void nxd_http_client_proto_start_request(nxd_http_client_proto* hcp, nxweb_http_request* req) { //nxweb_http_request* resp=&hcp->resp; hcp->nxb=nxp_alloc(hcp->nxb_pool); nxb_init(hcp->nxb, NXWEB_CONN_NXB_SIZE); hcp->req=req; if (!req->nxb) req->nxb=hcp->nxb; if (!req->host) req->host=hcp->host; nxe_loop* loop=hcp->data_in.super.loop; hcp->req_headers_ptr=_nxweb_prepare_client_request_headers(req); //nxweb_log_error("REQ: %s", hcp->req_headers_ptr); if (!hcp->req_body_in.pair && req->content && req->content_length>0) { nxd_obuffer_init(&hcp->ob, req->content, req->content_length); nxe_connect_streams(loop, &hcp->ob.data_out, &hcp->req_body_in); } if (hcp->state==HCP_IDLE) hcp->state=HCP_SENDING_HEADERS; nxe_unset_timer(loop, NXWEB_TIMER_KEEP_ALIVE, &hcp->timer_keep_alive); hcp->req_body_sending_started=0; hcp->receiving_100_continue=0; hcp->request_complete=0; hcp->response_body_complete=0; hcp->queued_error_message.l=0; nxe_istream_set_ready(loop, &hcp->data_out); }
static void rbuffer_data_in_do_read(nxe_ostream* os, nxe_istream* is) { nxd_rbuffer* rb=(nxd_rbuffer*)((char*)os-offsetof(nxd_rbuffer, data_in)); //nxe_loop* loop=os->super.loop; nxweb_log_debug("rbuffer_data_in_do_read"); nxe_size_t size; char* ptr=nxd_rbuffer_get_write_ptr(rb, &size); assert(size); /* if (!size) { // this should never happen nxe_ostream_unset_ready(os); return; } */ nxe_flags_t flags=0; nxe_ssize_t bytes_received=ISTREAM_CLASS(is)->read(is, os, ptr, size, &flags); if (bytes_received>0) { nxd_rbuffer_write(rb, bytes_received); } if (flags&NXEF_EOF) { //nxweb_log_error("rb[%p] received EOF", rb); rb->eof=1; nxe_istream_set_ready(os->super.loop, &rb->data_out); // even when no bytes received make sure we signal readiness on EOF } }
static nxe_ssize_t req_body_in_write(nxe_ostream* os, nxe_istream* is, int fd, nxe_data ptr, nxe_size_t size, nxe_flags_t* flags) { //nxweb_log_error("req_body_in_write(%d)", size); nxd_http_client_proto* hcp=(nxd_http_client_proto*)((char*)os-offsetof(nxd_http_client_proto, req_body_in)); nxe_loop* loop=os->super.loop; if (hcp->state!=HCP_SENDING_BODY) { nxe_ostream_unset_ready(os); nxe_istream_set_ready(loop, &hcp->data_out); // get notified when next_os ready return 0; } hcp->req_body_sending_started=1; nxe_unset_timer(loop, NXWEB_TIMER_WRITE, &hcp->timer_write); nxe_ssize_t bytes_sent=0; if (size>0) { nxe_ostream* next_os=hcp->data_out.pair; if (next_os) { nxe_flags_t wflags=*flags; if (next_os->ready) bytes_sent=OSTREAM_CLASS(next_os)->write(next_os, &hcp->data_out, 0, (nxe_data)ptr, size, &wflags); if (!next_os->ready) { //nxweb_log_error("req_body_in_write(%d) - next_os unready", size); nxe_ostream_unset_ready(os); nxe_istream_set_ready(loop, &hcp->data_out); // get notified when next_os becomes ready again } } else { nxweb_log_error("no connected device for hcp->data_out"); nxe_ostream_unset_ready(os); } } if (*flags&NXEF_EOF && bytes_sent==size) { // end of request => get response nxe_ostream_unset_ready(os); start_receiving_response(hcp, loop); return bytes_sent; } nxe_set_timer(loop, NXWEB_TIMER_WRITE, &hcp->timer_write); return bytes_sent; }
void nxd_rbuffer_write(nxd_rbuffer* rb, int size) { nxweb_log_debug("nxd_rbuffer_write"); if (size) { rb->write_ptr+=size; assert(rb->write_ptr <= rb->end_ptr); if (rb->write_ptr >= rb->end_ptr) rb->write_ptr=rb->start_ptr; rb->last_write=1; if (rb->data_out.super.loop) nxe_istream_set_ready(rb->data_out.super.loop, &rb->data_out); else rb->data_out.ready=1; if (rb->read_ptr==rb->write_ptr) { // nxd_rbuffer_is_full(rb) if (rb->data_in.super.loop) nxe_ostream_unset_ready(&rb->data_in); else rb->data_in.ready=0; } } }
static void data_error_on_message(nxe_subscriber* sub, nxe_publisher* pub, nxe_data data) { nxd_http_client_proto* hcp=(nxd_http_client_proto*)((char*)sub-offsetof(nxd_http_client_proto, data_error)); nxe_loop* loop=sub->super.loop; if ((data.i==NXE_HUP || data.i==NXE_RDHUP || data.i==NXE_RDCLOSED) && (hcp->resp.content_length<0 && !hcp->resp.chunked_encoding) && (hcp->state!=HCP_IDLE)) { // content-length = until-close //request_complete(hcp, loop); hcp->response_body_complete=1; nxe_istream_set_ready(loop, &hcp->resp_body_out); // signal readiness for EOF return; } else if (hcp->response_body_complete && !hcp->request_complete && data.i<0) { // queue error message until request is complete hcp->queued_error_message=data; return; } nxe_publish(&hcp->events_pub, data); }
