Merge pull request #140 from wchaws/dev2

feat: add strip-metadata action api

Author: wchaws

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

@@ -19,6 +19,7 @@ import { ResizeAction } from './resize';
 import { RotateAction } from './rotate';
 import { RoundedCornersAction } from './rounded-corners';
 import { SharpenAction } from './sharpen';
+import { StripMetadataAction } from './strip-metadata';
 import { WatermarkAction } from './watermark';
 
 export interface IImageInfo {
@@ -194,6 +195,7 @@ ImageProcessor.getInstance().register(
   new WatermarkAction(),
   new InfoAction(),
   new CgifAction(),
+  new StripMetadataAction(),
 );
 
 

source/new-image-handler/src/processor/image/strip-metadata.ts

@@ -0,0 +1,13 @@
+import { ReadOnly, IActionOpts, IProcessContext } from '..';
+import { BaseImageAction } from './_base';
+
+export class StripMetadataAction extends BaseImageAction {
+  public readonly name: string = 'strip-metadata';
+
+  validate(_: string[]): ReadOnly<IActionOpts> {
+    return {};
+  }
+  process(_1: IProcessContext, _2: string[]): Promise<void> {
+    return Promise.resolve();
+  }
+}

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

@@ -238,6 +238,15 @@ test('f.jpg?x-oss-process=image/resize,w_100/auto-orient,0', async () => {
   expect(ctx.headers['Last-Modified']).toBe('fake-last-modified');
 });
 
+test('f.jpg?x-oss-process=image/strip-metadata', async () => {
+  const ctx = await ImageProcessor.getInstance().newContext('f.jpg', 'image/strip-metadata'.split('/'), fixtureStore);
+  const { data } = await ImageProcessor.getInstance().process(ctx);
+  const metadata = await sharp(data).metadata();
+
+  expect(ctx.metadata.exif).not.toBeUndefined();
+  expect(metadata.exif).toBeUndefined();
+});
+
 test('f.jpg?x-oss-process=image/resize,w_100/auto-orient,1', async () => {
   const ctx = await ImageProcessor.getInstance().newContext('f.jpg', 'image/resize,w_100/auto-orient,1'.split('/'), fixtureStore);
   const { data, type } = await ImageProcessor.getInstance().process(ctx);