Class: User

Inherits:
JSONModel
  • Object
show all
Includes:
ASModel
Defined in:
backend/app/model/user.rb,
frontend/app/models/user.rb

Defined Under Namespace

Classes: PermissionNotFound

Constant Summary collapse

@@unlisted_user_ids = 
nil

Constants included from JSONModel

JSONModel::REFERENCE_KEY_REGEX

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ASModel

all_models, included, update_publish_flag, update_suppressed_flag

Methods included from JSONModel

JSONModel, #JSONModel, add_error_handler, all, allow_unmapped_enum_value, backend_url, check_valid_refs, client_mode?, custom_validations, destroy_model, enum_default_value, enum_values, handle_error, init, load_schema, #models, models, parse_jsonmodel_ref, parse_reference, repository, repository_for, schema_src, set_publish_flags!, set_repository, strict_mode, strict_mode?, validate_schema, with_repository

Class Method Details

.ADMIN_USERNAME ⇒ Object 



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# File 'backend/app/model/user.rb', line 93

def self.ADMIN_USERNAME
  "admin"
end

.become_user(context, username) ⇒ Object 



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# File 'frontend/app/models/user.rb', line 45

def self.become_user(context, username)
  return false if username == "admin"
  uri = JSONModel(:user).uri_for("#{username}/become-user")

  response = JSONModel::HTTP.post_form(uri)

  if response.code == '200'
    backend_session = ASUtils.json_parse(response.body)

    self.establish_session(context, backend_session, username)

    true
  else
    false
  end
end

.broadcast_changes ⇒ Object 



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# File 'backend/app/model/user.rb', line 88

def self.broadcast_changes
  Notifications.notify("REFRESH_ACLS")
end

.create_from_json(json, opts = {}) ⇒ Object 



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# File 'backend/app/model/user.rb', line 12

def self.create_from_json(json, opts = {})
  if !opts[:is_hidden_user]
    agent = JSONModel(:agent_person).from_hash(
              {:publish => false,
              :agent_sha1 => SecureRandom.hex,
              :names => [{
                :primary_name => json.name,
                :source => 'local',
                :rules => 'local',
                :name_order => 'direct',
                :sort_name_auto_generate => true
            }]}, raise_errors = true, trusted = true)

    CrudHelpers.with_record_conflict_reporting(AgentPerson, agent) do
      agent_obj = AgentPerson.create_from_json(agent, :system_generated => true, :skip_sha => true)

      opts['agent_record_type'] = :agent_person
      opts['agent_record_id'] = agent_obj.id
    end
  end

  obj = super(json, opts)
  make_admin_if_requested(obj, json)
  obj
end

.establish_session(context, backend_session, username) ⇒ Object 



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# File 'frontend/app/models/user.rb', line 7

def self.establish_session(context, backend_session, username)
  context.session[:session] = backend_session["session"]

  store_permissions(backend_session["user"]["permissions"], context)

  context.session[:user_uri] = backend_session["user"]["uri"]
  context.session[:user] = username
end

.login(username, password) ⇒ Object 



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# File 'frontend/app/models/user.rb', line 32

def self.(username, password)
  uri = JSONModel(:user).uri_for("#{username}/login")

  response = JSONModel::HTTP.post_form(uri, :password => password)

  if response.code == '200'
    ASUtils.json_parse(response.body)
  else
    nil
  end
end

.make_admin_if_requested(obj, json) ⇒ Object 



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# File 'backend/app/model/user.rb', line 45

def self.make_admin_if_requested(obj, json)
  return if !RequestContext.get(:apply_admin_access)

  # Nothing to do if these already agree
  begin
    return if (json.is_admin === obj.can?(:administer_system))
  rescue PermissionNotFound
    # System is being bootstrapped and permissions aren't here yet.  That's
    # fine.
  end

  RequestContext.in_global_repo do
    admins_group = Group.this_repo[:group_code => Group.ADMIN_GROUP_CODE]

    if admins_group
      if json.is_admin
        admins_group.add_user(obj)
      else
        admins_group.remove_user(obj)
      end

      self.broadcast_changes
    end
  end
end

.PUBLIC_USERNAME ⇒ Object 



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# File 'backend/app/model/user.rb', line 103

def self.PUBLIC_USERNAME
  AppConfig[:public_username]
end

.refresh_permissions(context) ⇒ Object 



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# File 'frontend/app/models/user.rb', line 17

def self.refresh_permissions(context)
  user = self.find('current-user')

  if user
    store_permissions(user.permissions, context)
  end
end

.SEARCH_USERNAME ⇒ Object 



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# File 'backend/app/model/user.rb', line 98

def self.SEARCH_USERNAME
  AppConfig[:search_username]
end

.sequel_to_jsonmodel(objs, opts = {}) ⇒ Object 



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# File 'backend/app/model/user.rb', line 72

def self.sequel_to_jsonmodel(objs, opts = {})
  jsons = super

  jsons.zip(objs).each do |json, obj|
    if obj.agent_record_id
      json['agent_record'] = {'ref' => uri_for(obj.agent_record_type, obj.agent_record_id)}
    end

    if obj.can?(:administer_system)
      json['is_admin'] = true
    end
  end
  jsons
end

