防SQL注入 - learning java

防SQL注入

<%
function sqlcheck(Str,errtype)
if Instr(LCase(Str),"select ") > 0 or Instr(LCase(Str),"insert ") > 0 or Instr(LCase(Str),"delete ") > 0 or Instr(LCase(Str),"delete from ") > 0 or Instr(LCase(Str),"count(") > 0 or Instr(LCase(Str),"drop table") > 0 or Instr(LCase(Str),"update ") > 0 or Instr(LCase(Str),"truncate ") > 0 or Instr(LCase(Str),"asc(") > 0 or Instr(LCase(Str),"mid(") > 0 or Instr(LCase(Str),"char(") > 0 or Instr(LCase(Str),"xp_cmdshell") > 0 or Instr(LCase(Str),"exec master") > 0 or Instr(LCase(Str),"net localgroup administrators") > 0 or Instr(LCase(Str),"and ") > 0 or Instr(LCase(Str),"net user") > 0 or Instr(LCase(Str),"or ") > 0 then
Response.write("<script language=javascript>" & vbcrlf & "window.location.href ='ShowError.asp?errtype=" & errtype & "'" & vbcrlf & "</script>")
Response.End
end if
Str=Replace(Str,"_","")     '过滤SQL注入_
Str=Replace(Str,"*","")     '过滤SQL注入*
Str=Replace(Str," ","")     '过滤SQL注入空格
Str=Replace(Str,chr(34),"")   '过滤SQL注入"
Str=Replace(Str,chr(39),"")            '过滤SQL注入'
Str=Replace(Str,chr(91),"")            '过滤SQL注入[
Str=Replace(Str,chr(93),"")            '过滤SQL注入]
Str=Replace(Str,chr(37),"")            '过滤SQL注入%
Str=Replace(Str,chr(58),"")            '过滤SQL注入:
Str=Replace(Str,chr(59),"")            '过滤SQL注入;
Str=Replace(Str,chr(43),"")            '过滤SQL注入+
Str=Replace(Str,"{","")            '过滤SQL注入{
Str=Replace(Str,"}","")            '过滤SQL注入}
sqlcheck=Str            '返回经过上面字符替换后的Str
end function
%>

function SafeRequest(ParaName,ParaType)
'--- 传入参数 ---
'ParaName:参数名称-字符型
'ParaType:参数类型-数字型(1表示以上参数是数字，0表示以上参数为字符)

Dim ParaValue
ParaValue=Request(ParaName)
If ParaType=1 then
If not isNumeric(ParaValue) then
Response.write "参数" & ParaName & "必须为数字型！"
Response.end
End if
Else
ParaValue=replace(ParaValue,"'","''")
End if
SafeRequest=ParaValue
End function

Function SafeRequest(ParaValue,ParaType)
       '--- 传入参数 ---
       'ParaName:参数名称-字符型
       'ParaType:参数类型-数字型(1表示以上参数是数字，0表示以上参数为字符)

       'Dim ParaValue
       'ParaValue=Request(ParaName)函数里面是不要加引号
       If ParaType=1 then
              If not isNumeric(ParaValue) then
                   Response.write " 参数" & ParaName & "必须为数字型！"
                     Response.end
              End if
       Else
              ParaValue=replace(ParaValue,"'","")
     ParaValue=replace(ParaValue,";and 1=1","")
     ParaValue=replace(ParaValue,";and 1=2","")
     ParaValue=replace(ParaValue,";and user>0","")
     ParaValue=replace(ParaValue,">","")
     ParaValue=replace(ParaValue,"<","")
     ParaValue=replace(ParaValue,"=","")
     ParaValue=replace(ParaValue,"count","")
     ParaValue=replace(ParaValue,"select","")
     ParaValue=replace(ParaValue,"drop","")
     ParaValue=replace(ParaValue,"delect","")
     ParaValue=replace(ParaValue,"insert","")
     ParaValue=replace(ParaValue,"execute","")
     ParaValue=replace(ParaValue,"update","")
     ParaValue=replace(ParaValue,"mid","")
     ParaValue=replace(ParaValue,"exec","")
     ParaValue=replace(ParaValue,"master","")
     ParaValue=replace(ParaValue,"char","")
     ParaValue=replace(ParaValue,"declare","")
     ParaValue=replace(ParaValue,"*","")
     ParaValue=replace(ParaValue,"%","")
     ParaValue=replace(ParaValue,"chr","")
     ParaValue=replace(ParaValue,"truncate","")
       End if
       SafeRequest=ParaValue
End function
'调用方式
DirID=Request("DirID")'///数据目录名称参数/无则表示全部数据
DirID=SafeRequest(DirID,1)

Dim SQL_inbreakstr
SQL_inbreakstr = "'|or|and|exec|insert|select|delete|update|drop|count|*|%|chr|mid|master|truncate|char|declare"
SQL_inbreak = split(SQL_inbreakstr,"|")
R_Q=Request.QueryString
R_F=Request.Form
IF R_Q<>"" THEN
For i=0 To Ubound(SQL_inbreak)
  IF instr(R_Q,SQL_inbreak(i))>0 THEN
   Response.Write "*****"
                           Response.End
  END IF
Next
End IF

