X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/8c5638d6968be3286414f04b8dee2261ada84e76..5cc8afd896ee2c8f138c955844cdca6e618a7efa:/app/controllers/changeset_controller.rb

diff --git a/app/controllers/changeset_controller.rb b/app/controllers/changeset_controller.rb
index 1041c7469..8668611eb 100644
--- a/app/controllers/changeset_controller.rb
+++ b/app/controllers/changeset_controller.rb
@@ -3,9 +3,10 @@
 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
@@ -23,4 +24,146 @@ class ChangesetController < ApplicationController
       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
+      if not 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
+    if not 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}
+
+    res = XML::Document.new
+    res.encoding = 'UTF-8'
+    root = XML::Node.new 'osm'
+    root['version'] = '0.6'
+    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