Http11Parser.java - puma-3.11.4 Documentation

// line 1 “ext/puma_http11/http11_parser.java.rl” package org.jruby.puma;

import org.jruby.util.ByteList;

public class Http11Parser {

    Machine

// line 65 “ext/puma_http11/http11_parser.java.rl”

    Data

// line 18 “ext/puma_http11/org/jruby/puma/Http11Parser.java” private static byte[] init__puma_parser_actions_0() {

    return new byte [] {
        0,    1,    0,    1,    2,    1,    3,    1,    4,    1,    5,    1,
        6,    1,    7,    1,    8,    1,    9,    1,   11,    1,   12,    1,
       13,    2,    0,    8,    2,    1,    2,    2,    4,    5,    2,   10,
        7,    2,   12,    7,    3,    9,   10,    7
    };

}

private static final byte _puma_parser_actions[] = init__puma_parser_actions_0();

private static short[] init__puma_parser_key_offsets_0() {

    return new short [] {
        0,    0,    8,   17,   27,   29,   30,   31,   32,   33,   34,   36,
       39,   41,   44,   45,   61,   62,   78,   80,   81,   89,   97,  107,
      115,  125,  134,  142,  150,  159,  168,  177,  186,  195,  204,  213,
      222,  231,  240,  249,  258,  267,  276,  285,  294,  303,  312,  313
    };

}

private static final short _puma_parser_key_offsets[] = init__puma_parser_key_offsets_0();

private static char[] init__puma_parser_trans_keys_0() {

    return new char [] {
       36,   95,   45,   46,   48,   57,   65,   90,   32,   36,   95,   45,
       46,   48,   57,   65,   90,   42,   43,   47,   58,   45,   57,   65,
       90,   97,  122,   32,   35,   72,   84,   84,   80,   47,   48,   57,
       46,   48,   57,   48,   57,   13,   48,   57,   10,   13,   33,  124,
      126,   35,   39,   42,   43,   45,   46,   48,   57,   65,   90,   94,
      122,   10,   33,   58,  124,  126,   35,   39,   42,   43,   45,   46,
       48,   57,   65,   90,   94,  122,   13,   32,   13,   32,   60,   62,
      127,    0,   31,   34,   35,   32,   60,   62,  127,    0,   31,   34,
       35,   43,   58,   45,   46,   48,   57,   65,   90,   97,  122,   32,
       34,   35,   60,   62,  127,    0,   31,   32,   34,   35,   59,   60,
       62,   63,  127,    0,   31,   32,   34,   35,   60,   62,   63,  127,
        0,   31,   32,   34,   35,   60,   62,  127,    0,   31,   32,   34,
       35,   60,   62,  127,    0,   31,   32,   36,   95,   45,   46,   48,
       57,   65,   90,   32,   36,   95,   45,   46,   48,   57,   65,   90,
       32,   36,   95,   45,   46,   48,   57,   65,   90,   32,   36,   95,
       45,   46,   48,   57,   65,   90,   32,   36,   95,   45,   46,   48,
       57,   65,   90,   32,   36,   95,   45,   46,   48,   57,   65,   90,
       32,   36,   95,   45,   46,   48,   57,   65,   90,   32,   36,   95,
       45,   46,   48,   57,   65,   90,   32,   36,   95,   45,   46,   48,
       57,   65,   90,   32,   36,   95,   45,   46,   48,   57,   65,   90,
       32,   36,   95,   45,   46,   48,   57,   65,   90,   32,   36,   95,
       45,   46,   48,   57,   65,   90,   32,   36,   95,   45,   46,   48,
       57,   65,   90,   32,   36,   95,   45,   46,   48,   57,   65,   90,
       32,   36,   95,   45,   46,   48,   57,   65,   90,   32,   36,   95,
       45,   46,   48,   57,   65,   90,   32,   36,   95,   45,   46,   48,
       57,   65,   90,   32,   36,   95,   45,   46,   48,   57,   65,   90,
       32,    0
    };

}

private static final char _puma_parser_trans_keys[] = init__puma_parser_trans_keys_0();

private static byte[] init__puma_parser_single_lengths_0() {

    return new byte [] {
        0,    2,    3,    4,    2,    1,    1,    1,    1,    1,    0,    1,
        0,    1,    1,    4,    1,    4,    2,    1,    4,    4,    2,    6,
        8,    7,    6,    6,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,    1,    0
    };

