class ChangesetController < ApplicationController
require 'xml/libxml'
- before_filter :authorize, :only => [:create, :update, :delete]
- before_filter :check_write_availability, :only => [:create, :update, :delete]
- before_filter :check_read_availability, :except => [:create, :update, :delete]
+ before_filter :authorize, :only => [:create, :update, :delete, :upload]
+ before_filter :check_write_availability, :only => [:create, :update, :delete, :upload]
+ before_filter :check_read_availability, :except => [:create, :update, :delete, :upload]
+ after_filter :compress_output
# Create a changeset from XML.
def create
render :nothing => true, :status => :method_not_allowed
end
end
+
+ def create_prim(ids, prim, nd)
+ prim.version = 0
+ prim.user_id = @user.id
+ prim.visible = true
+ prim.save_with_history!
+
+ ids[nd['id'].to_i] = prim.id
+ end
+
+ def fix_way(w, node_ids)
+ w.nds = w.instance_eval { @nds }.
+ map { |nd| node_ids[nd] || nd }
+ return w
+ end
+
+ def fix_rel(r, ids)
+ r.members = r.instance_eval { @members }.
+ map { |memb| [memb[0], ids[memb[0]][memb[1].to_i] || memb[1], memb[2]] }
+ return r
+ end
+
+ def read
+ begin
+ changeset = Changeset.find(params[:id])
+ render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+ end
+
+ def close
+ begin
+ unless request.put?
+ render :nothing => true, :status => :method_not_allowed
+ return
+ end
+ changeset = Changeset.find(params[:id])
+ changeset.open = false
+ changeset.save!
+ render :nothing => true
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+ end
+
+ def upload
+ unless request.put?
+ render :nothing => true, :status => :method_not_allowed
+ return
+ end
+
+ p = XML::Reader.new request.raw_post
+
+ node_ids, way_ids, rel_ids = {}, {}, {}
+ ids = {"node"=>node_ids, "way"=>way_ids, "relation"=>rel_ids}
+
+ models = {"node"=>Node, "way"=>Way, "relation"=>Relation}
+
+ # FIXME shouldn't this be done through the
+ # res = OSM::API.new.get_xml_doc
+ # as everything else is?
+ res = XML::Document.new
+ res.encoding = 'UTF-8'
+ root = XML::Node.new 'osm'
+ root['version'] = API_VERSION
+ root['creator'] = 'OpenStreetMap.org'
+ res.root = root
+
+ root << XML::Node.new_comment(" Warning: this is a 0.6 result document, " +
+ "not a normal OSM file. ")
+
+ Changeset.transaction do
+ while p.read == 1
+ break if p.node_type == 15 # end element
+ next unless p.node_type == 1 # element
+
+ case p.name
+ when 'create':
+ while p.read == 1
+ break if p.node_type == 15 # end element
+ next unless p.node_type == 1 # element
+
+ model = models[p.name]
+ next if model.nil?
+
+ elem = XML::Node.new p.name
+ nd = p.expand; p.next
+ osm = model.from_xml_node(nd, true)
+ elem['old_id'] = nd['id']
+
+ case nd.name
+ when 'way':
+ fix_way(osm, node_ids)
+ raise OSM::APIPreconditionFailedError.new if !osm.preconditions_ok?
+ when 'relation':
+ fix_rel(osm, ids)
+ raise OSM::APIPreconditionFailedError.new if !osm.preconditions_ok?
+ end
+
+ create_prim ids[nd.name], osm, nd
+ elem['new_id'] = osm.id.to_s
+ elem['new_version'] = osm.version.to_s
+ root << elem
+ end
+ when 'modify':
+ while p.read == 1
+ break if p.node_type == 15 # end element
+ next unless p.node_type == 1 # element
+
+ model = models[p.name]
+ next if model.nil?
+
+ elem = XML::Node.new p.name
+ new_osm = model.from_xml_node(p.expand); p.next
+ osm = model.find(new_osm.id)
+ osm.update_from new_osm, @user
+ elem['old_id'] = elem['new_id'] = osm.id.to_s
+ elem['new_version'] = osm.version.to_s
+ root << elem
+ end
+ when 'delete':
+ while p.read == 1
+ break if p.node_type == 15 # end element
+ next unless p.node_type == 1 # element
+
+ model = models[p.name]
+ next if model.nil?
+
+ elem = XML::Node.new p.name
+ osm = model.find(p.expand['id']); p.next
+ osm.delete_with_history(@user)
+ elem['old_id'] = elem['new_id'] = osm.id.to_s
+ elem['new_version'] = osm.version.to_s
+ root << elem
+ end
+ end
+ end
+ end
+
+ render :text => res.to_s, :content_type => "text/xml"
+
+ rescue OSM::APIError => ex
+ render ex.render_opts
+ end
end