app/controllers/users_controller.rb

   1 # frozen_string_literal: true
   2
   3 class UsersController < ApplicationController
   4   include EmailMethods
   5   include SessionMethods
   6   include UserMethods
   7
   8   layout :site_layout
   9
  10   skip_before_action :verify_authenticity_token, :only => [:auth_success]
  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
  20   allow_thirdparty_images :only => :show
  21   allow_social_login :only => :new
  22
  23   content_security_policy(:only => :new) do |policy|
  24     if Settings.turnstile_site_key
  25       policy.frame_src(*policy.frame_src, "challenges.cloudflare.com")
  26       policy.script_src(*policy.script_src, "challenges.cloudflare.com")
  27     end
  28   end
  29
  30   def show
  31     @user = User.find_by(:display_name => params[:display_name])
  32
  33     if @user && (@user.visible? || current_user&.administrator?)
  34       @title = @user.display_name
  35       @heatmap_frame = @user.public_heatmap?
  36     else
  37       render_unknown_user params[:display_name]
  38     end
  39   end
  40
  41   def new
  42     @title = t ".title"
  43     @referer = safe_referer(params[:referer])
  44
  45     parse_oauth_referer @referer
  46
  47     if current_user
  48       # The user is logged in already, so don't show them the signup
  49       # page, instead send them to the home page
  50       redirect_to @referer || { :controller => "site", :action => "index" }
  51     elsif params.key?(:auth_provider) && params.key?(:auth_uid)
  52       @email_hmac = params[:email_hmac]
  53
  54       self.current_user = User.new(:email => params[:email],
  55                                    :display_name => params[:nickname],
  56                                    :auth_provider => params[:auth_provider],
  57                                    :auth_uid => params[:auth_uid])
  58
  59       if current_user.valid? || current_user.errors[:email].empty?
  60         flash.now[:notice] = render_to_string :partial => "auth_association"
  61       else
  62         flash.now[:warning] = t ".duplicate_social_email"
  63       end
  64     elsif check_signup_allowed?
  65       self.current_user = User.new
  66     else
  67       render :action => "blocked"
  68     end
  69   end
  70
  71   def create
  72     self.current_user = User.new(user_params)
  73
  74     if check_signup_allowed?(current_user.email)
  75       if current_user.auth_uid.present?
  76         # We are creating an account with external authentication and
  77         # no password was specified so create a random one
  78         current_user.pass_crypt = SecureRandom.base64(16)
  79         current_user.pass_crypt_confirmation = current_user.pass_crypt
  80       end
  81
  82       if current_user.invalid?
  83         # Something is wrong with a new user, so rerender the form
  84         render :action => "new"
  85       elsif Settings.turnstile_site_key && !valid_turnstile_response?(params["cf-turnstile-response"])
  86         # Invalid turnstile response, so rerender the form
  87         flash.now[:error] = t ".not_human"
  88         render :action => "new"
  89       else
  90         # Save the user record
  91         if save_new_user params[:email_hmac]
  92           SIGNUP_IP_LIMITER&.update(request.remote_ip)
  93           SIGNUP_EMAIL_LIMITER&.update(canonical_email(current_user.email))
  94
  95           flash[:matomo_goal] = Settings.matomo["goals"]["signup"] if defined?(Settings.matomo)
  96
  97           referer = welcome_path(welcome_options(params[:referer]))
  98
  99           if current_user.status == "active"
 100             successful_login(current_user, referer)
 101           else
 102             session[:pending_user] = current_user.id
 103             UserMailer.with(
 104               :user => current_user,
 105               :token => current_user.generate_token_for(:new_user),
 106               :referer => referer
 107             ).signup_confirm.deliver_later
 108             redirect_to :controller => :confirmations, :action => :confirm, :display_name => current_user.display_name
 109           end
 110         else
 111           render :action => "new", :referer => params[:referer]
 112         end
 113       end
 114     else
 115       render :action => "blocked"
 116     end
 117   end
 118
 119   def go_public
 120     current_user.data_public = true
 121     current_user.save
 122     flash[:notice] = t ".flash success"
 123     redirect_to account_path
 124   end
 125
 126   ##
 127   # omniauth success callback
 128   def auth_success
 129     referer = request.env["omniauth.params"]["referer"]
 130     auth_info = request.env["omniauth.auth"]
 131
 132     provider = auth_info[:provider]
 133     uid = auth_info[:uid]
 134     name = auth_info[:info][:name]
 135     email = auth_info[:info][:email]
 136
 137     email_verified = case provider
 138                      when "google", "apple", "facebook", "microsoft", "github", "wikipedia"
 139                        true
 140                      else
 141                        false
 142                      end
 143
 144     if settings = session.delete(:new_user_settings)
 145       current_user.auth_provider = provider
 146       current_user.auth_uid = uid
 147
 148       update_user(current_user, settings)
 149
