Trying to connect to FTP gives error 1011

[pascalfriedrich]

trafficstars

Hello,

i have to connect to a local ftp server but .isReachable tells me, that "Task could not completed" with error 1011 (Bad Server Response).

Optional(Error Domain=NSURLErrorDomain Code=-1011 "(null)" UserInfo={NSURL=ftp://192.168.21.3:21/, NSErrorFailingURLKey=ftp://192.168.21.3:21/, NSErrorFailingURLStringKey=ftp://192.168.21.3:21/})

This only occurs with this single server. Read/Write from two different Webserver is working properly.

`class FTPUploadRequest: NSObject {

static let defaultHostname = Config.ftp["hostname"] ?? ""
static let defaultUsername = Config.ftp["user"] ?? ""
static let defaultPassword = Config.ftp["password"] ?? ""
static let defaultPath = Config.ftp["path"] ?? ""

var provider: FTPFileProvider?
var dataToSend: Data?
var file: String?

init(file: String, path: String = FTPUploadRequest.defaultPath, dataToSend: Data, hostname: String = FTPUploadRequest.defaultHostname, username: String = FTPUploadRequest.defaultUsername, password: String = FTPUploadRequest.defaultPassword) {
    self.dataToSend = dataToSend
    super.init()
    
    let credential = URLCredential(user: username, password: password, persistence: .none)
    if let url = URL(string: "ftp://\(hostname):21/") {
        provider = FTPFileProvider(baseURL: url, mode: .extendedPassive, credential: credential)
        print(url)
    }
    
    self.file = file
    provider?.delegate = self
}


func start(completion: @escaping ((Error?) -> ())) {
    
    let path = "\(FTPUploadRequest.defaultPath)\(file ?? "LMDATEI")"
    print(path)
    if let provider = provider {
        provider.isReachable { reachable, error in
            if reachable {
                print("ftp is reachable!")
                provider.writeContents(path: path, contents: self.dataToSend, atomically: true, overwrite: false, completionHandler: completion)
            } else {
                print(error)
                print(error?.localizedDescription)
               // completion(error)
            }
        }
    }
}

}`

[Nathipha]

Have you been able to fix this yet? So far I've tested it with 4 ftp servers:

1. Server I set up on my other PC: ftp://10.1.1.210
2. Something like (changed name but actually exists!): ftp://ftp.mydomain.com
3. Tele2's test server: ftp://speedtest.tele2.net
4. Other test server: ftp://test.rebex.net

I get the same error message for all of them, even though it actually lets connects to the server BUT I can't access files on the second server, "contentsOfDirectory" always returns an empty array. Everything's fine with the other 3 servers server - can search folders and download/upload files.