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2013-02-14 2013-03-12
no summary (97.124.95.235) no summary (94.132.71.107) (hidden)
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cscript /nologo example.js cscript /nologo example.js
</code> </code>
 +
 +===== [[checking_file_existence]] Checking file existence =====
 +
 +&deprecated_use_net
 +
 +You may use following [[guide_automation_advanced#wsh|Windows script host JavaScript code]] (''example.js''):
 +
 +<code javascript>
 +// Configuration
 +
 +// Remote file search for
 +var FILEPATH = "/home/user/myfile.dat";
 +// Session to connect to
 +var SESSION = "session";
 +// Path to winscp.com
 +var WINSCP = "c:\\program files\\winscp\\winscp.com";
 +
 +var filesys = WScript.CreateObject("Scripting.FileSystemObject");
 +var shell = WScript.CreateObject("WScript.Shell");
 + 
 +var logfilepath = filesys.GetSpecialFolder(2) + "\\" + filesys.GetTempName() + ".xml";
 +
 +var p = FILEPATH.lastIndexOf('/');
 +var path = FILEPATH.substring(0, p);
 +var filename = FILEPATH.substring(p + 1);
 +
 +var exec;
 +
 +// run winscp to check for file existence
 +exec = shell.Exec("\"" + WINSCP + "\" /log=\"" + logfilepath + "\"");
 +exec.StdIn.Write(
 +    "option batch abort\n" +
 +    "open \"" + SESSION + "\"\n" +
 +    "ls \"" + path + "\"\n" +
 +    "exit\n");
 +
 +// wait until the script finishes
 +while (exec.Status == 0)
 +{
 +    WScript.Sleep(100);
 +    WScript.Echo(exec.StdOut.ReadAll());
 +}
 +
 +if (exec.ExitCode != 0)
 +{
 +    WScript.Echo("Error checking for file existence");
 +    WScript.Quit(1);
 +}
 +
 +// look for log file
 +var logfile = filesys.GetFile(logfilepath);
 +
 +if (logfile == null)
 +{
 +    WScript.Echo("Cannot find log file");
 +    WScript.Quit(1);
 +}
 +
 +// parse XML log file
 +var doc = new ActiveXObject("MSXML2.DOMDocument");
 +doc.async = false;
 +doc.load(logfilepath);
 +
 +doc.setProperty("SelectionNamespaces",
 +    "xmlns:w='http://winscp.net/schema/session/1.0'");
 +
 +var nodes = doc.selectNodes("//w:file/w:filename[@value='" + filename + "']");
 +
 +if (nodes.length > 0)
 +{
 +    WScript.Echo("File found");
 +    // signalize file existence to calling process;
 +    // you can also continue with processing (e.g. downloading the file)
 +    // directly from the script here
 +    WScript.Quit(0);
 +}
 +else
 +{
 +    WScript.Echo("File not found");
 +    WScript.Quit(1);
 +}
 +</code>
 +
 +Run the script with command:
 +<code>
 +cscript /nologo example.js
 +</code>
 +
 +Following batch file shown how to continue with processing based on file exitence:
 +<code>
 +cscript /nologo example.js
 +if errorlevel 1 goto error
 +
 +echo File exists, do something
 +rem Do something
 +exit
 +
 +:error
 +echo Error or file not exists
 +</code>
 +
 +Alternatively you can continue with the processing directly in JavaScript code as suggested by respective comments.
 +
 +===== [[local_move_after_successful_upload]] Moving local files to different location after successful upload =====
 +&deprecated_use_net
 +
 +WinSCP does not support move command for local files. Instead you can combine WinSCP script with batch file:
 +
 +<code winscp>
 +option batch abort
 +option confirm off
 +# Connect
 +open mysession
 +# Upload the files
 +put *.*
 +</code>
 +
 +Launch the above script from batch file like the one below:
 +
 +<code>
 +winscp.com /script=example.txt
 +if errorlevel 1 goto error
 +
 +echo Upload succeeded, moving local files
 +move *.* c:\backup\
 +exit
 +
 +:error
 +echo Upload failed, keeping local files
 +</code>
 +
 +===== [[synchronize_any_local_file]] Shortcut to synchronize any local directory with remote directory =====
 +
 +You may want to have a script that synchronizes any local directory with a same-named subdirectory of fixed remote path, e.g.:
 +  * ''c:\www\gallery'' with ''/home/user/www/gallery'';
 +  * ''c:\documents and settings\username\www\forum'' with ''/home/user/www/forum''.
 +
 +Such a script is particularly useful for integrating with Windows Explorer's 'Send To' menu.
 +
 +First create wrapper batch file to store the paths you want to synchronize into environment variables (change ''/home/user/www/'' to remote path root you want to synchronize against):
 +<code>
 +winscp.com /script=example.txt /parameter %1 "/home/user/www/%~n1%~x1"
 +</code>
 +
 +The script ''example.txt'' may look like:
 +
 +<code winscp>
 +# Being intended for interactive session, we are not enabling batch mode
 +# Connect
 +open mysession
 +# Synchronize paths provided via environment variables
 +synchronize remote "%1%" "%2%"
 +</code>
 +
 +Then you can make a shortcut to the batch file:
 +  * When placed on desktop, you can drop any local directory to it to start synchronization;
 +  * When placed to ''c:\documents and settings\username\sendto'', you can use //Send To > Your Shortcut// from context menu of any local directory.
