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http-parser
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User info implementation

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v0.10
Bertrand Paquet 13 years ago
parent ed8475d49f
commit 7965096276
3 changed files with 59 additions and 11 deletions
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54
http_parser.c
Unescape View File

@ -335,6 +335,8 @@ enum header_states
enum http_host_state
{
s_http_host_dead = 1
, s_http_userinfo_start
, s_http_userinfo
, s_http_host_start
, s_http_host_v6_start
, s_http_host
@ -352,6 +354,8 @@ enum http_host_state
#define IS_NUM(c) ((c) >= '0' && (c) <= '9')
#define IS_ALPHANUM(c) (IS_ALPHA(c) || IS_NUM(c))
#define IS_HEX(c) (IS_NUM(c) || (LOWER(c) >= 'a' && LOWER(c) <= 'f'))
#define IS_MARK(c) ((c) == '-' || (c) == '_' || (c) == '.' || (c) == '!' || (c) == '~' || (c) == '*' || (c) == '\'' || (c) == '(' || (c) == ')')
#define IS_USERINFO_CHAR(c) (IS_ALPHANUM(c) || IS_MARK(c) || (c) == '%' || (c) == ';' || (c) == ':' || (c) == '&' || (c) == '=' || (c) == '+' || (c) == '$' || (c) == ',')
#if HTTP_PARSER_STRICT
#define TOKEN(c) (tokens[(unsigned char)c])
@ -408,7 +412,7 @@ int http_message_needs_eof(http_parser *parser);
* URL and non-URL states by looking for these.
*/
static enum state
parse_url_char(enum state s, const char ch)
parse_url_char(enum state s, const char ch, int * found_at)
{
if (ch == ' ' || ch == '\r' || ch == '\n') {
return s_dead;
@ -471,7 +475,14 @@ parse_url_char(enum state s, const char ch)
return s_req_query_string_start;
}
if (IS_ALPHANUM(ch) || ch == '_' || ch == '@' || ch == '[' || ch == ']' || ch == '.' || ch == '-' || ch == '%' || ch == ';' || ch == ':' || ch == '&' || ch == '=' || ch == '+' || ch == '$' || ch == ',') {
if (IS_USERINFO_CHAR(ch) || ch == '[' || ch == ']') {
return s_req_host;
}
if (ch == '@') {
if (found_at) {
*found_at = 1;
}
return s_req_host;
}
@ -959,7 +970,7 @@ size_t http_parser_execute (http_parser *parser,
parser->state = s_req_host_start;
}
parser->state = parse_url_char((enum state)parser->state, ch);
parser->state = parse_url_char((enum state)parser->state, ch, 0);
if (parser->state == s_dead) {
SET_ERRNO(HPE_INVALID_URL);
goto error;
@ -981,7 +992,7 @@ 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);
parser->state = parse_url_char((enum state)parser->state, ch, 0);
if (parser->state == s_dead) {
SET_ERRNO(HPE_INVALID_URL);
goto error;
@ -1013,7 +1024,7 @@ size_t http_parser_execute (http_parser *parser,
CALLBACK_DATA(url);
break;
default:
parser->state = parse_url_char((enum state)parser->state, ch);
parser->state = parse_url_char((enum state)parser->state, ch, 0);
if (parser->state == s_dead) {
SET_ERRNO(HPE_INVALID_URL);
goto error;
@ -1890,8 +1901,20 @@ http_errno_description(enum http_errno err) {
return http_strerror_tab[err].description;
}
static enum http_host_state http_parse_host_char(enum http_host_state s, const char ch) {
static enum http_host_state
http_parse_host_char(enum http_host_state s, const char ch) {
switch(s) {
case s_http_userinfo:
case s_http_userinfo_start:
if (ch == '@') {
return s_http_host_start;
}
if (IS_USERINFO_CHAR(ch)) {
return s_http_userinfo;
}
break;
case s_http_host_start:
if (ch == '[') {
return s_http_host_v6_start;
@ -1944,7 +1967,7 @@ static enum http_host_state http_parse_host_char(enum http_host_state s, const c
return s_http_host_dead;
}
int http_parse_host(const char * buf, struct http_parser_url *u) {
int http_parse_host(const char * buf, struct http_parser_url *u, int found_at) {
enum http_host_state s;
int i;
@ -1954,11 +1977,12 @@ int http_parse_host(const char * buf, struct http_parser_url *u) {
u->field_data[UF_HOST].len = 0;
i = 0;
s = s_http_host_start;
s = found_at ? s_http_userinfo_start : s_http_host_start;
for(; i < len; i ++) {
char ch = buf[start + i];
enum http_host_state new_s = http_parse_host_char(s, ch);
if (new_s == s_http_host_dead) {
return 1;
}
@ -1987,6 +2011,15 @@ int http_parse_host(const char * buf, struct http_parser_url *u) {
u->field_data[UF_PORT].len ++;
break;
case s_http_userinfo:
if (s != s_http_userinfo) {
u->field_data[UF_USERINFO].off = start + i;
u->field_data[UF_USERINFO].len = 0;
u->field_set |= (1 << UF_USERINFO);
}
u->field_data[UF_USERINFO].len ++;
break;
default:
break;
}
@ -2013,13 +2046,14 @@ http_parser_parse_url(const char *buf, size_t buflen, int is_connect,
enum state s;
const char *p;
enum http_parser_url_fields uf, old_uf;
int found_at = 0;
u->port = u->field_set = 0;
s = is_connect ? s_req_host_start : s_req_spaces_before_url;
uf = old_uf = UF_MAX;
for (p = buf; p < buf + buflen; p++) {
s = parse_url_char(s, *p);
s = parse_url_char(s, *p, &found_at);
/* Figure out the next field that we're operating on */
switch (s) {
@ -2073,7 +2107,7 @@ http_parser_parse_url(const char *buf, size_t buflen, int is_connect,
}
if ((u->field_set & (1 << UF_HOST)) != 0) {
if (http_parse_host(buf, u) != 0) {
if (http_parse_host(buf, u, found_at) != 0) {
return 1;
}
}

