有空再注释一下
Option Explicit Private Declare Function GetProcessHeap Lib "kernel32" () As Long Private Declare Function HeapAlloc Lib "kernel32" (ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As Long Private Declare Function HeapFree Lib "kernel32" (ByVal hHeap As Long, ByVal dwFlags As Long, lpMem As Any) As Long Private Const HEAP_ZERO_MEMORY = &H8 Private Const HEAP_GENERATE_EXCEPTIONS = &H4 Private Declare Sub CopyMemory1 Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long) Private Declare Sub CopyMemory2 Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Long, hpvSource As Any, ByVal cbCopy As Long) Private Const MAX_PATH = 260 Private Const NO_ERROR = 0 Private Const FILE_ATTRIBUTE_READONLY = &H1 Private Const FILE_ATTRIBUTE_HIDDEN = &H2 Private Const FILE_ATTRIBUTE_SYSTEM = &H4 Private Const FILE_ATTRIBUTE_DIRECTORY = &H10 Private Const FILE_ATTRIBUTE_ARCHIVE = &H20 Private Const FILE_ATTRIBUTE_NORMAL = &H80 Private Const FILE_ATTRIBUTE_TEMPORARY = &H100 Private Const FILE_ATTRIBUTE_COMPRESSED = &H800 Private Const FILE_ATTRIBUTE_OFFLINE = &H1000 Private Type FILETIME dwLowDateTime As Long dwHighDateTime As Long End Type Private Type WIN32_FIND_DATA dwFileAttributes 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 * MAX_PATH cAlternate As String * 14 End Type Private Const ERROR_NO_MORE_FILES = 18 Private Declare Function InternetFindNextFile Lib "wininet.dll" Alias "InternetFindNextFileA" (ByVal hFind As Long, lpvFindData As WIN32_FIND_DATA) As Long 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 FtpCreateDirectory Lib "wininet.dll" Alias "FtpCreateDirectoryA" (ByVal hFtpSession As Long, ByVal lpszDirectory As String) As Boolean 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 FtpSetCurrentDirectory Lib "wininet.dll" Alias "FtpSetCurrentDirectoryA" (ByVal hFtpSession As Long, ByVal lpszDirectory As String) As Boolean 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 Const INTERNET_OPEN_TYPE_PRECONFIG = 0 Private Const INTERNET_OPEN_TYPE_DIRECT = 1 Private Const INTERNET_OPEN_TYPE_PROXY = 3 Private Const INTERNET_INVALID_PORT_NUMBER = 0 Private Const FTP_TRANSFER_TYPE_ASCII = &H1 Private Const FTP_TRANSFER_TYPE_BINARY = &H1 Private Const INTERNET_FLAG_PASSIVE = &H8000000 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 Const ERROR_INTERNET_EXTENDED_ERROR = 12003 Private Declare Function InternetGetLastResponseInfo Lib "wininet.dll" Alias "InternetGetLastResponseInfoA" (lpdwError As Long, ByVal lpszBuffer As String, lpdwBufferLength As Long) As Boolean Private Const INTERNET_DEFAULT_FTP_PORT = 21 Private Const INTERNET_DEFAULT_GOPHER_PORT = 70 Private Const INTERNET_DEFAULT_HTTP_PORT = 80 Private Const INTERNET_DEFAULT_HTTPS_PORT = 443 Private Const INTERNET_DEFAULT_SOCKS_PORT = 1080 Private Const INTERNET_OPTION_CONNECT_TIMEOUT = 2 Private Const INTERNET_OPTION_RECEIVE_TIMEOUT = 6 Private Const INTERNET_OPTION_SEND_TIMEOUT = 5 Private Const INTERNET_OPTION_USERNAME = 28 Private Const INTERNET_OPTION_PASSWORD = 29 Private Const INTERNET_OPTION_PROXY_USERNAME = 43 Private Const INTERNET_OPTION_PROXY_PASSWORD = 44 Private Const INTERNET_SERVICE_FTP = 1 Private Const INTERNET_SERVICE_GOPHER = 2 Private Const INTERNET_SERVICE_HTTP = 3 Private Declare Function HttpOpenRequest Lib "wininet.dll" Alias "HttpOpenRequestA" (ByVal hHttpSession As Long, ByVal sVerb As String, ByVal sObjectName As String, ByVal sVersion As String, ByVal sReferer As String, ByVal something As Long, ByVal lFlags