(Xojo Plugin) SFTP Get Size of File on Server

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Demonstrates how to get the size of an existing file on the server.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

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

Dim sftp As New Chilkat.SFtp

// Set some timeouts, in milliseconds:
sftp.ConnectTimeoutMs = 5000
sftp.IdleTimeoutMs = 10000

// Connect to the SSH server.  
// The standard SSH port = 22
// The hostname may be a hostname or IP address.
Dim hostname As String
hostname = "sftp.example.com"
Dim port As Int32
port = 22
Dim success As Boolean
success = sftp.Connect(hostname,port)
If (success <> True) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

// 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) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

// After authenticating, the SFTP subsystem must be initialized:
success = sftp.InitializeSftp()
If (success <> True) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

// Assuming we know the file size won't be too large, we get the size as a 32-bit integer.
// For SFTP, the remote file path is always either a path relative to the HOME directory of the user account, or an absolute path on the server.
Dim bFollowLinks As Boolean
bFollowLinks = True
Dim bIsHandle As Boolean
bIsHandle = False
Dim fileSize As Int32
fileSize = sftp.GetFileSize32("someDir/someFile.dat",bFollowLinks,bIsHandle)
If (fileSize < 0) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

System.DebugLog("file size = " + Str(fileSize))

// If the file size might be too large for a 32-bit signed integer, then get the size as a decimal string.
// You can convert the string to a 64-bit integer in your programming language.
Dim fileSizeStr As String
fileSizeStr = sftp.GetFileSizeStr("someDir/someFile.dat",bFollowLinks,bIsHandle)
If (sftp.LastMethodSuccess = False) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

System.DebugLog("file size = " + fileSizeStr)

// You can alternatively get the size with an open file handle.
Dim handle As String
handle = sftp.OpenFile("someDir/someFile.dat","readOnly","openExisting")
If (sftp.LastMethodSuccess <> True) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

// Get the size using the handle.
bIsHandle = True
fileSize = sftp.GetFileSize32("someDir/someFile.dat",bFollowLinks,bIsHandle)
If (fileSize < 0) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

System.DebugLog("file size = " + Str(fileSize))

// -----------------------------------------------------------------------------
// Don't forget to close the file handle.
// Otherwise open handles will accumulate on the server until eventually a limit
// is reached and the server will fail on a call to OpenFile.
// -----------------------------------------------------------------------------

// Close the file.
success = sftp.CloseHandle(handle)
If (success <> True) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If