X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/98ab46c04661613e8be5279f8a9b03407b37a569..e48cbc6a5f54a0e18dc581ccbac3b13284313125:/app/controllers/amf_controller.rb diff --git a/app/controllers/amf_controller.rb b/app/controllers/amf_controller.rb index ba6651f6e..421444869 100644 --- a/app/controllers/amf_controller.rb +++ b/app/controllers/amf_controller.rb @@ -1,72 +1,74 @@ +# AMF Controller is a semi-standalone API for Flash clients, particularly Potlatch. +# All interaction between Potlatch (as a .SWF application) and the +# OSM database takes place using this controller. Messages are +# encoded in the Actionscript Message Format (AMF). +# +# See Also Potlatch::Potlatch and Potlatch::AMF +# +# Public domain. +# editions Systeme D / Richard Fairhurst 2004-2008 +# +# All in/out parameters are floats unless explicitly stated. +# +# to trap errors (getway_old,putway,putpoi,deleteway only): +# return(-1,"message") <-- just puts up a dialogue +# return(-2,"message") <-- also asks the user to e-mail me +# to log: +# RAILS_DEFAULT_LOGGER.error("Args: #{args[0]}, #{args[1]}, #{args[2]}, #{args[3]}") class AmfController < ApplicationController require 'stringio' + include Potlatch + session :off before_filter :check_write_availability - # AMF controller for Potlatch - # --------------------------- - # All interaction between Potlatch (as a .SWF application) and the - # OSM database takes place using this controller. Messages are - # encoded in the Actionscript Message Format (AMF). - # - # Public domain. Set your tab width to 4 to read this document. :) - # editions Systeme D / Richard Fairhurst 2004-2008 - # - # All in/out parameters are floats unless explicitly stated. - # Note that in getway/getway_old, SWF object name and way id are - #Êidentical and one could probably be eliminated. - # - # to trap errors (getway_old,putway,putpoi,deleteway only): - # return(-1,"message") <-- just puts up a dialogue - # return(-2,"message") <-- also asks the user to e-mail me - # to log: - # RAILS_DEFAULT_LOGGER.error("Args: #{args[0]}, #{args[1]}, #{args[2]}, #{args[3]}") - - # ==================================================================== - # Main AMF handler - - # ---- talk process AMF request - + # Main AMF handler. Tha talk method takes in AMF, figures out what to do and dispatched to the appropriate private method def talk req=StringIO.new(request.raw_post+0.chr) # Get POST data as request - # (cf http://www.ruby-forum.com/topic/122163) + # (cf http://www.ruby-forum.com/topic/122163) req.read(2) # Skip version indicator and client ID results={} # Results of each body renumberednodes={} # Shared across repeated putways + renumberedways={} # Shared across repeated putways # ------------- # Parse request - headers=getint(req) # Read number of headers + headers=AMF.getint(req) # Read number of headers headers.times do # Read each header - name=getstring(req) # | + name=AMF.getstring(req) # | req.getc # | skip boolean - value=getvalue(req) # | + value=AMF.getvalue(req) # | header["name"]=value # | end - bodies=getint(req) # Read number of bodies + bodies=AMF.getint(req) # Read number of bodies bodies.times do # Read each body - message=getstring(req) # | get message name - index=getstring(req) # | get index in response sequence - bytes=getlong(req) # | get total size in bytes - args=getvalue(req) # | get response (probably an array) + message=AMF.getstring(req) # | get message name + index=AMF.getstring(req) # | get index in response sequence + bytes=AMF.getlong(req) # | get total size in bytes + args=AMF.getvalue(req) # | get response (probably an array) case message - when 'getpresets'; results[index]=putdata(index,getpresets) - when 'whichways'; results[index]=putdata(index,whichways(args)) - when 'whichways_deleted'; results[index]=putdata(index,whichways_deleted(args)) - when 'getway'; results[index]=putdata(index,getway(args)) - when 'getway_old'; results[index]=putdata(index,getway_old(args)) - when 'getway_history'; results[index]=putdata(index,getway_history(args)) - when 'putway'; r=putway(args,renumberednodes) - renumberednodes=r[3] - results[index]=putdata(index,r) - when 'deleteway'; results[index]=putdata(index,deleteway(args)) - when 'putpoi'; results[index]=putdata(index,putpoi(args)) - when 'getpoi'; results[index]=putdata(index,getpoi(args)) + when 'getpresets'; results[index]=AMF.putdata(index,getpresets) + when 'whichways'; results[index]=AMF.putdata(index,whichways(args)) + when 'whichways_deleted'; results[index]=AMF.putdata(index,whichways_deleted(args)) + when 'getway'; results[index]=AMF.putdata(index,getway(args)) + when 'getrelation'; results[index]=AMF.putdata(index,getrelation(args)) + when 'getway_old'; results[index]=AMF.putdata(index,getway_old(args)) + when 'getway_history'; results[index]=AMF.putdata(index,getway_history(args)) + when 'putway'; r=putway(args,renumberednodes) + renumberednodes=r[3] + if r[1] != r[2] + renumberedways[r[1]] = r[2] + end + results[index]=AMF.putdata(index,r) + when 'putrelation'; results[index]=AMF.putdata(index,putrelation(args, renumberednodes, renumberedways)) + when 'deleteway'; results[index]=AMF.putdata(index,deleteway(args)) + when 'putpoi'; results[index]=AMF.putdata(index,putpoi(args)) + when 