protected Yield PrologueDekiContext(DreamContext context, DreamMessage request, Result <DreamMessage> response)
{
// check if we need to skip this feature
if (context.Feature.PathSegments.Length > 1 && context.Feature.PathSegments[context.Feature.ServiceUri.Segments.Length].StartsWith("@"))
{
response.Return(request);
yield break;
}
if (context.Feature.Signature.StartsWithInvariantIgnoreCase("host") && !context.Feature.Signature.EqualsInvariantIgnoreCase("host/stop"))
{
// all host features except host/stop drop out before dekicontext so that there is no instance data
response.Return(request);
yield break;
}
var startInstanceIfNotRunning = true;
if (context.Feature.Signature.StartsWithInvariantIgnoreCase("host/"))
{
startInstanceIfNotRunning = false;
}
// check if service has initialized
if (!_isInitialized)
{
throw new DreamInternalErrorException("service not initialized");
}
//Build the dekicontext out of current request details and info from this wiki instance's details
DekiInstance instance = _instanceManager.GetWikiInstance(request, startInstanceIfNotRunning);
if (instance == null && !startInstanceIfNotRunning)
{
_log.Debug("no instance found, and on a code path that functions without one");
response.Return(request);
yield break;
}
// TODO (arnec): need to be able to get DreamContext.Current.StartTime injected into a feature signature
var hostheader = request.Headers.Host ?? string.Empty;
var dekiContext = new DekiContext(this, instance, hostheader, context.StartTime, ResourceManager);
// Note (arnec): By attaching DekiContext to the current DreamContext we guarantee that it is disposed at the end of the request
DreamContext.Current.SetState(dekiContext);
// check if instance has already been initialized
if (instance != null)
{
if (instance.Status == DekiInstanceStatus.CREATED)
{
bool created;
try {
lock (instance) {
created = (instance.Status == DekiInstanceStatus.CREATED);
if (created)
{
// initialize instance
instance.Startup(dekiContext);
}
}
// BUGBUGBUG (steveb): we startup the services AFTER the lock, because of race conditions, but this needs to be fixed
if (created)
{
instance.StartServices();
}
} catch (Exception e) {
created = false;
instance.StatusDescription = "Initialization exception: " + e.GetCoroutineStackTrace();
instance.Log.Error("Error initializing instance", e);
}
if (created)
{
// Note (arnec) this has to happen down here, since yield cannot exist inside a try/catch
// send instance settings to mailer
yield return(Coroutine.Invoke(ConfigureMailer, ConfigBL.GetInstanceSettingsAsDoc(false), new Result()).CatchAndLog(_log));
// check whether we have an index
XDoc lucenestate = null;
yield return(LuceneIndex.At("initstate").With("wikiid", instance.Id).Get(new Result <XDoc>()).Set(x => lucenestate = x));
// Note (arnec): defaulting to true, to avoid accidental re-index on false positive
if (!(lucenestate["@exists"].AsBool ?? true))
{
_log.DebugFormat("instance '{0}' doesn't have an index yet, forcing a rebuild", instance.Id);
yield return(Self.At("site", "search", "rebuild").With("apikey", MasterApiKey).Post(new Result <DreamMessage>()));
}
}
}
if (instance.Status != DekiInstanceStatus.ABANDONED)
{
try {
// force a state check to verify that license is good
var state = dekiContext.LicenseManager.LicenseState;
_log.DebugFormat("instance '{0}' license state: {1}", instance.Id, state);
} catch (MindTouchRemoteLicenseFailedException) {
_instanceManager.ShutdownCurrentInstance();
}
}
instance.CheckInstanceIsReady();
if (instance.Status == DekiInstanceStatus.ABANDONED)
{
//If instance was abandoned (failed to initialize), error out.
throw new DreamInternalErrorException(string.Format("wiki '{0}' has failed to initialize or did not start up properly: {1}", instance.Id, instance.StatusDescription));
}
if (instance.Status == DekiInstanceStatus.STOPPING)
{
throw new DreamInternalErrorException(string.Format("wiki '{0}' is currently shutting down", instance.Id));
}
if (instance.Status == DekiInstanceStatus.STOPPED)
{
throw new DreamInternalErrorException(string.Format("wiki '{0}' has just shut down and may be restarted with a new request", instance.Id));
}
// intialize culture/language + user
if (context.Culture.IsNeutralCulture || context.Culture.Equals(System.Globalization.CultureInfo.InvariantCulture))
{
try {
context.Culture = new System.Globalization.CultureInfo(instance.SiteLanguage);
} catch {
// in case the site language is invalid, default to US English
context.Culture = new System.Globalization.CultureInfo("en-US");
}
}
if (!context.Feature.Signature.EqualsInvariantIgnoreCase("users/authenticate"))
{
bool allowAnon = context.Uri.GetParam("authenticate", "false").EqualsInvariantIgnoreCase("false");
bool altPassword;
SetContextAndAuthenticate(request, 0, false, allowAnon, false, out altPassword);
}
// TODO (steveb): we should update the culture based on the user's preferences
}
// continue processing
response.Return(request);
yield break;
}