3
http_parser.h
Unescape View File

@ -256,7 +256,8 @@ enum http_parser_url_fields
, UF_PATH = 3
, UF_QUERY = 4
, UF_FRAGMENT = 5
, UF_MAX = 6
, UF_USERINFO = 6
, UF_MAX = 7
};

13
test.c
Unescape View File

@ -1973,6 +1973,7 @@ const struct url_test url_tests[] =
,{ 15, 1 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -1991,6 +1992,7 @@ const struct url_test url_tests[] =
,{ 19, 1 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2009,6 +2011,7 @@ const struct url_test url_tests[] =
,{ 0, 0 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2027,6 +2030,7 @@ const struct url_test url_tests[] =
,{ 17, 1 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2045,6 +2049,7 @@ const struct url_test url_tests[] =
,{ 20, 1 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2063,6 +2068,7 @@ const struct url_test url_tests[] =
,{ 0, 0 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2081,6 +2087,7 @@ const struct url_test url_tests[] =
,{ 17, 12 } /* UF_PATH */
,{ 30,187 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2099,6 +2106,7 @@ const struct url_test url_tests[] =
,{ 0, 10 } /* UF_PATH */
,{ 11, 10 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2118,6 +2126,7 @@ const struct url_test url_tests[] =
,{ 0, 10 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 11, 4 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2136,6 +2145,7 @@ const struct url_test url_tests[] =
,{ 29, 6 } /* UF_PATH */
,{ 36, 69 } /* UF_QUERY */
,{106, 7 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2154,6 +2164,7 @@ const struct url_test url_tests[] =
,{ 20, 8 } /* UF_PATH */
,{ 29, 12 } /* UF_QUERY */
,{ 42, 4 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2254,6 +2265,7 @@ const struct url_test url_tests[] =
,{ 0, 9 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0
@ -2270,6 +2282,7 @@ const struct url_test url_tests[] =
,{ 0, 9 } /* UF_PATH */
,{ 0, 0 } /* UF_QUERY */
,{ 0, 0 } /* UF_FRAGMENT */
,{ 0, 0 } /* UF_USERINFO */
}
}
,.rv=0

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