(Classic ASP) 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

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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' 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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set manifest = Server.CreateObject("Chilkat.JsonObject")
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2")
set crypt = Server.CreateObject("Chilkat.Crypt2")

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Zip")
set zip = Server.CreateObject("Chilkat.Zip")
success = zip.NewZip("notUsedAndNeverCreated.zip")

crypt.HashAlgorithm = "sha1"
' Return hashes as lowercase hex.
crypt.EncodingMode = "hexlower"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.BinData")
set pngData = Server.CreateObject("Chilkat.BinData")
' Assume we load the pngData with bytes for "icon.png" from somewhere, such as a byte array in memory.
' entry is a Chilkat.ZipEntry
Set entry = zip.AppendBd("icon.png",pngData)

digestStr = crypt.HashBdENC(pngData)
success = manifest.UpdateString("""icon.png""",digestStr)

success = pngData.Clear()
' Assume we load the pngData with bytes for "icon@2x.png" from somewhere...
' entry is a Chilkat.ZipEntry
Set entry = zip.AppendBd("icon@2x.png",pngData)

digestStr = crypt.HashBdENC(pngData)
success = manifest.UpdateString("""icon@2x.png""",digestStr)

success = pngData.Clear()
' Assume we load the pngData with bytes for "logo.png" from somewhere...
' entry is a Chilkat.ZipEntry
Set entry = zip.AppendBd("logo.png",pngData)

digestStr = crypt.HashBdENC(pngData)
success = manifest.UpdateString("""logo.png""",digestStr)

success = pngData.Clear()
' Assume we load the pngData with bytes for "logo@2x.png" from somewhere...
' entry is a Chilkat.ZipEntry
Set entry = zip.AppendBd("logo@2x.png",pngData)

digestStr = crypt.HashBdENC(pngData)
success = manifest.UpdateString("""logo@2x.png""",digestStr)

passJson = "{ .... }"'  Contains the contents of pass.json
' entry is a Chilkat.ZipEntry
Set entry = zip.AppendString("pass.json",passJson)

digestStr = crypt.HashStringENC(passJson)
success = manifest.UpdateString("""pass.json""",digestStr)

' entry is a Chilkat.ZipEntry
Set entry = zip.AppendString("manifest.json",manifest.Emit())

' Make sure we have the Apple WWDR intermediate certificate available for 
' the cert chain in the signature.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.XmlCertVault")
set certVault = Server.CreateObject("Chilkat.XmlCertVault")
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set appleWwdrCert = Server.CreateObject("Chilkat.Cert")
success = appleWwdrCert.LoadByCommonName("Apple Worldwide Developer Relations Certification Authority")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( "The Apple WWDR intermediate certificate is not installed.") & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "It is available at https://developer.apple.com/certificationauthority/AppleWWDRCA.cer") & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "You may alternatively load the .cer like this...") & "</pre>"
    success = appleWwdrCert.LoadFromFile("qa_data/certs/AppleWWDRCA.cer")
    If (success <> 1) Then
        Response.Write "<pre>" & Server.HTMLEncode( appleWwdrCert.LastErrorText) & "</pre>"
        Response.End
    End If

End If

success = certVault.AddCert(appleWwdrCert)
success = crypt.UseCertVault(certVault)

' Use a digital certificate and private key from a PFX
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.BinData")
set bdPfx = Server.CreateObject("Chilkat.BinData")
' Assume we loaded a PFX into bdPfx....
pfxPassword = "test123"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set cert = Server.CreateObject("Chilkat.Cert")
success = cert.LoadPfxBd(bdPfx,pfxPassword)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"
    Response.End
End If

' Provide the signing cert (with associated private key).
success = crypt.SetSigningCert(cert)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( crypt.LastErrorText) & "</pre>"
    Response.End
End If

' 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.)
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set jsonSignedAttrs = Server.CreateObject("Chilkat.JsonObject")
success = jsonSignedAttrs.UpdateInt("contentType",1)
success = jsonSignedAttrs.UpdateInt("signingTime",1)
crypt.SigningAttributes = jsonSignedAttrs.Emit()

' Sign the manifest JSON to produce a signature
crypt.EncodingMode = "base64"
sig = crypt.SignStringENC(manifest.Emit())
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.BinData")
set bdSig = Server.CreateObject("Chilkat.BinData")
success = bdSig.AppendEncoded(sig,"base64")
' entry is a Chilkat.ZipEntry
Set entry = zip.AppendBd("signature",bdSig)

' ---------------------------------------------------------------------------------------------
' 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
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.BinData")
set bdZip = Server.CreateObject("Chilkat.BinData")
success = zip.WriteBd(bdZip)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( zip.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>"

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