Zig Requires Chilkat v10.1.2+

Using WS_FTP Self-signed Certificate file (.crt) and Private Key File. (.key)

See more FTP Examples

Demonstrates how to use a self-signed certificate created by WS_FTP with Chilkat FTP2.

Note: It is usually not necessary for the FTP client to use a client-side certificate. Most FTP servers using SSL and TLS connections (explicit or implicit) do not require client-side certs. In addition, some high-security FTP servers require "real" certificates -- meaning certificates issued by a real certificate authority with a chain of authentication that leads to a trusted root certificate. The certificates created by WS_FTP are self-signed and untrusted.

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    var success: bool = false;

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

    // Important:  Before running this program, convert your
    // .crt and .key files to a .p12 using OpenSSL:
    // The command is this:
    // openssl pkcs12 -export -in test.crt -inkey test.key -out test.p12
    //

    const ftp = try chilkat.Ftp2.init();
    defer ftp.deinit();

    ftp.setHostname("ftp.example.com");
    ftp.setPort(21);
    ftp.setUsername("testLogin");
    ftp.setPassword("testPassword");

    // This example will use explict TLS/SSL.
    // Establish an explicit secure channel after connection
    // on the standard FTP port 21.
    ftp.setAuthTls(true);

    // The Ssl property is for establishing an implicit SSL connection
    // on port 990.  Because this example uses explicit SSL, it
    // should remain false.
    ftp.setSsl(false);

    // Create an instance of a certificate store object, load a .p12 file,
    // locate the certificate we need, and use it for signing.
    // (a P12/PFX file may contain more than one certificate.)
    const cert_store = try chilkat.CertStore.init();
    defer cert_store.deinit();
    // The 1st argument is the filename, the 2nd arg is the
    // .p12 file's password.  (OpenSSL will prompty you to set a password
    // when converting the .crt and .key into a .p12).
    success = if (cert_store.loadPfxFile("test.p12", "secret")) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try cert_store.getLastErrorText(alloc)});
        return;
    }

    const json_cn = try chilkat.JsonObject.init();
    defer json_cn.deinit();
    json_cn.updateString("CN", "cert common name") catch {};

    const cert = try chilkat.Cert.init();
    defer cert.deinit();
    success = if (cert_store.findCert(json_cn, cert)) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try cert_store.getLastErrorText(alloc)});
        return;
    }

    success = if (ftp.setSslClientCert(cert)) true else |_| false;

    // Connect and login to the FTP server.
    success = if (ftp.connect()) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    } else {
        // LastErrorText contains information even when
        // successful. This allows you to visually verify
        // that the secure connection actually occurred.
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
    }

    std.debug.print("Secure FTP Channel Established!\n", .{});
    std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});

    // Do whatever you're doing to do ...
    // upload files, download files, etc...

    // ...
    // ...

    success = if (ftp.disconnect()) true else |_| false;
}