gitlab-org--gitlab-foss/app/services/audit_event_service.rb

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# frozen_string_literal: true
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class AuditEventService
include AuditEventSaveType
# Instantiates a new service
#
# @param [User, token String] author the entity who authors the change
# @param [User, Project, Group] entity the scope which audit event belongs to
# This param is also used to determine the visibility of the audit event.
# - Project: events are visible at Project and Instance level
# - Group: events are visible at Group and Instance level
# - User: events are visible at Instance level
# @param [Hash] details extra data of audit event
# @param [Symbol] save_type the type to save the event
# Can be selected from the following, :database, :stream, :database_and_stream .
# @params [DateTime] created_at the time the action occured
#
# @return [AuditEventService]
def initialize(author, entity, details = {}, save_type = :database_and_stream, created_at = DateTime.current)
@author = build_author(author)
@entity = entity
@details = details
@ip_address = resolve_ip_address(@author)
@save_type = save_type
@created_at = created_at
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end
# Builds the @details attribute for authentication
#
# This uses the @author as the target object being audited
#
# @return [AuditEventService]
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def for_authentication
mark_as_authentication_event!
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@details = {
with: @details[:with],
target_id: @author.id,
target_type: 'User',
target_details: @author.name
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}
self
end
# Writes event to a file and creates an event record in DB
#
# @return [AuditEvent] persisted if saves and non-persisted if fails
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def security_event
log_security_event_to_file
log_authentication_event_to_database
log_security_event_to_database
end
# Writes event to a file
def log_security_event_to_file
file_logger.info(base_payload.merge(formatted_details))
end
private
attr_reader :ip_address
def build_author(author)
case author
when User
author.impersonated? ? Gitlab::Audit::ImpersonatedAuthor.new(author) : author
else
Gitlab::Audit::UnauthenticatedAuthor.new(name: author)
end
end
def resolve_ip_address(author)
Gitlab::RequestContext.instance.client_ip ||
author.current_sign_in_ip
end
def base_payload
{
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author_id: @author.id,
author_name: @author.name,
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entity_id: @entity.id,
entity_type: @entity.class.name,
created_at: @created_at
}
end
def authentication_event_payload
{
# @author can be a User or various Gitlab::Audit authors.
# Only capture real users for successful authentication events.
user: author_if_user,
user_name: @author.name,
ip_address: ip_address,
result: AuthenticationEvent.results[:success],
provider: @details[:with]
}
end
def author_if_user
@author if @author.is_a?(User)
end
def file_logger
@file_logger ||= Gitlab::AuditJsonLogger.build
end
def formatted_details
@details.merge(@details.slice(:from, :to).transform_values(&:to_s))
end
def mark_as_authentication_event!
@authentication_event = true
end
def authentication_event?
@authentication_event
end
def log_security_event_to_database
return if Gitlab::Database.read_only?
event = build_event
save_or_track event
event
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end
def build_event
AuditEvent.new(base_payload.merge(details: @details))
end
def stream_event_to_external_destinations(_event)
# Defined in EE
end
def log_authentication_event_to_database
return unless Gitlab::Database.read_write? && authentication_event?
event = AuthenticationEvent.new(authentication_event_payload)
save_or_track event
event
end
def save_or_track(event)
event.save! if should_save_database?(@save_type)
stream_event_to_external_destinations(event) if should_save_stream?(@save_type)
rescue StandardError => e
Gitlab::ErrorTracking.track_and_raise_for_dev_exception(e, audit_event_type: event.class.to_s)
end
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end
AuditEventService.prepend_mod_with('AuditEventService')