# Webhooks for external integrations. from __future__ import absolute_import from django.conf import settings from django.views.decorators.csrf import csrf_exempt from zerver.models import UserProfile, get_client, MAX_SUBJECT_LENGTH from zerver.lib.actions import check_send_message from zerver.lib.response import json_success, json_error from zerver.decorator import rate_limit_user, authenticated_api_view, REQ, \ has_request_variables, json_to_dict, authenticated_rest_api_view, \ api_key_only_webhook_view from zerver.views import send_message_backend from defusedxml.ElementTree import fromstring as xml_fromstring import base64 import logging import re import ujson import markdown.inlinepatterns from functools import wraps def github_generic_subject(noun, repository, blob): # issue and pull_request objects have the same fields we're interested in return "%s: %s %d: %s" % (repository['name'], noun, blob['number'], blob['title']) def github_generic_content(noun, payload, blob): # issue and pull_request objects have the same fields we're interested in content = ("%s %s [%s %s](%s)" % (blob['user']['login'], payload['action'], noun, blob['number'], blob['html_url'])) if payload['action'] in ('opened', 'reopened'): content += "\n\n~~~ quote\n%s\n~~~" % (blob['body'],) return content @authenticated_api_view @has_request_variables def api_github_landing(request, user_profile, event=REQ, payload=REQ(converter=json_to_dict), branches=REQ(default=''), stream=REQ(default='')): # TODO: this should all be moved to an external bot repository = payload['repository'] # Special hook for capturing event data try: if repository['name'] == 'zulip-test' and settings.DEPLOYED: with open('/var/log/zulip/github-payloads', 'a') as f: f.write(ujson.dumps({'event': event, 'payload': payload})) f.write("\n") except Exception: logging.exception("Error while capturing Github event") if not stream: stream = 'commits' # CUSTOMER18 has requested not to get pull request notifications if event == 'pull_request' and user_profile.realm.domain not in ['customer18.invalid']: pull_req = payload['pull_request'] subject = github_generic_subject('pull request', repository, pull_req) content = github_generic_content('pull request', payload, pull_req) elif event == 'issues': if user_profile.realm.domain not in ('zulip.com', 'customer5.invalid'): return json_success() stream = 'issues' issue = payload['issue'] subject = github_generic_subject('issue', repository, issue) content = github_generic_content('issue', payload, issue) elif event == 'issue_comment': if payload['action'] != 'created': return json_success() # Comments on both issues and pull requests come in as issue_comment events issue = payload['issue'] if issue['pull_request']['diff_url'] is None: # It's an issues comment stream = 'issues' noun = 'issue' else: # It's a pull request comment noun = 'pull request' subject = github_generic_subject(noun, repository, issue) comment = payload['comment'] content = ("%s [commented](%s) on [%s %d](%s)\n\n~~~ quote\n%s\n~~~" % (comment['user']['login'], comment['html_url'], noun, issue['number'], issue['html_url'], comment['body'])) elif event == 'push': short_ref = re.sub(r'^refs/heads/', '', payload['ref']) # This is a bit hackish, but is basically so that CUSTOMER18 doesn't # get spammed when people commit to non-master all over the place. # Long-term, this will be replaced by some GitHub configuration # option of which branches to notify on. if short_ref != 'master' and user_profile.realm.domain in ['customer18.invalid', 'zulip.com']: return json_success() if branches: # If we are given a whitelist of branches, then we silently ignore # any push notification on a branch that is not in our whitelist. if short_ref not in re.split('[\s,;|]+', branches): return json_success() subject, content = build_message_from_gitlog(user_profile, repository['name'], payload['ref'], payload['commits'], payload['before'], payload['after'], payload['compare'], payload['pusher']['name']) else: # We don't handle other events even though we get notified # about them return json_success() subject = elide_subject(subject) request.client = get_client("github_bot") return send_message_backend(request, user_profile, message_type_name="stream", message_to=[stream], forged=False, subject_name=subject, message_content=content) def build_commit_list_content(commits, branch, compare_url, pusher): if compare_url is not None: push_text = "[pushed](%s)" % (compare_url,) else: push_text = "pushed" content = ("%s %s to branch %s\n\n" % (pusher, push_text, branch)) num_commits = len(commits) max_commits = 10 truncated_commits = commits[:max_commits] for commit in truncated_commits: short_id = commit['id'][:7] (short_commit_msg, _, _) = commit['message'].partition("\n") content += "* [%s](%s): %s\n" % (short_id, commit['url'], short_commit_msg) if (num_commits > max_commits): content += ("\n[and %d more commits]" % (num_commits - max_commits,)) return content def build_message_from_gitlog(user_profile, name, ref, commits, before, after, url, pusher): short_ref = re.sub(r'^refs/heads/', '', ref) subject = name if re.match(r'^0+$', after): content = "%s deleted branch %s" % (pusher, short_ref) elif len(commits) == 0: content = ("%s [force pushed](%s) to branch %s. Head is now %s" % (pusher, url, short_ref, after[:7])) else: content = build_commit_list_content(commits, short_ref, url, pusher) return (subject, content) def elide_subject(subject): if len(subject) > MAX_SUBJECT_LENGTH: subject = subject[:57].rstrip() + '...' return subject def convert_jira_markup(content): # Attempt to do some simplistic conversion of JIRA # formatting to Markdown, for consumption in Zulip # Jira uses *word* for bold, we use **word** content = re.sub(r'\*([^\*]+)\*', r'**\1**', content) # Jira uses {{word}} for monospacing, we use `word` content = re.sub(r'{{([^\*]+?)