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(Unicode C) 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.

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

Note: This example requires Chilkat v9.5.0.75.

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#include <C_CkJsonObjectW.h>
#include <C_CkCrypt2W.h>
#include <C_CkZipW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkXmlCertVaultW.h>
#include <C_CkCertW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkJsonObjectW manifest;
    HCkCrypt2W crypt;
    HCkZipW zip;
    const wchar_t *fileHash;
    const wchar_t *filePath;
    HCkStringBuilderW sbJson;
    const wchar_t *manifestPath;
    HCkXmlCertVaultW certVault;
    HCkCertW appleWwdrCert;
    const wchar_t *pfxPath;
    const wchar_t *pfxPassword;
    HCkCertW cert;
    HCkJsonObjectW jsonSignedAttrs;
    const wchar_t *sigPath;

    //  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).
    //  If this is of interest, please send email to support@chilkatsoft.com
    //  ---------------------------------------------------------------------------------------------

    //  First create the manifest.json

    manifest = CkJsonObjectW_Create();
    crypt = CkCrypt2W_Create();

    zip = CkZipW_Create();
    CkZipW_NewZip(zip,L"qa_data/p7s/pass-wallet/example.pkpass");
    //  Set the AppendFromDir property to prevent that relative paths from being stored in the .pkpass archive.
    CkZipW_putAppendFromDir(zip,L"qa_data/p7s/pass-wallet/");

    CkCrypt2W_putHashAlgorithm(crypt,L"sha1");
    //  Return hashes as lowercase hex.
    CkCrypt2W_putEncodingMode(crypt,L"hexlower");

    filePath = L"qa_data/p7s/pass-wallet/icon.png";
    fileHash = CkCrypt2W_hashFileENC(crypt,filePath);
    CkZipW_AppendOneFileOrDir(zip,L"icon.png",FALSE);
    CkJsonObjectW_UpdateString(manifest,L"\"icon.png\"",fileHash);

    filePath = L"qa_data/p7s/pass-wallet/icon@2x.png";
    fileHash = CkCrypt2W_hashFileENC(crypt,filePath);
    CkZipW_AppendOneFileOrDir(zip,L"icon@2x.png",FALSE);
    CkJsonObjectW_UpdateString(manifest,L"\"icon@2x.png\"",fileHash);

    filePath = L"qa_data/p7s/pass-wallet/logo.png";
    fileHash = CkCrypt2W_hashFileENC(crypt,filePath);
    CkZipW_AppendOneFileOrDir(zip,L"logo.png",FALSE);
    CkJsonObjectW_UpdateString(manifest,L"\"logo.png\"",fileHash);

    filePath = L"qa_data/p7s/pass-wallet/logo@2x.png";
    fileHash = CkCrypt2W_hashFileENC(crypt,filePath);
    CkZipW_AppendOneFileOrDir(zip,L"logo@2x.png",FALSE);
    CkJsonObjectW_UpdateString(manifest,L"\"logo@2x.png\"",fileHash);

    filePath = L"qa_data/p7s/pass-wallet/pass.json";
    fileHash = CkCrypt2W_hashFileENC(crypt,filePath);
    CkZipW_AppendOneFileOrDir(zip,L"pass.json",FALSE);
    CkJsonObjectW_UpdateString(manifest,L"\"pass.json\"",fileHash);

    sbJson = CkStringBuilderW_Create();
    CkJsonObjectW_EmitSb(manifest,sbJson);
    manifestPath = L"qa_data/p7s/pass-wallet/manifest.json";
    CkStringBuilderW_WriteFile(sbJson,manifestPath,L"utf-8",FALSE);
    CkZipW_AppendOneFileOrDir(zip,L"manifest.json",FALSE);

