Actions Artifacts v4 backend (#2224)

* Actions Artifacts v4 backend

* lint

* fix it now

* remove protofile, to make linter not complain

* sync changes

* add delete

* import auth test from gitea

* add more tests

* codecov ignore protobuf

pkg/common/auth_test.go

@@ -0,0 +1,62 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package common
+
+import (
+	"encoding/json"
+	"net/http"
+	"testing"
+
+	"github.com/golang-jwt/jwt/v5"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCreateAuthorizationToken(t *testing.T) {
+	var taskID int64 = 23
+	token, err := CreateAuthorizationToken(taskID, 1, 2)
+	assert.Nil(t, err)
+	assert.NotEqual(t, "", token)
+	claims := jwt.MapClaims{}
+	_, err = jwt.ParseWithClaims(token, claims, func(t *jwt.Token) (interface{}, error) {
+		return []byte{}, nil
+	})
+	assert.Nil(t, err)
+	scp, ok := claims["scp"]
+	assert.True(t, ok, "Has scp claim in jwt token")
+	assert.Contains(t, scp, "Actions.Results:1:2")
+	taskIDClaim, ok := claims["TaskID"]
+	assert.True(t, ok, "Has TaskID claim in jwt token")
+	assert.Equal(t, float64(taskID), taskIDClaim, "Supplied taskid must match stored one")
+	acClaim, ok := claims["ac"]
+	assert.True(t, ok, "Has ac claim in jwt token")
+	ac, ok := acClaim.(string)
+	assert.True(t, ok, "ac claim is a string for buildx gha cache")
+	scopes := []actionsCacheScope{}
+	err = json.Unmarshal([]byte(ac), &scopes)
+	assert.NoError(t, err, "ac claim is a json list for buildx gha cache")
+	assert.GreaterOrEqual(t, len(scopes), 1, "Expected at least one action cache scope for buildx gha cache")
+}
+
+func TestParseAuthorizationToken(t *testing.T) {
+	var taskID int64 = 23
+	token, err := CreateAuthorizationToken(taskID, 1, 2)
+	assert.Nil(t, err)
+	assert.NotEqual(t, "", token)
+	headers := http.Header{}
+	headers.Set("Authorization", "Bearer "+token)
+	rTaskID, err := ParseAuthorizationToken(&http.Request{
+		Header: headers,
+	})
+	assert.Nil(t, err)
+	assert.Equal(t, taskID, rTaskID)
+}
+
+func TestParseAuthorizationTokenNoAuthHeader(t *testing.T) {
+	headers := http.Header{}
+	rTaskID, err := ParseAuthorizationToken(&http.Request{
+		Header: headers,
+	})
+	assert.Nil(t, err)
+	assert.Equal(t, int64(0), rTaskID)
+}