before_filter :check_read_availability, :except => [:capabilities]
after_filter :compress_output
+ # Help methods for checking boundary sanity and area size
+ include MapBoundary
+
#COUNT is the number of map requests to allow before exiting and starting a new process
@@count = COUNT
# The maximum area you're allowed to request, in square degrees
MAX_REQUEST_AREA = 0.25
-
# Number of GPS trace/trackpoints returned per-page
TRACEPOINTS_PER_PAGE = 5000
+
def trackpoints
@@count+=1
# Figure out the bbox
bbox = params['bbox']
+
unless bbox and bbox.count(',') == 3
+ # alternatively: report_error(TEXT['boundary_parameter_required']
report_error("The parameter bbox is required, and must be of the form min_lon,min_lat,max_lon,max_lat")
return
end
bbox = bbox.split(',')
- min_lon = bbox[0].to_f
- min_lat = bbox[1].to_f
- max_lon = bbox[2].to_f
- max_lat = bbox[3].to_f
+ min_lon, min_lat, max_lon, max_lat = *bbox.map{|b| b.to_f }
- # check the bbox is sane
- unless min_lon <= max_lon
- report_error("The minimum longitude must be less than the maximum longitude, but it wasn't")
- return
- end
- unless min_lat <= max_lat
- report_error("The minimum latitude must be less than the maximum latitude, but it wasn't")
- return
- end
- unless min_lon >= -180 && min_lat >= -90 && max_lon <= 180 && max_lat <= 90
- report_error("The latitudes must be between -90 and 90, and longitudes between -180 and 180")
- return
- end
-
- # check the bbox isn't too large
- requested_area = (max_lat-min_lat)*(max_lon-min_lon)
- if requested_area > MAX_REQUEST_AREA
- report_error("The maximum bbox size is " + MAX_REQUEST_AREA.to_s +
- ", and your request was too large. Either request a smaller area, or use planet.osm")
+ # check boundary is sane and area within defined
+ # see /config/application.yml
+ begin
+ check_boundaries(min_lon, min_lat, max_lon, max_lat)
+ rescue Exception => err
+ report_error(err.message)
return
end
# get all the nodes
- nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => "visible = 1")
+ nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => "visible = 1", :limit => APP_CONFIG['max_number_of_nodes']+1)
node_ids = nodes.collect {|node| node.id }
-
- if node_ids.length > 50_000
+ if node_ids.length > APP_CONFIG['max_number_of_nodes']
report_error("You requested too many nodes (limit is 50,000). Either request a smaller area, or use planet.osm")
return
end
ways = Array.new
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 }
+ way_ids = way_nodes.collect {|way_node| way_node.id[0] }
ways = Way.find(way_ids)
list_of_way_nodes = ways.collect { |way|
# collect relationships. currently done in one big block at the end;
# may need to move this upwards if people want automatic completion of
# relationships, i.e. deliver referenced objects like we do with ways...
- relations = Relation.find_by_sql("select e.* from current_relations e,current_relation_members em where " +
- "e.visible=1 and " +
- "em.id = e.id and em.member_type='node' and em.member_id in (#{visible_nodes.keys.join(',')})")
- relations += Relation.find_by_sql("select e.* from current_relations e,current_relation_members em where " +
- "e.visible=1 and " +
- "em.id = e.id and em.member_type='way' and em.member_id in (#{way_ids.join(',')})")
+ relations = Array.new
+ if visible_nodes.length > 0
+ relations += Relation.find_by_sql("select e.* from current_relations e,current_relation_members em where " +
+ "e.visible=1 and " +
+ "em.id = e.id and em.member_type='node' and em.member_id in (#{visible_nodes.keys.join(',')})")
+ end
+ if way_ids.length > 0
+ relations += Relation.find_by_sql("select e.* from current_relations e,current_relation_members em where " +
+ "e.visible=1 and " +
+ "em.id = e.id and em.member_type='way' and em.member_id in (#{way_ids.join(',')})")
+ end
# we do not normally return the "other" partners referenced by an relation,
# e.g. if we return a way A that is referenced by relation X, and there's
# another way B also referenced, that is not returned. But we do make
end
end
+ def changes
+ zoom = (params[:zoom] || '12').to_i
+
+ if params.include?(:start) and params.include?(:end)
+ starttime = Time.parse(params[:start])
+ endtime = Time.parse(params[:end])
+ else
+ hours = (params[:hours] || '1').to_i.hours
+ endtime = Time.now
+ starttime = endtime - hours
+ end
+
+ if zoom >= 1 and zoom <= 16 and
+ endtime >= starttime and endtime - starttime <= 24.hours
+ mask = (1 << zoom) - 1
+
+ tiles = Node.count(:conditions => ["timestamp BETWEEN ? AND ?", starttime, endtime],
+ :group => "maptile_for_point(latitude, longitude, #{zoom})")
+
+ doc = OSM::API.new.get_xml_doc
+ changes = XML::Node.new 'changes'
+ changes["starttime"] = starttime.xmlschema
+ changes["endtime"] = endtime.xmlschema
+
+ tiles.each do |tile, count|
+ x = (tile.to_i >> zoom) & mask
+ y = tile.to_i & mask
+
+ t = XML::Node.new 'tile'
+ t["x"] = x.to_s
+ t["y"] = y.to_s
+ t["z"] = zoom.to_s
+ t["changes"] = count.to_s
+
+ changes << t
+ end
+
+ doc.root << changes
+
+ render :text => doc.to_s, :content_type => "text/xml"
+ else
+ render :nothing => true, :status => :bad_request
+ end
+ end
+
def capabilities
doc = OSM::API.new.get_xml_doc
projects / rails.git / blobdiff