// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/device_bound_sessions/test_support.h"

#include "base/json/json_writer.h"
#include "base/strings/string_util.h"
#include "net/test/embedded_test_server/http_request.h"
#include "net/test/embedded_test_server/http_response.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace net::device_bound_sessions {

namespace {

std::unique_ptr<net::test_server::HttpResponse> RequestHandler(
    const GURL& base_url,
    const net::test_server::HttpRequest& request) {
  auto response = std::make_unique<net::test_server::BasicHttpResponse>();
  response->set_code(net::HTTP_OK);
  if (request.relative_url == "/dbsc_required") {
    response->AddCustomHeader(
        "Sec-Session-Registration",
        "(RS256 "
        "ES256);challenge=\"challenge_value\";path=\"dbsc_register_session\"");
    return response;
  } else if (request.relative_url == "/dbsc_register_session") {
    response->AddCustomHeader("Set-Cookie", "auth_cookie=abcdef0123;");

    const auto registration_response =
        base::Value::Dict()
            .Set("session_identifier", "session_id")
            .Set("refresh_url",
                 base_url.Resolve("/dbsc_refresh_session").spec())
            .Set("credentials",
                 base::Value::List().Append(base::Value::Dict()
                                                .Set("type", "cookie")
                                                .Set("name", "auth_cookie")
                                                .Set("attributes", "")));

    std::optional<std::string> json = base::WriteJson(registration_response);
    EXPECT_TRUE(json.has_value());
    response->set_content(*json);
    return response;
  }
  return nullptr;
}

}  // namespace

std::pair<base::span<const uint8_t>, std::string>
GetRS256SpkiAndJwkForTesting() {
  static constexpr uint8_t kSpki[] = {
      0x30, 0x82, 0x01, 0x22, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86,
      0xF7, 0x0D, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0F, 0x00,
      0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xB8, 0x72, 0x09,
      0xEA, 0xD7, 0x1D, 0x84, 0xD4, 0x9B, 0x22, 0xA1, 0xE8, 0x6A, 0x5F, 0xB1,
      0x6C, 0x03, 0x8B, 0x45, 0xDA, 0xF7, 0xE5, 0xF9, 0x0E, 0x95, 0xF2, 0x43,
      0xE6, 0x38, 0x19, 0x2B, 0x23, 0x29, 0x22, 0xA7, 0xE6, 0xF6, 0xEC, 0xB6,
      0x43, 0x61, 0xFB, 0x5F, 0x4C, 0xEA, 0xB8, 0x77, 0x9E, 0x43, 0x18, 0x76,
      0x2D, 0x16, 0x84, 0x44, 0xA1, 0x29, 0xA6, 0x93, 0xC3, 0x02, 0x1A, 0x11,
      0x1F, 0x2A, 0x3D, 0xDC, 0xE9, 0x44, 0xAE, 0x61, 0x9F, 0xC1, 0xDE, 0xDB,
      0xEA, 0x04, 0x01, 0xE5, 0x2A, 0xAB, 0x55, 0x67, 0xA6, 0x3D, 0xB3, 0x97,
      0xA7, 0x15, 0x02, 0x7B, 0xCA, 0x4C, 0x44, 0xA1, 0x4D, 0x2B, 0xB9, 0xBE,
      0xE3, 0x96, 0xC3, 0x17, 0x42, 0x4D, 0xCA, 0x60, 0xA8, 0x30, 0xC5, 0xD0,
      0xC9, 0x64, 0xD8, 0x39, 0xB0, 0x91, 0xA8, 0x22, 0x94, 0xA0, 0x61, 0x6B,
      0xE6, 0xF4, 0xD9, 0x64, 0x82, 0x17, 0xB3, 0x27, 0xF6, 0xDA, 0x3D, 0xEF,
      0xD8, 0x05, 0x87, 0x90, 0x1C, 0xE5, 0xB5, 0xB3, 0xB5, 0x41, 0x0E, 0xFC,
      0x45, 0xAD, 0x64, 0xCA, 0xB1, 0x39, 0x10, 0x63, 0x32, 0x67, 0x7E, 0x88,
      0x95, 0x0F, 0xFD, 0x8E, 0xCE, 0x5A, 0xF7, 0x5B, 0x60, 0x85, 0xA3, 0xB0,
      0x48, 0x26, 0x10, 0x19, 0xDA, 0x0A, 0xC5, 0xD3, 0x78, 0x6E, 0x0B, 0x86,
      0x78, 0x55, 0xB4, 0xA8, 0xFD, 0x1C, 0x81, 0x8A, 0x33, 0x18, 0x40, 0x1A,
      0x5F, 0x75, 0x87, 0xD1, 0x05, 0x2B, 0x2B, 0x53, 0x1F, 0xAD, 0x8E, 0x22,
      0xB3, 0xEE, 0x1C, 0xA1, 0x03, 0x97, 0xF1, 0xE0, 0x88, 0x0F, 0x98, 0xAF,
      0x05, 0x37, 0xB3, 0xC3, 0x95, 0x1C, 0x34, 0xDE, 0x39, 0xEB, 0x85, 0x12,
      0xEC, 0x3D, 0x77, 0x27, 0xA7, 0x5C, 0xEA, 0x39, 0x24, 0xD5, 0xE9, 0x49,
      0xCF, 0x97, 0x88, 0x4A, 0xF4, 0x01, 0x4F, 0xA4, 0x7E, 0x77, 0x57, 0x7F,
      0x73, 0x02, 0x03, 0x01, 0x00, 0x01};

  static constexpr char kJwkTemplate[] = R"json({
      "kty": "RSA",
      "n": "<n>",
      "e": "AQAB"})json";

  static constexpr char kRsaN[] =
      "uHIJ6tcdhNSbIqHoal-xbAOLRdr35fkOlfJD5jgZKyMpIqfm9uy2Q2H7X0zquHeeQxh2LRaE"
      "RKEpppPDAhoRHyo93OlErmGfwd7b6gQB5SqrVWemPbOXpxUCe8pMRKFNK7m-45bDF0JNymCo"
      "MMXQyWTYObCRqCKUoGFr5vTZZIIXsyf22j3v2AWHkBzltbO1QQ78Ra1kyrE5EGMyZ36IlQ_9"
      "js5a91tghaOwSCYQGdoKxdN4bguGeFW0qP0cgYozGEAaX3WH0QUrK1MfrY4is-4coQOX8eCI"
      "D5ivBTezw5UcNN4564US7D13J6dc6jkk1elJz5eISvQBT6R-d1d_cw";

  std::string jwk = kJwkTemplate;
  base::ReplaceFirstSubstringAfterOffset(&jwk, 0, "<n>", kRsaN);

  return {kSpki, jwk};
}

EmbeddedTestServer::HandleRequestCallback GetTestRequestHandler(
    const GURL& base_url) {
  return base::BindRepeating(&RequestHandler, base_url);
}

}  // namespace net::device_bound_sessions