分享ASP防SQL注入的两种函数代码
发布时间:2023-07-11 14:54:05 所属栏目:Asp教程 来源:
导读: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
ParaValu
’--- 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
ParaValu
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 用SafeRequest(ParaName,ParaType)代替request.form("")和request..querystring("") ********************************************************************************************************* ------------------------------------------------------------------------------------------------------------------------------------------- ********************************************************************************************************* <% dim sql_injdataFunction 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 用SafeRequest(ParaName,ParaType)代替request.form("")和request..querystring("") ********************************************************************************************************* ------------------------------------------------------------------------------------------------------------------------------------------- ********************************************************************************************************* <% dim sql_injdata sql_injdata="’|and|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char|declare" sql_injHint=replace(sql_injdata,"|"," ") sql_injHint=replace(sql_injHint,"’","’") sql_inj=split(sql_injdata,"|") if request.querystring<>"" then for each getData in request.querystring for i=0 to ubound(sql_inj) if instr(lcase(request.querystring(getData)),sql_inj(i))>0 then hint="alert(’为了保证用户的信息安全,请不要使用非法注入字符。如下字符为非法的: @sql_injHint@’);" hint=replace(hint,"@sql_injHint@",sql_injHint) response.write "<script language=javascript>" response.write hint response.write "history.back()" response.write "</script>" response.end end if next next end if if request.form<>"" then for each getData in request.querystring for i=0 to ubound(sql_inj) if instr(lcase(request.form(getData)),sql_inj(i))>0 then hint="alert(’为了保证用户的信息安全,请不要使用非法注入字符。如下字符为非法的: @sql_injHint@’);" hint=replace(hint,"@sql_injHint@",sql_injHint) response.write "<script language=javascript>" response.write hint response.write "history.back()" response.write "</script>" response.end end if next next end if %>将此段代码形成一个文件 (如:defanj.asp),将所有要用到数据库的文件头部加入<!--#include file=defanj.asp--> sql_injdata="’|and|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char|declare" sql_injHint=replace(sql_injdata,"|"," ") sql_injHint=replace(sql_injHint,"’","’") sql_inj=split(sql_injdata,"|") if request.querystring<>"" then for each getData in request.querystring for i=0 to ubound(sql_inj) if instr(lcase(request.querystring(getData)),sql_inj(i))>0 then hint="alert(’为了保证用户的信息安全,请不要使用非法注入字符。如下字符为非法的: @sql_injHint@’);" hint=replace(hint,"@sql_injHint@",sql_injHint) response.write "<script language=javascript>" response.write hint response.write "history.back()" response.write "</script>" response.end end if next next end if if request.form<>"" then for each getData in request.querystring for i=0 to ubound(sql_inj) if instr(lcase(request.form(getData)),sql_inj(i))>0 then hint="alert(’为了保证用户的信息安全,请不要使用非法注入字符。如下字符为非法的: @sql_injHint@’);" hint=replace(hint,"@sql_injHint@",sql_injHint) response.write "<script language=javascript>" response.write hint response.write "history.back()" response.write "</script>" response.end end if next next end if %>将此段代码形成一个文件 (如:defanj.asp),将所有要用到数据库的文件头部加入<!--#include file=defanj.asp--> (编辑:聊城站长网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
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