982 lines
34 KiB
Ruby
982 lines
34 KiB
Ruby
class AmfController < ApplicationController
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require 'stringio'
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session :off
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before_filter :check_write_availability
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# to log:
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# RAILS_DEFAULT_LOGGER.error("Args: #{args[0]}, #{args[1]}, #{args[2]}, #{args[3]}")
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# ====================================================================
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# Main AMF handler
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# ---- talk process AMF request
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def talk
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req=StringIO.new(request.raw_post) # Get POST data as request
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req.read(2) # Skip version indicator and client ID
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results={} # Results of each body
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# -------------
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# Parse request
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headers=getint(req) # Read number of headers
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headers.times do # Read each header
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name=getstring(req) # |
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req.getc # | skip boolean
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value=getvalue(req) # |
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header["name"]=value # |
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end
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bodies=getint(req) # Read number of bodies
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bodies.times do # Read each body
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message=getstring(req) # | get message name
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index=getstring(req) # | get index in response sequence
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bytes=getlong(req) # | get total size in bytes
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args=getvalue(req) # | get response (probably an array)
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case message
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when 'getpresets'; results[index]=putdata(index,getpresets)
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when 'whichways'; results[index]=putdata(index,whichways(args))
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when 'getway'; results[index]=putdata(index,getway(args))
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when 'putway'; results[index]=putdata(index,putway(args))
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when 'deleteway'; results[index]=putdata(index,deleteway(args))
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when 'makeway'; results[index]=putdata(index,makeway(args))
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when 'putpoi'; results[index]=putdata(index,putpoi(args))
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when 'getpoi'; results[index]=putdata(index,getpoi(args))
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end
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end
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# ------------------
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# Write out response
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RAILS_DEFAULT_LOGGER.info(" Response: start")
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a,b=results.length.divmod(256)
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render :content_type => "application/x-amf", :text => proc { |response, output|
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output.write 0.chr+0.chr+0.chr+0.chr+a.chr+b.chr
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results.each do |k,v|
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output.write(v)
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end
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}
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RAILS_DEFAULT_LOGGER.info(" Response: end")
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end
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private
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# ====================================================================
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# Remote calls
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# ----- getpresets
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# return presets,presetmenus and presetnames arrays
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def getpresets
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presets={}
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presetmenus={}; presetmenus['point']=[]; presetmenus['way']=[]; presetmenus['POI']=[]
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presetnames={}; presetnames['point']={}; presetnames['way']={}; presetnames['POI']={}
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presettype=''
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presetcategory=''
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RAILS_DEFAULT_LOGGER.info(" Message: getpresets")
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# File.open("config/potlatch/presets.txt") do |file|
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# Temporary patch to get around filepath problem
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# To remove this patch and make the code nice again:
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# 1. uncomment above line
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# 2. fix the path in the above line
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# 3. delete this here document, and the following line (StringIO....)
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txt=<<-EOF
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way/road
