mirror of
https://github.com/zulip/zulip.git
synced 2025-11-16 03:41:58 +00:00
365fe0b3d5
Fixes #2665. Regenerated by tabbott with `lint --fix` after a rebase and change in parameters. Note from tabbott: In a few cases, this converts technical debt in the form of unsorted imports into different technical debt in the form of our largest files having very long, ugly import sequences at the start. I expect this change will increase pressure for us to split those files, which isn't a bad thing. Signed-off-by: Anders Kaseorg <anders@zulip.com>
101 lines
3.8 KiB
Python
101 lines
3.8 KiB
Python
# Webhooks for external integrations.
|
|
import re
|
|
from typing import Any, Dict, Optional
|
|
|
|
import ujson
|
|
from django.http import HttpRequest, HttpResponse
|
|
from django.utils.translation import ugettext as _
|
|
|
|
from zerver.decorator import api_key_only_webhook_view
|
|
from zerver.lib.exceptions import InvalidJSONError
|
|
from zerver.lib.request import REQ, has_request_variables
|
|
from zerver.lib.response import json_success
|
|
from zerver.lib.webhooks.common import check_send_webhook_message
|
|
from zerver.models import UserProfile
|
|
|
|
|
|
@api_key_only_webhook_view('SlackIncoming')
|
|
@has_request_variables
|
|
def api_slack_incoming_webhook(request: HttpRequest, user_profile: UserProfile,
|
|
user_specified_topic: Optional[str]=REQ("topic", default=None),
|
|
payload: Optional[Dict[str, Any]] = REQ(
|
|
'payload',
|
|
converter=ujson.loads,
|
|
default=None)) -> HttpResponse:
|
|
|
|
# Slack accepts webhook payloads as payload="encoded json" as
|
|
# application/x-www-form-urlencoded, as well as in the body as
|
|
# application/json. We use has_request_variables to try to get
|
|
# the form encoded version, and parse the body out ourselves if
|
|
# # we were given JSON.
|
|
if payload is None:
|
|
try:
|
|
payload = ujson.loads(request.body)
|
|
except ValueError: # nocoverage
|
|
raise InvalidJSONError(_("Malformed JSON"))
|
|
|
|
if user_specified_topic is None and "channel" in payload:
|
|
user_specified_topic = re.sub("^[@#]", "", payload["channel"])
|
|
|
|
if user_specified_topic is None:
|
|
user_specified_topic = "(no topic)"
|
|
|
|
body = ""
|
|
|
|
if "blocks" in payload:
|
|
for block in payload["blocks"]:
|
|
body = add_block(block, body)
|
|
|
|
if "attachments" in payload:
|
|
for attachment in payload["attachments"]:
|
|
body = add_attachment(attachment, body)
|
|
|
|
if body == "" and "text" in payload:
|
|
body += payload["text"]
|
|
if "icon_emoji" in payload and payload["icon_emoji"] is not None:
|
|
body = "{} {}".format(payload["icon_emoji"], body)
|
|
|
|
if body != "":
|
|
body = replace_formatting(replace_links(body).strip())
|
|
check_send_webhook_message(request, user_profile, user_specified_topic, body)
|
|
return json_success()
|
|
|
|
|
|
def add_block(block: Dict[str, Any], body: str) -> str:
|
|
block_type = block.get("type", None)
|
|
if block_type == "section":
|
|
if "text" in block:
|
|
text = block["text"]
|
|
while type(text) == dict: # handle stuff like block["text"]["text"]
|
|
text = text["text"]
|
|
body += f"\n\n{text}"
|
|
|
|
if "accessory" in block:
|
|
accessory = block["accessory"]
|
|
accessory_type = accessory["type"]
|
|
if accessory_type == "image":
|
|
# This should become  once proper Markdown images are supported
|
|
body += "\n[{alt_text}]({image_url})".format(**accessory)
|
|
|
|
return body
|
|
|
|
def add_attachment(attachment: Dict[str, Any], body: str) -> str:
|
|
attachment_body = ""
|
|
if "title" in attachment and "title_link" in attachment:
|
|
attachment_body += "[{title}]({title_link})\n".format(**attachment)
|
|
if "text" in attachment:
|
|
attachment_body += attachment["text"]
|
|
|
|
return body + attachment_body
|
|
|
|
def replace_links(text: str) -> str:
|
|
return re.sub(r"<(\w+?:\/\/.*?)\|(.*?)>", r"[\2](\1)", text)
|
|
|
|
def replace_formatting(text: str) -> str:
|
|
# Slack uses *text* for bold, whereas Zulip interprets that as italics
|
|
text = re.sub(r'([^\w])\*(?!\s+)([^\*^\n]+)(?<!\s)\*([^\w])', r"\1**\2**\3", text)
|
|
|
|
# Slack uses _text_ for emphasis, whereas Zulip interprets that as nothing
|
|
text = re.sub(r"([^\w])[_](?!\s+)([^\_\^\n]+)(?<!\s)[_]([^\w])", r"\1**\2**\3", text)
|
|
return text
|