(Ruby) Load PEM and List Certificates

Demonstrates how to load a PEM containing certificates and accesses each individual certificate.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# Starting in v9.5.0.49, all Chilkat classes can be unlocked at once at the beginning of a program
# by calling UnlockBundle.  It requires a Bundle unlock code.
chilkatGlob = Chilkat::CkGlobal.new()
success = chilkatGlob.UnlockBundle("Anything for 30-day trial.")
if (success != true)
    print chilkatGlob.lastErrorText() + "\n";
    exit
end

pem = Chilkat::CkPem.new()

# Load the .p7b from a file.
success = pem.LoadPemFile("/Users/chilkat/testData/p7b/cacert_mozilla.pem")
if (success != true)
    print pem.lastErrorText() + "\n";
    exit
end

numCerts = pem.get_NumCerts()
if (numCerts == 0)
    print (("Error: Expected the PEM to contain certificates.")) + "\n";
    exit
end

# Access each certificate and show the Subject CN (Common Name)
for i in 1 .. numCerts
    # cert is a CkCert
    cert = pem.GetCert(i - 1)
    print i.to_s() + ": " + cert.subjectCN() + "\n";

end