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Delphi ActiveX

RDAP Domain Lookup using rdap.org

See more HTTP Misc Examples

Demonstrates doing an RDAP domain lookup using the rdap.org public RDAP server.

Chilkat Delphi ActiveX Downloads

Delphi ActiveX
uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
http: TChilkatHttp;
sbResponse: TChilkatStringBuilder;
statusCode: Integer;
json: TChilkatJsonObject;
value: WideString;
rel: WideString;
href: WideString;
v_type: WideString;
strVal: WideString;
j: Integer;
count_j: Integer;
identifier: WideString;
k: Integer;
count_k: Integer;
json1: TChilkatJsonObject;
i1: Integer;
count_i1: Integer;
j1: Integer;
count_j1: Integer;
eventAction: WideString;
eventDate: WideString;
title: WideString;
objectClassName: WideString;
handle: WideString;
ldhName: WideString;
DelegationSigned: Integer;
i: Integer;
count_i: Integer;

begin
success := 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

http := TChilkatHttp.Create(Self);

// Send HTTP requests to https://rdap.org/<type>/<object>, where <type> is the object type (one of domain, ip, autnum, entity etc)
// and <object> is the object identifier (eg example.com, 192.168.0.1, 64496, etc).

// For example, here's a lookup for "oracle.com"
sbResponse := TChilkatStringBuilder.Create(Self);
success := http.QuickGetSb('https://rdap.org/domain/oracle.com',sbResponse.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

statusCode := http.LastStatus;
if (statusCode <> 200) then
  begin
    Memo1.Lines.Add('Error response:');
    Memo1.Lines.Add(sbResponse.GetAsString());
    Memo1.Lines.Add('status code: ' + IntToStr(statusCode));
    Exit;
  end;

// Load the JSON response and examine..

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

json := TChilkatJsonObject.Create(Self);
json.LoadSb(sbResponse.ControlInterface);
json.EmitCompact := 0;
Memo1.Lines.Add(json.Emit());

// Here's a sample response, and the parsing code generated from the above online tool follows..

// {
//   "objectClassName": "domain",
//   "handle": "607513_DOMAIN_COM-VRSN",
//   "ldhName": "ORACLE.COM",
//   "links": [
//     {
//       "value": "https:\/\/rdap.verisign.com\/com\/v1\/domain\/ORACLE.COM",
//       "rel": "self",
//       "href": "https:\/\/rdap.verisign.com\/com\/v1\/domain\/ORACLE.COM",
//       "type": "application\/rdap+json"
//     },
//     {
//       "value": "https:\/\/rdap.markmonitor.com\/rdap\/domain\/ORACLE.COM",
//       "rel": "related",
//       "href": "https:\/\/rdap.markmonitor.com\/rdap\/domain\/ORACLE.COM",
//       "type": "application\/rdap+json"
//     }
//   ],
//   "status": [
//     "client delete prohibited",
//     "client transfer prohibited",
//     "client update prohibited",
//     "server delete prohibited",
//     "server transfer prohibited",
//     "server update prohibited"
//   ],
//   "entities": [
//     {
//       "objectClassName": "entity",
//       "handle": "292",
//       "roles": [
//         "registrar"
//       ],
//       "publicIds": [
//         {
//           "type": "IANA Registrar ID",
//           "identifier": "292"
//         }
//       ],
//       "vcardArray": [
//         "vcard",
//         [
//           [
//             "version",
//             {},
//             "text",
//             "4.0"
//           ],
//           [
//             "fn",
//             {},
//             "text",
//             "MarkMonitor Inc."
//           ]
//         ]
//       ],
//       "entities": [
//         {
//           "objectClassName": "entity",
//           "roles": [
//             "abuse"
//           ],
//           "vcardArray": [
//             "vcard",
//             [
//               [
//                 "version",
//                 {},
//                 "text",
//                 "4.0"
//               ],
//               [
//                 "fn",
//                 {},
//                 "text",
//                 ""
//               ],
//               [
//                 "tel",
//                 {
//                   "type": "voice"
//                 },
//                 "uri",
//                 "tel:+1.2086851750"
//               ],
//               [
//                 "email",
//                 {},
//                 "text",
//                 "abusecomplaints@markmonitor.com"
//               ]
//             ]
//           ]
//         }
//       ]
//     }
//   ],
//   "events": [
//     {
//       "eventAction": "registration",
//       "eventDate": "1988-12-02T05:00:00Z"
//     },
//     {
//       "eventAction": "expiration",
//       "eventDate": "2025-12-01T05:00:00Z"
//     },
//     {
//       "eventAction": "last changed",
//       "eventDate": "2024-10-30T09:32:52Z"
//     },
//     {
//       "eventAction": "last update of RDAP database",
//       "eventDate": "2024-11-26T14:11:14Z"
//     }
//   ],
//   "secureDNS": {
//     "delegationSigned": false
//   },
//   "nameservers": [
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "A1-160.AKAM.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "A11-66.AKAM.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "A13-65.AKAM.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "A18-67.AKAM.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "NS1.P201.DNS.ORACLECLOUD.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "NS2.P201.DNS.ORACLECLOUD.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "NS3.P201.DNS.ORACLECLOUD.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "NS4.P201.DNS.ORACLECLOUD.NET"
//     }
//   ],
//   "rdapConformance": [
//     "rdap_level_0",
//     "icann_rdap_technical_implementation_guide_0",
//     "icann_rdap_response_profile_0"
//   ],
//   "notices": [
//     {
//       "title": "Terms of Use",
//       "description": [
//         "Service subject to Terms of Use."
//       ],
//       "links": [
//         {
//           "href": "https:\/\/www.verisign.com\/domain-names\/registration-data-access-protocol\/terms-service\/index.xhtml",
//           "type": "text\/html"
//         }
//       ]
//     },
//     {
//       "title": "Status Codes",
//       "description": [
//         "For more information on domain status codes, please visit https:\/\/icann.org\/epp"
//       ],
//       "links": [
//         {
//           "href": "https:\/\/icann.org\/epp",
//           "type": "text\/html"
//         }
//       ]
//     },
//     {
//       "title": "RDDS Inaccuracy Complaint Form",
//       "description": [
//         "URL of the ICANN RDDS Inaccuracy Complaint Form: https:\/\/icann.org\/wicf"
//       ],
//       "links": [
//         {
//           "href": "https:\/\/icann.org\/wicf",
//           "type": "text\/html"
//         }
//       ]
//     }
//   ]
// }

