+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
require 'can_be_an_owner'
+require 'refresh_permission_view'
class User < ArvadosModel
include HasUuid
include KindAndEtag
include CommonApiTemplate
include CanBeAnOwner
+ extend CurrentApiClient
serialize :prefs, Hash
has_many :api_client_authorizations
validates(:username,
format: {
- with: /^[A-Za-z][A-Za-z0-9]*$/,
+ with: /\A[A-Za-z][A-Za-z0-9]*\z/,
message: "must begin with a letter and contain only alphanumerics",
},
uniqueness: true,
allow_nil: true)
+ validate :must_unsetup_to_deactivate
before_update :prevent_privilege_escalation
before_update :prevent_inactive_admin
before_update :verify_repositories_empty, :if => Proc.new { |user|
user.username.nil? and user.username_changed?
}
+ before_update :setup_on_activate
before_create :check_auto_admin
before_create :set_initial_username, :if => Proc.new { |user|
user.username.nil? and user.email
}
+ after_create :setup_on_activate
after_create :add_system_group_permission_link
+ after_create :invalidate_permissions_cache
after_create :auto_setup_new_user, :if => Proc.new { |user|
- Rails.configuration.auto_setup_new_users and
+ Rails.configuration.Users.AutoSetupNewUsers and
(user.uuid != system_user_uuid) and
(user.uuid != anonymous_user_uuid)
}
has_many :authorized_keys, :foreign_key => :authorized_user_uuid, :primary_key => :uuid
has_many :repositories, foreign_key: :owner_uuid, primary_key: :uuid
+ default_scope { where('redirect_to_user_uuid is null') }
+
api_accessible :user, extend: :common do |t|
t.add :email
t.add :username
ALL_PERMISSIONS = {read: true, write: true, manage: true}
+ # Map numeric permission levels (see lib/create_permission_view.sql)
+ # back to read/write/manage flags.
+ PERMS_FOR_VAL =
+ [{},
+ {read: true},
+ {read: true, write: true},
+ {read: true, write: true, manage: true}]
+
def full_name
"#{first_name} #{last_name}".strip
end
def is_invited
!!(self.is_active ||
- Rails.configuration.new_users_are_active ||
- self.groups_i_can(:read).select { |x| x.match /-f+$/ }.first)
+ Rails.configuration.Users.NewUsersAreActive ||
+ self.groups_i_can(:read).select { |x| x.match(/-f+$/) }.first)
end
def groups_i_can(verb)
true
end
- def self.invalidate_permissions_cache(timestamp=nil)
- if Rails.configuration.async_permissions_update
- timestamp = DbCurrentTime::db_current_time.to_i if timestamp.nil?
- connection.execute "NOTIFY invalidate_permissions_cache, '#{timestamp}'"
- else
- Rails.cache.delete_matched(/^groups_for_user_/)
- end
+ def self.invalidate_permissions_cache(async=false)
+ refresh_permission_view(async)
end
- # Return a hash of {group_uuid: perm_hash} where perm_hash[:read]
- # and perm_hash[:write] are true if this user can read and write
- # objects owned by group_uuid.
- #
- # The permission graph is built by repeatedly enumerating all
- # permission links reachable from self.uuid, and then calling
- # search_permissions
- def calculate_group_permissions
- permissions_from = {}
- todo = {self.uuid => true}
- done = {}
- # Build the equivalence class of permissions starting with
- # self.uuid. On each iteration of this loop, todo contains
- # the next set of uuids in the permission equivalence class
- # to evaluate.
- while !todo.empty?
- lookup_uuids = todo.keys
- lookup_uuids.each do |uuid| done[uuid] = true end
- todo = {}
- newgroups = []
- # include all groups owned by the current set of uuids.
- Group.where('owner_uuid in (?)', lookup_uuids).each do |group|
- newgroups << [group.owner_uuid, group.uuid, 'can_manage']
- end
- # add any permission links from the current lookup_uuids to a Group.
