Initial commit

models/userdata.rb

@@ -0,0 +1,152 @@
+require 'i18n'
+require_relative 'users'
+
+class UserSessionData
+  attr_accessor :user_info, :error
+
+  def initialize(name, password, init = nil)
+    @user_info = nil
+    @error = nil
+    if init.nil?
+      user = get_user(name, password)
+      if user
+        @user_info = user
+      else
+        @error = I18n.t('errors.invalid_username_password')
+      end
+    end
+  end
+
+  def auth?
+    !@user_info.nil?
+  end
+
+  def role
+    if auth?
+      @user_info[:role]
+    else
+      -1
+    end
+  end
+
+  def user_info
+    @user_info
+  end
+
+  def add_user(name, password, email, role)
+    @error = nil
+    user = User.where(login: name).first
+    if user
+      @error = I18n.t('errors.user_already_exists')
+    else
+      User.create(login: name, password: Digest::SHA256.hexdigest(password.strip), email: email, role: role)
+    end
+  end
+
+  def list_users()
+    User.order(Sequel.asc(:login)).all
+  end
+
+  def user_info(name, id = nil)
+    @error = nil
+    if name.nil? && id.nil?
+      @error = I18n.t('errors.search_parameters_not_set')
+      retrun nil
+    end
+    user = nil
+    if id.nil?
+      user = User.where(login: name).first
+    else
+      user = User.where(id: id).first
+    end
+    if user
+      user
+    else
+      @error = I18n.t('errors.user_not_found')
+      nil
+    end
+  end
+
+  def del_user(name, id = nil)
+    @error = nil
+    if name.nil? && id.nil?
+      @error = I18n.t('errors.search_parameters_not_set')
+      return
+    end
+    user = nil
+    if id.nil?
+      user = User.where(login: name).first
+    else
+      user = User.where(id: id).first
+    end
+    if user
+      user.delete
+    else
+      @error = I18n.t('errors.user_not_found')
+    end
+  end
+
+  def update_user(name, password, email, role, id = nil)
+    @error = nil
+    if name.nil? && id.nil?
+      @error = I18n.t('errors.search_parameters_not_set')
+      return
+    end
+    user = nil
+    if id.nil?
+      user = User.where(login: name).first
+    else
+      user = User.where(id: id).first
+    end
+    if user
+      changes = {}
+      changes[:password] = Digest::SHA256.hexdigest(password) unless password.nil? || password.empty?
+      changes[:email] = email unless email.nil? || email.empty?
+      changes[:role] = case role.to_i
+                        when 0 then 0
+                        when 1 then 1
+                        when 2 then 2
+                        else user[:role]
+                        end
+      user.update(changes) unless changes.empty?
+    else
+      @error = I18n.t('errors.user_not_found')
+    end
+  end
+
+  def err
+    @error
+  end
+
+  def tok
+    @user_info.nil?
+  end
+
+  def login
+    @user_info[:login]
+  end
+
+  # Методы для сериализации и десериализации объекта в JWT токене
+  def serialize
+    { user_info: @user_info.to_hash, error: @error }.to_json
+  end
+
+  def self.deserialize(token)
+    data = JSON.parse(token, symbolize_names: true)
+    instance = new(nil, nil, true)
+    user_data = data[:user_info]
+
+    instance.instance_variable_set(:@user_info, user_data)
+    instance.instance_variable_set(:@error, data[:error])
+    instance
+  end
+
+  private
+
+  def get_user(name, password)
+    user = User.where(login: name).first
+    return unless user && user[:password] == Digest::SHA256.hexdigest(password)
+
+    user
+  end
+end