Fix nuget/conan/container packages upload bugs (go-gitea#31967) (go-g…

…itea#31982)

Backport go-gitea#31967 by @lunny

Co-authored-by: Lunny Xiao <[email protected]>

models/auth/access_token_scope.go

@@ -309,6 +309,22 @@ func (s AccessTokenScope) HasScope(scopes ...AccessTokenScope) (bool, error) {
 	return true, nil
 }
 
+// HasAnyScope returns true if any of the scopes is contained in the string
+func (s AccessTokenScope) HasAnyScope(scopes ...AccessTokenScope) (bool, error) {
+	bitmap, err := s.parse()
+	if err != nil {
+		return false, err
+	}
+
+	for _, s := range scopes {
+		if has, err := bitmap.hasScope(s); has || err != nil {
+			return has, err
+		}
+	}
+
+	return false, nil
+}
+
 // hasScope returns true if the string has the given scope
 func (bitmap accessTokenScopeBitmap) hasScope(scope AccessTokenScope) (bool, error) {
 	expectedBits, ok := allAccessTokenScopeBits[scope]

routers/api/packages/conan/auth.go

@@ -22,21 +22,25 @@ func (a *Auth) Name() string {
 
 // Verify extracts the user from the Bearer token
 func (a *Auth) Verify(req *http.Request, w http.ResponseWriter, store auth.DataStore, sess auth.SessionStore) (*user_model.User, error) {
-	uid, err := packages.ParseAuthorizationToken(req)
+	packageMeta, err := packages.ParseAuthorizationRequest(req)
 	if err != nil {
 		log.Trace("ParseAuthorizationToken: %v", err)
 		return nil, err
 	}
 
-	if uid == 0 {
+	if packageMeta == nil || packageMeta.UserID == 0 {
 		return nil, nil
 	}
 
-	u, err := user_model.GetUserByID(req.Context(), uid)
+	u, err := user_model.GetUserByID(req.Context(), packageMeta.UserID)
 	if err != nil {
 		log.Error("GetUserByID:  %v", err)
 		return nil, err
 	}
+	if packageMeta.Scope != "" {
+		store.GetData()["IsApiToken"] = true
+		store.GetData()["ApiTokenScope"] = packageMeta.Scope
+	}
 
 	return u, nil
 }

routers/api/packages/conan/conan.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 	"time"
 
+	auth_model "code.gitea.io/gitea/models/auth"
 	"code.gitea.io/gitea/models/db"
 	packages_model "code.gitea.io/gitea/models/packages"
 	conan_model "code.gitea.io/gitea/models/packages/conan"
@@ -21,6 +22,7 @@ import (
 	conan_module "code.gitea.io/gitea/modules/packages/conan"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/routers/api/packages/helper"
+	auth_service "code.gitea.io/gitea/services/auth"
 	"code.gitea.io/gitea/services/context"
 	notify_service "code.gitea.io/gitea/services/notify"
 	packages_service "code.gitea.io/gitea/services/packages"
@@ -117,7 +119,20 @@ func Authenticate(ctx *context.Context) {
 		return
 	}
 
-	token, err := packages_service.CreateAuthorizationToken(ctx.Doer)
+	packageScope := auth_service.GetAccessScope(ctx.Data)
+	if has, err := packageScope.HasAnyScope(
+		auth_model.AccessTokenScopeReadPackage,
+		auth_model.AccessTokenScopeWritePackage,
+		auth_model.AccessTokenScopeAll,
+	); !has {
+		if err != nil {
+			log.Error("Error checking access scope: %v", err)
+		}
+		apiError(ctx, http.StatusForbidden, nil)
+		return
+	}
+
+	token, err := packages_service.CreateAuthorizationToken(ctx.Doer, packageScope)
 	if err != nil {
 		apiError(ctx, http.StatusInternalServerError, err)
 		return
@@ -130,9 +145,23 @@ func Authenticate(ctx *context.Context) {
 func CheckCredentials(ctx *context.Context) {
 	if ctx.Doer == nil {
 		ctx.Status(http.StatusUnauthorized)
-	} else {
-		ctx.Status(http.StatusOK)
+		return
 	}
+
+	packageScope := auth_service.GetAccessScope(ctx.Data)
+	if has, err := packageScope.HasAnyScope(
+		auth_model.AccessTokenScopeReadPackage,
+		auth_model.AccessTokenScopeWritePackage,
+		auth_model.AccessTokenScopeAll,
+	); !has {
+		if err != nil {
+			log.Error("Error checking access scope: %v", err)
+		}
+		ctx.Status(http.StatusForbidden)
+		return
+	}
+
+	ctx.Status(http.StatusOK)
 }
 