    //  Make sure we have the Apple WWDR intermediate certificate available for
    //  the cert chain in the signature.
    certVault = CkXmlCertVaultW_Create();
    appleWwdrCert = CkCertW_Create();
    success = CkCertW_LoadByCommonName(appleWwdrCert,L"Apple Worldwide Developer Relations Certification Authority");
    if (success != TRUE) {
        wprintf(L"The Apple WWDR intermediate certificate is not installed.\n");
        wprintf(L"It is available at https://developer.apple.com/certificationauthority/AppleWWDRCA.cer\n");
        wprintf(L"You may alternatively load the .cer like this...\n");
        success = CkCertW_LoadFromFile(appleWwdrCert,L"qa_data/certs/AppleWWDRCA.cer");
        if (success != TRUE) {
            wprintf(L"%s\n",CkCertW_lastErrorText(appleWwdrCert));
            CkJsonObjectW_Dispose(manifest);
            CkCrypt2W_Dispose(crypt);
            CkZipW_Dispose(zip);
            CkStringBuilderW_Dispose(sbJson);
            CkXmlCertVaultW_Dispose(certVault);
            CkCertW_Dispose(appleWwdrCert);
            return;
        }

    }

    CkXmlCertVaultW_AddCert(certVault,appleWwdrCert);
    CkCrypt2W_UseCertVault(crypt,certVault);

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

    cert = CkCertW_Create();
    success = CkCertW_LoadPfxFile(cert,pfxPath,pfxPassword);
    if (success != TRUE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(cert));
        CkJsonObjectW_Dispose(manifest);
        CkCrypt2W_Dispose(crypt);
        CkZipW_Dispose(zip);
        CkStringBuilderW_Dispose(sbJson);
        CkXmlCertVaultW_Dispose(certVault);
        CkCertW_Dispose(appleWwdrCert);
        CkCertW_Dispose(cert);
        return;
    }

    //  Provide the signing cert (with associated private key).
    success = CkCrypt2W_SetSigningCert(crypt,cert);
    if (success != TRUE) {
        wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt));
        CkJsonObjectW_Dispose(manifest);
        CkCrypt2W_Dispose(crypt);
        CkZipW_Dispose(zip);
        CkStringBuilderW_Dispose(sbJson);
        CkXmlCertVaultW_Dispose(certVault);
        CkCertW_Dispose(appleWwdrCert);
        CkCertW_Dispose(cert);
        return;
    }

    //  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 = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateInt(jsonSignedAttrs,L"contentType",1);
    CkJsonObjectW_UpdateInt(jsonSignedAttrs,L"signingTime",1);
    CkCrypt2W_putSigningAttributes(crypt,CkJsonObjectW_emit(jsonSignedAttrs));

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

    //  Create the "signature" file.
    success = CkCrypt2W_CreateP7S(crypt,manifestPath,sigPath);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt));
        CkJsonObjectW_Dispose(manifest);
        CkCrypt2W_Dispose(crypt);
        CkZipW_Dispose(zip);
        CkStringBuilderW_Dispose(sbJson);
        CkXmlCertVaultW_Dispose(certVault);
        CkCertW_Dispose(appleWwdrCert);
        CkCertW_Dispose(cert);
        CkJsonObjectW_Dispose(jsonSignedAttrs);
        return;
    }

    CkZipW_AppendOneFileOrDir(zip,L"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 = CkZipW_WriteZipAndClose(zip);
    if (success != TRUE) {
        wprintf(L"%s\n",CkZipW_lastErrorText(zip));
        CkJsonObjectW_Dispose(manifest);
        CkCrypt2W_Dispose(crypt);
        CkZipW_Dispose(zip);
        CkStringBuilderW_Dispose(sbJson);
        CkXmlCertVaultW_Dispose(certVault);
        CkCertW_Dispose(appleWwdrCert);
        CkCertW_Dispose(cert);
        CkJsonObjectW_Dispose(jsonSignedAttrs);
        return;
    }

    wprintf(L"Success.\n");


    CkJsonObjectW_Dispose(manifest);
    CkCrypt2W_Dispose(crypt);
    CkZipW_Dispose(zip);
    CkStringBuilderW_Dispose(sbJson);
    CkXmlCertVaultW_Dispose(certVault);
    CkCertW_Dispose(appleWwdrCert);
    CkCertW_Dispose(cert);
    CkJsonObjectW_Dispose(jsonSignedAttrs);

    }

 

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