Files
pr-agent/pr_agent/servers/gitlab_webhook.py

278 lines
13 KiB
Python

import copy
import re
import json
from datetime import datetime
import uvicorn
from fastapi import APIRouter, FastAPI, Request, status
from fastapi.encoders import jsonable_encoder
from fastapi.responses import JSONResponse
from starlette.background import BackgroundTasks
from starlette.middleware import Middleware
from starlette_context import context
from starlette_context.middleware import RawContextMiddleware
from pr_agent.agent.pr_agent import PRAgent
from pr_agent.algo.utils import update_settings_from_args
from pr_agent.config_loader import get_settings, global_settings
from pr_agent.git_providers.utils import apply_repo_settings
from pr_agent.log import LoggingFormat, get_logger, setup_logger
from pr_agent.secret_providers import get_secret_provider
setup_logger(fmt=LoggingFormat.JSON, level="DEBUG")
router = APIRouter()
secret_provider = get_secret_provider() if get_settings().get("CONFIG.SECRET_PROVIDER") else None
async def get_mr_url_from_commit_sha(commit_sha, gitlab_token, project_id):
try:
import requests
headers = {
'Private-Token': f'{gitlab_token}'
}
# API endpoint to find MRs containing the commit
gitlab_url = get_settings().get("GITLAB.URL", 'https://gitlab.com')
response = requests.get(
f'{gitlab_url}/api/v4/projects/{project_id}/repository/commits/{commit_sha}/merge_requests',
headers=headers
)
merge_requests = response.json()
if merge_requests and response.status_code == 200:
pr_url = merge_requests[0]['web_url']
return pr_url
else:
get_logger().info(f"No merge requests found for commit: {commit_sha}")
return None
except Exception as e:
get_logger().error(f"Failed to get MR url from commit sha: {e}")
return None
async def handle_request(api_url: str, body: str, log_context: dict, sender_id: str):
log_context["action"] = body
log_context["event"] = "pull_request" if body == "/review" else "comment"
log_context["api_url"] = api_url
log_context["app_name"] = get_settings().get("CONFIG.APP_NAME", "Unknown")
with get_logger().contextualize(**log_context):
await PRAgent().handle_request(api_url, body)
async def _perform_commands_gitlab(commands_conf: str, agent: PRAgent, api_url: str,
log_context: dict, data: dict):
apply_repo_settings(api_url)
if not should_process_pr_logic(data): # Here we already updated the configurations
return
commands = get_settings().get(f"gitlab.{commands_conf}", {})
get_settings().set("config.is_auto_command", True)
for command in commands:
try:
split_command = command.split(" ")
command = split_command[0]
args = split_command[1:]
other_args = update_settings_from_args(args)
new_command = ' '.join([command] + other_args)
get_logger().info(f"Performing command: {new_command}")
with get_logger().contextualize(**log_context):
await agent.handle_request(api_url, new_command)
except Exception as e:
get_logger().error(f"Failed to perform command {command}: {e}")
def is_bot_user(data) -> bool:
try:
# logic to ignore bot users (unlike Github, no direct flag for bot users in gitlab)
sender_name = data.get("user", {}).get("name", "unknown").lower()
bot_indicators = ['codium', 'bot_', 'bot-', '_bot', '-bot']
if any(indicator in sender_name for indicator in bot_indicators):
get_logger().info(f"Skipping GitLab bot user: {sender_name}")
return True
except Exception as e:
get_logger().error(f"Failed 'is_bot_user' logic: {e}")
return False
def should_process_pr_logic(data) -> bool:
try:
if not data.get('object_attributes', {}):
return False
title = data['object_attributes'].get('title')