 // RecipeSnapshot displays the recipe files with their md5 hash

routers/api/packages/container/auth.go

@@ -23,21 +23,26 @@ func (a *Auth) Name() string {
 // Verify extracts the user from the Bearer token
 // If it's an anonymous session a ghost user is returned
 func (a *Auth) Verify(req *http.Request, w http.ResponseWriter, store auth.DataStore, sess auth.SessionStore) (*user_model.User, error) {
-	uid, err := packages.ParseAuthorizationToken(req)
+	packageMeta, err := packages.ParseAuthorizationRequest(req)
 	if err != nil {
 		log.Trace("ParseAuthorizationToken: %v", err)
 		return nil, err
 	}
 
-	if uid == 0 {
+	if packageMeta == nil || packageMeta.UserID == 0 {
 		return nil, nil
 	}
 
-	u, err := user_model.GetPossibleUserByID(req.Context(), uid)
+	u, err := user_model.GetPossibleUserByID(req.Context(), packageMeta.UserID)
 	if err != nil {
 		log.Error("GetPossibleUserByID:  %v", err)
 		return nil, err
 	}
 
+	if packageMeta.Scope != "" {
+		store.GetData()["IsApiToken"] = true
+		store.GetData()["ApiTokenScope"] = packageMeta.Scope
+	}
+
 	return u, nil
 }

routers/api/packages/container/container.go

@@ -14,6 +14,7 @@ import (
 	"strconv"
 	"strings"
 
+	auth_model "code.gitea.io/gitea/models/auth"
 	packages_model "code.gitea.io/gitea/models/packages"
 	container_model "code.gitea.io/gitea/models/packages/container"
 	user_model "code.gitea.io/gitea/models/user"
@@ -25,6 +26,7 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/routers/api/packages/helper"
+	auth_service "code.gitea.io/gitea/services/auth"
 	"code.gitea.io/gitea/services/context"
 	packages_service "code.gitea.io/gitea/services/packages"
 	container_service "code.gitea.io/gitea/services/packages/container"
@@ -148,16 +150,29 @@ func DetermineSupport(ctx *context.Context) {
 // If the current user is anonymous, the ghost user is used unless RequireSignInView is enabled.
 func Authenticate(ctx *context.Context) {
 	u := ctx.Doer
+	packageScope := auth_service.GetAccessScope(ctx.Data)
 	if u == nil {
 		if setting.Service.RequireSignInView {
 			apiUnauthorizedError(ctx)
 			return
 		}
 
 		u = user_model.NewGhostUser()
+	} else {
+		if has, err := packageScope.HasAnyScope(
+			auth_model.AccessTokenScopeReadPackage,
+			auth_model.AccessTokenScopeWritePackage,
+			auth_model.AccessTokenScopeAll,
+		); !has {
+			if err != nil {
+				log.Error("Error checking access scope: %v", err)
+			}
+			apiUnauthorizedError(ctx)
+			return
+		}
 	}
 
-	token, err := packages_service.CreateAuthorizationToken(u)
+	token, err := packages_service.CreateAuthorizationToken(u, packageScope)
 	if err != nil {
 		apiError(ctx, http.StatusInternalServerError, err)
 		return

routers/api/packages/nuget/auth.go

@@ -43,5 +43,8 @@ func (a *Auth) Verify(req *http.Request, w http.ResponseWriter, store auth.DataS
 		log.Error("UpdateAccessToken:  %v", err)
 	}
 
+	store.GetData()["IsApiToken"] = true
+	store.GetData()["ApiToken"] = token
+
 	return u, nil
 }

services/auth/basic.go

@@ -25,7 +25,12 @@ var (
 )
 
 // BasicMethodName is the constant name of the basic authentication method
-const BasicMethodName = "basic"
+const (
+	BasicMethodName       = "basic"
+	AccessTokenMethodName = "access_token"
+	OAuth2TokenMethodName = "oauth2_token"
+	ActionTokenMethodName = "action_token"
+)
 
 // Basic implements the Auth interface and authenticates requests (API requests
 // only) by looking for Basic authentication data or "x-oauth-basic" token in the "Authorization"
@@ -82,6 +87,7 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
 			return nil, err
 		}
 
