app/controllers/user_controller.rb

   1 class UserController < ApplicationController
   2   layout "site", :except => [:api_details]
   3
   4   skip_before_action :verify_authenticity_token, :only => [:api_read, :api_details, :api_gpx_files, :auth_success]
   5   before_action :disable_terms_redirect, :only => [:terms, :save, :logout, :api_details]
   6   before_action :authorize, :only => [:api_details, :api_gpx_files]
   7   before_action :authorize_web, :except => [:api_read, :api_details, :api_gpx_files]
   8   before_action :set_locale, :except => [:api_read, :api_details, :api_gpx_files]
   9   before_action :require_user, :only => [:account, :go_public, :make_friend, :remove_friend]
  10   before_action :require_self, :only => [:account]
  11   before_action :check_database_readable, :except => [:login, :api_read, :api_details, :api_gpx_files]
  12   before_action :check_database_writable, :only => [:new, :account, :confirm, :confirm_email, :lost_password, :reset_password, :go_public, :make_friend, :remove_friend]
  13   before_action :check_api_readable, :only => [:api_read, :api_details, :api_gpx_files]
  14   before_action :require_allow_read_prefs, :only => [:api_details]
  15   before_action :require_allow_read_gpx, :only => [:api_gpx_files]
  16   before_action :require_cookies, :only => [:new, :login, :confirm]
  17   before_action :require_administrator, :only => [:set_status, :delete, :list]
  18   around_action :api_call_handle_error, :only => [:api_read, :api_details, :api_gpx_files]
  19   before_action :lookup_user_by_id, :only => [:api_read]
  20   before_action :lookup_user_by_name, :only => [:set_status, :delete]
  21
  22   def terms
  23     @legale = params[:legale] || OSM.ip_to_country(request.remote_ip) || DEFAULT_LEGALE
  24     @text = OSM.legal_text_for_country(@legale)
  25
  26     if request.xhr?
  27       render :partial => "terms"
  28     else
  29       @title = t "user.terms.title"
  30
  31       if @user && @user.terms_agreed?
  32         # Already agreed to terms, so just show settings
  33         redirect_to :action => :account, :display_name => @user.display_name
  34       elsif @user.nil? && session[:new_user].nil?
  35         redirect_to :action => :login, :referer => request.fullpath
  36       end
  37     end
  38   end
  39
  40   def save
  41     @title = t "user.new.title"
  42
  43     if params[:decline]
  44       if @user
  45         @user.terms_seen = true
  46
  47         if @user.save
  48           flash[:notice] = t("user.new.terms declined", :url => t("user.new.terms declined url")).html_safe
  49         end
  50
  51         if params[:referer]
  52           redirect_to params[:referer]
  53         else
  54           redirect_to :action => :account, :display_name => @user.display_name
  55         end
  56       else
  57         redirect_to t("user.terms.declined")
  58       end
  59     elsif @user
  60       unless @user.terms_agreed?
  61         @user.consider_pd = params[:user][:consider_pd]
  62         @user.terms_agreed = Time.now.getutc
  63         @user.terms_seen = true
  64
  65         flash[:notice] = t "user.new.terms accepted" if @user.save
  66       end
  67
  68       if params[:referer]
  69         redirect_to params[:referer]
  70       else
  71         redirect_to :action => :account, :display_name => @user.display_name
  72       end
  73     else
  74       @user = session.delete(:new_user)
  75
  76       if check_signup_allowed(@user.email)
  77         @user.data_public = true
  78         @user.description = "" if @user.description.nil?
  79         @user.creation_ip = request.remote_ip
  80         @user.languages = http_accept_language.user_preferred_languages
  81         @user.terms_agreed = Time.now.getutc
  82         @user.terms_seen = true
  83
  84         if @user.auth_uid.nil? || @user.auth_uid.empty?
  85           @user.auth_provider = nil
  86           @user.auth_uid = nil
  87         end
  88
  89         if @user.save
  90           flash[:piwik_goal] = PIWIK["goals"]["signup"] if defined?(PIWIK)
  91
  92           referer = welcome_path
  93
  94           begin
  95             uri = URI(session[:referer])
  96             %r{map=(.*)/(.*)/(.*)}.match(uri.fragment) do |m|
  97               editor = Rack::Utils.parse_query(uri.query).slice("editor")
  98               referer = welcome_path({ "zoom" => m[1],
  99                                        "lat" => m[2],
 100                                        "lon" => m[3] }.merge(editor))
 101             end
 102           rescue
 103             # Use default
 104           end
 105
 106           if @user.status == "active"
 107             session[:referer] = referer
 108             successful_login(@user)
 109           else
 110             session[:token] = @user.tokens.create.token
 111             Notifier.signup_confirm(@user, @user.tokens.create(:referer => referer)).deliver_now
 112             redirect_to :action => "confirm", :display_name => @user.display_name
 113           end
 114         else
 115           render :action => "new", :referer => params[:referer]
 116         end
 117       end
 118     end
 119   end
 120
 121   def account
 122     @title = t "user.account.title"
 123     @tokens = @user.oauth_tokens.authorized
 124
 125     if params[:user] && params[:user][:display_name] && params[:user][:description]
 126       if params[:user][:auth_provider].blank? ||
 127          (params[:user][:auth_provider] == @user.auth_provider &&
 128           params[:user][:auth_uid] == @user.auth_uid)
 129         update_user(@user, params)
 130       else
 131         session[:new_user_settings] = params
 132         redirect_to auth_url(params[:user][:auth_provider], params[:user][:auth_uid])
 133       end
 134     elsif errors = session.delete(:user_errors)
 135       errors.each do |attribute, error|
 136         @user.errors.add(attribute, error)
 137       end
 138     end
 139   end
 140
 141   def go_public
 142     @user.data_public = true
 143     @user.save
 144     flash[:notice] = t "user.go_public.flash success"
 145     redirect_to :controller => "user", :action => "account", :display_name => @user.display_name
 146   end
 147
 148   def lost_password
 149     @title = t "user.lost_password.title"
 150
 151     if params[:user] && params[:user][:email]
 152       user = User.visible.find_by_email(params[:user][:email])
 153
 154       if user.nil?
 155         users = User.visible.where("LOWER(email) = LOWER(?)", params[:user][:email])
 156
 157         user = users.first if users.count == 1
 158       end
 159
 160       if user
 161         token = user.tokens.create
 162         Notifier.lost_password(user, token).deliver_now
 163         flash[:notice] = t "user.lost_password.notice email on way"
 164         redirect_to :action => "login"
 165       else
 166         flash.now[:error] = t "user.lost_password.notice email cannot find"
 167       end
 168     end
 169   end
 170
 171   def reset_password
 172     @title = t "user.reset_password.title"
 173
 174     if params[:token]
 175       token = UserToken.find_by_token(params[:token])
 176
 177       if token
 178         @user = token.user
 179
 180         if params[:user]
 181           @user.pass_crypt = params[:user][:pass_crypt]
 182           @user.pass_crypt_confirmation = params[:user][:pass_crypt_confirmation]
 183           @user.status = "active" if @user.status == "pending"
 184           @user.email_valid = true
 185
 186           if @user.save
 187             token.destroy
 188             flash[:notice] = t "user.reset_password.flash changed"
 189             successful_login(@user)
 190           end
 191         end
 192       else
 193         flash[:error] = t "user.reset_password.flash token bad"
 194         redirect_to :action => "lost_password"
 195       end
 196     else
 197       render :text => "", :status => :bad_request
 198     end
 199   end
 200
 201   def new
 202     @title = t "user.new.title"
 203     @referer = params[:referer] || session[:referer]
 204
 205     if @user
 206       # The user is logged in already, so don't show them the signup
 207       # page, instead send them to the home page
 208       if @referer
 209         redirect_to @referer
 210       else
 211         redirect_to :controller => "site", :action => "index"
 212       end
 213     elsif params.key?(:auth_provider) && params.key?(:auth_uid)
 214       @user = User.new(:email => params[:email],
 215                        :email_confirmation => params[:email],
 216                        :display_name => params[:nickname],
 217                        :auth_provider => params[:auth_provider],
 218                        :auth_uid => params[:auth_uid])
 219
 220       flash.now[:notice] = render_to_string :partial => "auth_association"
 221     else
 222       check_signup_allowed
 223     end
 224   end
 225
 226   def create
 227     @user = User.new(user_params)
 228
 229     if check_signup_allowed(@user.email)
 230       session[:referer] = params[:referer]
 231
 232       @user.status = "pending"
 233
 234       if @user.auth_provider.present? && @user.pass_crypt.empty?
