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src: save progress

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make-http-max-header-size-gyp-configurable
Fedor Indutny 10 years ago
parent 3f1a05a24c
commit 6132d1fefa
1 changed files with 108 additions and 93 deletions
Show Stats Download Patch File Download Diff File

201
http_parser.c
Unescape View File

@ -56,6 +56,14 @@ do { \
parser->http_errno = (e); \
} while(0)
#define CURRENT_STATE() p_state
#define UPDATE_STATE(V) p_state = (V);
#define RETURN(V) \
do { \
parser->state = CURRENT_STATE(); \
return (V); \
} while (0);
/* Run the notify callback FOR, returning ER if it fails */
#define CALLBACK_NOTIFY_(FOR, ER) \
@ -63,9 +71,11 @@ do { \
assert(HTTP_PARSER_ERRNO(parser) == HPE_OK); \
\
if (settings->on_##FOR) { \
parser->state = CURRENT_STATE(); \
if (0 != settings->on_##FOR(parser)) { \
SET_ERRNO(HPE_CB_##FOR); \
} \
UPDATE_STATE(parser->state); \
\
/* We either errored above or got paused; get out */ \
if (HTTP_PARSER_ERRNO(parser) != HPE_OK) { \
@ -87,9 +97,11 @@ do { \
\
if (FOR##_mark) { \
if (settings->on_##FOR) { \
parser->state = CURRENT_STATE(); \
if (0 != settings->on_##FOR(parser, FOR##_mark, (LEN))) { \
SET_ERRNO(HPE_CB_##FOR); \
} \
UPDATE_STATE(parser->state); \
\
/* We either errored above or got paused; get out */ \
if (HTTP_PARSER_ERRNO(parser) != HPE_OK) { \
@ -586,6 +598,7 @@ size_t http_parser_execute (http_parser *parser,
const char *url_mark = 0;
const char *body_mark = 0;
const char *status_mark = 0;
enum state p_state = parser->state;
/* We're in an error state. Don't bother doing anything. */
if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
@ -593,7 +606,7 @@ size_t http_parser_execute (http_parser *parser,
}
if (len == 0) {
switch (parser->state) {
switch (CURRENT_STATE()) {
case s_body_identity_eof:
/* Use of CALLBACK_NOTIFY() here would erroneously return 1 byte read if
* we got paused.
@ -614,11 +627,11 @@ size_t http_parser_execute (http_parser *parser,
}
if (parser->state == s_header_field)
if (CURRENT_STATE() == s_header_field)
header_field_mark = data;
if (parser->state == s_header_value)
if (CURRENT_STATE() == s_header_value)
header_value_mark = data;
switch (parser->state) {
switch (CURRENT_STATE()) {
case s_req_path:
case s_req_schema:
case s_req_schema_slash:
@ -635,12 +648,14 @@ size_t http_parser_execute (http_parser *parser,
case s_res_status:
status_mark = data;
break;
default:
break;
}
for (p=data; p != data + len; p++) {
ch = *p;
if (PARSING_HEADER(parser->state)) {
if (PARSING_HEADER(CURRENT_STATE())) {
++parser->nread;
/* Don't allow the total size of the HTTP headers (including the status
* line) to exceed HTTP_MAX_HEADER_SIZE. This check is here to protect
@ -660,7 +675,7 @@ size_t http_parser_execute (http_parser *parser,
}
reexecute_byte:
switch (parser->state) {
switch (CURRENT_STATE()) {
case s_dead:
/* this state is used after a 'Connection: close' message
@ -680,12 +695,12 @@ size_t http_parser_execute (http_parser *parser,
parser->content_length = ULLONG_MAX;
if (ch == 'H') {
parser->state = s_res_or_resp_H;
UPDATE_STATE(s_res_or_resp_H);
CALLBACK_NOTIFY(message_begin);
} else {
parser->type = HTTP_REQUEST;
parser->state = s_start_req;
UPDATE_STATE(s_start_req);
goto reexecute_byte;
}
@ -695,7 +710,7 @@ size_t http_parser_execute (http_parser *parser,
case s_res_or_resp_H:
if (ch == 'T') {
parser->type = HTTP_RESPONSE;
parser->state = s_res_HT;
UPDATE_STATE(s_res_HT);
} else {
if (ch != 'E') {
SET_ERRNO(HPE_INVALID_CONSTANT);
@ -705,7 +720,7 @@ size_t http_parser_execute (http_parser *parser,
parser->type = HTTP_REQUEST;
parser->method = HTTP_HEAD;
parser->index = 2;
parser->state = s_req_method;
UPDATE_STATE(s_req_method);
}
break;
@ -716,7 +731,7 @@ size_t http_parser_execute (http_parser *parser,
switch (ch) {
case 'H':
parser->state = s_res_H;
UPDATE_STATE(s_res_H);
break;
case CR:
@ -734,22 +749,22 @@ size_t http_parser_execute (http_parser *parser,
case s_res_H:
STRICT_CHECK(ch != 'T');
parser->state = s_res_HT;
UPDATE_STATE(s_res_HT);
break;
