reservations: Add task to sync with Google Calendar

This commit is contained in:
Adam Goldsmith 2024-08-05 22:08:06 -04:00
parent 075812face
commit 35c063c44e
9 changed files with 493 additions and 1 deletions

View File

@ -18,6 +18,10 @@ class Base(Configuration):
credentials_directory = os.getenv("CREDENTIALS_DIRECTORY") credentials_directory = os.getenv("CREDENTIALS_DIRECTORY")
if credentials_directory is not None: if credentials_directory is not None:
for credential in Path(credentials_directory).iterdir(): for credential in Path(credentials_directory).iterdir():
if credential.name.endswith("_path"):
os.environ.setdefault(
credential.name.removesuffix("_path"), str(credential.resolve())
)
if credential.name.isupper(): if credential.name.isupper():
os.environ.setdefault(credential.name, credential.read_text()) os.environ.setdefault(credential.name, credential.read_text())
@ -226,6 +230,8 @@ class NonCIBase(Base):
environ_required=True, environ_prefix=None environ_required=True, environ_prefix=None
) )
GOOGLE_SERVICE_ACCOUNT_FILE = values.PathValue(environ_prefix=None)
HID_DOOR_USERNAME = values.Value(environ_required=True, environ_prefix=None) HID_DOOR_USERNAME = values.Value(environ_required=True, environ_prefix=None)
HID_DOOR_PASSWORD = values.SecretValue(environ_prefix=None) HID_DOOR_PASSWORD = values.SecretValue(environ_prefix=None)

