Unicode C++

Azure Key Vault Get the Latest Version of a Certificate

See more Azure Key Vault Examples

Demonstrates how to get the latest version of a certificate in Azure Key Vault.

Note: This example requires Chilkat v9.5.0.96 or later.

Unicode C++

#include <CkJsonObjectW.h>
#include <CkHttpW.h>
#include <CkStringBuilderW.h>
#include <CkCertW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    //  See Azure Key Vault Get Certificates for a more detailed explanation
    //  for how Chilkat is automatically getting the OAuth2 access token for your application.

    //  Provide information needed for Chilkat to automatically get an OAuth2 access token as needed.
    CkJsonObjectW json;
    json.UpdateString(L"client_id",L"APP_ID");
    json.UpdateString(L"client_secret",L"APP_PASSWORD");
    json.UpdateString(L"resource",L"https://vault.azure.net");
    json.UpdateString(L"token_endpoint",L"https://login.microsoftonline.com/TENANT_ID/oauth2/token");

    CkHttpW http;

    //  Instead of providing an actual access token, we give Chilkat the information that allows it to 
    //  automatically fetch the access token using the OAuth2 client credentials flow.
    http.put_AuthToken(json.emit());

    //  Replace VAULT_NAME with the name of your Azure Key Vault.
    http.SetUrlVar(L"certName",L"importCert01");

    CkStringBuilderW sbResponse;
    success = http.QuickGetSb(L"https://VAULT_NAME.vault.azure.net/certificates/{$certName}?api-version=7.4",sbResponse);
    if (success == false) {

        int statusCode = http.get_LastStatus();
        if (statusCode == 0) {
            //  We did not get a response from the server..
            wprintf(L"%s\n",http.lastErrorText());
        }
        else {
            //  We received a response, but it was an error.
            wprintf(L"Error response status code: %d\n",statusCode);
            wprintf(L"Error response:\n");
            wprintf(L"%s\n",sbResponse.getAsString());
        }

        return;
    }

    CkJsonObjectW jsonResp;
    jsonResp.LoadSb(sbResponse);
    jsonResp.put_EmitCompact(false);

    wprintf(L"%s\n",jsonResp.emit());

    //  A sample JSON response is show at the bottom.

    //  Let's do two things with the result.
    //  1) Load the DER of the cert into a Chilkat Cert object.
    //  2) Get the Key Vault version id of the certificate.

    CkCertW cert;
    success = cert.LoadFromBase64(jsonResp.stringOf(L"cer"));
    if (success == false) {
        wprintf(L"%s\n",cert.lastErrorText());
        wprintf(L"Failed to load certificate from Base64 DER.\n");
        return;
    }

    //  The Azure Key Vault's "version" of the certificate is the hex string at the end of the "id", "kid", and "sid" JSON members.
    //  For example:  "7140c8755ed14839b5d86a9f7e7f0497"
    CkStringBuilderW sbId;
    sbId.Append(jsonResp.stringOf(L"id"));
    const wchar_t *certVersion = sbId.getAfterFinal(L"/",false);
    wprintf(L"The key vault cert version is %s\n",certVersion);

    //  {
    //    "id": "https://kvchilkat.vault.azure.net/certificates/importCert01/7140c8755ed14839b5d86a9f7e7f0497",
    //    "kid": "https://kvchilkat.vault.azure.net/keys/importCert01/7140c8755ed14839b5d86a9f7e7f0497",
    //    "sid": "https://kvchilkat.vault.azure.net/secrets/importCert01/7140c8755ed14839b5d86a9f7e7f0497",
    //    "x5t": "I_e3776K5Q_6PN1HHvJoI2ZGQRQ",
    //    "cer": "MIIGXjCCB .... cjTsi7yIY=",
    //    "attributes": {
    //      "enabled": true,
    //      "nbf": 1633996800,
    //      "exp": 1728691199,
    //      "created": 1697411128,
    //      "updated": 1697411128,
    //      "recoveryLevel": "CustomizedRecoverable+Purgeable",
    //      "recoverableDays": 7
    //    },
    //    "policy": {
    //      "id": "https://kvchilkat.vault.azure.net/certificates/importCert01/policy",
    //      "key_props": {
    //        "exportable": true,
    //        "kty": "RSA",
    //        "key_size": 4096,
    //        "reuse_key": false
    //      },
    //      "secret_props": {
    //        "contentType": "application/x-pkcs12"
    //      },
    //      "x509_props": {
    //        "subject": "CN=\"Chilkat Software, Inc.\", O=\"Chilkat Software, Inc.\", S=Illinois, C=US",
    //        "ekus": [
    //          "1.3.6.1.5.5.7.3.3"
    //        ],
    //        "key_usage": [
    //          "digitalSignature"
    //        ],
    //        "validity_months": 37,
    //        "basic_constraints": {
    //          "ca": false
    //        }
    //      },
    //      "lifetime_actions": [
    //        {
    //          "trigger": {
    //            "lifetime_percentage": 80
    //          },
    //          "action": {
    //            "action_type": "EmailContacts"
    //          }
    //        }
    //      ],
    //      "issuer": {
    //        "name": "Unknown"
    //      },
    //      "attributes": {
    //        "enabled": true,
    //        "created": 1697411128,
    //        "updated": 1697411128
    //      }
    //    }
    //  }
    }