Working auth and photo json endpoint

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

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

@@ -0,0 +1,40 @@
+package hub
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+)
+
+type (
+	// Fields is a [key]value storage for Messages values.
+	Fields map[string]interface{}
+
+	// Message represent some message/event passed into the hub
+	// It also contain some helper functions to convert the fields to primitive types.
+	Message struct {
+		Name   string
+		Body   []byte
+		Fields Fields
+	}
+)
+
+// Topic return the message topic used when the message was sended.
+func (m *Message) Topic() string {
+	return m.Name
+}
+
+func (f Fields) String() string {
+	if len(f) == 0 {
+		return "Fields(<empty>)"
+	}
+
+	fields := make([]string, 0, len(f))
+	for k, v := range f {
+		fields = append(fields, fmt.Sprintf("[%s]%v", k, v))
+	}
+
+	sort.Strings(fields)
+
+	return "Fields( " + strings.Join(fields, ", ") + " )"
+}