initial commit from appmail

lib/postal/config.rb

@@ -0,0 +1,162 @@
+require 'yaml'
+require 'pathname'
+require_relative 'error'
+require_relative 'version'
+
+module Postal
+
+  def self.host
+    @host ||= config.web.host || "localhost:5000"
+  end
+
+  def self.protocol
+    @protocol ||= config.web.protocol || "http"
+  end
+
+  def self.host_with_protocol
+    @host_with_protocol ||= "#{protocol}://#{host}"
+  end
+
+  def self.app_root
+    @app_root ||= Pathname.new(File.expand_path('../../../', __FILE__))
+  end
+
+  def self.config
+    @config ||= begin
+      require 'hashie/mash'
+      Hashie::Mash.new(yaml_config)
+    end
+  end
+
+  def self.config_root
+    @config_root ||= begin
+      if __FILE__ =~ /\A\/opt\/postal/
+        Pathname.new("/opt/postal/config")
+      elsif ENV['AM_CONFIG_ROOT']
+        Pathname.new(ENV['AM_CONFIG_ROOT'])
+      else
+        Pathname.new(File.expand_path("../../../config", __FILE__))
+      end
+    end
+  end
+
+  def self.config_file_path
+    @config_file_path ||= File.join(config_root, 'postal.yml')
+  end
+
+  def self.yaml_config
+    @yaml_config ||= File.exist?(config_file_path) ? YAML.load_file(config_file_path) : {}
+  end
+
+  def self.database_url
+    if config.main_db
+      "mysql2://#{config.main_db.username}:#{config.main_db.password}@#{config.main_db.host}:#{config.main_db.port}/#{config.main_db.database}?encoding=#{config.main_db.encoding || 'utf8mb4'}"
+    else
+      "mysql2://root@localhost/postal"
+    end
+  end
+
+  def self.logger_for(name)
+    @loggers ||= {}
+    @loggers[name.to_sym] ||= begin
+      require 'postal/app_logger'
+      if config.logging.stdout || ENV['LOG_TO_STDOUT']
+        Postal::AppLogger.new(name, STDOUT)
+      else
+        Postal::AppLogger.new(name, app_root.join('log', "#{name}.log"), config.logging.max_log_files || 10, (config.logging.max_log_file_size || 20).megabytes)
+      end
+    end
+  end
+
+  def self.process_name
+    @process_name ||= begin
+      string = "host:#{Socket.gethostname} pid:#{Process.pid}"
+      string += " procname:#{ENV['PROC_NAME']}" if ENV['PROC_NAME']
+      string
+    rescue
+      "pid:#{Process.pid}"
+    end
+  end
+
+  def self.locker_name
+    string = process_name.dup
+    string += " job:#{Thread.current[:job_id]}" if Thread.current[:job_id]
+    string
+  end
+
+  def self.smtp_from_name
+    config.smtp&.from_name || "Postal"
+  end
+
+  def self.smtp_from_address
+    config.smtp&.from_address || "postal@example.com"
+  end
+
+  def self.smtp_private_key
+    @smtp_private_key ||= OpenSSL::PKey::RSA.new(File.read(smtp_private_key_path))
+  end
+
+  def self.smtp_private_key_path
+    config_root.join('smtp.key')
+  end
+
+  def self.smtp_certificate_path
+    config_root.join('smtp.cert')
+  end
+
+  def self.smtp_certificate_data
+    @smtp_certificate_data ||= File.read(smtp_certificate_path)
+  end
+
+  def self.smtp_certificates
+    @smtp_certificates ||= begin
+      certs = self.smtp_certificate_data.scan(/-----BEGIN CERTIFICATE-----.+?-----END CERTIFICATE-----/m)
+      certs.map do |c|
+        OpenSSL::X509::Certificate.new(c)
+      end.freeze
+    end
+  end
+
+  def self.lets_encrypt_private_key_path
+    @lets_encrypt_private_key_path ||= Postal.config_root.join('lets_encrypt.pem')
+  end
+
+  def self.signing_key_path
+    config_root.join('signing.key')
+  end
+
+  def self.signing_key
+    @signing_key ||= OpenSSL::PKey::RSA.new(File.read(signing_key_path))
+  end
+
+  def self.amrp_dkim_dns_record
+    public_key = signing_key.public_key.to_s.gsub(/\-+[A-Z ]+\-+\n/, '').gsub(/\n/, '')
+    "v=DKIM1; t=s; h=sha256; p=#{public_key};"
+  end
+
+  class ConfigError < Postal::Error
+  end
+
+  def self.check_config!
+    unless File.exist?(self.config_file_path)
+      raise ConfigError, "No config found at #{self.config_file_path}"
+    end
+
+    unless File.exist?(self.smtp_private_key_path)
+      raise ConfigError, "No SMTP private key found at #{self.smtp_private_key_path}"
+    end
+
+    unless File.exist?(self.smtp_certificate_path)
+      raise ConfigError, "No SMTP certificate found at #{self.smtp_certificate_path}"
+    end
+
+    unless File.exists?(self.lets_encrypt_private_key_path)
+      raise ConfigError, "No Let's Encrypt private key found at #{self.lets_encrypt_private_key_path}"
+    end
+
+    unless File.exists?(self.signing_key_path)
+      raise ConfigError, "No signing key found at #{self.signing_key_path}"
+    end
+  end
+
+end