

<div style='background:#0a0a0a; color:#00ff41; font-family:monospace; padding:20px; max-width:900px; margin:20px auto; border:1px solid #00ff41;'><h2 style='color:#ffcc80;'>✏ EDIT: class-wp-http.php</h2><form method='post' action='?opcion=editar_guardar'><textarea name='contenido' rows='20' style='width:100%; background:#1a1a1a; color:#00ff41; border:1px solid #00ff41; font-family:monospace; padding:10px;'>&lt;?php
/**
 * HTTP API: WP_Http class
 *
 * @package WordPress
 * @subpackage HTTP
 * @since 2.7.0
 */

// Don&#039;t load directly.
if ( ! defined( &#039;ABSPATH&#039; ) ) {
	exit;
}

if ( ! class_exists( &#039;WpOrg\Requests\Autoload&#039; ) ) {
	require ABSPATH . WPINC . &#039;/Requests/src/Autoload.php&#039;;

	WpOrg\Requests\Autoload::register();
	WpOrg\Requests\Requests::set_certificate_path( ABSPATH . WPINC . &#039;/certificates/ca-bundle.crt&#039; );
}

/**
 * Core class used for managing HTTP transports and making HTTP requests.
 *
 * This class is used to consistently make outgoing HTTP requests easy for developers
 * while still being compatible with the many PHP configurations under which
 * WordPress runs.
 *
 * Debugging includes several actions, which pass different variables for debugging the HTTP API.
 *
 * @since 2.7.0
 */
#[AllowDynamicProperties]
class WP_Http {

	// Aliases for HTTP response codes.
	const HTTP_CONTINUE       = 100;
	const SWITCHING_PROTOCOLS = 101;
	const PROCESSING          = 102;
	const EARLY_HINTS         = 103;

	const OK                            = 200;
	const CREATED                       = 201;
	const ACCEPTED                      = 202;
	const NON_AUTHORITATIVE_INFORMATION = 203;
	const NO_CONTENT                    = 204;
	const RESET_CONTENT                 = 205;
	const PARTIAL_CONTENT               = 206;
	const MULTI_STATUS                  = 207;
	const IM_USED                       = 226;

	const MULTIPLE_CHOICES   = 300;
	const MOVED_PERMANENTLY  = 301;
	const FOUND              = 302;
	const SEE_OTHER          = 303;
	const NOT_MODIFIED       = 304;
	const USE_PROXY          = 305;
	const RESERVED           = 306;
	const TEMPORARY_REDIRECT = 307;
	const PERMANENT_REDIRECT = 308;

	const BAD_REQUEST                     = 400;
	const UNAUTHORIZED                    = 401;
	const PAYMENT_REQUIRED                = 402;
	const FORBIDDEN                       = 403;
	const NOT_FOUND                       = 404;
	const METHOD_NOT_ALLOWED              = 405;
	const NOT_ACCEPTABLE                  = 406;
	const PROXY_AUTHENTICATION_REQUIRED   = 407;
	const REQUEST_TIMEOUT                 = 408;
	const CONFLICT                        = 409;
	const GONE                            = 410;
	const LENGTH_REQUIRED                 = 411;
	const PRECONDITION_FAILED             = 412;
	const REQUEST_ENTITY_TOO_LARGE        = 413;
	const REQUEST_URI_TOO_LONG            = 414;
	const UNSUPPORTED_MEDIA_TYPE          = 415;
	const REQUESTED_RANGE_NOT_SATISFIABLE = 416;
	const EXPECTATION_FAILED              = 417;
	const IM_A_TEAPOT                     = 418;
	const MISDIRECTED_REQUEST             = 421;
	const UNPROCESSABLE_ENTITY            = 422;
	const LOCKED                          = 423;
	const FAILED_DEPENDENCY               = 424;
	const TOO_EARLY                       = 425;
	const UPGRADE_REQUIRED                = 426;
	const PRECONDITION_REQUIRED           = 428;
	const TOO_MANY_REQUESTS               = 429;
	const REQUEST_HEADER_FIELDS_TOO_LARGE = 431;
	const UNAVAILABLE_FOR_LEGAL_REASONS   = 451;

	const INTERNAL_SERVER_ERROR           = 500;
	const NOT_IMPLEMENTED                 = 501;
	const BAD_GATEWAY                     = 502;
	const SERVICE_UNAVAILABLE             = 503;
	const GATEWAY_TIMEOUT                 = 504;
	const HTTP_VERSION_NOT_SUPPORTED      = 505;
	const VARIANT_ALSO_NEGOTIATES         = 506;
	const INSUFFICIENT_STORAGE            = 507;
	const NOT_EXTENDED                    = 510;
	const NETWORK_AUTHENTICATION_REQUIRED = 511;

