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Changeset 24481


Ignore:
Timestamp:
06/21/2013 06:12:17 AM (11 years ago)
Author:
nacin
Message:

Better validation of the URL used in core HTTP requests.

Merges [24480] to the 3.5 branch.

Location:
branches/3.5
Files:
11 edited

Legend:

Unmodified
Added
Removed

  • branches/3.5

  • branches/3.5/wp-admin/includes/class-wp-importer.php

    r22108 r24481  
    184184        $headers = array();
    185185        $args = array();
     186        $args['reject_unsafe_urls'] = true;
    186187        if ( true === $head )
    187188            $args['method'] = 'HEAD';

  • branches/3.5/wp-admin/includes/file.php

    r24464 r24481  
    498498        return new WP_Error('http_no_file', __('Could not create Temporary file.'));
    499499
    500     $response = wp_remote_get( $url, array( 'timeout' => $timeout, 'stream' => true, 'filename' => $tmpfname ) );
     500    $response = wp_remote_get( $url, array( 'timeout' => $timeout, 'stream' => true, 'filename' => $tmpfname, 'reject_unsafe_urls' => true ) );
    501501
    502502    if ( is_wp_error( $response ) ) {

  • branches/3.5/wp-includes/class-feed.php

    r22811 r24481  
    6767
    6868        if ( preg_match('/^http(s)?:\/\//i', $url) ) {
    69             $args = array( 'timeout' => $this->timeout, 'redirection' => $this->redirects);
     69            $args = array(
     70                'timeout' => $this->timeout,
     71                'redirection' => $this->redirects,
     72                'reject_unsafe_urls' => true,
     73            );
    7074
    7175            if ( !empty($this->headers) )
    … …  
    8690            }
    8791        } else {
    88             if ( ! file_exists($url) || ( ! $this->body = file_get_contents($url) ) ) {
    89                 $this->error = 'file_get_contents could not read the file';
    90                 $this->success = false;
    91             }
     92            $this->error = '';
     93            $this->success = false;
    9294        }
    9395    }

  • branches/3.5/wp-includes/class-http.php

    r23250 r24481  
    8787            'redirection' => apply_filters( 'http_request_redirection_count', 5),
    8888            'httpversion' => apply_filters( 'http_request_version', '1.0'),
    89             'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )  ),
     89            'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ) ),
     90            'reject_unsafe_urls' => apply_filters( 'http_request_reject_unsafe_urls', false ),
    9091            'blocking' => true,
    9192            'headers' => array(),
    … …  
    117118            return $pre;
    118119
    119         $arrURL = parse_url( $url );
     120        if ( $r['reject_unsafe_urls'] )
     121            $url = wp_http_validate_url( $url );
     122        $url = wp_kses_bad_protocol( $url, array( 'http', 'https', 'ssl' ) );
     123
     124        $arrURL = @parse_url( $url );
    120125
    121126        if ( empty( $url ) || empty( $arrURL['scheme'] ) )
    … …  
    10891094        // bug #17490 with redirected POST requests, so handle redirections outside Curl.
    10901095        curl_setopt( $handle, CURLOPT_FOLLOWLOCATION, false );
     1096        if ( defined( 'CURLOPT_PROTOCOLS' ) ) // PHP 5.2.10 / cURL 7.19.4
     1097            curl_setopt( $handle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS );
    10911098
    10921099        switch ( $r['method'] ) {

  • branches/3.5/wp-includes/class-oembed.php

    r24471 r24481  
    109109
    110110        // Fetch URL content
    111         if ( $html = wp_remote_retrieve_body( wp_remote_get( $url ) ) ) {
     111        if ( $html = wp_remote_retrieve_body( wp_remote_get( $url, array( 'reject_unsafe_urls' => true ) ) ) ) {
    112112
    113113            // <link> types that contain oEmbed provider URLs
    … …  
    191191    function _fetch_with_format( $provider_url_with_args, $format ) {
    192192        $provider_url_with_args = add_query_arg( 'format', $format, $provider_url_with_args );
    193         $response = wp_remote_get( $provider_url_with_args );
     193        $response = wp_remote_get( $provider_url_with_args, array( 'reject_unsafe_urls' => true ) );
    194194        if ( 501 == wp_remote_retrieve_response_code( $response ) )
    195195            return new WP_Error( 'not-implemented' );

