VB 文件传输函数(版本自动更新用 MY_FILE_FTP.cls)

Wesley13
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Option Explicit

Private Declare Function InternetOpen Lib "wininet.dll" Alias "InternetOpenA" _
(ByVal sAgent As String, ByVal LAccessType As Long, ByVal sProxyName As String, _
ByVal SProxyBypass As String, ByVal lFlags As Long) As Long

Private Declare Function InternetConnect Lib "wininet.dll" Alias "InternetConnectA" _
(ByVal hInternetSession As Long, ByVal sServerName As String, _
ByVal nServerPort As Integer, ByVal sUsername As String, _
ByVal sPassword As String, ByVal lService As Long, _
ByVal lFlags As Long, ByVal lContext As Long) As Long

Private Declare Function FtpGetFile Lib "wininet.dll" Alias "FtpGetFileA" _
(ByVal hFtpSession As Long, ByVal lpszRemoteFile As String, _
ByVal lpszNewFile As String, ByVal fFailIfExists As Boolean, _
ByVal dwFlagsAndAttributes As Long, ByVal dwFlags As Long, _
ByVal dwContext As Long) As Boolean

Private Declare Function FtpPutFile Lib "wininet.dll" Alias "FtpPutFileA" _
(ByVal hFtpSession As Long, ByVal lpszLocalFile As String, _
ByVal lpszRemoteFile As String, ByVal dwFlags As Long, _
ByVal dwContext As Long) As Boolean

Private Declare Function FtpDeleteFile Lib "wininet.dll" Alias "FtpDeleteFileA" _
  (ByVal hFtpSession As Long, ByVal lpszFileName As String) As Boolean

Private Declare Function FtpRenameFile Lib "wininet.dll" Alias "FtpRenameFileA" _
  (ByVal hFtpSession As Long, ByVal lpszExsiting As String, ByVal lpszNew As String) As Boolean

Private Declare Function InternetCloseHandle Lib "wininet.dll" (ByVal hInet As Long) As Integer

Private Declare Function FtpFindFirstFile Lib "wininet.dll" Alias "FtpFindFirstFileA" _
   (ByVal hFtpSession As Long, ByVal lpszSearchFile As String, _
    lpFindFileData As WIN32_FIND_DATA, ByVal dwFlags As Long, _
    ByVal dwContent As Long) As Long

Private Declare Function InternetFindNextFile Lib "wininet.dll" Alias "InternetFindNextFileA" _
(ByVal hFind As Long, lpvFndData As WIN32_FIND_DATA) As Long

Const INTERNET_OPEN_TYPE_PRECONFIG = 0

Private Type FILETIME
  dwLowDateTime As Long
  dwHighDateTime As Long
End Type
Private Type WIN32_FIND_DATA
   dwFilAttributes As Long
   ftCreationTime As FILETIME
   ftLastAccessTime As FILETIME
   ftLastWriteTime As FILETIME
   nFileSizeHigh As Long
   nFileSizeLow As Long
   dwReserved0 As Long
   dwReserved1 As Long
   cFileName As String * 260
   cAlternate As String * 14
End Type

Private Declare Function GetOpenFileName Lib "comdlg32.dll" Alias _
        "GetOpenFileNameA" (pOpenfilename As OPENFILENAME) As Long

Private Type OPENFILENAME
     lStructSize As Long
     hwndOwner As Long
     hInstance As Long
     lpstrFilter As String
     lpstrCustomFilter As String
     nMaxCustFilter As Long
     nFilterIndex As Long
     lpstrFile As String
     nMaxFile As Long
     lpstrFileTitle As String
     nMaxFileTitle As Long
     lpstrInitialDir As String
     lpstrTitle As String
     flags As Long
     nFileOffset As Integer
     nFileExtension As Integer
     lpstrDefExt As String
     lCustData As Long
     lpfnHook As Long
     lpTemplateName As String
End Type

Public Function F_ftp_getfile(hostip As Variant, username As Variant, PASSWORD As Variant, remotefile As Variant, ftpfile As Variant) As String
    F_ftp_getfile = ""
    Dim lnginet
    Dim lnginetconn
    Dim blnRC
    Dim lpFileData As WIN32_FIND_DATA
    lnginet = InternetOpen(vbNullString, INTERNET_OPEN_TYPE_PRECONFIG, vbNullString, vbNullString, 0&)
    If lnginet Then
       lnginetconn = InternetConnect(lnginet, hostip, 0, username, PASSWORD, 1, 0, 0)
      If lnginetconn Then
           blnRC = FtpGetFile(lnginetconn, remotefile, ftpfile, 0, 0, 1, 0)
          If blnRC Then
             F_ftp_getfile = "1"
          Else
             F_ftp_getfile = "0"
          End If
       Else
             F_ftp_getfile = "0"
      End If
    Else
    End If
    InternetCloseHandle lnginetconn
    InternetCloseHandle lnginet
End Function

Public Function F_ftp_putfile(hostip As Variant, username As Variant, PASSWORD As Variant, remotefile As Variant, ftpfile As Variant) As String
    F_ftp_putfile = ""
    Dim lnginet
    Dim lnginetconn
    Dim blnRC
    Dim aa As Long
    Dim lpFileData As WIN32_FIND_DATA
    lpFileData.cFileName = String(260, 0)
    lnginet = InternetOpen(vbNullString, INTERNET_OPEN_TYPE_PRECONFIG, vbNullString, vbNullString, 0&)
    If lnginet Then
        lnginetconn = InternetConnect(lnginet, hostip, 0, username, PASSWORD, 1, 0, 0)
        If lnginetconn Then
            aa = FtpFindFirstFile(lnginetconn, remotefile, lpFileData, 0, 0)
            blnRC = FtpPutFile(lnginetconn, ftpfile, remotefile, 1, 0)
            If blnRC Then
                F_ftp_putfile = "1"
            Else
                F_ftp_putfile = "0"
            End If
        Else
            F_ftp_putfile = "0"
        End If
    Else
    End If
    InternetCloseHandle lnginetconn
    InternetCloseHandle lnginet
End Function


Public Function F_ftp_getMfile(hostip As Variant, username As Variant, PASSWORD As Variant, remotefile As Variant, ftpfile As Variant) As String
    F_ftp_getMfile = ""
    Dim lnginet
    Dim lnginetconn
    Dim blnRC
    lnginet = InternetOpen(vbNullString, INTERNET_OPEN_TYPE_PRECONFIG, vbNullString, vbNullString, 0&)
    If lnginet Then
       lnginetconn = InternetConnect(lnginet, hostip, 0, username, PASSWORD, 1, 0, 0)
      If lnginetconn Then
           blnRC = FtpGetFile(lnginetconn, remotefile, ftpfile, 0, 0, 1, 0)
          If blnRC Then
             F_ftp_getMfile = "1"
          Else
             F_ftp_getMfile = "0"
          End If
       Else
             F_ftp_getMfile = "0"
      End If
    Else
    End If
    InternetCloseHandle lnginetconn
    InternetCloseHandle lnginet
End Function
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