Serve up paperclip attachments in a cache friendly way

[rails.git] / app / models / user.rb

diff --git a/app/models/user.rb b/app/models/user.rb
index 1261e5a181ec46886f568344d815b2ff9a1d0b24..9a230898a87779160d1038cac73b1e0ef498b2a3 100644 (file)
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,52 +1,83 @@
 class User < ActiveRecord::Base
   require 'xml/libxml'
 class User < ActiveRecord::Base
   require 'xml/libxml'

-  require 'digest/md5'

 
 

-  has_many :traces
-  has_many :diary_entries
-  has_many :messages, :foreign_key => :to_user_id
-  has_many :friends
-
-  validates_confirmation_of :pass_crypt, :message => 'Password must match the confirmation password'
-  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, :allow_nil => true
-  validates_format_of :email, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i
-
-  def set_defaults
-    self.creation_time = Time.now
-    self.timeout = Time.now
-    self.token = User.make_token()
-  end
+  has_many :traces, :conditions => { :visible => true }
+  has_many :diary_entries, :order => 'created_at DESC'
+  has_many :diary_comments, :order => 'created_at DESC'
+  has_many :messages, :foreign_key => :to_user_id, :conditions => { :to_user_visible => true }, :order => 'sent_on DESC'
+  has_many :new_messages, :class_name => "Message", :foreign_key => :to_user_id, :conditions => { :to_user_visible => true, :message_read => false }, :order => 'sent_on DESC'
+  has_many :sent_messages, :class_name => "Message", :foreign_key => :from_user_id, :conditions => { :from_user_visible => true }, :order => 'sent_on DESC'
+  has_many :friends, :include => :befriendee, :conditions => "users.status IN ('active', 'confirmed')"
+  has_many :friend_users, :through => :friends, :source => :befriendee
+  has_many :tokens, :class_name => "UserToken"
+  has_many :preferences, :class_name => "UserPreference"
+  has_many :changesets, :order => 'created_at DESC'
+
+  has_many :client_applications
+  has_many :oauth_tokens, :class_name => "OauthToken", :order => "authorized_at desc", :include => [:client_application]
+
+  has_many :active_blocks, :class_name => "UserBlock", :conditions => proc { [ "user_blocks.ends_at > :ends_at or user_blocks.needs_view", { :ends_at => Time.now.getutc } ] }
+  has_many :roles, :class_name => "UserRole"
+
+  scope :visible, where(:status => ["pending", "active", "confirmed"])
+  scope :active, where(:status => ["active", "confirmed"])
+  scope :public, where(:data_public => true)
+
+  validates_presence_of :email, :display_name
+  validates_confirmation_of :email#, :message => ' addresses must match'
+  validates_confirmation_of :pass_crypt#, :message => ' must match the confirmation password'
+  validates_uniqueness_of :display_name, :allow_nil => true, :case_sensitive => false, :if => Proc.new { |u| u.display_name_changed? }
+  validates_uniqueness_of :email, :case_sensitive => false, :if => Proc.new { |u| u.email_changed? }
+  validates_uniqueness_of :openid_url, :allow_nil => true
+  validates_length_of :pass_crypt, :within => 8..255
+  validates_length_of :display_name, :within => 3..255, :allow_nil => true
+  validates_email_format_of :email, :if => Proc.new { |u| u.email_changed? }
+  validates_email_format_of :new_email, :allow_blank => true, :if => Proc.new { |u| u.new_email_changed? }
+  validates_format_of :display_name, :with => /^[^\/;.,?]*$/, :if => Proc.new { |u| u.display_name_changed? }
+  validates_format_of :display_name, :with => /^\S/, :message => "has leading whitespace", :if => Proc.new { |u| u.display_name_changed? }
+  validates_format_of :display_name, :with => /\S$/, :message => "has trailing whitespace", :if => Proc.new { |u| u.display_name_changed? }
+  validates_numericality_of :home_lat, :allow_nil => true
+  validates_numericality_of :home_lon, :allow_nil => true
+  validates_numericality_of :home_zoom, :only_integer => true, :allow_nil => true
+  validates_inclusion_of :preferred_editor, :in => Editors::ALL_EDITORS, :allow_nil => true
+
+  after_initialize :set_creation_time
+  before_save :encrypt_password
+
+  has_attached_file :image, 
+    :default_url => "/assets/:class/:attachment/:style.png",
+    :styles => { :large => "100x100>", :small => "50x50>" }
+
+  def self.authenticate(options)
+    if options[:username] and options[:password]
+      user = where("email = ? OR display_name = ?", options[:username], options[:username]).first
+
+      if user.nil?
+        users = where("LOWER(email) = LOWER(?) OR LOWER(display_name) = LOWER(?)", options[:username], options[:username])
+
+        if users.count == 1
+          user = users.first
+        end
+      end

 
 

-  def pass_crypt=(str) 
-    write_attribute("pass_crypt", Digest::MD5.hexdigest(str)) 
-  end
+      user = nil if user and user.pass_crypt != OSM::encrypt_password(options[:password], user.pass_salt)
+    elsif options[:token]
+      token = UserToken.find_by_token(options[:token])
+      user = token.user if token
+    end

 
 

-  def pass_crypt_confirmation=(str) 
-    write_attribute("pass_crypt_confirm", Digest::MD5.hexdigest(str)) 
-  end
+    if user and
+      ( user.status == "deleted" or
+        ( user.status == "pending" and not options[:pending] ) or
+        ( user.status == "suspended" and not options[:suspended] ) )
+      user = nil
+    end

 
 

-  def self.authenticate(email, passwd) \r
-    find(:first, :conditions => [ "email = ? AND pass_crypt = ?", email, Digest::MD5.hexdigest(passwd)])\r
-  end 
+    token.update_attribute(:expiry, 1.week.from_now) if token and user

