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third_party/crashpad/crashpad/util/net/http_transport_test.cc

Index: third_party/crashpad/crashpad/util/net/http_transport_test.cc
diff --git a/third_party/crashpad/crashpad/util/net/http_transport_test.cc b/third_party/crashpad/crashpad/util/net/http_transport_test.cc
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+// Copyright 2014 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "util/net/http_transport.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <vector>
+
+#include "base/files/file_path.h"
+#include "base/format_macros.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
+#include "build/build_config.h"
+#include "gtest/gtest.h"
+#include "test/multiprocess_exec.h"
+#include "test/paths.h"
+#include "util/file/file_io.h"
+#include "util/stdlib/move.h"
+#include "util/misc/random_string.h"
+#include "util/net/http_body.h"
+#include "util/net/http_headers.h"
+#include "util/net/http_multipart_builder.h"
+
+namespace crashpad {
+namespace test {
+namespace {
+
+class HTTPTransportTestFixture : public MultiprocessExec {
+ public:
+  using RequestValidator =
+      void(*)(HTTPTransportTestFixture*, const std::string&);
+
+  HTTPTransportTestFixture(const HTTPHeaders& headers,
+                           scoped_ptr<HTTPBodyStream> body_stream,
+                           uint16_t http_response_code,
+                           RequestValidator request_validator)
+      : MultiprocessExec(),
+        headers_(headers),
+        body_stream_(crashpad::move(body_stream)),
+        response_code_(http_response_code),
+        request_validator_(request_validator) {
+    base::FilePath server_path = Paths::TestDataRoot().Append(
+        FILE_PATH_LITERAL("util/net/http_transport_test_server.py"));
+#if defined(OS_POSIX)
+    SetChildCommand(server_path.value(), nullptr);
+#elif defined(OS_WIN)
+    // Explicitly invoke a shell and python so that python can be found in the
+    // path, and run the test script.
+    std::vector<std::string> args;
+    args.push_back("/c");
+    args.push_back("python");
+    args.push_back(base::UTF16ToUTF8(server_path.value()));
+    SetChildCommand(getenv("COMSPEC"), &args);
+#endif  // OS_POSIX
+  }
+
+  const HTTPHeaders& headers() { return headers_; }
+
+ private:
+  void MultiprocessParent() override {
+    // Use Logging*File() instead of Checked*File() so that the test can fail
+    // gracefully with a gtest assertion if the child does not execute properly.
+
+    // The child will write the HTTP server port number as a packed unsigned
+    // short to stdout.
+    uint16_t port;
+    ASSERT_TRUE(LoggingReadFile(ReadPipeHandle(), &port, sizeof(port)));
+
+    // Then the parent will tell the web server what response code to send
+    // for the HTTP request.
+    ASSERT_TRUE(LoggingWriteFile(
+        WritePipeHandle(), &response_code_, sizeof(response_code_)));
+
+    // The parent will also tell the web server what response body to send back.
+    // The web server will only send the response body if the response code is
+    // 200.
+    const std::string random_string = RandomString();
+
+    ASSERT_TRUE(LoggingWriteFile(WritePipeHandle(),
+                                 random_string.c_str(),
+                                 random_string.size()));
+
+    // Now execute the HTTP request.
+    scoped_ptr<HTTPTransport> transport(HTTPTransport::Create());
+    transport->SetMethod("POST");
+    transport->SetURL(base::StringPrintf("http://127.0.0.1:%d/upload", port));
+    for (const auto& pair : headers_) {
+      transport->SetHeader(pair.first, pair.second);
+    }
+    transport->SetBodyStream(crashpad::move(body_stream_));
+
+    std::string response_body;
+    bool success = transport->ExecuteSynchronously(&response_body);
+    if (response_code_ == 200) {
+      EXPECT_TRUE(success);
+      std::string expect_response_body = random_string + "\r\n";
+      EXPECT_EQ(expect_response_body, response_body);
+    } else {
+      EXPECT_FALSE(success);
+      EXPECT_TRUE(response_body.empty());
+    }
+
+    // Read until the child's stdout closes.
