Refactor web package and context package (#25298)

1. The "web" package shouldn't depends on "modules/context" package,
instead, let each "web context" register themselves to the "web"
package.
2. The old Init/Free doesn't make sense, so simplify it
* The ctx in "Init(ctx)" is never used, and shouldn't be used that way
* The "Free" is never called and shouldn't be called because the SSPI
instance is shared

---------

Co-authored-by: Giteabot <teabot@gitea.io>

8 files changed, 27 insertions, 82 deletions

diff --git a/services/auth/group.go b/services/auth/group.go
index 0a0330b3aa..a1ff65f203 100644
--- a/services/auth/group.go
+++ b/services/auth/group.go
@@ -4,7 +4,6 @@
 package auth
 
 import (
-	"context"
 	"net/http"
 	"reflect"
 	"strings"
@@ -14,9 +13,7 @@ import (
 
 // Ensure the struct implements the interface.
 var (
-	_ Method        = &Group{}
-	_ Initializable = &Group{}
-	_ Freeable      = &Group{}
+	_ Method = &Group{}
 )
 
 // Group implements the Auth interface with serval Auth.
@@ -49,35 +46,6 @@ func (b *Group) Name() string {
 	return strings.Join(names, ",")
 }
 
-// Init does nothing as the Basic implementation does not need to allocate any resources
-func (b *Group) Init(ctx context.Context) error {
-	for _, method := range b.methods {
-		initializable, ok := method.(Initializable)
-		if !ok {
-			continue
-		}
-
-		if err := initializable.Init(ctx); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// Free does nothing as the Basic implementation does not have to release any resources
-func (b *Group) Free() error {
-	for _, method := range b.methods {
-		freeable, ok := method.(Freeable)
-		if !ok {
-			continue
-		}
-		if err := freeable.Free(); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
 // Verify extracts and validates
 func (b *Group) Verify(req *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) (*user_model.User, error) {
 	// Try to sign in with each of the enabled plugins
diff --git a/services/auth/interface.go b/services/auth/interface.go
index c4a8a20d01..508291fa43 100644
--- a/services/auth/interface.go
+++ b/services/auth/interface.go
@@ -29,26 +29,11 @@ type Method interface {
 	Verify(http *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) (*user_model.User, error)
 }
 
-// Initializable represents a structure that requires initialization
-// It usually should only be called once before anything else is called
-type Initializable interface {
-	// Init should be called exactly once before using any of the other methods,
-	// in order to allow the plugin to allocate necessary resources
-	Init(ctx context.Context) error
-}
-
 // Named represents a named thing
 type Named interface {
 	Name() string
 }
 
-// Freeable represents a structure that is required to be freed
-type Freeable interface {
-	// Free should be called exactly once before application closes, in order to
-	// give chance to the plugin to free any allocated resources
-	Free() error
-}
-
 // PasswordAuthenticator represents a source of authentication
 type PasswordAuthenticator interface {
 	Authenticate(user *user_model.User, login, password string) (*user_model.User, error)
diff --git a/services/auth/sspi_windows.go b/services/auth/sspi_windows.go
index d49497e19c..c162810797 100644
--- a/services/auth/sspi_windows.go
+++ b/services/auth/sspi_windows.go
@@ -4,10 +4,10 @@
 package auth
 
 import (
-	"context"
 	"errors"
 	"net/http"
 	"strings"
+	"sync"
 
 	"code.gitea.io/gitea/models/auth"
 	"code.gitea.io/gitea/models/avatars"
@@ -32,13 +32,12 @@ var (
 	// sspiAuth is a global instance of the websspi authentication package,
 	// which is used to avoid acquiring the server credential handle on
 	// every request
-	sspiAuth *websspi.Authenticator
+	sspiAuth     *websspi.Authenticator
+	sspiAuthOnce sync.Once
 
 	// Ensure the struct implements the interface.
-	_ Method        = &SSPI{}
-	_ Named         = &SSPI{}
-	_ Initializable = &SSPI{}
-	_ Freeable      = &SSPI{}
+	_ Method = &SSPI{}
+	_ Named  = &SSPI{}
 )
 
 // SSPI implements the SingleSignOn interface and authenticates requests
@@ -47,32 +46,25 @@ var (
 // Returns nil if authentication fails.
 type SSPI struct{}
 
-// Init creates a new global websspi.Authenticator object
-func (s *SSPI) Init(ctx context.Context) error {
-	config := websspi.NewConfig()
-	var err error
-	sspiAuth, err = websspi.New(config)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
 // Name represents the name of auth method
 func (s *SSPI) Name() string {
 	return "sspi"
 }
 
