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- Check for read-only vs. read-write access to protected API resources (OAuth)

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- Some cleanup
This commit is contained in:
Zach Copley 2010-01-27 08:41:26 +00:00
parent 4202ffff91
commit 923b7de3c6
2 changed files with 75 additions and 69 deletions
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18
actions/apistatusesupdate.php
View File

@ -28,7 +28,7 @@
* @author Mike Cochrane <mikec@mikenz.geek.nz>
* @author Robin Millette <robin@millette.info>
* @author Zach Copley <zach@status.net>
* @copyright 2009 StatusNet, Inc.
* @copyright 2009-2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
@ -79,7 +79,6 @@ class ApiStatusesUpdateAction extends ApiAuthAction
{
parent::prepare($args);
$this->user = $this->auth_user;
$this->status = $this->trimmed('status');
$this->source = $this->trimmed('source');
$this->lat = $this->trimmed('lat');
@ -145,7 +144,7 @@ class ApiStatusesUpdateAction extends ApiAuthAction
return;
}
if (empty($this->user)) {
if (empty($this->auth_user)) {
$this->clientError(_('No such user.'), 404, $this->format);
return;
}
@ -172,7 +171,7 @@ class ApiStatusesUpdateAction extends ApiAuthAction
// Check for commands
$inter = new CommandInterpreter();
$cmd = $inter->handle_command($this->user, $status_shortened);
$cmd = $inter->handle_command($this->auth_user, $status_shortened);
if ($cmd) {
@ -184,7 +183,7 @@ class ApiStatusesUpdateAction extends ApiAuthAction
// And, it returns your last status whether the cmd was successful
// or not!
$this->notice = $this->user->getCurrentNotice();
$this->notice = $this->auth_user->getCurrentNotice();
} else {
@ -211,7 +210,7 @@ class ApiStatusesUpdateAction extends ApiAuthAction
$upload = null;
try {
$upload = MediaFile::fromUpload('media', $this->user);
$upload = MediaFile::fromUpload('media', $this->auth_user);
} catch (ClientException $ce) {
$this->clientError($ce->getMessage());
return;
@ -234,19 +233,19 @@ class ApiStatusesUpdateAction extends ApiAuthAction
$options = array('reply_to' => $reply_to);
if ($this->user->shareLocation()) {
if ($this->auth_user->shareLocation()) {
$locOptions = Notice::locationOptions($this->lat,
$this->lon,
null,
null,
$this->user->getProfile());
$this->auth_user->getProfile());
$options = array_merge($options, $locOptions);
}
$this->notice =
Notice::saveNew($this->user->id,
Notice::saveNew($this->auth_user->id,
$content,
$this->source,
$options);
@ -255,7 +254,6 @@ class ApiStatusesUpdateAction extends ApiAuthAction
$upload->attachToNotice($this->notice);
}
}
$this->showNotice();

