Merge pull request #2732 from shishkevichd/refactor/refactor-1

Code refactoring

18 files changed, 307 insertions, 325 deletions

diff --git a/web/assets/base64/base64.min.js b/web/assets/base64/base64.min.js
deleted file mode 100644
index 37f374a4..00000000
--- a/web/assets/base64/base64.min.js
+++ /dev/null
@@ -1 +0,0 @@
-(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?module.exports=factory(global):typeof define==="function"&&define.amd?define(factory):factory(global)})(typeof self!=="undefined"?self:typeof window!=="undefined"?window:typeof global!=="undefined"?global:this,function(global){"use strict";var _Base64=global.Base64;var version="2.5.0";var buffer;if(typeof module!=="undefined"&&module.exports){try{buffer=eval("require('buffer').Buffer")}catch(err){buffer=undefined}}var b64chars="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";var b64tab=function(bin){var t={};for(var i=0,l=bin.length;i<l;i++)t[bin.charAt(i)]=i;return t}(b64chars);var fromCharCode=String.fromCharCode;var cb_utob=function(c){if(c.length<2){var cc=c.charCodeAt(0);return cc<128?c:cc<2048?fromCharCode(192|cc>>>6)+fromCharCode(128|cc&63):fromCharCode(224|cc>>>12&15)+fromCharCode(128|cc>>>6&63)+fromCharCode(128|cc&63)}else{var cc=65536+(c.charCodeAt(0)-55296)*1024+(c.charCodeAt(1)-56320);return fromCharCode(240|cc>>>18&7)+fromCharCode(128|cc>>>12&63)+fromCharCode(128|cc>>>6&63)+fromCharCode(128|cc&63)}};var re_utob=/[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;var utob=function(u){return u.replace(re_utob,cb_utob)};var cb_encode=function(ccc){var padlen=[0,2,1][ccc.length%3],ord=ccc.charCodeAt(0)<<16|(ccc.length>1?ccc.charCodeAt(1):0)<<8|(ccc.length>2?ccc.charCodeAt(2):0),chars=[b64chars.charAt(ord>>>18),b64chars.charAt(ord>>>12&63),padlen>=2?"=":b64chars.charAt(ord>>>6&63),padlen>=1?"=":b64chars.charAt(ord&63)];return chars.join("")};var btoa=global.btoa?function(b){return global.btoa(b)}:function(b){return b.replace(/[\s\S]{1,3}/g,cb_encode)};var _encode=buffer?buffer.from&&Uint8Array&&buffer.from!==Uint8Array.from?function(u){return(u.constructor===buffer.constructor?u:buffer.from(u)).toString("base64")}:function(u){return(u.constructor===buffer.constructor?u:new buffer(u)).toString("base64")}:function(u){return btoa(utob(u))};var encode=function(u,urisafe){return!urisafe?_encode(String(u)):_encode(String(u)).replace(/[+\/]/g,function(m0){return m0=="+"?"-":"_"}).replace(/=/g,"")};var encodeURI=function(u){return encode(u,true)};var re_btou=new RegExp(["[À-ß][€-¿]","[à-ï][€-¿]{2}","[ð-÷][€-¿]{3}"].join("|"),"g");var cb_btou=function(cccc){switch(cccc.length){case 4:var cp=(7&cccc.charCodeAt(0))<<18|(63&cccc.charCodeAt(1))<<12|(63&cccc.charCodeAt(2))<<6|63&cccc.charCodeAt(3),offset=cp-65536;return fromCharCode((offset>>>10)+55296)+fromCharCode((offset&1023)+56320);case 3:return fromCharCode((15&cccc.charCodeAt(0))<<12|(63&cccc.charCodeAt(1))<<6|63&cccc.charCodeAt(2));default:return fromCharCode((31&cccc.charCodeAt(0))<<6|63&cccc.charCodeAt(1))}};var btou=function(b){return b.replace(re_btou,cb_btou)};var cb_decode=function(cccc){var len=cccc.length,padlen=len%4,n=(len>0?b64tab[cccc.charAt(0)]<<18:0)|(len>1?b64tab[cccc.charAt(1)]<<12:0)|(len>2?b64tab[cccc.charAt(2)]<<6:0)|(len>3?b64tab[cccc.charAt(3)]:0),chars=[fromCharCode(n>>>16),fromCharCode(n>>>8&255),fromCharCode(n&255)];chars.length-=[0,0,2,1][padlen];return chars.join("")};var _atob=global.atob?function(a){return global.atob(a)}:function(a){return a.replace(/\S{1,4}/g,cb_decode)};var atob=function(a){return _atob(String(a).replace(/[^A-Za-z0-9\+\/]/g,""))};var _decode=buffer?buffer.from&&Uint8Array&&buffer.from!==Uint8Array.from?function(a){return(a.constructor===buffer.constructor?a:buffer.from(a,"base64")).toString()}:function(a){return(a.constructor===buffer.constructor?a:new buffer(a,"base64")).toString()}:function(a){return btou(_atob(a))};var decode=function(a){return _decode(String(a).replace(/[-_]/g,function(m0){return m0=="-"?"+":"/"}).replace(/[^A-Za-z0-9\+\/]/g,""))};var noConflict=function(){var Base64=global.Base64;global.Base64=_Base64;return Base64};global.Base64={VERSION:version,atob:atob,btoa:btoa,fromBase64:decode,toBase64:encode,utob:utob,encode:encode,encodeURI:encodeURI,btou:btou,decode:decode,noConflict:noConflict,__buffer__:buffer};if(typeof Object.defineProperty==="function"){var noEnum=function(v){return{value:v,enumerable:false,writable:true,configurable:true}};global.Base64.extendString=function(){Object.defineProperty(String.prototype,"fromBase64",noEnum(function(){return decode(this)}));Object.defineProperty(String.prototype,"toBase64",noEnum(function(urisafe){return encode(this,urisafe)}));Object.defineProperty(String.prototype,"toBase64URI",noEnum(function(){return encode(this,true)}))}}if(global["Meteor"]){Base64=global.Base64}if(typeof module!=="undefined"&&module.exports){module.exports.Base64=global.Base64}else if(typeof define==="function"&&define.amd){define([],function(){return global.Base64})}return{Base64:global.Base64}});
\ No newline at end of file
diff --git a/web/assets/js/langs.js b/web/assets/js/langs.js
index 823160ad..8681761c 100644
--- a/web/assets/js/langs.js
+++ b/web/assets/js/langs.js
@@ -62,20 +62,20 @@ const supportLangs = [
 ];
 
 function getLang() {
-	let lang = getCookie("lang");
+	let lang = CookieManager.getCookie("lang");
 
 	if (!lang) {
 		if (window.navigator) {
 			lang = window.navigator.language || window.navigator.userLanguage;
 
 			if (isSupportLang(lang)) {
-				setCookie("lang", lang, 150);
+				CookieManager.setCookie("lang", lang, 150);
 			} else {
-				setCookie("lang", "en-US", 150);
+				CookieManager.setCookie("lang", "en-US", 150);
 				window.location.reload();
 			}
 		} else {
-			setCookie("lang", "en-US", 150);
+			CookieManager.setCookie("lang", "en-US", 150);
 			window.location.reload();
 		}
 	}
@@ -88,7 +88,7 @@ function setLang(lang) {
 		lang = "en-US";
 	}
 
-	setCookie("lang", lang, 150);
+	CookieManager.setCookie("lang", lang, 150);
 	window.location.reload();
 }
 
diff --git a/web/assets/js/model/dbinbound.js b/web/assets/js/model/dbinbound.js
index aeae1a75..45301ddd 100644
--- a/web/assets/js/model/dbinbound.js
+++ b/web/assets/js/model/dbinbound.js
@@ -25,11 +25,11 @@ class DBInbound {
     }
 
     get totalGB() {
-        return toFixed(this.total / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.total / SizeFormatter.ONE_GB, 2);
     }
 
     set totalGB(gb) {
-        this.total = toFixed(gb * ONE_GB, 0);
+        this.total = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 
     get isVMess() {
diff --git a/web/assets/js/model/inbound.js b/web/assets/js/model/inbound.js
index d3d7d297..5c3235e1 100644
--- a/web/assets/js/model/inbound.js
+++ b/web/assets/js/model/inbound.js
@@ -1302,7 +1302,7 @@ class Inbound extends XrayCommonClass {
             }
         }
 
-        return 'vmess://' + base64(JSON.stringify(obj, null, 2));
+        return 'vmess://' + Base64.encode(JSON.stringify(obj, null, 2));
     }
 
     genVLESSLink(address = '', port = this.port, forceTls, remark = '', clientId, flow) {
@@ -1474,7 +1474,7 @@ class Inbound extends XrayCommonClass {
         if (this.isSS2022) password.push(settings.password);
         if (this.isSSMultiUser) password.push(clientPassword);
 
