Question

是否有一个完全成熟的基于Django的Google日历集成示例？我正在阅读Google's example page，但他们在底部的链接已经过时了。

我特别擅长使用刷新令牌，因为Google的示例仅关注如何获取访问令牌。这就是我到目前为止所做的：

@staff_member_required
def authorize_access(request):
    return redirect(get_flow(request).step1_get_authorize_url())

@staff_member_required
def oauth2_callback(request):
    credentials = get_flow(request).step2_exchange(request.GET['code'])

    store = get_store()
    store.put(credentials)
    credentials.set_store(store)

    return redirect('...')

def get_flow(request):
    flow = client.flow_from_clientsecrets(os.path.join(CREDENTIAL_DIR, CLIENT_SECRET_FILE),
                                      SCOPES,
                                      redirect_uri='%s://%s/google-calendar/oauth2-callback/' % (request.META['wsgi.url_scheme'], request.META['HTTP_HOST'],))
    flow.params['access_type'] = 'offline'
    flow.params['approval_prompt'] = 'force'

    return flow

def get_store():
    return oauth2client.file.Storage(os.path.join(CREDENTIAL_DIR, ACCESS_TOKEN_FILE))

def has_valid_api_credentials():
    credentials = get_store().get()
    return credentials is not None

def build_service():
    credentials = get_store().get()

    if not credentials:
        return None
    elif credentials.access_token_expired:
        http = credentials.refresh(httplib2.Http())
        http = get_store().get().authorize(http)
    else:
        http = credentials.authorize(httplib2.Http())

    service = discovery.build('calendar', 'v3', http=http)

    return service

def create_events(rental_request):
    service = build_service()

    event = service.events().insert(...).execute()

Answer 1

研究了很多不同的方法，我发现服务器到服务器的身份验证是我想要的。这样，没有用户必须明确授予权限并且获得的身份验证代码不必更新。相反，使用服务帐户，服务器可以自己进行调用。

在开始编码之前，您必须设置此类服务帐户并将其添加到您希望服务帐户访问的日历中。 Google已经写下了创建帐户here的三个步骤。然后，转到https://calendar.google.com，在屏幕左侧找到要与新服务帐户共享的日历，然后点击旁边的三角形。从下拉菜单中选择日历设置。这会将您带到一个屏幕，您可以在其中找到以后需要的日历ID（将其写下来），并在顶部显示一个选项卡以共享对日历的访问权限。作为＆＃34;人＆＃34;从服务帐户插入电子邮件地址，为其分配相应的权限，然后点击保存（如果您不点击保存服务帐户，则无法添加）。

这个代码实际上非常优雅：

import os
from datetime import timedelta
import datetime
import pytz

import httplib2
from googleapiclient.discovery import build
from oauth2client.service_account import ServiceAccountCredentials

service_account_email = 'XXX@YYY.iam.gserviceaccount.com'

CLIENT_SECRET_FILE = 'creds.p12'

SCOPES = 'https://www.googleapis.com/auth/calendar'
scopes = [SCOPES]

def build_service():
    credentials = ServiceAccountCredentials.from_p12_keyfile(
        service_account_email=service_account_email,
        filename=CLIENT_SECRET_FILE,
        scopes=SCOPES
    )

    http = credentials.authorize(httplib2.Http())

    service = build('calendar', 'v3', http=http)

    return service


def create_event():
    service = build_service()

    start_datetime = datetime.datetime.now(tz=pytz.utc)
    event = service.events().insert(calendarId='<YOUR EMAIL HERE>@gmail.com', body={
        'summary': 'Foo',
        'description': 'Bar',
        'start': {'dateTime': start_datetime.isoformat()},
        'end': {'dateTime': (start_datetime + timedelta(minutes=15)).isoformat()},
    }).execute()

    print(event)

我正在使用oauth2client 2.2.0版（pip install oauth2client）。

我希望这个答案有所帮助：）

Answer 2

由于这篇文章是很久以前的，所以我想分享我的2020年版本。感谢这篇文章。为我实现目标提供了很多帮助。

import datetime
from datetime import timedelta

import pytz
from googleapiclient.discovery import build
from oauth2client.service_account import ServiceAccountCredentials

service_account_email = "INSERT_HERE"
SCOPES = ["https://www.googleapis.com/auth/calendar"]
credentials = ServiceAccountCredentials.from_json_keyfile_name(
    filename="FILENAME.json", scopes=SCOPES
)


def build_service():
    service = build("calendar", "v3", credentials=credentials)
    return service


def create_event():
    service = build_service()

    start_datetime = datetime.datetime.now(tz=pytz.utc)
    event = (
        service.events()
        .insert(
            calendarId="CALENDARID@group.calendar.google.com",
            body={
                "summary": "Foo",
                "description": "Bar",
                "start": {"dateTime": start_datetime.isoformat()},
                "end": {
                    "dateTime": (start_datetime + timedelta(minutes=15)).isoformat()
                },
            },
        )
        .execute()
    )

    print(event)

create_event()

Answer 3

此处仅需注意：尽管代码可以正常工作，但根据https://github.com/googleapis/google-auth-library-python/blob/7a8641a7f0718c0dce413436f23691e8590face1/docs/index.rst，最近不推荐使用oauth2client，而推荐使用google-auth库-https://github.com/googleapis/google-auth-library-python/tree/edfe24602051969e32917e82bcedd2bace43e260

您可以在这里找到新库的文档-https://google-auth.readthedocs.io/en/latest/user-guide.html

要使用新库，可以将代码编写为

import datetime
from datetime import timedelta

import pytz

from google.oauth2 import service_account

from googleapiclient.discovery import build

service_account_email = "app-calendar@xxxxxxxxx.iam.gserviceaccount.com"
SCOPES = ["https://www.googleapis.com/auth/calendar"]

credentials = service_account.Credentials.from_service_account_file('google_calendar_credential.json')
scoped_credentials = credentials.with_scopes(SCOPES)


def build_service():
    service = build("calendar", "v3", credentials=scoped_credentials)
    return service


def create_event():
    service = build_service()

    start_datetime = datetime.datetime.now(tz=pytz.utc)
    event = (
        service.events()
        .insert(
            calendarId="primary",
            body={
                "summary": "Foo 2",
                "description": "Bar",
                "start": {"dateTime": start_datetime.isoformat()},
                "end": {
                    "dateTime": (start_datetime + timedelta(minutes=15)).isoformat()
                },
            },
        )
        .execute()
    )

    print(event)

create_event()

由于我没有足够的声誉将其发布为评论，因此我将其发布为单独的帖子

谷歌与Django的日历集成

3 个答案: