Differences
This shows you the differences between the selected revisions of the page.
| 2013-01-18 | 2013-01-23 | ||
| no summary (62.38.54.57) (hidden) | ssh root@192.168.1.11 (188.176.170.253) (hidden) | ||
| Line 25: | Line 25: | ||
| </code> | </code> | ||
| + | |||
| + | ===== [[download_timestamped_filename]] Downloading file to timestamped-filename ===== | ||
| + | |||
| + | ===== Level 2 Headline ===== | ||
| + | |||
| + | &deprecated_use_net | ||
| + | |||
| + | You may use following [[guide_automation_advanced#wsh|Windows script host JavaScript code]] (''example.js''): | ||
| + | |||
| + | <code javascript> | ||
| + | // Local path to download to (keep trailing slash) | ||
| + | var LOCALPATH = ".\\"; | ||
| + | // Remote path to download from (keep trailing slash) | ||
| + | var REMOTEPATH = "/"; | ||
| + | // File to download | ||
| + | var FILE = "winscp421.exe"; | ||
| + | // Session to connect to | ||
| + | var SESSION = "test@127.0.0.1"; | ||
| + | // Path to winscp.com | ||
| + | var WINSCP = "c:\\program files\\winscp\\winscp.com"; | ||
| + | |||
| + | // helper function to pad zeroes to the left of number | ||
| + | function pad(n, len) | ||
| + | { | ||
| + | var s = n.toString(); | ||
| + | while (s.length < len) | ||
| + | { | ||
| + | s = '0' + s; | ||
| + | } | ||
| + | return s; | ||
| + | } | ||
| + | |||
| + | var date = new Date(); | ||
| + | |||
| + | // format timestamp | ||
| + | var stamp = | ||
| + | pad(date.getFullYear(), 4) + | ||
| + | pad(date.getMonth(), 2) + | ||
| + | pad(date.getDate(), 2) + | ||
| + | pad(date.getHours(), 2) + | ||
| + | pad(date.getMinutes(), 2) + | ||
| + | pad(date.getSeconds(), 2); | ||
| + | |||
| + | var shell = WScript.CreateObject("WScript.Shell"); | ||
| + | |||
| + | // run winscp to download the file into timestamped-filename | ||
| + | exec = shell.Exec("\"" + WINSCP + "\""); | ||
| + | exec.StdIn.Write( | ||
| + | "option batch abort\n" + | ||
| + | "open \"" + SESSION + "\"\n" + | ||
| + | "get \"" + REMOTEPATH + FILE + "\" \"" + LOCALPATH + FILE + "." + stamp + "\"\n" + | ||
| + | "exit\n"); | ||
| + | |||
| + | // wait until the script finishes | ||
| + | while (exec.Status == 0) | ||
| + | { | ||
| + | WScript.Sleep(100); | ||
| + | WScript.Echo(exec.StdOut.ReadAll()); | ||
| + | } | ||
| + | </code> | ||
| + | |||
| + | Run the script with command: | ||
| + | <code> | ||
| + | cscript /nologo example.js | ||
| + | </code> | ||
| + | |||
| + | ===== [[download_most_recent_file]] Downloading the most recent file ===== | ||
| + | &deprecated_use_net | ||
| + | |||
| + | You may use following [[guide_automation_advanced#wsh|Windows script host JavaScript code]] (''example.js''): | ||
| + | |||
| + | <code javascript> | ||
| + | // Configuration | ||
| + | |||
| + | // Local path to download to (keep trailing slash) | ||
| + | var LOCALPATH = "c:\\downloaded\\"; | ||
| + | // Remote path to search in (keep trailing slash) | ||
| + | var REMOTEPATH = "/home/user/"; | ||
| + | // Mask of files to search for | ||
| + | var FILEMASK = "*.*"; | ||
| + | // 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 exec; | ||
| + | |||
| + | // run winscp to get list of file in the remote directory into XML log | ||
| + | exec = shell.Exec("\"" + WINSCP + "\" /log=\"" + logfilepath + "\""); | ||
| + | exec.StdIn.Write( | ||
| + | "option batch abort\n" + | ||
| + | "open \"" + SESSION + "\"\n" + | ||
| + | "ls \"" + REMOTEPATH + FILEMASK + "\"\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 retrieving list of files"); | ||
| + | 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"); | ||
| + | |||
| + | // find the latest file | ||
| + | var filenameLatest = null; | ||
| + | var modificationLatest = null; | ||
| + | for (var i = 0; i < nodes.length; ++i) | ||
| + | { | ||
| + | var filename = nodes[i].selectSingleNode("w:filename/@value"); | ||
| + | var modification = nodes[i].selectSingleNode("w:modification/@value"); | ||
| + | if ((filename != null) && | ||
| + | (filename.value != ".") && | ||
| + | (filename.value != "..") && | ||
| + | (modification != null)) | ||
| + | { | ||
| + | // can compare timestamps stringwise | ||
| + | if ((modificationLatest == null) || | ||
| + | (modificationLatest < modification.value)) | ||
| + | { | ||
| + | modificationLatest = modification.value; | ||
| + | filenameLatest = filename.value; | ||
| + | } | ||
| + | } | ||
| + | } | ||
| + | |||
| + | // no file in the log | ||
| + | if (filenameLatest == null) | ||
| + | { | ||
| + | WScript.Echo("No file found"); | ||
| + | WScript.Quit(0); | ||
| + | } | ||
| + | |||
| + | // run winscp to download the latest file | ||
| + | exec = shell.Exec("\"" + WINSCP + "\""); | ||
| + | exec.StdIn.Write( | ||
| + | "option batch abort\n" + | ||
| + | "option confirm off\n" + | ||
| + | "open \"" + SESSION + "\"\n" + | ||
| + | "get \"" + REMOTEPATH + filenameLatest + "\" \"" + LOCALPATH + "\"\n" + | ||
| + | "exit\n"); | ||
| + | |||
| + | // wait until the script finishes | ||
| + | while (!exec.StdOut.AtEndOfStream) | ||
| + | { | ||
| + | WScript.Echo(exec.StdOut.ReadAll()); | ||
| + | } | ||
| + | |||
| + | if (exec.ExitCode != 0) | ||
| + | { | ||
| + | WScript.Echo("Error downloading " + filenameLatest); | ||
| + | WScript.Quit(1); | ||
| + | } | ||
| + | </code> | ||
| + | |||
| + | Run the script with command: | ||
| + | <code> | ||
| + | cscript /nologo example.js | ||
| + | </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 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 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> | ||
| ===== [[download_timestamped_filename]] Downloading file to timestamped-filename ===== | ===== [[download_timestamped_filename]] Downloading file to timestamped-filename ===== | ||