# logic to ignore MRs for titles, labels and source, target branches.
ignore_mr_title = get_settings().get("CONFIG.IGNORE_PR_TITLE", [])
ignore_mr_labels = get_settings().get("CONFIG.IGNORE_PR_LABELS", [])
ignore_mr_source_branches = get_settings().get("CONFIG.IGNORE_PR_SOURCE_BRANCHES", [])
ignore_mr_target_branches = get_settings().get("CONFIG.IGNORE_PR_TARGET_BRANCHES", [])
#
if ignore_mr_source_branches:
source_branch = data['object_attributes'].get('source_branch')
if any(re.search(regex, source_branch) for regex in ignore_mr_source_branches):
get_logger().info(
f"Ignoring MR with source branch '{source_branch}' due to gitlab.ignore_mr_source_branches settings")
return False
if ignore_mr_target_branches:
target_branch = data['object_attributes'].get('target_branch')
if any(re.search(regex, target_branch) for regex in ignore_mr_target_branches):
get_logger().info(
f"Ignoring MR with target branch '{target_branch}' due to gitlab.ignore_mr_target_branches settings")
return False
if ignore_mr_labels:
labels = [label['title'] for label in data['object_attributes'].get('labels', [])]
if any(label in ignore_mr_labels for label in labels):
labels_str = ", ".join(labels)
get_logger().info(f"Ignoring MR with labels '{labels_str}' due to gitlab.ignore_mr_labels settings")
return False
if ignore_mr_title:
if any(re.search(regex, title) for regex in ignore_mr_title):
get_logger().info(f"Ignoring MR with title '{title}' due to gitlab.ignore_mr_title settings")
return False
except Exception as e:
get_logger().error(f"Failed 'should_process_pr_logic': {e}")
return True
@router.post("/webhook")
async def gitlab_webhook(background_tasks: BackgroundTasks, request: Request):
start_time = datetime.now()
request_json = await request.json()
context["settings"] = copy.deepcopy(global_settings)
async def inner(data: dict):
log_context = {"server_type": "gitlab_app"}
get_logger().debug("Received a GitLab webhook")
if request.headers.get("X-Gitlab-Token") and secret_provider:
request_token = request.headers.get("X-Gitlab-Token")
secret = secret_provider.get_secret(request_token)
if not secret:
get_logger().warning(f"Empty secret retrieved, request_token: {request_token}")
return JSONResponse(status_code=status.HTTP_401_UNAUTHORIZED,
content=jsonable_encoder({"message": "unauthorized"}))
try:
secret_dict = json.loads(secret)
gitlab_token = secret_dict["gitlab_token"]
log_context["token_id"] = secret_dict.get("token_name", secret_dict.get("id", "unknown"))
context["settings"].gitlab.personal_access_token = gitlab_token
except Exception as e:
get_logger().error(f"Failed to validate secret {request_token}: {e}")
return JSONResponse(status_code=status.HTTP_401_UNAUTHORIZED, content=jsonable_encoder({"message": "unauthorized"}))
elif get_settings().get("GITLAB.SHARED_SECRET"):
secret = get_settings().get("GITLAB.SHARED_SECRET")
if not request.headers.get("X-Gitlab-Token") == secret:
get_logger().error("Failed to validate secret")
return JSONResponse(status_code=status.HTTP_401_UNAUTHORIZED, content=jsonable_encoder({"message": "unauthorized"}))
else:
get_logger().error("Failed to validate secret")
return JSONResponse(status_code=status.HTTP_401_UNAUTHORIZED, content=jsonable_encoder({"message": "unauthorized"}))
gitlab_token = get_settings().get("GITLAB.PERSONAL_ACCESS_TOKEN", None)
if not gitlab_token:
get_logger().error("No gitlab token found")
return JSONResponse(status_code=status.HTTP_401_UNAUTHORIZED, content=jsonable_encoder({"message": "unauthorized"}))
get_logger().info("GitLab data", artifact=data)
sender = data.get("user", {}).get("username", "unknown")
sender_id = data.get("user", {}).get("id", "unknown")
# ignore bot users
if is_bot_user(data):
return JSONResponse(status_code=status.HTTP_200_OK, content=jsonable_encoder({"message": "success"}))
if data.get('event_type') != 'note': # not a comment
