about summary refs log tree commit diff
path: root/app/controllers/auth/sessions_controller.rb
blob: 839e9bdb93251cd4dcd516486b6d3c2f1bc4db75 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
# frozen_string_literal: true

class Auth::SessionsController < Devise::SessionsController
  include Devise::Controllers::Rememberable

  layout 'auth'

  skip_before_action :require_no_authentication, only: [:create]
  skip_before_action :require_functional!
  skip_before_action :update_user_sign_in

  prepend_before_action :set_pack

  include TwoFactorAuthenticationConcern
  include SignInTokenAuthenticationConcern

  before_action :set_instance_presenter, only: [:new]
  before_action :set_body_classes

  def new
    Devise.omniauth_configs.each do |provider, config|
      return redirect_to(omniauth_authorize_path(resource_name, provider)) if config.strategy.redirect_at_sign_in
    end

    super
  end

  def create
    super do |resource|
      # We only need to call this if this hasn't already been
      # called from one of the two-factor or sign-in token
      # authentication methods

      on_authentication_success(resource, :password) unless @on_authentication_success_called
    end
  end

  def destroy
    tmp_stored_location = stored_location_for(:user)
    super
    session.delete(:challenge_passed_at)
    flash.delete(:notice)
    store_location_for(:user, tmp_stored_location) if continue_after?
  end

  def webauthn_options
    user = User.find_by(id: session[:attempt_user_id])

    if user&.webauthn_enabled?
      options_for_get = WebAuthn::Credential.options_for_get(
        allow: user.webauthn_credentials.pluck(:external_id),
        user_verification: 'discouraged'
      )

      session[:webauthn_challenge] = options_for_get.challenge

      render json: options_for_get, status: :ok
    else
      render json: { error: t('webauthn_credentials.not_enabled') }, status: :unauthorized
    end
  end

  protected

  def find_user
    if user_params[:email].present?
      find_user_from_params
    elsif session[:attempt_user_id]
      User.find_by(id: session[:attempt_user_id])
    end
  end

  def find_user_from_params
    user   = User.authenticate_with_ldap(user_params) if Devise.ldap_authentication
    user ||= User.authenticate_with_pam(user_params) if Devise.pam_authentication
    user ||= User.find_for_authentication(email: user_params[:email])
    user
  end

  def user_params
    params.require(:user).permit(:email, :password, :otp_attempt, :sign_in_token_attempt, credential: {})
  end

  def after_sign_in_path_for(resource)
    last_url = stored_location_for(:user)

    if home_paths(resource).include?(last_url)
      root_path
    else
      last_url || root_path
    end
  end

  def after_sign_out_path_for(_resource_or_scope)
    Devise.omniauth_configs.each_value do |config|
      return root_path if config.strategy.redirect_at_sign_in
    end

    super
  end

  def require_no_authentication
    super

    # Delete flash message that isn't entirely useful and may be confusing in
    # most cases because /web doesn't display/clear flash messages.
    flash.delete(:alert) if flash[:alert] == I18n.t('devise.failure.already_authenticated')
  end

  private

  def set_pack
    use_pack 'auth'
  end

  def set_instance_presenter
    @instance_presenter = InstancePresenter.new
  end

  def set_body_classes
    @body_classes = 'lighter'
  end

  def home_paths(resource)
    paths = [about_path]

    if single_user_mode? && resource.is_a?(User)
      paths << short_account_path(username: resource.account)
    end

    paths
  end

  def continue_after?
    truthy_param?(:continue)
  end

  def restart_session
    clear_attempt_from_session
    redirect_to new_user_session_path, alert: I18n.t('devise.failure.timeout')
  end

  def set_attempt_session(user)
    session[:attempt_user_id]         = user.id
    session[:attempt_user_updated_at] = user.updated_at.to_s
  end

  def clear_attempt_from_session
    session.delete(:attempt_user_id)
    session.delete(:attempt_user_updated_at)
  end

  def on_authentication_success(user, security_measure)
    @on_authentication_success_called = true

    clear_attempt_from_session

    user.update_sign_in!(request, new_sign_in: true)
    remember_me(user)
    sign_in(user)
    flash.delete(:notice)

    LoginActivity.create(
      user: user,
      success: true,
      authentication_method: security_measure,
      ip: request.remote_ip,
      user_agent: request.user_agent
    )
  end

  def on_authentication_failure(user, security_measure, failure_reason)
    LoginActivity.create(
      user: user,
      success: false,
      authentication_method: security_measure,
      failure_reason: failure_reason,
      ip: request.remote_ip,
      user_agent: request.user_agent
    )
  end
end