/** * HTTP API: WP_Http_Streams class * * @package WordPress * @subpackage HTTP * @since 4.4.0 */ /** * Core class used to integrate PHP Streams as an HTTP transport. * * @since 2.7.0 * @since 3.7.0 Combined with the fsockopen transport and switched to `stream_socket_client()`. * @deprecated 6.4.0 Use WP_Http * @see WP_Http */ #[AllowDynamicProperties] class WP_Http_Streams { /** * Send a HTTP request to a URI using PHP Streams. * * @see WP_Http::request() For default options descriptions. * * @since 2.7.0 * @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client(). * * @param string $url The request URL. * @param string|array $args Optional. Override the defaults. * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error */ public function request( $url, $args = array() ) { $defaults = array( 'method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array(), 'decompress' => false, 'stream' => false, 'filename' => null, ); $parsed_args = wp_parse_args( $args, $defaults ); if ( isset( $parsed_args['headers']['User-Agent'] ) ) { $parsed_args['user-agent'] = $parsed_args['headers']['User-Agent']; unset( $parsed_args['headers']['User-Agent'] ); } elseif ( isset( $parsed_args['headers']['user-agent'] ) ) { $parsed_args['user-agent'] = $parsed_args['headers']['user-agent']; unset( $parsed_args['headers']['user-agent'] ); } // Construct Cookie: header if any cookies are set. WP_Http::buildCookieHeader( $parsed_args ); $parsed_url = parse_url( $url ); $connect_host = $parsed_url['host']; $secure_transport = ( 'ssl' === $parsed_url['scheme'] || 'https' === $parsed_url['scheme'] ); if ( ! isset( $parsed_url['port'] ) ) { if ( 'ssl' === $parsed_url['scheme'] || 'https' === $parsed_url['scheme'] ) { $parsed_url['port'] = 443; $secure_transport = true; } else { $parsed_url['port'] = 80; } } // Always pass a path, defaulting to the root in cases such as http://example.com. if ( ! isset( $parsed_url['path'] ) ) { $parsed_url['path'] = '/'; } if ( isset( $parsed_args['headers']['Host'] ) || isset( $parsed_args['headers']['host'] ) ) { if ( isset( $parsed_args['headers']['Host'] ) ) { $parsed_url['host'] = $parsed_args['headers']['Host']; } else { $parsed_url['host'] = $parsed_args['headers']['host']; } unset( $parsed_args['headers']['Host'], $parsed_args['headers']['host'] ); } /* * Certain versions of PHP have issues with 'localhost' and IPv6, It attempts to connect * to ::1, which fails when the server is not set up for it. For compatibility, always * connect to the IPv4 address. */ if ( 'localhost' === strtolower( $connect_host ) ) { $connect_host = '127.0.0.1'; } $connect_host = $secure_transport ? 'ssl://' . $connect_host : 'tcp://' . $connect_host; $is_local = isset( $parsed_args['local'] ) && $parsed_args['local']; $ssl_verify = isset( $parsed_args['sslverify'] ) && $parsed_args['sslverify']; if ( $is_local ) { /** * Filters whether SSL should be verified for local HTTP API requests. * * @since 2.8.0 * @since 5.1.0 The `$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. */ $ssl_verify = apply_filters( 'https_local_ssl_verify', $ssl_verify, $url ); } elseif ( ! $is_local ) { /** This filter is documented in wp-includes/class-wp-http.php */ $ssl_verify = apply_filters( 'https_ssl_verify', $ssl_verify, $url ); } $proxy = new WP_HTTP_Proxy(); $context = stream_context_create( array( 'ssl' => array( 'verify_peer' => $ssl_verify, // 'CN_match' => $parsed_url['host'], // This is handled by self::verify_ssl_certificate(). 'capture_peer_cert' => $ssl_verify, 'SNI_enabled' => true, 'cafile' => $parsed_args['sslcertificates'], 'allow_self_signed' => ! $ssl_verify, ), ) ); $timeout = (int) floor( $parsed_args['timeout'] ); $utimeout = 0; if ( $timeout !