Merge remote-tracking branch 'upstream/pull/5408'

[rails.git] / app / controllers / application_controller.rb

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 8ccd7706018f8fca2fe2e0f1d2f7958e95f5246c..32b53bad71c3f431d79234d65e354f6cafcf13c9 100644 (file)
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -1,24 +1,53 @@
 class ApplicationController < ActionController::Base
 class ApplicationController < ActionController::Base

+  require "timeout"
+

   include SessionPersistence
 
   protect_from_forgery :with => :exception
 
   include SessionPersistence
 
   protect_from_forgery :with => :exception
 

+  add_flash_types :warning, :error
+

   rescue_from CanCan::AccessDenied, :with => :deny_access
   check_authorization
 
   rescue_from CanCan::AccessDenied, :with => :deny_access
   check_authorization
 

+  rescue_from RailsParam::InvalidParameterError, :with => :invalid_parameter
+

   before_action :fetch_body
   before_action :fetch_body

-  around_action :better_errors_allow_inline, :if => proc { Rails.env.development? }

 
 

-  attr_accessor :current_user
+  attr_accessor :current_user, :oauth_token
+

   helper_method :current_user
   helper_method :current_user

+  helper_method :oauth_token
+
+  def self.allow_thirdparty_images(**options)
+    content_security_policy(options) do |policy|
+      policy.img_src("*", :data)
+    end
+  end
+
+  def self.allow_social_login(**options)
+    content_security_policy(options) do |policy|
+      policy.form_action(*policy.form_action, "accounts.google.com", "*.facebook.com", "login.microsoftonline.com", "github.com", "meta.wikimedia.org")
+    end
+  end
+
+  def self.allow_all_form_action(**options)
+    content_security_policy(options) do |policy|
+      policy.form_action(nil)
+    end
+  end

 
   private
 
   def authorize_web
     if session[:user]
 
   private
 
   def authorize_web
     if session[:user]

-      self.current_user = User.where(:id => session[:user]).where("status IN ('active', 'confirmed', 'suspended')").first
+      self.current_user = User.find_by(:id => session[:user], :status => %w[active confirmed suspended])

 
 

-      if current_user.status == "suspended"
+      if session[:fingerprint] &&
+         session[:fingerprint] != current_user.fingerprint
+        reset_session
+        self.current_user = nil
+      elsif current_user.status == "suspended"

         session.delete(:user)
         session_expires_automatically
 
         session.delete(:user)
         session_expires_automatically
 


@@ -34,11 +63,11 @@ class ApplicationController < ActionController::Base
           redirect_to :controller => "users", :action => "terms", :referer => request.fullpath
         end
       end
           redirect_to :controller => "users", :action => "terms", :referer => request.fullpath
         end
       end

-    elsif session[:token]
-      session[:user] = current_user.id if self.current_user = User.authenticate(:token => session[:token])

     end
     end

-  rescue StandardError => ex
-    logger.info("Exception authorizing user: #{ex}")
+
+    session[:fingerprint] = current_user.fingerprint if current_user && session[:fingerprint].nil?
+  rescue StandardError => e
+    logger.info("Exception authorizing user: #{e}")

     reset_session
     self.current_user = nil
   end
     reset_session
     self.current_user = nil
   end


@@ -46,7 +75,7 @@ class ApplicationController < ActionController::Base
   def require_user
     unless current_user
       if request.get?
   def require_user
     unless current_user
       if request.get?

-        redirect_to :controller => "users", :action => "login", :referer => request.fullpath
+        redirect_to login_path(:referer => request.fullpath)

       else
         head :forbidden
       end
       else
         head :forbidden
       end


@@ -54,7 +83,7 @@ class ApplicationController < ActionController::Base
   end
 
   def require_oauth
   end
 
   def require_oauth

-    @oauth = current_user.access_token(Settings.oauth_key) if current_user && Settings.key?(:oauth_key)
+    @oauth_token = current_user.oauth_token(Settings.oauth_application) if current_user && Settings.key?(:oauth_application)

   end
 
   ##
   end
 
   ##


@@ -63,7 +92,7 @@ class ApplicationController < ActionController::Base
     if request.cookies["_osm_session"].to_s == ""
       if params[:cookie_test].nil?
         session[:cookie_test] = true
     if request.cookies["_osm_session"].to_s == ""
       if params[:cookie_test].nil?
         session[:cookie_test] = true