- Link.where('link_class = ? and tail_uuid in (?) and ' \
- '(head_uuid like ? or (name = ? and head_uuid like ?))',
- 'permission',
- lookup_uuids,
- Group.uuid_like_pattern,
- 'can_manage',
- User.uuid_like_pattern).each do |link|
- newgroups << [link.tail_uuid, link.head_uuid, link.name]
- end
- newgroups.each do |tail_uuid, head_uuid, perm_name|
- unless done.has_key? head_uuid
- todo[head_uuid] = true
- end
- link_permissions = {}
- case perm_name
- when 'can_read'
- link_permissions = {read:true}
- when 'can_write'
- link_permissions = {read:true,write:true}
- when 'can_manage'
- link_permissions = ALL_PERMISSIONS
- end
- permissions_from[tail_uuid] ||= {}
- permissions_from[tail_uuid][head_uuid] ||= {}
- link_permissions.each do |k,v|
- permissions_from[tail_uuid][head_uuid][k] ||= v
- end
- end
- end
- perms = search_permissions(self.uuid, permissions_from)
- Rails.cache.write "groups_for_user_#{self.uuid}", perms
- perms
+ def invalidate_permissions_cache
+ User.invalidate_permissions_cache
+ end
+
+ # Return a hash of {user_uuid: group_perms}
+ def self.all_group_permissions
+ all_perms = {}
+ ActiveRecord::Base.connection.
+ exec_query("SELECT user_uuid, target_owner_uuid, perm_level, trashed
+ FROM #{PERMISSION_VIEW}
+ WHERE target_owner_uuid IS NOT NULL",
+ # "name" arg is a query label that appears in logs:
+ "all_group_permissions",
+ ).rows.each do |user_uuid, group_uuid, max_p_val, trashed|
+ all_perms[user_uuid] ||= {}
+ all_perms[user_uuid][group_uuid] = PERMS_FOR_VAL[max_p_val.to_i]
+ end
+ all_perms
end
# Return a hash of {group_uuid: perm_hash} where perm_hash[:read]
# and perm_hash[:write] are true if this user can read and write
# objects owned by group_uuid.
def group_permissions
- r = Rails.cache.read "groups_for_user_#{self.uuid}"
- if r.nil?
- if Rails.configuration.async_permissions_update
- while r.nil?
- sleep(0.1)
- r = Rails.cache.read "groups_for_user_#{self.uuid}"
- end
- else
- r = calculate_group_permissions
- end
+ group_perms = {self.uuid => {:read => true, :write => true, :manage => true}}
+ ActiveRecord::Base.connection.
+ exec_query("SELECT target_owner_uuid, perm_level, trashed
+ FROM #{PERMISSION_VIEW}
+ WHERE user_uuid = $1
+ AND target_owner_uuid IS NOT NULL",
+ # "name" arg is a query label that appears in logs:
+ "group_permissions for #{uuid}",
+ # "binds" arg is an array of [col_id, value] for '$1' vars:
+ [[nil, uuid]],
+ ).rows.each do |group_uuid, max_p_val, trashed|
+ group_perms[group_uuid] = PERMS_FOR_VAL[max_p_val.to_i]
end
- r
- end
-
- def self.setup(user, openid_prefix, repo_name=nil, vm_uuid=nil)
- return user.setup_repo_vm_links(repo_name, vm_uuid, openid_prefix)
+ group_perms
end
# create links
- def setup_repo_vm_links(repo_name, vm_uuid, openid_prefix)
- oid_login_perm = create_oid_login_perm openid_prefix
+ def setup(repo_name: nil, vm_uuid: nil)
repo_perm = create_user_repo_link repo_name
- vm_login_perm = create_vm_login_permission_link vm_uuid, username
+ vm_login_perm = create_vm_login_permission_link(vm_uuid, username) if vm_uuid
group_perm = create_user_group_link
- return [oid_login_perm, repo_perm, vm_login_perm, group_perm, self].compact
+ return [repo_perm, vm_login_perm, group_perm, self].compact
end
# delete user signatures, login, repo, and vm perms, and mark as inactive
def unsetup
# delete oid_login_perms for this user
- Link.destroy_all(tail_uuid: self.email,
+ #
+ # note: these permission links are obsolete, they have no effect
+ # on anything and they are not created for new users.
