net/spdy/hpack/hpack_constants.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/spdy/hpack/hpack_constants.h"
   6
   7 #include <vector>
   8
   9 #include "base/logging.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/singleton.h"
  12 #include "net/spdy/hpack/hpack_huffman_table.h"
  13 #include "net/spdy/hpack/hpack_static_table.h"
  14
  15 namespace net {
  16
  17 namespace {
  18
  19 // SharedHpackHuffmanTable is a Singleton wrapping a HpackHuffmanTable
  20 // instance initialized with |kHpackHuffmanCode|.
  21 struct SharedHpackHuffmanTable {
  22  public:
  23   SharedHpackHuffmanTable() {
  24     std::vector<HpackHuffmanSymbol> code = HpackHuffmanCode();
  25     scoped_ptr<HpackHuffmanTable> mutable_table(new HpackHuffmanTable());
  26     CHECK(mutable_table->Initialize(&code[0], code.size()));
  27     CHECK(mutable_table->IsInitialized());
  28     table.reset(mutable_table.release());
  29   }
  30
  31   static SharedHpackHuffmanTable* GetInstance() {
  32     return Singleton<SharedHpackHuffmanTable>::get();
  33   }
  34
  35   scoped_ptr<const HpackHuffmanTable> table;
  36 };
  37
  38 // SharedHpackStaticTable is a Singleton wrapping a HpackStaticTable
  39 // instance initialized with |kHpackStaticTable|.
  40 struct SharedHpackStaticTable {
  41  public:
  42   SharedHpackStaticTable() {
  43     std::vector<HpackStaticEntry> static_table = HpackStaticTableVector();
  44     scoped_ptr<HpackStaticTable> mutable_table(new HpackStaticTable());
  45     mutable_table->Initialize(&static_table[0], static_table.size());
  46     CHECK(mutable_table->IsInitialized());
  47     table.reset(mutable_table.release());
  48   }
  49
  50   static SharedHpackStaticTable* GetInstance() {
  51     return Singleton<SharedHpackStaticTable>::get();
  52   }
  53
  54   scoped_ptr<const HpackStaticTable> table;
  55 };
  56
  57 }  // namespace
  58
  59 // Produced by applying the python program [1] with tables
  60 // provided by [2] (inserted into the source of the python program)
  61 // and copy-paste them into this file.
  62 //
  63 // [1] net/tools/build_hpack_constants.py
  64 // [2] http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-08
  65
  66 // HpackHuffmanSymbol entries are initialized as {code, length, id}.
  67 // Codes are specified in the |length| most-significant bits of |code|.
  68 std::vector<HpackHuffmanSymbol> HpackHuffmanCode() {
  69   static const HpackHuffmanSymbol kHpackHuffmanCode[] = {
  70       {0xffc00000ul, 13, 0},    //     11111111|11000
  71       {0xffffb000ul, 23, 1},    //     11111111|11111111|1011000
  72       {0xfffffe20ul, 28, 2},    //     11111111|11111111|11111110|0010
  73       {0xfffffe30ul, 28, 3},    //     11111111|11111111|11111110|0011
  74       {0xfffffe40ul, 28, 4},    //     11111111|11111111|11111110|0100
  75       {0xfffffe50ul, 28, 5},    //     11111111|11111111|11111110|0101
  76       {0xfffffe60ul, 28, 6},    //     11111111|11111111|11111110|0110
  77       {0xfffffe70ul, 28, 7},    //     11111111|11111111|11111110|0111
  78       {0xfffffe80ul, 28, 8},    //     11111111|11111111|11111110|1000
  79       {0xffffea00ul, 24, 9},    //     11111111|11111111|11101010
  80       {0xfffffff0ul, 30, 10},   //     11111111|11111111|11111111|111100
  81       {0xfffffe90ul, 28, 11},   //     11111111|11111111|11111110|1001
  82       {0xfffffea0ul, 28, 12},   //     11111111|11111111|11111110|1010
  83       {0xfffffff4ul, 30, 13},   //     11111111|11111111|11111111|111101
  84       {0xfffffeb0ul, 28, 14},   //     11111111|11111111|11111110|1011
  85       {0xfffffec0ul, 28, 15},   //     11111111|11111111|11111110|1100
  86       {0xfffffed0ul, 28, 16},   //     11111111|11111111|11111110|1101
  87       {0xfffffee0ul, 28, 17},   //     11111111|11111111|11111110|1110
  88       {0xfffffef0ul, 28, 18},   //     11111111|11111111|11111110|1111
  89       {0xffffff00ul, 28, 19},   //     11111111|11111111|11111111|0000
  90       {0xffffff10ul, 28, 20},   //     11111111|11111111|11111111|0001
  91       {0xffffff20ul, 28, 21},   //     11111111|11111111|11111111|0010
  92       {0xfffffff8ul, 30, 22},   //     11111111|11111111|11111111|111110
  93       {0xffffff30ul, 28, 23},   //     11111111|11111111|11111111|0011
  94       {0xffffff40ul, 28, 24},   //     11111111|11111111|11111111|0100
  95       {0xffffff50ul, 28, 25},   //     11111111|11111111|11111111|0101
  96       {0xffffff60ul, 28, 26},   //     11111111|11111111|11111111|0110
  97       {0xffffff70ul, 28, 27},   //     11111111|11111111|11111111|0111
  98       {0xffffff80ul, 28, 28},   //     11111111|11111111|11111111|1000
  99       {0xffffff90ul, 28, 29},   //     11111111|11111111|11111111|1001
 100       {0xffffffa0ul, 28, 30},   //     11111111|11111111|11111111|1010
 101       {0xffffffb0ul, 28, 31},   //     11111111|11111111|11111111|1011
 102       {0x50000000ul, 6, 32},    // ' ' 010100
 103       {0xfe000000ul, 10, 33},   // '!' 11111110|00
 104       {0xfe400000ul, 10, 34},   // '"' 11111110|01
 105       {0xffa00000ul, 12, 35},   // '#' 11111111|1010
 106       {0xffc80000ul, 13, 36},   // '$' 11111111|11001
 107       {0x54000000ul, 6, 37},    // '%' 010101
 108       {0xf8000000ul, 8, 38},    // '&' 11111000
 109       {0xff400000ul, 11, 39},   // ''' 11111111|010
 110       {0xfe800000ul, 10, 40},   // '(' 11111110|10
 111       {0xfec00000ul, 10, 41},   // ')' 11111110|11
 112       {0xf9000000ul, 8, 42},    // '*' 11111001
 113       {0xff600000ul, 11, 43},   // '+' 11111111|011
 114       {0xfa000000ul, 8, 44},    // ',' 11111010
 115       {0x58000000ul, 6, 45},    // '-' 010110
 116       {0x5c000000ul, 6, 46},    // '.' 010111
 117       {0x60000000ul, 6, 47},    // '/' 011000
 118       {0x00000000ul, 5, 48},    // '0' 00000
 119       {0x08000000ul, 5, 49},    // '1' 00001
 120       {0x10000000ul, 5, 50},    // '2' 00010
 121       {0x64000000ul, 6, 51},    // '3' 011001
 122       {0x68000000ul, 6, 52},    // '4' 011010
 123       {0x6c000000ul, 6, 53},    // '5' 011011
 124       {0x70000000ul, 6, 54},    // '6' 011100
 125       {0x74000000ul, 6, 55},    // '7' 011101
 126       {0x78000000ul, 6, 56},    // '8' 011110
 127       {0x7c000000ul, 6, 57},    // '9' 011111
 128       {0xb8000000ul, 7, 58},    // ':' 1011100
 129       {0xfb000000ul, 8, 59},    // ';' 11111011
 130       {0xfff80000ul, 15, 60},   // '<' 11111111|1111100
 131       {0x80000000ul, 6, 61},    // '=' 100000
