(PHP ActiveX) Use a Custom Set of Trusted Root Certificates

Demonstrates how to build a set of trusted root certificates to be used globally by all Chilkat classes.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

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

$trustedRoots = new COM("Chilkat_9_5_0.TrustedRoots");

//  Indicate that we will NOT trust any pre-installed certificates on the system.
$trustedRoots->TrustSystemCaRoots = 0;

// Thawte is a certificate authority that provides a .zip download of their
// root CA certificates:  https://www.thawte.com/roots/index.html
// The direct download link is: https://www.verisign.com/support/thawte-roots.zip
// Note: The above URLs are valid at the time of writing this example (29-May-2015).

// Assuming the .zip has already been downloaded, open it and load each .pem file into
// our trusted roots object.
$zip = new COM("Chilkat_9_5_0.Zip");

// Open a .zip containing PEM files, among other things..
$success = $zip->OpenZip('qa_data/certs/thawte-roots.zip');
if ($success != 1) {
    print $zip->LastErrorText . "\n";
    exit;
}

// entry is a Chilkat_9_5_0.ZipEntry
$entry = $zip->FirstMatchingEntry('*.pem');
if ($zip->LastMethodSuccess != 1) {
    print 'No entries matched.' . "\n";
    exit;
}

$cert = new COM("Chilkat_9_5_0.Cert");

$bHasMoreEntries = 1;
while (($bHasMoreEntries == 1)) {

    print 'Entry: ' . $entry->FileName . "\n";

    // Get the PEM of the CA cert:
    $pemStr = $entry->unzipToString(0,'utf-8');

    // Load it into a certificate object:
    $success = $cert->LoadPem($pemStr);
    if ($success != 1) {
        print $cert->LastErrorText . "\n";
    }

    // Add it to the trusted roots.
    $trustedRoots->AddCert($cert);

    // The NextMatchingEntry method was added in v9.5.0.50
    // nextEntry is a Chilkat_9_5_0.ZipEntry
    $nextEntry = $entry->NextMatchingEntry('*.pem');
    $bHasMoreEntries = $entry->LastMethodSuccess;

    // entry is a Chilkat_9_5_0.ZipEntry
    $entry = $nextEntry;
}

//  Activate the trusted roots globally for all Chilkat objects.
//  This call really shouldn't fail, so we're not checking the return value.
$success = $trustedRoots->Activate();

?>