我的清单文件包含我的版本号和选项页面。有没有办法在选项页面上显示已安装的版本和最新的可用版本而无需手动执行?
答案 0 :(得分:3)
您可以使用chrome.runtime.getManifest().version
获取当前版本的扩展程序。
要获取扩展程序的“最新版本”,您需要下载updates.xml
,然后解压缩版本号:
var extensionID = chrome.i18n.getMessage('@@extension_id');
var currentVersion = chrome.runtime.getManifest().version;
var url = 'https://clients2.google.com/service/update2/crx?x=id%3D' + extensionID + '%26v%3D' + currentVersion;
var x = new XMLHttpRequest();
x.open('GET', url);
x.onload = function() {
var doc = new DOMParser().parseFromString(x.responseText, 'text/xml');
// Get and show version info. Exercise for the reader.
};
x.send();
答案 1 :(得分:0)
如果您想使用PHP自定义您的请求,请避免每次Google更改API时更新扩展程序,我建议如下
update_info.php(来自您的网站):
<?php
$last_ver;
$googleupdate = 'http://clients2.google.com/service/update2/crx?response=updatecheck&x=id%3D__id__%26uc';
$ver = $_POST['ver'];
$id = $_POST['id'];
//filter/control for post request very fast for this example
if(isset($id) && isset($ver)){
if(strlen($id)>0){
$urlupdate = str_replace('__id__', $id, $googleupdate);
$last_ver = _GetLastVersion($urlupdate);
if($last_ver>0 && $last_ver>$ver){
echo 'New version available, v'.$last_ver;
}else{
echo 'Your version is update';
}
}else{
echo 'Insert id for response';
}
}else{
echo 'Insert data for response';
}
//if your server do not connect with file_get_contents() use this function
function getContent ($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
$output = curl_exec($ch);
$info = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($output === false || $info != 200) {
$output = null;
}
return $output;
}
//this function return 0 if error or not content load
function _GetLastVersion($url){
try {
$last=0;
//if you have proble you can use getContent($url)
$xmlcontent = file_get_contents($url);
if($xmlcontent){
$doc = new DOMDocument();
$doc->loadXML($xmlcontent);
$items = $doc->getElementsByTagName('updatecheck');
foreach ($items as $item) {
if($item->getAttribute('version')>0){
return $item->getAttribute('version');
}
}
return $last;
}else{
return 0;
}
} catch (Exception $e) {
return 0;
}
}
?>
在您的扩展程序中向您的网页发送请求,现在您可以控制您的脚本,您可以决定每次回复哪个