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motorway: highway=motorway,ref=(type road number)
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trunk road: highway=trunk,ref=(type road number),name=(type road name)
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primary road: highway=primary,ref=(type road number),name=(type road name)
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secondary road: highway=secondary,ref=(type road number),name=(type road name)
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residential road: highway=residential,name=(type road name)
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unclassified road: highway=unclassified,name=(type road name)
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way/footway
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footpath: highway=footway,foot=yes
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bridleway: highway=bridleway,foot=yes
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byway: highway=unsurfaced,foot=yes
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permissive path: highway=footway,foot=permissive
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way/cycleway
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cycle lane: highway=cycleway,cycleway=lane,ncn_ref=
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cycle track: highway=cycleway,cycleway=track,ncn_ref=
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cycle lane (NCN): highway=cycleway,cycleway=lane,name=(type name here),ncn_ref=(type route number)
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cycle track (NCN): highway=cycleway,cycleway=track,name=(type name here),ncn_ref=(type route number)
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way/waterway
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canal: waterway=canal,name=(type name here)
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navigable river: waterway=river,boat=yes,name=(type name here)
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navigable drain: waterway=drain,boat=yes,name=(type name here)
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derelict canal: waterway=derelict_canal,name=(type name here)
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unnavigable river: waterway=river,boat=no,name=(type name here)
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unnavigable drain: waterway=drain,boat=no,name=(type name here)
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way/railway
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railway: railway=rail
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tramway: railway=tram
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light railway: railway=light_rail
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preserved railway: railway=preserved
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disused railway tracks: railway=disused
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course of old railway: railway=abandoned
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way/natural
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lake: landuse=water
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forest: landuse=forest
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point/road
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mini roundabout: highway=mini_roundabout
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traffic lights: highway=traffic_signals
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point/footway
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bridge: highway=bridge
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gate: highway=gate
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stile: highway=stile
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cattle grid: highway=cattle_grid
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point/cycleway
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gate: highway=gate
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point/waterway
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lock gate: waterway=lock_gate
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weir: waterway=weir
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aqueduct: waterway=aqueduct
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winding hole: waterway=turning_point
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mooring: waterway=mooring
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point/railway
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station: railway=station
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viaduct: railway=viaduct
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level crossing: railway=crossing
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point/natural
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peak: point=peak
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POI/road
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car park: amenity=parking
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petrol station: amenity=fuel
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POI/cycleway
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bike park: amenity=bicycle_parking
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POI/place
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city: place=city,name=(type name here),is_in=(type region or county)
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town: place=town,name=(type name here),is_in=(type region or county)
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suburb: place=suburb,name=(type name here),is_in=(type region or county)
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village: place=village,name=(type name here),is_in=(type region or county)
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hamlet: place=hamlet,name=(type name here),is_in=(type region or county)
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POI/tourism
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attraction: tourism=attraction,amenity=,religion=,denomination=
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church: tourism=,amenity=place_of_worship,name=(type name here),religion=christian,denomination=(type denomination here)
