Working auth and photo json endpoint

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

vendor/github.com/dsoprea/go-exif/v2/undefined/accessor.go

@@ -0,0 +1,62 @@
+package exifundefined
+
+import (
+	"encoding/binary"
+
+	log "github.com/dsoprea/go-logging"
+
+	exifcommon "github.com/dsoprea/go-exif/v2/common"
+)
+
+// Encode encodes the given encodeable undefined value to bytes.
+func Encode(value EncodeableValue, byteOrder binary.ByteOrder) (encoded []byte, unitCount uint32, err error) {
+	defer func() {
+		if state := recover(); state != nil {
+			err = log.Wrap(state.(error))
+		}
+	}()
+
+	encoderName := value.EncoderName()
+
+	encoder, found := encoders[encoderName]
+	if found == false {
+		log.Panicf("no encoder registered for type [%s]", encoderName)
+	}
+
+	encoded, unitCount, err = encoder.Encode(value, byteOrder)
+	log.PanicIf(err)
+
+	return encoded, unitCount, nil
+}
+
+// Decode constructs a value from raw encoded bytes
+func Decode(valueContext *exifcommon.ValueContext) (value EncodeableValue, err error) {
+	defer func() {
+		if state := recover(); state != nil {
+			err = log.Wrap(state.(error))
+		}
+	}()
+
+	uth := UndefinedTagHandle{
+		IfdPath: valueContext.IfdPath(),
+		TagId:   valueContext.TagId(),
+	}
+
+	decoder, found := decoders[uth]
+	if found == false {
+		// We have no choice but to return the error. We have no way of knowing how
+		// much data there is without already knowing what data-type this tag is.
+		return nil, exifcommon.ErrUnhandledUndefinedTypedTag
+	}
+
+	value, err = decoder.Decode(valueContext)
+	if err != nil {
+		if err == ErrUnparseableValue {
+			return nil, err
+		}
+
+		log.Panic(err)
+	}
+
+	return value, nil
+}