Move some errors to their own sub packages

models/organization/org_user.go

@@ -36,6 +36,21 @@ func init() {
 	db.RegisterModel(new(OrgUser))
 }
 
+// ErrUserHasOrgs represents a "UserHasOrgs" kind of error.
+type ErrUserHasOrgs struct {
+	UID int64
+}
+
+// IsErrUserHasOrgs checks if an error is a ErrUserHasOrgs.
+func IsErrUserHasOrgs(err error) bool {
+	_, ok := err.(ErrUserHasOrgs)
+	return ok
+}
+
+func (err ErrUserHasOrgs) Error() string {
+	return fmt.Sprintf("user still has membership of organizations [uid: %d]", err.UID)
+}
+
 // GetOrganizationCount returns count of membership of organization of the user.
 func GetOrganizationCount(ctx context.Context, u *user_model.User) (int64, error) {
 	return db.GetEngine(ctx).

models/packages/package.go

@@ -301,6 +301,21 @@ func FindUnreferencedPackages(ctx context.Context) ([]*Package, error) {
 		Find(&ps)
 }
 
+// ErrUserOwnPackages notifies that the user (still) owns the packages.
+type ErrUserOwnPackages struct {
+	UID int64
+}
+
+// IsErrUserOwnPackages checks if an error is an ErrUserOwnPackages.
+func IsErrUserOwnPackages(err error) bool {
+	_, ok := err.(ErrUserOwnPackages)
+	return ok
+}
+
+func (err ErrUserOwnPackages) Error() string {
+	return fmt.Sprintf("user still has ownership of packages [uid: %d]", err.UID)
+}
+
 // HasOwnerPackages tests if a user/org has accessible packages
 func HasOwnerPackages(ctx context.Context, ownerID int64) (bool, error) {
 	return db.GetEngine(ctx).

models/repo/repo.go

@@ -37,7 +37,7 @@ type ErrUserDoesNotHaveAccessToRepo struct {
 	RepoName string
 }
 
-// IsErrUserDoesNotHaveAccessToRepo checks if an error is a ErrRepoFileAlreadyExists.
+// IsErrUserDoesNotHaveAccessToRepo checks if an error is a ErrUserDoesNotHaveAccessToRepo.
 func IsErrUserDoesNotHaveAccessToRepo(err error) bool {
 	_, ok := err.(ErrUserDoesNotHaveAccessToRepo)
 	return ok
@@ -866,6 +866,21 @@ func (repo *Repository) TemplateRepo(ctx context.Context) *Repository {
 	return repo
 }
 
+// ErrUserOwnRepos represents a "UserOwnRepos" kind of error.
+type ErrUserOwnRepos struct {
+	UID int64
+}
+
+// IsErrUserOwnRepos checks if an error is a ErrUserOwnRepos.
+func IsErrUserOwnRepos(err error) bool {
+	_, ok := err.(ErrUserOwnRepos)
+	return ok
+}
+
+func (err ErrUserOwnRepos) Error() string {
+	return fmt.Sprintf("user still has ownership of repositories [uid: %d]", err.UID)
+}
+
 type CountRepositoryOptions struct {
 	OwnerID int64
 	Private optional.Option[bool]

models/user/user.go

@@ -788,6 +788,21 @@ func createUser(ctx context.Context, u *User, meta *Meta, createdByAdmin bool, o
 	return committer.Commit()
 }
 
+// ErrDeleteLastAdminUser represents a "DeleteLastAdminUser" kind of error.
+type ErrDeleteLastAdminUser struct {
+	UID int64
+}
+
+// IsErrDeleteLastAdminUser checks if an error is a ErrDeleteLastAdminUser.
+func IsErrDeleteLastAdminUser(err error) bool {
+	_, ok := err.(ErrDeleteLastAdminUser)
+	return ok
+}
+
+func (err ErrDeleteLastAdminUser) Error() string {
+	return fmt.Sprintf("can not delete the last admin user [uid: %d]", err.UID)
+}
+
 // IsLastAdminUser check whether user is the last admin
 func IsLastAdminUser(ctx context.Context, user *User) bool {
 	if user.IsAdmin && CountUsers(ctx, &CountUserFilter{IsAdmin: optional.Some(true)}) <= 1 {

modules/git/remote.go

@@ -5,8 +5,12 @@ package git
 
 import (
 	"context"
+	"fmt"
+	"net/url"
+	"strings"
 
 	giturl "code.gitea.io/gitea/modules/git/url"
+	"code.gitea.io/gitea/modules/util"
 )
 