+    std::string request;
+    char buf[32];
+    FileOperationResult bytes_read;
+    while ((bytes_read = ReadFile(ReadPipeHandle(), buf, sizeof(buf))) != 0) {
+      ASSERT_GE(bytes_read, 0);
+      request.append(buf, bytes_read);
+    }
+
+    if (request_validator_)
+      request_validator_(this, request);
+  }
+
+  HTTPHeaders headers_;
+  scoped_ptr<HTTPBodyStream> body_stream_;
+  uint16_t response_code_;
+  RequestValidator request_validator_;
+};
+
+const char kMultipartFormData[] = "multipart/form-data";
+
+void GetHeaderField(const std::string& request,
+                    const std::string& header,
+                    std::string* value) {
+  size_t index = request.find(header);
+  ASSERT_NE(std::string::npos, index);
+  // Since the header is never the first line of the request, it should always
+  // be preceded by a CRLF.
+  EXPECT_EQ('\n', request[index - 1]);
+  EXPECT_EQ('\r', request[index - 2]);
+
+  index += header.length();
+  EXPECT_EQ(':', request[index++]);
+  // Per RFC 7230 §3.2, there can be one or more spaces or horizontal tabs.
+  // For testing purposes, just assume one space.
+  EXPECT_EQ(' ', request[index++]);
+
+  size_t header_end = request.find('\r', index);
+  ASSERT_NE(std::string::npos, header_end);
+
+  *value = request.substr(index, header_end - index);
+}
+
+void GetMultipartBoundary(const std::string& request,
+                          std::string* multipart_boundary) {
+  std::string content_type;
+  GetHeaderField(request, kContentType, &content_type);
+
+  ASSERT_GE(content_type.length(), strlen(kMultipartFormData));
+  size_t index = strlen(kMultipartFormData);
+  EXPECT_EQ(kMultipartFormData, content_type.substr(0, index));
+
+  EXPECT_EQ(';', content_type[index++]);
+
+  size_t boundary_begin = content_type.find('=', index);
+  ASSERT_NE(std::string::npos, boundary_begin);
+  EXPECT_EQ('=', content_type[boundary_begin++]);
+  if (multipart_boundary) {
+    *multipart_boundary = content_type.substr(boundary_begin);
+  }
+}
+
+const char kBoundaryEq[] = "boundary=";
+
+void ValidFormData(HTTPTransportTestFixture* fixture,
+                   const std::string& request) {
+  std::string actual_boundary;
+  GetMultipartBoundary(request, &actual_boundary);
+
+  const auto& content_type = fixture->headers().find(kContentType);
+  ASSERT_NE(fixture->headers().end(), content_type);
+
+  size_t boundary = content_type->second.find(kBoundaryEq);
+  ASSERT_NE(std::string::npos, boundary);
+  std::string expected_boundary =
+      content_type->second.substr(boundary + strlen(kBoundaryEq));
+  EXPECT_EQ(expected_boundary, actual_boundary);
+
+  size_t body_start = request.find("\r\n\r\n");
+  ASSERT_NE(std::string::npos, body_start);
+  body_start += 4;
+
+  std::string expected = "--" + expected_boundary + "\r\n";
+  expected += "Content-Disposition: form-data; name=\"key1\"\r\n\r\n";
+  expected += "test\r\n";
+  ASSERT_LT(body_start + expected.length(), request.length());
+  EXPECT_EQ(expected, request.substr(body_start, expected.length()));
+
+  body_start += expected.length();
+
+  expected = "--" + expected_boundary + "\r\n";
+  expected += "Content-Disposition: form-data; name=\"key2\"\r\n\r\n";
+  expected += "--abcdefg123\r\n";
+  expected += "--" + expected_boundary + "--\r\n";
