:art: Cloud region scoped announcement

kernel/model/liandi.go

@@ -302,7 +302,9 @@ func refreshAnnouncement() {
 		}
 		if !exist {
 			existingAnnouncements = append(existingAnnouncements, announcement)
-			newAnnouncements = append(newAnnouncements, announcement)
+			if Conf.CloudRegion == announcement.Region {
+				newAnnouncements = append(newAnnouncements, announcement)
+			}
 		}
 	}
 

kernel/model/updater.go

@@ -211,9 +211,10 @@ func sha256Hash(filename string) (ret string, err error) {
 }
 
 type Announcement struct {
-	Id    string `json:"id"`
-	Title string `json:"title"`
-	URL   string `json:"url"`
+	Id     string `json:"id"`
+	Title  string `json:"title"`
+	URL    string `json:"url"`
+	Region int    `json:"region"`
 }
 
 func GetAnnouncements() (ret []*Announcement) {
@@ -231,9 +232,10 @@ func GetAnnouncements() (ret []*Announcement) {
 	for _, announcement := range announcements {
 		ann := announcement.(map[string]interface{})
 		ret = append(ret, &Announcement{
-			Id:    ann["id"].(string),
-			Title: ann["title"].(string),
-			URL:   ann["url"].(string),
+			Id:     ann["id"].(string),
+			Title:  ann["title"].(string),
+			URL:    ann["url"].(string),
+			Region: int(ann["region"].(float64)),
 		})
 	}
 	return