import logging from datetime import datetime, timezone from typing import Any, Dict, List, Optional, Tuple from urllib.parse import urljoin from django.http import HttpRequest, HttpResponse from zerver.decorator import webhook_view from zerver.lib.exceptions import UnsupportedWebhookEventTypeError from zerver.lib.response import json_success from zerver.lib.typed_endpoint import JsonBodyPayload, typed_endpoint from zerver.lib.webhooks.common import check_send_webhook_message from zerver.models import UserProfile DEPRECATED_EXCEPTION_MESSAGE_TEMPLATE = """ New [issue]({url}) (level: {level}): ``` quote {message} ``` """ MESSAGE_EVENT_TEMPLATE = """ **New message event:** [{title}]({web_link}) ```quote **level:** {level} **timestamp:** {datetime} ``` """ EXCEPTION_EVENT_TEMPLATE = """ **New exception:** [{title}]({web_link}) ```quote **level:** {level} **timestamp:** {datetime} **filename:** {filename} ``` """ EXCEPTION_EVENT_TEMPLATE_WITH_TRACEBACK = ( EXCEPTION_EVENT_TEMPLATE + """ Traceback: ```{syntax_highlight_as} {pre_context}---> {context_line}{post_context}\ ``` """ ) # Because of the \n added at the end of each context element, # this will actually look better in the traceback. ISSUE_CREATED_MESSAGE_TEMPLATE = """ **New issue created:** {title} ```quote **level:** {level} **timestamp:** {datetime} **assignee:** {assignee} ``` """ ISSUE_ASSIGNED_MESSAGE_TEMPLATE = """ Issue **{title}** has now been assigned to **{assignee}** by **{actor}**. """ ISSUE_RESOLVED_MESSAGE_TEMPLATE = """ Issue **{title}** was marked as resolved by **{actor}**. """ ISSUE_IGNORED_MESSAGE_TEMPLATE = """ Issue **{title}** was ignored by **{actor}**. """ # Maps "platform" name provided by Sentry to the Pygments lexer name syntax_highlight_as_map = { "go": "go", "java": "java", "javascript": "javascript", "node": "javascript", "python": "python3", "ruby": "ruby", } def is_sample_event(event: Dict[str, Any]) -> bool: # This is just a heuristic to detect the sample event, this should # not be used for making important behavior decisions. title = event.get("title", "") if title == "This is an example Python exception": return True return False def convert_lines_to_traceback_string(lines: Optional[List[str]]) -> str: traceback = "" if lines is not None: for line in lines: if line == "": traceback += "\n" else: traceback += f" {line}\n" return traceback def handle_event_payload(event: Dict[str, Any]) -> Tuple[str, str]: """Handle either an exception type event or a message type event payload.""" topic = event["title"] platform_name = event["platform"] syntax_highlight_as = syntax_highlight_as_map.get(platform_name, "") if syntax_highlight_as == "": # nocoverage logging.info("Unknown Sentry platform: %s", platform_name) # We shouldn't support the officially deprecated Raven series of # Python SDKs. if platform_name == "python" and int(event["version"]) < 7 and not is_sample_event(event): # The sample event is still an old "version" -- accept it even # though we don't accept events from the old Python SDK. raise UnsupportedWebhookEventTypeError("Raven SDK") context = { "title": topic, "level": event["level"], "web_link": event["web_url"], "datetime": event["datetime"].split(".")[0].replace("T", " "), } if "exception" in event: # The event was triggered by a sentry.capture_exception() call # (in the Python Sentry SDK) or something similar. filename = event["metadata"].get("filename", None) stacktrace = None for value in reversed(event["exception"]["values"]): if "stacktrace" in value: stacktrace = value["stacktrace"] break if stacktrace and filename: exception_frame = None for frame in reversed(stacktrace["frames"]): if frame.get("filename", None) == filename: exception_frame = frame break if ( exception_frame and "context_line" in exception_frame and exception_frame["context_line"] is not None ): pre_context = convert_lines_to_traceback_string( exception_frame.get("pre_context", None) ) context_line = exception_frame["context_line"] + "\n" post_context = convert_lines_to_traceback_string( exception_frame.get("post_context", None) ) context.update( syntax_highlight_as=syntax_highlight_as, filename=filename, pre_context=pre_context, context_line=context_line, post_context=post_context, ) body = EXCEPTION_EVENT_TEMPLATE_WITH_TRACEBACK.format(**context) return (topic, body) context.update(filename=filename) # nocoverage body = EXCEPTION_EVENT_TEMPLATE.format(**context) # nocoverage return (topic, body) # nocoverage elif "logentry" in event: # The event was triggered by a sentry.capture_message() call # (in the Python Sentry SDK) or something similar. body = MESSAGE_EVENT_TEMPLATE.format(**context) else: raise UnsupportedWebhookEventTypeError("unknown-event type") return (topic, body) def handle_issue_payload( action: str, issue: Dict[str, Any], actor: Dict[str, Any] ) -> Tuple[str, str]: """Handle either an issue type event.""" topic = issue["title"] datetime = issue["lastSeen"].split(".")[0].replace("T", " ") if issue["assignedTo"]: if issue["assignedTo"]["type"] == "team": assignee = "team {}".format(issue["assignedTo"]["name"]) else: assignee = issue["assignedTo"]["name"] else: assignee = "No one" if action == "created": context = { "title": topic, "level": issue["level"], "datetime": datetime, "assignee": assignee, } body = ISSUE_CREATED_MESSAGE_TEMPLATE.format(**context) elif action == "resolved": context = { "title": topic, "actor": actor["name"], } body = ISSUE_RESOLVED_MESSAGE_TEMPLATE.format(**context) elif action == "assigned": context = { "title": topic, "assignee": assignee, "actor": actor["name"], } body = ISSUE_ASSIGNED_MESSAGE_TEMPLATE.format(**context) elif action == "ignored": context = { "title": topic, "actor": actor["name"], } body = ISSUE_IGNORED_MESSAGE_TEMPLATE.format(**context) else: raise UnsupportedWebhookEventTypeError(f"{action} action") return (topic, body) def handle_deprecated_payload(payload: Dict[str, Any]) -> Tuple[str, str]: topic = "{}".format(payload.get("project_name")) body = DEPRECATED_EXCEPTION_MESSAGE_TEMPLATE.format( level=payload["level"].upper(), url=payload.get("url"), message=payload.get("message"), ) return (topic, body) def transform_webhook_payload(payload: Dict[str, Any]) -> Optional[Dict[str, Any]]: """Attempt to use webhook payload for the notification. When the integration is configured as a webhook, instead of being added as an internal integration, the payload is slightly different, but has all the required information for sending a notification. We transform this payload to look like the payload from a "properly configured" integration. """ event = payload.get("event", {}) # deprecated payloads don't have event_id event_id = event.get("event_id") if not event_id: return None event_path = f"events/{event_id}/" event["web_url"] = urljoin(payload["url"], event_path) timestamp = event.get("timestamp", event["received"]) event["datetime"] = datetime.fromtimestamp(timestamp, timezone.utc).isoformat( timespec="microseconds" ) return payload @webhook_view("Sentry") @typed_endpoint def api_sentry_webhook( request: HttpRequest, user_profile: UserProfile, *, payload: JsonBodyPayload[Dict[str, Any]], ) -> HttpResponse: data = payload.get("data", None) if data is None: data = transform_webhook_payload(payload) # We currently support two types of payloads: events and issues. if data: if "event" in data: topic, body = handle_event_payload(data["event"]) elif "issue" in data: topic, body = handle_issue_payload(payload["action"], data["issue"], payload["actor"]) else: raise UnsupportedWebhookEventTypeError(str(list(data.keys()))) else: topic, body = handle_deprecated_payload(payload) check_send_webhook_message(request, user_profile, topic, body) return json_success(request)