+ Link.where(tail_uuid: self.email,
link_class: 'permission',
- name: 'can_login')
+ name: 'can_login').destroy_all
# delete repo_perms for this user
- Link.destroy_all(tail_uuid: self.uuid,
+ Link.where(tail_uuid: self.uuid,
link_class: 'permission',
- name: 'can_manage')
+ name: 'can_manage').destroy_all
# delete vm_login_perms for this user
- Link.destroy_all(tail_uuid: self.uuid,
+ Link.where(tail_uuid: self.uuid,
link_class: 'permission',
- name: 'can_login')
+ name: 'can_login').destroy_all
# delete "All users" group read permissions for this user
group = Group.where(name: 'All users').select do |g|
- g[:uuid].match /-f+$/
+ g[:uuid].match(/-f+$/)
end.first
- Link.destroy_all(tail_uuid: self.uuid,
+ Link.where(tail_uuid: self.uuid,
head_uuid: group[:uuid],
link_class: 'permission',
- name: 'can_read')
+ name: 'can_read').destroy_all
# delete any signatures by this user
- Link.destroy_all(link_class: 'signature',
- tail_uuid: self.uuid)
+ Link.where(link_class: 'signature',
+ tail_uuid: self.uuid).destroy_all
# delete user preferences (including profile)
self.prefs = {}
self.save!
end
+ def must_unsetup_to_deactivate
+ if self.is_active_changed? &&
+ self.is_active_was == true &&
+ !self.is_active
+
+ group = Group.where(name: 'All users').select do |g|
+ g[:uuid].match(/-f+$/)
+ end.first
+
+ # When a user is set up, they are added to the "All users"
+ # group. A user that is part of the "All users" group is
+ # allowed to self-activate.
+ #
+ # It doesn't make sense to deactivate a user (set is_active =
+ # false) without first removing them from the "All users" group,
+ # because they would be able to immediately reactivate
+ # themselves.
+ #
+ # The 'unsetup' method removes the user from the "All users"
+ # group (and also sets is_active = false) so send a message
+ # explaining the correct way to deactivate a user.
+ #
+ if Link.where(tail_uuid: self.uuid,
+ head_uuid: group[:uuid],
+ link_class: 'permission',
+ name: 'can_read').any?
+ errors.add :is_active, "cannot be set to false directly, use the 'Deactivate' button on Workbench, or the 'unsetup' API call"
+ end
+ end
+ end
+
+ def set_initial_username(requested: false)
+ if !requested.is_a?(String) || requested.empty?
+ email_parts = email.partition("@")
+ local_parts = email_parts.first.partition("+")
+ if email_parts.any?(&:empty?)
+ return
+ elsif not local_parts.first.empty?
+ requested = local_parts.first
+ else
+ requested = email_parts.first
+ end
+ end
+ requested.sub!(/^[^A-Za-z]+/, "")
+ requested.gsub!(/[^A-Za-z0-9]/, "")
+ unless requested.empty?
+ self.username = find_usable_username_from(requested)
+ end
+ end
+
+ def update_uuid(new_uuid:)
+ if !current_user.andand.is_admin
+ raise PermissionDeniedError
+ end
+ if uuid == system_user_uuid || uuid == anonymous_user_uuid
+ raise "update_uuid cannot update system accounts"
+ end
+ if self.class != self.class.resource_class_for_uuid(new_uuid)
+ raise "invalid new_uuid #{new_uuid.inspect}"
+ end
+ transaction(requires_new: true) do
+ reload
+ old_uuid = self.uuid
+ self.uuid = new_uuid
+ save!(validate: false)
+ change_all_uuid_refs(old_uuid: old_uuid, new_uuid: new_uuid)
+ end
+ end
+
+ # Move this user's (i.e., self's) owned items to new_owner_uuid and
+ # new_user_uuid (for things normally owned directly by the user).
+ #
+ # If redirect_auth is true, also reassign auth tokens and ssh keys,
+ # and redirect this account to redirect_to_user_uuid, i.e., when a
+ # caller authenticates to this account in the future, the account
+ # redirect_to_user_uuid account will be used instead.
+ #
+ # current_user must have admin privileges, i.e., the caller is
+ # responsible for checking permission to do this.