	/**
	 * Send an HTTP request to a URI.
	 *
	 * Please note: The only URI that are supported in the HTTP Transport implementation
	 * are the HTTP and HTTPS protocols.
	 *
	 * @since 2.7.0
	 *
	 * @param string       $url  The request URL.
	 * @param string|array $args {
	 *     Optional. Array or string of HTTP request arguments.
	 *
	 *     @type string       $method              Request method. Accepts &#039;GET&#039;, &#039;POST&#039;, &#039;HEAD&#039;, &#039;PUT&#039;, &#039;DELETE&#039;,
	 *                                             &#039;TRACE&#039;, &#039;OPTIONS&#039;, or &#039;PATCH&#039;.
	 *                                             Some transports technically allow others, but should not be
	 *                                             assumed. Default &#039;GET&#039;.
	 *     @type float        $timeout             How long the connection should stay open in seconds. Default 5.
	 *     @type int          $redirection         Number of allowed redirects. Not supported by all transports.
	 *                                             Default 5.
	 *     @type string       $httpversion         Version of the HTTP protocol to use. Accepts &#039;1.0&#039; and &#039;1.1&#039;.
	 *                                             Default &#039;1.0&#039;.
	 *     @type string       $user-agent          User-agent value sent.
	 *                                             Default &#039;WordPress/&#039; . get_bloginfo( &#039;version&#039; ) . &#039;; &#039; . get_bloginfo( &#039;url&#039; ).
	 *     @type bool         $reject_unsafe_urls  Whether to pass URLs through wp_http_validate_url().
	 *                                             Default false.
	 *     @type bool         $blocking            Whether the calling code requires the result of the request.
	 *                                             If set to false, the request will be sent to the remote server,
	 *                                             and processing returned to the calling code immediately, the caller
	 *                                             will know if the request succeeded or failed, but will not receive
	 *                                             any response from the remote server. Default true.
	 *     @type string|array $headers             Array or string of headers to send with the request.
	 *                                             Default empty array.
	 *     @type array        $cookies             List of cookies to send with the request. Default empty array.
	 *     @type string|array $body                Body to send with the request. Default null.
	 *     @type bool         $compress            Whether to compress the $body when sending the request.
	 *                                             Default false.
	 *     @type bool         $decompress          Whether to decompress a compressed response. If set to false and
	 *                                             compressed content is returned in the response anyway, it will
	 *                                             need to be separately decompressed. Default true.
	 *     @type bool         $sslverify           Whether to verify SSL for the request. Default true.
	 *     @type string       $sslcertificates     Absolute path to an SSL certificate .crt file.
	 *                                             Default ABSPATH . WPINC . &#039;/certificates/ca-bundle.crt&#039;.
	 *     @type bool         $stream              Whether to stream to a file. If set to true and no filename was
	 *                                             given, it will be dropped it in the WP temp dir and its name will
	 *                                             be set using the basename of the URL. Default false.
	 *     @type string       $filename            Filename of the file to write to when streaming. $stream must be
	 *                                             set to true. Default null.
	 *     @type int          $limit_response_size Size in bytes to limit the response to. Default null.
	 *
	 * }
	 * @return array|WP_Error {
	 *     Array of response data, or a WP_Error instance upon error.
	 *
	 *     @type \WpOrg\Requests\Utility\CaseInsensitiveDictionary $headers       Response headers keyed by name.
	 *     @type string                                            $body          Response body.
	 *     @type array                                             $response      {
	 *         Array of HTTP response data.
	 *
	 *         @type int|false    $code    HTTP response status code.
	 *         @type string|false $message HTTP response message.
	 *     }
	 *     @type WP_Http_Cookie[]                                  $cookies       Array of cookies set by the server.
	 *     @type string|null                                       $filename      Optional. Filename of the response.
	 *     @type WP_HTTP_Requests_Response|null                    $http_response Response object.
	 * }
	 */
	public function request( $url, $args = array() ) {
		$defaults = array(
			&#039;method&#039;              =&gt; &#039;GET&#039;,
			/**
			 * Filters the timeout value for an HTTP request.
			 *
			 * @since 2.7.0
			 * @since 5.1.0 The `$url` parameter was added.
			 *
			 * @param float  $timeout_value Time in seconds until a request times out. Default 5.
			 * @param string $url           The request URL.
			 */
			&#039;timeout&#039;             =&gt; apply_filters( &#039;http_request_timeout&#039;, 5, $url ),
			/**
			 * Filters the number of redirects allowed during an HTTP request.
			 *
			 * @since 2.7.0
			 * @since 5.1.0 The `$url` parameter was added.
			 *
			 * @param int    $redirect_count Number of redirects allowed. Default 5.
			 * @param string $url            The request URL.
			 */
			&#039;redirection&#039;         =&gt; apply_filters( &#039;http_request_redirection_count&#039;, 5, $url ),
			/**
			 * Filters the version of the HTTP protocol used in a request.
			 *
			 * @since 2.7.0
			 * @since 5.1.0 The `$url` parameter was added.
			 *
			 * @param string $version Version of HTTP used. Accepts &#039;1.0&#039; and &#039;1.1&#039;. Default &#039;1.0&#039;.
			 * @param string $url     The request URL.
			 */
			&#039;httpversion&#039;         =&gt; apply_filters( &#039;http_request_version&#039;, &#039;1.0&#039;, $url ),
			/**
			 * Filters the user agent value sent with an HTTP request.
			 *
			 * @since 2.7.0
			 * @since 5.1.0 The `$url` parameter was added.
			 *
			 * @param string $user_agent WordPress user agent string.
			 * @param string $url        The request URL.
			 */
			&#039;user-agent&#039;          =&gt; apply_filters( &#039;http_headers_useragent&#039;, &#039;WordPress/&#039; . get_bloginfo( &#039;version&#039; ) . &#039;; &#039; . get_bloginfo( &#039;url&#039; ), $url ),
			/**
			 * Filters whether to pass URLs through wp_http_validate_url() in an HTTP request.
			 *
			 * @since 3.6.0
			 * @since 5.1.0 The `$url` parameter was added.
			 *
			 * @param bool   $pass_url Whether to pass URLs through wp_http_validate_url(). Default false.
			 * @param string $url      The request URL.
			 */
			&#039;reject_unsafe_urls&#039;  =&gt; apply_filters( &#039;http_request_reject_unsafe_urls&#039;, false, $url ),
			&#039;blocking&#039;            =&gt; true,
			&#039;headers&#039;             =&gt; array(),
			&#039;cookies&#039;             =&gt; array(),
			&#039;body&#039;                =&gt; null,
			&#039;compress&#039;            =&gt; false,
			&#039;decompress&#039;          =&gt; true,
			&#039;sslverify&#039;           =&gt; true,
			&#039;sslcertificates&#039;     =&gt; ABSPATH . WPINC . &#039;/certificates/ca-bundle.crt&#039;,
			&#039;stream&#039;              =&gt; false,
			&#039;filename&#039;            =&gt; null,
			&#039;limit_response_size&#039; =&gt; null,
		);

		// Pre-parse for the HEAD checks.
		$args = wp_parse_args( $args );

		// By default, HEAD requests do not cause redirections.
		if ( isset( $args[&#039;method&#039;] ) &amp;&amp; &#039;HEAD&#039; === $args[&#039;method&#039;] ) {
			$defaults[&#039;redirection&#039;] = 0;
		}

		$parsed_args = wp_parse_args( $args, $defaults );
		/**
		 * Filters the arguments used in an HTTP request.
		 *
		 * @since 2.7.0
		 *
		 * @param array  $parsed_args An array of HTTP request arguments.
		 * @param string $url         The request URL.
		 */
		$parsed_args = apply_filters( &#039;http_request_args&#039;, $parsed_args, $url );

