Add notes on how to update the Google sheets credentials

[turbot] / gsheets-authenticate.py

diff --git a/gsheets-authenticate.py b/gsheets-authenticate.py
index 7140b8ecac3359b00f45176158859e3b1e5a8ad6..ca0d0fa10d7182a774e45331fa6a058fb85a4234 100755 (executable)
--- a/gsheets-authenticate.py
+++ b/gsheets-authenticate.py
@@ -1,14 +1,18 @@
 #!/usr/bin/env python3
 
 import pickle
+import base64
 import os.path
 from google_auth_oauthlib.flow import InstalledAppFlow
 from google.auth.transport.requests import Request
 
-# If modifying these scopes, delete the file token.pickle.
-SCOPES = ['https://www.googleapis.com/auth/spreadsheets']
+TOKEN_FILE = ".gsheets-pickle.base64"
 
-TOKEN_FILE = ".gsheets-token.pickle"
+# If modifying these scopes, delete the token file
+SCOPES = [
+    'https://www.googleapis.com/auth/spreadsheets',
+    'https://www.googleapis.com/auth/drive'
+]
 
 def main():
     """Allows user to authenticate for the Sheets API.
@@ -16,26 +20,32 @@ def main():
     Resulting authorization token is stored in token.pickle.
     """
     creds = None
-    # The file token.pickle stores the user's access and refresh tokens, and is
+    # The token file stores the user's access and refresh tokens, and is
     # created automatically when the authorization flow completes for the first
     # time.
     if os.path.exists(TOKEN_FILE):
-        with open(TOKEN_FILE, 'rb') as token:
-            creds = pickle.load(token)
+        with open(TOKEN_FILE, 'rb') as token_file:
+            creds_base64 = token_file.read()
+            creds_pickle = base64.b64decode(creds_base64)
+            creds = pickle.loads(creds_pickle)
 
     # If there are no (valid) credentials available, let the user log in.
     if not creds or not creds.valid:
         if creds and creds.expired and creds.refresh_token:
+            print("Token seems to have expired. Refreshing.")
             creds.refresh(Request())
         else:
             flow = InstalledAppFlow.from_client_secrets_file(
-                'credentials.json', SCOPES)
+                '.gsheets-creds.json', SCOPES)
             creds = flow.run_local_server(port=0)
         # Save the credentials for the next run
-        with open(TOKEN_FILE, 'wb') as token:
-            pickle.dump(creds, token)
-
-    print("Token now saved in {}".format(TOKEN_FILE))
+        with open(TOKEN_FILE, 'wb') as token_file:
+            creds_pickle = pickle.dumps(creds)
+            creds_base64 = base64.b64encode(creds_pickle)
+            token_file.write(creds_base64)
+            print("Token now saved in {}".format(TOKEN_FILE))
+    else:
+        print("Valid token in {} left unchanged.".format(TOKEN_FILE))
 
 if __name__ == '__main__':
     main()