-        redirect_to params.to_unsafe_h.merge(:cookie_test => "true")
+        redirect_to params.to_unsafe_h.merge(:only_path => true, :cookie_test => "true")

         false
       else
         flash.now[:warning] = t "application.require_cookies.cookies_needed"
         false
       else
         flash.now[:warning] = t "application.require_cookies.cookies_needed"


@@ -73,48 +102,7 @@ class ApplicationController < ActionController::Base
     end
   end
 
     end
   end
 

-  ##
-  # sets up the current_user for use by other methods. this is mostly called
-  # from the authorize method, but can be called elsewhere if authorisation
-  # is optional.
-  def setup_user_auth
-    # try and setup using OAuth
-    unless Authenticator.new(self, [:token]).allow?
-      username, passwd = get_auth_data # parse from headers
-      # authenticate per-scheme
-      self.current_user = if username.nil?
-                            nil # no authentication provided - perhaps first connect (client should retry after 401)
-                          elsif username == "token"
-                            User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
-                          else
-                            User.authenticate(:username => username, :password => passwd) # basic auth
-                          end
-    end
-
-    # have we identified the user?
-    if current_user
-      # check if the user has been banned
-      user_block = current_user.blocks.active.take
-      unless user_block.nil?
-        set_locale
-        if user_block.zero_hour?
-          report_error t("application.setup_user_auth.blocked_zero_hour"), :forbidden
-        else
-          report_error t("application.setup_user_auth.blocked"), :forbidden
-        end
-      end
-
-      # if the user hasn't seen the contributor terms then don't
-      # allow editing - they have to go to the web site and see
-      # (but can decline) the CTs to continue.
-      if !current_user.terms_seen && flash[:skip_terms].nil?
-        set_locale
-        report_error t("application.setup_user_auth.need_to_see_terms"), :forbidden
-      end
-    end
-  end
-
-  def check_database_readable(need_api = false)
+  def check_database_readable(need_api: false)

     if Settings.status == "database_offline" || (need_api && Settings.status == "api_offline")
       if request.xhr?
         report_error "Database offline for maintenance", :service_unavailable
     if Settings.status == "database_offline" || (need_api && Settings.status == "api_offline")
       if request.xhr?
         report_error "Database offline for maintenance", :service_unavailable


@@ -124,7 +112,7 @@ class ApplicationController < ActionController::Base
     end
   end
 
     end
   end
 

-  def check_database_writable(need_api = false)
+  def check_database_writable(need_api: false)

     if Settings.status == "database_offline" || Settings.status == "database_readonly" ||
        (need_api && (Settings.status == "api_offline" || Settings.status == "api_readonly"))
       if request.xhr?
     if Settings.status == "database_offline" || Settings.status == "database_readonly" ||
        (need_api && (Settings.status == "api_offline" || Settings.status == "api_readonly"))
       if request.xhr?


@@ -136,47 +124,43 @@ class ApplicationController < ActionController::Base
   end
 
   def check_api_readable
   end
 
   def check_api_readable

-    if api_status == :offline
+    if api_status == "offline"

       report_error "Database offline for maintenance", :service_unavailable
       false
     end
   end
 
   def check_api_writable
       report_error "Database offline for maintenance", :service_unavailable
       false
     end
   end
 
   def check_api_writable

-    unless api_status == :online
+    unless api_status == "online"

       report_error "Database offline for maintenance", :service_unavailable
       false
     end
   end
 
   def database_status
       report_error "Database offline for maintenance", :service_unavailable
       false
     end
   end
 
   def database_status

-    if Settings.status == "database_offline"
-      :offline
-    elsif Settings.status == "database_readonly"
-      :readonly
+    case Settings.status
+    when "database_offline"
+      "offline"
+    when "database_readonly"
+      "readonly"

     else
     else

-      :online
+      "online"

     end
   end
 
   def api_status
     status = database_status
     end
   end
 
   def api_status
     status = database_status

-    if status == :online
-      if Settings.status == "api_offline"
-        status = :offline
-      elsif Settings.status == "api_readonly"
-        status = :readonly
+    if status == "online"
+      case Settings.status
+      when "api_offline"
+        status = "offline"
+      when "api_readonly"
+        status = "readonly"

       end
     end
     status
   end
 
       end
     end
     status
   end
 

-  def gpx_status
-    status = database_status
-    status = :offline if status == :online && Settings.status == "gpx_offline"
-    status
-  end
-

   def require_public_data
     unless current_user.data_public?
       report_error "You must make your edits public to upload new data", :forbidden
   def require_public_data
     unless current_user.data_public?
       report_error "You must make your edits public to upload new data", :forbidden


