Moved everything out of internal

utils/image.go

@@ -0,0 +1,43 @@
+package utils
+
+import (
+	"encoding/base64"
+	"fmt"
+	"regexp"
+)
+
+func ProcessBase64Image(imageString string) (string, []byte, error) {
+	if imageString == "" {
+		return "", nil, fmt.Errorf("empty image string")
+	}
+
+	regex := regexp.MustCompile(`^data:.+\/(.+);base64,(.*)$`)
+	matches := regex.FindStringSubmatch(imageString)
+	var encodedString string
+	if len(matches) > 2 {
+		encodedString = regex.FindStringSubmatch(imageString)[2]
+	} else {
+		encodedString = imageString
+	}
+	imageData, err := GetDataFromBase64String(encodedString)
+	if err != nil {
+		return "", nil, err
+	}
+
+	return MD5FromBytes(imageData), imageData, nil
+}
+
+func GetDataFromBase64String(encodedString string) ([]byte, error) {
+	return base64.StdEncoding.DecodeString(encodedString)
+}
+
+func GetBase64StringFromData(data []byte) string {
+	return base64.StdEncoding.EncodeToString(data)
+
+	// Really slow
+	//result = regexp.MustCompile(`(.{60})`).ReplaceAllString(result, "$1\n")
+	//if result[len(result)-1:] != "\n" {
+	//	result += "\n"
+	//}
+	//return result
+}