 132       {0xffb00000ul, 12, 62},   // '>' 11111111|1011
 133       {0xff000000ul, 10, 63},   // '?' 11111111|00
 134       {0xffd00000ul, 13, 64},   // '@' 11111111|11010
 135       {0x84000000ul, 6, 65},    // 'A' 100001
 136       {0xba000000ul, 7, 66},    // 'B' 1011101
 137       {0xbc000000ul, 7, 67},    // 'C' 1011110
 138       {0xbe000000ul, 7, 68},    // 'D' 1011111
 139       {0xc0000000ul, 7, 69},    // 'E' 1100000
 140       {0xc2000000ul, 7, 70},    // 'F' 1100001
 141       {0xc4000000ul, 7, 71},    // 'G' 1100010
 142       {0xc6000000ul, 7, 72},    // 'H' 1100011
 143       {0xc8000000ul, 7, 73},    // 'I' 1100100
 144       {0xca000000ul, 7, 74},    // 'J' 1100101
 145       {0xcc000000ul, 7, 75},    // 'K' 1100110
 146       {0xce000000ul, 7, 76},    // 'L' 1100111
 147       {0xd0000000ul, 7, 77},    // 'M' 1101000
 148       {0xd2000000ul, 7, 78},    // 'N' 1101001
 149       {0xd4000000ul, 7, 79},    // 'O' 1101010
 150       {0xd6000000ul, 7, 80},    // 'P' 1101011
 151       {0xd8000000ul, 7, 81},    // 'Q' 1101100
 152       {0xda000000ul, 7, 82},    // 'R' 1101101
 153       {0xdc000000ul, 7, 83},    // 'S' 1101110
 154       {0xde000000ul, 7, 84},    // 'T' 1101111
 155       {0xe0000000ul, 7, 85},    // 'U' 1110000
 156       {0xe2000000ul, 7, 86},    // 'V' 1110001
 157       {0xe4000000ul, 7, 87},    // 'W' 1110010
 158       {0xfc000000ul, 8, 88},    // 'X' 11111100
 159       {0xe6000000ul, 7, 89},    // 'Y' 1110011
 160       {0xfd000000ul, 8, 90},    // 'Z' 11111101
 161       {0xffd80000ul, 13, 91},   // '[' 11111111|11011
 162       {0xfffe0000ul, 19, 92},   // '\' 11111111|11111110|000
 163       {0xffe00000ul, 13, 93},   // ']' 11111111|11100
 164       {0xfff00000ul, 14, 94},   // '^' 11111111|111100
 165       {0x88000000ul, 6, 95},    // '_' 100010
 166       {0xfffa0000ul, 15, 96},   // '`' 11111111|1111101
 167       {0x18000000ul, 5, 97},    // 'a' 00011
 168       {0x8c000000ul, 6, 98},    // 'b' 100011
 169       {0x20000000ul, 5, 99},    // 'c' 00100
 170       {0x90000000ul, 6, 100},   // 'd' 100100
 171       {0x28000000ul, 5, 101},   // 'e' 00101
 172       {0x94000000ul, 6, 102},   // 'f' 100101
 173       {0x98000000ul, 6, 103},   // 'g' 100110
 174       {0x9c000000ul, 6, 104},   // 'h' 100111
 175       {0x30000000ul, 5, 105},   // 'i' 00110
 176       {0xe8000000ul, 7, 106},   // 'j' 1110100
 177       {0xea000000ul, 7, 107},   // 'k' 1110101
 178       {0xa0000000ul, 6, 108},   // 'l' 101000
 179       {0xa4000000ul, 6, 109},   // 'm' 101001
 180       {0xa8000000ul, 6, 110},   // 'n' 101010
 181       {0x38000000ul, 5, 111},   // 'o' 00111
 182       {0xac000000ul, 6, 112},   // 'p' 101011
 183       {0xec000000ul, 7, 113},   // 'q' 1110110
 184       {0xb0000000ul, 6, 114},   // 'r' 101100
 185       {0x40000000ul, 5, 115},   // 's' 01000
 186       {0x48000000ul, 5, 116},   // 't' 01001
 187       {0xb4000000ul, 6, 117},   // 'u' 101101
 188       {0xee000000ul, 7, 118},   // 'v' 1110111
 189       {0xf0000000ul, 7, 119},   // 'w' 1111000
 190       {0xf2000000ul, 7, 120},   // 'x' 1111001
 191       {0xf4000000ul, 7, 121},   // 'y' 1111010
 192       {0xf6000000ul, 7, 122},   // 'z' 1111011
