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Added Github backend [closes #95]

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This commit is contained in:
Fabio Manganiello 2020-08-22 12:09:24 +02:00
parent a0d97c0f18
commit 2dc8fe9437
6 changed files with 384 additions and 5 deletions
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1
docs/source/conf.py
View file

@ -258,6 +258,7 @@ autodoc_mock_imports = ['googlesamples.assistant.grpc.audio_helpers',
'gi',
'gi.repository',
'twilio',
'pytz',
]
sys.path.insert(0, os.path.abspath('../..'))

4
platypush/backend/__init__.py
View file

@ -280,8 +280,8 @@ class Backend(Thread, EventGenerator):
def should_stop(self):
return self._should_stop
def wait_stop(self, timeout=None):
self._stop_event.wait(timeout)
def wait_stop(self, timeout=None) -> bool:
return self._stop_event.wait(timeout)
def _get_redis(self):
import redis

226
platypush/backend/github.py Normal file
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@ -0,0 +1,226 @@
import datetime
import os
import threading
from typing import Optional, List
import pytz
import requests
from sqlalchemy import create_engine, Column, String, DateTime
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker, scoped_session
from platypush.backend import Backend
from platypush.config import Config
from platypush.message.event.github import GithubPushEvent, GithubCommitCommentEvent, GithubCreateEvent, \
GithubDeleteEvent, GithubEvent, GithubForkEvent, GithubWikiEvent, GithubIssueCommentEvent, GithubIssueEvent, \
GithubMemberEvent, GithubPublicEvent, GithubPullRequestEvent, GithubPullRequestReviewCommentEvent, \
GithubReleaseEvent, GithubSponsorshipEvent, GithubWatchEvent
Base = declarative_base()
Session = scoped_session(sessionmaker())
class GithubResource(Base):
"""
Models the GithubLastEvent table, containing the timestamp where a certain URL was last checked.
"""
__tablename__ = 'GithubLastEvent'
uri = Column(String, primary_key=True)
last_updated_at = Column(DateTime)
class GithubBackend(Backend):
"""
This backend monitors for notifications and events either on Github user, organization or repository level.
You'll need a Github personal access token to use the service. To get one:
- Access your Github profile settings
- Select *Developer Settings*
- Select *Personal access tokens*
- Click *Generate new token*
This backend requires the following permissions:
- ``repo``
- ``notifications``
- ``read:org`` if you want to access repositories on organization level.
Triggers:
- :class:`platypush.message.event.github.GithubPushEvent` when a new push is created.
- :class:`platypush.message.event.github.GithubCommitCommentEvent` when a new commit comment is created.
- :class:`platypush.message.event.github.GithubCreateEvent` when a tag or branch is created.
- :class:`platypush.message.event.github.GithubDeleteEvent` when a tag or branch is deleted.
- :class:`platypush.message.event.github.GithubForkEvent` when a user forks a repository.
- :class:`platypush.message.event.github.GithubWikiEvent` when new activity happens on a repository wiki.
- :class:`platypush.message.event.github.GithubIssueCommentEvent` when new activity happens on an issue comment.
- :class:`platypush.message.event.github.GithubIssueEvent` when new repository issue activity happens.
- :class:`platypush.message.event.github.GithubMemberEvent` when new repository collaborators activity happens.
- :class:`platypush.message.event.github.GithubPublicEvent` when a repository goes public.
- :class:`platypush.message.event.github.GithubPullRequestEvent` when new pull request related activity happens.
- :class:`platypush.message.event.github.GithubPullRequestReviewCommentEvent` when activity happens on a pull
request commit.
- :class:`platypush.message.event.github.GithubReleaseEvent` when a new release happens.
- :class:`platypush.message.event.github.GithubSponsorshipEvent` when new sponsorship related activity happens.
- :class:`platypush.message.event.github.GithubWatchEvent` when someone stars/starts watching a repository.
- :class:`platypush.message.event.github.GithubEvent` for any event that doesn't fall in the above categories
(``event_type`` will be set accordingly).
"""
_base_url = 'https://api.github.com'
def __init__(self, user: str, user_token: str, repos: Optional[List[str]] = None, org: Optional[str] = None,
poll_seconds: int = 60, max_events_per_scan: Optional[int] = 10, *args, **kwargs):
"""
If neither ``repos`` nor ``org`` is specified then the backend will monitor all new events on user level.
:param user: Github username.
:param user_token: Github personal access token.
:param repos: List of repos to be monitored - if a list is provided then only these repositories will be
monitored for events. Repositories should be passed in the format ``username/repository``.
