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-rw-r--r--models/repo/avatar.go94
1 files changed, 94 insertions, 0 deletions
diff --git a/models/repo/avatar.go b/models/repo/avatar.go
new file mode 100644
index 0000000000..f11f868d63
--- /dev/null
+++ b/models/repo/avatar.go
@@ -0,0 +1,94 @@
+// Copyright 2021 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 repo
+
+import (
+ "fmt"
+ "image/png"
+ "io"
+ "net/url"
+ "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 repository custom avatar file path.
+func (repo *Repository) CustomAvatarRelativePath() string {
+ return repo.Avatar
+}
+
+// RelAvatarLink returns a relative link to the repository's avatar.
+func (repo *Repository) RelAvatarLink() string {
+ return repo.relAvatarLink(db.GetEngine(db.DefaultContext))
+}
+
+// generateRandomAvatar generates a random avatar for repository.
+func generateRandomAvatar(e db.Engine, repo *Repository) error {
+ idToString := fmt.Sprintf("%d", repo.ID)
+
+ seed := idToString
+ img, err := avatar.RandomImage([]byte(seed))
+ if err != nil {
+ return fmt.Errorf("RandomImage: %v", err)
+ }
+
+ repo.Avatar = idToString
+
+ if err := storage.SaveFrom(storage.RepoAvatars, repo.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", repo.CustomAvatarRelativePath(), err)
+ }
+
+ log.Info("New random avatar created for repository: %d", repo.ID)
+
+ if _, err := e.ID(repo.ID).Cols("avatar").NoAutoTime().Update(repo); err != nil {
+ return err
+ }
+
+ return nil
+}
+
+func (repo *Repository) relAvatarLink(e db.Engine) string {
+ // If no avatar - path is empty
+ avatarPath := repo.CustomAvatarRelativePath()
+ if len(avatarPath) == 0 {
+ switch mode := setting.RepoAvatar.Fallback; mode {
+ case "image":
+ return setting.RepoAvatar.FallbackImage
+ case "random":
+ if err := generateRandomAvatar(e, repo); err != nil {
+ log.Error("generateRandomAvatar: %v", err)
+ }
+ default:
+ // default behaviour: do not display avatar
+ return ""
+ }
+ }
+ return setting.AppSubURL + "/repo-avatars/" + url.PathEscape(repo.Avatar)
+}
+
+// AvatarLink returns a link to the repository's avatar.
+func (repo *Repository) AvatarLink() string {
+ return repo.avatarLink(db.GetEngine(db.DefaultContext))
+}
+
+// avatarLink returns user avatar absolute link.
+func (repo *Repository) avatarLink(e db.Engine) string {
+ link := repo.relAvatarLink(e)
+ // we only prepend our AppURL to our known (relative, internal) avatar link to get an absolute URL
+ if strings.HasPrefix(link, "/") && !strings.HasPrefix(link, "//") {
+ return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL)[1:]
+ }
+ // otherwise, return the link as it is
+ return link
+}