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<?php
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/**
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* @file Rules engine module
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*/
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// Include our hook implementations early, as they can be called even before
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// hook_init().
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require_once dirname(__FILE__) . '/modules/events.inc';
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/**
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* Implements hook_init().
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*/
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function rules_init() {
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// Enable event invocation once hook_init() was invoked for Rules.
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rules_event_invocation_enabled(TRUE);
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rules_invoke_event('init');
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}
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/**
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* Returns an instance of the rules UI controller, which eases re-using the Rules UI.
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*
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* See the rules_admin.module for example usage.
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*
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* @return RulesUIController
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*/
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function rules_ui() {
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$static = drupal_static(__FUNCTION__);
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if (!isset($static)) {
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$static = new RulesUIController();
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}
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return $static;
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}
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/**
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* Returns a new rules action.
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*
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* @param $name
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* The action's name.
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* @param $settings
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* The action's settings array.
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* @return RulesAction
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*/
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function rules_action($name, $settings = array()) {
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return rules_plugin_factory('action', $name, $settings);
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}
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/**
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* Returns a new rules condition.
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*
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* @param $name
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* The condition's name.
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* @param $settings
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* The condition's settings array.
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* @return RulesCondition
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*/
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function rules_condition($name, $settings = array()) {
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return rules_plugin_factory('condition', $name, $settings);
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}
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/**
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* Creates a new rule.
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*
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* @param $variables
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* The array of variables to setup in the evaluation state, making them
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* available for the configuraion elements. Values for the variables need to
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* be passed as argument when the rule is executed. Only Rule instances with
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* no variables can be embedded in other configurations, e.g. rule sets.
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* The array has to be keyed by variable name and contain a sub-array for each
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* variable that has the same structure as the arrays used for describing
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* parameters of an action, see hook_rules_action_info(). However, in addition
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* to that the following keys are supported:
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* - parameter: (optional) If set to FALSE, no parameter for the variable
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* is created - thus no argument needs to be passed to the rule for the
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* variable upon execution. As a consequence no value will be set
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* initially, but the "Set data value" action may be used to do so. This is
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* in particular useful for defining variables which can be provided to the
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* caller (see $provides argument) but need not be passed in as parameter.
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* @param $provides
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* The names of variables which should be provided to the caller. Only
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* variables contained in $variables may be specified.
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* @return Rule
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*/
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function rule($variables = NULL, $provides = array()) {
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return rules_plugin_factory('rule', $variables, $provides);
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}
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/**
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* Creates a new reaction rule.
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*
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* @return RulesReactionRule
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*/
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function rules_reaction_rule() {
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return rules_plugin_factory('reaction rule');
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}
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/**
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* Creates a logical OR condition container.
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*
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* @param $variables
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* An optional array as for rule().
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* @return RulesOr
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*/
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function rules_or($variables = NULL) {
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return rules_plugin_factory('or', $variables);
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}
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/**
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* Creates a logical AND condition container.
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*
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* @param $variables
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* An optional array as for rule().
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* @return RulesAnd
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*/
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function rules_and($variables = NULL) {
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return rules_plugin_factory('and', $variables);
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}
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/**
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* Creates a loop.
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*
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* @param $settings
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* The loop settings, containing
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* 'list:select': The data selector for the list to loop over.
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* 'item:var': Optionally a name for the list item variable.
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* 'item:label': Optionally a lebel for the list item variable.
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* @param $variables
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* An optional array as for rule().
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* @return RulesLoop
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*/
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function rules_loop($settings = array(), $variables = NULL) {
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return rules_plugin_factory('loop', $settings, $variables);
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}
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/**
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* Creates a rule set.
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*
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* @param $variables
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* An array as for rule().
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* @param $provides
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* The names of variables which should be provided to the caller. See rule().
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* @return RulesRuleSet
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*/
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function rules_rule_set($variables = array(), $provides = array()) {
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return rules_plugin_factory('rule set', $variables, $provides);
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}
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/**
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* Creates an action set.
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*
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* @param $variables
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* An array as for rule().
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* @param $provides
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* The names of variables which should be provided to the caller. See rule().
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* @return RulesActionSet
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*/
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function rules_action_set($variables = array(), $provides = array()) {
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return rules_plugin_factory('action set', $variables, $provides);
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}
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/**
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* Log a message to the rules logger.
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*
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* @param $msg
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* The message to log.
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* @param $args
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* An array of placeholder arguments as used by t().
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* @param $priority
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* A priority as defined by the RulesLog class.
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* @param RulesPlugin $element
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* (optional) The RulesElement causing the log entry.
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* @param boolean $scope
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* (optional) This may be used to denote the beginning (TRUE) or the end
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* (FALSE) of a new execution scope.
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*/
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function rules_log($msg, $args = array(), $priority = RulesLog::INFO, RulesPlugin $element = NULL, $scope = NULL) {
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static $logger, $settings;
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// Statically cache the variable settings as this is called very often.
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if (!isset($settings)) {
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$settings['rules_log_errors'] = variable_get('rules_log_errors', RulesLog::WARN);
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$settings['rules_debug_log'] = variable_get('rules_debug_log', FALSE);
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$settings['rules_debug'] = variable_get('rules_debug', FALSE);
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}
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if ($priority >= $settings['rules_log_errors']) {
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$link = NULL;
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if (isset($element) && isset($element->root()->name)) {
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$link = l(t('edit configuration'), RulesPluginUI::path($element->root()->name, 'edit', $element));
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}
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// Disabled rules invocation to avoid an endless loop when using
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// watchdog - which would trigger a rules event.
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rules_event_invocation_enabled(FALSE);
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watchdog('rules', $msg, $args, $priority == RulesLog::WARN ? WATCHDOG_WARNING : WATCHDOG_ERROR, $link);
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rules_event_invocation_enabled(TRUE);
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}
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// Do nothing in case debugging is totally disabled.
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if (!$settings['rules_debug_log'] && !$settings['rules_debug']) {
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return;
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}
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if (!isset($logger)) {
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$logger = RulesLog::logger();
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}
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$path = isset($element) && isset($element->root()->name) ? RulesPluginUI::path($element->root()->name, 'edit', $element) : NULL;
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$logger->log($msg, $args, $priority, $scope, $path);
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}
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/**
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* Fetches module definitions for the given hook name.
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*
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* Used for collecting events, rules, actions and condtions from other modules.
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*
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* @param $hook
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* The hook of the definitions to get from invoking hook_rules_{$hook}.
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*/
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function rules_fetch_data($hook) {
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$data = &drupal_static(__FUNCTION__, array());
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static $discover = array(
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'action_info' => 'RulesActionHandlerInterface',
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'condition_info' => 'RulesConditionHandlerInterface',
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'event_info' => 'RulesEventHandlerInterface',
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);
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if (!isset($data[$hook])) {
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$data[$hook] = array();
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foreach (module_implements('rules_' . $hook) as $module) {
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$result = call_user_func($module . '_rules_' . $hook);
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if (isset($result) && is_array($result)) {
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foreach ($result as $name => $item) {
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$item += array('module' => $module);
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$data[$hook][$name] = $item;
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}
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}
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}
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// Support class discovery.
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if (isset($discover[$hook])) {
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$data[$hook] += rules_discover_plugins($discover[$hook]);
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}
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drupal_alter('rules_'. $hook, $data[$hook]);
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}
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return $data[$hook];
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}
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/**
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* Discover plugin implementations.
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*
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* Class based plugin handlers must be loaded when rules caches are rebuilt,
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* such that they get discovered properly. You have the following options:
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* - Put it into a regular module file (discouraged)
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* - Put it into your module.rules.inc file
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* - Put it in any file and declare it using hook_rules_file_info()
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* - Put it in any file and declare it using hook_rules_directory()
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*
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* In addition to that, the class must be loadable via regular class
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* auto-loading, thus put the file holding the class in your info file or use
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* another class-loader.
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*
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* @param string $class
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* The class or interface the plugins must implement. For a plugin to be
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* discovered it must have a static getInfo() method also.
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*
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* @return array
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* An info-hook style array containing info about discovered plugins.
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*
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* @see RulesActionHandlerInterface
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* @see RulesConditionHandlerInterface
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* @see RulesEventHandlerInterface
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*/
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function rules_discover_plugins($class) {
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// Make sure all files possibly holding plugins are included.
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RulesAbstractPlugin::includeFiles();
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$items = array();
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foreach (get_declared_classes() as $plugin_class) {
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if (is_subclass_of($plugin_class, $class) && method_exists($plugin_class, 'getInfo')) {
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$info = call_user_func(array($plugin_class, 'getInfo'));
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$info['class'] = $plugin_class;
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$info['module'] = _rules_discover_module($plugin_class);
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$items[$info['name']] = $info;
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}
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}
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return $items;
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}
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/**
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* Determines the module providing the given class.
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*/
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function _rules_discover_module($class) {
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$paths = &drupal_static(__FUNCTION__);
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if (!isset($paths)) {
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// Build up a map of modules keyed by their directory.