 
 

-  def self.authenticate_token(token) 
-    find(:first, :conditions => [ "token = ? ", token])
+    return user

   end 
 
   end 
 

-  def self.make_token(length=30)
-    chars = 'abcdefghijklmnopqrtuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
-    confirmstring = ''
-
-    length.times do
-      confirmstring += chars[(rand * chars.length).to_i].chr
-    end
-
-    return confirmstring
-  end
-

   def to_xml
     doc = OSM::API.new.get_xml_doc
     doc.root << to_xml_node()
   def to_xml
     doc = OSM::API.new.get_xml_doc
     doc.root << to_xml_node()


@@ -57,45 +88,143 @@ class User < ActiveRecord::Base
     el1 = XML::Node.new 'user'
     el1['display_name'] = self.display_name.to_s
     el1['account_created'] = self.creation_time.xmlschema
     el1 = XML::Node.new 'user'
     el1['display_name'] = self.display_name.to_s
     el1['account_created'] = self.creation_time.xmlschema

+    if self.home_lat and self.home_lon
+      home = XML::Node.new 'home'
+      home['lat'] = self.home_lat.to_s
+      home['lon'] = self.home_lon.to_s
+      home['zoom'] = self.home_zoom.to_s
+      el1 << home
+    end

     return el1
   end
 
     return el1
   end
 

-  def nearby(lat_range=1, lon_range=1)
-      if self.home_lon and self.home_lat 
-          nearby = User.find(:all,  :conditions => "#{self.home_lon} > home_lon - #{lon_range} and #{self.home_lon} < home_lon + #{lon_range} and  #{self.home_lon} > home_lon - #{lon_range} and #{self.home_lon} < home_lon + #{lon_range} and data_public = 1 and id != #{self.id}") 
-      else
-          nearby = []
-      end
-      return nearby
+  def languages
+    attribute_present?(:languages) ? read_attribute(:languages).split(/ *, */) : []

   end
 
   end
 

-  def self.has_messages?
-    if Message.fdhjklsafind_by_to_user_id(self.id) 
-      return true
-    else
-      return false
-    end
+  def languages=(languages)
+    write_attribute(:languages, languages.join(","))

   end
 
   end
 

-  def get_new_messages
-    messages = Message.find(:all, :conditions => "message_read = 0")
-    return messages
+  def preferred_language
+    languages.find { |l| Language.exists?(:code => l) }
+  end
+
+  def preferred_language_from(array)
+    (languages & array.collect { |i| i.to_s }).first
+  end
+
+  def nearby(radius = NEARBY_RADIUS, num = NEARBY_USERS)
+    if self.home_lon and self.home_lat 
+      gc = OSM::GreatCircle.new(self.home_lat, self.home_lon)
+      bounds = gc.bounds(radius)
+      sql_for_distance = gc.sql_for_distance("home_lat", "home_lon")
+      nearby = User.where("id != ? AND status IN (\'active\', \'confirmed\') AND data_public = ? AND #{sql_for_distance} <= ?", id, true, radius).order(sql_for_distance).limit(num)
+    else
+      nearby = []
+    end
+    return nearby

   end
 
   end
 

-  def get_all_messages
-    messages = Message.find(:all, :conditions => "message_read = 0")
-    return messages
+  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|
   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
+      if friend.friend_user_id == @new_friend.id

         return true
       end
     end
     return false
   end
 
         return true
       end
     end
     return false
   end
 

+  ##
+  # returns true if a user is visible
+  def visible?
+    ["pending","active","confirmed"].include? self.status
+  end
+
+  ##
+  # returns true if a user is active
+  def active?
+    ["active","confirmed"].include? self.status
+  end
+
+  ##
+  # returns true if the user has the moderator role, false otherwise
+  def moderator?
+    has_role? 'moderator'
+  end
+
+  ##
+  # returns true if the user has the administrator role, false otherwise
+  def administrator?
+    has_role? 'administrator'
+  end
+
+  ##
+  # returns true if the user has the requested role
+  def has_role?(role)
+    roles.any? { |r| r.role == role }
+  end
+
+  ##
+  # returns the first active block which would require users to view 
+  # a message, or nil if there are none.
+  def blocked_on_view
+    active_blocks.detect { |b| b.needs_view? }
+  end
+
+  ##
+  # delete a user - leave the account but purge most personal data
+  def delete
+    self.display_name = "user_#{self.id}"
+    self.description = ""
+    self.home_lat = nil
+    self.home_lon = nil
+    self.image = nil
+    self.email_valid = false
+    self.new_email = nil
+    self.status = "deleted"
+    self.save
+  end
+
+  ##
+  # return a spam score for a user
+  def spam_score
+    changeset_score = self.changesets.limit(10).length * 50
+    trace_score = self.traces.limit(10).length * 50
+    diary_entry_score = self.diary_entries.inject(0) { |s,e| s += OSM.spam_score(e.body) }
+    diary_comment_score = self.diary_comments.inject(0) { |s,e| s += OSM.spam_score(e.body) }
+
+    score = OSM.spam_score(self.description)
+    score += diary_entry_score / self.diary_entries.length if self.diary_entries.length > 0
+    score += diary_comment_score / self.diary_comments.length if self.diary_comments.length > 0
+    score -= changeset_score
+    score -= trace_score
+
+    return score.to_i
+  end
+
+  ##
+  # return an oauth access token for a specified application
+  def access_token(application_key)
+    return ClientApplication.find_by_key(application_key).access_token_for_user(self)
+  end
+
+private
+
+  def set_creation_time
+    self.creation_time = Time.now.getutc unless self.attribute_present?(:creation_time)
+  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

 end
 end