Google API Get inbox emails using access_token? - php

Question

I am able to get access_token for multiple permissions like emails, contacts, docs, etc. using oAuth 2.0. I have access_token
I got contacts using the following code.
$url = 'https://www.google.com/m8/feeds/contacts/default/full?max- results='.$max_results.'&oauth_token='.$access_token;
$response_contacts= curl_get_file_contents($url);
Now i want to get users Emails using this access_token.
i used this url . but it gives 401 unauthorized Error
$url = 'https://mail.google.com/mail/feed/atom&oauth_token='.$access_token;
$response_emails= curl_get_file_contents($url);
please guide me how can i get emails using access_token.

Answer 1

I've seen references to the Gmail feed using oauth_token as a request parameter. However, once I used the OAuth Playground I discovered that you need to pass your OAuth information as an Authorization header, as you'll see below.
<?php
$now = time();
$consumer = ...; // your own value here
$secret = ...; // your own value here
$nonce = ...; // same value you've been using
$algo = "sha1";
$sigmeth = "HMAC-SHA1";
$av = "1.0";
$scope = "https://mail.google.com/mail/feed/atom";
$path = $scope;
$auth = ...; // an object containing outputs of OAuthGetAccessToken
$args = "oauth_consumer_key=" . urlencode($consumer) .
"&oauth_nonce=" . urlencode($nonce) .
"&oauth_signature_method=" . urlencode($sigmeth) .
"&oauth_timestamp=" . urlencode($now) .
"&oauth_token=" . urlencode($auth->oauth_token) .
"&oauth_version=" . urlencode($av);
$base = "GET&" . urlencode($path) . "&" . urlencode($args);
$sig = base64_encode(hash_hmac($algo, $base,
"{$secret}&{$auth->oauth_token_secret}", true));
$url = $path . "?oauth_signature=" . urlencode($sig) . "&" . $args;
// Create a stream
$opts = array(
"http" => array(
"method" => "GET",
"header" => "Authorization: OAuth " .
"oauth_version=\"{$av}\", " .
"oauth_nonce=\"{$nonce}\", " .
"oauth_timestamp=\"{$now}\", " .
"oauth_consumer_key=\"{$consumer}\", " .
"oauth_token=\"{$auth->oauth_token}\", " .
"oauth_signature_method=\"{$sigmeth}\", " .
"oauth_signature=\"{$sig}\"\r\n"
)
);
$context = stream_context_create($opts);
$out = file_get_contents($path, false, $context);
?>