app/controllers/users_controller.rb

   1 class UsersController < ApplicationController
   2   layout "site"
   3
   4   skip_before_action :verify_authenticity_token, :only => [:auth_success]
   5   before_action :disable_terms_redirect, :only => [:terms, :save, :logout]
   6   before_action :authorize_web
   7   before_action :set_locale
   8   before_action :check_database_readable
   9
  10   authorize_resource
  11
  12   before_action :require_self, :only => [:account]
  13   before_action :check_database_writable, :only => [:new, :account, :confirm, :confirm_email, :lost_password, :reset_password, :go_public]
  14   before_action :require_cookies, :only => [:new, :login, :confirm]
  15   before_action :lookup_user_by_name, :only => [:set_status, :destroy]
  16   before_action :allow_thirdparty_images, :only => [:show, :account]
  17
  18   def terms
  19     @legale = params[:legale] || OSM.ip_to_country(request.remote_ip) || Settings.default_legale
  20     @text = OSM.legal_text_for_country(@legale)
  21
  22     if request.xhr?
  23       render :partial => "terms"
  24     else
  25       @title = t "users.terms.title"
  26
  27       if current_user&.terms_agreed?
  28         # Already agreed to terms, so just show settings
  29         redirect_to :action => :account, :display_name => current_user.display_name
  30       elsif current_user.nil? && session[:new_user].nil?
  31         redirect_to :action => :login, :referer => request.fullpath
  32       end
  33     end
  34   end
  35
  36   def save
  37     @title = t "users.new.title"
  38
  39     if params[:decline] || !(params[:read_tou] && params[:read_ct])
  40       if current_user
  41         current_user.terms_seen = true
  42
  43         flash[:notice] = t("users.new.terms declined", :url => t("users.new.terms declined url")).html_safe if current_user.save
  44
  45         if params[:referer]
  46           redirect_to safe_referer(params[:referer])
  47         else
  48           redirect_to :action => :account, :display_name => current_user.display_name
  49         end
  50       elsif params[:decline]
  51         redirect_to t("users.terms.declined")
  52       else
  53         redirect_to :action => :terms
  54       end
  55     elsif current_user
  56       unless current_user.terms_agreed?
  57         current_user.consider_pd = params[:user][:consider_pd]
  58         current_user.tou_agreed = Time.now.getutc
  59         current_user.terms_agreed = Time.now.getutc
  60         current_user.terms_seen = true
  61
  62         flash[:notice] = t "users.new.terms accepted" if current_user.save
  63       end
  64
  65       if params[:referer]
  66         redirect_to safe_referer(params[:referer])
  67       else
  68         redirect_to :action => :account, :display_name => current_user.display_name
  69       end
  70     else
  71       self.current_user = session.delete(:new_user)
  72
  73       if check_signup_allowed(current_user.email)
  74         current_user.data_public = true
  75         current_user.description = "" if current_user.description.nil?
  76         current_user.creation_ip = request.remote_ip
  77         current_user.languages = http_accept_language.user_preferred_languages
  78         current_user.terms_agreed = Time.now.getutc
  79         current_user.tou_agreed = Time.now.getutc
  80         current_user.terms_seen = true
  81
  82         if current_user.auth_uid.blank?
