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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"context"
"crypto/md5"
"fmt"
"image/png"
"io"
"strconv"
"code.gitea.io/gitea/models/db"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/avatar"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/storage"
)
// RemoveRandomAvatars removes the randomly generated avatars that were created for repositories
func RemoveRandomAvatars(ctx context.Context) error {
return db.GetEngine(db.DefaultContext).
Where("id > 0").BufferSize(setting.Database.IterateBufferSize).
Iterate(new(repo_model.Repository),
func(idx int, bean interface{}) error {
repository := bean.(*repo_model.Repository)
select {
case <-ctx.Done():
return db.ErrCancelledf("before random avatars removed for %s", repository.FullName())
default:
}
stringifiedID := strconv.FormatInt(repository.ID, 10)
if repository.Avatar == stringifiedID {
return DeleteRepoAvatar(repository)
}
return nil
})
}
// UploadRepoAvatar saves custom avatar for repository.
// FIXME: split uploads to different subdirs in case we have massive number of repos.
func UploadRepoAvatar(repo *repo_model.Repository, data []byte) error {
m, err := avatar.Prepare(data)
if err != nil {
return err
}
newAvatar := fmt.Sprintf("%d-%x", repo.ID, md5.Sum(data))
if repo.Avatar == newAvatar { // upload the same picture
return nil
}
ctx, committer, err := db.TxContext()
if err != nil {
return err
}
defer committer.Close()
oldAvatarPath := repo.CustomAvatarRelativePath()
// Users can upload the same image to other repo - prefix it with ID
// Then repo will be removed - only it avatar file will be removed
repo.Avatar = newAvatar
if _, err := db.GetEngine(ctx).ID(repo.ID).Cols("avatar").Update(repo); err != nil {
return fmt.Errorf("UploadAvatar: Update repository avatar: %v", err)
}
if err := storage.SaveFrom(storage.RepoAvatars, repo.CustomAvatarRelativePath(), func(w io.Writer) error {
if err := png.Encode(w, *m); err != nil {
log.Error("Encode: %v", err)
}
return err
}); err != nil {
return fmt.Errorf("UploadAvatar %s failed: Failed to remove old repo avatar %s: %v", repo.RepoPath(), newAvatar, err)
}
if len(oldAvatarPath) > 0 {
if err := storage.RepoAvatars.Delete(oldAvatarPath); err != nil {
return fmt.Errorf("UploadAvatar: Failed to remove old repo avatar %s: %v", oldAvatarPath, err)
}
}
return committer.Commit()
}
// DeleteRepoAvatar deletes the repos's custom avatar.
func DeleteRepoAvatar(repo *repo_model.Repository) error {
// Avatar not exists
if len(repo.Avatar) == 0 {
return nil
}
avatarPath := repo.CustomAvatarRelativePath()
log.Trace("DeleteAvatar[%d]: %s", repo.ID, avatarPath)
ctx, committer, err := db.TxContext()
if err != nil {
return err
}
defer committer.Close()
repo.Avatar = ""
if _, err := db.GetEngine(ctx).ID(repo.ID).Cols("avatar").Update(repo); err != nil {
return fmt.Errorf("DeleteAvatar: Update repository avatar: %v", err)
}
if err := storage.RepoAvatars.Delete(avatarPath); err != nil {
return fmt.Errorf("DeleteAvatar: Failed to remove %s: %v", avatarPath, err)
}
return committer.Commit()
}
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