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MDL-37984 portfolio: Google drive using official client library

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This commit is contained in:
Martin Mastny
2015-03-25 12:40:40 +08:00
parent 3ea79917c9
commit 08d18b09c1
1 changed files with 91 additions and 17 deletions
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portfolio/googledocs/lib.php
+91 -17
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@@ -21,10 +21,32 @@
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
*/
require_once($CFG->libdir.'/portfolio/plugin.php');
require_once($CFG->libdir.'/googleapi.php');
require_once($CFG->libdir . '/google/lib.php');
require_once($CFG->libdir . '/google/Google/Service/Drive.php');
class portfolio_plugin_googledocs extends portfolio_plugin_push_base {
private $googleoauth = null;
/**
* Google Client.
* @var Google_Client
*/
private $client = null;
/**
* Google Drive Service.
* @var Google_Service_Drive
*/
private $service = null;
/**
* URL to redirect Google to.
* @var string
*/
const REDIRECTURL = '/admin/oauth2callback.php';
/**
* Key in session which stores token (_drive_file is access level).
* @var string
*/
const SESSIONKEY = 'googledrive_accesstoken_drive_file';
public function supported_formats() {
return array(PORTFOLIO_FORMAT_FILE, PORTFOLIO_FORMAT_RICHHTML);
@@ -40,7 +62,7 @@ class portfolio_plugin_googledocs extends portfolio_plugin_push_base {
}
public function get_interactive_continue_url() {
return 'http://docs.google.com/';
return 'http://drive.google.com/';
}
public function expected_time($callertime) {
@@ -50,16 +72,50 @@ class portfolio_plugin_googledocs extends portfolio_plugin_push_base {
}
public function send_package() {
if (!$this->googleoauth) {
if (!$this->client) {
throw new portfolio_plugin_exception('noauthtoken', 'portfolio_googledocs');
}
$gdocs = new google_docs($this->googleoauth);
foreach ($this->exporter->get_tempfiles() as $file) {
if (!$gdocs->send_file($file)) {
try {
// Create drivefile object and fill it with data.
$drivefile = new Google_Service_Drive_DriveFile();
$drivefile->setTitle($file->get_filename());
$drivefile->setMimeType($file->get_mimetype());
$filecontent = $file->get_content();
$createdfile = $this->service->files->insert($drivefile,
array('data' => $filecontent,
'mimeType' => $file->get_mimetype(),
'uploadType' => 'multipart'));
} catch ( Exception $e ) {
throw new portfolio_plugin_exception('sendfailed', 'portfolio_gdocs', $file->get_filename());
}
}
return true;
}
/**
* Gets the access token from session and sets it to client.
*
* @return null|string null or token.
*/
private function get_access_token() {
global $SESSION;
if (isset($SESSION->{self::SESSIONKEY}) && $SESSION->{self::SESSIONKEY}) {
$this->client->setAccessToken($SESSION->{self::SESSIONKEY});
return $SESSION->{self::SESSIONKEY};
}
return null;
}
/**
* Sets the access token to session
*
* @param string $token access token in json format
* @return
*/
private function set_access_token($token) {
global $SESSION;
$SESSION->{self::SESSIONKEY} = $token;
}
public function steal_control($stage) {
@@ -69,23 +125,30 @@ class portfolio_plugin_googledocs extends portfolio_plugin_push_base {
}
$this->initialize_oauth();
if ($this->googleoauth->is_logged_in()) {
return false;
} else {
return $this->googleoauth->get_login_url();
if ($this->get_access_token()) {
// Ensure that token is not expired.
if (!$this->client->isAccessTokenExpired()) {
return false;
}
}
return $this->client->createAuthUrl();
}
public function post_control($stage, $params) {
if ($stage != PORTFOLIO_STAGE_CONFIG) {
return;
}
$this->initialize_oauth();
if ($this->googleoauth->is_logged_in()) {
return false;
// Get the authentication code send by Google.
$code = isset($params['oauth2code']) ? $params['oauth2code'] : null;
// Try to authenticate (throws exception which is catched higher).
$this->client->authenticate($code);
// Make sure we accually have access token at this time
// ...and store it for further use.
if ($accesstoken = $this->client->getAccessToken()) {
$this->set_access_token($accesstoken);
} else {
return $this->googleoauth->get_login_url();
throw new portfolio_plugin_exception('nosessiontoken', 'portfolio_gdocs');
}
}
@@ -104,7 +167,7 @@ class portfolio_plugin_googledocs extends portfolio_plugin_push_base {
public static function admin_config_form(&$mform) {
$a = new stdClass;
$a->docsurl = get_docs_url('Google_OAuth_2.0_setup');
$a->callbackurl = google_oauth::callback_url()->out(false);
$a->callbackurl = (new moodle_url(self::REDIRECTURL))->out(false);
$mform->addElement('static', null, '', get_string('oauthinfo', 'portfolio_googledocs', $a));
@@ -119,6 +182,7 @@ class portfolio_plugin_googledocs extends portfolio_plugin_push_base {
}
private function initialize_oauth() {
$redirecturi = new moodle_url(self::REDIRECTURL);
$returnurl = new moodle_url('/portfolio/add.php');
$returnurl->param('postcontrol', 1);
$returnurl->param('id', $this->exporter->get('id'));
@@ -127,7 +191,17 @@ class portfolio_plugin_googledocs extends portfolio_plugin_push_base {
$clientid = $this->get_config('clientid');
$secret = $this->get_config('secret');
$this->googleoauth = new google_oauth($clientid, $secret, $returnurl, google_docs::REALM);
// Setup Google client.
$this->client = get_google_client();
$this->client->setClientId($clientid);
$this->client->setClientSecret($secret);
$this->client->setScopes(array(Google_Service_Drive::DRIVE_FILE));
$this->client->setRedirectUri($redirecturi->out(false));
// URL to be called when redirecting from authentication.
$this->client->setState($returnurl->out_as_local_url(false));
// Setup drive upload service.
$this->service = new Google_Service_Drive($this->client);
}
public function instance_sanity_check() {