 235         # We are creating an account with external authentication and
 236         # no password was specified so create a random one
 237         @user.pass_crypt = SecureRandom.base64(16)
 238         @user.pass_crypt_confirmation = @user.pass_crypt
 239       end
 240
 241       if @user.invalid?
 242         # Something is wrong with a new user, so rerender the form
 243         render :action => "new"
 244       elsif @user.auth_provider.present?
 245         # Verify external authenticator before moving on
 246         session[:new_user] = @user
 247         redirect_to auth_url(@user.auth_provider, @user.auth_uid)
 248       else
 249         # Save the user record
 250         session[:new_user] = @user
 251         redirect_to :action => :terms
 252       end
 253     end
 254   end
 255
 256   def login
 257     session[:referer] = params[:referer] if params[:referer]
 258
 259     if params[:username].present? && params[:password].present?
 260       session[:remember_me] ||= params[:remember_me]
 261       password_authentication(params[:username], params[:password])
 262     elsif params[:openid_url].present?
 263       session[:remember_me] ||= params[:remember_me_openid]
 264       redirect_to auth_url("openid", params[:openid_url], params[:referer])
 265     end
 266   end
 267
 268   def logout
 269     @title = t "user.logout.title"
 270
 271     if params[:session] == request.session_options[:id]
 272       if session[:token]
 273         token = UserToken.find_by_token(session[:token])
 274         token.destroy if token
 275         session.delete(:token)
 276       end
 277       session.delete(:user)
 278       session_expires_automatically
 279       if params[:referer]
 280         redirect_to params[:referer]
 281       else
 282         redirect_to :controller => "site", :action => "index"
 283       end
 284     end
 285   end
 286
 287   def confirm
 288     if request.post?
 289       token = UserToken.find_by_token(params[:confirm_string])
 290       if token && token.user.active?
 291         flash[:error] = t("user.confirm.already active")
 292         redirect_to :action => "login"
 293       elsif !token || token.expired?
 294         flash[:error] = t("user.confirm.unknown token")
 295         redirect_to :action => "confirm"
 296       else
 297         user = token.user
 298         user.status = "active"
 299         user.email_valid = true
 300         if (gravatar_enable(user))
 301            flash[:notice] = gravatar_status_message(user)
 302         end
 303         user.save!
 304         referer = token.referer
 305         token.destroy
 306
 307         if session[:token]
 308           token = UserToken.find_by_token(session[:token])
 309           session.delete(:token)
 310         else
 311           token = nil
 312         end
 313
 314         if token.nil? || token.user != user
 315           flash[:notice] = t("user.confirm.success")
 316           redirect_to :action => :login, :referer => referer
 317         else
 318           token.destroy
 319
 320           session[:user] = user.id
 321
 322           redirect_to referer || welcome_path
 323         end
 324       end
 325     else
 326       user = User.find_by_display_name(params[:display_name])
 327
 328       redirect_to root_path if user.nil? || user.active?
 329     end
 330   end
 331
 332   def confirm_resend
 333     user = User.find_by_display_name(params[:display_name])
 334     token = UserToken.find_by_token(session[:token])
 335
 336     if user.nil? || token.nil? || token.user != user
 337       flash[:error] = t "user.confirm_resend.failure", :name => params[:display_name]
 338     else
 339       Notifier.signup_confirm(user, user.tokens.create).deliver_now
 340       flash[:notice] = t("user.confirm_resend.success", :email => user.email, :sender => SUPPORT_EMAIL).html_safe
 341     end
 342
 343     redirect_to :action => "login"
 344   end
 345
 346   def confirm_email
 347     if request.post?
