app/controllers/users_controller.rb

   1 class UsersController < ApplicationController
   2   include SessionMethods
   3   include UserMethods
   4
   5   layout "site"
   6
   7   skip_before_action :verify_authenticity_token, :only => [:auth_success]
   8   before_action :disable_terms_redirect, :only => [:terms, :save]
   9   before_action :authorize_web
  10   before_action :set_locale
  11   before_action :check_database_readable
  12
  13   authorize_resource
  14
  15   before_action :check_database_writable, :only => [:new, :go_public]
  16   before_action :require_cookies, :only => [:new]
  17   before_action :lookup_user_by_name, :only => [:set_status, :destroy]
  18   before_action :allow_thirdparty_images, :only => [:show]
  19
  20   ##
  21   # display a list of users matching specified criteria
  22   def index
  23     if request.post?
  24       ids = params[:user].keys.collect(&:to_i)
  25
  26       User.where(:id => ids).update_all(:status => "confirmed") if params[:confirm]
  27       User.where(:id => ids).update_all(:status => "deleted") if params[:hide]
  28
  29       redirect_to url_for(:status => params[:status], :ip => params[:ip], :page => params[:page])
  30     else
  31       @params = params.permit(:status, :ip)
  32
  33       conditions = {}
  34       conditions[:status] = @params[:status] if @params[:status]
  35       conditions[:creation_ip] = @params[:ip] if @params[:ip]
  36
  37       @user_pages, @users = paginate(:users,
  38                                      :conditions => conditions,
  39                                      :order => :id,
  40                                      :per_page => 50)
  41     end
  42   end
  43
  44   def show
  45     @user = User.find_by(:display_name => params[:display_name])
  46
  47     if @user &&
  48        (@user.visible? || current_user&.administrator?)
  49       @title = @user.display_name
  50     else
  51       render_unknown_user params[:display_name]
  52     end
  53   end
  54
  55   def new
  56     @title = t ".title"
  57     @referer = if params[:referer]
  58                  safe_referer(params[:referer])
  59                else
  60                  session[:referer]
  61                end
  62
  63     append_content_security_policy_directives(
  64       :form_action => %w[accounts.google.com *.facebook.com login.live.com github.com meta.wikimedia.org]
  65     )
  66
  67     if current_user
  68       # The user is logged in already, so don't show them the signup
  69       # page, instead send them to the home page
  70       redirect_to @referer || { :controller => "site", :action => "index" }
  71     elsif params.key?(:auth_provider) && params.key?(:auth_uid)
  72       self.current_user = User.new(:email => params[:email],
  73                                    :email_confirmation => params[:email],
  74                                    :display_name => params[:nickname],
  75                                    :auth_provider => params[:auth_provider],
  76                                    :auth_uid => params[:auth_uid])
  77
  78       flash.now[:notice] = render_to_string :partial => "auth_association"
  79     else
  80       check_signup_allowed
  81
  82       self.current_user = User.new
  83     end
  84   end
  85
  86   def create
  87     self.current_user = User.new(user_params)
  88
  89     if check_signup_allowed(current_user.email)
  90       session[:referer] = safe_referer(params[:referer]) if params[:referer]
  91
  92       Rails.logger.info "create: #{session[:referer]}"
  93
  94       if current_user.auth_provider.present? && current_user.pass_crypt.empty?
  95         # We are creating an account with external authentication and
  96         # no password was specified so create a random one
  97         current_user.pass_crypt = SecureRandom.base64(16)
  98         current_user.pass_crypt_confirmation = current_user.pass_crypt
  99       end
 100
 101       if current_user.invalid?
 102         # Something is wrong with a new user, so rerender the form
 103         render :action => "new"
 104       elsif current_user.auth_provider.present?
 105         # Verify external authenticator before moving on
 106         session[:new_user] = current_user
 107         redirect_to auth_url(current_user.auth_provider, current_user.auth_uid), :status => :temporary_redirect
 108       else
 109         # Save the user record
 110         session[:new_user] = current_user
 111         redirect_to :action => :terms
 112       end
 113     end
 114   end
 115
 116   ##
 117   # destroy a user, marking them as deleted and removing personal data
 118   def destroy
 119     @user.soft_destroy!
 120     redirect_to user_path(:display_name => params[:display_name])
 121   end
 122
 123   def terms
 124     @legale = params[:legale] || OSM.ip_to_country(request.remote_ip) || Settings.default_legale
 125     @text = OSM.legal_text_for_country(@legale)
 126
 127     if request.xhr?
