locker-mcp/dist/file-manager.js

MCP server for file locking and access control for AI code tools

"use strict";
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var __importStar = (this && this.__importStar) || (function () {
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Object.defineProperty(exports, "__esModule", { value: true });
exports.FileManager = void 0;
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
class FileManager {
    static addLockComment(filePath, id, state) {
        this.validateFilePath(filePath);
        if (!fs.existsSync(filePath)) {
            throw new Error(`File does not exist: ${filePath}`);
        }
        const content = fs.readFileSync(filePath, 'utf-8');
        if (this.hasLockComment(content)) {
            throw new Error(`File already has a lock comment: ${filePath}`);
        }
        const lockComment = `${this.LOCK_COMMENT_PREFIX} ${id} STATE=${state}`;
        const newContent = lockComment + '\n' + content;
        fs.writeFileSync(filePath, newContent, 'utf-8');
    }
    static removeLockComment(filePath) {
        this.validateFilePath(filePath);
        if (!fs.existsSync(filePath)) {
            throw new Error(`File does not exist: ${filePath}`);
        }
        const content = fs.readFileSync(filePath, 'utf-8');
        if (!this.hasLockComment(content)) {
            return; // No lock comment to remove
        }
        const lines = content.split('\n');
        const filteredLines = lines.filter(line => !this.LOCK_COMMENT_REGEX.test(line));
        const newContent = filteredLines.join('\n');
        fs.writeFileSync(filePath, newContent, 'utf-8');
    }
    static updateLockComment(filePath, id, state) {
        this.validateFilePath(filePath);
        if (!fs.existsSync(filePath)) {
            throw new Error(`File does not exist: ${filePath}`);
        }
        const content = fs.readFileSync(filePath, 'utf-8');
        if (!this.hasLockComment(content)) {
            throw new Error(`File does not have a lock comment: ${filePath}`);
        }
        const lockComment = `${this.LOCK_COMMENT_PREFIX} ${id} STATE=${state}`;
        const lines = content.split('\n');
        const updatedLines = lines.map(line => this.LOCK_COMMENT_REGEX.test(line) ? lockComment : line);
        const newContent = updatedLines.join('\n');
        fs.writeFileSync(filePath, newContent, 'utf-8');
    }
    static hasLockComment(content) {
        const lines = content.split('\n');
        return lines.some(line => this.LOCK_COMMENT_REGEX.test(line));
    }
    static extractLockInfo(content) {
        const lines = content.split('\n');
        const lockLine = lines.find(line => this.LOCK_COMMENT_REGEX.test(line));
        if (!lockLine) {
            return null;
        }
        const idMatch = lockLine.match(/LOCKED: ([a-zA-Z0-9-]+)/);
        const stateMatch = lockLine.match(/STATE=([\w-]+)/);
        if (!idMatch || !stateMatch) {
            return null;
        }
        return {
            id: idMatch[1],
            state: stateMatch[1]
        };
    }
    static validateFilePath(filePath) {
        const normalizedPath = path.normalize(filePath);
        // Prevent path traversal attacks
        if (normalizedPath.includes('..')) {
            throw new Error(`Invalid file path: ${filePath}`);
        }
        // For testing: allow temp directories
        if (normalizedPath.includes('/tmp/') || normalizedPath.includes('\\temp\\') || normalizedPath.includes('/var/folders/')) {
            return;
        }
        // Ensure path is not absolute outside of current working directory (in production)
        if (path.isAbsolute(normalizedPath) && !normalizedPath.startsWith(process.cwd())) {
            throw new Error(`File path outside project directory: ${filePath}`);
        }
    }
}
exports.FileManager = FileManager;
FileManager.LOCK_COMMENT_PREFIX = '// LOCKED:';
FileManager.LOCK_COMMENT_REGEX = /^\/\/ LOCKED: [a-zA-Z0-9-]+ STATE=[\w-]+$/;
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