 150       flash.discard
 151
 152       session[:user_errors] = current_user.errors.as_json
 153
 154       redirect_to account_path
 155     else
 156       user = User.find_by(:auth_provider => provider, :auth_uid => uid)
 157
 158       if user.nil? && provider == "google"
 159         openid_url = auth_info[:extra][:id_info]["openid_id"]
 160         user = User.find_by(:auth_provider => "openid", :auth_uid => openid_url) if openid_url
 161         user&.update(:auth_provider => provider, :auth_uid => uid)
 162       end
 163
 164       if user
 165         case user.status
 166         when "pending"
 167           unconfirmed_login(user, referer)
 168         when "active", "confirmed"
 169           successful_login(user, referer)
 170         when "suspended"
 171           failed_login({ :partial => "sessions/suspended_flash" }, user.display_name, referer)
 172         else
 173           failed_login(t("sessions.new.auth failure"), user.display_name, referer)
 174         end
 175       else
 176         email_hmac = UsersController.message_hmac(email) if email_verified && email
 177         redirect_to :action => "new", :nickname => name, :email => email, :email_hmac => email_hmac,
 178                     :auth_provider => provider, :auth_uid => uid, :referer => referer
 179       end
 180     end
 181   end
 182
 183   ##
 184   # omniauth failure callback
 185   def auth_failure
 186     flash[:error] = t(params[:message], :scope => "users.auth_failure", :default => t(".unknown_error"))
 187
 188     origin = safe_referer(params[:origin]) if params[:origin]
 189
 190     redirect_to origin || login_url
 191   end
 192
 193   def self.message_hmac(text)
 194     sha256 = Digest::SHA256.new
 195     sha256 << Rails.application.key_generator.generate_key("openstreetmap/email_address")
 196     sha256 << text
 197     Base64.urlsafe_encode64(sha256.digest)
 198   end
 199
 200   private
 201
 202   def save_new_user(email_hmac)
 203     current_user.data_public = true
 204     current_user.description = "" if current_user.description.nil?
 205     current_user.creation_address = request.remote_ip
 206     current_user.languages = if request.cookies["_osm_locale"]
 207                                Locale.list(request.cookies["_osm_locale"])
 208                              else
 209                                http_accept_language.user_preferred_languages
 210                              end
 211     current_user.terms_agreed = Time.now.utc
 212     current_user.tou_agreed = Time.now.utc
 213     current_user.terms_seen = true
 214
 215     if current_user.auth_uid.blank?
 216       current_user.auth_provider = nil
 217       current_user.auth_uid = nil
 218     elsif email_hmac && ActiveSupport::SecurityUtils.secure_compare(email_hmac, UsersController.message_hmac(current_user.email))
 219       current_user.activate
 220     end
 221
 222     current_user.save
 223   end
 224
 225   def welcome_options(referer = nil)
 226     uri = URI(referer) if referer.present?
 227
 228     return { "oauth_return_url" => uri&.to_s } if uri&.path == oauth_authorization_path
 229
 230     begin
 231       %r{map=(.*)/(.*)/(.*)}.match(uri.fragment) do |m|
 232         editor = Rack::Utils.parse_query(uri.query).slice("editor")
 233         return { "zoom" => m[1], "lat" => m[2], "lon" => m[3] }.merge(editor)
 234       end
 235     rescue StandardError
 236       # Use default
 237     end
 238   end
 239
 240   ##
 241   # return permitted user parameters
 242   def user_params
 243     params.expect(:user => [:email, :display_name,
 244                             :auth_provider, :auth_uid,
 245                             :pass_crypt, :pass_crypt_confirmation])
 246   end
 247
 248   ##
 249   # check signup acls
 250   def check_signup_allowed?(email = nil)
 251     domain = if email.nil?
 252                nil
 253              else
 254                email.split("@").last
 255              end
 256
 257     mx_servers = if domain.nil?
 258                    nil
 259                  else
 260                    domain_mx_servers(domain)
 261                  end
 262
 263     return true if Acl.allow_account_creation?(request.remote_ip, :domain => domain, :mx => mx_servers)
 264
 265     blocked = Acl.no_account_creation?(request.remote_ip, :domain => domain, :mx => mx_servers)
 266
 267     blocked ||= SIGNUP_IP_LIMITER && !SIGNUP_IP_LIMITER.allow?(request.remote_ip)
 268
 269     blocked ||= email && SIGNUP_EMAIL_LIMITER && !SIGNUP_EMAIL_LIMITER.allow?(canonical_email(email))
 270
 271     logger.info "Blocked signup from #{request.remote_ip} for #{email}" if blocked
 272
 273     !blocked
 274   end
 275
 276   ##
 277   # check if a turnstile response is valid
 278   def valid_turnstile_response?(turnstile_response)
 279     response = OSM.http_client.post("https://challenges.cloudflare.com/turnstile/v0/siteverify", {
 280                                       :secret => Settings.turnstile_secret_key,
 281                                       :response => turnstile_response,
 282                                       :remoteip => request.remote_ip
 283                                     })
 284
 285     return false unless response.success?
 286
 287     parsed_response = JSON.parse(response.body)
 288
 289     parsed_response["success"]
 290   end
 291 end