Class: ProcessWanker::EventHookContext

Inherits:
Object
  • Object
show all
Includes:
Log
Defined in:
lib/events.rb

Constant Summary

Constants included from Log

Log::DEBUG, Log::ERROR, Log::INFO, Log::WARN

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Log

debug, error, info, log, set_level, warn

Instance Attribute Details

#event ⇒ Object

Returns the value of attribute event.



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# File 'lib/events.rb', line 99

def event
  @event
end

#service ⇒ Object

Returns the value of attribute service.



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# File 'lib/events.rb', line 98

def service
  @service
end

#should_stop_hooks ⇒ Object

Returns the value of attribute should_stop_hooks.



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# File 'lib/events.rb', line 100

def should_stop_hooks
  @should_stop_hooks
end

Instance Method Details

#email ⇒ Object

helpers



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# File 'lib/events.rb', line 108

def email()
	
	# find smtp config
	smtp_config=service.config_node.find_attributes("smtp").first
	if(!smtp_config)
		Log::error("attempting to send an email, but no SMTP configuration found")
		return
	end
	from_user,from_domain=smtp_config.from_addr.split("@")
	
	# construct email
	@email_addresses=smtp_config.to_addrs.clone
	@email_subject="ProcessWanker event: #{@event.type} from #{event.service_name}"
	@email_body="At #{@event.time}, #{event.service_name} triggered a <#{@event.type}> event\n"
	@email_body << "The current state is #{@event.service_state}.\n"
	@email_body << "Service stats:\n"
	@event.service_stats.each do |k,v|
		@email_body << "  #{sprintf("%-20s",k)} : #{v}\n"
	end
	@email_body << "\n"
	
	# allow configuration to override some values
	if(block_given?)
		yield
	end
	
	# send the email
	Log::debug("SENDING EMAIL: #{@email_addresses.inspect}")
	Log::debug(puts "Subject: #{@email_subject}")
	Log::debug(puts "Body: \n#{@email_body}")
	
	msg="From: #{smtp_config.from_addr}\n"
	msg << "To: #{@email_addresses.join(",")}\n"
	msg << "Subject: #{@email_subject}\n\n"
	msg << @email_body
	
	#
	# TODO: consider putting this in a different thread, or at least adding a timeout
	#
	
	ProcessWanker::with_logged_rescue("sending emails via #{smtp_config.server}") do
		
		smtp=Net::SMTP.new(smtp_config.server,smtp_config.port)
		
		if(smtp_config.secure == :tls || smtp_config.secure == :ssl)
			smtp.enable_tls
		elsif(smtp_config.secure == :starttls)
			smtp.enable_starttls
		end
		
		smtp.start(from_domain,
		           smtp_config.userid,
		           smtp_config.password,
		           smtp_config.auth_method)
		@email_addresses.each do |to|
			ProcessWanker::with_logged_rescue("sending email to #{to}") do
				smtp.send_message(msg,smtp_config.from_addr,to)
			end
		end
		smtp.finish
	end
	
	Log::debug("sent email")
	
end

#email_body(body) ⇒ Object 



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# File 'lib/events.rb', line 188

def email_body(body)
	@email_body=body
end

#email_subject(subject) ⇒ Object 



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# File 'lib/events.rb', line 184

def email_subject(subject)
	@email_subject = subject
end

#email_to_addrs(*addr) ⇒ Object

email helpers



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# File 'lib/events.rb', line 180

def email_to_addrs(*addr)
	@email_addresses += addr
end

#ignore ⇒ Object 



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# File 'lib/events.rb', line 217

def ignore
	info("hook requested service ignore")
	@event.service.set_want_state(:ignore)
end

#restart ⇒ Object 



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# File 'lib/events.rb', line 212

def restart
	info("hook requested service restart")
	@event.service.set_want_state(:restart)
end

#start ⇒ Object 



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# File 'lib/events.rb', line 202

def start
	info("hook requested service start")
	@event.service.set_want_state(:up)
end

#stop ⇒ Object 



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# File 'lib/events.rb', line 207

def stop
	info("hook requested service stop")
	@event.service.set_want_state(:down)
end

#stop_hooks ⇒ Object

general helpers



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# File 'lib/events.rb', line 198

def stop_hooks
	@should_stop_hooks=true
end