X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/acfbc091982fbf74baeef7d16ff7d84f63c84951..0e2a66e8de55b3719bd307261058b7f898598994:/app/controllers/application_controller.rb

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 1df6dd7d1..68baa3115 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -3,13 +3,21 @@ class ApplicationController < ActionController::Base
 
   protect_from_forgery :with => :exception
 
+  add_flash_types :warning, :error
+
   rescue_from CanCan::AccessDenied, :with => :deny_access
+  check_authorization
 
   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 :oauth_token
+  helper_method :preferred_langauges
+
+  private
 
   def authorize_web
     if session[:user]
@@ -34,8 +42,8 @@ class ApplicationController < ActionController::Base
     elsif session[:token]
       session[:user] = current_user.id if self.current_user = User.authenticate(:token => session[:token])
     end
-  rescue StandardError => ex
-    logger.info("Exception authorizing user: #{ex}")
+  rescue StandardError => e
+    logger.info("Exception authorizing user: #{e}")
     reset_session
     self.current_user = nil
   end
@@ -51,25 +59,7 @@ class ApplicationController < ActionController::Base
   end
 
   def require_oauth
-    @oauth = current_user.access_token(OAUTH_KEY) if current_user && defined? OAUTH_KEY
-  end
-
-  ##
-  # requires the user to be logged in by the token or HTTP methods, or have an
-  # OAuth token with the right capability. this method is a bit of a pain to call
-  # directly, since it's cumbersome to call filters with arguments in rails. to
-  # make it easier to read and write the code, there are some utility methods
-  # below.
-  def require_capability(cap)
-    # when the current token is nil, it means the user logged in with a different
-    # method, otherwise an OAuth token was used, which has to be checked.
-    unless current_token.nil?
-      unless current_token.read_attribute(cap)
-        set_locale
-        report_error t("oauth.permissions.missing"), :forbidden
-        false
-      end
-    end
+    @oauth_token = current_user.access_token(Settings.oauth_key) if current_user && Settings.key?(:oauth_key)
   end
 
   ##
@@ -78,7 +68,7 @@ class ApplicationController < ActionController::Base
     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"
@@ -88,126 +78,8 @@ class ApplicationController < ActionController::Base
     end
   end
 
-  # Utility methods to make the controller filter methods easier to read and write.
-  def require_allow_read_prefs
-    require_capability(:allow_read_prefs)
-  end
-
-  def require_allow_write_prefs
-    require_capability(:allow_write_prefs)
-  end
-
-  def require_allow_write_diary
-    require_capability(:allow_write_diary)
-  end
-
-  def require_allow_write_api
-    require_capability(:allow_write_api)
-
-    if REQUIRE_TERMS_AGREED && current_user.terms_agreed.nil?
-      report_error "You must accept the contributor terms before you can edit.", :forbidden
-      return false
-    end
-  end
-
-  def require_allow_read_gpx
-    require_capability(:allow_read_gpx)
-  end
-
-  def require_allow_write_gpx
-    require_capability(:allow_write_gpx)
-  end
-
-  def require_allow_write_notes
-    require_capability(:allow_write_notes)
-  end
-
-  ##
-  # require that the user is a moderator, or fill out a helpful error message
-  # and return them to the index for the controller this is wrapped from.
-  def require_moderator
-    unless current_user.moderator?
-      if request.get?
-        flash[:error] = t("application.require_moderator.not_a_moderator")
-        redirect_to :action => "index"
-      else
-        head :forbidden
-      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 REQUIRE_TERMS_SEEN && !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 authorize(realm = "Web Password", errormessage = "Couldn't authenticate you")
-    # make the current_user object from any auth sources we have
-    setup_user_auth
-
-    # handle authenticate pass/fail
-    unless current_user
-      # no auth, the user does not exist or the password was wrong
-      response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
-      render :plain => errormessage, :status => :unauthorized
-      return false
-    end
-  end
-
-  ##
-  # to be used as a before_filter *after* authorize. this checks that
-  # the user is a moderator and, if not, returns a forbidden error.
-  #
-  # NOTE: this isn't a very good way of doing it - it duplicates logic
-  # from require_moderator - but what we really need to do is a fairly
-  # drastic refactoring based on :format and respond_to? but not a
-  # good idea to do that in this branch.
-  def authorize_moderator(errormessage = "Access restricted to moderators")
-    # check user is a moderator
-    unless current_user.moderator?
-      render :plain => errormessage, :status => :forbidden
-      false
-    end
-  end
-
   def check_database_readable(need_api = false)
-    if STATUS == :database_offline || (need_api && STATUS == :api_offline)
+    if Settings.status == "database_offline" || (need_api && Settings.status == "api_offline")
       if request.xhr?
         report_error "Database offline for maintenance", :service_unavailable
       else
@@ -217,8 +89,8 @@ class ApplicationController < ActionController::Base
   end
 