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foreach (system_list('module_enabled') as $name => $module_info) {
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$paths[dirname($module_info->filename)] = $name;
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}
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}
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// Retrieve the class file and convert its absolute path to a regular Drupal
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// path relative to the installation root.
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$reflection = new ReflectionClass($class);
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$path = str_replace(realpath(DRUPAL_ROOT) . DIRECTORY_SEPARATOR, '', realpath(dirname($reflection->getFileName())));
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$path = DIRECTORY_SEPARATOR != '/' ? str_replace(DIRECTORY_SEPARATOR, '/', $path) : $path;
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// Go up the path until we match a module up.
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$parts = explode('/', $path);
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while (!isset($paths[$path]) && array_pop($parts)) {
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$path = dirname($path);
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}
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return isset($paths[$path]) ? $paths[$path] : FALSE;
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}
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/**
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* Gets a rules cache entry.
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*/
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function &rules_get_cache($cid = 'data') {
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// Make use of the fast, advanced drupal static pattern.
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static $drupal_static_fast;
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if (!isset($drupal_static_fast)) {
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$drupal_static_fast['cache'] = &drupal_static(__FUNCTION__, array());
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}
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$cache = &$drupal_static_fast['cache'];
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if (!isset($cache[$cid])) {
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// The main 'data' cache includes translated strings, so each language is
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// cached separately.
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$cid_suffix = $cid == 'data' ? ':' . $GLOBALS['language']->language : '';
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if ($get = cache_get($cid . $cid_suffix, 'cache_rules')) {
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$cache[$cid] = $get->data;
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}
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else {
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// Prevent stampeding by ensuring the cache is rebuilt just once at the
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// same time.
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while (!lock_acquire(__FUNCTION__ . $cid . $cid_suffix, 60)) {
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rules_log('Cache rebuild lock hit: !cid', array('!cid' => $cid), RulesLog::WARN);
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// Now wait until the lock is released.
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lock_wait(__FUNCTION__ . $cid . $cid_suffix, 10);
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// If the lock is released it's likely the cache was rebuild. Thus check
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// again if we can fetch it from the persistent cache.
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if ($get = cache_get($cid . $cid_suffix, 'cache_rules')) {
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$cache[$cid] = $get->data;
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return $cache[$cid];
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}
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}
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if ($cid === 'data') {
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// There is no 'data' cache so we need to rebuild it. Make sure subsequent
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// cache gets of the main 'data' cache during rebuild get the interim
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// cache by passing in the reference of the static cache variable.
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_rules_rebuild_cache($cache['data']);
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}
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elseif (strpos($cid, 'comp_') === 0) {
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$cache[$cid] = FALSE;
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_rules_rebuild_component_cache();
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}
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elseif (strpos($cid, 'event_') === 0) {
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$cache[$cid] = FALSE;
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RulesEventSet::rebuildEventCache();
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}
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else {
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$cache[$cid] = FALSE;
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}
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// Ensure a set lock is released.
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lock_release(__FUNCTION__ . $cid . $cid_suffix);
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}
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}
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return $cache[$cid];
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}
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/**
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* Rebuilds the rules cache.
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*
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* This rebuilds the rules 'data' cache and invokes rebuildCache() methods on
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* all plugin classes, which allows plugins to add their own data to the cache.
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* The cache is rebuilt in the order the plugins are defined.
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*
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* Note that building the action/condition info cache triggers loading of all
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* components, thus depends on entity-loading and so syncing entities in code
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* to the database.
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*
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* @see rules_rules_plugin_info()
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* @see entity_defaults_rebuild()
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*/
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function _rules_rebuild_cache(&$cache) {
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foreach(array('data_info', 'plugin_info') as $hook) {
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$cache[$hook] = rules_fetch_data($hook);
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}
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foreach ($cache['plugin_info'] as $name => &$info) {
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// Let the items add something to the cache.
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$item = new $info['class']();
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$item->rebuildCache($info, $cache);
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}
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$cid_suffix = ':' . $GLOBALS['language']->language;
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cache_set('data' . $cid_suffix, $cache, 'cache_rules');
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}
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/**
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* Cache components to allow efficient usage via rules_invoke_component().
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*
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* @see rules_invoke_component()
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* @see rules_get_cache()
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*/
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function _rules_rebuild_component_cache() {
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$components = rules_get_components();
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foreach ($components as $id => $component) {
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// If a component is marked as dirty, check if this still applies.
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if ($component->dirty) {
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rules_config_update_dirty_flag($component);
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}
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if (!$component->dirty) {
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// Clone the component to avoid modules getting the to be cached
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// version from the static loading cache.
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$component = clone $component;
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$component->optimize();
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// Allow modules to alter the cached component.
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drupal_alter('rules_component', $component->plugin, $component);
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rules_set_cache('comp_' . $component->name, $component);
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}
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}
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}
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/**
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* Sets a rules cache item.
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*
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* In addition to calling cache_set(), this function makes sure the cache item
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426
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* is immediately available via rules_get_cache() by keeping all cache items
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* in memory. That way we can guarantee rules_get_cache() is able to retrieve
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* any cache item, even if all cache gets fail.
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*
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* @see rules_get_cache()
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*/
|
432
|
function rules_set_cache($cid, $data) {
|
433
|
$cache = &drupal_static('rules_get_cache', array());
|
434
|
$cache[$cid] = $data;
|
435
|
cache_set($cid, $data, 'cache_rules');
|
436
|
}
|
437
|
|
438
|
/**
|
439
|
* Implements hook_flush_caches().
|
440
|
*/
|
441
|
function rules_flush_caches() {
|
442
|
return array('cache_rules');
|
443
|
}
|
444
|
|
445
|
/**
|
446
|
* Clears the rule set cache
|
447
|
*/
|
448
|
function rules_clear_cache() {
|
449
|
cache_clear_all('*', 'cache_rules', TRUE);
|
450
|
variable_del('rules_event_whitelist');
|
451
|
drupal_static_reset('rules_get_cache');
|
452
|
drupal_static_reset('rules_fetch_data');
|
453
|
drupal_static_reset('rules_config_update_dirty_flag');
|
454
|
entity_get_controller('rules_config')->resetCache();
|
455
|
}
|
456
|
|
457
|
/**
|
458
|
* Imports the given export and returns the imported configuration.
|
459
|
*
|
460
|
* @param $export
|
461
|
* A serialized string in JSON format as produced by the RulesPlugin::export()
|
462
|
* method, or the PHP export as usual PHP array.
|
463
|
* @return RulesPlugin
|
464
|
*/
|
465
|
function rules_import($export, &$error_msg = '') {
|
466
|
return entity_get_controller('rules_config')->import($export, $error_msg);
|
467
|
}
|
468
|
|
469
|
|
470
|
/**
|
471
|
* Wraps the given data.
|
472
|
*
|
473
|
* @param $data
|
474
|
* If available, the actual data, else NULL.
|
475
|
* @param $info
|
476
|
* An array of info about this data.
|
477
|
* @param $force
|
478
|
* Usually data is only wrapped if really needed. If set to TRUE, wrapping the
|
479
|
* data is forced, so primitive data types are also wrapped.
|
480
|
* @return EntityMetadataWrapper
|
481
|
* An EntityMetadataWrapper or the unwrapped data.
|
482
|
*
|
483
|
* @see hook_rules_data_info()
|
484
|
*/
|
485
|
function &rules_wrap_data($data = NULL, $info, $force = FALSE) {
|
486
|
// If the data is already wrapped, use the existing wrapper.
|
487
|
if ($data instanceof EntityMetadataWrapper) {
|
488
|
return $data;
|
489
|
}
|
490
|
$cache = rules_get_cache();
|
491
|
// Define the keys to be passed through to the metadata wrapper.
|
492
|
$wrapper_keys = array_flip(array('property info', 'property defaults'));
|
493
|
if (isset($cache['data_info'][$info['type']])) {
|
494
|
$info += array_intersect_key($cache['data_info'][$info['type']], $wrapper_keys);
|
495
|
}
|
496
|
// If a list is given, also add in the info of the item type.
|
497
|
$list_item_type = entity_property_list_extract_type($info['type']);
|
498
|
if ($list_item_type && isset($cache['data_info'][$list_item_type])) {
|
499
|
$info += array_intersect_key($cache['data_info'][$list_item_type], $wrapper_keys);
|
500
|
}
|
501
|
// By default we do not wrap the data, except for completely unknown types.
|
502
|
if (!empty($cache['data_info'][$info['type']]['wrap']) || $list_item_type || $force || empty($cache['data_info'][$info['type']])) {
|
503
|
unset($info['handler']);
|
504
|
// Allow data types to define custom wrapper classes.
|
505
|
if (!empty($cache['data_info'][$info['type']]['wrapper class'])) {
|
506
|
$class = $cache['data_info'][$info['type']]['wrapper class'];
|
507
|
$wrapper = new $class($info['type'], $data, $info);
|
508
|
}
|
509
|
else {
|
510
|
$wrapper = entity_metadata_wrapper($info['type'], $data, $info);
|
511
|
}
|
512
|
return $wrapper;
|
513
|
}
|
514
|
return $data;
|
515
|
}
|
516
|
|
517
|
/**
|
518
|
* Unwraps the given data, if it's wrapped.
