(VBScript) Slack OAuth2

See more OAuth2 Examples

Slack OAuth2

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.OAuth2")
set oauth2 = CreateObject("Chilkat.OAuth2")

' This example is for desktop applicatons (it is not for code that runs on a web server).
' You'll need to add a line (or a few lines of code) to popup a web browser that navigates to a URL.
' This is explained in the comments below.

' You'll also need to install 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'] );
' ?>

' This is the Redirect URL defined for your Slack App in the Slack developer portal, and contains the above PHP.
oauth2.AppCallbackUrl = "https://yourwebserver.com/oauth2.php"
oauth2.ListenPort = 3017

oauth2.AuthorizationEndpoint = "https://slack.com/oauth/authorize"
oauth2.TokenEndpoint = "https://slack.com/api/oauth.access"

' Replace these with actual values.
oauth2.ClientId = "CLIENT_ID"
oauth2.ClientSecret = "CLIENT_SECRET"

oauth2.Scope = "team:read users:read"

' Begin the OAuth2 three-legged flow.  This returns a URL that should be loaded in a browser.
url = oauth2.StartAuth()
If (oauth2.LastMethodSuccess <> 1) Then
    outFile.WriteLine(oauth2.LastErrorText)
    WScript.Quit
End If

' 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 Microsoft 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...

' Now wait for the authorization.
' We'll wait for a max of 30 seconds.
numMsWaited = 0
Do While (numMsWaited < 30000) And (oauth2.AuthFlowState < 3)
    oauth2.SleepMs 100
    numMsWaited = numMsWaited + 100
Loop

' 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 (oauth2.AuthFlowState < 3) Then
    success = oauth2.Cancel()
    outFile.WriteLine("No response from the browser!")
    WScript.Quit
End If

' 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 (oauth2.AuthFlowState = 5) Then
    outFile.WriteLine("OAuth2 failed to complete.")
    outFile.WriteLine(oauth2.FailureInfo)
    WScript.Quit
End If

If (oauth2.AuthFlowState = 4) Then
    outFile.WriteLine("OAuth2 authorization was denied.")
    outFile.WriteLine(oauth2.AccessTokenResponse)
    WScript.Quit
End If

If (oauth2.AuthFlowState <> 3) Then
    outFile.WriteLine("Unexpected AuthFlowState:" & oauth2.AuthFlowState)
    WScript.Quit
End If

outFile.WriteLine("OAuth2 authorization granted!")
outFile.WriteLine("Access Token = " & oauth2.AccessToken)

' Get the full JSON response:
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set json = CreateObject("Chilkat.JsonObject")
success = json.Load(oauth2.AccessTokenResponse)
json.EmitCompact = 0

' The JSON response looks like this:

' {
'   "ok": true,
'   "access_token": "xoxp-348475395242-348621810805-4768936228341-9f512b295124e7c9846ce63cb1464c4d",
'   "scope": "identify,team:read,users:read",
'   "user_id": "UA8HZRUPP",
'   "team_id": "TA3DZBN74",
'   "enterprise_id": null,
'   "team_name": "Chilkat Testing"
' }

outFile.WriteLine(json.Emit())

' Save the JSON to a file for future requests.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.FileAccess")
set fac = CreateObject("Chilkat.FileAccess")
success = fac.WriteEntireTextFile("qa_data/tokens/slack.json",json.Emit(),"utf-8",0)

outFile.Close