32 lines
847 B
Go
32 lines
847 B
Go
// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package markup
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import (
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"regexp"
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"strings"
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"code.gitea.io/gitea/modules/setting"
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"github.com/microcosm-cc/bluemonday"
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)
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func (st *Sanitizer) addSanitizerRules(policy *bluemonday.Policy, rules []setting.MarkupSanitizerRule) {
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for _, rule := range rules {
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if rule.AllowDataURIImages {
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policy.AllowDataURIImages()
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}
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if rule.Element != "" {
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if rule.Regexp != "" {
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if !strings.HasPrefix(rule.Regexp, "^") || !strings.HasSuffix(rule.Regexp, "$") {
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panic("Markup sanitizer rule regexp must start with ^ and end with $ to be strict")
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}
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policy.AllowAttrs(rule.AllowAttr).Matching(regexp.MustCompile(rule.Regexp)).OnElements(rule.Element)
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} else {
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policy.AllowAttrs(rule.AllowAttr).OnElements(rule.Element)
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}
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}
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}
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}
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