}}', r'`\1`', content) # Starting a line with bq. block quotes that line content = re.sub(r'bq\. (.*)', r'> \1', content) # Wrapping a block of code in {quote}stuff{quote} also block-quotes it quote_re = re.compile(r'{quote}(.*?){quote}', re.DOTALL) content = re.sub(quote_re, r'~~~ quote\n\1\n~~~', content) # {noformat}stuff{noformat} blocks are just code blocks with no # syntax highlighting noformat_re = re.compile(r'{noformat}(.*?){noformat}', re.DOTALL) content = re.sub(noformat_re, r'~~~\n\1\n~~~', content) # Code blocks are delineated by {code[: lang]} {code} code_re = re.compile(r'{code[^\n]*}(.*?){code}', re.DOTALL) content = re.sub(code_re, r'~~~\n\1\n~~~', content) # Links are of form: [https://www.google.com] or [Link Title|https://www.google.com] # In order to support both forms, we don't match a | in bare links content = re.sub(r'\[([^\|]+?)\]', r'[\1](\1)', content) # Full links which have a | are converted into a better markdown link full_link_re = re.compile(r'\[(?:(?P[^|]+)\|)(?P<url>.*)\]') content = re.sub(full_link_re, r'[\g<title>](\g<url>)', content) return content @api_key_only_webhook_view def api_jira_webhook(request, user_profile): try: payload = ujson.loads(request.body) except ValueError: return json_error("Malformed JSON input") try: stream = request.GET['stream'] except (AttributeError, KeyError): stream = 'jira' def get_in(payload, keys, default=''): try: for key in keys: payload = payload[key] except (AttributeError, KeyError, TypeError): return default return payload event = payload.get('webhookEvent') author = get_in(payload, ['user', 'displayName']) issueId = get_in(payload, ['issue', 'key']) # Guess the URL as it is not specified in the payload # We assume that there is a /browse/BUG-### page # from the REST url of the issue itself baseUrl = re.match("(.*)\/rest\/api/.*", get_in(payload, ['issue', 'self'])) if baseUrl and len(baseUrl.groups()): issue = "[%s](%s/browse/%s)" % (issueId, baseUrl.group(1), issueId) else: issue = issueId title = get_in(payload, ['issue', 'fields', 'summary']) priority = get_in(payload, ['issue', 'fields', 'priority', 'name']) assignee = get_in(payload, ['issue', 'fields', 'assignee', 'displayName'], 'no one') subject = "%s: %s" % (issueId, title) if event == 'jira:issue_created': content = "%s **created** %s priority %s, assigned to **%s**:\n\n> %s" % \ (author, issue, priority, assignee, title) elif event == 'jira:issue_deleted': content = "%s **deleted** %s!" % \ (author, issue) elif event == 'jira:issue_updated': # Reassigned, commented, reopened, and resolved events are all bundled # into this one 'updated' event type, so we try to extract the meaningful # event that happened content = "%s **updated** %s:\n\n" % (author, issue) changelog = get_in(payload, ['changelog',]) comment = get_in(payload, ['comment', 'body']) if changelog != '': # Use the changelog to display the changes, whitelist types we accept items = changelog.get('items') for item in items: field = item.get('field') if field in ('status', 'assignee'): content += "* Changed %s from **%s** to **%s**\n" % (field, item.get('fromString'), item.get('toString')) if comment != '': comment = convert_jira_markup(comment) content += "\n%s\n" % (comment,) elif 'transition' in payload: from_status = get_in(payload, ['transition', 'from_status']) to_status = get_in(payload, ['transition', 'to_status']) content = "%s **transitioned** %s from %s to %s" % (author, issue, from_status, to_status) else: # Unknown event type if not settings.TEST_SUITE: logging.warning("Got JIRA event type we don't understand: %s" % (event,)) return json_error("Unknown JIRA event type") subject = elide_subject(subject) check_send_message(user_profile, get_client("API"), "stream", [stream], subject, content) return json_success() @api_key_only_webhook_view def api_pivotal_webhook(request, user_profile): try: stream = request.GET['stream'] except (AttributeError, KeyError): return json_error("Missing stream parameter.") payload = xml_fromstring(request.body) def get_text(attrs): start = payload try: for attr in attrs: start = start.find(attr) return start.text except AttributeError: return "" try: event_type = payload.find('event_type').text description = payload.find('description').text project_id = payload.find('project_id').text story_id = get_text(['stories', 'story', 'id']) # Ugh, the URL in the XML data is not a clickable url that works for the user # so we try to build one that the user can actually click on url = "https://www.pivotaltracker.com/s/projects/%s/stories/%s" % (project_id, story_id) # Pivotal doesn't tell us the name of the story, but it's usually in the # description in quotes as the first quoted string name_re = re.compile(r'[^"]+"([^"]+)".