'getpoi'; results[index]=AMF.putdata(index,getpoi(args)) end end @@ -75,104 +77,33 @@ class AmfController < ApplicationController RAILS_DEFAULT_LOGGER.info(" Response: start") a,b=results.length.divmod(256) - render :content_type => "application/x-amf", :text => proc { |response, output| - output.write 0.chr+0.chr+0.chr+0.chr+a.chr+b.chr - results.each do |k,v| - output.write(v) - end - } + render :content_type => "application/x-amf", :text => proc { |response, output| + output.write 0.chr+0.chr+0.chr+0.chr+a.chr+b.chr + results.each do |k,v| + output.write(v) + end + } RAILS_DEFAULT_LOGGER.info(" Response: end") - end private - - # ==================================================================== - # Remote calls - - # ----- getpresets - # in: none - # does: reads tag preset menus, colours, and autocomplete config files - # out: [0] presets, [1] presetmenus, [2] presetnames, - # [3] colours, [4] casing, [5] areas, [6] autotags - # (all hashes) - - def getpresets - RAILS_DEFAULT_LOGGER.info(" Message: getpresets") - - # Read preset menus - presets={} - presetmenus={}; presetmenus['point']=[]; presetmenus['way']=[]; presetmenus['POI']=[] - presetnames={}; presetnames['point']={}; presetnames['way']={}; presetnames['POI']={} - presettype='' - presetcategory='' -# StringIO.open(txt) do |file| - File.open("#{RAILS_ROOT}/config/potlatch/presets.txt") do |file| - file.each_line {|line| - t=line.chomp - if (t=~/(\w+)\/(\w+)/) then - presettype=$1 - presetcategory=$2 - presetmenus[presettype].push(presetcategory) - presetnames[presettype][presetcategory]=["(no preset)"] - elsif (t=~/^(.+):\s?(.+)$/) then - pre=$1; kv=$2 - presetnames[presettype][presetcategory].push(pre) - presets[pre]={} - kv.split(',').each {|a| - if (a=~/^(.+)=(.*)$/) then presets[pre][$1]=$2 end - } - end - } - end - - # Read colours/styling - colours={}; casing={}; areas={} - File.open("#{RAILS_ROOT}/config/potlatch/colours.txt") do |file| - file.each_line {|line| - t=line.chomp - if (t=~/(\w+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)/) then - tag=$1 - if ($2!='-') then colours[tag]=$2.hex end - if ($3!='-') then casing[tag]=$3.hex end - if ($4!='-') then areas[tag]=$4.hex end - end - } - end - - # Read auto-complete - autotags={}; autotags['point']={}; autotags['way']={}; autotags['POI']={}; - File.open("#{RAILS_ROOT}/config/potlatch/autocomplete.txt") do |file| - file.each_line {|line| - t=line.chomp - if (t=~/^(\w+)\/(\w+)\s+(.+)$/) then - tag=$1; type=$2; values=$3 - if values=='-' then autotags[type][tag]=[] - else autotags[type][tag]=values.split(',').sort.reverse end - end - } - end - - [presets,presetmenus,presetnames,colours,casing,areas,autotags] + # Return presets (default tags and crap) to potlatch. + # Uses POTLATCH_PRESETS global, set up in OSM::Potlatch + def getpresets #:doc: + return POTLATCH_PRESETS end # ----- whichways - # return array of ways in current bounding box - - # in: [0] xmin, [1] ymin, [2] xmax, [3] ymax (bbox in degrees) - # [4] baselong (longitude of SWF map origin), - # [5] basey (projected latitude of SWF map origin), - # [6] masterscale (SWF map scale) - # does: finds all ways and POI nodes in bounding box - # at present, instead of using correct (=more complex) SQL to find - # corner-crossing ways, it simply enlarges the bounding box - # out: [0] array of way ids, - # [1] array of POIs - # (where each POI is an array containing: - # [0] id, [1] projected long, [2] projected lat, [3] hash of tags) - - def whichways(args) + # Find all the way ids and nodes (including tags and projected lat/lng) which aren't part of those ways in an are + # + # The argument is an array containing the following, in order: + # 0. minimum longitude + # 1. minimum latitude + # 2. maximum longitude + # 3. maximum latitude + # 4. baselong, 5. basey, 6. masterscale as above + def whichways(args) #:doc: xmin = args[0].to_f-0.01 ymin = args[1].to_f-0.01 xmax = args[2].to_f+0.01 @@ -183,36 +114,26 @@ class AmfController < ApplicationController RAILS_DEFAULT_LOGGER.info(" Message: whichways, bbox=#{xmin},#{ymin},#{xmax},#{ymax}") - waylist = ActiveRecord::Base.connection.select_all("SELECT DISTINCT current_way_nodes.id AS wayid"+ - " FROM current_way_nodes,current_nodes,current_ways "+ - " WHERE current_nodes.id=current_way_nodes.node_id "+ - " AND current_nodes.visible=1 "+ - " AND current_ways.id=current_way_nodes.id "+ - " AND current_ways.visible=1 "+ - " AND "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")) + # find the way ids in an area + nodes_in_area = Node.find_by_area(ymin, xmin, ymax, xmax, :conditions => "current_nodes.visible = 1", :include => :ways) + way_ids = nodes_in_area.collect { |node| node.way_ids }.flatten.uniq - ways = waylist.collect {|a| a['wayid'].to_i } # get an array of way IDs + # find the node ids in an area that aren't part of ways + nodes_not_used_in_area = nodes_in_area.select { |node| node.ways.empty? } + points = nodes_not_used_in_area.collect { |n| [n.id, n.lon_potlatch(baselong,masterscale), n.lat_potlatch(basey,masterscale), n.tags_as_hash] } - 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 "+ - " FROM current_nodes "+ - " LEFT OUTER JOIN current_way_nodes cwn ON cwn.node_id=current_nodes.id "+ - " WHERE "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")+ - " AND cwn.id IS NULL "+ - " AND current_nodes.visible=1") + # find the relations used by those nodes and ways + relation_ids = (Relation.find_for_nodes_and_ways(nodes_in_area.collect {|n| n.id}, way_ids)).collect {|n| n.id}.uniq - 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 - - [ways,points] + [way_ids,points,relation_ids] end # ----- whichways_deleted # return array of deleted ways in current bounding box - # in: as whichways # does: finds all deleted ways with a deleted node in bounding box # out: [0] array of way ids - - def whichways_deleted(args) + def whichways_deleted(args) #:doc: xmin = args[0].to_f-0.01 ymin = args[1].to_f-0.01 xmax = args[2].to_f+0.01 @@ -221,61 +142,68 @@ class AmfController < ApplicationController basey = args[5] masterscale = args[6] - sql=<<-EOF - SELECT DISTINCT current_ways.id - FROM current_nodes,way_nodes,current_ways - WHERE #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")} - AND way_nodes.node_id=current_nodes.id - AND way_nodes.id=current_ways.id - AND current_nodes.visible=0 - AND current_ways.visible=0 - EOF + sql=<<-EOF + SELECT DISTINCT current_ways.id + FROM current_nodes,way_nodes,current_ways + WHERE #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")} + AND way_nodes.node_id=current_nodes.id + AND way_nodes.id=current_ways.id + AND current_nodes.visible=0 + AND current_ways.visible=0 + EOF waylist = ActiveRecord::Base.connection.select_all(sql) ways = waylist.collect {|a| a['id'].to_i } - [ways] + [ways] end - + # ----- getway - # in: [0] SWF object name, - # [1] way id, [2] baselong, [3] basey, [4] masterscale - # does: gets way and all nodes - # out: [0] SWF object name (unchanged), - # [1] array of points - # (where each point is an array containing - # [0] projected long, [1] projected lat, [2] node id, - # [3] null, [4] hash of node tags), - # [2] xmin, [3] xmax, [4] ymin, [5] ymax (unprojected bbox) - - def getway(args) - objname,wayid,baselong,basey,masterscale=args + # Get a way with all of it's nodes and tags + # The input is an array with the following components, in order: + # 0. wayid - the ID of the way to get + # 1. baselong - origin of SWF map (longitude) + # 2. basey - origin of SWF map (latitude) + # 3. masterscale - SWF map scale + # + # The output is an array which contains all the nodes (with projected + # latitude and longitude) and tags for a way (and all the nodes tags). + # It also has the way's unprojected (WGS84) bbox. + # + # FIXME: The server really shouldn't be figuring out a ways bounding box and doing projection for potlatch + # FIXME: the argument splitting should be done in the 'talk' method, not here + def getway(args) #:doc: + wayid,baselong,basey,masterscale = args wayid = wayid.to_i - points = [] - xmin = ymin = 999999 - xmax = ymax = -999999 RAILS_DEFAULT_LOGGER.info(" Message: getway, id=#{wayid}") - readwayquery(wayid,true).each {|row| - points<<[long2coord(row['longitude'].to_f,baselong,masterscale),lat2coord(row['latitude'].to_f,basey,masterscale),row['id'].to_i,nil,tag2array(row['tags'])] - xmin = [xmin,row['longitude'].to_f].min - xmax = [xmax,row['longitude'].to_f].max - ymin = [ymin,row['latitude'].to_f].min - ymax = [ymax,row['latitude'].to_f].max - } + # Ideally we would do ":include => :nodes" here but if we do that + # then rails only seems to return the first copy of a node when a + # way includes a node more than once + way = Way.find(wayid) - attributes={} - attrlist=ActiveRecord::Base.connection.select_all "SELECT k,v FROM current_way_tags WHERE id=#{wayid}" - attrlist.each {|a| attributes[a['k'].gsub(':','|')]=a['v'] } + long_array = [] + lat_array = [] + points = [] + + way.nodes.each do |node| + projected_longitude = node.lon_potlatch(baselong,masterscale) # do projection for potlatch + projected_latitude = node.lat_potlatch(basey,masterscale) + id = node.id + tags_hash = node.tags_as_hash - [objname,points,attributes,xmin,xmax,ymin,ymax] + points << [projected_longitude, projected_latitude, id, nil, tags_hash] + long_array << projected_longitude + lat_array << projected_latitude + end + + [wayid,points,way.tags,long_array.min,long_array.max,lat_array.min,lat_array.max] end - + # ----- getway_old # returns old version of way - - # in: [0] SWF object name, [1] way id, - # [2] way version to get (or -1 for "last deleted version") - # [3] baselong, [4] basey, [5] masterscale + # in: [0] way id, + # [1] way version to get (or -1 for "last deleted version") + # [2] baselong, [3] basey, [4] masterscale # does: gets old version of way and all constituent nodes # for undelete, always uses the most recent version of each node # (even if it's moved) @@ -285,72 +213,142 @@ class AmfController < ApplicationController # [2] array of points (as getway _except_ [3] is node.visible?, 0 or 1), # [4] xmin, [5] xmax, [6] ymin, [7] ymax (unprojected bbox), # [8] way version - - def getway_old(args) + def getway_old(args) #:doc: RAILS_DEFAULT_LOGGER.info(" Message: getway_old (server is #{SERVER_URL})") -# if SERVER_URL=="www.openstreetmap.org" then return -1,"Revert is not currently enabled on the OpenStreetMap server." end - - objname,wayid,version,baselong,basey,masterscale=args + # if SERVER_URL=="www.openstreetmap.org" then return -1,"Revert is