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class-wpvivid-crypt.php

<?php

if (!defined('WPVIVID_PLUGIN_DIR')){
    die;
}

class WPvivid_crypt
{
    private $public_key;
    private $sym_key;

private $rij;
    private $rsa;

public function __construct($public_key)
    {
        $this->public_key=$public_key;
        include_once WPVIVID_PLUGIN_DIR . '/vendor/autoload.php';
        $this->rij= new Crypt_Rijndael();
        $this->rsa= new Crypt_RSA();
    }

public function generate_key()
    {
        $this->sym_key = crypt_random_string(32);
        $this->rij->setKey($this->sym_key);
    }

public function encrypt_message($message)
    {
        $this->generate_key();
        $key=$this->encrypt_key();
        $len=str_pad(dechex(strlen($key)),3,'0', STR_PAD_LEFT);
        $message=$this->rij->encrypt($message);
        if($message===false)
            return false;
        $message_len = str_pad(dechex(strlen($message)), 16, '0', STR_PAD_LEFT);
        return $len.$key.$message_len.$message;
    }

public function encrypt_key()
    {
        $this->rsa->loadKey($this->public_key);
        return $this->rsa->encrypt($this->sym_key);
    }

public function decrypt_message($message)
    {
        $len = substr($message, 0, 3);
        $len = hexdec($len);
        $key = substr($message, 3, $len);

$cipherlen = substr($message, ($len + 3), 16);
        $cipherlen = hexdec($cipherlen);

$data = substr($message, ($len + 19), $cipherlen);
        $rsa = new Crypt_RSA();
        $rsa->loadKey($this->public_key);
        $key=$rsa->decrypt($key);
        if ($key === false || empty($key))
        {
            return false;
        }
        $rij = new Crypt_Rijndael();
        $rij->setKey($key);
        return $rij->decrypt($data);
    }

public function encrypt_user_info($user,$pw)
    {
        $user_info['user']=$user;
        $user_info['pw']=$pw;
        $info=wp_json_encode($user_info);
        $this->rsa->loadKey($this->public_key);
        return $this->rsa->encrypt($info);
    }

public function encrypt_user_token($user,$token)
    {
        $user_info['user']=$user;
        $user_info['token']=$token;
        $info=wp_json_encode($user_info);
        $this->rsa->loadKey($this->public_key);
        return $this->rsa->encrypt($info);
    }

public function encrypt_token($token)
    {
        $this->rsa->loadKey($this->public_key);
        return $this->rsa->encrypt($token);
    }
}

class WPvivid_Crypt_File
{
    private $key;
    private $rij;

public function __construct($key)
    {
        include_once WPVIVID_PLUGIN_DIR . '/vendor/autoload.php';
        $this->rij= new Crypt_Rijndael();
        $this->key=$key;
    }

public function encrypt($file)
    {
        $encrypted_path = dirname($file).'/encrypt_'.basename($file).'.tmp';

$data_encrypted = 0;
        $buffer_size = 2097152;

$file_size = filesize($file);

$this->rij->setKey($this->key);
        $this->rij->disablePadding();
        $this->rij->enableContinuousBuffer();

if (file_exists($encrypted_path))
        {
            @wp_delete_file($encrypted_path);
        }
        $encrypted_handle = fopen($encrypted_path, 'wb+');

$file_handle = fopen($file, 'rb');

if($file_handle===false)
        {
            $ret['result']='failed';
            $ret['error']=$file.' file not found';
            return $ret;
        }

while ($data_encrypted < $file_size)
        {
            $file_part = fread($file_handle, $buffer_size);

$length = strlen($file_part);
            if (0 != $length % 16)
            {
                $pad = 16 - ($length % 16);
                $file_part = str_pad($file_part, $length + $pad, chr($pad));
            }

$encrypted_data = $this->rij->encrypt($file_part);

fwrite($encrypted_handle, $encrypted_data);

$data_encrypted += $buffer_size;
        }

fclose($encrypted_handle);
        fclose($file_handle);

$result_path = $file.'.crypt';

@rename($encrypted_path, $result_path);

$ret['result']='success';
        $ret['file_path']=$result_path;
        return $ret;
    }

public function decrypt($file)
    {
        $file_handle = fopen($file, 'rb');

if($file_handle===false)
        {
            $ret['result']='failed';
            $ret['error']=$file.' file not found';
            return $ret;
        }

$decrypted_path = dirname($file).'/decrypt_'.basename($file).'.tmp';

$decrypted_handle = fopen($decrypted_path, 'wb+');

$this->rij->setKey($this->key);
        $this->rij->disablePadding();
        $this->rij->enableContinuousBuffer();

$file_size = filesize($file);
        $bytes_decrypted = 0;
        $buffer_size =2097152;

while ($bytes_decrypted < $file_size)
        {
            $file_part = fread($file_handle, $buffer_size);

$length = strlen($file_part);
            if (0 != $length % 16) {
                $pad = 16 - ($length % 16);
                $file_part = str_pad($file_part, $length + $pad, chr($pad));
            }

$decrypted_data = $this->rij->decrypt($file_part);

$is_last_block = ($bytes_decrypted + strlen($decrypted_data) >= $file_size);

