2 +--------------------------------------------------------------------+
4 +--------------------------------------------------------------------+
5 | Redistribution and use in source and binary forms, with or without |
6 | modification, are permitted provided that the conditions mentioned |
7 | in the accompanying LICENSE file are met. |
8 +--------------------------------------------------------------------+
9 | Copyright (c) 2004-2011, Michael Wallner <mike@php.net> |
10 +--------------------------------------------------------------------+
13 #include "php_http_api.h"
15 typedef struct php_http_header_parser_state_spec
{
16 php_http_header_parser_state_t state
;
18 } php_http_header_parser_state_spec_t
;
20 static const php_http_header_parser_state_spec_t php_http_header_parser_states
[] = {
21 {PHP_HTTP_HEADER_PARSER_STATE_START
, 1},
22 {PHP_HTTP_HEADER_PARSER_STATE_KEY
, 1},
23 {PHP_HTTP_HEADER_PARSER_STATE_VALUE
, 1},
24 {PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE
, 0},
25 {PHP_HTTP_HEADER_PARSER_STATE_DONE
, 0}
29 PHP_HTTP_API php_http_header_parser_t
*php_http_header_parser_init(php_http_header_parser_t
*parser TSRMLS_DC
)
32 parser
= emalloc(sizeof(*parser
));
34 memset(parser
, 0, sizeof(*parser
));
36 TSRMLS_SET_CTX(parser
->ts
);
42 PHP_HTTP_API php_http_header_parser_state_t
php_http_header_parser_state_push(php_http_header_parser_t
*parser
, unsigned argc
, ...)
46 php_http_header_parser_state_t state
= 0;
48 va_start(va_args
, argc
);
49 for (i
= 0; i
< argc
; ++i
) {
50 state
= va_arg(va_args
, php_http_header_parser_state_t
);
51 zend_stack_push(&parser
->stack
, &state
, sizeof(state
));
58 PHP_HTTP_API php_http_header_parser_state_t
php_http_header_parser_state_is(php_http_header_parser_t
*parser
)
60 php_http_header_parser_state_t
*state
;
62 if (SUCCESS
== zend_stack_top(&parser
->stack
, (void *) &state
)) {
65 return PHP_HTTP_HEADER_PARSER_STATE_START
;
68 PHP_HTTP_API php_http_header_parser_state_t
php_http_header_parser_state_pop(php_http_header_parser_t
*parser
)
70 php_http_header_parser_state_t state
, *state_ptr
;
71 if (SUCCESS
== zend_stack_top(&parser
->stack
, (void *) &state_ptr
)) {
73 zend_stack_del_top(&parser
->stack
);
76 return PHP_HTTP_HEADER_PARSER_STATE_START
;
79 PHP_HTTP_API
void php_http_header_parser_dtor(php_http_header_parser_t
*parser
)
81 zend_stack_destroy(&parser
->stack
);
82 php_http_info_dtor(&parser
->info
);
83 STR_FREE(parser
->_key
.str
);
84 STR_FREE(parser
->_val
.str
);
87 PHP_HTTP_API
void php_http_header_parser_free(php_http_header_parser_t
**parser
)
90 php_http_header_parser_dtor(*parser
);
96 PHP_HTTP_API STATUS
php_http_header_parser_parse(php_http_header_parser_t
*parser
, php_http_buffer_t
*buffer
, unsigned flags
, HashTable
*headers
, php_http_info_callback_t callback_func
, void *callback_arg
)
98 TSRMLS_FETCH_FROM_CTX(parser
->ts
);
100 while (buffer
->used
|| !php_http_header_parser_states
[php_http_header_parser_state_is(parser
)].need_data
) {
102 const char *state
[] = {"START", "KEY", "VALUE", "HEADER_DONE", "DONE"};
103 fprintf(stderr
, "#HP: %s (%d)\n", php_http_header_parser_state_is(parser
) < 0 ? "FAILURE" : state
[php_http_header_parser_state_is(parser
)], zend_hash_num_elements(headers
));
104 _dpf(0, buffer
->data
, buffer
->used
);
106 switch (php_http_header_parser_state_pop(parser
)) {
107 case PHP_HTTP_HEADER_PARSER_STATE_FAILURE
:
108 return php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_FAILURE
);
110 case PHP_HTTP_HEADER_PARSER_STATE_START
