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User:PhiLiP/zhwp.org

维基百科,自由的百科全书
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zhwp.org域名用于提供中文维基百科的短网址跳转服务。目前已实现的规则有:

打算实现的规则:

PHP源代码:

<?php
$rooturi = 'http://zh.wikipedia.org';

function server( $key ) {
    return isset( $_SERVER[$key] ) ? $_SERVER[$key] : '';
}

function isDirect( $requri ) {
    $reqtest = explode( '/', $requri );
    $reqtest = count( $reqtest ) > 2 ? $reqtest[1] : '';
    return in_array( $reqtest,
        array('w', 'wiki', 'zh', 'zh-hans', 'zh-hant',
        'zh-cn', 'zh-hk', 'zh-sg', 'zh-tw' ) );
}

function charsetConvert( $charset ) {
    $cstable = array(
        'gb2312'  => 'gbk',
        'zh-hans' => 'gbk',
        'zh-hant' => 'big5',
        'zh-cn'   => 'gbk',
        'zh-hk'   => 'big5',
        'zh-mo'   => 'big5',
        'zh-my'   => 'gbk',
        'zh-sg'   => 'gbk',
        'zh-tw'   => 'big5' );
    return strtr( $charset, $cstable );
}

function parseAccept( $ac ) {
    $ac = strtolower( $ac );
    $codes = explode( ',', $ac );
    $ret = array();
    foreach ( $codes as $code ) {
        $code = explode( ';', $code );
        $q = isset( $code[1] ) ? $code[1] : 'q=1';
        $q = explode( '=', $q );
        $q = isset( $q[1] ) ? $q[1] : '1';
        $code = trim($code[0]);
        if( $code == '*' ) {
            continue;
        }
        $q = trim($q);
        if ( $code && $q ) {
            $ret[$code] = $q;
        }
    }
    arsort( $ret );
    return array_keys( $ret );
}

function detectAndConvert( &$req, $possible ) {
    $encoding = mb_detect_encoding( $req, $possible );
    if ( $encoding && $encoding != 'utf-8' ) {
        $req = iconv( $encoding, 'utf-8//IGNORE', $req );
    }
}

function redirect( $requri ) {
    global $rooturi;
    header( 'HTTP/1.1 301 Moved Permanently' );
    header( "Location: {$rooturi}{$requri}" );
}

function main() {
    $requri = server( 'REQUEST_URI' );
    if ( isDirect( $requri ) ) {
        redirect( $requri );
    } else {
        $languages = parseAccept( server( 'HTTP_ACCEPT_LANGUAGE' ) );
        $charsets = parseAccept( server( 'HTTP_ACCEPT_CHARSET' ) );
        $allcharsets = array_map( 'charsetConvert',
                            array_merge( $languages, $charsets ) );
        $requri = strtr( $requri, array( '+' => '%2B' ) );
        $requri = urldecode( $requri );
        $autoconverts = array( 'gbk', 'big5' );
        foreach ( $allcharsets as $charset ) {
            if ( in_array( $charset, $autoconverts ) ) {
                detectAndConvert( $requri, array( 'utf-8', $charset ) );
                break;
            }
        }
        $requri = urlencode( $requri );
        $requri = strtr( $requri, array( '%2F' => '/', '%3A' => ':', '+' => '_', '%2B' => '+' ) );
       
        $realcode = 'wiki';
        foreach( $languages as $code ) {
            if ( in_array( $code,
                array( 'zh-hans', 'zh-hant', 'zh-cn',
                'zh-hk', 'zh-sg', 'zh-tw' ) ) ) {
                $realcode = $code;
                break;
            } elseif ( $code == 'zh-mo' ) {
                $realcode = 'zh-hk';
                break;
            } elseif ( $code == 'zh-my' ) {
                $realcode = 'zh-sg';
                break;
            }
        }
        redirect( '/' . $realcode . $requri );
    }
}

main();