X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/783528830ad1b0d5f07c8e758747841a0b4e5cc6..c0b4c1b9059890e1fb683a9822b966d4efd2698c:/app/controllers/changeset_controller.rb

diff --git a/app/controllers/changeset_controller.rb b/app/controllers/changeset_controller.rb
index 5e538c721..f7f4dc9f0 100644
--- a/app/controllers/changeset_controller.rb
+++ b/app/controllers/changeset_controller.rb
@@ -3,6 +3,7 @@
 class ChangesetController < ApplicationController
   require 'xml/libxml'
 
+  session :off
   before_filter :authorize, :only => [:create, :update, :delete, :upload, :include, :close]
   before_filter :check_write_availability, :only => [:create, :update, :delete, :upload, :include]
   before_filter :check_read_availability, :except => [:create, :update, :delete, :upload, :download, :query]
@@ -11,6 +12,9 @@ class ChangesetController < ApplicationController
   # Help methods for checking boundary sanity and area size
   include MapBoundary
 
+  # Helper methods for checking consistency
+  include ConsistencyValidations
+
   # Create a changeset from XML.
   def create
     if request.put?
@@ -28,6 +32,9 @@ class ChangesetController < ApplicationController
     end
   end
 
+  ##
+  # Return XML giving the basic info about the changeset. Does not 
+  # return anything about the nodes, ways and relations in the changeset.
   def read
     begin
       changeset = Changeset.find(params[:id])
@@ -46,12 +53,9 @@ class ChangesetController < ApplicationController
       return
     end
     
-    changeset = Changeset.find(params[:id])
-    
-    unless @user.id == changeset.user_id 
-      raise OSM::APIUserChangesetMismatchError 
-    end
-    
+    changeset = Changeset.find(params[:id])    
+    check_changeset_consistency(changeset, @user)
+
     # to close the changeset, we'll just set its closed_at time to
     # now. this might not be enough if there are concurrency issues, 
     # but we'll have to wait and see.
@@ -70,17 +74,12 @@ class ChangesetController < ApplicationController
   # increase the size of the bounding box. this is a hint that clients can
   # set either before uploading a large number of changes, or changes that
   # the client (but not the server) knows will affect areas further away.
-  def include
+  def expand_bbox
     # only allow POST requests, because although this method is
     # idempotent, there is no "document" to PUT really...
     if request.post?
       cs = Changeset.find(params[:id])
-
-      # check user credentials - only the user who opened a changeset
-      # may alter it.
-      unless @user.id == cs.user_id 
-        raise OSM::APIUserChangesetMismatchError 
-      end
+      check_changeset_consistency(cs, @user)
 
       # keep an array of lons and lats
       lon = Array.new
@@ -142,12 +141,7 @@ class ChangesetController < ApplicationController
     end
 
     changeset = Changeset.find(params[:id])
-
-    # access control - only the user who created a changeset may
-    # upload to it.
-    unless @user.id == changeset.user_id 
-      raise OSM::APIUserChangesetMismatchError 
-    end
+    check_changeset_consistency(changeset, @user)
     
     diff_reader = DiffReader.new(request.raw_post, changeset)
     Changeset.transaction do
@@ -281,6 +275,7 @@ class ChangesetController < ApplicationController
     new_changeset = Changeset.from_xml(request.raw_post)
 
     unless new_changeset.nil?
+      check_changeset_consistency(changeset, @user)
       changeset.update_from(new_changeset, @user)
       render :text => changeset.to_xml, :mime_type => "text/xml"
     else
@@ -294,6 +289,7 @@ class ChangesetController < ApplicationController
     render ex.render_opts
   end
 
+private
   #------------------------------------------------------------
   # utility functions below.
   #------------------------------------------------------------