X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/f6758877e80430060d445fd92d9a30970a5f2816..3bbdb004477a21e736f3613788356b12ba7f564f:/app/controllers/geocoder_controller.rb?ds=inline diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb index 4c56ce9d7..592ff020a 100644 --- a/app/controllers/geocoder_controller.rb +++ b/app/controllers/geocoder_controller.rb @@ -1,38 +1,361 @@ -class GeocoderController < ApplicationController +# coding: utf-8 +class GeocoderController < ApplicationController + require 'uri' require 'net/http' require 'rexml/document' + before_filter :authorize_web + before_filter :set_locale + def search - @res_hash = {} - @postcode_arr = [] - - - if params[:query][:place_name] != nil or "" - place_name = params[:query][:place_name] - Net::HTTP.start('ws.geonames.org') do |http| - res = http.get("/search?q=#{place_name}&maxRows=10") - xml = REXML::Document.new(res.body) - xml.elements.each("/geonames/geoname") do |ele| - ele.elements.each("name"){ |n| @res_hash['name'] = n.text } - ele.elements.each("countryCode"){ |n| @res_hash['country'] = n.text } - ele.elements.each("lat"){ |n| @res_hash['lat'] = n.text } - ele.elements.each("lng"){ |n| @res_hash['lon']= n.text } - end - end + normalize_params + + @sources = [] + if params[:lat] && params[:lon] + @sources.push "osm_nominatim_reverse" + @sources.push "geonames_reverse" + elsif params[:query].match(/^\d{5}(-\d{4})?$/) + @sources.push "us_postcode" + @sources.push "osm_nominatim" + elsif params[:query].match(/^(GIR 0AA|[A-PR-UWYZ]([0-9]{1,2}|([A-HK-Y][0-9]|[A-HK-Y][0-9]([0-9]|[ABEHMNPRV-Y]))|[0-9][A-HJKS-UW])\s*[0-9][ABD-HJLNP-UW-Z]{2})$/i) + @sources.push "uk_postcode" + @sources.push "osm_nominatim" + elsif params[:query].match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i) + @sources.push "ca_postcode" + @sources.push "osm_nominatim" + else + @sources.push "osm_nominatim" + @sources.push "geonames" if defined?(GEONAMES_USERNAME) + end + + render :layout => map_layout + end + + def search_us_postcode + # get query parameters + query = params[:query] + + # create result array + @results = Array.new + + # ask geocoder.us (they have a non-commercial use api) + response = fetch_text("http://rpc.geocoder.us/service/csv?zip=#{escape_query(query)}") + + # parse the response + unless response.match(/couldn't find this zip/) + data = response.split(/\s*,\s+/) # lat,long,town,state,zip + @results.push({:lat => data[0], :lon => data[1], + :zoom => POSTCODE_ZOOM, + :prefix => "#{data[2]}, #{data[3]},", + :name => data[4]}) + end + + render :action => "results" + rescue Exception => ex + @error = "Error contacting rpc.geocoder.us: #{ex.to_s}" + render :action => "error" + end + + def search_uk_postcode + # get query parameters + query = params[:query] + + # create result array + @results = Array.new + + # ask npemap.org.uk to do a combined npemap + freethepostcode search + response = fetch_text("http://www.npemap.org.uk/cgi/geocoder.fcgi?format=text&postcode=#{escape_query(query)}") + + # parse the response + unless response.match(/Error/) + dataline = response.split(/\n/)[1] + data = dataline.split(/,/) # easting,northing,postcode,lat,long + postcode = data[2].gsub(/'/, "") + zoom = POSTCODE_ZOOM - postcode.count("#") + @results.push({:lat => data[3], :lon => data[4], :zoom => zoom, + :name => postcode}) + end + + render :action => "results" + rescue Exception => ex + @error = "Error contacting www.npemap.org.uk: #{ex.to_s}" + render :action => "error" + end + + def search_ca_postcode + # get query parameters + query = params[:query] + @results = Array.new + + # ask geocoder.ca (note - they have a per-day limit) + response = fetch_xml("http://geocoder.ca/?geoit=XML&postal=#{escape_query(query)}") + + # parse the response + if response.get_elements("geodata/error").empty? + @results.push({:lat => response.get_text("geodata/latt").to_s, + :lon => response.get_text("geodata/longt").to_s, + :zoom => POSTCODE_ZOOM, + :name => query.upcase}) end - - if params[:query][:postcode] - postcode = params[:query][:postcode] - Net::HTTP.start('www.freethepostcode.org') do |http| - unless resp.code ~ /^2*/ - resp = http.get("/geocode?postcode=#{postcode}") - lat = resp.body.scan(/[4-6][0-9]\.?[0-9]+/) - lon = resp.body.scan(/[-+][0-9]\.?[0-9]+/) - @postcode_array = [lat, lon] - else + + render :action => "results" + rescue Exception => ex + @error = "Error contacting geocoder.ca: #{ex.to_s}" + render :action => "error" + end + + def search_osm_nominatim + # get query parameters + query = params[:query] + minlon = params[:minlon] + minlat = params[:minlat] + maxlon = params[:maxlon] + maxlat = params[:maxlat] + + # get view box + if minlon && minlat && maxlon && maxlat + viewbox = "&viewbox=#{minlon},#{maxlat},#{maxlon},#{minlat}" + end + + # get objects to excude + if params[:exclude] + exclude = "&exclude_place_ids=#{params[:exclude].join(',')}" + end + + # ask nominatim + response = fetch_xml("#{NOMINATIM_URL}search?format=xml&q=#{escape_query(query)}#{viewbox}#{exclude}&accept-language=#{http_accept_language.user_preferred_languages.join(',')}") + + # create result array + @results = Array.new + + # create parameter hash for "more results" link + @more_params = params.reverse_merge({ :exclude => [] }) + + # extract the results from the response + results = response.elements["searchresults"] + + # parse the response + results.elements.each("place") do |place| + lat = place.attributes["lat"].to_s + lon = place.attributes["lon"].to_s + klass = place.attributes["class"].to_s + type = place.attributes["type"].to_s + name = place.attributes["display_name"].to_s + min_lat,max_lat,min_lon,max_lon = place.attributes["boundingbox"].to_s.split(",") + prefix_name = t "geocoder.search_osm_nominatim.prefix.#{klass}.#{type}", :default => type.gsub("_", " ").capitalize + if klass == 'boundary' and type == 'administrative' + rank = (place.attributes["place_rank"].to_i + 1) / 2 + prefix_name = t "geocoder.search_osm_nominatim.admin_levels.level#{rank}", :default => prefix_name end - redirect_to "/index.html?lat=#{@postcode_array[0]}&lon=#{@postcode_array[1]}&zoom=14" + prefix = t "geocoder.search_osm_nominatim.prefix_format", :name => prefix_name + object_type = place.attributes["osm_type"] + object_id = place.attributes["osm_id"] + + @results.push({:lat => lat, :lon => lon, + :min_lat => min_lat, :max_lat => max_lat, + :min_lon => min_lon, :max_lon => max_lon, + :prefix => prefix, :name => name, + :type => object_type, :id => object_id}) + @more_params[:exclude].push(place.attributes["place_id"].to_s) + end + + render :action => "results" +# rescue Exception => ex +# @error = "Error contacting nominatim.openstreetmap.org: #{ex.to_s}" +# render :action => "error" + end + + def search_geonames + # get query parameters + query = params[:query] + + # create result array + @results = Array.new + + # ask geonames.org + response = fetch_xml("http://api.geonames.org/search?q=#{escape_query(query)}&maxRows=20&username=#{GEONAMES_USERNAME}") + + # parse the response + response.elements.each("geonames/geoname") do |geoname| + lat = geoname.get_text("lat").to_s + lon = geoname.get_text("lng").to_s + name = geoname.get_text("name").to_s + country = geoname.get_text("countryName").to_s + @results.push({:lat => lat, :lon => lon, + :zoom => GEONAMES_ZOOM, + :name => name, + :suffix => ", #{country}"}) end + + render :action => "results" + rescue Exception => ex + @error = "Error contacting ws.geonames.org: #{ex.to_s}" + render :action => "error" end + + def search_osm_nominatim_reverse + # get query parameters + lat = params[:lat] + lon = params[:lon] + zoom = params[:zoom] + + # create result array + @results = Array.new + + # ask nominatim + response = fetch_xml("#{NOMINATIM_URL}reverse?lat=#{lat}&lon=#{lon}&zoom=#{zoom}&accept-language=#{http_accept_language.user_preferred_languages.join(',')}") + + # parse the response + response.elements.each("reversegeocode/result") do |result| + lat = result.attributes["lat"].to_s + lon = result.attributes["lon"].to_s + object_type = result.attributes["osm_type"] + object_id = result.attributes["osm_id"] + description = result.get_text.to_s + + @results.push({:lat => lat, :lon => lon, + :zoom => zoom, + :name => description, + :type => object_type, :id => object_id}) + end + + render :action => "results" + rescue Exception => ex + @error = "Error contacting nominatim.openstreetmap.org: #{ex.to_s}" + render :action => "error" + end + + def search_geonames_reverse + # get query parameters + lat = params[:lat] + lon = params[:lon] + + # create result array + @results = Array.new + + # ask geonames.org + response = fetch_xml("http://ws.geonames.org/countrySubdivision?lat=#{lat}&lng=#{lon}") + + # parse the response + response.elements.each("geonames/countrySubdivision") do |geoname| + name = geoname.get_text("adminName1").to_s + country = geoname.get_text("countryName").to_s + @results.push({:lat => lat, :lon => lon, + :zoom => GEONAMES_ZOOM, + :name => name, + :suffix => ", #{country}"}) + end + + render :action => "results" + rescue Exception => ex + @error = "Error contacting ws.geonames.org: #{ex.to_s}" + render :action => "error" + end + +private + + def fetch_text(url) + return Net::HTTP.get(URI.parse(url)) + end + + def fetch_xml(url) + return REXML::Document.new(fetch_text(url)) + end + + def format_distance(distance) + return t("geocoder.distance", :count => distance) + end + + def format_direction(bearing) + return t("geocoder.direction.south_west") if bearing >= 22.5 and bearing < 67.5 + return t("geocoder.direction.south") if bearing >= 67.5 and bearing < 112.5 + return t("geocoder.direction.south_east") if bearing >= 112.5 and bearing < 157.5 + return t("geocoder.direction.east") if bearing >= 157.5 and bearing < 202.5 + return t("geocoder.direction.north_east") if bearing >= 202.5 and bearing < 247.5 + return t("geocoder.direction.north") if bearing >= 247.5 and bearing < 292.5 + return t("geocoder.direction.north_west") if bearing >= 292.5 and bearing < 337.5 + return t("geocoder.direction.west") + end + + def format_name(name) + return name.gsub(/( *\[[^\]]*\])*$/, "") + end + + def count_results(results) + count = 0 + + results.each do |source| + count += source[:results].length if source[:results] + end + + return count + end + + def escape_query(query) + return URI.escape(query, Regexp.new("[^#{URI::PATTERN::UNRESERVED}]", false, 'N')) + end + + def normalize_params + query = params[:query] + return unless query + + query.strip! + + if latlon = query.match(/^([NS])\s*(\d{1,3}(\.