 +
 +===== [[auto_compress_download]] Automatically compress files before download =====
 +Following script compresses selected files into tar/gzip archive and downloads it:
 +
 +<code winscp>
 +option batch abort
 +option confirm off
 +open mysession
 +cd %1%
 +call tar -czf /tmp/archive.tar.gz %2%
 +lpwd
 +get -delete /tmp/archive.tar.gz
 +exit
 +</code>
 +
 +Launch the above script from batch file like the one below, which automatically decompresses the archive:
 +
 +<code>
 +winscp.com /script=example.txt /parameter %*
 +if errorlevel 1 goto error
 +
 +echo Retrieving files succeeded
 +gzip -d archive.tar.gz
 +tar -xf archive.tar
 +del archive.tar
 +exit
 +
 +:error
 +echo Retrieving files failed
 +</code>
 +
 +Example of running the batch file to download all files under ''/home/user/www'':
 +
 +<code>
 +example.bat /home/user/www *.*
 +</code>
 +
 +The batch file needs Windows ports of ''gzip'' and ''tar'' tools. You can get them from [[http://sourceforge.net/projects/unxutils/|UnxUtils]] project.
 +
 +===== [[vbnet_robust_example]] Running WinSCP from VB.NET  =====
 +&deprecated_use_net
 +
 +Following is more robust alternative to simple example contained in guide to [[guide_dotnet|SFTP file transfers in .NET]].
 +
 +<code vbnet>
 +Imports System
 +Imports System.IO
 +Imports System.Diagnostics
 +Imports System.Xml
 +Imports System.Xml.XPath
 +Imports System.Configuration.ConfigurationManager
 +
 +Public Class SFTP
 +    ' SFTP support, built on WinSCP
 +    Public Shared Function PutSFTP(ByRef filename As String, ByRef remotehost As String, ByRef username As String, ByRef password As String, _
 +                          Optional ByVal outfilename As String = Nothing, Optional ByVal output As String = Nothing,
 +                          Optional ByRef errmsg As String = Nothing) As Boolean
 +
 +        ' Run hidden WinSCP process
 +        Dim winscp As Process = New Process()
 +        Dim logname As String = Path.ChangeExtension(Path.GetTempFileName, "xml")
 +        With winscp.StartInfo
 +            ' SFTPExecutable needs to be defined in app.config to point to winscp.com
 +            Try
 +                .FileName = AppSettings("SFTPExecutable")
 +                If .FileName Is Nothing OrElse .FileName.Length = 0 Then Throw (New Exception("from PutSFTP: SFTPExecutable not set in config file."))
 +            Catch ex As Exception
 +                errmsg = ex.Message
 +                Return False
 +            End Try
 +            .Arguments = "/log=" + logname
 +            .UseShellExecute = False
 +            .RedirectStandardInput = True
 +            .RedirectStandardOutput = True
 +            .CreateNoWindow = True
 +        End With
 +        Try
 +            winscp.Start()
 +        Catch ex As Exception
 +            errmsg = "from PutSFTP:  Could not run the WinSCP executable " & winscp.StartInfo.FileName & Environment.NewLine & ex.Message
 +            Return False
 +        End Try
 +
 +        ' Feed in the scripting commands
 +        With winscp.StandardInput
 +            .WriteLine("option batch abort")
 +            .WriteLine("option confirm off")
 +            .WriteLine("open sftp://" & username & ":" & password & "@" & remotehost)
 +            If outfilename Is Nothing Then .WriteLine("put " & filename) Else .WriteLine("put " & filename & " """ & outfilename & """")
 +            .Close()
 +        End With
 +        If Not output Is Nothing Then output = winscp.StandardOutput.ReadToEnd()
 +
 +        ' Wait until WinSCP finishes
 +        winscp.WaitForExit()
 +
 +        ' Parse and interpret the XML log
 +        ' (Note that in case of fatal failure the log file may not exist at all)
 +        If Not File.Exists(logname) Then
 +            errmsg = "from PutSFTP:  The WinSCP executable appears to have crashed."
 +            Return False
 +        End If
 +
 +        Dim log As XPathDocument = New XPathDocument(logname)
 +        Dim ns As XmlNamespaceManager = New XmlNamespaceManager(New NameTable())
 +        ns.AddNamespace("w", "http://winscp.net/schema/session/1.0")
 +        Dim nav As XPathNavigator = log.CreateNavigator()
 +
 +        ' Success (0) or error?
 +        Dim status As Boolean = (winscp.ExitCode = 0)
 +        If Not status Then
 +            errmsg = "from PutSFTP:  There was an error transferring " & filename & "."
 +            ' See if there are any messages associated with the error
 +            For Each message As XPathNavigator In nav.Select("//w:message", ns)
 +                errmsg &= Environment.NewLine & message.Value
 +            Next message
 +        End If
 +
 +        Try
 +            My.Computer.FileSystem.DeleteFile(logname)
 +        Catch ex As Exception
 +            ' at least we tried to clean up
 +        End Try
 +
 +        Return status
 +    End Function
 +End Class
 +</code>
 +
 +<trailer>
 +===== Further Reading =====
 +  * Guide to [[guide_automation|scripting/automation]].
 +  * [[library|WinSCP .NET assembly]]
 +</trailer>
 +
 +<nosplit>
 +===== Other Examples =====
 +  * Guide to [[guide_automation|scripting/automation]];
 +  * Guide to [[guide_automation_advanced|advanced scripting]];
 +  * See [[library_examples|WinSCP .NET assembly examples]] for advanced tasks.
 +</nosplit>
===== [[checking_file_existence]] Checking file existence ===== ===== [[checking_file_existence]] Checking file existence =====

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