$PBExportHeader$nvo_ftp.sru
forward
global type nvo_ftp from nonvisualobject
end type
end forward

type filetime from structure
	unsignedlong		dwlowdatetime
	unsignedlong		dwhighdatetime
end type

type win32_find_data from structure
	unsignedlong		dwfileattributes
	filetime		ftcreationtime
	filetime		ftlastaccesstime
	filetime		ftlastwritetime
	unsignedlong		nfilesizehigh
	unsignedlong		nfilesizelow
	unsignedlong		dwreserved0
	unsignedlong		dwreserved1
	character		cfilename[260]
	character		calternate[14]
end type

type systemtime from structure
	integer		wYear
	integer		wMonth
	integer		wDayOfWeek
	integer		wDay
	integer		wHour
	integer		wMinute
	integer		wSecond
	integer		wMilliseconds
end type

global type nvo_ftp from nonvisualobject
end type
global nvo_ftp nvo_ftp

type prototypes
FUNCTION ulong InternetGetConnectedState( REF ulong lpdwFlags, ulong dwReserved ) LIBRARY "wininet.dll"
Function Long InternetOpen(String sAgent, Long lAccessType, String sProxyName,String sProxyBypass, Long lFlags)  Library "wininet.dll" Alias For "InternetOpenA;Ansi"
Function Long InternetConnect(Long hInternetSession, String sServerName, Integer nServerPort, String sUsername,String sPassword, Long lService, Long lFlags, Long lContext)  Library "wininet.dll" Alias For "InternetConnectA;Ansi"
Function Integer InternetCloseHandle(Long hInet) Library "wininet.dll" 

Function Boolean FtpGetCurrentDirectory(Long hFtpSession, ref String lpszDirectory, ref Long lpdwCurrentDirectory) Library "wininet.dll"  Alias For "FtpGetCurrentDirectoryA;Ansi"
Function Boolean FtpSetCurrentDirectory(Long hFtpSession, ref String lpszDirectory) Library "wininet.dll" Alias For "FtpSetCurrentDirectoryA;Ansi"
Function Long FtpFindFirstFile(Long hFtpSession, String lpszSearchFile,ref win32_find_data lpFindFileData, Long dwFlags,Long dwContent) Library "wininet.dll" Alias For "FtpFindFirstFileA;Ansi"
Function Long InternetFindNextFile(Long hFind, ref win32_find_data lpvFindData) Library "wininet.dll" Alias For "InternetFindNextFileA;Ansi" 

Function Boolean FtpGetFile(Long hFtpSession, String lpszRemoteFile, String lpszNewFile, Boolean fFailIfExists, Long dwFlagsAndAttributes, Long dwFlags, Long dwContext) Library "wininet.dll" Alias For "FtpGetFileA;Ansi"
Function Boolean FtpPutFile(Long hFtpSession, String lpszLocalFile, String lpszRemoteFile, Long dwFlags, Long dwContext)  Library "wininet.dll" Alias For "FtpPutFileA;Ansi"
Function Boolean FtpDeleteFile(Long hFtpSession, String lpszFileName) Library "wininet.dll" Alias For "FtpDeleteFileA;Ansi"
Function Long FtpOpenFile(Long hFtpSession, String lpszRemoteFile, Long dwFlagsAndAttributes, Long dwFlags, Long dwContext) Library "wininet.dll" Alias For "FtpOpenFileA;Ansi"

FUNCTION ulong FileTimeToSystemTime(ref FILETIME lpFileTime,ref SYSTEMTIME lpSystemTime) LIBRARY "kernel32.dll" alias for "FileTimeToSystemTime;Ansi"