As Long, ByVal lContext As Long) As Long Private Const INTERNET_FLAG_RELOAD = &H80000000 Private Const INTERNET_FLAG_KEEP_CONNECTION = &H400000 Private Const INTERNET_FLAG_MULTIPART = &H200000 Private Const GENERIC_READ = &H80000000 Private Const GENERIC_WRITE = &H40000000 Private Declare Function HttpSendRequest Lib "wininet.dll" Alias "HttpSendRequestA" (ByVal hHttpRequest As Long, ByVal sHeaders As String, ByVal lHeadersLength As Long, ByVal sOptional As String, ByVal lOptionalLength As Long) As Integer Private Declare Function HttpQueryInfo Lib "wininet.dll" Alias "HttpQueryInfoA" (ByVal hHttpRequest As Long, ByVal lInfoLevel As Long, ByRef sBuffer As Any, ByRef lBufferLength As Long, ByRef lIndex As Long) As Integer Private Const HTTP_QUERY_CONTENT_TYPE = 1 Private Const HTTP_QUERY_CONTENT_LENGTH = 5 Private Const HTTP_QUERY_EXPIRES = 10 Private Const HTTP_QUERY_LAST_MODIFIED = 11 Private Const HTTP_QUERY_PRAGMA = 17 Private Const HTTP_QUERY_VERSION = 18 Private Const HTTP_QUERY_STATUS_CODE = 19 Private Const HTTP_QUERY_STATUS_TEXT = 20 Private Const HTTP_QUERY_RAW_HEADERS = 21 Private Const HTTP_QUERY_RAW_HEADERS_CRLF = 22 Private Const HTTP_QUERY_FORWARDED = 30 Private Const HTTP_QUERY_SERVER = 37 Private Const HTTP_QUERY_USER_AGENT = 39 Private Const HTTP_QUERY_SET_COOKIE = 43 Private Const HTTP_QUERY_REQUEST_METHOD = 45 Private Const HTTP_STATUS_DENIED = 401 Private Const HTTP_STATUS_PROXY_AUTH_REQ = 407 Private Const HTTP_QUERY_FLAG_REQUEST_HEADERS = &H80000000 Private Const HTTP_QUERY_FLAG_NUMBER = &H20000000 Private Declare Function InternetReadFile Lib "wininet.dll" (ByVal hFile As Long, ByVal sBuffer As String, ByVal lNumBytesToRead As Long, lNumberOfBytesRead As Long) As Integer Private Declare Function InternetWriteFile Lib "wininet.dll" (ByVal hFile As Long, ByVal sBuffer As String, ByVal lNumberOfBytesToRead As Long, lNumberOfBytesRead As Long) As Integer Private Declare Function FtpOpenFile Lib "wininet.dll" Alias "FtpOpenFileA" (ByVal hFtpSession As Long, ByVal sFileName As String, ByVal lAccess As Long, ByVal lFlags As Long, ByVal lContext As Long) As Long Private Declare Function FtpDeleteFile Lib "wininet.dll" Alias "FtpDeleteFileA" (ByVal hFtpSession As Long, ByVal lpszFileName As String) As Boolean Private Declare Function InternetSetOption Lib "wininet.dll" Alias "InternetSetOptionA" (ByVal hInternet As Long, ByVal lOption As Long, ByRef sBuffer As Any, ByVal lBufferLength As Long) As Integer Private Declare Function InternetSetOptionStr Lib "wininet.dll" Alias "InternetSetOptionA" (ByVal hInternet As Long, ByVal lOption As Long, ByVal sBuffer As String, ByVal lBufferLength As Long) As Integer Private Declare Function InternetCloseHandle Lib "wininet.dll" (ByVal hInet As Long) As Integer Private Declare Function InternetQueryOption Lib "wininet.dll" Alias "InternetQueryOptionA" (ByVal hInternet As Long, ByVal lOption As Long, ByRef sBuffer As Any, ByRef lBufferLength As Long) As Integer Private Const INTERNET_OPTION_VERSION = 40 Private Type tWinInetDLLVersion lMajorVersion As Long lMinorVersion As Long End Type Private Declare Function HttpAddRequestHeaders Lib "wininet.dll" Alias "HttpAddRequestHeadersA" (ByVal hHttpRequest As Long, ByVal sHeaders As String, ByVal lHeadersLength As Long, ByVal lModifiers As Long) As Integer Private Const HTTP_ADDREQ_FLAG_ADD_IF_NEW = &H10000000 Private Const HTTP_ADDREQ_FLAG_ADD = &H20000000 Private Const HTTP_ADDREQ_FLAG_REPLACE = &H80000000 Private Const scUserAgent = "CMSDreamFTP ActiveX V1.0" Private hConnection As Long Public LocalFile As String Public RemoteFile As String Public ServerName As String Public UserName As String Public Password As String Public Function Connect(Optional m_ServerName As String, _ Optional m_UserName As String, _ Optional m_Password As String) As Boolean Dim hOpen As Long hOpen = InternetOpen(scUserAgent, INTERNET_OPEN_TYPE_DIRECT, vbNullString, vbNullString, 0) If Trim(m_ServerName) <> "" Then ServerName = m_ServerName If Trim(m_UserName) <> "" Then UserName = m_UserName If Trim(m_Password) <> "" Then Password = m_Password hConnection = InternetConnect(hOpen, _ ServerName, _ INTERNET_INVALID_PORT_NUMBER, _ UserName, _ Password, _ INTERNET_SERVICE_FTP, _ INTERNET_FLAG_PASSIVE, _ 0) Connect = CBool(hConnection) If Not Connect Then Err.Raise vbObjectError + 510, "Connect Function", "Connect to server failed:" & Err.Description End Function Public Function DisConnect() As Boolean DisConnect = True If hConnection <> 0 Then hConnection = 0 DisConnect = CBool(InternetCloseHandle(hConnection)) End If End Function Public Function Transfer(Optional v_LocalFile As String, _ Optional v_RemoteFile As String, _ Optional m_ServerName As String, _ Optional m_UserName As String, _ Optional m_Password As String) As Boolean If Trim(v_LocalFile) <> "" Then LocalFile = v_LocalFile If Trim(v_RemoteFile) <> "" Then RemoteFile = v_RemoteFile If Err.Number <> 0 Then Err.Clear On Error Resume Next Dim v_RemotePath As String: v_RemotePath = GetRemoteFolder(RemoteFile) If hConnection = 0 Then If Trim(m_ServerName) <> "" Then ServerName = m_ServerName If Trim(m_UserName) <> "" Then UserName = m_UserName If Trim(m_Password) <> "" Then Password = m_Password Call Connect(ServerName, UserName, Password) End If If v_RemotePath <> "" Then If Right(v_RemotePath, 1) <> "/" Then v_RemotePath = v_RemotePath & "/" Call CreateRemoteFolder(v_RemotePath) End If If Dir(LocalFile) = "" Then Err.Raise vbObjectError + 512, "Transfer Function", "The local file is not exists:" & LocalFile Err.Clear End If Transfer = FtpPutFile(hConnection, LocalFile, RemoteFile, FTP_TRANSFER_TYPE_BINARY, 0) If Err Then Err.Raise vbObjectError + 513, "Transfer Function", "Transfer the file failed:" & Err.Description Err.Clear End If End Function Public Sub CreateRemoteFolder(ByVal RemotePath As String) If Trim(RemotePath) = "" Then Exit Sub On Error Resume Next Dim v_RemotePath As String: v_RemotePath = RemotePath Dim aFolder As String, sPosition As Long Dim i As Long: i = 0 sPosition = InStr(v_RemotePath, "/") aFolder = "" Do While sPosition > 0 And i < 100 sPosition = InStr(v_RemotePath, "/") aFolder = aFolder & Left(v_RemotePath, sPosition) v_RemotePath = Mid(v_RemotePath, sPosition + 1) If Not (aFolder = "/" Or aFolder = "") Then If Not FtpCreateDirectory(hConnection, aFolder) Then Err.Raise vbObjectError + 511, "CreateRemoteFolder Sub", "Create a remote folder failed:" & Err.Description Err.Clear End If End If i = i + 1 Loop End Sub Private Function GetRemoteFolder(ByVal RemoteFilePath As String) As String GetRemoteFolder = RemoteFilePath If Trim(RemoteFilePath) = "" Then Exit Function RemoteFilePath = Replace(RemoteFilePath, "\", "/") If Right(RemoteFilePath, 1) = "/" Then Exit Function GetRemoteFolder = Left(RemoteFilePath, InStrRev(RemoteFilePath, "/")) End Function Private Sub Class_Initialize() End Sub Private Sub Class_Terminate() DisConnect End Sub
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