Fix exception with XML notes#index when no notes are found

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

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 7ac9e6402bc64236d80aeac26f28e1a36554060e..067fc6a511f5856404ef601084d536f21f0be843 100644 (file)
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -3,6 +3,8 @@ class ApplicationController < ActionController::Base
 
   protect_from_forgery
 
+  before_filter :fetch_body
+
   if STATUS == :database_readonly or STATUS == :database_offline
     def self.cache_sweeper(*sweepers)
     end
@@ -53,6 +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 
@@ -110,6 +116,23 @@ class ApplicationController < ActionController::Base
   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 @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
@@ -132,7 +155,7 @@ 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
@@ -160,6 +183,22 @@ 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'
@@ -174,20 +213,49 @@ class ApplicationController < ActionController::Base
   end
 
   def check_api_readable
-    if STATUS == :database_offline or STATUS == :api_offline
+    if api_status == :offline
       report_error "Database offline for maintenance", :service_unavailable
       return false
     end
   end
 
   def check_api_writable
-    if STATUS == :database_offline or STATUS == :database_readonly or
-       STATUS == :api_offline or STATUS == :api_readonly
+    unless api_status == :online
       report_error "Database offline for maintenance", :service_unavailable
       return false
     end
   end
 
+  def database_status
+    if STATUS == :database_offline
+      :offline
+    elsif STATUS == :database_readonly
+      :readonly
+    else 
+      :online
+    end
+  end
+
+  def api_status
+    status = database_status
+    if status == :online
+      if STATUS == :api_offline
+        status = :offline
+      elsif STATUS == :api_readonly
+        status = :readonly
+      end
+    end
+    return status
+  end
+
+  def gpx_status
+    status = database_status
+    if status == :online
+      status = :offline if STATUS == :gpx_offline
+    end
+    return status
+  end
+
   def require_public_data
     unless @user.data_public?
       report_error "You must make your edits public to upload new data", :forbidden
@@ -248,7 +316,7 @@ 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
@@ -369,9 +437,25 @@ class ApplicationController < ActionController::Base
     @title = t "user.no_such_user.title"
     @not_found_user = name
 
-    render :template => "user/no_such_user", :status => :not_found
+    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