255
pdm.lock
View File

@ -5,7 +5,7 @@
groups = ["default", "debug", "dev", "lint", "server", "typing"] groups = ["default", "debug", "dev", "lint", "server", "typing"]
strategy = ["inherit_metadata"] strategy = ["inherit_metadata"]
lock_version = "4.5.0" lock_version = "4.5.0"
content_hash = "sha256:cdef77160cecd840eeaef2f45c9d4afc0701146cf0b78e8b5cb782bc57144ad7" content_hash = "sha256:b76b2cc9bd24beecef27ef102062710607993f9b4c318e7bda89b2217efccd29"
[[metadata.targets]] [[metadata.targets]]
requires_python = "==3.11.*" requires_python = "==3.11.*"
@ -187,6 +187,18 @@ files = [
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] ]
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version = "5.4.0"
requires_python = ">=3.7"
summary = "Extensible memoizing collections and decorators"
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name = "certifi" name = "certifi"
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@ -534,6 +546,21 @@ files = [
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] ]
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"Django>=3.2",
]
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name = "django-mysql" name = "django-mysql"
version = "4.14.0" version = "4.14.0"
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] ]
[[package]]
name = "django-template-partials"
version = "24.2"
summary = "django-template-partials"
groups = ["default"]
marker = "python_version == \"3.11\""
dependencies = [
"Django",
]
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]
[[package]] [[package]]
name = "django-vite" name = "django-vite"
version = "3.0.4" version = "3.0.4"
@ -925,6 +966,107 @@ files = [
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] ]
[[package]]
name = "google-api-core"
version = "2.19.1"
requires_python = ">=3.7"
summary = "Google API client core library"
groups = ["default"]
marker = "python_version == \"3.11\""
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]
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version = "2.139.0"
requires_python = ">=3.7"
summary = "Google API Client Library for Python"
groups = ["default"]
marker = "python_version == \"3.11\""
dependencies = [
"google-api-core!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.0,<3.0.0.dev0,>=1.31.5",
"google-auth!=2.24.0,!=2.25.0,<3.0.0.dev0,>=1.32.0",
"google-auth-httplib2<1.0.0,>=0.2.0",
"httplib2<1.dev0,>=0.19.0",
"uritemplate<5,>=3.0.1",
]
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]
[[package]]
name = "google-auth"
version = "2.32.0"
requires_python = ">=3.7"
summary = "Google Authentication Library"
groups = ["default"]
marker = "python_version == \"3.11\""
dependencies = [
"cachetools<6.0,>=2.0.0",
"pyasn1-modules>=0.2.1",
"rsa<5,>=3.1.4",
]
files = [
{file = "google_auth-2.32.0-py2.py3-none-any.whl", hash = "sha256:53326ea2ebec768070a94bee4e1b9194c9646ea0c2bd72422785bd0f9abfad7b"},
{file = "google_auth-2.32.0.tar.gz", hash = "sha256:49315be72c55a6a37d62819e3573f6b416aca00721f7e3e31a008d928bf64022"},
]
[[package]]
name = "google-auth-httplib2"
version = "0.2.0"
summary = "Google Authentication Library: httplib2 transport"
groups = ["default"]
marker = "python_version == \"3.11\""
dependencies = [
"google-auth",
"httplib2>=0.19.0",
]
files = [
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]
[[package]]
name = "google-auth-oauthlib"
version = "1.2.1"
requires_python = ">=3.6"
summary = "Google Authentication Library"
groups = ["default"]
marker = "python_version == \"3.11\""
dependencies = [
"google-auth>=2.15.0",
"requests-oauthlib>=0.7.0",
]
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]
[[package]]
name = "googleapis-common-protos"
version = "1.63.2"
requires_python = ">=3.7"
summary = "Common protobufs used in Google APIs"
groups = ["default"]
marker = "python_version == \"3.11\""
dependencies = [
"protobuf!=3.20.0,!=3.20.1,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5,<6.0.0.dev0,>=3.20.2",
]
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[[package]] [[package]]
name = "h11" name = "h11"
version = "0.14.0" version = "0.14.0"
@ -980,6 +1122,22 @@ files = [
{file = "html5lib-1.1.tar.gz", hash = "sha256:b2e5b40261e20f354d198eae92afc10d750afb487ed5e50f9c4eaf07c184146f"}, {file = "html5lib-1.1.tar.gz", hash = "sha256:b2e5b40261e20f354d198eae92afc10d750afb487ed5e50f9c4eaf07c184146f"},
] ]
[[package]]
name = "httplib2"
version = "0.22.0"
requires_python = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
summary = "A comprehensive HTTP client library."
groups = ["default"]
marker = "python_version == \"3.11\""
dependencies = [
"pyparsing!=3.0.0,!=3.0.1,!=3.0.2,!=3.0.3,<4,>=2.4.2; python_version > \"3.0\"",
"pyparsing<3,>=2.4.2; python_version < \"3.0\"",
]
files = [
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[[package]] [[package]]
name = "httptools" name = "httptools"
version = "0.6.1" version = "0.6.1"
@ -1286,6 +1444,18 @@ files = [
{file = "nh3-0.2.18.tar.gz", hash = "sha256:94a166927e53972a9698af9542ace4e38b9de50c34352b962f4d9a7d4c927af4"}, {file = "nh3-0.2.18.tar.gz", hash = "sha256:94a166927e53972a9698af9542ace4e38b9de50c34352b962f4d9a7d4c927af4"},
] ]
[[package]]
name = "oauthlib"
version = "3.2.2"
requires_python = ">=3.6"
summary = "A generic, spec-compliant, thorough implementation of the OAuth request-signing logic"
groups = ["default"]
marker = "python_version == \"3.11\""
files = [
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]
[[package]] [[package]]
name = "odfpy" name = "odfpy"
version = "1.4.1" version = "1.4.1"
@ -1409,6 +1579,34 @@ files = [
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] ]
[[package]]
name = "proto-plus"
version = "1.24.0"
requires_python = ">=3.7"
summary = "Beautiful, Pythonic protocol buffers."
groups = ["default"]
marker = "python_version == \"3.11\""
dependencies = [
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]
files = [
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[[package]]
name = "protobuf"
version = "5.27.3"
requires_python = ">=3.8"
summary = ""
groups = ["default"]
marker = "python_version == \"3.11\""
files = [
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[[package]] [[package]]
name = "ptyprocess" name = "ptyprocess"
version = "0.7.0" version = "0.7.0"
@ -1494,6 +1692,18 @@ files = [
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] ]
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name = "pyparsing"
version = "3.1.2"
requires_python = ">=3.6.8"
summary = "pyparsing module - Classes and methods to define and execute parsing grammars"
groups = ["default"]
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name = "pyphen" name = "pyphen"
version = "0.16.0" version = "0.16.0"
@ -1590,6 +1800,37 @@ files = [
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] ]
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version = "2.0.0"
requires_python = ">=3.4"
summary = "OAuthlib authentication support for Requests."
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version = "2.2.2" version = "2.2.2"

