zulip/zerver/lib/widget.py

81 lines
2.5 KiB
Python

from typing import MutableMapping, Any, Optional, List, Tuple
from django.conf import settings
import re
import json
from zerver.models import SubMessage
def do_widget_pre_save_actions(message: MutableMapping[str, Any]) -> None:
if not settings.ALLOW_SUB_MESSAGES:
return
content = message['message'].content
if content == '/stats':
message['message'].content = 'We are running **1 server**.'
return
def get_widget_data(content: str) -> Tuple[Optional[str], Optional[str]]:
valid_widget_types = ['tictactoe', 'poll', 'todo']
tokens = content.split(' ')
if not tokens:
return None, None
if tokens[0].startswith('/'):
widget_type = tokens[0][1:]
if widget_type in valid_widget_types:
extra_data = get_extra_data_from_widget_type(tokens, widget_type)
return widget_type, extra_data
return None, None
def get_extra_data_from_widget_type(tokens: List[str],
widget_type: Optional[str]) -> Any:
if widget_type == 'poll':
# This is used to extract the question from the poll command.
# The command '/poll question' will pre-set the question in the poll
question = ' '.join(tokens[1:])
if not question:
question = ''
extra_data = {'question': question}
return extra_data
return None
def do_widget_post_save_actions(message: MutableMapping[str, Any]) -> None:
'''
This is experimental code that only works with the
webapp for now.
'''
if not settings.ALLOW_SUB_MESSAGES:
return
content = message['message'].content
sender_id = message['message'].sender_id
message_id = message['message'].id
widget_type = None
extra_data = None
widget_type, extra_data = get_widget_data(content)
widget_content = message.get('widget_content')
if widget_content is not None:
# Note that we validate this data in check_message,
# so we can trust it here.
widget_type = widget_content['widget_type']
extra_data = widget_content['extra_data']
if widget_type:
content = dict(
widget_type=widget_type,
extra_data=extra_data
)
submessage = SubMessage(
sender_id=sender_id,
message_id=message_id,
msg_type='widget',
content=json.dumps(content),
)
submessage.save()
message['submessages'] = SubMessage.get_raw_db_rows([message_id])