.STAFF_USERNAME ⇒ Object 



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# File 'backend/app/model/user.rb', line 108

def self.STAFF_USERNAME
  AppConfig[:staff_username]
end

.store_permissions(permissions, context) ⇒ Object 



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# File 'frontend/app/models/user.rb', line 26

def self.store_permissions(permissions, context)
  context.send(:cookies).signed[:archivesspace_permissions] = 'ZLIB:' + Zlib::Deflate.deflate(ASUtils.to_json(Permissions.pack(permissions)))
  context.session[:last_permission_refresh] = Time.now.to_i
end

.unlisted_user_ids ⇒ Object 



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# File 'backend/app/model/user.rb', line 113

def self.unlisted_user_ids
  @@unlisted_user_ids ||= User.filter(:is_hidden_user => 1).collect {|user| user.id}
end

Instance Method Details

#add_to_groups(groups, delete_all_for_repo_id = false) ⇒ Object 



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# File 'backend/app/model/user.rb', line 214

def add_to_groups(groups, delete_all_for_repo_id = false)
  if delete_all_for_repo_id
    groups_ids = self.class.db[:group].where(:repo_id => delete_all_for_repo_id).select(:id)
    self.class.db[:group_user].where(:user_id => self.id, :group_id => groups_ids).delete
  end

  Array(groups).each do |group|
    group.add_user(self)
  end

  self.class.broadcast_changes
end

#anonymous? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'backend/app/model/user.rb', line 130

def anonymous?
  false
end

#before_save ⇒ Object 



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# File 'backend/app/model/user.rb', line 117

def before_save
  super

  self.username = self.username.downcase
end

#can?(permission_code, opts = {}) ⇒ Boolean

True if a user has access to perform ‘permission’ in ‘repo_id’

Returns:

  • (Boolean) 


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# File 'backend/app/model/user.rb', line 153

def can?(permission_code, opts = {})
  if derived_permissions.include?(permission_code.to_s)
    return true
  end

  permission = Permission[:permission_code => permission_code.to_s]
  global_repo = Repository[:repo_code => Repository.GLOBAL]

  # False if the permission does not exist (or the derived permission is not assigned to this user)
  return false if permission.nil?

  if permission[:level] == "repository" && self.class.active_repository.nil?
    raise("Problem when checking permission: #{permission.permission_code} " +
          "is a repository-level permission, but no repository was set")
  end

  ((self.class.db[:group].
                        join(:group_user, :group_id => :id).
                        join(:group_permission, :group_id => :group_id).
                        filter(:user_id => self.id,
                               :permission_id => permission.id,
                               :repo_id => [self.class.active_repository, global_repo.id].reject(&:nil?)).
                        count) >= 1)
end

#delete ⇒ Object

Raises:



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# File 'backend/app/model/user.rb', line 228

def delete
  raise AccessDeniedException.new("Can't delete system user") if self.is_system_user == 1

  DBAuth.delete_user(self.username)

  # transfer all import jobs to the admin user
  admin_user = User.select(:id).where( :username => "admin" ).first
  Job.filter(:owner_id => self.id).update( :owner_id => admin_user.id )

  Preference.filter(:user_id => self.id).delete
  self.remove_all_group

  super

  if self.agent_record_id
    AgentPerson[self.agent_record_id].delete
  end
end

#derived_permissions ⇒ Object 



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# File 'backend/app/model/user.rb', line 135

def derived_permissions
  actual_permissions =
    self.class.db[:group].
         join(:group_user, :group_id => :id).
         join(:group_permission, :group_id => :group_id).
         join(:permission, :id => :permission_id).
         filter(:user_id => self.id).
         select(:permission_code).map {|row| row[:permission_code]}


  actual_permissions.map {|p| Permission.derived_permissions_for(p) }.flatten.uniq
end

#permissions ⇒ Object 



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# File 'backend/app/model/user.rb', line 179

def permissions
  result = {}

  derived = derived_permissions


  # Crikey...
  ds = self.class.db[:group].
    join(:group_user, :group_id => :id).
    join(:group_permission, :group_id => :group_id).
    join(:permission, :id => :permission_id).
    join(:repository, :id => :group__repo_id).
    filter(:user_id => self.id).
    distinct.
    select(Sequel.qualify(:repository, :id).as(:repo_id), Sequel.qualify(:repository, :repo_code).as(:repo_code), :permission_code)

  global_permissions = []

  ds.each do |row|
    repository_uri = JSONModel(:repository).uri_for(row[:repo_id])
    result[repository_uri] ||= derived.clone
    result[repository_uri] << row[:permission_code]

    if row[:repo_code] == Repository.GLOBAL
      global_permissions << row[:permission_code]
    end
  end

  # Attach permissions in the global repository under the symbolic name too
  result[Repository.GLOBAL] = global_permissions + derived

  result
end

#update_from_json(json, opts = {}, apply_nested_records = true) ⇒ Object 



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# File 'backend/app/model/user.rb', line 39

def update_from_json(json, opts = {}, apply_nested_records = true)
  self.class.make_admin_if_requested(self, json)
  super
end

#validate ⇒ Object 



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# File 'backend/app/model/user.rb', line 124

def validate
  validates_unique(:username,
                   :message => "Username '#{self.username}' is already in use")
end