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path: root/tinydns-controller.lua
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module(..., package.seeall)

-- Set variables
local newrecordtxt = "[New]"

-- ################################################################################
-- LOCAL FUNCTIONS

local list_redir = function (self)
	self.conf.action = "status"
	self.conf.type = "redir"
	error (self.conf)
end

local function getstatus(self)
	local status = self.model.getstatus()
	if (#status.status.value > 0) then
		status.status.value = "Enabled"
	else
		status.status.value = "Disabled"
	end

	return status
end

local function filtertable(t,limit,counter)
	if not (counter) then counter = 0 end		
	counter = counter + 1

	if (t) then
		for k,v in pairs(t) do
			if (counter > (limit + 2)) then
					t[k] = nil
			end
			if (type(t[k]) == "table") then
				filtertable(v,limit,counter)
			end
		end
	end
end

local function unpackoptions(t,array,descrfield)
	for k,v in pairs(t) do
		if not (v.option) then
			if (type(v) == "table") then
				unpackoptions(v,array,descrfield)
			end
		else
			if (v.option[descrfield]) and (v.option[descrfield].value) then
				table.insert(array, v.label .. " (" .. v.option[descrfield].value .. ")")
			else
				table.insert(array, v.label)
			end
		end
	end
end

local function unpackoptionstooriginal(t,array,filter)
	for k,v in pairs(t) do
		if not (v.option) then
			if (type(v) == "table") then
				unpackoptionstooriginal(v,array,filter)
			end
		else
			if (v.orgrecordtable) and (v.orgrecordtable[2] == filter) then
				table.insert(array, v.orgrecordtable)
			end
		end
	end
end


-- ################################################################################
-- PUBLIC FUNCTIONS

mvc = {}
mvc.on_load = function(self, parent)
	if (self.worker[self.conf.action] == nil ) or ( self.conf.action == "init" ) then
		self.worker[self.conf.action] = list_redir(self)
	end
end

function status(self)
	local config = {}
	config.settings = {}
	local locations=self.model.getlocations(self)
	local availablesigns = self.model.check_signs("prefix")

	config.locations = cfe ({
		name="locations",
		label="Defining locations",
		value=locations,
		})

	local prefix = "."
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.nsourdomain = cfe ({
		name="nsourdomain",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end

	local prefix = "&"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.nsdomain = cfe ({
		name="nsdomain",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end

	local prefix = "="
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.host = cfe ({
		name="host",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end

	local prefix = "+"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.alias = cfe ({
		name="alias",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end

	local prefix = "@"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.mx = cfe ({
		name="mx",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end

	local prefix = "^"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.ptr = cfe ({
		name="ptr",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end

	local prefix = "C"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.cname = cfe ({
		name="cname",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end

	local prefix = "Z"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.soa = cfe ({
		name="soa",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end

	local prefix = ":"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	if (#domainoptions > 0) then
	config.settings.generic = cfe ({
		name="generic",
		label=availablesigns[prefix],
		value=domainoptions,
		})
	end
--[[
	-- This could be used for DEBUGGING
	config.settings.all = cfe ({
		name="generic",
		label="All available records",
		value=self.model.getconfigobjects(self),
		})
--]]
	local counter

	return { 
		status=getstatus(self), 
		config=config,
		}
end
function expert(self)
	local cmdmanagement, cmdmanagementresult
	if ( self.clientdata.cmdmanagement) then
		cmdmanagement = cfe({ 
			name="cmdmanagement", 
			value=string.lower(self.clientdata.cmdmanagement),
			})
		cmdmanagementresult, cmdmanagement = self.model:startstop_service( cmdmanagement )
	end

	local status = getstatus(self)
	local config = self.model:getfilelist()

	return { 	
		option={ script=ENV["SCRIPT_NAME"],
			prefix=self.conf.prefix,
			controller = self.conf.controller,
			action = "expert", 
			link = ENV["SCRIPT_NAME"] .. self.conf.prefix .. self.conf.controller, },
		cmdmanagement = cmdmanagement,
		management = management,
		config = config, 
		status = status,
		startstop = startstop,
		debugclientdata = self.clientdata,
		}

end

function edit(self)
	local cmdmanagement, cmdmanagementresult, modifications
	if ( self.clientdata.cmdmanagement) then
		cmdmanagement = cfe({ 
			name="cmdmanagement", 
			value=string.lower(self.clientdata.cmdmanagement),
			})
		cmdmanagementresult, cmdmanagement = self.model:startstop_service( cmdmanagement )
	end

