www.gusucode.com > WSTMall PHP网店系统 v1.6.0PHP源码程序 > WSTMall PHP网店系统 v1.6.0/wstmall_v1.6.0_160506/wstmall_v1.6.0_160506/ThinkPHP/Library/Vendor/phpRPC/compat.php
<?php
/**********************************************************\
| |
| The implementation of PHPRPC Protocol 3.0 |
| |
| compat.php |
| |
| Release 3.0.1 |
| Copyright by Team-PHPRPC |
| |
| WebSite: http://www.phprpc.org/ |
| http://www.phprpc.net/ |
| http://www.phprpc.com/ |
| http://sourceforge.net/projects/php-rpc/ |
| |
| Authors: Ma Bingyao <andot@ujn.edu.cn> |
| |
| This file may be distributed and/or modified under the |
| terms of the GNU General Public License (GPL) version |
| 2.0 as published by the Free Software Foundation and |
| appearing in the included file LICENSE. |
| |
\**********************************************************/
/* Provides missing functionality for older versions of PHP.
*
* Copyright: Ma Bingyao <andot@ujn.edu.cn>
* Version: 1.5
* LastModified: Apr 12, 2010
* This library is free. You can redistribute it and/or modify it under GPL.
*/
require_once("phprpc_date.php");
if (!function_exists('file_get_contents')) {
function file_get_contents($filename, $incpath = false, $resource_context = null) {
if (false === $fh = fopen($filename, 'rb', $incpath)) {
user_error('file_get_contents() failed to open stream: No such file or directory',
E_USER_WARNING);
return false;
}
clearstatcache();
if ($fsize = @filesize($filename)) {
$data = fread($fh, $fsize);
}
else {
$data = '';
while (!feof($fh)) {
$data .= fread($fh, 8192);
}
}
fclose($fh);
return $data;
}
}
if (!function_exists('ob_get_clean')) {
function ob_get_clean() {
$contents = ob_get_contents();
if ($contents !== false) ob_end_clean();
return $contents;
}
}
/**
3 more bugs found and fixed:
1. failed to work when the gz contained a filename - FIXED
2. failed to work on 64-bit architecture (checksum) - FIXED
3. failed to work when the gz contained a comment - cannot verify.
Returns some errors (not all!) and filename.
*/
if (!function_exists('gzdecode')) {
function gzdecode($data, &$filename = '', &$error = '', $maxlength = null) {
$len = strlen($data);
if ($len < 18 || strcmp(substr($data, 0, 2), "\x1f\x8b")) {
$error = "Not in GZIP format.";
return null; // Not GZIP format (See RFC 1952)
}
$method = ord(substr($data, 2, 1)); // Compression method
$flags = ord(substr($data, 3, 1)); // Flags
if ($flags & 31 != $flags) {
$error = "Reserved bits not allowed.";
return null;
}
// NOTE: $mtime may be negative (PHP integer limitations)
$mtime = unpack("V", substr($data, 4, 4));
$mtime = $mtime[1];
$xfl = substr($data, 8, 1);
$os = substr($data, 8, 1);
$headerlen = 10;
$extralen = 0;
$extra = "";
if ($flags & 4) {
// 2-byte length prefixed EXTRA data in header
if ($len - $headerlen - 2 < 8) {
return false; // invalid
}
$extralen = unpack("v", substr($data, 8, 2));
$extralen = $extralen[1];
if ($len - $headerlen - 2 - $extralen < 8) {
return false; // invalid
}
$extra = substr($data, 10, $extralen);
$headerlen += 2 + $extralen;
}
$filenamelen = 0;
$filename = "";
if ($flags & 8) {
// C-style string
if ($len - $headerlen - 1 < 8) {
return false; // invalid
}
$filenamelen = strpos(substr($data, $headerlen), chr(0));
if ($filenamelen === false || $len - $headerlen - $filenamelen - 1 < 8) {
return false; // invalid
}
$filename = substr($data, $headerlen, $filenamelen);
$headerlen += $filenamelen + 1;
}
$commentlen = 0;
$comment = "";
if ($flags & 16) {
// C-style string COMMENT data in header
if ($len - $headerlen - 1 < 8) {
return false; // invalid
}
$commentlen = strpos(substr($data, $headerlen), chr(0));
if ($commentlen === false || $len - $headerlen - $commentlen - 1 < 8) {
return false; // Invalid header format
}
$comment = substr($data, $headerlen, $commentlen);
$headerlen += $commentlen + 1;
}
$headercrc = "";
if ($flags & 2) {
// 2-bytes (lowest order) of CRC32 on header present
if ($len - $headerlen - 2 < 8) {
return false; // invalid
}
$calccrc = crc32(substr($data, 0, $headerlen)) & 0xffff;
$headercrc = unpack("v", substr($data, $headerlen, 2));
$headercrc = $headercrc[1];
if ($headercrc != $calccrc) {
$error = "Header checksum failed.";
return false; // Bad header CRC
}
$headerlen += 2;
}
// GZIP FOOTER
$datacrc = unpack("V", substr($data, -8, 4));
$datacrc = sprintf('%u', $datacrc[1] & 0xFFFFFFFF);
$isize = unpack("V", substr($data, -4));
$isize = $isize[1];
// decompression:
$bodylen = $len - $headerlen - 8;
if ($bodylen < 1) {
// IMPLEMENTATION BUG!
return null;
}
$body = substr($data, $headerlen, $bodylen);
$data = "";
if ($bodylen > 0) {
switch ($method) {
case 8:
// Currently the only supported compression method:
$data = gzinflate($body, $maxlength);
break;
default:
$error = "Unknown compression method.";
return false;
}
} // zero-byte body content is allowed
// Verifiy CRC32
$crc = sprintf("%u", crc32($data));
$crcOK = $crc == $datacrc;
$lenOK = $isize == strlen($data);
if (!$lenOK || !$crcOK) {
$error = ( $lenOK ? '' : 'Length check FAILED. ') . ( $crcOK ? '' : 'Checksum FAILED.');
return false;
}
return $data;
}
}
if (version_compare(phpversion(), "5", "<")) {
function serialize_fix($v) {
return str_replace('O:11:"phprpc_date":7:{', 'O:11:"PHPRPC_Date":7:{', serialize($v));
}
}
else {
function serialize_fix($v) {
return serialize($v);
}
}
function declare_empty_class($classname) {
static $callback = null;
$classname = preg_replace('/[^a-zA-Z0-9\_]/', '', $classname);
if ($callback===null) {
$callback = $classname;
return;
}
if ($callback) {
call_user_func($callback, $classname);
}
if (!class_exists($classname)) {
if (version_compare(phpversion(), "5", "<")) {
eval('class ' . $classname . ' { }');
}
else {
eval('
class ' . $classname . ' {
private function __get($name) {
$vars = (array)$this;
$protected_name = "\0*\0$name";
$private_name = "\0'.$classname.'\0$name";
if (array_key_exists($name, $vars)) {
return $this->$name;
}
else if (array_key_exists($protected_name, $vars)) {
return $vars[$protected_name];
}
else if (array_key_exists($private_name, $vars)) {
return $vars[$private_name];
}
else {
$keys = array_keys($vars);
$keys = array_values(preg_grep("/^\\\\x00.*?\\\\x00".$name."$/", $keys));
if (isset($keys[0])) {
return $vars[$keys[0]];
}
else {
return NULL;
}
}
}
}');
}
}
}
declare_empty_class(ini_get('unserialize_callback_func'));
ini_set('unserialize_callback_func', 'declare_empty_class');
?>