 193       {0xfffc0000ul, 15, 123},  // '{' 11111111|1111110
 194       {0xff800000ul, 11, 124},  // '|' 11111111|100
 195       {0xfff40000ul, 14, 125},  // '}' 11111111|111101
 196       {0xffe80000ul, 13, 126},  // '~' 11111111|11101
 197       {0xffffffc0ul, 28, 127},  //     11111111|11111111|11111111|1100
 198       {0xfffe6000ul, 20, 128},  //     11111111|11111110|0110
 199       {0xffff4800ul, 22, 129},  //     11111111|11111111|010010
 200       {0xfffe7000ul, 20, 130},  //     11111111|11111110|0111
 201       {0xfffe8000ul, 20, 131},  //     11111111|11111110|1000
 202       {0xffff4c00ul, 22, 132},  //     11111111|11111111|010011
 203       {0xffff5000ul, 22, 133},  //     11111111|11111111|010100
 204       {0xffff5400ul, 22, 134},  //     11111111|11111111|010101
 205       {0xffffb200ul, 23, 135},  //     11111111|11111111|1011001
 206       {0xffff5800ul, 22, 136},  //     11111111|11111111|010110
 207       {0xffffb400ul, 23, 137},  //     11111111|11111111|1011010
 208       {0xffffb600ul, 23, 138},  //     11111111|11111111|1011011
 209       {0xffffb800ul, 23, 139},  //     11111111|11111111|1011100
 210       {0xffffba00ul, 23, 140},  //     11111111|11111111|1011101
 211       {0xffffbc00ul, 23, 141},  //     11111111|11111111|1011110
 212       {0xffffeb00ul, 24, 142},  //     11111111|11111111|11101011
 213       {0xffffbe00ul, 23, 143},  //     11111111|11111111|1011111
 214       {0xffffec00ul, 24, 144},  //     11111111|11111111|11101100
 215       {0xffffed00ul, 24, 145},  //     11111111|11111111|11101101
 216       {0xffff5c00ul, 22, 146},  //     11111111|11111111|010111
 217       {0xffffc000ul, 23, 147},  //     11111111|11111111|1100000
 218       {0xffffee00ul, 24, 148},  //     11111111|11111111|11101110
 219       {0xffffc200ul, 23, 149},  //     11111111|11111111|1100001
 220       {0xffffc400ul, 23, 150},  //     11111111|11111111|1100010
 221       {0xffffc600ul, 23, 151},  //     11111111|11111111|1100011
 222       {0xffffc800ul, 23, 152},  //     11111111|11111111|1100100
 223       {0xfffee000ul, 21, 153},  //     11111111|11111110|11100
 224       {0xffff6000ul, 22, 154},  //     11111111|11111111|011000
 225       {0xffffca00ul, 23, 155},  //     11111111|11111111|1100101
 226       {0xffff6400ul, 22, 156},  //     11111111|11111111|011001
 227       {0xffffcc00ul, 23, 157},  //     11111111|11111111|1100110
 228       {0xffffce00ul, 23, 158},  //     11111111|11111111|1100111
 229       {0xffffef00ul, 24, 159},  //     11111111|11111111|11101111
 230       {0xffff6800ul, 22, 160},  //     11111111|11111111|011010
 231       {0xfffee800ul, 21, 161},  //     11111111|11111110|11101
 232       {0xfffe9000ul, 20, 162},  //     11111111|11111110|1001
 233       {0xffff6c00ul, 22, 163},  //     11111111|11111111|011011
 234       {0xffff7000ul, 22, 164},  //     11111111|11111111|011100
 235       {0xffffd000ul, 23, 165},  //     11111111|11111111|1101000
 236       {0xffffd200ul, 23, 166},  //     11111111|11111111|1101001
 237       {0xfffef000ul, 21, 167},  //     11111111|11111110|11110
 238       {0xffffd400ul, 23, 168},  //     11111111|11111111|1101010
 239       {0xffff7400ul, 22, 169},  //     11111111|11111111|011101
