Youtube API - 订阅推送通知 [英] Youtube API - Subscribing to Push Notifications

问题描述

我的最终目标是在 YouTube 用户上传视频时设置一个 Webhook.经过一番研究，我阅读了这篇文章.

My final goal is to set up a Webhook whenever a YouTube user uploads a video. After some research I got to this article.

但是当我到达 https://www.youtube.com/xml/feeds/videos.xml?channel_id=CHANNEL_ID 部分时，我得到了 受限主题尝试订阅 Google/SuperFeedr 集线器时出错.我的回调 URL 也正常工作.

But when I get to the part https://www.youtube.com/xml/feeds/videos.xml?channel_id=CHANNEL_ID, I got Restricted topic error when trying the subscribe to the Google/SuperFeedr hubs. I also got my callback URL working.

我想订阅的主题是:https://www.youtube.com/xml/feeds/videos.xml?channel_id=UC7T8roVtC_3afWKTOGtLlBA

通过浏览器访问时不显示任何内容.

Which shows nothing upon visiting via a browser.

我做错了吗?我已经挣扎了几个小时了，任何帮助表示赞赏.谢谢！

Am I doing something wrong? I've been struggling for a few hours now, any help is appreciated. Thanks!

更新:我发现了这个，但是这些提要没有 rel="hub" 属性，所以如果我想将其订阅到 hub 可能没用.

UPDATE: I found this, but those feeds doesn't have the rel="hub" attribute, so probably useless if I want to subscribe it to hub.

推荐答案

1. 您需要发送订阅频道的请求
2. 改变订阅请求并获取实际更新数据的回调

订阅功能:

subscribe.php 可能如下所示:

<?php

function subscribeYoutubeChannel($channel_id = null, $subscribe = true) {
    $subscribe_url = 'https://pubsubhubbub.appspot.com/subscribe';
    $topic_url = 'https://www.youtube.com/xml/feeds/videos.xml?channel_id={CHANNEL_ID}';
    $callback_url = 'http://' . $_SERVER['SERVER_NAME'] . str_replace(basename($_SERVER['REQUEST_URI']), '', $_SERVER['REQUEST_URI']) . 'youtube_subscribe_callback.php';

    $data = array(
        'hub.mode' => $subscribe ? 'subscribe' : 'unsubscribe',
        'hub.callback' => $callback_url,
        'hub.lease_seconds'=>60*60*24*365,
        'hub.topic'=> str_replace(array(
            '{CHANNEL_ID}'
        ), array(
            $channel_id
        ), $topic_url)
    );

    $opts = array('http' =>
        array(
            'method'  => 'POST',
            'header'  => 'Content-type: application/x-www-form-urlencoded',
            'content' => http_build_query($data)
        )
    );

    $context  = stream_context_create($opts);

    @file_get_contents($subscribe_url, false, $context);

    return preg_match('200', $http_response_header[0]) === 1;
}

请求发送后，pusub服务会调用youtube_subscribe_callback.php来验证订阅它将使用 GET 方法，并希望收到hub_challenge"的答案.之后，如果您将视频上传到您的测试频道 youtube_subscribe_callback.php 将收到带有数据的 POST 请求.

after the request is sent, the pusub service will call youtube_subscribe_callback.php to verify the subscription it will use the GET method and it expects to receive an answer which is "hub_challenge". after that if you upload a video to your test channel youtube_subscribe_callback.php will receive POST request with data.

所以 youtube_subscribe_callback.php(在 subscribeYoutubeChannel 函数中定义)可能如下所示:

so youtube_subscribe_callback.php (defined in subscribeYoutubeChannel function) may look like:

 <?php
    if (isset($_GET['hub_challenge'])) {
        echo $_REQUEST['hub_challenge'];
    } else {

        $video = parseYoutubeUpdate(file_get_contents('php://input'));

    }

    function parseYoutubeUpdate($data) {
        $xml = simplexml_load_string($data, 'SimpleXMLElement', LIBXML_NOCDATA);
        $video_id = substr((string)$xml->entry->id, 9);
        $channel_id = substr((string)$xml->entry->author->uri, 32);
        $published = (string)$xml->entry->published;

        return array(
            'video_id'=>$video_id,
            'channel_id'=>$channel_id,
            'published'=>$published
        );
    }

这篇关于Youtube API - 订阅推送通知的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！