add content type for s3

bots/modules/robot.py

@@ -4,6 +4,7 @@ import time
 from tempfile import TemporaryDirectory
 
 import boto3
+import filetype
 from django.db import models
 from telegram import Update, InlineKeyboardMarkup, InlineKeyboardButton
 from telegram.ext import CallbackContext, Dispatcher, MessageHandler, Filters
@@ -47,8 +48,9 @@ class RobotBotModuleConfig(TelegramBotModuleConfig):
         with TemporaryDirectory() as d:
             file_path = os.path.join(d, filename)
             file.download(file_path)
+            tp = filetype.guess(file_path)
             s3 = boto3.client('s3', aws_access_key_id=config.aws_access_key_id, aws_secret_access_key=config.aws_secret_access_key)
-            s3.upload_file(file_path, config.s3_bucket, filename, ExtraArgs={'ACL': 'public-read'})
+            s3.upload_file(file_path, config.s3_bucket, filename, ExtraArgs={'ACL': 'public-read', 'ContentType': tp.mime})
         file_url = f'https://{config.s3_bucket}.s3.amazonaws.com/{filename}'
         if update.message.photo:
             markup.inline_keyboard = [[