package ocsp

import (
	"bytes"
	"encoding/hex"
	"reflect"
	"testing"
	"time"
)

func TestOCSPDecode(t *testing.T) {
	responseBytes, _ := hex.DecodeString(ocspResponseHex)
	resp, err := ParseResponse(responseBytes)
	if err != nil {
		t.Error(err)
	}

	expected := Response{
		Status:           0,
		SerialNumber:     []byte{0x1, 0xd0, 0xfa},
		RevocationReason: 0,
		ThisUpdate:       time.Date(2010, 7, 7, 15, 1, 5, 0, time.UTC),
		NextUpdate:       time.Date(2010, 7, 7, 18, 35, 17, 0, time.UTC),
	}

	if !reflect.DeepEqual(resp.ThisUpdate, expected.ThisUpdate) {
		t.Errorf("resp.ThisUpdate: got %d, want %d", resp.ThisUpdate, expected.ThisUpdate)
	}

	if !reflect.DeepEqual(resp.NextUpdate, expected.NextUpdate) {
		t.Errorf("resp.NextUpdate: got %d, want %d", resp.NextUpdate, expected.NextUpdate)
	}

	if resp.Status != expected.Status {
		t.Errorf("resp.Status: got %d, want %d", resp.Status, expected.Status)
	}

	if !bytes.Equal(resp.SerialNumber, expected.SerialNumber) {
		t.Errorf("resp.SerialNumber: got %x, want %x", resp.SerialNumber, expected.SerialNumber)
	}

	if resp.RevocationReason != expected.RevocationReason {
		t.Errorf("resp.RevocationReason: got %d, want %d", resp.RevocationReason, expected.RevocationReason)
	}
}

// This OCSP response was taken from Thawte's public OCSP responder.
// To recreate:
//   $ openssl s_client -tls1 -showcerts -servername www.google.com -connect www.google.com:443
// Copy and paste the first certificate into /tmp/cert.crt and the second into
// /tmp/intermediate.crt
//   $ openssl ocsp -issuer /tmp/intermediate.crt -cert /tmp/cert.crt -url http://ocsp.thawte.com -resp_text -respout /tmp/ocsp.der
// Then hex encode the result:
//   $ python -c 'print file("/tmp/ocsp.der", "r").read().encode("hex")'

const ocspResponseHex = "308206bc0a0100a08206b5308206b106092b0601050507300101048206a23082069e3081" +
	"c9a14e304c310b300906035504061302494c31163014060355040a130d5374617274436f" +
	"6d204c74642e312530230603550403131c5374617274436f6d20436c6173732031204f43" +
	"5350205369676e6572180f32303130303730373137333531375a30663064303c30090605" +
	"2b0e03021a050004146568874f40750f016a3475625e1f5c93e5a26d580414eb4234d098" +
	"b0ab9ff41b6b08f7cc642eef0e2c45020301d0fa8000180f323031303037303731353031" +
	"30355aa011180f32303130303730373138333531375a300d06092a864886f70d01010505" +
	"000382010100ab557ff070d1d7cebbb5f0ec91a15c3fed22eb2e1b8244f1b84545f013a4" +
	"fb46214c5e3fbfbebb8a56acc2b9db19f68fd3c3201046b3824d5ba689f99864328710cb" +
	"467195eb37d84f539e49f859316b32964dc3e47e36814ce94d6c56dd02733b1d0802f7ff" +
	"4eebdbbd2927dcf580f16cbc290f91e81b53cb365e7223f1d6e20a88ea064104875e0145" +
	"672b20fc14829d51ca122f5f5d77d3ad6c83889c55c7dc43680ba2fe3cef8b05dbcabdc0" +
	"d3e09aaf9725597f8c858c2fa38c0d6aed2e6318194420dd1a1137445d13e1c97ab47896" +
	"17a4e08925f46f867b72e3a4dc1f08cb870b2b0717f7207faa0ac512e628a029aba7457a" +
	"e63dcf3281e2162d9349a08204ba308204b6308204b23082039aa003020102020101300d" +
	"06092a864886f70d010105050030818c310b300906035504061302494c31163014060355" +
	"040a130d5374617274436f6d204c74642e312b3029060355040b13225365637572652044" +
	"69676974616c204365727469666963617465205369676e696e6731383036060355040313" +
	"2f5374617274436f6d20436c6173732031205072696d61727920496e7465726d65646961" +
	"746520536572766572204341301e170d3037313032353030323330365a170d3132313032" +
	"333030323330365a304c310b300906035504061302494c31163014060355040a130d5374" +
	"617274436f6d204c74642e312530230603550403131c5374617274436f6d20436c617373" +
	"2031204f435350205369676e657230820122300d06092a864886f70d0101010500038201" +
	"0f003082010a0282010100b9561b4c45318717178084e96e178df2255e18ed8d8ecc7c2b" +
	"7b51a6c1c2e6bf0aa3603066f132fe10ae97b50e99fa24b83fc53dd2777496387d14e1c3" +
	"a9b6a4933e2ac12413d085570a95b8147414a0bc007c7bcf222446ef7f1a156d7ea1c577" +
	"fc5f0facdfd42eb0f5974990cb2f5cefebceef4d1bdc7ae5c1075c5a99a93171f2b0845b" +
	"4ff0864e973fcfe32f9d7511ff87a3e943410c90a4493a306b6944359340a9ca96f02b66" +
	"ce67f028df2980a6aaee8d5d5d452b8b0eb93f923cc1e23fcccbdbe7ffcb114d08fa7a6a" +
	"3c404f825d1a0e715935cf623a8c7b59670014ed0622f6089a9447a7a19010f7fe58f841" +
	"29a2765ea367824d1c3bb2fda308530203010001a382015c30820158300c0603551d1301" +
	"01ff04023000300b0603551d0f0404030203a8301e0603551d250417301506082b060105" +
	"0507030906092b0601050507300105301d0603551d0e0416041445e0a36695414c5dd449" +
	"bc00e33cdcdbd2343e173081a80603551d230481a030819d8014eb4234d098b0ab9ff41b" +
	"6b08f7cc642eef0e2c45a18181a47f307d310b300906035504061302494c311630140603" +
	"55040a130d5374617274436f6d204c74642e312b3029060355040b132253656375726520" +
	"4469676974616c204365727469666963617465205369676e696e67312930270603550403" +
	"13205374617274436f6d2043657274696669636174696f6e20417574686f726974798201" +
	"0a30230603551d12041c301a8618687474703a2f2f7777772e737461727473736c2e636f" +
	"6d2f302c06096086480186f842010d041f161d5374617274436f6d205265766f63617469" +
	"6f6e20417574686f72697479300d06092a864886f70d01010505000382010100182d2215" +
	"8f0fc0291324fa8574c49bb8ff2835085adcbf7b7fc4191c397ab6951328253fffe1e5ec" +
	"2a7da0d50fca1a404e6968481366939e666c0a6209073eca57973e2fefa9ed1718e8176f" +
	"1d85527ff522c08db702e3b2b180f1cbff05d98128252cf0f450f7dd2772f4188047f19d" +
	"c85317366f94bc52d60f453a550af58e308aaab00ced33040b62bf37f5b1ab2a4f7f0f80" +
	"f763bf4d707bc8841d7ad9385ee2a4244469260b6f2bf085977af9074796048ecc2f9d48" +
	"a1d24ce16e41a9941568fec5b42771e118f16c106a54ccc339a4b02166445a167902e75e" +
	"6d8620b0825dcd18a069b90fd851d10fa8effd409deec02860d26d8d833f304b10669b42"