+# coding: utf-8
+
class GeocoderController < ApplicationController
require 'uri'
require 'net/http'
before_filter :set_locale
def search
- @query = params[:query]
- @sources = Array.new
-
- @query.sub(/^\s+/, "")
- @query.sub(/\s+$/, "")
+ normalize_params
- if @query.match(/^[+-]?\d+(\.\d*)?\s*[\s,]\s*[+-]?\d+(\.\d*)?$/)
+ @sources = []
+ if params[:lat] && params[:lon]
@sources.push "latlon"
- elsif @query.match(/^\d{5}(-\d{4})?$/)
+ @sources.push "osm_nominatim_reverse"
+ @sources.push "geonames_reverse"
+ elsif params[:query].match(/^\d{5}(-\d{4})?$/)
@sources.push "us_postcode"
@sources.push "osm_nominatim"
- elsif @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})$/i)
+ elsif params[:query].match(/^(GIR 0AA|[A-PR-UWYZ]([0-9]{1,2}|([A-HK-Y][0-9]|[A-HK-Y][0-9]([0-9]|[ABEHMNPRV-Y]))|[0-9][A-HJKS-UW])\s*[0-9][ABD-HJLNP-UW-Z]{2})$/i)
@sources.push "uk_postcode"
@sources.push "osm_nominatim"
- elsif @query.match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i)
+ elsif params[:query].match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i)
@sources.push "ca_postcode"
@sources.push "osm_nominatim"
else
@sources.push "osm_nominatim"
- @sources.push "geonames"
+ @sources.push "geonames" if defined?(GEONAMES_USERNAME)
end
end
def search_latlon
- # get query parameters
- query = params[:query]
-
- # create result array
- @results = Array.new
-
- # decode the location
- if m = query.match(/^\s*([+-]?\d+(\.\d*)?)\s*[\s,]\s*([+-]?\d+(\.\d*)?)\s*$/)
- lat = m[1].to_f
- lon = m[3].to_f
- end
-
- # generate results
+ lat = params[:lat].to_f
+ lon = params[:lon].to_f
if lat < -90 or lat > 90
@error = "Latitude #{lat} out of range"
render :action => "error"
@error = "Longitude #{lon} out of range"
render :action => "error"
else
- @results.push({:lat => lat, :lon => lon,
- :zoom => POSTCODE_ZOOM,
- :name => "#{lat}, #{lon}"})
+ @results = [{:lat => lat, :lon => lon,
+ :zoom => params[:zoom],
+ :name => "#{lat}, #{lon}"}]
render :action => "results"
end
render :action => "error"
end
- def search_osm_namefinder
- # get query parameters
- query = params[:query]
-
- # create result array
- @results = Array.new
-
- # ask OSM namefinder
- response = fetch_xml("http://gazetteer.openstreetmap.org/namefinder/search.xml?find=#{escape_query(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
- prefix = t "geocoder.search_osm_namefinder.prefix", :type => type
- end
-
- if place
- distance = format_distance(place.attributes["approxdistance"].to_i)
- direction = format_direction(place.attributes["direction"].to_i)
- placename = format_name(place.attributes["name"].to_s)
- suffix = t "geocoder.search_osm_namefinder.suffix_place", :distance => distance, :direction => direction, :placename => placename
-
- if place.attributes["rank"].to_i <= 30
- parent = nil
- parentrank = 0
- parentscore = 0
-
- place.elements.each("nearestplaces/named") do |nearest|
- nearestrank = nearest.attributes["rank"].to_i
- nearestscore = nearestrank / nearest.attributes["distance"].to_f
-
- if nearestrank > 30 and
- ( nearestscore > parentscore or
- ( nearestscore == parentscore and nearestrank > parentrank ) )
- parent = nearest
- parentrank = nearestrank
- parentscore = nearestscore
- end
- end
-
- if parent
- parentname = format_name(parent.attributes["name"].to_s)
-
- if place.attributes["info"].to_s == "suburb"
- suffix = t "geocoder.search_osm_namefinder.suffix_suburb", :suffix => suffix, :parentname => parentname
- else
- parentdistance = format_distance(parent.attributes["approxdistance"].to_i)
- parentdirection = format_direction(parent.attributes["direction"].to_i)
