(Objective-C) Inovis VAN FTP/SSL (EDI)

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

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#import <CkoFtp2.h>

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

CkoFtp2 *ftp = [[CkoFtp2 alloc] init];

ftp.Hostname = @"ftpssl.gateway.inovisworks.net";
ftp.Username = @"myLogin";
ftp.Password = @"myPassword";

// The Inovis EDI VAN requires Passive connections:
ftp.Passive = YES;

// 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.AuthTls = YES;

// You'll probably need this property set to YES if you're
// behind a NAT router or firewall.
ftp.PassiveUseHostAddr = YES;

// The Ssl property is for establishing an implicit SSL connection
// on port 990.  Do not set it to YES.  The Inovis VAN
// uses explicit encryption (SSL/TLS).
ftp.Ssl = NO;

// 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.AutoFeat = NO;

// Connect, convert to TLS, and login to the FTP server.
BOOL success = [ftp Connect];
if (success != YES) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}
else {
    // LastErrorText contains information even when
    // successful. This allows you to visually verify
    // that the secure connection actually occurred.
    NSLog(@"%@",ftp.LastErrorText);
}

NSLog(@"%@",@"Connection to Inovis EDI VAN OK!");

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

success = [ftp Disconnect];