118 lines
3 KiB
Go
118 lines
3 KiB
Go
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// Copyright 2017 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package template
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import (
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"bytes"
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"github.com/miniflux/miniflux2/errors"
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"github.com/miniflux/miniflux2/locale"
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"github.com/miniflux/miniflux2/server/route"
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"github.com/miniflux/miniflux2/server/template/helper"
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"github.com/miniflux/miniflux2/server/ui/filter"
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"html/template"
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"io"
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"log"
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"net/url"
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"strings"
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"time"
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"github.com/gorilla/mux"
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)
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type TemplateEngine struct {
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templates map[string]*template.Template
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router *mux.Router
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translator *locale.Translator
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currentLocale *locale.Language
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}
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func (t *TemplateEngine) ParseAll() {
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funcMap := template.FuncMap{
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"route": func(name string, args ...interface{}) string {
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return route.GetRoute(t.router, name, args...)
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},
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"noescape": func(str string) template.HTML {
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return template.HTML(str)
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},
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"proxyFilter": func(data string) string {
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return filter.ImageProxyFilter(t.router, data)
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},
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"domain": func(websiteURL string) string {
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parsedURL, err := url.Parse(websiteURL)
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if err != nil {
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return websiteURL
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}
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return parsedURL.Host
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},
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"hasPrefix": func(str, prefix string) bool {
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return strings.HasPrefix(str, prefix)
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},
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"contains": func(str, substr string) bool {
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return strings.Contains(str, substr)
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},
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"isodate": func(ts time.Time) string {
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return ts.Format("2006-01-02 15:04:05")
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},
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"elapsed": func(ts time.Time) string {
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return helper.GetElapsedTime(t.currentLocale, ts)
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},
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"t": func(key interface{}, args ...interface{}) string {
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switch key.(type) {
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case string, error:
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return t.currentLocale.Get(key.(string), args...)
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case errors.LocalizedError:
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err := key.(errors.LocalizedError)
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return err.Localize(t.currentLocale)
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default:
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return ""
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}
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},
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"plural": func(key string, n int, args ...interface{}) string {
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return t.currentLocale.Plural(key, n, args...)
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},
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}
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commonTemplates := ""
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for _, content := range templateCommonMap {
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commonTemplates += content
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}
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for name, content := range templateViewsMap {
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log.Println("Parsing template:", name)
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t.templates[name] = template.Must(template.New("main").Funcs(funcMap).Parse(commonTemplates + content))
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}
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}
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func (t *TemplateEngine) SetLanguage(language string) {
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t.currentLocale = t.translator.GetLanguage(language)
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}
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func (t *TemplateEngine) Execute(w io.Writer, name string, data interface{}) {
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tpl, ok := t.templates[name]
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if !ok {
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log.Fatalf("The template %s does not exists.\n", name)
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}
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var b bytes.Buffer
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err := tpl.ExecuteTemplate(&b, "base", data)
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if err != nil {
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log.Fatalf("Unable to render template: %v\n", err)
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}
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b.WriteTo(w)
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}
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func NewTemplateEngine(router *mux.Router, translator *locale.Translator) *TemplateEngine {
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tpl := &TemplateEngine{
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templates: make(map[string]*template.Template),
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router: router,
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translator: translator,
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}
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tpl.ParseAll()
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return tpl
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}
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