未授权401 Oauth 2.0谷歌

Question

使用Oauth 2.0在gmail中阅读收件箱时遇到问题。我使用此作为我的范围：https://mail.google.com/mail/feed/atom/

这是我的非工作代码

$fields=array(
    'code'=>  urlencode($authcode),
    'client_id'=>  urlencode($clientid),
    'client_secret'=>  urlencode($clientsecret),
    'redirect_uri'=>  urlencode($redirecturi),
    'grant_type'=>  urlencode('authorization_code')
);
$fields_string='';
foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&'; }
$fields_string=rtrim($fields_string,'&');
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,'https://accounts.google.com/o/oauth2/token');
curl_setopt($ch,CURLOPT_POST,5);
curl_setopt($ch,CURLOPT_POSTFIELDS,$fields_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$result = curl_exec($ch);
curl_close($ch);
$response=  json_decode($result);
$accesstoken= $response->access_token;
$xmlresponse= file_get_contents('https://mail.google.com/mail/feed/atom/?oauth_token='.$accesstoken);

我甚至得到了我的访问令牌，但仍然没有运气，得到了一个未经授权的401错误。

Answer 1

https://mail.google.com/mail/feed/atom/不是一个作用域，它是可以从中获取提要的服务器端点。请参阅文档。以下是Vb.net 中的工作代码

objClient.Credentials = New System.Net.NetworkCredential(username, password)
Dim nodelist As XmlNodeList
Dim node As XmlNode
Dim response As String
Dim xmlDoc As New XmlDocument
'get emails from gmail
response = Encoding.UTF8.GetString(objClient.DownloadData("https://mail.google.com/mail/feed/atom"))
response = response.Replace("<feed version=""0.3"" xmlns=""http://purl.org/atom/ns#"">", "<feed>")
'Get the number of unread emails
xmlDoc.LoadXml(response)
node = xmlDoc.SelectSingleNode("/feed/fullcount")
mailCount = node.InnerText
nodelist = xmlDoc.SelectNodes("/feed/entry")
node = xmlDoc.SelectSingleNode("title")

使用PHP和客户端登录

<?php
    $mailbox = imap_open("{imap.googlemail.com:993/ssl}INBOX", "[e-mail]", "PASSWORD");
    $mail = imap_search($mailbox, "ALL");
    $mail_headers = imap_headerinfo($mailbox, $mail[0]);
    $subject = $mail_headers->subject;
    $from = $mail_headers->fromaddress;
    imap_setflag_full($mailbox, $mail[0], "\Seen \Flagged");
    imap_close($mailbox);
?>

我不知道如何使用OAuth2.0做到这一点，甚至不知道是否可以使用OAuth 2.0获得提要。