void mk_cache_worker_exit()
{
char *cache_error;
/* Cache header request -> last modified */
mk_ptr_free(MK_TLS_GET(mk_tls_cache_header_lm));
mk_mem_free(MK_TLS_GET(mk_tls_cache_header_lm));
/* Cache header request -> content length */
mk_ptr_free(MK_TLS_GET(mk_tls_cache_header_cl));
mk_mem_free(MK_TLS_GET(mk_tls_cache_header_cl));
/* Cache iov header struct */
mk_iov_free(MK_TLS_GET(mk_tls_cache_iov_header));
/* Cache gmtime buffer */
mk_mem_free(MK_TLS_GET(mk_tls_cache_gmtime));
/* Cache the most used text representations of utime2gmt */
mk_mem_free(MK_TLS_GET(mk_tls_cache_gmtext));
/* Cache buffer for strerror_r(2) */
cache_error = pthread_getspecific(mk_utils_error_key);
mk_mem_free(cache_error);
}
void mk_server_listen_free()
{
struct mk_list *list;
struct mk_list *tmp;
struct mk_list *head;
struct mk_server_listen *listener;
list = MK_TLS_GET(mk_tls_server_listen);
mk_list_foreach_safe(head, tmp, list) {
listener = mk_list_entry(head, struct mk_server_listen, _head);
mk_list_del(&listener->_head);
mk_mem_free(listener);
}
static void mk_utils_gmt_cache_add(char *data, time_t time)
{
unsigned int i, min = 0;
struct mk_gmt_cache *gcache = MK_TLS_GET(mk_tls_cache_gmtext);
for (i = 1; i < MK_GMT_CACHES; i++) {
if (gcache[i].hits < gcache[min].hits)
min = i;
}
gcache[min].hits = 1;
gcache[min].time = time;
memcpy(gcache[min].text, data, 32);
}
static int mk_utils_gmt_cache_get(char **data, time_t date)
{
unsigned int i;
struct mk_gmt_cache *gcache = MK_TLS_GET(mk_tls_cache_gmtext);
if (mk_unlikely(!gcache)) {
return MK_FALSE;
}
for (i = 0; i < MK_GMT_CACHES; i++) {
if (date == gcache[i].time) {
memcpy(*data, gcache[i].text, 32);
gcache[i].hits++;
return MK_TRUE;
}
}
return MK_FALSE;
}
/* Send response headers */
int mk_header_prepare(struct mk_http_session *cs, struct mk_http_request *sr,
struct mk_server *server)
{
int i = 0;
unsigned long len = 0;
char *buffer = 0;
mk_ptr_t response;
struct response_headers *sh;
struct mk_iov *iov;
sh = &sr->headers;
iov = &sh->headers_iov;
/* HTTP Status Code */
if (sh->status == MK_CUSTOM_STATUS) {
response.data = sh->custom_status.data;
response.len = sh->custom_status.len;
}
else {
for (i = 0; i < status_response_len; i++) {
if (status_response[i].status == sh->status) {
response.data = status_response[i].response;
response.len = status_response[i].length;
break;
}
}
}
/* Invalid status set */
mk_bug(i == status_response_len);
mk_iov_add(iov, response.data, response.len, MK_FALSE);
/*
* Preset headers (mk_clock.c):
*
* - Server
* - Date
*/
mk_iov_add(iov,
headers_preset.data,
headers_preset.len,
MK_FALSE);
/* Last-Modified */
if (sh->last_modified > 0) {
mk_ptr_t *lm = MK_TLS_GET(mk_tls_cache_header_lm);
lm->len = mk_utils_utime2gmt(&lm->data, sh->last_modified);
mk_iov_add(iov,
mk_header_last_modified.data,
mk_header_last_modified.len,
MK_FALSE);
mk_iov_add(iov,
lm->data,
lm->len,
MK_FALSE);
}
/* Connection */
if (sh->connection == 0) {
if (cs->close_now == MK_FALSE) {
if (sr->connection.len > 0) {
if (sr->protocol != MK_HTTP_PROTOCOL_11) {
mk_iov_add(iov,
mk_header_conn_ka.data,
mk_header_conn_ka.len,
MK_FALSE);
}
}
}
else {
mk_iov_add(iov,
mk_header_conn_close.data,
mk_header_conn_close.len,
MK_FALSE);
}
}
else if (sh->connection == MK_HEADER_CONN_UPGRADED) {