 240       {0xffff7800ul, 22, 170},  //     11111111|11111111|011110
 241       {0xfffff000ul, 24, 171},  //     11111111|11111111|11110000
 242       {0xfffef800ul, 21, 172},  //     11111111|11111110|11111
 243       {0xffff7c00ul, 22, 173},  //     11111111|11111111|011111
 244       {0xffffd600ul, 23, 174},  //     11111111|11111111|1101011
 245       {0xffffd800ul, 23, 175},  //     11111111|11111111|1101100
 246       {0xffff0000ul, 21, 176},  //     11111111|11111111|00000
 247       {0xffff0800ul, 21, 177},  //     11111111|11111111|00001
 248       {0xffff8000ul, 22, 178},  //     11111111|11111111|100000
 249       {0xffff1000ul, 21, 179},  //     11111111|11111111|00010
 250       {0xffffda00ul, 23, 180},  //     11111111|11111111|1101101
 251       {0xffff8400ul, 22, 181},  //     11111111|11111111|100001
 252       {0xffffdc00ul, 23, 182},  //     11111111|11111111|1101110
 253       {0xffffde00ul, 23, 183},  //     11111111|11111111|1101111
 254       {0xfffea000ul, 20, 184},  //     11111111|11111110|1010
 255       {0xffff8800ul, 22, 185},  //     11111111|11111111|100010
 256       {0xffff8c00ul, 22, 186},  //     11111111|11111111|100011
 257       {0xffff9000ul, 22, 187},  //     11111111|11111111|100100
 258       {0xffffe000ul, 23, 188},  //     11111111|11111111|1110000
 259       {0xffff9400ul, 22, 189},  //     11111111|11111111|100101
 260       {0xffff9800ul, 22, 190},  //     11111111|11111111|100110
 261       {0xffffe200ul, 23, 191},  //     11111111|11111111|1110001
 262       {0xfffff800ul, 26, 192},  //     11111111|11111111|11111000|00
 263       {0xfffff840ul, 26, 193},  //     11111111|11111111|11111000|01
 264       {0xfffeb000ul, 20, 194},  //     11111111|11111110|1011
 265       {0xfffe2000ul, 19, 195},  //     11111111|11111110|001
 266       {0xffff9c00ul, 22, 196},  //     11111111|11111111|100111
 267       {0xffffe400ul, 23, 197},  //     11111111|11111111|1110010
 268       {0xffffa000ul, 22, 198},  //     11111111|11111111|101000
 269       {0xfffff600ul, 25, 199},  //     11111111|11111111|11110110|0
 270       {0xfffff880ul, 26, 200},  //     11111111|11111111|11111000|10
 271       {0xfffff8c0ul, 26, 201},  //     11111111|11111111|11111000|11
 272       {0xfffff900ul, 26, 202},  //     11111111|11111111|11111001|00
 273       {0xfffffbc0ul, 27, 203},  //     11111111|11111111|11111011|110
 274       {0xfffffbe0ul, 27, 204},  //     11111111|11111111|11111011|111
 275       {0xfffff940ul, 26, 205},  //     11111111|11111111|11111001|01
 276       {0xfffff100ul, 24, 206},  //     11111111|11111111|11110001
 277       {0xfffff680ul, 25, 207},  //     11111111|11111111|11110110|1
 278       {0xfffe4000ul, 19, 208},  //     11111111|11111110|010
 279       {0xffff1800ul, 21, 209},  //     11111111|11111111|00011
 280       {0xfffff980ul, 26, 210},  //     11111111|11111111|11111001|10
 281       {0xfffffc00ul, 27, 211},  //     11111111|11111111|11111100|000
 282       {0xfffffc20ul, 27, 212},  //     11111111|11111111|11111100|001
 283       {0xfffff9c0ul, 26, 213},  //     11111111|11111111|11111001|11
 284       {0xfffffc40ul, 27, 214},  //     11111111|11111111|11111100|010
 285       {0xfffff200ul, 24, 215},  //     11111111|11111111|11110010