 348       token = UserToken.find_by_token(params[:confirm_string])
 349       if token && token.user.new_email?
 350         @user = token.user
 351         @user.email = @user.new_email
 352         @user.new_email = nil
 353         @user.email_valid = true
 354         changed = gravatar_enable(@user)
 355         if @user.save
 356           flash[:notice] = (t "user.confirm_email.success") + (changed ? " " + gravatar_status_message(@user) : "")
 357         else
 358           flash[:errors] = @user.errors
 359         end
 360         token.destroy
 361         session[:user] = @user.id
 362         redirect_to :action => "account", :display_name => @user.display_name
 363       elsif token
 364         flash[:error] = t "user.confirm_email.failure"
 365         redirect_to :action => "account", :display_name => token.user.display_name
 366       else
 367         flash[:error] = t "user.confirm_email.unknown_token"
 368       end
 369     end
 370   end
 371
 372   def api_read
 373     if @this_user.visible?
 374       render :action => :api_read, :content_type => "text/xml"
 375     else
 376       render :text => "", :status => :gone
 377     end
 378   end
 379
 380   def api_details
 381     @this_user = @user
 382     render :action => :api_read, :content_type => "text/xml"
 383   end
 384
 385   def api_gpx_files
 386     doc = OSM::API.new.get_xml_doc
 387     @user.traces.reload.each do |trace|
 388       doc.root << trace.to_xml_node
 389     end
 390     render :text => doc.to_s, :content_type => "text/xml"
 391   end
 392
 393   def view
 394     @this_user = User.find_by_display_name(params[:display_name])
 395
 396     if @this_user &&
 397        (@this_user.visible? || (@user && @user.administrator?))
 398       @title = @this_user.display_name
 399     else
 400       render_unknown_user params[:display_name]
 401     end
 402   end
 403
 404   def make_friend
 405     @new_friend = User.find_by_display_name(params[:display_name])
 406
 407     if @new_friend
 408       if request.post?
 409         friend = Friend.new
 410         friend.user_id = @user.id
 411         friend.friend_user_id = @new_friend.id
 412         if @user.is_friends_with?(@new_friend)
 413           flash[:warning] = t "user.make_friend.already_a_friend", :name => @new_friend.display_name
 414         elsif friend.save
 415           flash[:notice] = t "user.make_friend.success", :name => @new_friend.display_name
 416           Notifier.friend_notification(friend).deliver_now
 417         else
 418           friend.add_error(t("user.make_friend.failed", :name => @new_friend.display_name))
 419         end
 420
 421         if params[:referer]
 422           redirect_to params[:referer]
 423         else
 424           redirect_to :controller => "user", :action => "view"
 425         end
 426       end
 427     else
 428       render_unknown_user params[:display_name]
 429     end
 430   end
 431
 432   def remove_friend
 433     @friend = User.find_by_display_name(params[:display_name])
 434
 435     if @friend
 436       if request.post?
 437         if @user.is_friends_with?(@friend)
 438           Friend.delete_all "user_id = #{@user.id} AND friend_user_id = #{@friend.id}"
 439           flash[:notice] = t "user.remove_friend.success", :name => @friend.display_name
 440         else
 441           flash[:error] = t "user.remove_friend.not_a_friend", :name => @friend.display_name
 442         end
 443
 444         if params[:referer]
 445           redirect_to params[:referer]
 446         else
 447           redirect_to :controller => "user", :action => "view"
 448         end
 449       end
 450     else
 451       render_unknown_user params[:display_name]
 452     end
 453   end
 454
 455   ##
 456   # sets a user's status
 457   def set_status
 458     @this_user.status = params[:status]
 459     @this_user.save
 460     redirect_to :controller => "user", :action => "view", :display_name => params[:display_name]
 461   end
 462
 463   ##
 464   # delete a user, marking them as deleted and removing personal data
 465   def delete
 466     @this_user.delete
 467     redirect_to :controller => "user", :action => "view", :display_name => params[:display_name]
 468   end
 469
 470   ##
 471   # display a list of users matching specified criteria
 472   def list
 473     if request.post?
