X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/d29a319ab0c9d692eb8a24f2d243282386d41346..3bb07e29ec7c178757f3c94eea84935a554d812d:/app/controllers/api_controller.rb diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb index a17e630c2..fb3717b2a 100644 --- a/app/controllers/api_controller.rb +++ b/app/controllers/api_controller.rb @@ -1,304 +1,3 @@ class ApiController < ApplicationController - - session :off - before_filter :check_read_availability, :except => [:capabilities] - after_filter :compress_output - - #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 - #retrieve the page number - page = params['page'].to_i - unless page - page = 0; - end - - unless page >= 0 - report_error("Page number must be greater than or equal to 0") - return - end - - offset = page * TRACEPOINTS_PER_PAGE - - # Figure out the bbox - bbox = params['bbox'] - unless bbox and bbox.count(',') == 3 - 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 - - # 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") - return - 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" ) - - doc = XML::Document.new - doc.encoding = 'UTF-8' - root = XML::Node.new 'gpx' - root['version'] = '1.0' - root['creator'] = 'OpenStreetMap.org' - root['xmlns'] = "http://www.topografix.com/GPX/1/0/" - - doc.root = root - - track = XML::Node.new 'trk' - doc.root << track - - trkseg = XML::Node.new 'trkseg' - track << trkseg - - points.each do |point| - trkseg << point.to_xml_node() - end - - #exit when we have too many requests - if @@count > MAX_COUNT - render :text => doc.to_s, :content_type => "text/xml" - @@count = COUNT - exit! - end - - render :text => doc.to_s, :content_type => "text/xml" - - end - - def map - GC.start - @@count+=1 - - # Figure out the bbox - bbox = params['bbox'] - unless bbox and bbox.count(',') == 3 - 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 - - # 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") - return - end - - # get all the nodes - nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => "visible = 1") - - node_ids = nodes.collect {|node| node.id } - - if node_ids.length > 50_000 - report_error("You requested too many nodes (limit is 50,000). Either request a smaller area, or use planet.osm") - return - end - - if node_ids.length == 0 - render :text => "", :content_type => "text/xml" - return - end - - relations = Array.new - - doc = OSM::API.new.get_xml_doc - - # get ways - # find which ways are needed - 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 } - ways = Way.find(way_ids) - - list_of_way_nodes = ways.collect { |way| - way.way_nodes.collect { |way_node| way_node.node_id } - } - list_of_way_nodes.flatten! - - else - list_of_way_nodes = Array.new - end - - # - [0] in case some thing links to node 0 which doesn't exist. Shouldn't actually ever happen but it does. FIXME: file a ticket for this - nodes_to_fetch = (list_of_way_nodes.uniq - node_ids) - [0] - - if nodes_to_fetch.length > 0 - nodes += Node.find(nodes_to_fetch) - end - - visible_nodes = {} - user_display_name_cache = {} - - nodes.each do |node| - if node.visible? - doc.root << node.to_xml_node(user_display_name_cache) - visible_nodes[node.id] = node - end - end - - way_ids = Array.new - ways.each do |way| - if way.visible? - doc.root << way.to_xml_node(visible_nodes, user_display_name_cache) - way_ids << way.id - end - end - - # 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 = 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 - # an exception for cases where an relation references another *relation*; - # in that case we return that as well (but we don't go recursive here) - relation_ids = relations.collect { |relation| relation.id } - if relation_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='relation' and em.member_id in (#{relation_ids.join(',')})") - end - - # 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(user_display_name_cache) - end - - render :text => doc.to_s, :content_type => "text/xml" - - #exit when we have too many requests - if @@count > MAX_COUNT - @@count = COUNT - - exit! - 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 - - api = XML::Node.new 'api' - version = XML::Node.new 'version' - version['minimum'] = '0.5'; - version['maximum'] = '0.5'; - api << version - area = XML::Node.new 'area' - area['maximum'] = MAX_REQUEST_AREA.to_s; - api << area - - doc.root << api - - render :text => doc.to_s, :content_type => "text/xml" - end + skip_before_action :verify_authenticity_token end