not currently enabled on the OpenStreetMap server." end + + wayid,version,baselong,basey,masterscale=args wayid = wayid.to_i version = version.to_i xmin = ymin = 999999 xmax = ymax = -999999 - points=[] - if version<0 - historic=false - version=getlastversion(wayid,version) - else - historic=true - end - readwayquery_old(wayid,version,historic).each { |row| + points=[] + if version<0 + historic=false + version=getlastversion(wayid,version) + else + historic=true + end + readwayquery_old(wayid,version,historic).each { |row| points<<[long2coord(row['longitude'].to_f,baselong,masterscale),lat2coord(row['latitude'].to_f,basey,masterscale),row['id'].to_i,row['visible'].to_i,tag2array(row['tags'].to_s)] xmin=[xmin,row['longitude'].to_f].min xmax=[xmax,row['longitude'].to_f].max ymin=[ymin,row['latitude' ].to_f].min ymax=[ymax,row['latitude' ].to_f].max - } + } - # get tags from this version + # get tags from this version attributes={} attrlist=ActiveRecord::Base.connection.select_all "SELECT k,v FROM way_tags WHERE id=#{wayid} AND version=#{version}" attrlist.each {|a| attributes[a['k'].gsub(':','|')]=a['v'] } - attributes['history']="Retrieved from v"+version.to_s + attributes['history']="Retrieved from v"+version.to_s - [0,objname,points,attributes,xmin,xmax,ymin,ymax,version] + [0,wayid,points,attributes,xmin,xmax,ymin,ymax,version] end # ----- getway_history # find history of a way - # in: [0] way id # does: finds history of a way # out: [0] array of previous versions (where each is # [0] version, [1] db timestamp (string), # [2] visible 0 or 1, # [3] username or 'anonymous' (string)) + def getway_history(args) #:doc: + wayid=args[0] + history=[] + sql=<<-EOF + SELECT version,timestamp,visible,display_name,data_public + FROM ways,users + WHERE ways.id=#{wayid} + AND ways.user_id=users.id + AND ways.visible=1 + ORDER BY version DESC + EOF + histlist=ActiveRecord::Base.connection.select_all(sql) + histlist.each { |row| + if row['data_public'].to_i==1 then user=row['display_name'] else user='anonymous' end + history<<[row['version'],row['timestamp'],row['visible'],user] + } + [history] + end - def getway_history(args) - wayid=args[0] - history=[] - sql=<<-EOF - SELECT version,timestamp,visible,display_name,data_public - FROM ways,users - WHERE ways.id=#{wayid} - AND ways.user_id=users.id - AND ways.visible=1 - ORDER BY version DESC - EOF - histlist=ActiveRecord::Base.connection.select_all(sql) - histlist.each { |row| - if row['data_public'].to_i==1 then user=row['display_name'] else user='anonymous' end - history<<[row['version'],row['timestamp'],row['visible'],user] - } - [history] + # ----- getrelation + # Get a relation with all of it's tags, and member IDs + # The input is an array with the following components, in order: + # 0. relid - the ID of the relation to get + # + # The output is an array which contains: + # [0] relation id, [1] hash of tags, [2] list of members + def getrelation(args) #:doc: + relid = args[0] + relid = relid.to_i + + RAILS_DEFAULT_LOGGER.info(" Message: getrel, id=#{relid}") + + rel = Relation.find(relid) + + [relid,rel.tags,rel.members]#nodes,ways] + end + + # ----- getrelation + # save relation to the database + # in: [0] user token (string), + # [1] original relation id (may be negative), + # [2] hash of tags, [3] list of members, + # [4] visible + # out: [0] 0 (success), [1] original relation id (unchanged), + # [2] new relation id + def putrelation(args, renumberednodes, renumberedways) #:doc: + usertoken,relid,tags,members,visible=args + uid=getuserid(usertoken) + if !uid then return -1,"You are not logged in, so the point could not be saved." end + + relid = relid.to_i + visible = visible.to_i + + # create a new relation, or find the existing one + if relid <= 0 + rel = Relation.new + else + rel = Relation.find(relid) + end + + # check the members are all positive, and correctly type + typedmembers = [] + members.each do |m| + mid = m[1].to_i + if mid < 0 + mid = renumberednodes[mid] if m[0] == 'node' + mid = renumberedways[mid] if m[0] == 'way' + if mid < 0 + return -2, "Negative ID unresolved" + end + end + typedmembers << [m[0], mid, m[2]] + end + + # assign new contents + rel.members = typedmembers + rel.tags = tags + rel.visible = visible + rel.user_id = uid + + # check it then save it + # BUG: the following is commented out because it always fails on my + # install. I think it's a Rails bug. + + #if !rel.preconditions_ok? + # return -2, "Relation preconditions failed" + #else + rel.save_with_history! + #end + + [0,relid,rel.id] end # ----- putway # saves a way to the database - # in: [0] user token (string), # [1] original way id (may be negative), # [2] array of points (as getway/getway_old), @@ -363,8 +361,7 @@ class AmfController < ApplicationController # out: [0] 0 (code for success), [1] original way id (unchanged), # [2] new way id, [3] hash of renumbered nodes (old id=>new id), # [4] xmin, [5] xmax, [6] ymin, [7] ymax (unprojected bbox) - - def putway(args,renumberednodes) + def putway(args,renumberednodes) #:doc: RAILS_DEFAULT_LOGGER.info(" putway started") usertoken,originalway,points,attributes,oldversion,baselong,basey,masterscale=args uid=getuserid(usertoken) @@ -375,32 +372,34 @@ class AmfController < ApplicationController db_now='@now'+(rand*100).to_i.to_s+uid.to_s+originalway.