metrics have been added

1 files changed, 31 insertions, 0 deletions

diff --git a/library/go/httputil/headers/authorization.go b/library/go/httputil/headers/authorization.go
new file mode 100644
index 0000000000..145e04f931
--- /dev/null
+++ b/library/go/httputil/headers/authorization.go
@@ -0,0 +1,31 @@
+package headers
+
+import "strings"
+
+const (
+	AuthorizationKey = "Authorization"
+
+	TokenTypeBearer TokenType = "bearer"
+	TokenTypeMAC    TokenType = "mac"
+)
+
+type TokenType string
+
+// String implements stringer interface
+func (tt TokenType) String() string {
+	return string(tt)
+}
+
+func AuthorizationTokenType(token string) TokenType {
+	if len(token) > len(TokenTypeBearer) &&
+		strings.ToLower(token[:len(TokenTypeBearer)]) == TokenTypeBearer.String() {
+		return TokenTypeBearer
+	}
+
+	if len(token) > len(TokenTypeMAC) &&
+		strings.ToLower(token[:len(TokenTypeMAC)]) == TokenTypeMAC.String() {
+		return TokenTypeMAC
+	}
+
+	return TokenType("unknown")
+}