public override DreamAccess DetermineAccess(DreamContext context, DreamMessage request)
{
if (context.Feature.Signature.StartsWith("subscribers/"))
{
string id = context.GetParam("id", null);
PubSubSubscriptionSet set = _dispatcher[id];
if (set != null)
{
string accessKey = context.GetParam("access-key", null);
if (string.IsNullOrEmpty(accessKey))
{
DreamCookie cookie = DreamCookie.GetCookie(request.Cookies, "access-key");
if (cookie != null)
{
accessKey = cookie.Value;
}
}
if (StringUtil.EqualsInvariant(set.AccessKey, accessKey))
{
return(DreamAccess.Private);
}
_log.DebugFormat("no matching access-key in query or cookie for location '{0}'", id);
}
else
{
_log.DebugFormat("no subscription set for location '{0}'", id);
}
}
return(base.DetermineAccess(context, request));
}
protected Yield GetSubscribeSet(DreamContext context, DreamMessage request, Result <DreamMessage> response)
{
PubSubSubscriptionSet set = _dispatcher[context.GetParam("id")];
if (set == null)
{
response.Return(DreamMessage.NotFound("There is no subscription set at this location"));
}
else
{
response.Return(DreamMessage.Ok(set.AsDocument()));
}
yield break;
}
protected Yield ReplaceSubscribeSet(DreamContext context, DreamMessage request, Result <DreamMessage> response)
{
try {
string setId = context.GetParam("id");
_log.DebugFormat("Updating set {0}", setId);
if (!string.IsNullOrEmpty(request.Headers.DreamEventId))
{
_log.DebugFormat("'{0}' update is event: {1} - {2}", setId, request.Headers.DreamEventChannel, request.Headers.DreamEventId);
}
XDoc subscriptionDocument = request.ToDocument();
PubSubSubscriptionSet set = _dispatcher.ReplaceSet(setId, subscriptionDocument);
if (set != null)
{
long?version = subscriptionDocument["@version"].AsLong;
if (version.HasValue && version.Value <= set.Version)
{
_log.DebugFormat("set not modified: {0}", setId);
response.Return(DreamMessage.NotModified());
}
else
{
if (version.HasValue)
{
_log.DebugFormat("Updating set '{0}' from version {1} to {2}", setId, set.Version, version);
}
else
{
_log.DebugFormat("Updating set '{0}'", setId);
}
response.Return(DreamMessage.Ok());
}
}
else
{
_log.DebugFormat("no such set: {0}", setId);
response.Return(DreamMessage.NotFound("There is no subscription set at this location"));
}
} catch (ArgumentException e) {
response.Return(DreamMessage.Forbidden(e.Message));
}
yield break;
}