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hotel: tourism=hotel,amenity=,religion=,denomination=
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other religious: tourism=,amenity=place_of_worship,name=(type name here),religion=(type religion),denomination=
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post box: amenity=post_box,tourism=,name=,religion=,denomination=
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post office: amenity=post_office,tourism=,name=,religion=,denomination=
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pub: tourism=,amenity=pub,name=(type name here),religion=,denomination=
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POI/natural
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peak: point=peak
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EOF
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StringIO.open(txt) do |file|
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file.each_line {|line|
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t=line.chomp
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if (t=~/(\w+)\/(\w+)/) then
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presettype=$1
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presetcategory=$2
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presetmenus[presettype].push(presetcategory)
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presetnames[presettype][presetcategory]=["(no preset)"]
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elsif (t=~/^(.+):\s?(.+)$/) then
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pre=$1; kv=$2
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presetnames[presettype][presetcategory].push(pre)
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presets[pre]={}
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kv.split(',').each {|a|
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if (a=~/^(.+)=(.*)$/) then presets[pre][$1]=$2 end
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}
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end
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}
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end
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return [presets,presetmenus,presetnames]
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end
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# ----- whichways(left,bottom,right,top)
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# return array of ways in current bounding box
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# at present, instead of using correct (=more complex) SQL to find
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# corner-crossing ways, it simply enlarges the bounding box by +/- 0.01
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def whichways(args)
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xmin = args[0].to_f-0.01
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ymin = args[1].to_f-0.01
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xmax = args[2].to_f+0.01
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ymax = args[3].to_f+0.01
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baselong = args[4]
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basey = args[5]
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masterscale = args[6]
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RAILS_DEFAULT_LOGGER.info(" Message: whichways, bbox=#{xmin},#{ymin},#{xmax},#{ymax}")
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waylist = WaySegment.find_by_sql("SELECT DISTINCT current_way_segments.id AS wayid"+
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" FROM current_way_segments,current_segments,current_nodes,current_ways "+
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" WHERE segment_id=current_segments.id "+
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" AND current_segments.visible=1 "+
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" AND node_a=current_nodes.id "+
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" AND current_ways.id=current_way_segments.id "+
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" AND current_ways.visible=1 "+
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" AND "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes."))
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ways = waylist.collect {|a| a.wayid.to_i } # get an array of way id's
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pointlist = ActiveRecord::Base.connection.select_all("SELECT current_nodes.id,current_nodes.latitude*0.0000001 AS lat,current_nodes.longitude*0.0000001 AS lng,current_nodes.tags "+
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" FROM current_nodes "+
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" LEFT OUTER JOIN current_segments cs1 ON cs1.node_a=current_nodes.id "+
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" LEFT OUTER JOIN current_segments cs2 ON cs2.node_b=current_nodes.id "+
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" WHERE "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")+
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" AND cs1.id IS NULL AND cs2.id IS NULL "+
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" AND current_nodes.visible=1")
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points = pointlist.collect {|a| [a['id'],long2coord(a['lng'].to_f,baselong,masterscale),lat2coord(a['lat'].to_f,basey,masterscale),tag2array(a['tags'])] } # get a list of node ids and their tags
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return [ways,points]
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end
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# ----- getway (objectname, way, baselong, basey, masterscale)
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# returns objectname, array of co-ordinates, attributes,
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# xmin,xmax,ymin,ymax
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def getway(args)
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objname,wayid,baselong,basey,masterscale=args
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wayid = wayid.to_i
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points = []
