Fixed language pack download mode

.gitignore

@@ -1,6 +1,4 @@
 .history
-config.json
-temp.torrent
 .goreleaser.yml
 dist
 .idea
@@ -9,4 +7,5 @@ info
 *.exe
 od
 TestUploadFolder
-OneDriveUploader
+OneDriveUploader
+*.toml

i18n.go

@@ -1,44 +1,125 @@
 package main
 
 import (
-	"io/ioutil"
-	"log"
-	"path"
-
+	"fmt"
 	"github.com/BurntSushi/toml"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
 	"golang.org/x/text/language"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"path"
+	"regexp"
+	"time"
 )
 
 var bundle *i18n.Bundle
 
 func init() {
 	bundle = i18n.NewBundle(language.SimplifiedChinese)
 	bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
-	rd, err := ioutil.ReadDir("i18n")
+	_, err := os.Stat("i18n")
+	if err == nil {
+		rd, err := ioutil.ReadDir("i18n")
+		if err != nil {
+			log.Panic(err)
+		}
+		for _, fi := range rd {
+			if !fi.IsDir() && path.Ext(fi.Name()) == ".toml" {
+				bundle.LoadMessageFile("i18n/" + fi.Name())
+			}
+		}
+	}
+
+	rd, err := ioutil.ReadDir(".")
 	if err != nil {
 		log.Panic(err)
 	}
 	for _, fi := range rd {
 		if !fi.IsDir() && path.Ext(fi.Name()) == ".toml" {
-			bundle.LoadMessageFile("i18n/" + fi.Name())
+			bundle.LoadMessageFile(fi.Name())
 		}
 	}
-	/*bundle.MustParseMessageFileBytes([]byte(
+}
 
-			), "zh-CN.toml")
-		bundle.MustParseMessageFileBytes([]byte(`
-	HelloWorld = "Hello World!"
-	`), "en.toml")*/
+func dropErr(err error) {
+	if err != nil {
+		log.Panic(err)
+	}
+}
 
+func pageDownload(url string) string {
+	client := &http.Client{}
+	req, _ := http.NewRequest("GET", url, nil)
+	// 自定义Header
+	req.Header.Set("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)")
+
+	resp, err := client.Do(req)
+	if err != nil {
+		fmt.Println("http get error", err)
+		return ""
+	}
+	//函数结束后关闭相关链接
+	defer resp.Body.Close()
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		fmt.Println("read error", err)
+		return ""
+	}
+	return string(body)
+}
+
+func GetFileModTime(path string) int64 {
+	f, err := os.Open(path)
+	dropErr(err)
+	defer f.Close()
+
+	fi, err := f.Stat()
+	dropErr(err)
+
+	return fi.ModTime().Unix()
 }
 
 type Loc struct {
 	localize *i18n.Localizer
 }
 
-func (loc *Loc) init(tag string) {
-	loc.localize = i18n.NewLocalizer(bundle, tag)
+func (loc *Loc) init(locLanguage string) {
+	_, err := os.Stat(fmt.Sprintf("%s.toml", locLanguage))
+	if err != nil {
+		resp, err := http.Get(fmt.Sprintf("https://cdn.jsdelivr.net/gh/gaowanliang/OneDriveUploader/i18n/%s.toml", locLanguage))
+		dropErr(err)
+		defer resp.Body.Close()
+		data, err := ioutil.ReadAll(resp.Body)
+		dropErr(err)
+		ioutil.WriteFile(fmt.Sprintf("%s.toml", locLanguage), data, 0666)
+	} else {
+		url := "https://cdn.jsdelivr.net/gh/gaowanliang/OneDriveUploader@latest/i18n/"
+		j := pageDownload(url)
+		var re = regexp.MustCompile(`(?m)i18n/(.*?)"[\s\S]*?<td class="time">(.*?)</td>`)
+		var newLanFileTime int64
+		for _, val := range re.FindAllStringSubmatch(j, -1) {
+			if fmt.Sprintf("%s.toml", locLanguage) == val[1] {
+				t, _ := time.Parse(time.RFC1123, val[2])
+				newLanFileTime = t.Unix()
+			}
+
+		}
+		oldLanFileTime := GetFileModTime(fmt.Sprintf("%s.toml", locLanguage))
+		if newLanFileTime > oldLanFileTime {
+			err := os.RemoveAll(fmt.Sprintf("%s.toml", locLanguage))
+			dropErr(err)
+			resp, err := http.Get(fmt.Sprintf("https://cdn.jsdelivr.net/gh/gaowanliang/OneDriveUploader/i18n/%s.toml", locLanguage))
+			dropErr(err)
+			defer resp.Body.Close()
+			data, err := ioutil.ReadAll(resp.Body)
+			dropErr(err)
+			ioutil.WriteFile(fmt.Sprintf("%s.toml", locLanguage), data, 0644)
+		}
+	}
+	loc.localize = i18n.NewLocalizer(bundle, locLanguage)
 }
 func (loc *Loc) print(tag string) string {
 	return loc.localize.MustLocalize(&i18n.LocalizeConfig{MessageID: tag})