:param org: Organization to be monitored - if provided then only this organization will be monitored for events.
:param poll_seconds: How often the backend should check for new events, in seconds (default: 60).
:param max_events_per_scan: Maximum number of events per resource that will be triggered if there is a large
number of events/notification since the last check (default: 10). Specify 0 or null for no limit.
"""
super().__init__(*args, **kwargs)
self._last_text: Optional[str] = None
self.user = user
self.user_token = user_token
self.repos = repos or []
self.org = org
self.poll_seconds = poll_seconds
self.db_lock = threading.RLock()
self.workdir = os.path.join(os.path.expanduser(Config.get('workdir')), 'github')
self.dbfile = os.path.join(self.workdir, 'github.db')
self.max_events_per_scan = max_events_per_scan
os.makedirs(os.path.dirname(self.dbfile), exist_ok=True)
self._init_db()
def _request(self, uri: str, method: str = 'get') -> dict:
method = getattr(requests, method.lower())
return method(self._base_url + uri, auth=(self.user, self.user_token),
headers={'Accept': 'application/vnd.github.v3+json'}).json()
def _init_db(self):
engine = create_engine('sqlite:///{}'.format(self.dbfile), connect_args={'check_same_thread': False})
Base.metadata.create_all(engine)
Session.configure(bind=engine)
@staticmethod
def _to_datetime(time_string: str) -> datetime.datetime:
""" Convert ISO 8061 string format with leading 'Z' into something understandable by Python """
return datetime.datetime.fromisoformat(time_string[:-1] + '+00:00')
@staticmethod
def _get_or_create_resource(uri: str, session: Session) -> GithubResource:
record = session.query(GithubResource).filter_by(uri=uri).first()
if record is None:
record = GithubResource(uri=uri)
session.add(record)
session.commit()
return record
def _get_last_event_time(self, uri: str):
with self.db_lock:
record = self._get_or_create_resource(uri=uri, session=Session())
return record.last_updated_at.replace(tzinfo=pytz.UTC) if record.last_updated_at else None
def _update_last_event_time(self, uri: str, last_updated_at: datetime.datetime):
with self.db_lock:
session = Session()
record = self._get_or_create_resource(uri=uri, session=session)
record.last_updated_at = last_updated_at
session.add(record)
session.commit()
@classmethod
def _parse_event(cls, event: dict) -> GithubEvent:
event_mapping = {
'PushEvent': GithubPushEvent,
'CommitCommentEvent': GithubCommitCommentEvent,
'CreateEvent': GithubCreateEvent,
'DeleteEvent': GithubDeleteEvent,
'ForkEvent': GithubForkEvent,
'GollumEvent': GithubWikiEvent,
'IssueCommentEvent': GithubIssueCommentEvent,
'IssuesEvent': GithubIssueEvent,
'MemberEvent': GithubMemberEvent,
'PublicEvent': GithubPublicEvent,
'PullRequestEvent': GithubPullRequestEvent,
'PullRequestReviewCommentEvent': GithubPullRequestReviewCommentEvent,
'ReleaseEvent': GithubReleaseEvent,
'SponsorshipEvent': GithubSponsorshipEvent,
'WatchEvent': GithubWatchEvent,
}
event_type = event_mapping[event['type']] if event['type'] in event_mapping else GithubEvent
return event_type(event_type=event['type'], actor=event['actor'], repo=event.get('repo', {}),
payload=event['payload'], created_at=cls._to_datetime(event['created_at']))
def _events_monitor(self, uri: str, method: str = 'get'):
def thread():
while True:
try:
events = self._request(uri, method)
if not events:
continue
last_event_time = self._get_last_event_time(uri)
new_last_event_time = last_event_time
fired_events = []
for event in events:
if self.max_events_per_scan and len(fired_events) >= self.max_events_per_scan:
break
event_time = self._to_datetime(event['created_at'])
if last_event_time and event_time <= last_event_time:
break
if not new_last_event_time or event_time > new_last_event_time:
new_last_event_time = event_time
fired_events.append(self._parse_event(event))
for event in fired_events:
self.bus.post(event)
self._update_last_event_time(uri=uri, last_updated_at=new_last_event_time)
except Exception as e:
self.logger.warning('Encountered exception while fetching events from {}: {}'.format(
uri, str(e)))
self.logger.exception(e)
finally:
if self.wait_stop(timeout=self.poll_seconds):
break
return thread
def run(self):
self.logger.info('Starting Github backend')
monitors = []
if self.repos:
for repo in self.repos:
monitors.append(threading.Thread(target=self._events_monitor('/networks/{repo}/events'.format(repo=repo))))
if self.org:
monitors.append(threading.Thread(target=self._events_monitor('/orgs/{org}/events'.format(org=self.org))))
if not (self.repos or self.org):
monitors.append(threading.Thread(target=self._events_monitor('/users/{user}/events'.format(user=self.user))))
for monitor in monitors:
monitor.start()
self.logger.info('Started Github backend')
for monitor in monitors:
monitor.join()
self.logger.info('Github backend terminated')
# vim:sw=4:ts=4:et:

