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