}

private static final byte _puma_parser_single_lengths[] = init__puma_parser_single_lengths_0();

private static byte[] init__puma_parser_range_lengths_0() {

    return new byte [] {
        0,    3,    3,    3,    0,    0,    0,    0,    0,    0,    1,    1,
        1,    1,    0,    6,    0,    6,    0,    0,    2,    2,    4,    1,
        1,    1,    1,    1,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,    0,    0
    };

}

private static final byte _puma_parser_range_lengths[] = init__puma_parser_range_lengths_0();

private static short[] init__puma_parser_index_offsets_0() {

    return new short [] {
        0,    0,    6,   13,   21,   24,   26,   28,   30,   32,   34,   36,
       39,   41,   44,   46,   57,   59,   70,   73,   75,   82,   89,   96,
      104,  114,  123,  131,  139,  146,  153,  160,  167,  174,  181,  188,
      195,  202,  209,  216,  223,  230,  237,  244,  251,  258,  265,  267
    };

}

private static final short _puma_parser_index_offsets[] = init__puma_parser_index_offsets_0();

private static byte[] init__puma_parser_indicies_0() {

    return new byte [] {
        0,    0,    0,    0,    0,    1,    2,    3,    3,    3,    3,    3,
        1,    4,    5,    6,    7,    5,    5,    5,    1,    8,    9,    1,
       10,    1,   11,    1,   12,    1,   13,    1,   14,    1,   15,    1,
       16,   15,    1,   17,    1,   18,   17,    1,   19,    1,   20,   21,
       21,   21,   21,   21,   21,   21,   21,   21,    1,   22,    1,   23,
       24,   23,   23,   23,   23,   23,   23,   23,   23,    1,   26,   27,
       25,   29,   28,   30,    1,    1,    1,    1,    1,   31,   32,    1,
        1,    1,    1,    1,   33,   34,   35,   34,   34,   34,   34,    1,
        8,    1,    9,    1,    1,    1,    1,   35,   36,    1,   38,   39,
        1,    1,   40,    1,    1,   37,    8,    1,    9,    1,    1,   42,
        1,    1,   41,   43,    1,   45,    1,    1,    1,    1,   44,   46,
        1,   48,    1,    1,    1,    1,   47,    2,   49,   49,   49,   49,
       49,    1,    2,   50,   50,   50,   50,   50,    1,    2,   51,   51,
       51,   51,   51,    1,    2,   52,   52,   52,   52,   52,    1,    2,
       53,   53,   53,   53,   53,    1,    2,   54,   54,   54,   54,   54,
        1,    2,   55,   55,   55,   55,   55,    1,    2,   56,   56,   56,
       56,   56,    1,    2,   57,   57,   57,   57,   57,    1,    2,   58,
       58,   58,   58,   58,    1,    2,   59,   59,   59,   59,   59,    1,
        2,   60,   60,   60,   60,   60,    1,    2,   61,   61,   61,   61,
       61,    1,    2,   62,   62,   62,   62,   62,    1,    2,   63,   63,
       63,   63,   63,    1,    2,   64,   64,   64,   64,   64,    1,    2,
       65,   65,   65,   65,   65,    1,    2,   66,   66,   66,   66,   66,
        1,    2,    1,    1,    0
    };

}

private static final byte _puma_parser_indicies[] = init__puma_parser_indicies_0();

private static byte[] init__puma_parser_trans_targs_0() {

    return new byte [] {
        2,    0,    3,   28,    4,   22,   24,   23,    5,   20,    6,    7,
        8,    9,   10,   11,   12,   13,   14,   15,   16,   17,   47,   17,
       18,   19,   14,   18,   19,   14,    5,   21,    5,   21,   22,   23,
        5,   24,   20,   25,   26,   25,   26,    5,   27,   20,    5,   27,
       20,   29,   30,   31,   32,   33,   34,   35,   36,   37,   38,   39,
       40,   41,   42,   43,   44,   45,   46
    };

