Some error handling + change DN and DO filename parsing

routes/index.mjs

@@ -6,30 +6,56 @@ import express from 'express';
 
 let router = express.Router();
 
+// TODO Log errors
+
 /* GET manifest JSON */
 router.get('/iiif/:manifestid/manifest', async function(req, res) {
-	const manifest = await generateManifest(req.params.manifestid)
+	let manifest = {};
 	res.set('Access-Control-Allow-Origin', '*');
+	try {
+		manifest = await generateManifest(req.params.manifestid)
+	} catch(error) {
+		res.status(500).json({
+			status: 500,
+			message: 'There was an error processing this request',
+			details: error
+		});
+	}
 	res.json(manifest);
 });
 
 /* GET canvas JSON */
 router.get('/iiif/:manifestid/canvas/:name', async function(req, res) {
-	const canvas = await generateCanvas(req.params.manifestid, req.params.name)
+	let canvas = {};
 	res.set('Access-Control-Allow-Origin', '*');
+	try {
+		canvas = await generateCanvas(req.params.manifestid, req.params.name)
+	} catch(error) {
+		res.status(500).json({status: 500, message: 'There was an error processing this request'});
+	}
 	res.json(canvas);
 });
 
 /* GET sequence JSON */
 router.get('/iiif/:manifestid/sequence/:name', async function(req, res) {
-	const sequence = await generateSequence(req.params.manifestid, req.params.name)
+	let sequence = {};
 	res.set('Access-Control-Allow-Origin', '*');
+	try {
+		sequence = await generateSequence(req.params.manifestid, req.params.name)
+	} catch(error) {
+		res.status(500).json({status: 500, message: 'There was an error processing this request'});
+	}
 	res.json(sequence);
 });
 
 /* GET possible params for manifest responses */
 router.get('/params', async function(req, res) {
-	res.json(await exposeParams());
+	res.set('Access-Control-Allow-Origin', '*');
+	try {
+		res.json(await exposeParams());
+	} catch(error) {
+		res.status(500).json({status: 500, message: 'There was an error processing this request'});
+	}
 });
 
 export default router;

src/Image.js

@@ -41,8 +41,9 @@ function splitHSI(filename) {
 
 function splitDNO(filename) {
     let splitFilename = filename.split('_');
-    const baseFolder = splitFilename.slice(0,2).join('_');
-    const subfolder = splitFilename.slice(0,3).join('_');
+    const papyrusNumb = splitFilename[1];
+    const baseFolder = `PHerc_${papyrusNumb}`;
+    const subfolder = `PHerc_${papyrusNumb}_${splitFilename[0]}`;
 
     return {baseFolder, subfolder};
 }

src/common.js

@@ -86,6 +86,7 @@ Common.getParamsFromFolders = async function() {
             let files = await fs.promises.readdir(
                 `${process.env.IMAGES_DIR}/${p}/${tech}`
             );
+			files = files.filter(file => /(tiff?|jpe?g|jp2|bmp)/.test(file));
             if (files.length) {
                 techniques.push(tech.replace(/PHerc_\d+_/i, ''));
             }
@@ -114,7 +115,7 @@ Common.getImageList = async function (manifestId) {
 		`${process.env.IMAGES_DIR}/${baseFolder}/${folderName}`
 	);
 
-	files = files.filter(file => path.extname(file) !== '.csv');
+	files = files.filter(file => !/(c2r|copertina|camice|tit)/.test(file) && !file.startsWith('.'));
 
 	return files;
 }
@@ -149,9 +150,7 @@ Common.getImageSize = async function (imageId) {
 Common.getImageName = async function (canvas) {
     const images = await this.getImageList(canvas.resourceId);
 		
-	return images.filter(
-		i => i.includes(canvas.name)
-	)[0];
+	return images.filter(i => i.includes(canvas.name))[0];
 }
 /**
  * Create a canvas from an image filename
@@ -169,8 +168,8 @@ Common.createCanvas = async function (manifest, filename) {
 		hiroxnir: 1,
 		nir: 1,
 		hsi: 1,
-		do: 3,
-		dn: 3
+		do: 2,
+		dn: 2
 	};
 
 	const canvasName = filename.split('_')[namePos[manifest.technique]]
@@ -211,22 +210,19 @@ Common.createCanvas = async function (manifest, filename) {
 Common.populateCanvases = async function (manifest, images) {
 	const sequence = new Sequence(process.env.BASE_URL);
 	// There's only one sequence
+
 	sequence.generateID(manifest.resourceId, 0);
 
-	// Camice e copertina all'inizio per DN e DO
-	if (manifest.technique.startsWith('d')) {
-		images = [].concat(
-			images
-				.filter(i => i.includes('camice') || i.includes('copertina'))
-				.reverse(),
-			images
-				.filter(i => !i.includes('camice') && !i.includes('copertina'))
-		);
-	}
-
 	for (let img of images) {
-		let canvas = await this.createCanvas(manifest, img);
-		sequence.addCanvas(canvas);
+		// Skip failing images (TODO log error to file)
+		try {
+			let canvas = await this.createCanvas(manifest, img);
+			sequence.addCanvas(canvas);
+		} catch (error) {
+			console.error(error);
+			console.log(`\nAffected image: ${img}`);
+			continue;
+		}
 	}
 
 	manifest.addSequence(sequence);