== (int) $parsed_args['timeout'] ) { $utimeout = 1000000 * $parsed_args['timeout'] % 1000000; } $connect_timeout = max( $timeout, 1 ); // Store error number. $connection_error = null; // Store error string. $connection_error_str = null; if ( ! WP_DEBUG ) { // In the event that the SSL connection fails, silence the many PHP warnings. if ( $secure_transport ) { $error_reporting = error_reporting( 0 ); } if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged $handle = @stream_socket_client( 'tcp://' . $proxy->host() . ':' . $proxy->port(), $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context ); } else { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged $handle = @stream_socket_client( $connect_host . ':' . $parsed_url['port'], $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context ); } if ( $secure_transport ) { error_reporting( $error_reporting ); } } else { if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) { $handle = stream_socket_client( 'tcp://' . $proxy->host() . ':' . $proxy->port(), $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context ); } else { $handle = stream_socket_client( $connect_host . ':' . $parsed_url['port'], $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context ); } } if ( false === $handle ) { // SSL connection failed due to expired/invalid cert, or, OpenSSL configuration is broken. if ( $secure_transport && 0 === $connection_error && '' === $connection_error_str ) { return new WP_Error( 'http_request_failed', __( 'The SSL certificate for the host could not be verified.' ) ); } return new WP_Error( 'http_request_failed', $connection_error . ': ' . $connection_error_str ); } // Verify that the SSL certificate is valid for this request. if ( $secure_transport && $ssl_verify && ! $proxy->is_enabled() ) { if ( ! self::verify_ssl_certificate( $handle, $parsed_url['host'] ) ) { return new WP_Error( 'http_request_failed', __( 'The SSL certificate for the host could not be verified.' ) ); } } stream_set_timeout( $handle, $timeout, $utimeout ); if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) { // Some proxies require full URL in this field. $request_path = $url; } else { $request_path = $parsed_url['path'] . ( isset( $parsed_url['query'] ) ? '?' . $parsed_url['query'] : '' ); } $headers = strtoupper( $parsed_args['method'] ) . ' ' . $request_path . ' HTTP/' . $parsed_args['httpversion'] . "\r\n"; $include_port_in_host_header = ( ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) || ( 'http' === $parsed_url['scheme'] && 80 !== $parsed_url['port'] ) || ( 'https' === $parsed_url['scheme'] && 443 !== $parsed_url['port'] ) ); if ( $include_port_in_host_header ) { $headers .= 'Host: ' . $parsed_url['host'] . ':' . $parsed_url['port'] . "\r\n"; } else { $headers .= 'Host: ' . $parsed_url['host'] . "\r\n"; } if ( isset( $parsed_args['user-agent'] ) ) { $headers .= 'User-agent: ' . $parsed_args['user-agent'] . "\r\n"; } if ( is_array( $parsed_args['headers'] ) ) { foreach ( (array) $parsed_args['headers'] as $header => $header_value ) { $headers .= $header . ': ' . $header_value . "\r\n"; } } else { $headers .= $parsed_args['headers']; } if ( $proxy->use_authentication() ) { $headers .= $proxy->authentication_header() . "\r\n"; } $headers .= "\r\n"; if ( ! is_null( $parsed_args['body'] ) ) { $headers .