ASP上两个防止SQL注入式攻击Function

''==========================
''过滤提交表单中的SQL
''==========================
function ForSqlForm()
dim fqys,errc,i,items
dim nothis(18)
nothis(0)="net user"

nothis(1)="xp_cmdshell"

nothis(2)="/add"

nothis(3)="exec%20master.dbo.xp_cmdshell"

nothis(4)="net localgroup administrators"

nothis(5)="select"

nothis(6)="count"

nothis(7)="asc"

nothis(8)="char"

nothis(9)="mid"

nothis(10)="''"

nothis(11)=":"

nothis(12)=""""

nothis(13)="insert"

nothis(14)="delete"

nothis(15)="drop"

nothis(16)="truncate"

nothis(17)="from"

nothis(18)="%"

''nothis(19)="@"

errc=false

for i= 0 to ubound(nothis)
for each items in request.Form
if instr(request.Form(items),nothis(i))<>0 then
response.write("

")
response.write("你所填写的信息:" & server.HTMLEncode(request.Form(items)) & "
含非法字符:" & nothis(i))
response.write("

")
response.write("对不起,你所填写的信息含非法字符！返回")
response.End()
end if
next
next
end function
''==========================
''过滤查询中的SQL
''==========================
function ForSqlInjection()
dim fqys,errc,i
dim nothis(19)
fqys = request.ServerVariables("QUERY_STRING")
nothis(0)="net user"

nothis(1)="xp_cmdshell"

nothis(2)="/add"

nothis(3)="exec%20master.dbo.xp_cmdshell"

nothis(4)="net localgroup administrators"

nothis(5)="select"

nothis(6)="count"

nothis(7)="asc"

nothis(8)="char"

nothis(9)="mid"

nothis(10)="''"

nothis(11)=":"

nothis(12)=""""

nothis(13)="insert"

nothis(14)="delete"

nothis(15)="drop"

nothis(16)="truncate"

nothis(17)="from"

nothis(18)="%"

nothis(19)="@"

errc=false

for i= 0 to ubound(nothis)

if instr(FQYs,nothis(i))<>0 then

errc=true

end if

next

if errc then
response.write "查询信息含非法字符！返回"
response.end

end if

end function

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