X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/deb3c74fc7e527098e206af342d27010617968f2..60d8673e3027ea672f50bb12873a440d46195ff3:/lib/osm.rb

diff --git a/lib/osm.rb b/lib/osm.rb
index 5f31e31bf..45c506e2e 100644
--- a/lib/osm.rb
+++ b/lib/osm.rb
@@ -12,6 +12,7 @@ module OSM
   require 'rexml/parsers/sax2parser'
   require 'rexml/text'
   require 'xml/libxml'
+  require 'digest/md5'
   require 'RMagick'
 
   class Mercator
@@ -295,7 +296,7 @@ module OSM
       image = XML::Node.new 'image'
       @channel << image
       url = XML::Node.new 'url'
-      url << 'http://www.openstreetmap.org/feeds/mag_map-rss2.0.png'
+      url << 'http://www.openstreetmap.org/images/mag_map-rss2.0.png'
       image << url
       title = XML::Node.new 'title'
       title << "OpenStreetMap"
@@ -391,4 +392,33 @@ module OSM
   rescue Exception
     return nil
   end
+
+  # Construct a random token of a given length
+  def self.make_token(length = 30)
+    chars = 'abcdefghijklmnopqrtuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
+    token = ''
+
+    length.times do
+      token += chars[(rand * chars.length).to_i].chr
+    end
+
+    return token
+  end
+
+  # Return an encrypted version of a password
+  def self.encrypt_password(password, salt)
+    return Digest::MD5.hexdigest(password) if salt.nil?
+    return Digest::MD5.hexdigest(salt + password)
+  end
+
+  # Return an SQL fragment to select a given area of the globe
+  def self.sql_for_area(minlat, minlon, maxlat, maxlon, prefix = nil)
+    tilesql = QuadTile.sql_for_area(minlat, minlon, maxlat, maxlon, prefix)
+    minlat = (minlat * 10000000).round
+    minlon = (minlon * 10000000).round
+    maxlat = (maxlat * 10000000).round
+    maxlon = (maxlon * 10000000).round
+
+    return "#{tilesql} AND #{prefix}latitude BETWEEN #{minlat} AND #{maxlat} AND #{prefix}longitude BETWEEN #{minlon} AND #{maxlon}"
+  end
 end