Zig Requires Chilkat v10.1.2+

Upload to Tumbleweed SecureTransport FTPS Server

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Demonstrates how to connect, authenticate, and upload file to a Tumbleweed Secure Transport SSL FTP Server. Instead of providing a login name and password, you pass the string "site-auth" for the username, and an empty string for the password. You must also provide a client-side digital certificate -- as the certificate's credentials and validity are used to authenticate. 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.

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

    // This code has been tested with the Tumbleweed server
    // at sft.wellsfargo.com
    ftp.setHostname("sft.wellsfargo.com");

    // Use these exact strings for the username and password:
    ftp.setUsername("site-auth");
    ftp.setPassword("");

    // Establish an AUTH SSL secure channel after connecting.
    // Your client-side certificate is used for authentication when
    // the SSL channel is established.
    ftp.setAuthSsl(true);

    // The Ssl property is for establishing an implicit SSL connection
    // on port 990.  Do not set it.
    ftp.setSsl(false);

    // Load a certificate from a .pfx
    // A PFX may contain several certs, including the certificates
    // in a chain of authority.
    const cert_store = try chilkat.CertStore.init();
    defer cert_store.deinit();
    const password = "***";
    // Load the certs from a PFX into an in-memory certificate store:
    success = if (cert_store.loadPfxFile("my.pfx", password)) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try cert_store.getLastErrorText(alloc)});
        return;
    }

    // Find the desired certificate.
    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("Certificate not found!\n", .{});
        return;
    }

    // Tell the Chilkat FTP2 component to use the client-side
    // cert for the SSL connection:
    success = if (ftp.setSslClientCert(cert)) true else |_| false;

    // Connect and authenticate with 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", .{});

    // Change to the remote directory where the file will be
    // uploaded.  If your file is to be uploaded to the FTP user
    // account's home directory, this is not necessary.
    ftp.changeRemoteDir("someSubDir") catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    // You may include an absolute or relative path with the
    // local filename.  If no path is included, the file should
    // be present in the current working directory of the calling
    // process.
    const local_filename = "someFile.dat";
    const remote_filename = "someFile.dat";

    // Upload the file.
    ftp.putFile(local_filename, remote_filename) catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

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