 // GetRemoteAddress returns remote url of git repository in the repoPath with special remote name
@@ -37,3 +41,61 @@ func GetRemoteURL(ctx context.Context, repoPath, remoteName string) (*giturl.Git
 	}
 	return giturl.Parse(addr)
 }
+
+// ErrInvalidCloneAddr represents a "InvalidCloneAddr" kind of error.
+type ErrInvalidCloneAddr struct {
+	Host               string
+	IsURLError         bool
+	IsInvalidPath      bool
+	IsProtocolInvalid  bool
+	IsPermissionDenied bool
+	LocalPath          bool
+}
+
+// IsErrInvalidCloneAddr checks if an error is a ErrInvalidCloneAddr.
+func IsErrInvalidCloneAddr(err error) bool {
+	_, ok := err.(*ErrInvalidCloneAddr)
+	return ok
+}
+
+func (err *ErrInvalidCloneAddr) Error() string {
+	if err.IsInvalidPath {
+		return fmt.Sprintf("migration/cloning from '%s' is not allowed: the provided path is invalid", err.Host)
+	}
+	if err.IsProtocolInvalid {
+		return fmt.Sprintf("migration/cloning from '%s' is not allowed: the provided url protocol is not allowed", err.Host)
+	}
+	if err.IsPermissionDenied {
+		return fmt.Sprintf("migration/cloning from '%s' is not allowed.", err.Host)
+	}
+	if err.IsURLError {
+		return fmt.Sprintf("migration/cloning from '%s' is not allowed: the provided url is invalid", err.Host)
+	}
+
+	return fmt.Sprintf("migration/cloning from '%s' is not allowed", err.Host)
+}
+
+func (err *ErrInvalidCloneAddr) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ParseRemoteAddr checks if given remote address is valid,
+// and returns composed URL with needed username and password.
+func ParseRemoteAddr(remoteAddr, authUsername, authPassword string) (string, error) {
+	remoteAddr = strings.TrimSpace(remoteAddr)
+	// Remote address can be HTTP/HTTPS/Git URL or local path.
+	if strings.HasPrefix(remoteAddr, "http://") ||
+		strings.HasPrefix(remoteAddr, "https://") ||
+		strings.HasPrefix(remoteAddr, "git://") {
+		u, err := url.Parse(remoteAddr)
+		if err != nil {
+			return "", &ErrInvalidCloneAddr{IsURLError: true, Host: remoteAddr}
+		}
+		if len(authUsername)+len(authPassword) > 0 {
+			u.User = url.UserPassword(authUsername, authPassword)
+		}
+		remoteAddr = u.String()
+	}
+
+	return remoteAddr, nil
+}

routers/api/v1/admin/user.go

@@ -9,10 +9,12 @@ import (
 	"fmt"
 	"net/http"
 
-	"code.gitea.io/gitea/models"
 	asymkey_model "code.gitea.io/gitea/models/asymkey"
 	"code.gitea.io/gitea/models/auth"
 	"code.gitea.io/gitea/models/db"
+	org_model "code.gitea.io/gitea/models/organization"
+	packages_model "code.gitea.io/gitea/models/packages"
+	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/auth/password"
 	"code.gitea.io/gitea/modules/log"
@@ -247,7 +249,7 @@ func EditUser(ctx *context.APIContext) {
 	}
 
 	if err := user_service.UpdateUser(ctx, ctx.ContextUser, opts); err != nil {
-		if models.IsErrDeleteLastAdminUser(err) {
+		if user_model.IsErrDeleteLastAdminUser(err) {
 			ctx.Error(http.StatusBadRequest, "LastAdmin", err)
 		} else {
 			ctx.Error(http.StatusInternalServerError, "UpdateUser", err)
@@ -299,10 +301,10 @@ func DeleteUser(ctx *context.APIContext) {
 	}
 
 	if err := user_service.DeleteUser(ctx, ctx.ContextUser, ctx.FormBool("purge")); err != nil {
-		if models.IsErrUserOwnRepos(err) ||
-			models.IsErrUserHasOrgs(err) ||
-			models.IsErrUserOwnPackages(err) ||
-			models.IsErrDeleteLastAdminUser(err) {
+		if repo_model.IsErrUserOwnRepos(err) ||
+			org_model.IsErrUserHasOrgs(err) ||
+			packages_model.IsErrUserOwnPackages(err) ||
+			user_model.IsErrDeleteLastAdminUser(err) {
 			ctx.Error(http.StatusUnprocessableEntity, "", err)
 		} else {
 			ctx.Error(http.StatusInternalServerError, "DeleteUser", err)

routers/api/v1/repo/branch.go

@@ -9,7 +9,6 @@ import (
 	"fmt"
 	"net/http"
 
