(JavaScript) SFTP Read Text File

Demonstrates how to open a text file on the SSH server and read text.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

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

var sftp = new CkSFtp();

// Set some timeouts, in milliseconds:
sftp.ConnectTimeoutMs = 5000;
sftp.IdleTimeoutMs = 15000;

// Connect to the SSH server.  
// The standard SSH port = 22
// The hostname may be a hostname or IP address.
var hostname = "sftp.example.com";
var port = 22;
success = sftp.Connect(hostname,port);
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Authenticate with the SSH server.  Chilkat SFTP supports
// both password-based authenication as well as public-key
// authentication.  This example uses password authenication.
success = sftp.AuthenticatePw("myLogin","myPassword");
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// After authenticating, the SFTP subsystem must be initialized:
success = sftp.InitializeSftp();
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Open a file for reading.
var handle;
handle = sftp.OpenFile("myTest.txt","readOnly","openExisting");
if (sftp.LastMethodSuccess !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Assume the file we are reading contains the following text:
// abcdefghijklmnopqrstuvwxyz1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ
// (in ANSI format -- i.e. one byte per char).

// Read 26 bytes:
var sText;
sText = sftp.ReadFileText(handle,26,"ansi");
if (sftp.LastMethodSuccess !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Should print "abcdefghijklmnopqrstuvwxyz"
console.log(sText);

// Read the next 10 bytes.
sText = sftp.ReadFileText(handle,10,"ansi");
if (sftp.LastMethodSuccess !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Should print "1234567890"
console.log(sText);

// Read the next 26 bytes.
sText = sftp.ReadFileText(handle,26,"ansi");
if (sftp.LastMethodSuccess !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Should print "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
console.log(sText);

// Close the file.
success = sftp.CloseHandle(handle);
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

console.log("Success.");