(MFC) Persist Cookies to XML Files and Auto Re-Send

Demonstrates how to persist incoming cookies to XML files and automatically re-send in subsesquent HTTP requests.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkHttp.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkHttp http;

    // To save cookies to XML files (per domain) in a specific
    // directory, set the CookieDir property (the directory must
    // already exist and be writeable by the caller).  Also,
    // set the SaveCookies property:
    http.put_CookieDir("/cookieDir");
    http.put_SaveCookies(true);

    // Any methods that do a GET, POST, etc. will save cookies
    // to the CookieDir:
    const char *html = 0;
    html = http.quickGetStr("https://www.paypal.com/");

    // After running this code, a "paypal_com.xml" file should appear
    // in /cookieDir.

    // It's content will look something like this:

    // <cookies>
    //     <cookie key=".paypal.com,/" v="0" secure="yes">
    //         <navcmd>_home-general</navcmd>
    //         <HttpOnly />
    //         <cwrClyrK4LoCV1fydGbAxiNL6iG>9cz...</cwrClyrK4LoCV1fydGbAxiNL6iG>
    //     </cookie>
    // </cookies>

    // To cause cached cookies to be sent with 
    // subsequent HTTP requests, set the SendCookies
    // property = true.
    http.put_SendCookies(true);

    // If another HTTP request is sent, the cookies should
    // be added:
    html = http.quickGetStr("https://www.paypal.com/");

    // Check the LastHeader property to see the MIME header
    // of the last HTTP request sent.
    // The "Cookie" header field should be present.
    strOut.append("--- LastHeader ---");
    strOut.append("\r\n");
    strOut.append(http.lastHeader());
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }