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, :create]) 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       @user = User.new(
  55         :email => params[:email],
  56         :display_name => params[:nickname],
  57         :auth_provider => params[:auth_provider],
  58         :auth_uid => params[:auth_uid]
  59       )
  60
  61       if @user.valid? || @user.errors[:email].empty?
  62         flash.now[:notice] = render_to_string :partial => "auth_association"
  63       else
  64         flash.now[:warning] = t ".duplicate_social_email"
  65       end
  66     elsif check_signup_allowed?
  67       @user = User.new
  68     else
  69       render :action => "blocked"
  70     end
  71   end
  72
  73   def create
  74     @user = User.new(user_params)
  75
  76     if check_signup_allowed?(@user.email)
  77       if @user.auth_uid.present?
  78         # We are creating an account with external authentication and
  79         # no password was specified so create a random one
  80         @user.pass_crypt = SecureRandom.base64(16)
  81         @user.pass_crypt_confirmation = @user.pass_crypt
  82       end
  83
  84       if @user.invalid?
  85         # Something is wrong with a new user, so rerender the form
  86         render :action => "new"
  87       elsif Settings.turnstile_site_key && !valid_turnstile_response?(params["cf-turnstile-response"])
  88         # Invalid turnstile response, so rerender the form
  89         flash.now[:error] = t ".not_human"
  90         render :action => "new"
  91       else
  92         # Save the user record
  93         if save_new_user(@user, params[:email_hmac])
  94           SIGNUP_IP_LIMITER&.update(request.remote_ip)
  95           SIGNUP_EMAIL_LIMITER&.update(canonical_email(@user.email))
  96
  97           flash[:matomo_goal] = Settings.matomo["goals"]["signup"] if defined?(Settings.matomo)
  98
  99           referer = welcome_path(welcome_options(params[:referer]))
 100
 101           if @user.status == "active"
 102             successful_login(@user, referer)
 103           else
 104             session[:pending_user] = @user.id
 105             UserMailer.with(
 106               :user => @user,
 107               :token => @user.generate_token_for(:new_user),
 108               :referer => referer
 109             ).signup_confirm.deliver_later
 110             redirect_to :controller => :confirmations, :action => :confirm, :display_name => @user.display_name
 111           end
 112         else
 113           render :action => "new", :referer => params[:referer]
 114         end
 115       end
 116     else
 117       render :action => "blocked"
 118     end
 119   end
 120
 121   def go_public
 122     current_user.data_public = true
 123     current_user.save
 124     flash[:notice] = t ".flash success"
 125     redirect_to account_path
 126   end
 127
 128   ##
 129   # omniauth success callback
 130   def auth_success
 131     referer = request.env["omniauth.params"]["referer"]
 132     auth_info = request.env["omniauth.auth"]
 133
 134     provider = auth_info[:provider]
 135     uid = auth_info[:uid]
 136     name = auth_info[:info][:name]
 137     email = auth_info[:info][:email]
 138
 139     email_verified = case provider
 140                      when "google", "apple", "facebook", "microsoft", "github", "wikipedia"
 141                        true
 142                      else
 143                        false
 144                      end
 145
 146     if settings = session.delete(:new_user_settings)
 147       current_user.auth_provider = provider
 148       current_user.auth_uid = uid
 149
 150       update_user(current_user, settings)
 151
 152       flash.discard
 153
 154       session[:user_errors] = current_user.errors.as_json
 155
 156       redirect_to account_path
 157     else
 158       user = User.find_by(:auth_provider => provider, :auth_uid => uid)
 159
 160       if user.nil? && provider == "google"
 161         openid_url = auth_info[:extra][:id_info]["openid_id"]
 162         user = User.find_by(:auth_provider => "openid", :auth_uid => openid_url) if openid_url
 163         user&.update(:auth_provider => provider, :auth_uid => uid)
 164       end
 165
 166       if user
 167         case user.status
 168         when "pending"
 169           unconfirmed_login(user, referer)
 170         when "active", "confirmed"
 171           successful_login(user, referer)
 172         when "suspended"
 173           failed_login({ :partial => "sessions/suspended_flash" }, user.display_name, referer)
 174         else
 175           failed_login(t("sessions.new.auth failure"), user.display_name, referer)
 176         end
 177       else
 178         email_hmac = UsersController.message_hmac(email) if email_verified && email
 179         redirect_to :action => "new", :nickname => name, :email => email, :email_hmac => email_hmac,
 180                     :auth_provider => provider, :auth_uid => uid, :referer => referer
 181       end
 182     end
 183   end
 184
 185   ##
 186   # omniauth failure callback
 187   def auth_failure
 188     flash[:error] = t(params[:message], :scope => "users.auth_failure", :default => t(".unknown_error"))
 189
 190     origin = safe_referer(params[:origin]) if params[:origin]
 191
 192     redirect_to origin || login_url
 193   end
 194
 195   def self.message_hmac(text)
 196     sha256 = Digest::SHA256.new
 197     sha256 << Rails.application.key_generator.generate_key("openstreetmap/email_address")
 198     sha256 << text
 199     Base64.urlsafe_encode64(sha256.digest)
 200   end
 201
 202   private
 203
 204   def save_new_user(user, email_hmac)
 205     user.data_public = true
 206     user.description = "" if user.description.nil?
