Add upstream plugins

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/all-in-one-event-calendar/lib/query/helper.php

@@ -0,0 +1,172 @@
+<?php
+
+/**
+ * Query helper.
+ *
+ * @author     Time.ly Network Inc.
+ * @since      2.0
+ *
+ * @package    AI1EC
+ * @subpackage AI1EC.query
+ */
+class Ai1ec_Query_Helper {
+
+    /**
+     * @var WP_Query Instance of WP_Query object
+     */
+    protected $_query    = null;
+
+    /**
+     * @var WP_Rewrite Instance of WP_Rewrite object
+     */
+    protected $_rewrite = null;
+
+    /**
+     * @var array List of parsed query variables
+     */
+    protected $_query_vars = array();
+
+    /**
+     * Initiate object entities
+     *
+     * @param object $query_object     Instance of query object [optional=WP_Query]
+     * @param object $rewrite_object Instance of query object [optional=WP_Rewrite]
+     *
+     * @return void Constructor does not return
+     */
+    public function __construct(
+        $query_object   = null,
+        $rewrite_object = null
+    ) {
+        if ( null === $query_object ) {
+            global $wp_query;
+            $query_object = $wp_query;
+        }
+        $this->_query = $query_object;
+        if ( null === $rewrite_object ) {
+            global $wp_rewrite;
+            $rewrite_object = $wp_rewrite;
+        }
+        $this->_rewrite = $rewrite_object;
+        $this->init_vars();
+    }
+
+    /**
+     * Query variable setter/getter
+     *
+     * @param string $name    Name of variable to query
+     * @param mixed     $value Value to set [optional=null/act as getter]
+     *
+     * @return mixed Variable, null if not present, true in setter mode
+     */
+    public function variable( $name, $value = null ) {
+        if ( null !== $value ) {
+            $this->_query_vars[$name] = $value;
+            return true;
+        }
+        if ( ! isset( $this->_query_vars[$name] ) ) {
+            return null;
+        }
+        return $this->_query_vars[$name];
+    }
+
+    /**
+     * Initiate (populate) query variables list. Two different url structures are supported.
+     *
+     *
+     */
+    public function init_vars( $query = null ) {
+        foreach ( $_REQUEST as $key => $value ) {
+            $this->variable( $key, $value );
+        }
+        if ( null === $query ) {
+            $query = isset( $_SERVER['REQUEST_URI'] ) ? $_SERVER['REQUEST_URI'] : '';
+        }
+
+        $particles = explode( '/', trim( $query, '/' ) );
+        $imported  = 0;
+        foreach ( $particles as $element ) {
+            if ( $this->_add_serialized_var( $element ) ) {
+                ++$imported;
+            }
+        }
+        if ( isset( $_REQUEST['ai1ec'] ) ) {
+            $particles = explode( '|', trim( $_REQUEST['ai1ec'], '|' ) );
+            foreach ( $particles as $element ) {
+                if ( $this->_add_serialized_var( $element ) ) {
+                    ++$imported;
+                }
+            }
+        }
+        return $imported;
+    }
+
+    /**
+     * Check if rewrite module is enabled
+     */
+    public function rewrite_enabled() {
+        return $this->_rewrite->using_mod_rewrite_permalinks();
+    }
+
+    /**
+     * register_rule method
+     *
+     * Register rewrite rule with framework
+     *
+     * @param string $regexp   Expression to register
+     * @param string $landing  URL to be executed on match
+     * @param int    $priority Numeric rule priority - higher means sooner check
+     *
+     * @return string Regexp rule registered with framework
+     */
+    public function register_rule( $regexp, $landing, $priority = NULL ) {
+        if ( NULL === $priority ) {
+            $priority = 1;
+        }
+        $priority = ( $priority > 0 ) ? 'top' : 'bottom';
+        $regexp      = $this->_inject_route_groups( $regexp );
+        $existing = $this->_rewrite->wp_rewrite_rules();
+        if ( ! isset( $existing[$regexp] ) ) {
+            $this->_rewrite->add_rule(
+                $regexp,
+                $landing,
+                $priority
+            );
+            $this->_rewrite->flush_rules();
+        }
+        return $regexp;
+    }
+
+    /**
+     * Add serialized (key:value) value to query arguments list
+     */
+    protected function _add_serialized_var( $element ) {
+        if ( false === strpos( $element, Ai1ec_Uri::DIRECTION_SEPARATOR ) ) {
+            return false;
+        }
+        list( $key, $value ) = explode( Ai1ec_Uri::DIRECTION_SEPARATOR, $element, 2 );
+        $this->variable( $key, $value );
+        return true;
+    }
+
+    /**
+     * Adjust regexp groupping identifiers using WP_Rewrite object
+     */
+    protected function _inject_route_groups( $query ) {
+        $elements = preg_split(
+            '/\$(\d+)/',
+            $query,
+            null,
+            PREG_SPLIT_DELIM_CAPTURE
+        );
+        $result = '';
+        foreach ( $elements as $key => $value ) {
+            if ( $key % 2 == 1 ) {
+                $value = $this->_rewrite->preg_index($value);
+            }
+            $result .= $value;
+        }
+        return $result;
+    }
+
+}