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(Chilkat2-Python) Sign Manifest File to Generate a Passbook .pkpass file

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

Chilkat2 Python Downloads

Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

# Note: Requires Chilkat v9.5.0.75 or greater.

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

# ---------------------------------------------------------------------------------------------
# Note: Chilkat also has the capability to do everything in-memory (no files would be involved).  
# See this example:  Sign Manifest File to Generate a Passbook .pkpass in Memory
# ---------------------------------------------------------------------------------------------

# First create the manifest.json

manifest = chilkat2.JsonObject()
crypt = chilkat2.Crypt2()

zip = chilkat2.Zip()
zip.NewZip("qa_data/p7s/pass-wallet/example.pkpass")
# Set the AppendFromDir property to prevent that relative paths from being stored in the .pkpass archive.
zip.AppendFromDir = "qa_data/p7s/pass-wallet/"

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

filePath = "qa_data/p7s/pass-wallet/icon.png"
fileHash = crypt.HashFileENC(filePath)
zip.AppendOneFileOrDir("icon.png",False)
manifest.UpdateString("\"icon.png\"",fileHash)

filePath = "qa_data/p7s/pass-wallet/icon@2x.png"
fileHash = crypt.HashFileENC(filePath)
zip.AppendOneFileOrDir("icon@2x.png",False)
manifest.UpdateString("\"icon@2x.png\"",fileHash)

filePath = "qa_data/p7s/pass-wallet/logo.png"
fileHash = crypt.HashFileENC(filePath)
zip.AppendOneFileOrDir("logo.png",False)
manifest.UpdateString("\"logo.png\"",fileHash)

filePath = "qa_data/p7s/pass-wallet/logo@2x.png"
fileHash = crypt.HashFileENC(filePath)
zip.AppendOneFileOrDir("logo@2x.png",False)
manifest.UpdateString("\"logo@2x.png\"",fileHash)

filePath = "qa_data/p7s/pass-wallet/pass.json"
fileHash = crypt.HashFileENC(filePath)
zip.AppendOneFileOrDir("pass.json",False)
manifest.UpdateString("\"pass.json\"",fileHash)

sbJson = chilkat2.StringBuilder()
manifest.EmitSb(sbJson)
manifestPath = "qa_data/p7s/pass-wallet/manifest.json"
sbJson.WriteFile(manifestPath,"utf-8",False)
zip.AppendOneFileOrDir("manifest.json",False)

# Make sure we have the Apple WWDR intermediate certificate available for 
# the cert chain in the signature.
certVault = chilkat2.XmlCertVault()
appleWwdrCert = chilkat2.Cert()
success = appleWwdrCert.LoadByCommonName("Apple Worldwide Developer Relations Certification Authority")
if (success != True):
    print("The Apple WWDR intermediate certificate is not installed.")
    print("It is available at https://developer.apple.com/certificationauthority/AppleWWDRCA.cer")
    print("You may alternatively load the .cer like this...")
    success = appleWwdrCert.LoadFromFile("qa_data/certs/AppleWWDRCA.cer")
    if (success != True):
        print(appleWwdrCert.LastErrorText)
        sys.exit()

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

# Use a digital certificate and private key from a PFX file (.pfx or .p12).
pfxPath = "qa_data/pfx/cert_test123.pfx"
pfxPassword = "test123"

cert = chilkat2.Cert()
success = cert.LoadPfxFile(pfxPath,pfxPassword)
if (success != True):
    print(cert.LastErrorText)
    sys.exit()

# Provide the signing cert (with associated private key).
success = crypt.SetSigningCert(cert)
if (success != True):
    print(crypt.LastErrorText)
    sys.exit()

# 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.)
jsonSignedAttrs = chilkat2.JsonObject()
jsonSignedAttrs.UpdateInt("contentType",1)
jsonSignedAttrs.UpdateInt("signingTime",1)
crypt.SigningAttributes = jsonSignedAttrs.Emit()

# Sign the manifest JSON file to produce a file named "signature".
sigPath = "qa_data/p7s/pass-wallet/signature"

# Create the "signature" file.
success = crypt.CreateP7S(manifestPath,sigPath)
if (success == False):
    print(crypt.LastErrorText)
    sys.exit()

zip.AppendOneFileOrDir("signature",False)

# ---------------------------------------------------------------------------------------------
# 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).
success = zip.WriteZipAndClose()
if (success != True):
    print(zip.LastErrorText)
    sys.exit()

print("Success.")

 

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