# rather than only a status code and having the web engine make up a
# phrase from that, we can also put the error message into the status
# message. For now, rails won't let us)
- def report_error(message)
+ def report_error(message, status = :bad_request)
# Todo: some sort of escaping of problem characters in the message
response.headers['Error'] = message
- render :text => message, :status => :bad_request
+ render :text => message, :status => status
end
+
+ def set_locale
+ if @user
+ if !@user.languages.empty?
+ request.user_preferred_languages = @user.languages
+ elsif !request.user_preferred_languages.empty?
+ @user.languages = request.user_preferred_languages
+ @user.save
+ end
+ end
-private
+ I18n.locale = request.compatible_language_from(I18n.available_locales)
+ end
+ def api_call_handle_error
+ begin
+ yield
+ rescue ActiveRecord::RecordNotFound => ex
+ render :nothing => true, :status => :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})" }
+ report_error message, :bad_request
+ rescue OSM::APIError => ex
+ report_error ex.message, ex.status
+ rescue Exception => ex
+ report_error "#{ex.class}: #{ex.message}", :internal_server_error
+ end
+ end
+
+ ##
+ # asserts that the request method is the +method+ given as a parameter
+ # or raises a suitable error. +method+ should be a symbol, e.g: :put or :get.
+ def assert_method(method)
+ ok = request.send((method.to_s.downcase + "?").to_sym)
+ raise OSM::APIBadMethodError.new(method) unless ok
+ end
+
+ def api_call_timeout
+ Timeout::timeout(APP_CONFIG['api_timeout'], OSM::APITimeoutError) do
+ yield
+ end
+ end
+
+private
# extract authorisation credentials from headers, returns user = nil if none
def get_auth_data
if request.env.has_key? 'X-HTTP_AUTHORIZATION' # where mod_rewrite might have put it