X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/77d2fcf9dd80a57e2748ff4a57fb1d603562b9e9..3c79240a6ab23e4103826dd1cec7a12a19e948db:/app/controllers/geocoder_controller.rb diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb index 76b157faa..69c35e0e3 100644 --- a/app/controllers/geocoder_controller.rb +++ b/app/controllers/geocoder_controller.rb @@ -1,133 +1,165 @@ class GeocoderController < ApplicationController - layout 'site' - + require 'uri' require 'net/http' require 'rexml/document' def search - if params[:postcode] and not params[:postcode].empty? - check_postcode(params[:postcode]) - elsif params[:query][:postcode] and not params[:query][:postcode].empty? - check_postcode(params[:query][:postcode]) - elsif params[:query][:place_name] - redirect_to :controller => 'geocoder', :action => 'results', :params => {:place_name => params[:query][:place_name]} - end + @query = params[:query] + @results = Array.new + + if @query.match(/^\d{5}(-\d{4})?$/) + @results.push search_us_postcode(@query) + elsif @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) + @results.push search_uk_postcode(@query) + elsif @query.match(/[A-Z]\d[A-Z]\s*\d[A-Z]\d/i) + @results.push search_ca_postcode(@query) + else + @results.push search_osm_namefinder(@query) + @results.push search_geonames(@query) + end + end + +private + + def search_us_postcode(query) + results = Array.new + + # ask geocoder.us (they have a non-commercial use api) + response = fetch_text("http://rpc.geocoder.us/service/csv?zip=#{URI.escape(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 => 12, + :prefix => "#{data[2]}, #{data[3]}, ", + :name => data[4]}) + end + + return { :source => "Geocoder.us", :url => "http://geocoder.us/", :results => results } + rescue Exception => ex + return { :source => "Geocoder.us", :url => "http://geocoder.us/", :error => "Error contacting rpc.geocoder.us: #{ex.to_s}" } + end + + def search_uk_postcode(query) + 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=#{URI.escape(query)}") + + # parse the response + unless response.match(/Error/) + dataline = response.split(/\n/)[1] + data = dataline.split(/,/) # easting,northing,postcode,lat,long + results.push({:lat => data[3], :lon => data[4], :zoom => 12, + :name => data[2].gsub(/'/, "")}) + end + + return { :source => "NPEMap / FreeThePostcode", :url => "http://www.npemap.org.uk/", :results => results } + rescue Exception => ex + return { :source => "NPEMap / FreeThePostcode", :url => "http://www.npemap.org.uk/", :error => "Error contacting www.npemap.org.uk: #{ex.to_s}" } + end + + def search_ca_postcode(query) + results = Array.new + + # ask geocoder.ca (note - they have a per-day limit) + response = fetch_xml("http://geocoder.ca/?geoit=XML&postal=#{URI.escape(query)}") + + # parse the response + unless response.get_elements("geodata/error") + results.push({:lat => response.get_text("geodata/latt").to_s, + :lon => response.get_text("geodata/longt").to_s, + :zoom => 12, + :name => query.upcase}) + end + + return { :source => "Geocoder.CA", :url => "http://geocoder.ca/", :results => results } + rescue Exception => ex + return { :source => "Geocoder.CA", :url => "http://geocoder.ca/", :error => "Error contacting geocoder.ca: #{ex.to_s}" } end - def check_postcode(p) - - @postcode_arr = [] - postcode = p.upcase - escaped_postcode = postcode.sub(/\s/,'%20') - - begin - if postcode.match(/(^\d{5}$)|(^\d{5}-\d{4}$)/) - # Its a zip code - ask geocoder.us - # (They have a non commerical use api) - Net::HTTP.start('rpc.geocoder.us') do |http| - resp = http.get("/service/csv?zip=#{postcode}") - if resp.body.match(/couldn't find this zip/) - redirect_to :controller => params[:next_controller], :action => params[:next_action], :error => "invalid_zip_code" - return - end - data = resp.body.split(/, /) # lat,long,town,state,zip - lat = data[0] - lon = data[1] - redirect_to :controller => params[:next_controller], :action => params[:next_action], :mlat => lat, :mlon => lon, :zoom => 14 - return - end - elsif postcode.match(/^([A-Z]{1,2}\d+[A-Z]?\s*\d[A-Z]{2})/) - # It matched our naive UK postcode regexp - # Ask npemap to do a combined npemap + freethepostcode search - Net::HTTP.start('www.npemap.org.uk') do |http| - resp = http.get("/cgi/geocoder.fcgi?format=text&postcode=#{escaped_postcode}") - dataline = resp.body.split(/\n/)[1] - data = dataline.split(/,/) # easting,northing,postcode,lat,long - lat = data[3] - lon = data[4] - redirect_to :controller => params[:next_controller], :action => params[:next_action], :mlat => lat, :mlon => lon, :zoom => 14 - return - end - elsif postcode.match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d/) - # It's a canadian postcode - # Ask geocoder.ca (note - they have a per-day limit) - postcode = postcode.sub(/\s/,'') - Net::HTTP.start('geocoder.ca') do |http| - resp = http.get("?geoit=XML&postal=#{postcode}") - data_lat = resp.body.slice(/latt>.*?.*?]