/* http protocol */
static int mod_http_set_keepalive(calipso_request_t *request)
{
const char * conn;
calipso_reply_t *reply;
calipso_client_t *client;
client = calipso_request_get_client(request);
reply = calipso_request_get_reply(request);
client->keepalive = NOK;
conn = calipso_request_get_header_value(request, "connection");
if(conn != NULL && !strcasecmp(conn,"keep-alive")) {
/*limit keep alives*/
int max;
client->keepalives++;
max = client->server->keep_alive_max - client->keepalives;
if(max > 0) {
client->keepalive = OK;
if(USE_HEADER_HTTP_KEEPALIVE_TIMEMAX) {
calipso_reply_set_header_value(reply, "Keep-Alive",
"timeout=%d, max=%d", KEEPALIVE_TIMEOUT, max);
}
}
}
calipso_reply_set_header_value(reply, "Connection",
client->keepalive ? "Keep-Alive" : "Close");
return OK;
}
static int request_set_header_vals(calipso_request_t *request)
{
char *host = calipso_request_get_header_value(request, "host");
char *clen = calipso_request_get_header_value(request, "content-length");
if (host) {
char * p = strrchr(host, ':');
request->host =
(p) ? cpo_pool_strndup(request->pool, host, p - host) : cpo_pool_strdup(
request->pool, host);
}
if (clen) {
request->body_length = cpo_atoi(clen);
} /*XXX: transfer-coding */
return CPO_OK;
}
static int mod_http_set_if_modified_since(calipso_request_t *request, const char *http_date)
{
const char *modified_since = calipso_request_get_header_value(request, "if-modified-since");
if(modified_since && !strcmp(http_date , modified_since)) {
calipso_reply_set_status(request->reply, HTTP_NOT_MODIFIED);
return OK;
}
return NOK;
}
static int mod_http_partial_content(calipso_request_t *request, int fd)
{
/* HTTP_PARTIAL_CONTENT */
char *range;
char *type;
char *offset1;
char *offset2;
uintmax_t total_size;
uintmax_t partial_size;
range = calipso_request_get_header_value(request, "range");
if (range) {
calipso_reply_set_status(request->reply, HTTP_PARTIAL_CONTENT);
type = offset1 = offset2 = NULL;
http_range_tokenize(range, &type, &offset1 , &offset2);
TRACE("RANGE: %s\n", range);
TRACE("type: %s offset1: %s offset2: %s \n", type, offset1, offset2);
total_size = calipso_resource_get_size(request->reply->resource);
partial_size = total_size - atol(offset1);
TRACE("partial size: %llu ? total size %llu\n", partial_size, total_size);
calipso_reply_set_header_value(request->reply,
"content-range", "bytes=%s-%llu/%llu", offset1, total_size - 1, total_size);
calipso_reply_set_header_value(request->reply,
"Content-Length", "%llu", partial_size);
/*set fd position */
(off_t)lseek(fd, (off_t)atoi(offset1), SEEK_SET);
}
/* !HTTP_PARTIAL_CONTENT*/
return OK;
}