# ignore MRs based on title, labels, source and target branches
if not should_process_pr_logic(data):
return JSONResponse(status_code=status.HTTP_200_OK, content=jsonable_encoder({"message": "success"}))
log_context["sender"] = sender
if data.get('object_kind') == 'merge_request' and data['object_attributes'].get('action') in ['open', 'reopen']:
title = data['object_attributes'].get('title')
url = data['object_attributes'].get('url')
draft = data['object_attributes'].get('draft')
get_logger().info(f"New merge request: {url}")
if draft:
get_logger().info(f"Skipping draft MR: {url}")
return JSONResponse(status_code=status.HTTP_200_OK, content=jsonable_encoder({"message": "success"}))
await _perform_commands_gitlab("pr_commands", PRAgent(), url, log_context, data)
elif data.get('object_kind') == 'note' and data.get('event_type') == 'note': # comment on MR
if 'merge_request' in data:
mr = data['merge_request']
url = mr.get('url')
get_logger().info(f"A comment has been added to a merge request: {url}")
body = data.get('object_attributes', {}).get('note')
if data.get('object_attributes', {}).get('type') == 'DiffNote' and '/ask' in body: # /ask_line
body = handle_ask_line(body, data)
await handle_request(url, body, log_context, sender_id)
elif data.get('object_kind') == 'push' and data.get('event_name') == 'push':
try:
project_id = data['project_id']
commit_sha = data['checkout_sha']
url = await get_mr_url_from_commit_sha(commit_sha, gitlab_token, project_id)
if not url:
get_logger().info(f"No MR found for commit: {commit_sha}")
return JSONResponse(status_code=status.HTTP_200_OK,
content=jsonable_encoder({"message": "success"}))
# we need first to apply_repo_settings
apply_repo_settings(url)
commands_on_push = get_settings().get(f"gitlab.push_commands", {})
handle_push_trigger = get_settings().get(f"gitlab.handle_push_trigger", False)
if not commands_on_push or not handle_push_trigger:
get_logger().info("Push event, but no push commands found or push trigger is disabled")
return JSONResponse(status_code=status.HTTP_200_OK,
content=jsonable_encoder({"message": "success"}))
get_logger().debug(f'A push event has been received: {url}')
await _perform_commands_gitlab("push_commands", PRAgent(), url, log_context, data)
except Exception as e:
get_logger().error(f"Failed to handle push event: {e}")
background_tasks.add_task(inner, request_json)
end_time = datetime.now()
get_logger().info(f"Processing time: {end_time - start_time}", request=request_json)
return JSONResponse(status_code=status.HTTP_200_OK, content=jsonable_encoder({"message": "success"}))
def handle_ask_line(body, data):
try:
line_range_ = data['object_attributes']['position']['line_range']
# if line_range_['start']['type'] == 'new':
start_line = line_range_['start']['new_line']
end_line = line_range_['end']['new_line']
# else:
# start_line = line_range_['start']['old_line']
# end_line = line_range_['end']['old_line']
question = body.replace('/ask', '').strip()
path = data['object_attributes']['position']['new_path']
side = 'RIGHT' # if line_range_['start']['type'] == 'new' else 'LEFT'
comment_id = data['object_attributes']["discussion_id"]
get_logger().info("Handling line comment")
body = f"/ask_line --line_start={start_line} --line_end={end_line} --side={side} --file_name={path} --comment_id={comment_id} {question}"
except Exception as e:
get_logger().error(f"Failed to handle ask line comment: {e}")
return body
@router.get("/")
async def root():
return {"status": "ok"}
gitlab_url = get_settings().get("GITLAB.URL", None)
if not gitlab_url:
raise ValueError("GITLAB.URL is not set")
get_settings().config.git_provider = "gitlab"
middleware = [Middleware(RawContextMiddleware)]
app = FastAPI(middleware=middleware)
app.include_router(router)
def start():
uvicorn.run(app, host="0.0.0.0", port=3000)
if __name__ == '__main__':
start()