fix: use jsonp

dist/busuanzi.js

@@ -1,16 +1,29 @@
-let xhr = new XMLHttpRequest();
-xhr.open('GET', '//busuanzi.9420.ltd/api', true);
-xhr.send(null);
-xhr.onreadystatechange = function () {
-    if (xhr.readyState === 4) {
-        if (xhr.status === 200) {
-            let data = JSON.parse(xhr.responseText);
-            if (data.success === true) {
-                document.getElementById("busuanzi_page_pv").innerText = data.data['page_pv'];
-                document.getElementById("busuanzi_page_uv").innerText = data.data['page_uv'];
-                document.getElementById("busuanzi_site_pv").innerText = data.data['site_pv'];
-                document.getElementById("busuanzi_site_uv").innerText = data.data['site_uv'];
+var scriptTag;
+var url = "https://busuanzi.9420.ltd/api?callback=BusuanziCallback";
+var tags = ["site_pv", "site_uv", "page_pv", "page_uv"];
+var fetchUrl = function (url, callback) {
+    var str = "BusuanziCallback_" + Math.floor(1099511627776 * Math.random()).toString();
+    window[str] = function (callback) {
+        return function (a) {
+            try {
+                callback(a);
+                scriptTag.parentElement.removeChild(scriptTag);
             }
-        }
-    }
+            catch (c) { }
+        };
+    }(callback);
+    scriptTag = document.createElement("script");
+    scriptTag.type = "text/javascript";
+    scriptTag.defer = true;
+    scriptTag.src = url.replace("BusuanziCallback", str);
+    scriptTag.referrerPolicy = "no-referrer-when-downgrade";
+    document.getElementsByTagName("head")[0].appendChild(scriptTag);
 };
+fetchUrl(url, function (a) {
+    tags.map(function (tag) {
+        var ele = document.getElementById("busuanzi_".concat(tag));
+        if (ele) {
+            ele.innerHTML = a[tag];
+        }
+    });
+});

dist/busuanzi.ts

@@ -0,0 +1,31 @@
+let scriptTag: HTMLScriptElement;
+
+const url = "https://busuanzi.9420.ltd/api?callback=BusuanziCallback";
+const tags:Array<any> = ["site_pv","site_uv", "page_pv", "page_uv"];
+
+const fetchUrl = (url: string, callback: Function) => {
+    let str: string = "BusuanziCallback_" + Math.floor(1099511627776 * Math.random()).toString();
+    window[str] = function(callback: Function){
+        return function(a) {
+            try {
+                callback(a);
+                scriptTag.parentElement.removeChild(scriptTag)
+            } catch (c) {}
+        }
+    }(callback)
+    scriptTag = document.createElement("script");
+    scriptTag.type = "text/javascript"
+    scriptTag.defer = true;
+    scriptTag.src = url.replace("BusuanziCallback",str);
+    scriptTag.referrerPolicy = "no-referrer-when-downgrade"
+    document.getElementsByTagName("head")[0].appendChild(scriptTag)
+   }
+
+fetchUrl(url, function(a) {
+    tags.map(tag => {
+        let ele = document.getElementById(`busuanzi_${tag}`);
+        if (ele) {
+            ele.innerHTML = a[tag];
+        }
+    })
+})

dist/index.html

@@ -5,7 +5,6 @@
     <title>不蒜子 - powered by xcsoft</title>
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <meta name="description" content="基于golang的简易页面访问统计">
-    <script src="https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-M/jquery/3.6.0/jquery.min.js" type="application/javascript"></script>
     <link href="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/bootstrap/5.1.3/css/bootstrap.min.css" type="text/css" rel="stylesheet" />
     <script src="https://lf9-cdn-tos.bytecdntp.com/cdn/expire-1-M/bootstrap/5.1.3/js/bootstrap.bundle.min.js" type="application/javascript"></script>
     <!-- 不蒜子 -->

main.go

@@ -26,7 +26,7 @@ func main() {
 	r.Use(web.AccessControl())
 
 	r.LoadHTMLFiles("dist/index.html")
-	r.StaticFile("/js", "dist/busuanzi.min.js")
+	r.StaticFile("/js", "dist/busuanzi.js")
 	// router
 	r.GET("/", web.Index)
 	r.GET("/api", web.ApiHandler)

web/api.go

@@ -34,6 +34,19 @@ func ApiHandler(c *gin.Context) { // test redisHelper
 	// count
 	sitePv, siteUv, pagePv, pageUv := core.Count(host, path, ip)
 
+	// return jsonp
+	var query = c.Request.URL.Query()
+	if query.Get("callback") != "" {
+		// return jsonp
+		c.JSONP(200, gin.H{
+			"site_pv": sitePv,
+			"site_uv": siteUv,
+			"page_pv": pagePv,
+			"page_uv": pageUv,
+		})
+		return
+	}
+
 	c.JSON(200, gin.H{
 		"success": true,
 		"message": "ok",