// Copyright 2022 The Gitea Authors. All rights reserved.// SPDX-License-Identifier: MIT package console import (	"bytes"	"io"	"path/filepath"	"regexp"	"strings" 	"forgejo.org/modules/markup"	"forgejo.org/modules/setting" 	trend "github.com/buildkite/terminal-to-html/v3"	"github.com/go-enry/go-enry/v2") // MarkupName describes markup's namevar MarkupName = "console" func init() {	markup.RegisterRenderer(Renderer{})} // Renderer implements markup.Renderertype Renderer struct{} // Name implements markup.Rendererfunc (Renderer) Name() string {	return MarkupName} // Extensions implements markup.Rendererfunc (Renderer) Extensions() []string {	return []string{".sh-session"}} // SanitizerRules implements markup.Rendererfunc (Renderer) SanitizerRules() []setting.MarkupSanitizerRule {	return []setting.MarkupSanitizerRule{		{Element: "span", AllowAttr: "class", Regexp: regexp.MustCompile(`^term-((fg[ix]?|bg)\d+|container)$`)},	}} // CanRender implements markup.RendererContentDetectorfunc (Renderer) CanRender(filename string, input io.Reader) bool {	buf, err := io.ReadAll(input)	if err != nil {		return false	}	if enry.GetLanguage(filepath.Base(filename), buf) != enry.OtherLanguage {		return false	}	return bytes.ContainsRune(buf, '\x1b')} // Render renders terminal colors to HTML with all specific handling stuff.func (Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {	screen, err := trend.NewScreen()	if err != nil {		return err	}	if _, err := io.Copy(screen, input); err != nil {		return err	}	buf := screen.AsHTML()	buf = strings.ReplaceAll(buf, "\n", `<br>`)	_, err = output.Write([]byte(buf))	return err} // Render renders terminal colors to HTML with all specific handling stuff.func Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {	if ctx.Type == "" {		ctx.Type = MarkupName	}	return markup.Render(ctx, input, output)} // RenderString renders terminal colors in string to HTML with all specific handling stuff and return stringfunc RenderString(ctx *markup.RenderContext, content string) (string, error) {	var buf strings.Builder	if err := Render(ctx, strings.NewReader(content), &buf); err != nil {		return "", err	}	return buf.String(), nil}