app/controllers/users_controller.rb

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