mirror of https://github.com/go-gitea/gitea.git
118 lines
3.4 KiB
Go
118 lines
3.4 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package user
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import (
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"context"
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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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"strings"
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"code.gitea.io/gitea/models/avatars"
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"code.gitea.io/gitea/models/db"
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system_model "code.gitea.io/gitea/models/system"
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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 GenerateRandomAvatar(ctx context.Context, u *User) 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: %w", err)
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}
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u.Avatar = avatars.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: %w", u.CustomAvatarRelativePath(), err)
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}
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if _, err := db.GetEngine(ctx).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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// AvatarLinkWithSize returns a link to the user's avatar with size. size <= 0 means default size
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func (u *User) AvatarLinkWithSize(ctx context.Context, size int) string {
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if u.ID == -1 {
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// ghost user
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return avatars.DefaultAvatarLink()
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}
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useLocalAvatar := false
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autoGenerateAvatar := false
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disableGravatar := system_model.GetSettingWithCacheBool(ctx, system_model.KeyPictureDisableGravatar)
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switch {
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case u.UseCustomAvatar:
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useLocalAvatar = true
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case disableGravatar, setting.OfflineMode:
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useLocalAvatar = true
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autoGenerateAvatar = true
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}
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if useLocalAvatar {
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if u.Avatar == "" && autoGenerateAvatar {
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if err := GenerateRandomAvatar(ctx, u); err != nil {
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log.Error("GenerateRandomAvatar: %v", err)
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}
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}
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if u.Avatar == "" {
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return avatars.DefaultAvatarLink()
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}
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return avatars.GenerateUserAvatarImageLink(u.Avatar, size)
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}
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return avatars.GenerateEmailAvatarFastLink(ctx, u.AvatarEmail, size)
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}
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// AvatarLink returns the full avatar link with http host
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func (u *User) AvatarLink(ctx context.Context) string {
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link := u.AvatarLinkWithSize(ctx, 0)
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if !strings.HasPrefix(link, "//") && !strings.Contains(link, "://") {
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return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL+"/")
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}
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return link
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}
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// IsUploadAvatarChanged returns true if the current user's avatar would be changed with the provided data
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func (u *User) IsUploadAvatarChanged(data []byte) bool {
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if !u.UseCustomAvatar || len(u.Avatar) == 0 {
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return true
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}
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avatarID := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("%d-%x", u.ID, md5.Sum(data)))))
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return u.Avatar != avatarID
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}
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// ExistsWithAvatarAtStoragePath returns true if there is a user with this Avatar
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func ExistsWithAvatarAtStoragePath(ctx context.Context, storagePath string) (bool, error) {
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// See func (u *User) CustomAvatarRelativePath()
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// u.Avatar is used directly as the storage path - therefore we can check for existence directly using the path
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return db.GetEngine(ctx).Where("`avatar`=?", storagePath).Exist(new(User))
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}
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