mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-27 06:06:38 +00:00
93 lines
2.5 KiB
Go
93 lines
2.5 KiB
Go
// GoToSocial
|
|
// Copyright (C) GoToSocial Authors admin@gotosocial.org
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package text
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
|
|
"codeberg.org/gruf/go-byteutil"
|
|
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
|
|
"github.com/superseriousbusiness/gotosocial/internal/log"
|
|
"github.com/superseriousbusiness/gotosocial/internal/regexes"
|
|
"github.com/yuin/goldmark"
|
|
"github.com/yuin/goldmark/extension"
|
|
"github.com/yuin/goldmark/renderer/html"
|
|
)
|
|
|
|
// FromMarkdown fulfils FormatFunc by parsing
|
|
// the given markdown input into a FormatResult.
|
|
func (f *Formatter) FromMarkdown(
|
|
ctx context.Context,
|
|
parseMention gtsmodel.ParseMentionFunc,
|
|
authorID string,
|
|
statusID string,
|
|
input string,
|
|
) *FormatResult {
|
|
result := new(FormatResult)
|
|
|
|
// Instantiate goldmark parser for
|
|
// markdown, using custom renderer
|
|
// to add hashtag/mention links.
|
|
md := goldmark.New(
|
|
goldmark.WithRendererOptions(
|
|
html.WithXHTML(),
|
|
html.WithHardWraps(),
|
|
// Allows raw HTML. We sanitize
|
|
// at the end so this is OK.
|
|
html.WithUnsafe(),
|
|
),
|
|
goldmark.WithExtensions(
|
|
&customRenderer{
|
|
ctx,
|
|
f.db,
|
|
parseMention,
|
|
authorID,
|
|
statusID,
|
|
false, // emojiOnly = false.
|
|
result,
|
|
},
|
|
// Turns URLs into links.
|
|
extension.NewLinkify(
|
|
extension.WithLinkifyURLRegexp(regexes.LinkScheme),
|
|
),
|
|
extension.Strikethrough,
|
|
),
|
|
)
|
|
|
|
// Convert input string to bytes
|
|
// without performing any allocs.
|
|
bInput := byteutil.S2B(input)
|
|
|
|
// Parse input into HTML.
|
|
var htmlBytes bytes.Buffer
|
|
if err := md.Convert(
|
|
bInput,
|
|
&htmlBytes,
|
|
); err != nil {
|
|
log.Errorf(ctx, "error formatting markdown input to HTML: %s", err)
|
|
}
|
|
|
|
// Clean and shrink HTML.
|
|
result.HTML = byteutil.B2S(htmlBytes.Bytes())
|
|
result.HTML = SanitizeToHTML(result.HTML)
|
|
result.HTML = MinifyHTML(result.HTML)
|
|
|
|
return result
|
|
}
|