防止垃圾留言

nuet

有什么好的办法
几天发了几万条垃圾留言！！

很明显

验证码

仙鹤回来了

关闭注册

nuet

9万多条垃圾啊！！

很明显

进数据库批量删除

nuet

只能这样啊！！

redsnow

加码是个办法

nuet

3M的数据变成了600M

cnx

http://an9.name/weblog
推荐你试用一下PM2.4，什么插件都不用，就可以很好的防止垃圾留言了。
设置日志过期关闭留言，增加黑名单。
这样就可以了。

nuet

以下是numcode.asp的内容 复制内容到剪贴板 代码:<%@CodePage="65001"%>
<%
Call Com_CreatValidCode("GetCode")

Sub Com_CreatValidCode(pSN)
' 禁止缓存
Response.Expires = -9999
Response.AddHeader "Pragma","no-cache"
Response.AddHeader "cache-ctrol","no-cache"
'Response.ContentType = "Image/BMP"

Randomize

Dim i, ii, iii

Const cOdds = 4 ' 杂点出现的机率
Const cAmount = 13 ' 文字数量
Const cCode = "0123456789+=?"

' 颜色的数据(字符，背景)
Dim vColorData(1),vColorRandom(10)
'vColorData(0) = ChrB(Int(Rnd*155)+100) & ChrB(Int(Rnd*155)+100) & ChrB(Int(Rnd*155)+100) ' 蓝0，绿0，红0（黑色）
vColorRandom(0)=ChrB(150) & ChrB(0) & ChrB(0)
vColorRandom(1)=ChrB(0) & ChrB(150) & ChrB(0)
vColorRandom(2)=ChrB(0) & ChrB(0) & ChrB(150)
vColorRandom(3)=ChrB(0) & ChrB(50) & ChrB(150)
vColorRandom(4)=ChrB(150) & ChrB(50) & ChrB(0)
vColorRandom(5)=ChrB(150) & ChrB(0) & ChrB(150)
vColorRandom(6)=ChrB(150) & ChrB(100) & ChrB(10)
vColorRandom(7)=ChrB(150) & ChrB(40) & ChrB(120)
vColorRandom(8)=ChrB(150) & ChrB(0) & ChrB(250)
vColorRandom(9)=ChrB(100) & ChrB(100) & ChrB(100)
vColorRandom(10)=ChrB(50) & ChrB(50) & ChrB(50)
vColorData(0) = vColorRandom(0)
vColorData(1) = ChrB(250) & ChrB(250) & ChrB(255) '背景色 蓝250，绿236，红211（浅蓝色）
' 随机产生字符
Dim vCode(6),vCodes,vCodeColors(6)
For i = 0 To 6
vCodeColors(i)=vColorRandom(Int(Rnd * 10))
Next

vCode(0) = Int(Rnd*8)+1
vCode(1) = Int(Rnd*9)
vCode(2) = 10
vCode(3) = Int(Rnd*8)+1
vCode(4) = Int(Rnd*9)
vCode(5) = 11
vCode(6) = 12
Session(pSN) = vCode(0)*10+vCode(1)+vCode(3)*10+vCode(4) '记录入Session
' 字符的数据
Dim vNumberData(12)
vNumberData(0) = "1110000111110111101111011110111101001011110100101111010010111101001011110111101111011110111110000111"
vNumberData(1) = "1111011111110001111111110111111111011111111101111111110111111111011111111101111111110111111100000111"
vNumberData(2) = "1110000111110111101111011110111111111011111111011111111011111111011111111011111111011110111100000011"
vNumberData(3) = "1110000111110111101111011110111111110111111100111111111101111111111011110111101111011110111110000111"
vNumberData(4) = "1111101111111110111111110011111110101111110110111111011011111100000011111110111111111011111111000011"
vNumberData(5) = "1100000011110111111111011111111101000111110011101111111110111111111011110111101111011110111110000111"
vNumberData(6) = "1111000111111011101111011111111101111111110100011111001110111101111011110111101111011110111110000111"
vNumberData(7) = "1100000011110111011111011101111111101111111110111111110111111111011111111101111111110111111111011111"
vNumberData(8) = "1110000111110111101111011110111101111011111000011111101101111101111011110111101111011110111110000111"
vNumberData(9) = "1110001111110111011111011110111101111011110111001111100010111111111011111111101111011101111110001111"
vNumberData(10) = "1111111111111101111111110111111111011111100000001111110111111111011111111101111111110111111111111111"
vNumberData(11) = "1111111111111111111111111111111000000001111111111111111111111000000001111111111111111111111111111111"
vNumberData(12) = "1110000111110011001111011110111111111011111111001111111001111111001111111111111111110011111111001111"

' 输出图像文件头
Response.BinaryWrite ChrB(66) & ChrB(77) & ChrB(166) & ChrB(8) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) &_
ChrB(0) & ChrB(0) & ChrB(54) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(40) & ChrB(0) &_
ChrB(0) & ChrB(0) & ChrB(72) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(10) & ChrB(0) &_
ChrB(0) & ChrB(0) & ChrB(1) & ChrB(0)

' 输出图像信息头
Response.BinaryWrite ChrB(24) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(112) & ChrB(8) &_
ChrB(0) & ChrB(0) & ChrB(18) & ChrB(11) & ChrB(0) & ChrB(0) & ChrB(18) & ChrB(11) &_
ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) &_
ChrB(0) & ChrB(0)
For i = 9 To 0 Step -1 ' 历经所有行
For ii = 0 To 6 ' 历经所有字
For iii = 1 To 10 ' 历经所有像素
' 逐行、逐字、逐像素地输出图像数据
vColorData(0)=vCodeColors(ii)
If Rnd * 99 + 1 < cOdds Then ' 随机生成杂点
Response.BinaryWrite vColorData(0)
Else
Response.BinaryWrite vColorData(Mid(vNumberData(vCode(ii)), i * 10 + iii, 1))
End If
Next
Next
Response.BinaryWrite vColorData(1) & vColorData(1)
Next
End Sub

%>
调用时的代码 复制内容到剪贴板 代码:验证码:<img id="img_1" src="numcode.asp" border="0" alt="点击刷新验证码">
提交验证方法1： 复制内容到剪贴板 代码:if request("act")="check" then
if cstr(session("GetCode"))<>cstr(request("checkcode")) then
response.write "验证码错误"
response.end
end if
end if
提交验证方法2(本人常用的)： 复制内容到剪贴板 代码:<%if cstr(session("GetCode"))<>cstr(request("yzm1")) then%>
<script>alert('验证码不一致,请重新输入！');history.go(-1);</script>
<%response.End()
end if%>