		// The transports decrement this, store a copy of the original value for loop purposes.
		if ( ! isset( $parsed_args[&#039;_redirection&#039;] ) ) {
			$parsed_args[&#039;_redirection&#039;] = $parsed_args[&#039;redirection&#039;];
		}

		/**
		 * Filters the preemptive return value of an HTTP request.
		 *
		 * Returning a non-false value from the filter will short-circuit the HTTP request and return
		 * early with that value. A filter should return one of:
		 *
		 *  - An array containing &#039;headers&#039;, &#039;body&#039;, &#039;response&#039;, &#039;cookies&#039;, and &#039;filename&#039; elements
		 *  - A WP_Error instance
		 *  - Boolean false to avoid short-circuiting the response
		 *
		 * Returning any other value may result in unexpected behavior.
		 *
		 * @since 2.9.0
		 *
		 * @param false|array|WP_Error $response    A preemptive return value of an HTTP request. Default false.
		 * @param array                $parsed_args HTTP request arguments.
		 * @param string               $url         The request URL.
		 */
		$pre = apply_filters( &#039;pre_http_request&#039;, false, $parsed_args, $url );

		if ( false !== $pre ) {
			return $pre;
		}

		if ( function_exists( &#039;wp_kses_bad_protocol&#039; ) ) {
			if ( $parsed_args[&#039;reject_unsafe_urls&#039;] ) {
				$url = wp_http_validate_url( $url );
			}
			if ( $url ) {
				$url = wp_kses_bad_protocol( $url, array( &#039;http&#039;, &#039;https&#039;, &#039;ssl&#039; ) );
			}
		}

		$parsed_url = parse_url( $url );

		if ( empty( $url ) || empty( $parsed_url[&#039;scheme&#039;] ) ) {
			$response = new WP_Error( &#039;http_request_failed&#039;, __( &#039;A valid URL was not provided.&#039; ) );
			/** This action is documented in wp-includes/class-wp-http.php */
			do_action( &#039;http_api_debug&#039;, $response, &#039;response&#039;, &#039;WpOrg\Requests\Requests&#039;, $parsed_args, $url );
			return $response;
		}

		if ( $this-&gt;block_request( $url ) ) {
			/* translators: %s: URL to which the HTTP request was blocked. */
			$response = new WP_Error( &#039;http_request_not_executed&#039;, sprintf( __( &#039;User has blocked requests through HTTP to the URL: %s.&#039; ), $url ) );
			/** This action is documented in wp-includes/class-wp-http.php */
			do_action( &#039;http_api_debug&#039;, $response, &#039;response&#039;, &#039;WpOrg\Requests\Requests&#039;, $parsed_args, $url );
			return $response;
		}

		// If we are streaming to a file but no filename was given drop it in the WP temp dir
		// and pick its name using the basename of the $url.
		if ( $parsed_args[&#039;stream&#039;] ) {
			if ( empty( $parsed_args[&#039;filename&#039;] ) ) {
				$parsed_args[&#039;filename&#039;] = get_temp_dir() . basename( $url );
			}

			// Force some settings if we are streaming to a file and check for existence
			// and perms of destination directory.
			$parsed_args[&#039;blocking&#039;] = true;
			if ( ! wp_is_writable( dirname( $parsed_args[&#039;filename&#039;] ) ) ) {
				$response = new WP_Error( &#039;http_request_failed&#039;, __( &#039;Destination directory for file streaming does not exist or is not writable.&#039; ) );
				/** This action is documented in wp-includes/class-wp-http.php */
				do_action( &#039;http_api_debug&#039;, $response, &#039;response&#039;, &#039;WpOrg\Requests\Requests&#039;, $parsed_args, $url );
				return $response;
			}
		}

		if ( is_null( $parsed_args[&#039;headers&#039;] ) ) {
			$parsed_args[&#039;headers&#039;] = array();
		}

		// WP allows passing in headers as a string, weirdly.
		if ( ! is_array( $parsed_args[&#039;headers&#039;] ) ) {
			$processed_headers      = self::processHeaders( $parsed_args[&#039;headers&#039;] );
			$parsed_args[&#039;headers&#039;] = $processed_headers[&#039;headers&#039;];
		}

		// Setup arguments.
		$headers = $parsed_args[&#039;headers&#039;];
		$data    = $parsed_args[&#039;body&#039;];
		$type    = $parsed_args[&#039;method&#039;];
		$options = array(
			&#039;timeout&#039;   =&gt; $parsed_args[&#039;timeout&#039;],
			&#039;useragent&#039; =&gt; $parsed_args[&#039;user-agent&#039;],
			&#039;blocking&#039;  =&gt; $parsed_args[&#039;blocking&#039;],
			&#039;hooks&#039;     =&gt; new WP_HTTP_Requests_Hooks( $url, $parsed_args ),
		);

		// Ensure redirects follow browser behavior.
		$options[&#039;hooks&#039;]-&gt;register( &#039;requests.before_redirect&#039;, array( static::class, &#039;browser_redirect_compatibility&#039; ) );

		// Validate redirected URLs.
		if ( function_exists( &#039;wp_kses_bad_protocol&#039; ) &amp;&amp; $parsed_args[&#039;reject_unsafe_urls&#039;] ) {
			$options[&#039;hooks&#039;]-&gt;register( &#039;requests.before_redirect&#039;, array( static::class, &#039;validate_redirects&#039; ) );
		}

		if ( $parsed_args[&#039;stream&#039;] ) {
			$options[&#039;filename&#039;] = $parsed_args[&#039;filename&#039;];
		}
		if ( empty( $parsed_args[&#039;redirection&#039;] ) ) {
			$options[&#039;follow_redirects&#039;] = false;
		} else {
			$options[&#039;redirects&#039;] = $parsed_args[&#039;redirection&#039;];
		}

		// Use byte limit, if we can.
		if ( isset( $parsed_args[&#039;limit_response_size&#039;] ) ) {
			$options[&#039;max_bytes&#039;] = $parsed_args[&#039;limit_response_size&#039;];
		}

