I'm trying to use AuthSub to get access to Google Calendar feeds from a
hosted domain.
I need to use Perl to accomplish this. I have registered my
domain/application with Google and am getting intial AuthSub tokens fine. I
am able to exchange those initial tokens for session tokens fine as well.
But when I try to get Calendar feeds, it says the token is invalid. When I
test this session token with AuthSubTokenInfo, it also tells me the token is
invalid.
I am not trying to use secure tokens yet.
Can someone point out if I'm doing something obviously wrong?
Here's my initial link to get AuthSub token:
my $googleNextUrl = uri_escape('https://www.my-website.edu/');
my $googleScopeUrl = uri_escape('https://www.google.com/calendar/feeds');
my $googleAuthSubUrl =
'https://www.google.com/accounts/AuthSubRequest?next=' . $googleNextUrl .
'&scope=' . $googleScopeUrl . '&session=1&hd=mydomain.edu';
Then I exchange that token for a AuthSub session token:
my $url = 'https://www.google.com/accounts/AuthSubSessionToken';
my $ua = LWP::UserAgent->new();
$ua->agent('My Website');
my $req = HTTP::Request->new(
'GET',
"$url",
[
'Authorization' => 'AuthSub token="' . $token . '"',
],
);
my $response = $ua->request($req);
if ($response && $response->is_success) {
return $response;
}
Then I parse the response from AuthSubSessionToken:
my $sessionToken = substr($response, index($response, '=') + 1);
Then I try sending the session token to either AuthSubTokenInfo, or
https://www.google.com/calendar/feeds/default/private/full
my $url = 'https://www.google.com/calendar/feeds/default/private/full';
my $ua = LWP::UserAgent->new();
$ua->agent('My Website');
my $req = HTTP::Request->new(
'GET',
"$url",
[
'Authorization' => 'AuthSub token="' . $token . '"',
],
);
my $response = $ua->request($req);
if ($response && $response->is_success) {
return $response->content;
}
So if I output when I'm getting it looks like this:
AuthSub Token: 1/jtxZsBCbbNAgR_dIbakVoyUcpM6TdS_f0nmxiptBUU4
Google AuthSubSession Response: 200 OK :
Token=1/uWAXg--XraXBjK3uNnWwoZVCUviXTLxoiORCV67-bBQ
Session Token: 1/uWAXg--XraXBjK3uNnWwoZVCUviXTLxoiORCV67-bBQ
AuthSubTokenInfo Response: 403 Invalid AuthSub token.
I'm not sure if there's a way to get more info from Google's error response,
or if I need to be using secure tokens to use a hosted domain. The docs
indicate you don't have to use secure tokens necessarily.
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