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, :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 new
 154     @title = t "users.new.title"
 155     @referer = if params[:referer]
 156                  safe_referer(params[:referer])
 157                else
 158                  session[:referer]
 159                end
 160
 161     append_content_security_policy_directives(
 162       :form_action => %w[accounts.google.com *.facebook.com login.live.com github.com meta.wikimedia.org]
 163     )
 164
 165     if current_user
 166       # The user is logged in already, so don't show them the signup
 167       # page, instead send them to the home page
 168       if @referer
 169         redirect_to @referer
 170       else
 171         redirect_to :controller => "site", :action => "index"
 172       end
 173     elsif params.key?(:auth_provider) && params.key?(:auth_uid)
 174       self.current_user = User.new(:email => params[:email],
 175                                    :email_confirmation => params[:email],
 176                                    :display_name => params[:nickname],
 177                                    :auth_provider => params[:auth_provider],
 178                                    :auth_uid => params[:auth_uid])
 179
 180       flash.now[:notice] = render_to_string :partial => "auth_association"
 181     else
 182       check_signup_allowed
 183
 184       self.current_user = User.new
 185     end
 186   end
 187
 188   def create
 189     self.current_user = User.new(user_params)
 190
 191     if check_signup_allowed(current_user.email)
 192       session[:referer] = safe_referer(params[:referer]) if params[:referer]
 193
 194       Rails.logger.info "create: #{session[:referer]}"
 195
 196       current_user.status = "pending"
 197
 198       if current_user.auth_provider.present? && current_user.pass_crypt.empty?
 199         # We are creating an account with external authentication and
 200         # no password was specified so create a random one
 201         current_user.pass_crypt = SecureRandom.base64(16)
 202         current_user.pass_crypt_confirmation = current_user.pass_crypt
 203       end
 204
 205       if current_user.invalid?
 206         # Something is wrong with a new user, so rerender the form
 207         render :action => "new"
 208       elsif current_user.auth_provider.present?
 209         # Verify external authenticator before moving on
 210         session[:new_user] = current_user
 211         redirect_to auth_url(current_user.auth_provider, current_user.auth_uid), :status => :temporary_redirect
 212       else
 213         # Save the user record
 214         session[:new_user] = current_user
 215         redirect_to :action => :terms
 216       end
 217     end
 218   end
 219
 220   def confirm
 221     if request.post?
 222       token = UserToken.find_by(:token => params[:confirm_string])
 223       if token&.user&.active?
 224         flash[:error] = t("users.confirm.already active")
 225         redirect_to login_path
 226       elsif !token || token.expired?
 227         flash[:error] = t("users.confirm.unknown token")
 228         redirect_to :action => "confirm"
 229       elsif !token.user.visible?
 230         render_unknown_user token.user.display_name
 231       else
 232         user = token.user
 233         user.status = "active"
 234         user.email_valid = true
 235         flash[:notice] = gravatar_status_message(user) if gravatar_enable(user)
 236         user.save!
 237         referer = safe_referer(token.referer) if token.referer
 238         token.destroy
 239
 240         if session[:token]
 241           token = UserToken.find_by(:token => session[:token])
 242           session.delete(:token)
 243         else
 244           token = nil
 245         end
 246
 247         if token.nil? || token.user != user
 248           flash[:notice] = t("users.confirm.success")
 249           redirect_to login_path(:referer => referer)
 250         else
 251           token.destroy
 252
 253           session[:user] = user.id
 254           session[:fingerprint] = user.fingerprint
 255
 256           redirect_to referer || welcome_path
 257         end
 258       end
 259     else
 260       user = User.visible.find_by(:display_name => params[:display_name])
 261
 262       redirect_to root_path if user.nil? || user.active?
 263     end
 264   end
 265
 266   def confirm_resend
 267     user = User.visible.find_by(:display_name => params[:display_name])
 268     token = UserToken.find_by(:token => session[:token])
 269
 270     if user.nil? || token.nil? || token.user != user
 271       flash[:error] = t "users.confirm_resend.failure", :name => params[:display_name]
 272     else
 273       UserMailer.signup_confirm(user, user.tokens.create).deliver_later
 274       flash[:notice] = t "users.confirm_resend.success_html", :email => user.email, :sender => Settings.support_email
 275     end
 276
 277     redirect_to login_path
 278   end
 279
 280   def confirm_email
 281     if request.post?
 282       token = UserToken.find_by(:token => params[:confirm_string])
 283       if token&.user&.new_email?
