<?php
namespace React\Tests\Dns\Protocol;
use PHPUnit\Framework\TestCase;
use React\Dns\Protocol\Parser;
use React\Dns\Model\Message;
class ParserTest extends TestCase
{
public function setUp()
{
$this->parser = new Parser();
}
/**
* @dataProvider provideConvertTcpDumpToBinary
*/
public function testConvertTcpDumpToBinary($expected, $data)
{
$this->assertSame($expected, $this->convertTcpDumpToBinary($data));
}
public function provideConvertTcpDumpToBinary()
{
return array(
array(chr(0x72).chr(0x62), "72 62"),
array(chr(0x72).chr(0x62).chr(0x01).chr(0x00), "72 62 01 00"),
array(chr(0x72).chr(0x62).chr(0x01).chr(0x00).chr(0x00).chr(0x01), "72 62 01 00 00 01"),
array(chr(0x01).chr(0x00).chr(0x01), "01 00 01"),
);
}
public function testParseRequest()
{
$data = "";
$data .= "72 62 01 00 00 01 00 00 00 00 00 00"; // header
$data .= "04 69 67 6f 72 02 69 6f 00"; // question: igor.io
$data .= "00 01 00 01"; // question: type A, class IN
$data = $this->convertTcpDumpToBinary($data);
$request = $this->parser->parseMessage($data);
$this->assertFalse(isset($request->data));
$this->assertFalse(isset($request->consumed));
$this->assertSame(0x7262, $request->id);
$this->assertSame(false, $request->qr);
$this->assertSame(Message::OPCODE_QUERY, $request->opcode);
$this->assertSame(false, $request->aa);
$this->assertSame(false, $request->tc);
$this->assertSame(true, $request->rd);
$this->assertSame(false, $request->ra);
$this->assertSame(Message::RCODE_OK, $request->rcode);
$this->assertCount(1, $request->questions);
$this->assertSame('igor.io', $request->questions[0]->name);
$this->assertSame(Message::TYPE_A, $request->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $request->questions[0]->class);
}
public function testParseResponse()
{
$data = "";
$data .= "72 62 81 80 00 01 00 01 00 00 00 00"; // header
$data .= "04 69 67 6f 72 02 69 6f 00"; // question: igor.io
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "c0 0c"; // answer: offset pointer to igor.io
$data .= "00 01 00 01"; // answer: type A, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 04"; // answer: rdlength 4
$data .= "b2 4f a9 83"; // answer: rdata 178.79.169.131
$data = $this->convertTcpDumpToBinary($data);
$response = $this->parser->parseMessage($data);
$this->assertSame(0x7262, $response->id);
$this->assertSame(true, $response->qr);
$this->assertSame(Message::OPCODE_QUERY, $response->opcode);
$this->assertSame(false, $response->aa);
$this->assertSame(false, $response->tc);
$this->assertSame(true, $response->rd);
$this->assertSame(true, $response->ra);
$this->assertSame(Message::RCODE_OK, $response->rcode);
$this->assertCount(1, $response->questions);
$this->assertSame('igor.io', $response->questions[0]->name);
$this->assertSame(Message::TYPE_A, $response->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $response->questions[0]->class);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_A, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame('178.79.169.131', $response->answers[0]->data);
}
public function testParseRequestWithTwoQuestions()
{
$data = "";
$data .= "72 62 01 00 00 02 00 00 00 00 00 00"; // header
$data .= "04 69 67 6f 72 02 69 6f 00"; // question: igor.io
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "03 77 77 77 04 69 67 6f 72 02 69 6f 00"; // question: www.igor.io
$data .= "00 01 00 01"; // question: type A, class IN
$data = $this->convertTcpDumpToBinary($data);
$request = $this->parser->parseMessage($data);
$this->assertCount(2, $request->questions);
$this->assertSame('igor.io', $request->questions[0]->name);
$this->assertSame(Message::TYPE_A, $request->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $request->questions[0]->class);
$this->assertSame('www.igor.io', $request->questions[1]->name);
$this->assertSame(Message::TYPE_A, $request->questions[1]->type);
$this->assertSame(Message::CLASS_IN, $request->questions[1]->class);
}
public function testParseAnswerWithInlineData()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 01 00 01"; // answer: type A, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 04"; // answer: rdlength 4
$data .= "b2 4f a9 83"; // answer: rdata 178.79.169.131
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_A, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame('178.79.169.131', $response->answers[0]->data);
