http11_parser.c

来自「Amarok是一款在LINUX或其他类UNIX操作系统中运行的音频播放器软件。 」· C语言 代码 · 共 1,097 行 · 第 1/2 页

#line 1 "ext/http11/http11_parser.rl"
/**
 * Copyright (c) 2005 Zed A. Shaw
 * You can redistribute it and/or modify it under the same terms as Ruby.
 */
#include "http11_parser.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 114 "ext/http11/http11_parser.rl"


/** Data **/

#line 24 "ext/http11/http11_parser.c"
static const int http_parser_start = 0;

static const int http_parser_first_final = 53;

static const int http_parser_error = 1;

#line 118 "ext/http11/http11_parser.rl"

int http_parser_init(http_parser *parser)  {
  int cs = 0;
  
#line 36 "ext/http11/http11_parser.c"
	{
	cs = http_parser_start;
	}
#line 122 "ext/http11/http11_parser.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 *buffer, size_t len, size_t off)  {
  const char *p, *pe;
  int cs = parser->cs;

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

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

  assert(*pe == '\0' && "pointer does not end on NUL");
  assert(pe - p == len - off && "pointers aren't same distance");


  
#line 68 "ext/http11/http11_parser.c"
	{
	if ( p == pe )
		goto _out;
	switch ( cs )
	{
case 0:
	switch( (*p) ) {
		case 36: goto tr14;
		case 95: goto tr14;
	}
	if ( (*p) < 48 ) {
		if ( 45 <= (*p) && (*p) <= 46 )
			goto tr14;
	} else if ( (*p) > 57 ) {
		if ( 65 <= (*p) && (*p) <= 90 )
			goto tr14;
	} else
		goto tr14;
	goto st1;
st1:
	goto _out1;
tr14:
#line 20 "ext/http11/http11_parser.rl"
	{MARK(mark, p); }
	goto st2;
st2:
	if ( ++p == pe )
		goto _out2;
case 2:
#line 98 "ext/http11/http11_parser.c"
	switch( (*p) ) {
		case 32: goto tr17;
		case 36: goto st34;
		case 95: goto st34;
	}
	if ( (*p) < 48 ) {
		if ( 45 <= (*p) && (*p) <= 46 )
			goto st34;
	} else if ( (*p) > 57 ) {
		if ( 65 <= (*p) && (*p) <= 90 )
			goto st34;
	} else
		goto st34;
	goto st1;
tr17:
#line 34 "ext/http11/http11_parser.rl"
	{ 
    if(parser->request_method != NULL) 
      parser->request_method(parser->data, PTR_TO(mark), LEN(mark, p));
  }
	goto st3;
st3:
	if ( ++p == pe )
		goto _out3;
case 3:
#line 124 "ext/http11/http11_parser.c"
	switch( (*p) ) {
		case 42: goto tr10;
		case 43: goto tr11;
		case 47: goto tr12;
		case 58: goto tr13;
	}
	if ( (*p) < 65 ) {
		if ( 45 <= (*p) && (*p) <= 57 )
			goto tr11;
	} else if ( (*p) > 90 ) {
		if ( 97 <= (*p) && (*p) <= 122 )
			goto tr11;
	} else
		goto tr11;
	goto st1;
tr10:
#line 20 "ext/http11/http11_parser.rl"
	{MARK(mark, p); }
	goto st4;
st4:
	if ( ++p == pe )
		goto _out4;
case 4:
#line 148 "ext/http11/http11_parser.c"
	if ( (*p) == 32 )
		goto tr19;
	goto st1;
tr19:
#line 38 "ext/http11/http11_parser.rl"
	{ 
    if(parser->request_uri != NULL)
      parser->request_uri(parser->data, PTR_TO(mark), LEN(mark, p));
  }
	goto st5;
tr28:
#line 44 "ext/http11/http11_parser.rl"
	{ 
    if(parser->query_string != NULL)
      parser->query_string(parser->data, PTR_TO(query_start), LEN(query_start, p));
  }
#line 38 "ext/http11/http11_parser.rl"
	{ 
    if(parser->request_uri != NULL)
      parser->request_uri(parser->data, PTR_TO(mark), LEN(mark, p));
  }
	goto st5;
tr31:
#line 54 "ext/http11/http11_parser.rl"
	{
    if(parser->request_path != NULL)