*') match = name_re.match(description) if match and len(match.groups()): name = match.group(1) else: name = "Story changed" # Failed for an unknown reason, show something more_info = " [(view)](%s)" % (url,) if event_type == 'story_update': subject = name content = description + more_info elif event_type == 'note_create': subject = "Comment added" content = description + more_info elif event_type == 'story_create': issue_desc = get_text(['stories', 'story', 'description']) issue_type = get_text(['stories', 'story', 'story_type']) issue_status = get_text(['stories', 'story', 'current_state']) estimate = get_text(['stories', 'story', 'estimate']) if estimate != '': estimate = " worth %s story points" % (estimate,) subject = name content = "%s (%s %s%s):\n\n~~~ quote\n%s\n~~~\n\n%s" % (description, issue_status, issue_type, estimate, issue_desc, more_info) else: logging.warning("Received Pivotal event we did not understand: %s" % (event_type, )) return json_success() except AttributeError: return json_error("Failed to extract data from Pivotal XML response") subject = elide_subject(subject) check_send_message(user_profile, get_client("API"), "stream", [stream], subject, content) return json_success() # Beanstalk's web hook UI rejects url with a @ in the username section of a url # 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): @wraps(view_func) def _wrapped_view_func(request, *args, **kwargs): try: auth_type, encoded_value = request.META['HTTP_AUTHORIZATION'].split() if auth_type.lower() == "basic": email, api_key = base64.b64decode(encoded_value).split(":") email = email.replace('%40', '@') request.META['HTTP_AUTHORIZATION'] = "Basic %s" % (base64.b64encode("%s:%s" % (email, api_key))) except: pass return view_func(request, *args, **kwargs) return _wrapped_view_func @beanstalk_decoder @authenticated_rest_api_view @has_request_variables def api_beanstalk_webhook(request, user_profile, payload=REQ(converter=json_to_dict)): # 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: # To get a linkable url, 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.get('message').partition("\n") subject = "svn r%s" % (revision,) content = "%s pushed [revision %s](%s):\n\n> %s" % (author, revision, url, short_commit_msg) subject = elide_subject(subject) check_send_message(user_profile, get_client("API"), "stream", ["commits"], subject, content) return json_success() # Desk.com's integrations all make the user supply a template, where it fills # in stuff like {{customer.name}} and posts the result as a "data" parameter. # There's no raw JSON for us to work from. Thus, it makes sense to just write # a template Zulip message within Desk.com and have the webhook extract that # from the "data" param and post it, which this does. @csrf_exempt @authenticated_rest_api_view @has_request_variables def api_deskdotcom_webhook(request, user_profile, data=REQ(), topic=REQ(default="Desk.com notification"), stream=REQ(default="desk.com")): check_send_message(user_profile, get_client("API"), "stream", [stream], topic, data) return json_success() @api_key_only_webhook_view @has_request_variables def api_newrelic_webhook(request, user_profile, alert=REQ(converter=json_to_dict, default=None), deployment=REQ(converter=json_to_dict, default=None)): try: stream = request.GET['stream'] except (AttributeError, KeyError): return json_error("Missing stream parameter.") if alert: # Use the message as the subject because it stays the same for # "opened", "acknowledged", and "closed" messages that should be # grouped. subject = alert['message'] content = "%(long_description)s\n[View alert](%(alert_url)s)" % (alert) elif deployment: subject = "%s deploy" % (deployment['application_name']) content = """`%(revision)s` deployed by **%(deployed_by)s** %(description)s %(changelog)s""" % (deployment) else: return json_error("Unknown webhook request") subject = elide_subject(subject) check_send_message(user_profile, get_client("API"), "stream", [stream], subject, content) return json_success() @authenticated_rest_api_view @has_request_variables def api_bitbucket_webhook(request, user_profile, payload=REQ(converter=json_to_dict), stream=REQ(default='commits')): repository = payload['repository'] commits = [{'id': commit['raw_node'], 'message': commit['message'], 'url': '%s%scommits/%s' % (payload['canon_url'], repository['absolute_url'], commit['raw_node'])} for commit in payload['commits']] subject = repository['name'] if len(commits) == 0: # Bitbucket doesn't give us enough information to really give # a useful message :/ content = ("%s [force pushed](%s)" % (payload['user'], payload['canon_url'] + repository['absolute_url'])) else: content = build_commit_list_content(commits, payload['commits'][-1]['branch'], None, payload['user']) subject = elide_subject(subject) check_send_message(user_profile, get_client("API"), "stream", [stream], subject, content) return json_success()