@@ -193,8 +177,8 @@ class ApplicationController < ActionController::Base
     # TODO: some sort of escaping of problem characters in the message
     response.headers["Error"] = message
 
     # TODO: some sort of escaping of problem characters in the message
     response.headers["Error"] = message
 

-    if request.headers["X-Error-Format"]&.casecmp("xml")&.zero?
-      result = OSM::API.new.get_xml_doc
+    if request.headers["X-Error-Format"]&.casecmp?("xml")
+      result = OSM::API.new.xml_doc

       result.root.name = "osmError"
       result.root << (XML::Node.new("status") << "#{Rack::Utils.status_code(status)} #{Rack::Utils::HTTP_STATUS_CODES[status]}")
       result.root << (XML::Node.new("message") << message)
       result.root.name = "osmError"
       result.root << (XML::Node.new("status") << "#{Rack::Utils.status_code(status)} #{Rack::Utils::HTTP_STATUS_CODES[status]}")
       result.root << (XML::Node.new("message") << message)


@@ -205,8 +189,7 @@ class ApplicationController < ActionController::Base
     end
   end
 
     end
   end
 

-  def preferred_languages(reset = false)
-    @preferred_languages = nil if reset
+  def preferred_languages

     @preferred_languages ||= if params[:locale]
                                Locale.list(params[:locale])
                              elsif current_user
     @preferred_languages ||= if params[:locale]
                                Locale.list(params[:locale])
                              elsif current_user


@@ -218,91 +201,40 @@ class ApplicationController < ActionController::Base
 
   helper_method :preferred_languages
 
 
   helper_method :preferred_languages
 

-  def set_locale(reset = false)
+  def set_locale

     if current_user&.languages&.empty? && !http_accept_language.user_preferred_languages.empty?
       current_user.languages = http_accept_language.user_preferred_languages
       current_user.save
     end
 
     if current_user&.languages&.empty? && !http_accept_language.user_preferred_languages.empty?
       current_user.languages = http_accept_language.user_preferred_languages
       current_user.save
     end
 

-    I18n.locale = Locale.available.preferred(preferred_languages(reset))
+    I18n.locale = Locale.available.preferred(preferred_languages)

 
     response.headers["Vary"] = "Accept-Language"
     response.headers["Content-Language"] = I18n.locale.to_s
   end
 
 
     response.headers["Vary"] = "Accept-Language"
     response.headers["Content-Language"] = I18n.locale.to_s
   end
 

-  def api_call_handle_error
-    yield
-  rescue ActiveRecord::RecordNotFound => ex
-    head :not_found
-  rescue LibXML::XML::Error, ArgumentError => ex
-    report_error ex.message, :bad_request
-  rescue ActiveRecord::RecordInvalid => ex
-    message = "#{ex.record.class} #{ex.record.id}: "
-    ex.record.errors.each { |attr, msg| message << "#{attr}: #{msg} (#{ex.record[attr].inspect})" }
-    report_error message, :bad_request
-  rescue OSM::APIError => ex
-    report_error ex.message, ex.status
-  rescue AbstractController::ActionNotFound => ex
-    raise
-  rescue StandardError => ex
-    logger.info("API threw unexpected #{ex.class} exception: #{ex.message}")
-    ex.backtrace.each { |l| logger.info(l) }
-    report_error "#{ex.class}: #{ex.message}", :internal_server_error
-  end
-
-  ##
-  # asserts that the request method is the +method+ given as a parameter
-  # or raises a suitable error. +method+ should be a symbol, e.g: :put or :get.
-  def assert_method(method)
-    ok = request.send((method.to_s.downcase + "?").to_sym)
-    raise OSM::APIBadMethodError, method unless ok
-  end
-
-  ##
-  # wrap an api call in a timeout
-  def api_call_timeout
-    OSM::Timer.timeout(Settings.api_timeout, Timeout::Error) do
-      yield
-    end
-  rescue Timeout::Error
-    raise OSM::APITimeoutError
-  end
-