	-- Save changes
	if ( self.clientdata.cmdsave) then
		local filetochange = cfe ({ name=self.clientdata.name, value=self.clientdata.filecontent, })
		modifications = self.model:updatefilecontent(filetochange)
--		if not (modifications) then
--			self.conf.action = "status"
--			self.conf.type = "redir"
--			error (self.conf)
--		end
	end

	if not (self.model:valid_filename(self.clientdata.name)) then
		self.conf.action = "status"
		self.conf.type = "redir"
		error (self.conf)
	end

	local status = getstatus(self)
	local file = self.model:get_filedetails(self.clientdata.name)


	-- Add a cmd button to the view
	file.cmdsave = cfe({ name="cmdsave",
		label="Save/Apply above settings",
		value="Save",
		type="submit",
		})
	if (modifications) then
		file.cmdsave.descr="* Changes has been saved!"
	end	

	return { 	
		option={ script=ENV["SCRIPT_NAME"],
			prefix=self.conf.prefix,
			controller = self.conf.controller,
			action = "edit", 
			link = ENV["SCRIPT_NAME"] .. self.conf.prefix .. self.conf.controller, },
		cmdmanagement = cmdmanagement,
		modifications = modifications,
		management = management,
		file = file, 
		status = status,
		startstop = startstop,
		debugclientdata = self.clientdata,
		}

end
--[=[
function edit_records(self,types,record,errormessage)
	local recorddetails = {}
	local edit = {}
	local config=self.model:getconfig()

	-- Fetch the original record into a table
	local availablesigns = self.model.check_signs()
	local prefix = availablesigns["reverse"][types]
	local domainopts = {}
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptionstooriginal(domainoptions, domainopts,string.match(record, "^%S*"))
	domainopts=unpack(domainopts)

	-- Display the inputfields (with the original record)
	local numfields = math.max(#domainopts,#availablesigns["fieldlabels"][prefix])
	for fieldnum=2,tonumber(numfields) do
		edit[fieldnum] = cfe({ 
			name=fieldnum,
			value=domainopts[fieldnum],
			label=availablesigns["fieldlabels"][prefix][fieldnum] or "",
			})
	end

	table.insert(edit, cfe({ 
			name=#edit,
			label="DEBUG: Original record",
			value=domainopts.orgrecord,
			errtxt="This field will go away soon! It's only for debugging!"
			}))

	-- Adding select-boxes
	local locationselectbox
	local locationfileds = {
			['.']=7,
			['&']=7,
			['=']=6,
			['+']=6,
			['@']=8,
			['^']=6,
			['C']=6,
			['Z']=12,
			[':']=7,
			}
	locationselectbox = locationfileds[prefix]
	if (locationselectbox) then
		local locations=self.model.getlocations(self)
		edit[locationselectbox]["option"] = {}
		edit[locationselectbox]["type"] = "select"
		table.insert(edit[locationselectbox]["option"], "")
		for v in pairs(locations or {}) do
			table.insert(edit[locationselectbox]["option"], v)
		end
		-- IF the value is not one of the existing options, then warn and add this option.
		for k,v in pairs(edit[locationselectbox]["option"]) do
			edit[locationselectbox]["errtxt"] = "'" .. edit[locationselectbox]["value"] .. "' is defined as a location!"
			if (tostring(v) == tostring(edit[locationselectbox]["value"])) then
				edit[locationselectbox]["errtxt"] = ""
				break
			end
		end
		-- Now add this option to the list (just to show what it was)
		if (#edit[locationselectbox]["errtxt"] > 0) then
			table.insert(edit[locationselectbox]["option"], edit[locationselectbox]["value"])
		end
	end

	return {
		edit=edit,
		option={ script=ENV["SCRIPT_NAME"],
			prefix=self.conf.prefix,
			controller = self.conf.controller,
			action = "config", 
			link = ENV["SCRIPT_NAME"] .. self.conf.prefix .. self.conf.controller, },
		cmdsave=cmdsave,
		cmddelete=cmddelete,
		clientdata=clientdata,
		debugtypes=types,
		debugrecord=string.match(record, "^%S*"),
		}
end
function config(self,messages)
	local config = self.model.getconfig(self)
	local debug = self.model.getdebug(self)
	local availablesigns = self.model.check_signs("prefix")

