import {tr} from "tc-shared/i18n/localize"; import {LogCategory, logError, logTrace} from "tc-shared/log"; export enum RRType { A = 1, // a host address,[RFC1035], NS = 2, // an authoritative name server,[RFC1035], MD = 3, // a mail destination (OBSOLETE - use MX),[RFC1035], MF = 4, // a mail forwarder (OBSOLETE - use MX),[RFC1035], CNAME = 5, // the canonical name for an alias,[RFC1035], SOA = 6, // marks the start of a zone of authority,[RFC1035], MB = 7, // a mailbox domain name (EXPERIMENTAL),[RFC1035], MG = 8, // a mail group member (EXPERIMENTAL),[RFC1035], MR = 9, // a mail rename domain name (EXPERIMENTAL),[RFC1035], NULL_ = 10, // a null RR (EXPERIMENTAL),[RFC1035], WKS = 11, // a well known service description,[RFC1035], PTR = 12, // a domain name pointer,[RFC1035], HINFO = 13, // host information,[RFC1035], MINFO = 14, // mailbox or mail list information,[RFC1035], MX = 15, // mail exchange,[RFC1035], TXT = 16, // text strings,[RFC1035], RP = 17, // for Responsible Person,[RFC1183], AFSDB = 18, // for AFS Data Base location,[RFC1183][RFC5864], X25 = 19, // for X.25 PSDN address,[RFC1183], ISDN = 20, // for ISDN address,[RFC1183], RT = 21, // for Route Through,[RFC1183], NSAP = 22, // "for NSAP address, NSAP style A record",[RFC1706], NSAP_PTR = 23, // "for domain name pointer, NSAP style",[RFC1348][RFC1637][RFC1706], SIG = 24, // for security signature,[RFC4034][RFC3755][RFC2535][RFC2536][RFC2537][RFC2931][RFC3110][RFC3008], KEY = 25, // for security key,[RFC4034][RFC3755][RFC2535][RFC2536][RFC2537][RFC2539][RFC3008][RFC3110], PX = 26, // X.400 mail mapping information,[RFC2163], GPOS = 27, // Geographical Position,[RFC1712], AAAA = 28, // IP6 Address,[RFC3596], LOC = 29, // Location Information,[RFC1876], NXT = 30, // Next Domain (OBSOLETE),[RFC3755][RFC2535], EID = 31, // Endpoint Identifier,[Michael_Patton][http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt], NIMLOC = 32, // Nimrod Locator,[1][Michael_Patton][http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt], SRV = 33, // Server Selection,[1][RFC2782], ATMA = 34, // ATM Address,"[ ATM Forum Technical Committee, ""ATM Name System, V2.0"", Doc ID: AF-DANS-0152.000, July 2000. Available from and held in escrow by IANA.]", NAPTR = 35, // Naming Authority Pointer,[RFC2915][RFC2168][RFC3403], KX = 36, // Key Exchanger,[RFC2230], CERT = 37, //CERT, // [RFC4398], A6 = 38, // A6 (OBSOLETE - use AAAA),[RFC3226][RFC2874][RFC6563], DNAME = 39, //DNAME, // [RFC6672], SINK = 40, //SINK, // [Donald_E_Eastlake][http://tools.ietf.org/html/draft-eastlake-kitchen-sink], OPT = 41, //OPT, // [RFC6891][RFC3225], APL = 42, //APL, // [RFC3123], DS = 43, // Delegation Signer,[RFC4034][RFC3658], SSHFP = 44, // SSH Key Fingerprint,[RFC4255], IPSECKEY = 45, //IPSECKEY, // [RFC4025], RRSIG = 46, //RRSIG, // [RFC4034][RFC3755], NSEC = 47, //NSEC, // [RFC4034][RFC3755], DNSKEY = 48, //DNSKEY, // [RFC4034][RFC3755], DHCID = 49, //DHCID, // [RFC4701], NSEC3 = 50, //NSEC3, // [RFC5155], NSEC3PARAM = 51, //NSEC3PARAM, // [RFC5155], TLSA = 52, //TLSA, // [RFC6698], SMIMEA = 53, // S/MIME cert association,[RFC8162],SMIMEA/smimea-completed-template Unassigned = 54, // , HIP = 55, // Host Identity Protocol,[RFC8005], NINFO = 56, //NINFO [Jim_Reid], // NINFO/ninfo-completed-template RKEY = 57, //RKEY [Jim_Reid], // RKEY/rkey-completed-template TALINK = 58, // Trust Anchor LINK,[Wouter_Wijngaards],TALINK/talink-completed-template CDS = 59, // Child DS,[RFC7344],CDS/cds-completed-template CDNSKEY = 60, // DNSKEY(s) the Child wants reflected in DS,[RFC7344], OPENPGPKEY = 61, // OpenPGP Key,[RFC7929],OPENPGPKEY/openpgpkey-completed-template CSYNC = 62, // Child-To-Parent Synchronization,[RFC7477], ZONEMD = 63, // message digest for DNS zone,[draft-wessels-dns-zone-digest],ZONEMD/zonemd-completed-template //Unassigned = 64-98, SPF = 99, // [RFC7208], UINFO = 100, // [IANA-Reserved], UID = 101, // [IANA-Reserved], GID = 102, // [IANA-Reserved], UNSPEC = 103, // [IANA-Reserved], NID = 104, //[RFC6742], // ILNP/nid-completed-template L32 = 105, //[RFC6742], // ILNP/l32-completed-template L64 = 106, //[RFC6742], // ILNP/l64-completed-template LP = 107, //[RFC6742], // ILNP/lp-completed-template EUI48 = 108, // an EUI-48 address,[RFC7043],EUI48/eui48-completed-template EUI64 = 109, // an EUI-64 address,[RFC7043],EUI64/eui64-completed-template //Unassigned = 110-248, // , TKEY = 249, // Transaction Key,[RFC2930], TSIG = 250, // Transaction Signature,[RFC2845], IXFR = 251, // incremental transfer,[RFC1995], AXFR = 252, // transfer of an entire zone,[RFC1035][RFC5936], MAILB = 253, // "mailbox-related RRs (MB, MG or MR)",[RFC1035], MAILA = 254, // mail agent RRs (OBSOLETE - see MX),[RFC1035], ANY = 255, // A request for some or all records the server has available,[RFC1035][RFC6895][RFC8482], URI = 256, //URI [RFC7553], // URI/uri-completed-template CAA = 257, // Certification Authority Restriction,[RFC-ietf-lamps-rfc6844bis-07],CAA/caa-completed-template AVC = 258, // Application Visibility and Control,[Wolfgang_Riedel],AVC/avc-completed-template DOA = 259, // Digital Object Architecture,[draft-durand-doa-over-dns],DOA/doa-completed-template AMTRELAY = 260, // Automatic Multicast Tunneling Relay,[draft-ietf-mboned-driad-amt-discovery],AMTRELAY/amtrelay-completed-template //Unassigned = 261-32767, TA = 32768, // DNSSEC Trust Authorities,"[Sam_Weiler][http://cameo.library.cmu.edu/][ Deploying DNSSEC Without a Signed Root. Technical Report 1999-19, // Information Networking Institute, Carnegie Mellon University, April 2004.]", DLV = 32769, // DNSSEC Lookaside Validation,[RFC4431], //Unassigned = 32770-65279,, // , //Private use,65280-65534,,,, Reserved = 65535, } export enum ErrorCode { NOERROR = 0, FORMERR = 1, SERVFAIL = 2, NXDOMAIN = 3, NOTIMP = 4, REFUSED = 5, YXDOMAIN = 6, XRRSET = 7, NOTAUTH = 8, NOTZONE = 9 } interface DNSAnswer { name: string; type: RRType; TTL: null; data: string; } interface DNSQuery { name: string; type: RRType; } interface DNSResponse { Status: ErrorCode; Comment: string; TC: boolean; /* truncated */ RD: true; RA: true; AD: boolean; /* DNSSEC valid */ CD: boolean; /* client DNSSEC disabled */ Question: DNSQuery[]; Answer?: DNSAnswer[]; Authority?: DNSAnswer[]; Additional: any[]; } export async function executeDnsRequest(address: string, type: RRType) : Promise { const parameters = {}; parameters["name"] = address; parameters["type"] = type; parameters["cd"] = false; /* check disabled */ parameters["do"] = true; /* DNSSEC info */ const parameter_string = Object.keys(parameters).reduceRight((a, b) => a + "&" + b + "=" + encodeURIComponent(parameters[b])); const response = await fetch("https://dns.google/resolve?" + parameter_string, { method: "GET" }); if(response.status !== 200) { throw response.statusText || tr("server returned ") + response.status; } let response_string = "unknown"; let responseData: DNSResponse; try { response_string = await response.text(); responseData = JSON.parse(response_string); } catch(ex) { logError(LogCategory.DNS, tr("Failed to parse response data: %o. Data: %s"), ex, response_string); throw "failed to parse response"; } if(responseData.TC) { throw "truncated response"; } if(responseData.Status !== ErrorCode.NOERROR) { if(responseData.Status === ErrorCode.NXDOMAIN) { return []; } throw "dns error code " + responseData.Status; } logTrace(LogCategory.DNS, tr("Result for query %s (%s): %o"), address, RRType[type], responseData); if(!responseData.Answer) { return []; } return responseData.Answer.filter(e => (e.name === address || e.name === address + ".") && e.type === type); }