}

private static final byte _puma_parser_trans_targs[] = init__puma_parser_trans_targs_0();

private static byte[] init__puma_parser_trans_actions_0() {

    return new byte [] {
        1,    0,   11,    0,    1,    1,    1,    1,   13,   13,    1,    0,
        0,    0,    0,    0,    0,    0,   19,    0,    0,   28,   23,    3,
        5,    7,   31,    7,    0,    9,   25,    1,   15,    0,    0,    0,
       37,    0,   37,   21,   21,    0,    0,   40,   17,   40,   34,    0,
       34,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0
    };

}

private static final byte _puma_parser_trans_actions[] = init__puma_parser_trans_actions_0();

static final int puma_parser_start = 1; static final int puma_parser_first_final = 47; static final int puma_parser_error = 0;

// line 69 “ext/puma_http11/http11_parser.java.rl”

    public static interface ElementCB {
      public void call(Object data, int at, int length);
    }

    public static interface FieldCB {
      public void call(Object data, int field, int flen, int value, int vlen);
    }

    public static class HttpParser {
       int cs;
       int body_start;
       int content_len;
       int nread;
       int mark;
       int field_start;
       int field_len;
       int query_start;

       Object data;
       ByteList buffer;

       public FieldCB http_field;
       public ElementCB request_method;
       public ElementCB request_uri;
       public ElementCB fragment;
       public ElementCB request_path;
       public ElementCB query_string;
       public ElementCB http_version;
       public ElementCB header_done;

       public void init() {
           cs = 0;

// line 225 “ext/puma_http11/org/jruby/puma/Http11Parser.java”

    {
    cs = puma_parser_start;
    }

// line 104 “ext/puma_http11/http11_parser.java.rl”

           body_start = 0;
           content_len = 0;
           mark = 0;
           nread = 0;
           field_len = 0;
           field_start = 0;
       }
    }

    public final HttpParser parser = new HttpParser();

    public int execute(ByteList buffer, int off) {
      int p, pe;
      int cs = parser.cs;
      int len = buffer.length();
      assert off<=len : "offset past end of buffer";

      p = off;
      pe = len;
      // get a copy of the bytes, since it may not start at 0
      // FIXME: figure out how to just use the bytes in-place
      byte[] data = buffer.bytes();
      parser.buffer = buffer;

// line 257 “ext/puma_http11/org/jruby/puma/Http11Parser.java”

    {
    int _klen;
    int _trans = 0;
    int _acts;
    int _nacts;
    int _keys;
    int _goto_targ = 0;

    _goto: while (true) {
    switch ( _goto_targ ) {
    case 0:
    if ( p == pe ) {
            _goto_targ = 4;
            continue _goto;
    }
    if ( cs == 0 ) {
            _goto_targ = 5;
            continue _goto;
    }

case 1:

    _match: do {
    _keys = _puma_parser_key_offsets[cs];
    _trans = _puma_parser_index_offsets[cs];
    _klen = _puma_parser_single_lengths[cs];
    if ( _klen > 0 ) {
            int _lower = _keys;
            int _mid;
            int _upper = _keys + _klen - 1;
            while (true) {
                    if ( _upper < _lower )
                            break;

                    _mid = _lower + ((_upper-_lower) >> 1);
                    if ( data[p] < _puma_parser_trans_keys[_mid] )
                            _upper = _mid - 1;
                    else if ( data[p] > _puma_parser_trans_keys[_mid] )
                            _lower = _mid + 1;
                    else {
                            _trans += (_mid - _keys);
                            break _match;
                    }
            }
            _keys += _klen;
            _trans += _klen;
    }

    _klen = _puma_parser_range_lengths[cs];
    if ( _klen > 0 ) {
            int _lower = _keys;
            int _mid;
            int _upper = _keys + (_klen<<1) - 2;
            while (true) {
                    if ( _upper < _lower )
                            break;

                    _mid = _lower + (((_upper-_lower) >> 1) & ~1);
                    if ( data[p] < _puma_parser_trans_keys[_mid] )
                            _upper = _mid - 2;
                    else if ( data[p] > _puma_parser_trans_keys[_mid+1] )
                            _lower = _mid + 2;
                    else {
                            _trans += ((_mid - _keys)>>1);
                            break _match;
                    }
            }
            _trans += _klen;
    }
    } while (false);