	-- LISTEN _________________________________________________________
	-- Add button
	config.listen_cmd = cfe ({
		name="listen_cmd",
		label="Save above changes",
		value="Save",
		type="submit",
		disabled="yes",
		})


	-- LOCATIONS _________________________________________________________
	local locations=self.model.getlocations(self)
	config.locations = cfe ({
		name="locations",
		label="Locations",
		option={},
		type="select",
		})
	-- Add options
	for n in pairs(locations) do
		table.insert(config.locations.option, n)
	end
	-- Add a [New] record to the options
--	table.insert(config.locations.option, newrecordtxt)
	-- Set size of the inputbox
	config.locations.size = #config.locations.option
	if (#config.locations.option == 1) then
		config.locations.size = #config.locations.option + 1
	end

	-- Add button
	config.locations_cmd = cfe ({
		name="locations_cmd",
		label="Edit above location",
		value="Edit",
		descr="Mark a item in '" .. config.locations.label .. "'-list before pressing [Edit]",
		type="submit",
		disabled="yes",
		})

	-- Nameservers _________________________________________________________
	local prefix = "."
	local domainopts = {}
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.nsourdomain = cfe ({
		name="nsourdomain",
		type="select",
		label=availablesigns[prefix],
		option=domainopts,
--		descr="Above records look like '.fqdn:ip:x:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.nsourdomain.option, newrecordtxt)
	-- Set size of the inputbox
	config.nsourdomain.size = #config.nsourdomain.option
	if (#config.nsourdomain.option == 1) then
		config.nsourdomain.size = #config.nsourdomain.option + 1
	end

	-- Add button
	config.nsourdomain_cmd = cfe ({
		name="nsourdomain_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.nsourdomain.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})

	-- Nameservers _________________________________________________________
	local prefix = "&"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local domainopts = {}
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.nsdomain = cfe ({
		name="nsdomain",
		label=availablesigns[prefix],
		type="select",
		option=domainopts,
--		descr="Above records look like '&fqdn:ip:x:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.nsdomain.option, newrecordtxt)
	-- Set size of the inputbox
	config.nsdomain.size = #config.nsdomain.option
	if (#config.nsdomain.option == 1) then
		config.nsdomain.size = #config.nsdomain.option + 1
	end

	-- Add button
	config.nsdomain_cmd = cfe ({
		name="nsdomain_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.nsdomain.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})

	-- Host _________________________________________________________
	local prefix = "="
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local domainopts = {}
	-- Filter out options
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.host = cfe ({
		name="host",
		label=availablesigns[prefix],
		type="select",
		option=domainopts,
--		descr="Above records look like '=fqdn:ip:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.host.option, newrecordtxt)
	-- Set size of the inputbox
	config.host.size = #config.host.option
	if (#config.host.option == 1) then
		config.host.size = #config.host.option + 1
	end

	-- Add button
	config.host_cmd = cfe ({
		name="host_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.host.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})

	-- Alias _________________________________________________________
	local prefix = "+"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local domainopts = {}
	-- Filter out options
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.alias = cfe ({
		name="alias",
		label=availablesigns[prefix],
		type="select",
		option=domainopts,
--		descr="Above records look like '+fqdn:ip:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.alias.option, newrecordtxt)
	-- Set size of the inputbox
	config.alias.size = #config.alias.option
	if (#config.alias.option == 1) then
		config.alias.size = #config.alias.option + 1
	end

	-- Add button
	config.alias_cmd = cfe ({
		name="alias_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.alias.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})

	-- MX _________________________________________________________
	local prefix = "@"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local domainopts = {}
	-- Filter out options
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.mx = cfe ({
		name="mx",
		label=availablesigns[prefix],
		type="select",
		option=domainopts,
--		descr="Above records look like '@fqdn:ip:x:dist:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.mx.option, newrecordtxt)
	-- Set size of the inputbox
	config.mx.size = #config.mx.option
	if (#config.mx.option == 1) then
		config.mx.size = #config.mx.option + 1
	end

	-- Add button
	config.mx_cmd = cfe ({
		name="mx_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.mx.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})

