536 lines
15 KiB
Ruby
536 lines
15 KiB
Ruby
require_dependency 'email_token'
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require_dependency 'trust_level'
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class User < ActiveRecord::Base
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attr_accessible :name, :username, :password, :email, :bio_raw, :website
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has_many :posts
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has_many :notifications
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has_many :topic_users
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has_many :topics
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has_many :user_open_ids
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has_many :user_actions
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has_many :post_actions
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has_many :email_logs
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has_many :post_timings
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has_many :topic_allowed_users
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has_many :topics_allowed, through: :topic_allowed_users, source: :topic
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has_many :email_tokens
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has_many :views
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has_many :user_visits
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has_many :invites
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has_one :twitter_user_info
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has_one :github_user_info
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belongs_to :approved_by, class_name: 'User'
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validates_presence_of :username
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validates_presence_of :email
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validates_uniqueness_of :email
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validate :username_validator
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validate :email_validator, if: :email_changed?
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validate :password_validator
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before_save :cook
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before_save :update_username_lower
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before_save :ensure_password_is_hashed
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after_initialize :add_trust_level
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after_save :update_tracked_topics
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after_create :create_email_token
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# Whether we need to be sending a system message after creation
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attr_accessor :send_welcome_message
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# This is just used to pass some information into the serializer
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attr_accessor :notification_channel_position
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module NewTopicDuration
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ALWAYS = -1
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LAST_VISIT = -2
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end
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def self.username_length
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3..15
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end
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def self.suggest_username(name)
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return nil unless name.present?
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# If it's an email
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if name =~ /([^@]+)@([^\.]+)/
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name = Regexp.last_match[1]
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# Special case, if it's "me" or "i" @ something, take the something.
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name = Regexp.last_match[2] if ['i', 'me'].include?(name)
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end
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name.gsub!(/^[^A-Za-z0-9]+/, "")
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name.gsub!(/[^A-Za-z0-9_]+$/, "")
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name.gsub!(/[^A-Za-z0-9_]+/, "_")
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# Pad the length with 1s
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missing_chars = User.username_length.begin - name.length
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name << ('1' * missing_chars) if missing_chars > 0
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# Trim extra length
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name = name[0..User.username_length.end-1]
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i = 1
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attempt = name
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while !username_available?(attempt)
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suffix = i.to_s
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max_length = User.username_length.end - suffix.length - 1
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attempt = "#{name[0..max_length]}#{suffix}"
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i += 1
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end
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attempt
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end
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def self.create_for_email(email, opts={})
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username = suggest_username(email)
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if SiteSetting.call_discourse_hub?
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begin
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match, available, suggestion = DiscourseHub.nickname_match?(username, email)
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username = suggestion unless match || available
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rescue => e
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Rails.logger.error e.message + "\n" + e.backtrace.join("\n")
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end
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end
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user = User.new(email: email, username: username, name: username)
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user.trust_level = opts[:trust_level] if opts[:trust_level].present?
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user.save!
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if SiteSetting.call_discourse_hub?
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begin
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DiscourseHub.register_nickname(username, email)
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rescue => e
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Rails.logger.error e.message + "\n" + e.backtrace.join("\n")
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end
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end
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user
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end
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def self.username_available?(username)
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lower = username.downcase
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User.where(username_lower: lower).blank?
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end
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def self.username_valid?(username)
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u = User.new(username: username)
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u.username_format_validator
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u.errors[:username].blank?
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end
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def enqueue_welcome_message(message_type)
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return unless SiteSetting.send_welcome_message?
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Jobs.enqueue(:send_system_message, user_id: id, message_type: message_type)
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end
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def self.suggest_name(email)
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return "" unless email
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name = email.split(/[@\+]/)[0]
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name = name.gsub(".", " ")
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name.titleize
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end
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def change_username(new_username)
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current_username, self.username = username, new_username
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if SiteSetting.call_discourse_hub? && valid?
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begin
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DiscourseHub.change_nickname(current_username, new_username)
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rescue DiscourseHub::NicknameUnavailable
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false
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rescue => e
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Rails.logger.error e.message + "\n" + e.backtrace.join("\n")
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end
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end
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save
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end
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# Use a temporary key to find this user, store it in redis with an expiry
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def temporary_key
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key = SecureRandom.hex(32)
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$redis.setex "temporary_key:#{key}", 1.week, id.to_s
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key
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end
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# Find a user by temporary key, nil if not found or key is invalid
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def self.find_by_temporary_key(key)
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user_id = $redis.get("temporary_key:#{key}")
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if user_id.present?