      parser->request_path(parser->data, PTR_TO(mark), LEN(mark,p));
  }
#line 38 "ext/http11/http11_parser.rl"
	{ 
    if(parser->request_uri != NULL)
      parser->request_uri(parser->data, PTR_TO(mark), LEN(mark, p));
  }
	goto st5;
tr40:
#line 43 "ext/http11/http11_parser.rl"
	{MARK(query_start, p); }
#line 44 "ext/http11/http11_parser.rl"
	{ 
    if(parser->query_string != NULL)
      parser->query_string(parser->data, PTR_TO(query_start), LEN(query_start, p));
  }
#line 38 "ext/http11/http11_parser.rl"
	{ 
    if(parser->request_uri != NULL)
      parser->request_uri(parser->data, PTR_TO(mark), LEN(mark, p));
  }
	goto st5;
st5:
	if ( ++p == pe )
		goto _out5;
case 5:
#line 201 "ext/http11/http11_parser.c"
	if ( (*p) == 72 )
		goto tr3;
	goto st1;
tr3:
#line 20 "ext/http11/http11_parser.rl"
	{MARK(mark, p); }
	goto st6;
st6:
	if ( ++p == pe )
		goto _out6;
case 6:
#line 213 "ext/http11/http11_parser.c"
	if ( (*p) == 84 )
		goto st7;
	goto st1;
st7:
	if ( ++p == pe )
		goto _out7;
case 7:
	if ( (*p) == 84 )
		goto st8;
	goto st1;
st8:
	if ( ++p == pe )
		goto _out8;
case 8:
	if ( (*p) == 80 )
		goto st9;
	goto st1;
st9:
	if ( ++p == pe )
		goto _out9;
case 9:
	if ( (*p) == 47 )
		goto st10;
	goto st1;
st10:
	if ( ++p == pe )
		goto _out10;
case 10:
	if ( 48 <= (*p) && (*p) <= 57 )
		goto st11;
	goto st1;
st11:
	if ( ++p == pe )
		goto _out11;
case 11:
	if ( (*p) == 46 )
		goto st12;
	if ( 48 <= (*p) && (*p) <= 57 )
		goto st11;
	goto st1;
st12:
	if ( ++p == pe )
		goto _out12;
case 12:
	if ( 48 <= (*p) && (*p) <= 57 )
		goto st13;
	goto st1;
st13:
	if ( ++p == pe )
		goto _out13;
case 13:
	if ( (*p) == 13 )
		goto tr22;
	if ( 48 <= (*p) && (*p) <= 57 )
		goto st13;
	goto st1;
tr22:
#line 49 "ext/http11/http11_parser.rl"
	{	
    if(parser->http_version != NULL)
      parser->http_version(parser->data, PTR_TO(mark), LEN(mark, p));
  }
	goto st14;
tr36:
#line 29 "ext/http11/http11_parser.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 _out14;
case 14:
#line 289 "ext/http11/http11_parser.c"
	if ( (*p) == 10 )
		goto st15;
	goto st1;
st15:
	if ( ++p == pe )
		goto _out15;
case 15:
	switch( (*p) ) {
		case 13: goto st16;
		case 33: goto tr21;
		case 124: goto tr21;
		case 126: goto tr21;
	}
	if ( (*p) < 45 ) {
		if ( (*p) > 39 ) {
			if ( 42 <= (*p) && (*p) <= 43 )
				goto tr21;
		} else if ( (*p) >= 35 )
			goto tr21;
	} else if ( (*p) > 46 ) {
		if ( (*p) < 65 ) {
			if ( 48 <= (*p) && (*p) <= 57 )
				goto tr21;
		} else if ( (*p) > 90 ) {
			if ( 94 <= (*p) && (*p) <= 122 )
				goto tr21;
		} else
			goto tr21;
	} else
		goto tr21;
	goto st1;
st16:
	if ( ++p == pe )
		goto _out16;
case 16:
	if ( (*p) == 10 )
		goto tr25;
	goto st1;
tr25:
#line 59 "ext/http11/http11_parser.rl"
	{ 
    parser->body_start = p - buffer + 1; 
    if(parser->header_done != NULL)
      parser->header_done(parser->data, p + 1, pe - p - 1);
    goto _out53;
  }
	goto st53;
st53:
	if ( ++p == pe )
		goto _out53;
case 53:
#line 341 "ext/http11/http11_parser.c"
	goto st1;
tr21:
#line 23 "ext/http11/http11_parser.rl"
	{ MARK(field_start, p); }
	goto st17;
st17:
	if ( ++p == pe )
		goto _out17;
case 17:
#line 351 "ext/http11/http11_parser.c"
	switch( (*p) ) {
		case 33: goto st17;
		case 58: goto tr16;
