From 132a51a124fb1fa5e48f3b0982b9742572bc922c Mon Sep 17 00:00:00 2001
From: Mika Havela <mika.havela@gmail.com>
Date: Tue, 8 Apr 2008 15:13:54 +0000
Subject: Cleaning up code.

git-svn-id: svn://svn.alpinelinux.org/acf/snort/trunk@962 ab2d0c66-481e-0410-8bed-d214d4d58bed
---
 snort-controller.lua  | 91 ++++++++++++++++++++++++++-------------------------
 snort-expert-html.lsp | 79 ++++++++++----------------------------------
 snort-model.lua       | 47 ++++++++------------------
 snort-status-html.lsp | 65 ++++++++++++------------------------
 4 files changed, 98 insertions(+), 184 deletions(-)

diff --git a/snort-controller.lua b/snort-controller.lua
index 926bab3..bc49d4a 100644
--- a/snort-controller.lua
+++ b/snort-controller.lua
@@ -1,32 +1,18 @@
 module (..., package.seeall)
+
+-- Load libraries
 require("posix")
--- Cause an http redirect to our "read" action
--- We use the self.conf table because it already has prefix,controller,etc
--- The redir code is defined in the application error handler (acf-controller)
-local list_redir = function (self)
+
+-- ################################################################################
+-- LOCAL FUNCTIONS
+
+local function list_redir(self)
 	self.conf.action = "status"
 	self.conf.type = "redir"
 	error (self.conf)
 end
 
-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
-
-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 displaycmdmanagement(disablestart,disablestop,disablerestart)
+local function displaycmdmanagement(pidofstatus)
 	-- Add a management buttons
 	local management = {}
 	management.start = cfe({ name="cmdmanagement",
@@ -44,19 +30,38 @@ local function displaycmdmanagement(disablestart,disablestop,disablerestart)
 		value="Restart",
 		type="submit",
 		})
+	-- next CFE can be used to present the result of the previous action
+	management.actionresult = cfe({ name="actionresult",
+		label="Previous action result",
+		descr="",		--Content of this variable is displayed as <PRE> ... </PRE> in BLACK text
+		errtxt="",	--Content of this variable is displayed as <PRE> ... </PRE> in RED text
+		})
 
 	-- Disable management buttons based on if the process is running or not
-	if (disablestart) then management.start.disabled = "yes" end
-	if (disablestop) then management.stop.disabled = "yes" end
-	if (disablerestart) then management.restart.disabled = "yes" end
+	if (pidofstatus) then 
+		management.start.disabled = "yes"
+	else
+		management.stop.disabled = "yes"
+		management.restart.disabled = "yes"
+	end
 
 	return management
 end
 
+-- ################################################################################
+-- PUBLIC FUNCTIONS
+
+mvc={}
+function mvc.on_load(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 srvcmdresult = nil
 	local srvcmd = self.clientdata.srvcmd
-	local status = getstatus(self)
+	local status = self.model:getstatus(self)
 
 	local alerts,alertresult = self.model:read_alert()
 	return ({
@@ -76,7 +81,7 @@ function expert(self)
 	end
 
 	-- Start/Stop/Restart process
-	local cmdmanagement
+	local cmdmanagement, actionresult
 	if ( self.clientdata.cmdmanagement) then
 	cmdmanagement = cfe({ 
 		name="cmdmanagement",
@@ -86,10 +91,10 @@ function expert(self)
 			value=string.lower(self.clientdata.cmdmanagement),  -- This row contains start/stop/restart (one of these commands)
 			}),
 		})
-		local actionresult, cmdmanagement = self.model:startstop_service( cmdmanagement.action )
+		actionresult, cmdmanagement = self.model:startstop_service( cmdmanagement.action )
 	end
 
-	local status = getstatus(self)
+	local status = self.model:getstatus(self)
 	local file = self.model:get_filedetails()
 
 	-- Add buttons
@@ -103,26 +108,22 @@ function expert(self)
 		file.cmdsave.descr="* Changes has been saved!"
 	end	
 