  83           current_user.auth_provider = nil
  84           current_user.auth_uid = nil
  85         end
  86
  87         if current_user.save
  88           flash[:piwik_goal] = PIWIK["goals"]["signup"] if defined?(PIWIK)
  89
  90           referer = welcome_path
  91
  92           begin
  93             uri = URI(session[:referer])
  94             %r{map=(.*)/(.*)/(.*)}.match(uri.fragment) do |m|
  95               editor = Rack::Utils.parse_query(uri.query).slice("editor")
  96               referer = welcome_path({ "zoom" => m[1],
  97                                        "lat" => m[2],
  98                                        "lon" => m[3] }.merge(editor))
  99             end
 100           rescue StandardError
 101             # Use default
 102           end
 103
 104           if current_user.status == "active"
 105             session[:referer] = referer
 106             successful_login(current_user)
 107           else
 108             session[:token] = current_user.tokens.create.token
 109             UserMailer.signup_confirm(current_user, current_user.tokens.create(:referer => referer)).deliver_later
 110             redirect_to :action => "confirm", :display_name => current_user.display_name
 111           end
 112         else
 113           render :action => "new", :referer => params[:referer]
 114         end
 115       end
 116     end
 117   end
 118
 119   def account
 120     @tokens = current_user.oauth_tokens.authorized
 121
 122     append_content_security_policy_directives(
 123       :form_action => %w[accounts.google.com *.facebook.com login.live.com github.com meta.wikimedia.org]
 124     )
 125
 126     if params[:user] && params[:user][:display_name] && params[:user][:description]
 127       if params[:user][:auth_provider].blank? ||
 128          (params[:user][:auth_provider] == current_user.auth_provider &&
 129           params[:user][:auth_uid] == current_user.auth_uid)
 130         update_user(current_user, params)
 131       else
 132         session[:new_user_settings] = params
 133         redirect_to auth_url(params[:user][:auth_provider], params[:user][:auth_uid])
 134       end
 135     elsif errors = session.delete(:user_errors)
 136       errors.each do |attribute, error|
 137         current_user.errors.add(attribute, error)
 138       end
 139     end
 140     @title = t "users.account.title"
 141   end
 142
 143   def go_public
 144     current_user.data_public = true
 145     current_user.save
 146     flash[:notice] = t "users.go_public.flash success"
 147     redirect_to :action => "account", :display_name => current_user.display_name
 148   end
 149
 150   def lost_password
 151     @title = t "users.lost_password.title"
 152
 153     if params[:email]
 154       user = User.visible.find_by(:email => params[:email])
 155
 156       if user.nil?
 157         users = User.visible.where("LOWER(email) = LOWER(?)", params[:email])
 158
 159         user = users.first if users.count == 1
 160       end
 161
 162       if user
 163         token = user.tokens.create
 164         UserMailer.lost_password(user, token).deliver_later
 165         flash[:notice] = t "users.lost_password.notice email on way"
 166         redirect_to :action => "login"
 167       else
 168         flash.now[:error] = t "users.lost_password.notice email cannot find"
 169       end
 170     end
 171   end
 172
 173   def reset_password
 174     @title = t "users.reset_password.title"
 175
 176     if params[:token]
 177       token = UserToken.find_by(:token => params[:token])
 178
 179       if token
 180         self.current_user = token.user
 181
 182         if params[:user]
 183           current_user.pass_crypt = params[:user][:pass_crypt]
 184           current_user.pass_crypt_confirmation = params[:user][:pass_crypt_confirmation]
 185           current_user.status = "active" if current_user.status == "pending"
 186           current_user.email_valid = true
 187
 188           if current_user.save
 189             token.destroy
 190             session[:fingerprint] = current_user.fingerprint
 191             flash[:notice] = t "users.reset_password.flash changed"
 192             successful_login(current_user)
 193           end
 194         end
 195       else
 196         flash[:error] = t "users.reset_password.flash token bad"
 197         redirect_to :action => "lost_password"
 198       end
 199     else
 200       head :bad_request
 201     end
 202   end
 203
 204   def new
 205     @title = t "users.new.title"
 206     @referer = if params[:referer]
 207                  safe_referer(params[:referer])
 208                else
 209                  session[:referer]
 210                end
 211
 212     append_content_security_policy_directives(
 213       :form_action => %w[accounts.google.com *.facebook.com login.live.com github.com meta.wikimedia.org]
 214     )
 215
 216     if current_user
 217       # The user is logged in already, so don't show them the signup
 218       # page, instead send them to the home page
 219       if @referer
 220         redirect_to @referer
 221       else
 222         redirect_to :controller => "site", :action => "index"
 223       end
 224     elsif params.key?(:auth_provider) && params.key?(:auth_uid)
 225       self.current_user = User.new(:email => params[:email],
 226                                    :email_confirmation => params[:email],
 227                                    :display_name => params[:nickname],
 228                                    :auth_provider => params[:auth_provider],
 229                                    :auth_uid => params[:auth_uid])
 230
 231       flash.now[:notice] = render_to_string :partial => "auth_association"
 232     else
 233       check_signup_allowed
 234
 235       self.current_user = User.new
 236     end
 237   end
 238
 239   def create
 240     self.current_user = User.new(user_params)
 241
 242     if check_signup_allowed(current_user.email)
 243       session[:referer] = safe_referer(params[:referer]) if params[:referer]
 244
 245       Rails.logger.info "create: #{session[:referer]}"
 246
 247       current_user.status = "pending"
 248
 249       if current_user.auth_provider.present? && current_user.pass_crypt.empty?
