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Add support for bluetooth LE beacon service discovery

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based on remarkable work by @connorh315 on getting this working
This commit is contained in:
F. Duncanh
2025-09-15 14:19:05 -04:00
parent ae52b2bd3a
commit 469f385502
6 changed files with 782 additions and 41 deletions
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23
lib/raop.c
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@@ -188,26 +188,35 @@ conn_request(void *ptr, http_request_t *request, http_response_t **response) {
All requests arriving here have been parsed by llhttp to obtain
method | url | protocol (RTSP/1.0 or HTTP/1.1)
There are three types of connections supplying these requests:
There are four types of connections supplying these requests:
Connections from the AirPlay client:
(1) type RAOP connections with CSeq seqence header, and no X-Apple-Session-ID header
(2) type AIRPLAY connection with an X-Apple-Sequence-ID header and no Cseq header
Connections from localhost:
(3) type HLS internal connections from the local HLS server (gstreamer) at localhost with neither
of these headers, but a Host: localhost:[port] header. method = GET.
(4) a special RAOP connection trigggered by a Bluetooth LE beacon: Protocol RTSP/1.0, method: GET
url /info?txtAirPlay?txtRAOP, and no headers including CSeq
*/
const char *method = http_request_get_method(request);
const char *url = http_request_get_url(request);
const char *protocol = http_request_get_protocol(request);
if (!method || !url) {
if (!method || !url || !protocol) {
return;
}
/* this rejects messages from _airplay._tcp for video streaming protocol unless bool raop->hls_support is true*/
/* ¨idenitfy if request is a response to a BLE beaconn */
const char *cseq = http_request_get_header(request, "CSeq");
const char *protocol = http_request_get_protocol(request);
if (!cseq && !conn->raop->hls_support) {
bool ble = false;
if (!strcmp(protocol,"RTSP/1.0") && !cseq && (strstr(url, "txtAirPlay") || strstr(url, "txtRAOP") )) {
logger_log(conn->raop->logger, LOGGER_INFO, "response to Bluetooth LE beacon advertisement received)");
ble = true;
}
/* this rejects messages from _airplay._tcp for video streaming protocol unless bool raop->hls_support is true*/
if (!cseq && !conn->raop->hls_support && !ble) {
logger_log(conn->raop->logger, LOGGER_INFO, "ignoring AirPlay video streaming request (use option -hls to activate HLS support)");
return;
}
@@ -217,7 +226,7 @@ conn_request(void *ptr, http_request_t *request, http_response_t **response) {
hls_request = (host && !cseq && !client_session_id);
if (conn->connection_type == CONNECTION_TYPE_UNKNOWN) {
if (cseq) {
if (cseq || ble) {
if (httpd_count_connection_type(conn->raop->httpd, CONNECTION_TYPE_RAOP)) {
char ipaddr[40];
utils_ipaddress_to_string(conn->remotelen, conn->remote, conn->zone_id, ipaddr, (int) (sizeof(ipaddr)));
@@ -367,7 +376,7 @@ conn_request(void *ptr, http_request_t *request, http_response_t **response) {
handler = &raop_handler_audiomode;
}
} else if (!strcmp(method, "GET")) {
if (!strcmp(url, "/info")) {
if (strstr(url, "/info")) {
handler = &raop_handler_info;
}
} else if (!strcmp(method, "OPTIONS")) {