}
public function testParseAnswerWithExcessiveTtlReturnsZeroTtl()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 01 00 01"; // answer: type A, class IN
$data .= "ff ff ff ff"; // answer: ttl 2^32 - 1
$data .= "00 04"; // answer: rdlength 4
$data .= "b2 4f a9 83"; // answer: rdata 178.79.169.131
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_A, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(0, $response->answers[0]->ttl);
$this->assertSame('178.79.169.131', $response->answers[0]->data);
}
public function testParseAnswerWithTtlExactlyBoundaryReturnsZeroTtl()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 01 00 01"; // answer: type A, class IN
$data .= "80 00 00 00"; // answer: ttl 2^31
$data .= "00 04"; // answer: rdlength 4
$data .= "b2 4f a9 83"; // answer: rdata 178.79.169.131
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_A, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(0, $response->answers[0]->ttl);
$this->assertSame('178.79.169.131', $response->answers[0]->data);
}
public function testParseAnswerWithMaximumTtlReturnsExactTtl()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 01 00 01"; // answer: type A, class IN
$data .= "7f ff ff ff"; // answer: ttl 2^31 - 1
$data .= "00 04"; // answer: rdlength 4
$data .= "b2 4f a9 83"; // answer: rdata 178.79.169.131
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_A, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(0x7fffffff, $response->answers[0]->ttl);
$this->assertSame('178.79.169.131', $response->answers[0]->data);
}
public function testParseAnswerWithUnknownType()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "23 28 00 01"; // answer: type 9000, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 05"; // answer: rdlength 5
$data .= "68 65 6c 6c 6f"; // answer: rdata "hello"
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(9000, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame('hello', $response->answers[0]->data);
}
public function testParseResponseWithCnameAndOffsetPointers()
{
$data = "";
$data .= "9e 8d 81 80 00 01 00 01 00 00 00 00"; // header
$data .= "04 6d 61 69 6c 06 67 6f 6f 67 6c 65 03 63 6f 6d 00"; // question: mail.google.com
$data .= "00 05 00 01"; // question: type CNAME, class IN
$data .= "c0 0c"; // answer: offset pointer to mail.google.com
$data .= "00 05 00 01"; // answer: type CNAME, class IN
$data .= "00 00 a8 9c"; // answer: ttl 43164
$data .= "00 0f"; // answer: rdlength 15
$data .= "0a 67 6f 6f 67 6c 65 6d 61 69 6c 01 6c"; // answer: rdata googlemail.l.
$data .= "c0 11"; // answer: rdata offset pointer to google.com
$data = $this->convertTcpDumpToBinary($data);
$response = $this->parser->parseMessage($data);
$this->assertCount(1, $response->questions);
$this->assertSame('mail.google.com', $response->questions[0]->name);
$this->assertSame(Message::TYPE_CNAME, $response->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $response->questions[0]->class);
$this->assertCount(1, $response->answers);
$this->assertSame('mail.google.com', $response->answers[0]->name);
$this->assertSame(Message::TYPE_CNAME, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(43164, $response->answers[0]->ttl);
$this->assertSame('googlemail.l.google.com', $response->answers[0]->data);
}
public function testParseAAAAResponse()
{
$data = "";
$data .= "cd 72 81 80 00 01 00 01 00 00 00 00 06"; // header
$data .= "67 6f 6f 67 6c 65 03 63 6f 6d 00"; // question: google.com
$data .= "00 1c 00 01"; // question: type AAAA, class IN
$data .= "c0 0c"; // answer: offset pointer to google.com
$data .= "00 1c 00 01"; // answer: type AAAA, class IN
$data .= "00 00 01 2b"; // answer: ttl 299
$data .= "00 10"; // answer: rdlength 16
$data .= "2a 00 14 50 40 09 08 09 00 00 00 00 00 00 20 0e"; // answer: 2a00:1450:4009:809::200e
$data = $this->convertTcpDumpToBinary($data);
$response = $this->parser->parseMessage($data);
$this->assertSame(0xcd72, $response->id);
$this->assertSame(true, $response->qr);
$this->assertSame(Message::OPCODE_QUERY, $response->opcode);
$this->assertSame(false, $response->aa);
$this->assertSame(false, $response->tc);
$this->assertSame(true, $response->rd);
$this->assertSame(true, $response->ra);
$this->assertSame(Message::RCODE_OK, $response->rcode);
$this->assertCount(1, $response->questions);