 250         # We are creating an account with external authentication and
 251         # no password was specified so create a random one
 252         current_user.pass_crypt = SecureRandom.base64(16)
 253         current_user.pass_crypt_confirmation = current_user.pass_crypt
 254       end
 255
 256       if current_user.invalid?
 257         # Something is wrong with a new user, so rerender the form
 258         render :action => "new"
 259       elsif current_user.auth_provider.present?
 260         # Verify external authenticator before moving on
 261         session[:new_user] = current_user
 262         redirect_to auth_url(current_user.auth_provider, current_user.auth_uid)
 263       else
 264         # Save the user record
 265         session[:new_user] = current_user
 266         redirect_to :action => :terms
 267       end
 268     end
 269   end
 270
 271   def login
 272     session[:referer] = safe_referer(params[:referer]) if params[:referer]
 273
 274     if params[:username].present? && params[:password].present?
 275       session[:remember_me] ||= params[:remember_me]
 276       password_authentication(params[:username], params[:password])
 277     end
 278   end
 279
 280   def logout
 281     @title = t "users.logout.title"
 282
 283     if request.post?
 284       if session[:token]
 285         token = UserToken.find_by(:token => session[:token])
 286         token&.destroy
 287         session.delete(:token)
 288       end
 289       session.delete(:user)
 290       session_expires_automatically
 291       if params[:referer]
 292         redirect_to safe_referer(params[:referer])
 293       else
 294         redirect_to :controller => "site", :action => "index"
 295       end
 296     end
 297   end
 298
 299   def confirm
 300     if request.post?
 301       token = UserToken.find_by(:token => params[:confirm_string])
 302       if token&.user&.active?
 303         flash[:error] = t("users.confirm.already active")
 304         redirect_to :action => "login"
 305       elsif !token || token.expired?
 306         flash[:error] = t("users.confirm.unknown token")
 307         redirect_to :action => "confirm"
 308       else
 309         user = token.user
 310         user.status = "active"
 311         user.email_valid = true
 312         flash[:notice] = gravatar_status_message(user) if gravatar_enable(user)
 313         user.save!
 314         referer = safe_referer(token.referer) if token.referer
 315         token.destroy
 316
 317         if session[:token]
 318           token = UserToken.find_by(:token => session[:token])
 319           session.delete(:token)
 320         else
 321           token = nil
 322         end
 323
 324         if token.nil? || token.user != user
 325           flash[:notice] = t("users.confirm.success")
 326           redirect_to :action => :login, :referer => referer
 327         else
 328           token.destroy
 329
 330           session[:user] = user.id
 331           session[:fingerprint] = user.fingerprint
 332
 333           redirect_to referer || welcome_path
 334         end
 335       end
 336     else
 337       user = User.find_by(:display_name => params[:display_name])
 338
 339       redirect_to root_path if user.nil? || user.active?
 340     end
 341   end
 342
 343   def confirm_resend
 344     user = User.find_by(:display_name => params[:display_name])
 345     token = UserToken.find_by(:token => session[:token])
 346
 347     if user.nil? || token.nil? || token.user != user
 348       flash[:error] = t "users.confirm_resend.failure", :name => params[:display_name]
 349     else
 350       UserMailer.signup_confirm(user, user.tokens.create).deliver_later
 351       flash[:notice] = t "users.confirm_resend.success_html", :email => user.email, :sender => Settings.support_email
 352     end
 353
 354     redirect_to :action => "login"
 355   end
 356
 357   def confirm_email
 358     if request.post?
 359       token = UserToken.find_by(:token => params[:confirm_string])
 360       if token&.user&.new_email?
 361         self.current_user = token.user
 362         current_user.email = current_user.new_email
 363         current_user.new_email = nil
 364         current_user.email_valid = true
 365         gravatar_enabled = gravatar_enable(current_user)
 366         if current_user.save
 367           flash[:notice] = if gravatar_enabled
 368                              "#{t('users.confirm_email.success')} #{gravatar_status_message(current_user)}"
 369                            else
 370                              t("users.confirm_email.success")
 371                            end
 372         else
 373           flash[:errors] = current_user.errors
 374         end
 375         current_user.tokens.delete_all
 376         session[:user] = current_user.id
 377         session[:fingerprint] = current_user.fingerprint
 378         redirect_to :action => "account", :display_name => current_user.display_name
 379       elsif token
 380         flash[:error] = t "users.confirm_email.failure"
 381         redirect_to :action => "account", :display_name => token.user.display_name
 382       else
 383         flash[:error] = t "users.confirm_email.unknown_token"
 384       end
 385     end
 386   end
 387
 388   def show
 389     @user = User.find_by(:display_name => params[:display_name])
 390
 391     if @user &&
 392        (@user.visible? || current_user&.administrator?)
