C++ CHttpRanges::GetFirstPosition方法代码示例

  void CheckRangesTestFileResponse(const CCurlFile& curl, const std::string& result, const CHttpRanges& ranges)
  {
    // get the HTTP header details
    const CHttpHeader& httpHeader = curl.GetHttpHeader();

    // check the protocol line for the expected HTTP status
    std::string httpStatusString = StringUtils::Format(" %d ", MHD_HTTP_PARTIAL_CONTENT);
    std::string protocolLine = httpHeader.GetProtoLine();
    ASSERT_TRUE(protocolLine.find(httpStatusString) != std::string::npos);

    // Accept-Ranges must be "bytes"
    EXPECT_STREQ("bytes", httpHeader.GetValue(MHD_HTTP_HEADER_ACCEPT_RANGES).c_str());

    // check Last-Modified
    CDateTime lastModified;
    ASSERT_TRUE(GetLastModifiedOfTestFile(TEST_FILES_RANGES, lastModified));
    ASSERT_STREQ(lastModified.GetAsRFC1123DateTime().c_str(), httpHeader.GetValue(MHD_HTTP_HEADER_LAST_MODIFIED).c_str());

    // Cache-Control must contain "mag-age=0" and "no-cache"
    std::string cacheControl = httpHeader.GetValue(MHD_HTTP_HEADER_CACHE_CONTROL);
    EXPECT_TRUE(cacheControl.find("max-age=31536000") != std::string::npos);
    EXPECT_TRUE(cacheControl.find("public") != std::string::npos);

    // If there's no range Content-Length must be "20"
    if (ranges.IsEmpty())
    {
      EXPECT_STREQ("20", httpHeader.GetValue(MHD_HTTP_HEADER_CONTENT_LENGTH).c_str());
      EXPECT_STREQ(TEST_FILES_DATA_RANGES, result.c_str());
      return;
    }

    // check Content-Range
    uint64_t firstPosition, lastPosition;
    ASSERT_TRUE(ranges.GetFirstPosition(firstPosition));
    ASSERT_TRUE(ranges.GetLastPosition(lastPosition));
    EXPECT_STREQ(HttpRangeUtils::GenerateContentRangeHeaderValue(firstPosition, lastPosition, 20).c_str(), httpHeader.GetValue(MHD_HTTP_HEADER_CONTENT_RANGE).c_str());

    std::string expectedContent = TEST_FILES_DATA_RANGES;
    const std::string expectedContentType = "text/plain";
    if (ranges.Size() == 1)
    {
      // Content-Type must be "text/html"
      EXPECT_STREQ(expectedContentType.c_str(), httpHeader.GetMimeType().c_str());

      // check the content
      CHttpRange firstRange;
      ASSERT_TRUE(ranges.GetFirst(firstRange));
      expectedContent = expectedContent.substr(firstRange.GetFirstPosition(), firstRange.GetLength());
      EXPECT_STREQ(expectedContent.c_str(), result.c_str());

      // and Content-Length
      EXPECT_STREQ(StringUtils::Format("%u", static_cast<unsigned int>(expectedContent.size())).c_str(), httpHeader.GetValue(MHD_HTTP_HEADER_CONTENT_LENGTH).c_str());

      return;
    }

    // Content-Type contains the multipart boundary
    const std::string expectedMimeType = "multipart/byteranges";
    std::string mimeType = httpHeader.GetMimeType();
    ASSERT_STREQ(expectedMimeType.c_str(), mimeType.c_str());

    std::string contentType = httpHeader.GetValue(MHD_HTTP_HEADER_CONTENT_TYPE);
    std::string contentTypeStart = expectedMimeType + "; boundary=";
    // it must start with "multipart/byteranges; boundary=" followed by the boundary
    ASSERT_EQ(0, contentType.find(contentTypeStart));
    ASSERT_GT(contentType.size(), contentTypeStart.size());
    // extract the boundary
    std::string multipartBoundary = contentType.substr(contentTypeStart.size());
    ASSERT_FALSE(multipartBoundary.empty());
    multipartBoundary = "--" + multipartBoundary;

    ASSERT_EQ(0, result.find(multipartBoundary));
    std::vector<std::string> rangeParts = StringUtils::Split(result, multipartBoundary);
    // the first part is not really a part and is therefore empty (the place before the first boundary)
    ASSERT_TRUE(rangeParts.front().empty());
    rangeParts.erase(rangeParts.begin());
    // the last part is the end of the end multipart boundary
    ASSERT_STREQ("--", rangeParts.back().c_str());
    rangeParts.erase(rangeParts.begin() + rangeParts.size() - 1);
    ASSERT_EQ(ranges.Size(), rangeParts.size());

    for (size_t i = 0; i < rangeParts.size(); ++i)
    {
      std::string data = rangeParts.at(i);
      StringUtils::Trim(data, " \r\n");

      // find the separator between header and data
      size_t pos = data.find("\r\n\r\n");
      ASSERT_NE(std::string::npos, pos);

      std::string header = data.substr(0, pos + 4);
      data = data.substr(pos + 4);

      // get the expected range
      CHttpRange range;
      ASSERT_TRUE(ranges.Get(i, range));

      // parse the header of the range part
      CHttpHeader rangeHeader;
      rangeHeader.Parse(header);
//.........这里部分代码省略.........