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cleanup code issueFullPattern in modules/markup (#16419)

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fix #16415
This commit is contained in:
Josef Fröhle 2021-07-15 22:33:56 +02:00 committed by GitHub
parent d7ee5dc775
commit 8d962daed6
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 9 additions and 7 deletions
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15
modules/markup/html.go
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@ -13,6 +13,7 @@ import (
"path/filepath" "path/filepath"
"regexp" "regexp"
"strings" "strings"
"sync"
"code.gitea.io/gitea/modules/base" "code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/emoji" "code.gitea.io/gitea/modules/emoji"
@ -71,9 +72,6 @@ var (
// CSS class for action keywords (e.g. "closes: #1") // CSS class for action keywords (e.g. "closes: #1")
const keywordClass = "issue-keyword" const keywordClass = "issue-keyword"
// regexp for full links to issues/pulls
var issueFullPattern *regexp.Regexp
// IsLink reports whether link fits valid format. // IsLink reports whether link fits valid format.
func IsLink(link []byte) bool { func IsLink(link []byte) bool {
return isLink(link) return isLink(link)
@ -88,12 +86,17 @@ func isLinkStr(link string) bool {
return validLinksPattern.MatchString(link) return validLinksPattern.MatchString(link)
} }
// FIXME: This function is not concurrent safe // regexp for full links to issues/pulls
var issueFullPattern *regexp.Regexp
// Once for to prevent races
var issueFullPatternOnce sync.Once
func getIssueFullPattern() *regexp.Regexp { func getIssueFullPattern() *regexp.Regexp {
if issueFullPattern == nil { issueFullPatternOnce.Do(func() {
issueFullPattern = regexp.MustCompile(regexp.QuoteMeta(setting.AppURL) + issueFullPattern = regexp.MustCompile(regexp.QuoteMeta(setting.AppURL) +
`\w+/\w+/(?:issues|pulls)/((?:\w{1,10}-)?[1-9][0-9]*)([\?|#]\S+.(\S+)?)?\b`) `\w+/\w+/(?:issues|pulls)/((?:\w{1,10}-)?[1-9][0-9]*)([\?|#]\S+.(\S+)?)?\b`)
} })
return issueFullPattern return issueFullPattern
} }

1
modules/markup/renderer.go
View File

@ -19,7 +19,6 @@ import (
// Init initialize regexps for markdown parsing // Init initialize regexps for markdown parsing
func Init() { func Init() {
getIssueFullPattern()
NewSanitizer() NewSanitizer()
if len(setting.Markdown.CustomURLSchemes) > 0 { if len(setting.Markdown.CustomURLSchemes) > 0 {
CustomLinkURLSchemes(setting.Markdown.CustomURLSchemes) CustomLinkURLSchemes(setting.Markdown.CustomURLSchemes)