case s_res_HT:
STRICT_CHECK(ch != 'T');
parser->state = s_res_HTT;
UPDATE_STATE(s_res_HTT);
break;
case s_res_HTT:
STRICT_CHECK(ch != 'P');
parser->state = s_res_HTTP;
UPDATE_STATE(s_res_HTTP);
break;
case s_res_HTTP:
STRICT_CHECK(ch != '/');
parser->state = s_res_first_http_major;
UPDATE_STATE(s_res_first_http_major);
break;
case s_res_first_http_major:
@ -759,14 +774,14 @@ size_t http_parser_execute (http_parser *parser,
}
parser->http_major = ch - '0';
parser->state = s_res_http_major;
UPDATE_STATE(s_res_http_major);
break;
/* major HTTP version or dot */
case s_res_http_major:
{
if (ch == '.') {
parser->state = s_res_first_http_minor;
UPDATE_STATE(s_res_first_http_minor);
break;
}
@ -794,14 +809,14 @@ size_t http_parser_execute (http_parser *parser,
}
parser->http_minor = ch - '0';
parser->state = s_res_http_minor;
UPDATE_STATE(s_res_http_minor);
break;
/* minor HTTP version or end of request line */
case s_res_http_minor:
{
if (ch == ' ') {
parser->state = s_res_first_status_code;
UPDATE_STATE(s_res_first_status_code);
break;
}
@ -832,7 +847,7 @@ size_t http_parser_execute (http_parser *parser,
goto error;
}
parser->status_code = ch - '0';
parser->state = s_res_status_code;
UPDATE_STATE(s_res_status_code);
break;
}
@ -841,13 +856,13 @@ size_t http_parser_execute (http_parser *parser,
if (!IS_NUM(ch)) {
switch (ch) {
case ' ':
parser->state = s_res_status_start;
UPDATE_STATE(s_res_status_start);
break;
case CR:
parser->state = s_res_line_almost_done;
UPDATE_STATE(s_res_line_almost_done);
break;
case LF:
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
break;
default:
SET_ERRNO(HPE_INVALID_STATUS);
@ -870,30 +885,30 @@ size_t http_parser_execute (http_parser *parser,
case s_res_status_start:
{
if (ch == CR) {
parser->state = s_res_line_almost_done;
UPDATE_STATE(s_res_line_almost_done);
break;
}
if (ch == LF) {
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
break;
}
MARK(status);
parser->state = s_res_status;
UPDATE_STATE(s_res_status);
parser->index = 0;
break;
}
case s_res_status:
if (ch == CR) {
parser->state = s_res_line_almost_done;
UPDATE_STATE(s_res_line_almost_done);
CALLBACK_DATA(status);
break;
}
if (ch == LF) {
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
CALLBACK_DATA(status);
break;
}
@ -902,7 +917,7 @@ size_t http_parser_execute (http_parser *parser,
case s_res_line_almost_done:
STRICT_CHECK(ch != LF);
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
break;
case s_start_req:
@ -939,7 +954,7 @@ size_t http_parser_execute (http_parser *parser,
SET_ERRNO(HPE_INVALID_METHOD);
goto error;
}
parser->state = s_req_method;
UPDATE_STATE(s_req_method);
CALLBACK_NOTIFY(message_begin);
@ -956,7 +971,7 @@ size_t http_parser_execute (http_parser *parser,
matcher = method_strings[parser->method];
if (ch == ' ' && matcher[parser->index] == '\0') {
parser->state = s_req_spaces_before_url;
UPDATE_STATE(s_req_spaces_before_url);
} else if (ch == matcher[parser->index]) {
; /* nada */
} else if (parser->method == HTTP_CONNECT) {
@ -1037,11 +1052,11 @@ size_t http_parser_execute (http_parser *parser,
MARK(url);
if (parser->method == HTTP_CONNECT) {
parser->state = s_req_server_start;
UPDATE_STATE(s_req_server_start);
}
parser->state = parse_url_char((enum state)parser->state, ch);
if (parser->state == s_dead) {
UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
if (CURRENT_STATE() == s_dead) {
SET_ERRNO(HPE_INVALID_URL);
goto error;
}
@ -1062,8 +1077,8 @@ size_t http_parser_execute (http_parser *parser,
SET_ERRNO(HPE_INVALID_URL);
goto error;
default:
parser->state = parse_url_char((enum state)parser->state, ch);
if (parser->state == s_dead) {
UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
if (CURRENT_STATE() == s_dead) {
SET_ERRNO(HPE_INVALID_URL);
goto error;
}
@ -1082,21 +1097,21 @@ size_t http_parser_execute (http_parser *parser,
{
switch (ch) {
case ' ':
parser->state = s_req_http_start;
UPDATE_STATE(s_req_http_start);
CALLBACK_DATA(url);
break;
case CR:
case LF:
parser->http_major = 0;
parser->http_minor = 9;
parser->state = (ch == CR) ?