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()") originalway=originalway.to_i - oldversion=oldversion.to_i - + oldversion=oldversion.to_i + RAILS_DEFAULT_LOGGER.info(" Message: putway, id=#{originalway}") - # -- Temporary check for null IDs - - points.each do |a| - if a[2]==0 or a[2].nil? then return -2,"Server error - node with id 0 found in way #{originalway}." end - end + # -- Check for null IDs or short ways + + points.each do |a| + if a[2]==0 or a[2].nil? then return -2,"Server error - node with id 0 found in way #{originalway}." end + end + + if points.length<2 then return -2,"Server error - way is only #{points.length} points long." end # -- 3. read original way into memory xc={}; yc={}; tagc={}; vc={} if originalway>0 way=originalway - if oldversion==0 then r=readwayquery(way,false) - else r=readwayquery_old(way,oldversion,true) end - r.each { |row| - id=row['id'].to_i - if (id>0) then - xc[id]=row['longitude'].to_f - yc[id]=row['latitude' ].to_f - tagc[id]=row['tags'] - vc[id]=row['visible'].to_i - end - } + if oldversion==0 then r=readwayquery(way,false) + else r=readwayquery_old(way,oldversion,true) end + r.each { |row| + id=row['id'].to_i + if (id>0) then + xc[id]=row['longitude'].to_f + yc[id]=row['latitude' ].to_f + tagc[id]=row['tags'] + vc[id]=row['visible'].to_i + end + } ActiveRecord::Base.connection.update("UPDATE current_ways SET timestamp=#{db_now},user_id=#{uid},visible=1 WHERE id=#{way}") else way=ActiveRecord::Base.connection.insert("INSERT INTO current_ways (user_id,timestamp,visible) VALUES (#{uid},#{db_now},1)") @@ -415,7 +414,7 @@ class AmfController < ApplicationController xmin=ymin= 999999 xmax=ymax=-999999 insertsql='' - nodelist=[] + nodelist=[] points.each_index do |i| xs=coord2long(points[i][0],masterscale,baselong) @@ -423,7 +422,7 @@ class AmfController < ApplicationController xmin=[xs,xmin].min; xmax=[xs,xmax].max ymin=[ys,ymin].min; ymax=[ys,ymax].max node=points[i][2].to_i - tagstr=array2tag(points[i][4]) + tagstr=array2tag(points[i][4]) tagsql="'"+sqlescape(tagstr)+"'" lat=(ys * 10000000).round long=(xs * 10000000).round @@ -432,18 +431,18 @@ class AmfController < ApplicationController # compare node if node<0 # new node - create - if renumberednodes[node.to_s].nil? + if renumberednodes[node.to_s].nil? 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})") - 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})") + 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})") points[i][2]=newnode nodelist.push(newnode) renumberednodes[node.to_s]=newnode.to_s - else + else points[i][2]=renumberednodes[node.to_s].to_i - end + end elsif xc.has_key?(node) - nodelist.push(node) + nodelist.push(node) # old node from original way - update if ((xs/0.0000001).round!=(xc[node]/0.0000001).round or (ys/0.0000001).round!=(yc[node]/0.0000001).round or tagstr!=tagc[node] or vc[node]==0) 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})") @@ -454,16 +453,15 @@ class AmfController < ApplicationController end end - - # -- 6a. delete any nodes not in modified way + # -- 6a. delete any nodes not in modified way createuniquenodes(way,db_uqn,nodelist) # nodes which appear in this way but no other 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 + 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) @@ -474,10 +472,10 @@ class AmfController < ApplicationController EOF ActiveRecord::Base.connection.update(sql) - deleteuniquenoderelations(db_uqn,uid,db_now) + deleteuniquenoderelations(db_uqn,uid,db_now) ActiveRecord::Base.connection.execute("DROP TEMPORARY TABLE #{db_uqn}") - # 6b. insert new version of route into way_nodes + # 6b. insert new version of route into way_nodes insertsql ='' currentsql='' @@ -516,7 +514,6 @@ class AmfController < ApplicationController # ----- putpoi # save POI to the database - # in: [0] user token (string), # [1] original node id (may be negative), # [2] projected longitude, [3] projected latitude, @@ -526,8 +523,7 @@ class AmfController < ApplicationController # refuses save if the node has since become part of a way # out: [0] 0 (success), [1] original node id (unchanged), # [2] new node id - - def putpoi(args) + def putpoi(args) #:doc: usertoken,id,x,y,tags,visible,baselong,basey,masterscale=args uid=getuserid(usertoken) if !uid then return -1,"You are not logged in, so the point could not be saved." end @@ -537,12 +533,12 @@ class AmfController < ApplicationController id=id.to_i visible=visible.to_i - if visible==0 then - # if deleting, check node hasn't become part of a way - inway=ActiveRecord::Base.connection.select_one("SELECT cw.id FROM current_ways cw,current_way_nodes cwn WHERE cw.id=cwn.id AND cw.visible=1 AND cwn.node_id=#{id} LIMIT 1") - unless inway.nil? then return -1,"The point has since become part of a way, so you cannot save it as a POI." end - deleteitemrelations(id,'node',uid,db_now) - end + if visible==0 then + # if deleting, check node hasn't become part of a way + inway=ActiveRecord::Base.connection.select_one("SELECT cw.id FROM current_ways cw,current_way_nodes cwn WHERE cw.id=cwn.id AND cw.visible=1 AND cwn.node_id=#{id} LIMIT 1") + unless inway.nil? then return -1,"The point has since become part of a way, so you cannot save