static int on_frame_recv_callback(nghttp2_session *session,
const nghttp2_frame *frame, void *user_data)
{
http2_session_data *session_data = (http2_session_data*)user_data;
http2_stream_data *stream_data;
size_t i;
const char PATH[] = ":path";
switch(frame->hd.type) {
case NGHTTP2_HEADERS:
if(frame->headers.cat != NGHTTP2_HCAT_REQUEST) {
break;
}
stream_data = create_http2_stream_data(session_data, frame->hd.stream_id);
nghttp2_session_set_stream_user_data(session, frame->hd.stream_id,
stream_data);
for(i = 0; i < frame->headers.nvlen; ++i) {
nghttp2_nv *nv = &frame->headers.nva[i];
if(nv->namelen == sizeof(PATH) - 1 &&
memcmp(PATH, nv->name, nv->namelen) == 0) {
size_t j;
for(j = 0; j < nv->valuelen && nv->value[j] != '?'; ++j);
stream_data->request_path = percent_decode(nv->value, j);
break;
}
}
break;
default:
break;
}
return 0;
}
static int on_begin_headers_callback(nghttp2_session *session,
const nghttp2_frame *frame,
void *user_data) {
http2_session_data *session_data = (http2_session_data *)user_data;
http2_stream_data *stream_data;
if (frame->hd.type != NGHTTP2_HEADERS ||
frame->headers.cat != NGHTTP2_HCAT_REQUEST) {
return 0;
}
stream_data = create_http2_stream_data(session_data, frame->hd.stream_id);
nghttp2_session_set_stream_user_data(session, frame->hd.stream_id,
stream_data);
return 0;
}
/* Get resource denoted by the |uri|. The debug and error messages are
printed in stderr, while the response body is printed in stdout. */
static void run(const char *uri)
{
struct http_parser_url u;
char *host;
uint16_t port;
int rv;
SSL_CTX *ssl_ctx;
struct event_base *evbase;
http2_session_data *session_data;
/* Parse the |uri| and stores its components in |u| */
rv = http_parser_parse_url(uri, strlen(uri), 0, &u);
if(rv != 0) {
errx(1, "Could not parse URI %s", uri);
}
host = strndup(&uri[u.field_data[UF_HOST].off], u.field_data[UF_HOST].len);
if(!(u.field_set & (1 << UF_PORT))) {
port = 443;
} else {
port = u.port;
}
ssl_ctx = create_ssl_ctx();
evbase = event_base_new();
session_data = create_http2_session_data(evbase);
session_data->stream_data = create_http2_stream_data(uri, &u);
initiate_connection(evbase, ssl_ctx, host, port, session_data);
free(host);
host = NULL;
event_base_loop(evbase, 0);
event_base_free(evbase);
SSL_CTX_free(ssl_ctx);
}
