feat(server): s3 presigned url (#11364)

packages/backend/server/src/plugins/copilot/controller.ts

@@ -602,7 +602,17 @@ export class CopilotController implements BeforeApplicationShutdown {
     @Param('workspaceId') workspaceId: string,
     @Param('key') key: string
   ) {
-    const { body, metadata } = await this.storage.get(userId, workspaceId, key);
+    const { body, metadata, redirectUrl } = await this.storage.get(
+      userId,
+      workspaceId,
+      key,
+      true
+    );
+
+    if (redirectUrl) {
+      // redirect to signed url
+      return res.redirect(redirectUrl);
+    }
 
     if (!body) {
       throw new BlobNotFound({

packages/backend/server/src/plugins/copilot/storage.ts

@@ -56,8 +56,13 @@ export class CopilotStorage {
   }
 
   @CallMetric('ai', 'blob_get')
-  async get(userId: string, workspaceId: string, key: string) {
-    return this.provider.get(`${userId}/${workspaceId}/${key}`);
+  async get(
+    userId: string,
+    workspaceId: string,
+    key: string,
+    signedUrl?: boolean
+  ) {
+    return this.provider.get(`${userId}/${workspaceId}/${key}`, signedUrl);
   }
 
   @CallMetric('ai', 'blob_delete')