From 1aa29a6262784169bf10da935dc5087dfafb3065 Mon Sep 17 00:00:00 2001
From: XOF <xofine@noreply.localhost>
Date: Wed, 17 Dec 2025 01:55:55 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=20main.go?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 main.go | 76 ++++++++++++++++++++++++++++-----------------------------
 1 file changed, 38 insertions(+), 38 deletions(-)

diff --git a/main.go b/main.go
index 384fc8a..9929cd3 100644
--- a/main.go
+++ b/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"crypto/md5"
 	"crypto/subtle"
+	"encoding/base64"
 	"encoding/xml"
 	"fmt"
 	"html/template"
@@ -22,7 +23,7 @@ const (
 	downloadDir   = "./chrome_versions"
 	checkInterval = 24 * time.Hour
 	maxRetries    = 3
-	updateXMLURL  = "https://tools.google.com/service/update2"
+	updateURL     = "https://tools.google.com/service/update2"
 )
 
 var (
@@ -38,23 +39,11 @@ type Version struct {
 	Time     time.Time
 }
 
-type UpdateCheck struct {
-	XMLName xml.Name `xml:"request"`
-	OS      struct {
-		Platform string `xml:"platform,attr"`
-		Arch     string `xml:"arch,attr"`
-	} `xml:"os"`
-	App struct {
-		AppID   string `xml:"appid,attr"`
-		Version string `xml:"version,attr"`
-		Lang    string `xml:"lang,attr"`
-		UpdateCheck struct{} `xml:"updatecheck"`
-	} `xml:"app"`
-}
-
 type UpdateResponse struct {
-	XMLName xml.Name `xml:"response"`
-	App     struct {
+	XMLName  xml.Name `xml:"response"`
+	Protocol string   `xml:"protocol,attr"`
+	App      struct {
+		Status      string `xml:"status,attr"`
 		UpdateCheck struct {
 			Status string `xml:"status,attr"`
 			URLs   struct {
@@ -63,13 +52,14 @@ type UpdateResponse struct {
 				} `xml:"url"`
 			} `xml:"urls"`
 			Manifest struct {
-				Version  string `xml:"version,attr"`
+				Version string `xml:"version,attr"`
 				Packages struct {
 					Package struct {
-						Name     string `xml:"name,attr"`
-						Required bool   `xml:"required,attr"`
-						Size     int64  `xml:"size,attr"`
-						Hash     string `xml:"hash_sha256,attr"`
+						Name       string `xml:"name,attr"`
+						Required   bool   `xml:"required,attr"`
+						Size       int64  `xml:"size,attr"`
+						Hash       string `xml:"hash,attr"`
+						HashSHA256 string `xml:"hash_sha256,attr"`
 					} `xml:"package"`
 				} `xml:"packages"`
 			} `xml:"manifest"`
@@ -117,42 +107,51 @@ func monitor() {
 	}
 }
 
-func getLatestVersionInfo() (version, downloadURL string, err error) {
+func getLatestVersionInfo() (version, downloadURL, sha256 string, err error) {
 	reqBody := `<?xml version="1.0" encoding="UTF-8"?>
-<request protocol="3.0" version="1.3.23.9" shell_version="1.3.21.103" ismachine="0" sessionid="{3597644B-2952-4F92-AE55-D315F45F80A5}" installsource="ondemandcheckforupdate" requestid="{CD7523AD-A40D-49F4-AEEF-8C114B804658}" dedup="cr" domainjoined="0">
-  <hw sse="1" sse2="1" sse3="1" ssse3="1" sse41="1" sse42="1" avx="1" physmemory="16" />
-  <os platform="win" version="10.0.19045.0" sp="" arch="x64"/>
-  <app appid="{8A69D345-D564-463C-AFF1-A69D9E530F96}" version="" nextversion="" lang="zh-CN" brand="GCEU" client="" installage="1">
-    <updatecheck/>
-  </app>
+<request protocol="3.0" updater="Omaha" updaterversion="1.3.36.372" shell_version="1.3.36.352" ismachine="0" sessionid="{11111111-1111-1111-1111-111111111111}" installsource="taggedmi" requestid="{11111111-1111-1111-1111-111111111111}" dedup="cr" domainjoined="0">
+<hw physmemory="16" sse="1" sse2="1" sse3="1" ssse3="1" sse41="1" sse42="1" avx="1"/>
+<os platform="win" version="10.0.26100.1742" arch="x64"/>
+<app version="" appid="{8A69D345-D564-463C-AFF1-A69D9E530F96}" ap="x64-stable">
+<updatecheck/>
+<data name="install" index="empty"/>
+</app>
 </request>`
 
-	resp, err := http.Post(updateXMLURL, "application/xml", strings.NewReader(reqBody))
+	resp, err := http.Post(updateURL, "application/xml", strings.NewReader(reqBody))
 	if err != nil {
-		return "", "", err
+		return "", "", "", err
 	}
 	defer resp.Body.Close()
 
 	body, _ := io.ReadAll(resp.Body)
-	log.Printf("Update response: %s", string(body))
 
 	var updateResp UpdateResponse
 	if err := xml.Unmarshal(body, &updateResp); err != nil {
-		return "", "", err
+		return "", "", "", err
 	}
 
 	version = updateResp.App.UpdateCheck.Manifest.Version
+	sha256 = updateResp.App.UpdateCheck.Manifest.Packages.Package.HashSHA256
+	packageName := updateResp.App.UpdateCheck.Manifest.Packages.Package.Name
+
 	if len(updateResp.App.UpdateCheck.URLs.URL) > 0 {
-		codebase := updateResp.App.UpdateCheck.URLs.URL[0].Codebase
-		packageName := updateResp.App.UpdateCheck.Manifest.Packages.Package.Name
-		downloadURL = codebase + packageName
+		for _, url := range updateResp.App.UpdateCheck.URLs.URL {
+			if strings.HasPrefix(url.Codebase, "https://dl.google.com") {
+				downloadURL = url.Codebase + packageName
+				break
+			}
+		}
+		if downloadURL == "" {
+			downloadURL = updateResp.App.UpdateCheck.URLs.URL[0].Codebase + packageName
+		}
 	}
 
-	return version, downloadURL, nil
+	return version, downloadURL, sha256, nil
 }
 
 func checkAndDownload() {
-	version, downloadURL, err := getLatestVersionInfo()
+	version, downloadURL, sha256, err := getLatestVersionInfo()
 	if err != nil {
 		log.Printf("Failed to get version info: %v", err)
 		return
@@ -160,6 +159,7 @@ func checkAndDownload() {
 
 	log.Printf("Latest Chrome version: %s", version)
 	log.Printf("Download URL: %s", downloadURL)
+	log.Printf("SHA256: %s", sha256)
 
 	if downloadURL == "" {
 		log.Println("No download URL found")