319 lines
11 KiB
C++
319 lines
11 KiB
C++
// Copyright 2020 Google LLC. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#include <packager/file/http_file.h>
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#include <gtest/gtest.h>
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#include <memory>
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#include <vector>
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#include <absl/strings/str_split.h>
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#include <packager/file/file.h>
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#include <packager/file/file_closer.h>
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#include <packager/media/test/test_web_server.h>
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#include <nlohmann/json.hpp>
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#define ASSERT_JSON_STRING(json, key, value) \
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ASSERT_EQ(GetJsonString((json), (key)), (value)) << "JSON is " << (json)
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namespace shaka {
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namespace {
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const std::vector<std::string> kNoHeaders;
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const std::string kNoContentType;
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const std::string kBinaryContentType = "application/octet-stream";
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const int kDefaultTestTimeout = 10; // For a local, embedded server
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using FilePtr = std::unique_ptr<HttpFile, FileCloser>;
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// Handles keys with dots, indicating a nested field.
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std::string GetJsonString(const nlohmann::json& json,
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const std::string& combined_key) {
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std::vector<std::string> keys = absl::StrSplit(combined_key, '.');
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nlohmann::json current = json;
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for (const std::string& key : keys) {
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if (!current.contains(key)) {
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return "";
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}
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current = current[key];
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}
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if (current.is_string()) {
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return current.get<std::string>();
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}
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return "";
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}
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nlohmann::json HandleResponse(const FilePtr& file) {
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std::string result;
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while (true) {
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char buffer[64 * 1024];
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auto ret = file->Read(buffer, sizeof(buffer));
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if (ret < 0)
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return nullptr;
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if (ret == 0)
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break;
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result.append(buffer, buffer + ret);
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}
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VLOG(1) << "Response:\n" << result;
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nlohmann::json value = nlohmann::json::parse(result,
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/* parser callback */ nullptr,
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/* allow exceptions */ false);
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return value;
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}
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// Quoting gtest docs:
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// "For each TEST_F, GoogleTest will create a fresh test fixture object,
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// immediately call SetUp(), run the test body, call TearDown(), and then
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// delete the test fixture object."
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// So we don't need a TearDown method. The destructor on TestWebServer is good
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// enough.
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class HttpFileTest : public testing::Test {
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protected:
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void SetUp() override { ASSERT_TRUE(server_.Start()); }
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media::TestWebServer server_;
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};
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} // namespace
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TEST_F(HttpFileTest, BasicGet) {
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FilePtr file(new HttpFile(HttpMethod::kGet, server_.ReflectUrl(),
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kNoContentType, kNoHeaders, kDefaultTestTimeout));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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auto json = HandleResponse(file);
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ASSERT_TRUE(json.is_object());
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ASSERT_TRUE(file.release()->Close());
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ASSERT_JSON_STRING(json, "method", "GET");
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}
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TEST_F(HttpFileTest, CustomHeaders) {
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std::vector<std::string> headers{"Host: foo", "X-My-Header: Something"};
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FilePtr file(new HttpFile(HttpMethod::kGet, server_.ReflectUrl(),
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kNoContentType, headers, kDefaultTestTimeout));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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auto json = HandleResponse(file);
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ASSERT_TRUE(json.is_object());
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ASSERT_TRUE(file.release()->Close());
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ASSERT_JSON_STRING(json, "method", "GET");
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ASSERT_JSON_STRING(json, "headers.Host", "foo");
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ASSERT_JSON_STRING(json, "headers.X-My-Header", "Something");
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}
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TEST_F(HttpFileTest, BasicPost) {
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FilePtr file(new HttpFile(HttpMethod::kPost, server_.ReflectUrl(),
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kBinaryContentType, kNoHeaders,
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kDefaultTestTimeout));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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const std::string data = "abcd";
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ASSERT_EQ(file->Write(data.data(), data.size()),
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static_cast<int64_t>(data.size()));
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// Signal that there will be no more writes.