IF R_F<>"" THEN
For i=0 To Ubound(SQL_inbreak)
  IF instr(R_F,SQL_inbreak(i))>0 THEN
   Response.Write "*****"
                           Response.End
  END IF
Next
END IF

<%
'--------版权说明------------------
'SQL通用防注入程序 V2.0 完美版
'本程序由火狐-枫知秋独立开发
'对本程序有任何疑问请联系本人
'QQ:613548 Http://Www.WrSky.Com
'此版本欢迎到转载~~~

'--------定义部份------------------
Dim Fy_Post,Fy_Get,Fy_In,Fy_Inf,Fy_Xh,Fy_db,Fy_dbstr
'自定义需要过滤的字串,用 "枫" 分隔
Fy_In = "'枫;枫and枫exec枫insert枫select枫delete枫update枫count枫*枫%枫chr枫mid枫master枫truncate枫char枫declare"
'----------------------------------
%>

<%
Fy_Inf = split(Fy_In,"枫")
'--------POST部份------------------
If Request.Form<>"" Then
For Each Fy_Post In Request.Form

For Fy_Xh=0 To Ubound(Fy_Inf)
If Instr(LCase(Request.Form(Fy_Post)),Fy_Inf(Fy_Xh))<>0 Then
'--------写入数据库-------头--------
Fy_dbstr="DBQ="+server.mappath("SqlIn.mdb")+";DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)};"
Set Fy_db=Server.CreateObject("ADODB.CONNECTION")
Fy_db.open Fy_dbstr
Fy_db.Execute("insert into SqlIn(Sqlin_IP,SqlIn_Web,SqlIn_FS,SqlIn_CS,SqlIn_SJ) values('"&Request.ServerVariables("REMOTE_ADDR")&"','"&Request.ServerVariables("URL")&"','POST','"&Fy_Post&"','"&replace(Request.Form(Fy_Post),"'","''")&"')")
Fy_db.close
Set Fy_db = Nothing
'--------写入数据库-------尾--------

Next
End If
'----------------------------------

'--------GET部份-------------------
If Request.QueryString<>"" Then
For Each Fy_Get In Request.QueryString

For Fy_Xh=0 To Ubound(Fy_Inf)
If Instr(LCase(Request.QueryString(Fy_Get)),Fy_Inf(Fy_Xh))<>0 Then
''--------写入数据库-------头--------
Fy_dbstr="DBQ="+server.mappath("SqlIn.mdb")+";DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)};"
Set Fy_db=Server.CreateObject("ADODB.CONNECTION")
Fy_db.open Fy_dbstr
Fy_db.Execute("insert into SqlIn(Sqlin_IP,SqlIn_Web,SqlIn_FS,SqlIn_CS,SqlIn_SJ) values('"&Request.ServerVariables("REMOTE_ADDR")&"','"&Request.ServerVariables("URL")&"','GET','"&Fy_Get&"','"&replace(Request.QueryString(Fy_Get),"'","''")&"')")
Fy_db.close
Set Fy_db = Nothing
'--------写入数据库-------尾--------

Response.Write "<Script Language=JavaScript>alert('枫网SQL通用防注入系统提示↓\n\n请不要在参数中包含非法字符尝试注入！\n\nHTTP://WwW.WrSkY.CoM 系统版本:V2.0(ASP)完美版');</Script>"
Response.Write "非法操作！系统做了如下记录↓<br>"
Response.Write "操作ＩＰ："&Request.ServerVariables("REMOTE_ADDR")&"<br>"
Response.Write "操作时间："&Now&"<br>"
Response.Write "操作页面："&Request.ServerVariables("URL")&"<br>"
Response.Write "提交方式：ＧＥＴ<br>"
Response.Write "提交参数："&Fy_Get&"<br>"
Response.Write "提交数据："&Request.QueryString(Fy_Get)
Response.End
End If
Next
Next
End If
'----------------------------------
%>

可以防止所有得sql注入：
Function SafeRequest(ParaName,ParaType)
'--- 防止SQL注入 ---
'ParaName:参数名称-字符型
'ParaType:参数类型-数字型(1表示以上参数是数字，0表示以上参数为字符)
Dim ParaValue
ParaValue=Request(ParaName)
If ParaType=1 then
  If not isNumeric(ParaValue) then
   Response.write "<br><br><br><center><font color=red>参数" & ParaName & "必须为数字型！"
   Response.end
  End if
Else
  ParaValue=replace(ParaValue,"'","''")
End if
SafeRequest=ParaValue
End function
来源：http://www.yesky.com/305/1899305.shtml

posted on 2006-02-05 10:23 my java 阅读(624) 评论(0) 编辑收藏

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