| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // A binary wrapper for QuicClient. |
| // Connects to a host using QUIC, sends a request to the provided URL, and |
| // displays the response. |
| // |
| // Some usage examples: |
| // |
| // Standard request/response: |
| // quic_client www.google.com |
| // quic_client www.google.com --quiet |
| // quic_client www.google.com --port=443 |
| // |
| // Use a specific version: |
| // quic_client www.google.com --quic_version=23 |
| // |
| // Send a POST instead of a GET: |
| // quic_client www.google.com --body="this is a POST body" |
| // |
| // Append additional headers to the request: |
| // quic_client www.google.com --headers="Header-A: 1234; Header-B: 5678" |
| // |
| // Connect to a host different to the URL being requested: |
| // quic_client mail.google.com --host=www.google.com |
| // |
| // Connect to a specific IP: |
| // IP=`dig www.google.com +short | head -1` |
| // quic_client www.google.com --host=${IP} |
| // |
| // Send repeated requests and change ephemeral port between requests |
| // quic_client www.google.com --num_requests=10 |
| // |
| // Try to connect to a host which does not speak QUIC: |
| // quic_client www.example.com |
| // |
| // This tool is available as a built binary at: |
| // /google/data/ro/teams/quic/tools/quic_client |
| // After submitting changes to this file, you will need to follow the |
| // instructions at go/quic_client_binary_update |
| |
| #include "quic/tools/quic_toy_client.h" |
| |
| #include <iostream> |
| #include <memory> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "absl/strings/escaping.h" |
| #include "absl/strings/str_split.h" |
| #include "absl/strings/string_view.h" |
| #include "quic/core/quic_packets.h" |
| #include "quic/core/quic_server_id.h" |
| #include "quic/core/quic_utils.h" |
| #include "quic/core/quic_versions.h" |
| #include "quic/platform/api/quic_default_proof_providers.h" |
| #include "quic/platform/api/quic_ip_address.h" |
| #include "quic/platform/api/quic_socket_address.h" |
| #include "quic/platform/api/quic_system_event_loop.h" |
| #include "quic/tools/fake_proof_verifier.h" |
| #include "quic/tools/quic_url.h" |
| #include "common/platform/api/quiche_text_utils.h" |
| |
| namespace { |
| |
| using quic::QuicUrl; |
| using quiche::QuicheTextUtils; |
| |
| } // namespace |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| std::string, |
| host, |
| "", |
| "The IP or hostname to connect to. If not provided, the host " |
| "will be derived from the provided URL."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(int32_t, port, 0, "The port to connect to."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(std::string, |
| ip_version_for_host_lookup, |
| "", |
| "Only used if host address lookup is needed. " |
| "4=ipv4; 6=ipv6; otherwise=don't care."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(std::string, |
| body, |
| "", |
| "If set, send a POST with this body."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| std::string, |
| body_hex, |
| "", |
| "If set, contents are converted from hex to ascii, before " |
| "sending as body of a POST. e.g. --body_hex=\"68656c6c6f\""); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| std::string, |
| headers, |
| "", |
| "A semicolon separated list of key:value pairs to " |
| "add to request headers."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(bool, |
| quiet, |
| false, |
| "Set to true for a quieter output experience."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| std::string, |
| quic_version, |
| "", |
| "QUIC version to speak, e.g. 21. If not set, then all available " |
| "versions are offered in the handshake. Also supports wire versions " |
| "such as Q043 or T099."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| std::string, |
| connection_options, |
| "", |
| "Connection options as ASCII tags separated by commas, " |
| "e.g. \"ABCD,EFGH\""); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| std::string, |
| client_connection_options, |
| "", |
| "Client connection options as ASCII tags separated by commas, " |
| "e.g. \"ABCD,EFGH\""); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(bool, |
| quic_ietf_draft, |
| false, |
| "Use the IETF draft version. This also enables " |
| "required internal QUIC flags."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| bool, |
| version_mismatch_ok, |
| false, |
| "If true, a version mismatch in the handshake is not considered a " |
| "failure. Useful for probing a server to determine if it speaks " |
| "any version of QUIC."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| bool, |
| force_version_negotiation, |
| false, |
| "If true, start by proposing a version that is reserved for version " |
| "negotiation."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| bool, |
| multi_packet_chlo, |
| false, |
| "If true, add a transport parameter to make the ClientHello span two " |
