ASP过滤SQL非法字符并格式化html代码，不错的功能函数集

<%

'过滤SQL非法字符并格式化html代码

function Replace_Text(fString)

if isnull(fString) then

Replace_Text=""

exit function

else

fString=trim(fString)

fString=replace(fString,"'","''")

fString=replace(fString,";","；")

fString=replace(fString,"--","—")

fString=server.htmlencode(fString)

Replace_Text=fString

end if 

end function

'会员发布的各种信息过滤

'Function Replace_Text(fString)

'If Not IsNull(fString) Then

'fString = trim(fString)

'fString = replace(fString, ";", "；")     '分号过滤

'fString = replace(fString, "--", "——") '--过滤

'fString = replace(fString, "%20", "")    '特殊字符过滤

'fString = replace(fString, "==", "")     '==过滤

'fString = replace(fString, ">", ">")

'fString = replace(fString, "<", "<")

'fString = Replace(fString, CHR(32), " ")   ' 

'fString = Replace(fString, CHR(9), " ")    ' 

'fString = Replace(fString, CHR(34), """)

'fString = Replace(fString, CHR(39), "'") '单引号过滤

'fString = Replace(fString, CHR(13), "")

'fString = Replace(fString, CHR(10) & CHR(10), "
 ")

'fString = Replace(fString, CHR(10), "
 ")

'Replace_Text = fString

'End If

'End Function

'过滤SQL非法字符

Function checkStr(Chkstr)

dim Str:Str=Chkstr

if isnull(Str) then

   checkStr = ""

   exit Function

else

   Str=replace(Str,"'","")

   Str=replace(Str,";","")

   Str=replace(Str,"--","")

   checkStr=Str

end if

End Function

'检测传递的参数是否为数字型

Function Chkrequest(Para)

Chkrequest=False

If Not (IsNull(Para) Or Trim(Para)="" Or Not IsNumeric(Para)) Then

    Chkrequest=True

End If

End Function

'检测传递的参数是否为日期型

Function Chkrequestdate(Para)

Chkrequestdate=False

If Not (IsNull(Para) Or Trim(Para)="" Or Not IsDate(Para)) Then

    Chkrequestdate=True

End If

End Function

'得到当前页面的地址 

Function GetUrl() 

On Error Resume Next 

Dim strTemp 

If LCase(Request.ServerVariables("HTTPS")) = "off" Then 

strTemp = "http://" 

Else 

strTemp = "https://" 

End If 

strTemp = strTemp & CheckStr(Request.ServerVariables("SERVER_NAME")) 

If Request.ServerVariables("SERVER_PORT") <> 80 Then strTemp = strTemp & ":" & CheckStr(Request.ServerVariables("SERVER_PORT")) 

strTemp = strTemp & CheckStr(Request.ServerVariables("URL")) 

If Trim(Request.QueryString) <> "" Then strTemp = strTemp & "?" & CheckStr(Trim(Request.QueryString)) 

GetUrl = strTemp  

End Function 

'Function CheckReferer()   '检查用户是否在浏览器里输入了本页的地址

'     Dim sReferer, Icheck

'     CheckReferer = True

'     sReferer = Request.ServerVariables("HTTP_REFERER")

'     ServerIP = Request.ServerVariables("LOCAL_ADDR")

'     Icheck = InStr(sReferer, "ServerIP")

'     If Icheck = 0 Then

'     CheckReferer = False

'     End If

'End Function

'日期格式化

Function FormatDate(DT,tp)

dim Y,M,D

Y=Year(DT)

M=month(DT)

D=Day(DT)

if M<10 then M="0"&M

if D<10 then D="0"&D

select case tp

case 1 FormatDate=Y&"年"&M&"月"&D&"日"

case 2 FormatDate=Y&"-"&M&"-"&D

end select

End Function

'不允许外部提交数据的选择

Function ChkPost()

     dim HTTP_REFERER,SERVER_NAME

dim server_v1,server_v2

chkpost=false

     SERVER_NAME=CheckStr(Request.ServerVariables("SERVER_NAME"))

