static int
http_date_parse_format_imf_fixdate(struct http_date_parser *parser)
{
/*
IMF-fixdate = day-name "," SP date1 SP time-of-day SP GMT
; fixed length/zone/capitalization subset of the format
; see Section 3.3 of [RFC5322]
date1 = day SP month SP year
; e.g., 02 Jun 1982
Remaining: {...} SP day SP month SP year SP time-of-day SP GMT
*/
/* SP day */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_day(parser) <= 0)
return -1;
/* SP month */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_month(parser) <= 0)
return -1;
/* SP year */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_year(parser) <= 0)
return -1;
/* SP time-of-day SP GMT */
return http_date_parse_time_gmt(parser);
}
static int
http_date_parse_format_rfc1123(struct http_date_parser *parser)
{
/*
rfc1123-date = day-name "," SP date1 SP time-of-day SP GMT
; fixed length subset of the format defined in
; Section 5.2.14 of [RFC1123]
date1 = day SP month SP year
; e.g., 02 Jun 1982
Remaining: {...} SP day SP month SP year SP time-of-day SP GMT
*/
/* SP day */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_day(parser) <= 0)
return -1;
/* SP month */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_month(parser) <= 0)
return -1;
/* SP year */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_year(parser) <= 0)
return -1;
/* SP time-of-day SP GMT */
return http_date_parse_time_gmt(parser);
}
static int
http_date_parse_format_asctime(struct http_date_parser *parser)
{
int ret;
/*
asctime-date = day-name SP date3 SP time-of-day SP year
date3 = month SP ( 2DIGIT / ( SP 1DIGIT ))
; month day (e.g., Jun 2)
Remaining: {...} month SP ( 2DIGIT / ( SP 1DIGIT )) SP time-of-day SP year
*/
/* month */
if (http_date_parse_month(parser) <= 0)
return -1;
/* SP */
if (http_date_parse_sp(parser) <= 0)
return -1;
/* SP 1DIGIT / 2DIGIT */
if ((ret=http_date_parse_sp(parser)) < 0)
return -1;
if (ret == 0) {
if (http_date_parse_number(parser, 2, &parser->tm.tm_mday) <= 0)
return -1;
} else {
if (http_date_parse_number(parser, 1, &parser->tm.tm_mday) <= 0)
return -1;
}
/* SP time-of-day */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_time_of_day(parser) <= 0)
return -1;
/* SP year */
if (http_date_parse_sp(parser) <= 0)
return -1;
return http_date_parse_year(parser);
}
static inline int
http_date_parse_time_gmt(struct http_date_parser *parser)
{
string_t *gmt;
/* Remaining: {...} SP time-of-day SP GMT
*/
/* SP time-of-day */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_time_of_day(parser) <= 0)
return -1;
/* SP GMT */
if (http_date_parse_sp(parser) <= 0)
return -1;
if (http_date_parse_word(parser, 3, &gmt) <= 0 ||
strcmp("GMT", str_c(gmt)) != 0)
return -1;
return 1;
}
static int
http_date_parse_format_rfc850(struct http_date_parser *parser)
{
/*
rfc850-date = day-name-l "," SP date2 SP time-of-day SP GMT
date2 = day "-" month "-" 2DIGIT
; day-month-year (e.g., 02-Jun-82)
Remaining: "," SP day "-" month "-" 2DIGIT SP time-of-day SP GMT
*/
/* "," SP */
if (parser->cur >= parser->end || parser->cur[0] != ',')
return -1;
parser->cur++;
if (http_date_parse_sp(parser) <= 0)
return -1;
/* day */
if (http_date_parse_day(parser) <= 0)
return -1;
/* "-" */
if (parser->cur >= parser->end || parser->cur[0] != '-')
return -1;
parser->cur++;
/* month */
if (http_date_parse_month(parser) <= 0)
return -1;
/* "-" */
if (parser->cur >= parser->end || parser->cur[0] != '-')
return -1;
parser->cur++;
/* 2DIGIT */
if (http_date_parse_number(parser, 2, &parser->tm.tm_year) <= 0)
return -1;
if (parser->tm.tm_year < 70)
parser->tm.tm_year += 100;
/* SP time-of-day SP GMT */
return http_date_parse_time_gmt(parser);
}
