Tracing HTTP Redirects

Example to trace through HTTP redirects.

Download Chilkat C/C++ Libraries for VC++ 9.0 / Win32

Download Chilkat C/C++ Libraries for VC++ 8.0 / Win32

Download Chilkat C/C++ 64-bit Libraries for VC++ 8.0 / x64

Download Chilkat Visual Studio 2005 C/C++ Libs for Windows Mobile, Pocket PC, SmartPhone, WinCE

Download Chilkat C/C++ Libraries for VC++ 7.0 / Win32

Download Chilkat C/C++ Libraries for VC++ 6.0 / Win32

Download Chilkat C/C++ Libraries for VC++ 6.0, Win 95/98/NT4 Compatible

#include <C_CkHttp.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    BOOL success;
    const char * url;
    const char * html;
    long status;
    long loopCount;

    http = CkHttp_Create();

    //  Any string unlocks the component for the 1st 30-days.
    success = CkHttp_UnlockComponent(http,"Anything for 30-day trial");
    if (success != TRUE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        return;
    }

    url = "http://www.planyourweddingonline.co.za/";

    //  The FollowRedirects property controls whether redirects
    //  are automatically followed.  The default behavior is to
    //  automatically follow redirects.

    //  Explicitly set FollowRedirects so that redirects are NOT automatically taken:
    CkHttp_putFollowRedirects(http,FALSE);

    //  Send the HTTP GET and return the content in a string.
    html = CkHttp_quickGetStr(http,url);
    if (html == 0 ) {
        printf("%s\n",CkHttp_lastErrorText(http));
    }

    status = CkHttp_getLastStatus(http);
    printf("HTTP Response Status: %d\n",status);

    //  The FinalRedirectUrl property will contain the redirect URL
    //  If FollowRedirects was equal to TRUE, then all of the
    //  intermediate redirects (if any) would be followed until
    //  there were no more redirects.  However, because
    //  FollowRedirects is not TRUE, FinalRedirectUrl contains
    //  the next redirect URL.
    printf("Redirect URL: %s\n",CkHttp_finalRedirectUrl(http));

    loopCount = 0;

    while ((status == 302)) {
        url = CkHttp_finalRedirectUrl(http);
        html = CkHttp_quickGetStr(http,url);
        if (html == 0 ) {
            printf("%s\n",CkHttp_lastErrorText(http));
            break;
        }

        status = CkHttp_getLastStatus(http);
        printf("Redirect URL: %s\n",CkHttp_finalRedirectUrl(http));

        //  You may wish to check that if FinalRedirectUrl
        //  equals the URL just retrieved.  If so, then break out of the
        //  loop.  (This check is omitted in this example.)

        //  Instead, this example will prevent infinite loops by
        //  keeping a loopCount and only allows following a max
        //  of 10 redirects:
        loopCount = loopCount + 1;
        if (loopCount > 10) {
            break;
        }

    }


    CkHttp_Dispose(http);

    }