C++

Get a Remote FTP File's Last-Modified Time by Name

Demonstrates the Chilkat Ftp2.GetLastModifiedTimeByNameStr method, which returns the last-modified time of a named item in the current remote directory as an RFC 822 date-time string. The only argument is the filename.

Background: This queries one item's modification time directly (typically via MDTM) rather than pulling and scanning a whole listing — efficient when you already know the filename and just need its timestamp, for example to decide whether a local copy is stale. The RFC 822 string includes a timezone offset, so the moment is unambiguous.

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C++

#include <CkFtp2.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the Ftp2.GetLastModifiedTimeByNameStr method, which returns the last-modified time
    //  of a named item in the current remote directory as an RFC 822 date-time string.  The only
    //  argument is the filename.

    CkFtp2 ftp;

    ftp.put_Hostname("ftp.example.com");
    ftp.put_Username("myFtpLogin");

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    ftp.put_Password("myPassword");

    success = ftp.Connect();
    if (success == false) {
        std::cout << ftp.lastErrorText() << "\r\n";
        return;
    }

    success = ftp.ChangeRemoteDir("public_html");
    if (success == false) {
        std::cout << ftp.lastErrorText() << "\r\n";
        return;
    }

    const char *lastModified = ftp.getLastModifiedTimeByNameStr("report.pdf");
    if (ftp.get_LastMethodSuccess() == false) {
        std::cout << ftp.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Last modified: " << lastModified << "\r\n";

    success = ftp.Disconnect();
    if (success == false) {
        std::cout << ftp.lastErrorText() << "\r\n";
        return;
    }
    }