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Fix a panic in NotifyCreateIssueComment (caused by string truncation) (#17928)

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* Fix a panic in NotifyCreateIssueComment (caused by string truncation)

* more unit tests

* refactor

* fix some edge cases

* use SplitStringAtByteN for comment content
This commit is contained in:
wxiaoguang
2021-12-09 13:41:17 +08:00
committed by GitHub
parent 183175263d
commit c7e23401a3
4 changed files with 104 additions and 17 deletions
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16
modules/notification/action/action.go
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@@ -15,6 +15,7 @@ import (
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/notification/base"
"code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/util"
)
type actionNotifier struct {
@@ -100,14 +101,15 @@ func (a *actionNotifier) NotifyCreateIssueComment(doer *user_model.User, repo *m
IsPrivate: issue.Repo.IsPrivate,
}
content := ""
if len(comment.Content) > 200 {
content = comment.Content[:strings.LastIndex(comment.Content[0:200], " ")] + "…"
} else {
content = comment.Content
truncatedContent, truncatedRight := util.SplitStringAtByteN(comment.Content, 200)
if truncatedRight != "" {
// in case the content is in a Latin family language, we remove the last broken word.
lastSpaceIdx := strings.LastIndex(truncatedContent, " ")
if lastSpaceIdx != -1 && (len(truncatedContent)-lastSpaceIdx < 15) {
truncatedContent = truncatedContent[:lastSpaceIdx] + "…"
}
}
act.Content = fmt.Sprintf("%d|%s", issue.Index, content)
act.Content = fmt.Sprintf("%d|%s", issue.Index, truncatedContent)
if issue.IsPull {
act.OpType = models.ActionCommentPull