AutoIt

Sign Manifest File to Generate a Passbook .pkpass in Memory

Demonstrates how to create a Passbook .pkpass archive by creating a signature of a manifest file and then zipping to a .pkpass archive in memory AutoIt

Local $bSuccess = False

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

; ---------------------------------------------------------------------------------------------
; This example is the same as Sign Manifest File to Generate a Passbook .pkpass file
; except everything happens in memory (no input files, no output files)
; ---------------------------------------------------------------------------------------------

; First create the manifest.json

$oManifest = ObjCreate("Chilkat.JsonObject")
$oCrypt = ObjCreate("Chilkat.Crypt2")

$oZip = ObjCreate("Chilkat.Zip")
$oZip.NewZip("notUsedAndNeverCreated.zip")

$oCrypt.HashAlgorithm = "sha1"
; Return hashes as lowercase hex.
$oCrypt.EncodingMode = "hexlower"

Local $sDigestStr

$oPngData = ObjCreate("Chilkat.BinData")
; Assume we load the pngData with bytes for "icon.png" from somewhere, such as a byte array in memory.
$oZip.AddBd("icon.png",$oPngData)
$sDigestStr = $oCrypt.HashBdENC($oPngData)
$oManifest.UpdateString("""icon.png""",$sDigestStr)

$oPngData.Clear()
; Assume we load the pngData with bytes for "icon@2x.png" from somewhere...
$oZip.AddBd("icon@2x.png",$oPngData)
$sDigestStr = $oCrypt.HashBdENC($oPngData)
$oManifest.UpdateString("""icon@2x.png""",$sDigestStr)

$oPngData.Clear()
; Assume we load the pngData with bytes for "logo.png" from somewhere...
$oZip.AddBd("logo.png",$oPngData)
$sDigestStr = $oCrypt.HashBdENC($oPngData)
$oManifest.UpdateString("""logo.png""",$sDigestStr)

$oPngData.Clear()
; Assume we load the pngData with bytes for "logo@2x.png" from somewhere...
$oZip.AddBd("logo@2x.png",$oPngData)
$sDigestStr = $oCrypt.HashBdENC($oPngData)
$oManifest.UpdateString("""logo@2x.png""",$sDigestStr)

Local $sPassJson = "{ .... }";  Contains the contents of pass.json
$oZip.AddString("pass.json",$sPassJson,"utf-8")
$sDigestStr = $oCrypt.HashStringENC($sPassJson)
$oManifest.UpdateString("""pass.json""",$sDigestStr)

$oZip.AddString("manifest.json",$oManifest.Emit(),"utf-8")

; Make sure we have the Apple WWDR intermediate certificate available for 
; the cert chain in the signature.
$oCertVault = ObjCreate("Chilkat.XmlCertVault")
$oAppleWwdrCert = ObjCreate("Chilkat.Cert")
$bSuccess = $oAppleWwdrCert.LoadByCommonName("Apple Worldwide Developer Relations Certification Authority")
If ($bSuccess <> True) Then
    ConsoleWrite("The Apple WWDR intermediate certificate is not installed." & @CRLF)
    ConsoleWrite("It is available at https://developer.apple.com/certificationauthority/AppleWWDRCA.cer" & @CRLF)
    ConsoleWrite("You may alternatively load the .cer like this..." & @CRLF)
    $bSuccess = $oAppleWwdrCert.LoadFromFile("qa_data/certs/AppleWWDRCA.cer")
    If ($bSuccess = False) Then
        ConsoleWrite($oAppleWwdrCert.LastErrorText & @CRLF)
        Exit
    EndIf

EndIf

$oCertVault.AddCert($oAppleWwdrCert)
$oCrypt.UseCertVault($oCertVault)

; Use a digital certificate and private key from a PFX
$oBdPfx = ObjCreate("Chilkat.BinData")
; Assume we loaded a PFX into bdPfx....
Local $sPfxPassword = "test123"

$oCert = ObjCreate("Chilkat.Cert")
$bSuccess = $oCert.LoadPfxBd($oBdPfx,$sPfxPassword)
If ($bSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

; Provide the signing cert (with associated private key).
$bSuccess = $oCrypt.SetSigningCert($oCert)
If ($bSuccess = False) Then
    ConsoleWrite($oCrypt.LastErrorText & @CRLF)
    Exit
EndIf

; Specify the signed attributes to be included.
; (These attributes appear to not be necessary, but we're including
; them just in case they become necessary in the future.)
$oJsonSignedAttrs = ObjCreate("Chilkat.JsonObject")
$oJsonSignedAttrs.UpdateInt("contentType",1)
$oJsonSignedAttrs.UpdateInt("signingTime",1)
$oCrypt.SigningAttributes = $oJsonSignedAttrs.Emit()

; Sign the manifest JSON to produce a signature
$oCrypt.EncodingMode = "base64"
Local $sig = $oCrypt.SignStringENC($oManifest.Emit())
$oBdSig = ObjCreate("Chilkat.BinData")
$oBdSig.AppendEncoded($sig,"base64")
$oZip.AddBd("signature",$oBdSig)

; ---------------------------------------------------------------------------------------------
; Note: Chilkat also has the capability to do everything in-memory (no files would be involved).  
; If this is of interest, please send email to support@chilkatsoft.com
; ---------------------------------------------------------------------------------------------

; Create the .pkipass archive (which is a .zip archive containing the required files).
; the .zip is written to bdZip
$oBdZip = ObjCreate("Chilkat.BinData")
$bSuccess = $oZip.WriteBd($oBdZip)
If ($bSuccess = False) Then
    ConsoleWrite($oZip.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Success." & @CRLF)