Updated email hash to Gravatar specifications

Gravatar email hashes have two requirements:
* Whitespace must be trimmed
* Email should be downcased

app/models/user.rb

@@ -37,7 +37,7 @@ class User < ActiveRecord::Base
 
   after_save :update_tracked_topics
 
-  after_create :create_email_token 
+  after_create :create_email_token
 
   # Whether we need to be sending a system message after creation
   attr_accessor :send_welcome_message
@@ -46,7 +46,7 @@ class User < ActiveRecord::Base
   attr_accessor :notification_channel_position
 
   def self.username_length
-    3..15  
+    3..15
   end
 
   def self.suggest_username(name)
@@ -141,7 +141,7 @@ class User < ActiveRecord::Base
   end
 
   # Use a temporary key to find this user, store it in redis with an expiry
-  def temporary_key    
+  def temporary_key
     key = SecureRandom.hex(32)
     $redis.setex "temporary_key:#{key}", 1.week, id.to_s
     key
@@ -164,7 +164,7 @@ class User < ActiveRecord::Base
   def invited_by
     used_invite = invites.where("redeemed_at is not null").includes(:invited_by).first
     return nil unless used_invite.present?
-    used_invite.invited_by    
+    used_invite.invited_by
   end
 
   # Approve this user
@@ -176,11 +176,11 @@ class User < ActiveRecord::Base
   end
 
   def self.email_hash(email)
-    Digest::MD5.hexdigest(email) 
+    Digest::MD5.hexdigest(email.strip.downcase)
   end
 
   def email_hash
-    User.email_hash(self.email) 
+    User.email_hash(self.email)
   end
 
   def unread_notifications_by_type
@@ -200,12 +200,12 @@ class User < ActiveRecord::Base
 
   def unread_notifications
     result = 0
-    unread_notifications_by_type.each do |k,v| 
+    unread_notifications_by_type.each do |k,v|
       result += v unless k == Notification.Types[:private_message]
     end
     result
   end
-  
+
   def saw_notification_id(notification_id)
     User.update_all ["seen_notification_id = ?", notification_id], ["seen_notification_id < ?", notification_id]
   end
@@ -220,15 +220,15 @@ class User < ActiveRecord::Base
 
   # A selection of people to autocomplete on @mention
   def self.mentionable_usernames
-    User.select(:username).order('last_posted_at desc').limit(20)    
-  end  
+    User.select(:username).order('last_posted_at desc').limit(20)
+  end
 
   def regular?
     (not admin?) and (not has_trust_level?(:moderator))
   end
-  
+
   def password=(password)
-    # special case for passwordless accounts 
+    # special case for passwordless accounts
     unless password.blank?
       @raw_password = password
     end
@@ -250,9 +250,9 @@ class User < ActiveRecord::Base
 
       if self.last_seen_at.nil? || self.last_seen_at.to_date < now_date
         # count it
-        row_count = User.exec_sql('insert into user_visits(user_id,visited_at) select  :user_id, :visited_at 
+        row_count = User.exec_sql('insert into user_visits(user_id,visited_at) select  :user_id, :visited_at
                       where not exists(select 1 from user_visits where user_id = :user_id and visited_at = :visited_at)', user_id: self.id, visited_at: now.to_date)
-        if row_count.cmd_tuples == 1          
+        if row_count.cmd_tuples == 1
           User.update_all "days_visited = days_visited + 1", ["id = ? and days_visited = ?", self.id, self.days_visited]
         end
       end
@@ -291,7 +291,7 @@ class User < ActiveRecord::Base
     # Update denormalized topics_entered
     exec_sql "UPDATE users SET topics_entered = x.c
              FROM
-            (SELECT v.user_id, 
+            (SELECT v.user_id,
                     COUNT(DISTINCT parent_id) AS c
              FROM views AS v
              WHERE parent_type = 'Topic'
@@ -306,7 +306,7 @@ class User < ActiveRecord::Base
                FROM post_timings AS pt
                GROUP BY pt.user_id) AS X
                WHERE x.user_id = users.id"
-              
+
   end
 
   # The following count methods are somewhat slow - definitely don't use them in a loop.
@@ -341,7 +341,7 @@ class User < ActiveRecord::Base
 
   # Use this helper to determine if the user has a particular trust level.
   # Takes into account admin, etc.
-  def has_trust_level?(level)    
+  def has_trust_level?(level)
     raise "Invalid trust level #{level}" unless TrustLevel.Levels.has_key?(level)
 
     # Admins can do everything
@@ -370,19 +370,19 @@ class User < ActiveRecord::Base
 
         if auto_track_topics_after_msecs < 0
 
-          User.exec_sql('update topic_users set notification_level = ? 
-                         where notifications_reason_id is null and 
+          User.exec_sql('update topic_users set notification_level = ?
+                         where notifications_reason_id is null and
                            user_id = ?' , TopicUser::NotificationLevel::REGULAR , self.id)
         else
 
