it-tools-mcp/build/tools/forensic/fang_url/index.js

MCP-compliant server access to over 100 IT tools and utilities commonly used by developers, system administrators, and IT professionals.

import { z } from "zod";
export function registerFangUrl(server) {
    server.registerTool("fang_url", {
        inputSchema: {
            text: z.string().describe("Text containing URLs to fang/defang"),
            operation: z.enum(["defang", "refang"]).describe("Whether to defang (make safe) or refang (restore) URLs")
        },
        // VS Code compliance annotations
        annotations: {
            title: "Fang Url",
            readOnlyHint: false
        }
    }, async ({ text, operation }) => {
        try {
            let result = text;
            if (operation === "defang") {
                // Defang URLs to make them safe
                result = result
                    .replace(/https?:\/\//g, 'hxxp://') // Replace http/https with hxxp
                    .replace(/\./g, '[.]') // Replace dots with [.]
                    .replace(/@/g, '[@]') // Replace @ with [@]
                    .replace(/:/g, '[:]'); // Replace colons with [:]
            }
            else {
                // Refang URLs to restore them
                result = result
                    .replace(/hxxp:\/\//g, 'http://') // Restore http
                    .replace(/hxxps:\/\//g, 'https://') // Restore https
                    .replace(/\[\.\]/g, '.') // Restore dots
                    .replace(/\[@\]/g, '@') // Restore @
                    .replace(/\[:\]/g, ':'); // Restore colons
            }
            return {
                content: [{
                        type: "text",
                        text: `URL ${operation === "defang" ? "Defanging" : "Refanging"} Results:

Original:
${text}

${operation === "defang" ? "Defanged" : "Refanged"}:
${result}

Note: ${operation === "defang"
                            ? "Defanged URLs are safe to share and won't be clickable."
                            : "Refanged URLs have been restored to their original form."}`
                    }]
            };
        }
        catch (error) {
            return {
                content: [{
                        type: "text",
                        text: `Error processing URLs: ${error instanceof Error ? error.message : 'Unknown error'}`
                    }]
            };
        }
    });
}