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Fix possible panic (#17694)

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- The code will get the first and second character `link[{0,1]]`.
However in a rare case the `link` could have 1 character and thus the
`link[1]` will create a panic.
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Gusted 2021-11-18 13:25:56 +00:00 committed by GitHub
parent d1f5584039
commit 257b7171c3
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1 changed files with 4 additions and 5 deletions
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9
models/repo_avatar.go
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@ -108,12 +108,11 @@ func (repo *Repository) AvatarLink() string {
// avatarLink returns user avatar absolute link.
func (repo *Repository) avatarLink(e db.Engine) string {
link := repo.relAvatarLink(e)
// link may be empty!
if len(link) > 0 {
if link[0] == '/' && link[1] != '/' {
return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL)[1:]
}
// 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
}