$this->assertSame('google.com', $response->questions[0]->name);
$this->assertSame(Message::TYPE_AAAA, $response->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $response->questions[0]->class);
$this->assertCount(1, $response->answers);
$this->assertSame('google.com', $response->answers[0]->name);
$this->assertSame(Message::TYPE_AAAA, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(299, $response->answers[0]->ttl);
$this->assertSame('2a00:1450:4009:809::200e', $response->answers[0]->data);
}
public function testParseTXTResponse()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 10 00 01"; // answer: type TXT, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 06"; // answer: rdlength 6
$data .= "05 68 65 6c 6c 6f"; // answer: rdata length 5: hello
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_TXT, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame(array('hello'), $response->answers[0]->data);
}
public function testParseTXTResponseMultiple()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 10 00 01"; // answer: type TXT, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 0C"; // answer: rdlength 12
$data .= "05 68 65 6c 6c 6f 05 77 6f 72 6c 64"; // answer: rdata length 5: hello, length 5: world
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_TXT, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame(array('hello', 'world'), $response->answers[0]->data);
}
public function testParseMXResponse()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 0f 00 01"; // answer: type MX, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 09"; // answer: rdlength 9
$data .= "00 0a 05 68 65 6c 6c 6f 00"; // answer: rdata priority 10: hello
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_MX, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame(array('priority' => 10, 'target' => 'hello'), $response->answers[0]->data);
}
public function testParseSRVResponse()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 21 00 01"; // answer: type SRV, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 0C"; // answer: rdlength 12
$data .= "00 0a 00 14 1F 90 04 74 65 73 74 00"; // answer: rdata priority 10, weight 20, port 8080 test
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_SRV, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame(
array(
'priority' => 10,
'weight' => 20,
'port' => 8080,
'target' => 'test'
),
$response->answers[0]->data
);
}
public function testParseMessageResponseWithTwoAnswers()
{
$data = "";
$data .= "bc 73 81 80 00 01 00 02 00 00 00 00"; // header
$data .= "02 69 6f 0d 77 68 6f 69 73 2d 73 65 72 76 65 72 73 03 6e 65 74 00";
// question: io.whois-servers.net
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "c0 0c"; // answer: offset pointer to io.whois-servers.net
$data .= "00 05 00 01"; // answer: type CNAME, class IN
$data .= "00 00 00 29"; // answer: ttl 41
$data .= "00 0e"; // answer: rdlength 14
$data .= "05 77 68 6f 69 73 03 6e 69 63 02 69 6f 00"; // answer: rdata whois.nic.io
$data .= "c0 32"; // answer: offset pointer to whois.nic.io
$data .= "00 01 00 01"; // answer: type CNAME, class IN
$data .= "00 00 0d f7"; // answer: ttl 3575
$data .= "00 04"; // answer: rdlength 4
$data .= "c1 df 4e 98"; // answer: rdata 193.223.78.152
$data = $this->convertTcpDumpToBinary($data);
$response = $this->parser->parseMessage($data);
$this->assertCount(1, $response->questions);
$this->assertSame('io.whois-servers.net', $response->questions[0]->name);
$this->assertSame(Message::TYPE_A, $response->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $response->questions[0]->class);
$this->assertCount(2, $response->answers);
$this->assertSame('io.whois-servers.net', $response->answers[0]->name);
$this->assertSame(Message::TYPE_CNAME, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(41, $response->answers[0]->ttl);
$this->assertSame('whois.nic.io', $response->answers[0]->data);
$this->assertSame('whois.nic.io', $response->answers[1]->name);
$this->assertSame(Message::TYPE_A, $response->answers[1]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[1]->class);
$this->assertSame(3575, $response->answers[1]->ttl);
$this->assertSame('193.223.78.152', $response->answers[1]->data);
}
public function testParseMessageResponseWithTwoAuthorityRecords()
{
$data = "";