|
519
|
*
|
520
|
* @param $data
|
521
|
* An array of wrapped data.
|
522
|
* @param $info
|
523
|
* Optionally an array of info about how to unwrap the data. Keyed as $data.
|
524
|
* @return
|
525
|
* An array containing unwrapped or passed through data.
|
526
|
*/
|
527
|
function rules_unwrap_data(array $data, $info = array()) {
|
528
|
$cache = rules_get_cache();
|
529
|
foreach ($data as $key => $entry) {
|
530
|
// If it's a wrapper, unwrap unless specified otherwise.
|
531
|
if ($entry instanceof EntityMetadataWrapper) {
|
532
|
if (!isset($info[$key]['allow null'])) {
|
533
|
$info[$key]['allow null'] = FALSE;
|
534
|
}
|
535
|
if (!isset($info[$key]['wrapped'])) {
|
536
|
// By default, do not unwrap special data types that are always wrapped.
|
537
|
$info[$key]['wrapped'] = (isset($info[$key]['type']) && is_string($info[$key]['type']) && !empty($cache['data_info'][$info[$key]['type']]['is wrapped']));
|
538
|
}
|
539
|
// Activate the decode option by default if 'sanitize' is not enabled, so
|
540
|
// any text is either sanitized or decoded.
|
541
|
// @see EntityMetadataWrapper::value()
|
542
|
$options = $info[$key] + array('decode' => empty($info[$key]['sanitize']));
|
543
|
|
544
|
try {
|
545
|
if (!($info[$key]['allow null'] && $info[$key]['wrapped'])) {
|
546
|
$value = $entry->value($options);
|
547
|
|
548
|
if (!$info[$key]['wrapped']) {
|
549
|
$data[$key] = $value;
|
550
|
}
|
551
|
if (!$info[$key]['allow null'] && !isset($value)) {
|
552
|
throw new RulesEvaluationException('The variable or parameter %name is empty.', array('%name' => $key));
|
553
|
}
|
554
|
}
|
555
|
}
|
556
|
catch (EntityMetadataWrapperException $e) {
|
557
|
throw new RulesEvaluationException('Unable to get the data value for the variable or parameter %name. Error: !error', array('%name' => $key, '!error' => $e->getMessage()));
|
558
|
}
|
559
|
}
|
560
|
}
|
561
|
return $data;
|
562
|
}
|
563
|
|
564
|
/**
|
565
|
* Gets event info for a given event.
|
566
|
*
|
567
|
* @param string $event_name
|
568
|
* A (configured) event name.
|
569
|
*
|
570
|
* @return array
|
571
|
* An array of event info. If the event is unknown, a suiting info array is
|
572
|
* generated and returned
|
573
|
*/
|
574
|
function rules_get_event_info($event_name) {
|
575
|
$base_event_name = rules_get_event_base_name($event_name);
|
576
|
$events = rules_fetch_data('event_info');
|
577
|
if (isset($events[$base_event_name])) {
|
578
|
return $events[$base_event_name] + array('name' => $base_event_name);
|
579
|
}
|
580
|
return array(
|
581
|
'label' => t('Unknown event "!event_name"', array('!event_name' => $base_event_name)),
|
582
|
'name' => $base_event_name,
|
583
|
);
|
584
|
}
|
585
|
|
586
|
/**
|
587
|
* Returns the base name of a configured event name.
|
588
|
*
|
589
|
* For a configured event name like node_view--article the base event name
|
590
|
* node_view is returned.
|
591
|
*
|
592
|
* @return string
|
593
|
* The event base name.
|
594
|
*/
|
595
|
function rules_get_event_base_name($event_name) {
|
596
|
// Cut off any suffix from a configured event name.
|
597
|
if (strpos($event_name, '--') !== FALSE) {
|
598
|
$parts = explode('--', $event_name, 2);
|
599
|
return $parts[0];
|
600
|
}
|
601
|
return $event_name;
|
602
|
}
|
603
|
|
604
|
/**
|
605
|
* Returns the rule event handler for the given event.
|
606
|
*
|
607
|
* Events having no settings are handled via the class RulesEventSettingsNone.
|
608
|
*
|
609
|
* @param string $event_name
|
610
|
* The event name (base or configured).
|
611
|
* @param array $settings
|
612
|
* (optional) An array of event settings to set on the handler.
|
613
|
*
|
614
|
* @return RulesEventHandlerInterface
|
615
|
* The event handler.
|
616
|
*/
|
617
|
function rules_get_event_handler($event_name, array $settings = NULL) {
|
618
|
$event_name = rules_get_event_base_name($event_name);
|
619
|
$event_info = rules_get_event_info($event_name);
|
620
|
$class = !empty($event_info['class']) ? $event_info['class'] : 'RulesEventDefaultHandler';
|
621
|
$handler = new $class($event_name, $event_info);
|
622
|
return isset($settings) ? $handler->setSettings($settings) : $handler;
|
623
|
}
|
624
|
|
625
|
/**
|
626
|
* Creates a new instance of a the given rules plugin.
|
627
|
*
|
628
|
* @return RulesPlugin
|
629
|
*/
|
630
|
function rules_plugin_factory($plugin_name, $arg1 = NULL, $arg2 = NULL) {
|
631
|
$cache = rules_get_cache();
|
632
|
if (isset($cache['plugin_info'][$plugin_name]['class'])) {
|
633
|
return new $cache['plugin_info'][$plugin_name]['class']($arg1, $arg2);
|
634
|
}
|
635
|
}
|
636
|
|
637
|
/**
|
638
|
* Implementation of hook_rules_plugin_info().
|
639
|
*
|
640
|
* Note that the cache is rebuilt in the order of the plugins. Therefore the
|
641
|
* condition and action plugins must be at the top, so that any components
|
642
|
* re-building their cache can create configurations including properly setup-ed
|
643
|
* actions and conditions.
|
644
|
*/
|
645
|
function rules_rules_plugin_info() {
|
646
|
return array(
|
647
|
'condition' => array(
|
648
|
'class' => 'RulesCondition',
|
649
|
'embeddable' => 'RulesConditionContainer',
|
650
|
'extenders' => array (
|
651
|
'RulesPluginImplInterface' => array(
|
652
|
'class' => 'RulesAbstractPluginDefaults',
|
653
|
),
|
654
|
'RulesPluginFeaturesIntegrationInterace' => array(
|
655
|
'methods' => array(
|
656
|
'features_export' => 'rules_features_abstract_default_features_export',
|
657
|
),
|
658
|
),
|
659
|
'RulesPluginUIInterface' => array(
|
660
|
'class' => 'RulesAbstractPluginUI',
|
661
|
),
|
662
|
),
|
663
|
),
|
664
|
'action' => array(
|
665
|
'class' => 'RulesAction',
|
666
|
'embeddable' => 'RulesActionContainer',
|
667
|
'extenders' => array (
|
668
|
'RulesPluginImplInterface' => array(
|
669
|
'class' => 'RulesAbstractPluginDefaults',
|
670
|
),
|
671
|
'RulesPluginFeaturesIntegrationInterace' => array(
|
672
|
'methods' => array(
|
673
|
'features_export' => 'rules_features_abstract_default_features_export',
|
674
|
),
|
675
|
),
|
676
|
'RulesPluginUIInterface' => array(
|
677
|
'class' => 'RulesAbstractPluginUI',
|
678
|
),
|
679
|
),
|
680
|
),
|
681
|
'or' => array(
|
682
|
'label' => t('Condition set (OR)'),
|
683
|
'class' => 'RulesOr',
|
684
|
'embeddable' => 'RulesConditionContainer',
|
685
|
'component' => TRUE,
|
686
|
'extenders' => array(
|
687
|
'RulesPluginUIInterface' => array(
|
688
|
'class' => 'RulesConditionContainerUI',
|
689
|
),
|
690
|
),
|
691
|
),
|
692
|
'and' => array(
|
693
|
'label' => t('Condition set (AND)'),
|
694
|
'class' => 'RulesAnd',
|
695
|
'embeddable' => 'RulesConditionContainer',
|
696
|
'component' => TRUE,
|
697
|
'extenders' => array(
|
698
|
'RulesPluginUIInterface' => array(
|
699
|
'class' => 'RulesConditionContainerUI',
|
700
|
),
|
701
|
),
|
702
|
),
|
703
|
'action set' => array(
|
704
|
'label' => t('Action set'),
|
705
|
'class' => 'RulesActionSet',
|
706
|
'embeddable' => FALSE,
|
707
|
'component' => TRUE,
|
708
|
'extenders' => array(
|
709
|
'RulesPluginUIInterface' => array(
|
710
|
'class' => 'RulesActionContainerUI',
|
711
|
),
|
712
|
),
|
713
|
),
|
714
|
'rule' => array(
|
715
|
'label' => t('Rule'),
|
716
|
'class' => 'Rule',
|
717
|
'embeddable' => 'RulesRuleSet',
|
718
|
'component' => TRUE,
|
719
|
'extenders' => array(
|
720
|
'RulesPluginUIInterface' => array(
|
721
|
'class' => 'RulesRuleUI',
|
722
|
),
|
723
|
),
|
724
|
),
|
725
|
'loop' => array(
|
726
|
'class' => 'RulesLoop',
|
727
|
'embeddable' => 'RulesActionContainer',
|
728
|
'extenders' => array(
|
729
|
'RulesPluginUIInterface' => array(
|
730
|
'class' => 'RulesLoopUI',
|
731
|
),
|
732
|
),
|
733
|
),
|
734
|
'reaction rule' => array(
|
735
|
'class' => 'RulesReactionRule',
|
736
|
'embeddable' => FALSE,
|
737
|
'extenders' => array(
|
738
|
'RulesPluginUIInterface' => array(
|
739
|
'class' => 'RulesReactionRuleUI',
|
740
|
),
|
741
|
),
|
742
|
),
|
743
|
'event set' => array(
|
744
|
'class' => 'RulesEventSet',
|
745
|
'embeddable' => FALSE,
|
746
|
),
|
747
|
'rule set' => array(
|
748
|
'label' => t('Rule set'),
|
749
|
'class' => 'RulesRuleSet',
|
750
|
'component' => TRUE,
|
751
|
// Rule sets don't get embedded - we use a separate action to execute.
