export subtree to filesystem

package.json

@@ -28,6 +28,7 @@
     "ini": "^1.3.4",
     "request": "^2.83.0",
     "request-promise": "^4.2.2",
+    "rimraf": "^2.6.2",
     "scrypt": "^6.0.3",
     "serve-favicon": "~2.4.5",
     "session-file-store": "^1.1.2",

routes/api/export.js

@@ -0,0 +1,49 @@
+"use strict";
+
+const express = require('express');
+const router = express.Router();
+const rimraf = require('rimraf');
+const fs = require('fs');
+const sql = require('../../services/sql');
+const data_dir = require('../../services/data_dir');
+
+router.get('/:noteId/to/:directory', async (req, res, next) => {
+    const noteId = req.params.noteId;
+    const directory = req.params.directory.replace(/[^0-9a-zA-Z_-]/gi, '');
+
+    if (!fs.existsSync(data_dir.EXPORT_DIR)) {
+        fs.mkdirSync(data_dir.EXPORT_DIR);
+    }
+
+    const completeExportDir = data_dir.EXPORT_DIR + '/' + directory;
+
+    if (fs.existsSync(completeExportDir)) {
+        rimraf.sync(completeExportDir);
+    }
+
+    fs.mkdirSync(completeExportDir);
+
+    await exportNote(noteId, completeExportDir);
+
+    res.send({});
+});
+
+async function exportNote(noteId, dir) {
+    const note = await sql.getSingleResult("SELECT * FROM notes WHERE note_id = ?", [noteId]);
+
+    fs.writeFileSync(dir + '/' + note.note_title + '.html', note.note_text);
+
+    const children = await sql.getResults("SELECT * FROM notes_tree WHERE note_pid = ? AND is_deleted = 0", [noteId]);
+
+    if (children.length > 0) {
+        const childrenDir = dir + '/' + note.note_title;
+
+        fs.mkdirSync(childrenDir);
+
+        for (const child of children) {
+            await exportNote(child.note_id, childrenDir);
+        }
+    }
+}
+
+module.exports = router;

routes/routes.js

@@ -17,6 +17,7 @@ const loginApiRoute = require('./api/login');
 const eventLogRoute = require('./api/event_log');
 const recentNotesRoute = require('./api/recent_notes');
 const appInfoRoute = require('./api/app_info');
+const exportRoute = require('./api/export');
 
 function register(app) {
     app.use('/', indexRoute);
@@ -37,6 +38,7 @@ function register(app) {
     app.use('/api/event-log', eventLogRoute);
     app.use('/api/recent-notes', recentNotesRoute);
     app.use('/api/app-info', appInfoRoute);
+    app.use('/api/export', exportRoute);
 }
 
 module.exports = {

services/data_dir.js

@@ -12,10 +12,12 @@ if (!fs.existsSync(TRILIUM_DATA_DIR)) {
 const DOCUMENT_PATH = TRILIUM_DATA_DIR + "/document.db";
 const BACKUP_DIR = TRILIUM_DATA_DIR + "/backup";
 const LOG_DIR = TRILIUM_DATA_DIR + "/log";
+const EXPORT_DIR = TRILIUM_DATA_DIR + "/export";
 
 module.exports = {
     TRILIUM_DATA_DIR,
     DOCUMENT_PATH,
     BACKUP_DIR,
-    LOG_DIR
+    LOG_DIR,
+    EXPORT_DIR
 };