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gitea/models/repo/attachment.go
JakobDev 42919ccb7c
Make Release Download URLs predictable (#23891)
As promised in #23817, I have this made a PR to make Release Download
URLs predictable. It currently follows the schema
`<repo>/releases/download/<tag>/<filename>`. this already works, but it
is nowhere shown in the UI or the API. The Problem is, that it is
currently possible to have multiple files with the same name (why do we
even allow this) for a release. I had written some Code to check, if a
Release has 2 or more files with the same Name. If yes, it uses the old
`attachments/<uuid>` URlL if no it uses the new fancy URL.

I had also changed `<repo>/releases/download/<tag>/<filename>` to
directly serve the File instead of redirecting, so people who who use
automatic update checker don't end up with the `attachments/<uuid>` URL.

Fixes #10919

---------

Co-authored-by: a1012112796 <1012112796@qq.com>
2023-04-12 17:05:23 +08:00

264 lines
9 KiB
Go

// Copyright 2017 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repo
import (
"context"
"fmt"
"net/url"
"path"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/storage"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
)
// Attachment represent a attachment of issue/comment/release.
type Attachment struct {
ID int64 `xorm:"pk autoincr"`
UUID string `xorm:"uuid UNIQUE"`
RepoID int64 `xorm:"INDEX"` // this should not be zero
IssueID int64 `xorm:"INDEX"` // maybe zero when creating
ReleaseID int64 `xorm:"INDEX"` // maybe zero when creating
UploaderID int64 `xorm:"INDEX DEFAULT 0"` // Notice: will be zero before this column added
CommentID int64
Name string
DownloadCount int64 `xorm:"DEFAULT 0"`
Size int64 `xorm:"DEFAULT 0"`
CreatedUnix timeutil.TimeStamp `xorm:"created"`
CustomDownloadURL string `xorm:"-"`
}
func init() {
db.RegisterModel(new(Attachment))
}
// IncreaseDownloadCount is update download count + 1
func (a *Attachment) IncreaseDownloadCount() error {
// Update download count.
if _, err := db.GetEngine(db.DefaultContext).Exec("UPDATE `attachment` SET download_count=download_count+1 WHERE id=?", a.ID); err != nil {
return fmt.Errorf("increase attachment count: %w", err)
}
return nil
}
// AttachmentRelativePath returns the relative path
func AttachmentRelativePath(uuid string) string {
return path.Join(uuid[0:1], uuid[1:2], uuid)
}
// RelativePath returns the relative path of the attachment
func (a *Attachment) RelativePath() string {
return AttachmentRelativePath(a.UUID)
}
// DownloadURL returns the download url of the attached file
func (a *Attachment) DownloadURL() string {
if a.CustomDownloadURL != "" {
return a.CustomDownloadURL
}
return setting.AppURL + "attachments/" + url.PathEscape(a.UUID)
}
// _____ __ __ .__ __
// / _ \_/ |__/ |______ ____ | |__ _____ ____ _____/ |_
// / /_\ \ __\ __\__ \ _/ ___\| | \ / \_/ __ \ / \ __\
// / | \ | | | / __ \\ \___| Y \ Y Y \ ___/| | \ |
// \____|__ /__| |__| (____ /\___ >___| /__|_| /\___ >___| /__|
// \/ \/ \/ \/ \/ \/ \/
// ErrAttachmentNotExist represents a "AttachmentNotExist" kind of error.
type ErrAttachmentNotExist struct {
ID int64
UUID string
}
// IsErrAttachmentNotExist checks if an error is a ErrAttachmentNotExist.
func IsErrAttachmentNotExist(err error) bool {
_, ok := err.(ErrAttachmentNotExist)
return ok
}
func (err ErrAttachmentNotExist) Error() string {
return fmt.Sprintf("attachment does not exist [id: %d, uuid: %s]", err.ID, err.UUID)
}
func (err ErrAttachmentNotExist) Unwrap() error {
return util.ErrNotExist
}
// GetAttachmentByID returns attachment by given id
func GetAttachmentByID(ctx context.Context, id int64) (*Attachment, error) {
attach := &Attachment{}
if has, err := db.GetEngine(ctx).ID(id).Get(attach); err != nil {
return nil, err
} else if !has {
return nil, ErrAttachmentNotExist{ID: id, UUID: ""}
}
return attach, nil
}
// GetAttachmentByUUID returns attachment by given UUID.
func GetAttachmentByUUID(ctx context.Context, uuid string) (*Attachment, error) {
attach := &Attachment{}
has, err := db.GetEngine(ctx).Where("uuid=?", uuid).Get(attach)
if err != nil {
return nil, err
} else if !has {
return nil, ErrAttachmentNotExist{0, uuid}
}
return attach, nil
}
// GetAttachmentsByUUIDs returns attachment by given UUID list.
func GetAttachmentsByUUIDs(ctx context.Context, uuids []string) ([]*Attachment, error) {
if len(uuids) == 0 {
return []*Attachment{}, nil
}
// Silently drop invalid uuids.
attachments := make([]*Attachment, 0, len(uuids))
return attachments, db.GetEngine(ctx).In("uuid", uuids).Find(&attachments)
}
// ExistAttachmentsByUUID returns true if attachment exists with the given UUID
func ExistAttachmentsByUUID(ctx context.Context, uuid string) (bool, error) {
