b01dce2a6e
* Allow render HTML with css/js external links * Fix bug because of filename escape chars * Fix lint * Update docs about new configuration item * Fix bug of render HTML in sub directory * Add CSP head for displaying iframe in rendering file * Fix test * Apply suggestions from code review Co-authored-by: delvh <dev.lh@web.de> * Some improvements * some improvement * revert change in SanitizerDisabled of external renderer * Add sandbox for iframe and support allow-scripts and allow-same-origin * refactor * fix * fix lint * fine tune * use single option RENDER_CONTENT_MODE, use sandbox=allow-scripts * fine tune CSP * Apply suggestions from code review Co-authored-by: wxiaoguang <wxiaoguang@gmail.com> Co-authored-by: delvh <dev.lh@web.de> Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package console
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import (
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"bytes"
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"io"
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"path/filepath"
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"regexp"
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"strings"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/setting"
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trend "github.com/buildkite/terminal-to-html/v3"
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"github.com/go-enry/go-enry/v2"
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)
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// MarkupName describes markup's name
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var MarkupName = "console"
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func init() {
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markup.RegisterRenderer(Renderer{})
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}
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// Renderer implements markup.Renderer
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type Renderer struct{}
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// Name implements markup.Renderer
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func (Renderer) Name() string {
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return MarkupName
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}
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// Extensions implements markup.Renderer
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func (Renderer) Extensions() []string {
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return []string{".sh-session"}
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}
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// SanitizerRules implements markup.Renderer
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func (Renderer) SanitizerRules() []setting.MarkupSanitizerRule {
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return []setting.MarkupSanitizerRule{
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{Element: "span", AllowAttr: "class", Regexp: regexp.MustCompile(`^term-((fg[ix]?|bg)\d+|container)$`)},
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}
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}
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// CanRender implements markup.RendererContentDetector
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func (Renderer) CanRender(filename string, input io.Reader) bool {
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buf, err := io.ReadAll(input)
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if err != nil {
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return false
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}
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if enry.GetLanguage(filepath.Base(filename), buf) != enry.OtherLanguage {
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return false
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}
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return bytes.ContainsRune(buf, '\x1b')
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}
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// Render renders terminal colors to HTML with all specific handling stuff.
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func (Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {
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buf, err := io.ReadAll(input)
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if err != nil {
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return err
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}
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buf = trend.Render(buf)
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buf = bytes.ReplaceAll(buf, []byte("\n"), []byte(`<br>`))
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_, err = output.Write(buf)
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return err
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}
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// Render renders terminal colors to HTML with all specific handling stuff.
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func Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {
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if ctx.Type == "" {
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ctx.Type = MarkupName
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}
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return markup.Render(ctx, input, output)
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}
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// RenderString renders terminal colors in string to HTML with all specific handling stuff and return string
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func RenderString(ctx *markup.RenderContext, content string) (string, error) {
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var buf strings.Builder
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if err := Render(ctx, strings.NewReader(content), &buf); err != nil {
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return "", err
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}
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return buf.String(), nil
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}
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