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9302eba971
* DBContext is just a Context This PR removes some of the specialness from the DBContext and makes it context This allows us to simplify the GetEngine code to wrap around any context in future and means that we can change our loadRepo(e Engine) functions to simply take contexts. Signed-off-by: Andrew Thornton <art27@cantab.net> * fix unit tests Signed-off-by: Andrew Thornton <art27@cantab.net> * another place that needs to set the initial context Signed-off-by: Andrew Thornton <art27@cantab.net> * avoid race Signed-off-by: Andrew Thornton <art27@cantab.net> * change attachment error Signed-off-by: Andrew Thornton <art27@cantab.net>
191 lines
5.4 KiB
Go
191 lines
5.4 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package models
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import (
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"context"
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"crypto/md5"
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"fmt"
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"image/png"
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"io"
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"strconv"
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"strings"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/modules/avatar"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/storage"
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)
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// CustomAvatarRelativePath returns repository custom avatar file path.
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func (repo *Repository) CustomAvatarRelativePath() string {
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return repo.Avatar
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}
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// generateRandomAvatar generates a random avatar for repository.
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func (repo *Repository) generateRandomAvatar(e db.Engine) error {
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idToString := fmt.Sprintf("%d", repo.ID)
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seed := idToString
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img, err := avatar.RandomImage([]byte(seed))
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if err != nil {
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return fmt.Errorf("RandomImage: %v", err)
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}
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repo.Avatar = idToString
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if err := storage.SaveFrom(storage.RepoAvatars, repo.CustomAvatarRelativePath(), func(w io.Writer) error {
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if err := png.Encode(w, img); err != nil {
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log.Error("Encode: %v", err)
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}
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return err
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}); err != nil {
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return fmt.Errorf("Failed to create dir %s: %v", repo.CustomAvatarRelativePath(), err)
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}
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log.Info("New random avatar created for repository: %d", repo.ID)
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if _, err := e.ID(repo.ID).Cols("avatar").NoAutoTime().Update(repo); err != nil {
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return err
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}
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return nil
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}
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// RemoveRandomAvatars removes the randomly generated avatars that were created for repositories
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func RemoveRandomAvatars(ctx context.Context) error {
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return db.GetEngine(db.DefaultContext).
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Where("id > 0").BufferSize(setting.Database.IterateBufferSize).
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Iterate(new(Repository),
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func(idx int, bean interface{}) error {
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repository := bean.(*Repository)
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select {
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case <-ctx.Done():
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return ErrCancelledf("before random avatars removed for %s", repository.FullName())
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default:
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}
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stringifiedID := strconv.FormatInt(repository.ID, 10)
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if repository.Avatar == stringifiedID {
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return repository.DeleteAvatar()
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}
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return nil
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})
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}
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// RelAvatarLink returns a relative link to the repository's avatar.
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func (repo *Repository) RelAvatarLink() string {
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return repo.relAvatarLink(db.GetEngine(db.DefaultContext))
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}
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func (repo *Repository) relAvatarLink(e db.Engine) string {
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// If no avatar - path is empty
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avatarPath := repo.CustomAvatarRelativePath()
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if len(avatarPath) == 0 {
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switch mode := setting.RepoAvatar.Fallback; mode {
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case "image":
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return setting.RepoAvatar.FallbackImage
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case "random":
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if err := repo.generateRandomAvatar(e); err != nil {
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log.Error("generateRandomAvatar: %v", err)
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}
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default:
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// default behaviour: do not display avatar
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return ""
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}
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}
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return setting.AppSubURL + "/repo-avatars/" + repo.Avatar
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}
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// AvatarLink returns a link to the repository's avatar.
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func (repo *Repository) AvatarLink() string {
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return repo.avatarLink(db.GetEngine(db.DefaultContext))
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}
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// avatarLink returns user avatar absolute link.
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func (repo *Repository) avatarLink(e db.Engine) string {
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link := repo.relAvatarLink(e)
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// link may be empty!
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if len(link) > 0 {
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if link[0] == '/' && link[1] != '/' {
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return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL)[1:]
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}
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}
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return link
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}
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// UploadAvatar saves custom avatar for repository.
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// FIXME: split uploads to different subdirs in case we have massive number of repos.
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func (repo *Repository) UploadAvatar(data []byte) error {
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m, err := avatar.Prepare(data)
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if err != nil {
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return err
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}
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newAvatar := fmt.Sprintf("%d-%x", repo.ID, md5.Sum(data))
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if repo.Avatar == newAvatar { // upload the same picture
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return nil
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}
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sess := db.NewSession(db.DefaultContext)
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defer sess.Close()
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if err = sess.Begin(); err != nil {
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return err
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}
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oldAvatarPath := repo.CustomAvatarRelativePath()
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// Users can upload the same image to other repo - prefix it with ID
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// Then repo will be removed - only it avatar file will be removed
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repo.Avatar = newAvatar
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if _, err := sess.ID(repo.ID).Cols("avatar").Update(repo); err != nil {
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return fmt.Errorf("UploadAvatar: Update repository avatar: %v", err)
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}
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if err := storage.SaveFrom(storage.RepoAvatars, repo.CustomAvatarRelativePath(), func(w io.Writer) error {
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if err := png.Encode(w, *m); err != nil {
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log.Error("Encode: %v", err)
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}
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return err
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}); err != nil {
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return fmt.Errorf("UploadAvatar %s failed: Failed to remove old repo avatar %s: %v", repo.RepoPath(), newAvatar, err)
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}
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if len(oldAvatarPath) > 0 {
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if err := storage.RepoAvatars.Delete(oldAvatarPath); err != nil {
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return fmt.Errorf("UploadAvatar: Failed to remove old repo avatar %s: %v", oldAvatarPath, err)
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}
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}
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return sess.Commit()
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}
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// DeleteAvatar deletes the repos's custom avatar.
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func (repo *Repository) DeleteAvatar() error {
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// Avatar not exists
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if len(repo.Avatar) == 0 {
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return nil
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}
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avatarPath := repo.CustomAvatarRelativePath()
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log.Trace("DeleteAvatar[%d]: %s", repo.ID, avatarPath)
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sess := db.NewSession(db.DefaultContext)
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defer sess.Close()
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if err := sess.Begin(); err != nil {
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return err
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}
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repo.Avatar = ""
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if _, err := sess.ID(repo.ID).Cols("avatar").Update(repo); err != nil {
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return fmt.Errorf("DeleteAvatar: Update repository avatar: %v", err)
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}
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if err := storage.RepoAvatars.Delete(avatarPath); err != nil {
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return fmt.Errorf("DeleteAvatar: Failed to remove %s: %v", avatarPath, err)
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}
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return sess.Commit()
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}
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