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(Unicode C) 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.
#include <C_CkGlobalW.h> #include <C_CkHttpW.h> #include <C_CkTrustedRootsW.h> void ChilkatSample(void) { HCkGlobalW chilkatGlob; BOOL success; const wchar_t *url; HCkHttpW http; const wchar_t *html; HCkTrustedRootsW trustedRoots; // 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 = CkGlobalW_Create(); success = CkGlobalW_UnlockBundle(chilkatGlob,L"Anything for 30-day trial."); if (success != TRUE) { wprintf(L"%s\n",CkGlobalW_lastErrorText(chilkatGlob)); CkGlobalW_Dispose(chilkatGlob); return; } // 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 = L"https://animals.nationalgeographic.com/animals/invertebrates/starfish/"; http = CkHttpW_Create(); // 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. CkHttpW_putRequireSslCertVerify(http,TRUE); // Do the HTTPS page fetch (through the SSH tunnel) html = CkHttpW_quickGetStr(http,url); if (CkHttpW_getLastMethodSuccess(http) != TRUE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkGlobalW_Dispose(chilkatGlob); CkHttpW_Dispose(http); return; } wprintf(L"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. trustedRoots = CkTrustedRootsW_Create(); // 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.) CkTrustedRootsW_putTrustSystemCaRoots(trustedRoots,TRUE); // Activate the trusted roots globally for all Chilkat objects. // This call really shouldn't fail, so we're not checking the return value. success = CkTrustedRootsW_Activate(trustedRoots); // 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 = CkHttpW_CloseAllConnections(http); // 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 = CkHttpW_quickGetStr(http,url); if (CkHttpW_getLastMethodSuccess(http) != TRUE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); wprintf(L"Good, the HTTP request failed as expected.\n"); } else { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); wprintf(L"Hmmm... we did not fail as expected?\n"); } CkGlobalW_Dispose(chilkatGlob); CkHttpW_Dispose(http); CkTrustedRootsW_Dispose(trustedRoots); } |
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