Class: LS4::HTTPGatewayService

Inherits:
Service show all
Defined in:
lib/ls4/service/gw_http.rb

Defined Under Namespace

Classes: Responder

Constant Summary collapse

DEFAULT_FORMAT = 
'json'
DEFAULT_TEMPLATE = 
<<EOF
<html>
<head>
<title><%= code %> <%= title %></title>
</head>
<body>
<center><h1><%= code %> <%= title %></h1></center>
<hr>
<center>LS4 <%= LS4::VERSION %></center>
</body>
</html>
EOF

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Service

init

Methods included from EventBus::SingletonMixin

#ebus_bind!, #ebus_connect, extended

Methods included from EventBus::BusMixin

#ebus_all_slots, #ebus_disconnect!

Methods included from EventBus::DeclarerBase::Methods

#connect, #ebus_all_slots, #ebus_call_log, #ebus_call_slots, #ebus_signal_error, #ebus_signal_log, #ebus_signal_slots

Methods included from EventBus::DeclarerBase

#call_slot, #signal_slot

Constructor Details

#initialize ⇒ HTTPGatewayService

Returns a new instance of HTTPGatewayService.



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# File 'lib/ls4/service/gw_http.rb', line 46

def initialize
	@thread = nil
	@server = nil
end

Class Method Details

.open! ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 22

def self.open!
	require 'rack'
	require 'webrick'
	require 'erb'
	require 'json'
	require 'thread'
	instance.init(ConfigBus.http_gateway_address, ConfigBus.http_gateway_error_template_file)
end

Instance Method Details

#call_attrs(env) ⇒ Object

attrs/<key>

get(data/key)         => get_attrs
   vtime=i            => gett_attrs
   vname=s            => getv_attrs
   format=json/msgpack/tsv

post(attrs/key, json) => update_attrs

put(attrs/key, json)  => update_attrs

TODO delete(data/key)



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# File 'lib/ls4/service/gw_http.rb', line 225

def call_attrs(env)
	case env['REQUEST_METHOD']
	when 'GET'
		http_attrs_get(env)
	when 'POST'
		http_attrs_post(env)
	when 'PUT'
		http_attrs_put(env)
	else
		return html_response(405, 'Method Not Allowed')
	end
end

#call_data(env) ⇒ Object

data/<key>

get(data/key)         => get_data
   vtime=i            => gett_data
   vname=s            => getv_data

post(data/key, data) => add_data

   vname=s            => addv_data
   attrs=formated     => add/addv
   format=json/msgpack/tsv
put(data/key, data)   => add_data
   vname=s            => addv_data
   attrs=formated     => add/addv
   format=json/msgpack/tsv

TODO delete(data/key)



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# File 'lib/ls4/service/gw_http.rb', line 93

def call_data(env)
	case env['REQUEST_METHOD']
	when 'GET'
		http_data_get(env)
	when 'POST'
		http_data_post(env)
	when 'PUT'
		http_data_put(env)
	else
		return html_response(405, 'Method Not Allowed')
	end
end

#call_direct(env) ⇒ Object

direct/<rsid>/<vtime>/<key> => get_direct



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# File 'lib/ls4/service/gw_http.rb', line 618

def call_direct(env)
	case env['REQUEST_METHOD']
	when 'GET'
		http_direct_get(env)
	else
		return html_response(405, 'Method Not Allowed')
	end
end

#call_redirect(env) ⇒ Object

redirect/<key>

get(data/key)         => url
   vtime=i            => urlt
   vname=s            => urlv



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# File 'lib/ls4/service/gw_http.rb', line 330

def call_redirect(env)
	case env['REQUEST_METHOD']
	when 'GET'
		http_redirect_get(env)
	else
		return html_response(405, 'Method Not Allowed')
	end
end

