zulip/zerver/webhooks/beanstalk/view.py

117 lines
4.2 KiB
Python

# Webhooks for external integrations.
import base64
import re
from functools import wraps
from typing import Any, Dict, List, Optional, Tuple, cast
from django.http import HttpRequest, HttpResponse
from zerver.decorator import authenticated_rest_api_view
from zerver.lib.request import REQ, has_request_variables
from zerver.lib.response import json_success
from zerver.lib.types import ViewFuncT
from zerver.lib.validator import check_dict
from zerver.lib.webhooks.common import check_send_webhook_message
from zerver.lib.webhooks.git import TOPIC_WITH_BRANCH_TEMPLATE, get_push_commits_event_message
from zerver.models import UserProfile
def build_message_from_gitlog(
user_profile: UserProfile,
name: str,
ref: str,
commits: List[Dict[str, str]],
before: str,
after: str,
url: str,
pusher: str,
forced: Optional[str] = None,
created: Optional[str] = None,
deleted: bool = False,
) -> Tuple[str, str]:
short_ref = re.sub(r"^refs/heads/", "", ref)
subject = TOPIC_WITH_BRANCH_TEMPLATE.format(repo=name, branch=short_ref)
commits = _transform_commits_list_to_common_format(commits)
content = get_push_commits_event_message(pusher, url, short_ref, commits, deleted=deleted)
return subject, content
def _transform_commits_list_to_common_format(commits: List[Dict[str, Any]]) -> List[Dict[str, str]]:
new_commits_list = []
for commit in commits:
new_commits_list.append(
{
"name": commit["author"].get("username"),
"sha": commit.get("id"),
"url": commit.get("url"),
"message": commit.get("message"),
}
)
return new_commits_list
# Beanstalk's web hook UI rejects URL with a @ in the username section
# So we ask the user to replace them with %40
# We manually fix the username here before passing it along to @authenticated_rest_api_view
def beanstalk_decoder(view_func: ViewFuncT) -> ViewFuncT:
@wraps(view_func)
def _wrapped_view_func(request: HttpRequest, *args: object, **kwargs: object) -> HttpResponse:
auth_type: str
encoded_value: str
auth_type, encoded_value = request.META["HTTP_AUTHORIZATION"].split()
if auth_type.lower() == "basic":
email, api_key = base64.b64decode(encoded_value).decode().split(":")
email = email.replace("%40", "@")
credentials = f"{email}:{api_key}"
encoded_credentials: str = base64.b64encode(credentials.encode()).decode()
request.META["HTTP_AUTHORIZATION"] = "Basic " + encoded_credentials
return view_func(request, *args, **kwargs)
return cast(ViewFuncT, _wrapped_view_func) # https://github.com/python/mypy/issues/1927
@beanstalk_decoder
@authenticated_rest_api_view(webhook_client_name="Beanstalk")
@has_request_variables
def api_beanstalk_webhook(
request: HttpRequest,
user_profile: UserProfile,
payload: Dict[str, Any] = REQ(json_validator=check_dict([])),
branches: Optional[str] = REQ(default=None),
) -> HttpResponse:
# Beanstalk supports both SVN and Git repositories
# We distinguish between the two by checking for a
# 'uri' key that is only present for Git repos
git_repo = "uri" in payload
if git_repo:
if branches is not None and branches.find(payload["branch"]) == -1:
return json_success(request)
# To get a linkable url,
for commit in payload["commits"]:
commit["author"] = {"username": commit["author"]["name"]}
subject, content = build_message_from_gitlog(
user_profile,
payload["repository"]["name"],
payload["ref"],
payload["commits"],
payload["before"],
payload["after"],
payload["repository"]["url"],
payload["pusher_name"],
)
else:
author = payload.get("author_full_name")
url = payload.get("changeset_url")
revision = payload.get("revision")
(short_commit_msg, _, _) = payload["message"].partition("\n")
subject = f"svn r{revision}"
content = f"{author} pushed [revision {revision}]({url}):\n\n> {short_commit_msg}"
check_send_webhook_message(request, user_profile, subject, content)
return json_success(request)