feat: add bearer helper

session/helper.go

@@ -0,0 +1,16 @@
+package session
+
+import (
+	"net/http"
+	"strings"
+)
+
+func bearerTokenFromRequest(r *http.Request) (string, bool) {
+	parts := strings.Split(r.Header.Get("Authorization"), " ")
+
+	if len(parts) == 2 && strings.ToLower(parts[0]) == "bearer" {
+		return parts[1], true
+	}
+
+	return "", false
+}

session/helper_test.go

@@ -0,0 +1,52 @@
+package session
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestBearerTokenFromRequest(t *testing.T) {
+	for k, tc := range []struct {
+		h http.Header
+		t string
+		f bool
+	}{
+		{
+			h: http.Header{"Authorization": {"Bearer token"}},
+			t: "token", f : true,
+		},
+		{
+			h: http.Header{"Authorization": {"bearer token"}},
+			t: "token", f : true,
+		},
+		{
+			h: http.Header{"Authorization": {"beaRer token"}},
+			t: "token", f : true,
+		},
+		{
+			h: http.Header{"Authorization": {"BEARER token"}},
+			t: "token", f : true,
+		},
+		{
+			h: http.Header{"Authorization": {"notbearer token"}},
+		},
+		{
+			h: http.Header{"Authorization": {"token"}},
+		},
+		{
+			h: http.Header{"Authorization": {}},
+		},
+		{
+			h: http.Header{},
+		},
+	} {
+		t.Run(fmt.Sprintf("case=%d", k), func(t *testing.T) {
+			token, found := bearerTokenFromRequest(&http.Request{Header: tc.h})
+			assert.Equal(t, tc.f, found)
+			assert.Equal(t, tc.t, token)
+		})
+	}
+}