X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/c11d961f624cb610c4b8184d24e522b2c093d1ea..9328e84ba18070c73975c64e84f6bcf2890b87dc:/app/controllers/node_controller.rb

diff --git a/app/controllers/node_controller.rb b/app/controllers/node_controller.rb
index f2a3ce329..edc3675e5 100644
--- a/app/controllers/node_controller.rb
+++ b/app/controllers/node_controller.rb
@@ -1,107 +1,111 @@
+# The NodeController is the RESTful interface to Node objects
+
 class NodeController < ApplicationController
   require 'xml/libxml'
 
-  before_filter :authorize
+  session :off
+  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]
   after_filter :compress_output
 
+  # Create a node from XML.
   def create
-    response.headers["Content-Type"] = 'text/xml'
     if request.put?
       node = Node.from_xml(request.raw_post, true)
 
       if node
         node.user_id = @user.id
-        node.visible = 1
-        if node.save_with_history
-          render :text => node.id.to_s
-        else
-          render :nothing => true, :status => 500
-        end
-        return
+        node.visible = true
+        node.save_with_history!
 
+        render :text => node.id.to_s, :content_type => "text/plain"
       else
-        render :nothing => true, :status => 400 # if we got here the doc didnt parse
-        return
+        render :nothing => true, :status => :bad_request
       end
+    else
+      render :nothing => true, :status => :method_not_allowed
     end
-
-    render :nothing => true, :status => 500 # something went very wrong
   end
 
-  def rest
-    response.headers["Content-Type"] = 'text/xml'
-    unless Node.exists?(params[:id])
-      render :nothing => true, :status => 404
-      return
+  # Dump the details on a node given in params[:id]
+  def read
+    begin
+      node = Node.find(params[:id])
+      if node.visible
+        response.headers['Last-Modified'] = node.timestamp.rfc822
+        render :text => node.to_xml.to_s, :content_type => "text/xml"
+       else
+        render :text => "", :status => :gone
+      end
+    rescue ActiveRecord::RecordNotFound
+      render :nothing => true, :status => :not_found
     end
+  end
 
-    node = Node.find(params[:id])
-
-    case request.method
+  # Update a node from given XML
+  def update
+    begin
+      node = Node.find(params[:id])
+      new_node = Node.from_xml(request.raw_post)
 
-    when :get
-      unless node
-        render :nothing => true, :status => 500
-        return
-      end
+      if new_node and new_node.id == node.id
+        node.user_id = @user.id
+        node.latitude = new_node.latitude 
+        node.longitude = new_node.longitude
+        node.tags = new_node.tags
+        node.visible = true
+        node.save_with_history!
 
-      unless node.visible
-        render :nothing => true, :status => 410
-        return
+        render :nothing => true
+      else
+        render :nothing => true, :status => :bad_request
       end
+    rescue ActiveRecord::RecordNotFound
+      render :nothing => true, :status => :not_found
+    end
+  end
 
-      render :text => node.to_xml.to_s
-      return
+  # Delete a node. Doesn't actually delete it, but retains its history in a wiki-like way.
+  # FIXME remove all the fricking SQL
+  def delete
+    begin
+      node = Node.find(params[:id])
 
-    when :delete
       if node.visible
-        if Segment.find(:first, :conditions => [ "visible = 1 and (node_a = ? or node_b = ?)", node.id, node.id])
-          render :nothing => true, :status => HTTP_PRECONDITION_FAILED
+        if WayNode.find(:first, :joins => "INNER JOIN current_ways ON current_ways.id = current_way_nodes.id", :conditions => [ "current_ways.visible = 1 AND current_way_nodes.node_id = ?", node.id ])
+          render :text => "", :status => :precondition_failed
+        elsif RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = 1 AND member_type='node' and member_id=?", params[:id]])
+          render :text => "", :status => :precondition_failed
         else
+          node.user_id = @user.id
           node.visible = 0
-          node.save_with_history
-          render :nothing => true
-        end
-      else
-        render :nothing => true, :status => 410
-      end
+          node.save_with_history!
 
-    when :put
-      new_node = Node.from_xml(request.raw_post)
-
-      if new_node
-        node.timestamp = Time.now
-        node.user_id = @user.id
-
-        node.latitude = new_node.latitude 
-        node.longitude = new_node.longitude
-        node.tags = new_node.tags
-
-        if node.id == new_node.id and node.save_with_history
           render :nothing => true
-        else
-          render :nothing => true, :status => 500
         end
       else
-        render :nothing => true, :status => 400 # if we got here the doc didnt parse
+        render :text => "", :status => :gone
       end
-      return
+    rescue ActiveRecord::RecordNotFound
+      render :nothing => true, :status => :not_found
     end
-
   end
 
+  # WTF does this do?
   def nodes
-    response.headers["Content-Type"] = 'text/xml'
-    ids = params['nodes'].split(',').collect {|n| n.to_i }
+    ids = params['nodes'].split(',').collect { |n| n.to_i }
+
     if ids.length > 0
-      nodelist = Node.find(ids)
-      doc = get_xml_doc
-      nodelist.each do |node|
+      doc = OSM::API.new.get_xml_doc
+
+      Node.find(ids).each do |node|
         doc.root << node.to_xml_node
       end 
-      render :text => doc.to_s
+
+      render :text => doc.to_s, :content_type => "text/xml"
     else
-      render :nothing => true, :status => 400
+      render :nothing => true, :status => :bad_request
     end
   end
 end