public DynamicCorsPolicyMiddleware(
RequestDelegate next,
IDynamicCorsPolicyService corsService,
ICorsPolicyAccessor corsPolicyAccessor)
{
if (corsPolicyAccessor == null)
{
throw new ArgumentNullException(nameof(corsPolicyAccessor));
}
_next = next ?? throw new ArgumentNullException(nameof(next));
CorsService = corsService ?? throw new ArgumentNullException(nameof(corsService));
_policy = corsPolicyAccessor.GetPolicy(CorsPoliciesEnums.DynamicCorsPolicyName);
}
public async Task InvokeAsync(HttpContext context, ICorsPolicyAccessor accessor
)
{
var policy = accessor.GetPolicy(_policyName);
string[] origins = CorsHelper.GetAllowedOrigins(_apiUrl);
if (origins?.Length > 0)
{
var policyOrigins = policy.Origins;
var newOrigins = origins.Except(policyOrigins);
foreach (var origin in newOrigins)
{
policy.Origins.Add(origin);
}
}
await _next(context);
}
public AddCorsController(ICorsPolicyAccessor corsPolicyAccessor)
{
this._corsPolicyAccessor = corsPolicyAccessor;
}