Class: Mocksmtpd

Inherits:
Object
  • Object
show all
Includes:
ERB::Util
Defined in:
lib/mocksmtpd.rb

Constant Summary collapse

VERSION = 
'0.0.3'
TEMPLATE_DIR = 
Pathname.new(File.dirname(__FILE__)) + "../templates"

Instance Method Summary collapse

Constructor Details

#initialize(argv) ⇒ Mocksmtpd

Returns a new instance of Mocksmtpd.



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# File 'lib/mocksmtpd.rb', line 16

def initialize(argv)
  @opt = OptionParser.new
  @opt.banner = "Usage: #$0 [options] [start|stop|init PATH]"
  @opt.on("-f FILE", "--config=FILE", "Specify mocksmtpd.conf") do |v|
    @conf_file = v
  end

  @opt.on("--version", "Show version string `#{VERSION}'") do
    puts VERSION
    exit
  end

  @opt.parse!(argv)

  if argv.empty?
    @command = "console"
  else
    @command = argv.shift
    commands = %w(start stop init)
    unless commands.include? @command
      opterror "No such command: #{@command}"
      exit 1
    end
  end

  if @command == "init"
    @init_dir = argv.shift || "mocksmtpd"
    if test(?e, @init_dir)
      opterror("Init path already exists: #{@init_dir}")
      exit 1
    end
  end
end

Instance Method Details

#console ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 153

def console
  load_conf
  @logger = create_logger
  @daemon = false
  smtpd
end

#create_logger(file = nil) ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 135

def create_logger(file = nil)
  file = file.to_s.strip
  file = nil if file.empty?
  lvstr = @conf[:LogLevel].to_s.strip
  lvstr = "INFO" unless %w{FATAL ERROR WARN INFO DEBUG}.include?(lvstr)
  level = WEBrick::BasicLog.const_get(lvstr)
  logger = WEBrick::Log.new(file, level)
  logger.debug("Logger initialized")
  return logger
end

#create_pid_file ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 160

def create_pid_file
  if @pidfile.exist?
    pid = @pidfile.read
    @logger.warn("pid file already exists: pid=#{pid}")
    exit 1
  end
  pid = Process.pid
  open(@pidfile, "w") do |io|
    io << pid
  end
  @logger.debug("pid file saved: pid=#{pid} file=#{@pidfile}")
end

#delete_pid_file ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 173

def delete_pid_file
  File.delete(@pidfile)
  @logger.debug("pid file deleted: file=#{@pidfile}")
end

#init ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 103

def init
  Dir.mkdir(@init_dir)
  puts "Created: #{@init_dir}/"
  path = Pathname.new(@init_dir)
  Dir.mkdir(path + "inbox")
  puts "Created: #{path + 'inbox'}/"
  Dir.mkdir(path + "log")
  puts "Created: #{path + 'log'}/"

  open(path + "mocksmtpd.conf", "w") do |io|
    io << template("mocksmtpd.conf").result(binding)
  end
  puts "Created: #{path + 'mocksmtpd.conf'}"
end

#init_permission ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 178

def init_permission
  File.umask(@conf[:Umask]) unless @conf[:Umask].nil?
  stat = File::Stat.new(@conf_file)
  uid = stat.uid
  gid = stat.gid
  begin
    Process.egid = gid
    Process.euid = uid
  rescue NotImplementedError => e
    @logger.debug("Process.euid= not implemented.")
  rescue Errno::EPERM => e
    @logger.warn("could not change euid/egid. #{e}")
  end
end

#load_conf ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 55

def load_conf
  @conf_file = Pathname.new(@conf_file || "./mocksmtpd.conf")
  unless @conf_file.exist? && @conf_file.readable?
    opterror "Can't load config file: #{@conf_file}"
    exit 1
  end
  @conf_file = @conf_file.realpath

  @conf = {}
  YAML.load_file(@conf_file).each do |k,v|
    @conf[k.intern] = v
  end

  @inbox = resolve_conf_path(@conf[:InboxDir])
  @logfile = resolve_conf_path(@conf[:LogFile])
  @pidfile = resolve_conf_path(@conf[:PidFile])

  @templates = load_templates
end

#load_templates ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 89

def load_templates
  result = {}
  result[:mail] = template("html/mail")
  result[:index] = template("html/index")
  result[:index_entry] = template("html/index_entry")
  return result
end

