311 lines
8.9 KiB
Ruby
311 lines
8.9 KiB
Ruby
require_dependency 'rate_limiter'
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require_dependency 'single_sign_on'
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class SessionController < ApplicationController
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skip_before_filter :redirect_to_login_if_required
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skip_before_filter :preload_json, :check_xhr, only: ['sso', 'sso_login', 'become', 'sso_provider', 'destroy']
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def csrf
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render json: {csrf: form_authenticity_token }
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end
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def sso
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return_path = if params[:return_path]
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params[:return_path]
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elsif session[:destination_url]
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uri = URI::parse(session[:destination_url])
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"#{uri.path}#{uri.query ? "?" << uri.query : ""}"
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else
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path('/')
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end
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if SiteSetting.enable_sso?
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sso = DiscourseSingleSignOn.generate_sso(return_path)
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if SiteSetting.verbose_sso_logging
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Rails.logger.warn("Verbose SSO log: Started SSO process\n\n#{sso.diagnostics}")
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end
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redirect_to sso.to_url
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else
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render nothing: true, status: 404
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end
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end
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def sso_provider(payload=nil)
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payload ||= request.query_string
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if SiteSetting.enable_sso_provider
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sso = SingleSignOn.parse(payload, SiteSetting.sso_secret)
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if current_user
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sso.name = current_user.name
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sso.username = current_user.username
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sso.email = current_user.email
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sso.external_id = current_user.id.to_s
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sso.admin = current_user.admin?
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sso.moderator = current_user.moderator?
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if request.xhr?
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cookies[:sso_destination_url] = sso.to_url(sso.return_sso_url)
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else
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redirect_to sso.to_url(sso.return_sso_url)
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end
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else
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session[:sso_payload] = request.query_string
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redirect_to path('/login')
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end
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else
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render nothing: true, status: 404
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end
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end
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# For use in development mode only when login options could be limited or disabled.
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# NEVER allow this to work in production.
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def become
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raise Discourse::InvalidAccess.new unless Rails.env.development?
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user = User.find_by_username(params[:session_id])
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raise "User #{params[:session_id]} not found" if user.blank?
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log_on_user(user)
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redirect_to path("/")
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end
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def sso_login
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unless SiteSetting.enable_sso
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return render(nothing: true, status: 404)
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end
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sso = DiscourseSingleSignOn.parse(request.query_string)
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if !sso.nonce_valid?
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if SiteSetting.verbose_sso_logging
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Rails.logger.warn("Verbose SSO log: Nonce has already expired\n\n#{sso.diagnostics}")
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end
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return render(text: I18n.t("sso.timeout_expired"), status: 419)
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end
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if ScreenedIpAddress.should_block?(request.remote_ip)
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if SiteSetting.verbose_sso_logging
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Rails.logger.warn("Verbose SSO log: IP address is blocked #{request.remote_ip}\n\n#{sso.diagnostics}")
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end
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return render(text: I18n.t("sso.unknown_error"), status: 500)
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end
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return_path = sso.return_path
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sso.expire_nonce!
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begin
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if user = sso.lookup_or_create_user(request.remote_ip)
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if SiteSetting.must_approve_users? && !user.approved?
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if SiteSetting.sso_not_approved_url.present?
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redirect_to SiteSetting.sso_not_approved_url
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else
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render text: I18n.t("sso.account_not_approved"), status: 403
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end
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return
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elsif !user.active?
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activation = UserActivator.new(user, request, session, cookies)
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activation.finish
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session["user_created_message"] = activation.message
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redirect_to users_account_created_path and return
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else
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if SiteSetting.verbose_sso_logging
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Rails.logger.warn("Verbose SSO log: User was logged on #{user.username}\n\n#{sso.diagnostics}")
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end
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log_on_user user
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end
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# If it's not a relative URL check the host
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if return_path !~ /^\/[^\/]/
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begin
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uri = URI(return_path)
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return_path = path("/") unless uri.host == Discourse.current_hostname
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rescue
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return_path = path("/")
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end
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end
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redirect_to return_path
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else
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render text: I18n.t("sso.not_found"), status: 500
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end
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rescue ActiveRecord::RecordInvalid => e
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if SiteSetting.verbose_sso_logging
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Rails.logger.warn(<<-EOF)
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Verbose SSO log: Record was invalid: #{e.record.class.name} #{e.record.id}\n
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#{e.record.errors.to_h}\n
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\n
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#{sso.diagnostics}
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EOF
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end
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render text: I18n.t("sso.unknown_error"), status: 500
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rescue => e
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message = "Failed to create or lookup user: #{e}."
