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-- Copyright(c) 2007 A. Brodmann - Licensed under terms of GPL2
module (..., package.seeall)
-- Load libraries
require("modelfunctions")
require("getopts")
--require "posix"
require("fs")
require("validator")
-- Set variables
dansguardiancfg = "/etc/dansguardian/dansguardian.conf"
dansguardiancfg2 = "/etc/dansguardian/dansguardianf1.conf"
local processname = "dansguardian"
local packagename = "dansguardian"
local baseurl = "/etc/dansguardian"
--[[
local categoryfiles = {
['weighted'] = tostring(baseurl .. "/weightedphraselist"),
['banned'] = tostring(baseurl .. "/bannedphraselist"),
['exception'] = tostring(baseurl .. "/exceptionphraselist"),
}
-- ################################################################################
-- LOCAL FUNCTIONS
local function get_includes_from_file(file)
local retval = {}
for k,v in pairs(fs.read_file_as_array(file)) do
if (string.match(v, '^%s*.Include')) then
local val = string.match(v,'^%s*.Include<(.*)>%s*')
retval[val] = true
end
end
return retval
end
local categoryfilecontent = {
['weighted'] = get_includes_from_file(categoryfiles['weighted']),
['banned'] = get_includes_from_file(categoryfiles['banned']),
['exception'] = get_includes_from_file(categoryfiles['exception']),
}
--]]
local validate_general_config = function( config )
local success = true
if config.value.filterip.value ~= "" and not validator.is_ipv4(config.value.filterip.value) then
config.value.filterip.errtxt = "Invalid IP address"
success = false
end
if not validator.is_port(config.value.filterport.value) then
config.value.filterport.errtxt = "Invalid port"
success = false
end
if not validator.is_ipv4(config.value.proxyip.value) then
config.value.proxyip.errtxt = "Invalid IP address"
success = false
end
if not validator.is_port(config.value.proxyport.value) then
config.value.proxyport.errtxt = "Invalid port"
success = false
end
-- FIXME don't know how to validate accessdeniedaddress
if not validator.is_integer(config.value.naughtynesslimit.value) then
config.value.naughtynesslimit.errtxt = "Invalid number"
success = false
end
return success, config
end
local is_valid_filename = function(filename)
local dirname = dirname(filename)
return validator.is_valid_filename(filename) and string.match(dirname, baseurl) and not string.match(dirname, "%.%.")
end
-- ################################################################################
-- PUBLIC FUNCTIONS
get_status = function()
return modelfunctions.getstatus(processname, packagename, "Dans Guardian Status")
end
startstop_service = function( action )
return modelfunctions.startstop_service(processname, action)
end
read_general_config = function()
local retval = { filterip = cfe({ label="Filter IP", descr="Leave blank to listen on all IPs" }),
filterport = cfe({ label="Filter Port" }),
proxyip = cfe({ label="Proxy IP" }),
proxyport = cfe({ label="Proxy Port" }),
accessdeniedaddress = cfe({ label="AccessDeniedAddress" }),
naughtynesslimit = cfe({ label="NaughtynessLimit" })
}
local config = getopts.getoptsfromfile(dansguardiancfg, "")
if config then
if config.filterip then retval.filterip.value = config.filterip end
if config.filterport then retval.filterport.value = config.filterport end
if config.proxyip then retval.proxyip.value = config.proxyip end
if config.proxyport then retval.proxyport.value = config.proxyport end
if config.accessdeniedaddress then retval.accessdeniedaddress.value = string.sub(config.accessdeniedaddress, 2, -2) end
end
config = getopts.getoptsfromfile(dansguardiancfg2, "")
if config then
if config.naughtynesslimit then retval.naughtynesslimit.value = config.naughtynesslimit end
end
return cfe({ type="group", value=retval, label="Dansguardian General Config" })
end
update_general_config = function( config )
local success, config = validate_general_config(config)
if success then
local a,b,c
local text = fs.read_file(dansguardiancfg) or ""
a,b,c,text = getopts.setoptsinfile(text, "", "filterip", config.value.filterip.value)
a,b,c,text = getopts.setoptsinfile(text, "", "filterport", config.value.filterport.value)
a,b,c,text = getopts.setoptsinfile(text, "", "proxyip", config.value.proxyip.value)
a,b,c,text = getopts.setoptsinfile(text, "", "proxyport", config.value.proxyport.value)
a,b,c,text = getopts.setoptsinfile(text, "", "accessdeniedaddress", "'"..config.value.accessdeniedaddress.value.."'")