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// If we don't do this, the request can hang in libcurl.
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file->CloseForWriting();
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auto json = HandleResponse(file);
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ASSERT_TRUE(json.is_object());
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ASSERT_TRUE(file.release()->Close());
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ASSERT_JSON_STRING(json, "method", "POST");
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ASSERT_JSON_STRING(json, "body", data);
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ASSERT_JSON_STRING(json, "headers.Content-Type", kBinaryContentType);
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// Curl may choose to send chunked or not based on the data. We request
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// chunked encoding, but don't control if it is actually used. If we get
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// chunked transfer, there is no Content-Length header reflected back to us.
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if (!GetJsonString(json, "headers.Content-Length").empty()) {
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ASSERT_JSON_STRING(json, "headers.Content-Length",
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std::to_string(data.size()));
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} else {
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ASSERT_JSON_STRING(json, "headers.Transfer-Encoding", "chunked");
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}
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}
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TEST_F(HttpFileTest, BasicPut) {
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FilePtr file(new HttpFile(HttpMethod::kPut, server_.ReflectUrl(),
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kBinaryContentType, kNoHeaders,
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kDefaultTestTimeout));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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const std::string data = "abcd";
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ASSERT_EQ(file->Write(data.data(), data.size()),
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static_cast<int64_t>(data.size()));
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// Signal that there will be no more writes.
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// If we don't do this, the request can hang in libcurl.
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file->CloseForWriting();
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auto json = HandleResponse(file);
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ASSERT_TRUE(json.is_object());
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ASSERT_TRUE(file.release()->Close());
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ASSERT_JSON_STRING(json, "method", "PUT");
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ASSERT_JSON_STRING(json, "body", data);
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ASSERT_JSON_STRING(json, "headers.Content-Type", kBinaryContentType);
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// Curl may choose to send chunked or not based on the data. We request
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// chunked encoding, but don't control if it is actually used. If we get
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// chunked transfer, there is no Content-Length header reflected back to us.
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if (!GetJsonString(json, "headers.Content-Length").empty()) {
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ASSERT_JSON_STRING(json, "headers.Content-Length",
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std::to_string(data.size()));
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} else {
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ASSERT_JSON_STRING(json, "headers.Transfer-Encoding", "chunked");
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}
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}
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TEST_F(HttpFileTest, MultipleWrites) {
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FilePtr file(new HttpFile(HttpMethod::kPut, server_.ReflectUrl(),
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kBinaryContentType, kNoHeaders,
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kDefaultTestTimeout));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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const std::string data1 = "abcd";
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const std::string data2 = "efgh";
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const std::string data3 = "ijkl";
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const std::string data4 = "mnop";
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ASSERT_EQ(file->Write(data1.data(), data1.size()),
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static_cast<int64_t>(data1.size()));
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ASSERT_EQ(file->Write(data2.data(), data2.size()),
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static_cast<int64_t>(data2.size()));
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ASSERT_EQ(file->Write(data3.data(), data3.size()),
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static_cast<int64_t>(data3.size()));
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ASSERT_EQ(file->Write(data4.data(), data4.size()),
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static_cast<int64_t>(data4.size()));
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// Signal that there will be no more writes.
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// If we don't do this, the request can hang in libcurl.
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file->CloseForWriting();
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auto json = HandleResponse(file);
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ASSERT_TRUE(json.is_object());
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ASSERT_TRUE(file.release()->Close());
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ASSERT_JSON_STRING(json, "method", "PUT");
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ASSERT_JSON_STRING(json, "body", data1 + data2 + data3 + data4);
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ASSERT_JSON_STRING(json, "headers.Content-Type", kBinaryContentType);
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// Curl may choose to send chunked or not based on the data. We request
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// chunked encoding, but don't control if it is actually used. If we get
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// chunked transfer, there is no Content-Length header reflected back to us.
