/
handler_rss.go
145 lines (128 loc) · 3.54 KB
/
handler_rss.go
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// This code is under BSD license. See license-bsd.txt
package main
import (
"atom"
"bytes"
"fmt"
"html/template"
"net/http"
"strings"
"time"
)
const tmplRssAll = `
Recent {{.AppName}} translations:
<ul>
{{range .Translations}}
<li>'{{.User}}' translated '{{.Text}}' as '{{.Translation}}' in language {{.Lang}}</li>
{{end}}
</ul>
`
const tmplRssOneLang = `
<p>Untranslated strings: {{.UntranslatedCount}}</p>
<p>Recent {{.AppName}} translations for language {{.Lang}}
<ul>
{{range .Translations}}
<li>'{{.User}}' translated '{{.Text}}' as '{{.Translation}}' in language {{.Lang}}</li>
{{end}}
</ul>
</p>
`
var tRssAll = template.Must(template.New("rssall").Parse(tmplRssAll))
var tRssForLang = template.Must(template.New("rssforlang").Parse(tmplRssOneLang))
type RssModel struct {
AppName string
Translations []Edit
// only valid for tmplRssOneLang
Lang string
UntranslatedCount int
}
// returns "" on error
func templateToString(t *template.Template, data interface{}) string {
var buf bytes.Buffer
err := t.Execute(&buf, data)
if err != nil {
logger.Errorf("Failed to execute template '%s', error: %s", t.Name(), err.Error())
return ""
}
return string(buf.Bytes())
}
func getRssAll(app *App) string {
edits := app.translationLog.recentEdits(10)
pubTime := time.Now()
if len(edits) > 0 {
pubTime = edits[0].Time
}
title := fmt.Sprintf("%s translations on AppTranslator.org", app.Name)
// TODO: technically should url-escape
link := fmt.Sprintf("http://www.apptranslator.org/rss?app=%s", app.Name)
feed := &atom.Feed{
Title: title,
Link: link,
PubDate: pubTime,
}
model := &RssModel{AppName: app.Name, Translations: edits}
html := templateToString(tRssAll, model)
link = fmt.Sprintf("http://www.apptranslator.org/app/%s", app.Name)
e := &atom.Entry{
Title: title,
Link: link,
Description: html,
PubDate: pubTime}
feed.AddEntry(e)
s, err := feed.GenXml()
if err != nil {
return "Failed to generate XML feed"
}
return s
}
func getRssForLang(app *App, lang string) string {
pubTime := time.Now()
edits := app.translationLog.editsForLang(lang, 10)
if len(edits) > 0 {
pubTime = edits[0].Time
}
title := fmt.Sprintf("%s %s translations on AppTranslator.org", app.Name, lang)
// TODO: technically should url-escape
link := fmt.Sprintf("http://www.apptranslator.org/rss?app=%s&lang=%s", app.Name, lang)
feed := &atom.Feed{
Title: title,
Link: link,
PubDate: pubTime,
}
model := &RssModel{AppName: app.Name, Translations: edits}
model.UntranslatedCount = app.translationLog.UntranslatedForLang(lang)
html := templateToString(tRssForLang, model)
title = fmt.Sprintf("%d missing %s %s translations", model.UntranslatedCount, app.Name, lang)
link = fmt.Sprintf("http://www.apptranslator.org/app/%s/%s", app.Name, lang)
e := &atom.Entry{
Title: title,
Link: link,
Description: html,
PubDate: pubTime}
feed.AddEntry(e)
s, err := feed.GenXml()
if err != nil {
return "Failed to generate XML feed"
}
return s
}
// url: /rss?app=$app[&lang=$lang]
func handleRss(w http.ResponseWriter, r *http.Request) {
appName := strings.TrimSpace(r.FormValue("app"))
app := findApp(appName)
if app == nil {
serveErrorMsg(w, fmt.Sprintf("Application \"%s\" doesn't exist", appName))
return
}
lang := strings.TrimSpace(r.FormValue("lang"))
if 0 == len(lang) {
s := getRssAll(app)
w.Write([]byte(s))
return
}
if !IsValidLangCode(lang) {
serveErrorMsg(w, fmt.Sprintf("Language \"%s\" is not valid", lang))
return
}
w.Write([]byte(getRssForLang(app, lang)))
}