Implement File Sharing

[mohit-nagaraj]

Description

Implement a feature that allows users to share files within the chat application. This feature should support various file types and ensure secure file transfer.

Tasks

1. Frontend Changes

   • Add a file upload button to the chat interface.
   • Display uploaded files in the chat window.
   • Handle file previews for common file types (images, PDFs).

2. Backend Changes

   • Create an endpoint to handle file uploads.
   • Store uploaded files securely on the server.
   • Update the message schema to include file metadata (e.g., file name, file type, file URL).

3. Security

   • Validate file types and sizes before uploading.
   • Ensure secure storage and access to uploaded files.
   • Implement virus scanning for uploaded files.

4. Testing

   • Write unit tests for the new backend endpoints.
   • Perform integration testing to ensure files are uploaded and displayed correctly.

Acceptance Criteria

• Users can upload and share files within the chat.
• Uploaded files are displayed correctly in the chat window.
• File uploads are secure and validated.
• All new code is covered by tests.