app/controllers/users_controller.rb

   1 class UsersController < ApplicationController
   2   include EmailMethods
   3   include SessionMethods
   4   include UserMethods
   5   include PaginationMethods
   6
   7   layout "site"
   8
   9   skip_before_action :verify_authenticity_token, :only => [:auth_success]
  10   before_action :disable_terms_redirect, :only => [:terms, :save]
  11   before_action :authorize_web
  12   before_action :set_locale
  13   before_action :check_database_readable
  14
  15   authorize_resource
  16
  17   before_action :check_database_writable, :only => [:new, :go_public]
  18   before_action :require_cookies, :only => [:new]
  19   before_action :lookup_user_by_name, :only => [:set_status, :destroy]
  20   before_action :allow_thirdparty_images, :only => [:show]
  21
  22   ##
  23   # display a list of users matching specified criteria
  24   def index
  25     if request.post?
  26       ids = params[:user].keys.collect(&:to_i)
  27
  28       User.where(:id => ids).update_all(:status => "confirmed") if params[:confirm]
  29       User.where(:id => ids).update_all(:status => "deleted") if params[:hide]
  30
  31       redirect_to url_for(:status => params[:status], :ip => params[:ip], :page => params[:page])
  32     else
  33       @params = params.permit(:status, :ip, :before, :after)
  34
  35       users = User.all
  36       users = users.where(:status => @params[:status]) if @params[:status]
  37       users = users.where(:creation_ip => @params[:ip]) if @params[:ip]
  38
  39       @users_count = users.count
  40       @users, @newer_users_id, @older_users_id = get_page_items(users, :limit => 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     parse_oauth_referer @referer
  64
  65     append_content_security_policy_directives(
  66       :form_action => %w[accounts.google.com *.facebook.com login.live.com github.com meta.wikimedia.org]
  67     )
  68
  69     if current_user
  70       # The user is logged in already, so don't show them the signup
  71       # page, instead send them to the home page
  72       redirect_to @referer || { :controller => "site", :action => "index" }
  73     elsif params.key?(:auth_provider) && params.key?(:auth_uid)
  74       @email_hmac = params[:email_hmac]
  75
  76       self.current_user = User.new(:email => params[:email],
  77                                    :display_name => params[:nickname],
  78                                    :auth_provider => params[:auth_provider],
  79                                    :auth_uid => params[:auth_uid])
  80
  81       flash.now[:notice] = render_to_string :partial => "auth_association"
  82
  83       # validate before displaying to show email field if it conflicts
  84       flash.now[:notice] = t ".duplicate_social_email" unless current_user.valid? && current_user.errors[:email].empty?
  85     else
  86       check_signup_allowed
  87
  88       self.current_user = User.new
  89     end
  90   end
  91
  92   def create
  93     self.current_user = User.new(user_params)
  94
  95     if check_signup_allowed(current_user.email)
  96       session[:referer] = safe_referer(params[:referer]) if params[:referer]
  97
  98       Rails.logger.info "create: #{session[:referer]}"
  99
 100       if current_user.auth_uid.present?
 101         # We are creating an account with external authentication and
 102         # no password was specified so create a random one
 103         current_user.pass_crypt = SecureRandom.base64(16)
 104         current_user.pass_crypt_confirmation = current_user.pass_crypt
 105       end
 106
 107       if current_user.invalid?
 108         # Something is wrong with a new user, so rerender the form
 109         render :action => "new"
 110       elsif current_user.auth_provider.present?
 111         # Verify external authenticator before moving on
 112         session[:new_user] = current_user.slice("email", "display_name", "pass_crypt", "pass_crypt_confirmation")
 113         redirect_to auth_url(current_user.auth_provider, current_user.auth_uid), :status => :temporary_redirect
 114       else
 115         # Save the user record
 116         session[:new_user] = current_user.slice("email", "display_name", "pass_crypt", "pass_crypt_confirmation")
 117         save_new_user params[:email_hmac]
 118       end
 119     end
 120   end
 121
 122   ##
 123   # destroy a user, marking them as deleted and removing personal data
 124   def destroy
 125     @user.soft_destroy!
 126     redirect_to user_path(:display_name => params[:display_name])
 127   end
 128
 129   def terms
 130     @legale = params[:legale] || OSM.ip_to_country(request.remote_ip) || Settings.default_legale
 131     @text = OSM.legal_text_for_country(@legale)
 132
 133     if request.xhr?
 134       render :partial => "terms"
 135     else
 136       @title = t ".title"
 137
 138       if current_user&.terms_agreed?
