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(Lianja) Yahoo Mail OAuth2 Access Token for Desktop AppSee more Yahoo Mail ExamplesDemonstrates how to get a Yahoo Email OAuth2 access token from a desktop application or script. This example requires a browser window to be displayed to allow the Yahoo account owner to authorize the access. The code for displaying the web browser is omitted. Suggestions for a few programming languages are provided in code comments. You'll need to add the code to display a web browser and navigate to the URL returned by the call to oauth2.StartAuth. For more information, see https://developer.yahoo.com/oauth2/guide/
// 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. loOauth2 = createobject("CkOAuth2") // For a desktop app, you must provide a script on your web server to redirect to "http://localhost/<portNumber>" // It can be written in C#, PHP, or whatever desired. It must include the query string in the redirection. // For example, in PHP your script would look like this: // <?php // header( 'Location: http://localhost:3017?' . $_SERVER['QUERY_STRING'] ); // ?> loOauth2.AppCallbackUrl = "https://yourwebserver.com/OAuth2.php" loOauth2.ListenPort = 3017 loOauth2.AuthorizationEndpoint = "https://api.login.yahoo.com/oauth2/request_auth" loOauth2.TokenEndpoint = "https://api.login.yahoo.com/oauth2/get_token" // Replace these with actual values. loOauth2.ClientId = "CLIENT_ID" loOauth2.ClientSecret = "CLIENT_SECRET" // Do not send the "scope" query param for Yahoo OAuth2. loOauth2.UncommonOptions = "NO_OAUTH2_SCOPE" // Begin the OAuth2 three-legged flow. This returns a URL that should be loaded in a browser. lcUrl = loOauth2.StartAuth() if (loOauth2.LastMethodSuccess <> .T.) then ? loOauth2.LastErrorText release loOauth2 return endif ? lcUrl // At this point, your application should load the URL in a browser. // For example, // in C#: System.Diagnostics.Process.Start(url); // in Java: Desktop.getDesktop().browse(new URI(url)); // in VBScript: Set wsh=WScript.CreateObject("WScript.Shell") // wsh.Run url // in Xojo: ShowURL(url) (see http://docs.xojo.com/index.php/ShowURL) // in Dataflex: Runprogram Background "c:\Program Files\Internet Explorer\iexplore.exe" sUrl // The Google account owner would interactively accept or deny the authorization request. // Add the code to load the url in a web browser here... // Add the code to load the url in a web browser here... // Add the code to load the url in a web browser here... // System.Diagnostics.Process.Start(url); // Now wait for the authorization. // We'll wait for a max of 30 seconds. lnNumMsWaited = 0 do while (lnNumMsWaited < 30000) and (loOauth2.AuthFlowState < 3) loOauth2.SleepMs(100) lnNumMsWaited = lnNumMsWaited + 100 enddo // If there was no response from the browser within 30 seconds, then // the AuthFlowState will be equal to 1 or 2. // 1: Waiting for Redirect. The OAuth2 background thread is waiting to receive the redirect HTTP request from the browser. // 2: Waiting for Final Response. The OAuth2 background thread is waiting for the final access token response. // In that case, cancel the background task started in the call to StartAuth. if (loOauth2.AuthFlowState < 3) then loOauth2.Cancel() ? "No response from the browser!" release loOauth2 return endif // Check the AuthFlowState to see if authorization was granted, denied, or if some error occurred // The possible AuthFlowState values are: // 3: Completed with Success. The OAuth2 flow has completed, the background thread exited, and the successful JSON response is available in AccessTokenResponse property. // 4: Completed with Access Denied. The OAuth2 flow has completed, the background thread exited, and the error JSON is available in AccessTokenResponse property. // 5: Failed Prior to Completion. The OAuth2 flow failed to complete, the background thread exited, and the error information is available in the FailureInfo property. if (loOauth2.AuthFlowState = 5) then ? "OAuth2 failed to complete." ? loOauth2.FailureInfo release loOauth2 return endif if (loOauth2.AuthFlowState = 4) then ? "OAuth2 authorization was denied." ? loOauth2.AccessTokenResponse release loOauth2 return endif if (loOauth2.AuthFlowState <> 3) then ? "Unexpected AuthFlowState:" + str(loOauth2.AuthFlowState) release loOauth2 return endif // Save the full JSON access token response to a file. loSbJson = createobject("CkStringBuilder") loSbJson.Append(loOauth2.AccessTokenResponse) loSbJson.WriteFile("qa_data/tokens/yahooMail.json","utf-8",.F.) // 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" // } ? "OAuth2 authorization granted!" ? "Access Token: " + loOauth2.AccessToken release loOauth2 release loSbJson |
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