json1 := TChilkatJsonObject.Create(Self);

objectClassName := json.StringOf('objectClassName');
handle := json.StringOf('handle');
ldhName := json.StringOf('ldhName');
DelegationSigned := json.BoolOf('secureDNS.delegationSigned');
i := 0;
count_i := json.SizeOfArray('links');
while i < count_i do
  begin
    json.I := i;
    value := json.StringOf('links[i].value');
    rel := json.StringOf('links[i].rel');
    href := json.StringOf('links[i].href');
    v_type := json.StringOf('links[i].type');
    i := i + 1;
  end;

i := 0;
count_i := json.SizeOfArray('status');
while i < count_i do
  begin
    json.I := i;
    strVal := json.StringOf('status[i]');
    i := i + 1;
  end;

i := 0;
count_i := json.SizeOfArray('entities');
while i < count_i do
  begin
    json.I := i;
    objectClassName := json.StringOf('entities[i].objectClassName');
    handle := json.StringOf('entities[i].handle');
    j := 0;
    count_j := json.SizeOfArray('entities[i].roles');
    while j < count_j do
      begin
        json.J := j;
        strVal := json.StringOf('entities[i].roles[j]');
        j := j + 1;
      end;

    j := 0;
    count_j := json.SizeOfArray('entities[i].publicIds');
    while j < count_j do
      begin
        json.J := j;
        v_type := json.StringOf('entities[i].publicIds[j].type');
        identifier := json.StringOf('entities[i].publicIds[j].identifier');
        j := j + 1;
      end;

    j := 0;
    count_j := json.SizeOfArray('entities[i].vcardArray');
    while j < count_j do
      begin
        json.J := j;
        strVal := json.StringOf('entities[i].vcardArray[j]');
        k := 0;
        count_k := json.SizeOfArray('entities[i].vcardArray[j]');
        while k < count_k do
          begin
            json.K := k;
            json.ObjectOf2('entities[i].vcardArray[j][k]',json1.ControlInterface);

            i1 := 0;
            count_i1 := json1.SizeOfArray('');
            while i1 < count_i1 do
              begin
                json1.I := i1;
                strVal := json1.StringOf('[i]');
                i1 := i1 + 1;
              end;

            k := k + 1;
          end;

        j := j + 1;
      end;

    j := 0;
    count_j := json.SizeOfArray('entities[i].entities');
    while j < count_j do
      begin
        json.J := j;
        objectClassName := json.StringOf('entities[i].entities[j].objectClassName');
        k := 0;
        count_k := json.SizeOfArray('entities[i].entities[j].roles');
        while k < count_k do
          begin
            json.K := k;
            strVal := json.StringOf('entities[i].entities[j].roles[k]');
            k := k + 1;
          end;

        k := 0;
        count_k := json.SizeOfArray('entities[i].entities[j].vcardArray');
        while k < count_k do
          begin
            json.K := k;
            strVal := json.StringOf('entities[i].entities[j].vcardArray[k]');
            json.ObjectOf2('entities[i].entities[j].vcardArray[k]',json1.ControlInterface);

            i1 := 0;
            count_i1 := json1.SizeOfArray('');
            while i1 < count_i1 do
              begin
                json1.I := i1;
                j1 := 0;
                count_j1 := json1.SizeOfArray('[i]');
                while j1 < count_j1 do
                  begin
                    json1.J := j1;
                    strVal := json1.StringOf('[i][j]');
                    j1 := j1 + 1;
                  end;

                i1 := i1 + 1;
              end;

            k := k + 1;
          end;

        j := j + 1;
      end;

    i := i + 1;
  end;

i := 0;
count_i := json.SizeOfArray('events');
while i < count_i do
  begin
    json.I := i;
    eventAction := json.StringOf('events[i].eventAction');
    eventDate := json.StringOf('events[i].eventDate');
    i := i + 1;
  end;

i := 0;
count_i := json.SizeOfArray('nameservers');
while i < count_i do
  begin
    json.I := i;
    objectClassName := json.StringOf('nameservers[i].objectClassName');
    ldhName := json.StringOf('nameservers[i].ldhName');
    i := i + 1;
  end;

i := 0;
count_i := json.SizeOfArray('rdapConformance');
while i < count_i do
  begin
    json.I := i;
    strVal := json.StringOf('rdapConformance[i]');
    i := i + 1;
  end;

i := 0;
count_i := json.SizeOfArray('notices');
while i < count_i do
  begin
    json.I := i;
    title := json.StringOf('notices[i].title');
    j := 0;
    count_j := json.SizeOfArray('notices[i].description');
    while j < count_j do
      begin
        json.J := j;
        strVal := json.StringOf('notices[i].description[j]');
        j := j + 1;
      end;

    j := 0;
    count_j := json.SizeOfArray('notices[i].links');
    while j < count_j do
      begin
        json.J := j;
        href := json.StringOf('notices[i].links[j].href');
        v_type := json.StringOf('notices[i].links[j].type');
        j := j + 1;
      end;

    i := i + 1;
  end;
end;