WIP of prototype authd using IPC instead of HTTP.

This commit is contained in:
Luka Vandervelden 2018-10-10 04:46:34 +09:00
parent abc364e212
commit d1e9445a11

117
src/main-ipc.cr Normal file
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require "uuid"
require "option_parser"
require "ipc"
require "jwt"
require "pg"
require "crecto"
require "./user.cr"
authd_db_name = "authd"
authd_db_hostname = "localhost"
authd_db_user = "user"
authd_db_password = "nico-nico-nii"
authd_jwt_key = "nico-nico-nii"
OptionParser.parse! do |parser|
parser.on "-d name", "--database-name name", "Database name." do |name|
authd_db_name = name
end
parser.on "-u name", "--database-username user", "Database user." do |name|
authd_db_user = name
end
parser.on "-a host", "--hostname host", "Database host name." do |host|
authd_db_hostname = host
end
parser.on "-P file", "--password-file file", "Password file." do |file_name|
authd_db_password = File.read(file_name).chomp
end
parser.on "-K file", "--key-file file", "JWT key file" do |file_name|
authd_jwt_key = File.read(file_name).chomp
end
end
class AuthD::Message
enum RequestTypes
TOKEN_REQUEST
end
enum ResponseTypes
ALL_OK
INVALID_FORMAT
INVALID_CREDENTIALS
end
JSON.mapping({
username: String,
password: String,
})
end
module DataBase
extend Crecto::Repo
end
DataBase.config do |conf|
conf.adapter = Crecto::Adapters::Postgres
conf.hostname = authd_db_hostname
conf.database = authd_db_name
conf.username = authd_db_user
conf.password = authd_db_password
end
# Dummy query to check DB connection is possible.
begin
DataBase.all AuthD::User, Crecto::Repo::Query.new
rescue e
puts "Database connection failed: #{e.message}"
exit 0
end
authd = IPC::Service.new("authd").loop do |event|
p event.class
if event.is_a? IPC::Event::Message
payload = JSON.parse(event.message.payload).as_h?
if payload.nil?
event.client.send AuthD::Message::ResponseTypes::INVALID_FORMAT.to_u8, "Input is not a JSON object."
next
end
username = payload["username"]?.try &.as_s?
password = payload["password"]?.try &.as_s?
if username.nil?
event.client.send AuthD::Message::ResponseTypes::INVALID_FORMAT.to_u8, "Missing username."
next
end
if password.nil?
event.client.send AuthD::Message::ResponseTypes::INVALID_FORMAT.to_u8, "Missing password."
next
end
# FIXME: Huge pitfall here. Somehow doesnt compile without, but that should be its type already, so…?
username = username.as String
password = password.as String
user = DataBase.get_by AuthD::User, username: username, password: password
if user.nil?
event.client.send AuthD::Message::ResponseTypes::INVALID_CREDENTIALS.to_u8, "Invalid credentials.."
next
end
event.client.send AuthD::Message::ResponseTypes::ALL_OK.to_u8, JWT.encode(user.to_h, authd_jwt_key, "HS255")
end
end
authd.close # Not exactly required because an at_exit{} is added, but…