 207     user.creation_address = request.remote_ip
 208     user.languages =
 209       if request.cookies["_osm_locale"]
 210         Locale.list(request.cookies["_osm_locale"])
 211       else
 212         http_accept_language.user_preferred_languages
 213       end
 214     user.terms_agreed = Time.now.utc
 215     user.tou_agreed = Time.now.utc
 216     user.terms_seen = true
 217
 218     if user.auth_uid.blank?
 219       user.auth_provider = nil
 220       user.auth_uid = nil
 221     elsif email_hmac && ActiveSupport::SecurityUtils.secure_compare(email_hmac, UsersController.message_hmac(user.email))
 222       user.activate
 223     end
 224
 225     user.save
 226   end
 227
 228   def welcome_options(referer = nil)
 229     uri = URI(referer) if referer.present?
 230
 231     return { "oauth_return_url" => uri&.to_s } if uri&.path == oauth_authorization_path
 232
 233     begin
 234       %r{map=(.*)/(.*)/(.*)}.match(uri.fragment) do |m|
 235         editor = Rack::Utils.parse_query(uri.query).slice("editor")
 236         return { "zoom" => m[1], "lat" => m[2], "lon" => m[3] }.merge(editor)
 237       end
 238     rescue StandardError
 239       # Use default
 240     end
 241   end
 242
 243   ##
 244   # return permitted user parameters
 245   def user_params
 246     params.expect(:user => [:email, :display_name,
 247                             :auth_provider, :auth_uid,
 248                             :pass_crypt, :pass_crypt_confirmation])
 249   end
 250
 251   ##
 252   # check signup acls
 253   def check_signup_allowed?(email = nil)
 254     domain = if email.nil?
 255                nil
 256              else
 257                email.split("@").last
 258              end
 259
 260     mx_servers = if domain.nil?
 261                    nil
 262                  else
 263                    domain_mx_servers(domain)
 264                  end
 265
 266     return true if Acl.allow_account_creation?(request.remote_ip, :domain => domain, :mx => mx_servers)
 267
 268     blocked = Acl.no_account_creation?(request.remote_ip, :domain => domain, :mx => mx_servers)
 269
 270     blocked ||= SIGNUP_IP_LIMITER && !SIGNUP_IP_LIMITER.allow?(request.remote_ip)
 271
 272     blocked ||= email && SIGNUP_EMAIL_LIMITER && !SIGNUP_EMAIL_LIMITER.allow?(canonical_email(email))
 273
 274     logger.info "Blocked signup from #{request.remote_ip} for #{email}" if blocked
 275
 276     !blocked
 277   end
 278
 279   ##
 280   # check if a turnstile response is valid
 281   def valid_turnstile_response?(turnstile_response)
 282     response = OSM.http_client.post("https://challenges.cloudflare.com/turnstile/v0/siteverify", {
 283                                       :secret => Settings.turnstile_secret_key,
 284                                       :response => turnstile_response,
 285                                       :remoteip => request.remote_ip
 286                                     })
 287
 288     return false unless response.success?
 289
 290     parsed_response = JSON.parse(response.body)
 291
 292     parsed_response["success"]
 293   end
 294 end