forgejo/models/user_avatar.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

172 lines
4.9 KiB
Go

// 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 (
"crypto/md5"
"fmt"
"image/png"
"io"
"strconv"
"strings"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/avatar"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/storage"
)
// CustomAvatarRelativePath returns user custom avatar relative path.
func (u *User) CustomAvatarRelativePath() string {
return u.Avatar
}
// GenerateRandomAvatar generates a random avatar for user.
func (u *User) GenerateRandomAvatar() error {
return u.generateRandomAvatar(db.GetEngine(db.DefaultContext))
}
func (u *User) generateRandomAvatar(e db.Engine) error {
seed := u.Email
if len(seed) == 0 {
seed = u.Name
}
img, err := avatar.RandomImage([]byte(seed))
if err != nil {
return fmt.Errorf("RandomImage: %v", err)
}
u.Avatar = HashEmail(seed)
// Don't share the images so that we can delete them easily
if err := storage.SaveFrom(storage.Avatars, u.CustomAvatarRelativePath(), func(w io.Writer) error {
if err := png.Encode(w, img); err != nil {
log.Error("Encode: %v", err)
}
return err
}); err != nil {
return fmt.Errorf("Failed to create dir %s: %v", u.CustomAvatarRelativePath(), err)
}
if _, err := e.ID(u.ID).Cols("avatar").Update(u); err != nil {
return err
}
log.Info("New random avatar created: %d", u.ID)
return nil
}
// SizedRelAvatarLink returns a link to the user's avatar via
// the local explore page. Function returns immediately.
// When applicable, the link is for an avatar of the indicated size (in pixels).
func (u *User) SizedRelAvatarLink(size int) string {
return setting.AppSubURL + "/user/avatar/" + u.Name + "/" + strconv.Itoa(size)
}
// RealSizedAvatarLink returns a link to the user's avatar. When
// applicable, the link is for an avatar of the indicated size (in pixels).
//
// This function make take time to return when federated avatars
// are in use, due to a DNS lookup need
//
func (u *User) RealSizedAvatarLink(size int) string {
if u.ID == -1 {
return DefaultAvatarLink()
}
switch {
case u.UseCustomAvatar:
if u.Avatar == "" {
return DefaultAvatarLink()
}
if size > 0 {
return setting.AppSubURL + "/avatars/" + u.Avatar + "?size=" + strconv.Itoa(size)
}
return setting.AppSubURL + "/avatars/" + u.Avatar
case setting.DisableGravatar, setting.OfflineMode:
if u.Avatar == "" {
if err := u.GenerateRandomAvatar(); err != nil {
log.Error("GenerateRandomAvatar: %v", err)
}
}
if size > 0 {
return setting.AppSubURL + "/avatars/" + u.Avatar + "?size=" + strconv.Itoa(size)
}
return setting.AppSubURL + "/avatars/" + u.Avatar
}
return SizedAvatarLink(u.AvatarEmail, size)
}
// RelAvatarLink returns a relative link to the user's avatar. The link
// may either be a sub-URL to this site, or a full URL to an external avatar
// service.
func (u *User) RelAvatarLink() string {
return u.SizedRelAvatarLink(DefaultAvatarSize)
}
// AvatarLink returns user avatar absolute link.
func (u *User) AvatarLink() string {
link := u.RelAvatarLink()
if link[0] == '/' && link[1] != '/' {
return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL)[1:]
}
return link
}
// UploadAvatar saves custom avatar for user.
// FIXME: split uploads to different subdirs in case we have massive users.
func (u *User) UploadAvatar(data []byte) error {
m, err := avatar.Prepare(data)
if err != nil {
return err
}
sess := db.NewSession(db.DefaultContext)
defer sess.Close()
if err = sess.Begin(); err != nil {
return err
}
u.UseCustomAvatar = true
// Different users can upload same image as avatar
// If we prefix it with u.ID, it will be separated
// Otherwise, if any of the users delete his avatar
// Other users will lose their avatars too.
u.Avatar = fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("%d-%x", u.ID, md5.Sum(data)))))
if err = updateUserCols(sess, u, "use_custom_avatar", "avatar"); err != nil {
return fmt.Errorf("updateUser: %v", err)
}
if err := storage.SaveFrom(storage.Avatars, u.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("Failed to create dir %s: %v", u.CustomAvatarRelativePath(), err)
}
return sess.Commit()
}
// DeleteAvatar deletes the user's custom avatar.
func (u *User) DeleteAvatar() error {
aPath := u.CustomAvatarRelativePath()
log.Trace("DeleteAvatar[%d]: %s", u.ID, aPath)
if len(u.Avatar) > 0 {
if err := storage.Avatars.Delete(aPath); err != nil {
return fmt.Errorf("Failed to remove %s: %v", aPath, err)
}
}
u.UseCustomAvatar = false
u.Avatar = ""
if _, err := db.GetEngine(db.DefaultContext).ID(u.ID).Cols("avatar, use_custom_avatar").Update(u); err != nil {
return fmt.Errorf("UpdateUser: %v", err)
}
return nil
}