29 lines
992 B
Go
29 lines
992 B
Go
package core
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import (
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"github.com/microcosm-cc/bluemonday"
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"github.com/shurcooL/github_flavored_markdown"
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)
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// RenderMarkdown renders markdown to HTML, safely. It uses blackfriday to
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// render Markdown to HTML and then Bluemonday to sanitize the resulting HTML.
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func (b *Blog) RenderMarkdown(input string) string {
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unsafe := []byte(b.RenderTrustedMarkdown(input))
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// Sanitize HTML, but allow fenced code blocks to not get mangled in user
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// submitted comments.
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p := bluemonday.UGCPolicy()
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p.AllowAttrs("class").Matching(reFencedCodeClass).OnElements("code")
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html := p.SanitizeBytes(unsafe)
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return string(html)
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}
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// RenderTrustedMarkdown renders markdown to HTML, but without applying
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// bluemonday filtering afterward. This is for blog posts and website
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// Markdown pages, not for user-submitted comments or things.
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func (b *Blog) RenderTrustedMarkdown(input string) string {
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html := github_flavored_markdown.Markdown([]byte(input))
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log.Info("%s", html)
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return string(html)
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}
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