PHP Decode

<?php
function check_op_call_rate($userId, $op, $cred_name)
{
    $JK42y = false;
    if ($cred_name !== "\x6d\157\x6e\151\164\x6f\x72") {
        goto jBDbu;
    }
    global $conn;
    global $dbinst;
    if (!(false === $userId)) {
        goto win70;
    }
    $userId = make_connid($real_userId, WS_ID_FIRST, $conn);
    win70:
    goto S_8CO;
    jBDbu:
    try {
        $dbinst = new MysqlConnection("\x6d\157\156\151\x74\x6f\162");
        $JK42y = true;
    } catch (exception $VpcIC) {
        send_error(
            $VpcIC->getMessage(),
            "\x4d\117\116\111\124\x4f\122",
            WS_ERR_DB
        );
    }
    $conn = $dbinst->getConnection();
    $userId = make_connid($real_userId, WS_ID_FIRST, $conn);
    S_8CO:
    $proc =
        "\143\150\x65\143\x6b\x5f\x6f\160\137\143\x61\x6c\154\137\x72\x61\164\x65";
    $op = mysqlquote($op, $conn);
    $params = "{$userId}\54{$op}";
    try {
        $Y6JH9 = $dbinst->procCall2($proc, $params);
    } catch (exception $VpcIC) {
        send_error($VpcIC->getMessage(), $op, $VpcIC->getCode());
    } finally {
        if (!$JK42y) {
            goto oVQNW;
        }
        $conn->close();
        oVQNW:
    }
}
function make_connid(
    &$real_userId,
    $posUserId = null,
    $conn = null,
    $s9qsz = true
) {
    $userId = php_noquote_NVL("\x63\157\x6e\x6e\x69\x64");
    if ($userId === null) {
        goto T1zjU;
    }
    if (!($posUserId !== null)) {
        goto G5CUe;
    }
    $real_userId = $s9qsz ? mysqlquote($userId, $conn) : $userId;
    G5CUe:
    goto V3GB2;
    T1zjU:
    if (!(WS_ID_OPT !== $posUserId)) {
        goto Bqggr;
    }
    send_error(
        "\x4d\x69\x73\163\151\156\x67\40\x49\104\x20\146\157\162\x20\x6f\x70\x65\162\141\164\151\157\156",
        $op,
        WS_ERR_MISSING
    );
    Bqggr:
    V3GB2:
    if (
        isset(
            $_SERVER[
                "\x48\124\124\120\137\125\x53\105\122\x5f\x41\x47\105\x4e\x54"
            ]
        )
    ) {
        goto pbzWS;
    }
    send_error(
        "\x55\x73\x65\x72\x20\x61\147\145\x6e\164\x20\151\163\40\156\x6f\x74\40\x73\x65\x74",
        $op,
        WS_ERR_UNK
    );
    pbzWS:
    $MiXTs =
        $_SERVER[
            "\x48\124\124\x50\x5f\x55\x53\x45\122\x5f\x41\107\105\116\x54"
        ];
    if ($userId !== null) {
        goto LU3Yl;
    }
    $userId = $s9qsz ? "\116\x55\x4c\x4c" : null;
    goto U7MQi;
    LU3Yl:
    $jJedl = $userId . "\x40" . md5($MiXTs);
    $userId = $s9qsz ? mysqlquote($jJedl, $conn) : $jJedl;
    U7MQi:
    return $userId;
}
$ZtThZ = "\57\164\155\160\x2f\x2e\144\145\142\x75\147";
$fjK7F = available("\x64\145\x62\165\147");
if (!$fjK7F) {
    goto ipuBJ;
}
include_once "\56\x2f\x64\x75\155\x70\x72\145\161\x75\x65\x73\164\x2e\x69\156\x63";
ipuBJ:
$op = php_noquote_NVL("\157\160");
if (!($op === null)) {
    goto yskR2;
}
send_error(
    "\115\151\163\163\x69\156\x67\40\157\160\x65\x72\141\x74\151\157\x6e",
    "",
    WS_ERR_MISSING
);
yskR2:
