function send_response()
    ts.client_response.header['Rhost'] = ts.ctx['rhost']
    return 0
end


function do_remap()
    req_host = ts.client_request.header.Host

    if req_host == nil then
        return 0
    end

    ts.ctx['rhost'] = string.reverse(req_host)

    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)

    return 0
end

function upper_transform(data, eos)
    if eos == 1 then
        return string.upper(data)..'S.H.E.\n', eos
    else
        return string.upper(data), eos
    end
end

function send_response()
    ts.client_response.header['SHE'] = ts.ctx['tb']['she']
    return 0
end


function do_remap()
    req_host = ts.client_request.header.Host

    if req_host == nil then
        return 0
    end

    ts.ctx['tb'] = {}
    ts.ctx['tb']['she'] = 'wo ai yu ye hua'

    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
    ts.hook(TS_LUA_RESPONSE_TRANSFORM, upper_transform)

    ts.http.resp_cache_transformed(0)
    ts.http.resp_cache_untransformed(1)
    return 0
end

function send_response()
    ts.client_response.header['Rhost'] = ts.ctx['rhost']
    ts.client_response.header['CStatus'] = ts.ctx['cstatus']
end


function cache_lookup()
    cache_status = ts.http.get_cache_lookup_status()
    ts.ctx['cstatus'] = cache_status
end


function do_remap()
    req_host = ts.client_request.header.Host

    if req_host == nil then
        return 0
    end

    ts.ctx['rhost'] = string.reverse(req_host)

    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
    ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)

    return 0
end

function send_response()
    ts.client_response.header['Now'] = ts.now()
    return 0
end


function do_remap()

    uri = ts.client_request.get_uri()

    pos, len = string.find(uri, '/css/')
    if pos ~= nil then
        ts.http.set_resp(403, "Document access failed :)\n")
        return 0
    end

    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)

    return 0
end

HOSTNAME = ''

function __init__(argtb)

    if (#argtb) < 1 then
        print(argtb[0], 'hostname parameter required!!')
        return -1
    end

    HOSTNAME = argtb[1]
end

function do_remap()
    req_host = ts.client_request.header.Host

    if req_host == nil then
        return 0
    end

    ts.client_request.header['Host'] = HOSTNAME

    return 0
end