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file 419 lines (386 sloc) 8.259 kb
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#line 1 "http_response_parse.rl"

#include "ngx_tcp_upstream_check.h"

#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>


#define LEN(AT, FPC) (FPC - buffer - parser->AT)
#define MARK(M,FPC) (parser->M = (FPC) - buffer)
#define PTR_TO(F) (buffer + parser->F)

/** Machine **/


#line 88 "http_response_parse.rl"


/** Data **/

#line 26 "http_response_parse.c"
static const int http_parser_start = 1;
static const int http_parser_first_final = 20;
static const int http_parser_error = 0;

static const int http_parser_en_main = 1;


#line 92 "http_response_parse.rl"

int http_parser_init(http_parser *parser) {
  int cs = 0;
#line 39 "http_response_parse.c"
{
cs = http_parser_start;
}

#line 96 "http_response_parse.rl"
  parser->cs = cs;
  parser->body_start = 0;
  parser->content_len = 0;
  parser->mark = 0;
  parser->nread = 0;
  parser->field_len = 0;
  parser->field_start = 0;

  return(1);
}


/** exec **/
size_t http_parser_execute(http_parser *parser, const char signed *buffer, size_t len, size_t off) {
  const signed char *p, *pe;
  int cs = parser->cs;

  assert(off <= len && "offset past end of buffer");

  p = buffer + off;
  pe = buffer + len;

