Google API OAuth 2.0 CURL返回“缺少必需的参数: grant_type”
Google API OAuth 2.0 CURL返回“缺少必需的参数: grant_type”
提问于 2011-11-19 23:12:33
我正在尝试为一个web服务器应用程序实现谷歌的OAuth 2.0身份验证。
我可以从Google ok获取代码，但是当我发回这段代码并尝试获取访问令牌时，它总是给我一个错误“必需的参数缺失: grant_type。错误400”，即使grant_type在那里。
另外，如果我指定content-length为0以外的任何值，它还会抛出其他错误。
下面是执行这个curl post的代码：
$url = 'https://accounts.google.com/o/oauth2/token';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FAILONERROR, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: application/x-www-form-urlencoded',
'Content-length: 0'
));
curl_setopt($ch, CURLOPT_POSTFIELDS, array(
'code='. urlencode($code),
'client_id=' . urlencode($clientID),
'client_secret=' . urlencode($clientSecret),
'redirect_uri=http%3A%2F%2Flocalhost%2Fexperiments%2FnewGALogin.php',
'grant_type=authorization_code'
)); 回答 6
Stack Overflow用户
回答已采纳
发布于 2011-11-20 00:50:02
试一试
curl_setopt($ch, CURLOPT_POSTFIELDS, array(
'code' => $code,
'client_id' => $clientID,
'client_secret' => $clientSecret,
'redirect_uri' => 'http%3A%2F%2Flocalhost%2Fexperiments%2FnewGALogin.php',
'grant_type' => 'authorization_code'
)); 或
curl_setopt($ch, CURLOPT_POSTFIELDS,
'code=' . urlencode($code) . '&' .
'client_id=' . urlencode($clientID) . '&' .
'client_secret=' . urlencode($clientSecret) . '&' .
'redirect_uri=http%3A%2F%2Flocalhost%2Fexperiments%2FnewGALogin.php' . '&' .
'grant_type=authorization_code'
); Stack Overflow用户
发布于 2015-04-10 20:20:46
经过研究这个问题，似乎grant_type在数组格式中不被接受。(是的，查询字符串方法可以工作，但是构建起来很麻烦。)
如果您热衷于将POST字段保留在数组中，那么将http_build_query()添加到数组中是可行的。
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array(
'code' => $code,
'client_id' => $clientID,
'client_secret' => $clientSecret,
'redirect_uri' => 'http%3A%2F%2Flocalhost%2Fexperiments%2FnewGALogin.php',
'grant_type' => 'authorization_code'
))); Stack Overflow用户
发布于 2016-01-05 21:48:58
我试图在这里提供的原始问题和答案中使用PHP代码，并不断收到来自Google token服务器的关于丢失的"grant_type“的投诉，尽管它肯定是被传入的。原来问题出在CURLOPT_HTTPHEADER不喜欢/不需要“Content-length:0”。希望这个完整的工作代码能让其他人避免同样令人头疼的事情。
// This is what Google's OAUTH server sends to you
$code = $_GET['code'];
// These come from your client_secret.json file
$clientID = "your client id.apps.googleusercontent.com";
$clientSecret = "your client secret";
$redirectURI = "your redirect URI";
$token_uri = 'https://accounts.google.com/o/oauth2/token';
$ch = curl_init($token_uri);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FAILONERROR, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: application/x-www-form-urlencoded'
));
// Build the URLEncoded post data
$postFields = http_build_query(array(
'client_secret' => $clientSecret,
'grant_type' => 'authorization_code',
'redirect_uri' => $redirectURI,
'client_id' => $clientID,
'code' => $code
));
curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
$response = curl_exec($ch);
// Save response, especially the "refresh_token"
$pathToAccessToken = "/your/path/to/access_token.json";
file_put_contents($pathToAccessToken, $response);仅供参考，响应JSON如下所示：
{
"access_token" : "xxxWhateverGibberish",
"token_type" : "Bearer",
"expires_in" : 3600,
"refresh_token" : "yyyMoreGibberish"
}之后，我可以使用如下代码成功查询Calendar (我最初的OAuth请求调用的API作用域)：
function getClient() {
$client = new Google_Client();
$client->setApplicationName(APPLICATION_NAME);
$client->setScopes(SCOPES);
$client->setAuthConfigFile(CLIENT_SECRET_PATH);
$client->setAccessType('offline');
// Load previously authorized credentials from a file.
$pathToAccessToken = "/your/path/to/access_token.json";
$accessToken = file_get_contents($pathToAccessToken);
$client->setAccessToken($accessToken);
// Refresh the token if it's expired.
if ($client->isAccessTokenExpired()) {
$client->refreshToken($client->getRefreshToken());
file_put_contents($pathToAccessToken, $client->getAccessToken());
}
return $client;
}
$client = getClient();
$service = new Google_Service_Calendar($client);
// Print the next 10 events on the user's calendar.
$calendarId = 'primary';
$optParams = array(
'maxResults' => 10,
'orderBy' => 'startTime',
'singleEvents' => TRUE,
'timeMin' => date('c'),
);
$results = $service->events->listEvents($calendarId, $optParams);
if (count($results->getItems()) == 0) {
print "No upcoming events found.\n";
} else {
print "Upcoming events:\n";
foreach ($results->getItems() as $event) {
$start = $event->start->dateTime;
if (empty($start)) {
$start = $event->start->date;
}
printf("%s (%s)\n", $event->getSummary(), $start);
}
} 页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/8198072
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