$data .= "bc 73 81 80 00 01 00 00 00 02 00 00"; // header
$data .= "02 69 6f 0d 77 68 6f 69 73 2d 73 65 72 76 65 72 73 03 6e 65 74 00";
// question: io.whois-servers.net
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "c0 0c"; // authority: offset pointer to io.whois-servers.net
$data .= "00 05 00 01"; // authority: type CNAME, class IN
$data .= "00 00 00 29"; // authority: ttl 41
$data .= "00 0e"; // authority: rdlength 14
$data .= "05 77 68 6f 69 73 03 6e 69 63 02 69 6f 00"; // authority: rdata whois.nic.io
$data .= "c0 32"; // authority: offset pointer to whois.nic.io
$data .= "00 01 00 01"; // authority: type CNAME, class IN
$data .= "00 00 0d f7"; // authority: ttl 3575
$data .= "00 04"; // authority: rdlength 4
$data .= "c1 df 4e 98"; // authority: rdata 193.223.78.152
$data = $this->convertTcpDumpToBinary($data);
$response = $this->parser->parseMessage($data);
$this->assertCount(1, $response->questions);
$this->assertSame('io.whois-servers.net', $response->questions[0]->name);
$this->assertSame(Message::TYPE_A, $response->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $response->questions[0]->class);
$this->assertCount(0, $response->answers);
$this->assertCount(2, $response->authority);
$this->assertSame('io.whois-servers.net', $response->authority[0]->name);
$this->assertSame(Message::TYPE_CNAME, $response->authority[0]->type);
$this->assertSame(Message::CLASS_IN, $response->authority[0]->class);
$this->assertSame(41, $response->authority[0]->ttl);
$this->assertSame('whois.nic.io', $response->authority[0]->data);
$this->assertSame('whois.nic.io', $response->authority[1]->name);
$this->assertSame(Message::TYPE_A, $response->authority[1]->type);
$this->assertSame(Message::CLASS_IN, $response->authority[1]->class);
$this->assertSame(3575, $response->authority[1]->ttl);
$this->assertSame('193.223.78.152', $response->authority[1]->data);
}
public function testParseMessageResponseWithAnswerAndAdditionalRecord()
{
$data = "";
$data .= "bc 73 81 80 00 01 00 01 00 00 00 01"; // header
$data .= "02 69 6f 0d 77 68 6f 69 73 2d 73 65 72 76 65 72 73 03 6e 65 74 00";
// question: io.whois-servers.net
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "c0 0c"; // answer: offset pointer to io.whois-servers.net
$data .= "00 05 00 01"; // answer: type CNAME, class IN
$data .= "00 00 00 29"; // answer: ttl 41
$data .= "00 0e"; // answer: rdlength 14
$data .= "05 77 68 6f 69 73 03 6e 69 63 02 69 6f 00"; // answer: rdata whois.nic.io
$data .= "c0 32"; // additional: offset pointer to whois.nic.io
$data .= "00 01 00 01"; // additional: type CNAME, class IN
$data .= "00 00 0d f7"; // additional: ttl 3575
$data .= "00 04"; // additional: rdlength 4
$data .= "c1 df 4e 98"; // additional: rdata 193.223.78.152
$data = $this->convertTcpDumpToBinary($data);
$response = $this->parser->parseMessage($data);
$this->assertCount(1, $response->questions);
$this->assertSame('io.whois-servers.net', $response->questions[0]->name);
$this->assertSame(Message::TYPE_A, $response->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $response->questions[0]->class);
$this->assertCount(1, $response->answers);
$this->assertSame('io.whois-servers.net', $response->answers[0]->name);
$this->assertSame(Message::TYPE_CNAME, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(41, $response->answers[0]->ttl);
$this->assertSame('whois.nic.io', $response->answers[0]->data);
$this->assertCount(0, $response->authority);
$this->assertCount(1, $response->additional);
$this->assertSame('whois.nic.io', $response->additional[0]->name);
$this->assertSame(Message::TYPE_A, $response->additional[0]->type);
$this->assertSame(Message::CLASS_IN, $response->additional[0]->class);
$this->assertSame(3575, $response->additional[0]->ttl);
$this->assertSame('193.223.78.152', $response->additional[0]->data);
}
public function testParseNSResponse()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 02 00 01"; // answer: type NS, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 07"; // answer: rdlength 7
$data .= "05 68 65 6c 6c 6f 00"; // answer: rdata hello
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_NS, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame('hello', $response->answers[0]->data);
}