126
lib/apiauth.php
View File

@ -29,7 +29,7 @@
* @author mEDI <medi@milaro.net>
* @author Sarven Capadisli <csarven@status.net>
* @author Zach Copley <zach@status.net>
* @copyright 2009 StatusNet, Inc.
* @copyright 2009-2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
@ -53,9 +53,11 @@ require_once INSTALLDIR . '/lib/apioauth.php';
class ApiAuthAction extends ApiAction
{
var $access_token;
var $oauth_access_type;
var $oauth_source;
var $auth_user_nickname = null;
var $auth_user_password = null;
var $access_token = null;
var $oauth_source = null;
var $auth_user = null;
/**
* Take arguments for running, and output basic auth header if needed
@ -70,18 +72,28 @@ class ApiAuthAction extends ApiAction
{
parent::prepare($args);
$this->consumer_key = $this->arg('oauth_consumer_key');
$this->access_token = $this->arg('oauth_token');
// NOTE: $this->auth_user has to get set in prepare(), not handle(),
// because subclasses do stuff with it in their prepares.
if ($this->requiresAuth()) {
$this->consumer_key = $this->arg('oauth_consumer_key');
$this->access_token = $this->arg('oauth_token');
if (!empty($this->access_token)) {
$this->checkOAuthRequest();
} else {
$this->checkBasicAuthUser();
// By default, all basic auth users have read and write access
}
$this->access = self::READ_WRITE;
// Reject API calls with the wrong access level
if ($this->isReadOnly($args) == false) {
if ($this->access != self::READ_WRITE) {
$msg = 'API resource requires read-write access, ' .
'but you only have read access.';
$this->clientError($msg, 401, $this->format);
exit();
}
}
}
@ -95,8 +107,6 @@ class ApiAuthAction extends ApiAction
function checkOAuthRequest()
{
common_debug("We have an OAuth request.");
$datastore = new ApiStatusNetOAuthDataStore();
$server = new OAuthServer($datastore);
$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
@ -114,9 +124,10 @@ class ApiAuthAction extends ApiAction
if (empty($app)) {
// this should really not happen
common_log(LOG_WARN,
"Couldn't find the OAuth app for consumer key: $this->consumer_key");
// this should probably not happen
common_log(LOG_WARNING,
'Couldn\'t find the OAuth app for consumer key: ' .
$this->consumer_key);
throw new OAuthException('No application for that consumer key.');
}
@ -128,20 +139,18 @@ class ApiAuthAction extends ApiAction
$appUser = Oauth_application_user::staticGet('token',
$this->access_token);
// XXX: check that app->id and appUser->application_id and consumer all
// XXX: Check that app->id and appUser->application_id and consumer all
// match?
if (!empty($appUser)) {
// read or read-write
$this->oauth_access_type = $appUser->access_type;
// If access_type == 0 we have either a request token
// or a bad / revoked access token
if ($this->oauth_access_type != 0) {
if ($appUser->access_type != 0) {
// Set the access level for the api call
// Set the read or read-write access for the api call
$this->access = ($appUser->access_type & Oauth_application::$writeAccess)
? self::READ_WRITE : self::READ_ONLY;
@ -151,38 +160,34 @@ class ApiAuthAction extends ApiAction
}
$msg = "API OAuth authentication for user '%s' (id: %d) on behalf of " .
"application '%s' (id: %d).";
"application '%s' (id: %d) with %s access.";
common_log(LOG_INFO, sprintf($msg,
$this->auth_user->nickname,
$this->auth_user->id,
$app->name,
$app->id));
$app->id,
($this->access = self::READ_WRITE) ?
'read-write' : 'read-only'
));
return true;
} else {
throw new OAuthException('Bad access token.');
}
} else {
// also should not happen
// Also should not happen
throw new OAuthException('No user for that token.');
}
}
} catch (OAuthException $e) {
common_log(LOG_WARN, 'API OAuthException - ' . $e->getMessage());
common_debug(var_export($req, true));
$this->showOAuthError($e->getMessage());
exit();
common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
$this->showAuthError();
exit;
}
}
function showOAuthError($msg)
{
header('HTTP/1.1 401 Unauthorized');
header('Content-Type: text/html; charset=utf-8');
print $msg . "\n";
}
/**
* Does this API resource require authentication?
*
@ -207,39 +212,44 @@ class ApiAuthAction extends ApiAction
$realm = common_config('site', 'name') . ' API';
if (!isset($this->auth_user)) {
if (!isset($this->auth_user_nickname)) {
header('WWW-Authenticate: Basic realm="' . $realm . '"');
// show error if the user clicks 'cancel'
$this->showBasicAuthError();
$this->showAuthError();
exit;
} else {
$nickname = $this->auth_user;
$password = $this->auth_pw;
$user = common_check_user($nickname, $password);
$user = common_check_user($this->auth_user_nickname,
$this->auth_user_password);
if (Event::handle('StartSetApiUser', array(&$user))) {
$this->auth_user = $user;
Event::handle('EndSetApiUser', array($user));
}
// By default, basic auth users have rw access
$this->access = self::READ_WRITE;
if (empty($this->auth_user)) {
// basic authentication failed
list($proxy, $ip) = common_client_ip();
common_log(
LOG_WARNING,
'Failed API auth attempt, nickname = ' .
"$nickname, proxy = $proxy, ip = $ip."
);
$this->showBasicAuthError();
$this->showAuthError();
exit;
}
}
return true;
}
/**
@ -253,32 +263,30 @@ class ApiAuthAction extends ApiAction
{
if (isset($_SERVER['AUTHORIZATION'])
|| isset($_SERVER['HTTP_AUTHORIZATION'])
) {
$authorization_header = isset($_SERVER['HTTP_AUTHORIZATION'])
? $_SERVER['HTTP_AUTHORIZATION'] : $_SERVER['AUTHORIZATION'];
) {
$authorization_header = isset($_SERVER['HTTP_AUTHORIZATION'])
? $_SERVER['HTTP_AUTHORIZATION'] : $_SERVER['AUTHORIZATION'];
}
if (isset($_SERVER['PHP_AUTH_USER'])) {
$this->auth_user = $_SERVER['PHP_AUTH_USER'];
$this->auth_pw = $_SERVER['PHP_AUTH_PW'];
$this->auth_user_nickname = $_SERVER['PHP_AUTH_USER'];
$this->auth_user_password = $_SERVER['PHP_AUTH_PW'];
} elseif (isset($authorization_header)
&& strstr(substr($authorization_header, 0, 5), 'Basic')) {
// decode the HTTP_AUTHORIZATION header on php-cgi server self
// Decode the HTTP_AUTHORIZATION header on php-cgi server self
// on fcgid server the header name is AUTHORIZATION
$auth_hash = base64_decode(substr($authorization_header, 6));
list($this->auth_user, $this->auth_pw) = explode(':', $auth_hash);
list($this->auth_user_nickname,
$this->auth_user_password) = explode(':', $auth_hash);
// set all to null on a empty basic auth request
// Set all to null on a empty basic auth request
if ($this->auth_user == "") {
$this->auth_user = null;
$this->auth_pw = null;
if (empty($this->auth_user_nickname)) {
$this->auth_user_nickname = null;
$this->auth_password = null;
}
} else {
$this->auth_user = null;
$this->auth_pw = null;
}
}
@ -289,7 +297,7 @@ class ApiAuthAction extends ApiAction
* @return void
*/
function showBasicAuthError()
function showAuthError()
{
header('HTTP/1.1 401 Unauthorized');
$msg = 'Could not authenticate you.';