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forgejo/models/attachment.go
zeripath 9302eba971
DBContext is just a Context (#17100)
* 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>
2021-09-23 23:45:36 +08:00

293 lines
9.4 KiB
Go

// Copyright 2017 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"
"fmt"
"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"
"xorm.io/xorm"
)
// 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"`
}
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: %v", 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 {
return fmt.Sprintf("%sattachments/%s", setting.AppURL, a.UUID)
}
// LinkedRepository returns the linked repo if any
func (a *Attachment) LinkedRepository() (*Repository, UnitType, error) {
if a.IssueID != 0 {
iss, err := GetIssueByID(a.IssueID)
if err != nil {
return nil, UnitTypeIssues, err
}
repo, err := GetRepositoryByID(iss.RepoID)
unitType := UnitTypeIssues
if iss.IsPull {
unitType = UnitTypePullRequests
}
return repo, unitType, err
} else if a.ReleaseID != 0 {
rel, err := GetReleaseByID(a.ReleaseID)
if err != nil {
return nil, UnitTypeReleases, err
}
repo, err := GetRepositoryByID(rel.RepoID)
return repo, UnitTypeReleases, err
}
return nil, -1, nil
}
// GetAttachmentByID returns attachment by given id
func GetAttachmentByID(id int64) (*Attachment, error) {
return getAttachmentByID(db.GetEngine(db.DefaultContext), id)
}
func getAttachmentByID(e db.Engine, id int64) (*Attachment, error) {
attach := &Attachment{}
if has, err := e.ID(id).Get(attach); err != nil {
return nil, err
} else if !has {
return nil, ErrAttachmentNotExist{ID: id, UUID: ""}
}
return attach, nil
}
func getAttachmentByUUID(e db.Engine, uuid string) (*Attachment, error) {
attach := &Attachment{}
has, err := e.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) {
return getAttachmentsByUUIDs(db.GetEngine(ctx), uuids)
}
func getAttachmentsByUUIDs(e db.Engine, uuids []string) ([]*Attachment, error) {
if len(uuids) == 0 {
return []*Attachment{}, nil
}
// Silently drop invalid uuids.
attachments := make([]*Attachment, 0, len(uuids))
return attachments, e.In("uuid", uuids).Find(&attachments)
}
// GetAttachmentByUUID returns attachment by given UUID.
func GetAttachmentByUUID(uuid string) (*Attachment, error) {
return getAttachmentByUUID(db.GetEngine(db.DefaultContext), uuid)
}
// ExistAttachmentsByUUID returns true if attachment is exist by given UUID
func ExistAttachmentsByUUID(uuid string) (bool, error) {
return db.GetEngine(db.DefaultContext).Where("`uuid`=?", uuid).Exist(new(Attachment))
}
// GetAttachmentByReleaseIDFileName returns attachment by given releaseId and fileName.
func GetAttachmentByReleaseIDFileName(releaseID int64, fileName string) (*Attachment, error) {
return getAttachmentByReleaseIDFileName(db.GetEngine(db.DefaultContext), releaseID, fileName)
}
func getAttachmentsByIssueID(e db.Engine, issueID int64) ([]*Attachment, error) {
attachments := make([]*Attachment, 0, 10)
return attachments, e.Where("issue_id = ? AND comment_id = 0", issueID).Find(&attachments)
}
// GetAttachmentsByIssueID returns all attachments of an issue.
func GetAttachmentsByIssueID(issueID int64) ([]*Attachment, error) {
return getAttachmentsByIssueID(db.GetEngine(db.DefaultContext), issueID)
}
// GetAttachmentsByCommentID returns all attachments if comment by given ID.
func GetAttachmentsByCommentID(commentID int64) ([]*Attachment, error) {
return getAttachmentsByCommentID(db.GetEngine(db.DefaultContext), commentID)
}
func getAttachmentsByCommentID(e db.Engine, commentID int64) ([]*Attachment, error) {
attachments := make([]*Attachment, 0, 10)
return attachments, e.Where("comment_id=?", commentID).Find(&attachments)
}
// getAttachmentByReleaseIDFileName return a file based on the the following infos:
func getAttachmentByReleaseIDFileName(e db.Engine, releaseID int64, fileName string) (*Attachment, error) {
attach := &Attachment{ReleaseID: releaseID, Name: fileName}
has, err := e.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(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(commentID)
if err != nil {
return 0, err
}
return DeleteAttachments(db.DefaultContext, attachments, remove)
}
// UpdateAttachment updates the given attachment in database
func UpdateAttachment(atta *Attachment) error {
return updateAttachment(db.GetEngine(db.DefaultContext), atta)
}
// 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
}
func updateAttachment(e db.Engine, atta *Attachment) error {
var sess *xorm.Session
if atta.ID != 0 && atta.UUID == "" {
sess = e.ID(atta.ID)
} else {
// Use uuid only if id is not set and uuid is set
sess = e.Where("uuid = ?", atta.UUID)
}
_, err := sess.Cols("name", "issue_id", "release_id", "comment_id", "download_count").Update(atta)
return err
}
// DeleteAttachmentsByRelease deletes all attachments associated with the given release.
func DeleteAttachmentsByRelease(releaseID int64) error {
_, err := db.GetEngine(db.DefaultContext).Where("release_id = ?", releaseID).Delete(&Attachment{})
return err
}
// IterateAttachment iterates attachments; it should not be used when Gitea is servicing users.
func IterateAttachment(f func(attach *Attachment) error) error {
var start int
const batchSize = 100
for {
attachments := make([]*Attachment, 0, batchSize)
if err := db.GetEngine(db.DefaultContext).Limit(batchSize, start).Find(&attachments); err != nil {
return err
}
if len(attachments) == 0 {
return nil
}
start += len(attachments)
for _, attach := range attachments {
if err := f(attach); err != nil {
return err
}
}
}
}
// CountOrphanedAttachments returns the number of bad attachments
func CountOrphanedAttachments() (int64, error) {
return db.GetEngine(db.DefaultContext).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() error {
_, err := db.GetEngine(db.DefaultContext).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
}