 393       @title = @user.display_name
 394     else
 395       render_unknown_user params[:display_name]
 396     end
 397   end
 398
 399   ##
 400   # sets a user's status
 401   def set_status
 402     @user.status = params[:status]
 403     @user.save
 404     redirect_to user_path(:display_name => params[:display_name])
 405   end
 406
 407   ##
 408   # delete a user, marking them as deleted and removing personal data
 409   def destroy
 410     @user.delete
 411     redirect_to user_path(:display_name => params[:display_name])
 412   end
 413
 414   ##
 415   # display a list of users matching specified criteria
 416   def index
 417     if request.post?
 418       ids = params[:user].keys.collect(&:to_i)
 419
 420       User.where(:id => ids).update_all(:status => "confirmed") if params[:confirm]
 421       User.where(:id => ids).update_all(:status => "deleted") if params[:hide]
 422
 423       redirect_to url_for(:status => params[:status], :ip => params[:ip], :page => params[:page])
 424     else
 425       @params = params.permit(:status, :ip)
 426
 427       conditions = {}
 428       conditions[:status] = @params[:status] if @params[:status]
 429       conditions[:creation_ip] = @params[:ip] if @params[:ip]
 430
 431       @user_pages, @users = paginate(:users,
 432                                      :conditions => conditions,
 433                                      :order => :id,
 434                                      :per_page => 50)
 435     end
 436   end
 437
 438   ##
 439   # omniauth success callback
 440   def auth_success
 441     auth_info = request.env["omniauth.auth"]
 442
 443     provider = auth_info[:provider]
 444     uid = auth_info[:uid]
 445     name = auth_info[:info][:name]
 446     email = auth_info[:info][:email]
 447
 448     case provider
 449     when "openid"
 450       email_verified = uid.match(%r{https://www.google.com/accounts/o8/id?(.*)}) ||
 451                        uid.match(%r{https://me.yahoo.com/(.*)})
 452     when "google", "facebook"
 453       email_verified = true
 454     else
 455       email_verified = false
 456     end
 457
 458     if settings = session.delete(:new_user_settings)
 459       current_user.auth_provider = provider
 460       current_user.auth_uid = uid
 461
 462       update_user(current_user, settings)
 463
 464       session[:user_errors] = current_user.errors.as_json
 465
 466       redirect_to :action => "account", :display_name => current_user.display_name
 467     elsif session[:new_user]
 468       session[:new_user].auth_provider = provider
 469       session[:new_user].auth_uid = uid
 470
 471       session[:new_user].status = "active" if email_verified && email == session[:new_user].email
 472
 473       redirect_to :action => "terms"
 474     else
 475       user = User.find_by(:auth_provider => provider, :auth_uid => uid)
 476
 477       if user.nil? && provider == "google"
 478         openid_url = auth_info[:extra][:id_info]["openid_id"]
 479         user = User.find_by(:auth_provider => "openid", :auth_uid => openid_url) if openid_url
 480         user&.update(:auth_provider => provider, :auth_uid => uid)
 481       end
 482
 483       if user
 484         case user.status
 485         when "pending"
 486           unconfirmed_login(user)
 487         when "active", "confirmed"
 488           successful_login(user, request.env["omniauth.params"]["referer"])
 489         when "suspended"
 490           failed_login t("users.login.account is suspended", :webmaster => "mailto:#{Settings.support_email}").html_safe
 491         else
 492           failed_login t("users.login.auth failure")
 493         end
 494       else
 495         redirect_to :action => "new", :nickname => name, :email => email,
 496                     :auth_provider => provider, :auth_uid => uid
 497       end
 498     end
 499   end
 500
 501   ##
 502   # omniauth failure callback
 503   def auth_failure
 504     flash[:error] = t("users.auth_failure.#{params[:message]}")
 505     redirect_to params[:origin] || login_url
 506   end
 507
 508   private
 509
 510   ##
 511   # handle password authentication
 512   def password_authentication(username, password)
 513     if user = User.authenticate(:username => username, :password => password)
 514       successful_login(user)
 515     elsif user = User.authenticate(:username => username, :password => password, :pending => true)
 516       unconfirmed_login(user)
 517     elsif User.authenticate(:username => username, :password => password, :suspended => true)
 518       failed_login t("users.login.account is suspended", :webmaster => "mailto:#{Settings.support_email}").html_safe, username
 519     else
 520       failed_login t("users.login.auth failure"), username
 521     end
 522   end
 523
 524   ##
 525   # return the URL to use for authentication
 526   def auth_url(provider, uid, referer = nil)
 527     params = { :provider => provider }
 528
 529     params[:openid_url] = openid_expand_url(uid) if provider == "openid"
 530
 531     if referer.nil?