-        let link = `ss://${safeBase64(settings.method + ':' + password.join(':'))}@${address}:${port}`;
+        let link = `ss://${Base64.encode(`${settings.method}:${password.join(':')}`, true)}@${address}:${port}`;
         const url = new URL(link);
         for (const [key, value] of params) {
             url.searchParams.set(key, value)
@@ -1837,11 +1837,11 @@ Inbound.VmessSettings.VMESS = class extends XrayCommonClass {
         }
     }
     get _totalGB() {
-        return toFixed(this.totalGB / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.totalGB / SizeFormatter.ONE_GB, 2);
     }
 
     set _totalGB(gb) {
-        this.totalGB = toFixed(gb * ONE_GB, 0);
+        this.totalGB = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 
 };
@@ -1947,11 +1947,11 @@ Inbound.VLESSSettings.VLESS = class extends XrayCommonClass {
         }
     }
     get _totalGB() {
-        return toFixed(this.totalGB / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.totalGB / SizeFormatter.ONE_GB, 2);
     }
 
     set _totalGB(gb) {
-        this.totalGB = toFixed(gb * ONE_GB, 0);
+        this.totalGB = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 };
 Inbound.VLESSSettings.Fallback = class extends XrayCommonClass {
@@ -2099,11 +2099,11 @@ Inbound.TrojanSettings.Trojan = class extends XrayCommonClass {
         }
     }
     get _totalGB() {
-        return toFixed(this.totalGB / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.totalGB / SizeFormatter.ONE_GB, 2);
     }
 
     set _totalGB(gb) {
-        this.totalGB = toFixed(gb * ONE_GB, 0);
+        this.totalGB = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 
 };
@@ -2263,11 +2263,11 @@ Inbound.ShadowsocksSettings.Shadowsocks = class extends XrayCommonClass {
         }
     }
     get _totalGB() {
-        return toFixed(this.totalGB / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.totalGB / SizeFormatter.ONE_GB, 2);
     }
 
