Set an FTPS Client Certificate from PEM

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Demonstrates the Chilkat Ftp2.SetSslClientCertPem method, which configures a client certificate and private key from PEM. The first argument may be the PEM text or a PEM file path, and the second is the private-key password (empty when the key is not encrypted).

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

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

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

    // Demonstrates the Ftp2.SetSslClientCertPem method, which configures a client certificate and
    // private key from PEM.  The 1st argument is the PEM text or a PEM file path, and the 2nd is the
    // private-key password (empty when the key is not encrypted).

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

    ftp.setHostname("ftp.example.com");
    ftp.setUsername("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.setPassword("myPassword");

    // Use explicit FTPS (AUTH TLS) on the standard FTP port.
    ftp.setAuthTls(true);

    // Provide the PEM client certificate before connecting.  The password should come from a secure
    // source rather than being hard-coded.
    const pem_password = "myPemPassword";
    ftp.setSslClientCertPem("qa_data/client.pem", pem_password) catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    ftp.connect() catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Connected with a PEM client certificate.\n", .{});

    ftp.disconnect() catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };
}