 139         # Already agreed to terms, so just show settings
 140         redirect_to edit_account_path
 141       elsif current_user.nil?
 142         redirect_to login_path(:referer => request.fullpath)
 143       end
 144     end
 145   end
 146
 147   def save
 148     @title = t "users.new.title"
 149
 150     if params[:decline] || !(params[:read_tou] && params[:read_ct])
 151       if current_user
 152         current_user.terms_seen = true
 153
 154         flash[:notice] = { :partial => "users/terms_declined_flash" } if current_user.save
 155
 156         referer = safe_referer(params[:referer]) if params[:referer]
 157
 158         redirect_to referer || edit_account_path
 159       elsif params[:decline]
 160         redirect_to t("users.terms.declined"), :allow_other_host => true
 161       else
 162         redirect_to :action => :terms
 163       end
 164     elsif current_user
 165       unless current_user.terms_agreed?
 166         current_user.consider_pd = params[:user][:consider_pd]
 167         current_user.tou_agreed = Time.now.utc
 168         current_user.terms_agreed = Time.now.utc
 169         current_user.terms_seen = true
 170
 171         flash[:notice] = t "users.new.terms accepted" if current_user.save
 172       end
 173
 174       referer = safe_referer(params[:referer]) if params[:referer]
 175
 176       redirect_to referer || edit_account_path
 177     end
 178   end
 179
 180   def go_public
 181     current_user.data_public = true
 182     current_user.save
 183     flash[:notice] = t ".flash success"
 184     redirect_to edit_account_path
 185   end
 186
 187   ##
 188   # sets a user's status
 189   def set_status
 190     @user.activate! if params[:event] == "activate"
 191     @user.confirm! if params[:event] == "confirm"
 192     @user.unconfirm! if params[:event] == "unconfirm"
 193     @user.hide! if params[:event] == "hide"
 194     @user.unhide! if params[:event] == "unhide"
 195     @user.unsuspend! if params[:event] == "unsuspend"
 196     redirect_to user_path(:display_name => params[:display_name])
 197   end
 198
 199   ##
 200   # omniauth success callback
 201   def auth_success
 202     auth_info = request.env["omniauth.auth"]
 203
 204     provider = auth_info[:provider]
 205     uid = auth_info[:uid]
 206     name = auth_info[:info][:name]
 207     email = auth_info[:info][:email]
 208
 209     email_verified = case provider
 210                      when "openid"
 211                        uid.match(%r{https://www.google.com/accounts/o8/id?(.*)}) ||
 212                        uid.match(%r{https://me.yahoo.com/(.*)})
 213                      when "google", "facebook", "microsoft", "github", "wikipedia"
 214                        true
 215                      else
 216                        false
 217                      end
 218
 219     if settings = session.delete(:new_user_settings)
 220       current_user.auth_provider = provider
 221       current_user.auth_uid = uid
 222
 223       update_user(current_user, settings)
 224
 225       flash.discard
 226
 227       session[:user_errors] = current_user.errors.as_json
 228
 229       redirect_to edit_account_path
 230     elsif session[:new_user]
 231       session[:new_user]["auth_provider"] = provider
 232       session[:new_user]["auth_uid"] = uid
 233
 234       email_hmac = UsersController.message_hmac(email) if email_verified && email
 235       save_new_user email_hmac
 236     else
 237       user = User.find_by(:auth_provider => provider, :auth_uid => uid)
 238
 239       if user.nil? && provider == "google"
 240         openid_url = auth_info[:extra][:id_info]["openid_id"]
 241         user = User.find_by(:auth_provider => "openid", :auth_uid => openid_url) if openid_url
 242         user&.update(:auth_provider => provider, :auth_uid => uid)
 243       end
 244
 245       if user
 246         case user.status
 247         when "pending"
 248           unconfirmed_login(user)
 249         when "active", "confirmed"
 250           successful_login(user, request.env["omniauth.params"]["referer"])
 251         when "suspended"
 252           failed_login({ :partial => "sessions/suspended_flash" })
 253         else
 254           failed_login t("sessions.new.auth failure")
 255         end
 256       else
 257         email_hmac = UsersController.message_hmac(email) if email_verified && email
 258         redirect_to :action => "new", :nickname => name, :email => email, :email_hmac => email_hmac,
 259                     :auth_provider => provider, :auth_uid => uid
 260       end
 261     end
 262   end
 263
 264   ##
 265   # omniauth failure callback
 266   def auth_failure
 267     flash[:error] = t(params[:message], :scope => "users.auth_failure", :default => t(".unknown_error"))
 268
 269     origin = safe_referer(params[:origin]) if params[:origin]
 270
 271     redirect_to origin || login_url
 272   end
 273
 274   def self.message_hmac(text)
 275     sha256 = Digest::SHA256.new
 276     sha256 << Rails.application.key_generator.generate_key("openstreetmap/email_address")
 277     sha256 << text
 278     Base64.urlsafe_encode64(sha256.digest)
 279   end
 280
 281   private
 282
 283   def save_new_user(email_hmac)
 284     new_user = session.delete(:new_user)
 285     self.current_user = User.new(new_user)
 286     if check_signup_allowed(current_user.email)
 287       current_user.data_public = true
 288       current_user.description = "" if current_user.description.nil?