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where(id: user_id.to_i).first
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end
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end
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def self.find_by_username_or_email(username_or_email)
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where("username_lower = :user or lower(username) = :user or lower(email) = :user or lower(name) = :user", user: username_or_email.downcase)
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end
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# tricky, we need our bus to be subscribed from the right spot
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def sync_notification_channel_position
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@unread_notifications_by_type = nil
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self.notification_channel_position = MessageBus.last_id("/notification/#{id}")
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end
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def invited_by
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used_invite = invites.where("redeemed_at is not null").includes(:invited_by).first
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used_invite.try(:invited_by)
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end
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# Approve this user
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def approve(approved_by)
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self.approved = true
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self.approved_by = approved_by
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self.approved_at = Time.now
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enqueue_welcome_message('welcome_approved') if save
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end
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def self.email_hash(email)
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Digest::MD5.hexdigest(email.strip.downcase)
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end
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def email_hash
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User.email_hash(email)
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end
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def unread_notifications_by_type
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@unread_notifications_by_type ||= notifications.where("id > ? and read = false", seen_notification_id).group(:notification_type).count
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end
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def reload
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@unread_notifications_by_type = nil
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super
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end
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def unread_private_messages
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unread_notifications_by_type[Notification.Types[:private_message]] || 0
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end
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def unread_notifications
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unread_notifications_by_type.except(Notification.Types[:private_message]).values.sum
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end
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def saw_notification_id(notification_id)
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User.update_all ["seen_notification_id = ?", notification_id], ["seen_notification_id < ?", notification_id]
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end
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def publish_notifications_state
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MessageBus.publish("/notification/#{id}",
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{ unread_notifications: unread_notifications,
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unread_private_messages: unread_private_messages },
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user_ids: [id] # only publish the notification to this user
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)
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end
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# A selection of people to autocomplete on @mention
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def self.mentionable_usernames
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User.select(:username).order('last_posted_at desc').limit(20)
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end
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def moderator?
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has_trust_level?(:moderator)
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end
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def regular?
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!(admin? || moderator?)
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end
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def password=(password)
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# special case for passwordless accounts
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@raw_password = password unless password.blank?
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end
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# Indicate that this is NOT a passwordless account for the purposes of validation
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def password_required!
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@password_required = true
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end
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def confirm_password?(password)
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return false unless password_hash && salt
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self.password_hash == hash_password(password, salt)
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end
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def seen?(date)
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last_seen_at.to_date >= date if last_seen_at.present?
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end
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def seen_before?
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last_seen_at.present?
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end
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def has_visit_record?(date)
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user_visits.where(["visited_at =? ", date]).first
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end
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def adding_visit_record(date)
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user_visits.create!(visited_at: date)
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end
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def update_visit_record!(date)
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unless seen_before?
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adding_visit_record(date)
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update_column(:days_visited, 1)
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end
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unless seen?(date) || has_visit_record?(date)
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adding_visit_record(date)
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User.increment_counter(:days_visited, 1)
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end
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end
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def update_ip_address!(new_ip_address)
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unless ip_address == new_ip_address && new_ip_address.blank?
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update_column(:ip_address, new_ip_address)
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end
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end
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def update_last_seen!
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now = DateTime.now
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now_date = now.to_date
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# Only update last seen once every minute
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redis_key = "user:#{self.id}:#{now_date.to_s}"
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if $redis.setnx(redis_key, "1")
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$redis.expire(redis_key, SiteSetting.active_user_rate_limit_secs)
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update_visit_record!(now_date)
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# using update_column to avoid the AR transaction
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# Keep track of our last visit
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if seen_before? && (self.last_seen_at < (now - SiteSetting.previous_visit_timeout_hours.hours))
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previous_visit_at = last_seen_at
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update_column(:previous_visit_at, previous_visit_at)
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end
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update_column(:last_seen_at, now)
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end
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end
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def self.avatar_template(email)
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email_hash = self.email_hash(email)
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# robohash was possibly causing caching issues
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# robohash = CGI.escape("http://robohash.org/size_") << "{size}x{size}" << CGI.escape("/#{email_hash}.png")
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"http://www.gravatar.com/avatar/#{email_hash}.png?s={size}&r=pg&d=identicon"
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end
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# return null for local avatars, a template for gravatar
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def avatar_template
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User.avatar_template(email)
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end
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# Updates the denormalized view counts for all users
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def self.update_view_counts
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# Update denormalized topics_entered
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exec_sql "UPDATE users SET topics_entered = x.c
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FROM
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(SELECT v.user_id,
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COUNT(DISTINCT parent_id) AS c
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FROM views AS v
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WHERE parent_type = 'Topic'
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GROUP BY v.user_id) AS X
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WHERE x.user_id = users.id"
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# Update denormalzied posts_read_count
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exec_sql "UPDATE users SET posts_read_count = x.c
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FROM
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(SELECT pt.user_id,
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COUNT(*) AS c
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FROM post_timings AS pt
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GROUP BY pt.user_id) AS X
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WHERE x.user_id = users.id"
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end
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# The following count methods are somewhat slow - definitely don't use them in a loop.
