Add googleapiauth command

gsoc/management/commands/googleapiauth.py

@@ -0,0 +1,31 @@
+from google_auth_oauthlib.flow import InstalledAppFlow
+import os.path
+
+from google.auth.transport.requests import Request
+
+from django.core.management import BaseCommand
+
+from gsoc.settings import GOOGLE_API_SCOPES, GOOGLE_API_CLIENT_CONFIG
+
+
+class Command(BaseCommand):
+    help = 'Generates the api token pickle for authenticating Google API.'
+    requires_system_checks = False   # for debugging
+
+    def handle(self, *args, **options):
+        creds = None
+        if os.path.exists('gcal_api_token.pickle'):
+            with open('gcal_api_token.pickle', 'rb') as token:
+                creds = pickle.load(token)
+
+        if not creds or not creds.valid:
+            if creds and creds.expired and creds.refresh_token:
+                creds.Refresh(Request())
+            else:
+                flow = InstalledAppFlow.from_client_config(
+                    GOOGLE_API_CLIENT_CONFIG, GOOGLE_API_SCOPES
+                )
+                creds = flow.run_console()
+
+            with open('gcal_api_token.pickle', 'wb') as token:
+                pickle.dump(creds, token)

settings_local.py.template

@@ -53,3 +53,19 @@ REPLY_EMAIL = 'gsoc-admins@python.org'
 RECAPTCHA_PRIVATE_KEY = '6LdAVqIUAAAAACv_tNPudwx_pD9dbjtwvr3WwQ9Y'
 RECAPTCHA_PUBLIC_KEY = '6LdAVqIUAAAAAAt6baSHpGXr1LvJ0n1aCl_oqukj'
 RECAPTCHA_THRESHOLD = 0.1
+
+# google oauth client_config
+GOOGLE_API_SCOPES = [
+    'https://www.googleapis.com/auth/calendar.events',
+]
+GOOGLE_API_CLIENT_CONFIG = {
+    "installed": {
+        "client_id": "",
+        "project_id": "",
+        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
+        "token_uri": "https://oauth2.googleapis.com/token",
+        "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
+        "client_secret": "p62APV3jXWciaWRzk9D9YAMm",
+        "redirect_uris": ["urn:ietf:wg:oauth:2.0:oob", "http://localhost"]
+    }
+}