static ngx_int_t internal_respond_status(subscriber_t *self, ngx_int_t status_code, const ngx_str_t *status_line) {
internal_subscriber_t *f = (internal_subscriber_t *)self;
DBG("%p status %i", self, status_code);
if(status_code == NGX_HTTP_GONE) {
self->dequeue_after_response = 1;
}
f->respond_status(status_code, (void *)status_line, f->privdata);
reset_timer(f);
return dequeue_maybe(self);
}
static ngx_int_t internal_respond_message(subscriber_t *self, nchan_msg_t *msg) {
internal_subscriber_t *f = (internal_subscriber_t *)self;
verify_subscriber_last_msg_id(self, msg);
DBG("%p (%s) respond msg %p", self, f->sub.name, msg);
f->respond_message(NGX_OK, msg, f->privdata);
reset_timer(f);
return dequeue_maybe(self);
}
static ngx_int_t longpoll_respond_status(subscriber_t *self, ngx_int_t status_code, const ngx_str_t *status_line) {
full_subscriber_t *fsub = (full_subscriber_t *)self;
ngx_http_request_t *r = fsub->sub.request;
nchan_request_ctx_t *ctx = ngx_http_get_module_ctx(r, nchan_module);
nchan_loc_conf_t *cf = fsub->sub.cf;
if(fsub->data.act_as_intervalpoll) {
if(status_code == NGX_HTTP_NO_CONTENT || status_code == NGX_HTTP_NOT_MODIFIED || status_code == NGX_HTTP_NOT_FOUND ) {
status_code = NGX_HTTP_NOT_MODIFIED;
}
}
else if(status_code == NGX_HTTP_NO_CONTENT || status_code == NGX_HTTP_NOT_MODIFIED) {
if(cf->longpoll_multimsg) {
if(fsub->data.multimsg_first != NULL) {
longpoll_multimsg_respond(fsub);
dequeue_maybe(self);
}
return NGX_OK;
}
else {
//don't care, ignore
return NGX_OK;
}
}
DBG("%p respond req %p status %i", self, r, status_code);
nchan_set_msgid_http_response_headers(r, &self->last_msgid);
//disable abort handler
fsub->data.cln->handler = empty_handler;
if(ctx->request_origin_header.len > 0) {
nchan_add_response_header(r, &NCHAN_HEADER_ALLOW_ORIGIN, &cf->allow_origin);
}
nchan_respond_status(r, status_code, status_line, 0);
dequeue_maybe(self);
return NGX_OK;
}
static ngx_int_t longpoll_respond_status(subscriber_t *self, ngx_int_t status_code, const ngx_str_t *status_line) {
full_subscriber_t *fsub = (full_subscriber_t *)self;
ngx_http_request_t *r = fsub->sub.request;
nchan_loc_conf_t *cf = fsub->sub.cf;
//DBG("%p got status %i", self, status_code);
if(fsub->data.act_as_intervalpoll) {
if(status_code == NGX_HTTP_NO_CONTENT || status_code == NGX_HTTP_NOT_MODIFIED || status_code == NGX_HTTP_NOT_FOUND ) {
status_code = NGX_HTTP_NOT_MODIFIED;
}
}
else if(status_code == NGX_HTTP_NO_CONTENT || (status_code == NGX_HTTP_NOT_MODIFIED && !status_line)) {
if(cf->longpoll_multimsg) {
if(fsub->data.multimsg_first != NULL) {
longpoll_multipart_respond(fsub);
dequeue_maybe(self);
}
return NGX_OK;
}
else {
//don't care, ignore
return NGX_OK;
}
}
DBG("%p respond req %p status %i", self, r, status_code);
fsub->sub.dequeue_after_response = 1;
nchan_set_msgid_http_response_headers(r, NULL, &self->last_msgid);
//disable abort handler
fsub->data.cln->handler = empty_handler;
nchan_respond_status(r, status_code, status_line, 0);
dequeue_maybe(self);
return NGX_OK;
}
static ngx_int_t longpoll_respond_message(subscriber_t *self, nchan_msg_t *msg) {
full_subscriber_t *fsub = (full_subscriber_t *)self;
ngx_int_t rc;
char *err = NULL;
ngx_http_request_t *r = fsub->sub.request;
nchan_request_ctx_t *ctx = ngx_http_get_module_ctx(r, nchan_module);
nchan_loc_conf_t *cf = fsub->sub.cf;
DBG("%p respond req %p msg %p", self, r, msg);
ctx->prev_msg_id = self->last_msgid;
update_subscriber_last_msg_id(self, msg);
ctx->msg_id = self->last_msgid;
//disable abort handler
fsub->data.cln->handler = empty_handler;
//verify_unique_response(&fsub->data.request->uri, &self->last_msgid, msg, self);
if(!cf->longpoll_multimsg) {
assert(fsub->data.already_responded != 1);
fsub->data.already_responded = 1;
if(ctx->request_origin_header.len > 0) {
nchan_add_response_header(r, &NCHAN_HEADER_ALLOW_ORIGIN, &cf->allow_origin);
}
if((rc = nchan_respond_msg(r, msg, &self->last_msgid, 0, &err)) != NGX_OK) {
return abort_response(self, err);
}
}
else {
if((rc = longpoll_multimsg_add(fsub, msg, &err)) != NGX_OK) {
return abort_response(self, err);
}
}
dequeue_maybe(self);
return rc;
}
static ngx_int_t longpoll_respond_message(subscriber_t *self, nchan_msg_t *msg) {
full_subscriber_t *fsub = (full_subscriber_t *)self;
ngx_int_t rc;
char *err = NULL;
ngx_http_request_t *r = fsub->sub.request;
nchan_request_ctx_t *ctx = ngx_http_get_module_ctx(r, ngx_nchan_module);
nchan_loc_conf_t *cf = fsub->sub.cf;
DBG("%p respond req %p msg %p", self, r, msg);
ctx->prev_msg_id = self->last_msgid;
update_subscriber_last_msg_id(self, msg);
ctx->msg_id = self->last_msgid;
//verify_unique_response(&fsub->data.request->uri, &self->last_msgid, msg, self);
if(fsub->data.timeout_ev.timer_set) {
ngx_del_timer(&fsub->data.timeout_ev);
}
if(!cf->longpoll_multimsg) {
//disable abort handler
fsub->data.cln->handler = empty_handler;
assert(fsub->data.already_responded != 1);
fsub->data.already_responded = 1;
if((rc = nchan_respond_msg(r, msg, &self->last_msgid, 0, &err)) != NGX_OK) {
return abort_response(self, err);
}
}
else {
if((rc = longpoll_multipart_add(fsub, msg, &err)) != NGX_OK) {
return abort_response(self, err);
}
}
dequeue_maybe(self);
return rc;
}
static ngx_int_t abort_response(subscriber_t *sub, char *errmsg) {
ERR("abort! %s", errmsg ? errmsg : "unknown error");
dequeue_maybe(sub);
return NGX_ERROR;
}
