def process_file(update: Update, context: CallbackContext):
'''Accept a file from a user and set up a print job.'''
if not context.user_data.get('authenticated', False):
update.message.reply_text(
'I will not fulfill your request until you prove your worth.\n'
'Scan the QR code above the student printer on the 5th floor')
return
if update.message.document.file_size > MAX_DOWNLOAD_SIZE:
update.message.reply_text(
f'Sorry, I only work with files up to {MAX_DOWNLOAD_SIZE_MB} MB')
return
file = update.message.document.get_file()
container = NamedTemporaryFile()
file.download(out=container)
container.original_name = update.message.document.file_name
converted = convert_to_pdf(container, update.message.document.mime_type)
job = PrintJob(container,
converted,
update.message.caption,
toner_save=context.user_data.get('toner_save', True))
context.bot_data.setdefault('jobs', {})[job.id] = job
job.status_message = update.message.reply_text(
job.get_message_text(),
parse_mode=ParseMode.HTML,
reply_to_message_id=update.message.message_id,
reply_markup=job.get_keyboard(),
)