-          User.exec_sql('update topic_users set notification_level = ? 
-                         where notifications_reason_id is null and 
-                           user_id = ? and 
+          User.exec_sql('update topic_users set notification_level = ?
+                         where notifications_reason_id is null and
+                           user_id = ? and
                            total_msecs_viewed < ?' , TopicUser::NotificationLevel::REGULAR , self.id, auto_track_topics_after_msecs)
 
-          User.exec_sql('update topic_users set notification_level = ? 
-                         where notifications_reason_id is null and 
-                           user_id = ? and 
+          User.exec_sql('update topic_users set notification_level = ?
+                         where notifications_reason_id is null and
+                           user_id = ? and
                            total_msecs_viewed >= ?' , TopicUser::NotificationLevel::TRACKING , self.id, auto_track_topics_after_msecs)
         end
       end
@@ -396,7 +396,7 @@ class User < ActiveRecord::Base
     def ensure_password_is_hashed
       if @raw_password
         self.salt = SecureRandom.hex(16)
-        self.password_hash = hash_password(@raw_password, salt) 
+        self.password_hash = hash_password(@raw_password, salt)
       end
     end
 
@@ -404,27 +404,27 @@ class User < ActiveRecord::Base
       PBKDF2.new(:password => password, :salt => salt, :iterations => Rails.configuration.pbkdf2_iterations).hex_string
     end
 
-    def add_trust_level      
+    def add_trust_level
       self.trust_level ||= SiteSetting.default_trust_level
     rescue ActiveModel::MissingAttributeError
-      # Ignore it, safely - see http://www.tatvartha.com/2011/03/activerecordmissingattributeerror-missing-attribute-a-bug-or-a-features/  
+      # Ignore it, safely - see http://www.tatvartha.com/2011/03/activerecordmissingattributeerror-missing-attribute-a-bug-or-a-features/
     end
 
     def update_username_lower
       self.username_lower = username.downcase
     end
-   
-    def password_validator 
+
+    def password_validator
       if @raw_password
         return errors.add(:password, "must be 6 letters or longer") if @raw_password.length < 6
       end
     end
 
     def username_validator
-      unless username 
+      unless username
         return errors.add(:username, I18n.t(:'user.username.blank'))
       end
-      
+
       if username.length < User.username_length.begin
         return errors.add(:username, I18n.t(:'user.username.short', min: User.username_length.begin))
       end

spec/models/user_spec.rb

@@ -36,7 +36,7 @@ describe User do
         it "adds one to the topics entered" do
           User.update_view_counts
           user.reload
-          user.topics_entered.should == 1        
+          user.topics_entered.should == 1
         end
 
         it "won't record a second view as a different topic" do
@@ -44,9 +44,9 @@ describe User do
           User.update_view_counts
           user.reload
           user.topics_entered.should == 1
-        end      
+        end
 
-      end      
+      end
     end
 
     context 'posts_read_count' do
@@ -58,7 +58,7 @@ describe User do
 
       context 'with a post timing' do
         let!(:post) { Fabricate(:post) }
-        let!(:post_timings) do 
+        let!(:post_timings) do
           PostTiming.record_timing(msecs: 1234, topic_id: post.topic_id, user_id: user.id, post_number: post.post_number)
         end
 
@@ -116,7 +116,7 @@ describe User do
       it 'has a value for approved_at' do
         user.approved_at.should be_present
       end
-    end  
+    end
   end
 
 
@@ -126,7 +126,7 @@ describe User do
     end
 
     it "creates a bookmark with the true parameter" do
-      lambda { 
+      lambda {
         PostAction.act(@post.user, @post, PostActionType.Types[:bookmark])
       }.should change(PostAction, :count).by(1)
     end
@@ -138,7 +138,7 @@ describe User do
 
       it 'reduces the bookmark count of the post' do
         active = PostAction.where(deleted_at: nil)
-        lambda { 
+        lambda {
           PostAction.remove_act(@post.user, @post, PostActionType.Types[:bookmark])
         }.should change(active, :count).by(-1)
       end
@@ -195,10 +195,10 @@ describe User do
 
     context 'after_save' do
       before do
-        subject.save        
+        subject.save
       end
 
