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// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
package render
import (
"bytes"
"html"
"html/template"
"strings"
"github.com/microcosm-cc/bluemonday"
"github.com/niklasfasching/go-org/org"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/extension"
"go.lindenii.runxiyu.org/forge/internal/misc"
)
var markdownConverter = goldmark.New(goldmark.WithExtensions(extension.GFM))
// renderReadme renders and sanitizes README content from a byte slice and filename.
func Readme(data []byte, filename string) (string, template.HTML) {
switch strings.ToLower(filename) {
case "readme":
return "README", template.HTML("<pre>" + html.EscapeString(misc.BytesToString(data)) + "</pre>") //#nosec G203
case "readme.md":
var buf bytes.Buffer
if err := markdownConverter.Convert(data, &buf); err != nil {
return "Error fetching README", EscapeHTML("Unable to render README: " + err.Error())
}
return "README.md", template.HTML(bluemonday.UGCPolicy().SanitizeBytes(buf.Bytes())) //#nosec G203
case "readme.org":
htmlStr, err := org.New().Parse(strings.NewReader(misc.BytesToString(data)), filename).Write(org.NewHTMLWriter())
if err != nil {
return "Error fetching README", EscapeHTML("Unable to render README: " + err.Error())
}
return "README.org", template.HTML(bluemonday.UGCPolicy().Sanitize(htmlStr)) //#nosec G203
default:
return filename, template.HTML("<pre>" + html.EscapeString(misc.BytesToString(data)) + "</pre>") //#nosec G203
}
}
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