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lastid = -1
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xmin = ymin = 999999
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xmax = ymax = -999999
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RAILS_DEFAULT_LOGGER.info(" Message: getway, id=#{wayid}")
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readwayquery(wayid).each {|row|
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xs1=long2coord(row['long1'].to_f,baselong,masterscale); ys1=lat2coord(row['lat1'].to_f,basey,masterscale)
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xs2=long2coord(row['long2'].to_f,baselong,masterscale); ys2=lat2coord(row['lat2'].to_f,basey,masterscale)
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points << [xs1,ys1,row['id1'].to_i,0,tag2array(row['tags1']),0] if (row['id1'].to_i!=lastid)
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lastid = row['id2'].to_i
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points << [xs2,ys2,row['id2'].to_i,1,tag2array(row['tags2']),row['segment_id'].to_i]
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xmin = [xmin,row['long1'].to_f,row['long2'].to_f].min
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xmax = [xmax,row['long1'].to_f,row['long2'].to_f].max
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ymin = [ymin,row['lat1'].to_f,row['lat2'].to_f].min
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ymax = [ymax,row['lat1'].to_f,row['lat2'].to_f].max
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}
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attributes={}
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attrlist=ActiveRecord::Base.connection.select_all "SELECT k,v FROM current_way_tags WHERE id=#{wayid}"
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attrlist.each {|a| attributes[a['k']]=a['v'] }
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[objname,points,attributes,xmin,xmax,ymin,ymax]
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end
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# ----- putway (user token, way, array of co-ordinates, array of attributes,
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# baselong, basey, masterscale)
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# returns current way ID, new way ID, hash of renumbered nodes,
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# xmin,xmax,ymin,ymax
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def putway(args)
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usertoken,originalway,points,attributes,baselong,basey,masterscale=args
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uid=getuserid(usertoken)
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return if !uid
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db_uqs='uniq'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquesegments table name, typically 51 chars
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db_uqn='unin'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
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db_now='@now'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
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ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
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originalway=originalway.to_i
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RAILS_DEFAULT_LOGGER.info(" Message: putway, id=#{originalway}")
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# -- 3. read original way into memory
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xc={}; yc={}; tagc={}; seg={}
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if originalway>0
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way=originalway
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readwayquery(way).each { |row|
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id1=row['id1'].to_i; xc[id1]=row['long1'].to_f; yc[id1]=row['lat1'].to_f; tagc[id1]=row['tags1']
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id2=row['id2'].to_i; xc[id2]=row['long2'].to_f; yc[id2]=row['lat2'].to_f; tagc[id2]=row['tags2']
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seg[row['segment_id'].to_i]=id1.to_s+'-'+id2.to_s
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}
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ActiveRecord::Base.connection.update("UPDATE current_ways SET timestamp=#{db_now},user_id=#{uid},visible=1 WHERE id=#{way}")
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else
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way=ActiveRecord::Base.connection.insert("INSERT INTO current_ways (user_id,timestamp,visible) VALUES (#{uid},#{db_now},1)")
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end
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# -- 4. get version by inserting new row into ways
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version=ActiveRecord::Base.connection.insert("INSERT INTO ways (id,user_id,timestamp,visible) VALUES (#{way},#{uid},#{db_now},1)")
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# -- 5. compare nodes and update xmin,xmax,ymin,ymax
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xmin = ymin = 999999
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xmax = ymax = -999999
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insertsql = ''
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renumberednodes={}
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points.each_index do |i|
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xs=coord2long(points[i][0],masterscale,baselong)
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ys=coord2lat(points[i][1],masterscale,basey)
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xmin=[xs,xmin].min; xmax=[xs,xmax].max
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ymin=[ys,ymin].min; ymax=[ys,ymax].max
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node=points[i][2].to_i
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tagstr=array2tag(points[i][4])
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tagstr=tagstr.gsub(/[\000-\037]/,"")
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tagsql="'"+sqlescape(tagstr)+"'"
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lat=(ys * 10000000).round