= $parsed_args['body']; } fwrite( $handle, $headers ); if ( ! $parsed_args['blocking'] ) { stream_set_blocking( $handle, 0 ); fclose( $handle ); return array( 'headers' => array(), 'body' => '', 'response' => array( 'code' => false, 'message' => false, ), 'cookies' => array(), ); } $response = ''; $body_started = false; $keep_reading = true; $block_size = 4096; if ( isset( $parsed_args['limit_response_size'] ) ) { $block_size = min( $block_size, $parsed_args['limit_response_size'] ); } // If streaming to a file setup the file handle. if ( $parsed_args['stream'] ) { if ( ! WP_DEBUG ) { $stream_handle = @fopen( $parsed_args['filename'], 'w+' ); } else { $stream_handle = fopen( $parsed_args['filename'], 'w+' ); } if ( ! $stream_handle ) { return new WP_Error( 'http_request_failed', sprintf( /* translators: 1: fopen(), 2: File name. */ __( 'Could not open handle for %1$s to %2$s.' ), 'fopen()', $parsed_args['filename'] ) ); } $bytes_written = 0; while ( ! feof( $handle ) && $keep_reading ) { $block = fread( $handle, $block_size ); if ( ! $body_started ) { $response .= $block; if ( strpos( $response, "\r\n\r\n" ) ) { $processed_response = WP_Http::processResponse( $response ); $body_started = true; $block = $processed_response['body']; unset( $response ); $processed_response['body'] = ''; } } $this_block_size = strlen( $block ); if ( isset( $parsed_args['limit_response_size'] ) && ( $bytes_written + $this_block_size ) > $parsed_args['limit_response_size'] ) { $this_block_size = ( $parsed_args['limit_response_size'] - $bytes_written ); $block = substr( $block, 0, $this_block_size ); } $bytes_written_to_file = fwrite( $stream_handle, $block ); if ( $bytes_written_to_file !== $this_block_size ) { fclose( $handle ); fclose( $stream_handle ); return new WP_Error( 'http_request_failed', __( 'Failed to write request to temporary file.' ) ); } $bytes_written += $bytes_written_to_file; $keep_reading = ( ! isset( $parsed_args['limit_response_size'] ) || $bytes_written < $parsed_args['limit_response_size'] ); } fclose( $stream_handle ); } else { $header_length = 0; while ( ! feof( $handle ) && $keep_reading ) { $block = fread( $handle, $block_size ); $response .= $block; if ( ! $body_started && strpos( $response, "\r\n\r\n" ) ) { $header_length = strpos( $response, "\r\n\r\n" ) + 4; $body_started = true; } $keep_reading = ( ! $body_started || ! isset( $parsed_args['limit_response_size'] ) || strlen( $response ) < ( $header_length + $parsed_args['limit_response_size'] ) ); } $processed_response = WP_Http::processResponse( $response ); unset( $response ); } fclose( $handle ); $processed_headers = WP_Http::processHeaders( $processed_response['headers'], $url ); $response = array( 'headers' => $processed_headers['headers'], // Not yet processed. 'body' => null, 'response' => $processed_headers['response'], 'cookies' => $processed_headers['cookies'], 'filename' => $parsed_args['filename'], ); // Handle redirects. $redirect_response = WP_Http::handle_redirects( $url, $parsed_args, $response ); if ( false !== $redirect_response ) { return $redirect_response; } // If the body was chunk encoded, then decode it. if ( ! empty( $processed_response['body'] ) && isset( $processed_headers['headers']['transfer-encoding'] ) && 'chunked' === $processed_headers['headers']['transfer-encoding'] ) { $processed_response['body'] = WP_Http::chunkTransferDecode( $processed_response['body'] ); } if ( true === $parsed_args['decompress'] && true === WP_Http_Encoding::should_decode( $processed_headers['headers'] ) ) { $processed_response['body'] = WP_Http_Encoding::decompress( $processed_response['body'] ); } if ( isset( $parsed_args['limit_response_size'] ) && strlen( $processed_response['body'] ) > $parsed_args['limit_response_size'] ) { $processed_response['body'] = substr( $processed_response['body'], 0, $parsed_args['limit_response_size'] ); } $response['body'] = $processed_response['body']; return $response; } /** * Verifies the received SSL certificate against its Common Names and subjectAltName fields. * * PHP's SSL verifications only verify that it's a valid