Restructure markup & markdown to prepare for multiple markup language… (#2411)

* restructure markup & markdown to prepare for multiple markup languages support

* adjust some functions between markdown and markup

* fix tests

* improve the comments

1 files changed, 0 insertions, 58 deletions

diff --git a/modules/markdown/sanitizer.go b/modules/markdown/sanitizer.go
deleted file mode 100644
index cc00c9a1a3..0000000000
--- a/modules/markdown/sanitizer.go
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2017 The Gitea Authors. All rights reserved.
-// Copyright 2017 The Gogs 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 markdown
-
-import (
-	"regexp"
-	"sync"
-
-	"code.gitea.io/gitea/modules/setting"
-
-	"github.com/microcosm-cc/bluemonday"
-)
-
-// Sanitizer is a protection wrapper of *bluemonday.Policy which does not allow
-// any modification to the underlying policies once it's been created.
-type Sanitizer struct {
-	policy *bluemonday.Policy
-	init   sync.Once
-}
-
-var sanitizer = &Sanitizer{}
-
-// NewSanitizer initializes sanitizer with allowed attributes based on settings.
-// Multiple calls to this function will only create one instance of Sanitizer during
-// entire application lifecycle.
-func NewSanitizer() {
-	sanitizer.init.Do(func() {
-		sanitizer.policy = bluemonday.UGCPolicy()
-		// We only want to allow HighlightJS specific classes for code blocks
-		sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^language-\w+$`)).OnElements("code")
-
-		// Checkboxes
-		sanitizer.policy.AllowAttrs("type").Matching(regexp.MustCompile(`^checkbox$`)).OnElements("input")
-		sanitizer.policy.AllowAttrs("checked", "disabled").OnElements("input")
-
-		// Custom URL-Schemes
-		sanitizer.policy.AllowURLSchemes(setting.Markdown.CustomURLSchemes...)
-	})
-}
-
-// Sanitize takes a string that contains a HTML fragment or document and applies policy whitelist.
-func Sanitize(s string) string {
-	NewSanitizer()
-	return sanitizer.policy.Sanitize(s)
-}
-
-// SanitizeBytes takes a []byte slice that contains a HTML fragment or document and applies policy whitelist.
-func SanitizeBytes(b []byte) []byte {
-	if len(b) == 0 {
-		// nothing to sanitize
-		return b
-	}
-	NewSanitizer()
-	return sanitizer.policy.SanitizeBytes(b)
-}