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[rails.git] / app / controllers / node_controller.rb

diff --git a/app/controllers/node_controller.rb b/app/controllers/node_controller.rb
index 3f3f882ae6cb5971c8c951da5e214f0d9a6f943b..20baf6bb4d0285575e8faa14d92ce08fc23e4bd8 100644 (file)
--- a/app/controllers/node_controller.rb
+++ b/app/controllers/node_controller.rb
@@ -1,113 +1,76 @@
+# The NodeController is the RESTful interface to Node objects
+

 class NodeController < ApplicationController
 class NodeController < ApplicationController

-  require 'xml/libxml'
+  require "xml/libxml"

 
 

-  before_filter :authorize, :only => [:create, :update, :delete]
-  after_filter :compress_output
+  skip_before_action :verify_authenticity_token
+  before_action :authorize, :only => [:create, :update, :delete]
+  before_action :require_allow_write_api, :only => [:create, :update, :delete]
+  before_action :require_public_data, :only => [:create, :update, :delete]
+  before_action :check_api_writable, :only => [:create, :update, :delete]
+  before_action :check_api_readable, :except => [:create, :update, :delete]
+  around_action :api_call_handle_error, :api_call_timeout

 
 

+  # Create a node from XML.

   def create
   def create

-    if request.put?
-      node = Node.from_xml(request.raw_post, true)
-
-      if node
-        node.user_id = @user.id
-        node.visible = true
-
-        if node.save_with_history
-          render :text => node.id.to_s, :content_type => "text/plain"
-        else
-          render :nothing => true, :status => :internal_server_error
-        end
-      else
-        render :nothing => true, :status => :bad_request
-      end
-    else
-      render :nothing => true, :status => :method_not_allowed
-    end
+    assert_method :put
+
+    node = Node.from_xml(request.raw_post, true)
+
+    # Assume that Node.from_xml has thrown an exception if there is an error parsing the xml
+    node.create_with_history current_user
+    render :plain => node.id.to_s

   end
 
   end
 

+  # Dump the details on a node given in params[:id]

   def read
   def read

-    begin
-      node = Node.find(params[:id])
-
-      if node.visible
-        render :text => node.to_xml.to_s, :content_type => "text/xml"
-       else
-        render :nothing => true, :status => :gone
-      end
-    rescue ActiveRecord::RecordNotFound
-      render :nothing => true, :status => :not_found
-    rescue
-      render :nothing => true, :status => :internal_server_error
+    node = Node.find(params[:id])
+
+    response.last_modified = node.timestamp
+
+    if node.visible
+      render :xml => node.to_xml.to_s
+    else
+      head :gone

     end
   end
 
     end
   end
 

+  # Update a node from given XML

   def update
   def update

-    begin
-      node = Node.find(params[:id])
-
-      if node.visible
-        new_node = Node.from_xml(request.raw_post)
-
-        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
-
-          if node.save_with_history
-            render :nothing => true
-          else
-            render :nothing => true, :status => :internal_server_error
-          end
-        else
-          render :nothing => true, :status => :bad_request
-        end
-      else
-        render :nothing => true, :status => :gone
-      end
-    rescue ActiveRecord::RecordNotFound
-      render :nothing => true, :status => :not_found
-    rescue
-      render :nothing => true, :status => :internal_server_error
-    end
+    node = Node.find(params[:id])
+    new_node = Node.from_xml(request.raw_post)
+
+    raise OSM::APIBadUserInput, "The id in the url (#{node.id}) is not the same as provided in the xml (#{new_node.id})" unless new_node && new_node.id == node.id
+
+    node.update_from(new_node, current_user)
+    render :plain => node.version.to_s

   end
 
   end
 

+  # Delete a node. Doesn't actually delete it, but retains its history
+  # in a wiki-like way. We therefore treat it like an update, so the delete
+  # method returns the new version number.

   def delete
   def delete

-    begin
-      node = Node.find(params[:id])
-
-      if node.visible
-        if Segment.find(:first, :conditions => [ "visible = 1 and (node_a = ? or node_b = ?)", node.id, node.id])
-          render :nothing => true, :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 => :gone
-      end
-    rescue ActiveRecord::RecordNotFound
-      render :nothing => true, :status => :not_found
-    rescue
-      render :nothing => true, :status => :internal_server_error
-    end
+    node = Node.find(params[:id])
+    new_node = Node.from_xml(request.raw_post)
+
+    raise OSM::APIBadUserInput, "The id in the url (#{node.id}) is not the same as provided in the xml (#{new_node.id})" unless new_node && new_node.id == node.id
+    node.delete_with_history!(new_node, current_user)
+    render :plain => node.version.to_s

   end
 
   end
 

+  # Dump the details on many nodes whose ids are given in the "nodes" parameter.

   def nodes
   def nodes

-    ids = params['nodes'].split(',').collect { |n| n.to_i }
+    raise OSM::APIBadUserInput, "The parameter nodes is required, and must be of the form nodes=id[,id[,id...]]" unless params["nodes"]

 
 

-    if ids.length > 0
-      doc = OSM::API.new.get_xml_doc
+    ids = params["nodes"].split(",").collect(&:to_i)

 
 

-      Node.find(ids).each do |node|
-        doc.root << node.to_xml_node
-      end 
+    raise OSM::APIBadUserInput, "No nodes were given to search for" if ids.empty?
+    doc = OSM::API.new.get_xml_doc

 
 

-      render :text => doc.to_s, :content_type => "text/xml"
-    else
-      render :nothing => true, :status => :bad_request
+    Node.find(ids).each do |node|
+      doc.root << node.to_xml_node

     end
     end

+
+    render :xml => doc.to_s

   end
 end
   end
 end