fs.write_file(dansguardiancfg, string.gsub(text, "\n+$", ""))
if not fs.is_file(dansguardiancfg2) then fs.create_file(dansguardiancfg2) end
getopts.setoptsinfile(dansguardiancfg2, "", "naughtynesslimit", config.value.naughtynesslimit.value)
else
config.errtxt = "Failed to set config"
end
return config
end
get_file = function(filename)
local retval
if is_valid_filename(filename) then
retval = modelfunctions.getfiledetails(filename)
else
retval = modelfunctions.getfiledetails("")
retval.value.filename.value = filename
end
return retval
end
update_file = function(filedetails)
local retval
if is_valid_filename(filedetails.value.filename.value) then
retval = modelfunctions.setfiledetails(filedetails)
else
retval.value.filename.errtxt = "Invalid filename"
retval.errtxt = "Failed to save file"
end
return retval
end
list_files = function()
local retval = {}
for file in fs.find(null, baseurl) do
local details = fs.stat(file)
if details.type == "regular" and not string.match(file, "logrotation$") and not string.match(file, "%.conf$") and not string.match(file, "%.gif$") then
details.filename = file
table.insert(retval, details)
end
end
return cfe({ type="structure", value=retval, label="List of Dansguardian files" })
end
list_config_files = function()
local list = {}
local details = fs.stat(dansguardiancfg) or {}
list[1] = { filename=dansguardiancfg, size = details.size or 0, mtime = details.mtime or "---" }
details = fs.stat(dansguardiancfg2) or {}
list[2] = { filename=dansguardiancfg2, size = details.size or 0, mtime = details.mtime or "---" }
return cfe({ type="list", value=list, label="List of Dansguardian config files" })
end
--[[
get_categories = function()
local retval = {}
local entries = posix.dir( baseurl .. "/phraselists" )
for k,v in ipairs( entries ) do
local attrs = posix.stat( baseurl .. "/phraselists/" .. v )
if attrs.type == "directory" and v ~= "." and v ~= ".." then
local entrycontent = {}
local someactive = false
for k1,v1 in pairs(posix.dir( baseurl .. "/phraselists/" .. v )) do
if not string.match(v1, "^%.") then
local active
if (categoryfilecontent[string.match(v1,'%w*')][baseurl .. "/phraselists/" .. v .."/" .. v1]) then
active = true
someactive = true
end
table.insert(entrycontent, {name=v1, active=active, mhdebug=string.match(v1,'%w*'),mhdebug2=baseurl .. "/phraselists/" .. v .."/" .. v1})
end
end
table.insert( retval, {name=v, option=entrycontent, active=someactive} )
end
end
return retval
end
get_category = function(category, object)
local filename = baseurl .. "/phraselists/" .. category .. "/" .. object
if not (categoryfilecontent[string.match(object,'%w*')]) or
not (fs.is_file(filename)) or
not (validator.is_valid_filename(filename, baseurl)) then
return nil, "Something went wrong."
end
local retval = {}
retval.activate = cfe({
label="Activate this object",
type="checkbox",
checked="yes",
})
if not (categoryfilecontent[string.match(object,'%w*')][filename]) then
retval.activestatus = cfe({
label="Category object is currently",
errtxt = "Deactivated",
})
retval.activate.checked=nil
end
retval.configfile = cfe({
label="Activation is done in",
value=categoryfiles[string.match(object,'%w*')],
})
local filedetails = fs.stat(filename)
retval.mtime = cfe({
label="Modify date",
value=filedetails.mtime,
})
retval.category = cfe({
name="category",
label="Category name",
value=category,
})
retval.name = cfe({
name="name",
label="Object name",
value=object,
})
retval.filename = cfe({
name="filename",
label="Filename",
type="hidden",
value=filename,
})
retval.filecontent = cfe({
label="Filename",
value=fs.read_file(filename),
type="longtext",
})
return retval
end
--]]
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