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/Network/SSH/SSH tunnel for database
Required plugins for this example: MBS Network Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /Network/SSH/SSH tunnel for database
This example is the version from Mon, 15th Jul 2018.
Project "SSH tunnel for database.xojo_binary_project"
Class App Inherits ConsoleApplication
Const kenn = ""
EventHandler Function Run(args() as String) As Integer const Address = "" const username = "xxx" const password = "xxx" const keyfile1 = "" const keyfile2 = "" dim hostAddr as string = System.Network.LookupIPAddress(Address) print hostAddr //* Create a session instance and start it up. This will trade welcome //* banners, exchange keys, and setup crypto, compression, and MAC layers dim session as new MySSH2SessionMBS(hostAddr, 22) session.MyPassword = password if session.Handle = 0 then print "Failed to connect socket!" Return 1 end if session.SessionHandshake if session.lasterror<>0 then print "Failure establishing SSH session" Return 9 end if //* At this point we havn't authenticated. The first thing to do is check //* the hostkey's fingerprint against our known hosts Your app may have it //* hard coded, may go to a file, may present it to the user, that's your //* call dim fingerprint as string = session.HostKeyHash(session.kHostKeyHashSHA1) print "Fingerprint: "+EncodeHex(fingerprint) //* check what authentication methods are available */ dim userauthlist as string = session.UserAuthList(username) dim authPassword as Boolean = false dim authKeyboardInteractive as Boolean = false dim authPublickey as Boolean = false print "Authentication methods: "+ userauthlist if instr(userauthlist, "password")>0 then authPassword = true end if if instr(userauthlist, "keyboard-interactive")>0 then authKeyboardInteractive = true end if if instr(userauthlist, "publickey")>0 then authPublickey = true end if if authPassword then //* We could authenticate via password */ session.UserAuthPassword(username, password) if session.LastError = 0 then // ok print "Authentication by password succeeded." else // failed print "Authentication by password failed!" Return 1 end if elseif authKeyboardInteractive then //* Or via keyboard-interactive */ session.UserAuthKeyboardInteractive username if session.LastError <> 0 then print "Authentication by keyboard-interactive failed!" return 10 else print "Authentication by keyboard-interactive succeeded." end if //* Or by public key */ elseif authPublickey then session.UserAuthPublicKeyFromFile(username, keyfile1, keyfile2, password) if session.LastError <> 0 then print "Authentication by public key failed!" Return 4 else print "Authentication by public key succeeded." end if else print "No supported authentication methods found!" Return 3 end if // here we are authorized //* Open tunnel */ dim tunnel as new SSH2TunnelMBS(session) tunnel.LocalAddress = "" tunnel.LocalPort = 3307 tunnel.RemoteAddress = "" tunnel.RemotePort = 3306 // run it // while it runs, connect to database server // don't alter session while tunnel runs tunnel.Run // wait a bit to let things happen in background app.DoEvents(50) // print message for debugging #if DebugBuild then print tunnel.Messages #endif // now use it, e.g. with MySQL via Xojo's plugin dim db as new MySQLCommunityServer db.Host = "" db.DatabaseName = "xxx" db.UserName = "xxx" db.Password = "xxx" db.Port = 3307 if db.Connect then print "Connected" else print "Failed to connect: "+db.ErrorMessage end if // shutdown db = nil tunnel.Cancel = true // wait for shutdown do app.DoEvents 10 loop until not tunnel.Running print tunnel.Messages session.Disconnect "Normal Shutdown, Thank you for playing" session = nil print "done" Return 0 End EventHandler
End Class
Class MySSH2SessionMBS Inherits SSH2SessionMBS
EventHandler Sub KeyboardCallback(Name as string, Instruction as string, PromptCount as integer, Prompts() as SSH2UserAuthKeyboardInteractivePromptMBS, responses() as SSH2UserAuthKeyboardInteractiveResponseMBS) print "Name: "+Name print "Instruction: "+Instruction for each p as SSH2UserAuthKeyboardInteractivePromptMBS in Prompts print p.Text next if PromptCount = 1 then responses(0).Text = MyPassword end if End EventHandler
Property MyPassword As string
End Class
End Project

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