     set _totalGB(gb) {
-        this.totalGB = toFixed(gb * ONE_GB, 0);
+        this.totalGB = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 
 };
diff --git a/web/assets/js/util/common.js b/web/assets/js/util/common.js
deleted file mode 100644
index df826aa9..00000000
--- a/web/assets/js/util/common.js
+++ /dev/null
@@ -1,212 +0,0 @@
-const ONE_KB = 1024;
-const ONE_MB = ONE_KB * 1024;
-const ONE_GB = ONE_MB * 1024;
-const ONE_TB = ONE_GB * 1024;
-const ONE_PB = ONE_TB * 1024;
-
-function sizeFormat(size) {
-    if (size <= 0) return "0 B";
-
-    if (size < ONE_KB) {
-        return size.toFixed(0) + " B";
-    } else if (size < ONE_MB) {
-        return (size / ONE_KB).toFixed(2) + " KB";
-    } else if (size < ONE_GB) {
-        return (size / ONE_MB).toFixed(2) + " MB";
-    } else if (size < ONE_TB) {
-        return (size / ONE_GB).toFixed(2) + " GB";
-    } else if (size < ONE_PB) {
-        return (size / ONE_TB).toFixed(2) + " TB";
-    } else {
-        return (size / ONE_PB).toFixed(2) + " PB";
-    }
-}
-
-function cpuSpeedFormat(speed) {
-    if (speed > 1000) {
-        const GHz = speed / 1000;
-        return GHz.toFixed(2) + " GHz";
-    } else {
-        return speed.toFixed(2) + " MHz";
-    }
-}
-
-function cpuCoreFormat(cores) {
-    if (cores === 1) {
-        return "1 Core";
-    } else {
-        return cores + " Cores";
-    }
-}
-
-function base64(str) {
-    return Base64.encode(str);
-}
-
-function safeBase64(str) {
-    return base64(str)
-        .replace(/\+/g, '-')
-        .replace(/=/g, '')
-        .replace(/\//g, '_');
-}
-
-function formatSecond(second) {
-    if (second < 60) {
-        return second.toFixed(0) + 's';
-    } else if (second < 3600) {
-        return (second / 60).toFixed(0) + 'm';
-    } else if (second < 3600 * 24) {
-        return (second / 3600).toFixed(0) + 'h';
-    } else {
-        day = Math.floor(second / 3600 / 24);
-        remain = ((second / 3600) - (day * 24)).toFixed(0);
-        return day + 'd' + (remain > 0 ? ' ' + remain + 'h' : '');
-    }
-}
-
-function copyToClipboard(text) {
-    // !! here old way of copying is used because not everyone can afford https connection
-    return new Promise((resolve) => {
-        const textarea = document.createElement("textarea");
-
-        textarea.value = text;
-
-        document.body.appendChild(textarea);
-
-        textarea.select();
-        document.execCommand("copy");
-
-        document.body.removeChild(textarea);
-
-        resolve(text)
-    })
-}  
-
-function addZero(num) {
-    if (num < 10) {
-        return "0" + num;
-    } else {
-        return num;
-    }
-}
-
-function toFixed(num, n) {
-    n = Math.pow(10, n);
-    return Math.floor(num * n) / n;
-}
-
-function debounce(fn, delay) {
-    var timeoutID = null;
-    return function () {
-        clearTimeout(timeoutID);
-        var args = arguments;
-        var that = this;
-        timeoutID = setTimeout(function () {
-            fn.apply(that, args);
-        }, delay);
-    };
-}
-
-function getCookie(cname) {
-    let name = cname + '=';
-    let ca = document.cookie.split(';');
-    for (let i = 0; i < ca.length; i++) {
-        let c = ca[i];
-        while (c.charAt(0) == ' ') {
-            c = c.substring(1);
-        }
-        if (c.indexOf(name) == 0) {
-            // decode cookie value only
-            return decodeURIComponent(c.substring(name.length, c.length));
-        }
-    }
-    return '';
-}
-
-
-function setCookie(cname, cvalue, exdays) {
-    const d = new Date();
-    d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000);
-    let expires = 'expires=' + d.toUTCString();
-    // encode cookie value
-    document.cookie = cname + '=' + encodeURIComponent(cvalue) + ';' + expires + ';path=/';
-}
-
-function usageColor(data, threshold, total) {
-    switch (true) {
-        case data === null:
-            return "purple";
-        case total < 0:
-            return "green";
-        case total == 0:
-            return "purple";
-        case data < total - threshold:
-            return "green";
-        case data < total:
-            return "orange";
-        default:
-            return "red";
-    }
-}
-
-function clientUsageColor(clientStats, trafficDiff) {
-    switch (true) {
-        case !clientStats || clientStats.total == 0:
-            return "#7a316f"; // purple
-        case clientStats.up + clientStats.down < clientStats.total - trafficDiff:
-            return "#008771"; // Green
-        case clientStats.up + clientStats.down < clientStats.total:
-            return "#f37b24"; // Orange
-        default:
-            return "#cf3c3c"; // Red
-    }
-}
-
-function userExpiryColor(threshold, client, isDark = false) {
-    if (!client.enable) {
-        return isDark ? '#2c3950' : '#bcbcbc';
-    }
-    now = new Date().getTime(),
-        expiry = client.expiryTime;
-    switch (true) {
-        case expiry === null:
-            return "#7a316f"; // purple
-        case expiry < 0:
-            return "#008771"; // Green
-        case expiry == 0:
-            return "#7a316f"; // purple
-        case now < expiry - threshold:
-            return "#008771"; // Green
-        case now < expiry:
-            return "#f37b24"; // Orange
-        default:
-            return "#cf3c3c"; // Red
-    }
-}
-
-function doAllItemsExist(array1, array2) {
-    for (let i = 0; i < array1.length; i++) {
-        if (!array2.includes(array1[i])) {
-            return false;
-        }
-    }
-    return true;
-}
-
-function buildURL({ host, port, isTLS, base, path }) {
-    if (!host || host.length === 0) host = window.location.hostname;
-    if (!port || port.length === 0) port = window.location.port;
-
-    if (isTLS === undefined) isTLS = window.location.protocol === "https:";
-
-    const protocol = isTLS ? "https:" : "http:";
-
-    port = String(port);
-    if (port === "" || (isTLS && port === "443") || (!isTLS && port === "80")) {
-        port = "";
-    } else {
-        port = `:${port}`;
-    }
-
-    return `${protocol}//${host}${port}${base}${path}`;
-}
diff --git a/web/assets/js/util/date-util.js b/web/assets/js/util/date-util.js
index 50efd6fe..9b4b0f81 100644
--- a/web/assets/js/util/date-util.js
+++ b/web/assets/js/util/date-util.js
@@ -108,14 +108,14 @@ Date.prototype.setMaxTime = function () {
  * Formatting date
  */
 Date.prototype.formatDate = function () {
-    return this.getFullYear() + "-" + addZero(this.getMonth() + 1) + "-" + addZero(this.getDate());
+    return this.getFullYear() + "-" + NumberFormatter.addZero(this.getMonth() + 1) + "-" + NumberFormatter.addZero(this.getDate());
 };
 