|
752
|
'embeddable' => FALSE,
|
753
|
'extenders' => array(
|
754
|
'RulesPluginUIInterface' => array(
|
755
|
'class' => 'RulesRuleSetUI',
|
756
|
),
|
757
|
),
|
758
|
),
|
759
|
);
|
760
|
}
|
761
|
|
762
|
/**
|
763
|
* Implementation of hook_entity_info().
|
764
|
*/
|
765
|
function rules_entity_info() {
|
766
|
return array(
|
767
|
'rules_config' => array(
|
768
|
'label' => t('Rules configuration'),
|
769
|
'controller class' => 'RulesEntityController',
|
770
|
'base table' => 'rules_config',
|
771
|
'fieldable' => TRUE,
|
772
|
'entity keys' => array(
|
773
|
'id' => 'id',
|
774
|
'name' => 'name',
|
775
|
'label' => 'label',
|
776
|
),
|
777
|
'module' => 'rules',
|
778
|
'static cache' => TRUE,
|
779
|
'bundles' => array(),
|
780
|
'configuration' => TRUE,
|
781
|
'exportable' => TRUE,
|
782
|
'export' => array(
|
783
|
'default hook' => 'default_rules_configuration',
|
784
|
),
|
785
|
'access callback' => 'rules_config_access',
|
786
|
'features controller class' => 'RulesFeaturesController',
|
787
|
),
|
788
|
);
|
789
|
}
|
790
|
|
791
|
/**
|
792
|
* Implementation of hook_hook_info().
|
793
|
*/
|
794
|
function rules_hook_info() {
|
795
|
foreach(array('plugin_info', 'rules_directory', 'data_info', 'condition_info', 'action_info', 'event_info', 'file_info', 'evaluator_info', 'data_processor_info') as $hook) {
|
796
|
$hooks['rules_' . $hook] = array(
|
797
|
'group' => 'rules',
|
798
|
);
|
799
|
$hooks['rules_' . $hook . '_alter'] = array(
|
800
|
'group' => 'rules',
|
801
|
);
|
802
|
}
|
803
|
$hooks['default_rules_configuration'] = array(
|
804
|
'group' => 'rules_defaults',
|
805
|
);
|
806
|
$hooks['default_rules_configuration_alter'] = array(
|
807
|
'group' => 'rules_defaults',
|
808
|
);
|
809
|
return $hooks;
|
810
|
}
|
811
|
|
812
|
/**
|
813
|
* Load rule configurations from the database.
|
814
|
*
|
815
|
* This function should be used whenever you need to load more than one entity
|
816
|
* from the database. The entities are loaded into memory and will not require
|
817
|
* database access if loaded again during the same page request.
|
818
|
*
|
819
|
* @see hook_entity_info()
|
820
|
* @see RulesEntityController
|
821
|
*
|
822
|
* @param $names
|
823
|
* An array of rules configuration names or FALSE to load all.
|
824
|
* @param $conditions
|
825
|
* An array of conditions in the form 'field' => $value.
|
826
|
*
|
827
|
* @return
|
828
|
* An array of rule configurations indexed by their ids.
|
829
|
*/
|
830
|
function rules_config_load_multiple($names = array(), $conditions = array()) {
|
831
|
return entity_load_multiple_by_name('rules_config', $names, $conditions);
|
832
|
}
|
833
|
|
834
|
/**
|
835
|
* Loads a single rule configuration from the database.
|
836
|
*
|
837
|
* @see rules_config_load_multiple()
|
838
|
*
|
839
|
* @return RulesPlugin
|
840
|
*/
|
841
|
function rules_config_load($name) {
|
842
|
return entity_load_single('rules_config', $name);
|
843
|
}
|
844
|
|
845
|
/**
|
846
|
* Returns an array of configured components.
|
847
|
*
|
848
|
* For actually executing a component use rules_invoke_component(), as this
|
849
|
* retrieves the component from cache instead.
|
850
|
*
|
851
|
* @param $label
|
852
|
* Whether to return only the label or the whole component object.
|
853
|
* @param $type
|
854
|
* Optionally filter for 'action' or 'condition' components.
|
855
|
* @param $conditions
|
856
|
* An array of additional conditions as required by rules_config_load().
|
857
|
*
|
858
|
* @return
|
859
|
* An array keyed by component name containing either the label or the config.
|
860
|
*/
|
861
|
function rules_get_components($label = FALSE, $type = NULL, $conditions = array()) {
|
862
|
$cache = rules_get_cache();
|
863
|
$plugins = array_keys(rules_filter_array($cache['plugin_info'], 'component', TRUE));
|
864
|
$conditions = $conditions + array('plugin' => $plugins);
|
865
|
$faces = array(
|
866
|
'action' => 'RulesActionInterface',
|
867
|
'condition' => 'RulesConditionInterface',
|
868
|
);
|
869
|
$items = array();
|
870
|
foreach (rules_config_load_multiple(FALSE, $conditions) as $name => $config) {
|
871
|
if (!isset($type) || $config instanceof $faces[$type]) {
|
872
|
$items[$name] = $label ? $config->label() : $config;
|
873
|
}
|
874
|
}
|
875
|
return $items;
|
876
|
}
|
877
|
|
878
|
/**
|
879
|
* Delete rule configurations from database.
|
880
|
*
|
881
|
* @param $ids
|
882
|
* An array of entity IDs.
|
883
|
*/
|
884
|
function rules_config_delete(array $ids) {
|
885
|
return entity_get_controller('rules_config')->delete($ids);
|
886
|
}
|
887
|
|
888
|
/**
|
889
|
* Ensures the configuration's 'dirty' flag is up to date by running an integrity check.
|
890
|
*
|
891
|
* @param $update
|
892
|
* (optional) Whether the dirty flag is also updated in the database if
|
893
|
* necessary. Defaults to TRUE.
|
894
|
*/
|
895
|
function rules_config_update_dirty_flag($rules_config, $update = TRUE) {
|
896
|
// Keep a log of already check configurations to avoid repetitive checks on
|
897
|
// oftent used components.
|
898
|
// @see rules_element_invoke_component_validate()
|
899
|
$checked = &drupal_static(__FUNCTION__, array());
|
900
|
if (!empty($checked[$rules_config->name])) {
|
901
|
return;
|
902
|
}
|
903
|
$checked[$rules_config->name] = TRUE;
|
904
|
|
905
|
$was_dirty = !empty($rules_config->dirty);
|
906
|
try {
|
907
|
// First set the rule to dirty, so any repetitive checks give green light
|
908
|
// for this configuration.
|
909
|
$rules_config->dirty = FALSE;
|
910
|
$rules_config->integrityCheck();
|
911
|
if ($was_dirty) {
|
912
|
$variables = array('%label' => $rules_config->label(), '%name' => $rules_config->name, '@plugin' => $rules_config->plugin());
|
913
|
watchdog('rules', 'The @plugin %label (%name) was marked dirty, but passes the integrity check now and is active again.', $variables, WATCHDOG_INFO);
|
914
|
}
|
915
|
}
|
916
|
catch (RulesIntegrityException $e) {
|
917
|
$rules_config->dirty = TRUE;
|
918
|
if (!$was_dirty) {
|
919
|
$variables = array('%label' => $rules_config->label(), '%name' => $rules_config->name, '!message' => $e->getMessage(), '@plugin' => $rules_config->plugin());
|
920
|
watchdog('rules', 'The @plugin %label (%name) fails the integrity check and cannot be executed. Error: !message', $variables, WATCHDOG_ERROR);
|
921
|
}
|
922
|
}
|
923
|
// Save the updated dirty flag to the database.
|
924
|
if ($was_dirty != $rules_config->dirty) {
|
925
|
db_update('rules_config')
|
926
|
->fields(array('dirty' => (int) $rules_config->dirty))
|
927
|
->condition('id', $rules_config->id)
|
928
|
->execute();
|
929
|
}
|
930
|
}
|
931
|
|
932
|
/**
|
933
|
* Invokes a hook and the associated rules event.
