diff options
author | Christian Pointner <equinox@helsinki.at> | 2010-01-12 13:59:22 (GMT) |
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committer | Christian Pointner <equinox@helsinki.at> | 2010-01-12 13:59:22 (GMT) |
commit | 8385776d0e7998168f3f0b23a37aececcd5fd3c5 (patch) | |
tree | 4601798a3ef3dc57347c9feb8f6b6da975ccce09 /mode-watch.lua | |
parent | 09a4632f7ae58f11d73dcbbbb7e69b397a40b9f6 (diff) |
moved from mode-leds to mode-watch
mode-watch sends email on change
Diffstat (limited to 'mode-watch.lua')
-rw-r--r-- | mode-watch.lua | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/mode-watch.lua b/mode-watch.lua new file mode 100644 index 0000000..26ef870 --- /dev/null +++ b/mode-watch.lua @@ -0,0 +1,126 @@ +-- +-- rhctl +-- +-- Copyright (C) 2009 Christian Pointner <equinox@spreadspace.org> +-- +-- This file is part of rhctl. +-- +-- rhctl 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 +-- any later version. +-- +-- rhctl 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 rhctl. If not, see <http://www.gnu.org/licenses/>. +-- + +socket = require("socket") + +function set_master_led() + os.execute("/sbin/led.sh set master") + os.execute("/sbin/led.sh clear standby") +end + +function set_standby_led() + os.execute("/sbin/led.sh clear master") + os.execute("/sbin/led.sh set standby") +end + +function clear_leds() + os.execute("/sbin/led.sh clear master") + os.execute("/sbin/led.sh clear standby") +end + +function send_mail(address, subject, bodytext) + local fp = assert(io.popen("/usr/sbin/mini_sendmail -smailrelay -fnoreply@helsinki.at " .. address, "w")) + + fp:write("Subject: " .. subject .. "\n") + fp:write("To: " .. address .. "\n") + fp:write("\n") + fp:write(bodytext) + fp:write("\n") + fp:close() +end + +current_mode = "master" + +function process_cmd(message) + log.printf(log.DEBUG, "received message: '%s'", message) + + local new_mode = nil + local exps = { "Current Mode: (%a+)", "new Mode: (%a+)" } + for _, exp in ipairs(exps) do + new_mode = string.match(message, exp) + if(new_mode) then + new_mode = string.lower(new_mode) + if(new_mode == "master") then + set_master_led() + break + else + if(new_mode == "standby") then + set_standby_led() + break + end + end + end + end + + if(new_mode and new_mode ~= current_mode) then + log.printf(log.NOTICE, "mode is now " .. new_mode) + send_mail("logs@helsinki.at", "RHCTL mode changed to " .. new_mode, + "RHCTL just switched from " .. current_mode .. " to " .. new_mode) + current_mode = new_mode + end + + return 0 +end + +function main_loop(opt) + log.printf(log.NOTICE, "main_loop started") + local sig = signal.init() + local cmdfd = cmd.init() + + cmd.send_string("listen mode"); + cmd.send_string("status"); + + clear_leds() + + local return_value = 0 + while return_value == 0 do + local readable, _, err = socket.select({ sig , cmdfd }, nil) + if(err) then + log.printf(log.ERROR, "select returned with error: %s", err) + return_value = -1 + else + for _, input in ipairs(readable) do + if(input == sig) then + return_value = signal.handle() + if(return_value == 1) then break end + else + if(input == cmdfd) then + return_value = cmd.recv_data(process_cmd) + if(return_value == 2) then + log.printf(log.ERROR, "connection to server lost, exitting") + return_value = -1 + end + if(return_value ~= 0) then break end + else + log.printf(log.ERROR, "select returned invalid handle??") + return_value = -1 + break; + end + end + end + end + end + + clear_leds() + + signal.stop() + return return_value +end |