 474       ids = params[:user].keys.collect(&:to_i)
 475
 476       User.where(:id => ids).update_all(:status => "confirmed") if params[:confirm]
 477       User.where(:id => ids).update_all(:status => "deleted") if params[:hide]
 478
 479       redirect_to url_for(:status => params[:status], :ip => params[:ip], :page => params[:page])
 480     else
 481       conditions = {}
 482       conditions[:status] = params[:status] if params[:status]
 483       conditions[:creation_ip] = params[:ip] if params[:ip]
 484
 485       @user_pages, @users = paginate(:users,
 486                                      :conditions => conditions,
 487                                      :order => :id,
 488                                      :per_page => 50)
 489     end
 490   end
 491
 492   ##
 493   # omniauth success callback
 494   def auth_success
 495     auth_info = env["omniauth.auth"]
 496
 497     provider = auth_info[:provider]
 498     uid = auth_info[:uid]
 499     name = auth_info[:info][:name]
 500     email = auth_info[:info][:email]
 501
 502     case provider
 503     when "openid"
 504       email_verified = uid.match(%r{https://www.google.com/accounts/o8/id?(.*)}) ||
 505                        uid.match(%r{https://me.yahoo.com/(.*)})
 506     when "google", "facebook"
 507       email_verified = true
 508     else
 509       email_verified = false
 510     end
 511
 512     if settings = session.delete(:new_user_settings)
 513       @user.auth_provider = provider
 514       @user.auth_uid = uid
 515
 516       update_user(@user, settings)
 517
 518       session[:user_errors] = @user.errors.as_json
 519
 520       redirect_to :action => "account", :display_name => @user.display_name
 521     elsif session[:new_user]
 522       session[:new_user].auth_provider = provider
 523       session[:new_user].auth_uid = uid
 524
 525       if email_verified && email == session[:new_user].email
 526         session[:new_user].status = "active"
 527       end
 528
 529       redirect_to :action => "terms"
 530     else
 531       user = User.find_by_auth_provider_and_auth_uid(provider, uid)
 532
 533       if user.nil? && provider == "google"
 534         openid_url = auth_info[:extra][:id_info]["openid_id"]
 535         user = User.find_by_auth_provider_and_auth_uid("openid", openid_url) if openid_url
 536         user.update(:auth_provider => provider, :auth_uid => uid) if user
 537       end
 538
 539       if user
 540         case user.status
 541         when "pending" then
 542           unconfirmed_login(user)
 543         when "active", "confirmed" then
 544           successful_login(user, env["omniauth.params"]["referer"])
 545         when "suspended" then
 546           failed_login t("user.login.account is suspended", :webmaster => "mailto:#{SUPPORT_EMAIL}")
 547         else
 548           failed_login t("user.login.auth failure")
 549         end
 550       else
 551         redirect_to :action => "new", :nickname => name, :email => email,
 552                     :auth_provider => provider, :auth_uid => uid
 553       end
 554     end
 555   end
 556
 557   ##
 558   # omniauth failure callback
 559   def auth_failure
 560     flash[:error] = t("user.auth_failure." + params[:message])
 561     redirect_to params[:origin] || login_url
 562   end
 563
 564   private
 565
 566   ##
 567   # handle password authentication
 568   def password_authentication(username, password)
 569     if user = User.authenticate(:username => username, :password => password)
 570       successful_login(user)
 571     elsif user = User.authenticate(:username => username, :password => password, :pending => true)
 572       unconfirmed_login(user)
 573     elsif User.authenticate(:username => username, :password => password, :suspended => true)
 574       failed_login t("user.login.account is suspended", :webmaster => "mailto:#{SUPPORT_EMAIL}"), username
 575     else
 576       failed_login t("user.login.auth failure"), username
 577     end
 578   end
 579
 580   ##
 581   # return the URL to use for authentication
 582   def auth_url(provider, uid, referer = nil)
 583     params = { :provider => provider }
 584
 585     params[:openid_url] = openid_expand_url(uid) if provider == "openid"
 586
 587     if referer.nil?