#line 68 "http_response_parse.c"
{
if ( p == pe )
goto _test_eof;
switch ( cs )
{
case 1:
if ( (*p) == 72 )
goto tr0;
goto st0;
st0:
cs = 0;
goto _out;
tr0:
#line 21 "http_response_parse.rl"
{MARK(mark, p); }
goto st2;
st2:
if ( ++p == pe )
goto _test_eof2;
case 2:
#line 89 "http_response_parse.c"
if ( (*p) == 84 )
goto st3;
goto st0;
st3:
if ( ++p == pe )
goto _test_eof3;
case 3:
if ( (*p) == 84 )
goto st4;
goto st0;
st4:
if ( ++p == pe )
goto _test_eof4;
case 4:
if ( (*p) == 80 )
goto st5;
goto st0;
st5:
if ( ++p == pe )
goto _test_eof5;
case 5:
if ( (*p) == 47 )
goto st6;
goto st0;
st6:
if ( ++p == pe )
goto _test_eof6;
case 6:
if ( 48 <= (*p) && (*p) <= 57 )
goto st7;
goto st0;
st7:
if ( ++p == pe )
goto _test_eof7;
case 7:
if ( (*p) == 46 )
goto st8;
if ( 48 <= (*p) && (*p) <= 57 )
goto st7;
goto st0;
st8:
if ( ++p == pe )
goto _test_eof8;
case 8:
if ( 48 <= (*p) && (*p) <= 57 )
goto st9;
goto st0;
st9:
if ( ++p == pe )
goto _test_eof9;
case 9:
if ( (*p) == 32 )
goto tr9;
if ( 48 <= (*p) && (*p) <= 57 )
goto st9;
goto st0;
tr9:
#line 36 "http_response_parse.rl"
{
    if(parser->http_version != NULL)
      parser->http_version(parser->data, PTR_TO(mark), LEN(mark, p));
  }
goto st10;
st10:
if ( ++p == pe )
goto _test_eof10;
case 10:
#line 157 "http_response_parse.c"
if ( 48 <= (*p) && (*p) <= 57 )
goto tr10;
goto st0;
tr10:
#line 21 "http_response_parse.rl"
{MARK(mark, p); }
goto st11;
st11:
if ( ++p == pe )
goto _test_eof11;
case 11:
#line 169 "http_response_parse.c"
if ( (*p) == 32 )
goto tr11;
if ( 48 <= (*p) && (*p) <= 57 )
goto st11;
goto st0;
tr11:
#line 41 "http_response_parse.rl"
{
    if(parser->status_code != NULL)
      parser->status_code(parser->data, PTR_TO(mark), LEN(mark,p));
  }
goto st12;
st12:
if ( ++p == pe )
goto _test_eof12;
case 12:
#line 186 "http_response_parse.c"
if ( (*p) < 11 ) {
if ( 0 <= (*p) && (*p) <= 9 )
goto tr13;
} else if ( (*p) > 12 ) {
if ( 14 <= (*p) )
goto tr13;
} else
goto tr13;
goto st0;
tr13:
#line 21 "http_response_parse.rl"
{MARK(mark, p); }
goto st13;
st13:
if ( ++p == pe )
goto _test_eof13;
case 13:
#line 204 "http_response_parse.c"
if ( (*p) == 13 )
goto tr15;
if ( (*p) > 9 ) {
if ( 11 <= (*p) )
goto st13;
} else if ( (*p) >= 0 )
goto st13;
goto st0;
tr15:
#line 46 "http_response_parse.rl"
{
    if(parser->reason_phrase != NULL)
      parser->reason_phrase(parser->data, PTR_TO(mark), LEN(mark,p));
  }
goto st14;
tr23:
#line 28 "http_response_parse.rl"
{ MARK(mark, p); }
#line 30 "http_response_parse.rl"
{
    if(parser->http_field != NULL) {
      parser->http_field(parser->data, PTR_TO(field_start), parser->field_len, PTR_TO(mark), LEN(mark, p));
    }
  }
goto st14;
tr26:
#line 30 "http_response_parse.rl"
{
    if(parser->http_field != NULL) {
      parser->http_field(parser->data, PTR_TO(field_start), parser->field_len, PTR_TO(mark), LEN(mark, p));
    }
  }
goto st14;
st14:
if ( ++p == pe )
goto _test_eof14;
case 14:
#line 242 "http_response_parse.c"
if ( (*p) == 10 )
goto st15;
goto st0;
st15:
if ( ++p == pe )
goto _test_eof15;
case 15:
switch( (*p) ) {
case 13: goto st16;
case 33: goto tr18;
case 124: goto tr18;
case 126: goto tr18;
}
if ( (*p) < 45 ) {
if ( (*p) > 39 ) {
if ( 42 <= (*p) && (*p) <= 43 )
goto tr18;
} else if ( (*p) >= 35 )
goto tr18;
} else if ( (*p) > 46 ) {
if ( (*p) < 65 ) {
if ( 48 <= (*p) && (*p) <= 57 )
goto tr18;
} else if ( (*p) > 90 ) {
if ( 94 <= (*p) && (*p) <= 122 )
goto tr18;
} else
goto tr18;
} else
goto tr18;
goto st0;
st16:
if ( ++p == pe )
goto _test_eof16;
case 16:
if ( (*p) == 10 )
goto tr19;
goto st0;
tr19:
#line 51 "http_response_parse.rl"
{
    parser->body_start = p - buffer + 1;
    if(parser->header_done != NULL)
      parser->header_done(parser->data, p + 1, pe - p - 1);
    {p++; cs = 20; goto _out;}
  }
goto st20;
st20:
if ( ++p == pe )
goto _test_eof20;
case 20:
#line 294 "http_response_parse.c"
goto st0;
tr18:
#line 23 "http_response_parse.rl"
{ MARK(field_start, p); }
goto st17;
st17:
if ( ++p == pe )
goto _test_eof17;
case 17:
#line 304 "http_response_parse.c"
switch( (*p) ) {
case 33: goto st17;
case 58: goto tr21;
case 124: goto st17;
case 126: goto st17;
}
if ( (*p) < 45 ) {
if ( (*p) > 39 ) {
if ( 42 <= (*p) && (*p) <= 43 )
goto st17;
} else if ( (*p) >= 35 )
goto st17;
} else if ( (*p) > 46 ) {
if ( (*p) < 65 ) {
if ( 48 <= (*p) && (*p) <= 57 )
goto st17;
} else if ( (*p) > 90 ) {
if ( 94 <= (*p) && (*p) <= 122 )
goto st17;
} else
goto st17;
} else
goto st17;
goto st0;
tr21:
#line 24 "http_response_parse.rl"
{
    parser->field_len = LEN(field_start, p);
  }
goto st18;
tr24:
#line 28 "http_response_parse.rl"
{ MARK(mark, p); }
goto st18;
st18:
if ( ++p == pe )
goto _test_eof18;
case 18:
#line 343 "http_response_parse.c"
switch( (*p) ) {
case 13: goto tr23;
case 32: goto tr24;
}
goto tr22;
tr22:
#line 28 "http_response_parse.rl"
{ MARK(mark, p); }
goto st19;
st19:
if ( ++p == pe )
goto _test_eof19;
case 19:
#line 357 "http_response_parse.c"
if ( (*p) == 13 )
goto tr26;
goto st19;
}
_test_eof2: cs = 2; goto _test_eof;
_test_eof3: cs = 3; goto _test_eof;
_test_eof4: cs = 4; goto _test_eof;
_test_eof5: cs = 5; goto _test_eof;
_test_eof6: cs = 6; goto _test_eof;
_test_eof7: cs = 7; goto _test_eof;
_test_eof8: cs = 8; goto _test_eof;
_test_eof9: cs = 9; goto _test_eof;
_test_eof10: cs = 10; goto _test_eof;
_test_eof11: cs = 11; goto _test_eof;
_test_eof12: cs = 12; goto _test_eof;
_test_eof13: cs = 13; goto _test_eof;
_test_eof14: cs = 14; goto _test_eof;
_test_eof15: cs = 15; goto _test_eof;
_test_eof16: cs = 16; goto _test_eof;
_test_eof20: cs = 20; goto _test_eof;
_test_eof17: cs = 17; goto _test_eof;
_test_eof18: cs = 18; goto _test_eof;
_test_eof19: cs = 19; goto _test_eof;

_test_eof: {}
_out: {}
}

#line 119 "http_response_parse.rl"

  if (!http_parser_has_error(parser))
    parser->cs = cs;
  parser->nread += p - (buffer + 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);
}

int http_parser_finish(http_parser *parser)
{
  if (http_parser_has_error(parser) ) {
    return -1;
  } else if (http_parser_is_finished(parser) ) {
    return 1;
  } else {
    return 0;
  }
}

int http_parser_has_error(http_parser *parser) {
  return parser->cs == http_parser_error;
}

int http_parser_is_finished(http_parser *parser) {
  return parser->cs >= http_parser_first_final;
}
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