zulip/zerver/webhooks/azuredevops/view.py

188 lines
7.0 KiB
Python

from typing import Callable, Dict, Optional
from django.http import HttpRequest, HttpResponse
from zerver.decorator import webhook_view
from zerver.lib.exceptions import UnsupportedWebhookEventTypeError
from zerver.lib.request import REQ, has_request_variables
from zerver.lib.response import json_success
from zerver.lib.validator import WildValue, check_int, check_string, to_wild_value
from zerver.lib.webhooks.common import check_send_webhook_message
from zerver.lib.webhooks.git import (
TOPIC_WITH_BRANCH_TEMPLATE,
TOPIC_WITH_PR_OR_ISSUE_INFO_TEMPLATE,
get_pull_request_event_message,
get_push_commits_event_message,
)
from zerver.models import UserProfile
def get_code_pull_request_updated_body(payload: WildValue) -> str:
return get_pull_request_event_message(
get_code_pull_request_user_name(payload),
"updated",
get_code_pull_request_url(payload),
get_code_pull_request_id(payload),
message=payload["detailedMessage"]["markdown"].tame(check_string),
title=get_code_pull_request_title(payload),
)
def get_code_pull_request_merged_body(payload: WildValue) -> str:
return get_pull_request_event_message(
get_code_pull_request_user_name(payload),
"merged",
get_code_pull_request_url(payload),
get_code_pull_request_id(payload),
target_branch=payload["resource"]["sourceRefName"]
.tame(check_string)
.replace("refs/heads/", ""),
base_branch=payload["resource"]["targetRefName"]
.tame(check_string)
.replace("refs/heads/", ""),
title=get_code_pull_request_title(payload),
)
def get_code_pull_request_opened_body(payload: WildValue) -> str:
if payload["resource"].get("description"):
description = payload["resource"]["description"].tame(check_string)
else:
description = None
return get_pull_request_event_message(
get_code_pull_request_user_name(payload),
"created",
get_code_pull_request_url(payload),
get_code_pull_request_id(payload),
payload["resource"]["sourceRefName"].tame(check_string).replace("refs/heads/", ""),
payload["resource"]["targetRefName"].tame(check_string).replace("refs/heads/", ""),
description,
title=get_code_pull_request_title(payload),
)
def get_code_push_commits_body(payload: WildValue) -> str:
compare_url = "{}/branchCompare?baseVersion=GC{}&targetVersion=GC{}&_a=files".format(
get_code_repository_url(payload),
payload["resource"]["refUpdates"][0]["oldObjectId"].tame(check_string),
payload["resource"]["refUpdates"][0]["newObjectId"].tame(check_string),
)
commits_data = []
if payload["resource"].get("commits"):
for commit in payload["resource"]["commits"]:
commits_data.append(
{
"name": commit["author"]["name"].tame(check_string),
"sha": commit["commitId"].tame(check_string),
"url": "{}/commit/{}".format(
get_code_repository_url(payload), commit["commitId"].tame(check_string)
),
"message": commit["comment"].tame(check_string),
}
)
return get_push_commits_event_message(
get_code_push_user_name(payload),
compare_url,
get_code_push_branch_name(payload),
commits_data,
)
def get_code_push_user_name(payload: WildValue) -> str:
return payload["resource"]["pushedBy"]["displayName"].tame(check_string)
def get_code_push_branch_name(payload: WildValue) -> str:
return (
payload["resource"]["refUpdates"][0]["name"].tame(check_string).replace("refs/heads/", "")
)
def get_code_repository_name(payload: WildValue) -> str:
return payload["resource"]["repository"]["name"].tame(check_string)
def get_code_repository_url(payload: WildValue) -> str:
return payload["resource"]["repository"]["remoteUrl"].tame(check_string)
def get_code_pull_request_id(payload: WildValue) -> int:
return payload["resource"]["pullRequestId"].tame(check_int)
def get_code_pull_request_title(payload: WildValue) -> str:
return payload["resource"]["title"].tame(check_string)
def get_code_pull_request_url(payload: WildValue) -> str:
return payload["resource"]["_links"]["web"]["href"].tame(check_string)
def get_code_pull_request_user_name(payload: WildValue) -> str:
return payload["resource"]["createdBy"]["displayName"].tame(check_string)
def get_topic_based_on_event(payload: WildValue, event: str) -> str:
if event == "git.push":
return TOPIC_WITH_BRANCH_TEMPLATE.format(
repo=get_code_repository_name(payload), branch=get_code_push_branch_name(payload)
)
elif "pullrequest" in event:
return TOPIC_WITH_PR_OR_ISSUE_INFO_TEMPLATE.format(
repo=get_code_repository_name(payload),
type="PR",
id=get_code_pull_request_id(payload),
title=get_code_pull_request_title(payload),
)
return get_code_repository_name(payload) # nocoverage
def get_event_name(payload: WildValue, branches: Optional[str]) -> Optional[str]:
event_name = payload["eventType"].tame(check_string)
if event_name == "git.push" and branches is not None:
branch = get_code_push_branch_name(payload)
if branches.find(branch) == -1:
return None
if event_name == "git.pullrequest.merged":
status = payload["resource"]["status"].tame(check_string)
merge_status = payload["resource"]["mergeStatus"].tame(check_string)
# azure devops sends webhook messages when a merge is attempted, i.e. there is a merge conflict
# after a PR is created, or when there is no conflict when PR is updated
# we're only interested in the case when the PR is merged successfully
if status != "completed" or merge_status != "succeeded":
return None
if event_name in EVENT_FUNCTION_MAPPER:
return event_name
raise UnsupportedWebhookEventTypeError(event_name)
EVENT_FUNCTION_MAPPER: Dict[str, Callable[[WildValue], str]] = {
"git.push": get_code_push_commits_body,
"git.pullrequest.created": get_code_pull_request_opened_body,
"git.pullrequest.merged": get_code_pull_request_merged_body,
"git.pullrequest.updated": get_code_pull_request_updated_body,
}
ALL_EVENT_TYPES = list(EVENT_FUNCTION_MAPPER.keys())
@webhook_view("AzureDevOps", all_event_types=ALL_EVENT_TYPES)
@has_request_variables
def api_azuredevops_webhook(
request: HttpRequest,
user_profile: UserProfile,
payload: WildValue = REQ(argument_type="body", converter=to_wild_value),
branches: Optional[str] = REQ(default=None),
) -> HttpResponse:
event = get_event_name(payload, branches)
if event is None:
return json_success(request)
topic = get_topic_based_on_event(payload, event)
body_function = EVENT_FUNCTION_MAPPER[event]
body = body_function(payload)
check_send_webhook_message(request, user_profile, topic, body)
return json_success(request)