static void data_in_do_read(nxe_ostream* os, nxe_istream* is) { nxd_http_client_proto* hcp=(nxd_http_client_proto*)((char*)os-offsetof(nxd_http_client_proto, data_in)); nxe_loop* loop=os->super.loop; if (hcp->state==HCP_WAITING_FOR_RESPONSE) { nxe_unset_timer(loop, NXWEB_TIMER_READ, &hcp->timer_read); nxe_unset_timer(loop, NXWEB_TIMER_100CONTINUE, &hcp->timer_100_continue); nxe_set_timer(loop, NXWEB_TIMER_READ, &hcp->timer_read); nxb_make_room(hcp->nxb, NXWEB_MAX_REQUEST_HEADERS_SIZE); hcp->state=HCP_RECEIVING_HEADERS; } if (hcp->state==HCP_RECEIVING_HEADERS) { int size; nxe_flags_t flags=0; void* ptr=nxb_get_room(hcp->nxb, &size); int bytes_received=ISTREAM_CLASS(is)->read(is, os, ptr, size, &flags); if (bytes_received) { nxb_blank_fast(hcp->nxb, bytes_received); int read_buf_size; char* read_buf=nxb_get_unfinished(hcp->nxb, &read_buf_size); char* end_of_headers; char* start_of_body; if ((end_of_headers=_nxweb_find_end_of_http_headers(read_buf, read_buf_size, &start_of_body))) { nxb_finish_stream(hcp->nxb, 0); memset(&hcp->resp, 0, sizeof(hcp->resp)); hcp->resp.nxb=hcp->nxb; hcp->resp.cdstate.monitor_only=hcp->chunked_do_not_decode; if (_nxweb_parse_http_response(&hcp->resp, read_buf, end_of_headers)) { // bad response nxe_unset_timer(loop, NXWEB_TIMER_READ, &hcp->timer_read); nxe_ostream_unset_ready(os); nxe_publish(&hcp->events_pub, (nxe_data)NXD_HCP_BAD_RESPONSE); return; } if (hcp->receiving_100_continue) { hcp->receiving_100_continue=0; if (hcp->resp.status_code==100) { // back to sending request body nxe_ostream_unset_ready(&hcp->data_in); nxe_unset_timer(loop, NXWEB_TIMER_READ, &hcp->timer_read); nxe_set_timer(loop, NXWEB_TIMER_WRITE, &hcp->timer_write); nxe_istream_set_ready(loop, &hcp->data_out); hcp->state=HCP_SENDING_BODY; return; } else { nxe_publish(&hcp->events_pub, (nxe_data)NXD_HCP_NO_100CONTINUE); } } char* read_buf_end=read_buf+read_buf_size; if (start_of_body<read_buf_end) { hcp->first_body_chunk=start_of_body; hcp->first_body_chunk_end=read_buf_end; nxe_size_t first_body_chunk_size=hcp->first_body_chunk_end-hcp->first_body_chunk; if (hcp->resp.chunked_encoding) { int r=_nxweb_decode_chunked_stream(&hcp->resp.cdstate, hcp->first_body_chunk, &first_body_chunk_size); hcp->first_body_chunk_end=hcp->first_body_chunk+first_body_chunk_size; if (r<0) nxe_publish(&hcp->events_pub, (nxe_data)NXD_HCP_RESPONSE_CHUNKED_ENCODING_ERROR); else if (r>0) hcp->response_body_complete=1; } else if (first_body_chunk_size >= hcp->resp.content_length && hcp->resp.content_length>=0) { hcp->response_body_complete=1; } } else { hcp->first_body_chunk=0; hcp->first_body_chunk_end=0; } nxe_ostream_unset_ready(os); nxe_publish(&hcp->events_pub, (nxe_data)NXD_HCP_RESPONSE_RECEIVED); if (hcp->resp.content_length && !hcp->req->head_method) { // is body expected? hcp->state=HCP_RECEIVING_BODY; nxe_istream_set_ready(loop, &hcp->resp_body_out); if (hcp->resp_body_out.pair) { nxe_ostream_set_ready(loop, os); } } else { // rearm connection request_complete(hcp, loop); } } else { if (read_buf_size>=NXWEB_MAX_REQUEST_HEADERS_SIZE) { // bad response (headers too large) nxe_unset_timer(loop, NXWEB_TIMER_READ, &hcp->timer_read); nxe_ostream_unset_ready(os); nxe_publish(&hcp->events_pub, (nxe_data)NXD_HCP_BAD_RESPONSE); return; } } } } else if (hcp->state==HCP_RECEIVING_BODY) { nxe_ostream* next_os=hcp->resp_body_out.pair; if (next_os) { if (next_os->ready) OSTREAM_CLASS(next_os)->do_read(next_os, &hcp->resp_body_out); if (!next_os->ready) { nxe_ostream_unset_ready(os); nxe_istream_set_ready(loop, &hcp->resp_body_out); // get notified when next_os becomes ready again } } else { nxweb_log_error("no connected device for hcp->resp_body_out"); nxe_ostream_unset_ready(os); } } }