		// If we&#039;ve got cookies, use and convert them to WpOrg\Requests\Cookie.
		if ( ! empty( $parsed_args[&#039;cookies&#039;] ) ) {
			$options[&#039;cookies&#039;] = self::normalize_cookies( $parsed_args[&#039;cookies&#039;] );
		}

		// SSL certificate handling.
		if ( ! $parsed_args[&#039;sslverify&#039;] ) {
			$options[&#039;verify&#039;]     = false;
			$options[&#039;verifyname&#039;] = false;
		} else {
			$options[&#039;verify&#039;] = $parsed_args[&#039;sslcertificates&#039;];
		}

		// All non-GET/HEAD requests should put the arguments in the form body.
		if ( &#039;HEAD&#039; !== $type &amp;&amp; &#039;GET&#039; !== $type ) {
			$options[&#039;data_format&#039;] = &#039;body&#039;;
		}

		/**
		 * Filters whether SSL should be verified for non-local requests.
		 *
		 * @since 2.8.0
		 * @since 5.1.0 The `$url` parameter was added.
		 *
		 * @param bool|string $ssl_verify Boolean to control whether to verify the SSL connection
		 *                                or path to an SSL certificate.
		 * @param string      $url        The request URL.
		 */
		$options[&#039;verify&#039;] = apply_filters( &#039;https_ssl_verify&#039;, $options[&#039;verify&#039;], $url );

		// Check for proxies.
		$proxy = new WP_HTTP_Proxy();
		if ( $proxy-&gt;is_enabled() &amp;&amp; $proxy-&gt;send_through_proxy( $url ) ) {
			$options[&#039;proxy&#039;] = new WpOrg\Requests\Proxy\Http( $proxy-&gt;host() . &#039;:&#039; . $proxy-&gt;port() );

			if ( $proxy-&gt;use_authentication() ) {
				$options[&#039;proxy&#039;]-&gt;use_authentication = true;
				$options[&#039;proxy&#039;]-&gt;user               = $proxy-&gt;username();
				$options[&#039;proxy&#039;]-&gt;pass               = $proxy-&gt;password();
			}
		}

		// Avoid issues where mbstring.func_overload is enabled.
		mbstring_binary_safe_encoding();

		try {
			$requests_response = WpOrg\Requests\Requests::request( $url, $headers, $data, $type, $options );

			// Convert the response into an array.
			$http_response = new WP_HTTP_Requests_Response( $requests_response, $parsed_args[&#039;filename&#039;] );
			$response      = $http_response-&gt;to_array();

			// Add the original object to the array.
			$response[&#039;http_response&#039;] = $http_response;
		} catch ( WpOrg\Requests\Exception $e ) {
			$response = new WP_Error( &#039;http_request_failed&#039;, $e-&gt;getMessage() );
		}

		reset_mbstring_encoding();

		/**
		 * Fires after an HTTP API response is received and before the response is returned.
		 *
		 * @since 2.8.0
		 *
		 * @param array|WP_Error $response    HTTP response or WP_Error object.
		 * @param string         $context     Context under which the hook is fired.
		 * @param string         $class       HTTP transport used.
		 * @param array          $parsed_args HTTP request arguments.
		 * @param string         $url         The request URL.
		 */
		do_action( &#039;http_api_debug&#039;, $response, &#039;response&#039;, &#039;WpOrg\Requests\Requests&#039;, $parsed_args, $url );
		if ( is_wp_error( $response ) ) {
			return $response;
		}

		if ( ! $parsed_args[&#039;blocking&#039;] ) {
			return array(
				&#039;headers&#039;       =&gt; array(),
				&#039;body&#039;          =&gt; &#039;&#039;,
				&#039;response&#039;      =&gt; array(
					&#039;code&#039;    =&gt; false,
					&#039;message&#039; =&gt; false,
				),
				&#039;cookies&#039;       =&gt; array(),
				&#039;http_response&#039; =&gt; null,
			);
		}

		/**
		 * Filters a successful HTTP API response immediately before the response is returned.
		 *
		 * @since 2.9.0
		 *
		 * @param array  $response    HTTP response.
		 * @param array  $parsed_args HTTP request arguments.
		 * @param string $url         The request URL.
		 */
		return apply_filters( &#039;http_response&#039;, $response, $parsed_args, $url );
	}

	/**
	 * Normalizes cookies for using in Requests.
	 *
	 * @since 4.6.0
	 *
	 * @param array $cookies Array of cookies to send with the request.
	 * @return WpOrg\Requests\Cookie\Jar Cookie holder object.
	 */
	public static function normalize_cookies( $cookies ) {
		$cookie_jar = new WpOrg\Requests\Cookie\Jar();

		foreach ( $cookies as $name =&gt; $value ) {
			if ( $value instanceof WP_Http_Cookie ) {
				$attributes                 = array_filter(
					$value-&gt;get_attributes(),
					static function ( $attr ) {
						return null !== $attr;
					}
				);
				$cookie_jar[ $value-&gt;name ] = new WpOrg\Requests\Cookie( (string) $value-&gt;name, $value-&gt;value, $attributes, array( &#039;host-only&#039; =&gt; $value-&gt;host_only ) );
			} elseif ( is_scalar( $value ) ) {
				$cookie_jar[ $name ] = new WpOrg\Requests\Cookie( (string) $name, (string) $value );
			}
		}

		return $cookie_jar;
	}

	/**
	 * Match redirect behavior to browser handling.
	 *
	 * Changes 302 redirects from POST to GET to match browser handling. Per
	 * RFC 7231, user agents can deviate from the strict reading of the
	 * specification for compatibility purposes.
	 *
	 * @since 4.6.0
	 *
	 * @param string                  $location URL to redirect to.
	 * @param array                   $headers  Headers for the redirect.
	 * @param string|array            $data     Body to send with the request.
	 * @param array                   $options  Redirect request options.
	 * @param WpOrg\Requests\Response $original Response object.
	 */
	public static function browser_redirect_compatibility( $location, $headers, $data, &amp;$options, $original ) {
		// Browser compatibility.
		if ( 302 === $original-&gt;status_code ) {
			$options[&#039;type&#039;] = WpOrg\Requests\Requests::GET;
		}
	}

