Working auth and photo json endpoint

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

vendor/github.com/dsoprea/go-png-image-structure/utility.go

@@ -0,0 +1,65 @@
+package pngstructure
+
+import (
+	"bytes"
+	"fmt"
+
+	log "github.com/dsoprea/go-logging"
+)
+
+func DumpBytes(data []byte) {
+	fmt.Printf("DUMP: ")
+	for _, x := range data {
+		fmt.Printf("%02x ", x)
+	}
+
+	fmt.Printf("\n")
+}
+
+func DumpBytesClause(data []byte) {
+	fmt.Printf("DUMP: ")
+
+	fmt.Printf("[]byte { ")
+
+	for i, x := range data {
+		fmt.Printf("0x%02x", x)
+
+		if i < len(data)-1 {
+			fmt.Printf(", ")
+		}
+	}
+
+	fmt.Printf(" }\n")
+}
+
+func DumpBytesToString(data []byte) string {
+	b := new(bytes.Buffer)
+
+	for i, x := range data {
+		_, err := b.WriteString(fmt.Sprintf("%02x", x))
+		log.PanicIf(err)
+
+		if i < len(data)-1 {
+			_, err := b.WriteRune(' ')
+			log.PanicIf(err)
+		}
+	}
+
+	return b.String()
+}
+
+func DumpBytesClauseToString(data []byte) string {
+	b := new(bytes.Buffer)
+
+	for i, x := range data {
+		_, err := b.WriteString(fmt.Sprintf("0x%02x", x))
+		log.PanicIf(err)
+
+		if i < len(data)-1 {
+			_, err := b.WriteString(", ")
+			log.PanicIf(err)
+		}
+	}
+
+	return b.String()
+}