  • branches/3.5/wp-includes/class-wp-xmlrpc-server.php

    r23330 r24481  
    53815381
    53825382        // Let's check the remote site
    5383         $linea = wp_remote_retrieve_body( wp_remote_get( $pagelinkedfrom, array( 'timeout' => 10, 'redirection' => 0 ) ) );
     5383        $linea = wp_remote_retrieve_body( wp_remote_get( $pagelinkedfrom, array( 'timeout' => 10, 'redirection' => 0, 'reject_unsafe_urls' => true ) ) );
     5384
    53845385        if ( !$linea )
    53855386            return $this->pingback_error( 16, __( 'The source URL does not exist.' ) );

  • branches/3.5/wp-includes/comment.php

    r23332 r24481  
    16621662        return false;
    16631663
    1664     $response = wp_remote_head( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) );
     1664    $response = wp_remote_head( $url, array( 'timeout' => 2, 'httpversion' => '1.0', 'reject_unsafe_urls' => true ) );
    16651665
    16661666    if ( is_wp_error( $response ) )
    … …  
    16751675
    16761676    // Now do a GET since we're going to look in the html headers (and we're sure its not a binary file)
    1677     $response = wp_remote_get( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) );
     1677    $response = wp_remote_get( $url, array( 'timeout' => 2, 'httpversion' => '1.0', 'reject_unsafe_urls' => true ) );
    16781678
    16791679    if ( is_wp_error( $response ) )
    … …  
    19091909    $options = array();
    19101910    $options['timeout'] = 4;
     1911    $options['reject_unsafe_urls'] = true;
    19111912    $options['body'] = array(
    19121913        'title' => $title,
    … …  
    19561957 *
    19571958 * @since 3.5.1
     1959 * @see wp_http_validate_url()
    19581960 *
    19591961 * @param string $source_uri
    … …  
    19611963 */
    19621964function pingback_ping_source_uri( $source_uri ) {
    1963     $uri = esc_url_raw( $source_uri, array( 'http', 'https' ) );
    1964     if ( ! $uri )
    1965         return '';
    1966 
    1967     $parsed_url = @parse_url( $uri );
    1968     if ( ! $parsed_url )
    1969         return '';
    1970 
    1971     if ( isset( $parsed_url['user'] ) || isset( $parsed_url['pass'] ) )
    1972         return '';
    1973 
    1974     if ( false !== strpos( $parsed_url['host'], ':' ) )
    1975         return '';
    1976 
    1977     $parsed_home = @parse_url( get_option( 'home' ) );
    1978 
    1979     $same_host = strtolower( $parsed_home['host'] ) === strtolower( $parsed_url['host'] );
    1980 
    1981     if ( ! $same_host ) {
    1982         $host = trim( $parsed_url['host'], '.' );
    1983         if ( preg_match( '#^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $host ) ) {
    1984             $ip = $host;
    1985         } else {
    1986             $ip = gethostbyname( $host );
    1987             if ( $ip === $host ) // Error condition for gethostbyname()
    1988                 $ip = false;
    1989         }
    1990         if ( $ip ) {
    1991             if ( '127.0.0.1' === $ip )
    1992                 return '';
    1993             $parts = array_map( 'intval', explode( '.', $ip ) );
    1994             if ( 10 === $parts[0] )
    1995                 return '';
    1996             if ( 172 === $parts[0] && 16 <= $parts[1] && 31 >= $parts[1] )
    1997                 return '';
    1998             if ( 192 === $parts[0] && 168 === $parts[1] )
    1999                 return '';
    2000         }
    2001     }
    2002 
    2003     if ( empty( $parsed_url['port'] ) )
    2004         return $uri;
    2005 
    2006     $port = $parsed_url['port'];
    2007     if ( 80 === $port || 443 === $port || 8080 === $port )
    2008         return $uri;
    2009 
    2010     if ( $parsed_home && $same_host && $parsed_home['port'] === $port )
    2011         return $uri;
    2012 
    2013     return '';
     1965    return (string) wp_http_validate_url( $source_uri );
    20141966}
    20151967