 /**
  * Format time
  */
 Date.prototype.formatTime = function () {
-    return addZero(this.getHours()) + ":" + addZero(this.getMinutes()) + ":" + addZero(this.getSeconds());
+    return NumberFormatter.addZero(this.getHours()) + ":" + NumberFormatter.addZero(this.getMinutes()) + ":" + NumberFormatter.addZero(this.getSeconds());
 };
 
 /**
diff --git a/web/assets/js/util/utils.js b/web/assets/js/util/index.js
index 30f1f6a2..8a6a4703 100644
--- a/web/assets/js/util/utils.js
+++ b/web/assets/js/util/index.js
@@ -478,4 +478,195 @@ class Wireguard {
             privateKey: secretKey.length > 0 ? secretKey : this.keyToBase64(privateKey)
         };
     }
+}
+
+class ClipboardManager {
+    static copyText(content = "") {
+        // !! here old way of copying is used because not everyone can afford https connection
+        return new Promise((resolve) => {
+            try {
+                const textarea = window.document.createElement('textarea');
+    
+                textarea.style.fontSize = '12pt';
+                textarea.style.border = '0';
+                textarea.style.padding = '0';
+                textarea.style.margin = '0';
+                textarea.style.position = 'absolute';
+                textarea.style.left = '-9999px';
+                textarea.style.top = `${window.pageYOffset || document.documentElement.scrollTop}px`;
+                textarea.setAttribute('readonly', '');
+                textarea.value = content;
+    
+                window.document.body.appendChild(textarea);
+    
+                textarea.select();
+                window.document.execCommand("copy");
+    
+                window.document.body.removeChild(textarea);
+    
+                resolve(true)
+            } catch {
+                resolve(false)
+            }
+        })
+    }
+}
+
+class Base64 {
+    static encode(content = "", safe = false) {
+        if (safe) {
+            return window.btoa(content)
+                .replace(/\+/g, '-')
+                .replace(/=/g, '')
+                .replace(/\//g, '_')
+        }
+
+        return window.btoa(content)
+    }
+
+    static decode(content = "") {
+        return window.atob(content)
+    }
+}
+
+class SizeFormatter {
+    static ONE_KB = 1024;
+    static ONE_MB = this.ONE_KB * 1024;
+    static ONE_GB = this.ONE_MB * 1024;
+    static ONE_TB = this.ONE_GB * 1024;
+    static ONE_PB = this.ONE_TB * 1024;
+
+    static sizeFormat(size) {
+        if (size <= 0) return "0 B";
+        if (size < this.ONE_KB) return size.toFixed(0) + " B";
+        if (size < this.ONE_MB) return (size / this.ONE_KB).toFixed(2) + " KB";
+        if (size < this.ONE_GB) return (size / this.ONE_MB).toFixed(2) + " MB";
+        if (size < this.ONE_TB) return (size / this.ONE_GB).toFixed(2) + " GB";
+        if (size < this.ONE_PB) return (size / this.ONE_TB).toFixed(2) + " TB";
+        return (size / this.ONE_PB).toFixed(2) + " PB";
+    }
+}
+
+class CPUFormatter {
+    static cpuSpeedFormat(speed) {
+        return speed > 1000 ? (speed / 1000).toFixed(2) + " GHz" : speed.toFixed(2) + " MHz";
+    }
+    
+    static cpuCoreFormat(cores) {
+        return cores === 1 ? "1 Core" : cores + " Cores";
+    }
+}
+
+class TimeFormatter {
+    static formatSecond(second) {
+        if (second < 60) return second.toFixed(0) + 's';
+        if (second < 3600) return (second / 60).toFixed(0) + 'm';
+        if (second < 3600 * 24) return (second / 3600).toFixed(0) + 'h';
+        let day = Math.floor(second / 3600 / 24);
+        let remain = ((second / 3600) - (day * 24)).toFixed(0);
+        return day + 'd' + (remain > 0 ? ' ' + remain + 'h' : '');
+    }
+}
+
+class NumberFormatter {
+    static addZero(num) {
+        return num < 10 ? "0" + num : num;
+    }
+    
+    static toFixed(num, n) {
+        n = Math.pow(10, n);
+        return Math.floor(num * n) / n;
+    }
+}
+
+class Utils {