it as a POI." end + deleteitemrelations(id,'node',uid,db_now) + end x=coord2long(x.to_f,masterscale,baselong) y=coord2lat(y.to_f,masterscale,basey) @@ -550,427 +546,278 @@ class AmfController < ApplicationController 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 + 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})"); + 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 [0,id,newid] end # ----- getpoi - # read POI from database + # read POI from database # (only called on revert: POIs are usually read by whichways) - # in: [0] node id, [1] baselong, [2] basey, [3] masterscale # does: reads POI # out: [0] id (unchanged), [1] projected long, [2] projected lat, # [3] hash of tags - - 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'])] + def getpoi(args) #:doc: + id,baselong,basey,masterscale = args + + n = Node.find(id.to_i) + if n + return [n.id, n.lon_potlatch(baselong,masterscale), n.lat_potlatch(basey,masterscale), n.tags_as_hash] + else + return [nil,nil,nil,''] + end end # ----- deleteway # delete way and constituent nodes from database - # in: [0] user token (string), [1] way id # does: deletes way from db and any constituent nodes not used elsewhere # also removes ways/nodes from any relations they're in # out: [0] 0 (success), [1] way id (unchanged) - def deleteway(args) - usertoken,way=args - - RAILS_DEFAULT_LOGGER.info(" Message: deleteway, id=#{way}") + def deleteway(args) #:doc: + usertoken,way_id=args + RAILS_DEFAULT_LOGGER.info(" Message: deleteway, id=#{way_id}") uid=getuserid(usertoken) if !uid then return -1,"You are not logged in, so the way could not be deleted." end - way=way.to_i - db_uqn='unin'+(rand*100).to_i.to_s+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'+(rand*100).to_i.to_s+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars + # FIXME + # the next bit removes the way from any relations + # the delete_with_relations_and_nodes_and_history method should do this, + # but at present it just throws a 'precondition failed' + way=way.to_i + db_now='@now'+(rand*100).to_i.to_s+uid.to_s+way.abs.to_s+Time.new.to_i.to_s + db_uqn='unin'+(rand*100).to_i.to_s+uid.to_s+way.abs.to_s+Time.new.to_i.to_s ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()") - - # - delete any otherwise unused nodes - - createuniquenodes(way,db_uqn,[]) - -# unless (preserve.empty?) then -# ActiveRecord::Base.connection.execute("DELETE FROM #{db_uqn} WHERE node_id IN ("+preserve.join(',')+")") -# end - - 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) - + createuniquenodes(way,db_uqn,[]) deleteuniquenoderelations(db_uqn,uid,db_now) + deleteitemrelations(way_id,'way',uid,db_now) ActiveRecord::Base.connection.execute("DROP TEMPORARY TABLE #{db_uqn}") + # end of FIXME - # - 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_nodes WHERE id=#{way}") - ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}") - deleteitemrelations(way,'way',uid,db_now) - [0,way] -end - - + # now delete the way + user = User.find(uid) + way = Way.find(way_id) + way.delete_with_relations_and_nodes_and_history(user) + return [0,way_id] + end -# ==================================================================== -# Support functions for remote calls -def readwayquery(id,insistonvisible) - sql=<<-EOF + def readwayquery(id,insistonvisible) #:doc: + sql=<<-EOF SELECT latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,current_nodes.id,tags,visible FROM current_way_nodes,current_nodes WHERE current_way_nodes.id=#{id} AND current_way_nodes.node_id=current_nodes.id EOF - if insistonvisible then sql+=" AND current_nodes.visible=1 " end - sql+=" ORDER BY sequence_id" - ActiveRecord::Base.connection.select_all(sql) -end - -def getlastversion(id,version) - row=ActiveRecord::Base.connection.select_one("SELECT version FROM ways WHERE id=#{id} AND visible=1 ORDER BY version DESC LIMIT 1") - row['version'] -end - -def readwayquery_old(id,version,historic) - # Node handling on undelete (historic=false): - # - always use the node specified, even if it's moved - - # Node handling on revert (historic=true): - # - if it's a visible node, use a new node id (i.e. not mucking up the old one) - # which means the SWF needs to allocate new ids - # - if it's an invisible node, we can reuse the old node id - - # get node list from specified version of way, - # and the _current_ lat/long/tags of each node - - row=ActiveRecord::Base.connection.select_one("SELECT timestamp FROM ways WHERE version=#{version} AND id=#{id}") - waytime=row['timestamp'] - - sql=<<-EOF - SELECT cn.id,visible,latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,tags - FROM way_nodes wn,current_nodes cn - WHERE wn.version=#{version} - AND wn.id=#{id} - AND wn.node_id=cn.id - ORDER BY sequence_id - EOF - rows=ActiveRecord::Base.connection.select_all(sql) - - # if historic (full revert), get the old version of each node - # - if it's in another way now, generate a new id - # - if it's not in another way, use the old ID - if historic then - rows.each_index do |i| - sql=<<-EOF - SELECT latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,tags,cwn.id AS currentway - FROM nodes n - LEFT JOIN current_way_nodes cwn - ON cwn.node_id=n.id - WHERE n.id=#{rows[i]['id']} - AND n.timestamp<="#{waytime}" - AND cwn.id!