badguardhome/internal/home/i18n.go
Ainar Garipov c129361e55 Pull request: 2305 limit message size
Merge in DNS/adguard-home from 2305-limit-message-size to master

Closes #2305.

Squashed commit of the following:

commit 6edd1e0521277a680f0053308efcf3d9cacc8e62
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Nov 23 14:03:36 2020 +0300

    aghio: fix final inaccuracies

commit 4dd382aaf25132b31eb269749a2cd36daf0cb792
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Nov 23 13:59:10 2020 +0300

    all: improve code quality

commit 060f923f6023d0e6f26441559b7023d5e5f96843
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Nov 23 13:10:57 2020 +0300

    aghio: add validation to constructor

commit f57a2f596f5dc578548241c315c68dce7fc93905
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Nov 20 19:19:26 2020 +0300

    all: fix minor inaccuracies

commit 93462c71725d3d00655a4bd565b77e64451fff60
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Nov 20 19:13:23 2020 +0300

    home: make test name follow convention

commit 4922986ad84481b054479c43b4133a1b97bee86b
Merge: 1f5472abc 046ec13fd
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Nov 20 19:09:01 2020 +0300

    Merge branch 'master' into 2305-limit-message-size

commit 1f5472abcfa7427f389825fc59eb4253e1e2bfb7
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Nov 20 19:08:21 2020 +0300

    aghio: improve readability

commit 60dc706b093fa22bbf62f13b2341934364ddc4df
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Nov 20 18:44:08 2020 +0300

    home: cover middleware with test

commit bedf436b947ca1fa4493af2fc94f1f40beec7c35
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Nov 20 17:10:23 2020 +0300

    aghio: improved error informativeness

commit 682c5da9f21fa330fb3536bb1c112129c91b9990
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Nov 20 13:37:51 2020 +0300

    all: limit readers for ReadAll dealing with miscellanious data.

commit 78c6dd8d90a0a43fe6ee3f9ed4d5fc637b15ba74
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Nov 19 20:07:43 2020 +0300

    all: handle ReadAll calls dealing with request's bodies.

commit bfe1a6faf6468eb44515e2b0ecffa8c51f90b7e8
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Nov 19 17:25:34 2020 +0300

    home: add middlewares

commit bbd1d491b318e6ba07f8af23ad546183383783a8
Merge: 7b77c2cad 62a8fe0b7
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Nov 19 16:44:04 2020 +0300

    Merge branch 'master' into 2305-limit-message-size

commit 7b77c2cad03154177392460982e1d73ee2a30177
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Tue Nov 17 15:33:33 2020 +0300

    aghio: create package
2020-11-23 14:14:08 +03:00

96 lines
2.0 KiB
Go

package home
import (
"fmt"
"io/ioutil"
"net/http"
"strings"
"github.com/AdguardTeam/golibs/log"
)
// --------------------
// internationalization
// --------------------
var allowedLanguages = map[string]bool{
"be": true,
"bg": true,
"cs": true,
"da": true,
"de": true,
"en": true,
"es": true,
"fa": true,
"fr": true,
"hr": true,
"hu": true,
"id": true,
"it": true,
"ja": true,
"ko": true,
"nl": true,
"no": true,
"pl": true,
"pt-br": true,
"pt-pt": true,
"ro": true,
"ru": true,
"si-lk": true,
"sk": true,
"sl": true,
"sr-cs": true,
"sv": true,
"th": true,
"tr": true,
"vi": true,
"zh-cn": true,
"zh-hk": true,
"zh-tw": true,
}
func isLanguageAllowed(language string) bool {
l := strings.ToLower(language)
return allowedLanguages[l]
}
func handleI18nCurrentLanguage(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
log.Printf("config.Language is %s", config.Language)
_, err := fmt.Fprintf(w, "%s\n", config.Language)
if err != nil {
msg := fmt.Sprintf("Unable to write response json: %s", err)
log.Println(msg)
http.Error(w, msg, http.StatusInternalServerError)
return
}
}
func handleI18nChangeLanguage(w http.ResponseWriter, r *http.Request) {
// This use of ReadAll is safe, because request's body is now limited.
body, err := ioutil.ReadAll(r.Body)
if err != nil {
msg := fmt.Sprintf("failed to read request body: %s", err)
log.Println(msg)
http.Error(w, msg, http.StatusBadRequest)
return
}
language := strings.TrimSpace(string(body))
if language == "" {
msg := "empty language specified"
log.Println(msg)
http.Error(w, msg, http.StatusBadRequest)
return
}
if !isLanguageAllowed(language) {
msg := fmt.Sprintf("unknown language specified: %s", language)
log.Println(msg)
http.Error(w, msg, http.StatusBadRequest)
return
}
config.Language = language
onConfigModified()
returnOK(w)
}