weibo video downloader

downloader.php

<?php

date_default_timezone_set('Asia/Shanghai');

if(!isset($argv)){
    echo 'Usage: php downloader.php $url' . PHP_EOL;
    return;
}
$dir = __DIR__ ;
$ua = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.3 Safari/605.1.15';

foreach($argv as $url){
    if($url === 'downloader.php'){
        continue;
    }
    $url_components = explode('/',$url);
    $url_id = end($url_components);

    $url = 'https://weibo.com/ajax/statuses/show?id=' . $url_id;

    echo $url . PHP_EOL;

    $curl = curl_init();

    curl_setopt_array($curl, array(
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => "",
        CURLOPT_MAXREDIRS => 3,
        CURLOPT_TIMEOUT => 10,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => "GET",
        CURLOPT_HTTPHEADER => array(
            "User-Agent: $ua",
            "Cache-Control: no-cache",
        ),
    ));

    $response = curl_exec($curl);
    $err = curl_error($curl);

    curl_close($curl);

    if ($err) {
        echo  "cURL Error #:" . $err . PHP_EOL;
        continue;
    }
    
    $data = json_decode($response);
    //print_r($data);
    if(!isset($data->page_info->media_info->playback_list)){
        echo  "Data Error #: no page_info->media_info->playback_list"  . PHP_EOL;
        continue;
    }

    $playback_list = $data->page_info->media_info->playback_list;
    if(!is_array($playback_list) || !count($playback_list)){
        echo  "Data Error #: page_info->media_info->playback_list empty"  . PHP_EOL;
        continue;
    }

    $playback = $playback_list[0];

    if(!isset($playback->play_info->url)){
        echo  "Data Error #: page_info->media_info->playback_list first no url"  . PHP_EOL;
        continue;
    }
    $mp4_url = $playback->play_info->url;
    echo $mp4_url . PHP_EOL;

    $title =  $url_id . '.mp4';
  
    // customization
    // if(isset($data->page_info->media_info->kol_title)){
    //     $title = md5($data->page_info->media_info->kol_title) . '-' . $title;
    // }

    if(file_exists("$dir/$title")){
        continue;
    }
    exec("wget '$mp4_url' -O '$dir/$title'");
    //break;
}