UPDATE_STATE((ch == CR) ?
s_req_line_almost_done :
s_header_field_start;
s_header_field_start);
CALLBACK_DATA(url);
break;
default:
parser->state = parse_url_char((enum state)parser->state, ch);
if (parser->state == s_dead) {
UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
if (CURRENT_STATE() == s_dead) {
SET_ERRNO(HPE_INVALID_URL);
goto error;
}
@ -1107,7 +1122,7 @@ size_t http_parser_execute (http_parser *parser,
case s_req_http_start:
switch (ch) {
case 'H':
parser->state = s_req_http_H;
UPDATE_STATE(s_req_http_H);
break;
case ' ':
break;
@ -1119,22 +1134,22 @@ size_t http_parser_execute (http_parser *parser,
case s_req_http_H:
STRICT_CHECK(ch != 'T');
parser->state = s_req_http_HT;
UPDATE_STATE(s_req_http_HT);
break;
case s_req_http_HT:
STRICT_CHECK(ch != 'T');
parser->state = s_req_http_HTT;
UPDATE_STATE(s_req_http_HTT);
break;
case s_req_http_HTT:
STRICT_CHECK(ch != 'P');
parser->state = s_req_http_HTTP;
UPDATE_STATE(s_req_http_HTTP);
break;
case s_req_http_HTTP:
STRICT_CHECK(ch != '/');
parser->state = s_req_first_http_major;
UPDATE_STATE(s_req_first_http_major);
break;
/* first digit of major HTTP version */
@ -1145,14 +1160,14 @@ size_t http_parser_execute (http_parser *parser,
}
parser->http_major = ch - '0';
parser->state = s_req_http_major;
UPDATE_STATE(s_req_http_major);
break;
/* major HTTP version or dot */
case s_req_http_major:
{
if (ch == '.') {
parser->state = s_req_first_http_minor;
UPDATE_STATE(s_req_first_http_minor);
break;
}
@ -1180,19 +1195,19 @@ size_t http_parser_execute (http_parser *parser,
}
parser->http_minor = ch - '0';
parser->state = s_req_http_minor;
UPDATE_STATE(s_req_http_minor);
break;
/* minor HTTP version or end of request line */
case s_req_http_minor:
{
if (ch == CR) {
parser->state = s_req_line_almost_done;
UPDATE_STATE(s_req_line_almost_done);
break;
}
if (ch == LF) {
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
break;
}
@ -1222,21 +1237,21 @@ size_t http_parser_execute (http_parser *parser,
goto error;
}
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
break;
}
case s_header_field_start:
{
if (ch == CR) {
parser->state = s_headers_almost_done;
UPDATE_STATE(s_headers_almost_done);
break;
}
if (ch == LF) {
/* they might be just sending \n instead of \r\n so this would be
* the second \n to denote the end of headers*/
parser->state = s_headers_almost_done;
UPDATE_STATE(s_headers_almost_done);
goto reexecute_byte;
}
@ -1250,7 +1265,7 @@ size_t http_parser_execute (http_parser *parser,
MARK(header_field);
parser->index = 0;
parser->state = s_header_field;
UPDATE_STATE(s_header_field);
switch (c) {
case 'c':
@ -1385,7 +1400,7 @@ size_t http_parser_execute (http_parser *parser,
}
if (ch == ':') {
parser->state = s_header_value_discard_ws;
UPDATE_STATE(s_header_value_discard_ws);
CALLBACK_DATA(header_field);
break;
}
@ -1398,12 +1413,12 @@ size_t http_parser_execute (http_parser *parser,
if (ch == ' ' || ch == '\t') break;
if (ch == CR) {
parser->state = s_header_value_discard_ws_almost_done;
UPDATE_STATE(s_header_value_discard_ws_almost_done);
break;
}
if (ch == LF) {
parser->state = s_header_value_discard_lws;
UPDATE_STATE(s_header_value_discard_lws);
break;
}
@ -1413,7 +1428,7 @@ size_t http_parser_execute (http_parser *parser,
{
MARK(header_value);
parser->state = s_header_value;
UPDATE_STATE(s_header_value);
parser->index = 0;
c = LOWER(ch);
@ -1465,13 +1480,13 @@ size_t http_parser_execute (http_parser *parser,
{
if (ch == CR) {
parser->state = s_header_almost_done;
UPDATE_STATE(s_header_almost_done);
CALLBACK_DATA(header_value);
break;