    _trans = _puma_parser_indicies[_trans];
    cs = _puma_parser_trans_targs[_trans];

    if ( _puma_parser_trans_actions[_trans] != 0 ) {
            _acts = _puma_parser_trans_actions[_trans];
            _nacts = (int) _puma_parser_actions[_acts++];
            while ( _nacts-- > 0 )
    {
                    switch ( _puma_parser_actions[_acts++] )
                    {
    case 0:

// line 13 “ext/puma_http11/http11_parser.java.rl”

    {parser.mark = p; }
    break;
    case 1:

// line 15 “ext/puma_http11/http11_parser.java.rl”

    { parser.field_start = p; }
    break;
    case 2:

// line 16 “ext/puma_http11/http11_parser.java.rl”

    { /* FIXME stub */ }
    break;
    case 3:

// line 17 “ext/puma_http11/http11_parser.java.rl”

          {
      parser.field_len = p-parser.field_start;
    }
          break;
          case 4:

// line 21 “ext/puma_http11/http11_parser.java.rl”

    { parser.mark = p; }
    break;
    case 5:

// line 22 “ext/puma_http11/http11_parser.java.rl”

          {
      if(parser.http_field != null) {
        parser.http_field.call(parser.data, parser.field_start, parser.field_len, parser.mark, p-parser.mark);
      }
    }
          break;
          case 6:

// line 27 “ext/puma_http11/http11_parser.java.rl”

          {
      if(parser.request_method != null)
        parser.request_method.call(parser.data, parser.mark, p-parser.mark);
    }
          break;
          case 7:

// line 31 “ext/puma_http11/http11_parser.java.rl”

          {
      if(parser.request_uri != null)
        parser.request_uri.call(parser.data, parser.mark, p-parser.mark);
    }
          break;
          case 8:

// line 35 “ext/puma_http11/http11_parser.java.rl”

          {
      if(parser.fragment != null)
        parser.fragment.call(parser.data, parser.mark, p-parser.mark);
    }
          break;
          case 9:

// line 40 “ext/puma_http11/http11_parser.java.rl”

    {parser.query_start = p; }
    break;
    case 10:

// line 41 “ext/puma_http11/http11_parser.java.rl”

          {
      if(parser.query_string != null)
        parser.query_string.call(parser.data, parser.query_start, p-parser.query_start);
    }
          break;
          case 11:

// line 46 “ext/puma_http11/http11_parser.java.rl”

          {
      if(parser.http_version != null)
        parser.http_version.call(parser.data, parser.mark, p-parser.mark);
    }
          break;
          case 12:

// line 51 “ext/puma_http11/http11_parser.java.rl”

          {
      if(parser.request_path != null)
        parser.request_path.call(parser.data, parser.mark, p-parser.mark);
    }
          break;
          case 13:

// line 56 “ext/puma_http11/http11_parser.java.rl”

          {
      parser.body_start = p + 1;
      if(parser.header_done != null)
        parser.header_done.call(parser.data, p + 1, pe - p - 1);
      { p += 1; _goto_targ = 5; if (true)  continue _goto;}
    }
          break;

// line 422 “ext/puma_http11/org/jruby/puma/Http11Parser.java”

                    }
            }
    }

case 2:

    if ( cs == 0 ) {
            _goto_targ = 5;
            continue _goto;
    }
    if ( ++p != pe ) {
            _goto_targ = 1;
            continue _goto;
    }

case 4: case 5:

    }
    break; }
    }

// line 130 “ext/puma_http11/http11_parser.java.rl”

       parser.cs = cs;
       parser.nread += (p - off);

       assert p <= pe                  : "buffer overflow after parsing execute";
       assert parser.nread <= len      : "nread longer than length";
       assert parser.body_start <= len : "body starts after buffer end";
       assert parser.mark < len        : "mark is after buffer end";
       assert parser.field_len <= len  : "field has length longer than whole buffer";
       assert parser.field_start < len : "field starts after buffer end";

       return parser.nread;
     }

     public int finish() {
      if(has_error()) {
        return -1;
      } else if(is_finished()) {
        return 1;
      } else {
        return 0;
      }
    }

    public boolean has_error() {
      return parser.cs == puma_parser_error;
    }

    public boolean is_finished() {
      return parser.cs == puma_parser_first_final;
    }

}