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| 1 | +// Copyright 2022 The Gitea Authors. All rights reserved. |
| 2 | +// Use of this source code is governed by a MIT-style |
| 3 | +// license that can be found in the LICENSE file. |
| 4 | + |
| 5 | +package console |
| 6 | + |
| 7 | +import ( |
| 8 | + "bytes" |
| 9 | + "io" |
| 10 | + "path/filepath" |
| 11 | + "regexp" |
| 12 | + "strings" |
| 13 | + |
| 14 | + "code.gitea.io/gitea/modules/markup" |
| 15 | + "code.gitea.io/gitea/modules/setting" |
| 16 | + |
| 17 | + trend "github.com/buildkite/terminal-to-html/v3" |
| 18 | + "github.com/go-enry/go-enry/v2" |
| 19 | +) |
| 20 | + |
| 21 | +// MarkupName describes markup's name |
| 22 | +var MarkupName = "console" |
| 23 | + |
| 24 | +func init() { |
| 25 | + markup.RegisterRenderer(Renderer{}) |
| 26 | +} |
| 27 | + |
| 28 | +// Renderer implements markup.Renderer |
| 29 | +type Renderer struct{} |
| 30 | + |
| 31 | +// Name implements markup.Renderer |
| 32 | +func (Renderer) Name() string { |
| 33 | + return MarkupName |
| 34 | +} |
| 35 | + |
| 36 | +// NeedPostProcess implements markup.Renderer |
| 37 | +func (Renderer) NeedPostProcess() bool { return false } |
| 38 | + |
| 39 | +// Extensions implements markup.Renderer |
| 40 | +func (Renderer) Extensions() []string { |
| 41 | + return []string{".sh-session"} |
| 42 | +} |
| 43 | + |
| 44 | +// SanitizerRules implements markup.Renderer |
| 45 | +func (Renderer) SanitizerRules() []setting.MarkupSanitizerRule { |
| 46 | + return []setting.MarkupSanitizerRule{ |
| 47 | + {Element: "span", AllowAttr: "class", Regexp: regexp.MustCompile(`^term-((fg[ix]?|bg)\d+|container)$`)}, |
| 48 | + } |
| 49 | +} |
| 50 | + |
| 51 | +// SanitizerDisabled disabled sanitize if return true |
| 52 | +func (Renderer) SanitizerDisabled() bool { |
| 53 | + return false |
| 54 | +} |
| 55 | + |
| 56 | +// CanRender implements markup.RendererContentDetector |
| 57 | +func (Renderer) CanRender(filename string, input io.Reader) bool { |
| 58 | + buf, err := io.ReadAll(input) |
| 59 | + if err != nil { |
| 60 | + return false |
| 61 | + } |
| 62 | + if enry.GetLanguage(filepath.Base(filename), buf) != enry.OtherLanguage { |
| 63 | + return false |
| 64 | + } |
| 65 | + return bytes.ContainsRune(buf, '\x1b') |
| 66 | +} |
| 67 | + |
| 68 | +// Render renders terminal colors to HTML with all specific handling stuff. |
| 69 | +func (Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error { |
| 70 | + buf, err := io.ReadAll(input) |
| 71 | + if err != nil { |
| 72 | + return err |
| 73 | + } |
| 74 | + buf = trend.Render(buf) |
| 75 | + buf = bytes.ReplaceAll(buf, []byte("\n"), []byte(`<br>`)) |
| 76 | + _, err = output.Write(buf) |
| 77 | + return err |
| 78 | +} |
| 79 | + |
| 80 | +// Render renders terminal colors to HTML with all specific handling stuff. |
| 81 | +func Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error { |
| 82 | + if ctx.Type == "" { |
| 83 | + ctx.Type = MarkupName |
| 84 | + } |
| 85 | + return markup.Render(ctx, input, output) |
| 86 | +} |
| 87 | + |
| 88 | +// RenderString renders terminal colors in string to HTML with all specific handling stuff and return string |
| 89 | +func RenderString(ctx *markup.RenderContext, content string) (string, error) { |
| 90 | + var buf strings.Builder |
| 91 | + if err := Render(ctx, strings.NewReader(content), &buf); err != nil { |
| 92 | + return "", err |
| 93 | + } |
| 94 | + return buf.String(), nil |
| 95 | +} |
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