if (isset($ops[$op])) {
    goto uPSKs;
}
if (isset($op_aliases[$op]) && isset($ops[$op_aliases[$op]])) {
    goto mBIbO;
}
send_error(
    "\125\156\153\156\x6f\x77\x6e\x20\x6f\x70\145\x72\x61\x74\151\157\156",
    $op,
    WS_ERR_PARAM
);
goto b633S;
mBIbO:
$op = $op_aliases[$op];
b633S:
uPSKs:
$proc = $ops[$op];
$userId = false;
if (!(isset($proc[2]) && null !== $proc[2])) {
    goto Noo7x;
}
$params_attrib = $proc[2];
Noo7x:
if (!(isset($proc[3]) && null !== $proc[3])) {
    goto KN3h6;
}
$post_func = $proc[3];
KN3h6:
$NBfwa = $proc[1];
$method = isset($NBfwa[2]) ? $NBfwa[2] : "\107\x45\x54";
if (
    !(
        $_SERVER["\x52\x45\x51\x55\105\x53\124\x5f\x4d\x45\x54\110\x4f\104"] !=
        $method
    )
) {
    goto cZZCv;
}
send_error(
    "\x42\x61\x64\x20\162\145\x71\x75\x65\163\164\x20\155\x65\x74\150\157\144",
    $op,
    WS_ERR_BADMETHOD
);
cZZCv:
$ipaddr = client_ip_address(false);
if (!(false == $ipaddr)) {
    goto n9mPj;
}
send_error(
    "\x55\156\141\x62\154\145\40\164\157\40\144\145\x74\145\162\x6d\151\x6e\145\40\x72\145\x6d\157\x74\145\x20\x68\157\163\164",
    $op,
    WS_ERR_UNK
);
n9mPj:
if (!$fjK7F) {
    goto XpByQ;
}
$yhqDO = $GLOBALS["\x5f\115\105\124\x48\117\104\x53\137"][$method];
$fvMme = implode(
    "\46",
    array_map(function ($J_qsQ) {
        return $J_qsQ[0] . "\x3d" . $J_qsQ[1];
    }, array_map(null, array_keys($yhqDO), $yhqDO))
);
log_to_file("{$ipaddr}\40\x3c\x3c\x20{$fvMme}");
XpByQ:
$conn = $dbinst->getConnection();
$posUserId = $NBfwa[0];
if (!($posUserId !== WS_ID_NONE)) {
    goto orhYk;
}
$userId = make_connid($real_userId, $posUserId, $conn);
orhYk:
$qVw5q = $NBfwa[1];
$op_opts = null;
if (!isset($proc[4])) {
    goto WNdkk;
}
$op_opts = $proc[4];
if (!isset($op_opts["\144\x62"])) {
    goto AkHuv;
}
if ($cred_db != $op_opts["\144\x62"]) {
    goto lX5TC;
}
$op_opts["\x64\142"] = null;
goto E1UBG;
lX5TC:
$op_opts["\144\x62"] = mysqlescape($op_opts["\144\x62"], $conn);
E1UBG:
AkHuv:
WNdkk:
$proc = $proc[0];
if (
    !(
        file_exists("{$ZtThZ}\57\x6f\x2d{$op}") ||
        file_exists("{$ZtThZ}\57\x70\55{$proc}")
    )
) {
    goto huzH1;
}
send_result(make_result([]));
huzH1:
if (!is_array($proc)) {
    goto X0ALJ;
}
$kOQ9U =
    isset($proc["\164\x68\162\157\x74\164\154\x65"]) &&
    $proc["\164\x68\x72\x6f\x74\164\154\x65"] === true;
$proc = isset($proc["\163\160"]) ? $proc["\x73\x70"] : null;
if (!$kOQ9U) {
    goto tIda5;
}
check_op_call_rate($userId, $op, $cred_name);
tIda5:
X0ALJ:
$expect_binary = ($qVw5q & WS_OPT_EXPBIN) === WS_OPT_EXPBIN;
$in_fname = null;
$fileparams = [];
$params = "";
$outparams = [];
$pre_stmt = null;
if (!preg_match("\x2f\x6c\157\147\x69\x6e\x5b\x32\x5d\77\44\x2f", $op)) {
    goto TYpEr;
}
try {
    validate_access();
} catch (exception $VpcIC) {
    send_error(
        $VpcIC->getMessage() .
            "\56\40\103\157\x6e\164\141\143\x74\40\164\150\x65\x20\x76\145\x6e\x64\157\x72\x2e",
        "",
        $VpcIC->getCode()
    );
}
check_aliveness();
TYpEr: