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-- MySQL Proxy script for development/debugging purposes

--

-- Written by Patrick Allaert <patrickallaert@php.net>

-- Copyright © 2009-2011 Libereco Technologies

--

-- 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, either version 3 of the License, or

-- (at your option) any later version.

--

-- 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, see <http://www.gnu.org/licenses/>.

transaction_counter = 0

function read_query( packet )

if packet:byte() ~= proxy.COM_QUERY then

return

end

proxy.queries:append(1, string.char(proxy.COM_QUERY) .. packet:sub(2), {resultset_is_needed = true})

return proxy.PROXY_SEND_QUERY

end

function read_query_result (inj)

local res = assert(inj.resultset)

local error_status = ""

local color = ""

if res.flags.no_good_index_used then

error_status = error_status .. "No good index used!"

color = "\27[33m"

end

if res.flags.no_index_used then

error_status = error_status .. "No index used!"

color = "\27[1;33m"

end

local row_count = 0

if res.affected_rows then

row_count = res.affected_rows

else

local num_cols = string.byte(res.raw, 1)

if num_cols > 0 and num_cols < 255 then

for row in inj.resultset.rows do

row_count = row_count + 1

end

end

end

if res.query_status == proxy.MYSQLD_PACKET_ERR then

error_status = string.format("%q", res.raw:sub(10))

color = "\27[1;31m"

end

local query = string.gsub(string.sub(inj.query, 2), "%s+", " ")

local word = string.upper(string.sub(query,1,6))

if word == "UPDATE" or word == "DELETE" or word == "INSERT" then

color = "\27[35m"

elseif word == "COMMIT" then

transaction_counter = transaction_counter - 1

end

local i = 0

while i < transaction_counter do

io.write(" ")

i = i +1

end

if string.upper(string.sub(query,1,5)) == "BEGIN" then

transaction_counter = transaction_counter + 1

end

print(

string.format(

"%s%s\t%s\t\27[0m%s\27[0m\t%s%fms\27[0m",

color,

query,

error_status,

row_count == 0 and "\27[7;31m<NONE>" or row_count,

inj.response_time > 1e5 and "\27[1;31m" or "\27[32m",

inj.response_time / 1e3

)

)

end