thoraxe/gist:4463366

## gistfile1.rb
namespace :ipblocker do

  # send email with list of users that have visited more than N times yesterday
  desc "This task will send an email to the specified address(es) with a list of Visitors who exceeded N visits on date (default is yesterday, format YYYY-MM-DD)"
  task :email_alerts, :address, :limit, :date, :needs => :environment do |t, args|
    args.with_defaults(:address => "root@localhost", :limit => 150, :date => Date.yesterday.to_s)
    puts "Limit: " + args.limit.to_s
    @limit = args.limit.to_i
    @address = args.address
    @date = args.date
    @visits = Visit.find(:all, :conditions => ["created_at LIKE ?", "%" + @date + "%"])
    # group by visitor_id
    @visits_grouped = @visits.group_by{|v| v.visitor_id}

    # iterate and check limits
    @overlimit_visitor_ids = []
    @visits_grouped.each do |v|
      if v[1].length > @limit
        # over the limit so we will add this user to the email list
        @overlimit_visitor_ids << v[0]
        #puts v[0].to_s + ": over"
      end
    end
    @overlimit_visitors = Visitor.find(@overlimit_visitor_ids)

    # build the mail only if there are visitors worth mailing about
    if @overlimit_visitors.length > 0
      require 'net/smtp'
      Net::SMTP.start('localhost') do |smtp|
        smtp.open_message_stream(@address,@address) do |f|
          f.puts 'From: ' + @address
          f.puts 'To: ' + @address
          f.puts 'Subject: IP Blocker violators list'
          f.puts ''
          @overlimit_visitors.each do |v|
            f.puts v.ip_address + " : " + @visits_grouped[v.id].length.to_s + " visits"
          end
        end
      end
    end
  end
	namespace :ipblocker do

	# send email with list of users that have visited more than N times yesterday
	desc "This task will send an email to the specified address(es) with a list of Visitors who exceeded N visits on date (default is yesterday, format YYYY-MM-DD)"
	task :email_alerts, :address, :limit, :date, :needs => :environment do \|t, args\|
	args.with_defaults(:address => "root@localhost", :limit => 150, :date => Date.yesterday.to_s)
	puts "Limit: " + args.limit.to_s
	@limit = args.limit.to_i
	@address = args.address
	@date = args.date
	@visits = Visit.find(:all, :conditions => ["created_at LIKE ?", "%" + @date + "%"])
	# group by visitor_id
	@visits_grouped = @visits.group_by{\|v\| v.visitor_id}

	# iterate and check limits
	@overlimit_visitor_ids = []
	@visits_grouped.each do \|v\|
	if v[1].length > @limit
	# over the limit so we will add this user to the email list
	@overlimit_visitor_ids << v[0]
	#puts v[0].to_s + ": over"
	end
	end
	@overlimit_visitors = Visitor.find(@overlimit_visitor_ids)

	# build the mail only if there are visitors worth mailing about
	if @overlimit_visitors.length > 0
	require 'net/smtp'
	Net::SMTP.start('localhost') do \|smtp\|
	smtp.open_message_stream(@address,@address) do \|f\|
	f.puts 'From: ' + @address
	f.puts 'To: ' + @address
	f.puts 'Subject: IP Blocker violators list'
	f.puts ''
	@overlimit_visitors.each do \|v\|
	f.puts v.ip_address + " : " + @visits_grouped[v.id].length.to_s + " visits"
	end
	end
	end
	end
	end