|
934
|
*
|
935
|
* Calling this function does the same as calling module_invoke_all() and
|
936
|
* rules_invoke_event() separately, however merges both functions into one in
|
937
|
* order to ease usage and to work efficiently.
|
938
|
*
|
939
|
* @param $hook
|
940
|
* The name of the hook / event to invoke.
|
941
|
* @param ...
|
942
|
* Arguments to pass to the hook / event.
|
943
|
*
|
944
|
* @return
|
945
|
* An array of return values of the hook implementations. If modules return
|
946
|
* arrays from their implementations, those are merged into one array.
|
947
|
*/
|
948
|
function rules_invoke_all() {
|
949
|
// Copied code from module_invoke_all().
|
950
|
$args = func_get_args();
|
951
|
$hook = $args[0];
|
952
|
unset($args[0]);
|
953
|
$return = array();
|
954
|
foreach (module_implements($hook) as $module) {
|
955
|
$function = $module . '_' . $hook;
|
956
|
if (function_exists($function)) {
|
957
|
$result = call_user_func_array($function, $args);
|
958
|
if (isset($result) && is_array($result)) {
|
959
|
$return = array_merge_recursive($return, $result);
|
960
|
}
|
961
|
elseif (isset($result)) {
|
962
|
$return[] = $result;
|
963
|
}
|
964
|
}
|
965
|
}
|
966
|
// Invoke the event.
|
967
|
rules_invoke_event_by_args($hook, $args);
|
968
|
|
969
|
return $return;
|
970
|
}
|
971
|
|
972
|
/**
|
973
|
* Invokes configured rules for the given event.
|
974
|
*
|
975
|
* @param $event_name
|
976
|
* The event's name.
|
977
|
* @param ...
|
978
|
* Pass parameters for the variables provided by this event, as defined in
|
979
|
* hook_rules_event_info(). Example given:
|
980
|
* @code
|
981
|
* rules_invoke_event('node_view', $node, $view_mode);
|
982
|
* @endcode
|
983
|
*
|
984
|
* @see rules_invoke_event_by_args()
|
985
|
*/
|
986
|
function rules_invoke_event() {
|
987
|
global $conf;
|
988
|
|
989
|
$args = func_get_args();
|
990
|
$event_name = $args[0];
|
991
|
unset($args[0]);
|
992
|
// We maintain a whitelist of configured events to reduces the number of cache
|
993
|
// reads. We access it directly via the global $conf as this is fast without
|
994
|
// having to introduce another static cache. Then, if the whitelist is unset,
|
995
|
// we ignore it so cache rebuilding is triggered.
|
996
|
if (rules_event_invocation_enabled() && (!isset($conf['rules_event_whitelist']) || isset($conf['rules_event_whitelist'][$event_name])) && $event = rules_get_cache('event_' . $event_name)) {
|
997
|
$event->executeByArgs($args);
|
998
|
}
|
999
|
}
|
1000
|
|
1001
|
/**
|
1002
|
* Invokes configured rules for the given event.
|
1003
|
*
|
1004
|
* @param $event_name
|
1005
|
* The event's name.
|
1006
|
* @param $args
|
1007
|
* An array of parameters for the variables provided by the event, as defined
|
1008
|
* in hook_rules_event_info(). Either pass an array keyed by the variable
|
1009
|
* names or a numerically indexed array, in which case the ordering of the
|
1010
|
* passed parameters has to match the order of the specified variables.
|
1011
|
* Example given:
|
1012
|
* @code
|
1013
|
* rules_invoke_event_by_args('node_view', array('node' => $node, 'view_mode' => $view_mode));
|
1014
|
* @endcode
|
1015
|
*
|
1016
|
* @see rules_invoke_event()
|
1017
|
*/
|
1018
|
function rules_invoke_event_by_args($event_name, $args = array()) {
|
1019
|
global $conf;
|
1020
|
|
1021
|
// We maintain a whitelist of configured events to reduces the number of cache
|
1022
|
// reads. We access it directly via the global $conf as this is fast without
|
1023
|
// having to introduce another static cache. Then, if the whitelist is unset,
|
1024
|
// we ignore it so cache rebuilding is triggered.
|
1025
|
if (rules_event_invocation_enabled() && (!isset($conf['rules_event_whitelist']) || isset($conf['rules_event_whitelist'][$event_name])) && $event = rules_get_cache('event_' . $event_name)) {
|
1026
|
$event->executeByArgs($args);
|
1027
|
}
|
1028
|
}
|
1029
|
|
1030
|
/**
|
1031
|
* Invokes a rule component, e.g. a rule set.
|
1032
|
*
|
1033
|
* @param $component_name
|
1034
|
* The component's name.
|
1035
|
* @param $args
|
1036
|
* Pass further parameters as required for the invoked component.
|
1037
|
*
|
1038
|
* @return
|
1039
|
* An array of variables as provided by the component, or FALSE in case the
|
1040
|
* component could not be executed.
|
1041
|
*/
|
1042
|
function rules_invoke_component() {
|
1043
|
$args = func_get_args();
|
1044
|
$name = array_shift($args);
|
1045
|
if ($component = rules_get_cache('comp_' . $name)) {
|
1046
|
return $component->executeByArgs($args);
|
1047
|
}
|
1048
|
return FALSE;
|
1049
|
}
|
1050
|
|
1051
|
/**
|
1052
|
* Filters the given array of arrays by keeping only entries which have $key set
|
1053
|
* to the value of $value.
|
1054
|
*
|
1055
|
* @param $array
|
1056
|
* The array of arrays to filter.
|
1057
|
* @param $key
|
1058
|
* The key used for the comparison.
|
1059
|
* @param $value
|
1060
|
* The value to compare the array's entry to.
|
1061
|
*
|
1062
|
* @return array
|
1063
|
* The filtered array.
|
1064
|
*/
|
1065
|
function rules_filter_array($array, $key, $value) {
|
1066
|
$return = array();
|
1067
|
foreach ($array as $i => $entry) {
|
1068
|
$entry += array($key => NULL);
|
1069
|
if ($entry[$key] == $value) {
|
1070
|
$return[$i] = $entry;
|
1071
|
}
|
1072
|
}
|
1073
|
return $return;
|
1074
|
}
|
1075
|
|
1076
|
/**
|
1077
|
* Merges the $update array into $array making sure no values of $array not
|
1078
|
* appearing in $update are lost.
|
1079
|
*
|
1080
|
* @return
|
1081
|
* The updated array.
|
1082
|
*/
|
1083
|
function rules_update_array(array $array, array $update) {
|
1084
|
foreach ($update as $key => $data) {
|
1085
|
if (isset($array[$key]) && is_array($array[$key]) && is_array($data)) {
|
1086
|
$array[$key] = rules_update_array($array[$key], $data);
|
1087
|
}
|
1088
|
else {
|
1089
|
$array[$key] = $data;
|
1090
|
}
|
1091
|
}
|
1092
|
return $array;
|
1093
|
}
|
1094
|
|
1095
|
/**
|
1096
|
* Extracts the property with the given name.
|
1097
|
*
|
1098
|
* @param $arrays
|
1099
|
* An array of arrays from which a property is to be extracted.
|
1100
|
* @param $key
|
1101
|
* The name of the property to extract.
|
1102
|
*
|
1103
|
* @return An array of extracted properties, keyed as in $arrays-
|
1104
|
*/
|
1105
|
function rules_extract_property($arrays, $key) {
|
1106
|
$data = array();
|
1107
|
foreach ($arrays as $name => $item) {
|
1108
|
$data[$name] = $item[$key];
|
1109
|
}
|
1110
|
return $data;
|
1111
|
}
|
1112
|
|
1113
|
/**
|
1114
|
* Returns the first key of the array.
|
1115
|
*/
|
1116
|
function rules_array_key($array) {
|
1117
|
reset($array);
|
1118
|
return key($array);
|
1119
|
}
|
1120
|
|
1121
|
/**
|
1122
|
* Clean replacements so they are URL friendly.
|
1123
|
*
|
1124
|
* Can be used as 'cleaning callback' for action or condition parameters.
|
1125
|
*
|
1126
|
* @param $replacements
|
1127
|
* An array of token replacements that need to be "cleaned" for use in the URL.
|
1128
|
* @param $data
|
1129
|
* An array of objects used to generate the replacements.
|
1130
|
* @param $options
|
1131
|
* An array of options used to generate the replacements.
|
1132
|
*
|
1133
|
* @see rules_path_action_info()
|
1134
|
*/
|
1135
|
function rules_path_clean_replacement_values(&$replacements, $data = array(), $options = array()) {
|
1136
|
// Include path.eval.inc which contains path cleaning functions.
|
1137
|
module_load_include('inc', 'rules', 'modules/path.eval');
|
1138
|
foreach ($replacements as $token => $value) {
|
1139
|
$replacements[$token] = rules_clean_path($value);
|
1140
|
}
|
1141
|
}
|
1142
|
|
1143
|
/**
|
1144
|
* Implements hook_theme().
