[RESOLVED] dynamically check version of exe file in FTP - VB.Net

[remya1000]

to find version of an exe, i use this code

Dim FileProperties As FileVersionInfo = FileVersionInfo.GetVersionInfo(Application.ExecutablePath)
Textbox1.Text = FileProperties.FileVersion

How come we find a version of an exe that's uploaded in FTP? i need the version of an exe that's already there in FTP. i know the path where the exe file is saved in FTP.

if you have any idea, please help me...

Thanks in advance...

[mrjohn]

In my application I include version into file name then I use .ListDirectory to get files list and extract version from the name

wtheFTP.Method = WebRequestMethods.Ftp.ListDirectory

Hope this help.

[remya1000]

Thanks mrjohn for your reply...

so we cannot get version number of an exe from FTP.

if you include version into file name, then how come you check the exact file from .ListDirectory.

what i'm trying to do is, i need to check the version number of exe in FTP and check version number of exe in local machine. if it's different, then need to download exe from FTP.

Thanks in advance.

[cicatrix]

FTP protocol provides little help for that.
In order to get the version either place it in the file name or place some other file on the ftp server. It can contain the current version in its name (the wastest way).
To update you should place the executable on the server and update the version information file.
I've used a similar approach with the only difference that I placed 'version.txt' file on the server and put the version inside. It was only after when I realized that I could get by without downloading by simply looking for a filename that fits some pre-determined pattern.

[remya1000]

thanks cicatrix for your reply...

so in order to find the version number, i need to create 'version.txt' in FTP and put exe's version inside that. and when i want to check version number from FTP, then download version.txt file and read the version number.

That's what you mentioned? is that right?

Thanks in advance...

[cicatrix]

Either like that, or simply put a file ver0001 on the ftp folder (version 1) then change it to ver0002 (version 2), etc.
In this case you wouldn't even have to download it - you can read version right from the file name.

[remya1000]

thanks cicatrix for your reply.

i will try that and will let you know about that.

[mrjohn]

You're welcome !
We have files like this :
myAPP_1_0_1_69.exe

wtheFTP = CType(System.Net.WebRequest.Create(wFTPupdPath), Net.FtpWebRequest)
            wtheFTP.Credentials = New NetworkCredential(wFTPUsr, wFTPsw)
            wtheFTP.Method = WebRequestMethods.Ftp.ListDirectory
 
            Dim listResponse As FtpWebResponse = CType(wtheFTP.GetResponse, Net.FtpWebResponse)
 
            Dim reader As StreamReader = New StreamReader(listResponse.GetResponseStream())
            While reader.Peek >= 0
                wrLN = reader.ReadLine
 
                If wrLN.ToLower.StartsWith(Me.wAppMsk.ToLower) Then Me.wstrVerFTP = wrLN
            End While
            If Not (reader Is Nothing) Then
                reader.Close()
                reader.Dispose()
            End If
.....................
 
 Me.wstrVerFTP = Me.wstrVerFTP.Substring(10, Me.wstrVerFTP.Length - 10).Replace(".exe", "")
 
        Dim wArrTmp() As String = Me.wstrVerFTP.Split("_"c)
        If wArrTmp.Length = 4 Then
 
            wVer_Maj = CInt(wArrTmp(0))
            wVer_Min = CInt(wArrTmp(1))
            wVer_Bui = CInt(wArrTmp(2))
            wVer_Rev = CInt(wArrTmp(3))
        End If

So with .ListDirectory you get a list of files in ftp directory,then you get the file name wanted :

....
If wrLN.ToLower.StartsWith(Me.wAppMsk.ToLower) Then Me.wstrVerFTP = wrLN

...
then extract version from the name as above

[remya1000]

Attached Class used for downloading files from FTP.

the exe name is getting too big. so instead of adding the version number in exe name, i will create a text file in that folder that contains verison number. so i can check this .txt file name to get version number.

for example: the text file name is going to be Ver.1.0.0.34.txt. 1.0.0.34 is version number, that keeps on change.

is there a way i can check the file that starts with "Ver" and ends with ".txt". so i can find the version number.

how come i check the file name from FTP?

if you have any idea, please let me know.

Thanks in advance...

[remya1000]

Thanks for your help. i tried the code you mentioned.

wtheFTP = CType(System.Net.WebRequest.Create(wFTPupdPath), Net.FtpWebRequest)
wtheFTP.Credentials = New NetworkCredential(wFTPUsr, wFTPsw)
wtheFTP.Method = WebRequestMethods.Ftp.ListDirectory

and import

Imports System.Web
Imports System.Net
Imports System.Net.WebRequest

but it says "Type FTPWebREquset is not declared".
also "Type WebRequestMethods is not declared".
also "Type FtpWebResponse is not declared".

whether I'm missing any declarations??? if you have any idea what's wrong with my code, please let me know.

Thanks in advance.

[remya1000]

Thanks everyone for your help

in the attached file, function GetFileList there is a line

mess = m_sMes.Split(seperator)

mess is an array of string:

So if the fucntion GetFileList you are reading the file names into the array 'mess'. So you need a new function to get the version, you already have the filenames in a string array. Pass 'mess' array into a function to loop through the array and do some string compair to find the file you need.

   Public Function GetVerFile(ByVal mess() As String)
        Dim VerFileName As String
        For Each strfile In mess
            If strfile.SubString(0, 3) = "Ver" And strfile.Substring(strfile.length - 3, 3) = "txt" Then
                ''do some code here.  If code is here then strfile must start with 'Ver' and end with 'txt'. This is persuming that the names returned in the array have the extension on the end.
            End If
        Next
        Return VerFileName
    End Function

[mrjohn]

I've created a new project and with this import :

Imports System.Net

there is no error there

Dim wtheFTP As FtpWebRequest
        Dim wpWebLocation, wpUsr, wpPsw As String
 
        Cursor.Current = Cursors.WaitCursor
        wtheFTP = CType(System.Net.WebRequest.Create(wpWebLocation), Net.FtpWebRequest)
        wtheFTP.Credentials = New NetworkCredential(wpUsr, wpPsw)
 
        wtheFTP.Method = WebRequestMethods.Ftp.ListDirectory

[remya1000]

Thanks mrjohn for your reply.

as you said i tried that code.

but it says "Type FTPWebREquset is not declared".
also "Type WebRequestMethods is not declared".
also "Type FtpWebResponse is not declared".

is it because i'm using vb.net 2003....

Thanks in advance.