#call_rpc(env) ⇒ Object

api/<cmd>

get(api/cmd?k=v)

post(api/cmd?k=v)

cmd:
  get_data      key= [vtime=] [vname=]
  get_attrs     key= [vtime=] [vname=] [format=]
  add           key= [vname=] data= [attrs= [format=]]
  add_data      (alias of add)
  update_attrs  key= attrs= [format=]
  delete        key= [vtimie=] [vname=]
  remove        key=
  url           key= [vtime=] [vname=]



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# File 'lib/ls4/service/gw_http.rb', line 386

def call_rpc(env)
	m = env['REQUEST_METHOD']
	if m != 'GET' && m != 'POST'
		return html_response(405, 'Method Not Allowed')
	end
	case get_cmd_path_info(env)
	when 'get_data'
		http_rpc_get_data(env)
	when 'get_attrs'
		http_rpc_get_attrs(env)
	when 'add'
		http_rpc_add(env)
	when 'add_data'
		http_rpc_add(env)
	when 'update_attrs'
		http_rpc_update_attrs(env)
	when 'delete'
		http_rpc_delete(env)
	when 'remove'
		http_rpc_remove(env)
	when 'url'
		http_rpc_url(env)
	else
		return html_response(406, 'Not Acceptable Method')
	end
end

#http_attrs_get(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 238

def http_attrs_get(env)
	request = ::Rack::Request.new(env)
	key = get_key_path_info(env)
	format = optional_str(request, 'format')
	format ||= DEFAULT_FORMAT
	vtime = optional_int(request, 'vtime')
	if vtime
		check_request(request, %w[format vtime])
	else
		vname = optional_str(request, 'vname')
		check_request(request, %w[format vname])
	end

	if vtime
		attrs = submit(GWRPCBus, :gett_attrs, vtime, key)
	elsif vname
		attrs = submit(GWRPCBus, :getv_attrs, vname, key)
	else
		attrs = submit(GWRPCBus, :get_attrs, key)
	end

	if attrs
		attrs, ct = format_attrs(attrs, format)
		unless attrs
			return html_response(400, 'Bad Request', "unknown format `#{format}'")
		end
		body = [attrs]
		return [200, {'Content-Type'=>ct}, body]
	else
		if vtime
			return html_response(404, 'Not Found', "key=`#{key}' vtime=#{vtime}")
		elsif vname
			return html_response(404, 'Not Found', "key=`#{key}' vname=#{vname}")
		else
			return html_response(404, 'Not Found', "key=`#{key}'")
		end
	end
end

#http_attrs_post(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 277

def http_attrs_post(env)
	request = ::Rack::Request.new(env)
	key = get_key_path_info(env)
	attrs = require_str(request, 'attrs')
	format = optional_str(request, 'format')
	format ||= DEFAULT_FORMAT
	check_request(request, %w[attrs format])

	attrs = parse_attrs(attrs, format)
	unless attrs
		return html_response(400, 'Bad Request', "unknown format `#{format}'")
	end

	okey = submit(GWRPCBus, :update_attrs, key, attrs)

	if okey
		return html_response(200, 'OK')
	else
		return html_response(404, 'Not Found', "key=`#{key}'")
	end
end

#http_attrs_put(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 299

def http_attrs_put(env)
	if env['HTTP_EXPECT'] == '100-continue'
		return html_response(417, 'Exception Failed')
	end

	request = ::Rack::Request.new(env)
	key = get_key_path_info(env)
	format = optional_str(request, 'format')
	format ||= DEFAULT_FORMAT
	check_request(request, %w[format])

	attrs = env['rack.input'].read
	attrs = parse_attrs(attrs, format)
	unless attrs
		return html_response(400, 'Bad Request', "unknown format `#{format}'")
	end

	okey = submit(GWRPCBus, :update_attrs, key, attrs)

	if okey
		return html_response(202, 'Accepted')
	else
		return html_response(404, 'Not Found', "key=`#{key}'")
	end
end

