mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-27 22:04:28 -04:00
Also removes some unnecessary uses of fmt.Sprintf and adds documentation strings Signed-off-by: Andrew Thornton <art27@cantab.net>
167 lines
4.6 KiB
Go
167 lines
4.6 KiB
Go
// Copyright 2020 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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"crypto/md5"
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"fmt"
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"image/png"
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"io"
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"strconv"
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"strings"
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"code.gitea.io/gitea/modules/avatar"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/storage"
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)
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// CustomAvatarRelativePath returns user custom avatar relative path.
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func (u *User) CustomAvatarRelativePath() string {
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return u.Avatar
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}
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// GenerateRandomAvatar generates a random avatar for user.
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func (u *User) GenerateRandomAvatar() error {
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return u.generateRandomAvatar(x)
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}
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func (u *User) generateRandomAvatar(e Engine) error {
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seed := u.Email
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if len(seed) == 0 {
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seed = u.Name
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}
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img, err := avatar.RandomImage([]byte(seed))
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if err != nil {
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return fmt.Errorf("RandomImage: %v", err)
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}
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u.Avatar = HashEmail(seed)
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// Don't share the images so that we can delete them easily
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if err := storage.SaveFrom(storage.Avatars, u.CustomAvatarRelativePath(), func(w io.Writer) error {
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if err := png.Encode(w, img); err != nil {
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log.Error("Encode: %v", err)
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}
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return err
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}); err != nil {
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return fmt.Errorf("Failed to create dir %s: %v", u.CustomAvatarRelativePath(), err)
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}
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if _, err := e.ID(u.ID).Cols("avatar").Update(u); err != nil {
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return err
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}
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log.Info("New random avatar created: %d", u.ID)
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return nil
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}
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// SizedRelAvatarLink returns a link to the user's avatar via
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// the local explore page. Function returns immediately.
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// When applicable, the link is for an avatar of the indicated size (in pixels).
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func (u *User) SizedRelAvatarLink(size int) string {
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return setting.AppSubURL + "/user/avatar/" + u.Name + "/" + strconv.Itoa(size)
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}
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// RealSizedAvatarLink returns a link to the user's avatar. When
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// applicable, the link is for an avatar of the indicated size (in pixels).
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//
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// This function make take time to return when federated avatars
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// are in use, due to a DNS lookup need
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//
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func (u *User) RealSizedAvatarLink(size int) string {
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if u.ID == -1 {
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return DefaultAvatarLink()
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}
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switch {
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case u.UseCustomAvatar:
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if u.Avatar == "" {
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return DefaultAvatarLink()
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}
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return setting.AppSubURL + "/avatars/" + u.Avatar
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case setting.DisableGravatar, setting.OfflineMode:
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if u.Avatar == "" {
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if err := u.GenerateRandomAvatar(); err != nil {
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log.Error("GenerateRandomAvatar: %v", err)
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}
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}
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return setting.AppSubURL + "/avatars/" + u.Avatar
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}
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return SizedAvatarLink(u.AvatarEmail, size)
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}
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// RelAvatarLink returns a relative link to the user's avatar. The link
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// may either be a sub-URL to this site, or a full URL to an external avatar
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// service.
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func (u *User) RelAvatarLink() string {
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return u.SizedRelAvatarLink(DefaultAvatarSize)
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}
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// AvatarLink returns user avatar absolute link.
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func (u *User) AvatarLink() string {
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link := u.RelAvatarLink()
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if link[0] == '/' && link[1] != '/' {
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return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL)[1:]
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}
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return link
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}
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// UploadAvatar saves custom avatar for user.
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// FIXME: split uploads to different subdirs in case we have massive users.
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func (u *User) UploadAvatar(data []byte) error {
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m, err := avatar.Prepare(data)
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if err != nil {
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return err
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}
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sess := x.NewSession()
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defer sess.Close()
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if err = sess.Begin(); err != nil {
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return err
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}
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u.UseCustomAvatar = true
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// Different users can upload same image as avatar
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// If we prefix it with u.ID, it will be separated
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// Otherwise, if any of the users delete his avatar
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// Other users will lose their avatars too.
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u.Avatar = fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("%d-%x", u.ID, md5.Sum(data)))))
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if err = updateUserCols(sess, u, "use_custom_avatar", "avatar"); err != nil {
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return fmt.Errorf("updateUser: %v", err)
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}
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if err := storage.SaveFrom(storage.Avatars, u.CustomAvatarRelativePath(), func(w io.Writer) error {
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if err := png.Encode(w, *m); err != nil {
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log.Error("Encode: %v", err)
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}
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return err
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}); err != nil {
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return fmt.Errorf("Failed to create dir %s: %v", u.CustomAvatarRelativePath(), err)
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}
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return sess.Commit()
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}
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// DeleteAvatar deletes the user's custom avatar.
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func (u *User) DeleteAvatar() error {
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aPath := u.CustomAvatarRelativePath()
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log.Trace("DeleteAvatar[%d]: %s", u.ID, aPath)
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if len(u.Avatar) > 0 {
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if err := storage.Avatars.Delete(aPath); err != nil {
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return fmt.Errorf("Failed to remove %s: %v", aPath, err)
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}
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}
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u.UseCustomAvatar = false
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u.Avatar = ""
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if _, err := x.ID(u.ID).Cols("avatar, use_custom_avatar").Update(u); err != nil {
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return fmt.Errorf("UpdateUser: %v", err)
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}
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return nil
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}
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