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