146
platypush/message/event/github.py Normal file
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@ -0,0 +1,146 @@
from datetime import datetime
from dataclasses import dataclass
from typing import Optional, Dict
from platypush.message.event import Event
@dataclass
class Actor:
id: str
login: str
display_login: str
url: str
gravatar_id: str
avatar_url: str
@dataclass
class Repo:
id: str
name: str
url: str
class GithubEvent(Event):
""" Generic Github event """
def __init__(self,
event_type: str,
created_at: datetime,
actor: Optional[Dict[str, str]] = None,
repo: Optional[Dict[str, str]] = None,
*args, **kwargs):
super().__init__(*args, actor=actor, event_type=event_type, created_at=created_at, **kwargs)
self.event_type = event_type
self.actor = Actor(**actor) if actor else None
self.repo = Repo(**repo) if repo else None
self.created_at = created_at
class GithubPushEvent(GithubEvent):
""" Github push event. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubCommitCommentEvent(GithubEvent):
""" A commit comment is created. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubCreateEvent(GithubEvent):
""" A git branch or tag is created. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubDeleteEvent(GithubEvent):
""" A git branch or tag is deleted. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubForkEvent(GithubEvent):
""" A user forks a watched repository. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubWikiEvent(GithubEvent):
""" A wiki page is created or updated on a watched repository. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubIssueCommentEvent(GithubEvent):
""" A comment is added or updated on an issue. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubIssueEvent(GithubEvent):
""" A new activity is registered on an issue. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubMemberEvent(GithubEvent):
""" New activity related to repository collaborators. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubPublicEvent(GithubEvent):
""" A private repository is made public. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubPullRequestEvent(GithubEvent):
""" New activity related to a pull request. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubPullRequestReviewCommentEvent(GithubEvent):
""" New activity related to comments of a pull request. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubReleaseEvent(GithubEvent):
""" New activity related to the release of a repository. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubSponsorshipEvent(GithubEvent):
""" New activity related to the sponsorship of a repository. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
class GithubWatchEvent(GithubEvent):
""" Event triggered when someone stars or starts watching a repository. """
def __init__(self, payload: dict, *args, **kwargs):
super().__init__(*args, payload=payload, **kwargs)
# vim:sw=4:ts=4:et:

5
requirements.txt
View file

@ -281,4 +281,7 @@ croniter
# python-dbus
# Support for Twilio
# twilio
# twilio
# Support for Github
# pytz

7
setup.py
View file

@ -162,6 +162,7 @@ setup(
'websocket-client',
'wheel',
'zeroconf>=0.27.0',
'tz',
],
extras_require={
@ -172,9 +173,9 @@ setup(
# Support for Pushbullet backend and plugin
'pushbullet': ['pushbullet.py @ https://github.com/rbrcsk/pushbullet.py/tarball/master'],
# Support for HTTP backend
'http': ['flask', 'python-dateutil', 'tz', 'frozendict', 'bcrypt'],
'http': ['flask', 'python-dateutil', 'frozendict', 'bcrypt'],
# Support for uWSGI HTTP backend
'uwsgi': ['flask', 'python-dateutil', 'tz', 'frozendict', 'uwsgi', 'bcrypt'],
'uwsgi': ['flask', 'python-dateutil', 'frozendict', 'uwsgi', 'bcrypt'],
# Support for MQTT backends
'mqtt': ['paho-mqtt'],
# Support for RSS feeds parser
@ -323,5 +324,7 @@ setup(
'dbus': ['dbus-python'],
# Support for Twilio integration
'twilio': ['twilio'],
# Support for Github integration
'github': ['pytz'],
},
)