1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package markup
import (
"bufio"
"html"
"io"
"regexp"
"strconv"
"code.gitea.io/gitea/modules/csv"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/translation"
"code.gitea.io/gitea/modules/util"
)
func init() {
markup.RegisterRenderer(Renderer{})
}
// Renderer implements markup.Renderer for csv files
type Renderer struct{}
// Name implements markup.Renderer
func (Renderer) Name() string {
return "csv"
}
// Extensions implements markup.Renderer
func (Renderer) Extensions() []string {
return []string{".csv", ".tsv"}
}
// SanitizerRules implements markup.Renderer
func (Renderer) SanitizerRules() []setting.MarkupSanitizerRule {
return []setting.MarkupSanitizerRule{
{Element: "table", AllowAttr: "class", Regexp: regexp.MustCompile(`^data-table$`)},
{Element: "th", AllowAttr: "class", Regexp: regexp.MustCompile(`^line-num$`)},
{Element: "td", AllowAttr: "class", Regexp: regexp.MustCompile(`^line-num$`)},
}
}
func writeField(w io.Writer, element, class, field string) error {
if _, err := io.WriteString(w, "<"); err != nil {
return err
}
if _, err := io.WriteString(w, element); err != nil {
return err
}
if len(class) > 0 {
if _, err := io.WriteString(w, " class=\""); err != nil {
return err
}
if _, err := io.WriteString(w, class); err != nil {
return err
}
if _, err := io.WriteString(w, "\""); err != nil {
return err
}
}
if _, err := io.WriteString(w, ">"); err != nil {
return err
}
if _, err := io.WriteString(w, html.EscapeString(field)); err != nil {
return err
}
if _, err := io.WriteString(w, "</"); err != nil {
return err
}
if _, err := io.WriteString(w, element); err != nil {
return err
}
_, err := io.WriteString(w, ">")
return err
}
// Render implements markup.Renderer
func (r Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {
tmpBlock := bufio.NewWriter(output)
maxSize := setting.UI.CSV.MaxFileSize
maxRows := setting.UI.CSV.MaxRows
if maxSize != 0 {
input = io.LimitReader(input, maxSize+1)
}
rd, err := csv.CreateReaderAndDetermineDelimiter(ctx, input)
if err != nil {
return err
}
if _, err := tmpBlock.WriteString(`<table class="data-table">`); err != nil {
return err
}
row := 0
for {
fields, err := rd.Read()
if err == io.EOF || (row >= maxRows && maxRows != 0) {
break
}
if err != nil {
continue
}
if _, err := tmpBlock.WriteString("<tr>"); err != nil {
return err
}
element := "td"
if row == 0 {
element = "th"
}
if err := writeField(tmpBlock, element, "line-num", strconv.Itoa(row+1)); err != nil {
return err
}
for _, field := range fields {
if err := writeField(tmpBlock, element, "", field); err != nil {
return err
}
}
if _, err := tmpBlock.WriteString("</tr>"); err != nil {
return err
}
row++
}
if _, err = tmpBlock.WriteString("</table>"); err != nil {
return err
}
// Check if maxRows or maxSize is reached, and if true, warn.
if (row >= maxRows && maxRows != 0) || (rd.InputOffset() >= maxSize && maxSize != 0) {
warn := `<table class="data-table"><tr><td>`
rawLink := ` <a href="` + ctx.Links.RawLink() + `/` + util.PathEscapeSegments(ctx.RelativePath) + `">`
// Try to get the user translation
if locale, ok := ctx.Ctx.Value(translation.ContextKey).(translation.Locale); ok {
warn += locale.TrString("repo.file_too_large")
rawLink += locale.TrString("repo.file_view_raw")
} else {
warn += "The file is too large to be shown."
rawLink += "View Raw"
}
warn += rawLink + `</a></td></tr></table>`
// Write the HTML string to the output
if _, err := tmpBlock.WriteString(warn); err != nil {
return err
}
}
return tmpBlock.Flush()
}
|