 532       params[:origin] = request.path
 533     else
 534       params[:origin] = "#{request.path}?referer=#{CGI.escape(referer)}"
 535       params[:referer] = referer
 536     end
 537
 538     auth_path(params)
 539   end
 540
 541   ##
 542   # special case some common OpenID providers by applying heuristics to
 543   # try and come up with the correct URL based on what the user entered
 544   def openid_expand_url(openid_url)
 545     if openid_url.nil?
 546       nil
 547     elsif openid_url.match(%r{(.*)gmail.com(/?)$}) || openid_url.match(%r{(.*)googlemail.com(/?)$})
 548       # Special case gmail.com as it is potentially a popular OpenID
 549       # provider and, unlike yahoo.com, where it works automatically, Google
 550       # have hidden their OpenID endpoint somewhere obscure this making it
 551       # somewhat less user friendly.
 552       "https://www.google.com/accounts/o8/id"
 553     else
 554       openid_url
 555     end
 556   end
 557
 558   ##
 559   # process a successful login
 560   def successful_login(user, referer = nil)
 561     session[:user] = user.id
 562     session[:fingerprint] = user.fingerprint
 563     session_expires_after 28.days if session[:remember_me]
 564
 565     target = referer || session[:referer] || url_for(:controller => :site, :action => :index)
 566
 567     # The user is logged in, so decide where to send them:
 568     #
 569     # - If they haven't seen the contributor terms, send them there.
 570     # - If they have a block on them, show them that.
 571     # - If they were referred to the login, send them back there.
 572     # - Otherwise, send them to the home page.
 573     if !user.terms_seen
 574       redirect_to :action => :terms, :referer => target
 575     elsif user.blocked_on_view
 576       redirect_to user.blocked_on_view, :referer => target
 577     else
 578       redirect_to target
 579     end
 580
 581     session.delete(:remember_me)
 582     session.delete(:referer)
 583   end
 584
 585   ##
 586   # process a failed login
 587   def failed_login(message, username = nil)
 588     flash[:error] = message
 589
 590     redirect_to :action => "login", :referer => session[:referer],
 591                 :username => username, :remember_me => session[:remember_me]
 592
 593     session.delete(:remember_me)
 594     session.delete(:referer)
 595   end
 596
 597   ##
 598   #
 599   def unconfirmed_login(user)
 600     session[:token] = user.tokens.create.token
 601
 602     redirect_to :action => "confirm", :display_name => user.display_name
 603
 604     session.delete(:remember_me)
 605     session.delete(:referer)
 606   end
 607
 608   ##
 609   # update a user's details
 610   def update_user(user, params)
 611     user.display_name = params[:user][:display_name]
 612     user.new_email = params[:user][:new_email]
 613
 614     unless params[:user][:pass_crypt].empty? && params[:user][:pass_crypt_confirmation].empty?
 615       user.pass_crypt = params[:user][:pass_crypt]
 616       user.pass_crypt_confirmation = params[:user][:pass_crypt_confirmation]
 617     end
 618
 619     if params[:user][:description] != user.description
 620       user.description = params[:user][:description]
 621       user.description_format = "markdown"
 622     end
 623
 624     user.languages = params[:user][:languages].split(",")
 625
 626     case params[:avatar_action]
 627     when "new"
 628       user.avatar.attach(params[:user][:avatar])
 629       user.image_use_gravatar = false
 630     when "delete"
 631       user.avatar.purge_later
 632       user.image_use_gravatar = false
 633     when "gravatar"
 634       user.avatar.purge_later
 635       user.image_use_gravatar = true
 636     end
 637
 638     user.home_lat = params[:user][:home_lat]
 639     user.home_lon = params[:user][:home_lon]
 640
 641     user.preferred_editor = if params[:user][:preferred_editor] == "default"
 642                               nil
 643                             else
 644                               params[:user][:preferred_editor]
 645                             end
 646
 647     if params[:user][:auth_provider].nil? || params[:user][:auth_provider].blank?
