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module(..., package.seeall)
require("modelfunctions")
require("fs")
require("format")
require("validator")
local configfile = "/etc/conf.d/syslog"
local processinitname = "syslog"
local packagename = "busybox"
local processname = "syslogd"
local function getloglevels()
local loglevels = {}
for i=1,8 do
table.insert(loglevels,tostring(i))
end
return loglevels
end
local writeconfig = function (config)
-- Set variables
local variable = "SYSLOGD_OPTS"
local variabletranslator = {
logfile = "-O",
loglevel = "-l",
smallerlogs = "-S",
maxsize = "-s",
numrotate = "-b",
localandnetworklog = "-L",
remotelogging = "-R",
}
local configdata = {}
for name, entry in pairs(variabletranslator) do
if config.value[name] and config.value[name].type == "boolean" then
if config.value[name].value then configdata[entry] = "" end
elseif config.value[name] and config.value[name].value and #config.value[name].value > 0 then
configdata[entry] = config.value[name].value
else
configdata[entry] = nil
end
end
fs.write_file(configfile, format.update_ini_file(fs.read_file(configfile) or "", "", variable, '"'..format.table_to_opts(configdata) .. '"'))
end
local makeconfig = function(configcontent)
local config = {}
configcontent = configcontent or {}
-- Next section selects which configurations we should show to the user
config["logfile"] = cfe({
label = "Log to given file",
descr = "File must be in /var/log directory",
value = configcontent["-O"] or "/var/log/messages",
})
config["loglevel"] = cfe({
label = "Set local log level",
value = configcontent["-l"] or "8",
type = "select",
option = getloglevels(),
descr = "1=Quiet, ... , " .. table.maxn(getloglevels()) .. "=Debug",
})
config["smallerlogs"] = cfe({
label = "Smaller logging output",
value = (configcontent["-S"] == ""),
type = "boolean",
})
config["maxsize"] = cfe ({
label = "Max size (KB) before rotate",
descr = "Default=200KB, 0=off",
value = configcontent["-s"] or "",
})
config["numrotate"] = cfe ({
label = "Number of rotated logs to keep",
descr = "Default=1, max=99, 0=purge",
value = configcontent["-b"] or "",
})
config["localandnetworklog"] = cfe ({
label = "Log locally and via network",
value = (configcontent["-L"] == ""),
type = "boolean",
descr = "Default is network only if host[:PORT] is defined",
})
config["remotelogging"] = cfe ({
label = "Log to IP or hostname on PORT",
descr = "host[:PORT] - Default PORT=514/UDP",
value = configcontent["-R"] or "",
})
return cfe({ type="group", value=config, label="Configuration" })
end
local validateconfig = function(config)
local success = true
-- Validate entries and create error strings
if not validator.is_valid_filename(config.value.logfile.value, "/var/log") then
config.value.logfile.errtxt = "Not a valid file name in /var/log"
success = false
end
if not validator.is_integer_in_range(config.value.loglevel.value, 1, 8) then
config.value.loglevel.errtxt = "Out of range!"
success = false
end
if config.value.maxsize.value ~= "" and not validator.is_integer(config.value.maxsize.value) then
config.value.maxsize.errtxt = "Must be an integer"
success = false
end
if config.value.numrotate.value ~= "" and not validator.is_integer_in_range(config.value.numrotate.value, 0, 99) then
config.value.numrotate.errtxt = "Out of range!"
success = false
end
if config.value.localandnetworklog.value == true and config.value.remotelogging.value == "" then
config.value.localandnetworklog.errtxt = "Logging to local and network is not possible unless you define a host for remote logging"
success = false
end
local hostport = format.string_to_table(config.value.remotelogging.value, ":")
if hostport[2] and not (validator.is_port(hostport[2])) then
config.value.remotelogging.errtxt = "Not a valid port"
success = false
end
return success, config
end
local validate_configfile = function(filedetails)
local success = true
local configcontent = format.opts_to_table(string.sub((format.parse_ini_file(filedetails.value.filecontent.value, "", "SYSLOGD_OPTS") or ""),2,-2))
local config = makeconfig(configcontent)
success, config = validateconfig(config)
if not success then
local errormessages = {}
for x,y in pairs(config.value) do
if y.errtxt then
errormessages[#errormessages + 1] = y.label .. " - " .. y.errtxt
end
end
filedetails.value.filecontent.errtxt = table.concat(errormessages, "\n")
end
return success, filedetails
end
-- ################################################################################
-- PUBLIC FUNCTIONS
function startstop_service(action)
return modelfunctions.startstop_service(processinitname, action)
end
function getstatus()
return modelfunctions.getstatus(processname, packagename, "Syslog Status", processinitname)
end
function getlogging()
local status = {}
local opts = getconfig()
if (opts.value.remotelogging.value == "") or (opts.value.localandnetworklog.value) then
status.logfile = cfe({
label="Locally logging to",
value=opts.value.logfile.value,
})
end
if (opts.value.remotelogging.value ~= "") then
status.remote = cfe({
label="Remote logging to",
value=opts.value.remotelogging.value,
})
end
return cfe({ type="group", value=status })
end
function get_filedetails()
return modelfunctions.getfiledetails(configfile)
end
function getconfig()
local config = {}
if (fs.is_file(configfile)) then
local configcontent = format.opts_to_table(string.sub((format.parse_ini_file(fs.read_file(configfile) or "", "", "SYSLOGD_OPTS") or ""),2,-2))
config = makeconfig(configcontent)
else
config = makeconfig()
config["errtxt"] = "Config file '".. configfile .. "' is missing!"
end
return config
end
function updateconfig (config)
local success = true
success, config = validateconfig(config)
if success == true then
writeconfig(config)
else
config.errtxt = "Failed to save config!"
end
return config
end
function update_filedetails (filedetails)
return modelfunctions.setfiledetails(filedetails, {configfile}, validate_configfile)
end
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