|
1145
|
*/
|
1146
|
function rules_theme() {
|
1147
|
return array(
|
1148
|
'rules_elements' => array(
|
1149
|
'render element' => 'element',
|
1150
|
'file' => 'ui/ui.theme.inc',
|
1151
|
),
|
1152
|
'rules_content_group' => array(
|
1153
|
'render element' => 'element',
|
1154
|
'file' => 'ui/ui.theme.inc',
|
1155
|
),
|
1156
|
'rules_parameter_configuration' => array(
|
1157
|
'render element' => 'element',
|
1158
|
'file' => 'ui/ui.theme.inc',
|
1159
|
),
|
1160
|
'rules_variable_view' => array(
|
1161
|
'render element' => 'element',
|
1162
|
'file' => 'ui/ui.theme.inc',
|
1163
|
),
|
1164
|
'rules_data_selector_help' => array(
|
1165
|
'variables' => array('parameter' => NULL, 'variables' => NULL),
|
1166
|
'file' => 'ui/ui.theme.inc',
|
1167
|
),
|
1168
|
'rules_ui_variable_form' => array(
|
1169
|
'render element' => 'element',
|
1170
|
'file' => 'ui/ui.theme.inc',
|
1171
|
),
|
1172
|
'rules_log' => array(
|
1173
|
'render element' => 'element',
|
1174
|
'file' => 'ui/ui.theme.inc',
|
1175
|
),
|
1176
|
'rules_autocomplete' => array(
|
1177
|
'render element' => 'element',
|
1178
|
'file' => 'ui/ui.theme.inc',
|
1179
|
),
|
1180
|
'rules_debug_element' => array(
|
1181
|
'render element' => 'element',
|
1182
|
'file' => 'ui/ui.theme.inc',
|
1183
|
),
|
1184
|
'rules_settings_help' => array(
|
1185
|
'variables' => array('text' => '', 'heading' => ''),
|
1186
|
'file' => 'ui/ui.theme.inc',
|
1187
|
),
|
1188
|
);
|
1189
|
}
|
1190
|
|
1191
|
/**
|
1192
|
* Implements hook_permission().
|
1193
|
*/
|
1194
|
function rules_permission() {
|
1195
|
$perms = array(
|
1196
|
'administer rules' => array(
|
1197
|
'title' => t('Administer rule configurations'),
|
1198
|
'description' => t('Administer rule configurations including events, conditions and actions for which the user has sufficient access permissions.'),
|
1199
|
),
|
1200
|
'bypass rules access' => array(
|
1201
|
'title' => t('Bypass Rules access control'),
|
1202
|
'description' => t('Control all configurations regardless of permission restrictions of events, conditions or actions.'),
|
1203
|
'restrict access' => TRUE,
|
1204
|
),
|
1205
|
'access rules debug' => array(
|
1206
|
'title' => t('Access the Rules debug log'),
|
1207
|
),
|
1208
|
);
|
1209
|
|
1210
|
// Fetch all components to generate the access keys.
|
1211
|
$conditions['plugin'] = array_keys(rules_filter_array(rules_fetch_data('plugin_info'), 'component', TRUE));
|
1212
|
$conditions['access_exposed'] = 1;
|
1213
|
$components = entity_load('rules_config', FALSE, $conditions);
|
1214
|
$perms += rules_permissions_by_component($components);
|
1215
|
|
1216
|
return $perms;
|
1217
|
}
|
1218
|
|
1219
|
/**
|
1220
|
* Helper function to get all the permissions for components that have access exposed.
|
1221
|
*/
|
1222
|
function rules_permissions_by_component(array $components = array()) {
|
1223
|
$perms = array();
|
1224
|
foreach ($components as $component) {
|
1225
|
$perms += array(
|
1226
|
"use Rules component $component->name" => array(
|
1227
|
'title' => t('Use Rules component %component', array('%component' => $component->label())),
|
1228
|
'description' => t('Controls access for using the component %component via the provided action or condition. <a href="@component-edit-url">Edit this component.</a>', array('%component' => $component->label(), '@component-edit-url' => url(RulesPluginUI::path($component->name)))),
|
1229
|
),
|
1230
|
);
|
1231
|
}
|
1232
|
return $perms;
|
1233
|
}
|
1234
|
|
1235
|
/**
|
1236
|
* Menu callback for loading rules configuration elements.
|
1237
|
* @see RulesUIController::config_menu()
|
1238
|
*/
|
1239
|
function rules_element_load($element_id, $config_name) {
|
1240
|
$config = rules_config_load($config_name);
|
1241
|
return $config->elementMap()->lookup($element_id);
|
1242
|
}
|
1243
|
|
1244
|
/**
|
1245
|
* Menu callback for getting the title as configured.
|
1246
|
* @see RulesUIController::config_menu()
|
1247
|
*/
|
1248
|
function rules_get_title($text, $element) {
|
1249
|
if ($element instanceof RulesPlugin) {
|
1250
|
$cache = rules_get_cache();
|
1251
|
$plugin = $element->plugin();
|
1252
|
$plugin = isset($cache['plugin_info'][$plugin]['label']) ? $cache['plugin_info'][$plugin]['label'] : $plugin;
|
1253
|
$plugin = drupal_strtolower(drupal_substr($plugin, 0, 1)) . drupal_substr($plugin, 1);
|
1254
|
return t($text, array('!label' => $element->label(), '!plugin' => $plugin));
|
1255
|
}
|
1256
|
// As fallback treat $element as simple string.
|
1257
|
return t($text, array('!plugin' => $element));
|
1258
|
}
|
1259
|
|
1260
|
/**
|
1261
|
* Menu callback for getting the title for the add element page.
|
1262
|
*
|
1263
|
* Uses a work-a-round for accessing the plugin name.
|
1264
|
* @see RulesUIController::config_menu()
|
1265
|
*/
|
1266
|
function rules_menu_add_element_title($array) {
|
1267
|
$plugin_name = arg($array[0]);
|
1268
|
$cache = rules_get_cache();
|
1269
|
if (isset($cache['plugin_info'][$plugin_name]['class'])) {
|
1270
|
$info = $cache['plugin_info'][$plugin_name] + array('label' => $plugin_name);
|
1271
|
$label = drupal_strtolower(drupal_substr($info['label'], 0, 1)) . drupal_substr($info['label'], 1);
|
1272
|
return t('Add a new !plugin', array('!plugin' => $label));
|
1273
|
}
|
1274
|
}
|
1275
|
|
1276
|
/**
|
1277
|
* Returns the current region for the debug log.
|
1278
|
*/
|
1279
|
function rules_debug_log_region() {
|
1280
|
// If there is no setting for the current theme use the default theme setting.
|
1281
|
global $theme_key;
|
1282
|
$theme_default = variable_get('theme_default', 'bartik');
|
1283
|
return variable_get('rules_debug_region_' . $theme_key, variable_get('rules_debug_region_' . $theme_default, 'help'));
|
1284
|
}
|
1285
|
|
1286
|
/**
|
1287
|
* Implements hook_page_build() to add the rules debug log to the page bottom.
|
1288
|
*/
|
1289
|
function rules_page_build(&$page) {
|
1290
|
// Invoke a the page redirect, in case the action has been executed.
|
1291
|
// @see rules_action_drupal_goto()
|
1292
|
if (isset($GLOBALS['_rules_action_drupal_goto_do'])) {
|
1293
|
list($url, $force) = $GLOBALS['_rules_action_drupal_goto_do'];
|
1294
|
drupal_goto($url);
|
1295
|
}
|
1296
|
|
1297
|
if (isset($_SESSION['rules_debug'])) {
|
1298
|
$region = rules_debug_log_region();
|
1299
|
foreach ($_SESSION['rules_debug'] as $log) {
|
1300
|
$page[$region]['rules_debug'][] = array(
|
1301
|
'#markup' => $log,
|
1302
|
);
|
1303
|
$page[$region]['rules_debug']['#theme_wrappers'] = array('rules_log');
|
1304
|
}
|
1305
|
unset($_SESSION['rules_debug']);
|
1306
|
}
|
1307
|
|
1308
|
if (rules_show_debug_output()) {
|
1309
|
$region = rules_debug_log_region();
|
1310
|
$page[$region]['rules_debug']['#pre_render'] = array('rules_debug_log_pre_render');
|
1311
|
}
|
1312
|
}
|
1313
|
|
1314
|
/**
|
1315
|
* Pre-render callback for the debug log, which renders and then clears it.
|
1316
|
*/
|
1317
|
function rules_debug_log_pre_render($elements) {
|
1318
|
$logger = RulesLog::logger();
|
1319
|
if ($log = $logger->render()) {
|
1320
|
$logger = RulesLog::logger();
|
1321
|
$logger->clear();
|
1322
|
$elements[] = array('#markup' => $log);
|
1323
|
$elements['#theme_wrappers'] = array('rules_log');
|
1324
|
// Log the rules log to the system log if enabled.
