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(PHP ActiveX) HTTP - Verify Server is a Trusted Root CADemonstrates how to only allow connections to an HTTP server having a certificate with a root that is in our list of trusted CA root certificates.
<?php // 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. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Global') $chilkatGlob = new COM("Chilkat.Global"); $success = $chilkatGlob->UnlockBundle('Anything for 30-day trial.'); if ($success != 1) { print $chilkatGlob->LastErrorText . "\n"; exit; } // On my particular system, the root CA cert for this URL is not pre-installed. // Note: This may be different for you. // Also, this example was written on 29-May-2015. This URL was valid at the time, // but may not be valid at a future date. $url = 'https://animals.nationalgeographic.com/animals/invertebrates/starfish/'; // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Http') $http = new COM("Chilkat.Http"); // Require that the SSL/TLS server certificate is not expired, // and that the certificate signature is valid. // This does not ensure that it has a chain of authentication to // a trusted root. To ensure that, the TrustedRoots object (below) is required. $http->RequireSslCertVerify = 1; // Do the HTTPS page fetch (through the SSH tunnel) $html = $http->quickGetStr($url); if ($http->LastMethodSuccess != 1) { print $http->LastErrorText . "\n"; exit; } print 'The HTTP GET was successful.' . "\n"; // Now let's require that HTTP requests to SSL/TLS servers that don't have trusted CA roots // should fail. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.TrustedRoots') $trustedRoots = new COM("Chilkat.TrustedRoots"); // Indicate that we will trust any pre-installed certificates on this system. // (The meaning of pre-installed certificates depends on the operating system, and in // some environments there is no such thing as pre-installed certificates. See the reference // documentation for the TrustedRoots class.) $trustedRoots->TrustSystemCaRoots = 1; // 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(); // Given that our previous HTTP GET likely kept the connection open, // make sure that all HTTP connections are closed before re-trying. // Otherwise, we'll simply be re-using the pre-existing connection. $success = $http->CloseAllConnections(); // Now let's try fetching the URL again. It should fail this time because // there is a requirement that the SSL/TLS server certificate must have a trusted root, // and the trusted root for this URL is not installed on my system (but may be different for you..) $html = $http->quickGetStr($url); if ($http->LastMethodSuccess != 1) { print $http->LastErrorText . "\n"; print 'Good, the HTTP request failed as expected.' . "\n"; } else { print $http->LastErrorText . "\n"; print 'Hmmm... we did not fail as expected?' . "\n"; } ?> |
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