A script to prevent external data submissions [reprint]

Script | When data is submitted, someone may modify the script to submit it locally, so there is a security commit issue, so it should be required to commit from a server-broken path, and no other address submission is invalid:
<%
Server_v1=cstr (Request.ServerVariables ("Http_referer"))
Server_v2=cstr (Request.ServerVariables ("SERVER_NAME"))
If Mid (Server_v1,8,len (SERVER_V2)) <>server_v2 Then
Response.Write "<br><br><center><table border=1 cellpadding=20 bordercolor=black bgcolor=# Eeeeee width=450> "
Response.Write "<tr><td style= ' font:9pt Verdana ' >"
Response.Write "You submitted the wrong path, prohibit the submission of data from outside the site please do not mess with this parameter!" "
Response.Write "</td></tr></table></center>"
Response.End
End If
%>
Transfer from classic Forum