FUNCTION ulong GetCurrentDirectory(ulong nBufferLength,ref string lpBuffer) LIBRARY "kernel32.dll" Alias For "GetCurrentDirectoryA;Ansi"
FUNCTION ulong SetCurrentDirectory(ref string lpPathName) LIBRARY "kernel32.dll" ALIAS FOR "SetCurrentDirectoryA;Ansi"
FUNCTION ulong FindFirstFile(ref string lpFileName,ref WIN32_FIND_DATA lpFindFileData) LIBRARY "kernel32.dll" ALIAS FOR "FindFirstFileA;Ansi"
FUNCTION ulong FindNextFile(ulong hFindFile,ref WIN32_FIND_DATA lpFindFileData) LIBRARY "kernel32.dll" ALIAS FOR "FindNextFileA;Ansi"
FUNCTION ulong GetDriveType(ref string nDrive) LIBRARY "kernel32.dll" ALIAS FOR "GetDriveTypeA;Ansi"
FUNCTION ulong DeleteFile(ref string lpFileName) LIBRARY "kernel32.dll" ALIAS FOR "DeleteFileA;Ansi"
Function ulong ShellExecute(ulong hwnd,ref string lpOperation,ref string lpFile,ref string lpParameters,ref string lpDirectory,ulong nShowCmd) LIBRARY "shell32.dll" ALIAS FOR "ShellExecuteA;Ansi"

end prototypes

type variables
Private:
Long il_dwflags = 1      //传输方式1为ASSIC方式，2为二进制方式
Boolean ib_overfile = False   //是否覆盖己存在的文件
Long il_handle = 0       //是否连接上网络 0 不成功
Long il_netconn = 0     //连接上FTP的句柄 0 不成功
Long il_findfile = 0        //是否找到第一个文件
Long il_localfindfile = 0   //是否找到本地的第一个文件
String is_servername
String is_username
String is_password
Integer ii_port

end variables

forward prototypes
public function long of_internetopen ()
public function long uf_ftpconnect (string as_servername, string as_username, string as_password, integer ai_port)
public function boolean uf_ftpgetfile (string as_remotefile, string as_newfile)
public function boolean of_ftpconnect ()
public function boolean uf_ftpputfile (string as_localfile, string as_remotefile)
public function boolean uf_ftpdeletefile (string as_remotefile)
public function string uf_ftpfindfirstfile (string as_filemask)
public function boolean uf_ftpsetcurrentdir (string as_currentdir)
public function boolean of_internetclose ()
public function boolean uf_internetclose ()
public function string uf_ftpfindnextfile ()
public function string uf_ftpgetcurrentdir ()
public function string uf_cutstring (string as_string, string as_posstring, integer ai_pos)
public function string of_markfileinfo (win32_find_data astr_data)
public function datetime of_filetime2systemtime (filetime astr_filetime)
public function string uf_getcurrentdir ()
public function string uf_findfirstfile (string as_filemask)
public function string uf_findnextfile ()
public function string uf_remotefilelist (string as_filemask)
public function long of_internetopen ()
public function long uf_ftpconnect (string as_servername, string as_username, string as_password, integer ai_port)
public function boolean uf_ftpgetfile (string as_remotefile, string as_newfile)
public function boolean of_ftpconnect ()
public function boolean uf_ftpputfile (string as_localfile, string as_remotefile)
public function boolean uf_ftpdeletefile (string as_remotefile)
public function string uf_ftpfindfirstfile (string as_filemask)
public function boolean uf_ftpsetcurrentdir (string as_currentdir)
public function boolean of_internetclose ()
public function boolean uf_internetclose ()
public function string uf_ftpfindnextfile ()
public function string uf_ftpgetcurrentdir ()
public function string uf_cutstring (string as_string, string as_posstring, integer ai_pos)
public function string of_markfileinfo (win32_find_data astr_data)
public function datetime of_filetime2systemtime (filetime astr_filetime)
public function string uf_getcurrentdir ()
public function string uf_findfirstfile (string as_filemask)
public function string uf_findnextfile ()
public function string uf_remotefilelist (string as_filemask)
public function string uf_localfilelist (string as_filemask)
public function boolean uf_setcurrentdir (string as_currentdir)
public subroutine uf_resetremotefind ()
public subroutine uf_resetlocalfind ()
public function integer uf_getdrivetype (string as_diskpath)
public function string uf_readini (string as_filename, string as_section, string as_key, string as_default)
public subroutine uf_overfile (boolean ab_flag)
public subroutine uf_sendmode (string as_mode)
public function boolean uf_actionfile (unsignedlong aul_hwnd, string as_filename)
public function boolean uf_deletefile (string as_filename)
public function integer uf_internetconnect ()
end prototypes

public function long of_internetopen ();String ls_proxyname,ls_proxypass
Long ll_handle

