Lisong's Blog » ASP

ASP常用自定义函数--IsValidEmail()

木公 — Tue, 17 Feb 2009 05:19:02 +0000

'=============================================================
'检查Email是否合法
'=============================================================
Public Function IsValidEmail(email)
Dim names, name, i, c
IsValidEmail = True
names = Split(email, "@")
If UBound(names) <> 1 Then
   IsValidEmail = False
   Exit Function
End If
For Each name In names
   If Len(name) < = 0 Then
 IsValidEmail = False
 Exit Function
  End If
  For i = 1 To Len(name)
 c = Lcase(Mid(name, i, 1))
 If InStr("abcdefghijklmnopqrstuvwxyz_-.", c) <= 0 and not IsNumeric(c) Then
   IsValidEmail = False
   Exit Function
 End If
 Next
 If Left(name, 1) = "." or Right(name, 1) = "." Then
  IsValidEmail = False
  Exit Function
  End If
Next
If InStr(names(1), ".") <= 0 Then
   IsValidEmail = False
   Exit Function
End If
i = Len(names(1)) - InStrRev(names(1), ".")
If i <> 2 and i <> 3 Then
   IsValidEmail = False
   Exit Function
End If
If InStr(email, "..") > 0 Then
   IsValidEmail = False
End If
End Function

'说明: 当出现恶意提交时,返回False
'示例: If IsValidEmail("lackyking#gmail.com")= False Then Response.Write "False"

ASP常用函数-GetLocalIP/获取真实客户端IP

木公 — Mon, 02 Feb 2009 06:20:32 +0000

'=============================================================
'获取真实的客户端IP
'=============================================================
Function GetLocalIP()
  Dim strIPAddr
  If Request.ServerVariables("HTTP_X_FORWARDED_FOR") = "" or InStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"), "unknown") > 0 Then
    strIPAddr = Request.ServerVariables("REMOTE_ADDR")
  ElseIf InStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"), ",") > 0 Then
    strIPAddr = Mid(Request.ServerVariables("HTTP_X_FORWARDED_FOR"), 1, InStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"), ",")-1)
  ElseIf InStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"), ";") > 0 Then
    strIPAddr = Mid(Request.ServerVariables("HTTP_X_FORWARDED_FOR"), 1, InStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"), ";")-1)
  Else
    strIPAddr = Request.ServerVariables("HTTP_X_FORWARDED_FOR")
  End If
  GetLocalIP = Trim(Mid(strIPAddr,1,30))
End Function

Response.Write GetLocalIP()

ASP常用自定义函数--CutStr

木公 — Wed, 07 Jan 2009 02:44:10 +0000

Function CutStr(byVal Str,byVal StrLen)
	Dim l,t,c,i
	l=Len(str)
	t=0
	For i=1 To l
		c=AscW(Mid(str,i,1))
		If c&lt;0 Or c>255 Then t=t+2 Else t=t+1
		IF t>=StrLen Then
			CutStr=left(Str,i)&"..."
			Exit For
		Else
			CutStr=Str
		End If
	Next
End Function

CutStr("ASP常用自定义函数--CutStr",5)
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ASP常用自定义函数--ShowMsg

木公 — Wed, 07 Jan 2009 02:29:27 +0000

Sub ShowMsg(byval msg,byval url)
  Response.Write("")
  IF url="" Then
    Response.Write("")
  Else
    Response.Write("")
  End IF
  Response.End
End Sub

用法：Call ShowMsg("User name is wrong!","") '返回前一页
Call ShowMsg("User name is wrong!","index.asp") '跳转到index.asp

ASP获取当前页面地址栏URL函数

木公 — Wed, 29 Oct 2008 05:51:57 +0000

Function GetURL() Dim Get_HOST : Get_HOST=Request.ServerVariables("HTTP_HOST") Dim Get_URL : Get_URL=Request.ServerVariables("URL") Dim Get_String : Get_String=Request.ServerVariables("QUERY_STRING") GetURL="Http://"&Get_HOST&Get_URL&"?"&Get_String End Function

Response.Write GetURL