Added better messages and error handling in a couple of places. Added integration...

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

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 3eefa4a9142d4d760b959799b33fb5fad0803b4a..c701d8adde71093f37b9f927c1e8b228e4d5bbc6 100644 (file)
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -22,19 +22,67 @@ class ApplicationController < ActionController::Base
     redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri unless @user
   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)
+        render :text => "OAuth token doesn't have that capability.", :status => :forbidden
+        return false
+      end
+    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)
+  end
+  def require_allow_read_gpx
+    require_capability(:allow_read_gpx)
+  end
+  def require_allow_write_gpx
+    require_capability(:allow_write_gpx)
+  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
   # is optional.
   def setup_user_auth
-    username, passwd = get_auth_data # parse from headers
-    # authenticate per-scheme
-    if username.nil?
-      @user = nil # no authentication provided - perhaps first connect (client should retry after 401)
-    elsif username == 'token' 
-      @user = User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
+    # try and setup using OAuth
+    if oauthenticate
+      @user = current_token.user
     else
-      @user = User.authenticate(:username => username, :password => passwd) # basic auth
+      username, passwd = get_auth_data # parse from headers
+      # authenticate per-scheme
+      if username.nil?
+        @user = nil # no authentication provided - perhaps first connect (client should retry after 401)
+      elsif username == 'token'
+        @user = User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
+      else
+        @user = User.authenticate(:username => username, :password => passwd) # basic auth
+      end
+    end
+
+    # check if the user has been banned
+    unless @user.nil? or @user.active_blocks.empty?
+      # NOTE: need slightly more helpful message than this.
+      render :text => t('application.setup_user_auth.blocked'), :status => :forbidden
     end
   end