| // Copyright (c) 2013 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. |
| |
| #ifndef QUICHE_QUIC_CORE_HTTP_SPDY_UTILS_H_ |
| #define QUICHE_QUIC_CORE_HTTP_SPDY_UTILS_H_ |
| |
| #include <cstddef> |
| #include <cstdint> |
| #include <string> |
| |
| #include "absl/types/optional.h" |
| #include "quiche/quic/core/http/http_constants.h" |
| #include "quiche/quic/core/http/quic_header_list.h" |
| #include "quiche/quic/core/quic_packets.h" |
| #include "quiche/quic/platform/api/quic_export.h" |
| #include "quiche/spdy/core/http2_header_block.h" |
| #include "quiche/spdy/core/spdy_alt_svc_wire_format.h" |
| |
| namespace quic { |
| |
| class QUIC_EXPORT_PRIVATE SpdyUtils { |
| public: |
| SpdyUtils() = delete; |
| |
| // Populate |content length| with the value of the content-length header. |
| // Returns true on success, false if parsing fails or content-length header is |
| // missing. |
| static bool ExtractContentLengthFromHeaders(int64_t* content_length, |
| spdy::Http2HeaderBlock* headers); |
| |
| // Copies a list of headers to a Http2HeaderBlock. |
| static bool CopyAndValidateHeaders(const QuicHeaderList& header_list, |
| int64_t* content_length, |
| spdy::Http2HeaderBlock* headers); |
| |
| // Copies a list of headers to a Http2HeaderBlock. |
| // If |expect_final_byte_offset| is true, requires exactly one header field |
| // with key kFinalOffsetHeaderKey and an integer value. |
| // If |expect_final_byte_offset| is false, no kFinalOffsetHeaderKey may be |
| // present. |
| // Returns true if parsing is successful. Returns false if the presence of |
| // kFinalOffsetHeaderKey does not match the value of |
| // |expect_final_byte_offset|, the kFinalOffsetHeaderKey value cannot be |
| // parsed, any other pseudo-header is present, an empty header key is present, |
| // or a header key contains an uppercase character. |
| static bool CopyAndValidateTrailers(const QuicHeaderList& header_list, |
| bool expect_final_byte_offset, |
| size_t* final_byte_offset, |
| spdy::Http2HeaderBlock* trailers); |
| |
| // Populates the fields of |headers| to make a GET request of |url|, |
| // which must be fully-qualified. |
| static bool PopulateHeaderBlockFromUrl(const std::string url, |
| spdy::Http2HeaderBlock* headers); |
| |
| // Returns the advertised QUIC version from the specified alternative service |
| // advertisement, or ParsedQuicVersion::Unsupported() if no supported version |
| // is advertised. |
| static ParsedQuicVersion ExtractQuicVersionFromAltSvcEntry( |
| const spdy::SpdyAltSvcWireFormat::AlternativeService& |
| alternative_service_entry, |
| const ParsedQuicVersionVector& supported_versions); |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_HTTP_SPDY_UTILS_H_ |