-// Free releases resources used by the global websspi.Authenticator object
-func (s *SSPI) Free() error {
-	return sspiAuth.Free()
-}
-
 // Verify uses SSPI (Windows implementation of SPNEGO) to authenticate the request.
 // If authentication is successful, returns the corresponding user object.
 // If negotiation should continue or authentication fails, immediately returns a 401 HTTP
 // response code, as required by the SPNEGO protocol.
 func (s *SSPI) Verify(req *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) (*user_model.User, error) {
+	var errInit error
+	sspiAuthOnce.Do(func() {
+		config := websspi.NewConfig()
+		sspiAuth, errInit = websspi.New(config)
+	})
+	if errInit != nil {
+		return nil, errInit
+	}
+
 	if !s.shouldAuthenticate(req) {
 		return nil, nil
 	}
diff --git a/services/repository/archiver/archiver_test.go b/services/repository/archiver/archiver_test.go
index 3cd6e81351..4b6fb7446d 100644
--- a/services/repository/archiver/archiver_test.go
+++ b/services/repository/archiver/archiver_test.go
@@ -24,7 +24,7 @@ func TestMain(m *testing.M) {
 func TestArchive_Basic(t *testing.T) {
 	assert.NoError(t, unittest.PrepareTestDatabase())
 
-	ctx := test.MockContext(t, "user27/repo49")
+	ctx, _ := test.MockContext(t, "user27/repo49")
 	firstCommit, secondCommit := "51f84af23134", "aacbdfe9e1c4"
 
 	test.LoadRepo(t, ctx, 49)
diff --git a/services/repository/files/content_test.go b/services/repository/files/content_test.go
index a43b71cf31..8ff96822c9 100644
--- a/services/repository/files/content_test.go
+++ b/services/repository/files/content_test.go
@@ -54,7 +54,7 @@ func getExpectedReadmeContentsResponse() *api.ContentsResponse {
 
 func TestGetContents(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	ctx.SetParams(":id", "1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
@@ -82,7 +82,7 @@ func TestGetContents(t *testing.T) {
 
 func TestGetContentsOrListForDir(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	ctx.SetParams(":id", "1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
@@ -117,7 +117,7 @@ func TestGetContentsOrListForDir(t *testing.T) {
 
 func TestGetContentsOrListForFile(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	ctx.SetParams(":id", "1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
@@ -145,7 +145,7 @@ func TestGetContentsOrListForFile(t *testing.T) {
 
 func TestGetContentsErrors(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	ctx.SetParams(":id", "1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
@@ -176,7 +176,7 @@ func TestGetContentsErrors(t *testing.T) {
 
 func TestGetContentsOrListErrors(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	ctx.SetParams(":id", "1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
@@ -207,7 +207,7 @@ func TestGetContentsOrListErrors(t *testing.T) {
 
 func TestGetContentsOrListOfEmptyRepos(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user30/empty")
+	ctx, _ := test.MockContext(t, "user30/empty")
 	ctx.SetParams(":id", "52")
 	test.LoadRepo(t, ctx, 52)
 	test.LoadUser(t, ctx, 30)
@@ -225,7 +225,7 @@ func TestGetContentsOrListOfEmptyRepos(t *testing.T) {
 
 func TestGetBlobBySHA(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
 	test.LoadUser(t, ctx, 2)
diff --git a/services/repository/files/diff_test.go b/services/repository/files/diff_test.go
index 621816e97d..0346e0e9e9 100644
--- a/services/repository/files/diff_test.go
+++ b/services/repository/files/diff_test.go
@@ -17,7 +17,7 @@ import (
 
 func TestGetDiffPreview(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	ctx.SetParams(":id", "1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
@@ -139,7 +139,7 @@ func TestGetDiffPreview(t *testing.T) {
 
 func TestGetDiffPreviewErrors(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	ctx.SetParams(":id", "1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
diff --git a/services/repository/files/file_test.go b/services/repository/files/file_test.go
index e1c7d5d7fb..d14a049438 100644
--- a/services/repository/files/file_test.go
+++ b/services/repository/files/file_test.go
@@ -98,7 +98,7 @@ func getExpectedFileResponse() *api.FileResponse {
 
 func TestGetFileResponseFromCommit(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	ctx.SetParams(":id", "1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
diff --git a/services/repository/files/tree_test.go b/services/repository/files/tree_test.go
index a500dbdb22..51a2190e8f 100644
--- a/services/repository/files/tree_test.go
+++ b/services/repository/files/tree_test.go
@@ -15,7 +15,7 @@ import (
 
 func TestGetTreeBySHA(t *testing.T) {
 	unittest.PrepareTestEnv(t)
-	ctx := test.MockContext(t, "user2/repo1")
+	ctx, _ := test.MockContext(t, "user2/repo1")
 	test.LoadRepo(t, ctx, 1)
 	test.LoadRepoCommit(t, ctx)
 	test.LoadUser(t, ctx, 2)