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puma--puma/lib/puma/configuration.rb
2017-03-09 11:38:26 -06:00

405 lines
8.1 KiB
Ruby

require 'puma/rack/builder'
require 'puma/plugin'
require 'puma/const'
module Puma
module ConfigDefault
DefaultRackup = "config.ru"
DefaultTCPHost = "0.0.0.0"
DefaultTCPPort = 9292
DefaultWorkerTimeout = 60
DefaultWorkerShutdownTimeout = 30
end
# class LeveledOptions
# def initialize(default_options, user_options)
# @cur = user_options
# @set = [@cur]
# @defaults = default_options.dup
# end
# def initialize_copy(other)
# @set = @set.map { |o| o.dup }
# @cur = @set.last
# end
# def shift
# @cur = {}
# @set << @cur
# end
# def reverse_shift
# @cur = {}
# @set.unshift(@cur)
# end
# def [](key)
# @set.reverse_each do |o|
# if o.key? key
# return o[key]
# end
# end
# v = @defaults[key]
# if v.respond_to? :call
# v.call
# else
# v
# end
# end
# def fetch(key, default=nil)
# val = self[key]
# return val if val
# default
# end
# attr_reader :cur
# def all_of(key)
# all = []
# @set.each do |o|
# if v = o[key]
# if v.kind_of? Array
# all += v
# else
# all << v
# end
# end
# end
# all
# end
# def []=(key, val)
# @cur[key] = val
# end
# def key?(key)
# @set.each do |o|
# if o.key? key
# return true
# end
# end
# @default.key? key
# end
# def merge!(o)
# o.each do |k,v|
# @cur[k]= v
# end
# end
# def flatten
# options = {}
# @set.each do |o|
# o.each do |k,v|
# options[k] ||= v
# end
# end
# options
# end
# def explain
# indent = ""
# @set.each do |o|
# o.keys.sort.each do |k|
# puts "#{indent}#{k}: #{o[k].inspect}"
# end
# indent = " #{indent}"
# end
# end
# def force_defaults
# @defaults.each do |k,v|
# if v.respond_to? :call
# @defaults[k] = v.call
# end
# end
# end
# end
class UserFileDefaultOptions
def initialize(user_options, default_options)
@user_options = user_options
@file_options = {}
@default_options = default_options
end
attr_reader :user_options, :file_options, :default_options
def [](key)
return user_options[key] if user_options.key?(key)
return file_options[key] if file_options.key?(key)
return default_options[key] if default_options.key?(key)
end
def []=(key, value)
user_options[key] = value
end
def all_of(key)
user = user_options[key]
file = file_options[key]
default = default_options[key]
user = [user] unless user.is_a?(Array)
file = [file] unless file.is_a?(Array)
default = [default] unless default.is_a?(Array)
user.compact!
file.compact!
default.compact!
user + file + default
end
def force_defaults
@default_options.each do |k,v|
if v.respond_to? :call
@default_options[k] = v.call
end
end
end
end
class Configuration
include ConfigDefault
def self.from_file(path)
cfg = new
@dsl._load_from(path)
return cfg
end
def initialize(options={}, &blk)
@options = UserFileDefaultOptions.new(options, self.default_options)
@plugins = PluginLoader.new
@dsl = DSL.new(@options.file_options, self)
if blk
configure(&blk)
end
end
attr_reader :options, :plugins
def configure(&blk)
@dsl._run(&blk)
end
def initialize_copy(other)
@conf = nil
@cli_options = nil
@options = @options.dup
end
def flatten
dup.flatten!
end
def flatten!
@options = @options.flatten
self
end
def default_options
{
:min_threads => 0,
:max_threads => 16,
:log_requests => false,
:debug => false,
:binds => ["tcp://#{DefaultTCPHost}:#{DefaultTCPPort}"],
:workers => 0,
:daemon => false,
:mode => :http,
:worker_timeout => DefaultWorkerTimeout,
:worker_boot_timeout => DefaultWorkerTimeout,
:worker_shutdown_timeout => DefaultWorkerShutdownTimeout,
:remote_address => :socket,
:tag => method(:infer_tag),
:environment => ->{ ENV['RACK_ENV'] || "development" },
:rackup => DefaultRackup,
:logger => STDOUT,
:persistent_timeout => Const::PERSISTENT_TIMEOUT
}
end
def load
files = @options.all_of(:config_files)
if files.empty?
imp = %W(config/puma/#{@options[:environment]}.rb config/puma.rb).find { |f|
File.exist?(f)
}
files << imp
elsif files == ["-"]
files = []
end
files.each do |f|
@dsl.load(f)
end
@options
end
# Call once all configuration (included from rackup files)
# is loaded to flesh out any defaults
def clamp
@options.force_defaults
end
# Injects the Configuration object into the env
class ConfigMiddleware
def initialize(config, app)
@config = config
@app = app
end
def call(env)
env[Const::PUMA_CONFIG] = @config
@app.call(env)
end
end
# Indicate if there is a properly configured app
#
def app_configured?
@options[:app] || File.exist?(rackup)
end
def rackup
@options[:rackup]
end
# Load the specified rackup file, pull options from
# the rackup file, and set @app.
#
def app
found = options[:app] || load_rackup
if @options[:mode] == :tcp
require 'puma/tcp_logger'
logger = @options[:logger]
quiet = !@options[:log_requests]
return TCPLogger.new(logger, found, quiet)
end
if @options[:log_requests]
require 'puma/commonlogger'
logger = @options[:logger]
found = CommonLogger.new(found, logger)
end
ConfigMiddleware.new(self, found)
end
# Return which environment we're running in
def environment
@options[:environment]
end
def load_plugin(name)
@plugins.create name
end
def run_hooks(key, arg)
@options.all_of(key).each { |b| b.call arg }
end
def self.temp_path
require 'tmpdir'
t = (Time.now.to_f * 1000).to_i
"#{Dir.tmpdir}/puma-status-#{t}-#{$$}"
end
private
def infer_tag
File.basename(Dir.getwd)
end
# Load and use the normal Rack builder if we can, otherwise
# fallback to our minimal version.
def rack_builder
# Load bundler now if we can so that we can pickup rack from
# a Gemfile
if ENV.key? 'PUMA_BUNDLER_PRUNED'
begin
require 'bundler/setup'
rescue LoadError
end
end
begin
require 'rack'
require 'rack/builder'
rescue LoadError
# ok, use builtin version
return Puma::Rack::Builder
else
return ::Rack::Builder
end
end
def load_rackup
raise "Missing rackup file '#{rackup}'" unless File.exist?(rackup)
rack_app, rack_options = rack_builder.parse_file(rackup)
@options.file_options.merge!(rack_options)
config_ru_binds = []
rack_options.each do |k, v|
config_ru_binds << v if k.to_s.start_with?("bind")
end
@options.file_options[:binds] = config_ru_binds unless config_ru_binds.empty?
rack_app
end
def self.random_token
begin
require 'openssl'
rescue LoadError
end
count = 16
bytes = nil
if defined? OpenSSL::Random
bytes = OpenSSL::Random.random_bytes(count)
elsif File.exist?("/dev/urandom")
File.open('/dev/urandom') { |f| bytes = f.read(count) }
end
if bytes
token = ""
bytes.each_byte { |b| token << b.to_s(16) }
else
token = (0..count).to_a.map { rand(255).to_s(16) }.join
end
return token
end
end
end
require 'puma/dsl'