-      its(:email_tokens) { should be_present }      
+      its(:email_tokens) { should be_present }
       its(:bio_cooked) { should be_present }
       its(:topics_entered) { should == 0 }
       its(:posts_read_count) { should == 0 }
@@ -248,12 +248,12 @@ describe User do
       it "is a moderator if the user level is moderator" do
         user.trust_level = TrustLevel.Levels[:moderator]
         user.has_trust_level?(:moderator).should be_true
-      end      
+      end
 
       it "is a moderator if the user is an admin" do
         user.admin = true
         user.has_trust_level?(:moderator).should be_true
-      end      
+      end
 
     end
 
@@ -283,40 +283,56 @@ describe User do
 
   end
 
-  describe 'email_hash' do 
-    before do 
+  describe 'email_hash' do
+    before do
       @user = Fabricate(:user)
     end
 
-    it 'should have a sane email hash' do 
+    it 'should have a sane email hash' do
       @user.email_hash.should =~ /^[0-9a-f]{32}$/
-    end 
+    end
+
+    it 'should use downcase email' do
+      @user.email = "example@example.com"
+      @user2 = Fabricate(:user)
+      @user2.email = "ExAmPlE@eXaMpLe.com"
+
+      @user.email_hash.should == @user2.email_hash
+    end
+
+    it 'should trim whitespace before hashing' do
+      @user.email = "example@example.com"
+      @user2 = Fabricate(:user)
+      @user2.email = " example@example.com "
+
+      @user.email_hash.should == @user2.email_hash
+    end
   end
 
-  describe 'name heuristics' do 
-    it 'is able to guess a decent username from an email' do 
+  describe 'name heuristics' do
+    it 'is able to guess a decent username from an email' do
       User.suggest_username('bob@bob.com').should == 'bob'
     end
 
-    it 'is able to guess a decent name from an email' do 
+    it 'is able to guess a decent name from an email' do
       User.suggest_name('sam.saffron@gmail.com').should == 'Sam Saffron'
     end
   end
 
-  describe 'username format' do 
-    it "should always be 3 chars or longer" do 
+  describe 'username format' do
+    it "should always be 3 chars or longer" do
       @user = Fabricate.build(:user)
       @user.username = 'ss'
       @user.save.should == false
     end
 
-    it "should never end with a ." do 
+    it "should never end with a ." do
       @user = Fabricate.build(:user)
       @user.username = 'sam.'
       @user.save.should == false
     end
 
-    it "should never contain spaces" do 
+    it "should never contain spaces" do
       @user = Fabricate.build(:user)
       @user.username = 'sam s'
       @user.save.should == false
@@ -337,13 +353,13 @@ describe User do
       @user.save!
       @codinghorror = Fabricate.build(:coding_horror)
     end
-  
+
     it "should not allow saving if username is reused" do
        @codinghorror.username = @user.username
        @codinghorror.save.should be_false
     end
 
-    it "should not allow saving if username is reused in different casing" do 
+    it "should not allow saving if username is reused in different casing" do
        @codinghorror.username = @user.username.upcase
        @codinghorror.save.should be_false
     end
@@ -359,7 +375,7 @@ describe User do
     end
   end
 
-  describe '.suggest_username' do 
+  describe '.suggest_username' do
     it 'corrects weird characters' do
       User.suggest_username("Darth%^Vadar").should == "Darth_Vadar"
     end
@@ -384,7 +400,7 @@ describe User do
     it "makes room for the digit added if the username is too long" do
       User.create(username: 'myreallylongnam', email: 'fake@discourse.org')
       User.suggest_username("myreallylongnam").should == 'myreallylongna1'
-    end 
+    end
 
     it "removes leading character if it is not alphanumeric" do
       User.suggest_username("_myname").should == 'myname'
@@ -411,18 +427,18 @@ describe User do
     end
   end
 
-  describe 'passwords' do 
-    before do 
+  describe 'passwords' do
+    before do
       @user = Fabricate.build(:user)
-      @user.password = "ilovepasta" 
+      @user.password = "ilovepasta"
       @user.save!
     end
 
-    it "should have a valid password after the initial save" do 
+    it "should have a valid password after the initial save" do
       @user.confirm_password?("ilovepasta").should be_true
     end
 
-    it "should not have an active account after initial save" do 
+    it "should not have an active account after initial save" do
       @user.active.should be_false
     end
   end
@@ -509,10 +525,10 @@ describe User do
 
   end
 
-  describe "last_seen_at" do 
+  describe "last_seen_at" do
     let(:user) { Fabricate(:user) }
-    
-    it "should have a blank last seen on creation" do 
+
+    it "should have a blank last seen on creation" do
       user.last_seen_at.should be_nil
     end
 
@@ -535,11 +551,11 @@ describe User do
       it "should have 0 for days_visited" do
         user.reload
         user.days_visited.should == 1
-      end      
+      end
 
       it "should log a user_visit with the date" do
         user.user_visits.first.visited_at.should == date.to_date
-      end  
+      end
 
       context "called twice" do
 
@@ -571,7 +587,7 @@ describe User do
 
     end
 
-    
+
 
   end