X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/6d8353821bd431b4f6221449cd33759078622931..34e3e51456774127d43408b7ab65c24f41373f62:/app/controllers/way_controller.rb

diff --git a/app/controllers/way_controller.rb b/app/controllers/way_controller.rb
index d297f0acc..3291ce8b7 100644
--- a/app/controllers/way_controller.rb
+++ b/app/controllers/way_controller.rb
@@ -1,138 +1,121 @@
-class WayController < ApplicationController
+class WayController < ApplicationController
   require 'xml/libxml'
 
-  before_filter :authorize
+  skip_before_filter :verify_authenticity_token
+  before_filter :authorize, :only => [:create, :update, :delete]
+  before_filter :require_allow_write_api, :only => [:create, :update, :delete]
+  before_filter :require_public_data, :only => [:create, :update, :delete]
+  before_filter :check_api_writable, :only => [:create, :update, :delete]
+  before_filter :check_api_readable, :except => [:create, :update, :delete]
   after_filter :compress_output
-  
+  around_filter :api_call_handle_error, :api_call_timeout
+
   def create
-    if request.put?
-      way = Way.from_xml(request.raw_post, true)
-
-      if way
-        way.user_id = @user.id
-        unless way.preconditions_ok? # are the segments (and their nodes) visible?
-          render :nothing => true, :status => 412
-          return
-        end
+    assert_method :put
 
-        if way.save_with_history
-          render :text => way.id.to_s
-          return
-        else
-          render :nothing => true, :status => 500
-          return
-        end
-        return
-      else
-        render :nothing => true, :status => 400 # if we got here the doc didnt parse
-        return
-      end
+    way = Way.from_xml(request.raw_post, true)
+
+    if way
+      way.create_with_history @user
+      render :text => way.id.to_s, :content_type => "text/plain"
+    else
+      render :text => "", :status => :bad_request
     end
+  end
+
+  def read
+    way = Way.find(params[:id])
 
-    render :nothing => true, :status => 500 # something went very wrong
+    response.last_modified = way.timestamp
+
+    if way.visible
+      render :text => way.to_xml.to_s, :content_type => "text/xml"
+    else
+      render :text => "", :status => :gone
+    end
   end
 
-  def full
-    unless Way.exists?(params[:id])
-      render :nothing => true, :status => 404
-      return
+  def update
+    way = Way.find(params[:id])
+    new_way = Way.from_xml(request.raw_post)
+
+    if new_way and new_way.id == way.id
+      way.update_from(new_way, @user)
+      render :text => way.version.to_s, :content_type => "text/plain"
+    else
+      render :text => "", :status => :bad_request
     end
+  end
 
+  # This is the API call to delete a way
+  def delete
     way = Way.find(params[:id])
+    new_way = Way.from_xml(request.raw_post)
 
-    unless way.visible
-      render :nothing => true, :status => 410
-      return
+    if new_way and new_way.id == way.id
+      way.delete_with_history!(new_way, @user)
+      render :text => way.version.to_s, :content_type => "text/plain"
+    else
+      render :text => "", :status => :bad_request
     end
+  end
 
-    # In future, we might want to do all the data fetch in one step
-    seg_ids = way.segs + [-1]
-    segments = Segment.find_by_sql "select * from current_segments where visible = 1 and id IN (#{seg_ids.join(',')})"
+  def full
+    way = Way.includes(:nodes => :node_tags).find(params[:id])
 
-    node_ids = segments.collect {|segment| segment.node_a }
-    node_ids += segments.collect {|segment| segment.node_b }
-    node_ids += [-1]
-    nodes = Node.find(:all, :conditions => "visible = 1 AND id IN (#{node_ids.join(',')})")
+    if way.visible
+      visible_nodes = {}
+      changeset_cache = {}
+      user_display_name_cache = {}
 
-    # Render
-    doc = OSM::API.new.get_xml_doc
-    nodes.each do |node|
-      doc.root << node.to_xml_node()
-    end
-    segments.each do |segment|
-      doc.root << segment.to_xml_node()
-    end
-    doc.root << way.to_xml_node()
+      doc = OSM::API.new.get_xml_doc
+      way.nodes.uniq.each do |node|
+        if node.visible
+          doc.root << node.to_xml_node(changeset_cache, user_display_name_cache)
+          visible_nodes[node.id] = node
+        end
+      end
+      doc.root << way.to_xml_node(visible_nodes, changeset_cache, user_display_name_cache)
 
-    render :text => doc.to_s
+      render :text => doc.to_s, :content_type => "text/xml"
+    else
+      render :text => "", :status => :gone
+    end
   end
 
-  def rest
-    unless Way.exists?(params[:id])
-      render :nothing => true, :status => 404
-      return
+  def ways
+    if not params['ways']
+      raise OSM::APIBadUserInput.new("The parameter ways is required, and must be of the form ways=id[,id[,id...]]")
     end
 
-    way = Way.find(params[:id])
-    case request.method
+    ids = params['ways'].split(',').collect { |w| w.to_i }
 
-    when :get
-      unless way.visible
-        render :nothing => true, :status => 410
-        return
-      end
-      render :text => way.to_xml.to_s
+    if ids.length == 0
+      raise OSM::APIBadUserInput.new("No ways were given to search for")
+    end
 
-    when :delete
-      unless way.visible
-        render :nothing => true, :status => 410
-        return
-      end
+    doc = OSM::API.new.get_xml_doc
 
-      way.visible = false
-      way.save_with_history
-      render :nothing => true
-      return
-    when :put
-      way = Way.from_xml(request.raw_post)
-
-      if way
-        way_in_db = Way.find(way.id)
-        if way_in_db
-          way_in_db.user_id = @user.id
-          way_in_db.tags = way.tags
-          way_in_db.segs = way.segs
-          way_in_db.timestamp = way.timestamp
-          way_in_db.visible = true
-          if way_in_db.save_with_history
-            render :text => way.id
-          else
-            render :nothing => true, :status => 500
-          end
-          return
-        else
-          render :nothing => true, :status => 404 # way doesn't exist yet
-        end
-      else
-        render :nothing => true, :status => 400 # if we got here the doc didnt parse
-        return
-      end
+    Way.find(ids).each do |way|
+      doc.root << way.to_xml_node
     end
+
+    render :text => doc.to_s, :content_type => "text/xml"
   end
 
-  def ways
-    response.headers["Content-Type"] = 'text/xml'
-    ids = params['ways'].split(',').collect {|w| w.to_i }
-    if ids.length > 0
-      waylist = Way.find(ids)
-      doc = OSM::API.new.get_xml_doc
-      waylist.each do |way|
-        doc.root << way.to_xml_node
-      end 
-      render :text => doc.to_s
-    else
-      render :nothing => true, :status => 400
+  ##
+  # returns all the ways which are currently using the node given in the
+  # :id parameter. note that this used to return deleted ways as well, but
+  # this seemed not to be the expected behaviour, so it was removed.
+  def ways_for_node
+    wayids = WayNode.where(:node_id => params[:id]).collect { |ws| ws.id[0] }.uniq
+
+    doc = OSM::API.new.get_xml_doc
+
+    Way.find(wayids).each do |way|
+      doc.root << way.to_xml_node if way.visible
     end
-  end
 
+    render :text => doc.to_s, :content_type => "text/xml"
+  end
 end