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--[[ $%BEGINLICENSE%$
Copyright (C) 2007-2008 MySQL AB, 2008 Sun Microsystems, Inc
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
$%ENDLICENSE%$ --]]
--[[
--]]
function connect_server()
print("--> a client really wants to talk to a server")
end
function read_handshake( auth )
print("<-- let's send him some information about us")
print(" mysqld-version: " .. auth.mysqld_version)
print(" thread-id : " .. auth.thread_id)
print(" scramble-buf : " .. string.format("%q", auth.scramble))
print(" server-addr : " .. auth.server_addr)
print(" client-addr : " .. auth.client_addr)
-- lets deny clients from !127.0.0.1
if not auth.client_addr:match("^127.0.0.1:") then
proxy.response.type = proxy.MYSQLD_PACKET_ERR
proxy.response.errmsg = "only local connects are allowed"
print("we don't like this client");
return proxy.PROXY_SEND_RESULT
end
end
function read_auth( auth )
print("--> there, look, the client is responding to the server auth packet")
print(" username : " .. auth.username)
print(" password : " .. string.format("%q", auth.password))
print(" default_db : " .. auth.default_db)
if auth.username == "evil" then
proxy.response.type = proxy.MYSQLD_PACKET_ERR
proxy.response.errmsg = "evil logins are not allowed"
return proxy.PROXY_SEND_RESULT
end
end
function read_auth_result( auth )
local state = auth.packet:byte()
if state == proxy.MYSQLD_PACKET_OK then
print("<-- auth ok");
elseif state == proxy.MYSQLD_PACKET_ERR then
print("<-- auth failed");
else
print("<-- auth ... don't know: " .. string.format("%q", auth.packet));
end
end
function read_query( packet )
print("--> someone sent us a query")
if packet:byte() == proxy.COM_QUERY then
print(" query: " .. packet:sub(2))
if packet:sub(2) == "SELECT 1" then
proxy.queries:append(1, packet)
end
end
end
function read_query_result( inj )
print("<-- ... ok, this only gets called when read_query() told us")
proxy.response = {
type = proxy.MYSQLD_PACKET_RAW,
packets = {
"\255" ..
"\255\004" .. -- errno
"#" ..
"12S23" ..
"raw, raw, raw"
}
}
return proxy.PROXY_SEND_RESULT
end
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