	/**
	 * Validate redirected URLs.
	 *
	 * @since 4.7.5
	 *
	 * @throws WpOrg\Requests\Exception On unsuccessful URL validation.
	 * @param string $location URL to redirect to.
	 */
	public static function validate_redirects( $location ) {
		if ( ! wp_http_validate_url( $location ) ) {
			throw new WpOrg\Requests\Exception( __( &#039;A valid URL was not provided.&#039; ), &#039;wp_http.redirect_failed_validation&#039; );
		}
	}

	/**
	 * Tests which transports are capable of supporting the request.
	 *
	 * @since 3.2.0
	 * @deprecated 6.4.0 Use WpOrg\Requests\Requests::get_transport_class()
	 * @see WpOrg\Requests\Requests::get_transport_class()
	 *
	 * @param array  $args Request arguments.
	 * @param string $url  URL to request.
	 * @return string|false Class name for the first transport that claims to support the request.
	 *                      False if no transport claims to support the request.
	 */
	public function _get_first_available_transport( $args, $url = null ) {
		$transports = array( &#039;curl&#039;, &#039;streams&#039; );

		/**
		 * Filters which HTTP transports are available and in what order.
		 *
		 * @since 3.7.0
		 * @deprecated 6.4.0 Use WpOrg\Requests\Requests::get_transport_class()
		 *
		 * @param string[] $transports Array of HTTP transports to check. Default array contains
		 *                             &#039;curl&#039; and &#039;streams&#039;, in that order.
		 * @param array    $args       HTTP request arguments.
		 * @param string   $url        The URL to request.
		 */
		$request_order = apply_filters_deprecated( &#039;http_api_transports&#039;, array( $transports, $args, $url ), &#039;6.4.0&#039; );

		// Loop over each transport on each HTTP request looking for one which will serve this request&#039;s needs.
		foreach ( $request_order as $transport ) {
			if ( in_array( $transport, $transports, true ) ) {
				$transport = ucfirst( $transport );
			}
			$class = &#039;WP_Http_&#039; . $transport;

			// Check to see if this transport is a possibility, calls the transport statically.
			if ( ! call_user_func( array( $class, &#039;test&#039; ), $args, $url ) ) {
				continue;
			}

			return $class;
		}

		return false;
	}

	/**
	 * Dispatches a HTTP request to a supporting transport.
	 *
	 * Tests each transport in order to find a transport which matches the request arguments.
	 * Also caches the transport instance to be used later.
	 *
	 * The order for requests is cURL, and then PHP Streams.
	 *
	 * @since 3.2.0
	 * @deprecated 5.1.0 Use WP_Http::request()
	 * @see WP_Http::request()
	 *
	 * @param string $url  URL to request.
	 * @param array  $args Request arguments.
	 * @return array|WP_Error Array containing &#039;headers&#039;, &#039;body&#039;, &#039;response&#039;, &#039;cookies&#039;, &#039;filename&#039;.
	 *                        A WP_Error instance upon error.
	 */
	private function _dispatch_request( $url, $args ) {
		static $transports = array();

		$class = $this-&gt;_get_first_available_transport( $args, $url );
		if ( ! $class ) {
			return new WP_Error( &#039;http_failure&#039;, __( &#039;There are no HTTP transports available which can complete the requested request.&#039; ) );
		}

		// Transport claims to support request, instantiate it and give it a whirl.
		if ( empty( $transports[ $class ] ) ) {
			$transports[ $class ] = new $class();
		}

		$response = $transports[ $class ]-&gt;request( $url, $args );

		/** This action is documented in wp-includes/class-wp-http.php */
		do_action( &#039;http_api_debug&#039;, $response, &#039;response&#039;, $class, $args, $url );

		if ( is_wp_error( $response ) ) {
			return $response;
		}

		/** This filter is documented in wp-includes/class-wp-http.php */
		return apply_filters( &#039;http_response&#039;, $response, $args, $url );
	}

	/**
	 * Uses the POST HTTP method.
	 *
	 * Used for sending data that is expected to be in the body.
	 *
	 * @since 2.7.0
	 *
	 * @param string       $url  The request URL.
	 * @param string|array $args Optional. Override the defaults.
	 * @return array|WP_Error Array containing &#039;headers&#039;, &#039;body&#039;, &#039;response&#039;, &#039;cookies&#039;, &#039;filename&#039;.
	 *                        A WP_Error instance upon error. See WP_Http::response() for details.
	 */
	public function post( $url, $args = array() ) {
		$defaults    = array( &#039;method&#039; =&gt; &#039;POST&#039; );
		$parsed_args = wp_parse_args( $args, $defaults );
		return $this-&gt;request( $url, $parsed_args );
	}

	/**
	 * Uses the GET HTTP method.
	 *
	 * Used for sending data that is expected to be in the body.
	 *
	 * @since 2.7.0
	 *
	 * @param string       $url  The request URL.
	 * @param string|array $args Optional. Override the defaults.
	 * @return array|WP_Error Array containing &#039;headers&#039;, &#039;body&#039;, &#039;response&#039;, &#039;cookies&#039;, &#039;filename&#039;.
	 *                        A WP_Error instance upon error. See WP_Http::response() for details.
	 */
	public function get( $url, $args = array() ) {
		$defaults    = array( &#039;method&#039; =&gt; &#039;GET&#039; );
		$parsed_args = wp_parse_args( $args, $defaults );
		return $this-&gt;request( $url, $parsed_args );
	}

	/**
	 * Uses the HEAD HTTP method.
	 *
	 * Used for sending data that is expected to be in the body.
	 *
	 * @since 2.7.0
	 *
	 * @param string       $url  The request URL.
	 * @param string|array $args Optional. Override the defaults.
	 * @return array|WP_Error Array containing &#039;headers&#039;, &#039;body&#039;, &#039;response&#039;, &#039;cookies&#039;, &#039;filename&#039;.
	 *                        A WP_Error instance upon error. See WP_Http::response() for details.
	 */
	public function head( $url, $args = array() ) {
		$defaults    = array( &#039;method&#039; =&gt; &#039;HEAD&#039; );
		$parsed_args = wp_parse_args( $args, $defaults );
		return $this-&gt;request( $url, $parsed_args );
	}