-	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/models/db"
 	git_model "code.gitea.io/gitea/models/git"
 	"code.gitea.io/gitea/models/organization"
@@ -24,6 +23,7 @@ import (
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/convert"
 	pull_service "code.gitea.io/gitea/services/pull"
+	release_service "code.gitea.io/gitea/services/release"
 	repo_service "code.gitea.io/gitea/services/repository"
 )
 
@@ -247,7 +247,7 @@ func CreateBranch(ctx *context.APIContext) {
 	if err != nil {
 		if git_model.IsErrBranchNotExist(err) {
 			ctx.Error(http.StatusNotFound, "", "The old branch does not exist")
-		} else if models.IsErrTagAlreadyExists(err) {
+		} else if release_service.IsErrTagAlreadyExists(err) {
 			ctx.Error(http.StatusConflict, "", "The branch with the same tag already exists.")
 		} else if git_model.IsErrBranchAlreadyExists(err) || git.IsErrPushOutOfDate(err) {
 			ctx.Error(http.StatusConflict, "", "The branch already exists.")

routers/api/v1/repo/file.go

@@ -15,7 +15,6 @@ import (
 	"strings"
 	"time"
 
-	"code.gitea.io/gitea/models"
 	git_model "code.gitea.io/gitea/models/git"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
@@ -30,6 +29,7 @@ import (
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/common"
 	"code.gitea.io/gitea/services/context"
+	pull_service "code.gitea.io/gitea/services/pull"
 	archiver_service "code.gitea.io/gitea/services/repository/archiver"
 	files_service "code.gitea.io/gitea/services/repository/files"
 )
@@ -736,12 +736,12 @@ func UpdateFile(ctx *context.APIContext) {
 }
 
 func handleCreateOrUpdateFileError(ctx *context.APIContext, err error) {
-	if models.IsErrUserCannotCommit(err) || models.IsErrFilePathProtected(err) {
+	if files_service.IsErrUserCannotCommit(err) || pull_service.IsErrFilePathProtected(err) {
 		ctx.Error(http.StatusForbidden, "Access", err)
 		return
 	}
-	if git_model.IsErrBranchAlreadyExists(err) || models.IsErrFilenameInvalid(err) || models.IsErrSHADoesNotMatch(err) ||
-		models.IsErrFilePathInvalid(err) || models.IsErrRepoFileAlreadyExists(err) {
+	if git_model.IsErrBranchAlreadyExists(err) || files_service.IsErrFilenameInvalid(err) || pull_service.IsErrSHADoesNotMatch(err) ||
+		files_service.IsErrFilePathInvalid(err) || files_service.IsErrRepoFileAlreadyExists(err) {
 		ctx.Error(http.StatusUnprocessableEntity, "Invalid", err)
 		return
 	}
@@ -887,17 +887,17 @@ func DeleteFile(ctx *context.APIContext) {
 	}
 
 	if filesResponse, err := files_service.ChangeRepoFiles(ctx, ctx.Repo.Repository, ctx.Doer, opts); err != nil {
-		if git.IsErrBranchNotExist(err) || models.IsErrRepoFileDoesNotExist(err) || git.IsErrNotExist(err) {
+		if git.IsErrBranchNotExist(err) || files_service.IsErrRepoFileDoesNotExist(err) || git.IsErrNotExist(err) {
 			ctx.Error(http.StatusNotFound, "DeleteFile", err)
 			return
 		} else if git_model.IsErrBranchAlreadyExists(err) ||
-			models.IsErrFilenameInvalid(err) ||
-			models.IsErrSHADoesNotMatch(err) ||
-			models.IsErrCommitIDDoesNotMatch(err) ||
-			models.IsErrSHAOrCommitIDNotProvided(err) {
+			files_service.IsErrFilenameInvalid(err) ||
+			pull_service.IsErrSHADoesNotMatch(err) ||
+			files_service.IsErrCommitIDDoesNotMatch(err) ||
+			files_service.IsErrSHAOrCommitIDNotProvided(err) {
 			ctx.Error(http.StatusBadRequest, "DeleteFile", err)
 			return
-		} else if models.IsErrUserCannotCommit(err) {
+		} else if files_service.IsErrUserCannotCommit(err) {
 			ctx.Error(http.StatusForbidden, "DeleteFile", err)
 			return
 		}

routers/api/v1/repo/migrate.go

@@ -10,13 +10,13 @@ import (
 	"net/http"
 	"strings"
 
