742291a840
Now that we have all api controllers inheriting from a common base, it's easier to override the deny_access handler without having to switch between both. Fixes #2064
54 lines
1.6 KiB
Ruby
54 lines
1.6 KiB
Ruby
module Api
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class ChangesController < ApiController
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authorize_resource :class => false
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before_action :check_api_readable
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around_action :api_call_handle_error, :api_call_timeout
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# Get a list of the tiles that have changed within a specified time
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# period
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def index
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zoom = (params[:zoom] || "12").to_i
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if params.include?(:start) && params.include?(:end)
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starttime = Time.parse(params[:start])
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endtime = Time.parse(params[:end])
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else
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hours = (params[:hours] || "1").to_i.hours
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endtime = Time.now.getutc
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starttime = endtime - hours
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end
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if zoom >= 1 && zoom <= 16 &&
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endtime > starttime && endtime - starttime <= 24.hours
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mask = (1 << zoom) - 1
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tiles = Node.where(:timestamp => starttime..endtime).group("maptile_for_point(latitude, longitude, #{zoom})").count
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doc = OSM::API.new.get_xml_doc
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changes = XML::Node.new "changes"
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changes["starttime"] = starttime.xmlschema
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changes["endtime"] = endtime.xmlschema
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tiles.each do |tile, count|
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x = (tile.to_i >> zoom) & mask
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y = tile.to_i & mask
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t = XML::Node.new "tile"
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t["x"] = x.to_s
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t["y"] = y.to_s
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t["z"] = zoom.to_s
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t["changes"] = count.to_s
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changes << t
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end
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doc.root << changes
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render :xml => doc.to_s
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else
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render :plain => "Requested zoom is invalid, or the supplied start is after the end time, or the start duration is more than 24 hours", :status => :bad_request
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end
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end
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end
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end
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