		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 st1;
tr16:
#line 24 "ext/http11/http11_parser.rl"
	{ 
    parser->field_len = LEN(field_start, p);
  }
	goto st18;
tr38:
#line 28 "ext/http11/http11_parser.rl"
	{ MARK(mark, p); }
	goto st18;
st18:
	if ( ++p == pe )
		goto _out18;
case 18:
#line 390 "ext/http11/http11_parser.c"
	switch( (*p) ) {
		case 13: goto tr36;
		case 32: goto tr38;
	}
	goto tr37;
tr37:
#line 28 "ext/http11/http11_parser.rl"
	{ MARK(mark, p); }
	goto st19;
st19:
	if ( ++p == pe )
		goto _out19;
case 19:
#line 404 "ext/http11/http11_parser.c"
	if ( (*p) == 13 )
		goto tr36;
	goto st19;
tr11:
#line 20 "ext/http11/http11_parser.rl"
	{MARK(mark, p); }
	goto st20;
st20:
	if ( ++p == pe )
		goto _out20;
case 20:
#line 416 "ext/http11/http11_parser.c"
	switch( (*p) ) {
		case 43: goto st20;
		case 58: goto st21;
	}
	if ( (*p) < 48 ) {
		if ( 45 <= (*p) && (*p) <= 46 )
			goto st20;
	} else if ( (*p) > 57 ) {
		if ( (*p) > 90 ) {
			if ( 97 <= (*p) && (*p) <= 122 )
				goto st20;
		} else if ( (*p) >= 65 )
			goto st20;
	} else
		goto st20;
	goto st1;
tr13:
#line 20 "ext/http11/http11_parser.rl"
	{MARK(mark, p); }
	goto st21;
st21:
	if ( ++p == pe )
		goto _out21;
case 21:
#line 441 "ext/http11/http11_parser.c"
	switch( (*p) ) {
		case 32: goto tr19;
		case 37: goto st22;
		case 60: goto st1;
		case 62: goto st1;
		case 127: goto st1;
	}
	if ( (*p) > 31 ) {
		if ( 34 <= (*p) && (*p) <= 35 )
			goto st1;
	} else if ( (*p) >= 0 )
		goto st1;
	goto st21;
st22:
	if ( ++p == pe )
		goto _out22;
case 22:
	if ( (*p) < 65 ) {
		if ( 48 <= (*p) && (*p) <= 57 )
			goto st23;
	} else if ( (*p) > 70 ) {
		if ( 97 <= (*p) && (*p) <= 102 )
			goto st23;
	} else
		goto st23;
	goto st1;
st23:
	if ( ++p == pe )
		goto _out23;
case 23:
	if ( (*p) < 65 ) {
		if ( 48 <= (*p) && (*p) <= 57 )
			goto st21;
	} else if ( (*p) > 70 ) {
		if ( 97 <= (*p) && (*p) <= 102 )
			goto st21;
	} else
		goto st21;
	goto st1;
tr12:
#line 20 "ext/http11/http11_parser.rl"
	{MARK(mark, p); }
	goto st24;
st24:
	if ( ++p == pe )
		goto _out24;
case 24:
#line 489 "ext/http11/http11_parser.c"
	switch( (*p) ) {
		case 32: goto tr31;
		case 37: goto st25;
		case 59: goto tr33;
		case 60: goto st1;
		case 62: goto st1;
		case 63: goto tr34;
		case 127: goto st1;
	}
	if ( (*p) > 31 ) {
		if ( 34 <= (*p) && (*p) <= 35 )
			goto st1;
	} else if ( (*p) >= 0 )
		goto st1;
	goto st24;
st25:
	if ( ++p == pe )
		goto _out25;
case 25:
	if ( (*p) < 65 ) {
		if ( 48 <= (*p) && (*p) <= 57 )
			goto st26;
	} else if ( (*p) > 70 ) {
		if ( 97 <= (*p) && (*p) <= 102 )
			goto st26;
	} else
		goto st26;
	goto st1;
st26:
	if ( ++p == pe )
		goto _out26;
case 26:
	if ( (*p) < 65 ) {
		if ( 48 <= (*p) && (*p) <= 57 )
			goto st24;
	} else if ( (*p) > 70 ) {
		if ( 97 <= (*p) && (*p) <= 102 )
			goto st24;
	} else
		goto st24;
	goto st1;
tr33:
#line 54 "ext/http11/http11_parser.rl"
	{
    if(parser->request_path != NULL)
      parser->request_path(parser->data, PTR_TO(mark), LEN(mark,p));
  }
	goto st27;
st27:
	if ( ++p == pe )
		goto _out27;
case 27:
#line 542 "ext/http11/http11_parser.c"
	switch( (*p) ) {
		case 32: goto tr19;
		case 37: goto st28;
		case 60: goto st1;
		case 62: goto st1;
		case 63: goto st30;
		case 127: goto st1;
	}