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long=(xs * 10000000).round
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tile=QuadTile.tile_for_point(ys, xs)
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# compare node
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if node<0
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# new node - create
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if renumberednodes[node.to_s].nil?
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newnode=ActiveRecord::Base.connection.insert("INSERT INTO current_nodes ( latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES ( #{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
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ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{newnode},#{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
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points[i][2]=newnode
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renumberednodes[node.to_s]=newnode.to_s
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else
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points[i][2]=renumberednodes[node.to_s].to_i
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end
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elsif xc.has_key?(node)
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# old node from original way - update
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if (xs!=xc[node] or ys!=yc[node] or tagstr!=tagc[node])
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ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{node},#{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
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ActiveRecord::Base.connection.update("UPDATE current_nodes SET latitude=#{lat},longitude=#{long},timestamp=#{db_now},user_id=#{uid},tags=#{tagsql},visible=1,tile=#{tile} WHERE id=#{node}")
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end
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else
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# old node, created in another way and now added to this way
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end
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end
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# -- 6.i compare segments
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numberedsegments={}
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seglist='' # list of existing segments that we want to keep
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for i in (0..(points.length-2))
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if (points[i+1][3].to_i==0) then next end
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segid=points[i+1][5].to_i
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from =points[i ][2].to_i
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to =points[i+1][2].to_i
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if seg.has_key?(segid)
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# if segment exists, check it still refers to the same nodes
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if seg[segid]=="#{from}-#{to}" then
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if (seglist!='') then seglist+=',' end; seglist+=segid.to_s
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next
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end
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elsif segid>0
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# not in previous version of way, but supplied, so assume
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# that it's come from makeway (i.e. unwayed segments)
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if (seglist!='') then seglist+=',' end; seglist+=segid.to_s
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next
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end
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segid=ActiveRecord::Base.connection.insert("INSERT INTO current_segments ( node_a,node_b,timestamp,user_id,visible,tags) VALUES ( #{from},#{to},#{db_now},#{uid},1,'')")
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ActiveRecord::Base.connection.insert("INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible,tags) VALUES (#{segid},#{from},#{to},#{db_now},#{uid},1,'')")
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points[i+1][5]=segid
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numberedsegments[(i+1).to_s]=segid.to_s
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end
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# -- 6.ii insert new way segments
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createuniquesegments(way,db_uqs,seglist) # segments which appear in this way but no other
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# delete segments from uniquesegments (and not in modified way)
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sql=<<-EOF
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INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible)
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SELECT DISTINCT segment_id,node_a,node_b,#{db_now},#{uid},0
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FROM current_segments AS cs, #{db_uqs} AS us
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WHERE cs.id=us.segment_id AND cs.visible=1
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EOF
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ActiveRecord::Base.connection.insert(sql)
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sql=<<-EOF
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UPDATE current_segments AS cs, #{db_uqs} AS us
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SET cs.timestamp=#{db_now},cs.visible=0,cs.user_id=#{uid}
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WHERE cs.id=us.segment_id AND cs.visible=1
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EOF
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ActiveRecord::Base.connection.update(sql)
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# delete nodes not in modified way or any other segments
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createuniquenodes(db_uqs,db_uqn) # nodes which appear in this way but no other