return db.GetEngine(ctx).Where("`uuid`=?", uuid).Exist(new(Attachment))
}
// GetAttachmentsByIssueID returns all attachments of an issue.
func GetAttachmentsByIssueID(ctx context.Context, issueID int64) ([]*Attachment, error) {
attachments := make([]*Attachment, 0, 10)
return attachments, db.GetEngine(ctx).Where("issue_id = ? AND comment_id = 0", issueID).Find(&attachments)
}
// GetAttachmentsByIssueIDImagesLatest returns the latest image attachments of an issue.
func GetAttachmentsByIssueIDImagesLatest(ctx context.Context, issueID int64) ([]*Attachment, error) {
attachments := make([]*Attachment, 0, 5)
return attachments, db.GetEngine(ctx).Where(`issue_id = ? AND (name like '%.apng'
OR name like '%.avif'
OR name like '%.bmp'
OR name like '%.gif'
OR name like '%.jpg'
OR name like '%.jpeg'
OR name like '%.jxl'
OR name like '%.png'
OR name like '%.svg'
OR name like '%.webp')`, issueID).Desc("comment_id").Limit(5).Find(&attachments)
}
// GetAttachmentsByCommentID returns all attachments if comment by given ID.
func GetAttachmentsByCommentID(ctx context.Context, commentID int64) ([]*Attachment, error) {
attachments := make([]*Attachment, 0, 10)
return attachments, db.GetEngine(ctx).Where("comment_id=?", commentID).Find(&attachments)
}
// GetAttachmentByReleaseIDFileName returns attachment by given releaseId and fileName.
func GetAttachmentByReleaseIDFileName(ctx context.Context, releaseID int64, fileName string) (*Attachment, error) {
attach := &Attachment{ReleaseID: releaseID, Name: fileName}
has, err := db.GetEngine(ctx).Get(attach)
if err != nil {
return nil, err
} else if !has {
return nil, err
}
return attach, nil
}
// DeleteAttachment deletes the given attachment and optionally the associated file.
func DeleteAttachment(a *Attachment, remove bool) error {
_, err := DeleteAttachments(db.DefaultContext, []*Attachment{a}, remove)
return err
}
// DeleteAttachments deletes the given attachments and optionally the associated files.
func DeleteAttachments(ctx context.Context, attachments []*Attachment, remove bool) (int, error) {
if len(attachments) == 0 {
return 0, nil
}
ids := make([]int64, 0, len(attachments))
for _, a := range attachments {
ids = append(ids, a.ID)
}
cnt, err := db.GetEngine(ctx).In("id", ids).NoAutoCondition().Delete(attachments[0])
if err != nil {
return 0, err
}
if remove {
for i, a := range attachments {
if err := storage.Attachments.Delete(a.RelativePath()); err != nil {
return i, err
}
}
}
return int(cnt), nil
}
// DeleteAttachmentsByIssue deletes all attachments associated with the given issue.
func DeleteAttachmentsByIssue(issueID int64, remove bool) (int, error) {
attachments, err := GetAttachmentsByIssueID(db.DefaultContext, issueID)
if err != nil {
return 0, err
}
return DeleteAttachments(db.DefaultContext, attachments, remove)
}
// DeleteAttachmentsByComment deletes all attachments associated with the given comment.
func DeleteAttachmentsByComment(commentID int64, remove bool) (int, error) {
attachments, err := GetAttachmentsByCommentID(db.DefaultContext, commentID)
if err != nil {
return 0, err
}
return DeleteAttachments(db.DefaultContext, attachments, remove)
}
// UpdateAttachmentByUUID Updates attachment via uuid
func UpdateAttachmentByUUID(ctx context.Context, attach *Attachment, cols ...string) error {
if attach.UUID == "" {
return fmt.Errorf("attachment uuid should be not blank")
}
_, err := db.GetEngine(ctx).Where("uuid=?", attach.UUID).Cols(cols...).Update(attach)
return err
}
// UpdateAttachment updates the given attachment in database
func UpdateAttachment(ctx context.Context, atta *Attachment) error {
sess := db.GetEngine(ctx).Cols("name", "issue_id", "release_id", "comment_id", "download_count")
if atta.ID != 0 && atta.UUID == "" {
sess = sess.ID(atta.ID)
} else {
// Use uuid only if id is not set and uuid is set
sess = sess.Where("uuid = ?", atta.UUID)
}
_, err := sess.Update(atta)
return err
}
// DeleteAttachmentsByRelease deletes all attachments associated with the given release.
func DeleteAttachmentsByRelease(ctx context.Context, releaseID int64) error {
_, err := db.GetEngine(ctx).Where("release_id = ?", releaseID).Delete(&Attachment{})
return err
}
// CountOrphanedAttachments returns the number of bad attachments
func CountOrphanedAttachments(ctx context.Context) (int64, error) {
return db.GetEngine(ctx).Where("(issue_id > 0 and issue_id not in (select id from issue)) or (release_id > 0 and release_id not in (select id from `release`))").
Count(new(Attachment))
}
// DeleteOrphanedAttachments delete all bad attachments
func DeleteOrphanedAttachments(ctx context.Context) error {
_, err := db.GetEngine(ctx).Where("(issue_id > 0 and issue_id not in (select id from issue)) or (release_id > 0 and release_id not in (select id from `release`))").
Delete(new(Attachment))
return err
}