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
|
// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package template // import "miniflux.app/v2/internal/template"
import (
"bytes"
"embed"
"html/template"
"strings"
"time"
"miniflux.app/v2/internal/errors"
"miniflux.app/v2/internal/locale"
"miniflux.app/v2/internal/logger"
"github.com/gorilla/mux"
)
//go:embed templates/common/*.html
var commonTemplateFiles embed.FS
//go:embed templates/views/*.html
var viewTemplateFiles embed.FS
//go:embed templates/standalone/*.html
var standaloneTemplateFiles embed.FS
// Engine handles the templating system.
type Engine struct {
templates map[string]*template.Template
funcMap *funcMap
}
// NewEngine returns a new template engine.
func NewEngine(router *mux.Router) *Engine {
return &Engine{
templates: make(map[string]*template.Template),
funcMap: &funcMap{router},
}
}
// ParseTemplates parses template files embed into the application.
func (e *Engine) ParseTemplates() error {
var commonTemplateContents strings.Builder
dirEntries, err := commonTemplateFiles.ReadDir("templates/common")
if err != nil {
return err
}
for _, dirEntry := range dirEntries {
fileData, err := commonTemplateFiles.ReadFile("templates/common/" + dirEntry.Name())
if err != nil {
return err
}
commonTemplateContents.Write(fileData)
}
dirEntries, err = viewTemplateFiles.ReadDir("templates/views")
if err != nil {
return err
}
for _, dirEntry := range dirEntries {
templateName := dirEntry.Name()
fileData, err := viewTemplateFiles.ReadFile("templates/views/" + dirEntry.Name())
if err != nil {
return err
}
var templateContents strings.Builder
templateContents.WriteString(commonTemplateContents.String())
templateContents.Write(fileData)
logger.Debug("[Template] Parsing: %s", templateName)
e.templates[templateName] = template.Must(template.New("main").Funcs(e.funcMap.Map()).Parse(templateContents.String()))
}
dirEntries, err = standaloneTemplateFiles.ReadDir("templates/standalone")
if err != nil {
return err
}
for _, dirEntry := range dirEntries {
templateName := dirEntry.Name()
fileData, err := standaloneTemplateFiles.ReadFile("templates/standalone/" + dirEntry.Name())
if err != nil {
return err
}
logger.Debug("[Template] Parsing: %s", templateName)
e.templates[templateName] = template.Must(template.New("base").Funcs(e.funcMap.Map()).Parse(string(fileData)))
}
return nil
}
// Render process a template.
func (e *Engine) Render(name string, data map[string]interface{}) []byte {
tpl, ok := e.templates[name]
if !ok {
logger.Fatal("[Template] The template %s does not exists", name)
}
printer := locale.NewPrinter(data["language"].(string))
// Functions that need to be declared at runtime.
tpl.Funcs(template.FuncMap{
"elapsed": func(timezone string, t time.Time) string {
return elapsedTime(printer, timezone, t)
},
"t": func(key interface{}, args ...interface{}) string {
switch k := key.(type) {
case string:
return printer.Printf(k, args...)
case errors.LocalizedError:
return k.Localize(printer)
case *errors.LocalizedError:
return k.Localize(printer)
case error:
return k.Error()
default:
return ""
}
},
"plural": func(key string, n int, args ...interface{}) string {
return printer.Plural(key, n, args...)
},
})
var b bytes.Buffer
err := tpl.ExecuteTemplate(&b, "base", data)
if err != nil {
logger.Fatal("[Template] Unable to render template: %v", err)
}
return b.Bytes()
}
|
