working commit

pkg/auxhttp/getbearer.go

@@ -0,0 +1,57 @@
+package auxhttp
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+)
+
+func GetBearerToken(authHeader string) (string, error) {
+	var err error
+	var res string
+
+	const bearerKey = "Bearer"
+	const numWords = 2
+
+	authData := strings.SplitN(authHeader, " ", numWords)
+	if len(authData) < numWords {
+		err = errors.New("Authorization key and value not found")
+		return res, err
+	}
+
+	authKey := strings.TrimSpace(authData[0])
+	if authKey != bearerKey {
+		err = fmt.Errorf("Authorization type is different from %s", bearerKey)
+		return res, err
+	}
+	token := authData[1]
+	token = strings.TrimSpace(token)
+
+	if len(token) == 0 {
+		return res, errors.New("Lenght of authorization token must be greater zero")
+	}
+	res = token
+	return res, err
+}
+
+func HaveBearerToken(authHeader string) bool {
+	const bearerKey = "Bearer"
+	const numWords = 2
+
+	authData := strings.SplitN(authHeader, " ", numWords)
+	if len(authData) < numWords {
+		return false
+	}
+
+	authKey := strings.TrimSpace(authData[0])
+	if authKey != bearerKey {
+		return false
+	}
+	token := authData[1]
+	token = strings.TrimSpace(token)
+
+	if len(token) == 0 {
+		return false
+	}
+	return true
+}