压缩文件并使用PHP中的密码进行保护 [英] ZIP a file and protect with a password in PHP
问题描述
我有此代码来压缩文件，但我需要使用密码保护该文件
I'm having this code to zip files but i need to protect this file with a password
$file = 'backup.sql';
$zipname = $file.'.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);
ZipArchive::setPassword('123456');
//$zip->setPassword("123456");
$zip->addFile($file);
$zip->close();
当我使用$ zip-> setPassword时，我没有收到任何错误，但是文件没有受到任何保护，当我使用ZipArchive :: setPassword时，我收到此错误致命错误:非静态方法ZipArchive :: setPassword ()不能被静态调用"
when i use $zip->setPassword i don't get any errors but the file is not protected at all and when i use ZipArchive::setPassword i get this error "Fatal error: Non-static method ZipArchive::setPassword() cannot be called statically"
那么如何在php中压缩文件并用密码保护呢?
So how to zip a file in php and protect it with a password?
推荐答案
是的，不支持创建受密码保护的档案(它们将被创建为不受保护的档案).
但是，它仍然可以用于提取受密码保护的档案.
Yes, creation of password protected archives is not supported (they will be created simply as non-protected archives).
But, still it can be used to extract password protected archives.
回到问题.
您总是可以
Returning to the problem.
You always can just
<?php echo system('zip -P pass file.zip file.txt'); ?>
(这将同时在Windows和我们钟爱的Linux上运行)
但是，如果它不符合您的要求，请继续.
我建议您使用 DotNetZip (仅Windows)，您将准确地从中动态生成AES加密的zip存档PHP.
(this will work both on Windows and our beloved Linux)
But, if it not fits into your requirements, let's continue.
I would suggest you to use DotNetZip (Windows only), you will exactly dynamically generate AES-encrypted zip archives from PHP.
<?php
// origin: https://stackoverflow.com/a/670804/3684575
try
{
$fname = "zip-generated-from-php-" . date('Y-m-d-His') . ".zip";
$zipOutput = "c:\\temp\\" . $fname;
$zipfact = new COM("Ionic.Zip.ZipFile");
$zip->Name = $zipOutput;
$dirToZip= "c:\\temp\\psh";
# Encryption: 3 => 256-bit AES.
# 2 => 128-bit AES.
# 1 => PKZIP (Weak).
# 0 => None
$zip->Encryption = 3;
$zip->Password = "AES-Encryption-Is-Secure";
$zip->AddDirectory($dirToZip);
$zip->Save();
$zip->Dispose();
if (file_exists($zipOutput))
{
header('Cache-Control: no-cache, must-revalidate');
header('Content-Type: application/x-zip');
header('Content-Disposition: attachment; filename=' . $fname);
header('Content-Length: ' . filesize($zipOutput));
readfile($zipOutput);
unlink($zipOutput);
}
else
{
echo '<html>';
echo ' <head>';
echo ' <title>Calling DotNetZip from PHP through COM</title>';
echo ' <link rel="stylesheet" href="basic.css"/>';
echo ' </head>';
echo '<body>';
echo '<h2>Whoops!</h2>' . "<br/>\n";
echo '<p>The file was not successfully generated.</p>';
echo '</body>';
echo '</html>';
}
}
catch (Exception $e)
{
echo '<html>';
echo ' <head>';
echo ' <title>Calling DotNetZip from PHP through COM</title>';
echo ' <link rel="stylesheet" href="basic.css"/>';
echo ' </head>';
echo '<body>';
echo '<h2>Whoops!</h2>' . "<br/>\n";
echo '<p>The file was not successfully generated.</p>';
echo '<p>Caught exception: ', $e->getMessage(), '</p>', "\n";
echo '<pre>';
echo $e->getTraceAsString(), "\n";
echo '</pre>';
echo '</body>';
echo '</html>';
}
?>
但是，这仍然是非常肮脏的解决方案，而更多的解决方案在Linux上不起作用.
所以，尽管PHP是一种成熟的语言，但是没有足够的方法(不包括自定义扩展名或类似的扩展名)来使用纯PHP实现如此简单的任务.
您还可以做的是，等到 PHP 7.2 投入生产(cuz ZipArchive :: setEncryptionName 已实现(感谢Pierre和Remi).
但是，在那之前，您还可以尝试将 php_zip > = 1.14.0移植到PHP< 7.2，但是目前没有可用的已编译二进制文件，因此您必须自己对其进行编译，然后尝试一下是否有可能(我相信这是可行的).
p.s.我会尝试的，但是我的PC上现在没有VS2015 +.
But still, this is very dirty solution and more of that, not works on Linux.
So, although PHP is a mature language, there is no adequate method (excluding custom extension or something like that) to achieve such a simple task with pure PHP.
What you also can do, is to wait until PHP 7.2 will be available for production (cuz ZipArchive::setEncryptionName is implemented (thanks to Pierre and Remi)).
But, until then you also can try to port php_zip >= 1.14.0 to PHP < 7.2, but there is currently no compiled binaries available, so you have to compile it yourself and try if it is possible at all (I believe it is).
p.s. I would try it, but have no VS2015+ on my PC right now.
这篇关于压缩文件并使用PHP中的密码进行保护的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