=#{id} - ORDER BY n.timestamp DESC - LIMIT 1 - EOF - row=ActiveRecord::Base.connection.select_one(sql) - unless row.nil? then - nx=row['longitude'].to_f - ny=row['latitude'].to_f - if (row['currentway'] && (nx!=rows[i]['longitude'].to_f or ny!=rows[i]['latitude'].to_f or row['tags']!=rows[i]['tags'])) then rows[i]['id']=-1 end - rows[i]['longitude']=nx - rows[i]['latitude' ]=ny - rows[i]['tags' ]=row['tags'] - end - end + if insistonvisible then sql+=" AND current_nodes.visible=1 " end + sql+=" ORDER BY sequence_id" + ActiveRecord::Base.connection.select_all(sql) end - rows -end - -def createuniquenodes(way,uqn_name,nodelist) - # Find nodes which appear in this way but no others - sql=<<-EOF - CREATE TEMPORARY TABLE #{uqn_name} - SELECT a.node_id - FROM (SELECT DISTINCT node_id FROM current_way_nodes - WHERE id=#{way}) a - LEFT JOIN current_way_nodes b - ON b.node_id=a.node_id - AND b.id!=#{way} - WHERE b.node_id IS NULL - EOF - unless nodelist.empty? then - sql+="AND a.node_id NOT IN ("+nodelist.join(',')+")" - end - ActiveRecord::Base.connection.execute(sql) -end - + # Get the latest version id of a way + def getlastversion(id,version) #:doc: + old_way = OldWay.find(:first, :conditions => ['visible=1 AND id=?' , id], :order => 'version DESC') + old_way.version + end -# ==================================================================== -# Relations handling -# deleteuniquenoderelations(uqn_name,uid,db_now) -# deleteitemrelations(way|node,'way'|'node',uid,db_now) - -def deleteuniquenoderelations(uqn_name,uid,db_now) - sql=<<-EOF - SELECT node_id,cr.id FROM #{uqn_name},current_relation_members crm,current_relations cr - WHERE crm.member_id=node_id - AND crm.member_type='node' - AND crm.id=cr.id - AND cr.visible=1 - EOF - - relnodes=ActiveRecord::Base.connection.select_all(sql) - relnodes.each do |a| - removefromrelation(a['node_id'],'node',a['id'],uid,db_now) - end -end - -def deleteitemrelations(objid,type,uid,db_now) - sql=<<-EOF - SELECT cr.id FROM current_relation_members crm,current_relations cr - WHERE crm.member_id=#{objid} - AND crm.member_type='#{type}' - AND crm.id=cr.id - AND cr.visible=1 - EOF - - relways=ActiveRecord::Base.connection.select_all(sql) - relways.each do |a| - removefromrelation(objid,type,a['id'],uid,db_now) - end -end + def readwayquery_old(id,version,historic) #:doc: + # Node handling on undelete (historic=false): + # - always use the node specified, even if it's moved -def removefromrelation(objid,type,relation,uid,db_now) - rver=ActiveRecord::Base.connection.insert("INSERT INTO relations (id,user_id,timestamp,visible) VALUES (#{relation},#{uid},#{db_now},1)") - - tagsql=<<-EOF - INSERT INTO relation_tags (id,k,v,version) - SELECT id,k,v,#{rver} FROM current_relation_tags - WHERE id=#{relation} - EOF - ActiveRecord::Base.connection.insert(tagsql) - - membersql=<<-EOF - INSERT INTO relation_members (id,member_type,member_id,member_role,version) - SELECT id,member_type,member_id,member_role,#{rver} FROM current_relation_members - WHERE id=#{relation} - AND (member_id!=#{objid} OR member_type!='#{type}') - EOF - ActiveRecord::Base.connection.insert(membersql) - - ActiveRecord::Base.connection.update("UPDATE current_relations SET user_id=#{uid},timestamp=#{db_now} WHERE id=#{relation}") - ActiveRecord::Base.connection.execute("DELETE FROM current_relation_members WHERE id=#{relation} AND member_type='#{type}' AND member_id=#{objid}") -end + # Node handling on revert (historic=true): + # - if it's a visible node, use a new node id (i.e. not mucking up the old one) + # which means the SWF needs to allocate new ids + # - if it's an invisible node, we can reuse the old node id + # get node list from specified version of way, + # and the _current_ lat/long/tags of each node -def sqlescape(a) - a.gsub(/[\000-\037]/,"").gsub("'","''").gsub(92.chr) {92.chr+92.chr} -end + row=ActiveRecord::Base.connection.select_one("SELECT timestamp FROM ways WHERE version=#{version} AND id=#{id}") + waytime=row['timestamp'] -def tag2array(a) - tags={} - Tags.split(a) do |k, v| - tags[k.gsub(':','|')]=v + sql=<<-EOF + SELECT cn.id,visible,latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,tags + FROM way_nodes wn,current_nodes cn + WHERE wn.version=#{version} + AND wn.id=#{id} + AND wn.node_id=cn.id + ORDER BY sequence_id + EOF + rows=ActiveRecord::Base.connection.select_all(sql) + + # if historic (full revert), get the old version of each node + # - if it's in another way now, generate a new id + # - if it's not in another way, use the old ID + if historic then + rows.each_index do |i| + sql=<<-EOF + SELECT latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,tags,cwn.id AS currentway + FROM nodes n + LEFT JOIN current_way_nodes cwn + ON cwn.node_id=n.id + WHERE n.id=#{rows[i]['id']} + AND n.timestamp<="#{waytime}" + AND cwn.id!=#{id} + ORDER BY n.timestamp DESC + LIMIT 1 + EOF + row=ActiveRecord::Base.connection.select_one(sql) + unless row.nil? then + nx=row['longitude'].to_f + ny=row['latitude'].to_f + if (row['currentway'] && (nx!=rows[i]['longitude'].to_f or ny!=rows[i]['latitude'].to_f or row['tags']!