 286       {0xffff2000ul, 21, 216},  //     11111111|11111111|00100
 287       {0xffff2800ul, 21, 217},  //     11111111|11111111|00101
 288       {0xfffffa00ul, 26, 218},  //     11111111|11111111|11111010|00
 289       {0xfffffa40ul, 26, 219},  //     11111111|11111111|11111010|01
 290       {0xffffffd0ul, 28, 220},  //     11111111|11111111|11111111|1101
 291       {0xfffffc60ul, 27, 221},  //     11111111|11111111|11111100|011
 292       {0xfffffc80ul, 27, 222},  //     11111111|11111111|11111100|100
 293       {0xfffffca0ul, 27, 223},  //     11111111|11111111|11111100|101
 294       {0xfffec000ul, 20, 224},  //     11111111|11111110|1100
 295       {0xfffff300ul, 24, 225},  //     11111111|11111111|11110011
 296       {0xfffed000ul, 20, 226},  //     11111111|11111110|1101
 297       {0xffff3000ul, 21, 227},  //     11111111|11111111|00110
 298       {0xffffa400ul, 22, 228},  //     11111111|11111111|101001
 299       {0xffff3800ul, 21, 229},  //     11111111|11111111|00111
 300       {0xffff4000ul, 21, 230},  //     11111111|11111111|01000
 301       {0xffffe600ul, 23, 231},  //     11111111|11111111|1110011
 302       {0xffffa800ul, 22, 232},  //     11111111|11111111|101010
 303       {0xffffac00ul, 22, 233},  //     11111111|11111111|101011
 304       {0xfffff700ul, 25, 234},  //     11111111|11111111|11110111|0
 305       {0xfffff780ul, 25, 235},  //     11111111|11111111|11110111|1
 306       {0xfffff400ul, 24, 236},  //     11111111|11111111|11110100
 307       {0xfffff500ul, 24, 237},  //     11111111|11111111|11110101
 308       {0xfffffa80ul, 26, 238},  //     11111111|11111111|11111010|10
 309       {0xffffe800ul, 23, 239},  //     11111111|11111111|1110100
 310       {0xfffffac0ul, 26, 240},  //     11111111|11111111|11111010|11
 311       {0xfffffcc0ul, 27, 241},  //     11111111|11111111|11111100|110
 312       {0xfffffb00ul, 26, 242},  //     11111111|11111111|11111011|00
 313       {0xfffffb40ul, 26, 243},  //     11111111|11111111|11111011|01
 314       {0xfffffce0ul, 27, 244},  //     11111111|11111111|11111100|111
 315       {0xfffffd00ul, 27, 245},  //     11111111|11111111|11111101|000
 316       {0xfffffd20ul, 27, 246},  //     11111111|11111111|11111101|001
 317       {0xfffffd40ul, 27, 247},  //     11111111|11111111|11111101|010
 318       {0xfffffd60ul, 27, 248},  //     11111111|11111111|11111101|011
 319       {0xffffffe0ul, 28, 249},  //     11111111|11111111|11111111|1110
 320       {0xfffffd80ul, 27, 250},  //     11111111|11111111|11111101|100
 321       {0xfffffda0ul, 27, 251},  //     11111111|11111111|11111101|101
 322       {0xfffffdc0ul, 27, 252},  //     11111111|11111111|11111101|110
 323       {0xfffffde0ul, 27, 253},  //     11111111|11111111|11111101|111
 324       {0xfffffe00ul, 27, 254},  //     11111111|11111111|11111110|000
 325       {0xfffffb80ul, 26, 255},  //     11111111|11111111|11111011|10
 326       {0xfffffffcul, 30, 256},  // EOS 11111111|11111111|11111111|111111
 327   };
 328   return std::vector<HpackHuffmanSymbol>(
 329       kHpackHuffmanCode, kHpackHuffmanCode + arraysize(kHpackHuffmanCode));
 330 }
 331
 332 // The "constructor" for a HpackStaticEntry that computes the lengths at
 333 // compile time.