|
1325
|
if (variable_get('rules_debug_log', FALSE)) {
|
1326
|
watchdog('rules', 'Rules debug information: !log', array('!log' => $log), WATCHDOG_NOTICE);
|
1327
|
}
|
1328
|
}
|
1329
|
return $elements;
|
1330
|
}
|
1331
|
|
1332
|
/**
|
1333
|
* Implements hook_drupal_goto_alter().
|
1334
|
*
|
1335
|
* @see rules_action_drupal_goto()
|
1336
|
*/
|
1337
|
function rules_drupal_goto_alter(&$path, &$options, &$http_response_code) {
|
1338
|
// Invoke a the page redirect, in case the action has been executed.
|
1339
|
if (isset($GLOBALS['_rules_action_drupal_goto_do'])) {
|
1340
|
list($url, $force) = $GLOBALS['_rules_action_drupal_goto_do'];
|
1341
|
|
1342
|
if ($force || !isset($_GET['destination'])) {
|
1343
|
$url = drupal_parse_url($url);
|
1344
|
$path = $url['path'];
|
1345
|
$options['query'] = $url['query'];
|
1346
|
$options['fragment'] = $url['fragment'];
|
1347
|
$http_response_code = 302;
|
1348
|
}
|
1349
|
}
|
1350
|
}
|
1351
|
|
1352
|
/**
|
1353
|
* Returns whether the debug log should be shown.
|
1354
|
*/
|
1355
|
function rules_show_debug_output() {
|
1356
|
if (variable_get('rules_debug', FALSE) == RulesLog::INFO && user_access('access rules debug')) {
|
1357
|
return TRUE;
|
1358
|
}
|
1359
|
// For performance avoid unnecessary auto-loading of the RulesLog class.
|
1360
|
return variable_get('rules_debug', FALSE) == RulesLog::WARN && user_access('access rules debug') && class_exists('RulesLog', FALSE) && RulesLog::logger()->hasErrors();
|
1361
|
}
|
1362
|
|
1363
|
/**
|
1364
|
* Implements hook_exit().
|
1365
|
*/
|
1366
|
function rules_exit() {
|
1367
|
// Bail out if this is cached request and modules are not loaded.
|
1368
|
if (!module_exists('rules') || !module_exists('user')) {
|
1369
|
return;
|
1370
|
}
|
1371
|
if (rules_show_debug_output()) {
|
1372
|
if ($log = RulesLog::logger()->render()) {
|
1373
|
// Keep the log in the session so we can show it on the next page.
|
1374
|
$_SESSION['rules_debug'][] = $log;
|
1375
|
}
|
1376
|
}
|
1377
|
// Log the rules log to the system log if enabled.
|
1378
|
if (variable_get('rules_debug_log', FALSE) && $log = RulesLog::logger()->render()) {
|
1379
|
watchdog('rules', 'Rules debug information: !log', array('!log' => $log), WATCHDOG_NOTICE);
|
1380
|
}
|
1381
|
}
|
1382
|
|
1383
|
/**
|
1384
|
* Implements hook_element_info().
|
1385
|
*/
|
1386
|
function rules_element_info() {
|
1387
|
// A duration form element for rules. Needs ui.forms.inc included.
|
1388
|
$types['rules_duration'] = array(
|
1389
|
'#input' => TRUE,
|
1390
|
'#tree' => TRUE,
|
1391
|
'#default_value' => 0,
|
1392
|
'#value_callback' => 'rules_ui_element_duration_value',
|
1393
|
'#process' => array('rules_ui_element_duration_process', 'ajax_process_form'),
|
1394
|
'#after_build' => array('rules_ui_element_duration_after_build'),
|
1395
|
'#pre_render' => array('form_pre_render_conditional_form_element'),
|
1396
|
);
|
1397
|
$types['rules_data_selection'] = array(
|
1398
|
'#input' => TRUE,
|
1399
|
'#pre_render' => array('form_pre_render_conditional_form_element'),
|
1400
|
'#process' => array('rules_data_selection_process', 'ajax_process_form'),
|
1401
|
'#theme' => 'rules_autocomplete',
|
1402
|
);
|
1403
|
return $types;
|
1404
|
}
|
1405
|
|
1406
|
/**
|
1407
|
* Implements hook_modules_enabled().
|
1408
|
*/
|
1409
|
function rules_modules_enabled($modules) {
|
1410
|
// Re-enable Rules configurations that are dirty, because they require one of
|
1411
|
// the enabled the modules.
|
1412
|
$query = db_select('rules_dependencies', 'rd');
|
1413
|
$query->join('rules_config', 'rc', 'rd.id = rc.id');
|
1414
|
$query->fields('rd', array('id'))
|
1415
|
->condition('rd.module', $modules, 'IN')
|
1416
|
->condition('rc.dirty', 1);
|
1417
|
$ids = $query->execute()->fetchCol();
|
1418
|
|
1419
|
// If there are some configurations that might work again, re-check all dirty
|
1420
|
// configurations as others might work again too, e.g. consider a rule that is
|
1421
|
// dirty because it requires a dirty component.
|
1422
|
if ($ids) {
|
1423
|
$rules_configs = rules_config_load_multiple(FALSE, array('dirty' => 1));
|
1424
|
foreach ($rules_configs as $rules_config) {
|
1425
|
try {
|
1426
|
$rules_config->integrityCheck();
|
1427
|
// If no exceptions were thrown we can set the configuration back to OK.
|
1428
|
db_update('rules_config')
|
1429
|
->fields(array('dirty' => 0))
|
1430
|
->condition('id', $rules_config->id)
|
1431
|
->execute();
|
1432
|
if ($rules_config->active) {
|
1433
|
drupal_set_message(t('All dependencies for the Rules configuration %config are met again, so it has been re-activated.', array('%config' => $rules_config->label())));
|
1434
|
}
|
1435
|
}
|
1436
|
catch (RulesIntegrityException $e) {
|
1437
|
// The rule is still dirty, so do nothing.
|
1438
|
}
|
1439
|
}
|
1440
|
}
|
1441
|
rules_clear_cache();
|
1442
|
}
|
1443
|
|
1444
|
/**
|
1445
|
* Implements hook_modules_disabled().
|
1446
|
*/
|
1447
|
function rules_modules_disabled($modules) {
|
1448
|
// Disable Rules configurations that depend on one of the disabled modules.
|
1449
|
$query = db_select('rules_dependencies', 'rd');
|
1450
|
$query->join('rules_config', 'rc', 'rd.id = rc.id');
|
1451
|
$query->fields('rd', array('id'))
|
1452
|
->distinct()
|
1453
|
->condition('rd.module', $modules, 'IN')
|
1454
|
->condition('rc.dirty', 0);
|
1455
|
$ids = $query->execute()->fetchCol();
|
1456
|
|
1457
|
if (!empty($ids)) {
|
1458
|
db_update('rules_config')
|
1459
|
->fields(array('dirty' => 1))
|
1460
|
->condition('id', $ids, 'IN')
|
1461
|
->execute();
|
1462
|
// Tell the user about enabled rules that have been marked as dirty.
|
1463
|
$count = db_select('rules_config', 'r')
|
1464
|
->fields('r')
|
1465
|
->condition('id', $ids, 'IN')
|
1466
|
->condition('active', 1)
|
1467
|
->execute()->rowCount();
|
1468
|
if ($count > 0) {
|
1469
|
$message = format_plural($count,
|
1470
|
'1 Rules configuration requires some of the disabled modules to function and cannot be executed any more.',
|
1471
|
'@count Rules configuration require some of the disabled modules to function and cannot be executed any more.'
|
1472
|
);
|
1473
|
drupal_set_message($message, 'warning');
|
1474
|
}
|
1475
|
}
|
1476
|
rules_clear_cache();
|
1477
|
}
|
1478
|
|
1479
|
/**
|
1480
|
* Access callback for dealing with Rules configurations.
|
1481
|
*
|
1482
|
* @see entity_access()
|
1483
|
*/
|
1484
|
function rules_config_access($op, $rules_config = NULL, $account = NULL) {
|
1485
|
if (user_access('bypass rules access', $account)) {
|
1486
|
return TRUE;
|
1487
|
}
|
1488
|
// Allow modules to grant / deny access.
|
1489
|
$access = module_invoke_all('rules_config_access', $op, $rules_config, $account);
|
1490
|
|
1491
|
// Only grant access if at least one module granted access and no one denied
|
1492
|
// access.
|
1493
|
if (in_array(FALSE, $access, TRUE)) {
|
1494
|
return FALSE;
|
1495
|
}
|
1496
|
elseif (in_array(TRUE, $access, TRUE)) {
|
1497
|
return TRUE;
|
1498
|
}
|
1499
|
return FALSE;
|
1500
|
}
|
1501
|
|
1502
|
/**
|
1503
|
* Implements hook_rules_config_access().
|
1504
|
*/
|
1505
|
function rules_rules_config_access($op, $rules_config = NULL, $account = NULL) {
|
1506
|
// Instead of returning FALSE return nothing, so others still can grant
|
1507
|
// access.
