fix: render description as HTML when rendering message (close #42)

common/public/message.html

@@ -19,7 +19,7 @@
                         <span class="line">发布于：<span class="tag is-light">{{.time}}</span></span>
                     </div>
                     <blockquote>
-                        <p>{{.description}}</p>
+                        {{.description | unescape}}
                     </blockquote>
                     {{.content | unescape}}
                 </article>

common/utils.go

@@ -1,8 +1,10 @@
 package common
 
 import (
+	"bytes"
 	"fmt"
 	"github.com/google/uuid"
+	"github.com/yuin/goldmark"
 	"html/template"
 	"log"
 	"net"
@@ -139,3 +141,13 @@ func Max(a int, b int) int {
 		return b
 	}
 }
+
+func Markdown2HTML(markdown string) (HTML string, err error) {
+	var buf bytes.Buffer
+	err = goldmark.Convert([]byte(markdown), &buf)
+	if err != nil {
+		return fmt.Sprintf("Markdown 渲染出错：%s", err.Error()), err
+	}
+	HTML = buf.String()
+	return
+}