(Visual FoxPro) Verify SSL Server Certificate

Demonstrates how to connect to an SSL server and verify its SSL certificate.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loSocket
LOCAL lnSsl
LOCAL lnMaxWaitMillisec
LOCAL lcSslServerHost
LOCAL lnSslServerPort
LOCAL loCert
LOCAL lnBExpired
LOCAL lnBRevoked
LOCAL lnBSignatureVerified
LOCAL lnBTrustedRoot

lnSuccess = 0

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

loSocket = CreateObject('Chilkat.Socket')

lnSsl = 1
lnMaxWaitMillisec = 20000

* The SSL server hostname may be an IP address, a domain name,
* or "localhost". 

lcSslServerHost = "www.paypal.com"
lnSslServerPort = 443

* Connect to the SSL server:
lnSuccess = loSocket.Connect(lcSslServerHost,lnSslServerPort,lnSsl,lnMaxWaitMillisec)
IF (lnSuccess = 0) THEN
    ? loSocket.LastErrorText
    RELEASE loSocket
    CANCEL
ENDIF

loCert = CreateObject('Chilkat.Cert')

lnSuccess = loSocket.GetServerCert(loCert)
IF (lnSuccess <> 0) THEN

    ? "Server Certificate:"
    ? "Distinguished Name: " + loCert.SubjectDN
    ? "Common Name: " + loCert.SubjectCN
    ? "Issuer Distinguished Name: " + loCert.IssuerDN
    ? "Issuer Common Name: " + loCert.IssuerCN

    lnBExpired = loCert.Expired
    lnBRevoked = loCert.Revoked
    lnBSignatureVerified = loCert.SignatureVerified
    lnBTrustedRoot = loCert.TrustedRoot

    ? "Expired: " + STR(lnBExpired)
    ? "Revoked: " + STR(lnBRevoked)
    ? "Signature Verified: " + STR(lnBSignatureVerified)
    ? "Trusted Root: " + STR(lnBTrustedRoot)

ENDIF

* Close the connection with the server
* Wait a max of 20 seconds (20000 millsec)
lnSuccess = loSocket.Close(20000)

RELEASE loSocket
RELEASE loCert