Class: HQ::SmsGlobal::BalanceCheck::Script

Inherits:
Tools::CheckScript
  • Object
show all
Includes:
Tools::Escape
Defined in:
lib/hq/sms-global/balance-check/script.rb

Instance Method Summary collapse

Instance Method Details

#get_balance_from_server ⇒ Object 



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# File 'lib/hq/sms-global/balance-check/script.rb', line 152

def get_balance_from_server

	url =
		URI.parse "#{@server_elem["url"]}/balance-api.php"

	url.query =
		URI.encode_www_form({
			"user" => @account_elem["username"],
			"password" => @account_elem["password"],
		})

	http =
		Net::HTTP.new url.host, url.port

	http.open_timeout = @opts[:timeout]
	http.read_timeout = @opts[:timeout]

	http.start

	begin

		request = Net::HTTP::Get.new "#{url.path}?#{url.query}"

		response = http.request request

		unless response.code == "200"
			unknown "server status #{response.code}"
			return
		end

		unless response.body =~ /^BALANCE: ([^;]+); USER: (.+)$/
			unknown "invalid server response"
			return
		end

		@actual_balance =
			$1.to_f

	rescue Timeout::Error

		unknown "server timed out"
		return

	ensure

		http.finish

	end

end

#load_config ⇒ Object 



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# File 'lib/hq/sms-global/balance-check/script.rb', line 61

def load_config

	config_doc =
		XML::Document.file @opts[:config]

	@config_elem =
		config_doc.root

	@server_elem =
		@config_elem.find_first "server"

	@cache_elem =
		@config_elem.find_first "cache"

	@account_elem =
		@config_elem.find_first "account [
			@name = #{esc_xp @opts[:account]}
		]"

end

#perform_checks ⇒ Object 



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# File 'lib/hq/sms-global/balance-check/script.rb', line 82

def perform_checks

	get_balance_from_server

	if @actual_balance
		used_cache = false
	elsif @cache_elem
		read_cache
		@unknown = false
		used_cache = true
	else
		return
	end

	# report balance

	if @actual_balance < @opts[:critical]

		critical "%s credits (critical is %s)" % [
			@actual_balance.to_i,
			@opts[:critical].to_i,
		]

	elsif @actual_balance < @opts[:warning]

		warning "%s credits (warning is %s)" % [
			@actual_balance.to_i,
			@opts[:warning].to_i,
		]

	else

		message "%s credits" % [
			@actual_balance.to_i,
		]

	end

	# report cache usage

	if used_cache

		if @opts[:cache_critical] \
			&& @cache_age >= @opts[:cache_critical]

			critical "last check %s seconds ago (critical is %s)" % [
				@cache_age,
				@opts[:cache_critical]
			]

		elsif @opts[:cache_warning] \
			&& @cache_age >= @opts[:cache_warning]

			warning "last check %s seconds ago (warning is %s)" % [
				@cache_age,
				@opts[:cache_warning]
			]

		else

			message "last check #{@cache_age} seconds ago"

		end

	end

	write_cache

end

#prepare ⇒ Object 



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# File 'lib/hq/sms-global/balance-check/script.rb', line 55

def prepare

	load_config

end

#process_args ⇒ Object 



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# File 'lib/hq/sms-global/balance-check/script.rb', line 18

def process_args

	@opts, @args =
		Tools::Getopt.process @args, [

			{ :name => :config,
				:required => true },

			{ :name => :account,
				:required => true },

			{ :name => :warning,
				:convert => :to_f,
				:required => true },

			{ :name => :critical,
				:convert => :to_f,
				:required => true },

			{ :name => :timeout,
				:convert => :to_f,
				:required => true },

			{ :name => :cache_warning,
				:convert => :to_i },

			{ :name => :cache_critical,
				:convert => :to_i },

		]

	raise "Extra args" unless @args.empty?

	@name = "SMS Global #{@opts[:account]}"

end

#read_cache ⇒ Object 



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# File 'lib/hq/sms-global/balance-check/script.rb', line 203

def read_cache

	cache_path = "%s/%s.yaml" % [
		@cache_elem["dir"],
		@opts[:account],
	]

	cache_data =
		YAML.load_file cache_path

	@actual_balance =
		cache_data["balance"]

	@cache_age =
		(Time.now - cache_data["timestamp"]).to_i

end

#write_cache ⇒ Object 



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# File 'lib/hq/sms-global/balance-check/script.rb', line 221

def write_cache

	return unless @cache_elem

	cache_data = {
		"balance" => @actual_balance,
		"timestamp" => Time.now,
	}

	cache_path = "%s/%s.yaml" % [
		@cache_elem["dir"],
		@opts[:account],
	]

	File.open "#{cache_path}.new", "w" do
		|cache_io|

		cache_io.write YAML.dump cache_data

	end

	FileUtils.mv "#{cache_path}.new", cache_path

end