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message << "\n\n" << "-" * 100 << "\n\n"
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message << sso.diagnostics
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message << "\n\n" << "-" * 100 << "\n\n"
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message << e.backtrace.join("\n")
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Rails.logger.error(message)
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render text: I18n.t("sso.unknown_error"), status: 500
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end
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end
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def create
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unless allow_local_auth?
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render nothing: true, status: 500
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return
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end
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RateLimiter.new(nil, "login-hr-#{request.remote_ip}", 30, 1.hour).performed!
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RateLimiter.new(nil, "login-min-#{request.remote_ip}", 6, 1.minute).performed!
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params.require(:login)
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params.require(:password)
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return invalid_credentials if params[:password].length > User.max_password_length
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login = params[:login].strip
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login = login[1..-1] if login[0] == "@"
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if user = User.find_by_username_or_email(login)
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# If their password is correct
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unless user.confirm_password?(params[:password])
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invalid_credentials
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return
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end
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# If the site requires user approval and the user is not approved yet
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if login_not_approved_for?(user)
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login_not_approved
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return
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end
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# User signed on with username and password, so let's prevent the invite link
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# from being used to log in (if one exists).
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Invite.invalidate_for_email(user.email)
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else
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invalid_credentials
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return
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end
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if user.suspended?
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failed_to_login(user)
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return
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end
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if ScreenedIpAddress.should_block?(request.remote_ip)
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return not_allowed_from_ip_address(user)
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end
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if ScreenedIpAddress.block_admin_login?(user, request.remote_ip)
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return admin_not_allowed_from_ip_address(user)
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end
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(user.active && user.email_confirmed?) ? login(user) : not_activated(user)
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end
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def forgot_password
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params.require(:login)
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unless allow_local_auth?
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render nothing: true, status: 500
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return
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end
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RateLimiter.new(nil, "forgot-password-hr-#{request.remote_ip}", 6, 1.hour).performed!
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RateLimiter.new(nil, "forgot-password-min-#{request.remote_ip}", 3, 1.minute).performed!
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user = User.find_by_username_or_email(params[:login])
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user_presence = user.present? && user.id != Discourse::SYSTEM_USER_ID && !user.staged
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if user_presence
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email_token = user.email_tokens.create(email: user.email)
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Jobs.enqueue(:critical_user_email, type: :forgot_password, user_id: user.id, email_token: email_token.token)
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end
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json = { result: "ok" }
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unless SiteSetting.forgot_password_strict
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json[:user_found] = user_presence
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end
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render json: json
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rescue RateLimiter::LimitExceeded
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render_json_error(I18n.t("rate_limiter.slow_down"))
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end
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def current
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if current_user.present?
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render_serialized(current_user, CurrentUserSerializer)
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else
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render nothing: true, status: 404
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end
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end
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def destroy
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reset_session
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log_off_user
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if request.xhr?
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render nothing: true
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else
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redirect_to (params[:return_url] || path("/"))
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end
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end
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private
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def allow_local_auth?
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!SiteSetting.enable_sso && SiteSetting.enable_local_logins
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end
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def login_not_approved_for?(user)
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SiteSetting.must_approve_users? && !user.approved? && !user.admin?
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end
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def invalid_credentials
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render json: {error: I18n.t("login.incorrect_username_email_or_password")}
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end
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def login_not_approved
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render json: {error: I18n.t("login.not_approved")}
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end
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def not_activated(user)
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render json: {
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error: I18n.t("login.not_activated"),
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reason: 'not_activated',
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sent_to_email: user.find_email || user.email,
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current_email: user.email
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}
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end
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def not_allowed_from_ip_address(user)
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render json: {error: I18n.t("login.not_allowed_from_ip_address", username: user.username)}
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end
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def admin_not_allowed_from_ip_address(user)
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render json: {error: I18n.t("login.admin_not_allowed_from_ip_address", username: user.username)}
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end
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def failed_to_login(user)
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message = user.suspend_reason ? "login.suspended_with_reason" : "login.suspended"
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render json: {
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error: I18n.t(message, { date: I18n.l(user.suspended_till, format: :date_only),
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reason: Rack::Utils.escape_html(user.suspend_reason) }),
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reason: 'suspended'
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}
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end
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def login(user)
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log_on_user(user)
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if payload = session.delete(:sso_payload)
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sso_provider(payload)
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end
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render_serialized(user, UserSerializer)
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end
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end
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