X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/3244635aa11878135a014cf2c9ec9177f8e9d0ba..ec172871aea87ad57360c973b59c56a055d33eb3:/app/helpers/application_helper.rb

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index bee4f9ce2..c5df67675 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1,6 +1,20 @@
 module ApplicationHelper
+  require 'rexml/document'
+
   def htmlize(text)
-    return sanitize(auto_link(simple_format(text), :urls))
+    return linkify(sanitize(simple_format(text)))
+  end
+
+  def linkify(text)
+    return auto_link(text, :link => :urls, :html => { :rel => "nofollow" })
+  end
+
+  def html_escape_unicode(text)
+    chars = ActiveSupport::Multibyte::Chars.u_unpack(text).map do |c|
+      c < 127 ? c.chr : "&##{c.to_s};"
+    end
+
+    return chars.join("")
   end
 
   def rss_link_to(*args)
@@ -22,6 +36,19 @@ module ApplicationHelper
     return js
   end
 
+  def describe_location(lat, lon, zoom = nil, language = nil)
+    zoom = zoom || 14
+    language = language || request.user_preferred_languages.join(',')
+    url = "http://nominatim.openstreetmap.org/reverse?lat=#{lat}&lon=#{lon}&zoom=#{zoom}&accept-language=#{language}"
+    response = REXML::Document.new(Net::HTTP.get(URI.parse(url)))
+
+    if result = response.get_text("reversegeocode/result")
+      result.to_s
+    else
+      "#{number_with_precision(lat, :precision => 3)}, #{number_with_precision(lon, :precision => 3)}"
+    end
+  end
+
 private
 
   def javascript_strings_for_key(key)