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[rails.git] / app / controllers / geocoder_controller.rb
index a4e1ded860d66916b2b2bbaba63aa7c1b4f59af3..6ec2d46f8ac2db2e752909ff92fe8db49d710b42 100644 (file)
@@ -10,28 +10,34 @@ class GeocoderController < ApplicationController
   before_action :require_oauth, :only => [:search]
 
   def search
-    normalize_params
-
+    @params = normalize_params
     @sources = []
-    if params[:lat] && params[:lon]
+
+    if @params[:lat] && @params[:lon]
       @sources.push "latlon"
       @sources.push "osm_nominatim_reverse"
       @sources.push "geonames_reverse" if defined?(GEONAMES_USERNAME)
-    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$/i)
-      @sources.push "ca_postcode"
-      @sources.push "osm_nominatim"
-    else
-      @sources.push "osm_nominatim"
-      @sources.push "geonames" if defined?(GEONAMES_USERNAME)
+    elsif @params[:query]
+      if @params[:query] =~ /^\d{5}(-\d{4})?$/
+        @sources.push "us_postcode"
+        @sources.push "osm_nominatim"
+      elsif @params[:query] =~ /^(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})$/i
+        @sources.push "uk_postcode"
+        @sources.push "osm_nominatim"
+      elsif @params[:query] =~ /^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i
+        @sources.push "ca_postcode"
+        @sources.push "osm_nominatim"
+      else
+        @sources.push "osm_nominatim"
+        @sources.push "geonames" if defined?(GEONAMES_USERNAME)
+      end
     end
 
-    render :layout => map_layout
+    if @sources.empty?
+      head :bad_request
+    else
+      render :layout => map_layout
+    end
   end
 
   def search_latlon
@@ -63,7 +69,7 @@ class GeocoderController < ApplicationController
     response = fetch_text("http://rpc.geocoder.us/service/csv?zip=#{escape_query(query)}")
 
     # parse the response
-    unless response.match(/couldn't find this zip/)
+    unless response =~ /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,
@@ -88,10 +94,10 @@ class GeocoderController < ApplicationController
     response = fetch_text("http://www.npemap.org.uk/cgi/geocoder.fcgi?format=text&postcode=#{escape_query(query)}")
 
     # parse the response
-    unless response.match(/Error/)
+    unless response =~ /Error/
       dataline = response.split(/\n/)[1]
       data = dataline.split(/,/) # easting,northing,postcode,lat,long
-      postcode = data[2].gsub(/'/, "")
+      postcode = data[2].delete("'")
       zoom = POSTCODE_ZOOM - postcode.count("#")
       @results.push(:lat => data[3], :lon => data[4], :zoom => zoom,
                     :name => postcode)
@@ -142,7 +148,7 @@ class GeocoderController < ApplicationController
     exclude = "&exclude_place_ids=#{params[:exclude]}" if params[:exclude]
 
     # ask nominatim
-    response = fetch_xml("http:#{NOMINATIM_URL}search?format=xml&q=#{escape_query(query)}#{viewbox}#{exclude}&accept-language=#{http_accept_language.user_preferred_languages.join(',')}")
+    response = fetch_xml("http:#{NOMINATIM_URL}search?format=xml&extratags=1&q=#{escape_query(query)}#{viewbox}#{exclude}&accept-language=#{http_accept_language.user_preferred_languages.join(',')}")
 
     # extract the results from the response
     results =  response.elements["searchresults"]
@@ -154,7 +160,9 @@ class GeocoderController < ApplicationController
     @results = []
 
     # create parameter hash for "more results" link
-    @more_params = params.merge(:exclude => more_url_params["exclude_place_ids"].first)
+    @more_params = params
+                   .permit(:query, :minlon, :minlat, :maxlon, :maxlat, :exclude)
+                   .merge(:exclude => more_url_params["exclude_place_ids"].first)
 