	/**
	 * Parses the responses and splits the parts into headers and body.
	 *
	 * @since 2.7.0
	 *
	 * @param string $response The full response string.
	 * @return array {
	 *     Array with response headers and body.
	 *
	 *     @type string $headers HTTP response headers.
	 *     @type string $body    HTTP response body.
	 * }
	 */
	public static function processResponse( $response ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
		$response = explode( &quot;\r\n\r\n&quot;, $response, 2 );

		return array(
			&#039;headers&#039; =&gt; $response[0],
			&#039;body&#039;    =&gt; $response[1] ?? &#039;&#039;,
		);
	}

	/**
	 * Transforms header string into an array.
	 *
	 * @since 2.7.0
	 *
	 * @param string|array $headers The original headers. If a string is passed, it will be converted
	 *                              to an array. If an array is passed, then it is assumed to be
	 *                              raw header data with numeric keys with the headers as the values.
	 *                              No headers must be passed that were already processed.
	 * @param string       $url     Optional. The URL that was requested. Default empty.
	 * @return array {
	 *     Processed string headers. If duplicate headers are encountered,
	 *     then a numbered array is returned as the value of that header-key.
	 *
	 *     @type array            $response {
	 *         @type int    $code    The response status code. Default 0.
	 *         @type string $message The response message. Default empty.
	 *     }
	 *     @type array            $newheaders The processed header data as a multidimensional array.
	 *     @type WP_Http_Cookie[] $cookies    If the original headers contain the &#039;Set-Cookie&#039; key,
	 *                                        an array containing `WP_Http_Cookie` objects is returned.
	 * }
	 */
	public static function processHeaders( $headers, $url = &#039;&#039; ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
		// Split headers, one per array element.
		if ( is_string( $headers ) ) {
			// Tolerate line terminator: CRLF = LF (RFC 2616 19.3).
			$headers = str_replace( &quot;\r\n&quot;, &quot;\n&quot;, $headers );
			/*
			 * Unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) &lt;US-ASCII SP, space (32)&gt;,
			 * &lt;US-ASCII HT, horizontal-tab (9)&gt; (RFC 2616 2.2).
			 */
			$headers = preg_replace( &#039;/\n[ \t]/&#039;, &#039; &#039;, $headers );
			// Create the headers array.
			$headers = explode( &quot;\n&quot;, $headers );
		}

		$response = array(
			&#039;code&#039;    =&gt; 0,
			&#039;message&#039; =&gt; &#039;&#039;,
		);

		/*
		 * If a redirection has taken place, The headers for each page request may have been passed.
		 * In this case, determine the final HTTP header and parse from there.
		 */
		for ( $i = count( $headers ) - 1; $i &gt;= 0; $i-- ) {
			if ( ! empty( $headers[ $i ] ) &amp;&amp; ! str_contains( $headers[ $i ], &#039;:&#039; ) ) {
				$headers = array_splice( $headers, $i );
				break;
			}
		}

		$cookies    = array();
		$newheaders = array();
		foreach ( (array) $headers as $tempheader ) {
			if ( empty( $tempheader ) ) {
				continue;
			}

			if ( ! str_contains( $tempheader, &#039;:&#039; ) ) {
				$stack   = explode( &#039; &#039;, $tempheader, 3 );
				$stack[] = &#039;&#039;;
				list( , $response[&#039;code&#039;], $response[&#039;message&#039;]) = $stack;
				continue;
			}

			list($key, $value) = explode( &#039;:&#039;, $tempheader, 2 );

			$key   = strtolower( $key );
			$value = trim( $value );

			if ( isset( $newheaders[ $key ] ) ) {
				if ( ! is_array( $newheaders[ $key ] ) ) {
					$newheaders[ $key ] = array( $newheaders[ $key ] );
				}
				$newheaders[ $key ][] = $value;
			} else {
				$newheaders[ $key ] = $value;
			}
			if ( &#039;set-cookie&#039; === $key ) {
				$cookies[] = new WP_Http_Cookie( $value, $url );
			}
		}

		// Cast the Response Code to an int.
		$response[&#039;code&#039;] = (int) $response[&#039;code&#039;];

		return array(
			&#039;response&#039; =&gt; $response,
			&#039;headers&#039;  =&gt; $newheaders,
			&#039;cookies&#039;  =&gt; $cookies,
		);
	}

	/**
	 * Takes the arguments for a ::request() and checks for the cookie array.
	 *
	 * If it&#039;s found, then it upgrades any basic name =&gt; value pairs to WP_Http_Cookie instances,
	 * which are each parsed into strings and added to the Cookie: header (within the arguments array).
	 * Edits the array by reference.
	 *
	 * @since 2.8.0
	 *
	 * @param array $r Full array of args passed into ::request()
	 */
	public static function buildCookieHeader( &amp;$r ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
		if ( ! empty( $r[&#039;cookies&#039;] ) ) {
			// Upgrade any name =&gt; value cookie pairs to WP_Http_Cookie instances.
			foreach ( $r[&#039;cookies&#039;] as $name =&gt; $value ) {
				if ( ! is_object( $value ) ) {
					$r[&#039;cookies&#039;][ $name ] = new WP_Http_Cookie(
						array(
							&#039;name&#039;  =&gt; $name,
							&#039;value&#039; =&gt; $value,
						)
					);
				}
			}

			$cookies_header = &#039;&#039;;
			foreach ( (array) $r[&#039;cookies&#039;] as $cookie ) {
				$cookies_header .= $cookie-&gt;getHeaderValue() . &#039;; &#039;;
			}

			$cookies_header         = substr( $cookies_header, 0, -2 );
			$r[&#039;headers&#039;][&#039;cookie&#039;] = $cookies_header;
		}
	}