|
1508
|
if (!isset($rules_config) || (isset($account) && $account->uid != $GLOBALS['user']->uid)) {
|
1509
|
return;
|
1510
|
}
|
1511
|
if (user_access('administer rules', $account) && ($op == 'view' || $rules_config->access())) {
|
1512
|
return TRUE;
|
1513
|
}
|
1514
|
}
|
1515
|
|
1516
|
/**
|
1517
|
* Implements hook_menu().
|
1518
|
*/
|
1519
|
function rules_menu() {
|
1520
|
$items['admin/config/workflow/rules/upgrade'] = array(
|
1521
|
'title' => 'Upgrade',
|
1522
|
'page callback' => 'drupal_get_form',
|
1523
|
'page arguments' => array('rules_upgrade_form'),
|
1524
|
'access arguments' => array('administer rules'),
|
1525
|
'file' => 'includes/rules.upgrade.inc',
|
1526
|
'file path' => drupal_get_path('module', 'rules'),
|
1527
|
'type' => MENU_CALLBACK,
|
1528
|
);
|
1529
|
$items['admin/config/workflow/rules/upgrade/clear'] = array(
|
1530
|
'title' => 'Clear',
|
1531
|
'page callback' => 'drupal_get_form',
|
1532
|
'page arguments' => array('rules_upgrade_confirm_clear_form'),
|
1533
|
'access arguments' => array('administer rules'),
|
1534
|
'file' => 'includes/rules.upgrade.inc',
|
1535
|
'file path' => drupal_get_path('module', 'rules'),
|
1536
|
'type' => MENU_CALLBACK,
|
1537
|
);
|
1538
|
$items['admin/config/workflow/rules/autocomplete_tags'] = array(
|
1539
|
'title' => 'Rules tags autocomplete',
|
1540
|
'page callback' => 'rules_autocomplete_tags',
|
1541
|
'page arguments' => array(5),
|
1542
|
'access arguments' => array('administer rules'),
|
1543
|
'file' => 'ui/ui.forms.inc',
|
1544
|
'type' => MENU_CALLBACK,
|
1545
|
);
|
1546
|
return $items;
|
1547
|
}
|
1548
|
|
1549
|
/**
|
1550
|
* Helper function to keep track of external documentation pages for Rules.
|
1551
|
*
|
1552
|
* @param $topic
|
1553
|
* The topic key for used for identifying help pages.
|
1554
|
*
|
1555
|
* @return
|
1556
|
* Either a URL for the given page, or the full list of external help pages.
|
1557
|
*/
|
1558
|
function rules_external_help($topic = NULL) {
|
1559
|
$help = array(
|
1560
|
'rules' => 'http://drupal.org/node/298480',
|
1561
|
'terminology' => 'http://drupal.org/node/1299990',
|
1562
|
'condition-components' => 'http://drupal.org/node/1300034',
|
1563
|
'data-selection' => 'http://drupal.org/node/1300042',
|
1564
|
'chained-tokens' => 'http://drupal.org/node/1300042',
|
1565
|
'loops' => 'http://drupal.org/node/1300058',
|
1566
|
'components' => 'http://drupal.org/node/1300024',
|
1567
|
'component-types' => 'http://drupal.org/node/1300024',
|
1568
|
'variables' => 'http://drupal.org/node/1300024',
|
1569
|
'scheduler' => 'http://drupal.org/node/1300068',
|
1570
|
'coding' => 'http://drupal.org/node/878720',
|
1571
|
);
|
1572
|
|
1573
|
if (isset($topic)) {
|
1574
|
return isset($help[$topic]) ? $help[$topic] : FALSE;
|
1575
|
}
|
1576
|
return $help;
|
1577
|
}
|
1578
|
|
1579
|
/**
|
1580
|
* Implements hook_help().
|
1581
|
*/
|
1582
|
function rules_help($path, $arg) {
|
1583
|
// Only enable the help if the admin module is active.
|
1584
|
if ($path == 'admin/help#rules' && module_exists('rules_admin')) {
|
1585
|
|
1586
|
$output['header'] = array(
|
1587
|
'#markup' => t('Rules documentation is kept online. Please use the links below for more information about Rules. Feel free to contribute to improving the online documentation!'),
|
1588
|
);
|
1589
|
// Build a list of essential Rules help pages, formatted as a bullet list.
|
1590
|
$link_list['rules'] = l(t('Rules introduction'), rules_external_help('rules'));
|
1591
|
$link_list['terminology'] = l(t('Rules terminology'), rules_external_help('terminology'));
|
1592
|
$link_list['scheduler'] = l(t('Rules Scheduler'), rules_external_help('scheduler'));
|
1593
|
$link_list['coding'] = l(t('Coding for Rules'), rules_external_help('coding'));
|
1594
|
|
1595
|
$output['topic-list'] = array(
|
1596
|
'#markup' => theme('item_list', array('items' => $link_list)),
|
1597
|
);
|
1598
|
return render($output);
|
1599
|
}
|
1600
|
}
|
1601
|
|
1602
|
/**
|
1603
|
* Implements hook_token_info().
|
1604
|
*/
|
1605
|
function rules_token_info() {
|
1606
|
$cache = rules_get_cache();
|
1607
|
$data_info = $cache['data_info'];
|
1608
|
|
1609
|
$types = array('text', 'integer', 'uri', 'token', 'decimal', 'date', 'duration');
|
1610
|
|
1611
|
foreach ($types as $type) {
|
1612
|
$token_type = $data_info[$type]['token type'];
|
1613
|
|
1614
|
$token_info['types'][$token_type] = array(
|
1615
|
'name' => $data_info[$type]['label'],
|
1616
|
'description' => t('Tokens related to %label Rules variables.', array('%label' => $data_info[$type]['label'])),
|
1617
|
'needs-data' => $token_type,
|
1618
|
);
|
1619
|
$token_info['tokens'][$token_type]['value'] = array(
|
1620
|
'name' => t("Value"),
|
1621
|
'description' => t('The value of the variable.'),
|
1622
|
);
|
1623
|
}
|
1624
|
return $token_info;
|
1625
|
}
|
1626
|
|
1627
|
/**
|
1628
|
* Implements hook_tokens().
|
1629
|
*/
|
1630
|
function rules_tokens($type, $tokens, $data, $options = array()) {
|
1631
|
// Handle replacements of primitive variable types.
|
1632
|
if (substr($type, 0, 6) == 'rules_' && !empty($data[$type])) {
|
1633
|
// Leverage entity tokens token processor by passing on as struct.
|
1634
|
$info['property info']['value'] = array(
|
1635
|
'type' => substr($type, 6),
|
1636
|
'label' => '',
|
1637
|
);
|
1638
|
// Entity tokens uses metadata wrappers as values for 'struct' types.
|
1639
|
$wrapper = entity_metadata_wrapper('struct', array('value' => $data[$type]), $info);
|
1640
|
return entity_token_tokens('struct', $tokens, array('struct' => $wrapper), $options);
|
1641
|
}
|
1642
|
}
|
1643
|
|
1644
|
/**
|
1645
|
* Helper function that retrieves a metadata wrapper with all properties.
|
1646
|
*
|
1647
|
* Note that without this helper, bundle-specific properties aren't added.
|
1648
|
*/
|
1649
|
function rules_get_entity_metadata_wrapper_all_properties(RulesAbstractPlugin $element) {
|
1650
|
return entity_metadata_wrapper($element->settings['type'], NULL, array(
|
1651
|
'property info alter' => 'rules_entity_metadata_wrapper_all_properties_callback',
|
1652
|
));
|
1653
|
}
|
1654
|
|
1655
|
/**
|
1656
|
* Callback that returns a metadata wrapper with all properties.
|
1657
|
*/
|
1658
|
function rules_entity_metadata_wrapper_all_properties_callback(EntityMetadataWrapper $wrapper, $property_info) {
|
1659
|
$info = $wrapper->info();
|
1660
|
$properties = entity_get_all_property_info($info['type']);
|
1661
|
$property_info['properties'] += $properties;
|
1662
|
return $property_info;
|
1663
|
}
|
1664
|
|
1665
|
/**
|
1666
|
* Helper to enable or disable the invocation of rules events.
|
1667
|
*
|
1668
|
* Rules invocation is disabled by default, such that Rules does not operate
|
1669
|
* when Drupal is not fully bootstrapped. It gets enabled in rules_init() and
|
1670
|
* rules_enable().
|
1671
|
*
|
1672
|
* @param bool|NULL $enable
|
1673
|
* NULL to leave the setting as is and TRUE / FALSE to change the behaviour.
|
1674
|
*
|
1675
|
* @return bool
|
1676
|
* Whether the rules invocation is enabled or disabled.
|
1677
|
*/
|
1678
|
function rules_event_invocation_enabled($enable = NULL) {
|
1679
|
static $invocation_enabled = FALSE;
|
1680
|
if (isset($enable)) {
|
1681
|
$invocation_enabled = (bool) $enable;
|
1682
|
}
|
1683
|
// Disable invocation if configured or if site runs in maintenance mode.
|
1684
|
return $invocation_enabled && !defined('MAINTENANCE_MODE');
|
1685
|
}
|