SetNull(ls_proxyname)
SetNull(ls_proxypass)
ll_handle = InternetOpen("FTP Control",1,ls_proxyname,ls_proxypass,0)
If ll_handle = 0 Then
	MessageBox('提示','不能打开Ftp控制。')
	Return 0
End If
Return ll_handle

end function

public function long uf_ftpconnect (string as_servername, string as_username, string as_password, integer ai_port);il_handle = of_internetopen()
If il_handle = 0 Then Return 0
il_netconn = InternetConnect(il_handle,as_servername,ai_port,as_username,as_password,1,0,0) 
If il_netconn = 0 Then
	of_internetclose()
	MessageBox('提示','不能连接主机 '+as_servername+' 。')
	Return 0
End If
is_servername = as_servername
is_username = as_username
is_password = as_password
ii_port = ai_port
Return il_netconn

end function

public function boolean uf_ftpgetfile (string as_remotefile, string as_newfile);If Not of_ftpconnect() Then Return False

Boolean lb_ok,lb_notover
lb_notover = Not ib_overfile

lb_ok = FtpGetFile(il_netconn,as_remotefile,as_newfile,lb_notover,0,il_dwflags,0)
IF lb_ok = False Then
//	MessageBox('提示','下载文件'+as_remotefile+'时出错。')
	Return False
End If
Return True

end function

public function boolean of_ftpconnect ();If il_netconn = 0 Then
	MessageBox('提示','请先连接FTP服务器。')
	Return False
End If
Return True

end function

public function boolean uf_ftpputfile (string as_localfile, string as_remotefile);If Not of_ftpconnect() Then Return False

Boolean lb_ok
lb_ok = FtpPutFile(il_netconn,as_localfile,as_remotefile,il_dwflags,0) 
IF lb_ok = False Then
//	MessageBox('提示','上传文件'+as_localfile+'时出错。')
	Return False
End If

Return True
end function

public function boolean uf_ftpdeletefile (string as_remotefile);If Not of_ftpconnect() Then Return False

Boolean lb_ok
lb_ok = FtpDeleteFile(il_netconn,as_remotefile)
IF lb_ok = False Then
//	MessageBox('提示','删除远程文件'+as_remotefile+'时出错。')
	Return False
End If
Return True

end function

public function string uf_ftpfindfirstfile (string as_filemask);//====================================================================
// Function - uf_ftpfindfirstfile for nvo_ftp
//--------------------------------------------------------------------
// 描述: 寻找符合的第一个文件名
//--------------------------------------------------------------------
// 参数:	
//
//	string as_filemask
//		<描述> 需寻找的文件名，可用通配符*或?
//--------------------------------------------------------------------
// 返回值:	(STRING) 文件名
//--------------------------------------------------------------------
// 编制:	BAOYF		日期: 2002.10.09 15:09
//====================================================================
If Not of_ftpconnect() Then Return '?'
If il_findfile <> 0 Then Return '?'

String ls_filename = "?"
win32_find_data lstr_data

lstr_data.cfilename = Space(260)
lstr_data.calternate = Space(14)

il_findfile = FtpFindFirstFile(il_netconn,as_filemask,lstr_data,0,0)
If il_findfile <> 0 Then
	ls_filename = of_markfileinfo(lstr_data)
End If
Return ls_filename

end function

public function boolean uf_ftpsetcurrentdir (string as_currentdir);If Not of_ftpconnect() Then Return False

Boolean lb_ok

lb_ok = FtpSetCurrentDirectory(il_netconn,as_currentdir)
If lb_ok Then Return True

