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|
<?php
namespace dokuwiki\Action;
use dokuwiki\Action\Exception\ActionAbort;
use dokuwiki\Action\Exception\ActionDisabledException;
use dokuwiki\Subscriptions\SubscriberManager;
use dokuwiki\Extension\Event;
use dokuwiki\Ui;
use Exception;
/**
* Class Subscribe
*
* E-Mail subscription handling
*
* @package dokuwiki\Action
*/
class Subscribe extends AbstractUserAction
{
/** @inheritdoc */
public function minimumPermission()
{
return AUTH_READ;
}
/** @inheritdoc */
public function checkPreconditions()
{
parent::checkPreconditions();
global $conf;
if(isset($conf['subscribers']) && !$conf['subscribers']) throw new ActionDisabledException();
}
/** @inheritdoc */
public function preProcess()
{
try {
$this->handleSubscribeData();
} catch (ActionAbort $e) {
throw $e;
} catch (Exception $e) {
msg($e->getMessage(), -1);
}
}
/** @inheritdoc */
public function tplContent()
{
(new Ui\Subscribe)->show();
}
/**
* Handle page 'subscribe'
*
* @author Adrian Lang <lang@cosmocode.de>
* @throws Exception if (un)subscribing fails
* @throws ActionAbort when (un)subscribing worked
*/
protected function handleSubscribeData()
{
global $lang;
global $INFO;
global $INPUT;
// get and preprocess data.
$params = array();
foreach (array('target', 'style', 'action') as $param) {
if ($INPUT->has("sub_$param")) {
$params[$param] = $INPUT->str("sub_$param");
}
}
// any action given? if not just return and show the subscription page
if (empty($params['action']) || !checkSecurityToken()) return;
// Handle POST data, may throw exception.
Event::createAndTrigger('ACTION_HANDLE_SUBSCRIBE', $params, array($this, 'handlePostData'));
$target = $params['target'];
$style = $params['style'];
$action = $params['action'];
// Perform action.
$subManager = new SubscriberManager();
if ($action === 'unsubscribe') {
$ok = $subManager->remove($target, $INPUT->server->str('REMOTE_USER'), $style);
} else {
$ok = $subManager->add($target, $INPUT->server->str('REMOTE_USER'), $style);
}
if ($ok) {
msg(
sprintf(
$lang["subscr_{$action}_success"], hsc($INFO['userinfo']['name']),
prettyprint_id($target)
), 1
);
throw new ActionAbort('redirect');
}
throw new Exception(
sprintf(
$lang["subscr_{$action}_error"],
hsc($INFO['userinfo']['name']),
prettyprint_id($target)
)
);
}
/**
* Validate POST data
*
* Validates POST data for a subscribe or unsubscribe request. This is the
* default action for the event ACTION_HANDLE_SUBSCRIBE.
*
* @author Adrian Lang <lang@cosmocode.de>
*
* @param array &$params the parameters: target, style and action
* @throws Exception
*/
public function handlePostData(&$params)
{
global $INFO;
global $lang;
global $INPUT;
// Get and validate parameters.
if (!isset($params['target'])) {
throw new Exception('no subscription target given');
}
$target = $params['target'];
$valid_styles = array('every', 'digest');
if (substr($target, -1, 1) === ':') {
// Allow “list” subscribe style since the target is a namespace.
$valid_styles[] = 'list';
}
$style = valid_input_set(
'style', $valid_styles, $params,
'invalid subscription style given'
);
$action = valid_input_set(
'action', array('subscribe', 'unsubscribe'),
$params, 'invalid subscription action given'
);
// Check other conditions.
if ($action === 'subscribe') {
if ($INFO['userinfo']['mail'] === '') {
throw new Exception($lang['subscr_subscribe_noaddress']);
}
} elseif ($action === 'unsubscribe') {
$is = false;
foreach ($INFO['subscribed'] as $subscr) {
if ($subscr['target'] === $target) {
$is = true;
}
}
if ($is === false) {
throw new Exception(
sprintf(
$lang['subscr_not_subscribed'],
$INPUT->server->str('REMOTE_USER'),
prettyprint_id($target)
)
);
}
// subscription_set deletes a subscription if style = null.
$style = null;
}
$params = compact('target', 'style', 'action');
}
}
|