 648       user.auth_provider = nil
 649       user.auth_uid = nil
 650     end
 651
 652     if user.save
 653       session[:fingerprint] = user.fingerprint
 654
 655       set_locale(:reset => true)
 656
 657       if user.new_email.blank? || user.new_email == user.email
 658         flash.now[:notice] = t "users.account.flash update success"
 659       else
 660         user.email = user.new_email
 661
 662         if user.valid?
 663           flash.now[:notice] = t "users.account.flash update success confirm needed"
 664
 665           begin
 666             UserMailer.email_confirm(user, user.tokens.create).deliver_later
 667           rescue StandardError
 668             # Ignore errors sending email
 669           end
 670         else
 671           current_user.errors.add(:new_email, current_user.errors[:email])
 672           current_user.errors.add(:email, [])
 673         end
 674
 675         user.restore_email!
 676       end
 677     end
 678   end
 679
 680   ##
 681   # require that the user in the URL is the logged in user
 682   def require_self
 683     head :forbidden if params[:display_name] != current_user.display_name
 684   end
 685
 686   ##
 687   # ensure that there is a "user" instance variable
 688   def lookup_user_by_name
 689     @user = User.find_by(:display_name => params[:display_name])
 690   rescue ActiveRecord::RecordNotFound
 691     redirect_to :action => "view", :display_name => params[:display_name] unless @user
 692   end
 693
 694   ##
 695   #
 696   def disable_terms_redirect
 697     # this is necessary otherwise going to the user terms page, when
 698     # having not agreed already would cause an infinite redirect loop.
 699     # it's .now so that this doesn't propagate to other pages.
 700     flash.now[:skip_terms] = true
 701   end
 702
 703   ##
 704   # return permitted user parameters
 705   def user_params
 706     params.require(:user).permit(:email, :email_confirmation, :display_name,
 707                                  :auth_provider, :auth_uid,
 708                                  :pass_crypt, :pass_crypt_confirmation)
 709   end
 710
 711   ##
 712   # check signup acls
 713   def check_signup_allowed(email = nil)
 714     domain = if email.nil?
 715                nil
 716              else
 717                email.split("@").last
 718              end
 719
 720     mx_servers = if domain.nil?
 721                    nil
 722                  else
 723                    domain_mx_servers(domain)
 724                  end
 725
 726     if blocked = Acl.no_account_creation(request.remote_ip, :domain => domain, :mx => mx_servers)
 727       logger.info "Blocked signup from #{request.remote_ip} for #{email}"
 728
 729       render :action => "blocked"
 730     end
 731
 732     !blocked
 733   end
 734
 735   ##
 736   # get list of MX servers for a domains
 737   def domain_mx_servers(domain)
 738     Resolv::DNS.open do |dns|
 739       dns.getresources(domain, Resolv::DNS::Resource::IN::MX).collect(&:exchange).collect(&:to_s)
 740     end
 741   end
 742
 743   ##
 744   # check if this user has a gravatar and set the user pref is true
 745   def gravatar_enable(user)
 746     # code from example https://en.gravatar.com/site/implement/images/ruby/
 747     return false if user.avatar.attached?
 748
 749     hash = Digest::MD5.hexdigest(user.email.downcase)
 750     url = "https://www.gravatar.com/avatar/#{hash}?d=404" # without d=404 we will always get an image back
 751     response = OSM.http_client.get(URI.parse(url))
 752     oldsetting = user.image_use_gravatar
 753     user.image_use_gravatar = response.success?
 754     oldsetting != user.image_use_gravatar
 755   end
 756
 757   ##
 758   # display a message about th current status of the gravatar setting
 759   def gravatar_status_message(user)
 760     if user.image_use_gravatar
 761       t "users.account.gravatar.enabled"
 762     else
 763       t "users.account.gravatar.disabled"
 764     end
 765   end
 766 end