Unescape and trim whitespace from tag name in URL handling

server/middleware/frontend_middleware.go

@@ -2,6 +2,7 @@ package middleware
 
 import (
 	"fmt"
+	url2 "net/url"
 	"nysoure/server/config"
 	"nysoure/server/service"
 	"nysoure/server/utils"
@@ -94,12 +95,16 @@ func serveIndexHtml(c fiber.Ctx) error {
 		}
 	} else if strings.HasPrefix(path, "/tag/") {
 		tagName := strings.TrimPrefix(path, "/tag/")
+		tagName, err := url2.PathUnescape(tagName)
+		tagName = strings.TrimSpace(tagName)
+		if err == nil {
 			t, err := service.GetTagByName(tagName)
 			if err == nil {
 				title = "Tag: " + t.Name
 				description = utils.ArticleToDescription(t.Description, 256)
 			}
 		}
+	}
 
 	content = strings.ReplaceAll(content, "{{SiteName}}", siteName)
 	content = strings.ReplaceAll(content, "{{Description}}", description)