| "packets. Only works with QUIC+TLS."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| bool, |
| redirect_is_success, |
| true, |
| "If true, an HTTP response code of 3xx is considered to be a " |
| "successful response, otherwise a failure."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(int32_t, |
| initial_mtu, |
| 0, |
| "Initial MTU of the connection."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| int32_t, |
| num_requests, |
| 1, |
| "How many sequential requests to make on a single connection."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(bool, |
| disable_certificate_verification, |
| false, |
| "If true, don't verify the server certificate."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| bool, |
| drop_response_body, |
| false, |
| "If true, drop response body immediately after it is received."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG( |
| bool, |
| disable_port_changes, |
| false, |
| "If true, do not change local port after each request."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(int32_t, |
| server_connection_id_length, |
| -1, |
| "Length of the server connection ID used."); |
| |
| DEFINE_QUIC_COMMAND_LINE_FLAG(int32_t, |
| client_connection_id_length, |
| -1, |
| "Length of the client connection ID used."); |
| |
| namespace quic { |
| |
| QuicToyClient::QuicToyClient(ClientFactory* client_factory) |
| : client_factory_(client_factory) {} |
| |
| int QuicToyClient::SendRequestsAndPrintResponses( |
| std::vector<std::string> urls) { |
| QuicUrl url(urls[0], "https"); |
| std::string host = GetQuicFlag(FLAGS_host); |
| if (host.empty()) { |
| host = url.host(); |
| } |
| int port = GetQuicFlag(FLAGS_port); |
| if (port == 0) { |
| port = url.port(); |
| } |
| |
| quic::ParsedQuicVersionVector versions = quic::CurrentSupportedVersions(); |
| |
| if (GetQuicFlag(FLAGS_quic_ietf_draft)) { |
| quic::QuicVersionInitializeSupportForIetfDraft(); |
| versions = {}; |
| for (const ParsedQuicVersion& version : AllSupportedVersions()) { |
| if (version.HasIetfQuicFrames() && |
| version.handshake_protocol == quic::PROTOCOL_TLS1_3) { |
| versions.push_back(version); |
| } |
| } |
| } |
| |
| std::string quic_version_string = GetQuicFlag(FLAGS_quic_version); |
| if (!quic_version_string.empty()) { |
| versions = quic::ParseQuicVersionVectorString(quic_version_string); |
| } |
| |
| if (versions.empty()) { |
| std::cerr << "No known version selected." << std::endl; |
| return 1; |
| } |
| |
| for (const quic::ParsedQuicVersion& version : versions) { |
| quic::QuicEnableVersion(version); |
| } |
| |
| if (GetQuicFlag(FLAGS_force_version_negotiation)) { |
| versions.insert(versions.begin(), |
| quic::QuicVersionReservedForNegotiation()); |
| } |
| |
| const int32_t num_requests(GetQuicFlag(FLAGS_num_requests)); |
| std::unique_ptr<quic::ProofVerifier> proof_verifier; |
| if (GetQuicFlag(FLAGS_disable_certificate_verification)) { |
| proof_verifier = std::make_unique<FakeProofVerifier>(); |
| } else { |
| proof_verifier = quic::CreateDefaultProofVerifier(url.host()); |
| } |
| |
| QuicConfig config; |
| std::string connection_options_string = GetQuicFlag(FLAGS_connection_options); |
| if (!connection_options_string.empty()) { |
| config.SetConnectionOptionsToSend( |
| ParseQuicTagVector(connection_options_string)); |
| } |
| std::string client_connection_options_string = |
| GetQuicFlag(FLAGS_client_connection_options); |
| if (!client_connection_options_string.empty()) { |
| config.SetClientConnectionOptions( |
| ParseQuicTagVector(client_connection_options_string)); |
| } |
| if (GetQuicFlag(FLAGS_multi_packet_chlo)) { |
| // Make the ClientHello span multiple packets by adding a custom transport |
| // parameter. |
| constexpr auto kCustomParameter = |
| static_cast<TransportParameters::TransportParameterId>(0x173E); |
| std::string custom_value(2000, '?'); |
| config.custom_transport_parameters_to_send()[kCustomParameter] = |
| custom_value; |
| } |
| |
| int address_family_for_lookup = AF_UNSPEC; |
| if (GetQuicFlag(FLAGS_ip_version_for_host_lookup) == "4") { |
| address_family_for_lookup = AF_INET; |
| } else if (GetQuicFlag(FLAGS_ip_version_for_host_lookup) == "6") { |
| address_family_for_lookup = AF_INET6; |
| } |
| |
| // Build the client, and try to connect. |
| std::unique_ptr<QuicSpdyClientBase> client = client_factory_->CreateClient( |
| url.host(), host, address_family_for_lookup, port, versions, config, |
| std::move(proof_verifier)); |
| |
| if (client == nullptr) { |
| std::cerr << "Failed to create client." << std::endl; |
| return 1; |
| } |
| |
| int32_t initial_mtu = GetQuicFlag(FLAGS_initial_mtu); |
| client->set_initial_max_packet_length( |
| initial_mtu != 0 ? initial_mtu : quic::kDefaultMaxPacketSize); |
| client->set_drop_response_body(GetQuicFlag(FLAGS_drop_response_body)); |
| const int32_t server_connection_id_length = |
| GetQuicFlag(FLAGS_server_connection_id_length); |
| if (server_connection_id_length >= 0) { |
