kemal/src/kemal.cr

87 lines
2.1 KiB
Crystal

require "http"
require "json"
require "uri"
require "tempfile"
require "./kemal/*"
require "./kemal/ext/*"
require "./kemal/helpers/*"
module Kemal
# Overload of `self.run` with the default startup logging.
def self.run(port : Int32?)
self.run port do
log "[#{config.env}] Kemal is ready to lead at #{config.scheme}://#{config.host_binding}:#{config.port}"
end
end
# Overload of `self.run` without port.
def self.run
self.run(nil)
end
# Overload of `self.run` to allow just a block.
def self.run(&block)
self.run nil, &block
end
# The command to run a `Kemal` application.
#
# If *port* is not given Kemal will use `Kemal::Config#port`
def self.run(port : Int32? = nil, &block)
Kemal::CLI.new
config = Kemal.config
config.setup
config.port = port if port
unless Kemal.config.error_handlers.has_key?(404)
error 404 do
render_404
end
end
# Test environment doesn't need to have signal trap, built-in images, and logging.
unless config.env == "test"
Signal::INT.trap do
log "Kemal is going to take a rest!" if config.shutdown_message
Kemal.stop
exit
end
# This route serves the built-in images for not_found and exceptions.
get "/__kemal__/404.png" do |env|
file_path = File.expand_path("lib/kemal/images/404.png", Dir.current)
if File.exists? file_path
send_file env, file_path
else
halt env, 404
end
end
end
config.server ||= HTTP::Server.new(config.host_binding, config.port, config.handlers)
{% if !flag?(:without_openssl) %}
config.server.not_nil!.tls = config.ssl
{% end %}
config.running = true
yield config
config.server.not_nil!.listen if config.env != "test" && config.server
end
def self.stop
if config.running
if config.server
config.server.not_nil!.close
config.running = false
else
raise "Kemal.config.server is not set. Please use Kemal.run to set the server."
end
else
raise "Kemal is already stopped."
end
end
end