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[rails.git] / app / models / user.rb
index c0468f8b075f6cbae5ed43209f91738a027268fe..908ef3d517b6016287e7793661cc404462acb608 100644 (file)
@@ -1,46 +1,92 @@
-require 'digest/md5'
-
 class User < ActiveRecord::Base
+  require 'xml/libxml'
+
   has_many :traces
+  has_many :diary_entries, :order => 'created_at DESC'
+  has_many :messages, :foreign_key => :to_user_id, :order => 'sent_on DESC'
+  has_many :new_messages, :class_name => "Message", :foreign_key => :to_user_id, :conditions => "message_read = 0", :order => 'sent_on DESC'
+  has_many :friends
+  has_many :tokens, :class_name => "UserToken"
+  has_many :preferences, :class_name => "UserPreference"
 
   validates_confirmation_of :pass_crypt, :message => 'Password must match the confirmation password'
-  validates_uniqueness_of :display_name
+  validates_uniqueness_of :display_name, :allow_nil => true
   validates_uniqueness_of :email
   validates_length_of :pass_crypt, :minimum => 8
-  validates_length_of :display_name, :minimum => 3
+  validates_length_of :display_name, :minimum => 3, :allow_nil => true
   validates_format_of :email, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i
+  validates_format_of :display_name, :with => /^[^\/;.,?]*$/
+
+  before_save :encrypt_password
 
-  def set_defaults
-    self.creation_time = Time.now
-    self.timeout = Time.now
-    self.token = User.make_token()
+  def after_initialize
+    self.creation_time = Time.now if self.creation_time.nil?
   end
-  
-  def pass_crypt=(str) 
-    write_attribute("pass_crypt", Digest::MD5.hexdigest(str)) 
-  end 
 
-  def pass_crypt_confirmation=(str) 
-    write_attribute("pass_crypt_confirm", Digest::MD5.hexdigest(str)) 
-  end 
+  def encrypt_password
+    if pass_crypt_confirmation
+      self.pass_salt = OSM::make_token(8)
+      self.pass_crypt = OSM::encrypt_password(pass_crypt, pass_salt)
+    end
+  end
 
-  def self.authenticate(email, passwd) 
-    find_first([ "email = ? AND pass_crypt =?", email, Digest::MD5.hexdigest(passwd) ])
-  end 
+  def self.authenticate(options)
+    if options[:username] and options[:password]
+      user = find(:first, :conditions => ["email = ? OR display_name = ?", options[:username], options[:username]])
+      user = nil if user and user.pass_crypt != OSM::encrypt_password(options[:password], user.pass_salt)
+    elsif options[:token]
+      token = UserToken.find(:first, :include => :user, :conditions => ["user_tokens.token = ?", options[:token]])
+      user = token.user if token
+    end
+
+    if user
+      user = nil unless user.active? or options[:inactive]
+    end
+
+    token.update_attribute(:expiry, 1.week.from_now) if token and user
 
-  def self.authenticate_token(token) 
-    find_first([ "token = ? ", token])
+    return user
   end 
-  
-  def self.make_token(length=30)
-    chars = 'abcdefghijklmnopqrtuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
-    confirmstring = ''
 
-    length.times do
-      confirmstring += chars[(rand * chars.length).to_i].chr
+  def to_xml
+    doc = OSM::API.new.get_xml_doc
+    doc.root << to_xml_node()
+    return doc
+  end
+
+  def to_xml_node
+    el1 = XML::Node.new 'user'
+    el1['display_name'] = self.display_name.to_s
+    el1['account_created'] = self.creation_time.xmlschema
+    return el1
+  end
+
+  def nearby(radius = 50)
+    if self.home_lon and self.home_lat 
+      gc = OSM::GreatCircle.new(self.home_lat, self.home_lon)
+      bounds = gc.bounds(radius)
+      nearby = User.find(:all, :conditions => "home_lat between #{bounds[:minlat]} and #{bounds[:maxlat]} and home_lon between #{bounds[:minlon]} and #{bounds[:maxlon]} and data_public = 1 and id != #{self.id}")
+      nearby.delete_if { |u| gc.distance(u.home_lat, u.home_lon) > radius }
+      nearby.sort! { |u1,u2| gc.distance(u1.home_lat, u1.home_lon) <=> gc.distance(u2.home_lat, u2.home_lon) }
+    else
+      nearby = []
     end
+    return nearby
+  end
 
-    return confirmstring
+  def distance(nearby_user)
+    return OSM::GreatCircle.new(self.home_lat, self.home_lon).distance(nearby_user.home_lat, nearby_user.home_lon)
+  end
+
+  def is_friends_with?(new_friend)
+    res = false
+    @new_friend = new_friend
+    self.friends.each do |friend|
+      if friend.user_id == @new_friend.user_id
+        return true
+      end
+    end
+    return false
   end
 
 end