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.signup_confirm(current_user, current_user.generate_token_for(:new_user), referer).deliver_later
 104             redirect_to :controller => :confirmations, :action => :confirm, :display_name => current_user.display_name
 105           end
 106         else
 107           render :action => "new", :referer => params[:referer]
 108         end
 109       end
 110     else
 111       render :action => "blocked"
 112     end
 113   end
 114
 115   def go_public
 116     current_user.data_public = true
 117     current_user.save
 118     flash[:notice] = t ".flash success"
 119     redirect_to account_path
 120   end
 121
 122   ##
 123   # omniauth success callback
 124   def auth_success
 125     referer = request.env["omniauth.params"]["referer"]
 126     auth_info = request.env["omniauth.auth"]
 127
 128     provider = auth_info[:provider]
 129     uid = auth_info[:uid]
 130     name = auth_info[:info][:name]
 131     email = auth_info[:info][:email]
 132
 133     email_verified = case provider
 134                      when "google", "apple", "facebook", "microsoft", "github", "wikipedia"
 135                        true
 136                      else
 137                        false
 138                      end
 139
 140     if settings = session.delete(:new_user_settings)
 141       current_user.auth_provider = provider
 142       current_user.auth_uid = uid
 143
 144       update_user(current_user, settings)
 145
 146       flash.discard
 147
 148       session[:user_errors] = current_user.errors.as_json
 149
 150       redirect_to account_path
 151     else
 152       user = User.find_by(:auth_provider => provider, :auth_uid => uid)
 153
 154       if user.nil? && provider == "google"
 155         openid_url = auth_info[:extra][:id_info]["openid_id"]
 156         user = User.find_by(:auth_provider => "openid", :auth_uid => openid_url) if openid_url
 157         user&.update(:auth_provider => provider, :auth_uid => uid)
 158       end
 159
 160       if user
 161         case user.status
 162         when "pending"
 163           unconfirmed_login(user, referer)
 164         when "active", "confirmed"
 165           successful_login(user, referer)
 166         when "suspended"
 167           failed_login({ :partial => "sessions/suspended_flash" }, user.display_name, referer)
 168         else
 169           failed_login(t("sessions.new.auth failure"), user.display_name, referer)
 170         end
 171       else
 172         email_hmac = UsersController.message_hmac(email) if email_verified && email
 173         redirect_to :action => "new", :nickname => name, :email => email, :email_hmac => email_hmac,
 174                     :auth_provider => provider, :auth_uid => uid, :referer => referer
 175       end
 176     end
 177   end
 178
 179   ##
 180   # omniauth failure callback
 181   def auth_failure
 182     flash[:error] = t(params[:message], :scope => "users.auth_failure", :default => t(".unknown_error"))
 183
 184     origin = safe_referer(params[:origin]) if params[:origin]
 185
 186     redirect_to origin || login_url
 187   end
 188
 189   def self.message_hmac(text)
 190     sha256 = Digest::SHA256.new
 191     sha256 << Rails.application.key_generator.generate_key("openstreetmap/email_address")
 192     sha256 << text
 193     Base64.urlsafe_encode64(sha256.digest)
 194   end
 195
 196   private
 197
 198   def save_new_user(email_hmac)
 199     current_user.data_public = true
 200     current_user.description = "" if current_user.description.nil?
 201     current_user.creation_address = request.remote_ip
 202     current_user.languages = if request.cookies["_osm_locale"]
 203                                Locale.list(request.cookies["_osm_locale"])
 204                              else
 205                                http_accept_language.user_preferred_languages
 206                              end
 207     current_user.terms_agreed = Time.now.utc
 208     current_user.tou_agreed = Time.now.utc
 209     current_user.terms_seen = true
 210
 211     if current_user.auth_uid.blank?
 212       current_user.auth_provider = nil
 213       current_user.auth_uid = nil
 214     elsif email_hmac && ActiveSupport::SecurityUtils.secure_compare(email_hmac, UsersController.message_hmac(current_user.email))
 215       current_user.activate
 216     end
 217
 218     current_user.save
 219   end
 220
 221   def welcome_options(referer = nil)
 222     uri = URI(referer) if referer.present?
 223
 224     return { "oauth_return_url" => uri&.to_s } if uri&.path == oauth_authorization_path
 225
 226     begin
 227       %r{map=(.*)/(.*)/(.*)}.match(uri.fragment) do |m|
 228         editor = Rack::Utils.parse_query(uri.query).slice("editor")
 229         return { "zoom" => m[1], "lat" => m[2], "lon" => m[3] }.merge(editor)
 230       end
 231     rescue StandardError
 232       # Use default
 233     end
 234   end
 235
 236   ##
 237   # return permitted user parameters
 238   def user_params
 239     params.expect(:user => [:email, :display_name,
 240                             :auth_provider, :auth_uid,
 241                             :pass_crypt, :pass_crypt_confirmation])
 242   end
 243
 244   ##
 245   # check signup acls
 246   def check_signup_allowed?(email = nil)
 247     domain = if email.nil?
 248                nil
 249              else
 250                email.split("@").last
 251              end
 252
 253     mx_servers = if domain.nil?
 254                    nil
 255                  else
 256                    domain_mx_servers(domain)
 257                  end
 258
 259     return true if Acl.allow_account_creation?(request.remote_ip, :domain => domain, :mx => mx_servers)
 260
 261     blocked = Acl.no_account_creation?(request.remote_ip, :domain => domain, :mx => mx_servers)
 262
 263     blocked ||= SIGNUP_IP_LIMITER && !SIGNUP_IP_LIMITER.allow?(request.remote_ip)
 264
 265     blocked ||= email && SIGNUP_EMAIL_LIMITER && !SIGNUP_EMAIL_LIMITER.allow?(canonical_email(email))
 266
 267     logger.info "Blocked signup from #{request.remote_ip} for #{email}" if blocked
 268
 269     !blocked
 270   end
 271
 272   ##
 273   # check if a turnstile response is valid
 274   def valid_turnstile_response?(turnstile_response)
 275     response = OSM.http_client.post("https://challenges.cloudflare.com/turnstile/v0/siteverify", {
 276                                       :secret => Settings.turnstile_secret_key,
 277                                       :response => turnstile_response,
 278                                       :remoteip => request.remote_ip
 279                                     })
 280
 281     return false unless response.success?
 282
 283     parsed_response = JSON.parse(response.body)
 284
 285     parsed_response["success"]
 286   end
 287 end