-	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/models/organization"
 	"code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/graceful"
 	"code.gitea.io/gitea/modules/lfs"
 	"code.gitea.io/gitea/modules/log"
@@ -27,7 +27,6 @@ import (
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/convert"
-	"code.gitea.io/gitea/services/forms"
 	"code.gitea.io/gitea/services/migrations"
 	notify_service "code.gitea.io/gitea/services/notify"
 	repo_service "code.gitea.io/gitea/services/repository"
@@ -104,7 +103,7 @@ func Migrate(ctx *context.APIContext) {
 		}
 	}
 
-	remoteAddr, err := forms.ParseRemoteAddr(form.CloneAddr, form.AuthUsername, form.AuthPassword)
+	remoteAddr, err := git.ParseRemoteAddr(form.CloneAddr, form.AuthUsername, form.AuthPassword)
 	if err == nil {
 		err = migrations.IsMigrateURLAllowed(remoteAddr, ctx.Doer)
 	}
@@ -237,7 +236,7 @@ func handleMigrateError(ctx *context.APIContext, repoOwner *user_model.User, err
 		ctx.Error(http.StatusUnprocessableEntity, "", fmt.Sprintf("The username '%s' contains invalid characters.", err.(db.ErrNameCharsNotAllowed).Name))
 	case db.IsErrNamePatternNotAllowed(err):
 		ctx.Error(http.StatusUnprocessableEntity, "", fmt.Sprintf("The pattern '%s' is not allowed in a username.", err.(db.ErrNamePatternNotAllowed).Pattern))
-	case models.IsErrInvalidCloneAddr(err):
+	case git.IsErrInvalidCloneAddr(err):
 		ctx.Error(http.StatusUnprocessableEntity, "", err)
 	case base.IsErrNotSupported(err):
 		ctx.Error(http.StatusUnprocessableEntity, "", err)
@@ -256,8 +255,8 @@ func handleMigrateError(ctx *context.APIContext, repoOwner *user_model.User, err
 }
 
 func handleRemoteAddrError(ctx *context.APIContext, err error) {
-	if models.IsErrInvalidCloneAddr(err) {
-		addrErr := err.(*models.ErrInvalidCloneAddr)
+	if git.IsErrInvalidCloneAddr(err) {
+		addrErr := err.(*git.ErrInvalidCloneAddr)
 		switch {
 		case addrErr.IsURLError:
 			ctx.Error(http.StatusUnprocessableEntity, "", err)

routers/api/v1/repo/mirror.go

@@ -9,18 +9,17 @@ import (
 	"net/http"
 	"time"
 
-	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/models/db"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/api/v1/utils"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/convert"
-	"code.gitea.io/gitea/services/forms"
 	"code.gitea.io/gitea/services/migrations"
 	mirror_service "code.gitea.io/gitea/services/mirror"
 )
@@ -344,7 +343,7 @@ func CreatePushMirror(ctx *context.APIContext, mirrorOption *api.CreatePushMirro
 		return
 	}
 
-	address, err := forms.ParseRemoteAddr(mirrorOption.RemoteAddress, mirrorOption.RemoteUsername, mirrorOption.RemotePassword)
+	address, err := git.ParseRemoteAddr(mirrorOption.RemoteAddress, mirrorOption.RemoteUsername, mirrorOption.RemotePassword)
 	if err == nil {
 		err = migrations.IsMigrateURLAllowed(address, ctx.ContextUser)
 	}
@@ -397,8 +396,8 @@ func CreatePushMirror(ctx *context.APIContext, mirrorOption *api.CreatePushMirro
 }
 
 func HandleRemoteAddressError(ctx *context.APIContext, err error) {
-	if models.IsErrInvalidCloneAddr(err) {
-		addrErr := err.(*models.ErrInvalidCloneAddr)
+	if git.IsErrInvalidCloneAddr(err) {
+		addrErr := err.(*git.ErrInvalidCloneAddr)
 		switch {
 		case addrErr.IsProtocolInvalid:
 			ctx.Error(http.StatusBadRequest, "CreatePushMirror", "Invalid mirror protocol")