static int parse_text(ssi_buffer* ssib) {
// find all includes & start subrequests
int size;
char* t=nxb_get_unfinished(ssib->nxb, &size);
char* p;
char* p1=t;
char* p2;
char* p3;
int size1=size;
for (;size1>0;) {
p=memchr(p1, '<', size1);
if (!p || (p-p1)+5>size1) break;
if (p[1]=='!' && p[2]=='-' && p[3]=='-' && p[4]=='#') {
p3=p+5;
R: p2=memchr(p3, '>', size-(p3-t));
if (!p2) break;
if (*(p2-1)!='-' || *(p2-2)!='-') {
p3=p2+1;
if ((p3-t)>size) break;
goto R;
}
// ssi directive found!
nxb_finish_partial(ssib->nxb, (p2-t)+1); // text + directive
if (p-t) {
nxweb_composite_stream_append_bytes(ssib->cs, t, p-t);
}
*(p2-2)='\0';
if (parse_directive(ssib, p+5, (p2-p)-5-2)==-1) {
// ssi syntax error
nxweb_composite_stream_append_bytes(ssib->cs, "<!--[ssi syntax error]-->", sizeof("<!--[ssi syntax error]-->")-1);
}
return 1;
}
else {
p1=p+1;
size1=size-(p1-t);
}
}
return 0;
}
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);
}
}
}
