Require user names to be unique after unicode normalisation

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

diff --git a/app/models/user.rb b/app/models/user.rb
index 638928861bd1caed18ac837c0390b115a15b3ce6..5b48e3a68e53f4656a14e6639bfdc35b48a24f03 100644 (file)
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -34,12 +34,13 @@
 #
 # Indexes
 #
-#  users_auth_idx                (auth_provider,auth_uid) UNIQUE
-#  users_display_name_idx        (display_name) UNIQUE
-#  users_display_name_lower_idx  (lower((display_name)::text))
-#  users_email_idx               (email) UNIQUE
-#  users_email_lower_idx         (lower((email)::text))
-#  users_home_idx                (home_tile)
+#  users_auth_idx                    (auth_provider,auth_uid) UNIQUE
+#  users_display_name_canonical_idx  (lower(NORMALIZE(display_name, NFKC)))
+#  users_display_name_idx            (display_name) UNIQUE
+#  users_display_name_lower_idx      (lower((display_name)::text))
+#  users_email_idx                   (email) UNIQUE
+#  users_email_lower_idx             (lower((email)::text))
+#  users_home_idx                    (home_tile)
 #
 
 class User < ApplicationRecord
@@ -91,7 +92,7 @@ class User < ApplicationRecord
   validates :display_name, :presence => true, :length => 3..255,
                            :exclusion => %w[new terms save confirm confirm-email go_public reset-password forgot-password suspended]
   validates :display_name, :if => proc { |u| u.display_name_changed? },
-                           :uniqueness => { :case_sensitive => false }
+                           :normalized_uniqueness => { :case_sensitive => false }
   validates :display_name, :if => proc { |u| u.display_name_changed? },
                            :characters => { :url_safe => true },
                            :whitespace => { :leading => false, :trailing => false }
@@ -115,6 +116,7 @@ class User < ApplicationRecord
 
   alias_attribute :created_at, :creation_time
 
+  after_initialize :encrypt_password
   before_save :encrypt_password
   before_save :update_tile
   after_save :spam_check
@@ -128,7 +130,7 @@ class User < ApplicationRecord
       user = find_by("email = ? OR display_name = ?", options[:username].strip, options[:username])
 
       if user.nil?
-        users = where("LOWER(email) = LOWER(?) OR LOWER(display_name) = LOWER(?)", options[:username].strip, options[:username])
+        users = where("LOWER(email) = LOWER(?) OR LOWER(NORMALIZE(display_name, NFKC)) = LOWER(NORMALIZE(?, NFKC))", options[:username].strip, options[:username])
 
         user = users.first if users.count == 1
       end
@@ -290,6 +292,12 @@ class User < ApplicationRecord
     role? "administrator"
   end
 
+  ##
+  # returns true if the user has the importer role, false otherwise
+  def importer?
+    role? "importer"
+  end
+
   ##
   # returns true if the user has the requested role
   def role?(role)
@@ -376,11 +384,18 @@ class User < ApplicationRecord
     digest.hexdigest
   end
 
+  def active_reports
+    issues
+      .with_status(:open)
+      .joins(:reports)
+      .where("reports.updated_at >= COALESCE(issues.resolved_at, '1970-01-01')")
+      .count
+  end
+
   def max_messages_per_hour
     account_age_in_seconds = Time.now.utc - created_at
     account_age_in_hours = account_age_in_seconds / 3600
     recent_messages = messages.where("sent_on >= ?", Time.now.utc - 3600).count
-    active_reports = issues.with_status(:open).sum(:reports_count)
     max_messages = account_age_in_hours.ceil + recent_messages - (active_reports * 10)
     max_messages.clamp(0, Settings.max_messages_per_hour)
   end
@@ -389,7 +404,6 @@ class User < ApplicationRecord
     account_age_in_seconds = Time.now.utc - created_at
     account_age_in_hours = account_age_in_seconds / 3600
     recent_friends = Friendship.where(:befriendee => self).where("created_at >= ?", Time.now.utc - 3600).count
-    active_reports = issues.with_status(:open).sum(:reports_count)
     max_friends = account_age_in_hours.ceil + recent_friends - (active_reports * 10)
     max_friends.clamp(0, Settings.max_friends_per_hour)
   end
@@ -399,7 +413,6 @@ class User < ApplicationRecord
       Settings.moderator_changeset_comments_per_hour
     else
       previous_comments = changeset_comments.limit(200).count
-      active_reports = issues.with_status(:open).sum(:reports_count)
       max_comments = previous_comments / 200.0 * Settings.max_changeset_comments_per_hour
       max_comments = max_comments.floor.clamp(Settings.initial_changeset_comments_per_hour, Settings.max_changeset_comments_per_hour)
       max_comments /= 2**active_reports
@@ -407,6 +420,18 @@ class User < ApplicationRecord
     end
   end
 
+  def deletion_allowed_at
+    unless Settings.user_account_deletion_delay.nil?
+      last_changeset = changesets.reorder(:closed_at => :desc).first
+      return last_changeset.closed_at.utc + Settings.user_account_deletion_delay.hours if last_changeset
+    end
+    creation_time.utc
+  end
+
+  def deletion_allowed?
+    deletion_allowed_at <= Time.now.utc
+  end
+
   private
 
   def encrypt_password