ul><li><a href="index-en.html">html</a></li><li><a href="ontology.jsonld">JSON-LD</a></li><li><a href="ontology.rdf">RDF/XML</a></li><li><a href="ontology.nt">N-Triples</a></li><li><a href="ontology.ttl">TTL</a></li></ul>

</body></html>
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