=rows[i]['tags'])) then rows[i]['id']=-1 end + rows[i]['longitude']=nx + rows[i]['latitude' ]=ny + rows[i]['tags' ]=row['tags'] + end + end + end + rows end - tags -end -def array2tag(a) - tags = [] - a.each do |k,v| - if v=='' then next end - if v[0,6]=='(type ' then next end - tags << [k.gsub('|',':'), v] + def createuniquenodes(way,uqn_name,nodelist) #:doc: + # Find nodes which appear in this way but no others + sql=<<-EOF + CREATE TEMPORARY TABLE #{uqn_name} + SELECT a.node_id + FROM (SELECT DISTINCT node_id FROM current_way_nodes + WHERE id=#{way}) a + LEFT JOIN current_way_nodes b + ON b.node_id=a.node_id + AND b.id!=#{way} + WHERE b.node_id IS NULL + EOF + unless nodelist.empty? then + sql+="AND a.node_id NOT IN ("+nodelist.join(',')+")" + end + ActiveRecord::Base.connection.execute(sql) end - return Tags.join(tags) -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 + # ==================================================================== + # Relations handling + # deleteuniquenoderelations(uqn_name,uid,db_now) + # deleteitemrelations(way|node,'way'|'node',uid,db_now) + def deleteuniquenoderelations(uqn_name,uid,db_now) #:doc: + sql=<<-EOF + SELECT node_id,cr.id FROM #{uqn_name},current_relation_members crm,current_relations cr + WHERE crm.member_id=node_id + AND crm.member_type='node' + AND crm.id=cr.id + AND cr.visible=1 + EOF -# ==================================================================== -# AMF read subroutines + relnodes=ActiveRecord::Base.connection.select_all(sql) + relnodes.each do |a| + removefromrelation(a['node_id'],'node',a['id'],uid,db_now) + end + end -# ----- 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 deleteitemrelations(objid,type,uid,db_now) #:doc: + sql=<<-EOF + SELECT cr.id FROM current_relation_members crm,current_relations cr + WHERE crm.member_id=#{objid} + AND crm.member_type='#{type}' + AND crm.id=cr.id + AND cr.visible=1 + EOF -def getint(s) - s.getc*256+s.getc -end + relways=ActiveRecord::Base.connection.select_all(sql) + relways.each do |a| + removefromrelation(objid,type,a['id'],uid,db_now) + end + end -def getlong(s) - ((s.getc*256+s.getc)*256+s.getc)*256+s.getc -end + def removefromrelation(objid,type,relation,uid,db_now) #:doc: + rver=ActiveRecord::Base.connection.insert("INSERT INTO relations (id,user_id,timestamp,visible) VALUES (#{relation},#{uid},#{db_now},1)") -def getstring(s) - len=s.getc*256+s.getc - s.read(len) -end + tagsql=<<-EOF + INSERT INTO relation_tags (id,k,v,version) + SELECT id,k,v,#{rver} FROM current_relation_tags + WHERE id=#{relation} + EOF + ActiveRecord::Base.connection.insert(tagsql) -def getdouble(s) - a=s.read(8).unpack('G') # G big-endian, E little-endian - a[0] -end + membersql=<<-EOF + INSERT INTO relation_members (id,member_type,member_id,member_role,version) + SELECT id,member_type,member_id,member_role,#{rver} FROM current_relation_members + WHERE id=#{relation} + AND (member_id!=#{objid} OR member_type!='#{type}') + EOF + ActiveRecord::Base.connection.insert(membersql) -def getarray(s) - len=getlong(s) - arr=[] - for i in (0..len-1) - arr[i]=getvalue(s) + ActiveRecord::Base.connection.update("UPDATE current_relations SET user_id=#{uid},timestamp=#{db_now} WHERE id=#{relation}") + ActiveRecord::Base.connection.execute("DELETE FROM current_relation_members WHERE id=#{relation} AND member_type='#{type}' AND member_id=#{objid}") end - arr -end -def getobject(s) - arr={} - while (key=getstring(s)) - if (key=='') then break end - arr[key]=getvalue(s) + def sqlescape(a) #:doc: + a.gsub(/[\000-\037]/,"").gsub("'","''").gsub(92.chr) {92.chr+92.chr} 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 + def tag2array(a) #:doc: + tags={} + Tags.split(a) do |k, v| + tags[k.gsub(':','|')]=v + end + tags 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) + def array2tag(a) #:doc: + tags = [] + a.each do |k,v| + if v=='' then next end + if v[0,6]=='(type ' then next end + tags << [k.gsub('|',':'), 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) + return Tags.join(tags) 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 getuserid(token) #:doc: + if (token =~ /^(.+)\+(.+)$/) then + user = User.authenticate(:username => $1, :password => $2) + else + user = User.authenticate(:token => token) + end -def encodelong(n) - [n].pack('N') -end + return user ? user.id : nil; + end -# ==================================================================== -# Co-ordinate conversion + # ==================================================================== + # Co-ordinate conversion -def lat2coord(a,basey,masterscale) - -(lat2y(a)-basey)*masterscale+250 -end + def lat2coord(a,basey,masterscale) #:doc: + -(lat2y(a)-basey)*masterscale + end -def long2coord(a,baselong,masterscale) - (a-baselong)*masterscale+350 -end + def long2coord(a,baselong,masterscale) #:doc: + (a-baselong)*masterscale + end -def lat2y(a) - 180/Math::PI * Math.log(Math.tan(Math::PI/4+a*(Math::PI/180)/2)) -end + def lat2y(a) #:doc: + 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 coord2lat(a,masterscale,basey) #:doc: + y2lat(a/-masterscale+basey) + end -def coord2long(a,masterscale,baselong) - (a-350)/masterscale+baselong -end + def coord2long(a,masterscale,baselong) #:doc: + a/masterscale+baselong + end -def y2lat(a) - 180/Math::PI * (2*Math.atan(Math.exp(a*Math::PI/180))-Math::PI/2) -end + def y2lat(a) + 180/Math::PI * (2*Math.atan(Math.exp(a*Math::PI/180))-Math::PI/2) + end end