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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/updater/test/server.h"
#include <algorithm>
#include <iterator>
#include <list>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/time/time.h"
#include "chrome/updater/test/http_request.h"
#include "chrome/updater/test/integration_test_commands.h"
#include "chrome/updater/test/integration_tests_impl.h"
#include "net/http/http_status_code.h"
#include "net/test/embedded_test_server/embedded_test_server.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"
#include "third_party/zlib/google/compression_utils.h"
namespace updater::test {
namespace {
std::string SerializeRequest(HttpRequest& request) {
std::vector<std::string> request_strs;
request_strs.push_back("Request:");
request_strs.push_back(
base::StringPrintf("Path: %s", request.relative_url.c_str()));
request_strs.push_back("Headers: {");
for (const auto& [name, value] : request.headers) {
request_strs.push_back(
base::StringPrintf(" %s: %s", name.c_str(), value.c_str()));
}
request_strs.push_back("}");
request_strs.push_back(
base::StringPrintf("Content: %s", GetPrintableContent(request).c_str()));
return base::JoinString(request_strs, "\n ");
}
} // namespace
ScopedServer::ScopedServer() {
test_server_->RegisterRequestHandler(base::BindRepeating(
&ScopedServer::HandleRequest, base::Unretained(this)));
EXPECT_TRUE((test_server_handle_ = test_server_->StartAndReturnHandle()));
}
ScopedServer::ScopedServer(
scoped_refptr<IntegrationTestCommands> integration_test_commands)
: ScopedServer() {
ConfigureTestMode(integration_test_commands.get());
}
ScopedServer::~ScopedServer() {
for (const auto& request_matcher_group : request_matcher_groups_) {
// Forces `request_matcher` to log to help debugging, unless the
// matcher matches the empty request.
ADD_FAILURE() << "Unmet expectation: ";
std::ranges::for_each(request_matcher_group, [](request::Matcher matcher) {
matcher.Run(HttpRequest());
});
}
}
void ScopedServer::ConfigureTestMode(IntegrationTestCommands* commands) {
CHECK(commands);
commands->EnterTestMode(update_url(), crash_upload_url(),
device_management_url(), {}, base::Minutes(5),
base::Seconds(2), base::Seconds(10));
}
void ScopedServer::ExpectOnce(request::MatcherGroup request_matcher_group,
const std::string& response_body,
net::HttpStatusCode http_status_code) {
request_matcher_groups_.push_back(std::move(request_matcher_group));
responses_.emplace_back(
http_status_code,
base::BindRepeating([](const std::string& response_body,
bool v4) { return response_body; },
response_body));
}
void ScopedServer::ExpectOnce(
request::MatcherGroup request_matcher_group,
base::RepeatingCallback<std::string(bool)> response_body_provider,
net::HttpStatusCode http_status_code) {
request_matcher_groups_.push_back(std::move(request_matcher_group));
responses_.emplace_back(http_status_code, response_body_provider);
}
std::unique_ptr<net::test_server::HttpResponse> ScopedServer::HandleRequest(
const net::test_server::HttpRequest& req) {
HttpRequest request(req);
VLOG(0) << "Handle request at path:" << request.relative_url;
VLOG(3) << SerializeRequest(request);
auto response = std::make_unique<net::test_server::BasicHttpResponse>();
if (request_matcher_groups_.empty()) {
VLOG(0) << "Unexpected request.";
ADD_FAILURE() << "Unexpected " << SerializeRequest(request);
response->set_code(net::HTTP_INTERNAL_SERVER_ERROR);
return response;
}
if (!std::ranges::all_of(request_matcher_groups_.front(),
[&request](request::Matcher matcher) {
return matcher.Run(request);
})) {
VLOG(0) << "Request did not match.";
ADD_FAILURE() << "Unmatched " << SerializeRequest(request);
response->set_code(net::HTTP_INTERNAL_SERVER_ERROR);
return response;
}
if (base::StartsWith(request.relative_url, download_path()) &&
!download_delay_.is_zero()) {
VLOG(0) << "Delay download response by: " << download_delay_;
response.reset(new net::test_server::DelayedHttpResponse(download_delay_));
}
const auto& [response_code, response_body_provider] = responses_.front();
const std::string response_body =
response_body_provider.Run(re2::RE2::PartialMatch(
request.decoded_content, "\"protocol\": *\"4\\.0\""));
response->set_code(response_code);
if (base::StartsWith(request.relative_url, device_management_path())) {
response->set_content_type("application/x-protobuf");
}
if (base::StartsWith(request.relative_url, proxy_pac_path())) {
VLOG(1) << "PAC proxy settings: [ " << response_body << "]";
}
if (gzip_response_) {
if (!request.headers.contains("Accept-Encoding") ||
request.headers["Accept-Encoding"].find("gzip") == std::string::npos) {
VLOG(0) << "gzip `Accept-Encoding` not found in request.";
ADD_FAILURE() << "gzip `Accept-Encoding` not found in request, "
<< SerializeRequest(request);
response->set_code(net::HTTP_INTERNAL_SERVER_ERROR);
return response;
}
std::string compressed_body;
if (!compression::GzipCompress(response_body, &compressed_body)) {
VLOG(0) << "gzip compression failed.";
ADD_FAILURE() << "gzip compression failed, " << SerializeRequest(request);
response->set_code(net::HTTP_INTERNAL_SERVER_ERROR);
return response;
}
response->AddCustomHeader("Content-Encoding", "gzip");
response->set_content(compressed_body);
} else {
response->set_content(response_body);
}
request_matcher_groups_.pop_front();
responses_.pop_front();
return response;
}
} // namespace updater::test
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