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sql=<<-EOF
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INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
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SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0,cn.tile
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FROM current_nodes AS cn,#{db_uqn}
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WHERE cn.id=node_id
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EOF
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ActiveRecord::Base.connection.insert(sql)
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sql=<<-EOF
|
|
UPDATE current_nodes AS cn, #{db_uqn}
|
|
SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
|
|
WHERE cn.id=node_id
|
|
EOF
|
|
ActiveRecord::Base.connection.update(sql)
|
|
|
|
ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
|
|
ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqn}")
|
|
|
|
# insert new version of route into way_segments
|
|
|
|
insertsql =''
|
|
currentsql=''
|
|
sequence =1
|
|
for i in (0..(points.length-2))
|
|
if (points[i+1][3].to_i==0) then next end
|
|
if insertsql !='' then insertsql +=',' end
|
|
if currentsql!='' then currentsql+=',' end
|
|
insertsql +="(#{way},#{points[i+1][5]},#{version})"
|
|
currentsql+="(#{way},#{points[i+1][5]},#{sequence})"
|
|
sequence +=1
|
|
end
|
|
|
|
ActiveRecord::Base.connection.execute("DELETE FROM current_way_segments WHERE id=#{way}");
|
|
ActiveRecord::Base.connection.insert("INSERT INTO way_segments (id,segment_id,version ) VALUES #{insertsql}");
|
|
ActiveRecord::Base.connection.insert("INSERT INTO current_way_segments (id,segment_id,sequence_id) VALUES #{currentsql}");
|
|
|
|
# -- 7. insert new way tags
|
|
|
|
insertsql =''
|
|
currentsql=''
|
|
attributes.each do |k,v|
|
|
if v=='' or v.nil? then next end
|
|
if v[0,6]=='(type ' then next end
|
|
if insertsql !='' then insertsql +=',' end
|
|
if currentsql!='' then currentsql+=',' end
|
|
k=k.gsub(/[\000-\037]/,"")
|
|
v=v.gsub(/[\000-\037]/,"")
|
|
insertsql +="(#{way},'"+sqlescape(k)+"','"+sqlescape(v)+"',#{version})"
|
|
currentsql+="(#{way},'"+sqlescape(k)+"','"+sqlescape(v)+"')"
|
|
end
|
|
|
|
ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
|
|
if (insertsql !='') then ActiveRecord::Base.connection.insert("INSERT INTO way_tags (id,k,v,version) VALUES #{insertsql}" ) end
|
|
if (currentsql!='') then ActiveRecord::Base.connection.insert("INSERT INTO current_way_tags (id,k,v) VALUES #{currentsql}") end
|
|
|
|
[originalway,way,renumberednodes,numberedsegments,xmin,xmax,ymin,ymax]
|
|
end
|
|
|
|
# ----- putpoi (user token, id, x,y,tag array,visible,baselong,basey,masterscale)
|
|
# returns current id, new id
|
|
# if new: add new row to current_nodes and nodes
|
|
# if old: add new row to nodes, update current_nodes
|
|
|
|
def putpoi(args)
|
|
usertoken,id,x,y,tags,visible,baselong,basey,masterscale=args
|
|
uid=getuserid(usertoken)
|
|
return if !uid
|
|
db_now='@now'+uid.to_s+id.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
|
|
ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
|
|
|
|
id=id.to_i
|
|
visible=visible.to_i
|
|
x=coord2long(x.to_f,masterscale,baselong)
|
|
y=coord2lat(y.to_f,masterscale,basey)
|
|
tagsql="'"+sqlescape(array2tag(tags))+"'"
|
|
lat=(y * 10000000).round
|
|
long=(x * 10000000).round
|
|
tile=QuadTile.tile_for_point(y, x)
|
|
|
|
if (id>0) then
|
|
ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{id},#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
|
|
ActiveRecord::Base.connection.update("UPDATE current_nodes SET latitude=#{lat},longitude=#{long},timestamp=#{db_now},user_id=#{uid},visible=#{visible},tags=#{tagsql},tile=#{tile} WHERE id=#{id}");
|
|
newid=id
|
|
else
|
|
newid=ActiveRecord::Base.connection.insert("INSERT INTO current_nodes (latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
|
|
ActiveRecord::Base.connection.update("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{newid},#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
|
|
end
|
|
[id,newid]
|
|
end
|
|
|
|
# ----- getpoi (id,baselong,basey,masterscale)
|
|
# returns id,x,y,tag array
|
|
|
|
def getpoi(args)
|
|
id,baselong,basey,masterscale=args; id=id.to_i
|
|
poi=ActiveRecord::Base.connection.select_one("SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lng,tags "+
|
|
"FROM current_nodes WHERE visible=1 AND id=#{id}")
|
|
if poi.nil? then return [nil,nil,nil,''] end
|
|
[id,
|
|
long2coord(poi['lng'].to_f,baselong,masterscale),
|
|
lat2coord(poi['lat'].to_f,basey,masterscale),
|
|
tag2array(poi['tags'])]
|
|
end
|
|
|
|
# ----- deleteway (user token, way)
|
|
# returns way ID only
|
|
|
|
def deleteway(args)
|
|
usertoken,way=args
|
|
|
|
RAILS_DEFAULT_LOGGER.info(" Message: deleteway, id=#{way}")
|
|
|
|
uid=getuserid(usertoken); if !uid then return end
|
|
way=way.to_i
|
|
|
|
db_uqs='uniq'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquesegments table name, typically 51 chars
|
|
db_uqn='unin'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
|
|
db_now='@now'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
|
|
ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
|
|
createuniquesegments(way,db_uqs,'')
|
|
|
|
# - delete any otherwise unused segments
|
|
|
|
sql=<<-EOF
|
|
INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible)
|
|
SELECT DISTINCT segment_id,node_a,node_b,#{db_now},#{uid},0
|
|
FROM current_segments AS cs, #{db_uqs} AS us
|
|
WHERE cs.id=us.segment_id
|
|
EOF
|
|
ActiveRecord::Base.connection.insert(sql)
|
|
|
|
sql=<<-EOF
|
|
UPDATE current_segments AS cs, #{db_uqs} AS us
|
|
SET cs.timestamp=#{db_now},cs.visible=0,cs.user_id=#{uid}
|
|
WHERE cs.id=us.segment_id
|
|
EOF
|
|
ActiveRecord::Base.connection.update(sql)
|
|
|
|
# - delete any unused nodes
|
|
|
|
createuniquenodes(db_uqs,db_uqn)
|
|
|
|
sql=<<-EOF
|
|
INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
|
|
SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0,cn.tile
|
|
FROM current_nodes AS cn,#{db_uqn}
|
|
WHERE cn.id=node_id
|
|
EOF
|
|
ActiveRecord::Base.connection.insert(sql)
|
|
|
|
sql=<<-EOF
|
|
UPDATE current_nodes AS cn, #{db_uqn}
|
|
SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
|
|
WHERE cn.id=node_id
|
|
EOF