| client->set_server_connection_id_length(server_connection_id_length); |
| } |
| const int32_t client_connection_id_length = |
| GetQuicFlag(FLAGS_client_connection_id_length); |
| if (client_connection_id_length >= 0) { |
| client->set_client_connection_id_length(client_connection_id_length); |
| } |
| if (!client->Initialize()) { |
| std::cerr << "Failed to initialize client." << std::endl; |
| return 1; |
| } |
| if (!client->Connect()) { |
| quic::QuicErrorCode error = client->session()->error(); |
| if (error == quic::QUIC_INVALID_VERSION) { |
| std::cerr << "Failed to negotiate version with " << host << ":" << port |
| << ". " << client->session()->error_details() << std::endl; |
| // 0: No error. |
| // 20: Failed to connect due to QUIC_INVALID_VERSION. |
| return GetQuicFlag(FLAGS_version_mismatch_ok) ? 0 : 20; |
| } |
| std::cerr << "Failed to connect to " << host << ":" << port << ". " |
| << quic::QuicErrorCodeToString(error) << " " |
| << client->session()->error_details() << std::endl; |
| return 1; |
| } |
| std::cerr << "Connected to " << host << ":" << port << std::endl; |
| |
| // Construct the string body from flags, if provided. |
| std::string body = GetQuicFlag(FLAGS_body); |
| if (!GetQuicFlag(FLAGS_body_hex).empty()) { |
| QUICHE_DCHECK(GetQuicFlag(FLAGS_body).empty()) |
| << "Only set one of --body and --body_hex."; |
| body = absl::HexStringToBytes(GetQuicFlag(FLAGS_body_hex)); |
| } |
| |
| // Construct a GET or POST request for supplied URL. |
| spdy::Http2HeaderBlock header_block; |
| header_block[":method"] = body.empty() ? "GET" : "POST"; |
| header_block[":scheme"] = url.scheme(); |
| header_block[":authority"] = url.HostPort(); |
| header_block[":path"] = url.PathParamsQuery(); |
| |
| // Append any additional headers supplied on the command line. |
| const std::string headers = GetQuicFlag(FLAGS_headers); |
| for (absl::string_view sp : absl::StrSplit(headers, ';')) { |
| QuicheTextUtils::RemoveLeadingAndTrailingWhitespace(&sp); |
| if (sp.empty()) { |
| continue; |
| } |
| std::vector<absl::string_view> kv = absl::StrSplit(sp, ':'); |
| QuicheTextUtils::RemoveLeadingAndTrailingWhitespace(&kv[0]); |
| QuicheTextUtils::RemoveLeadingAndTrailingWhitespace(&kv[1]); |
| header_block[kv[0]] = kv[1]; |
| } |
| |
| // Make sure to store the response, for later output. |
| client->set_store_response(true); |
| |
| for (int i = 0; i < num_requests; ++i) { |
| // Send the request. |
| client->SendRequestAndWaitForResponse(header_block, body, /*fin=*/true); |
| |
| // Print request and response details. |
| if (!GetQuicFlag(FLAGS_quiet)) { |
| std::cout << "Request:" << std::endl; |
| std::cout << "headers:" << header_block.DebugString(); |
| if (!GetQuicFlag(FLAGS_body_hex).empty()) { |
| // Print the user provided hex, rather than binary body. |
| std::cout << "body:\n" |
| << QuicheTextUtils::HexDump( |
| absl::HexStringToBytes(GetQuicFlag(FLAGS_body_hex))) |
| << std::endl; |
| } else { |
| std::cout << "body: " << body << std::endl; |
| } |
| std::cout << std::endl; |
| |
| if (!client->preliminary_response_headers().empty()) { |
| std::cout << "Preliminary response headers: " |
| << client->preliminary_response_headers() << std::endl; |
| std::cout << std::endl; |
| } |
| |
| std::cout << "Response:" << std::endl; |
| std::cout << "headers: " << client->latest_response_headers() |
| << std::endl; |
| std::string response_body = client->latest_response_body(); |
| if (!GetQuicFlag(FLAGS_body_hex).empty()) { |
| // Assume response is binary data. |
| std::cout << "body:\n" |
| << QuicheTextUtils::HexDump(response_body) << std::endl; |
| } else { |
| std::cout << "body: " << response_body << std::endl; |
| } |
| std::cout << "trailers: " << client->latest_response_trailers() |
| << std::endl; |
| } |
| |
| if (!client->connected()) { |
| std::cerr << "Request caused connection failure. Error: " |
| << quic::QuicErrorCodeToString(client->session()->error()) |
| << std::endl; |
| return 1; |
| } |
| |
| int response_code = client->latest_response_code(); |
| if (response_code >= 200 && response_code < 300) { |
| std::cout << "Request succeeded (" << response_code << ")." << std::endl; |
| } else if (response_code >= 300 && response_code < 400) { |
| if (GetQuicFlag(FLAGS_redirect_is_success)) { |
| std::cout << "Request succeeded (redirect " << response_code << ")." |
| << std::endl; |
| } else { |
| std::cout << "Request failed (redirect " << response_code << ")." |
| << std::endl; |
| return 1; |
| } |
| } else { |
| std::cout << "Request failed (" << response_code << ")." << std::endl; |
| return 1; |
| } |
| |
| // Change the ephemeral port if there are more requests to do. |
| if (!GetQuicFlag(FLAGS_disable_port_changes) && i + 1 < num_requests) { |
| if (!client->ChangeEphemeralPort()) { |
| std::cerr << "Failed to change ephemeral port." << std::endl; |
| return 1; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| } // namespace quic |