mk_iov_add(iov,
mk_header_conn_upgrade.data,
mk_header_conn_upgrade.len,
MK_FALSE);
}
/* Location */
if (sh->location != NULL) {
mk_iov_add(iov,
mk_header_short_location.data,
mk_header_short_location.len,
MK_FALSE);
mk_iov_add(iov,
sh->location,
strlen(sh->location),
MK_TRUE);
}
/* allowed methods */
if (sh->allow_methods.len > 0) {
mk_iov_add(iov,
mk_header_allow.data,
mk_header_allow.len,
MK_FALSE);
mk_iov_add(iov,
sh->allow_methods.data,
sh->allow_methods.len,
MK_FALSE);
}
/* Content type */
if (sh->content_type.len > 0) {
mk_iov_add(iov,
sh->content_type.data,
sh->content_type.len,
MK_FALSE);
}
/*
* Transfer Encoding: the transfer encoding header is just sent when
* the response has some content defined by the HTTP status response
*/
switch (sh->transfer_encoding) {
case MK_HEADER_TE_TYPE_CHUNKED:
mk_iov_add(iov,
mk_header_te_chunked.data,
mk_header_te_chunked.len,
MK_FALSE);
break;
}
/* E-Tag */
if (sh->etag_len > 0) {
mk_iov_add(iov, sh->etag_buf, sh->etag_len, MK_FALSE);
}
/* Content-Encoding */
if (sh->content_encoding.len > 0) {
mk_iov_add(iov, mk_header_content_encoding.data,
mk_header_content_encoding.len,
MK_FALSE);
mk_iov_add(iov, sh->content_encoding.data,
sh->content_encoding.len,
MK_FALSE);
}
/* Content-Length */
if (sh->content_length >= 0 && sh->transfer_encoding != 0) {
/* Map content length to MK_POINTER */
mk_ptr_t *cl = MK_TLS_GET(mk_tls_cache_header_cl);
mk_string_itop(sh->content_length, cl);
/* Set headers */
mk_iov_add(iov,
mk_header_content_length.data,
mk_header_content_length.len,
MK_FALSE);
mk_iov_add(iov,
cl->data,
cl->len,
MK_FALSE);
}
if ((sh->content_length != 0 && (sh->ranges[0] >= 0 || sh->ranges[1] >= 0)) &&
server->resume == MK_TRUE) {
buffer = 0;
/* yyy- */
if (sh->ranges[0] >= 0 && sh->ranges[1] == -1) {
mk_string_build(&buffer,
&len,
"%s bytes %d-%ld/%ld\r\n",
RH_CONTENT_RANGE,
sh->ranges[0],
(sh->real_length - 1), sh->real_length);
mk_iov_add(iov, buffer, len, MK_TRUE);
}
/* yyy-xxx */
if (sh->ranges[0] >= 0 && sh->ranges[1] >= 0) {
mk_string_build(&buffer,
&len,
"%s bytes %d-%d/%ld\r\n",
RH_CONTENT_RANGE,
sh->ranges[0], sh->ranges[1], sh->real_length);
mk_iov_add(iov, buffer, len, MK_TRUE);
}
/* -xxx */
if (sh->ranges[0] == -1 && sh->ranges[1] > 0) {
mk_string_build(&buffer,
&len,
"%s bytes %ld-%ld/%ld\r\n",
RH_CONTENT_RANGE,
(sh->real_length - sh->ranges[1]),
(sh->real_length - 1), sh->real_length);
mk_iov_add(iov, buffer, len, MK_TRUE);
}
}
if (sh->upgrade == MK_HEADER_UPGRADED_H2C) {
mk_iov_add(iov, mk_header_upgrade_h2c.data, mk_header_upgrade_h2c.len,
MK_FALSE);
}
if (sh->cgi == SH_NOCGI || sh->breakline == MK_HEADER_BREAKLINE) {
if (!sr->headers._extra_rows) {
mk_iov_add(iov, mk_iov_crlf.data, mk_iov_crlf.len,
MK_FALSE);
}
else {
mk_iov_add(sr->headers._extra_rows, mk_iov_crlf.data,
mk_iov_crlf.len, MK_FALSE);
}
}
/*
* Configure the Stream to dispatch the headers
*/
/* Set the IOV input stream */
sr->in_headers.buffer = iov;
sr->in_headers.bytes_total = iov->total_len;
sr->in_headers.cb_finished = mk_header_cb_finished;
if (sr->headers._extra_rows) {
/* Our main sr->stream contains the main headers (header_iov)
* and 'may' have already some linked data. If we have some
* extra headers rows we need to link this IOV right after
* the main header_iov.
