PowerBuilder

Windows Credentials Manager - AutoSplit Larger Secrets

See more Secrets Examples

Secrets stored in the Windows Credentials Manager can be a maximum of 2560 bytes in size. If the content of the secret is too large for the Windows Credential Manager, Chilkat will automatically split the secret into parts and store a shorter JSON manifest.

Note: This example requires Chilkat v10.1.0 or later.

PowerBuilder

integer li_rc
long li_Success
oleobject loo_Secrets
oleobject loo_Json
oleobject loo_JsonSecret

li_Success = 0

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

loo_Secrets = create oleobject
li_rc = loo_Secrets.ConnectToNewObject("Chilkat.Secrets")
if li_rc < 0 then
    destroy loo_Secrets
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  The default value of AutoSplit is 1.
//  Note: AutoSplit only applies when the secret location is "local_manager"
//  and the app is running on the Windows OS.  All other secret locations, such as Apple Keychain,
//  AWS Secrets Manager, Azure Key Vault, etc. don't have limitations that are so small.
loo_Secrets.AutoSplit = 1

//  On Windows, this is the Windows Credentials Manager
//  On MacOS/iOS, it is the Apple Keychain
//  (This example is explaining how a secret too large for the Windows Credential Manager
//  is automatically compressed and split into parts if needed.)
loo_Secrets.Location = "local_manager"

//  Specify the name of the secret.
//  service and username are required.
//  appName and domain are optional.
//  Note: The values are arbitrary and can be anything you want.
loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.UpdateString("appName","AA_MyApp")
loo_Json.UpdateString("service","OAuth2")
loo_Json.UpdateString("domain","onedrive")
loo_Json.UpdateString("username","matt")

//  Get the secret to be stored.
loo_JsonSecret = create oleobject
li_rc = loo_JsonSecret.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_JsonSecret.LoadFile("qa_data/tokens/oneDrive.json")
if li_Success = 0 then
    Write-Debug loo_JsonSecret.LastErrorText
    destroy loo_Secrets
    destroy loo_Json
    destroy loo_JsonSecret
    return
end if

//  Note: The oneDrive.json file we used for testing is 4824 bytes in size,
//  which exceeds the maximum size (2560 bytes) allowed by the Windows Credentials Manager.

//  When the size is too large, Chilkat will first compress the content of the secret.
//  If the compressed size is small enough, then it is stored compressed without splitting.
//  Otherwise the compressed data is split

//  Your application does not need to know how the secret is stored in the Windows Credentials Manager.
//  When fetching the secret, Chilkat automatically decompresses and re-composes from parts.

//  Create or update the secret.
li_Success = loo_Secrets.UpdateSecretJson(loo_Json,loo_JsonSecret)
if li_Success = 0 then
    Write-Debug loo_Secrets.LastErrorText
    destroy loo_Secrets
    destroy loo_Json
    destroy loo_JsonSecret
    return
end if

//  This is the auto-split secret viewed in the Windows Credentials Manager:
//  

//  Note: If you delete the auto-split secret by calling Chilkat's DeleteSecret method,
//  the parts are automatically deleted.
//  Also, if you update the secret, the old parts are automatically deleted and new parts are created.

Write-Debug "Success"


destroy loo_Secrets
destroy loo_Json
destroy loo_JsonSecret