HTTP_REFERER=CheckStr(Request.ServerVariables("HTTP_REFERER"))

server_v1=Cstr(HTTP_REFERER)

server_v2=Cstr(SERVER_NAME)

if mid(server_v1,8,len(server_v2))<>server_v2 then

   chkpost=false

else

   chkpost=true

end if

End Function

'构造上传图片文件名随机数

function MakedownName()

dim fname

fname = now()

fname = replace(fname,"-","")

fname = replace(fname," ","") 

fname = replace(fname,":","")

fname = replace(fname,"PM","")

fname = replace(fname,"AM","")

fname = replace(fname,"上午","")

fname = replace(fname,"下午","")

fname = int(fname) + int((10-1+1)*Rnd + 1)

MakedownName=fname

end function

'Email检测

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

'Jmail邮件发送

Function SendJmail(Email,Topic,MailBody)

Dim JMail

on error resume next

Set JMail = Server.CreateObject("JMail.SMTPMail")

JMail.LazySend             = true

JMail.silent             = true

JMail.Charset             = "gb2312"

JMail.ContentType       = "text/html"

JMail.Sender             = "wemaster@alibaba.info" '我们网站自己的邮箱

JMail.ReplyTo             = "wemaster@alibaba.info" '我们网站自己的邮箱

JMail.SenderName       = "阿里爸爸邮件发送"

JMail.Subject             = Topic

JMail.SimpleLayout       = true

JMail.Body             = MailBody

JMail.Priority             = 3

JMail.AddRecipient Email

JMail.AddHeader "Originating-IP", GBL_IPAddress

If JMail.Execute() = false Then

   SendJmail = 0

Else

   SendJmail = 1

End If

JMail.Close

Set JMail = Nothing

End Function

'分页

Function listPages(LinkFile) 

    if not (rs.eof and rs.bof) then

gopage=currentpage

totalpage=n

blockPage=Int((gopage-1)/10)*10+1

' if instr(linkfile,"?page=")>0 or instr(linkfile,"&page=")>0 then

' pos=instr(linkfile,"page=")-2

' linkfile=left(linkfile,pos)

' end if

If LCase(Request.ServerVariables("HTTPS")) = "off" Then 

     strTemp = "http://" 

     Else 

     strTemp = "https://" 

     End If 

     strTemp = strTemp & CheckStr(Request.ServerVariables("SERVER_NAME")) 

     If Request.ServerVariables("SERVER_PORT") <> 80 Then strTemp = strTemp & ":" & CheckStr(Request.ServerVariables("SERVER_PORT")) 

     strTemp = strTemp & CheckStr(Request.ServerVariables("URL"))

     lenstrTemp=len(strTemp)+1 

if instr(left(linkfile,lenstrTemp),"?")>0 then 

if blockPage = 1 Then

   Response.Write "【←前10页 "

Else

   Response.Write("【←前10页 ")

End If

    i=1

    Do Until i > 10 or blockPage > n

     If blockPage=int(gopage) Then

   Response.Write("["&blockPage&"]")

Else

   Response.Write(" ["&blockPage&"] ")

     End If

     blockPage=blockPage+1

     i = i + 1

     Loop

if blockPage > totalpage Then

   Response.Write " 后10页→】"

Else

   Response.Write(" 后10页→】")

End If 

response.write" 直接到第 "

response.write""

     for i=1 to totalpage

     response.write""&i&""

     next

     response.write""

     response.write" 页

"

else

if blockPage = 1 Then

   Response.Write "【←前10页 "

Else

   Response.Write("【←前10页 ")

End If

    i=1

    Do Until i > 10 or blockPage > n

     If blockPage=int(gopage) Then

   Response.Write("["&blockPage&"]")

Else

   Response.Write(" ["&blockPage&"] ")

     End If

     blockPage=blockPage+1

     i = i + 1

     Loop

if blockPage > totalpage Then

   Response.Write " 后10页→】"

Else

   Response.Write(" 后10页→】")

End If 

response.write" 直接到第 "

response.write""

     for i=1 to totalpage

     response.write""&i&""

     next

     response.write""

     response.write" 页

"

