Added creation and fetching of directories and files

src/cdn.js

@@ -1,5 +1,5 @@
 import { rmSync } from 'fs';
-import { copyFile, mkdir } from 'fs/promises';
+import { copyFile, mkdir, readdir } from 'fs/promises';
 import { Collection, Db, ObjectId } from 'mongodb';
 import multer from 'multer';
 
@@ -11,6 +11,10 @@ const upload = multer({ dest: dataPath });
  */
 let ressources;
 
+function buildPath(userid, path) {
+    return `${dataPath}/${userid}${path}`;
+}
+
 /**
  *
  * @param {*} app
@@ -20,6 +24,8 @@ export function initCdn(app, db) {
     ressources = db.collection('ressources');
     app.post('/upload', upload.single('file'), uploadFile);
     app.get('/cdn/:userid/:resid', fetchFile);
+    app.post('/directory', fetchDirectory);
+    app.put('/directory', addDirectory);
 }
 
 /**
@@ -37,7 +43,7 @@ function uploadFile(req, res, next) {
     const path = req.body.path;
 
     if (path !== undefined && path.startsWith('/') && !path.includes('.')) {
-        let destinationPath = `${dataPath}/${req.user._id}${req.body.path}`;
+        let destinationPath = buildPath(req.user._id, req.body.path);
         mkdir(destinationPath, {
             recursive: true,
         })
@@ -89,3 +95,66 @@ async function fetchFile(req, res) {
         res.sendStatus(404);
     }
 }
+
+/**
+ *
+ * @param {import('express').Request} req
+ * @param {import('express').Response} res
+ */
+async function fetchDirectory(req, res) {
+    if (!req.body) {
+        res.sendStatus(400);
+        return;
+    }
+    const path = req.body.path;
+    if (!path) {
+        res.sendStatus(400);
+        return;
+    }
+
+    const files = ressources.find({
+        path,
+    });
+
+    readdir(buildPath(req.user._id, path), {
+        withFileTypes: true,
+    })
+        .then(async (value) => {
+            let directories = value
+                .filter((dir) => dir.isDirectory())
+                .map((dir) => {
+                    return {
+                        name: dir.name,
+                        isDir: true,
+                    };
+                });
+
+            res.status(200).send([...directories, ...(await files.toArray())]);
+        })
+        .catch(async (err) => {
+            console.error(err);
+            res.status(200).send(await files.toArray());
+        });
+}
+
+async function addDirectory(req, res) {
+    if (!req.body) {
+        res.sendStatus(400);
+        return;
+    }
+    const name = req.body.name;
+    const path = req.body.path;
+    if (!name || !path || !/^[a-zA-Z0-9-_]+$/.test(name)) {
+        res.sendStatus(400);
+        return;
+    }
+
+    mkdir(buildPath(req.user._id, path + '/' + name))
+        .then(() => {
+            res.sendStatus(200);
+        })
+        .catch((err) => {
+            console.error(err);
+            res.sendStatus(500);
+        });
+}