Xbase++

Check if an FTP Listing Entry is a Directory

Demonstrates the Chilkat Ftp2.GetIsDirectory method, which returns whether a cached directory-listing entry is a directory. The only argument is a zero-based index. An invalid index returns false.

Background: Distinguishing directories from files is the first thing most listing code needs — to render a folder tree, to decide whether to recurse, or to apply different handling. This reads the type from the cached listing, so it is a local lookup rather than a server query. Reliability depends on the server's listing format conveying the type, which the common Unix and MLSD formats do.

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LOCAL nSuccess
LOCAL oFtp
LOCAL n
LOCAL i
LOCAL cName

nSuccess := 0

//  Demonstrates the Ftp2.GetIsDirectory method, which returns whether a cached directory-listing
//  entry is a directory.  The only argument is a zero-based index into the current listing.

oFtp := CreateObject("Chilkat.Ftp2")

oFtp:Hostname := "ftp.example.com"
oFtp:Username := "myFtpLogin"

//  Normally you would not hard-code the password in source.  You should instead obtain it
//  from an interactive prompt, environment variable, or a secrets vault.
oFtp:Password := "myPassword"

nSuccess := oFtp:Connect()
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    RETURN
ENDIF

nSuccess := oFtp:ChangeRemoteDir("public_html")
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    RETURN
ENDIF

//  GetDirCount retrieves the directory listing on the first call and returns the number of
//  entries.  A negative return indicates failure.
n := oFtp:GetDirCount()
IF (n < 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    RETURN
ENDIF

FOR i := 0 TO n - 1
    cName := oFtp:GetFilename(i)
    IF (oFtp:GetIsDirectory(i))
        ? "[DIR]  " + cName
    ELSE
        ? "       " + cName
    ENDIF

NEXT

nSuccess := oFtp:Disconnect()
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    RETURN
ENDIF

oFtp:destroy()