End If

Startinfo=((gopage-1)*msg_per_page)+1

Endinfo=gopage*msg_per_page

if Endinfo>totalrec then Endinfo=totalrec

   Response.Write("  共 "&totalrec&" 条信息 当前显示第 "&Startinfo&" - "&Endinfo&" 条 每页 "&msg_per_page&" 条信息 共 "&n&" 页")

end if

End Function

'分页2

Function listPages2(LinkFile) 

    if not (rs.eof and rs.bof) then

gopage=currentpage

totalpage=n

blockPage=Int((gopage-1)/10)*10+1

If LCase(Request.ServerVariables("HTTPS")) = "off" Then 

     strTemp = "http://" 

     Else 

     strTemp = "https://" 

     End If 

     strTemp = strTemp & CheckStr(Request.ServerVariables("SERVER_NAME")) 

     If Request.ServerVariables("SERVER_PORT") <> 80 Then strTemp = strTemp & ":" & CheckStr(Request.ServerVariables("SERVER_PORT")) 

     strTemp = strTemp & CheckStr(Request.ServerVariables("URL"))

     lenstrTemp=len(strTemp)+1 

if instr(left(linkfile,lenstrTemp),"?")>0 then 

if blockPage = 1 Then

   Response.Write "前10页 "

Else

   Response.Write("前10页 ")

End If

    i=1

    Do Until i > 10 or blockPage > n

     If blockPage=int(gopage) Then

   Response.Write(""&blockPage&"")

Else

   Response.Write(" "&blockPage&" ")

     End If

     blockPage=blockPage+1

     i = i + 1

     Loop

if blockPage > totalpage Then

   Response.Write " 后10页"

Else

   Response.Write(" 后10页")

End If 

response.write" 直接到第 "

response.write""

     for i=1 to totalpage

     response.write""&i&""

     next

     response.write""

     response.write" 页

"

else

if blockPage = 1 Then

   Response.Write "【←前10页 "

Else

   Response.Write("【←前10页 ")

End If

    i=1

    Do Until i > 10 or blockPage > n

     If blockPage=int(gopage) Then

   Response.Write("["&blockPage&"]")

Else

   Response.Write(" ["&blockPage&"] ")

     End If

     blockPage=blockPage+1

     i = i + 1

     Loop

if blockPage > totalpage Then

   Response.Write " 后10页→】"

Else

   Response.Write(" 后10页→】")

End If 

response.write" 直接到第 "

response.write""

     for i=1 to totalpage

     response.write""&i&""

     next

     response.write""

     response.write" 页

"

End If

Startinfo=((gopage-1)*msg_per_page)+1

Endinfo=gopage*msg_per_page

if Endinfo>totalrec then Endinfo=totalrec

   Response.Write("  共 "&totalrec&" 条信息 当前显示第 "&Startinfo&" - "&Endinfo&" 条 每页 "&msg_per_page&" 条信息 共 "&n&" 页")

end if

End Function

'判断文件类型是否合格

Function CheckFileExt(FileExt)

Dim ForumUpload,i

ForumUpload="gif,jpg,bmp,jpeg,png"

ForumUpload=Split(ForumUpload,",")

CheckFileExt=False

For i=0 to UBound(ForumUpload)

   If LCase(FileExt)=Lcase(Trim(ForumUpload(i))) Then

    CheckFileExt=True

    Exit Function

   End If

Next

End Function

'格式后缀

Function FixName(UpFileExt)

If IsEmpty(UpFileExt) Then Exit Function

FixName = Lcase(UpFileExt)

FixName = Replace(FixName,Chr(0),"")

FixName = Replace(FixName,".","")

FixName = Replace(FixName,"asp","")

FixName = Replace(FixName,"asa","")

FixName = Replace(FixName,"aspx","")

FixName = Replace(FixName,"cer","")

FixName = Replace(FixName,"cdx","")

FixName = Replace(FixName,"htr","")

End Function

'文件Content-Type判断

Function CheckFileType(FileType)

CheckFileType = False

If Left(Cstr(Lcase(Trim(FileType))),6)="image/" Then CheckFileType = True

End Function

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