do not overwrite attachment name on sending side

Relates #1593

ts/models/message.ts

@@ -19,7 +19,6 @@ import {
 import autoBind from 'auto-bind';
 import { saveMessage } from '../../ts/data/data';
 import { ConversationModel, ConversationTypeEnum } from './conversation';
-import { getSuggestedFilenameSending } from '../types/Attachment';
 import { actions as conversationActions } from '../state/ducks/conversations';
 import { VisibleMessage } from '../session/messages/outgoing/visibleMessage/VisibleMessage';
 import { buildSyncMessage } from '../session/utils/syncUtils';
@@ -742,15 +741,7 @@ export class MessageModel extends Backbone.Model<MessageAttributes> {
       (this.get('attachments') || []).map(window.Signal.Migrations.loadAttachmentData)
     );
     const body = this.get('body');
-    const finalAttachments = attachmentsWithData;
-
-    const filenameOverridenAttachments = finalAttachments.map((attachment: any) => ({
-      ...attachment,
-      fileName: getSuggestedFilenameSending({
-        attachment,
-        timestamp: Date.now(),
-      }),
-    }));
+    const finalAttachments = attachmentsWithData as Array<any>;
 
     const quoteWithData = await window.Signal.Migrations.loadQuoteData(this.get('quote'));
     const previewWithData = await window.Signal.Migrations.loadPreviewData(this.get('preview'));
@@ -765,7 +756,7 @@ export class MessageModel extends Backbone.Model<MessageAttributes> {
     // we want to go for the v1, if this is an OpenGroupV1 or not an open group at all
     if (conversation?.isOpenGroupV2()) {
       const openGroupV2 = conversation.toOpenGroupV2();
-      attachmentPromise = uploadAttachmentsV2(filenameOverridenAttachments, openGroupV2);
+      attachmentPromise = uploadAttachmentsV2(finalAttachments, openGroupV2);
       linkPreviewPromise = uploadLinkPreviewsV2(previewWithData, openGroupV2);
       quotePromise = uploadQuoteThumbnailsV2(openGroupV2, quoteWithData);
     } else {
@@ -774,7 +765,7 @@ export class MessageModel extends Backbone.Model<MessageAttributes> {
 
       const openGroupV1 = conversation?.isOpenGroupV1() ? conversation?.toOpenGroupV1() : undefined;
       attachmentPromise = AttachmentFsV2Utils.uploadAttachmentsToFsV2(
-        filenameOverridenAttachments,
+        finalAttachments,
         openGroupV1
       );
       linkPreviewPromise = AttachmentFsV2Utils.uploadLinkPreviewsToFsV2(

ts/types/Attachment.ts

@@ -346,22 +346,6 @@ export const getSuggestedFilename = ({
   return `${prefix}${suffix}${indexSuffix}${extension}`;
 };
 
-// Used for overriden the sent filename of an attachment, but keeping the file extension the same
-export const getSuggestedFilenameSending = ({
-  attachment,
-  timestamp,
-}: {
-  attachment: AttachmentType;
-  timestamp?: number | Date;
-}): string => {
-  const prefix = 'session-attachment';
-  const suffix = timestamp ? moment(timestamp).format('-YYYY-MM-DD-HHmmss') : '';
-  const fileType = getFileExtension(attachment);
-  const extension = fileType ? `.${fileType}` : '';
-
-  return `${prefix}${suffix}${extension}`;
-};
-
 export const getFileExtension = (attachment: AttachmentType): string | undefined => {
   // we override textplain to the extension of the file
   // for contenttype starting with application, the mimetype is probably wrong so just use the extension of the file instead