$write_bytes = min($file_size - $bytes_decrypted, strlen($decrypted_data));
            if ($is_last_block)
            {
                $is_padding = false;
                $last_byte = ord(substr($decrypted_data, -1, 1));
                if ($last_byte < 16)
                {
                    $is_padding = true;
                    for ($j = 1; $j<=$last_byte; $j++)
                    {
                        if (substr($decrypted_data, -$j, 1) != chr($last_byte))
                            $is_padding = false;
                    }
                }
                if ($is_padding)
                {
                    $write_bytes -= $last_byte;
                }
            }

fwrite($decrypted_handle, $decrypted_data, $write_bytes);
            $bytes_decrypted += $buffer_size;
        }

// close the main file handle
        fclose($decrypted_handle);
        // close original file
        fclose($file_handle);

$fullpath_new = preg_replace('/\.crypt$/', '', $file, 1).'.decrypted.zip';

@rename($decrypted_path, $fullpath_new);
        $ret['result']='success';
        $ret['file_path']=$fullpath_new;

return $ret;
    }
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
..	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
customclass	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
lib	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
lib2	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
mu-plugins	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
new_backup	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
snapshot	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
staging	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
upload-cleaner	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
zip	dir	-	capdqclb/capdqclb	drwxr-xr-x	2026-04-24 02:09:13
class-wpvivid-additional-db-method.php	text/x-php	8.73 KB	capdqclb/capdqclb	-rw-r--r--	2019-10-29 02:15:50
class-wpvivid-backup-database.php	text/x-php	5.3 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-backup-site.php	text/x-php	1.65 KB	capdqclb/capdqclb	-rw-r--r--	2019-04-22 03:13:48
class-wpvivid-backup-uploader.php	text/x-php	44.19 KB	capdqclb/capdqclb	-rw-r--r--	2026-01-16 05:02:18
class-wpvivid-backup.php	text/x-php	115.67 KB	capdqclb/capdqclb	-rw-r--r--	2025-01-20 05:23:26
class-wpvivid-backuplist.php	text/x-php	13.03 KB	capdqclb/capdqclb	-rw-r--r--	2023-07-06 04:06:34
class-wpvivid-backuptoremote.php	text/x-php	1.89 KB	capdqclb/capdqclb	-rw-r--r--	2020-01-13 03:54:16
class-wpvivid-compress-default.php	text/x-php	2.5 KB	capdqclb/capdqclb	-rw-r--r--	2022-01-28 11:10:06
class-wpvivid-crypt.php	text/x-php	6.56 KB	capdqclb/capdqclb	-rw-r--r--	2026-01-28 11:23:20
class-wpvivid-db-method.php	text/x-php	8.99 KB	capdqclb/capdqclb	-rw-r--r--	2019-12-10 03:48:54
class-wpvivid-downloader.php	text/x-php	6.53 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-error-log.php	text/x-php	6.23 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-export-import.php	text/x-php	123.75 KB	capdqclb/capdqclb	-rw-r--r--	2025-07-02 04:33:44
class-wpvivid-exporter.php	text/x-php	72.86 KB	capdqclb/capdqclb	-rw-r--r--	2025-10-16 04:31:30
class-wpvivid-function-realize.php	text/x-php	9.47 KB	capdqclb/capdqclb	-rw-r--r--	2023-02-28 05:19:58
class-wpvivid-i18n.php	text/x-php	899 B	capdqclb/capdqclb	-rw-r--r--	2020-07-27 03:07:22
class-wpvivid-importer.php	text/x-php	99.61 KB	capdqclb/capdqclb	-rw-r--r--	2025-10-16 04:31:30
class-wpvivid-interface-mainwp.php	text/x-php	25.15 KB	capdqclb/capdqclb	-rw-r--r--	2026-03-25 04:11:00
class-wpvivid-log.php	text/x-php	5.56 KB	capdqclb/capdqclb	-rw-r--r--	2024-08-05 04:35:26
class-wpvivid-mail-report.php	text/x-php	64.27 KB	capdqclb/capdqclb	-rw-r--r--	2026-01-16 05:02:18
class-wpvivid-migrate.php	text/x-php	76.51 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-25 04:22:42
class-wpvivid-mysqldump-method.php	text/x-php	100.82 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-mysqldump.php	text/x-php	43.72 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-public-interface.php	text/x-php	15.81 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-remote-collection.php	text/x-php	5.11 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-restore-data.php	text/x-php	1.56 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-schedule.php	text/x-php	13.44 KB	capdqclb/capdqclb	-rw-r--r--	2025-09-12 04:34:20
class-wpvivid-setting.php	text/x-php	23.26 KB	capdqclb/capdqclb	-rw-r--r--	2025-01-20 05:23:26
class-wpvivid-tab-page-container.php	text/x-php	9.69 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-taskmanager.php	text/x-php	22.64 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-tools.php	text/x-php	4.55 KB	capdqclb/capdqclb	-rw-r--r--	2024-08-05 04:35:26
class-wpvivid-upload.php	text/x-php	5.98 KB	capdqclb/capdqclb	-rw-r--r--	2024-03-18 04:39:00
class-wpvivid-zipclass.php	text/x-php	53.34 KB	capdqclb/capdqclb	-rw-r--r--	2024-07-01 04:48:28
class-wpvivid.php	text/x-php	320.13 KB	capdqclb/capdqclb	-rw-r--r--	2026-03-25 04:11:00
index.php	text/x-php	26 B	capdqclb/capdqclb	-rw-r--r--	2019-01-04 08:27:34