}
if (ch == LF) {
parser->state = s_header_almost_done;
UPDATE_STATE(s_header_almost_done);
CALLBACK_DATA_NOADVANCE(header_value);
goto reexecute_byte;
}
@ -1551,7 +1566,7 @@ size_t http_parser_execute (http_parser *parser,
break;
default:
parser->state = s_header_value;
UPDATE_STATE(s_header_value);
parser->header_state = h_general;
break;
}
@ -1562,14 +1577,14 @@ size_t http_parser_execute (http_parser *parser,
{
STRICT_CHECK(ch != LF);
parser->state = s_header_value_lws;
UPDATE_STATE(s_header_value_lws);
break;
}
case s_header_value_lws:
{
if (ch == ' ' || ch == '\t') {
parser->state = s_header_value_start;
UPDATE_STATE(s_header_value_start);
goto reexecute_byte;
}
@ -1588,26 +1603,26 @@ size_t http_parser_execute (http_parser *parser,
break;
}
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
goto reexecute_byte;
}
case s_header_value_discard_ws_almost_done:
{
STRICT_CHECK(ch != LF);
parser->state = s_header_value_discard_lws;
UPDATE_STATE(s_header_value_discard_lws);
break;
}
case s_header_value_discard_lws:
{
if (ch == ' ' || ch == '\t') {
parser->state = s_header_value_discard_ws;
UPDATE_STATE(s_header_value_discard_ws);
break;
} else {
/* header value was empty */
MARK(header_value);
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
CALLBACK_DATA_NOADVANCE(header_value);
goto reexecute_byte;
}
@ -1619,12 +1634,12 @@ size_t http_parser_execute (http_parser *parser,
if (parser->flags & F_TRAILING) {
/* End of a chunked request */
parser->state = NEW_MESSAGE();
UPDATE_STATE(NEW_MESSAGE());
CALLBACK_NOTIFY(message_complete);
break;
}
parser->state = s_headers_done;
UPDATE_STATE(s_headers_done);
/* Set this here so that on_headers_complete() callbacks can see it */
parser->upgrade =
@ -1650,12 +1665,12 @@ size_t http_parser_execute (http_parser *parser,
default:
SET_ERRNO(HPE_CB_headers_complete);
return p - data; /* Error */
RETURN(p - data); /* Error */
}
}
if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
return p - data;
RETURN(p - data);
}
goto reexecute_byte;
@ -1669,34 +1684,34 @@ size_t http_parser_execute (http_parser *parser,
/* Exit, the rest of the connect is in a different protocol. */
if (parser->upgrade) {
parser->state = NEW_MESSAGE();
UPDATE_STATE(NEW_MESSAGE());
CALLBACK_NOTIFY(message_complete);
return (p - data) + 1;
RETURN((p - data) + 1);
}
if (parser->flags & F_SKIPBODY) {
parser->state = NEW_MESSAGE();
UPDATE_STATE(NEW_MESSAGE());
CALLBACK_NOTIFY(message_complete);
} else if (parser->flags & F_CHUNKED) {
/* chunked encoding - ignore Content-Length header */
parser->state = s_chunk_size_start;
UPDATE_STATE(s_chunk_size_start);
} else {
if (parser->content_length == 0) {
/* Content-Length header given but zero: Content-Length: 0\r\n */
parser->state = NEW_MESSAGE();
UPDATE_STATE(NEW_MESSAGE());
CALLBACK_NOTIFY(message_complete);
} else if (parser->content_length != ULLONG_MAX) {
/* Content-Length header given and non-zero */
parser->state = s_body_identity;
UPDATE_STATE(s_body_identity);
} else {
if (parser->type == HTTP_REQUEST ||
!http_message_needs_eof(parser)) {
/* Assume content-length 0 - read the next */
parser->state = NEW_MESSAGE();
UPDATE_STATE(NEW_MESSAGE());
CALLBACK_NOTIFY(message_complete);
} else {
/* Read body until EOF */
parser->state = s_body_identity_eof;
UPDATE_STATE(s_body_identity_eof);
}
}
}
@ -1722,7 +1737,7 @@ size_t http_parser_execute (http_parser *parser,
p += to_read - 1;
if (parser->content_length == 0) {
parser->state = s_message_done;
UPDATE_STATE(s_message_done);
/* Mimic CALLBACK_DATA_NOADVANCE() but with one extra byte.
