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module(..., package.seeall)
require("fs")
require("procps")
require("getopts")
require("format")
require("daemoncontrol")
require("validator")
local configfile = "/etc/conf.d/syslog"
local config = {}
local function get_version()
local cmd = "/sbin/apk_version -v -s busybox | cut -d ' ' -f 1"
local cmd_output = io.popen( cmd )
local cmd_output_result = cmd_output:read("*a") or ""
cmd_output:close()
return cmd_output_result
end
local function getloglevels()
local loglevels = {}
for i=1,8 do
table.insert(loglevels,i)
end
return loglevels
end
-- ################################################################################
-- PUBLIC FUNCTIONS
function startstop_service ( self, action )
local cmd = action.value
local cmdresult,cmdaction,cmdmessage,cmderror = daemoncontrol.daemoncontrol("syslog", cmd)
action.descr=cmdmessage
action.errtxt=cmderror
return action
end
function getstatus()
local opts = getconfig()
local status = {}
status.version = cfe({ name = "version",
label="Program version",
value=get_version(),
})
status.status = cfe({ name="status",
label="Program status",
value=procps.pidof("syslogd"),
})
if (opts["remotelogging"]) and not ((opts["remotelogging"]["value"] ~= "") and not (opts["localandnetworklog"]["value"])) then
status.logfile = cfe({ name="logfile",
label="Locally logging to",
value=opts["logfile"]["value"],
})
end
if (opts["SYSLOGD_OPTS"]) and (opts["SYSLOGD_OPTS"]["-R"]) and (opts["SYSLOGD_OPTS"]["-R"] ~= "") then
status.remote = cfe({ name="remotelogging",
label="Remote logging to",
value=opts["SYSLOGD_OPTS"]["-R"],
})
end
return status
end
function get_filedetails()
local filedetails = {}
local path = configfile
filedetails.details = {path=path, size="0",mtime=""}
filedetails.content = ""
if (fs.is_file(path)) then
filedetails.details = fs.stat(path)
filedetails.content = fs.read_file(path)
end
return filedetails
end
function getconfig()
local config = {}
if (fs.is_file(configfile)) then
configcontent = getopts.getoptsfromfile(configfile) or config
if (type(config["SYSLOGD_OPTS"]) == "string") then
config["SYSLOGD_OPTS"] = {}
end
else
config["configfile"] = "Config file '".. configfile .. "' is missing!"
end
-- Next section selects which configurations we should show to the user
config["logfile"] = cfe({
name="logfile",
label = "Log to given file",
value = configcontent["SYSLOGD_OPTS"]["-O"] or "/var/log/messages",
})
config["loglevel"] = cfe({
name="loglevel",
label = "Set local log level",
value = tonumber(configcontent["SYSLOGD_OPTS"]["-l"]) or 8,
type = "select",
option = getloglevels(),
descr = "1=Quiet, ... , " .. table.maxn(getloglevels()) .. "=Debug",
})
config["smallerlogs"] = cfe({
name="smallerlogs",
label = "Smaller logging output",
checked = configcontent["SYSLOGD_OPTS"]["-S"],
value = "smallerlogs",
type = "checkbox",
})
config["maxsize"] = cfe ({
name="maxsize",
label = "Max size (KB) before rotate",
descr = "Default=200KB, 0=off",
value = configcontent["SYSLOGD_OPTS"]["-s"],
})
config["numrotate"] = cfe ({ name="numrotate",
label = "Number of rotated logs to keep",
descr = "Default=1, max=99, 0=purge",
value = configcontent["SYSLOGD_OPTS"]["-b"],
})
config["localandnetworklog"] = cfe ({
name="localandnetworklog",
label = "Log locally and via network",
checked = configcontent["SYSLOGD_OPTS"]["-L"],
value = "localandnetworklog",
type = "checkbox",
descr = "Default is network only if -R",
})
config["remotelogging"] = cfe ({
name="remotelogging",
label = "Log to IP or hostname on PORT",
descr = "host[:PORT] - Default PORT=514/UDP",
value = configcontent["SYSLOGD_OPTS"]["-R"],
})
-- Next section is to print errormessages when configs are wrong
if (configcontent["SYSLOGD_OPTS"]["-l"]) and
((tonumber(configcontent["SYSLOGD_OPTS"]["-l"]) == nil) or (tonumber(configcontent["SYSLOGD_OPTS"]["-l"]) > 8)) then
config["loglevel"]["errtxt"] = "Log value is out of range. Please select one of the above."
end
if (configcontent["SYSLOGD_OPTS"]["-L"] ~= nil) and (configcontent["SYSLOGD_OPTS"]["-R"] == "") then
config["localandnetworklog"]["errtxt"] = "Logging to local and network is possible unless you define a host for remote logging."
end
return config
end
service_control = function ( self, srvcmd )
local srvcmd = string.lower(srvcmd)
local retval = ""
local line = ""
if (srvcmd == "start") or (srvcmd == "stop") or (srvcmd == "restart") then
local file = io.popen( "PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin /etc/init.d/syslog " .. srvcmd .. " 2>&1" )
if file ~= nil then
line = file:read( "*l" )
while line ~= nil do
retval = retval .. "\n" .. line
line = file:read( "*l" )
end
file:close()
end
else
retval = "Unknown command!"
end
return retval
end
function setconfigs(self,variable,parameter,value)
local variabletranslator = ({
logfile = "-O",
loglevel = "-l",
smallerlogs = "-S",
maxsize = "-s",
numrotate = "-b",
localandnetworklog = "-L",
remotelogging = "-R",
})
parameter = variabletranslator[parameter]
--TODO: Validate so that user cant add values with '-' (could cause major breakage next time you do getopts)
--If file is missing... then create a new one
-- if not (fs.is_file(configfile)) then fs.write_file(configfile, "SYSLOGD_OPTS=\"\"\nKLOGD_OPTS=\"\"") end
if not (variable) or not (parameter) then return nil, "Usage setconfigs(variable,parameter,value)" end
if not (string.find(parameter, "-%a$")) then return nil, "Parameter must be formated '-a' (where a is one upper/lowercase letter [a-z])" end
if (value) and (parameter == "-O") then
local value, errors = validator.is_valid_filename(value, "/var/log" )
if (errors) then
return cfe({
name="setconfig",
errtxt= errors,
})
end
end
--[[
if (value) and (parameter == "-R") then
local port = string.match(value, ":(.-)$")
local host = string.match(value, "^(.-):?")
if (port) and not (validator.is_port(port)) then
errors["-R"] = "Port:'" .. tostring(port) .. "' is not a valid portnumber!"
end
errors["-R"] = "Port:'" .. tostring(port) .. "' Host:" .. tostring(host)
end
--]]
-- Set specific variables (and their values)
if (value) and ((parameter == "-S") or (parameter == "-L")) then value = "" end
local retval, errorscmd = getopts.setoptsinfile(configfile,variable,parameter,value)
-- if (errorscmd) and (#errorscmd > 0) then
local errorscmd = cfe({ name="variable", errtxt=errorscmd, })
-- end
return true, e
end
function update_filecontent (self, modifications)
local path = configfile
local file_result,err = fs.write_file(path, format.dostounix(modifications))
return file_result, err
end
-- ################################################################################
-- OTHER FUNCTIONS
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