Merge branch 'master' into openid

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

diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb
index c0af0d3e5358487e92d6826110f62c76e0e3b897..fc59ffcc7c0f3535c495aa632b632e4c50baa636 100644 (file)
--- a/app/controllers/api_controller.rb
+++ b/app/controllers/api_controller.rb
@@ -1,33 +1,24 @@
 class ApiController < ApplicationController
 
 class ApiController < ApplicationController
 

-  session :off

   before_filter :check_api_readable, :except => [:capabilities]
   after_filter :compress_output
   before_filter :check_api_readable, :except => [:capabilities]
   after_filter :compress_output

+  around_filter :api_call_handle_error, :api_call_timeout

 
   # Help methods for checking boundary sanity and area size
   include MapBoundary
 
 
   # Help methods for checking boundary sanity and area size
   include MapBoundary
 

-  # The maximum area you're allowed to request, in square degrees
-  MAX_REQUEST_AREA = APP_CONFIG['max_request_area']
-
-  # Number of GPS trace/trackpoints returned per-page
-  TRACEPOINTS_PER_PAGE = APP_CONFIG['tracepoints_per_page']
-

   # Get an XML response containing a list of tracepoints that have been uploaded
   # within the specified bounding box, and in the specified page.
   def trackpoints
     #retrieve the page number
   # Get an XML response containing a list of tracepoints that have been uploaded
   # within the specified bounding box, and in the specified page.
   def trackpoints
     #retrieve the page number

-    page = params['page'].to_i
-    unless page
-        page = 0;
-    end
+    page = params['page'].to_s.to_i

 
     unless page >= 0
         report_error("Page number must be greater than or equal to 0")
         return
     end
 
 
     unless page >= 0
         report_error("Page number must be greater than or equal to 0")
         return
     end
 

-    offset = page * TRACEPOINTS_PER_PAGE
+    offset = page * APP_CONFIG['tracepoints_per_page']

 
     # Figure out the bbox
     bbox = params['bbox']
 
     # Figure out the bbox
     bbox = params['bbox']


@@ -48,7 +39,7 @@ class ApiController < ApplicationController
     end
 
     # get all the points
     end
 
     # get all the points

-    points = Tracepoint.find_by_area(min_lat, min_lon, max_lat, max_lon, :offset => offset, :limit => TRACEPOINTS_PER_PAGE, :order => "timestamp DESC" )
+    points = Tracepoint.find_by_area(min_lat, min_lon, max_lat, max_lon, :offset => offset, :limit => APP_CONFIG['tracepoints_per_page'], :order => "gpx_id DESC, trackid ASC, timestamp ASC" )

 
     doc = XML::Document.new
     doc.encoding = XML::Encoding::UTF_8
 
     doc = XML::Document.new
     doc.encoding = XML::Encoding::UTF_8


@@ -59,17 +50,64 @@ class ApiController < ApplicationController
     
     doc.root = root
 
     
     doc.root = root
 

-    track = XML::Node.new 'trk'
-    doc.root << track
-
-    trkseg = XML::Node.new 'trkseg'
-    track << trkseg
+    # initialise these variables outside of the loop so that they
+    # stay in scope and don't get free'd up by the GC during the
+    # loop.
+    gpx_id = -1
+    trackid = -1
+    track = nil
+    trkseg = nil
+    anon_track = nil
+    anon_trkseg = nil
+    gpx_file = nil
+    timestamps = false

 
     points.each do |point|
 
     points.each do |point|

-      trkseg << point.to_xml_node()
+      if gpx_id != point.gpx_id
+        gpx_id = point.gpx_id
+        trackid = -1
+        gpx_file = Trace.find(gpx_id)
+
+        if gpx_file.trackable?
+          track = XML::Node.new 'trk'
+          doc.root << track
+          timestamps = true
+
+          if gpx_file.identifiable?
+            track << (XML::Node.new("name") << gpx_file.name)
+            track << (XML::Node.new("desc") << gpx_file.description)
+            track << (XML::Node.new("url") << url_for(:controller => 'trace', :action => 'view', :id => gpx_file.id))
+          end
+        else
+          # use the anonymous track segment if the user hasn't allowed
+          # their GPX points to be tracked.
+          timestamps = false
+          if anon_track.nil? 
+            anon_track = XML::Node.new 'trk'
+            doc.root << anon_track
+          end
+          track = anon_track
+        end
+      end
+      
+      if trackid != point.trackid
+        if gpx_file.trackable?
+          trkseg = XML::Node.new 'trkseg'
+          track << trkseg
+          trackid = point.trackid
+        else
+          if anon_trkseg.nil? 
+            anon_trkseg = XML::Node.new 'trkseg'
+            anon_track << anon_trkseg
+          end
+          trkseg = anon_trkseg
+        end
+      end
+
+      trkseg << point.to_xml_node(timestamps)