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# They might need to be denormialzied
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def like_count
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UserAction.where(user_id: id, action_type: UserAction::WAS_LIKED).count
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end
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def post_count
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posts.count
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end
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def flags_given_count
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PostAction.where(user_id: id, post_action_type_id: PostActionType.FlagTypes).count
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end
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def flags_received_count
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posts.includes(:post_actions).where('post_actions.post_action_type_id in (?)', PostActionType.FlagTypes).count
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end
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def private_topics_count
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topics_allowed.where(archetype: Archetype.private_message).count
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end
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def bio_excerpt
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PrettyText.excerpt(bio_cooked, 350)
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end
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def delete_all_posts!(guardian)
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raise Discourse::InvalidAccess unless guardian.can_delete_all_posts? self
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posts.order("post_number desc").each do |p|
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if p.post_number == 1
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p.topic.destroy
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else
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p.destroy
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end
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end
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end
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def is_banned?
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banned_till && banned_till > DateTime.now
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end
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# Use this helper to determine if the user has a particular trust level.
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# Takes into account admin, etc.
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def has_trust_level?(level)
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raise "Invalid trust level #{level}" unless TrustLevel.valid_level?(level)
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admin? || TrustLevel.compare(trust_level, level)
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end
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def change_trust_level(level)
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raise "Invalid trust level #{level}" unless TrustLevel.valid_level?(level)
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self.trust_level = TrustLevel.Levels[level]
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end
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def guardian
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Guardian.new(self)
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end
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def username_format_validator
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validator = UsernameValidator.new(username)
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unless validator.valid_format?
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validator.errors.each { |e| errors.add(:username, e) }
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end
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end
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def email_confirmed?
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email_tokens.where(email: email, confirmed: true).present? || email_tokens.empty?
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end
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def treat_as_new_topic_start_date
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duration = new_topic_duration_minutes || SiteSetting.new_topic_duration_minutes
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case duration
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when User::NewTopicDuration::ALWAYS
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created_at
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when User::NewTopicDuration::LAST_VISIT
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previous_visit_at || created_at
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else
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duration.minutes.ago
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end
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end
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MAX_TIME_READ_DIFF = 100
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# attempt to add total read time to user based on previous time this was called
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def update_time_read!
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last_seen_key = "user-last-seen:#{id}"
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last_seen = $redis.get(last_seen_key)
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if last_seen.present?
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diff = (Time.now.to_f - last_seen.to_f).round
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if diff > 0 && diff < MAX_TIME_READ_DIFF
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User.update_all ["time_read = time_read + ?", diff], ["id = ? and time_read = ?", id, time_read]
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end
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end
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$redis.set(last_seen_key, Time.now.to_f)
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end
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def readable_name
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if name.present? && name != username
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"#{name} (#{username})"
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else
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username
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end
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end
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protected
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def cook
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if bio_raw.present?
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self.bio_cooked = PrettyText.cook(bio_raw) if bio_raw_changed?
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else
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self.bio_cooked = nil
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end
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end
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def update_tracked_topics
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if auto_track_topics_after_msecs_changed?
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if auto_track_topics_after_msecs < 0
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User.exec_sql('update topic_users set notification_level = ?
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where notifications_reason_id is null and
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user_id = ?' , TopicUser::NotificationLevel::REGULAR , id)
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else
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User.exec_sql('update topic_users set notification_level = ?
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where notifications_reason_id is null and
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user_id = ? and
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total_msecs_viewed < ?' , TopicUser::NotificationLevel::REGULAR , id, auto_track_topics_after_msecs)
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User.exec_sql('update topic_users set notification_level = ?
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where notifications_reason_id is null and
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user_id = ? and
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total_msecs_viewed >= ?' , TopicUser::NotificationLevel::TRACKING , id, auto_track_topics_after_msecs)
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end
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end
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end
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def create_email_token
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email_tokens.create(email: email)
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end
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def ensure_password_is_hashed
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if @raw_password
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self.salt = SecureRandom.hex(16)
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self.password_hash = hash_password(@raw_password, salt)
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end
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end
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def hash_password(password, salt)
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PBKDF2.new(password: password, salt: salt, iterations: Rails.configuration.pbkdf2_iterations).hex_string
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end
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def add_trust_level
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self.trust_level ||= SiteSetting.default_trust_level
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rescue ActiveModel::MissingAttributeError
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# Ignore it, safely - see http://www.tatvartha.com/2011/03/activerecordmissingattributeerror-missing-attribute-a-bug-or-a-features/
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end
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def update_username_lower
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self.username_lower = username.downcase
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end
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def username_validator
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username_format_validator || begin
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lower = username.downcase
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if username_changed? && User.where(username_lower: lower).exists?
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errors.add(:username, I18n.t(:'user.username.unique'))
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end
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end
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end
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def email_validator
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if (setting = SiteSetting.email_domains_blacklist).present?
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domains = setting.gsub('.', '\.')
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regexp = Regexp.new("@(#{domains})", true)
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if self.email =~ regexp
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errors.add(:email, I18n.t(:'user.email.not_allowed'))
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end
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end
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end
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def password_validator
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if (@raw_password and @raw_password.length < 6) || (@password_required && !@raw_password)
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errors.add(:password, "must be 6 letters or longer")
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end
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end
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end
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