+		store.GetData()["LoginMethod"] = OAuth2TokenMethodName
 		store.GetData()["IsApiToken"] = true
 		return u, nil
 	}
@@ -101,6 +107,7 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
 			log.Error("UpdateAccessToken:  %v", err)
 		}
 
+		store.GetData()["LoginMethod"] = AccessTokenMethodName
 		store.GetData()["IsApiToken"] = true
 		store.GetData()["ApiTokenScope"] = token.Scope
 		return u, nil
@@ -113,6 +120,7 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
 	if err == nil && task != nil {
 		log.Trace("Basic Authorization: Valid AccessToken for task[%d]", task.ID)
 
+		store.GetData()["LoginMethod"] = ActionTokenMethodName
 		store.GetData()["IsActionsToken"] = true
 		store.GetData()["ActionsTaskID"] = task.ID
 
@@ -138,6 +146,7 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
 		}
 	}
 
+	store.GetData()["LoginMethod"] = BasicMethodName
 	log.Trace("Basic Authorization: Logged in user %-v", u)
 
 	return u, nil
@@ -159,3 +168,19 @@ func validateTOTP(req *http.Request, u *user_model.User) error {
 	}
 	return nil
 }
+
+func GetAccessScope(store DataStore) auth_model.AccessTokenScope {
+	if v, ok := store.GetData()["ApiTokenScope"]; ok {
+		return v.(auth_model.AccessTokenScope)
+	}
+	switch store.GetData()["LoginMethod"] {
+	case OAuth2TokenMethodName:
+		fallthrough
+	case BasicMethodName, AccessTokenMethodName:
+		return auth_model.AccessTokenScopeAll
+	case ActionTokenMethodName:
+		fallthrough
+	default:
+		return ""
+	}
+}

services/packages/auth.go

@@ -9,6 +9,7 @@ import (
 	"strings"
 	"time"
 
+	auth_model "code.gitea.io/gitea/models/auth"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
@@ -18,18 +19,25 @@ import (
 
 type packageClaims struct {
 	jwt.RegisteredClaims
+	PackageMeta
+}
+type PackageMeta struct {
 	UserID int64
+	Scope  auth_model.AccessTokenScope
 }
 
-func CreateAuthorizationToken(u *user_model.User) (string, error) {
+func CreateAuthorizationToken(u *user_model.User, packageScope auth_model.AccessTokenScope) (string, error) {
 	now := time.Now()
 
 	claims := packageClaims{
 		RegisteredClaims: jwt.RegisteredClaims{
 			ExpiresAt: jwt.NewNumericDate(now.Add(24 * time.Hour)),
 			NotBefore: jwt.NewNumericDate(now),
 		},
-		UserID: u.ID,
+		PackageMeta: PackageMeta{
+			UserID: u.ID,
+			Scope:  packageScope,
+		},
 	}
 	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
 
@@ -41,32 +49,36 @@ func CreateAuthorizationToken(u *user_model.User) (string, error) {
 	return tokenString, nil
 }
 
-func ParseAuthorizationToken(req *http.Request) (int64, error) {
+func ParseAuthorizationRequest(req *http.Request) (*PackageMeta, error) {
 	h := req.Header.Get("Authorization")
 	if h == "" {
-		return 0, nil
+		return nil, nil
 	}
 
 	parts := strings.SplitN(h, " ", 2)
 	if len(parts) != 2 {
 		log.Error("split token failed: %s", h)
-		return 0, fmt.Errorf("split token failed")
+		return nil, fmt.Errorf("split token failed")
 	}
 
-	token, err := jwt.ParseWithClaims(parts[1], &packageClaims{}, func(t *jwt.Token) (any, error) {
+	return ParseAuthorizationToken(parts[1])
+}
+
+func ParseAuthorizationToken(tokenStr string) (*PackageMeta, error) {
+	token, err := jwt.ParseWithClaims(tokenStr, &packageClaims{}, func(t *jwt.Token) (any, error) {
 		if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
 			return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
 		}
 		return setting.GetGeneralTokenSigningSecret(), nil
 	})
 	if err != nil {
-		return 0, err
+		return nil, err
 	}
 
 	c, ok := token.Claims.(*packageClaims)
 	if !token.Valid || !ok {
-		return 0, fmt.Errorf("invalid token claim")
+		return nil, fmt.Errorf("invalid token claim")
 	}
 
-	return c.UserID, nil
+	return &c.PackageMeta, nil
 }