Certificate, it doesn't verify if * the certificate is valid for the hostname which was requested. * This function verifies the requested hostname against certificate's subjectAltName field, * if that is empty, or contains no DNS entries, a fallback to the Common Name field is used. * * IP Address support is included if the request is being made to an IP address. * * @since 3.7.0 * * @param resource $stream The PHP Stream which the SSL request is being made over * @param string $host The hostname being requested * @return bool If the certificate presented in $stream is valid for $host */ public static function verify_ssl_certificate( $stream, $host ) { $context_options = stream_context_get_options( $stream ); if ( empty( $context_options['ssl']['peer_certificate'] ) ) { return false; } $cert = openssl_x509_parse( $context_options['ssl']['peer_certificate'] ); if ( ! $cert ) { return false; } /* * If the request is being made to an IP address, we'll validate against IP fields * in the cert (if they exist) */ $host_type = ( WP_Http::is_ip_address( $host ) ? 'ip' : 'dns' ); $certificate_hostnames = array(); if ( ! empty( $cert['extensions']['subjectAltName'] ) ) { $match_against = preg_split( '/,\s*/', $cert['extensions']['subjectAltName'] ); foreach ( $match_against as $match ) { list( $match_type, $match_host ) = explode( ':', $match ); if ( strtolower( trim( $match_type ) ) === $host_type ) { // IP: or DNS: $certificate_hostnames[] = strtolower( trim( $match_host ) ); } } } elseif ( ! empty( $cert['subject']['CN'] ) ) { // Only use the CN when the certificate includes no subjectAltName extension. $certificate_hostnames[] = strtolower( $cert['subject']['CN'] ); } // Exact hostname/IP matches. if ( in_array( strtolower( $host ), $certificate_hostnames, true ) ) { return true; } // IP's can't be wildcards, Stop processing. if ( 'ip' === $host_type ) { return false; } // Test to see if the domain is at least 2 deep for wildcard support. if ( substr_count( $host, '.' ) < 2 ) { return false; } // Wildcard subdomains certs (*.example.com) are valid for a.example.com but not a.b.example.com. $wildcard_host = preg_replace( '/^[^.]+\./', '*.', $host ); return in_array( strtolower( $wildcard_host ), $certificate_hostnames, true ); } /** * Determines whether this class can be used for retrieving a URL. * * @since 2.7.0 * @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client(). * * @param array $args Optional. Array of request arguments. Default empty array. * @return bool False means this class can not be used, true means it can. */ public static function test( $args = array() ) { if ( ! function_exists( 'stream_socket_client' ) ) { return false; } $is_ssl = isset( $args['ssl'] ) && $args['ssl']; if ( $is_ssl ) { if ( ! extension_loaded( 'openssl' ) ) { return false; } if ( ! function_exists( 'openssl_x509_parse' ) ) { return false; } } /** * Filters whether streams can be used as a transport for retrieving a URL. * * @since 2.7.0 * * @param bool $use_class Whether the class can be used. Default true. * @param array $args Request arguments. */ return apply_filters( 'use_streams_transport', true, $args ); } } /** * Deprecated HTTP Transport method which used fsockopen. * * This class is not used, and is included for backward compatibility only. * All code should make use of WP_Http directly through its API. * * @see WP_HTTP::request * * @since 2.7.0 * @deprecated 3.7.0 Please use WP_HTTP::request() directly */ class WP_HTTP_Fsockopen extends WP_Http_Streams { // For backward compatibility for users who are using the class directly. } Scandinavia – Connection Plus Travel Europe Ltd.
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Scandinavia

