function setAvatar($user)
{
$picUrl = sprintf('http://graph.facebook.com/%s/picture?type=large', $this->fbuid);
// fetch the picture from Facebook
$client = new HTTPClient();
// fetch the actual picture
$response = $client->get($picUrl);
if ($response->isOk()) {
$finalUrl = $client->getUrl();
// Make sure the filename is unique becuase it's possible for a user
// to deauthorize our app, and then come back in as a new user but
// have the same Facebook picture (avatar URLs have a unique index
// and their URLs are based on the filenames).
$filename = 'facebook-' . common_good_rand(4) . '-' . substr(strrchr($finalUrl, '/'), 1);
$ok = file_put_contents(Avatar::path($filename), $response->getBody());
if (!$ok) {
common_log(LOG_WARNING, sprintf('Couldn\'t save Facebook avatar %s', $tmp), __FILE__);
} else {
// save it as an avatar
$profile = $user->getProfile();
if ($profile->setOriginal($filename)) {
common_log(LOG_INFO, sprintf('Saved avatar for %s (%d) from Facebook picture for ' . '%s (fbuid %d), filename = %s', $user->nickname, $user->id, $this->fbuser['name'], $this->fbuid, $filename), __FILE__);
}
}
}
}