zulip/zerver/webhooks/appfollow/view.py

44 lines
1.4 KiB
Python

# Webhooks for external integrations.
import re
from django.http import HttpRequest, HttpResponse
from zerver.decorator import webhook_view
from zerver.lib.response import json_success
from zerver.lib.typed_endpoint import JsonBodyPayload, typed_endpoint
from zerver.lib.validator import WildValue, check_string
from zerver.lib.webhooks.common import check_send_webhook_message
from zerver.models import UserProfile
@webhook_view("AppFollow")
@typed_endpoint
def api_appfollow_webhook(
request: HttpRequest,
user_profile: UserProfile,
*,
payload: JsonBodyPayload[WildValue],
) -> HttpResponse:
message = payload["text"].tame(check_string)
app_name_search = re.search(r"\A(.+)", message)
assert app_name_search is not None
app_name = app_name_search.group(0)
topic_name = app_name
check_send_webhook_message(request, user_profile, topic_name, body=convert_markdown(message))
return json_success(request)
def convert_markdown(text: str) -> str:
# Converts Slack-style Markdown to Zulip format
# Implemented mainly for AppFollow messages
# Not ready for general use as some edge-cases not handled
# Convert bold
text = re.sub(r"(?:(?<=\s)|(?<=^))\*(.+?\S)\*(?=\s|$)", r"**\1**", text)
# Convert italics
text = re.sub(r"\b_(\s*)(.+?)(\s*)_\b", r"\1*\2*\3", text)
# Convert strikethrough
text = re.sub(r"(?:(?<=\s)|(?<=^))~(.+?\S)~(?=\s|$)", r"~~\1~~", text)
return text