|
|
ActiveRecord::Base.connection.update(sql)
|
|
|
|
ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
|
|
ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqn}")
|
|
|
|
# - delete way
|
|
|
|
ActiveRecord::Base.connection.insert("INSERT INTO ways (id,user_id,timestamp,visible) VALUES (#{way},#{uid},#{db_now},0)")
|
|
ActiveRecord::Base.connection.update("UPDATE current_ways SET user_id=#{uid},timestamp=#{db_now},visible=0 WHERE id=#{way}")
|
|
ActiveRecord::Base.connection.execute("DELETE FROM current_way_segments WHERE id=#{way}")
|
|
ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
|
|
|
|
way
|
|
end
|
|
|
|
# ----- makeway(x,y,baselong,basey,masterscale)
|
|
# returns way made from unwayed segments
|
|
|
|
def makeway(args)
|
|
usertoken,x,y,baselong,basey,masterscale=args
|
|
uid=getuserid(usertoken)
|
|
return if !uid
|
|
|
|
points=[]
|
|
toreverse=[] # segments to reverse
|
|
nodesused={} # so we don't go over the same node twice
|
|
|
|
# - find start point near x
|
|
|
|
xc=coord2long(x,masterscale,baselong)
|
|
yc=coord2lat(y,masterscale,basey)
|
|
|
|
RAILS_DEFAULT_LOGGER.info(" Message: makeway, xc=#{xc}, y=#{yc}")
|
|
|
|
xs1=xc-0.001; xs2=xc+0.001
|
|
ys1=yc-0.001; ys2=yc+0.001
|
|
|
|
sql=<<-EOF
|
|
SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
|
|
cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
|
|
FROM current_nodes AS cn1,
|
|
current_nodes AS cn2,
|
|
current_segments AS cs
|
|
LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
|
|
WHERE #{OSM.sql_for_area(ys1,xs1,ys2,xs2,"cn1.")}
|
|
AND segment_id IS NULL
|
|
AND cs.visible=1
|
|
AND cn1.id=node_a AND cn1.visible=1
|
|
AND cn2.id=node_b AND cn2.visible=1
|
|
ORDER BY SQRT(POW(cn1.longitude-#{xc},2)+
|
|
POW(cn1.latitude -#{yc},2))
|
|
LIMIT 1
|
|
EOF
|
|
row=ActiveRecord::Base.connection.select_one sql
|
|
if row.nil? then return [0,0,0,0,0] end
|
|
xs1=long2coord(row['lon1'].to_f,baselong,masterscale); ys1=lat2coord(row['lat1'].to_f,basey,masterscale)
|
|
xs2=long2coord(row['lon2'].to_f,baselong,masterscale); ys2=lat2coord(row['lat2'].to_f,basey,masterscale)
|
|
xmin=[xs1,xs2].min; xmax=[xs1,xs2].max
|
|
ymin=[ys1,ys2].min; ymax=[ys1,ys2].max
|
|
nodesused[row['id1'].to_i]=true
|
|
nodesused[row['id2'].to_i]=true
|
|
points<<[xs1,ys1,row['id1'].to_i,1,{},0]
|
|
points<<[xs2,ys2,row['id2'].to_i,1,{},row['segid'].to_i]
|
|
|
|
# - extend at start, then end
|
|
while (a,point,nodesused,toreverse=findconnect(points[0][2],nodesused,'b',toreverse,baselong,basey,masterscale))[0]
|
|
points[0][5]=point[5]; point[5]=0 # segment leads to next node
|
|
points.unshift(point)
|
|
xmin=[point[0],xmin].min; xmax=[point[0],xmax].max
|
|
ymin=[point[1],ymin].min; ymax=[point[1],ymax].max
|
|
end
|
|
while (a,point,nodesused,toreverse=findconnect(points[-1][2],nodesused,'a',toreverse,baselong,basey,masterscale))[0]
|
|
points.push(point)
|
|
xmin=[point[0],xmin].min; xmax=[point[0],xmax].max
|
|
ymin=[point[1],ymin].min; ymax=[point[1],ymax].max
|
|
end
|
|
points[0][3]=0 # start with a move
|
|
|
|
# reverse segments in toreverse
|
|
if toreverse.length>0
|
|
sql=<<-EOF
|
|
UPDATE current_segments c1, current_segments c2
|
|
SET c1.node_a=c2.node_b,c1.node_b=c2.node_a,
|
|
c1.timestamp=NOW(),c1.user_id=#{uid}
|
|
WHERE c1.id=c2.id
|
|
AND c1.id IN (#{toreverse.join(',')})
|
|
EOF
|
|
ActiveRecord::Base.connection.update sql
|
|
sql=<<-EOF
|
|
INSERT INTO segments
|
|
(SELECT * FROM current_segments
|
|
WHERE id IN (#{toreverse.join(',')}))
|
|
EOF
|
|
ActiveRecord::Base.connection.insert sql
|
|
end
|
|
|
|
[points,xmin,xmax,ymin,ymax]
|
|
end
|
|
|
|
def findconnect(id,nodesused,lookfor,toreverse,baselong,basey,masterscale)
|
|
# get all segments with 'id' as a point
|
|
# (to look for both node_a and node_b, UNION is faster than node_a=id OR node_b=id)!
|
|
sql=<<-EOF
|
|
SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
|
|
cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
|
|
FROM current_nodes AS cn1,
|
|
current_nodes AS cn2,
|
|
current_segments AS cs
|
|
LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
|
|
WHERE segment_id IS NULL
|
|
AND cs.visible=1
|
|
AND cn1.id=node_a AND cn1.visible=1
|
|
AND cn2.id=node_b AND cn2.visible=1
|
|
AND node_a=#{id}
|
|
UNION
|
|
SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
|
|
cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
|
|
FROM current_nodes AS cn1,
|
|
current_nodes AS cn2,
|
|
current_segments AS cs
|
|
LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
|
|
WHERE segment_id IS NULL
|
|
AND cs.visible=1
|
|
AND cn1.id=node_a AND cn1.visible=1
|
|
AND cn2.id=node_b AND cn2.visible=1
|
|
AND node_b=#{id}
|
|
EOF
|
|
connectlist=ActiveRecord::Base.connection.select_all sql
|
|
|
|
if lookfor=='b' then tocol='id1'; tolat='lat1'; tolon='lon1'; fromcol='id2'; fromlat='lat2'; fromlon='lon2'
|
|
else tocol='id2'; tolat='lat2'; tolon='lon2'; fromcol='id1'; fromlat='lat1'; fromlon='lon1'
|
|
end
|
|
|
|
# eliminate those already in the hash
|
|
connex=0
|
|
point=nil
|
|
connectlist.each { |row|
|
|
tonode=row[tocol].to_i
|
|
fromnode=row[fromcol].to_i
|
|
if id==tonode and !nodesused.has_key?(fromnode)
|
|
# wrong way round; add, then add to 'segments to reverse' list
|
|
connex+=1
|
|
nodesused[fromnode]=true
|
|
point=[long2coord(row[fromlon].to_f,baselong,masterscale),lat2coord(row[fromlat].to_f,basey,masterscale),fromnode,1,{},row['segid'].to_i]
|
|
toreverse.push(row['segid'].to_i)
|
|
elsif id==fromnode and !nodesused.has_key?(tonode)
|
|
# right way round; just add
|
|
connex+=1
|
|
point=[long2coord(row[tolon].to_f,baselong,masterscale),lat2coord(row[tolat].to_f,basey,masterscale),tonode,1,{},row['segid'].to_i]
|
|
nodesused[tonode]=true
|
|
end
|
|
}
|
|
|
|
# if only one left, then add it; otherwise return false
|
|
if connex!=1 or point.nil? then
|
|
return [false,[],nodesused,toreverse]
|
|
else
|
|
return [true,point,nodesused,toreverse]
|
|
end
|
|
end
|
|
|
|
|
|
# ====================================================================
|
|
# Support functions for remote calls
|
|
|
|
def readwayquery(id)
|
|
ActiveRecord::Base.connection.select_all "SELECT n1.latitude*0.0000001 AS lat1,n1.longitude*0.0000001 AS long1,n1.id AS id1,n1.tags as tags1, "+
|
|
" n2.latitude*0.0000001 AS lat2,n2.longitude*0.0000001 AS long2,n2.id AS id2,n2.tags as tags2,segment_id "+