 128       render :partial => "terms"
 129     else
 130       @title = t ".title"
 131
 132       if current_user&.terms_agreed?
 133         # Already agreed to terms, so just show settings
 134         redirect_to edit_account_path
 135       elsif current_user.nil? && session[:new_user].nil?
 136         redirect_to login_path(:referer => request.fullpath)
 137       end
 138     end
 139   end
 140
 141   def save
 142     @title = t "users.new.title"
 143
 144     if params[:decline] || !(params[:read_tou] && params[:read_ct])
 145       if current_user
 146         current_user.terms_seen = true
 147
 148         flash[:notice] = { :partial => "users/terms_declined_flash" } if current_user.save
 149
 150         referer = safe_referer(params[:referer]) if params[:referer]
 151
 152         redirect_to referer || edit_account_path
 153       elsif params[:decline]
 154         redirect_to t("users.terms.declined"), :allow_other_host => true
 155       else
 156         redirect_to :action => :terms
 157       end
 158     elsif current_user
 159       unless current_user.terms_agreed?
 160         current_user.consider_pd = params[:user][:consider_pd]
 161         current_user.tou_agreed = Time.now.utc
 162         current_user.terms_agreed = Time.now.utc
 163         current_user.terms_seen = true
 164
 165         flash[:notice] = t "users.new.terms accepted" if current_user.save
 166       end
 167
 168       referer = safe_referer(params[:referer]) if params[:referer]
 169
 170       redirect_to referer || edit_account_path
 171     else
 172       self.current_user = session.delete(:new_user)
 173
 174       if check_signup_allowed(current_user.email)
 175         current_user.data_public = true
 176         current_user.description = "" if current_user.description.nil?
 177         current_user.creation_ip = request.remote_ip
 178         current_user.languages = http_accept_language.user_preferred_languages
 179         current_user.terms_agreed = Time.now.utc
 180         current_user.tou_agreed = Time.now.utc
 181         current_user.terms_seen = true
 182
 183         if current_user.auth_uid.blank?
 184           current_user.auth_provider = nil
 185           current_user.auth_uid = nil
 186         end
 187
 188         if current_user.save
 189           SIGNUP_IP_LIMITER&.update(request.remote_ip)
 190           SIGNUP_EMAIL_LIMITER&.update(canonical_email(current_user.email))
 191
 192           flash[:matomo_goal] = Settings.matomo["goals"]["signup"] if defined?(Settings.matomo)
 193
 194           referer = welcome_path
 195
 196           begin
 197             uri = URI(session[:referer])
 198             %r{map=(.*)/(.*)/(.*)}.match(uri.fragment) do |m|
 199               editor = Rack::Utils.parse_query(uri.query).slice("editor")
 200               referer = welcome_path({ "zoom" => m[1],
 201                                        "lat" => m[2],
 202                                        "lon" => m[3] }.merge(editor))
 203             end
 204           rescue StandardError
 205             # Use default
 206           end
 207
 208           if current_user.status == "active"
 209             session[:referer] = referer
 210             successful_login(current_user)
 211           else
 212             session[:token] = current_user.tokens.create.token
 213             UserMailer.signup_confirm(current_user, current_user.tokens.create(:referer => referer)).deliver_later
 214             redirect_to :controller => :confirmations, :action => :confirm, :display_name => current_user.display_name
 215           end
 216         else
 217           render :action => "new", :referer => params[:referer]
 218         end
 219       end
 220     end
 221   end
 222
 223   def go_public
 224     current_user.data_public = true
 225     current_user.save
 226     flash[:notice] = t ".flash success"
 227     redirect_to edit_account_path
 228   end
 229
 230   ##
 231   # sets a user's status
 232   def set_status
 233     @user.activate! if params[:event] == "activate"
 234     @user.confirm! if params[:event] == "confirm"
 235     @user.unconfirm! if params[:event] == "unconfirm"
 236     @user.hide! if params[:event] == "hide"
 237     @user.unhide! if params[:event] == "unhide"
 238     @user.unsuspend! if params[:event] == "unsuspend"
 239     redirect_to user_path(:display_name => params[:display_name])
 240   end
 241
 242   ##
 243   # omniauth success callback
 244   def auth_success
 245     auth_info = request.env["omniauth.auth"]
 246
 247     provider = auth_info[:provider]
 248     uid = auth_info[:uid]
 249     name = auth_info[:info][:name]