//MessageBox("提示","设置远程目录错误。")
Return False

end function

public function boolean of_internetclose ();//====================================================================
// Function - of_internetclose for nvo_ftp
//--------------------------------------------------------------------
// 描述: 关闭ftp连接与网络连接
//--------------------------------------------------------------------
// 参数:	无
//
//	<数据类型> <名称>
//		<描述> 
//	<数据类型> <名称>
//		<描述> 
//--------------------------------------------------------------------
// 返回值:	(BOOLEAN) True成功   False不成功
//--------------------------------------------------------------------
// 编制:	BAOYF		日期: 2002.10.09 15:06
//====================================================================
Long ll_ok

ll_ok = InternetCloseHandle(il_netconn)
If ll_ok = 0 Then
	Return False
End If
il_netconn = 0
il_findfile = 0
il_localfindfile = 0
ll_ok = InternetCloseHandle(il_handle)
If ll_ok = 0 Then
	Return False
End If
il_handle = 0
Return True

end function

public function boolean uf_internetclose ();Return of_internetclose()

end function

public function string uf_ftpfindnextfile ();If il_findfile = 0 Then
	MessageBox("提示","不能确定文件的位置。")
	Return "?"
End If

Long ll_ok
String ls_filename = "?"
win32_find_data lstr_data

lstr_data.cfilename = Space(260)
lstr_data.calternate = Space(14)

ll_ok = InternetFindNextFile(il_findfile,lstr_data)
If ll_ok <> 0 Then
	ls_filename = of_markfileinfo(lstr_data)
End If
Return ls_filename

end function

public function string uf_ftpgetcurrentdir ();If Not of_ftpconnect() Then Return "?"

String ls_dir
Long ll_len
Boolean lb_ok

ls_dir = Space(250)
ll_len = 250

lb_ok = FtpGetCurrentDirectory(il_netconn,ls_dir,ll_len)
If lb_ok Then
	Return Left(ls_dir,ll_len)
End If
MessageBox("提示","取远程目录错误。")
Return "?"

end function

public function string uf_cutstring (string as_string, string as_posstring, integer ai_pos);//剪取一串字符串中按as_posstring分开的第ai_pos段字符串
/*例如：
ls_str = "abc||bst||9usdf8||klsfj12||9886"
ls_pos = "||"
li_pos = 3
则uf_cutstring(ls_str,ls_pos,li_pos) = "9usdf8"
*/
integer li_pos,li_poslen
integer li_i,li_sumi
string ls_return
ls_return = ""
li_poslen = len(as_posstring)
li_sumi = ai_pos - 1
for li_i = 1 to li_sumi
	li_pos = pos(as_string,as_posstring)
	if li_pos = 0 then goto l_return
	as_string = mid(as_string,li_pos + li_poslen)
next
li_pos = pos(as_string,as_posstring)
if li_pos = 0 then
	ls_return = as_string
else
	ls_return = mid(as_string,1,li_pos - 1)
end if
return ls_return

l_return:
return ls_return

end function

public function string of_markfileinfo (win32_find_data astr_data);String ls_fileinfo
DateTime ldt_filetime

ldt_filetime = of_filetime2systemtime(astr_data.ftlastwritetime)
ls_fileinfo = Trim(astr_data.cfilename)

Choose Case astr_data.dwfileattributes
	Case 16,17,18,20,21,22,23,48,49,50,52,53,2066
		ls_fileinfo = ls_fileinfo + '?' + '-1'           //目录
	Case Else
		ls_fileinfo = ls_fileinfo + '?' + String(astr_data.nfilesizelow)
End Choose
ls_fileinfo = ls_fileinfo + '?' + String(ldt_filetime,'yyyy.mm.dd hh:mm:ss')

Return ls_fileinfo

end function

public function datetime of_filetime2systemtime (filetime astr_filetime);String ls_date,ls_time
DateTime ldt_datetime
systemtime lstr_systemtime

FileTimeToSystemTime(astr_filetime,lstr_systemtime)

ls_date = String(lstr_systemtime.wyear)+'-'+String(lstr_systemtime.wmonth)+'-'+String(lstr_systemtime.wday)
ls_time = String(lstr_systemtime.whour)+':'+String(lstr_systemtime.wminute)+':'+String(lstr_systemtime.wsecond)

ldt_datetime = Datetime(Date(ls_date),Time(ls_time))

Return ldt_datetime

end function

public function string uf_getcurrentdir ();String ls_dirstring
uLong ll_len,ll_ok

ls_dirstring = Space(256)
ll_len = 256
ll_ok = GetCurrentDirectory(ll_len,ls_dirstring)
If ll_ok <> 0 Then
	ls_dirstring = Trim(ls_dirstring)
	Return ls_dirstring
End If
Return "?"

