static inline int create_headers(struct watcher* _w, str *dst, str *content_type)
{
dstring_t buf;
time_t t;
int err = 0;
dstr_init(&buf, 256);
str_clear(dst);
/* required by RFC 3261 */
dstr_append_zt(&buf, "Max-Forwards: 70\r\n");
/* Event header */
dstr_append_zt(&buf, "Event: ");
dstr_append_zt(&buf, event_package2str(_w->event_package));
dstr_append_zt(&buf, "\r\n");
/* Content-Type header */
/* content types can have dynamical parameters (multipart/related)
* => don't generate them "staticaly"; use values created in the
* time of document creation */
if (!is_str_empty(content_type)) { /* documents without body doesn't need it */
dstr_append_zt(&buf, "Content-Type: ");
dstr_append_str(&buf, content_type);
dstr_append_zt(&buf, "\r\n");
}
/* Contact header */
if (is_str_empty(&_w->server_contact)) {
LOG(L_WARN, "add_contact_hf(): Can't add empty contact to NOTIFY.\n");
}
else {
dstr_append_zt(&buf, "Contact: ");
dstr_append_str(&buf, &_w->server_contact);
dstr_append_zt(&buf, "\r\n");
}
/* Subscription-State header */
if (_w->expires) t = _w->expires - time(0);
else t = 0;
if (add_subs_state_hf(&buf, _w->status, t) < 0) {
LOG(L_ERR, "create_headers(): Error while adding Subscription-State\n");
dstr_destroy(&buf);
return -3;
}
err = dstr_get_str(&buf, dst);
dstr_destroy(&buf);
return err;
}
static inline int create_headers(struct watcher* _w)
{
time_t t;
subs_state_t s;
headers.len = 0;
if (add_event_hf(&headers, BUF_LEN, _w->preferred_mimetype) < 0) {
LOG(L_ERR, "create_headers(): Error while adding Event header field\n");
return -1;
}
if (add_cont_type_hf(&headers, BUF_LEN - headers.len, _w->preferred_mimetype) < 0) {
LOG(L_ERR, "create_headers(): Error while adding Content-Type header field\n");
return -2;
}
if (add_contact_hf(&headers, BUF_LEN - headers.len, &_w->uri) < 0) {
LOG(L_ERR, "create_headers(): Error while adding Contact header field\n");
return -3;
}
if (_w && _w->expires) t = _w->expires - time(0);
else t = 0;
if (t == 0) {
s = SS_TERMINATED;
} else {
s = SS_ACTIVE;
}
if (add_subs_state_hf(&headers, BUF_LEN - headers.len, s, SR_TIMEOUT, t) < 0) {
LOG(L_ERR, "create_headers(): Error while adding Subscription-State\n");
return -3;
}
return 0;
}