+ def merge(new_owner_uuid:, new_user_uuid:, redirect_to_new_user:)
+ raise PermissionDeniedError if !current_user.andand.is_admin
+ raise "Missing new_owner_uuid" if !new_owner_uuid
+ raise "Missing new_user_uuid" if !new_user_uuid
+ transaction(requires_new: true) do
+ reload
+ raise "cannot merge an already merged user" if self.redirect_to_user_uuid
+
+ new_user = User.where(uuid: new_user_uuid).first
+ raise "user does not exist" if !new_user
+ raise "cannot merge to an already merged user" if new_user.redirect_to_user_uuid
+
+ # If 'self' is a remote user, don't transfer authorizations
+ # (i.e. ability to access the account) to the new user, because
+ # that gives the remote site the ability to access the 'new'
+ # user account that takes over the 'self' account.
+ #
+ # If 'self' is a local user, it is okay to transfer
+ # authorizations, even if the 'new' user is a remote account,
+ # because the remote site does not gain the ability to access an
+ # account it could not before.
+
+ if redirect_to_new_user and self.uuid[0..4] == Rails.configuration.ClusterID
+ # Existing API tokens and ssh keys are updated to authenticate
+ # to the new user.
+ ApiClientAuthorization.
+ where(user_id: id).
+ update_all(user_id: new_user.id)
+
+ user_updates = [
+ [AuthorizedKey, :owner_uuid],
+ [AuthorizedKey, :authorized_user_uuid],
+ [Link, :owner_uuid],
+ [Link, :tail_uuid],
+ [Link, :head_uuid],
+ ]
+ else
+ # Destroy API tokens and ssh keys associated with the old
+ # user.
+ ApiClientAuthorization.where(user_id: id).destroy_all
+ AuthorizedKey.where(owner_uuid: uuid).destroy_all
+ AuthorizedKey.where(authorized_user_uuid: uuid).destroy_all
+ user_updates = [
+ [Link, :owner_uuid],
+ [Link, :tail_uuid]
+ ]
+ end
+
+ # References to the old user UUID in the context of a user ID
+ # (rather than a "home project" in the project hierarchy) are
+ # updated to point to the new user.
+ user_updates.each do |klass, column|
+ klass.where(column => uuid).update_all(column => new_user.uuid)
+ end
+
+ # Need to update repository names to new username
+ if username
+ old_repo_name_re = /^#{Regexp.escape(username)}\//
+ Repository.where(:owner_uuid => uuid).each do |repo|
+ repo.owner_uuid = new_user.uuid
+ repo_name_sub = "#{new_user.username}/"
+ name = repo.name.sub(old_repo_name_re, repo_name_sub)
+ while (conflict = Repository.where(:name => name).first) != nil
+ repo_name_sub += "migrated"
+ name = repo.name.sub(old_repo_name_re, repo_name_sub)
+ end
+ repo.name = name
+ repo.save!
+ end
+ end
+
+ # References to the merged user's "home project" are updated to
+ # point to new_owner_uuid.
+ ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |klass|
+ next if [ApiClientAuthorization,
+ AuthorizedKey,
+ Link,
+ Log,
+ Repository].include?(klass)
+ next if !klass.columns.collect(&:name).include?('owner_uuid')
+ klass.where(owner_uuid: uuid).update_all(owner_uuid: new_owner_uuid)
+ end
+
+ if redirect_to_new_user
+ update_attributes!(redirect_to_user_uuid: new_user.uuid, username: nil)
+ end
+ invalidate_permissions_cache
+ end
+ end
+
+ def redirects_to
+ user = self
+ redirects = 0
+ while (uuid = user.redirect_to_user_uuid)
+ user = User.unscoped.find_by_uuid(uuid)
+ if !user
+ raise Exception.new("user uuid #{user.uuid} redirects to nonexistent uuid #{uuid}")
+ end
+ redirects += 1
+ if redirects > 15
+ raise "Starting from #{self.uuid} redirect_to_user_uuid exceeded maximum number of redirects"
+ end
+ end
+ user
+ end
+
+ def self.register info
+ # login info expected fields, all can be optional but at minimum
+ # must supply either 'identity_url' or 'email'
+ #
+ # email
+ # first_name
+ # last_name
+ # username
+ # alternate_emails
+ # identity_url
+
+ primary_user = nil
+
+ # local database
+ identity_url = info['identity_url']
+
+ if identity_url && identity_url.length > 0
+ # Only local users can create sessions, hence uuid_like_pattern
+ # here.
