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(PureBasic) Office365 OAuth2 Resource Owner Password Credentials Grant for SMTP, IMAP, POPDemonstrates how to get an OAuth2 access token for use with Office 365 in the SMTP, IMAP, and POP3 protocols using the resource owner password credentials grant. This is a way of getting an OAuth2 access token for the O365 account you own, WITHOUT needing to grant access interactively via a browser. Note: This example requires Chilkat v11.0.0 or greater.
IncludeFile "CkHttpResponse.pb" IncludeFile "CkHttp.pb" IncludeFile "CkFileAccess.pb" IncludeFile "CkHttpRequest.pb" Procedure ChilkatExample() success.i = 0 ; This example requires the Chilkat API to have been previously unlocked. ; See Global Unlock Sample for sample code. ; Get an OAuth2 access token by sending a POST like this: ; POST {tenant}/oauth2/v2.0/token ; Host: login.microsoftonline.com ; Content-Type: application/x-www-form-urlencoded ; ; client_id=6731de76-14a6-49ae-97bc-6eba6914391e ; &client_secret=***************** ; &scope=user.read%20openid%20profile%20offline_access ; &username=MyUsername@myTenant.com ; &password=SuperS3cret ; &grant_type=password http.i = CkHttp::ckCreate() If http.i = 0 Debug "Failed to create object." ProcedureReturn EndIf req.i = CkHttpRequest::ckCreate() If req.i = 0 Debug "Failed to create object." ProcedureReturn EndIf CkHttpRequest::setCkHttpVerb(req, "POST") CkHttpRequest::setCkContentType(req, "application/x-www-form-urlencoded") ; Use the application ID for the client_id. ; (In Azure App Registrations, use the Application (client) ID) CkHttpRequest::ckAddParam(req,"client_id","CLIENT_ID") CkHttpRequest::ckAddParam(req,"client_secret","CLIENT_SECRET") CkHttpRequest::ckAddParam(req,"scope","openid profile offline_access https://outlook.office365.com/SMTP.Send https://outlook.office365.com/POP.AccessAsUser.All https://outlook.office365.com/IMAP.AccessAsUser.All") CkHttpRequest::ckAddParam(req,"username","my_email_address") CkHttpRequest::ckAddParam(req,"password","my_email_password") CkHttpRequest::ckAddParam(req,"grant_type","password") ; Replace "{tenant}" with your tenant ID, such as "112d7ed6-71bf-4eba-a866-738364321bfc".req.HttpVerb = "POST"; resp.i = CkHttpResponse::ckCreate() If resp.i = 0 Debug "Failed to create object." ProcedureReturn EndIf success = CkHttp::ckHttpReq(http,"https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token",req,resp) If success = 0 Debug CkHttp::ckLastErrorText(http) CkHttp::ckDispose(http) CkHttpRequest::ckDispose(req) CkHttpResponse::ckDispose(resp) ProcedureReturn EndIf statusCode.i = CkHttpResponse::ckStatusCode(resp) Debug "response status code: " + Str(statusCode) Debug "response body:" Debug CkHttpResponse::ckBodyStr(resp) ; The successful JSON response looks like this: ; ; { ; "token_type": "Bearer", ; "scope": "https://outlook.office365.com/IMAP.AccessAsUser.All https://outlook.office365.com/POP.AccessAsUser.All https://outlook.office365.com/SMTP.Send", ; "expires_in": 3599, ; "ext_expires_in": 3599, ; "access_token": "eyJ0eX ... 62Nyw", ; "refresh_token": "0.AAAA1n4t ... tNxyA", ; "id_token": "eyJ0eXA ... qdIGyOYw" ; } ; Save the JSON to a file for future requests. If statusCode = 200 fac.i = CkFileAccess::ckCreate() If fac.i = 0 Debug "Failed to create object." ProcedureReturn EndIf CkFileAccess::ckWriteEntireTextFile(fac,"qa_data/tokens/office365.json",CkHttpResponse::ckBodyStr(resp),"utf-8",0) EndIf CkHttp::ckDispose(http) CkHttpRequest::ckDispose(req) CkHttpResponse::ckDispose(resp) CkFileAccess::ckDispose(fac) ProcedureReturn EndProcedure |
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