mirror of
https://github.com/go-gitea/gitea.git
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189 lines
5.1 KiB
Go
189 lines
5.1 KiB
Go
// Copyright 2017 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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"fmt"
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"io"
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"mime/multipart"
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"os"
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"path"
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"time"
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"github.com/go-xorm/xorm"
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gouuid "github.com/satori/go.uuid"
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"code.gitea.io/gitea/modules/setting"
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)
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// Attachment represent a attachment of issue/comment/release.
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type Attachment struct {
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ID int64 `xorm:"pk autoincr"`
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UUID string `xorm:"uuid UNIQUE"`
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IssueID int64 `xorm:"INDEX"`
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ReleaseID int64 `xorm:"INDEX"`
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CommentID int64
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Name string
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DownloadCount int64 `xorm:"DEFAULT 0"`
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Created time.Time `xorm:"-"`
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CreatedUnix int64
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}
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// BeforeInsert is invoked from XORM before inserting an object of this type.
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func (a *Attachment) BeforeInsert() {
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a.CreatedUnix = time.Now().Unix()
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}
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// AfterSet is invoked from XORM after setting the value of a field of
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// this object.
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func (a *Attachment) AfterSet(colName string, _ xorm.Cell) {
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switch colName {
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case "created_unix":
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a.Created = time.Unix(a.CreatedUnix, 0).Local()
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}
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}
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// IncreaseDownloadCount is update download count + 1
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func (a *Attachment) IncreaseDownloadCount() error {
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sess := x.NewSession()
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defer sess.Close()
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// Update download count.
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if _, err := sess.Exec("UPDATE `attachment` SET download_count=download_count+1 WHERE id=?", a.ID); err != nil {
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return fmt.Errorf("increase attachment count: %v", err)
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}
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return nil
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}
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// AttachmentLocalPath returns where attachment is stored in local file
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// system based on given UUID.
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func AttachmentLocalPath(uuid string) string {
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return path.Join(setting.AttachmentPath, uuid[0:1], uuid[1:2], uuid)
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}
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// LocalPath returns where attachment is stored in local file system.
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func (a *Attachment) LocalPath() string {
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return AttachmentLocalPath(a.UUID)
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}
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// NewAttachment creates a new attachment object.
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func NewAttachment(name string, buf []byte, file multipart.File) (_ *Attachment, err error) {
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attach := &Attachment{
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UUID: gouuid.NewV4().String(),
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Name: name,
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}
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localPath := attach.LocalPath()
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if err = os.MkdirAll(path.Dir(localPath), os.ModePerm); err != nil {
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return nil, fmt.Errorf("MkdirAll: %v", err)
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}
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fw, err := os.Create(localPath)
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if err != nil {
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return nil, fmt.Errorf("Create: %v", err)
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}
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defer fw.Close()
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if _, err = fw.Write(buf); err != nil {
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return nil, fmt.Errorf("Write: %v", err)
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} else if _, err = io.Copy(fw, file); err != nil {
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return nil, fmt.Errorf("Copy: %v", err)
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}
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if _, err := x.Insert(attach); err != nil {
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return nil, err
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}
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return attach, nil
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}
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func getAttachmentByUUID(e Engine, uuid string) (*Attachment, error) {
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attach := &Attachment{UUID: uuid}
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has, err := e.Get(attach)
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if err != nil {
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return nil, err
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} else if !has {
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return nil, ErrAttachmentNotExist{0, uuid}
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}
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return attach, nil
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}
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func getAttachmentsByUUIDs(e Engine, uuids []string) ([]*Attachment, error) {
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if len(uuids) == 0 {
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return []*Attachment{}, nil
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}
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// Silently drop invalid uuids.
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attachments := make([]*Attachment, 0, len(uuids))
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return attachments, e.In("uuid", uuids).Find(&attachments)
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}
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// GetAttachmentByUUID returns attachment by given UUID.
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func GetAttachmentByUUID(uuid string) (*Attachment, error) {
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return getAttachmentByUUID(x, uuid)
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}
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func getAttachmentsByIssueID(e Engine, issueID int64) ([]*Attachment, error) {
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attachments := make([]*Attachment, 0, 10)
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return attachments, e.Where("issue_id = ? AND comment_id = 0", issueID).Find(&attachments)
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}
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// GetAttachmentsByIssueID returns all attachments of an issue.
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func GetAttachmentsByIssueID(issueID int64) ([]*Attachment, error) {
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return getAttachmentsByIssueID(x, issueID)
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}
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// GetAttachmentsByCommentID returns all attachments if comment by given ID.
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func GetAttachmentsByCommentID(commentID int64) ([]*Attachment, error) {
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attachments := make([]*Attachment, 0, 10)
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return attachments, x.Where("comment_id=?", commentID).Find(&attachments)
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}
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// DeleteAttachment deletes the given attachment and optionally the associated file.
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func DeleteAttachment(a *Attachment, remove bool) error {
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_, err := DeleteAttachments([]*Attachment{a}, remove)
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return err
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}
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// DeleteAttachments deletes the given attachments and optionally the associated files.
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func DeleteAttachments(attachments []*Attachment, remove bool) (int, error) {
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for i, a := range attachments {
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if remove {
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if err := os.Remove(a.LocalPath()); err != nil {
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return i, err
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}
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}
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if _, err := x.Delete(a); err != nil {
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return i, err
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}
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}
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return len(attachments), nil
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}
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// DeleteAttachmentsByIssue deletes all attachments associated with the given issue.
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func DeleteAttachmentsByIssue(issueID int64, remove bool) (int, error) {
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attachments, err := GetAttachmentsByIssueID(issueID)
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if err != nil {
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return 0, err
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}
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return DeleteAttachments(attachments, remove)
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}
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// DeleteAttachmentsByComment deletes all attachments associated with the given comment.
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func DeleteAttachmentsByComment(commentID int64, remove bool) (int, error) {
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attachments, err := GetAttachmentsByCommentID(commentID)
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if err != nil {
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return 0, err
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}
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return DeleteAttachments(attachments, remove)
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}
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