任何现有的 RSS feed url 验证器？

发布于 2024-12-06 22:49:39 字数 1102 浏览 0 评论 0原文

在我开始编写验证器来检查 URL 是否确实指向 RSS 提要之前，我搜索了一些可能存在的验证器，但没有找到任何可靠的验证器。

我只是想问问社区，你们是否知道有一个通过 URL 进行 RSS 验证的工具？

如果我自己写，你有什么建议？

我正在考虑只检查一行文本的第一个实例并确保它定义然后也许检查下一项是节点。

您对此有何想法？是否存在提要不遵循上述语法的情况？

另请注意，我尝试使用的一种方法如下：

$valid = true;

try{
    $content = file_get_contents($feed);
    if (!simplexml_load_string($content)){
        $valid = false;
    }
} catch (Exception $e){
    $valid = false;
}

不幸的是，我似乎无法抑制警告（error_reporting(0) 不起作用..），因此只会向我发送警告垃圾邮件。

解决方案

对于任何感兴趣的人，我使用了 W3C Validator API

$url = "http://feed_url.com";
$validator = "http://validator.w3.org/feed/check.cgi";
$validator .= "?url=".$url;
$validator .= "&output=soap12";

$response = file_get_contents($validator);
$a = strpos($response, '<m:validity>', 0)+12; 
$b = strpos($response, '</m:validity>', $a); 
$result = substr($response, $a, $b-$a); 
echo $result;

这将相应地返回 true 或 false。

原文

Before I dive into writing a validator to check if a URL is actually pointing to an RSS feed, I did a bit of searching for some validators that may exist out there but had little luck with any reliable ones.

I just wanted to ask the community if any of you know of an RSS validator by URL?

If I were to write my own, what do you suggest?

I was thinking of just checking for the first instance of a line of text and making sure it defines <?xml version="1.0" encoding="UTF-8"?> and then perhaps checking that the next item is an <rss> node.

What are your thoughts here? Could there ever be a case where a feed may not follow the syntax stated above?

Also note, one method I attempted to use was the following:

$valid = true;

try{
    $content = file_get_contents($feed);
    if (!simplexml_load_string($content)){
        $valid = false;
    }
} catch (Exception $e){
    $valid = false;
}

Unfortunately it seems that I cannot suppress warnings (error_reporting(0) is not working..) so the just spams me with warnings.

SOLUTION

For anyone that is interested, I used the W3C Validator API

$url = "http://feed_url.com";
$validator = "http://validator.w3.org/feed/check.cgi";
$validator .= "?url=".$url;
$validator .= "&output=soap12";

$response = file_get_contents($validator);
$a = strpos($response, '<m:validity>', 0)+12; 
$b = strpos($response, '</m:validity>', $a); 
$result = substr($response, $a, $b-$a); 
echo $result;

This will return true or false accordingly.

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