|
|
" FROM current_way_segments,current_segments,current_nodes AS n1,current_nodes AS n2 "+
|
|
" WHERE current_way_segments.id=#{id} "+
|
|
" AND segment_id=current_segments.id "+
|
|
" AND current_segments.visible=1 "+
|
|
" AND n1.id=node_a AND n2.id=node_b "+
|
|
" AND n1.visible=1 AND n2.visible=1 "+
|
|
" ORDER BY sequence_id"
|
|
end
|
|
|
|
def createuniquesegments(way,uqs_name,seglist)
|
|
# Finds segments which appear in (previous version of) this way and no other
|
|
sql=<<-EOF
|
|
CREATE TEMPORARY TABLE #{uqs_name}
|
|
SELECT a.segment_id
|
|
FROM (SELECT DISTINCT segment_id FROM current_way_segments
|
|
WHERE id = #{way}) a
|
|
LEFT JOIN current_way_segments b
|
|
ON b.segment_id = a.segment_id
|
|
AND b.id != #{way}
|
|
WHERE b.segment_id IS NULL
|
|
EOF
|
|
if (seglist!='') then sql+=" AND a.segment_id NOT IN (#{seglist})" end
|
|
ActiveRecord::Base.connection.execute(sql)
|
|
end
|
|
|
|
def createuniquenodes(uqs_name,uqn_name)
|
|
# Finds nodes which appear in uniquesegments but no other segments
|
|
sql=<<-EOF
|
|
CREATE TEMPORARY TABLE #{uqn_name}
|
|
SELECT DISTINCT node_id
|
|
FROM (SELECT cn.id AS node_id
|
|
FROM current_nodes AS cn,
|
|
current_segments AS cs,
|
|
#{uqs_name} AS us
|
|
WHERE cs.id=us.segment_id
|
|
AND cn.id=cs.node_a) AS n
|
|
LEFT JOIN current_segments AS cs2 ON node_id=cs2.node_a AND cs2.visible=1
|
|
LEFT JOIN current_segments AS cs3 ON node_id=cs3.node_b AND cs3.visible=1
|
|
WHERE cs2.node_a IS NULL
|
|
AND cs3.node_b IS NULL
|
|
EOF
|
|
ActiveRecord::Base.connection.execute(sql)
|
|
sql=<<-EOF
|
|
INSERT INTO #{uqn_name}
|
|
SELECT DISTINCT node_id
|
|
FROM (SELECT cn.id AS node_id
|
|
FROM current_nodes AS cn,
|
|
current_segments AS cs,
|
|
#{uqs_name} AS us
|
|
WHERE cs.id=us.segment_id
|
|
AND cn.id=cs.node_b) AS n
|
|
LEFT JOIN current_segments AS cs2 ON node_id=cs2.node_a AND cs2.visible=1
|
|
LEFT JOIN current_segments AS cs3 ON node_id=cs3.node_b AND cs3.visible=1
|
|
WHERE cs2.node_a IS NULL
|
|
AND cs3.node_b IS NULL
|
|
EOF
|
|
ActiveRecord::Base.connection.execute(sql)
|
|
end
|
|
|
|
def sqlescape(a)
|
|
a.gsub("'","''").gsub(92.chr,92.chr+92.chr)
|
|
end
|
|
|
|
def tag2array(a)
|
|
tags={}
|
|
a.gsub(';;;','#%').split(';').each do |b|
|
|
b.gsub!('#%',';;;')
|
|
b.gsub!('===','#%')
|
|
k,v=b.split('=')
|
|
if k.nil? then k='' end
|
|
if v.nil? then v='' end
|
|
tags[k.gsub('#%','=')]=v.gsub('#%','=')
|
|
end
|
|
tags
|
|
end
|
|
|
|
def array2tag(a)
|
|
str=''
|
|
a.each do |k,v|
|
|
if v=='' then next end
|
|
if v[0,6]=='(type ' then next end
|
|
if str!='' then str+=';' end
|
|
str+=k.gsub(';',';;;').gsub('=','===')+'='+v.gsub(';',';;;').gsub('=','===')
|
|
end
|
|
str
|
|
end
|
|
|
|
def getuserid(token)
|
|
if (token =~ /^(.+)\+(.+)$/) then
|
|
user = User.authenticate(:username => $1, :password => $2)
|
|
else
|
|
user = User.authenticate(:token => token)
|
|
end
|
|
|
|
return user ? user.id : nil;
|
|
end
|
|
|
|
|
|
|
|
# ====================================================================
|
|
# AMF read subroutines
|
|
|
|
# ----- getint return two-byte integer
|
|
# ----- getlong return four-byte long
|
|
# ----- getstring return string with two-byte length
|
|
# ----- getdouble return eight-byte double-precision float
|
|
# ----- getobject return object/hash
|
|
# ----- getarray return numeric array
|
|
|
|
def getint(s)
|
|
s.getc*256+s.getc
|
|
end
|
|
|
|
def getlong(s)
|
|
((s.getc*256+s.getc)*256+s.getc)*256+s.getc
|
|
end
|
|
|
|
def getstring(s)
|
|
len=s.getc*256+s.getc
|
|
s.read(len)
|
|
end
|
|
|
|
def getdouble(s)
|
|
a=s.read(8).unpack('G') # G big-endian, E little-endian
|
|
a[0]
|
|
end
|
|
|
|
def getarray(s)
|
|
len=getlong(s)
|
|
arr=[]
|
|
for i in (0..len-1)
|
|
arr[i]=getvalue(s)
|
|
end
|
|
arr
|
|
end
|
|
|
|
def getobject(s)
|
|
arr={}
|
|
while (key=getstring(s))
|
|
if (key=='') then break end
|
|
arr[key]=getvalue(s)
|
|
end
|
|
s.getc # skip the 9 'end of object' value
|
|
arr
|
|
end
|
|
|
|
# ----- getvalue parse and get value
|
|
|
|
def getvalue(s)
|
|
case s.getc
|
|
when 0; return getdouble(s) # number
|
|
when 1; return s.getc # boolean
|
|
when 2; return getstring(s) # string
|
|
when 3; return getobject(s) # object/hash
|
|
when 5; return nil # null
|
|
when 6; return nil # undefined
|
|
when 8; s.read(4) # mixedArray
|
|
return getobject(s) # |
|
|
when 10; return getarray(s) # array
|
|
else; return nil # error
|
|
end
|
|
end
|
|
|
|
# ====================================================================
|
|
# AMF write subroutines
|
|
|
|
# ----- putdata envelope data into AMF writeable form
|
|
# ----- encodevalue pack variables as AMF
|
|
|
|
def putdata(index,n)
|
|
d =encodestring(index+"/onResult")
|
|
d+=encodestring("null")
|
|
d+=[-1].pack("N")
|
|
d+=encodevalue(n)
|
|
end
|
|
|
|
def encodevalue(n)
|
|
case n.class.to_s
|
|
when 'Array'
|
|
a=10.chr+encodelong(n.length)
|
|
n.each do |b|
|
|
a+=encodevalue(b)
|
|
end
|
|
a
|
|
when 'Hash'
|
|
a=3.chr
|
|
n.each do |k,v|
|
|
a+=encodestring(k)+encodevalue(v)
|
|
end
|
|
a+0.chr+0.chr+9.chr
|
|
when 'String'
|
|
2.chr+encodestring(n)
|
|
when 'Bignum','Fixnum','Float'
|
|
0.chr+encodedouble(n)
|
|
when 'NilClass'
|
|
5.chr
|
|
else
|
|
RAILS_DEFAULT_LOGGER.error("Unexpected Ruby type for AMF conversion: "+n.class.to_s)
|
|
end
|
|
end
|
|
|
|
# ----- encodestring encode string with two-byte length
|
|
# ----- encodedouble encode number as eight-byte double precision float
|
|
# ----- encodelong encode number as four-byte long
|
|
|
|
def encodestring(n)
|
|
a,b=n.size.divmod(256)
|
|
a.chr+b.chr+n
|
|
end
|
|
|
|
def encodedouble(n)
|
|
[n].pack('G')
|
|
end
|
|
|
|
def encodelong(n)
|
|
[n].pack('N')
|
|
end
|
|
|
|
# ====================================================================
|
|
# Co-ordinate conversion
|
|
|
|
def lat2coord(a,basey,masterscale)
|
|
-(lat2y(a)-basey)*masterscale+250
|
|
end
|
|
|
|
def long2coord(a,baselong,masterscale)
|
|
(a-baselong)*masterscale+350
|
|
end
|
|
|
|
def lat2y(a)
|
|
180/Math::PI * Math.log(Math.tan(Math::PI/4+a*(Math::PI/180)/2))
|
|
end
|
|
|
|
def coord2lat(a,masterscale,basey)
|
|
y2lat((a-250)/-masterscale+basey)
|
|
end
|
|
|
|
def coord2long(a,masterscale,baselong)
|
|
(a-350)/masterscale+baselong
|
|
end
|
|
|
|
def y2lat(a)
|
|
180/Math::PI * (2*Math.atan(Math.exp(a*Math::PI/180))-Math::PI/2)
|
|
end
|
|
|
|
end
|