   def check_database_writable(need_api = false)
-    if STATUS == :database_offline || STATUS == :database_readonly ||
-       (need_api && (STATUS == :api_offline || STATUS == :api_readonly))
+    if Settings.status == "database_offline" || Settings.status == "database_readonly" ||
+       (need_api && (Settings.status == "api_offline" || Settings.status == "api_readonly"))
       if request.xhr?
         report_error "Database offline for maintenance", :service_unavailable
       else
@@ -228,47 +100,43 @@ class ApplicationController < ActionController::Base
   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
-    unless api_status == :online
+    unless api_status == "online"
       report_error "Database offline for maintenance", :service_unavailable
       false
     end
   end
 
   def database_status
-    if STATUS == :database_offline
-      :offline
-    elsif STATUS == :database_readonly
-      :readonly
+    case Settings.status
+    when "database_offline"
+      "offline"
+    when "database_readonly"
+      "readonly"
     else
-      :online
+      "online"
     end
   end
 
   def api_status
     status = database_status
-    if status == :online
-      if STATUS == :api_offline
-        status = :offline
-      elsif 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
 
-  def gpx_status
-    status = database_status
-    status = :offline if status == :online && 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
@@ -324,22 +192,24 @@ class ApplicationController < ActionController::Base
 
   def api_call_handle_error
     yield
-  rescue ActiveRecord::RecordNotFound => ex
+  rescue ActionController::UnknownFormat
+    head :not_acceptable
+  rescue ActiveRecord::RecordNotFound => e
     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})" }
+  rescue LibXML::XML::Error, ArgumentError => e
+    report_error e.message, :bad_request
+  rescue ActiveRecord::RecordInvalid => e
+    message = "#{e.record.class} #{e.record.id}: "
+    e.record.errors.each { |attr, msg| message << "#{attr}: #{msg} (#{e.record[attr].inspect})" }
     report_error message, :bad_request
-  rescue OSM::APIError => ex
-    report_error ex.message, ex.status
-  rescue AbstractController::ActionNotFound => ex
+  rescue OSM::APIError => e
+    report_error e.message, e.status
+  rescue AbstractController::ActionNotFound => e
     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
+  rescue StandardError => e
+    logger.info("API threw unexpected #{e.class} exception: #{e.message}")
+    e.backtrace.each { |l| logger.info(l) }
+    report_error "#{e.class}: #{e.message}", :internal_server_error
   end
 
   ##
@@ -353,7 +223,7 @@ class ApplicationController < ActionController::Base
   ##
   # wrap an api call in a timeout
   def api_call_timeout
-    OSM::Timer.timeout(API_TIMEOUT, Timeout::Error) do
+    OSM::Timer.timeout(Settings.api_timeout, Timeout::Error) do
       yield
     end
   rescue Timeout::Error
@@ -363,14 +233,14 @@ class ApplicationController < ActionController::Base
   ##
   # wrap a web page in a timeout
   def web_timeout
-    OSM::Timer.timeout(WEB_TIMEOUT, Timeout::Error) do
+    OSM::Timer.timeout(Settings.web_timeout, Timeout::Error) do
       yield
     end
-  rescue ActionView::Template::Error => ex
-    ex = ex.cause
+  rescue ActionView::Template::Error => e
+    e = e.cause
 
