CkPython Requires Chilkat v10.1.2+

Yahoo Mail OAuth2 Access Token for Desktop App

See more Yahoo Mail Examples

Demonstrates how to get a Yahoo Email OAuth2 access token from a desktop application or script. CkPython

import sys
import chilkat

success = False

#  First, you must define your app in Yahoo Developer (https://developer.yahoo.com/apps/) like this:

#  

#  This example requires the Chilkat API to have been previously unlocked.
#  See Global Unlock Sample for sample code.

oauth2 = chilkat.CkOAuth2()

#  Your applicaton must use your own public web server as an intermediate
#  to receive and forward the redirect to localhost.
#  See Using Your Web Server as an Intermediary for OAuth2 Redirect to localhost
oauth2.put_AppCallbackUrl("https://yourwebserver.com/oauth_redirect")
oauth2.put_ListenPort(3017)

oauth2.put_AuthorizationEndpoint("https://api.login.yahoo.com/oauth2/request_auth")
oauth2.put_TokenEndpoint("https://api.login.yahoo.com/oauth2/get_token")

#  Replace these with actual values.
oauth2.put_ClientId("CLIENT_ID")
oauth2.put_ClientSecret("CLIENT_SECRET")

#  Do not send the "scope" query param for Yahoo OAuth2.
oauth2.put_UncommonOptions("NO_OAUTH2_SCOPE")

#  Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
url = oauth2.startAuth()
if (oauth2.get_LastMethodSuccess() == False):
    print(oauth2.lastErrorText())
    sys.exit()

print("url = " + url)

#  Launch the default browser on the system and navigate to the url.
#  The LaunchBrowser method was added in Chilkat v10.1.2.
success = oauth2.LaunchBrowser(url)
if (success == False):
    print(oauth2.lastErrorText())
    sys.exit()

#  Wait for the user to approve or deny authorization in the browser.
numMsWaited = 0
while (numMsWaited < 90000) and (oauth2.get_AuthFlowState() < 3) :
    oauth2.SleepMs(100)
    numMsWaited = numMsWaited + 100

#  If the browser does not respond within the specified time, AuthFlowState will be:
#  
#  1: Waiting for Redirect - The OAuth2 background thread is waiting for the browser's redirect request.
#  2: Waiting for Final Response - The thread is awaiting the final access token response.
#  In either case, cancel the background task initiated by StartAuth.

if (oauth2.get_AuthFlowState() < 3):
    oauth2.Cancel()
    print("No response from the browser!")
    sys.exit()

#  Check AuthFlowState to determine if authorization was granted, denied, or failed:
#  
#  3: Success - OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
#  4: Access Denied - OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
#  5: Failure - OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

if (oauth2.get_AuthFlowState() == 5):
    print("OAuth2 failed to complete.")
    print(oauth2.failureInfo())
    sys.exit()

if (oauth2.get_AuthFlowState() == 4):
    print("OAuth2 authorization was denied.")
    print(oauth2.accessTokenResponse())
    sys.exit()

if (oauth2.get_AuthFlowState() != 3):
    print("Unexpected AuthFlowState:" + str(oauth2.get_AuthFlowState()))
    sys.exit()

#  Save the full JSON access token response to a file.
sbJson = chilkat.CkStringBuilder()
sbJson.Append(oauth2.accessTokenResponse())
sbJson.WriteFile("qa_data/tokens/yahooMail.json","utf-8",False)

#  The saved JSON response looks like this:

#  {
#    "access_token": "kCVQdnOdul...LHucA--",
#    "refresh_token": "AIenVXETSo0jklFBVkPS8vVm8E.Ej9ToRG.xDbDYmZ65WIs5t6CZhDrD",
#    "expires_in": 3600,
#    "token_type": "bearer",
#    "xoauth_yahoo_guid": "HGDQCVF5JB4YDOWHITQJFBHCWA"
#  }

print("OAuth2 authorization granted!")
print("Access Token: " + oauth2.accessToken())