libhttppp ..

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qpack.h
1/*******************************************************************************
2 * Copyright (c) 2014, Jan Koester jan.koester@gmx.net
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * Neither the name of the <organization> nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *******************************************************************************/
27
28#pragma once
29
30#include <cstddef>
31#include <cstdint>
32#include <string>
33#include <vector>
34
35 namespace libhttppp::qpack {
36
37 struct HeaderField {
38 std::string name;
39 std::string value;
40 bool incremental_index = false;
41};
42
43 class Encoder {
44 public:
45 static std::vector<uint8_t> encodeResponseHeaders(uint16_t status_code,
46 const std::string &content_type,
47 size_t content_length,
48 const std::vector<HeaderField> &extra = {});
49
50 private:
51 static void encodeInt(std::vector<uint8_t> &out, uint8_t prefix_byte,
52 uint8_t prefix_bits, uint64_t value);
53 static void encodeString(std::vector<uint8_t> &out, const std::string &s);
54 static void encodeIndexedStatic(std::vector<uint8_t> &out, uint64_t index);
55 static void encodeLiteralStaticNameRef(std::vector<uint8_t> &out,
56 uint64_t name_index,
57 const std::string &value);
58 static void encodeLiteralName(std::vector<uint8_t> &out,
59 const std::string &name,
60 const std::string &value);
61};
62
63 class Decoder {
64 public:
65 static std::vector<HeaderField> decode(const uint8_t *data, size_t len);
66 private:
67 struct StaticEntry { const char *name; const char *value; };
68 static const StaticEntry STATIC_TABLE[];
69 static const size_t STATIC_TABLE_SIZE;
70};
71
72} // namespace libhttppp::qpack
libhttppp::qpack::Decoder
Definition qpack.h:63
libhttppp::qpack::Encoder
Definition qpack.h:43
libhttppp::qpack::HeaderField
Definition qpack.h:37