+    static debounce(fn, delay) {
+        let timeoutID = null;
+        return function () {
+            clearTimeout(timeoutID);
+            let args = arguments;
+            let that = this;
+            timeoutID = setTimeout(() => fn.apply(that, args), delay);
+        };
+    }
+}
+
+class CookieManager {
+    static getCookie(cname) {
+        let name = cname + '=';
+        let ca = document.cookie.split(';');
+        for (let c of ca) {
+            c = c.trim();
+            if (c.indexOf(name) === 0) {
+                return decodeURIComponent(c.substring(name.length, c.length));
+            }
+        }
+        return '';
+    }
+    
+    static setCookie(cname, cvalue, exdays) {
+        const d = new Date();
+        d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000);
+        let expires = 'expires=' + d.toUTCString();
+        document.cookie = cname + '=' + encodeURIComponent(cvalue) + ';' + expires + ';path=/';
+    }
+}
+
+class ColorUtils {
+    static usageColor(data, threshold, total) {
+        switch (true) {
+            case data === null: return "purple";
+            case total < 0: return "green";
+            case total == 0: return "purple";
+            case data < total - threshold: return "green";
+            case data < total: return "orange";
+            default: return "red";
+        }
+    }
+    
+    static clientUsageColor(clientStats, trafficDiff) {
+        switch (true) {
+            case !clientStats || clientStats.total == 0: return "#7a316f";
+            case clientStats.up + clientStats.down < clientStats.total - trafficDiff: return "#008771";
+            case clientStats.up + clientStats.down < clientStats.total: return "#f37b24";
+            default: return "#cf3c3c";
+        }
+    }
+    
+    static userExpiryColor(threshold, client, isDark = false) {
+        if (!client.enable) return isDark ? '#2c3950' : '#bcbcbc';
+        let now = new Date().getTime(), expiry = client.expiryTime;
+        switch (true) {
+            case expiry === null: return "#7a316f";
+            case expiry < 0: return "#008771";
+            case expiry == 0: return "#7a316f";
+            case now < expiry - threshold: return "#008771";
+            case now < expiry: return "#f37b24";
+            default: return "#cf3c3c";
+        }
+    }
+}
+
+class ArrayUtils {
+    static doAllItemsExist(array1, array2) {
+        return array1.every(item => array2.includes(item));
+    }
+}
+
+class URLBuilder {
+    static buildURL({ host, port, isTLS, base, path }) {
+        if (!host || host.length === 0) host = window.location.hostname;
+        if (!port || port.length === 0) port = window.location.port;
+        if (isTLS === undefined) isTLS = window.location.protocol === "https:";
+        
+        const protocol = isTLS ? "https:" : "http:";
+        port = String(port);
+        if (port === "" || (isTLS && port === "443") || (!isTLS && port === "80")) {
+            port = "";
+        } else {
+            port = `:${port}`;
+        }
+        
+        return `${protocol}//${host}${port}${base}${path}`;
+    }
 }
\ No newline at end of file
diff --git a/web/html/common/js.html b/web/html/common/js.html
index 301b1df7..2d93935f 100644
--- a/web/html/common/js.html
+++ b/web/html/common/js.html
@@ -5,9 +5,8 @@
 <script src="{{ .base_path }}assets/axios/axios.min.js?{{ .cur_ver }}"></script>
 <script src="{{ .base_path }}assets/qs/qs.min.js"></script>
 <script src="{{ .base_path }}assets/js/axios-init.js?{{ .cur_ver }}"></script>
-<script src="{{ .base_path }}assets/js/util/common.js?{{ .cur_ver }}"></script>
 <script src="{{ .base_path }}assets/js/util/date-util.js?{{ .cur_ver }}"></script>
-<script src="{{ .base_path }}assets/js/util/utils.js?{{ .cur_ver }}"></script>
+<script src="{{ .base_path }}assets/js/util/index.js?{{ .cur_ver }}"></script>