-	-- Management buttons
-	local disablestart,disablestop,disablerestart
-	-- Disable management buttons based on if the process is running or not
-	if (string.lower(status.status.value) == "enabled" ) then
-		disablestart = "yes"
-	else
-		disablestop = "yes"
+	-- Management buttons (Hide/show buttons
+	local pidofstatus
+	if (string.lower(status.status.value) == "enabled" ) then pidofstatus = true end
+	management = displaycmdmanagement(pidofstatus)
+	if (actionresult) then
+		management.actionresult.descr=cmdmanagement.descr
+		management.actionresult.errtxt=cmdmanagement.errtxt
+	end
+	if (status) and (status.version) and (#status.version.value == 0) then
+		management.start.disabled = "yes"
+		management.stop.disabled = "yes"
+		management.restart.disabled = "yes"
 	end
-	-- Display management buttons
-	local management = displaycmdmanagement(disablestart,disablestop,disablerestart)
-
-
-
---	if ( cmd ~= nil ) then
---		startstop = self.model:startstop_service( cmd )
---	end
 
 	return ( {
 		management = management,
-		cmdmanagement = cmdmanagement,
 		status = status, 
 		file = file, 
 		modifications = modifications,
diff --git a/snort-expert-html.lsp b/snort-expert-html.lsp
index 2217089..2e4dc31 100644
--- a/snort-expert-html.lsp
+++ b/snort-expert-html.lsp
@@ -1,40 +1,19 @@
-<? local view = ... ?>
+<? local form = ... 
+require("viewfunctions")
+?>
 <?
 --[[ DEBUG INFORMATION
 io.write("<H1>DEBUGGING</H1><span style='color:red'><H2>DEBUG INFO: CFE</H2>")
-io.write(html.cfe_unpack(view))
+io.write(html.cfe_unpack(form))
 io.write("</span>")
 --]]
 ?>
-<?
-function displayinfo(myform,tags,viewonly)
-	for k,v in pairs(tags) do 
-		if (myform[v]) and (myform[v]["value"]) then
-			local val = myform[v] 
-			io.write("\t<DT")
-			if (#val.errtxt > 0) then 
-				val.class = "error"
-				io.write(" class='error'")
-			end
-			io.write(">" .. val.label .. "</DT>\n")
-			if (viewonly) then
-				io.write("\t\t<DD>" .. val.value .. "\n")
-			else
-				io.write("\t\t<DD>" .. html.form[val.type](val) .. "\n")
-			end
-			if (val.descr) and (#val.descr > 0) then io.write("\t\t<P CLASS='descr'>" .. string.gsub(val.descr, "\n", "<BR>") .. "</P>\n") end
-			if (#val.errtxt > 0) then io.write("\t\t<P CLASS='error'>" .. string.gsub(val.errtxt, "\n", "<BR>") .. "</P>\n") end
-			io.write("\t\t</DD>\n")
-		end
-	end
-end
-?>
 
 <H1>SYSTEM INFO</H1>
 <DL>
 <? 
-local myform = view.status 
-local tags = { "status", "version", }
+local myform = form.status 
+local tags = { "status", "version", "autostart", }
 displayinfo(myform,tags,"viewonly")
 ?>
 </DL>
@@ -45,7 +24,7 @@ displayinfo(myform,tags,"viewonly")
 <h3>File details</h3>
 <DL>
 <? 
-local myform = view.file 
+local myform = form.file 
 local tags = { "filename", "filesize", "mtime", "sumerrors", }
 displayinfo(myform,tags,"viewonly")
 ?>
@@ -53,7 +32,7 @@ displayinfo(myform,tags,"viewonly")
 
 <H3>FILE CONTENT</H3>
 <? 
-local myform = view.file
+local myform = form.file
 io.write(html.form[myform.filecontent.type](myform.filecontent))
 ?>
 
@@ -65,38 +44,14 @@ displayinfo(myform,tags)
 ?>
 </DL>
 
-</form>
-
-<? -- MANAGEMENT BUTTONS
-local cmdform = view.management
-local cmdresult = view.cmdmanagement
-local tags = { "start", "stop", "restart" }
-if (cmdform) and (cmdform[tags[1]]) then
-
-	io.write('<form name="management" action="" method="POST">')
-	io.write('<H1>MANAGEMENT</H1>')
-	io.write('<dl>')
-	io.write('<dt>' .. cmdform[tags[1]]["label"] .. '</dt>')
-	io.write('<dd>')
-	for k,v in pairs(tags) do
-		if (cmdform[v]) then
-			io.write(html.form[cmdform[v].type](cmdform[v]))
-		end
-	end
-	io.write('</dd>')
-
-	if (cmdresult) and (cmdresult.action) and (#cmdresult.action.descr > 0) then
-		io.write('<dt>' .. cmdresult.label .. '</dt>')
-		io.write('<dd><pre>' .. cmdresult.action.descr .. '</pre></dd>')
-	end
-	io.write('</dl></form>')
-end ?>
-
 <?
---[[ DEBUG INFORMATION
-io.write("<H1>DEBUGGING</H1><span style='color:red'><H2>DEBUG INFO: CFE</H2>")
-io.write(html.cfe_unpack(form))
-io.write("</span>")
---]]
+-- Management buttons
+local myform = form.management
+local tags = { "start", "stop", "restart" }
+if (myform) then
+	io.write("<H1>MANAGEMENT</H1>\n<DL>")
+	displaymanagement(myform,tags)
+	io.write("</DL>")
+end
 ?>
-
+</form>
diff --git a/snort-model.lua b/snort-model.lua
index 8a4450a..f933283 100644
--- a/snort-model.lua
+++ b/snort-model.lua
@@ -1,46 +1,29 @@
 -- acf model for displaying logfiles recusivly 
 module (..., package.seeall)
 