end function

public function string uf_findfirstfile (string as_filemask);String ls_filename = "?"
win32_find_data lstr_data

lstr_data.cfilename = Space(260)
lstr_data.calternate = Space(14)

il_localfindfile = FindFirstFile(as_filemask,lstr_data)
If il_localfindfile <> 0 Then
	ls_filename = of_markfileinfo(lstr_data)
End If
Return ls_filename

end function

public function string uf_findnextfile ();If il_localfindfile = 0 Then
	MessageBox("提示","不能确定本地文件的位置。")
	Return "?"
End If

Long ll_ok
String ls_filename = "?"
win32_find_data lstr_data

lstr_data.cfilename = Space(260)
lstr_data.calternate = Space(14)

ll_ok = FindNextFile(il_localfindfile,lstr_data)
If ll_ok <> 0 Then
	ls_filename = of_markfileinfo(lstr_data)
End If
Return ls_filename

end function

public function string uf_remotefilelist (string as_filemask);If il_findfile = 0 Then
	Return uf_ftpfindfirstfile(as_filemask)
End If
Return uf_ftpfindnextfile()

end function

public function string uf_localfilelist (string as_filemask);If il_localfindfile = 0 Then
	Return uf_findfirstfile(as_filemask)
End If
Return uf_findnextfile()

end function

public function boolean uf_setcurrentdir (string as_currentdir);Long ll_ok

ll_ok = SetCurrentDirectory(as_currentdir)
If ll_ok = 0 Then Return False
Return True

end function

public subroutine uf_resetremotefind ();il_findfile = 0

end subroutine

public subroutine uf_resetlocalfind ();il_localfindfile = 0

end subroutine

public function integer uf_getdrivetype (string as_diskpath);//Return :
//0 指定设备不可用
//1 指定目录不存在
//2 可移动设备DRIVE_REMOVABLE
//3 DRIVE_FIXED
//4 DRIVE_REMOTE
//5 DRIVE_CDROM
//6 虚拟设备 DRIVE_RAMDISK
//其它不存在

Return GetDriveType(as_diskpath)

end function

public function string uf_readini (string as_filename, string as_section, string as_key, string as_default);//读取ini文件中的信息，若不存在此值则新增一个值
//参数：as_filename  INI文件名
//		as_section  段
//		as_key  键
//		as_default  默认值
//返回：读取的值

Integer li_fileno
String ls_string

If FileExists(as_filename) = False Then
	li_fileno = FileOpen(as_filename,LineMode!,Write!,LockWrite!,Append!)
	If li_fileno <= 0 Then
		MessageBox('提示','文件不能被创建，请与管理员联系。')
		Return ''
	End If
	FileClose(li_fileno)
End If
ls_string = ProfileString (as_filename,as_section,as_key,'Bsoft_Value')
If ls_string = 'Bsoft_Value' Then
	SetProfileString(as_filename,as_section,as_key,as_default)
	ls_string = as_default
End If
Return ls_string

end function

public subroutine uf_overfile (boolean ab_flag);ib_overfile = ab_flag

end subroutine

public subroutine uf_sendmode (string as_mode);String ls_mode
ls_mode = Upper(as_mode)
If ls_mode = 'BIN' Then
	il_dwflags = 2
Else
	il_dwflags = 1
End If

end subroutine

public function boolean uf_actionfile (unsignedlong aul_hwnd, string as_filename);String str_null,str_filename
uLong ll_ok

SetNull ( str_null )
ll_ok = ShellExecute(aul_hwnd, str_null , as_filename , str_null, str_null, 1 )
If ll_ok = 0 Then Return False
Return True

end function

public function boolean uf_deletefile (string as_filename);//删除本地文件

Long ll_ok

ll_ok = DeleteFile(as_filename)
If ll_ok = 0 Then Return False
Return True

end function

public function integer uf_internetconnect ();uLong lul_connection

lul_connection = 7
Return InternetGetConnectedState( lul_connection, 0 )
//= 0  //不通   
//= 1  //拨号连通   
//= 2  //网络连通   
//= 4  //proxy连通

end function

on nvo_ftp.create
TriggerEvent( this, "constructor" )
end on

on nvo_ftp.destroy
TriggerEvent( this, "destructor" )
end on