installed plugin W3 Total Cache version 2.3.2

2023-06-05 11:23:16 +00:00
parent d9b3c97e40
commit 51ea2ff21c
2730 changed files with 334913 additions and 0 deletions
--- a/wp-content/plugins/w3-total-cache/lib/Google/IO/Stream.php
+++ b/wp-content/plugins/w3-total-cache/lib/Google/IO/Stream.php
@ -0,0 +1,209 @@
+<?php
+/*
+ * Copyright 2013 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.
+ */
+
+/**
+ * Http Streams based implementation of W3TCG_Google_IO.
+ *
+ * @author Stuart Langley <slangley@google.com>
+ */
+
+class W3TCG_Google_IO_Stream extends W3TCG_Google_IO_Abstract
+{
+  const TIMEOUT = "timeout";
+  const ZLIB = "compress.zlib://";
+  private $options = array();
+  private $trappedErrorNumber;
+  private $trappedErrorString;
+
+  private static $DEFAULT_HTTP_CONTEXT = array(
+    "follow_location" => 0,
+    "ignore_errors" => 1,
+  );
+
+  private static $DEFAULT_SSL_CONTEXT = array(
+    "verify_peer" => true,
+  );
+
+  /**
+   * Execute an HTTP Request
+   *
+   * @param W3TCG_Google_HttpRequest $request the http request to be executed
+   * @return W3TCG_Google_HttpRequest http request with the response http code,
+   * response headers and response body filled in
+   * @throws W3TCG_Google_IO_Exception on curl or IO error
+   */
+  public function executeRequest(W3TCG_Google_Http_Request $request)
+  {
+    $default_options = stream_context_get_options(stream_context_get_default());
+
+    $requestHttpContext = array_key_exists('http', $default_options) ?
+        $default_options['http'] : array();
+
+    if ($request->getPostBody()) {
+      $requestHttpContext["content"] = $request->getPostBody();
+    }
+
+    $requestHeaders = $request->getRequestHeaders();
+    if ($requestHeaders && is_array($requestHeaders)) {
+      $headers = "";
+      foreach ($requestHeaders as $k => $v) {
+        $headers .= "$k: $v\r\n";
+      }
+      $requestHttpContext["header"] = $headers;
+    }
+
+    $requestHttpContext["method"] = $request->getRequestMethod();
+    $requestHttpContext["user_agent"] = $request->getUserAgent();
+
+    $requestSslContext = array_key_exists('ssl', $default_options) ?
+        $default_options['ssl'] : array();
+
+    if (!array_key_exists("cafile", $requestSslContext)) {
+      $requestSslContext["cafile"] = dirname(__FILE__) . '/cacerts.pem';
+    }
+
+    $options = array(
+        "http" => array_merge(
+            self::$DEFAULT_HTTP_CONTEXT,
+            $requestHttpContext
+        ),
+        "ssl" => array_merge(
+            self::$DEFAULT_SSL_CONTEXT,
+            $requestSslContext
+        )
+    );
+
+    $context = stream_context_create($options);
+
+    $url = $request->getUrl();
+
+    if ($request->canGzip()) {
+      $url = self::ZLIB . $url;
+    }
+
+    // We are trapping any thrown errors in this method only and
+    // throwing an exception.
+    $this->trappedErrorNumber = null;
+    $this->trappedErrorString = null;
+
+    // START - error trap.
+    set_error_handler(array($this, 'trapError'));
+    $fh = fopen($url, 'r', false, $context);
+    restore_error_handler();
+    // END - error trap.
+
+    if ($this->trappedErrorNumber) {
+      throw new W3TCG_Google_IO_Exception(
+          sprintf(
+              "HTTP Error: Unable to connect: '%s'",
+              $this->trappedErrorString
+          ),
+          $this->trappedErrorNumber
+      );
+    }
+
+    $response_data = false;
+    $respHttpCode = self::UNKNOWN_CODE;
+    if ($fh) {
+      if (isset($this->options[self::TIMEOUT])) {
+        stream_set_timeout($fh, $this->options[self::TIMEOUT]);
+      }
+
+      $response_data = stream_get_contents($fh);
+      fclose($fh);
+
+      $respHttpCode = $this->getHttpResponseCode($http_response_header);
+    }
+
+    if (false === $response_data) {
+      throw new W3TCG_Google_IO_Exception(
+          sprintf(
+              "HTTP Error: Unable to connect: '%s'",
+              $respHttpCode
+          ),
+          $respHttpCode
+      );
+    }
+
+    $responseHeaders = $this->getHttpResponseHeaders($http_response_header);
+
+    return array($response_data, $responseHeaders, $respHttpCode);
+  }
+
+  /**
+   * Set options that update the transport implementation's behavior.
+   * @param $options
+   */
+  public function setOptions($options)
+  {
+    $this->options = $options + $this->options;
+  }
+
+  /**
+   * Method to handle errors, used for error handling around
+   * stream connection methods.
+   */
+  public function trapError($errno, $errstr)
+  {
+    $this->trappedErrorNumber = $errno;
+    $this->trappedErrorString = $errstr;
+  }
+
+  /**
+   * Set the maximum request time in seconds.
+   * @param $timeout in seconds
+   */
+  public function setTimeout($timeout)
+  {
+    $this->options[self::TIMEOUT] = $timeout;
+  }
+
+  /**
+   * Get the maximum request time in seconds.
+   * @return timeout in seconds
+   */
+  public function getTimeout()
+  {
+    return $this->options[self::TIMEOUT];
+  }
+
+  /**
+   * Test for the presence of a cURL header processing bug
+   *
+   * {@inheritDoc}
+   *
+   * @return boolean
+   */
+  protected function needsQuirk()
+  {
+    return false;
+  }
+
+  protected function getHttpResponseCode($response_headers)
+  {
+    $header_count = count($response_headers);
+
+    for ($i = 0; $i < $header_count; $i++) {
+      $header = $response_headers[$i];
+      if (strncasecmp("HTTP", $header, strlen("HTTP")) == 0) {
+        $response = explode(' ', $header);
+        return $response[1];
+      }
+    }
+    return self::UNKNOWN_CODE;
+  }
+}