: {
111 char *ptr
= buffer
->data
;
113 while (ptr
- buffer
->data
< buffer
->used
&& PHP_HTTP_IS_CTYPE(space
, *ptr
)) {
117 php_http_buffer_cut(buffer
, 0, ptr
- buffer
->data
);
118 php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_KEY
);
122 case PHP_HTTP_HEADER_PARSER_STATE_KEY
: {
123 const char *colon
, *eol_str
;
126 if (buffer
->data
== (eol_str
= php_http_locate_bin_eol(buffer
->data
, buffer
->used
, &eol_len
))) {
128 php_http_buffer_cut(buffer
, 0, eol_len
);
129 php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_DONE
);
130 } else if (php_http_info_parse(&parser
->info
, php_http_buffer_fix(buffer
)->data TSRMLS_CC
)) {
131 /* new message starting with request/response line */
133 callback_func(callback_arg
, &headers
, &parser
->info TSRMLS_CC
);
135 php_http_info_dtor(&parser
->info
);
136 php_http_buffer_cut(buffer
, 0, eol_str
+ eol_len
- buffer
->data
);
137 php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE
);
138 } else if ((colon
= memchr(buffer
->data
, ':', buffer
->used
)) && (!eol_str
|| eol_str
> colon
)) {
140 parser
->_key
.str
= estrndup(buffer
->data
, parser
->_key
.len
= colon
- buffer
->data
);
141 while (PHP_HTTP_IS_CTYPE(space
, *++colon
));
142 php_http_buffer_cut(buffer
, 0, colon
- buffer
->data
);
143 php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_VALUE
);
145 /* neither reqeust/response line nor header: string */
146 return php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_FAILURE
);
151 case PHP_HTTP_HEADER_PARSER_STATE_VALUE
: {
157 if ((eol_str
= php_http_locate_bin_eol(buffer
->data
, buffer
->used
, &eol_len
))) {
158 if (eol_str
+ eol_len
- buffer
->data
< buffer
->used
) {
159 char *nextline
= eol_str
+ eol_len
;
161 if (*nextline
== '\t' || *nextline
== ' ') {
162 while (nextline
< buffer
->data
+ buffer
->used
&& (*nextline
== '\t' || *nextline
== ' ')) {
165 php_http_buffer_cut(buffer
, eol_str
- buffer
->data
, nextline
- eol_str
);
170 parser
->_val
.str
= estrndup(buffer
->data
, parser
->_val
.len
= eol_str
- buffer
->data
);
171 php_http_buffer_cut(buffer
, 0, eol_str
+ eol_len
- buffer
->data
);
172 php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE
);
173 } else if (flags
& PHP_HTTP_HEADER_PARSER_CLEANUP
) {
175 parser
->_val
.str
= estrndup(buffer
->data
, parser
->_val
.len
= buffer
->used
);
176 php_http_buffer_reset(buffer
);
178 php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE
);
180 return php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_VALUE
);
187 case PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE
:
188 if (parser
->_key
.str
&& parser
->_val
.str
) {
191 INIT_PZVAL_ARRAY(&array
, headers
);
192 php_http_pretty_key(parser
->_key
.str
, parser
->_key
.len
, 1, 1);
193 if (SUCCESS
== zend_symtable_find(headers
, parser
->_key
.str
, parser
->_key
.len
+ 1, (void *) &exist
)) {
194 convert_to_array(*exist
);
195 add_next_index_stringl(*exist
, parser
->_val
.str
, parser
->_val
.len
, 0);
197 add_assoc_stringl_ex(&array
, parser
->_key
.str
, parser
->_key
.len
+ 1, parser
->_val
.str
, parser
->_val
.len
, 0);
199 parser
->_val
.str
= NULL
;
202 STR_SET(parser
->_key
.str
, NULL
);
203 STR_SET(parser
->_val
.str
, NULL
);
205 php_http_header_parser_state_push(parser
, 1, PHP_HTTP_HEADER_PARSER_STATE_KEY
);
208 case PHP_HTTP_HEADER_PARSER_STATE_DONE
:
209 return PHP_HTTP_HEADER_PARSER_STATE_DONE
;
213 return php_http_header_parser_state_is(parser
);
221 * vim600: noet sw=4 ts=4 fdm=marker
222 * vim<600: noet sw=4 ts=4