public function testParseSSHFPResponse()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 2c 00 01"; // answer: type SSHFP, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 06"; // answer: rdlength 6
$data .= "01 01 69 ac 09 0c"; // answer: algorithm 1 (RSA), type 1 (SHA-1), fingerprint "69ac090c"
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_SSHFP, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame(array('algorithm' => 1, 'type' => 1, 'fingerprint' => '69ac090c'), $response->answers[0]->data);
}
public function testParseSOAResponse()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 06 00 01"; // answer: type SOA, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 27"; // answer: rdlength 39
$data .= "02 6e 73 05 68 65 6c 6c 6f 00"; // answer: rdata ns.hello (mname)
$data .= "01 65 05 68 65 6c 6c 6f 00"; // answer: rdata e.hello (rname)
$data .= "78 49 28 D5 00 00 2a 30 00 00 0e 10"; // answer: rdata 2018060501, 10800, 3600
$data .= "00 09 3a 80 00 00 0e 10"; // answer: 605800, 3600
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_SOA, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame(
array(
'mname' => 'ns.hello',
'rname' => 'e.hello',
'serial' => 2018060501,
'refresh' => 10800,
'retry' => 3600,
'expire' => 604800,
'minimum' => 3600
),
$response->answers[0]->data
);
}
public function testParseCAAResponse()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "01 01 00 01"; // answer: type CAA, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 16"; // answer: rdlength 22
$data .= "00 05 69 73 73 75 65"; // answer: rdata 0, issue
$data .= "6c 65 74 73 65 6e 63 72 79 70 74 2e 6f 72 67"; // answer: letsencrypt.org
$response = $this->parseAnswer($data);
$this->assertCount(1, $response->answers);
$this->assertSame('igor.io', $response->answers[0]->name);
$this->assertSame(Message::TYPE_CAA, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86400, $response->answers[0]->ttl);
$this->assertSame(array('flag' => 0, 'tag' => 'issue', 'value' => 'letsencrypt.org'), $response->answers[0]->data);
}
public function testParsePTRResponse()
{
$data = "";
$data .= "5d d8 81 80 00 01 00 01 00 00 00 00"; // header
$data .= "01 34 01 34 01 38 01 38 07 69 6e"; // question: 4.4.8.8.in-addr.arpa
$data .= "2d 61 64 64 72 04 61 72 70 61 00"; // question (continued)
$data .= "00 0c 00 01"; // question: type PTR, class IN
$data .= "c0 0c"; // answer: offset pointer to rdata
$data .= "00 0c 00 01"; // answer: type PTR, class IN
$data .= "00 01 51 7f"; // answer: ttl 86399
$data .= "00 20"; // answer: rdlength 32
$data .= "13 67 6f 6f 67 6c 65 2d 70 75 62 6c 69 63 2d 64"; // answer: rdata google-public-dns-b.google.com.
$data .= "6e 73 2d 62 06 67 6f 6f 67 6c 65 03 63 6f 6d 00";
$data = $this->convertTcpDumpToBinary($data);
$response = $this->parser->parseMessage($data);
$this->assertSame(0x5dd8, $response->id);
$this->assertSame(true, $response->qr);
$this->assertSame(Message::OPCODE_QUERY, $response->opcode);
$this->assertSame(false, $response->aa);
$this->assertSame(false, $response->tc);
$this->assertSame(true, $response->rd);
$this->assertSame(true, $response->ra);
$this->assertSame(Message::RCODE_OK, $response->rcode);
$this->assertCount(1, $response->questions);
$this->assertSame('4.4.8.8.in-addr.arpa', $response->questions[0]->name);
$this->assertSame(Message::TYPE_PTR, $response->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $response->questions[0]->class);
$this->assertCount(1, $response->answers);
$this->assertSame('4.4.8.8.in-addr.arpa', $response->answers[0]->name);
$this->assertSame(Message::TYPE_PTR, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86399, $response->answers[0]->ttl);
$this->assertSame('google-public-dns-b.google.com', $response->answers[0]->data);
}
public function testParsePTRResponseWithSpecialCharactersEscaped()
{
$data = "";
$data .= "5d d8 81 80 00 01 00 01 00 00 00 00"; // header
$data .= "08 5f 70 72 69 6e 74 65 72 04 5f 74 63 70 06 64 6e 73 2d 73 64 03 6f 72 67 00"; // question: _printer._tcp.dns-sd.org
$data .= "00 0c 00 01"; // question: type PTR, class IN
$data .= "c0 0c"; // answer: offset pointer to rdata
$data .= "00 0c 00 01"; // answer: type PTR, class IN
$data .= "00 01 51 7f"; // answer: ttl 86399
$data .= "00 17"; // answer: rdlength 23
$data .= "14 33 72 64 2e 20 46 6c 6f 6f 72 20 43 6f 70 79 20 52 6f 6f 6d"; // answer: rdata "3rd. Floor Copy Room" …
