DataFlex

FTP Sync Download Tree w/ Must-Match Constraints

See more FTP Examples

Demonstrates how synchronize a directory tree in the download direction, but only for files matching a set of wildcard filenames.

Note: This example requires Chilkat v9.5.0.76 or greater.

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoFtp
    Integer iMode
    Variant vSt
    Handle hoSt
    Integer iNumFiles
    Integer i
    String sRemoteFilename
    String sTemp1

    Move False To iSuccess

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

    Get Create (RefClass(cComChilkatFtp2)) To hoFtp
    If (Not(IsComObjectCreated(hoFtp))) Begin
        Send CreateComObject of hoFtp
    End

    Set ComHostname Of hoFtp To "ftp.something.com"
    Set ComUsername Of hoFtp To "my_login"
    Set ComPassword Of hoFtp To "my_password"

    // Connect and login to the FTP server.
    Get ComConnect Of hoFtp To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoFtp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Set the current remote directory to the root of
    // the tree to be downloaded.
    Get ComChangeRemoteDir Of hoFtp "/subDir1" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoFtp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Possible synchronization modes are:
    // mode=0: Download all files
    // mode=1: Download all files that do not exist on the local filesystem.
    // mode=2: Download newer or non-existant files.
    // mode=3: Download only newer files. If a file does not already exist on the local filesystem, it is not downloaded from the server..
    // mode=5: Download only missing files or files with size differences.
    // mode=6: Same as mode 5, but also download newer files.

    // This example will download all files, but only those files having filenames
    // that match *.gif and *.eml

    // Imagine our remote directory tree has these files and directories:

    // 	accentedLatin1.txt
    // 	accentedUtf8.txt
    // 	alice.key
    // 	anter_cert.pem
    // 	chiliPepper.gif
    // 	helloWorld.pdf
    // 	abc/chiliPepper.gif
    // 	abc/ghk/
    // 	data/chiliPepper.gif
    // 	data/xyz/dkimHtmlBody.txt
    // 	data/xyz/dkimVerifyTest.eml
    // 	data/xyz/emailForCreateDsn.eml
    // 	text/frenchUtf8.txt
    // 	text/helloWorld.txt
    // 	text/PolishEmailBody.txt
    // 	text/something/

    // Indicate that we only want to create auto-create local directories (if needed)
    // for the files that are actually downloaded.  If SyncCreateAllLocalDirs remains
    // True, then the corresponding local directory is created for each remote directory
    // traversed regardless of whether files within are downloaded.
    Set ComSyncCreateAllLocalDirs Of hoFtp To False

    Set ComSyncMustMatch Of hoFtp To "*.eml; *.gif"
    Move 0 To iMode
    Get ComSyncLocalTree Of hoFtp "c:/temp/subDir1" iMode To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoFtp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComDisconnect Of hoFtp To iSuccess

    // Show the files downloaded.
    Get Create (RefClass(cComChilkatStringTable)) To hoSt
    If (Not(IsComObjectCreated(hoSt))) Begin
        Send CreateComObject of hoSt
    End
    Get pvComObject of hoSt to vSt
    Send ComGetSyncedFiles To hoFtp vSt

    Get ComCount Of hoSt To iNumFiles
    Move 0 To i

    While (i < iNumFiles)
        Get ComStringAt Of hoSt i To sTemp1
        Showln sTemp1
        Move (i + 1) To i
    Loop

    // Output showing the files downloaded:

    // chiliPepper.gif
    // abc/chiliPepper.gif
    // data/chiliPepper.gif
    // data/xyz/dkimVerifyTest.eml
    // data/xyz/emailForCreateDsn.eml


End_Procedure