	-- PTR _________________________________________________________
	local prefix = "^"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local domainopts = {}
	-- Filter out options
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.ptr = cfe ({
		name="ptr",
		label=availablesigns[prefix],
		type="select",
		option=domainopts,
--		descr="Above records look like '^fqdn:p:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.ptr.option, newrecordtxt)
	-- Set size of the inputbox
	config.ptr.size = #config.ptr.option
	if (#config.ptr.option == 1) then
		config.ptr.size = #config.ptr.option + 1
	end

	-- Add button
	config.ptr_cmd = cfe ({
		name="ptr_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.ptr.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})

	-- Cname _________________________________________________________
	local prefix = "C"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local domainopts = {}
	-- Filter out options
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.cname = cfe ({
		name="cname",
		label=availablesigns[prefix],
		type="select",
		option=domainopts,
--		descr="Above records look like 'Cfqdn:p:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.cname.option, newrecordtxt)
	-- Set size of the inputbox
	config.cname.size = #config.cname.option
	if (#config.cname.option == 1) then
		config.cname.size = #config.cname.option + 1
	end

	-- Add button
	config.cname_cmd = cfe ({
		name="cname_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.cname.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})

	-- SOA _________________________________________________________
	local prefix = "Z"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local domainopts = {}
	-- Filter out options
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.soa = cfe ({
		name="soa",
		label=availablesigns[prefix],
		type="select",
		option=domainopts,
--		descr="Above records look like 'Zfqdn:mname:rname:ser:ref:ret:exp:min:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.soa.option, newrecordtxt)
	-- Set size of the inputbox
	config.soa.size = #config.soa.option
	if (#config.soa.option == 1) then
		config.soa.size = #config.soa.option + 1
	end

	-- Add button
	config.soa_cmd = cfe ({
		name="soa_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.soa.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})

	-- GENERIC _________________________________________________________
	local prefix = ":"
	local domainoptions = self.model.getconfigobjects(self,prefix)
	local domainopts = {}
	-- Filter out options
	local descrfield = 2 	-- This is the filed that is shown as description (in the select-box)
	unpackoptions(domainoptions, domainopts,descrfield)
	config.generic = cfe ({
		name="generic",
		label=availablesigns[prefix],
		type="select",
		option=domainopts,
--		descr="Above records look like ':fqdn:n:rdata:ttl:timestamp:lo' when they are in the config-file.",
		})
	-- Add a [New] record to the options
--	table.insert(config.generic.option, newrecordtxt)
	-- Set size of the inputbox
	config.generic.size = #config.generic.option
	if (#config.generic.option == 1) then
		config.generic.size = #config.generic.option + 1
	end

	-- Add button
	config.generic_cmd = cfe ({
		name="generic_cmd",
		label="Edit above item",
		value="Edit",
		descr="Mark a item in '" .. config.generic.label .. "'-list before pressing [Edit]",
		type="submit",
--		disabled="yes",
		})


	-- DEBUGGING
	local level1 = {}
	local level2 = {}
	local level3 = {}
	local domainoptions = self.model.getconfigobjects(self)
	for k1,v1 in pairs(domainoptions) do
		table.insert(level1, v1.label)
		for k2,v2 in pairs(v1) do
			table.insert(level2, v2.label)
			if (type(v2) == "table") then
				for k3,v3 in pairs(v2) do
					table.insert(level3, v3.label)
				end
			end
		end
	end

--[[
	config.debuglevels = cfe ({
		name="debuglevels",
		label="Level1",
		type="select",
		option=domainoptions,
		})
--]]


	-- Redirect if button is pressed ***********************************
	local tags = {"locations", "nsourdomain", "nsdomain", "host", "alias", "mx", "ptr", "cname", "soa", "generic", }
	for k,tag in pairs(tags) do
		if (self.clientdata[tag .. "_cmd"]) and (self.clientdata[tag]) then
			self.conf.action = "edit_records"
			self.conf.type = "redir"
			return edit_records(self,tag, self.clientdata[tag])
		elseif (self.clientdata[tag .. "_cmd"]) and not (self.clientdata[tag]) then
			config[tag .. "_cmd"]["errtxt"] = "You need to specify a record to edit!"
		end
	end


	return ({
		status=getstatus(self),
		config=config,
		option={ script=ENV["SCRIPT_NAME"],
			prefix=self.conf.prefix,
			controller = self.conf.controller,
			action = "config", 
			link = ENV["SCRIPT_NAME"] .. self.conf.prefix .. self.conf.controller, },

	 	})
end
--]=]