View File

@ -40,6 +40,10 @@ dependencies = [
"django-bootstrap5~=24.2", "django-bootstrap5~=24.2",
"django-configurations[database,email]~=2.5", "django-configurations[database,email]~=2.5",
"django-vite~=3.0", "django-vite~=3.0",
"django-template-partials~=24.2",
"google-api-python-client~=2.139",
"google-auth-oauthlib~=1.2",
"django-model-utils~=4.5",
] ]
requires-python = ">=3.11" requires-python = ">=3.11"
@ -80,6 +84,7 @@ indent = 2
blank_line_after_tag = "load,extends" blank_line_after_tag = "load,extends"
max_blank_lines = 1 max_blank_lines = 1
ignore = "T003,H017,H021,H030,H031" ignore = "T003,H017,H021,H030,H031"
custom_blocks = "partialdef"
format_css = true format_css = true
format_js = true format_js = true

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@ -1,6 +1,24 @@
from django.apps import AppConfig from django.apps import AppConfig
from django.db.models.signals import post_migrate
def post_migrate_callback(sender, **kwargs):
from django_q.models import Schedule
from cmsmanage.django_q2_helper import ensure_scheduled
from .tasks.sync_google_calendar import sync_reservations_with_google_calendar
ensure_scheduled(
sync_reservations_with_google_calendar,
schedule_type=Schedule.MINUTES,
minutes=5,
)
class ReservationsConfig(AppConfig): class ReservationsConfig(AppConfig):
default_auto_field = "django.db.models.BigAutoField" default_auto_field = "django.db.models.BigAutoField"
name = "reservations" name = "reservations"
def ready(self):
post_migrate.connect(post_migrate_callback, sender=self)

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View File

@ -0,0 +1,21 @@
import logging
from django.core.management.base import BaseCommand
from reservations.tasks.sync_google_calendar import (
logger,
sync_reservations_with_google_calendar,
)
class Command(BaseCommand):
def handle(self, *args, verbosity: int, **options):
verbosity_levels = {
0: logging.ERROR,
1: logging.WARNING,
2: logging.INFO,
3: logging.DEBUG,
}
logger.setLevel(verbosity_levels.get(verbosity, logging.WARNING))
sync_reservations_with_google_calendar()

