Initial commit for Greenlens

server/lib/storage.js

@@ -0,0 +1,72 @@
+const Minio = require('minio');
+const crypto = require('crypto');
+
+const getTrimmedEnv = (name, fallback = '') => String(process.env[name] ?? fallback).trim();
+
+const MINIO_ENDPOINT = getTrimmedEnv('MINIO_ENDPOINT');
+const MINIO_PORT = Number(process.env.MINIO_PORT || 9000);
+const MINIO_USE_SSL = process.env.MINIO_USE_SSL === 'true';
+const MINIO_ACCESS_KEY = getTrimmedEnv('MINIO_ACCESS_KEY');
+const MINIO_SECRET_KEY = getTrimmedEnv('MINIO_SECRET_KEY');
+const MINIO_BUCKET = getTrimmedEnv('MINIO_BUCKET', 'plant-images') || 'plant-images';
+
+const isStorageConfigured = () => Boolean(MINIO_ENDPOINT && MINIO_ACCESS_KEY && MINIO_SECRET_KEY);
+
+const getMinioPublicUrl = () =>
+  getTrimmedEnv('MINIO_PUBLIC_URL', `http://${MINIO_ENDPOINT}:${MINIO_PORT}`).replace(/\/$/, '');
+
+const getClient = () => {
+  if (!isStorageConfigured()) {
+    throw new Error('Image storage is not configured.');
+  }
+
+  return new Minio.Client({
+    endPoint: MINIO_ENDPOINT,
+    port: MINIO_PORT,
+    useSSL: MINIO_USE_SSL,
+    accessKey: MINIO_ACCESS_KEY,
+    secretKey: MINIO_SECRET_KEY,
+  });
+};
+
+const ensureStorageBucket = async () => {
+  const client = getClient();
+  const exists = await client.bucketExists(MINIO_BUCKET);
+  if (!exists) {
+    await client.makeBucket(MINIO_BUCKET);
+    const policy = JSON.stringify({
+      Version: '2012-10-17',
+      Statement: [
+        {
+          Effect: 'Allow',
+          Principal: { AWS: ['*'] },
+          Action: ['s3:GetObject'],
+          Resource: [`arn:aws:s3:::${MINIO_BUCKET}/*`],
+        },
+      ],
+    });
+    await client.setBucketPolicy(MINIO_BUCKET, policy);
+    console.log(`MinIO bucket '${MINIO_BUCKET}' created with public read policy.`);
+  }
+};
+
+const uploadImage = async (base64Data, contentType = 'image/jpeg') => {
+  const client = getClient();
+  const rawExtension = contentType.split('/')[1] || 'jpg';
+  const extension = rawExtension === 'jpeg' ? 'jpg' : rawExtension;
+  const filename = `${Date.now()}-${crypto.randomBytes(8).toString('hex')}.${extension}`;
+  const buffer = Buffer.from(base64Data, 'base64');
+
+  await client.putObject(MINIO_BUCKET, filename, buffer, buffer.length, {
+    'Content-Type': contentType,
+  });
+
+  const url = `${getMinioPublicUrl()}/${MINIO_BUCKET}/${filename}`;
+  return { url, filename };
+};
+
+module.exports = {
+  ensureStorageBucket,
+  uploadImage,
+  isStorageConfigured,
+};