Google PHP客户端不会验证代码，invalid_request

Question

I'm using Google PHP Client 4ae272683e18888362e1f935b813e345b99e23b8 pulled Aug 9 from github. I feel like my code is too simple to be wrong.

require_once ('Google/Client.php');
$client = new Google_Client();
$client->setAuthConfigFile('client_secret.json');
$client->authenticate($_POST['code']);

I get this invalid_request error:

Uncaught exception 'Google_Auth_Exception' with message 'Error fetching OAuth2 access token, message: 'invalid_request'' in /Users/dfabulich/test/Google/Auth/OAuth2.php:125
Stack trace:
#0 /Users/dfabulich/test/Google/Client.php(135): Google_Auth_OAuth2->authenticate('4/58wTCTNiQNIdR...')
#1 /Users/dfabulich/test/google-login.php(24): Google_Client->authenticate('4/58wTCTNiQNIdR...')
#2 {main}

client_secret.json is the exact file I downloaded from the Google API Developers Console. The file definitely exists, because if I use the wrong file name, I get a very clear error, "Invalid client secret JSON file." I've visually inspected the file and it looks fine.

I edited Google/Auth/OAuth2.php to log the post body as json; it looks like this (but I've HIDDEN the client secret below):

{"code":"4\/58wTCTNiQNIdRfb8DgQBYk518URV.Elrb71kFKHAYEnp6UAPFm0HWWGd6jwI","grant_type":"authorization_code","redirect_uri":"","client_id":"807284957448-3katmu7oqd1277ql9eo258dadkbkqruq.apps.googleusercontent.com","client_secret":"HIDDEN"}

What could I possibly be doing wrong?!

Answer 1

I was using the Google+ Sign-in API, so I also needed to add a setRedirectUri("postmessage") line. This code works.

require_once ('Google/Client.php');
$client = new Google_Client();
$client->setRedirectUri('postmessage');
$client->setAuthConfigFile('client_secret.json');
$client->authenticate($_POST['code']);