Add javascript OAuth support

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

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 0f9fad45e860ab40a6687b8eece4de1d59286cad..4ac3297c6d532237a05f405bbd71b1e473e2dd5f 100644 (file)
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -3,14 +3,9 @@ class ApplicationController < ActionController::Base
 
   protect_from_forgery
 
-  if STATUS == :database_readonly or STATUS == :database_offline
-    after_filter :clear_session
-    wrap_parameters false
-
-    def clear_session
-      session.clear
-    end
+  before_filter :fetch_body
 
+  if STATUS == :database_readonly or STATUS == :database_offline
     def self.cache_sweeper(*sweepers)
     end
   end
@@ -60,6 +55,10 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  def require_oauth
+    @oauth = @user.access_token(OAUTH_KEY) if @user and 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 
@@ -118,6 +117,20 @@ class ApplicationController < ActionController::Base
     require_capability(:allow_write_gpx)
   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 @user.moderator?
+      if request.get?
+        flash[:error] = t('application.require_moderator.not_a_moderator')
+        redirect_to :action => 'index'
+      else
+        render :nothing => true, :status => :forbidden
+      end
+    end
+  end
+
   ##
   # sets up the @user object for use by other methods. this is mostly called
   # from the authorize method, but can be called elsewhere if authorisation
@@ -139,7 +152,7 @@ class ApplicationController < ActionController::Base
     # have we identified the user?
     if @user
       # check if the user has been banned
-      if not  @user.active_blocks.empty?
+      if @user.blocks.active.exists?
         # NOTE: need slightly more helpful message than this.
         report_error t('application.setup_user_auth.blocked'), :forbidden
       end
@@ -167,6 +180,22 @@ class ApplicationController < ActionController::Base
     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 @user.moderator?
+      render :text => errormessage, :status => :forbidden
+      return false
+    end 
+  end 
+
   def check_database_readable(need_api = false)
     if STATUS == :database_offline or (need_api and STATUS == :api_offline)
       redirect_to :controller => 'site', :action => 'offline'
@@ -255,7 +284,7 @@ class ApplicationController < ActionController::Base
       end
     end
 
-    I18n.locale = request.compatible_language_from(I18n.available_locales) || I18n.default_locale
+    I18n.locale = params[:locale] || request.compatible_language_from(I18n.available_locales) || I18n.default_locale
 
     response.headers['Content-Language'] = I18n.locale.to_s
   end
@@ -362,6 +391,39 @@ class ApplicationController < ActionController::Base
     !@user.nil?
   end
 
+  ##
+  # ensure that there is a "this_user" instance variable
+  def lookup_this_user
+    unless @this_user = User.active.find_by_display_name(params[:display_name])
+      render_unknown_user params[:display_name]
+    end
+  end
+
+  ##
+  # render a "no such user" page
+  def render_unknown_user(name)
+    @title = t "user.no_such_user.title"
+    @not_found_user = name
+
+    respond_to do |format|
+      format.html { render :template => "user/no_such_user", :status => :not_found }
+      format.all { render :nothing => true, :status => :not_found }
+    end
+  end
+
+  ##
+  # Unfortunately if a PUT or POST request that has a body fails to
+  # read it then Apache will sometimes fail to return the response it
+  # is given to the client properly, instead erroring:
+  #
+  #   https://issues.apache.org/bugzilla/show_bug.cgi?id=44782
+  #
+  # To work round this we call rewind on the body here, which is added
+  # as a filter, to force it to be fetched from Apache into a file.
+  def fetch_body
+    request.body.rewind
+  end
+
 private 
 
   # extract authorisation credentials from headers, returns user = nil if none