 <script src="{{ .base_path }}assets/js/langs.js"></script>
 <script>
     const basePath = '{{ .base_path }}';
diff --git a/web/html/common/qrcode_modal.html b/web/html/common/qrcode_modal.html
index 117dd640..914290f6 100644
--- a/web/html/common/qrcode_modal.html
+++ b/web/html/common/qrcode_modal.html
@@ -10,7 +10,7 @@
         <a-tag color="purple" class="qr-tag"><span>{{ i18n "pages.settings.subSettings"}}</span></a-tag>
         <tr-qr-bg class="qr-bg-sub">
           <tr-qr-bg-inner class="qr-bg-sub-inner">
-            <canvas @click="copyToClipboard(genSubLink(qrModal.client.subId))" id="qrCode-sub" class="qr-cv"></canvas>
+            <canvas @click="qrModal.copy(genSubLink(qrModal.client.subId))" id="qrCode-sub" class="qr-cv"></canvas>
           </tr-qr-bg-inner>
         </tr-qr-bg>
       </tr-qr-box>
@@ -18,7 +18,7 @@
         <a-tag color="purple" class="qr-tag"><span>{{ i18n "pages.settings.subSettings"}} Json</span></a-tag>
         <tr-qr-bg class="qr-bg-sub">
           <tr-qr-bg-inner class="qr-bg-sub-inner">
-            <canvas @click="copyToClipboard(genSubJsonLink(qrModal.client.subId))" id="qrCode-subJson" class="qr-cv"></canvas>
+            <canvas @click="qrModal.copy(genSubJsonLink(qrModal.client.subId))" id="qrCode-subJson" class="qr-cv"></canvas>
           </tr-qr-bg-inner>
         </tr-qr-bg>
       </tr-qr-box>
@@ -27,7 +27,7 @@
       <tr-qr-box class="qr-box">
         <a-tag color="green" class="qr-tag"><span>[[ row.remark ]]</span></a-tag>
         <tr-qr-bg class="qr-bg">
-          <canvas @click="copyToClipboard(row.link)" :id="'qrCode-'+index" class="qr-cv"></canvas>
+          <canvas @click="qrModal.copy(row.link)" :id="'qrCode-'+index" class="qr-cv"></canvas>
         </tr-qr-bg>
       </tr-qr-box>
     </template>
@@ -78,10 +78,12 @@
       qrModal: qrModal,
     },
     methods: {
-      copyToClipboard(content) {
-        return copyToClipboard(content).then(() => {
-          app.$message.success('{{ i18n "copied" }}')
-        })
+      copy(content) {
+        ClipboardManager
+          .copyText(content)
+          .then(() => {
+            app.$message.success('{{ i18n "copied" }}')
+          })
       },
       setQrCode(elementId, content) {
         new QRious({
diff --git a/web/html/common/text_modal.html b/web/html/common/text_modal.html
index 36589199..c15282b9 100644
--- a/web/html/common/text_modal.html
+++ b/web/html/common/text_modal.html
@@ -28,10 +28,12 @@
             this.visible = true;
         },
         copy: function (content = '') {
-            copyToClipboard(content).then(() => {
-                app.$message.success('{{ i18n "copied" }}')
-                this.close();
-            })
+            ClipboardManager
+                .copyText(content)
+                .then(() => {
+                    app.$message.success('{{ i18n "copied" }}')
+                    this.close();
+                })
         },
         close: function () {
             this.visible = false;
diff --git a/web/html/xui/form/client.html b/web/html/xui/form/client.html
index 0b894f01..c2bcace1 100644
--- a/web/html/xui/form/client.html
+++ b/web/html/xui/form/client.html
@@ -126,10 +126,10 @@
         <a-input-number v-model.number="client._totalGB" :min="0"></a-input-number>
     </a-form-item>
     <a-form-item v-if="isEdit && clientStats" label='{{ i18n "usage" }}'>
-        <a-tag :color="clientUsageColor(clientStats, app.trafficDiff)">
-            [[ sizeFormat(clientStats.up) ]] /
-            [[ sizeFormat(clientStats.down) ]]
-            ([[ sizeFormat(clientStats.up + clientStats.down) ]])
+        <a-tag :color="ColorUtils.clientUsageColor(clientStats, app.trafficDiff)">
+            [[ SizeFormatter.sizeFormat(clientStats.up) ]] /
+            [[ SizeFormatter.sizeFormat(clientStats.down) ]]
+            ([[ SizeFormatter.sizeFormat(clientStats.up + clientStats.down) ]])
         </a-tag>