+ user = User.unscoped.where('identity_url = ? and uuid like ?',
+ identity_url,
+ User.uuid_like_pattern).first
+ primary_user = user.redirects_to if user
+ end
+
+ if !primary_user
+ # identity url is unset or didn't find matching record.
+ emails = [info['email']] + (info['alternate_emails'] || [])
+ emails.select! {|em| !em.nil? && !em.empty?}
+
+ User.unscoped.where('email in (?) and uuid like ?',
+ emails,
+ User.uuid_like_pattern).each do |user|
+ if !primary_user
+ primary_user = user.redirects_to
+ elsif primary_user.uuid != user.redirects_to.uuid
+ raise "Ambiguous email address, directs to both #{primary_user.uuid} and #{user.redirects_to.uuid}"
+ end
+ end
+ end
+
+ if !primary_user
+ # New user registration
+ primary_user = User.new(:owner_uuid => system_user_uuid,
+ :is_admin => false,
+ :is_active => Rails.configuration.Users.NewUsersAreActive)
+
+ primary_user.set_initial_username(requested: info['username']) if info['username'] && !info['username'].blank?
+ primary_user.identity_url = info['identity_url'] if identity_url
+ end
+
+ primary_user.email = info['email'] if info['email']
+ primary_user.first_name = info['first_name'] if info['first_name']
+ primary_user.last_name = info['last_name'] if info['last_name']
+
+ if (!primary_user.email or primary_user.email.empty?) and (!primary_user.identity_url or primary_user.identity_url.empty?)
+ raise "Must have supply at least one of 'email' or 'identity_url' to User.register"
+ end
+
+ act_as_system_user do
+ primary_user.save!
+ end
+
+ primary_user
+ end
+
protected
+ def change_all_uuid_refs(old_uuid:, new_uuid:)
+ ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |klass|
+ klass.columns.each do |col|
+ if col.name.end_with?('_uuid')
+ column = col.name.to_sym
+ klass.where(column => old_uuid).update_all(column => new_uuid)
+ end
+ end
+ end
+ end
+
def ensure_ownership_path_leads_to_user
true
end
def permission_to_update
- if username_changed?
+ if username_changed? || redirect_to_user_uuid_changed? || email_changed?
current_user.andand.is_admin
else
# users must be able to update themselves (even if they are
def permission_to_create
current_user.andand.is_admin or
- (self == current_user and
- self.is_active == Rails.configuration.new_users_are_active)
+ (self == current_user &&
+ self.redirect_to_user_uuid.nil? &&
+ self.is_active == Rails.configuration.Users.NewUsersAreActive)
end
def check_auto_admin
return if self.uuid.end_with?('anonymouspublic')
if (User.where("email = ?",self.email).where(:is_admin => true).count == 0 and
- Rails.configuration.auto_admin_user and self.email == Rails.configuration.auto_admin_user) or
+ !Rails.configuration.Users.AutoAdminUserWithEmail.empty? and self.email == Rails.configuration.Users["AutoAdminUserWithEmail"]) or
(User.where("uuid not like '%-000000000000000'").where(:is_admin => true).count == 0 and
- Rails.configuration.auto_admin_first_user)
+ Rails.configuration.Users.AutoAdminFirstUser)
self.is_admin = true
self.is_active = true
end
quoted_name = self.class.connection.quote_string(basename)
next_username = basename
next_suffix = 1
- while Rails.configuration.auto_setup_name_blacklist.include?(next_username)
+ while Rails.configuration.Users.AutoSetupUsernameBlacklist[next_username]
next_suffix += 1
next_username = "%s%i" % [basename, next_suffix]
end
0.upto(6).each do |suffix_len|
pattern = "%s%s" % [quoted_name, "_" * suffix_len]
- self.class.
+ self.class.unscoped.
where("username like '#{pattern}'").
select(:username).
- order(username: :asc).
- find_each do |other_user|
+ order('username asc').
+ each do |other_user|
if other_user.username > next_username
break
elsif other_user.username == next_username
nil
end
- def set_initial_username
- email_parts = email.partition("@")
- local_parts = email_parts.first.partition("+")
- if email_parts.any?(&:empty?)
- return
- elsif not local_parts.first.empty?
- base_username = local_parts.first
- else
- base_username = email_parts.first
- end
- base_username.sub!(/^[^A-Za-z]+/, "")
- base_username.gsub!(/[^A-Za-z0-9]/, "")
- unless base_username.empty?