/)[1] - lon = data_lon.split(/[<>]/)[1] - redirect_to :controller => params[:next_controller], :action => params[:next_action], :mlat => lat, :mlon => lon, :zoom => 14 - return - end - elsif postcode.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]) [0-9][ABD-HJLNP-UW-Z]{2}) - /) - #its a UK postcode - begin - Net::HTTP.start('www.freethepostcode.org') do |http| - resp = http.get("/geocode?postcode=#{postcode}") - lat = resp.body.scan(/[4-6][0-9]\.?[0-9]+/) - lon = resp.body.scan(/[-+][0-9]\.?[0-9]+/) - redirect_to :controller => params[:next_controller], :action => params[:next_action], :mlat => lat, :mlon => lon, :zoom => 14 - return - end - rescue - redirect_to :controller => params[:next_controller], :action => params[:next_action], :error => "invalid_postcode" - #redirect to somewhere else - end - elsif - # Some other postcode / zip code - # Throw it at geonames, and see if they have any luck with it - Net::HTTP.start('ws.geonames.org') do |http| - resp = http.get("/postalCodeSearch?postalcode=#{escaped_postcode}&maxRows=1") - hits = resp.body.slice(/totalResultsCount>.*?]/)[1] - if hits == "0" - # Geonames doesn't know, it's probably wrong - redirect_to :controller => params[:next_controller], :action => params[:next_action], :error => "invalid_postcode_or_zip" - return - end - data_lat = resp.body.slice(/lat>.*?.*?]/)[1] - lon = data_lon.split(/[<>]/)[1] - redirect_to :controller => params[:next_controller], :action => params[:next_action], :mlat => lat, :mlon => lon, :zoom => 14 - end + def search_osm_namefinder(query) + results = Array.new + + # ask OSM namefinder + response = fetch_xml("http://www.frankieandshadow.com/osm/search.xml?find=#{URI.escape(query)}") + + # parse the response + response.elements.each("searchresults/named") do |named| + lat = named.attributes["lat"].to_s + lon = named.attributes["lon"].to_s + zoom = named.attributes["zoom"].to_s + place = named.elements["place/named"] || named.elements["nearestplaces/named"] + type = named.attributes["info"].to_s.capitalize + name = named.attributes["name"].to_s + description = named.elements["description"].to_s + if name.empty? + prefix = "" + name = type else - # Some other postcode / zip file - redirect_to :controller => params[:next_controller], :action => params[:next_action], :error => "invalid_postcode_or_zip" - return + prefix = "#{type} " end - rescue - #Its likely that an api is down - redirect_to :controller => params[:next_controller], :action => params[:next_action], :error => "api_down" + if place + distance = format_distance(place.attributes["approxdistance"].to_i) + direction = format_direction(place.attributes["direction"].to_i) + placename = place.attributes["name"].to_s + suffix = ", #{distance} #{direction} of #{placename}" + else + suffix = "" + end + results.push({:lat => lat, :lon => lon, :zoom => zoom, + :prefix => prefix, :name => name, :suffix => suffix, + :description => description}) end + + return { :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :results => results } + rescue Exception => ex + return { :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :error => "Error contacting www.frankieandshadow.com: #{ex.to_s}" } end - def results - @place_name = params[:place_name] - res_hash = {} - @res_ary = [] - begin - 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| - res_hash = {} - ele.elements.each("name"){ |n| res_hash['name'] = n.text } - ele.elements.each("countryCode"){ |n| res_hash['countrycode'] = n.text } - ele.elements.each("countryName"){ |n| res_hash['countryname'] = n.text } - ele.elements.each("lat"){ |n| res_hash['lat'] = n.text } - ele.elements.each("lng"){ |n| res_hash['lon']= n.text } - @res_ary << res_hash - end - end + def search_geonames(query) + results = Array.new + + # ask geonames.org + response = fetch_xml("http://ws.geonames.org/search?q=#{URI.escape(query)}&maxRows=20") - flash.delete(:notice) - rescue Timeout::Error - flash[:notice] = "Timed out waiting for results from ws.geonames.org" - rescue Exception => ex - flash[:notice] = "Error contacting ws.geonames.org: #{ex.to_s}" + # 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 => 12, + :name => name, + :suffix => ", #{country}"}) end + + return { :source => "GeoNames", :url => "http://www.geonames.org/", :results => results } + rescue Exception => ex + return { :source => "GeoNames", :url => "http://www.geonames.org/", :error => "Error contacting ws.geonames.org: #{ex.to_s}" } + end + + 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 "less than 1km" if distance == 0 + return "about #{distance}km" + end + + def format_direction(bearing) + return "south-west" if bearing >= 22.5 and bearing < 67.5 + return "south" if bearing >= 67.5 and bearing < 112.5 + return "south-east" if bearing >= 112.5 and bearing < 157.5 + return "east" if bearing >= 157.5 and bearing < 202.5 + return "north-east" if bearing >= 202.5 and bearing < 247.5 + return "north" if bearing >= 247.5 and bearing < 292.5 + return "north-west" if bearing >= 292.5 and bearing < 337.5 + return "west" end end