\d*)?)\W*([EW])\s*(\d{1,3}(\.\d*)?)$/).try(:captures) # [NSEW] decimal degrees + params.merge!(nsew_to_decdeg(latlon)).delete(:query) + elsif latlon = query.match(/^(\d{1,3}(\.\d*)?)\s*([NS])\W*(\d{1,3}(\.\d*)?)\s*([EW])$/).try(:captures) # decimal degrees [NSEW] + params.merge!(nsew_to_decdeg(latlon)).delete(:query) + + elsif latlon = query.match(/^([NS])\s*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?$/).try(:captures) # [NSEW] degrees, decimal minutes + params.merge!(ddm_to_decdeg(latlon)).delete(:query) + elsif latlon = query.match(/^(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\s*([NS])\W*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\s*([EW])$/).try(:captures) # degrees, decimal minutes [NSEW] + params.merge!(ddm_to_decdeg(latlon)).delete(:query) + + elsif latlon = query.match(/^([NS])\s*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?$/).try(:captures) # [NSEW] degrees, minutes, decimal seconds + params.merge!(dms_to_decdeg(latlon)).delete(:query) + elsif latlon = query.match(/^(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]\s*([NS])\W*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?\s*([EW])$/).try(:captures) # degrees, minutes, decimal seconds [NSEW] + params.merge!(dms_to_decdeg(latlon)).delete(:query) + + elsif latlon = query.match(/^\s*([+-]?\d+(\.\d*)?)\s*[\s,]\s*([+-]?\d+(\.\d*)?)\s*$/) + params.merge!({:lat => latlon[1].to_f, :lon => latlon[3].to_f}).delete(:query) + end + end + + def nsew_to_decdeg(captures) + begin + Float(captures[0]) + captures[2].downcase != 's' ? lat = captures[0].to_f : lat = -(captures[0].to_f) + captures[5].downcase != 'w' ? lon = captures[3].to_f : lon = -(captures[3].to_f) + rescue + captures[0].downcase != 's' ? lat = captures[1].to_f : lat = -(captures[1].to_f) + captures[3].downcase != 'w' ? lon = captures[4].to_f : lon = -(captures[4].to_f) + end + {:lat => lat, :lon => lon} + end + + def ddm_to_decdeg(captures) + begin + Float(captures[0]) + captures[3].downcase != 's' ? lat = captures[0].to_f + captures[1].to_f/60 : lat = -(captures[0].to_f + captures[1].to_f/60) + captures[7].downcase != 'w' ? lon = captures[4].to_f + captures[5].to_f/60 : lon = -(captures[4].to_f + captures[5].to_f/60) + rescue + captures[0].downcase != 's' ? lat = captures[1].to_f + captures[2].to_f/60 : lat = -(captures[1].to_f + captures[2].to_f/60) + captures[4].downcase != 'w' ? lon = captures[5].to_f + captures[6].to_f/60 : lon = -(captures[5].to_f + captures[6].to_f/60) + end + {:lat => lat, :lon => lon} + end + + def dms_to_decdeg(captures) + begin + Float(captures[0]) + captures[4].downcase != 's' ? lat = captures[0].to_f + (captures[1].to_f + captures[2].to_f/60)/60 : lat = -(captures[0].to_f + (captures[1].to_f + captures[2].to_f/60)/60) + captures[9].downcase != 'w' ? lon = captures[5].to_f + (captures[6].to_f + captures[7].to_f/60)/60 : lon = -(captures[5].to_f + (captures[6].to_f + captures[7].to_f/60)/60) + rescue + captures[0].downcase != 's' ? lat = captures[1].to_f + (captures[2].to_f + captures[3].to_f/60)/60 : lat = -(captures[1].to_f + (captures[2].to_f + captures[3].to_f/60)/60) + captures[5].downcase != 'w' ? lon = captures[6].to_f + (captures[7].to_f + captures[8].to_f/60)/60 : lon = -(captures[6].to_f + (captures[7].to_f + captures[8].to_f/60)/60) + end + {:lat => lat, :lon => lon} + end + end