   ##
   # wrap a web page in a timeout
   ##
   # wrap a web page in a timeout

-  def web_timeout
-    OSM::Timer.timeout(Settings.web_timeout, Timeout::Error) do
-      yield
-    end
-  rescue ActionView::Template::Error => ex
-    ex = ex.cause
+  def web_timeout(&)
+    raise Timeout::Error if Settings.web_timeout.negative?
+
+    Timeout.timeout(Settings.web_timeout, &)
+  rescue ActionView::Template::Error => e
+    e = e.cause

 
 

-    if ex.is_a?(Timeout::Error) ||
-       (ex.is_a?(ActiveRecord::StatementInvalid) && ex.message =~ /execution expired/)
-      render :action => "timeout"
+    if e.is_a?(Timeout::Error) ||
+       (e.is_a?(ActiveRecord::StatementInvalid) && e.message.include?("execution expired"))
+      respond_to_timeout

     else
       raise
     end
   rescue Timeout::Error
     else
       raise
     end
   rescue Timeout::Error

-    render :action => "timeout"
+    respond_to_timeout

   end
 
   end
 

-  ##
-  # ensure that there is a "user" instance variable
-  def lookup_user
-    render_unknown_user params[:display_name] unless @user = User.active.find_by(:display_name => params[:display_name])
-  end
-
-  ##
-  # render a "no such user" page
-  def render_unknown_user(name)
-    @title = t "users.no_such_user.title"
-    @not_found_user = name
-
-    respond_to do |format|
-      format.html { render :template => "users/no_such_user", :status => :not_found }
-      format.all { head :not_found }
-    end
+  def respond_to_timeout
+    ActiveRecord::Base.connection.raw_connection.cancel
+    render :action => "timeout", :status => :gateway_timeout

   end
 
   ##
   end
 
   ##


@@ -319,40 +251,43 @@ class ApplicationController < ActionController::Base
   end
 
   def map_layout
   end
 
   def map_layout

-    append_content_security_policy_directives(
-      :child_src => %w[http://127.0.0.1:8111 https://127.0.0.1:8112],
-      :frame_src => %w[http://127.0.0.1:8111 https://127.0.0.1:8112],
-      :connect_src => [Settings.nominatim_url, Settings.overpass_url, Settings.fossgis_osrm_url, Settings.graphhopper_url],
-      :form_action => %w[render.openstreetmap.org],
-      :style_src => %w['unsafe-inline']
-    )
-
-    if Settings.status == "database_offline" || Settings.status == "api_offline"
+    policy = request.content_security_policy.clone
+
+    policy.connect_src(*policy.connect_src, "http://127.0.0.1:8111", Settings.nominatim_url, Settings.overpass_url, Settings.fossgis_osrm_url, Settings.graphhopper_url, Settings.fossgis_valhalla_url)
+    policy.form_action(*policy.form_action, "render.openstreetmap.org")
+    policy.style_src(*policy.style_src, :unsafe_inline)
+
+    request.content_security_policy = policy
+
+    case Settings.status
+    when "database_offline", "api_offline"

       flash.now[:warning] = t("layouts.osm_offline")
       flash.now[:warning] = t("layouts.osm_offline")

-    elsif Settings.status == "database_readonly" || Settings.status == "api_readonly"
+    when "database_readonly", "api_readonly"

       flash.now[:warning] = t("layouts.osm_read_only")
     end
 
     request.xhr? ? "xhr" : "map"
   end
 
       flash.now[:warning] = t("layouts.osm_read_only")
     end
 
     request.xhr? ? "xhr" : "map"
   end
 

-  def allow_thirdparty_images
-    append_content_security_policy_directives(:img_src => %w[*])
+  def preferred_editor
+    if params[:editor]
+      params[:editor]
+    elsif current_user&.preferred_editor
+      current_user.preferred_editor
+    else
+      Settings.default_editor
+    end

   end
 
   end
 

-  def preferred_editor
-    editor = if params[:editor]
-               params[:editor]
-             elsif current_user&.preferred_editor
-               current_user.preferred_editor
-             else
-               Settings.default_editor
-             end
-
-    editor
+  def preferred_color_scheme(subject)
+    if current_user
+      current_user.preferences.find_by(:k => "#{subject}.color_scheme")&.v || "auto"
+    else
+      "auto"
+    end

   end
 
   end
 

-  helper_method :preferred_editor
+  helper_method :preferred_editor, :preferred_color_scheme

 
   def update_totp
     if Settings.key?(:totp_key)
 
   def update_totp
     if Settings.key?(:totp_key)


