installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/lib/Google/Model.php

@@ -0,0 +1,281 @@
+<?php
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * This class defines attributes, valid values, and usage which is generated
+ * from a given json schema.
+ * http://tools.ietf.org/html/draft-zyp-json-schema-03#section-5
+ *
+ * @author Chirag Shah <chirags@google.com>
+ *
+ */
+class W3TCG_Google_Model implements ArrayAccess
+{
+  protected $internal_gapi_mappings = array();
+  protected $modelData = array();
+  protected $processed = array();
+
+  /**
+   * Polymorphic - accepts a variable number of arguments dependent
+   * on the type of the model subclass.
+   */
+  final public function __construct()
+  {
+    if (func_num_args() == 1 && is_array(func_get_arg(0))) {
+      // Initialize the model with the array's contents.
+      $array = func_get_arg(0);
+      $this->mapTypes($array);
+    }
+    $this->gapiInit();
+  }
+
+  /**
+   * Getter that handles passthrough access to the data array, and lazy object creation.
+   * @param string $key Property name.
+   * @return mixed The value if any, or null.
+   */
+  public function __get($key)
+  {
+    $keyTypeName = $this->keyType($key);
+    $keyDataType = $this->dataType($key);
+    if (isset($this->$keyTypeName) && !isset($this->processed[$key])) {
+      if (isset($this->modelData[$key])) {
+        $val = $this->modelData[$key];
+      } else if (isset($this->$keyDataType) &&
+          ($this->$keyDataType == 'array' || $this->$keyDataType == 'map')) {
+        $val = array();
+      } else {
+        $val = null;
+      }
+
+      if ($this->isAssociativeArray($val)) {
+        if (isset($this->$keyDataType) && 'map' == $this->$keyDataType) {
+          foreach ($val as $arrayKey => $arrayItem) {
+              $this->modelData[$key][$arrayKey] =
+                $this->createObjectFromName($keyTypeName, $arrayItem);
+          }
+        } else {
+          $this->modelData[$key] = $this->createObjectFromName($keyTypeName, $val);
+        }
+      } else if (is_array($val)) {
+        $arrayObject = array();
+        foreach ($val as $arrayIndex => $arrayItem) {
+          $arrayObject[$arrayIndex] =
+            $this->createObjectFromName($keyTypeName, $arrayItem);
+        }
+        $this->modelData[$key] = $arrayObject;
+      }
+      $this->processed[$key] = true;
+    }
+
+    return isset($this->modelData[$key]) ? $this->modelData[$key] : null;
+  }
+
+  /**
+   * Initialize this object's properties from an array.
+   *
+   * @param array $array Used to seed this object's properties.
+   * @return void
+   */
+  protected function mapTypes($array)
+  {
+    // Hard initilise simple types, lazy load more complex ones.
+    foreach ($array as $key => $val) {
+      if ( !property_exists($this, $this->keyType($key)) &&
+        property_exists($this, $key)) {
+          $this->$key = $val;
+          unset($array[$key]);
+      } elseif (property_exists($this, $camelKey = W3TCG_Google_Utils::camelCase($key))) {
+          // For backwards compatibility, this checks if property exists as camelCase, leaving
+          // it in array as snake_case
+          $this->$camelKey = $val;
+      }
+    }
+    $this->modelData = $array;
+  }
+
+  /**
+   * Blank initialiser to be used in subclasses to do  post-construction initialisation - this
+   * avoids the need for subclasses to have to implement the variadics handling in their
+   * constructors.
+   */
+  protected function gapiInit()
+  {
+    return;
+  }
+
+  /**
+   * Create a simplified object suitable for straightforward
+   * conversion to JSON. This is relatively expensive
+   * due to the usage of reflection, but shouldn't be called
+   * a whole lot, and is the most straightforward way to filter.
+   */
+  public function toSimpleObject()
+  {
+    $object = new stdClass();
+
+    // Process all other data.
+    foreach ($this->modelData as $key => $val) {
+      $result = $this->getSimpleValue($val);
+      if ($result !== null) {
+        $object->$key = $result;
+      }
+    }
+
+    // Process all public properties.
+    $reflect = new ReflectionObject($this);
+    $props = $reflect->getProperties(ReflectionProperty::IS_PUBLIC);
+    foreach ($props as $member) {
+      $name = $member->getName();
+      $result = $this->getSimpleValue($this->$name);
+      if ($result !== null) {
+        $name = $this->getMappedName($name);
+        $object->$name = $result;
+      }
+    }
+
+    return $object;
+  }
+
+  /**
+   * Handle different types of values, primarily
+   * other objects and map and array data types.
+   */
+  private function getSimpleValue($value)
+  {
+    if ($value instanceof W3TCG_Google_Model) {
+      return $value->toSimpleObject();
+    } else if (is_array($value)) {
+      $return = array();
+      foreach ($value as $key => $a_value) {
+        $a_value = $this->getSimpleValue($a_value);
+        if ($a_value !== null) {
+          $key = $this->getMappedName($key);
+          $return[$key] = $a_value;
+        }
+      }
+      return $return;
+    }
+    return $value;
+  }
+
+  /**
+   * If there is an internal name mapping, use that.
+   */
+  private function getMappedName($key)
+  {
+    if (isset($this->internal_gapi_mappings) &&
+        isset($this->internal_gapi_mappings[$key])) {
+      $key = $this->internal_gapi_mappings[$key];
+    }
+    return $key;
+  }
+
+  /**
+   * Returns true only if the array is associative.
+   * @param array $array
+   * @return bool True if the array is associative.
+   */
+  protected function isAssociativeArray($array)
+  {
+    if (!is_array($array)) {
+      return false;
+    }
+    $keys = array_keys($array);
+    foreach ($keys as $key) {
+      if (is_string($key)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Given a variable name, discover its type.
+   *
+   * @param $name
+   * @param $item
+   * @return object The object from the item.
+   */
+  private function createObjectFromName($name, $item)
+  {
+    $type = $this->$name;
+    return new $type($item);
+  }
+
+  /**
+   * Verify if $obj is an array.
+   * @throws W3TCG_Google_Exception Thrown if $obj isn't an array.
+   * @param array $obj Items that should be validated.
+   * @param string $method Method expecting an array as an argument.
+   */
+  public function assertIsArray($obj, $method)
+  {
+    if ($obj && !is_array($obj)) {
+      throw new W3TCG_Google_Exception(
+          "Incorrect parameter type passed to $method(). Expected an array."
+      );
+    }
+  }
+
+  public function offsetExists($offset)
+  {
+    return isset($this->$offset) || isset($this->modelData[$offset]);
+  }
+
+  public function offsetGet($offset)
+  {
+    return isset($this->$offset) ?
+        $this->$offset :
+        $this->__get($offset);
+  }
+
+  public function offsetSet($offset, $value)
+  {
+    if (property_exists($this, $offset)) {
+      $this->$offset = $value;
+    } else {
+      $this->modelData[$offset] = $value;
+      $this->processed[$offset] = true;
+    }
+  }
+
+  public function offsetUnset($offset)
+  {
+    unset($this->modelData[$offset]);
+  }
+
+  protected function keyType($key)
+  {
+    return $key . "Type";
+  }
+
+  protected function dataType($key)
+  {
+    return $key . "DataType";
+  }
+
+  public function __isset($key)
+  {
+    return isset($this->modelData[$key]);
+  }
+
+  public function __unset($key)
+  {
+    unset($this->modelData[$key]);
+  }
+}