 588       params[:origin] = request.path
 589     else
 590       params[:origin] = request.path + "?referer=" + CGI.escape(referer)
 591       params[:referer] = referer
 592     end
 593
 594     auth_path(params)
 595   end
 596
 597   ##
 598   # special case some common OpenID providers by applying heuristics to
 599   # try and come up with the correct URL based on what the user entered
 600   def openid_expand_url(openid_url)
 601     if openid_url.nil?
 602       return nil
 603     elsif openid_url.match(%r{(.*)gmail.com(/?)$}) || openid_url.match(%r{(.*)googlemail.com(/?)$})
 604       # Special case gmail.com as it is potentially a popular OpenID
 605       # provider and, unlike yahoo.com, where it works automatically, Google
 606       # have hidden their OpenID endpoint somewhere obscure this making it
 607       # somewhat less user friendly.
 608       return "https://www.google.com/accounts/o8/id"
 609     else
 610       return openid_url
 611     end
 612   end
 613
 614   ##
 615   # process a successful login
 616   def successful_login(user, referer = nil)
 617     session[:user] = user.id
 618     session_expires_after 28.days if session[:remember_me]
 619
 620     target = referer || session[:referer] || url_for(:controller => :site, :action => :index)
 621
 622     # The user is logged in, so decide where to send them:
 623     #
 624     # - If they haven't seen the contributor terms, send them there.
 625     # - If they have a block on them, show them that.
 626     # - If they were referred to the login, send them back there.
 627     # - Otherwise, send them to the home page.
 628     if REQUIRE_TERMS_SEEN && !user.terms_seen
 629       redirect_to :controller => :user, :action => :terms, :referer => target
 630     elsif user.blocked_on_view
 631       redirect_to user.blocked_on_view, :referer => target
 632     else
 633       redirect_to target
 634     end
 635
 636     session.delete(:remember_me)
 637     session.delete(:referer)
 638   end
 639
 640   ##
 641   # process a failed login
 642   def failed_login(message, username = nil)
 643     flash[:error] = message
 644
 645     redirect_to :action => "login", :referer => session[:referer],
 646                 :username => username, :remember_me => session[:remember_me]
 647
 648     session.delete(:remember_me)
 649     session.delete(:referer)
 650   end
 651
 652   ##
 653   #
 654   def unconfirmed_login(user)
 655     session[:token] = user.tokens.create.token
 656
 657     redirect_to :action => "confirm", :display_name => user.display_name
 658
 659     session.delete(:remember_me)
 660     session.delete(:referer)
 661   end
 662
 663   ##
 664   # update a user's details
 665   def update_user(user, params)
 666     user.display_name = params[:user][:display_name]
 667     user.new_email = params[:user][:new_email]
 668
 669     unless params[:user][:pass_crypt].empty? && params[:user][:pass_crypt_confirmation].empty?
 670       user.pass_crypt = params[:user][:pass_crypt]
 671       user.pass_crypt_confirmation = params[:user][:pass_crypt_confirmation]
 672     end
 673
 674     if params[:user][:description] != user.description
 675       user.description = params[:user][:description]
 676       user.description_format = "markdown"
 677     end
 678
 679     user.languages = params[:user][:languages].split(",")
 680
 681     case params[:image_action]
 682     when "new" then
 683       user.image = params[:user][:image]
 684       user.image_use_gravatar = false
 685     when "delete" then
 686       user.image = nil
 687       user.image_use_gravatar = false
 688     when "gravatar" then
 689       user.image = nil
 690       user.image_use_gravatar = true
 691     end
 692
 693     user.home_lat = params[:user][:home_lat]
 694     user.home_lon = params[:user][:home_lon]
 695
 696     user.preferred_editor = if params[:user][:preferred_editor] == "default"
 697                               nil
 698                             else
 699                               params[:user][:preferred_editor]
 700                             end
 701
 702     if params[:user][:auth_provider].nil? || params[:user][:auth_provider].blank?
