initial scrapbook implementation

zefie_wtvp_minisrv/includes/ServiceVault/wtv-tricks/view-scrapbook-image.js

@@ -0,0 +1,35 @@
+var minisrv_service_file = true;
+var request_is_async = true;
+
+function handleError(reason) {
+    var errpage = wtvshared.doErrorPage(400, reason);
+    sendToClient(socket,  errpage[0], errpage[1]);
+}
+
+async function handleImage() {
+    if (!request_headers.query.id) {
+        handleError('No image ID specified');
+    } else {
+        data = session_data.pagestore.getScrapbookImage(request_headers.query.id);
+        if (!data) {
+            handleError('Image not found');
+        } else {
+            try {
+                if (request_headers.query.width) {
+                    // Scale the image to the specified width without losing aspect ratio, without using wtvshared
+                    const width = parseInt(request_headers.query.width, 10);
+                    data = await sharp(data).resize({ width, withoutEnlargement: true }).toBuffer();
+                }
+                headers = `200 OK
+Content-Type: ${session_data.pagestore.getScrapbookImageType(request_headers.query.id)}
+Content-Length: ${data.length}`
+                sendToClient(socket, headers, data);
+            } catch (error) {
+                handleError('Error processing image');
+                console.error('Image processing error:', error);
+            }
+        }
+    }
+}
+
+handleImage();