改进的SQL防注入

答案：<%
'ASP防注入之解决方案'特殊页面处理'因为有些页通过流式传递(比如含有文件上传的表单)'如果单一使用穷举Form对象的操作就会出错'所以要把这些页面过滤出来,同时在页面中使用sql("检测的字串")才行'垃圾猪zero@new57.com'http://blog.csdn.net/cfaq
'源码下载http://www.new57.com/softback/sql.rar
 
 
'将本页用include方法放在头部以让所有页都可以调用,比如include在conn.asp里'如果有流式上传的页面请把该页加到表page中,以防form冲突
 
Dim N_no,N_noarray,req_Qs,req_F,N_i,N_dbstr,Conn,N_rs,N_userIP,N_thispageN_userip = Request.ServerVariables("REMOTE_ADDR")N_thispage = LCase(Request.ServerVariables("URL"))
N_no =  "'|;|and|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char|declare" '可以自己修改怀疑是注入操作的字串N_noarray = split(LCase(N_no),"|")
Call DBopen()Call N_check_Qs()Call N_checkPage()Call DBCLose()
'检测当前页是否是特殊页是就调用 N_check_form()sub N_checkPage()
 set N_rs = server.CreateObject("ADODB.RecordSet")  N_rs.open "select * from page where spcpage like '%"&N_thispage&"%'",conn,1,1  if  (N_rs.eof AND N_rs.Bof) then   Call N_check_form()  end if  N_rs.Close() set N_rs = nothing
end sub
 
 
'检测给定字串sub N_sql(agsql) '这里是不记录数据库,如果要改请自己修改 N_check "CUS",req_Qs,"OTHER"end sub
'检测Request.Formsub N_check_form() If Request.Form<>"" Then For Each req_F In Request.Form   N_check req_F,Request.Form(req_F),"POST" Next end ifend sub
'检测Request.QueryStringsub N_check_Qs() If Request.QueryString<>"" Then  For Each req_Qs In Request.QueryString   N_check req_Qs,Request.QueryString(req_Qs),"GET"  Next end ifend sub
'检测sub N_check(ag,agsql,sqltype) For N_i=0 To Ubound(N_noarray)  If Instr(LCase(agsql),N_noarray(N_i))<>0 Then  call N_regsql(ag,agsql,sqltype)  Response.Write "MO"  end if Nextend sub
'记录并停止输出'ag 名称'agsql 内容'sqltype 类型sub N_regsql(ag,agsql,sqltype) if(sqltype<>"OTHER") then  Conn.Execute("insert into SqlIn(Sqlin_IP,SqlIn_Web,SqlIn_FS,SqlIn_CS,SqlIn_SJ) values('"&N_userip&"','"&N_thispage&"','"&sqltype&"','"&ag&"','"&agsql&"')") end if  Response.Write "<Script Language=javascript>alert('请不要在参数中包含非法字符尝试注入！');</Script>"  Response.Write "<span style='font-size:12px'>非法操作！系统做了如下记录↓<br>"  Response.Write "操作ＩＰ："&N_userip&"<br>"  Response.Write "操作时间："&Now&"<br>"  Response.Write "操作页面："&N_thispage&"<br>"  Response.Write "提交方式："&sqltype&"<br>"  Response.Write "提交参数："&ag&"<br>"  Response.Write "提交数据："&agsql&"</span>"     Response.endend sub
Sub DBopen() N_dbstr="DBQ="+server.mappath("Sql.mdb")+";DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)};" Set Conn=Server.CreateObject("ADODB.CONNECTION") Conn.open N_dbstrend SUB
Sub DBCLose() Conn.close Set Conn = NothingEnd sub%>

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