server/src/Core/Services/Implementations/PolicyService.cs

using System;
using System.Threading.Tasks;
using Bit.Core.Exceptions;
using Bit.Core.Models.Table;
using Bit.Core.Repositories;

namespace Bit.Core.Services
{
    public class PolicyService : IPolicyService
    {
        private readonly IEventService _eventService;
        private readonly IOrganizationRepository _organizationRepository;
        private readonly IOrganizationUserRepository _organizationUserRepository;
        private readonly IPolicyRepository _policyRepository;

        public PolicyService(
            IEventService eventService,
            IOrganizationRepository organizationRepository,
            IOrganizationUserRepository organizationUserRepository,
            IPolicyRepository policyRepository)
        {
            _eventService = eventService;
            _organizationRepository = organizationRepository;
            _organizationUserRepository = organizationUserRepository;
            _policyRepository = policyRepository;
        }

        public async Task SaveAsync(Policy policy)
        {
            var org = await _organizationRepository.GetByIdAsync(policy.OrganizationId);
            if(org == null)
            {
                throw new BadRequestException("Organization not found");
            }

            if(!org.UsePolicies)
            {
                throw new BadRequestException("This organization cannot use policies.");
            }

            var now = DateTime.UtcNow;
            if(policy.Id == default(Guid))
            {
                policy.CreationDate = now;
            }
            policy.RevisionDate = DateTime.UtcNow;
            await _policyRepository.UpsertAsync(policy);
            await _eventService.LogPolicyEventAsync(policy, Enums.EventType.Policy_Updated);
        }
    }
}