 334 #define STATIC_ENTRY(name, value) \
 335   { name, arraysize(name) - 1, value, arraysize(value) - 1 }
 336
 337 std::vector<HpackStaticEntry> HpackStaticTableVector() {
 338   static const HpackStaticEntry kHpackStaticTable[] = {
 339       STATIC_ENTRY(":authority", ""),                    // 1
 340       STATIC_ENTRY(":method", "GET"),                    // 2
 341       STATIC_ENTRY(":method", "POST"),                   // 3
 342       STATIC_ENTRY(":path", "/"),                        // 4
 343       STATIC_ENTRY(":path", "/index.html"),              // 5
 344       STATIC_ENTRY(":scheme", "http"),                   // 6
 345       STATIC_ENTRY(":scheme", "https"),                  // 7
 346       STATIC_ENTRY(":status", "200"),                    // 8
 347       STATIC_ENTRY(":status", "204"),                    // 9
 348       STATIC_ENTRY(":status", "206"),                    // 10
 349       STATIC_ENTRY(":status", "304"),                    // 11
 350       STATIC_ENTRY(":status", "400"),                    // 12
 351       STATIC_ENTRY(":status", "404"),                    // 13
 352       STATIC_ENTRY(":status", "500"),                    // 14
 353       STATIC_ENTRY("accept-charset", ""),                // 15
 354       STATIC_ENTRY("accept-encoding", "gzip, deflate"),  // 16
 355       STATIC_ENTRY("accept-language", ""),               // 17
 356       STATIC_ENTRY("accept-ranges", ""),                 // 18
 357       STATIC_ENTRY("accept", ""),                        // 19
 358       STATIC_ENTRY("access-control-allow-origin", ""),   // 20
 359       STATIC_ENTRY("age", ""),                           // 21
 360       STATIC_ENTRY("allow", ""),                         // 22
 361       STATIC_ENTRY("authorization", ""),                 // 23
 362       STATIC_ENTRY("cache-control", ""),                 // 24
 363       STATIC_ENTRY("content-disposition", ""),           // 25
 364       STATIC_ENTRY("content-encoding", ""),              // 26
 365       STATIC_ENTRY("content-language", ""),              // 27
 366       STATIC_ENTRY("content-length", ""),                // 28
 367       STATIC_ENTRY("content-location", ""),              // 29
 368       STATIC_ENTRY("content-range", ""),                 // 30
 369       STATIC_ENTRY("content-type", ""),                  // 31
 370       STATIC_ENTRY("cookie", ""),                        // 32
 371       STATIC_ENTRY("date", ""),                          // 33
 372       STATIC_ENTRY("etag", ""),                          // 34
 373       STATIC_ENTRY("expect", ""),                        // 35
 374       STATIC_ENTRY("expires", ""),                       // 36
 375       STATIC_ENTRY("from", ""),                          // 37
 376       STATIC_ENTRY("host", ""),                          // 38
 377       STATIC_ENTRY("if-match", ""),                      // 39
 378       STATIC_ENTRY("if-modified-since", ""),             // 40
 379       STATIC_ENTRY("if-none-match", ""),                 // 41
 380       STATIC_ENTRY("if-range", ""),                      // 42
 381       STATIC_ENTRY("if-unmodified-since", ""),           // 43
 382       STATIC_ENTRY("last-modified", ""),                 // 44
 383       STATIC_ENTRY("link", ""),                          // 45
 384       STATIC_ENTRY("location", ""),                      // 46
 385       STATIC_ENTRY("max-forwards", ""),                  // 47
 386       STATIC_ENTRY("proxy-authenticate", ""),            // 48
 387       STATIC_ENTRY("proxy-authorization", ""),           // 49
 388       STATIC_ENTRY("range", ""),                         // 50
 389       STATIC_ENTRY("referer", ""),                       // 51
 390       STATIC_ENTRY("refresh", ""),                       // 52
 391       STATIC_ENTRY("retry-after", ""),                   // 53
 392       STATIC_ENTRY("server", ""),                        // 54
 393       STATIC_ENTRY("set-cookie", ""),                    // 55
 394       STATIC_ENTRY("strict-transport-security", ""),     // 56
 395       STATIC_ENTRY("transfer-encoding", ""),             // 57
 396       STATIC_ENTRY("user-agent", ""),                    // 58
 397       STATIC_ENTRY("vary", ""),                          // 59
 398       STATIC_ENTRY("via", ""),                           // 60
 399       STATIC_ENTRY("www-authenticate", ""),              // 61
 400   };
 401   return std::vector<HpackStaticEntry>(
 402       kHpackStaticTable, kHpackStaticTable + arraysize(kHpackStaticTable));
 403 }
 404
 405 #undef STATIC_ENTRY
 406
 407 const HpackHuffmanTable& ObtainHpackHuffmanTable() {
 408   return *SharedHpackHuffmanTable::GetInstance()->table;
 409 }
 410
 411 const HpackStaticTable& ObtainHpackStaticTable() {
 412   return *SharedHpackStaticTable::GetInstance()->table;
 413 }
 414
 415 }  // namespace net