single file export working, tar WIP

src/services/export/single.js

@@ -0,0 +1,57 @@
+"use strict";
+
+const sanitize = require("sanitize-filename");
+const TurndownService = require('turndown');
+const mimeTypes = require('mime-types');
+const html = require('html');
+
+async function exportSingleNote(branch, format, res) {
+    const note = await branch.getNote();
+
+    if (note.type === 'image' || note.type === 'file') {
+        return [400, `Note type ${note.type} cannot be exported as single file.`];
+    }
+
+    if (format !== 'html' && format !== 'markdown') {
+        return [400, 'Unrecognized format ' + format];
+    }
+
+    let payload, extension, mime;
+
+    if (note.type === 'text') {
+        if (format === 'html') {
+            payload = html.prettyPrint(note.content, {indent_size: 2});
+            extension = 'html';
+            mime = 'text/html';
+        }
+        else if (format === 'markdown') {
+            const turndownService = new TurndownService();
+            payload = turndownService.turndown(note.content);
+            extension = 'md';
+            mime = 'text/markdown'
+        }
+    }
+    else if (note.type === 'code') {
+        payload = note.content;
+        extension = mimeTypes.extension(note.mime) || 'code';
+        mime = note.mime;
+    }
+    else if (note.type === 'relation-map' || note.type === 'search') {
+        payload = note.content;
+        extension = 'json';
+        mime = 'application/json';
+    }
+
+    const name = sanitize(note.title);
+
+    console.log(name, extension, mime);
+
+    res.setHeader('Content-Disposition', `file; filename="${name}.${extension}"`);
+    res.setHeader('Content-Type', mime + '; charset=UTF-8');
+
+    res.send(payload);
+}
+
+module.exports = {
+    exportSingleNote
+};