  • branches/3.5/wp-includes/functions.php

    r24445 r24481  
    497497    $options = array();
    498498    $options['redirection'] = 5;
     499    $options['reject_unsafe_urls'] = true;
    499500
    500501    if ( false == $file_path )
    … …  
    544545        _deprecated_argument( __FUNCTION__, '2.7' );
    545546
    546     $response = wp_remote_head( $url );
     547    $response = wp_remote_head( $url, array( 'reject_unsafe_urls' => true ) );
    547548
    548549    if ( is_wp_error( $response ) )
    … …  
    759760    $options = array();
    760761    $options['timeout'] = 10;
     762    $options['reject_unsafe_urls'] = true;
    761763
    762764    $response = wp_remote_get( $uri, $options );

  • branches/3.5/wp-includes/http.php

    r21988 r24481  
    312312    return false;
    313313}
     314
     315/**
     316 * Validate a URL for safe use in the HTTP API.
     317 *
     318 * @since 3.5.2
     319 *
     320 * @return mixed URL or false on failure.
     321 */
     322function wp_http_validate_url( $url ) {
     323    $url = esc_url_raw( $url, array( 'http', 'https' ) );
     324    if ( ! $url )
     325        return false;
     326
     327    $parsed_url = @parse_url( $url );
     328    if ( ! $parsed_url )
     329        return false;
     330
     331    if ( isset( $parsed_url['user'] ) || isset( $parsed_url['pass'] ) )
     332        return false;
     333
     334    if ( false !== strpos( $parsed_url['host'], ':' ) )
     335        return false;
     336
     337    $parsed_home = @parse_url( get_option( 'home' ) );
     338
     339    $same_host = strtolower( $parsed_home['host'] ) === strtolower( $parsed_url['host'] );
     340
     341    if ( ! $same_host ) {
     342        $host = trim( $parsed_url['host'], '.' );
     343        if ( preg_match( '#^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $host ) ) {
     344            $ip = $host;
     345        } else {
     346            $ip = gethostbyname( $host );
     347            if ( $ip === $host ) // Error condition for gethostbyname()
     348                $ip = false;
     349        }
     350        if ( $ip ) {
     351            if ( '127.0.0.1' === $ip )
     352                return false;
     353            $parts = array_map( 'intval', explode( '.', $ip ) );
     354            if ( 10 === $parts[0] )
     355                return false;
     356            if ( 172 === $parts[0] && 16 <= $parts[1] && 31 >= $parts[1] )
     357                return false;
     358            if ( 192 === $parts[0] && 168 === $parts[1] )
     359                return false;
     360        }
     361    }
     362
     363    if ( empty( $parsed_url['port'] ) )
     364        return $url;
     365
     366    $port = $parsed_url['port'];
     367    if ( 80 === $port || 443 === $port || 8080 === $port )
     368        return $url;
     369
     370    if ( $parsed_home && $same_host && $parsed_home['port'] === $port )
     371        return $url;
     372
     373    return false;
     374}

  • branches/3.5/wp-includes/rss.php

    r19712 r24481  
    537537 */
    538538function _fetch_remote_file($url, $headers = "" ) {
    539     $resp = wp_remote_request($url, array('headers' => $headers, 'timeout' => MAGPIE_FETCH_TIME_OUT));
     539    $resp = wp_remote_request($url, array('headers' => $headers, 'timeout' => MAGPIE_FETCH_TIME_OUT, 'reject_unsafe_urls' => true ));
    540540    if ( is_wp_error($resp) ) {
    541541        $error = array_shift($resp->errors);
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