fix: missing bucket name for cache key

Author: wchaws

source/new-image-handler/.dockerignore

@@ -5,4 +5,5 @@ Dockerfile*
 node_modules
 coverage
 test-reports
-**/*.md
+**/*.md
+**/*.bin

source/new-image-handler/src/index.ts

@@ -39,6 +39,9 @@ app.use(errorHandler());
 app.use(bodyParser());
 app.use(koaCash({
   setCachedHeader: true,
+  hash(ctx) {
+    return ctx.headers['x-bucket'] + ctx.request.url;
+  },
   get: (key) => {
     return Promise.resolve(lruCache.get(key));
   },

source/new-image-handler/src/store.ts

@@ -46,8 +46,8 @@ export class LocalStore implements IBufferStore {
       type: filetype(p),
       headers: {
         'Etag': 'fake-etag',
-        'Last-Modified': 'fake-last-modified',
-        'Cache-Control': 'no-cache',
+        'Last-Modified': 'Wed, 21 Oct 2014 07:28:00 GMT',
+        'Cache-Control': 'max-age',
       },
     };
   }
@@ -72,14 +72,14 @@ export class S3Store implements IBufferStore {
     }).promise();
 
     if (Buffer.isBuffer(res.Body)) {
+      const headers: IHttpHeaders = {};
+      if (res.ETag) { headers.Etag = res.ETag; }
+      if (res.LastModified) { headers['Last-Modified'] = res.LastModified; }
+      if (res.CacheControl) { headers['Cache-Control'] = res.CacheControl; }
       return {
         buffer: res.Body as Buffer,
         type: res.ContentType ?? '',
-        headers: {
-          'Etag': res.ETag,
-          'Last-Modified': res.LastModified,
-          'Cache-Control': res.CacheControl,
-        },
+        headers,
       };
     };
     throw new Error('S3 response body is not a Buffer type');

source/new-image-handler/test/index-lambda.test.ts

@@ -73,8 +73,8 @@ test('index-lambda.ts example.jpg?x-oss-process=image/resize,w_100/quality,q_50'
   expect(res.isBase64Encoded).toBeTruthy();
   expect(res.statusCode).toBe(200);
   expect(res.headers['Content-Type']).toBe('image/jpeg');
-  expect(res.headers['Last-Modified']).toBe('fake-last-modified');
-  expect(res.headers['Cache-Control']).toBe('no-cache');
+  expect(res.headers['Last-Modified']).toBe('Wed, 21 Oct 2014 07:28:00 GMT');
+  expect(res.headers['Cache-Control']).toBe('max-age');
 
   const metadata = await sharp(Buffer.from(res.body, 'base64')).metadata();
 

source/new-image-handler/test/processor/index.test.ts

@@ -255,7 +255,7 @@ test('f.jpg?x-oss-process=image/resize,w_100/auto-orient,0', async () => {
   expect(type).toBe('image/jpeg');
   expect(metadata.width).toBe(100);
   expect(metadata.height).toBe(78);
-  expect(ctx.headers['Last-Modified']).toBe('fake-last-modified');
+  expect(ctx.headers['Last-Modified']).toBe('Wed, 21 Oct 2014 07:28:00 GMT');
 });
 
 test('f.jpg?x-oss-process=image/strip-metadata', async () => {