--- no initializer in model - use controller.init for that
-
+-- Load libraries
 require("fs")
 require("posix")
 require("procps")
 require("daemoncontrol")
 require("format")
+require("processinfo")
 
+-- Set variables
+local packagename = "snort"
 local processname = "snort"
 local configfile = "/etc/snort/snort.conf"
 
 -- ################################################################################
 -- LOCAL FUNCTIONS
 
-local function get_version()
-	local cmd_output_result, cmd_output_error
-	local cmd = "/sbin/apk_version -vs " .. processname .." 2>/dev/null"
-	local f = io.popen( cmd )
-	local cmdresult = f:read("*l")
-	if (cmdresult) and (#cmdresult > 0) then
-		cmd_output_result = string.match(cmdresult,"^%S*") or "Unknown"
+local function process_status_text(procname)
+	local t = procps.pidof(procname)
+	if (t) and (#t > 0) then
+		return "Enabled"
 	else
-		cmd_output_error = "Program not installed"
-	end	
-	f:close()
-	return cmd_output_result,cmd_output_error
-end
-
-local function autostarts()
-	local cmd_output_result, cmd_output_error
-	local cmd = "/sbin/rc_status | egrep '^S' | egrep '" .. processname .."' 2>/dev/null"
-	local f = io.popen( cmd )
-	local cmdresult = f:read("*a")
-	if (cmdresult) and (#cmdresult > 0) then
-		cmd_output_result = "Process will autostart at next boot (at sequence '" .. string.match(cmdresult,"^%a+(%d%d)") .. "')"
-	else
-		cmd_output_error = "Not programmed to autostart"
-	end	
-	f:close()
-	return cmd_output_result,cmd_output_error
+		return "Disabled"
+	end
 end
 
 -- ################################################################################
@@ -49,20 +32,19 @@ end
 function getstatus ()
 	local status = {}
 
-	local value, errtxt = get_version()
+	local value, errtxt = processinfo.package_version(packagename)
 	status.version = cfe({ name = "version",
 		label="Program version",
 		value=value,
 		errtxt=errtxt,
 		 })
 
-	status.status = cfe({ 
-		name="status",
+	status.status = cfe({ name="status",
 		label="Program status",
-		value=procps.pidof(processname) or "",
+		value=process_status_text(processname),
 		})
 
-	local autostart_sequense, autostart_errtxt = autostarts()
+	local autostart_sequense, autostart_errtxt = processinfo.process_botsequence(processname)
 	status.autostart = cfe({ name="autostart",
 		label="Autostart sequence",
 		value=autostart_sequense,
@@ -139,7 +121,6 @@ function startstop_service ( self, action )
 	local cmdresult,cmdmessage,cmderror,cmdaction = daemoncontrol.daemoncontrol("snort", cmd)
 	action.descr=cmdmessage
 	action.errtxt=cmderror
-	-- Reporting back (true|false, the original acition)
 	return cmdresult,action
 end
 