     # parse the response
     results.elements.each("place") do |place|
@@ -164,14 +172,19 @@ class GeocoderController < ApplicationController
       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(",")
-      if type.empty?
-        prefix_name = ""
-      else
-        prefix_name = t "geocoder.search_osm_nominatim.prefix.#{klass}.#{type}", :default => type.gsub("_", " ").capitalize
-      end
+      prefix_name = if type.empty?
+                      ""
+                    else
+                      t "geocoder.search_osm_nominatim.prefix.#{klass}.#{type}", :default => type.tr("_", " ").capitalize
+                    end
       if klass == "boundary" && 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
+        place.elements["extratags"].elements.each("tag") do |extratag|
+          if extratag.attributes["key"] == "place"
+            prefix_name = t "geocoder.search_osm_nominatim.prefix.place.#{extratag.attributes['value']}", :default => prefix_name
+          end
+        end
       end
       prefix = t "geocoder.search_osm_nominatim.prefix_format", :name => prefix_name
       object_type = place.attributes["osm_type"]
@@ -286,7 +299,13 @@ class GeocoderController < ApplicationController
   private
 
   def fetch_text(url)
-    OSM.http_client.get(URI.parse(url)).body
+    response = OSM.http_client.get(URI.parse(url))
+
+    if response.success?
+      response.body
+    else
+      raise response.status.to_s
+    end
   end
 
   def fetch_xml(url)
@@ -298,39 +317,40 @@ class GeocoderController < ApplicationController
   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*$/)
-      params.merge!(:lat => latlon[1].to_f, :lon => latlon[3].to_f).delete(:query)
+    if query = params[:query]
+      query.strip!
+
+      if latlon = query.match(/^([NS])\s*(\d{1,3}(\.\d*)?)\W*([EW])\s*(\d{1,3}(\.\d*)?)$/).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
+
+    params.permit(:query, :lat, :lon, :zoom, :minlat, :minlon, :maxlat, :maxlon)
   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)
+      lat = !captures[2].casecmp("s").zero? ? captures[0].to_f : -captures[0].to_f
+      lon = !captures[5].casecmp("w").zero? ? captures[3].to_f : -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)
+      lat = !captures[0].casecmp("s").zero? ? captures[1].to_f : -captures[1].to_f
+      lon = !captures[3].casecmp("w").zero? ? captures[4].to_f : -captures[4].to_f
     end
     { :lat => lat, :lon => lon }
   end
@@ -338,11 +358,11 @@ class GeocoderController < ApplicationController
   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)
+      lat = !captures[3].casecmp("s").zero? ? captures[0].to_f + captures[1].to_f / 60 : -(captures[0].to_f + captures[1].to_f / 60)
+      lon = !captures[7].casecmp("w").zero? ? captures[4].to_f + captures[5].to_f / 60 : -(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)
+      lat = !captures[0].casecmp("s").zero? ? captures[1].to_f + captures[2].to_f / 60 : -(captures[1].to_f + captures[2].to_f / 60)
+      lon = !captures[4].casecmp("w").zero? ? captures[5].to_f + captures[6].to_f / 60 : -(captures[5].to_f + captures[6].to_f / 60)
     end
     { :lat => lat, :lon => lon }
   end
@@ -350,11 +370,11 @@ class GeocoderController < ApplicationController
   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)
+      lat = !captures[4].casecmp("s").zero? ? captures[0].to_f + (captures[1].to_f + captures[2].to_f / 60) / 60 : -(captures[0].to_f + (captures[1].to_f + captures[2].to_f / 60) / 60)
+      lon = !captures[9].casecmp("w").zero? ? captures[5].to_f + (captures[6].to_f + captures[7].to_f / 60) / 60 : -(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)
+      lat = !captures[0].casecmp("s").zero? ? captures[1].to_f + (captures[2].to_f + captures[3].to_f / 60) / 60 : -(captures[1].to_f + (captures[2].to_f + captures[3].to_f / 60) / 60)
+      lon = !captures[5].casecmp("w").zero? ? captures[6].to_f + (captures[7].to_f + captures[8].to_f / 60) / 60 : -(captures[6].to_f + (captures[7].to_f + captures[8].to_f / 60) / 60)
     end
     { :lat => lat, :lon => lon }
   end