获取歌词改用酷我电脑客户端 about kuwomusicapi HOT 1 OPEN

<?php
include("./libs.php");
// 定义strToHexBuffer函数，接受一个字符串参数
$get_id = 0;
if (empty($_GET['id'])) {
    http_response_code(403);
    echo '{"code":403,"msg":"Wrong params."}';
    return;
}
$get_id = $_GET['id'];
$bufkey = strToHexBuffer('yeelion');
$bufkeylen = count($bufkey);
// 调用函数，得到返回值（16进制的buffer数组）

function buildParams($id, $isGetLyrics = true)
{
    $params = "user=1,web,web,web&requester=localhost&req=1&rid=MUSIC_$id";
    if ($isGetLyrics) $params .= '&lrcx=1';
    $bufstr = strToHexBuffer($params);
    $bufstrlen = count($bufstr);
    $output = $bufstr;
    $bufkeylen = $GLOBALS['bufkeylen'];
    $bufkey = $GLOBALS['bufkey'];
    for ($i = 0; $i < $bufstrlen; $i++) {
        $output[$i] = 0;
    }
    $i = 0;
    while ($i < $bufstrlen) {
        $j = 0;
        while ($j < $bufkeylen && $i < $bufstrlen) {
            $output[$i] = $bufkey[$j] ^ $bufstr[$i];
            $i++;
            $j++;
        }
    }
    //print_r($output);
    $string = implode($output);

    // 将字符串用base64方式编码
    $encoded = base64_encode($string);
    return $encoded;
}
function decodeLyrics($base64, $isGetLyrics = true)
{
    $str = ($base64);
    // echo $str;
    // echo (substr($str,0,10) == "tp=content")?"true":"false";
    if (substr($str, 0, 10) != 'tp=content') return false;
    // $buf = strToHexBuffer($str);
    $newstr = substr($str, strpos($str, "\r\n\r\n") + 4);
    // echo $newstr;
    $unzipstr = base64_decode(gzuncompress($newstr));
    $bufStr = strToHexBuffer($unzipstr);
    $bufStrlen = count($bufStr);
    $output = $bufStr;
    $i = 0;
    $bufkeylen = $GLOBALS['bufkeylen'];
    $bufkey = $GLOBALS['bufkey'];
    while($i< $bufStrlen){
        $j = 0;
        while($j<$bufkeylen && $i<$bufStrlen){
            $output[$i] = $bufStr[$i] ^ $bufkey[$j];
            $i++;
            $j++;
        }
    }
    $result = implode($output);
    return detect_encoding($result,'utf8');
    // return true;
}
/**
 * @ string 需要转换的文字
 * @ encoding 目标编码
 **/
function detect_encoding($string, $encoding = 'gbk')
{
    $is_utf8 = preg_match('%^(?:[\x09\x0A\x0D\x20-\x7E]| [\xC2-\xDF][\x80-\xBF]| \xE0[\xA0-\xBF][\x80-\xBF] | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}  | \xED[\x80-\x9F][\x80-\xBF] | \xF0[\x90-\xBF][\x80-\xBF]{2} | [\xF1-\xF3][\x80-\xBF]{3} | \xF4[\x80-\x8F][\x80-\xBF]{2} )*$%xs', $string);
    if ($is_utf8 && $encoding == 'utf8') {
        return $string;
    } elseif ($is_utf8) {
        return mb_convert_encoding($string, $encoding, "UTF-8");
    } else {
        return mb_convert_encoding($string, $encoding, 'gbk,gb2312,big5');
    }
}
$url = "http://newlyric.kuwo.cn/newlyric.lrc?" . buildParams($get_id);
//echo $url;
$data = fetchURL($url, false);
if ($data == false) {
    http_response_code(500);
    echo '{"msg":"获取失败 (Step#1)","code":500}';
}
$result = decodeLyrics($data);
if ($result == false) {
    http_response_code(500);
    echo '{"msg":"获取失败 (Step#2)","code":500}';
}
echo $result;

function strToHexBuffer($str)
{
    // 将字符串转换为字节数组
    $bytes = unpack("C*", $str);
    // 定义输出数组，用于存储16进制的buffer元素
    $output = array();
    // 循环遍历字节数组，将每个字节转换为16进制，并添加到输出数组中
    foreach ($bytes as $byte) {
        // 使用sprintf函数格式化16进制，并在前面补0（如果需要）
        $hex = sprintf("%02x", $byte);
        // 使用pack函数将16进制转换为二进制，并添加到输出数组中
        $output[] = pack("H*", $hex);
    }
    // 返回输出数组
    return $output;
}
function fetchURL($url, $ispost = false, $postcontent = "")
{
    //echo $url;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
    curl_setopt($ch, CURLOPT_TIMEOUT, 8);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)');
    curl_setopt($ch, CURLOPT_HTTPHEADER, array("Cache-Control: no-cache"));
    curl_setopt($ch, CURLOPT_COOKIE, "NMTID=00OTrNMnhnWaFznwESKkN7usch8O14AAAGDKs_klA;");
    if ($ispost) {
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postcontent);
    }
    $output = curl_exec($ch);
    // echo json_encode(curl_getinfo($ch));
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    if ($output === false) {
        if (in_array(intval(curl_errno($ch)), [7, 28], true)) {
            echo '{"success":"fail","msg":"连接超时，请重试。","code":3}';
            return false;
            //超时的处理代码
        } else if (in_array(intval(curl_errno($ch)), [3], true)) {
            echo '{"success":"fail","msg":"C++ CURL 不支持的 URL：' . $url . '","code":4}';
        } else {
            echo '{"success":"fail","msg":"[' . curl_errno($ch) . '] ' . curl_strerror(curl_errno($ch)) . '; ' . curl_error($ch) . '","code":4}';
            return false;
        }
    }
    if ($httpCode >= 400 && $httpCode < 404) {
        echo '{"success":"fail","msg":"无法访问该文件，请联系站点管理员。","code":5}';
        return false;
    } else if ($httpCode >= 404 && $httpCode < 500) {
        echo '{"success":"fail","msg":"服务器无法找到文件。","code":5}';
        return false;
    } else if ($httpCode >= 500) {
        echo '{"success":"fail","msg":"服务器发生错误，请稍后重试。(Http Status:' . $httpCode . ')","code":6}';
        return false;
    }
    curl_close($ch);
    return $output;
}