- self.username = find_usable_username_from(base_username)
- end
- end
-
def prevent_privilege_escalation
if current_user.andand.is_admin
return true
end
if self.is_active_changed?
if self.is_active != self.is_active_was
- logger.warn "User #{current_user.uuid} tried to change is_active from #{self.is_admin_was} to #{self.is_admin} for #{self.uuid}"
+ logger.warn "User #{current_user.uuid} tried to change is_active from #{self.is_active_was} to #{self.is_active} for #{self.uuid}"
self.is_active = self.is_active_was
end
end
merged
end
- def create_oid_login_perm (openid_prefix)
- login_perm_props = { "identity_url_prefix" => openid_prefix}
-
- # Check oid_login_perm
- oid_login_perms = Link.where(tail_uuid: self.email,
- link_class: 'permission',
- name: 'can_login').where("head_uuid = ?", self.uuid)
-
- if !oid_login_perms.any?
- # create openid login permission
- oid_login_perm = Link.create(link_class: 'permission',
- name: 'can_login',
- tail_uuid: self.email,
- head_uuid: self.uuid,
- properties: login_perm_props
- )
- logger.info { "openid login permission: " + oid_login_perm[:uuid] }
- else
- oid_login_perm = oid_login_perms.first
- end
-
- return oid_login_perm
- end
-
def create_user_repo_link(repo_name)
# repo_name is optional
if not repo_name
# create login permission for the given vm_uuid, if it does not already exist
def create_vm_login_permission_link(vm_uuid, repo_name)
# vm uuid is optional
- if vm_uuid
- vm = VirtualMachine.where(uuid: vm_uuid).first
+ return if vm_uuid == ""
- if not vm
- logger.warn "Could not find virtual machine for #{vm_uuid.inspect}"
- raise "No vm found for #{vm_uuid}"
- end
- else
- return
+ vm = VirtualMachine.where(uuid: vm_uuid).first
+ if !vm
+ logger.warn "Could not find virtual machine for #{vm_uuid.inspect}"
+ raise "No vm found for #{vm_uuid}"
end
logger.info { "vm uuid: " + vm[:uuid] }
# Send admin notifications
def send_admin_notifications
- AdminNotifier.new_user(self).deliver
+ AdminNotifier.new_user(self).deliver_now
if not self.is_active then
- AdminNotifier.new_inactive_user(self).deliver
+ AdminNotifier.new_inactive_user(self).deliver_now
+ end
+ end
+
+ # Automatically setup if is_active flag turns on
+ def setup_on_activate
+ return if [system_user_uuid, anonymous_user_uuid].include?(self.uuid)
+ if is_active && (new_record? || is_active_changed?)
+ setup
end
end
# Automatically setup new user during creation
def auto_setup_new_user
- setup_repo_vm_links(nil, nil, Rails.configuration.default_openid_prefix)
+ setup
if username
- create_vm_login_permission_link(Rails.configuration.auto_setup_new_users_with_vm_uuid,
+ create_vm_login_permission_link(Rails.configuration.Users.AutoSetupNewUsersWithVmUUID,
username)
repo_name = "#{username}/#{username}"
- if Rails.configuration.auto_setup_new_users_with_repository and
+ if Rails.configuration.Users.AutoSetupNewUsersWithRepository and
Repository.where(name: repo_name).first.nil?
repo = Repository.create!(name: repo_name, owner_uuid: uuid)
Link.create!(tail_uuid: uuid, head_uuid: repo.uuid,
def send_profile_created_notification
if self.prefs_changed?
if self.prefs_was.andand.empty? || !self.prefs_was.andand['profile']
- profile_notification_address = Rails.configuration.user_profile_notification_address
- ProfileNotifier.profile_created(self, profile_notification_address).deliver if profile_notification_address
+ profile_notification_address = Rails.configuration.Users.UserProfileNotificationAddress
+ ProfileNotifier.profile_created(self, profile_notification_address).deliver_now if profile_notification_address and !profile_notification_address.empty?
end
end
end
def verify_repositories_empty
unless repositories.first.nil?
errors.add(:username, "can't be unset when the user owns repositories")
- false
+ throw(:abort)
end
end