1. 支持转账、通话、链接消息的显示

2. 支持名片、视频号、QQ音乐、小程序、定位等消息的显示
3. 支持直播、游戏消息、语音通话、视频通话等消息的显示
4. 解密前判断对数据库是否有读权限
5. system消息html格式转文本

pkg/utils/utils.go

@@ -1,6 +1,8 @@
 package utils
 
 import (
+	"crypto/md5"
+	"encoding/hex"
 	"errors"
 	"fmt"
 	"io"
@@ -8,10 +10,12 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"regexp"
 	"strings"
 
 	"github.com/pkg/browser"
 	"github.com/shirou/gopsutil/v3/disk"
+	"golang.org/x/net/html"
 	"golang.org/x/sys/windows/registry"
 )
 
@@ -150,3 +154,79 @@ func CopyFile(src, dst string) (int64, error) {
 
 	return bytesWritten, nil
 }
+
+func extractTextFromHTML(htmlStr string) string {
+	doc, err := html.Parse(strings.NewReader(htmlStr))
+	if err != nil {
+		fmt.Println("Error parsing HTML:", err)
+		return ""
+	}
+
+	var extractText func(*html.Node) string
+	extractText = func(n *html.Node) string {
+		if n.Type == html.TextNode {
+			return n.Data
+		}
+
+		var text string
+		for c := n.FirstChild; c != nil; c = c.NextSibling {
+			text += extractText(c)
+		}
+		return text
+	}
+
+	return extractText(doc)
+}
+
+func removeCustomTags(input string) string {
+
+	re := regexp.MustCompile(`<(_wc_custom_link_)[^>]*?>`)
+	return re.ReplaceAllString(input, `$2`)
+}
+
+func Html2Text(htmlStr string) string {
+	if htmlStr[0] != '<' {
+		return htmlStr
+	}
+
+	text := extractTextFromHTML(htmlStr)
+	if strings.Contains(text, `<_wc_custom_link_`) {
+		text = "\U0001F9E7" + removeCustomTags(text)
+	}
+
+	return text
+}
+
+func HtmlMsgGetAttr(htmlStr, tag string) map[string]string {
+
+	doc, err := html.Parse(strings.NewReader(htmlStr))
+	if err != nil {
+		fmt.Println("Error parsing HTML:", err)
+		return nil
+	}
+
+	var attributes map[string]string
+	var findAttributes func(*html.Node)
+	findAttributes = func(n *html.Node) {
+		if n.Type == html.ElementNode && n.Data == tag {
+			attributes = make(map[string]string)
+			for _, attr := range n.Attr {
+				attributes[attr.Key] = attr.Val
+			}
+		}
+		for c := n.FirstChild; c != nil; c = c.NextSibling {
+			findAttributes(c)
+		}
+	}
+
+	findAttributes(doc)
+	return attributes
+}
+
+func Hash256Sum(data []byte) string {
+	hash := md5.New()
+	hash.Write([]byte(data))
+	hashSum := hash.Sum(nil)
+
+	return hex.EncodeToString(hashSum)
+}