#http_data_get(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 106

def http_data_get(env)
	request = ::Rack::Request.new(env)
	key = get_key_path_info(env)
	vtime = optional_int(request, 'vtime')
	if vtime
		check_request(request, %w[vtime])
	else
		vname = optional_str(request, 'vname')
		check_request(request, %w[vname])
	end

	if vtime
		data = submit(GWRPCBus, :gett_data, vtime, key)
	elsif vname
		data = submit(GWRPCBus, :getv_data, vname, key)
	else
		data = submit(GWRPCBus, :get_data, key)
	end

	if data
		body = [data]
		return [200, {'Content-Type'=>'application/octet-stream'}, body]
	else
		if vtime
			return html_response(404, 'Not Found', "key=`#{key}' vtime=#{vtime}")
		elsif vname
			return html_response(404, 'Not Found', "key=`#{key}' vname=#{vname}")
		else
			return html_response(404, 'Not Found', "key=`#{key}'")
		end
	end
end

#http_data_post(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 139

def http_data_post(env)
	request = ::Rack::Request.new(env)
	key = get_key_path_info(env)
	data = require_str(request, 'data')
	vname = optional_str(request, 'vname')
	attrs = optional_str(request, 'attrs')
	if attrs
		format = optional_str(request, 'format')
		format ||= DEFAULT_FORMAT
		check_request(request, %w[data vname attrs format])
	else
		check_request(request, %w[data vname])
	end

	if attrs
		attrs = parse_attrs(attrs, format)
		unless attrs
			return html_response(400, 'Bad Request', "unknown format `#{format}'")
		end
		if vname
			okey = submit(GWRPCBus, :addv, vname, key, data, attrs)
		else
			okey = submit(GWRPCBus, :add, key, data, attrs)
		end
	else
		if vname
			okey = submit(GWRPCBus, :addv_data, vname, key, data)
		else
			okey = submit(GWRPCBus, :add_data, key, data)
		end
	end

	# FIXME return okey?
	return html_response(200, 'OK')
end

#http_data_put(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 175

def http_data_put(env)
	if env['HTTP_EXPECT'] == '100-continue'
		return html_response(417, 'Exception Failed')
	end

	request = ::Rack::Request.new(env)
	key = get_key_path_info(env)
	vname = optional_str(request, 'vname')
	attrs = optional_str(request, 'attrs')
	if attrs
		format = optional_str(request, 'format')
		format ||= DEFAULT_FORMAT
		check_request(request, %w[vname attrs format])
	else
		check_request(request, %w[vname])
	end

	data = env['rack.input'].read

	if attrs
		attrs = parse_attrs(attrs, format)
		unless attrs
			return html_response(400, 'Bad Request', "unknown format `#{format}'")
		end
		if vname
			okey = submit(GWRPCBus, :addv, vname, key, data, attrs)
		else
			okey = submit(GWRPCBus, :add, key, data, attrs)
		end
	else
		if vname
			okey = submit(GWRPCBus, :addv_data, vname, key, data)
		else
			okey = submit(GWRPCBus, :add_data, key, data)
		end
	end

	# FIXME return okey?
	return html_response(202, 'Accepted')
end

#http_direct_get(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 627

def http_direct_get(env)
	request = ::Rack::Request.new(env)
	path = get_key_path_info(env)
	rsid, vtime, key = path.split('/', 3)
	rsid = rsid.to_i
	vtime = vtime.to_i

	check_request(request, %w[])

	okey = ObjectKey.new(key, vtime, rsid)
	data = submit(DSRPCBus, :get_direct, okey)

	if data
		body = [data]
		return [200, {'Content-Type'=>'application/octet-stream'}, body]
	else
		return html_response(404, 'Not Found', "rsid=#{rsid} key=`#{key}' vtime=#{vtime}")
	end
end