 703       user.auth_provider = nil
 704       user.auth_uid = nil
 705     end
 706
 707     if user.save
 708       set_locale
 709
 710       if user.new_email.blank? || user.new_email == user.email
 711         flash.now[:notice] = t "user.account.flash update success"
 712       else
 713         user.email = user.new_email
 714
 715         if user.valid?
 716           flash.now[:notice] = t "user.account.flash update success confirm needed"
 717
 718           begin
 719             Notifier.email_confirm(user, user.tokens.create).deliver_now
 720           rescue
 721             # Ignore errors sending email
 722           end
 723         else
 724           @user.errors.set(:new_email, @user.errors.get(:email))
 725           @user.errors.set(:email, [])
 726         end
 727
 728         user.restore_email!
 729       end
 730     end
 731   end
 732
 733   ##
 734   # require that the user is a administrator, or fill out a helpful error message
 735   # and return them to the user page.
 736   def require_administrator
 737     if @user && !@user.administrator?
 738       flash[:error] = t("user.filter.not_an_administrator")
 739
 740       if params[:display_name]
 741         redirect_to :controller => "user", :action => "view", :display_name => params[:display_name]
 742       else
 743         redirect_to :controller => "user", :action => "login", :referer => request.fullpath
 744       end
 745     elsif !@user
 746       redirect_to :controller => "user", :action => "login", :referer => request.fullpath
 747     end
 748   end
 749
 750   ##
 751   # require that the user in the URL is the logged in user
 752   def require_self
 753     if params[:display_name] != @user.display_name
 754       render :text => "", :status => :forbidden
 755     end
 756   end
 757
 758   ##
 759   # ensure that there is a "this_user" instance variable
 760   def lookup_user_by_id
 761     @this_user = User.find(params[:id])
 762   end
 763
 764   ##
 765   # ensure that there is a "this_user" instance variable
 766   def lookup_user_by_name
 767     @this_user = User.find_by_display_name(params[:display_name])
 768   rescue ActiveRecord::RecordNotFound
 769     redirect_to :controller => "user", :action => "view", :display_name => params[:display_name] unless @this_user
 770   end
 771
 772   ##
 773   #
 774   def disable_terms_redirect
 775     # this is necessary otherwise going to the user terms page, when
 776     # having not agreed already would cause an infinite redirect loop.
 777     # it's .now so that this doesn't propagate to other pages.
 778     flash.now[:skip_terms] = true
 779   end
 780
 781   ##
 782   # return permitted user parameters
 783   def user_params
 784     params.require(:user).permit(:email, :email_confirmation, :display_name,
 785                                  :auth_provider, :auth_uid,
 786                                  :pass_crypt, :pass_crypt_confirmation)
 787   end
 788
 789   ##
 790   # check signup acls
 791   def check_signup_allowed(email = nil)
 792     domain = if email.nil?
 793                nil
 794              else
 795                email.split("@").last
 796              end
 797
 798     if blocked = Acl.no_account_creation(request.remote_ip, domain)
 799       logger.info "Blocked signup from #{request.remote_ip} for #{email}"
 800
 801       render :action => "blocked"
 802     end
 803
 804     !blocked
 805   end
 806
 807   ##
 808   # check if this user has a gravatar and set the user pref is true
 809   def gravatar_enable(user)
 810     # code from example https://en.gravatar.com/site/implement/images/ruby/
 811     return false if user.image.present?
 812     hash = Digest::MD5.hexdigest(user.email.downcase)
 813     url = "https://www.gravatar.com/avatar/#{hash}?d=404" # without d=404 we will always get an image back
 814     response = OSM.http_client.get(URI.parse(url))
 815     oldsetting = user.image_use_gravatar
 816     user.image_use_gravatar = response.success?
 817     return oldsetting != user.image_use_gravatar
 818   end
 819
 820   ##
 821   # display a message about th current status of the gravatar setting
 822   def gravatar_status_message(user)
 823     if user.image_use_gravatar
 824       return t "user.account.gravatar.enabled"
 825     else
 826       return t "user.account.gravatar.disabled"
 827     end
 828   end
 829 end