osint-mcp-server

Instructions

Implementation Reference

• src/dns/index.ts:359-400 (handler)

  The implementation of the dns_srv_discover logic in src/dns/index.ts.

  export async function dnsSrvDiscover(domain: string): Promise<SrvDiscoverResult> {
    const srvRecords: SrvRecord[] = [];
    const cnameRecords: CnameRecord[] = [];
  
    // SRV probes
    const srvPromises = SRV_PROBES.map(async (prefix) => {
      const fqdn = `${prefix}.${domain}`;
      try {
        const srvs = await dns.resolveSrv(fqdn);
        for (const s of srvs) {
          srvRecords.push({ name: fqdn, target: s.name, port: s.port, priority: s.priority, weight: s.weight });
        }
      } catch {
        // Not found
      }
    });
  
    // CNAME probes
    const cnamePromises = CNAME_PROBES.map(async (prefix) => {
      const fqdn = `${prefix}.${domain}`;
      try {
        const cnames = await dns.resolveCname(fqdn);
        for (const c of cnames) {
          cnameRecords.push({ name: fqdn, target: c });
        }
      } catch {
        // Not found — try A record to see if it exists
        try {
          const ips = await dns.resolve4(fqdn);
          if (ips.length > 0) {
            cnameRecords.push({ name: fqdn, target: ips.join(", ") });
          }
        } catch {
          // Not found
        }
      }
    });
  
    await Promise.all([...srvPromises, ...cnamePromises]);
  
    return { domain, srvRecords, cnameRecords };
  }

• src/protocol/tools.ts:68-75 (registration)

  The tool definition and registration for dns_srv_discover.

  const dnsSrvDiscoverTool: ToolDef = {
    name: "dns_srv_discover",
    description: "Discover SRV records and common service CNAMEs for a domain. Probes for SIP, XMPP, Autodiscover, LDAP, Kerberos, CalDAV, CardDAV, and checks CNAMEs for autodiscover, lyncdiscover, OWA, ADFS, etc.",
    schema: {
      domain: z.string().describe("Domain to probe"),
    },
    execute: async (args) => json(await dnsSrvDiscover(args.domain as string)),
  };