$data .= "c0 0c"; // answer: offset pointer to rdata
$data = $this->convertTcpDumpToBinary($data);
$response = $this->parser->parseMessage($data);
$this->assertCount(1, $response->questions);
$this->assertSame('_printer._tcp.dns-sd.org', $response->questions[0]->name);
$this->assertSame(Message::TYPE_PTR, $response->questions[0]->type);
$this->assertSame(Message::CLASS_IN, $response->questions[0]->class);
$this->assertCount(1, $response->answers);
$this->assertSame('_printer._tcp.dns-sd.org', $response->answers[0]->name);
$this->assertSame(Message::TYPE_PTR, $response->answers[0]->type);
$this->assertSame(Message::CLASS_IN, $response->answers[0]->class);
$this->assertSame(86399, $response->answers[0]->ttl);
$this->assertSame('3rd\.\ Floor\ Copy\ Room._printer._tcp.dns-sd.org', $response->answers[0]->data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseIncompleteQuestionThrows()
{
$data = "";
$data .= "72 62 01 00 00 01 00 00 00 00 00 00"; // header
$data .= "04 69 67 6f 72 02 69 6f 00"; // question: igor.io
//$data .= "00 01 00 01"; // question: type A, class IN
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseIncompleteQuestionLabelThrows()
{
$data = "";
$data .= "72 62 01 00 00 01 00 00 00 00 00 00"; // header
$data .= "04 69 67"; // question: ig …?
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseIncompleteQuestionNameThrows()
{
$data = "";
$data .= "72 62 01 00 00 01 00 00 00 00 00 00"; // header
$data .= "04 69 67 6f 72"; // question: igor. …?
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseIncompleteOffsetPointerInQuestionNameThrows()
{
$data = "";
$data .= "72 62 01 00 00 01 00 00 00 00 00 00"; // header
$data .= "ff"; // question: incomplete offset pointer
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidOffsetPointerInQuestionNameThrows()
{
$data = "";
$data .= "72 62 01 00 00 01 00 00 00 00 00 00"; // header
$data .= "ff ff"; // question: offset pointer to invalid address
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidOffsetPointerToSameLabelInQuestionNameThrows()
{
$data = "";
$data .= "72 62 01 00 00 01 00 00 00 00 00 00"; // header
$data .= "c0 0c"; // question: offset pointer to invalid address
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidOffsetPointerToStartOfMessageInQuestionNameThrows()
{
$data = "";
$data .= "72 62 01 00 00 01 00 00 00 00 00 00"; // header
$data .= "c0 00"; // question: offset pointer to start of message
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseIncompleteAnswerFieldsThrows()
{
$data = "";
$data .= "72 62 81 80 00 01 00 01 00 00 00 00"; // header
$data .= "04 69 67 6f 72 02 69 6f 00"; // question: igor.io
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "c0 0c"; // answer: offset pointer to igor.io
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseMessageResponseWithIncompleteAuthorityRecordThrows()
{
$data = "";
$data .= "72 62 81 80 00 01 00 00 00 01 00 00"; // header
$data .= "04 69 67 6f 72 02 69 6f 00"; // question: igor.io
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "c0 0c"; // authority: offset pointer to igor.io
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseMessageResponseWithIncompleteAdditionalRecordThrows()
{
$data = "";
$data .= "72 62 81 80 00 01 00 00 00 00 00 01"; // header
$data .= "04 69 67 6f 72 02 69 6f 00"; // question: igor.io
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "c0 0c"; // additional: offset pointer to igor.io
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseIncompleteAnswerRecordDataThrows()
{
$data = "";
$data .= "72 62 81 80 00 01 00 01 00 00 00 00"; // header
$data .= "04 69 67 6f 72 02 69 6f 00"; // question: igor.io
$data .= "00 01 00 01"; // question: type A, class IN
$data .= "c0 0c"; // answer: offset pointer to igor.io
$data .= "00 01 00 01"; // answer: type A, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 04"; // answer: rdlength 4
$data = $this->convertTcpDumpToBinary($data);
$this->parser->parseMessage($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidNSResponseWhereDomainNameIsMissing()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 02 00 01"; // answer: type NS, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 00"; // answer: rdlength 0
