Zig

Inovis VAN FTP/SSL (EDI)

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Demonstrates how to connect to the Inovis EDI VAN (FTP/SSL). 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();

    ftp.setHostname("ftpssl.gateway.inovisworks.net");
    ftp.setUsername("myLogin");
    ftp.setPassword("myPassword");

    // The Inovis EDI VAN requires Passive connections:
    ftp.setPassive(true);

    // Note: The Inovis documentation mentions an outbound
    // high port range of 40000-49999.  In passive mode, the
    // FTP server chooses the port number for the data
    // connection.  The Inovis server will choose a port number
    // in the range 40000-49999.  To establish the data connection,
    // your firewall must allow outgoing connections in that port
    // range.

    // This tells Chilkat FTP2 to establish
    // an AUTH TLS secure channel after connecting
    // on the standard FTP port 21.
    ftp.setAuthTls(true);

    // You'll probably need this property set to true if you're
    // behind a NAT router or firewall.
    ftp.setPassiveUseHostAddr(true);

    // The Ssl property is for establishing an implicit SSL connection
    // on port 990.  Do not set it to true.  The Inovis VAN
    // uses explicit encryption (SSL/TLS).
    ftp.setSsl(false);

    // The Chilkat FTP component automatically sends a "FEAT";
    // command after connecting.  This allows the component
    // to better know the FTP server's capabilities.
    // The Invois server doesn't recognize the FEAT command,
    // so disable it:
    ftp.setAutoFeat(false);

    // Connect, convert to TLS, 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("Connection to Inovis EDI VAN OK!\n", .{});

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

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