@@ -364,39 +299,23 @@ class ApplicationController < ActionController::Base
     end
   end
 
     end
   end
 

-  def better_errors_allow_inline
-    yield
-  rescue StandardError
-    append_content_security_policy_directives(
-      :script_src => %w['unsafe-inline'],
-      :style_src => %w['unsafe-inline']
-    )
-
-    raise
-  end
-

   def current_ability
   def current_ability

-    # Use capabilities from the oauth token if it exists and is a valid access token
-    if Authenticator.new(self, [:token]).allow?
-      Ability.new(nil).merge(Capability.new(current_token))
-    else
-      Ability.new(current_user)
-    end
+    Ability.new(current_user)

   end
 
   def deny_access(_exception)
   end
 
   def deny_access(_exception)

-    if current_token
+    if doorkeeper_token

       set_locale
       report_error t("oauth.permissions.missing"), :forbidden
     elsif current_user
       set_locale
       respond_to do |format|
       set_locale
       report_error t("oauth.permissions.missing"), :forbidden
     elsif current_user
       set_locale
       respond_to do |format|

-        format.html { redirect_to :controller => "errors", :action => "forbidden" }
+        format.html { redirect_to :controller => "/errors", :action => "forbidden" }

         format.any { report_error t("application.permission_denied"), :forbidden }
       end
     elsif request.get?
       respond_to do |format|
         format.any { report_error t("application.permission_denied"), :forbidden }
       end
     elsif request.get?
       respond_to do |format|

-        format.html { redirect_to :controller => "users", :action => "login", :referer => request.fullpath }
+        format.html { redirect_to login_path(:referer => request.fullpath) }

         format.any { head :forbidden }
       end
     else
         format.any { head :forbidden }
       end
     else


@@ -404,20 +323,41 @@ class ApplicationController < ActionController::Base
     end
   end
 
     end
   end
 

-  # extract authorisation credentials from headers, returns user = nil if none
-  def get_auth_data
-    if request.env.key? "X-HTTP_AUTHORIZATION" # where mod_rewrite might have put it
-      authdata = request.env["X-HTTP_AUTHORIZATION"].to_s.split
-    elsif request.env.key? "REDIRECT_X_HTTP_AUTHORIZATION" # mod_fcgi
-      authdata = request.env["REDIRECT_X_HTTP_AUTHORIZATION"].to_s.split
-    elsif request.env.key? "HTTP_AUTHORIZATION" # regular location
-      authdata = request.env["HTTP_AUTHORIZATION"].to_s.split
+  def invalid_parameter(_exception)
+    if request.get?
+      respond_to do |format|
+        format.html { redirect_to :controller => "/errors", :action => "bad_request" }
+        format.any { head :bad_request }
+      end
+    else
+      head :bad_request
+    end
+  end
+
+  # clean any referer parameter
+  def safe_referer(referer)
+    begin
+      referer = URI.parse(referer)
+
+      if referer.scheme == "http" || referer.scheme == "https"
+        referer.scheme = nil
+        referer.host = nil
+        referer.port = nil
+      elsif referer.scheme || referer.host || referer.port
+        referer = nil
+      end
+
+      referer = nil if referer&.path&.first != "/"
+    rescue URI::InvalidURIError
+      referer = nil

     end
     end

-    # only basic authentication supported
-    user, pass = Base64.decode64(authdata[1]).split(":", 2) if authdata && authdata[0] == "Basic"
-    [user, pass]
+
+    referer&.to_s
+  end
+
+  def scope_enabled?(scope)
+    doorkeeper_token&.includes_scope?(scope)

   end
 
   end
 

-  # override to stop oauth plugin sending errors
-  def invalid_oauth_response; end
+  helper_method :scope_enabled?

 end
 end