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@ -0,0 +1,189 @@
import logging
from datetime import date, datetime
from http import HTTPStatus
from django.conf import settings
from django.utils import timezone
from google.oauth2 import service_account
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from cmsmanage.django_q2_helper import q_task_group
from reservations.models import Reservation, Resource
logger = logging.getLogger(__name__)
SCOPES = ["https://www.googleapis.com/auth/calendar"]
def parse_google_calendar_datetime(dt) -> date | datetime:
if "date" in dt:
return date.fromisoformat(dt["date"])
elif "dateTime" in dt:
return datetime.fromisoformat(dt["dateTime"])
else:
raise Exception("Google Calendar event with out a start/end date/dateTime")
def update_calendar_event(
service, resource: Resource, existing_event, reservation: Reservation
):
changes = reservation.make_google_calendar_event()
# skip update if no changes are needed
if (
parse_google_calendar_datetime(existing_event["start"]) != reservation.start
or parse_google_calendar_datetime(existing_event["end"]) != reservation.end
or any(
existing_event[k] != v
for k, v in changes.items()
if k not in ("start", "end")
)
):
logger.debug("Updating event")
new_event = existing_event | changes
service.events().update(
calendarId=resource.google_calendar,
eventId=reservation.google_calendar_event_id,
body=new_event,
).execute()
def insert_calendar_event(service, resource: Resource, reservation: Reservation):
new_gcal_event = reservation.make_google_calendar_event()
created_event = (
service.events()
.insert(
calendarId=resource.google_calendar,
body=new_gcal_event,
)
.execute()
)
reservation.google_calendar_event_id = created_event["id"]
reservation.save()
def sync_resource_from_google_calendar(
service, resource: Resource, now: datetime
) -> set[str]:
request = (
service.events()
.list(
calendarId=resource.google_calendar,
timeMin=now.isoformat(timespec="seconds"),
maxResults=2500,
)
.execute()
)
if "nextPageToken" in request:
# TODO: implement pagination
raise Exception(
"More events than fit on a page, and pagination not implemented"
)
events = request["items"]
for event in events:
if (
"extendedProperties" in event
and "private" in event["extendedProperties"]
and event["extendedProperties"]["private"].get("cmsmanage") == "1"
):
try:
reservation = resource.reservation_set.get_subclass(
google_calendar_event_id=event["id"]
)
# event exists in both Google Calendar and database, check for update
logger.debug(
"Event in Google Calendar found in database: checking for update | %s",
event["id"],
)
update_calendar_event(service, resource, event, reservation)
except Reservation.DoesNotExist:
# reservation deleted in database, so remove from Google Calendar
logger.info(
"Event in Google Calendar not found in database: deleting | %s",
event["id"],
)
service.events().delete(
calendarId=resource.google_calendar,
eventId=event["id"],
sendUpdates="none",
).execute()
else:
# TODO: handle external events (either Bookly or manually created)
# NOTE: this will also need to check for deleted events
logger.debug(
"Event in Google Calendar not originated by CMSManage: skipping for now | %s",
event["id"],
)
return {event["id"] for event in events}
def sync_resource_from_database(
service, resource: Resource, now: datetime, existing_event_ids: set[str]
):
reservations = resource.reservation_set.filter(end__gt=now).select_subclasses()
# TODO: this could probably be more efficient?
for reservation in reservations:
if not reservation.google_calendar_event_id:
logger.info(
"Event in database has no Google Calendar event ID: inserting | %s",
reservation.google_calendar_event_id,
)
insert_calendar_event(service, resource, reservation)
# reservation has an event id, so check if we already handled it earlier
elif reservation.google_calendar_event_id not in existing_event_ids:
# this event was in Google Calendar at some point (possibly for a different
# resource/calendar), but did not appear in list(). Try to update it, then
# fall back to insert
logger.info(
"Reservation with event id not in Google Calendar: trying update | %s",
reservation.google_calendar_event_id,
)
try:
event = (
service.events()
.get(
calendarId=resource.google_calendar,
eventId=reservation.google_calendar_event_id,
)
.execute()
)
update_calendar_event(service, resource, event, reservation)
except HttpError as error:
if error.status_code == HTTPStatus.NOT_FOUND:
logger.info(
"Event in database not in Google Calendar: inserting | %s",
reservation.google_calendar_event_id,
)
insert_calendar_event(service, resource, reservation)
else:
raise
def sync_resource(service, resource: Resource, now: datetime):
logger.info(
"Checking calendar %s for resource %s", resource.google_calendar, resource
)
existing_event_ids = sync_resource_from_google_calendar(service, resource, now)
sync_resource_from_database(service, resource, now, existing_event_ids)
@q_task_group("Sync Reservations with Google Calendar")
def sync_reservations_with_google_calendar():
service = build(
"calendar",
"v3",
credentials=service_account.Credentials.from_service_account_file(
settings.GOOGLE_SERVICE_ACCOUNT_FILE,
scopes=SCOPES,
),
)
now = timezone.now()
for resource in Resource.objects.all():
sync_resource(service, resource, now)