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidAResponseWhereIPIsMissing()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 01 00 01"; // answer: type A, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 00"; // answer: rdlength 0
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidAAAAResponseWhereIPIsMissing()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 1c 00 01"; // answer: type AAAA, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 00"; // answer: rdlength 0
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidTXTResponseWhereTxtChunkExceedsLimit()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 10 00 01"; // answer: type TXT, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 06"; // answer: rdlength 6
$data .= "06 68 65 6c 6c 6f 6f"; // answer: rdata length 6: helloo
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidMXResponseWhereDomainNameIsIncomplete()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 0f 00 01"; // answer: type MX, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 08"; // answer: rdlength 8
$data .= "00 0a 05 68 65 6c 6c 6f"; // answer: rdata priority 10: hello (missing label end)
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidMXResponseWhereDomainNameIsMissing()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 0f 00 01"; // answer: type MX, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 02"; // answer: rdlength 2
$data .= "00 0a"; // answer: rdata priority 10
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidSRVResponseWhereDomainNameIsIncomplete()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 21 00 01"; // answer: type SRV, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 0b"; // answer: rdlength 11
$data .= "00 0a 00 14 1F 90 04 74 65 73 74"; // answer: rdata priority 10, weight 20, port 8080 test (missing label end)
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidSRVResponseWhereDomainNameIsMissing()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 21 00 01"; // answer: type SRV, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 06"; // answer: rdlength 6
$data .= "00 0a 00 14 1F 90"; // answer: rdata priority 10, weight 20, port 8080
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidSSHFPResponseWhereRecordIsTooSmall()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 2c 00 01"; // answer: type SSHFP, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 02"; // answer: rdlength 2
$data .= "01 01"; // answer: algorithm 1 (RSA), type 1 (SHA), missing fingerprint
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidSOAResponseWhereFlagsAreMissing()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "00 06 00 01"; // answer: type SOA, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 13"; // answer: rdlength 19
$data .= "02 6e 73 05 68 65 6c 6c 6f 00"; // answer: rdata ns.hello (mname)
$data .= "01 65 05 68 65 6c 6c 6f 00"; // answer: rdata e.hello (rname)
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidCAAResponseEmtpyData()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "01 01 00 01"; // answer: type CAA, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 00"; // answer: rdlength 0
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidCAAResponseMissingValue()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "01 01 00 01"; // answer: type CAA, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 07"; // answer: rdlength 22
$data .= "00 05 69 73 73 75 65"; // answer: rdata 0, issue
$this->parseAnswer($data);
}
/**
* @expectedException InvalidArgumentException
*/
public function testParseInvalidCAAResponseIncompleteTag()
{
$data = "";
$data .= "04 69 67 6f 72 02 69 6f 00"; // answer: igor.io
$data .= "01 01 00 01"; // answer: type CAA, class IN
$data .= "00 01 51 80"; // answer: ttl 86400
$data .= "00 0c"; // answer: rdlength 22
$data .= "00 ff 69 73 73 75 65"; // answer: rdata 0, issue (incomplete due to invalid tag length)
$data .= "68 65 6c 6c 6f"; // answer: hello
$this->parseAnswer($data);
}
private function convertTcpDumpToBinary($input)
{
// sudo ngrep -d en1 -x port 53
return pack('H*', str_replace(' ', '', $input));
}
private function parseAnswer($answerData)
{
$data = "72 62 81 80 00 00 00 01 00 00 00 00"; // header with one answer only
$data .= $answerData;
$data = $this->convertTcpDumpToBinary($data);
return $this->parser->parseMessage($data);
}
}