diff --git a/snort-status-html.lsp b/snort-status-html.lsp
index 9233f84..2efe386 100644
--- a/snort-status-html.lsp
+++ b/snort-status-html.lsp
@@ -1,33 +1,18 @@
-<? local view = ... ?>
-
+<? local form = ... 
+require("viewfunctions")
+?>
 <?
-function displayinfo(myform,tags,viewonly)
-	for k,v in pairs(tags) do 
-		if (myform[v]) and (myform[v]["value"]) then
-			local val = myform[v] 
-			io.write("\t<DT")
-			if (#val.errtxt > 0) then 
-				val.class = "error"
-				io.write(" class='error'")
-			end
-			io.write(">" .. val.label .. "</DT>\n")
-			if (viewonly) then
-				io.write("\t\t<DD>" .. val.value .. "\n")
-			else
-				io.write("\t\t<DD>" .. html.form[val.type](val) .. "\n")
-			end
-			if (val.descr) and (#val.descr > 0) then io.write("\t\t<P CLASS='descr'>" .. string.gsub(val.descr, "\n", "<BR>") .. "</P>\n") end
-			if (#val.errtxt > 0) then io.write("\t\t<P CLASS='error'>" .. string.gsub(val.errtxt, "\n", "<BR>") .. "</P>\n") end
-			io.write("\t\t</DD>\n")
-		end
-	end
-end
+--[[ DEBUG INFORMATION
+io.write("<H1>DEBUGGING</H1><span style='color:red'><H2>DEBUG INFO: CFE</H2>")
+io.write(html.cfe_unpack(form))
+io.write("</span>")
+--]]
 ?>
 
 <H1>SYSTEM INFO</H1>
 <DL>
 <? 
-local myform = view.status 
+local myform = form.status 
 local tags = { "status", "version", "autostart", }
 displayinfo(myform,tags,"viewonly")
 ?>
@@ -36,25 +21,25 @@ displayinfo(myform,tags,"viewonly")
 <H2>PROGRAM SPECIFIC OPTIONS/INFORMATION</H2>
 <DL>
 <dt>Counted alerts</dt>
-<dd><?= view.alerts ?> alert(s)</dd>
+<dd><?= form.alerts ?> alert(s)</dd>
 </DL>
 
 <h1>ALERT LIST</h1>
 
-<? for i=1, table.maxn(view.alertresult) do ?>
-	<h2><?= view.alertresult[i]["name"] ?></h2>
-	<? for j in pairs(view.alertresult[i]["value"]) do ?>
+<? for i=1, table.maxn(form.alertresult) do ?>
+	<h2><?= form.alertresult[i]["name"] ?></h2>
+	<? for j in pairs(form.alertresult[i]["value"]) do ?>
 		<h3><?= j ?></h3>
-		<? for k in pairs(view.alertresult[i]["value"][j]) do ?>
-			<p><B><?= view.alertresult[i]["value"][j][k]["value"][1] ?></B><BR>
-			<? for l=2, table.maxn(view.alertresult[i]["value"][j][k]["value"]) do ?>
-				<?= view.alertresult[i]["value"][j][k]["value"][l] ?><BR>
+		<? for k in pairs(form.alertresult[i]["value"][j]) do ?>
+			<p><B><?= form.alertresult[i]["value"][j][k]["value"][1] ?></B><BR>
+			<? for l=2, table.maxn(form.alertresult[i]["value"][j][k]["value"]) do ?>
+				<?= form.alertresult[i]["value"][j][k]["value"][l] ?><BR>
 			<? end ?>
-			<I>(This alarm is repeated <B><?= view.alertresult[i]["value"][j][k]["count"] ?></B> times)</I>
-			<? if (table.maxn(view.alertresult[i]["value"][j][k]["url"]) ~= 0) then ?>
+			<I>(This alarm is repeated <B><?= form.alertresult[i]["value"][j][k]["count"] ?></B> times)</I>
+			<? if (table.maxn(form.alertresult[i]["value"][j][k]["url"]) ~= 0) then ?>
 				( URL's:
-				<? for q=1, table.maxn(view.alertresult[i]["value"][j][k]["url"]) do ?>
-					<a href="<?= view.alertresult[i]["value"][j][k]["url"][q] ?>" target="_new"><img src="/static/tango/16x16/categories/applications-internet.png" alt="<?= view.alertresult[i]["value"][j][k]["url"][q] ?>"></a>
+				<? for q=1, table.maxn(form.alertresult[i]["value"][j][k]["url"]) do ?>
+					<a href="<?= form.alertresult[i]["value"][j][k]["url"][q] ?>" target="_new"><img src="/static/tango/16x16/categories/applications-internet.png" alt="<?= form.alertresult[i]["value"][j][k]["url"][q] ?>"></a>
 				<? end ?>
 			)
 			<? end ?>
@@ -63,11 +48,3 @@ displayinfo(myform,tags,"viewonly")
 
 	<? end ?>
 <? end ?>
-
-<?
---[[ DEBUG INFORMATION
-require("debugs")
-io.write(debugs.variables(view))
---]]
-?>
-
-- 
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