如何去掉asp后台登陆验证码源码?
<%@LANGUAGE=VBScript.Encode%><%OptionExplicitResponse.buffer=trueNumCodeFunctionNumCo...
<%@ LANGUAGE = VBScript.Encode %><%
Option Explicit
Response.buffer=true
NumCode
Function NumCode()
Response.Expires = -1
Response.AddHeader "Pragma","no-cache"
Response.AddHeader "cache-ctrol","no-cache"
On Error Resume Next
Dim zNum,i,j
Dim Ados,Ados1
Randomize timer
zNum = cint(8999*Rnd+1000)
Session("CheckCode") = zNum
Dim zimg(4),NStr
NStr=cstr(zNum)
For i=0 To 3
zimg(i)=cint(mid(NStr,i+1,1))
Next
Dim Pos
Set Ados=Server.CreateObject("Adodb.Stream")
Ados.Mode=3
Ados.Type=1
Ados.Open
Set Ados1=Server.CreateObject("Adodb.Stream")
Ados1.Mode=3
Ados1.Type=1
Ados1.Open
Ados.LoadFromFile(Server.mappath("../image/body.Fix"))
Ados1.write Ados.read(1280)
For i=0 To 3
Ados.Position=(9-zimg(i))*320
Ados1.Position=i*320
Ados1.write ados.read(320)
Next
Ados.LoadFromFile(Server.mappath("../image/head.fix"))
Pos=lenb(Ados.read())
Ados.Position=Pos
For i=0 To 9 Step 1
For j=0 To 3
Ados1.Position=i*32+j*320
Ados.Position=Pos+30*j+i*120
Ados.write ados1.read(30)
Next
Next
Response.ContentType = "image/BMP"
Ados.Position=0
Response.BinaryWrite Ados.read()
Ados.Close:set Ados=nothing
Ados1.Close:set Ados1=nothing
If Err Then Session("CheckCode") = 9999
End Function
%> 展开
Option Explicit
Response.buffer=true
NumCode
Function NumCode()
Response.Expires = -1
Response.AddHeader "Pragma","no-cache"
Response.AddHeader "cache-ctrol","no-cache"
On Error Resume Next
Dim zNum,i,j
Dim Ados,Ados1
Randomize timer
zNum = cint(8999*Rnd+1000)
Session("CheckCode") = zNum
Dim zimg(4),NStr
NStr=cstr(zNum)
For i=0 To 3
zimg(i)=cint(mid(NStr,i+1,1))
Next
Dim Pos
Set Ados=Server.CreateObject("Adodb.Stream")
Ados.Mode=3
Ados.Type=1
Ados.Open
Set Ados1=Server.CreateObject("Adodb.Stream")
Ados1.Mode=3
Ados1.Type=1
Ados1.Open
Ados.LoadFromFile(Server.mappath("../image/body.Fix"))
Ados1.write Ados.read(1280)
For i=0 To 3
Ados.Position=(9-zimg(i))*320
Ados1.Position=i*320
Ados1.write ados.read(320)
Next
Ados.LoadFromFile(Server.mappath("../image/head.fix"))
Pos=lenb(Ados.read())
Ados.Position=Pos
For i=0 To 9 Step 1
For j=0 To 3
Ados1.Position=i*32+j*320
Ados.Position=Pos+30*j+i*120
Ados.write ados1.read(30)
Next
Next
Response.ContentType = "image/BMP"
Ados.Position=0
Response.BinaryWrite Ados.read()
Ados.Close:set Ados=nothing
Ados1.Close:set Ados1=nothing
If Err Then Session("CheckCode") = 9999
End Function
%> 展开
2个回答
展开全部
不在你发的这个地方改,这个只是用来显示验证码,这个文件你改不改都行(这里显示不显示都无所谓,不影响后面的,如果不想看到验证码的话把第四行NumCode注释掉或者去掉)
最主要的找到这个form上面的action=后面指向的位置,比如是<form action="Logincheck.asp"..>这种,就找到logincheck.asp,打开后里面会有一行是将Session("CheckCode") 与取到的前面那个验证码比较的,比如前面可能有类似
code=request.form("code")
.........
if Session("CheckCode")<>code
response.write "验证码错误..."
reponse.end
...
你只需要将Session("CheckCode")那段去掉就行了。
最主要的找到这个form上面的action=后面指向的位置,比如是<form action="Logincheck.asp"..>这种,就找到logincheck.asp,打开后里面会有一行是将Session("CheckCode") 与取到的前面那个验证码比较的,比如前面可能有类似
code=request.form("code")
.........
if Session("CheckCode")<>code
response.write "验证码错误..."
reponse.end
...
你只需要将Session("CheckCode")那段去掉就行了。
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