debian-mirror-gitlab/app/controllers/omniauth_callbacks_controller.rb

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# frozen_string_literal: true
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class OmniauthCallbacksController < Devise::OmniauthCallbacksController
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include AuthenticatesWithTwoFactor
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include Devise::Controllers::Rememberable
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protect_from_forgery except: [:kerberos, :saml, :cas3, :failure], with: :exception, prepend: true
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def handle_omniauth
omniauth_flow(Gitlab::Auth::OAuth)
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end
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AuthHelper.providers_for_base_controller.each do |provider|
alias_method provider, :handle_omniauth
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end
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# Extend the standard implementation to also increment
# the number of failed sign in attempts
def failure
if params[:username].present? && AuthHelper.form_based_provider?(failed_strategy.name)
user = User.by_login(params[:username])
user&.increment_failed_attempts!
end
super
end
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# Extend the standard message generation to accept our custom exception
def failure_message
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exception = request.env["omniauth.error"]
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error = exception.error_reason if exception.respond_to?(:error_reason)
error ||= exception.error if exception.respond_to?(:error)
error ||= exception.message if exception.respond_to?(:message)
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error ||= request.env["omniauth.error.type"].to_s
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error.to_s.humanize if error
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end
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def saml
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omniauth_flow(Gitlab::Auth::Saml)
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end
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def omniauth_error
@provider = params[:provider]
@error = params[:error]
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render 'errors/omniauth_error', layout: "oauth_error", status: 422
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end
def cas3
ticket = params['ticket']
if ticket
handle_service_ticket oauth['provider'], ticket
end
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handle_omniauth
end
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def authentiq
if params['sid']
handle_service_ticket oauth['provider'], params['sid']
end
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handle_omniauth
end
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def auth0
if oauth['uid'].blank?
fail_auth0_login
else
handle_omniauth
end
end
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private
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def omniauth_flow(auth_module, identity_linker: nil)
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if fragment = request.env.dig('omniauth.params', 'redirect_fragment').presence
store_redirect_fragment(fragment)
end
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if current_user
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log_audit_event(current_user, with: oauth['provider'])
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identity_linker ||= auth_module::IdentityLinker.new(current_user, oauth)
identity_linker.link
if identity_linker.changed?
redirect_identity_linked
elsif identity_linker.failed?
redirect_identity_link_failed(identity_linker.error_message)
else
redirect_identity_exists
end
else
sign_in_user_flow(auth_module::User)
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end
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end
def redirect_identity_exists
redirect_to after_sign_in_path_for(current_user)
end
def redirect_identity_link_failed(error_message)
redirect_to profile_account_path, notice: "Authentication failed: #{error_message}"
end
def redirect_identity_linked
redirect_to profile_account_path, notice: 'Authentication method updated'
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end
def handle_service_ticket(provider, ticket)
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Gitlab::Auth::OAuth::Session.create provider, ticket
session[:service_tickets] ||= {}
session[:service_tickets][provider] = ticket
end
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def build_auth_user(auth_user_class)
auth_user_class.new(oauth)
end
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def sign_in_user_flow(auth_user_class)
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auth_user = build_auth_user(auth_user_class)
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user = auth_user.find_and_update!
if auth_user.valid_sign_in?
log_audit_event(user, with: oauth['provider'])
set_remember_me(user)
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if user.two_factor_enabled? && !auth_user.bypass_two_factor?
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prompt_for_two_factor(user)
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else
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sign_in_and_redirect(user)
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end
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else
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fail_login(user)
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end
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rescue Gitlab::Auth::OAuth::User::SigninDisabledForProviderError
handle_disabled_provider
rescue Gitlab::Auth::OAuth::User::SignupDisabledError
handle_signup_error
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end
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def handle_signup_error
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label = Gitlab::Auth::OAuth::Provider.label_for(oauth['provider'])
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message = ["Signing in using your #{label} account without a pre-existing GitLab account is not allowed."]
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if Gitlab::CurrentSettings.allow_signup?
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message << "Create a GitLab account first, and then connect it to your #{label} account."
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end
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flash[:notice] = message.join(' ')
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redirect_to new_user_session_path
end
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def oauth
@oauth ||= request.env['omniauth.auth']
end
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def fail_login(user)
error_message = user.errors.full_messages.to_sentence
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return redirect_to omniauth_error_path(oauth['provider'], error: error_message)
end
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def fail_auth0_login
flash[:alert] = 'Wrong extern UID provided. Make sure Auth0 is configured correctly.'
redirect_to new_user_session_path
end
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def handle_disabled_provider
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label = Gitlab::Auth::OAuth::Provider.label_for(oauth['provider'])
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flash[:alert] = "Signing in using #{label} has been disabled"
redirect_to new_user_session_path
end
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def log_audit_event(user, options = {})
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AuditEventService.new(user, user, options)
.for_authentication.security_event
end
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def set_remember_me(user)
return unless remember_me?
if user.two_factor_enabled?
params[:remember_me] = '1'
else
remember_me(user)
end
end
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def remember_me?
request_params = request.env['omniauth.params']
(request_params['remember_me'] == '1') if request_params.present?
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end
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def store_redirect_fragment(redirect_fragment)
key = stored_location_key_for(:user)
location = session[key]
if uri = parse_uri(location)
uri.fragment = redirect_fragment
store_location_for(:user, uri.to_s)
end
end
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end