我尝试使用https://developers.google.com/identity/sign-in/web/server-side-flow中列出的授权流程。 我已按照指示创建了凭据...没有指定授权重定向URI,因为doc指示:"授权重定向URI字段不需要值。重定向URI不与JavaScript API一起使用。"
启动授权的代码是: 客户端按钮和回调:
<script>
$('#signinButton').click(function() {
var auth2 = gapi.auth2.getAuthInstance();
auth2.grantOfflineAccess().then(signInCallback);
});
function signInCallback(authResult) {
console.log('sending to server');
if (authResult['code']) {
// Send the code to the server
$.ajax({
type: 'POST',
url: 'CheckAuth',
headers: {
'X-Requested-With': 'XMLHttpRequest'
},
contentType: 'application/octet-stream; charset=utf-8',
success: function(result) {
// Handle or verify the server response.
},
processData: false,
data: authResult['code']
});
} else {
// There was an error.
}
}
</script>
服务器端(CheckAuth方法从auth代码创建凭据,它通过javascript回调正确接收):
private Credential authorize() throws Exception {
// load client secrets
InputStream is = new FileInputStream(clientSecretsPath_);
InputStreamReader isr = new InputStreamReader(is);
GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, isr);
String redirect_URI = "";
GoogleTokenResponse tokenResponse =
new GoogleAuthorizationCodeTokenRequest(
httpTransport, JSON_FACTORY,
"https://www.googleapis.com/oauth2/v4/token",
clientSecrets.getDetails().getClientId(),
clientSecrets.getDetails().getClientSecret(),
token_,
redirect_URI)
.execute();
String accessToken = tokenResponse.getAccessToken();
// Use access token to call API
GoogleCredential credential = new GoogleCredential().setAccessToken(accessToken);
return credential;
}
流程正常工作,直到我的服务器尝试交换令牌响应的授权代码(GoogleAuthorizationCodeTokenRequest.execute())...... auth服务器返回:
400 Bad Request
{
"error" : "invalid_request",
"error_description" : "Missing parameter: redirect_uri"
}
鉴于错误,我在javascript中查看了auth实例的调试,并注意到它指示的是redirect_uri。然后,我更新了我的Google凭据,并在授权重定向URI中指定了该URI(它是访问javascript的URL,因为auth服务器正确返回到指定的javascript回调)。使用更新的凭据和在GoogleAuthorizationCodeTokenRequest(String redirect_URI =&#34; http://example.com:8080/JavascriptLocation&#34;;)的实例化中指定的URI,然后错误变为:
400 Bad Request
{
"error" : "redirect_uri_mismatch",
"error_description" : "Bad Request"
}
我已经一直跟踪到auth服务器的实际HttpRequest(www.googleapis.com/oauth2/v4/token),并且无法分辨它正在查找的是哪个redirect_uri。
有没有人知道redirect_uri在这种情况下应该是什么价值(使用grantOfflineAccess()时)?我很乐意发布更多的代码,如果这些有用的话......只是没有想要充斥页面。谢谢。
答案 0 :(得分:12)
找到&#34; postmessage&#34;在发布问题之后......使用它作为服务器端的redirect_URI似乎从auth服务器生成成功的响应。所以...设置redirect_URI =&#34; postmessage&#34;在下面的代码中似乎适用于这种情况。
GoogleTokenResponse tokenResponse =
new GoogleAuthorizationCodeTokenRequest(
httpTransport, JSON_FACTORY,
"https://www.googleapis.com/oauth2/v4/token",
clientSecrets.getDetails().getClientId(),
clientSecrets.getDetails().getClientSecret(),
token_,
redirect_URI)
.execute();