         <a-tooltip>
             <template slot="title">{{ i18n "pages.inbounds.resetTraffic" }}</template>
diff --git a/web/html/xui/inbound_client_table.html b/web/html/xui/inbound_client_table.html
index 13593cea..fbf0699a 100644
--- a/web/html/xui/inbound_client_table.html
+++ b/web/html/xui/inbound_client_table.html
@@ -55,18 +55,18 @@
     <template slot="content" v-if="client.email">
       <table cellpadding="2" width="100%">
         <tr>
-          <td>↑[[ sizeFormat(getUpStats(record, client.email)) ]]</td>
-          <td>↓[[ sizeFormat(getDownStats(record, client.email)) ]]</td>
+          <td>↑[[ SizeFormatter.sizeFormat(getUpStats(record, client.email)) ]]</td>
+          <td>↓[[ SizeFormatter.sizeFormat(getDownStats(record, client.email)) ]]</td>
         </tr>
         <tr v-if="client.totalGB > 0">
           <td>{{ i18n "remained" }}</td>
-          <td>[[ sizeFormat(getRemStats(record, client.email)) ]]</td>
+          <td>[[ SizeFormatter.sizeFormat(getRemStats(record, client.email)) ]]</td>
         </tr>
       </table>
     </template>
     <table>
       <tr class="tr-table-box">
-        <td class="tr-table-rt"> [[ sizeFormat(getSumStats(record, client.email)) ]] </td>
+        <td class="tr-table-rt"> [[ SizeFormatter.sizeFormat(getSumStats(record, client.email)) ]] </td>
         <td class="tr-table-bar" v-if="!client.enable">
           <a-progress :stroke-color="themeSwitcher.isDarkTheme ? 'rgb(72 84 105)' : '#bcbcbc'" :show-info="false" :percent="statsProgress(record, client.email)" />
         </td>
@@ -124,9 +124,9 @@
           </template>
         </span>
       </template>
-      <a-tag style="min-width: 50px; border: none;" :color="userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)"> [[ remainedDays(client.expiryTime) ]] </a-tag>
+      <a-tag style="min-width: 50px; border: none;" :color="ColorUtils.userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)"> [[ remainedDays(client.expiryTime) ]] </a-tag>
     </a-popover>
-    <a-tag v-else :color="userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)" style="border: none;" class="infinite-tag">
+    <a-tag v-else :color="ColorUtils.userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)" style="border: none;" class="infinite-tag">
       <svg height="10px" width="14px" viewBox="0 0 640 512" fill="currentColor">
         <path d="M484.4 96C407 96 349.2 164.1 320 208.5C290.8 164.1 233 96 155.6 96C69.75 96 0 167.8 0 256s69.75 160 155.6 160C233.1 416 290.8 347.9 320 303.5C349.2 347.9 407 416 484.4 416C570.3 416 640 344.2 640 256S570.3 96 484.4 96zM155.6 368C96.25 368 48 317.8 48 256s48.25-112 107.6-112c67.75 0 120.5 82.25 137.1 112C276 285.8 223.4 368 155.6 368zM484.4 368c-67.75 0-120.5-82.25-137.1-112C364 226.2 416.6 144 484.4 144C543.8 144 592 194.2 592 256S543.8 368 484.4 368z" fill="currentColor"></path>
       </svg>
@@ -172,7 +172,7 @@
           <td colspan="3" style="text-align: center;">{{ i18n "pages.inbounds.traffic" }}</td>
         </tr>
         <tr>
-          <td width="80px" style="margin:0; text-align: right;font-size: 1em;"> [[ sizeFormat(getUpStats(record, client.email) + getDownStats(record, client.email)) ]] </td>
+          <td width="80px" style="margin:0; text-align: right;font-size: 1em;"> [[ SizeFormatter.sizeFormat(getUpStats(record, client.email) + getDownStats(record, client.email)) ]] </td>
           <td width="120px" v-if="!client.enable">
             <a-progress :stroke-color="themeSwitcher.isDarkTheme ? 'rgb(72 84 105)' : '#bcbcbc'" :show-info="false" :percent="statsProgress(record, client.email)" />
           </td>
@@ -181,12 +181,12 @@
               <template slot="content" v-if="c            
                
                    
                        contacts: admin@thfree.ru
                    
                
                
                    
                        mirrors for living