#opterror(msg) ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 50

def opterror(msg)
  puts("Error: #{msg}")
  puts(@opt.help)
end

#parse_mail(src, sender, recipients) ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 247

def parse_mail(src, sender, recipients)
  src = NKF.nkf("-wm", src)
  subject = src.match(/^Subject:\s*(.+)/i).to_a[1].to_s.strip
  date = src.match(/^Date:\s*(.+)/i).to_a[1].to_s.strip

  src = ERB::Util.h(src)
  src = src.gsub(%r{https?://[-_.!~*\'()a-zA-Z0-9;\/?:\@&=+\$,%#]+},'<a href="\0">\0</a>')
  src = src.gsub(/(?:\r\n|\r|\n)/, "<br />\n")

  if date.empty?
    date = Time.now
  else
    date = Time.parse(date)
  end

  mail = {
    :source => src,
    :sender => sender,
    :recipients => recipients,
    :subject => subject,
    :date => date,
  }

  format = "%Y%m%d%H%M%S"
  fname = date.strftime(format) + ".html"
  while @inbox.join(fname).exist?
    date += 1
    fname = date.strftime(format) + ".html"
  end

  mail[:file] = fname
  mail[:path] = @inbox.join(fname)

  return mail
end

#recieve_mail(src, sender, recipients) ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 238

def recieve_mail(src, sender, recipients)
  @logger.info "mail recieved from #{sender}"

  mail = parse_mail(src, sender, recipients)

  save_mail(mail)
  save_index(mail)
end

#resolve_conf_path(path) ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 75

def resolve_conf_path(path)
  result = nil
  if path[0] == ?/
    result = Pathname.new(path)
  else
    result = @conf_file.parent + path
  end
  return result.cleanpath
end

#run ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 85

def run
  send(@command)
end

#save_index(mail) ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 290

def save_index(mail)
  path = @inbox + "index.html"
  unless File.exist?(path)
    open(path, "w") do |io|
      io << @templates[:index].result(binding)
    end
  end

  htmlsrc = File.read(path)
  add = @templates[:index_entry].result(binding)

  htmlsrc.sub!(/<!-- ADD -->/, add)
  open(path, "w") do |io|
    io << htmlsrc
  end
  @logger.debug("index saved: #{path}")
end

#save_mail(mail) ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 283

def save_mail(mail)
  open(mail[:path], "w") do |io|
    io << @templates[:mail].result(binding)
  end
  @logger.debug("mail saved: #{mail[:path]}")
end

#smtpd ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 193

def smtpd
  start_cb = Proc.new do
    @logger.info("Inbox: #{@inbox}")
    if @daemon
      @logger.debug("LogFile: #{@logfile}")
      @logger.debug("PidFile: #{@pidfile}")
    end

    begin
      init_permission
      create_pid_file if @daemon
    rescue => e
      @logger.error("Start: #{e}")
      raise e
    end
  end

  stop_cb = Proc.new do
    begin
      delete_pid_file if @daemon
    rescue => e
      @logger.error("Stop: #{e}")
      raise e
    end
  end

  data_cb = Proc.new do |src, sender, recipients|
    recieve_mail(src, sender, recipients)
  end

  @conf[:ServerType] = @daemon ? WEBrick::Daemon : nil
  @conf[:Logger] = @logger
  @conf[:StartCallback] = start_cb
  @conf[:StopCallback] = stop_cb
  @conf[:DataHook] = data_cb

  server = SMTPServer.new(@conf)

  [:INT, :TERM].each do |signal|
    Signal.trap(signal) { server.shutdown }
  end

  server.start
end

#start ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 146

def start
  load_conf
  @logger = create_logger(@logfile)
  @daemon = true
  smtpd
end

#stop ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 118

def stop
  load_conf
  unless @pidfile.exist?
    puts "ERROR: pid file does not exist: #{@pidfile}"
    exit 1
  end
  unless @pidfile.readable?
    puts "ERROR: Can't read pid file: #{@pidfile}"
    exit 1
  end

  pid = File.read(@pidfile)
  print "Stopping #{pid}..."
  system "kill -TERM #{pid}"
  puts "done"
end

#template(name) ⇒ Object 



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# File 'lib/mocksmtpd.rb', line 97

def template(name)
  path = TEMPLATE_DIR + "#{name}.erb"
  src = path.read
  return ERB.new(src, nil, "%-")
end