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For #307: WebRTC: Support use domain name as CANDIDATE. v4.0.259

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This commit is contained in:
winlin 2022-09-02 09:46:58 +08:00
parent 88ba3d25f8
commit 4a225c5640
6 changed files with 116 additions and 44 deletions
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76
trunk/src/app/srs_app_rtc_server.cpp
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@ -158,12 +158,7 @@ srs_error_t api_server_as_candidates(string api, set<string>& candidate_ips)
return err;
}
SrsHttpUri uri;
if ((err = uri.initialize(api)) != srs_success) {
return srs_error_wrap(err, "parse %s", api.c_str());
}
string hostname = uri.get_host();
string hostname = api;
if (hostname.empty() || hostname == SRS_CONSTS_LOCALHOST_NAME) {
return err;
}
@ -171,15 +166,27 @@ srs_error_t api_server_as_candidates(string api, set<string>& candidate_ips)
return err;
}
// Try to parse the domain name if not IP.
int family = 0;
string ip = srs_dns_resolve(hostname, family);
if (ip.empty() || ip == SRS_CONSTS_LOCALHOST || ip == SRS_CONSTS_LOOPBACK || ip == SRS_CONSTS_LOOPBACK6) {
return err;
// Whether add domain name.
if (!srs_is_ipv4(hostname) && _srs_config->get_keep_api_domain()) {
candidate_ips.insert(hostname);
}
// Try to add the API server ip as candidates.
candidate_ips.insert(ip);
// Try to parse the domain name if not IP.
if (!srs_is_ipv4(hostname) && _srs_config->get_resolve_api_domain()) {
int family = 0;
string ip = srs_dns_resolve(hostname, family);
if (ip.empty() || ip == SRS_CONSTS_LOCALHOST || ip == SRS_CONSTS_LOOPBACK || ip == SRS_CONSTS_LOOPBACK6) {
return err;
}
// Try to add the API server ip as candidates.
candidate_ips.insert(ip);
}
// If hostname is IP, use it.
if (srs_is_ipv4(hostname)) {
candidate_ips.insert(hostname);
}
return err;
}
@ -195,8 +202,8 @@ static set<string> discover_candidates(SrsRtcUserConfig* ruc)
}
// Try to discover from api of request, if api_as_candidates enabled.
if ((err = api_server_as_candidates(ruc->api_, candidate_ips)) != srs_success) {
srs_warn("ignore discovering ip from api %s, err %s", ruc->api_.c_str(), srs_error_summary(err).c_str());
if ((err = api_server_as_candidates(ruc->req_->host, candidate_ips)) != srs_success) {
srs_warn("ignore discovering ip from api %s, err %s", ruc->req_->host.c_str(), srs_error_summary(err).c_str());
srs_freep(err);
}
@ -207,29 +214,32 @@ static set<string> discover_candidates(SrsRtcUserConfig* ruc)
return candidate_ips;
}
// Discover from local network interface addresses.
// All automatically detected IP list.
vector<SrsIPAddress*>& ips = srs_get_local_ips();
if (ips.empty()) {
return candidate_ips;
}
// We try to find the best match candidates, no loopback.
string family = _srs_config->get_rtc_server_ip_family();
for (int i = 0; i < (int)ips.size(); ++i) {
SrsIPAddress* ip = ips[i];
if (ip->is_loopback) {
continue;
}
// Discover from local network interface addresses.
if (_srs_config->get_use_auto_detect_network_ip()) {
// We try to find the best match candidates, no loopback.
string family = _srs_config->get_rtc_server_ip_family();
for (int i = 0; i < (int) ips.size(); ++i) {
SrsIPAddress* ip = ips[i];
if (ip->is_loopback) {
continue;
}
if (family == "ipv4" && !ip->is_ipv4) {
continue;
}
if (family == "ipv6" && ip->is_ipv4) {
continue;
}
if (family == "ipv4" && !ip->is_ipv4) {
continue;
}
if (family == "ipv6" && ip->is_ipv4) {
continue;
}
candidate_ips.insert(ip->ip);
srs_trace("Best matched ip=%s, ifname=%s", ip->ip.c_str(), ip->ifname.c_str());
candidate_ips.insert(ip->ip);
srs_trace("Best matched ip=%s, ifname=%s", ip->ip.c_str(), ip->ifname.c_str());
}
}
if (!candidate_ips.empty()) {
@ -248,7 +258,7 @@ static set<string> discover_candidates(SrsRtcUserConfig* ruc)
return candidate_ips;
}
// We use the first one.
// We use the first one, to make sure there will be at least one CANDIDATE.
if (candidate_ips.empty()) {
SrsIPAddress* ip = ips[0];
candidate_ips.insert(ip->ip);
@ -577,7 +587,7 @@ srs_error_t SrsRtcServer::do_create_session(SrsRtcUserConfig* ruc, SrsSdp& local
set<string> candidates = discover_candidates(ruc);
for (set<string>::iterator it = candidates.begin(); it != candidates.end(); ++it) {
string hostname; int port = listen_port;
srs_parse_hostport(*it, hostname,port);
srs_parse_hostport(*it, hostname, port);
local_sdp.add_candidate(hostname, port, "host");
}