 289       current_user.creation_ip = request.remote_ip
 290       current_user.languages = http_accept_language.user_preferred_languages
 291       current_user.terms_agreed = Time.now.utc
 292       current_user.tou_agreed = Time.now.utc
 293       current_user.terms_seen = true
 294
 295       if current_user.auth_uid.blank?
 296         current_user.auth_provider = nil
 297         current_user.auth_uid = nil
 298       elsif email_hmac && ActiveSupport::SecurityUtils.secure_compare(email_hmac, UsersController.message_hmac(current_user.email))
 299         current_user.activate
 300       end
 301
 302       if current_user.save
 303         SIGNUP_IP_LIMITER&.update(request.remote_ip)
 304         SIGNUP_EMAIL_LIMITER&.update(canonical_email(current_user.email))
 305
 306         flash[:matomo_goal] = Settings.matomo["goals"]["signup"] if defined?(Settings.matomo)
 307
 308         referer = welcome_path(welcome_options)
 309
 310         if current_user.status == "active"
 311           session[:referer] = referer
 312           successful_login(current_user)
 313         else
 314           session[:pending_user] = current_user.id
 315           UserMailer.signup_confirm(current_user, current_user.generate_token_for(:new_user), referer).deliver_later
 316           redirect_to :controller => :confirmations, :action => :confirm, :display_name => current_user.display_name
 317         end
 318       else
 319         render :action => "new", :referer => params[:referer]
 320       end
 321     end
 322   end
 323
 324   def welcome_options
 325     uri = URI(session[:referer]) if session[:referer].present?
 326
 327     return { "oauth_return_url" => uri&.to_s } if uri&.path == oauth_authorization_path
 328
 329     begin
 330       %r{map=(.*)/(.*)/(.*)}.match(uri.fragment) do |m|
 331         editor = Rack::Utils.parse_query(uri.query).slice("editor")
 332         return { "zoom" => m[1], "lat" => m[2], "lon" => m[3] }.merge(editor)
 333       end
 334     rescue StandardError
 335       # Use default
 336     end
 337   end
 338
 339   ##
 340   # ensure that there is a "user" instance variable
 341   def lookup_user_by_name
 342     @user = User.find_by(:display_name => params[:display_name])
 343   rescue ActiveRecord::RecordNotFound
 344     redirect_to :action => "view", :display_name => params[:display_name] unless @user
 345   end
 346
 347   ##
 348   # return permitted user parameters
 349   def user_params
 350     params.require(:user).permit(:email, :display_name,
 351                                  :auth_provider, :auth_uid,
 352                                  :pass_crypt, :pass_crypt_confirmation,
 353                                  :consider_pd)
 354   end
 355
 356   ##
 357   # check signup acls
 358   def check_signup_allowed(email = nil)
 359     domain = if email.nil?
 360                nil
 361              else
 362                email.split("@").last
 363              end
 364
 365     mx_servers = if domain.nil?
 366                    nil
 367                  else
 368                    domain_mx_servers(domain)
 369                  end
 370
 371     return true if Acl.allow_account_creation(request.remote_ip, :domain => domain, :mx => mx_servers)
 372
 373     blocked = Acl.no_account_creation(request.remote_ip, :domain => domain, :mx => mx_servers)
 374
 375     blocked ||= SIGNUP_IP_LIMITER && !SIGNUP_IP_LIMITER.allow?(request.remote_ip)
 376
 377     blocked ||= email && SIGNUP_EMAIL_LIMITER && !SIGNUP_EMAIL_LIMITER.allow?(canonical_email(email))
 378
 379     if blocked
 380       logger.info "Blocked signup from #{request.remote_ip} for #{email}"
 381
 382       render :action => "blocked"
 383     end
 384
 385     !blocked
 386   end
 387 end