*/
struct mk_stream_input *in = &sr->in_headers_extra;
in->type = MK_STREAM_IOV;
in->dynamic = MK_FALSE;
in->cb_consumed = NULL;
in->cb_finished = cb_stream_iov_extended_free;
in->stream = &sr->stream;
in->buffer = sr->headers._extra_rows;
in->bytes_total = sr->headers._extra_rows->total_len;
mk_list_add_after(&sr->in_headers_extra._head,
&sr->in_headers._head,
&sr->stream.inputs);
}
sh->sent = MK_TRUE;
return 0;
}
/*
*This function given a unix time, set in a mk_ptr_t
* the date in the RFC1123 format like:
*
* Wed, 23 Jun 2010 22:32:01 GMT
*
* it also adds a 'CRLF' at the end
*/
int mk_utils_utime2gmt(char **data, time_t date)
{
const int size = 31;
unsigned short year, mday, hour, min, sec;
char *buf=0;
struct tm *gtm;
if (date == 0) {
if ((date = time(NULL)) == -1) {
return -1;
}
}
else {
/* Maybe it's converted already? */
if (mk_utils_gmt_cache_get(data, date) == MK_TRUE) {
return size;
}
}
/* Convert unix time to struct tm */
gtm = MK_TLS_GET(mk_tls_cache_gmtime);
/* If this function was invoked from a non-thread context it should exit */
mk_bug(!gtm);
gtm = gmtime_r(&date, gtm);
if (!gtm) {
return -1;
}
/* struct tm -> tm_year counts number of years after 1900 */
year = gtm->tm_year + 1900;
/* Signed division is slow, by using unsigned we gain 25% speed */
mday = gtm->tm_mday;
hour = gtm->tm_hour;
min = gtm->tm_min;
sec = gtm->tm_sec;
/* Compose template */
buf = *data;
/* Week day */
memcpy(buf, mk_date_wd[gtm->tm_wday], 5);
buf += 5;
/* Day of the month */
*buf++ = ('0' + (mday / 10));
*buf++ = ('0' + (mday % 10));
*buf++ = ' ';
/* Month */
memcpy(buf, mk_date_ym[gtm->tm_mon], 4);
buf += 4;
/* Year */
*buf++ = ('0' + (year / 1000) % 10);
*buf++ = ('0' + (year / 100) % 10);
*buf++ = ('0' + (year / 10) % 10);
*buf++ = ('0' + (year % 10));
*buf++ = ' ';
/* Hour */
*buf++ = ('0' + (hour / 10));
*buf++ = ('0' + (hour % 10));
*buf++ = ':';
/* Minutes */
*buf++ = ('0' + (min / 10));
*buf++ = ('0' + (min % 10));
*buf++ = ':';
/* Seconds */
*buf++ = ('0' + (sec / 10));
*buf++ = ('0' + (sec % 10));
/* GMT Time zone + CRLF */
memcpy(buf, " GMT\r\n\0", 7);
/* Add new entry to the cache */
mk_utils_gmt_cache_add(*data, date);
/* Set mk_ptr_t data len */
return size;
}