"Nordic dreams, enchanting landscapes."

A day-by-day plan to guide your journey.

  • DAY 1: ARRIVAL IN STOCKHOLM

    After your arrival at Stockholm Arlanda Airport, make your way into Stockholm city centre. . If you arrive early in the day, we recommend spending the afternoon strolling through the city centre. You could go shopping on the well-known pedestrian street Drottninggatan and explore the surrounding area of Ostermalm. Here you will find numerous shops, cafés, and restaurants for a perfect introduction to Scandinavian culture.

  • DAY 2: THE HIGHLIGHTS OF STOCKHOLM

    Today you will explore the historical heart of Stockholm. In the morning, embark on a tour around the top city attractions including the City Hall, the hip district of Sodermalm, where you will get a panoramic view over Stockholm, and the Old Town (“Gamla Stan”). Next, you will go on a guided walk through the medieval cobbled streets of the Old Town . Take a short ferry ride to the charming island Djurgården. Here you’ll find some of Scandinavia’s most popular museums, including the Vasa Museum and Abba The Museum. You could also visit Skansen, the oldest open-air museum and zoo in Sweden. Other sightseeing include joining a boat tour of the archipelago or visiting the Royal Palace.

  • DAY 3: RAILWAY JOURNEY TO DENMARK

    Head to Stockholm Central Station for a half-day train journey to Denmark. As you travel to your next Scandinavian destination, you’ll be rewarded with the gorgeous scenery of the idyllic farmlands and forests of southern Sweden. Once you’ve reached Copenhagen, the capital of Denmark, we take a walking tour of Copenhagen’s main landmarks. Stroll through the grand courtyard of the Amalienborg Palace, where the Danish Royal Guard stands watch day and night. Take in the impressive Frederiks Kirke and the picturesque and colourful Nyhavn harbour.

  • DAY 4: CASTLES & GARDENS OF THE DANISH CAPITAL

    Enjoy a guided tour of the Renaissance-era Rosenborg Castle followed by a walk through the lush Botanical Garden. We will stop for lunch at the famous Torvehallerne food market – a favourite amongst local and visiting foodies. Proceed with a short canal boat tour with views of Christiansborg Palace, the Royal Danish Opera House and the colourful Christianshavn canal. You’ll then get the rest of the afternoon and evening to explore at your leisure. A perfect way to spend the afternoon and evening is visiting the famous Tivoli Gardens amusement park. It combines international architecture, nostalgic games and rides, as well as lights and music .

  • DAY 5: COPENHAGEN & JOURNEY TO NORWAY

    Explore the Danish capital on your own this morning. We recommend strolling along Strøget, a central street of Copenhagen renowned for world-class shopping, or relaxing at one of the cafés or restaurants by Nyhavn. If you’re up for it, walk up the winding equestrian staircase of the Round Tower (Rundetarn), or, for amazing views of the city, climb the 400 steps to the spiralling steeple of the Church of our Saviour. You can also take this time to take a leisurely stroll along the shoreline to the world-famous Little Mermaid statue. In the early afternoon, you will board a cruise to Oslo and enjoy a traditional Scandinavian dinner buffet on board. As you sail up the Kattegat strait to Norway’s capital, you can take part in the on-board entertainment or just relax and watch the sunset from the deck.

  • DAY 6: ARRIVAL IN NORWAY

    Enjoy the views of the Oslo Fjord during breakfast as the ship sails into port. As you disembark, you‘ll head straight into exploring the Norwegian capital with a local knowledgeable guide. The tour will take you along the famous landmarks of the city. The highlights include the beautiful Vigeland Sculpture Park, filled with over 200 metal and stone artworks, the Royal Palace, Akershus fortress, and City Hall.

  • DAY 7: NORWAY IN A NUTSHELL & FLAM

    We will head to Oslo Central Station to start your Norway in a Nutshell journey towards Bergen. This train ride, ranked amongst the 20 best train journeys in the world, takes you over Norway’s mountainous “rooftop” and through charming villages like Gol and Geilo. In Myrdal, you will board the Flåm Railway for an incredible 20-kilometre (12-mile) ride with a 900-metre (3,000-foot) descent to the beautiful village of Flam. In Flam, you’ll have free admission to the Flam Railway Documentation Centre, located right beside Flam Station. Here you can learn about the construction of one of the world’s steepest railway lines. In the evening, the group will dine together at your accommodation.

  • DAY 8: SPLENDID FJORD CRUISE & MOUNTAINOUS RIDE

    Explore Flam as you wish this morning before board a cruise to continue the journey. The boat tour will take you onto Aurlandsfjord, the narrowest fjord in the world. This is perhaps the most beautiful and wildest arm of the Sognefjord, with its tall mountains, mighty waterfalls and small farms clinging to the steep mountainsides. On arrival at the pier in Gudvangen, you‘ll board a coach to take you on to Voss, where you will switch onto a train for the last stretch of the journey to Bergen.

  • DAY 10: DEPARTURE FROM BERGEN

    Enjoy the last few moments of this amazing journey.