Allow abilities that require no login for token based access

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

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 9951d29aec993bbee37fcecb3a725ee04fc47175..d4bbc1f9b7147ada16f015a77f73a0fb56168aac 100644 (file)
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -3,7 +3,10 @@ class ApplicationController < ActionController::Base
 
   protect_from_forgery :with => :exception
 
 
   protect_from_forgery :with => :exception
 

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

   before_action :fetch_body
   before_action :fetch_body

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

 
   attr_accessor :current_user
   helper_method :current_user
 
   attr_accessor :current_user
   helper_method :current_user


@@ -16,16 +19,16 @@ class ApplicationController < ActionController::Base
         session.delete(:user)
         session_expires_automatically
 
         session.delete(:user)
         session_expires_automatically
 

-        redirect_to :controller => "user", :action => "suspended"
+        redirect_to :controller => "users", :action => "suspended"

 
       # don't allow access to any auth-requiring part of the site unless
       # the new CTs have been seen (and accept/decline chosen).
       elsif !current_user.terms_seen && flash[:skip_terms].nil?
 
       # don't allow access to any auth-requiring part of the site unless
       # the new CTs have been seen (and accept/decline chosen).
       elsif !current_user.terms_seen && flash[:skip_terms].nil?

-        flash[:notice] = t "user.terms.you need to accept or decline"
+        flash[:notice] = t "users.terms.you need to accept or decline"

         if params[:referer]
         if params[:referer]

-          redirect_to :controller => "user", :action => "terms", :referer => params[:referer]
+          redirect_to :controller => "users", :action => "terms", :referer => params[:referer]

         else
         else

-          redirect_to :controller => "user", :action => "terms", :referer => request.fullpath
+          redirect_to :controller => "users", :action => "terms", :referer => request.fullpath

         end
       end
     elsif session[:token]
         end
       end
     elsif session[:token]


@@ -40,7 +43,7 @@ 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 => "user", :action => "login", :referer => request.fullpath
+        redirect_to :controller => "users", :action => "login", :referer => request.fullpath

       else
         head :forbidden
       end
       else
         head :forbidden
       end


@@ -115,24 +118,6 @@ class ApplicationController < ActionController::Base
     require_capability(:allow_write_gpx)
   end
 
     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
   ##
   # 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


@@ -190,11 +175,6 @@ class ApplicationController < ActionController::Base
   ##
   # to be used as a before_filter *after* authorize. this checks that
   # the user is a moderator and, if not, returns a forbidden error.
   ##
   # 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?
   def authorize_moderator(errormessage = "Access restricted to moderators")
     # check user is a moderator
     unless current_user.moderator?


@@ -282,8 +262,7 @@ 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"] &&
-       request.headers["X-Error-Format"].casecmp("xml").zero?
+    if request.headers["X-Error-Format"]&.casecmp("xml")&.zero?

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


@@ -295,7 +274,8 @@ class ApplicationController < ActionController::Base
     end
   end
 
     end
   end
 

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

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


@@ -307,13 +287,13 @@ class ApplicationController < ActionController::Base
 
   helper_method :preferred_languages
 
 
   helper_method :preferred_languages
 

-  def set_locale
-    if current_user && current_user.languages.empty? && !http_accept_language.user_preferred_languages.empty?
+  def set_locale(reset = false)
+    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
 
       current_user.languages = http_accept_language.user_preferred_languages
       current_user.save
     end
 

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

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


@@ -385,11 +365,11 @@ class ApplicationController < ActionController::Base
   ##
   # render a "no such user" page
   def render_unknown_user(name)
   ##
   # render a "no such user" page
   def render_unknown_user(name)

-    @title = t "user.no_such_user.title"
+    @title = t "users.no_such_user.title"

     @not_found_user = name
 
     respond_to do |format|
     @not_found_user = name
 
     respond_to do |format|

-      format.html { render :template => "user/no_such_user", :status => :not_found }
+      format.html { render :template => "users/no_such_user", :status => :not_found }

       format.all { head :not_found }
     end
   end
       format.all { head :not_found }
     end
   end


@@ -409,10 +389,11 @@ class ApplicationController < ActionController::Base
 
   def map_layout
     append_content_security_policy_directives(
 
   def map_layout
     append_content_security_policy_directives(

-      :child_src => %w[127.0.0.1:8111],
-      :connect_src => %w[nominatim.openstreetmap.org overpass-api.de router.project-osrm.org],
+      :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 => [NOMINATIM_URL, OVERPASS_URL, OSRM_URL, GRAPHHOPPER_URL],

       :form_action => %w[render.openstreetmap.org],
       :form_action => %w[render.openstreetmap.org],

-      :script_src => %w[graphhopper.com open.mapquestapi.com],
+      :script_src => [MAPQUEST_DIRECTIONS_URL],

       :img_src => %w[developer.mapquest.com]
     )
 
       :img_src => %w[developer.mapquest.com]
     )
 


@@ -432,7 +413,7 @@ class ApplicationController < ActionController::Base
   def preferred_editor
     editor = if params[:editor]
                params[:editor]
   def preferred_editor
     editor = if params[:editor]
                params[:editor]

-             elsif current_user && current_user.preferred_editor
+             elsif current_user&.preferred_editor

                current_user.preferred_editor
              else
                DEFAULT_EDITOR
                current_user.preferred_editor
              else
                DEFAULT_EDITOR


@@ -453,6 +434,74 @@ 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
+    # 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
+  end
+
+  def deny_access(exception)
+    if @api_deny_access_handling
+      api_deny_access(exception)
+    else
+      web_deny_access(exception)
+    end
+  end
+
+  def web_deny_access(_exception)
+    if current_token
+      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.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.any { head :forbidden }
+      end
+    else
+      head :forbidden
+    end
+  end
+
+  def api_deny_access(_exception)
+    if current_token
+      set_locale
+      report_error t("oauth.permissions.missing"), :forbidden
+    elsif current_user
+      head :forbidden
+    else
+      realm = "Web Password"
+      errormessage = "Couldn't authenticate you"
+      response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
+      render :plain => errormessage, :status => :unauthorized
+    end
+  end
+
+  attr_accessor :api_access_handling
+
+  def api_deny_access_handler
+    @api_deny_access_handling = true
+  end
+

   private
 
   # extract authorisation credentials from headers, returns user = nil if none
   private
 
   # extract authorisation credentials from headers, returns user = nil if none