#http_redirect_get(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 339

def http_redirect_get(env)
	request = ::Rack::Request.new(env)
	key = get_key_path_info(env)
	vtime = optional_int(request, 'vtime')
	if vtime
		check_request(request, %w[vtime])
	else
		vname = optional_str(request, 'vname')
		check_request(request, %w[vname])
	end

	if vtime
		url = submit(GWRPCBus, :urlt, vtime, key)
	elsif vname
		url = submit(GWRPCBus, :urlv, vname, key)
	else
		url = submit(GWRPCBus, :url, key)
	end

	if url
		body = [url]
		return [302, {'Content-Type'=>'text/plain', 'Location'=>url}, body]
	else
		if vtime
			return html_response(404, 'Not Found', "key=`#{key}' vtime=#{vtime}")
		elsif vname
			return html_response(404, 'Not Found', "key=`#{key}' vname=#{vname}")
		else
			return html_response(404, 'Not Found', "key=`#{key}'")
		end
	end
end

#http_rpc_add(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 485

def http_rpc_add(env)
	request = ::Rack::Request.new(env)
	key = require_str(request, 'key')
	data = require_str(request, 'data')
	vname = optional_str(request, 'vname')
	attrs = optional_str(request, 'attrs')
	if attrs
		format = optional_str(request, 'format')
		format ||= DEFAULT_FORMAT
		check_request(request, %w[key vname data attrs format])
	else
		check_request(request, %w[key vname data])
	end

	if attrs
		attrs = parse_attrs(attrs, format)
		unless attrs
			return html_response(400, 'Bad Request', "unknown format `#{format}'")
		end
		if vname
			okey = submit(GWRPCBus, :addv, vname, key, data, attrs)
		else
			okey = submit(GWRPCBus, :add, key, data, attrs)
		end
	else
		if vname
			okey = submit(GWRPCBus, :addv_data, vname, key, data)
		else
			okey = submit(GWRPCBus, :add_data, key, data)
		end
	end

	# FIXME return okey?
	return html_response(200, 'OK')
end

#http_rpc_delete(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 543

def http_rpc_delete(env)
	request = ::Rack::Request.new(env)
	key = require_str(request, 'key')
	vtime = optional_int(request, 'vtime')
	if vtime
		check_request(request, %w[key vtime])
	else
		vname = optional_str(request, 'vname')
		check_request(request, %w[key vname])
	end

	if vtime
		deleted = submit(GWRPCBus, :deletet, vtime, key)
	elsif vname
		deleted = submit(GWRPCBus, :deletev, vname, key)
	else
		deleted = submit(GWRPCBus, :delete, key)
	end

	if deleted
		return html_response(200, 'OK')
	else
		return html_response(404, 'Not Found', "key=`#{key}'")
	end
end

#http_rpc_get_attrs(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 446

def http_rpc_get_attrs(env)
	request = ::Rack::Request.new(env)
	key = require_str(request, 'key')
	format = optional_str(request, 'format')
	format ||= DEFAULT_FORMAT
	vtime = optional_int(request, 'vtime')
	if vtime
		check_request(request, %w[format vtime])
	else
		vname = optional_str(request, 'vname')
		check_request(request, %w[format vname])
	end

	if vtime
		attrs = submit(GWRPCBus, :gett_attrs, vtime, key)
	elsif vname
		attrs = submit(GWRPCBus, :getv_attrs, vname, key)
	else
		attrs = submit(GWRPCBus, :get_attrs, key)
	end

	if attrs
		attrs, ct = format_attrs(attrs, format)
		unless attrs
			return html_response(400, 'Bad Request', "unknown format `#{format}'")
		end
		body = [attrs]
		return [200, {'Content-Type'=>ct}, body]
	else
		if vtime
			return html_response(404, 'Not Found', "key=`#{key}' vtime=#{vtime}")
		elsif vname
			return html_response(404, 'Not Found', "key=`#{key}' vname=#{vname}")
		else
			return html_response(404, 'Not Found', "key=`#{key}'")
		end
	end
end