 284         self.current_user = token.user
 285         current_user.email = current_user.new_email
 286         current_user.new_email = nil
 287         current_user.email_valid = true
 288         gravatar_enabled = gravatar_enable(current_user)
 289         if current_user.save
 290           flash[:notice] = if gravatar_enabled
 291                              "#{t('users.confirm_email.success')} #{gravatar_status_message(current_user)}"
 292                            else
 293                              t("users.confirm_email.success")
 294                            end
 295         else
 296           flash[:errors] = current_user.errors
 297         end
 298         current_user.tokens.delete_all
 299         session[:user] = current_user.id
 300         session[:fingerprint] = current_user.fingerprint
 301         redirect_to :action => "account", :display_name => current_user.display_name
 302       elsif token
 303         flash[:error] = t "users.confirm_email.failure"
 304         redirect_to :action => "account", :display_name => token.user.display_name
 305       else
 306         flash[:error] = t "users.confirm_email.unknown_token"
 307       end
 308     end
 309   end
 310
 311   def show
 312     @user = User.find_by(:display_name => params[:display_name])
 313
 314     if @user &&
 315        (@user.visible? || current_user&.administrator?)
 316       @title = @user.display_name
 317     else
 318       render_unknown_user params[:display_name]
 319     end
 320   end
 321
 322   ##
 323   # sets a user's status
 324   def set_status
 325     @user.status = params[:status]
 326     @user.save
 327     redirect_to user_path(:display_name => params[:display_name])
 328   end
 329
 330   ##
 331   # delete a user, marking them as deleted and removing personal data
 332   def destroy
 333     @user.delete
 334     redirect_to user_path(:display_name => params[:display_name])
 335   end
 336
 337   ##
 338   # display a list of users matching specified criteria
 339   def index
 340     if request.post?
 341       ids = params[:user].keys.collect(&:to_i)
 342
 343       User.where(:id => ids).update_all(:status => "confirmed") if params[:confirm]
 344       User.where(:id => ids).update_all(:status => "deleted") if params[:hide]
 345
 346       redirect_to url_for(:status => params[:status], :ip => params[:ip], :page => params[:page])
 347     else
 348       @params = params.permit(:status, :ip)
 349
 350       conditions = {}
 351       conditions[:status] = @params[:status] if @params[:status]
 352       conditions[:creation_ip] = @params[:ip] if @params[:ip]
 353
 354       @user_pages, @users = paginate(:users,
 355                                      :conditions => conditions,
 356                                      :order => :id,
 357                                      :per_page => 50)
 358     end
 359   end
 360
 361   ##
 362   # omniauth success callback
 363   def auth_success
 364     auth_info = request.env["omniauth.auth"]
 365
 366     provider = auth_info[:provider]
 367     uid = auth_info[:uid]
 368     name = auth_info[:info][:name]
 369     email = auth_info[:info][:email]
 370
 371     case provider
 372     when "openid"
 373       email_verified = uid.match(%r{https://www.google.com/accounts/o8/id?(.*)}) ||
 374                        uid.match(%r{https://me.yahoo.com/(.*)})
 375     when "google", "facebook"
 376       email_verified = true
 377     else
 378       email_verified = false
 379     end
 380
 381     if settings = session.delete(:new_user_settings)
 382       current_user.auth_provider = provider
 383       current_user.auth_uid = uid
 384
 385       update_user(current_user, settings)
 386
 387       flash.discard
 388
 389       session[:user_errors] = current_user.errors.as_json
 390
 391       redirect_to :action => "account", :display_name => current_user.display_name
 392     elsif session[:new_user]
 393       session[:new_user].auth_provider = provider
 394       session[:new_user].auth_uid = uid
 395
 396       session[:new_user].status = "active" if email_verified && email == session[:new_user].email
 397
 398       redirect_to :action => "terms"
 399     else
 400       user = User.find_by(:auth_provider => provider, :auth_uid => uid)
 401
 402       if user.nil? && provider == "google"
 403         openid_url = auth_info[:extra][:id_info]["openid_id"]
 404         user = User.find_by(:auth_provider => "openid", :auth_uid => openid_url) if openid_url
 405         user&.update(:auth_provider => provider, :auth_uid => uid)
 406       end
 407
 408       if user
 409         case user.status
 410         when "pending"
 411           unconfirmed_login(user)
 412         when "active", "confirmed"
 413           successful_login(user, request.env["omniauth.params"]["referer"])
 414         when "suspended"
 415           failed_login t("users.login.account is suspended", :webmaster => "mailto:#{Settings.support_email}").html_safe
 416         else
 417           failed_login t("users.login.auth failure")
 418         end
 419       else
 420         redirect_to :action => "new", :nickname => name, :email => email,
 421                     :auth_provider => provider, :auth_uid => uid
 422       end
 423     end
 424   end
 425
 426   ##
 427   # omniauth failure callback
 428   def auth_failure
 429     flash[:error] = t("users.auth_failure.#{params[:message]}")
 430     redirect_to params[:origin] || login_url
 431   end
 432
 433   private
 434
 435   ##
 436   #
 437   def unconfirmed_login(user)
 438     session[:token] = user.tokens.create.token
 439
 440     redirect_to :action => "confirm", :display_name => user.display_name
 441
 442     session.delete(:remember_me)
 443     session.delete(:referer)
 444   end
 445
 446   ##
 447   # update a user's details
 448   def update_user(user, params)
 449     user.display_name = params[:user][:display_name]
 450     user.new_email = params[:user][:new_email]
 451
 452     unless params[:user][:pass_crypt].empty? && params[:user][:pass_crypt_confirmation].empty?