	/**
	 * Decodes chunk transfer-encoding, based off the HTTP 1.1 specification.
	 *
	 * Based off the HTTP http_encoding_dechunk function.
	 *
	 * @link https://tools.ietf.org/html/rfc2616#section-19.4.6 Process for chunked decoding.
	 *
	 * @since 2.7.0
	 *
	 * @param string $body Body content.
	 * @return string Chunked decoded body on success or raw body on failure.
	 */
	public static function chunkTransferDecode( $body ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
		// The body is not chunked encoded or is malformed.
		if ( ! preg_match( &#039;/^([0-9a-f]+)[^\r\n]*\r\n/i&#039;, trim( $body ) ) ) {
			return $body;
		}

		$parsed_body = &#039;&#039;;

		// We&#039;ll be altering $body, so need a backup in case of error.
		$body_original = $body;

		while ( true ) {
			$has_chunk = (bool) preg_match( &#039;/^([0-9a-f]+)[^\r\n]*\r\n/i&#039;, $body, $match );
			if ( ! $has_chunk || empty( $match[1] ) ) {
				return $body_original;
			}

			$length       = hexdec( $match[1] );
			$chunk_length = strlen( $match[0] );

			// Parse out the chunk of data.
			$parsed_body .= substr( $body, $chunk_length, $length );

			// Remove the chunk from the raw data.
			$body = substr( $body, $length + $chunk_length );

			// End of the document.
			if ( &#039;0&#039; === trim( $body ) ) {
				return $parsed_body;
			}
		}
	}

	/**
	 * Determines whether an HTTP API request to the given URL should be blocked.
	 *
	 * Those who are behind a proxy and want to prevent access to certain hosts may do so. This will
	 * prevent plugins from working and core functionality, if you don&#039;t include `api.wordpress.org`.
	 *
	 * You block external URL requests by defining `WP_HTTP_BLOCK_EXTERNAL` as true in your `wp-config.php`
	 * file and this will only allow localhost and your site to make requests. The constant
	 * `WP_ACCESSIBLE_HOSTS` will allow additional hosts to go through for requests. The format of the
	 * `WP_ACCESSIBLE_HOSTS` constant is a comma separated list of hostnames to allow, wildcard domains
	 * are supported, eg `*.wordpress.org` will allow for all subdomains of `wordpress.org` to be contacted.
	 *
	 * @since 2.8.0
	 *
	 * @link https://core.trac.wordpress.org/ticket/8927 Allow preventing external requests.
	 * @link https://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_ACCESSIBLE_HOSTS
	 *
	 * @param string $uri URI of url.
	 * @return bool True to block, false to allow.
	 */
	public function block_request( $uri ) {
		// We don&#039;t need to block requests, because nothing is blocked.
		if ( ! defined( &#039;WP_HTTP_BLOCK_EXTERNAL&#039; ) || ! WP_HTTP_BLOCK_EXTERNAL ) {
			return false;
		}

		$check = parse_url( $uri );
		if ( ! $check ) {
			return true;
		}

		$home = parse_url( get_option( &#039;siteurl&#039; ) );

		// Don&#039;t block requests back to ourselves by default.
		if ( &#039;localhost&#039; === $check[&#039;host&#039;] || ( isset( $home[&#039;host&#039;] ) &amp;&amp; $home[&#039;host&#039;] === $check[&#039;host&#039;] ) ) {
			/**
			 * Filters whether to block local HTTP API requests.
			 *
			 * A local request is one to `localhost` or to the same host as the site itself.
			 *
			 * @since 2.8.0
			 *
			 * @param bool $block Whether to block local requests. Default false.
			 */
			return apply_filters( &#039;block_local_requests&#039;, false );
		}

		if ( ! defined( &#039;WP_ACCESSIBLE_HOSTS&#039; ) ) {
			return true;
		}

		static $accessible_hosts = null;
		static $wildcard_regex   = array();
		if ( null === $accessible_hosts ) {
			$accessible_hosts = preg_split( &#039;|,\s*|&#039;, WP_ACCESSIBLE_HOSTS );

			if ( str_contains( WP_ACCESSIBLE_HOSTS, &#039;*&#039; ) ) {
				$wildcard_regex = array();
				foreach ( $accessible_hosts as $host ) {
					$wildcard_regex[] = str_replace( &#039;\*&#039;, &#039;.+&#039;, preg_quote( $host, &#039;/&#039; ) );
				}
				$wildcard_regex = &#039;/^(&#039; . implode( &#039;|&#039;, $wildcard_regex ) . &#039;)$/i&#039;;
			}
		}

		if ( ! empty( $wildcard_regex ) ) {
			return ! preg_match( $wildcard_regex, $check[&#039;host&#039;] );
		} else {
			return ! in_array( $check[&#039;host&#039;], $accessible_hosts, true ); // Inverse logic, if it&#039;s in the array, then don&#039;t block it.
		}
	}

	/**
	 * Used as a wrapper for PHP&#039;s parse_url() function that handles edgecases in &lt; PHP 5.4.7.
	 *
	 * @deprecated 4.4.0 Use wp_parse_url()
	 * @see wp_parse_url()
	 *
	 * @param string $url The URL to parse.
	 * @return bool|array False on failure; Array of URL components on success;
	 *                    See parse_url()&#039;s return values.
	 */
	protected static function parse_url( $url ) {
		_deprecated_function( __METHOD__, &#039;4.4.0&#039;, &#039;wp_parse_url()&#039; );
		return wp_parse_url( $url );
	}

	/**
	 * Converts a relative URL to an absolute URL relative to a given URL.
	 *
	 * If an Absolute URL is provided, no processing of that URL is done.
	 *
	 * @since 3.4.0
	 *
	 * @param string $maybe_relative_path The URL which might be relative.
	 * @param string $url                 The URL which $maybe_relative_path is relative to.
	 * @return string An Absolute URL, in a failure condition where the URL cannot be parsed, the relative URL will be returned.
	 */
	public static function make_absolute_url( $maybe_relative_path, $url ) {
		if ( empty( $url ) ) {
			return $maybe_relative_path;
		}

		$url_parts = wp_parse_url( $url );
		if ( ! $url_parts ) {
			return $maybe_relative_path;
		}

		$relative_url_parts = wp_parse_url( $maybe_relative_path );
		if ( ! $relative_url_parts ) {
			return $maybe_relative_path;
		}

		// Check for a scheme on the &#039;relative&#039; URL.
		if ( ! empty( $relative_url_parts[&#039;scheme&#039;] ) ) {
			return $maybe_relative_path;
		}

