使用 PHP curl 的 Spotify oauth2。如何获得授权码?

Spotify oauth2 with PHP curl. How to get authorization code?

我试过按照spotify的授权码流程,在获取用户授权的第一关就倒下了。

我试过使用 PHP curl.

如果你看一下我的代码,我做错了什么?

$url           = 'https://accounts.spotify.com/authorize';
$redirect_uri  = urlencode( site_url() );
$curl = curl_init();
 
curl_setopt( $curl, CURLOPT_URL, $url);
curl_setopt( $curl, CURLOPT_FOLLOWLOCATION, true );
curl_setopt( $curl, CURLOPT_HTTPGET, true );
curl_setopt( $curl, CURLOPT_POSTFIELDS, 'state=' );
curl_setopt( $curl, CURLOPT_POSTFIELDS, 'response_type=code' );
curl_setopt( $curl, CURLOPT_POSTFIELDS, 'scope=playlist-read-private%20playlist-modify-private' );
curl_setopt( $curl, CURLOPT_POSTFIELDS, 'client_id=' . $this->client_id );
curl_setopt( $curl, CURLOPT_POSTFIELDS, 'redirect_uri=' . $redirect_uri );
 
curl_exec( $curl );
curl_close( $curl );
 
$fullquery     = 'https://accounts.spotify.com/authorize?response_type=code&state=&client_id=CLIENT_ID&scope=playlist-read-private%20playlist-modify-private&redirect_uri=http%3A%2F%2Flocalhost%3A8888%2Fspotifyapi';

运行 这个 returns 来自 spotify 的 html 块,嵌入到我的页面中,文本为:“错误糟糕!出了点问题,请重试或查看我们的帮助区。

然而,有趣的是,如果我将完整的查询放入我的搜索栏,它会完全按照我的预期工作,将我带到授权页面,并在接受后重定向回我的回调 url,在 url.

中将我的访问代码作为参数

为什么我的 PHP 函数无法获得预期的效果?

如有任何提示,我们将不胜感激。我知道 GitHub 上有一个 php spotify api 包装器我可以使用,但我想自己做一个学习项目。

spotify error response

您必须遵循 3 个步骤。

我通过简单地从上面的数据构建查询,并将其附加到授权 url - 并添加 link 来成功完成上面概述的第一步这一页。像这样:

$data = array(
    'client_id'     => $client_id,
    'redirect_uri'  => $redirect_url,
    'scope'         => $scope,
    'response_type' => $response_type,
);

$oauth_url = 'https://accounts.spotify.com/authorize?' . http_build_query( $data );
?>

<a href="<?php echo $oauth_url; ?>">Login</a>

单击 link 后,您将返回到重定向 url,您可以在其中从 url 获取授权代码,然后使用 c 继续授权流程url.

<?php if ( isset( $_GET['code'] ) && ! isset( $_SESSION['spotify_access'] ) ) {

    $data = array(
        'redirect_uri' => $redirect_url,
        'grant_type'   => 'authorization_code',
        'code'         => $_GET['code'],
    );
    $ch            = curl_init();
    curl_setopt( $ch, CURLOPT_URL, 'https://accounts.spotify.com/api/token' );
    curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 );
    curl_setopt( $ch, CURLOPT_POST, 1 );
    curl_setopt( $ch, CURLOPT_POSTFIELDS, http_build_query( $data ) );
    curl_setopt( $ch, CURLOPT_HTTPHEADER, array( 'Authorization: Basic ' . base64_encode( $client_id . ':' . $client_secret ) ) );

    $result = json_decode( curl_exec( $ch ) );


    curl_close( $ch );

    if ( isset( $result->access_token ) ) {
        header( 'Location: http://localhost:8888/spotify/getprofile.php?access=' . $result->access_token );
    }
}

最后,您可以获取用户数据:

<?php if ( isset( $_GET['access'] ) ) {
    $ch = curl_init();
    curl_setopt( $ch, CURLOPT_URL, 'https://api.spotify.com/v1/me' );
    curl_setopt( $ch, CURLOPT_HTTPHEADER, array( 'Content-Type:application/json', 'Authorization: Bearer ' . $_GET['access'] ) );
    curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
    $userprofile = json_decode( curl_exec( $ch ) );
    curl_close( $ch );

    echo '<pre>';
    var_dump( $userprofile );
    echo '</pre>';

    if ( $userprofile->id ) {
        $ch = curl_init();
        curl_setopt( $ch, CURLOPT_URL, 'https://api.spotify.com/v1/users/' . $userprofile->id . '/playlists' );
        curl_setopt( $ch, CURLOPT_HTTPGET, 1 );
        curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
        curl_setopt( $ch, CURLOPT_HTTPHEADER, array( 'Authorization: Bearer ' . $_GET['access'] ) );
        $playlists = json_decode( curl_exec( $ch ) );
        curl_close( $ch );
        echo '<pre>';
        var_dump( $playlists );
        echo '</pre>';
    }
}