-    if ex.is_a?(Timeout::Error) ||
-       (ex.is_a?(ActiveRecord::StatementInvalid) && ex.message =~ /execution expired/)
+    if e.is_a?(Timeout::Error) ||
+       (e.is_a?(ActiveRecord::StatementInvalid) && e.message.include?("execution expired"))
       render :action => "timeout"
     else
       raise
@@ -414,15 +284,15 @@ class ApplicationController < ActionController::Base
     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 => %w[nominatim.openstreetmap.org overpass-api.de router.project-osrm.org graphhopper.com],
+      :connect_src => [Settings.nominatim_url, Settings.overpass_url, Settings.fossgis_osrm_url, Settings.graphhopper_url],
       :form_action => %w[render.openstreetmap.org],
-      :script_src => %w[open.mapquestapi.com],
-      :img_src => %w[developer.mapquest.com]
+      :style_src => %w['unsafe-inline']
     )
 
-    if STATUS == :database_offline || STATUS == :api_offline
+    case Settings.status
+    when "database_offline", "api_offline"
       flash.now[:warning] = t("layouts.osm_offline")
-    elsif STATUS == :database_readonly || STATUS == :api_readonly
+    when "database_readonly", "api_readonly"
       flash.now[:warning] = t("layouts.osm_read_only")
     end
 
@@ -434,23 +304,21 @@ class ApplicationController < ActionController::Base
   end
 
   def preferred_editor
-    editor = if params[:editor]
-               params[:editor]
-             elsif current_user&.preferred_editor
-               current_user.preferred_editor
-             else
-               DEFAULT_EDITOR
-             end
-
-    editor
+    if params[:editor]
+      params[:editor]
+    elsif current_user&.preferred_editor
+      current_user.preferred_editor
+    else
+      Settings.default_editor
+    end
   end
 
   helper_method :preferred_editor
 
   def update_totp
-    if defined?(TOTP_KEY)
+    if Settings.key?(:totp_key)
       cookies["_osm_totp_token"] = {
-        :value => ROTP::TOTP.new(TOTP_KEY, :interval => 3600).now,
+        :value => ROTP::TOTP.new(Settings.totp_key, :interval => 3600).now,
         :domain => "openstreetmap.org",
         :expires => 1.hour.from_now
       }
@@ -469,12 +337,7 @@ class ApplicationController < ActionController::Base
   end
 
   def current_ability
-    # Add in capabilities from the oauth token if it exists and is a valid access token
-    if Authenticator.new(self, [:token]).allow?
-      Ability.new(current_user).merge(Capability.new(current_token))
-    else
-      Ability.new(current_user)
-    end
+    Ability.new(current_user)
   end
 
   def deny_access(_exception)
@@ -483,16 +346,20 @@ class ApplicationController < ActionController::Base
       report_error t("oauth.permissions.missing"), :forbidden
     elsif current_user
       set_locale
-      report_error t("application.permission_denied"), :forbidden
+      respond_to do |format|
+        format.html { redirect_to :controller => "errors", :action => "forbidden" }
+        format.any { report_error t("application.permission_denied"), :forbidden }
+      end
     elsif request.get?
-      redirect_to :controller => "users", :action => "login", :referer => request.fullpath
+      respond_to do |format|
+        format.html { redirect_to :controller => "users", :action => "login", :referer => request.fullpath }
+        format.any { head :forbidden }
+      end
     else
       head :forbidden
     end
   end
 
-  private
-
   # 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
@@ -509,4 +376,19 @@ class ApplicationController < ActionController::Base
 
   # override to stop oauth plugin sending errors
   def invalid_oauth_response; end
+
+  # clean any referer parameter
+  def safe_referer(referer)
+    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.to_s
+  end
 end