Working auth and photo json endpoint

Signed-off-by: Kris Nóva <kris@nivenly.com>

vendor/github.com/leandro-lugaresi/hub/subscriber.go

@@ -0,0 +1,83 @@
+package hub
+
+import (
+	"sync"
+)
+
+type (
+	alertFunc func(missed int)
+
+	nonBlockingSubscriber struct {
+		ch        chan Message
+		alert     alertFunc
+		onceClose sync.Once
+	}
+	// blockingSubscriber uses an channel to receive events.
+	blockingSubscriber struct {
+		ch        chan Message
+		onceClose sync.Once
+	}
+)
+
+// newNonBlockingSubscriber returns a new nonBlockingSubscriber
+// this subscriber will never block when sending an message, if the capacity is full
+// we will ignore the message and call the Alert function from the Alerter.
+func newNonBlockingSubscriber(cap int, alerter alertFunc) *nonBlockingSubscriber {
+	if cap <= 0 {
+		cap = 10
+	}
+
+	return &nonBlockingSubscriber{
+		ch:    make(chan Message, cap),
+		alert: alerter,
+	}
+}
+
+// Set inserts the given Event into the diode.
+func (s *nonBlockingSubscriber) Set(msg Message) {
+	select {
+	case s.ch <- msg:
+	default:
+		s.alert(1)
+	}
+}
+
+// Ch return the channel used by subscriptions to consume messages.
+func (s *nonBlockingSubscriber) Ch() <-chan Message {
+	return s.ch
+}
+
+// Close will close the internal channel and stop receiving messages.
+func (s *nonBlockingSubscriber) Close() {
+	s.onceClose.Do(func() {
+		close(s.ch)
+	})
+}
+
+// newBlockingSubscriber returns a blocking subscriber using chanels imternally.
+func newBlockingSubscriber(cap int) *blockingSubscriber {
+	if cap < 0 {
+		cap = 0
+	}
+
+	return &blockingSubscriber{
+		ch: make(chan Message, cap),
+	}
+}
+
+// Set will send the message using the channel.
+func (s *blockingSubscriber) Set(msg Message) {
+	s.ch <- msg
+}
+
+// Ch return the channel used by subscriptions to consume messages.
+func (s *blockingSubscriber) Ch() <-chan Message {
+	return s.ch
+}
+
+// Close will close the internal channel and stop receiving messages.
+func (s *blockingSubscriber) Close() {
+	s.onceClose.Do(func() {
+		close(s.ch)
+	})
+}