openstreetmap-website/app/controllers/old_controller.rb
2015-02-20 19:47:26 +00:00

76 lines
2.3 KiB
Ruby

# this class pulls together the logic for all the old_* controllers
# into one place. as it turns out, the API methods for historical
# nodes, ways and relations are basically identical.
class OldController < ApplicationController
require "xml/libxml"
skip_before_filter :verify_authenticity_token
before_filter :setup_user_auth, :only => [:history, :version]
before_filter :authorize, :only => [:redact]
before_filter :authorize_moderator, :only => [:redact]
before_filter :require_allow_write_api, :only => [:redact]
before_filter :check_api_readable
before_filter :check_api_writable, :only => [:redact]
after_filter :compress_output
around_filter :api_call_handle_error, :api_call_timeout
before_filter :lookup_old_element, :except => [:history]
before_filter :lookup_old_element_versions, :only => [:history]
def history
# the .where() method used in the lookup_old_element_versions
# call won't throw an error if no records are found, so we have
# to do that ourselves.
fail OSM::APINotFoundError.new if @elements.empty?
doc = OSM::API.new.get_xml_doc
visible_elements = if show_redactions?
@elements
else
@elements.unredacted
end
visible_elements.each do |element|
doc.root << element.to_xml_node
end
render :text => doc.to_s, :content_type => "text/xml"
end
def version
if @old_element.redacted? && !show_redactions?
render :text => "", :status => :forbidden
else
response.last_modified = @old_element.timestamp
doc = OSM::API.new.get_xml_doc
doc.root << @old_element.to_xml_node
render :text => doc.to_s, :content_type => "text/xml"
end
end
def redact
redaction_id = params["redaction"]
if redaction_id.nil?
# if no redaction ID was provided, then this is an unredact
# operation.
@old_element.redact!(nil)
else
# if a redaction ID was specified, then set this element to
# be redacted in that redaction.
redaction = Redaction.find(redaction_id.to_i)
@old_element.redact!(redaction)
end
# just return an empty 200 OK for success
render :text => ""
end
private
def show_redactions?
@user && @user.moderator? && params[:show_redactions] == "true"
end
end