*
@ -1748,7 +1763,7 @@ size_t http_parser_execute (http_parser *parser,
break;
case s_message_done:
parser->state = NEW_MESSAGE();
UPDATE_STATE(NEW_MESSAGE());
CALLBACK_NOTIFY(message_complete);
break;
@ -1764,7 +1779,7 @@ size_t http_parser_execute (http_parser *parser,
}
parser->content_length = unhex_val;
parser->state = s_chunk_size;
UPDATE_STATE(s_chunk_size);
break;
}
@ -1775,7 +1790,7 @@ size_t http_parser_execute (http_parser *parser,
assert(parser->flags & F_CHUNKED);
if (ch == CR) {
parser->state = s_chunk_size_almost_done;
UPDATE_STATE(s_chunk_size_almost_done);
break;
}
@ -1783,7 +1798,7 @@ size_t http_parser_execute (http_parser *parser,
if (unhex_val == -1) {
if (ch == ';' || ch == ' ') {
parser->state = s_chunk_parameters;
UPDATE_STATE(s_chunk_parameters);
break;
}
@ -1810,7 +1825,7 @@ size_t http_parser_execute (http_parser *parser,
assert(parser->flags & F_CHUNKED);
/* just ignore this shit. TODO check for overflow */
if (ch == CR) {
parser->state = s_chunk_size_almost_done;
UPDATE_STATE(s_chunk_size_almost_done);
break;
}
break;
@ -1825,9 +1840,9 @@ size_t http_parser_execute (http_parser *parser,
if (parser->content_length == 0) {
parser->flags |= F_TRAILING;
parser->state = s_header_field_start;
UPDATE_STATE(s_header_field_start);
} else {
parser->state = s_chunk_data;
UPDATE_STATE(s_chunk_data);
}
break;
}
@ -1849,7 +1864,7 @@ size_t http_parser_execute (http_parser *parser,
p += to_read - 1;
if (parser->content_length == 0) {
parser->state = s_chunk_data_almost_done;
UPDATE_STATE(s_chunk_data_almost_done);
}
break;
@ -1859,7 +1874,7 @@ size_t http_parser_execute (http_parser *parser,
assert(parser->flags & F_CHUNKED);
assert(parser->content_length == 0);
STRICT_CHECK(ch != CR);
parser->state = s_chunk_data_done;
UPDATE_STATE(s_chunk_data_done);
CALLBACK_DATA(body);
break;
@ -1867,7 +1882,7 @@ size_t http_parser_execute (http_parser *parser,
assert(parser->flags & F_CHUNKED);
STRICT_CHECK(ch != LF);
parser->nread = 0;
parser->state = s_chunk_size_start;
UPDATE_STATE(s_chunk_size_start);
break;
default:
@ -1899,14 +1914,14 @@ size_t http_parser_execute (http_parser *parser,
CALLBACK_DATA_NOADVANCE(body);
CALLBACK_DATA_NOADVANCE(status);
return len;
RETURN(len);
error:
if (HTTP_PARSER_ERRNO(parser) == HPE_OK) {
SET_ERRNO(HPE_UNKNOWN);
}
return (p - data);
RETURN(p - data);
}

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