 453       user.pass_crypt = params[:user][:pass_crypt]
 454       user.pass_crypt_confirmation = params[:user][:pass_crypt_confirmation]
 455     end
 456
 457     if params[:user][:description] != user.description
 458       user.description = params[:user][:description]
 459       user.description_format = "markdown"
 460     end
 461
 462     user.languages = params[:user][:languages].split(",")
 463
 464     case params[:avatar_action]
 465     when "new"
 466       user.avatar.attach(params[:user][:avatar])
 467       user.image_use_gravatar = false
 468     when "delete"
 469       user.avatar.purge_later
 470       user.image_use_gravatar = false
 471     when "gravatar"
 472       user.avatar.purge_later
 473       user.image_use_gravatar = true
 474     end
 475
 476     user.home_lat = params[:user][:home_lat]
 477     user.home_lon = params[:user][:home_lon]
 478
 479     user.preferred_editor = if params[:user][:preferred_editor] == "default"
 480                               nil
 481                             else
 482                               params[:user][:preferred_editor]
 483                             end
 484
 485     if params[:user][:auth_provider].nil? || params[:user][:auth_provider].blank?
 486       user.auth_provider = nil
 487       user.auth_uid = nil
 488     end
 489
 490     if user.save
 491       session[:fingerprint] = user.fingerprint
 492
 493       set_locale(:reset => true)
 494
 495       if user.new_email.blank? || user.new_email == user.email
 496         flash[:notice] = t "users.account.flash update success"
 497       else
 498         user.email = user.new_email
 499
 500         if user.valid?
 501           flash[:notice] = t "users.account.flash update success confirm needed"
 502
 503           begin
 504             UserMailer.email_confirm(user, user.tokens.create).deliver_later
 505           rescue StandardError
 506             # Ignore errors sending email
 507           end
 508         else
 509           current_user.errors.add(:new_email, current_user.errors[:email])
 510           current_user.errors.add(:email, [])
 511         end
 512
 513         user.restore_email!
 514       end
 515     end
 516   end
 517
 518   ##
 519   # require that the user in the URL is the logged in user
 520   def require_self
 521     head :forbidden if params[:display_name] != current_user.display_name
 522   end
 523
 524   ##
 525   # ensure that there is a "user" instance variable
 526   def lookup_user_by_name
 527     @user = User.find_by(:display_name => params[:display_name])
 528   rescue ActiveRecord::RecordNotFound
 529     redirect_to :action => "view", :display_name => params[:display_name] unless @user
 530   end
 531
 532   ##
 533   # return permitted user parameters
 534   def user_params
 535     params.require(:user).permit(:email, :email_confirmation, :display_name,
 536                                  :auth_provider, :auth_uid,
 537                                  :pass_crypt, :pass_crypt_confirmation)
 538   end
 539
 540   ##
 541   # check signup acls
 542   def check_signup_allowed(email = nil)
 543     domain = if email.nil?
 544                nil
 545              else
 546                email.split("@").last
 547              end
 548
 549     mx_servers = if domain.nil?
 550                    nil
 551                  else
 552                    domain_mx_servers(domain)
 553                  end
 554
 555     if blocked = Acl.no_account_creation(request.remote_ip, :domain => domain, :mx => mx_servers)
 556       logger.info "Blocked signup from #{request.remote_ip} for #{email}"
 557
 558       render :action => "blocked"
 559     end
 560
 561     !blocked
 562   end
 563
 564   ##
 565   # get list of MX servers for a domains
 566   def domain_mx_servers(domain)
 567     Resolv::DNS.open do |dns|
 568       dns.getresources(domain, Resolv::DNS::Resource::IN::MX).collect(&:exchange).collect(&:to_s)
 569     end
 570   end
 571
 572   ##
 573   # check if this user has a gravatar and set the user pref is true
 574   def gravatar_enable(user)
 575     # code from example https://en.gravatar.com/site/implement/images/ruby/
 576     return false if user.avatar.attached?
 577
 578     begin
 579       hash = Digest::MD5.hexdigest(user.email.downcase)
 580       url = "https://www.gravatar.com/avatar/#{hash}?d=404" # without d=404 we will always get an image back
 581       response = OSM.http_client.get(URI.parse(url))
 582       available = response.success?
 583     rescue StandardError
 584       available = false
 585     end
 586
 587     oldsetting = user.image_use_gravatar
 588     user.image_use_gravatar = available
 589     oldsetting != user.image_use_gravatar
 590   end
 591
 592   ##
 593   # display a message about th current status of the gravatar setting
 594   def gravatar_status_message(user)
 595     if user.image_use_gravatar
 596       t "users.account.gravatar.enabled"
 597     else
 598       t "users.account.gravatar.disabled"
 599     end
 600   end
 601 end