     end
 
     end
 

-    response.headers["Content-Disposition"] = "attachment; filename=\"map.osm\""
+    response.headers["Content-Disposition"] = "attachment; filename=\"tracks.gpx\""

 
     render :text => doc.to_s, :content_type => "text/xml"
   end
 
     render :text => doc.to_s, :content_type => "text/xml"
   end


@@ -107,7 +145,7 @@ class ApiController < ApplicationController
     end
 
     # FIXME um why is this area using a different order for the lat/lon from above???
     end
 
     # FIXME um why is this area using a different order for the lat/lon from above???

-    @nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => {:visible => true}, :limit => APP_CONFIG['max_number_of_nodes']+1)
+    @nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => {:visible => true}, :include => :node_tags, :limit => APP_CONFIG['max_number_of_nodes']+1)

     # get all the nodes, by tag not yet working, waiting for change from NickB
     # need to be @nodes (instance var) so tests in /spec can be performed
     #@nodes = Node.search(bbox, params[:tag])
     # get all the nodes, by tag not yet working, waiting for change from NickB
     # need to be @nodes (instance var) so tests in /spec can be performed
     #@nodes = Node.search(bbox, params[:tag])


@@ -138,7 +176,7 @@ class ApiController < ApplicationController
     if node_ids.length > 0
       way_nodes = WayNode.find_all_by_node_id(node_ids)
       way_ids = way_nodes.collect { |way_node| way_node.id[0] }
     if node_ids.length > 0
       way_nodes = WayNode.find_all_by_node_id(node_ids)
       way_ids = way_nodes.collect { |way_node| way_node.id[0] }

-      ways = Way.find(way_ids)
+      ways = Way.find(way_ids, :include => [:way_nodes, :way_tags])

 
       list_of_way_nodes = ways.collect { |way|
         way.way_nodes.collect { |way_node| way_node.node_id }
 
       list_of_way_nodes = ways.collect { |way|
         way.way_nodes.collect { |way_node| way_node.node_id }


@@ -153,7 +191,7 @@ class ApiController < ApplicationController
     nodes_to_fetch = (list_of_way_nodes.uniq - node_ids) - [0]
 
     if nodes_to_fetch.length > 0
     nodes_to_fetch = (list_of_way_nodes.uniq - node_ids) - [0]
 
     if nodes_to_fetch.length > 0

-      @nodes += Node.find(nodes_to_fetch)
+      @nodes += Node.find(nodes_to_fetch, :include => :node_tags)

     end
 
     visible_nodes = {}
     end
 
     visible_nodes = {}


@@ -188,7 +226,7 @@ class ApiController < ApplicationController
     # this "uniq" may be slightly inefficient; it may be better to first collect and output
     # all node-related relations, then find the *not yet covered* way-related ones etc.
     relations.uniq.each do |relation|
     # this "uniq" may be slightly inefficient; it may be better to first collect and output
     # all node-related relations, then find the *not yet covered* way-related ones etc.
     relations.uniq.each do |relation|

-      doc.root << relation.to_xml_node(changeset_cache, user_display_name_cache)
+      doc.root << relation.to_xml_node(nil, changeset_cache, user_display_name_cache)

     end
 
     response.headers["Content-Disposition"] = "attachment; filename=\"map.osm\""
     end
 
     response.headers["Content-Disposition"] = "attachment; filename=\"map.osm\""


@@ -257,7 +295,7 @@ class ApiController < ApplicationController
     version['maximum'] = "#{API_VERSION}";
     api << version
     area = XML::Node.new 'area'
     version['maximum'] = "#{API_VERSION}";
     api << version
     area = XML::Node.new 'area'

-    area['maximum'] = MAX_REQUEST_AREA.to_s;
+    area['maximum'] = APP_CONFIG['max_request_area'].to_s;

     api << area
     tracepoints = XML::Node.new 'tracepoints'
     tracepoints['per_page'] = APP_CONFIG['tracepoints_per_page'].to_s
     api << area
     tracepoints = XML::Node.new 'tracepoints'
     tracepoints['per_page'] = APP_CONFIG['tracepoints_per_page'].to_s


@@ -268,6 +306,9 @@ class ApiController < ApplicationController
     changesets = XML::Node.new 'changesets'
     changesets['maximum_elements'] = Changeset::MAX_ELEMENTS.to_s
     api << changesets
     changesets = XML::Node.new 'changesets'
     changesets['maximum_elements'] = Changeset::MAX_ELEMENTS.to_s
     api << changesets

+    timeout = XML::Node.new 'timeout'
+    timeout['seconds'] = APP_CONFIG['api_timeout'].to_s
+    api << timeout

     
     doc.root << api
 
     
     doc.root << api