+ // See if the URL ends in “.metacube”.
+ HTTPD::Stream::Framing framing;
+ if (strstr(url, ".metacube") == url + strlen(url) - strlen(".metacube")) {
+ framing = HTTPD::Stream::FRAMING_METACUBE;
+ } else {
+ framing = HTTPD::Stream::FRAMING_RAW;
+ }
+
+ if (strcmp(url, "/metrics") == 0) {
+ string contents = global_metrics.serialize();
+ MHD_Response *response = MHD_create_response_from_buffer(
+ contents.size(), &contents[0], MHD_RESPMEM_MUST_COPY);
+ MHD_add_response_header(response, "Content-type", "text/plain");
+ int ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
+ MHD_destroy_response(response); // Only decreases the refcount; actual free is after the request is done.
+ return ret;
+ }
+ if (endpoints.count(url)) {
+ pair<string, string> contents_and_type = endpoints[url].callback();
+ MHD_Response *response = MHD_create_response_from_buffer(
+ contents_and_type.first.size(), &contents_and_type.first[0], MHD_RESPMEM_MUST_COPY);
+ MHD_add_response_header(response, "Content-type", contents_and_type.second.c_str());
+ if (endpoints[url].cors_policy == ALLOW_ALL_ORIGINS) {
+ MHD_add_response_header(response, "Access-Control-Allow-Origin", "*");
+ }
+ int ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
+ MHD_destroy_response(response); // Only decreases the refcount; actual free is after the request is done.
+ return ret;
+ }
+
+ // Small hack; reject unknown /channels/foo.
+ if (string(url).find("/channels/") == 0) {
+ string contents = "Not found.";
+ MHD_Response *response = MHD_create_response_from_buffer(
+ contents.size(), &contents[0], MHD_RESPMEM_MUST_COPY);
+ MHD_add_response_header(response, "Content-type", "text/plain");
+ int ret = MHD_queue_response(connection, MHD_HTTP_NOT_FOUND, response);
+ MHD_destroy_response(response); // Only decreases the refcount; actual free is after the request is done.
+ return ret;
+ }
+
+ HTTPD::Stream *stream = new HTTPD::Stream(this, framing);
+ stream->add_data(header.data(), header.size(), Stream::DATA_TYPE_HEADER, AV_NOPTS_VALUE, AVRational{ 1, 0 });
+ {
+ unique_lock<mutex> lock(streams_mutex);
+ streams.insert(stream);
+ }
+ ++metric_num_connected_clients;
+ *con_cls = stream;
+
+ // Does not strictly have to be equal to MUX_BUFFER_SIZE.