 250     email = auth_info[:info][:email]
 251
 252     email_verified = case provider
 253                      when "openid"
 254                        uid.match(%r{https://www.google.com/accounts/o8/id?(.*)}) ||
 255                        uid.match(%r{https://me.yahoo.com/(.*)})
 256                      when "google", "facebook", "microsoft"
 257                        true
 258                      else
 259                        false
 260                      end
 261
 262     if settings = session.delete(:new_user_settings)
 263       current_user.auth_provider = provider
 264       current_user.auth_uid = uid
 265
 266       update_user(current_user, settings)
 267
 268       flash.discard
 269
 270       session[:user_errors] = current_user.errors.as_json
 271
 272       redirect_to edit_account_path
 273     elsif session[:new_user]
 274       session[:new_user].auth_provider = provider
 275       session[:new_user].auth_uid = uid
 276
 277       session[:new_user].activate if email_verified && email == session[:new_user].email
 278
 279       redirect_to :action => "terms"
 280     else
 281       user = User.find_by(:auth_provider => provider, :auth_uid => uid)
 282
 283       if user.nil? && provider == "google"
 284         openid_url = auth_info[:extra][:id_info]["openid_id"]
 285         user = User.find_by(:auth_provider => "openid", :auth_uid => openid_url) if openid_url
 286         user&.update(:auth_provider => provider, :auth_uid => uid)
 287       end
 288
 289       if user
 290         case user.status
 291         when "pending"
 292           unconfirmed_login(user)
 293         when "active", "confirmed"
 294           successful_login(user, request.env["omniauth.params"]["referer"])
 295         when "suspended"
 296           failed_login({ :partial => "sessions/suspended_flash" })
 297         else
 298           failed_login t("sessions.new.auth failure")
 299         end
 300       else
 301         redirect_to :action => "new", :nickname => name, :email => email,
 302                     :auth_provider => provider, :auth_uid => uid
 303       end
 304     end
 305   end
 306
 307   ##
 308   # omniauth failure callback
 309   def auth_failure
 310     flash[:error] = t(params[:message], :scope => "users.auth_failure", :default => t(".unknown_error"))
 311
 312     origin = safe_referer(params[:origin]) if params[:origin]
 313
 314     redirect_to origin || login_url
 315   end
 316
 317   private
 318
 319   ##
 320   # ensure that there is a "user" instance variable
 321   def lookup_user_by_name
 322     @user = User.find_by(:display_name => params[:display_name])
 323   rescue ActiveRecord::RecordNotFound
 324     redirect_to :action => "view", :display_name => params[:display_name] unless @user
 325   end
 326
 327   ##
 328   # return permitted user parameters
 329   def user_params
 330     params.require(:user).permit(:email, :email_confirmation, :display_name,
 331                                  :auth_provider, :auth_uid,
 332                                  :pass_crypt, :pass_crypt_confirmation)
 333   end
 334
 335   ##
 336   # check signup acls
 337   def check_signup_allowed(email = nil)
 338     domain = if email.nil?
 339                nil
 340              else
 341                email.split("@").last
 342              end
 343
 344     mx_servers = if domain.nil?
 345                    nil
 346                  else
 347                    domain_mx_servers(domain)
 348                  end
 349
 350     blocked = Acl.no_account_creation(request.remote_ip, :domain => domain, :mx => mx_servers)
 351
 352     blocked ||= SIGNUP_IP_LIMITER && !SIGNUP_IP_LIMITER.allow?(request.remote_ip)
 353
 354     blocked ||= email && SIGNUP_EMAIL_LIMITER && !SIGNUP_EMAIL_LIMITER.allow?(canonical_email(email))
 355
 356     if blocked
 357       logger.info "Blocked signup from #{request.remote_ip} for #{email}"
 358
 359       render :action => "blocked"
 360     end
 361
 362     !blocked
 363   end
 364
 365   def canonical_email(email)
 366     local_part, domain = if email.nil?
 367                            nil
 368                          else
 369                            email.split("@")
 370                          end
 371
 372     local_part.sub!(/\+.*$/, "")
 373
 374     local_part.delete!(".") if %w[gmail.com googlemail.com].include?(domain)
 375
 376     "#{local_part}@#{domain}"
 377   end
 378
 379   ##
 380   # get list of MX servers for a domains
 381   def domain_mx_servers(domain)
 382     Resolv::DNS.open do |dns|
 383       dns.getresources(domain, Resolv::DNS::Resource::IN::MX).collect { |mx| mx.exchange.to_s }
 384     end
 385   end
 386 end