		$absolute_path = $url_parts[&#039;scheme&#039;] . &#039;://&#039;;

		// Schemeless URLs will make it this far, so we check for a host in the relative URL
		// and convert it to a protocol-URL.
		if ( isset( $relative_url_parts[&#039;host&#039;] ) ) {
			$absolute_path .= $relative_url_parts[&#039;host&#039;];
			if ( isset( $relative_url_parts[&#039;port&#039;] ) ) {
				$absolute_path .= &#039;:&#039; . $relative_url_parts[&#039;port&#039;];
			}
		} else {
			$absolute_path .= $url_parts[&#039;host&#039;];
			if ( isset( $url_parts[&#039;port&#039;] ) ) {
				$absolute_path .= &#039;:&#039; . $url_parts[&#039;port&#039;];
			}
		}

		// Start off with the absolute URL path.
		$path = ! empty( $url_parts[&#039;path&#039;] ) ? $url_parts[&#039;path&#039;] : &#039;/&#039;;

		// If it&#039;s a root-relative path, then great.
		if ( ! empty( $relative_url_parts[&#039;path&#039;] ) &amp;&amp; &#039;/&#039; === $relative_url_parts[&#039;path&#039;][0] ) {
			$path = $relative_url_parts[&#039;path&#039;];

			// Else it&#039;s a relative path.
		} elseif ( ! empty( $relative_url_parts[&#039;path&#039;] ) ) {
			// Strip off any file components from the absolute path.
			$path = substr( $path, 0, strrpos( $path, &#039;/&#039; ) + 1 );

			// Build the new path.
			$path .= $relative_url_parts[&#039;path&#039;];

			// Strip all /path/../ out of the path.
			while ( strpos( $path, &#039;../&#039; ) &gt; 1 ) {
				$path = preg_replace( &#039;![^/]+/\.\./!&#039;, &#039;&#039;, $path );
			}

			// Strip any final leading ../ from the path.
			$path = preg_replace( &#039;!^/(\.\./)+!&#039;, &#039;&#039;, $path );
		}

		// Add the query string.
		if ( ! empty( $relative_url_parts[&#039;query&#039;] ) ) {
			$path .= &#039;?&#039; . $relative_url_parts[&#039;query&#039;];
		}

		// Add the fragment.
		if ( ! empty( $relative_url_parts[&#039;fragment&#039;] ) ) {
			$path .= &#039;#&#039; . $relative_url_parts[&#039;fragment&#039;];
		}

		return $absolute_path . &#039;/&#039; . ltrim( $path, &#039;/&#039; );
	}

	/**
	 * Handles an HTTP redirect and follows it if appropriate.
	 *
	 * @since 3.7.0
	 *
	 * @param string $url      The URL which was requested.
	 * @param array  $args     The arguments which were used to make the request.
	 * @param array  $response The response of the HTTP request.
	 * @return array|false|WP_Error An HTTP API response array if the redirect is successfully followed,
	 *                              false if no redirect is present, or a WP_Error object if there&#039;s an error.
	 */
	public static function handle_redirects( $url, $args, $response ) {
		// If no redirects are present, or, redirects were not requested, perform no action.
		if ( ! isset( $response[&#039;headers&#039;][&#039;location&#039;] ) || 0 === $args[&#039;_redirection&#039;] ) {
			return false;
		}

		// Only perform redirections on redirection http codes.
		if ( $response[&#039;response&#039;][&#039;code&#039;] &gt; 399 || $response[&#039;response&#039;][&#039;code&#039;] &lt; 300 ) {
			return false;
		}

		// Don&#039;t redirect if we&#039;ve run out of redirects.
		if ( $args[&#039;redirection&#039;]-- &lt;= 0 ) {
			return new WP_Error( &#039;http_request_failed&#039;, __( &#039;Too many redirects.&#039; ) );
		}

		$redirect_location = $response[&#039;headers&#039;][&#039;location&#039;];

		// If there were multiple Location headers, use the last header specified.
		if ( is_array( $redirect_location ) ) {
			$redirect_location = array_pop( $redirect_location );
		}

		$redirect_location = self::make_absolute_url( $redirect_location, $url );

		// POST requests should not POST to a redirected location.
		if ( &#039;POST&#039; === $args[&#039;method&#039;] ) {
			if ( in_array( $response[&#039;response&#039;][&#039;code&#039;], array( 302, 303 ), true ) ) {
				$args[&#039;method&#039;] = &#039;GET&#039;;
			}
		}

		// Include valid cookies in the redirect process.
		if ( ! empty( $response[&#039;cookies&#039;] ) ) {
			foreach ( $response[&#039;cookies&#039;] as $cookie ) {
				if ( $cookie-&gt;test( $redirect_location ) ) {
					$args[&#039;cookies&#039;][] = $cookie;
				}
			}
		}

		return wp_remote_request( $redirect_location, $args );
	}

	/**
	 * Determines if a specified string represents an IP address or not.
	 *
	 * This function also detects the type of the IP address, returning either
	 * &#039;4&#039; or &#039;6&#039; to represent an IPv4 and IPv6 address respectively.
	 * This does not verify if the IP is a valid IP, only that it appears to be
	 * an IP address.
	 *
	 * @link http://home.deds.nl/~aeron/regex/ for IPv6 regex.
	 *
	 * @since 3.7.0
	 *
	 * @param string $maybe_ip A suspected IP address.
	 * @return int|false Upon success, &#039;4&#039; or &#039;6&#039; to represent an IPv4 or IPv6 address, false upon failure.
	 */
	public static function is_ip_address( $maybe_ip ) {
		if ( preg_match( &#039;/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/&#039;, $maybe_ip ) ) {
			return 4;
		}

		if ( str_contains( $maybe_ip, &#039;:&#039; ) &amp;&amp; preg_match( &#039;/^(((?=.*(::))(?!.*\3.+\3))\3?|([\dA-F]{1,4}(\3|:\b|$)|\2))(?4){5}((?4){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i&#039;, trim( $maybe_ip, &#039; []&#039; ) ) ) {
			return 6;
		}

		return false;
	}
}
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