- suffix = t "geocoder.search_osm_namefinder.suffix_parent", :suffix => suffix, :parentdistance => parentdistance, :parentdirection => parentdirection, :parentname => parentname
- end
- end
- end
- else
- suffix = ""
- end
-
- @results.push({:lat => lat, :lon => lon, :zoom => zoom,
- :prefix => prefix, :name => name, :suffix => suffix,
- :description => description})
- end
-
- render :action => "results"
- rescue Exception => ex
- @error = "Error contacting gazetteer.openstreetmap.org: #{ex.to_s}"
- render :action => "error"
- end
-
def search_osm_nominatim
# get query parameters
query = params[:query]
end
# ask nominatim
- response = fetch_xml("#{NOMINATIM_URL}search?format=xml&q=#{escape_query(query)}#{viewbox}#{exclude}&accept-language=#{request.user_preferred_languages.join(',')}")
+ 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
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
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})
+ :prefix => prefix, :name => name,
+ :type => object_type, :id => object_id})
@more_params[:exclude].push(place.attributes["place_id"].to_s)
end
@results = Array.new
# ask geonames.org
- response = fetch_xml("http://ws.geonames.org/search?q=#{escape_query(query)}&maxRows=20")
+ 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|
render :action => "error"
end
- def description
- @sources = Array.new
-
- @sources.push({ :name => "osm_nominatim" })
- @sources.push({ :name => "geonames" })
- end
-
- def description_osm_namefinder
- # get query parameters
- lat = params[:lat]
- lon = params[:lon]
- types = params[:types]
- max = params[:max]
-
- # create result array
- @results = Array.new
-
- # ask OSM namefinder
- response = fetch_xml("http://gazetteer.openstreetmap.org/namefinder/search.xml?find=#{types}+near+#{lat},#{lon}&max=#{max}")
-
- # 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
- name = named.attributes["name"].to_s
- description = named.elements["description"].to_s
- distance = format_distance(place.attributes["approxdistance"].to_i)
- direction = format_direction((place.attributes["direction"].to_i - 180) % 360)
- prefix = t "geocoder.description_osm_namefinder.prefix", :distance => distance, :direction => direction, :type => type
- @results.push({:lat => lat, :lon => lon, :zoom => zoom,
- :prefix => prefix.capitalize, :name => name,
- :description => description})
- end
-
- render :action => "results"
- rescue Exception => ex
- @error = "Error contacting gazetteer.openstreetmap.org: #{ex.to_s}"
- render :action => "error"
- end
-
- def description_osm_nominatim
+ def search_osm_nominatim_reverse
# get query parameters
lat = params[:lat]
lon = params[:lon]
# create result array
@results = Array.new
- # ask OSM namefinder
- response = fetch_xml("#{NOMINATIM_URL}reverse?lat=#{lat}&lon=#{lon}&zoom=#{zoom}&accept-language=#{request.user_preferred_languages.join(',')}")
+ # 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({:prefix => "#{description}"})
+ @results.push({:lat => lat, :lon => lon,
+ :zoom => zoom,
+ :name => description,
+ :type => object_type, :id => object_id})
end
render :action => "results"
render :action => "error"
end
- def description_geonames
+ def search_geonames_reverse
# get query parameters
lat = params[:lat]
lon = params[:lon]
response.elements.each("geonames/countrySubdivision") do |geoname|
name = geoname.get_text("adminName1").to_s
country = geoname.get_text("countryName").to_s
- @results.push({:prefix => "#{name}, #{country}"})
+ @results.push({:lat => lat, :lon => lon,
+ :zoom => GEONAMES_ZOOM,
+ :name => name,
+ :suffix => ", #{country}"})
end
render :action => "results"
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
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