+  ASSERT_EQ(body_start + expected.length(), request.length());
+  EXPECT_EQ(expected, request.substr(body_start));
+}
+
+TEST(HTTPTransport, ValidFormData) {
+  HTTPMultipartBuilder builder;
+  builder.SetFormData("key1", "test");
+  builder.SetFormData("key2", "--abcdefg123");
+
+  HTTPHeaders headers;
+  EXPECT_TRUE(headers.insert(builder.GetContentType()).second);
+
+  HTTPTransportTestFixture test(headers, builder.GetBodyStream(), 200,
+      &ValidFormData);
+  test.Run();
+}
+
+const char kTextPlain[] = "text/plain";
+
+void ErrorResponse(HTTPTransportTestFixture* fixture,
+                   const std::string& request) {
+  std::string content_type;
+  GetHeaderField(request, kContentType, &content_type);
+  EXPECT_EQ(kTextPlain, content_type);
+}
+
+TEST(HTTPTransport, ErrorResponse) {
+  HTTPMultipartBuilder builder;
+  HTTPHeaders headers;
+  headers[kContentType] = kTextPlain;
+  HTTPTransportTestFixture test(headers, builder.GetBodyStream(),
+      404, &ErrorResponse);
+  test.Run();
+}
+
+const char kTextBody[] = "hello world";
+
+void UnchunkedPlainText(HTTPTransportTestFixture* fixture,
+                        const std::string& request) {
+  std::string header_value;
+  GetHeaderField(request, kContentType, &header_value);
+  EXPECT_EQ(kTextPlain, header_value);
+
+  GetHeaderField(request, kContentLength, &header_value);
+  const auto& content_length = fixture->headers().find(kContentLength);
+  ASSERT_NE(fixture->headers().end(), content_length);
+  EXPECT_EQ(content_length->second, header_value);
+
+  size_t body_start = request.rfind("\r\n");
+  ASSERT_NE(std::string::npos, body_start);
+
+  EXPECT_EQ(kTextBody, request.substr(body_start + 2));
+}
+
+TEST(HTTPTransport, UnchunkedPlainText) {
+  scoped_ptr<HTTPBodyStream> body_stream(new StringHTTPBodyStream(kTextBody));
+
+  HTTPHeaders headers;
+  headers[kContentType] = kTextPlain;
+  headers[kContentLength] = base::StringPrintf("%" PRIuS, strlen(kTextBody));
+
+  HTTPTransportTestFixture test(headers, crashpad::move(body_stream), 200,
+      &UnchunkedPlainText);
+  test.Run();
+}
+
+void RunUpload33k(bool has_content_length) {
+  // On OS X, NSMutableURLRequest winds up calling into a CFReadStream’s Read()
+  // callback with a 32kB buffer. Make sure that it’s able to get everything
+  // when enough is available to fill this buffer, requiring more than one
+  // Read().
+
+  std::string request_string(33 * 1024, 'a');
+  scoped_ptr<HTTPBodyStream> body_stream(
+      new StringHTTPBodyStream(request_string));
+
+  HTTPHeaders headers;
+  headers[kContentType] = "application/octet-stream";
+  if (has_content_length) {
+    headers[kContentLength] =
+        base::StringPrintf("%" PRIuS, request_string.size());
+  }
+  HTTPTransportTestFixture test(headers, crashpad::move(body_stream), 200,
+      [](HTTPTransportTestFixture* fixture, const std::string& request) {
+        size_t body_start = request.rfind("\r\n");
+        EXPECT_EQ(33 * 1024u + 2, request.size() - body_start);
+      });
+  test.Run();
+}
+
+TEST(HTTPTransport, Upload33k) {
+  RunUpload33k(true);
+}
+
+TEST(HTTPTransport, Upload33k_LengthUnknown) {
+  // The same as Upload33k, but without declaring Content-Length ahead of time.
+  RunUpload33k(false);
+}
+
+}  // namespace
+}  // namespace test
+}  // namespace crashpad