#http_rpc_get_data(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 413

def http_rpc_get_data(env)
	request = ::Rack::Request.new(env)
	key = require_str(request, 'key')
	vtime = optional_int(request, 'vtime')
	if vtime
		check_request(request, %w[key vtime])
	else
		vname = optional_str(request, 'vname')
		check_request(request, %w[key vname])
	end

	if vtime
		data = submit(GWRPCBus, :gett_data, vtime, key)
	elsif vname
		data = submit(GWRPCBus, :getv_data, vname, key)
	else
		data = submit(GWRPCBus, :get_data, key)
	end

	if data
		body = [data]
		return [200, {'Content-Type'=>'application/octet-stream'}, body]
	else
		if vtime
			return html_response(404, 'Not Found', "key=`#{key}' vtime=#{vtime}")
		elsif vname
			return html_response(404, 'Not Found', "key=`#{key}' vname=#{vname}")
		else
			return html_response(404, 'Not Found', "key=`#{key}'")
		end
	end
end

#http_rpc_remove(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 569

def http_rpc_remove(env)
	request = ::Rack::Request.new(env)
	key = require_str(request, 'key')
	check_request(request, %w[key])

	removed = submit(GWRPCBus, :remove, key)

	if removed
		return html_response(200, 'OK')
	else
		return html_response(404, 'Not Found', "key=`#{key}'")
	end
end

#http_rpc_update_attrs(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 521

def http_rpc_update_attrs(env)
	request = ::Rack::Request.new(env)
	key = require_str(request, 'key')
	attrs = require_str(request, 'attrs')
	format = optional_str(request, 'format')
	format ||= DEFAULT_FORMAT
	check_request(request, %w[attrs format])

	attrs = parse_attrs(attrs, format)
	unless attrs
		return html_response(400, 'Bad Request', "unknown format `#{format}'")
	end

	okey = submit(GWRPCBus, :update_attrs, key, attrs)

	if okey
		return html_response(200, 'OK')
	else
		return html_response(404, 'Not Found', "key=`#{key}'")
	end
end

#http_rpc_url(env) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 583

def http_rpc_url(env)
	request = ::Rack::Request.new(env)
	key = require_str(request, 'key')
	vtime = optional_int(request, 'vtime')
	if vtime
		check_request(request, %w[key vtime])
	else
		vname = optional_str(request, 'vname')
		check_request(request, %w[key vname])
	end

	if vtime
		url = submit(GWRPCBus, :urlt, vtime, key)
	elsif vname
		url = submit(GWRPCBus, :urlv, vname, key)
	else
		url = submit(GWRPCBus, :url, key)
	end

	if url
		body = [url]
		return [200, {'Content-Type'=>'text/plain'}, body]
	else
		if vtime
			return html_response(404, 'Not Found', "key=`#{key}' vtime=#{vtime}")
		elsif vname
			return html_response(404, 'Not Found', "key=`#{key}' vname=#{vname}")
		else
			return html_response(404, 'Not Found', "key=`#{key}'")
		end
	end
end

#init(addr, tmplfile) ⇒ Object 



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# File 'lib/ls4/service/gw_http.rb', line 51

def init(addr, tmplfile)
	if tmplfile
		erb = File.read(tmplfile)
	else
		erb = DEFAULT_TEMPLATE
	end
	@erb = ERB.new(erb)

	opt = {
		:BindAddress => addr.host,
		:Port => addr.port,
	}
	@server = ::WEBrick::HTTPServer.new(opt)
	me = self

	app = ::Rack::URLMap.new({
		'/data'     => Proc.new {|env| me.call_data(env)     },
		'/attrs'    => Proc.new {|env| me.call_attrs(env)    },
		'/api'      => Proc.new {|env| me.call_rpc(env)      },
		'/direct'   => Proc.new {|env| me.call_direct(env)   },
		'/redirect' => Proc.new {|env| me.call_redirect(env) },
	})

	@server.mount("/", ::Rack::Handler::WEBrick, app)
	@thread = Thread.new do
		@server.start
	end
end