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Fix possible panic (#17694)
- 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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1 changed files with 4 additions and 5 deletions
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@ -108,12 +108,11 @@ func (repo *Repository) AvatarLink() string {
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// avatarLink returns user avatar absolute link.
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func (repo *Repository) avatarLink(e db.Engine) string {
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link := repo.relAvatarLink(e)
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// link may be empty!
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if len(link) > 0 {
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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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// we only prepend our AppURL to our known (relative, internal) avatar link to get an absolute URL
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if strings.HasPrefix(link, "/") && !strings.HasPrefix(link, "//") {
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return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL)[1:]
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}
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// otherwise, return the link as it is
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return link
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}
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