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if (!GetJsonString(json, "headers.Content-Length").empty()) {
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auto totalSize = data1.size() + data2.size() + data3.size() + data4.size();
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ASSERT_JSON_STRING(json, "headers.Content-Length",
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std::to_string(totalSize));
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} else {
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ASSERT_JSON_STRING(json, "headers.Transfer-Encoding", "chunked");
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}
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}
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TEST_F(HttpFileTest, MultipleChunks) {
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FilePtr file(new HttpFile(HttpMethod::kPut, server_.ReflectUrl(),
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kBinaryContentType, kNoHeaders,
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kDefaultTestTimeout));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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// Each of these is written as an explicit chunk to the server.
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const std::string data1 = "abcd";
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const std::string data2 = "efgh";
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const std::string data3 = "ijkl";
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const std::string data4 = "mnop";
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ASSERT_EQ(file->Write(data1.data(), data1.size()),
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static_cast<int64_t>(data1.size()));
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// Flush the first chunk.
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ASSERT_TRUE(file->Flush());
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ASSERT_EQ(file->Write(data2.data(), data2.size()),
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static_cast<int64_t>(data2.size()));
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// Flush the second chunk.
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ASSERT_TRUE(file->Flush());
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ASSERT_EQ(file->Write(data3.data(), data3.size()),
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static_cast<int64_t>(data3.size()));
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// Flush the third chunk.
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ASSERT_TRUE(file->Flush());
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ASSERT_EQ(file->Write(data4.data(), data4.size()),
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static_cast<int64_t>(data4.size()));
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// Flush the fourth chunk.
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ASSERT_TRUE(file->Flush());
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// Signal that there will be no more writes.
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// If we don't do this, the request can hang in libcurl.
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file->CloseForWriting();
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auto json = HandleResponse(file);
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ASSERT_TRUE(json.is_object());
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ASSERT_TRUE(file.release()->Close());
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ASSERT_JSON_STRING(json, "method", "PUT");
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ASSERT_JSON_STRING(json, "body", data1 + data2 + data3 + data4);
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ASSERT_JSON_STRING(json, "headers.Content-Type", kBinaryContentType);
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ASSERT_JSON_STRING(json, "headers.Transfer-Encoding", "chunked");
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}
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TEST_F(HttpFileTest, Error404) {
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FilePtr file(new HttpFile(HttpMethod::kGet, server_.StatusCodeUrl(404),
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kNoContentType, kNoHeaders, kDefaultTestTimeout));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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// The site returns an empty response.
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uint8_t buffer[1];
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ASSERT_EQ(file->Read(buffer, sizeof(buffer)), 0);
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auto status = file.release()->CloseWithStatus();
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ASSERT_FALSE(status.ok());
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ASSERT_EQ(status.error_code(), error::HTTP_FAILURE);
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}
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TEST_F(HttpFileTest, TimeoutTriggered) {
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FilePtr file(new HttpFile(HttpMethod::kGet, server_.DelayUrl(8),
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kNoContentType, kNoHeaders,
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1 /* timeout in seconds */));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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// Request should timeout; error is reported in Close/CloseWithStatus.
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uint8_t buffer[1];
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ASSERT_EQ(file->Read(buffer, sizeof(buffer)), 0);
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auto status = file.release()->CloseWithStatus();
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ASSERT_FALSE(status.ok());
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ASSERT_EQ(status.error_code(), error::TIME_OUT);
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}
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TEST_F(HttpFileTest, TimeoutNotTriggered) {
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FilePtr file(new HttpFile(HttpMethod::kGet, server_.DelayUrl(1),
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kNoContentType, kNoHeaders,
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5 /* timeout in seconds */));
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ASSERT_TRUE(file);
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ASSERT_TRUE(file->Open());
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auto json = HandleResponse(file);
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ASSERT_TRUE(json.is_object());
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ASSERT_TRUE(file.release()->Close());
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}
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} // namespace shaka
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