Oauth2 for SharePoint 365 REST

Question

I\'m trying to connect to Sharepoint Online (Sharepoint 365?) content using OAuth2 and the REST API. I need to do this from Python as it is an addition to an existing applicati

Answer 1

I know this is old by had to deal with similar problem and have 2.5 solutions.

This solution is specifically for the federated logins.

Simple hacky solutions works like a magic for files :)

1. On Windows 10 - the silliest solution:

   • First login to your sharepoint with Internet Exploer/Edge. Must be IE/Edge.
   • Then in Start-> Run dialog or any Windows Explorer address bar do this: \\@SSL\rest\of_the\path. Note @SSL after host name.
   • Make sure to replace all the forward slashes with backslashes.
   • This makes sure that your login credentials are captured by the system.
   • Then navigate to "This PC", menu "Computer->Map Network Drive" and paste either that same path from above or your normal URL https:///rest/of_the/path into Folder text field of Map Network Drive.
   • Now you have Sharepoint folder mapped as regular network drive X:\! Which allows you to treat is just as normal file system folder from any program or programming language.
   • This solution uses WebDav WebClient and by default you will hit a 50MB limit! Worry not follow these steps to release yourself from the shackles of the silly limit.

2. Simple Hacky.

   • Open your browsers and open the 'Developer Tools'.
   • Navigate to 'Network' tab of 'Developer Tools'
   • With Network tab open login to your sharepoint site.
   • Click on any of the requests and you shall see that every single Request Header has a Cookie with FedAuth=some_very_long_base64_encoded_xml_struct;rtFa=something_else_long.
   • Basically you need these two cookies FedAuth and rtFa.
   • Now with every GET POST (curl, wget etc) request to the Sharepoint just add a new header Cookie with the value FedAuth=;rtFa=.

3. Programmatic-hacky (example in python on windows), essentially #2 but cookie manipulation all done programmatically.

   • We shall steal the cookie directly from the kid... I mean from the Chrome browser.
   • Navigate to your Sharepoint With the chrome browser and perform all the necessary login actions.
   • Steal the cookie gist. Plagiarized from here.
   • Use the cookie gist.
   • REST of Sharepoint REST API wisdom here and ref here.

4. Finally open a beer enjoy your day.