Download attachments with original filenames

packages/server/src/api/controllers/Attachments/AttachmentsController.ts

@@ -250,10 +250,12 @@ export class AttachmentsController extends BaseController {
     res: Response,
     next: NextFunction
   ): Promise<Response | void> {
+    const { tenantId } = req;
     const { id: documentKey } = req.params;
 
     try {
       const presignedUrl = await this.attachmentsApplication.getPresignedUrl(
+        tenantId,
         documentKey
       );
       return res.status(200).send({ presignedUrl });

packages/server/src/services/Attachments/AttachmentsApplication.ts

@@ -96,10 +96,11 @@ export class AttachmentsApplication {
 
   /**
    * Retrieves the presigned url of the given attachment key.
+   * @param {number} tenantId
    * @param {string} key
    * @returns {Promise<string>}
    */
-  public getPresignedUrl(key: string): Promise<string> {
-    return this.getPresignedUrlService.getPresignedUrl(key);
+  public getPresignedUrl(tenantId: number, key: string): Promise<string> {
+    return this.getPresignedUrlService.getPresignedUrl(tenantId, key);
   }
 }

packages/server/src/services/Attachments/GetAttachmentPresignedUrl.ts

@@ -1,20 +1,34 @@
-import { Service } from 'typedi';
+import { Inject, Service } from 'typedi';
 import { GetObjectCommand } from '@aws-sdk/client-s3';
 import { getSignedUrl } from '@aws-sdk/s3-request-presigner';
 import { s3 } from '@/lib/S3/S3';
 import config from '@/config';
+import HasTenancyService from '../Tenancy/TenancyService';
 
 @Service()
 export class getAttachmentPresignedUrl {
+  @Inject()
+  private tenancy: HasTenancyService;
+
   /**
-   * Retrieves the presigned url of the given attachment key.
+   * Retrieves the presigned url of the given attachment key with the original filename.
+   * @param {number} tenantId
    * @param {string} key
-   * @returns {Promise<string?>}
+   * @returns {string}
    */
-  async getPresignedUrl(key: string) {
+  async getPresignedUrl(tenantId: number, key: string) {
+    const { Document } = this.tenancy.models(tenantId);
+    const foundDocument = await Document.query().findOne({ key });
+
+    let ResponseContentDisposition = 'attachment';
+    if (foundDocument && foundDocument.originName) {
+      ResponseContentDisposition += `; filename="${foundDocument.originName}"`;
+    }
+
     const command = new GetObjectCommand({
       Bucket: config.s3.bucket,
       Key: key,
+      ResponseContentDisposition,
     });
     const signedUrl = await getSignedUrl(s3, command, { expiresIn: 300 });