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- #include <memory>
- #include "sys/sock.h"
- #include "sip-uac.h"
- #include "sip-message.h"
- #include "sip-transport.h"
- #include "port/ip-route.h"
- #include "http-parser.h"
- #include "uri-parse.h"
-
- static struct sip_dialog_t* s_dialog;
- static struct sip_subscribe_t* s_subscribe;
-
- static struct sip_message_t* req2sip(const char* req)
- {
- struct sip_message_t* msg;
- msg = sip_message_create(SIP_MESSAGE_REQUEST);
-
- size_t n = strlen(req);
- http_parser_t* parser = http_parser_create(HTTP_PARSER_REQUEST, NULL, NULL);
- assert(0 == http_parser_input(parser, req, &n) && 0 == n);
- assert(0 == sip_message_load(msg, parser));
- http_parser_destroy(parser);
- return msg;
- }
-
- static struct sip_message_t* reply2sip(const char* reply)
- {
- struct sip_message_t* msg;
- msg = sip_message_create(SIP_MESSAGE_REPLY);
-
- size_t n = strlen(reply);
- http_parser_t* parser = http_parser_create(HTTP_PARSER_RESPONSE, NULL, NULL);
- assert(0 == http_parser_input(parser, reply, &n) && 0 == n);
- assert(0 == sip_message_load(msg, parser));
- http_parser_destroy(parser);
- return msg;
- }
-
- static int sip_uac_transport_via(void* transport, const char* destination, char protocol[16], char local[128], char dns[128])
- {
- int r;
- char ip[65];
- u_short port;
- struct uri_t* uri;
- struct sockaddr_storage ss;
- socklen_t len;
-
- len = sizeof(ss);
- memset(&ss, 0, sizeof(ss));
- strcpy(protocol, "UDP");
-
- uri = uri_parse(destination, strlen(destination));
- if (!uri)
- return -1; // invalid uri
-
- // TODO: sips port
- r = socket_addr_from(&ss, &len, "127.0.0.1" /*uri->host*/, uri->port ? uri->port : SIP_PORT);
- if (0 == r)
- {
- socket_addr_to((struct sockaddr*)&ss, len, ip, &port);
- r = ip_route_get(ip, local);
- if (0 == r)
- {
- len = sizeof(ss);
- if(0 == socket_addr_from(&ss, &len, local, 0))
- socket_addr_name((struct sockaddr*)&ss, len, dns, 128);
-
- if (SIP_PORT != port)
- snprintf(local + strlen(local), 128 - strlen(local), ":%hu", port);
-
- if (NULL == strchr(dns, '.'))
- snprintf(dns, 128, "%s", local); // don't have valid dns
- }
- }
-
- uri_free(uri);
- return r;
- }
-
- static int sip_uac_transport_send(void* transport, const void* data, size_t bytes)
- {
- //char p1[1024];
- //char p2[1024];
- ((char*)data)[bytes] = 0;
- printf("%s\n", (const char*)data);
- struct sip_message_t* msg = req2sip((const char*)data);
- struct sip_message_t* req = (struct sip_message_t*)transport;
- assert(msg->mode == req->mode && (cstreq(&msg->u.c.method, &req->u.c.method) || 0 == cstrcasecmp(&msg->u.c.method, "ACK")));
- // assert(sip_contact_write(&msg->to, p1, p1 + sizeof(p1)) > 0 && sip_contact_write(&req->to, p2, p2 + sizeof(p2)) > 0 && 0 == strcmp(p1, p2));
- // assert(sip_contact_write(&msg->from, p1, p1 + sizeof(p1)) > 0 && sip_contact_write(&req->from, p2, p2 + sizeof(p2)) > 0 && 0 == strcmp(p1, p2));
- return 0;
- }
- static int sip_uac_message_oninvite(void* param, const struct sip_message_t* reply, struct sip_uac_transaction_t* t, struct sip_dialog_t* dialog, int code, void** session)
- {
- s_dialog = dialog;
- if (200 <= code && code < 300)
- {
- *session = NULL;
- sip_uac_ack(t, NULL, 0);
- }
- return 0;
- }
-
- static int sip_uac_message_onbye(void* param, const struct sip_message_t* reply, struct sip_uac_transaction_t* t, int code)
- {
- return 0;
- }
-
- static int sip_uac_message_onsubscribe(void* param, const struct sip_message_t* reply, struct sip_uac_transaction_t* t, struct sip_subscribe_t* subscribe, int code, void** session)
- {
- s_subscribe = subscribe;
- if (200 <= code && code < 300)
- {
- *session = NULL;
- }
- return 0;
- }
-
- static int sip_uac_message_onregister(void* param, const struct sip_message_t* reply, struct sip_uac_transaction_t* t, int code)
- {
- return 0;
- }
-
- static void sip_uac_message_register(struct sip_agent_t* sip, struct sip_transport_t* udp)
- {
- // F1 REGISTER Bob -> Registrar (p213)
- const char* f1 = "REGISTER sip:registrar.biloxi.com SIP/2.0\r\n"
- "Via: SIP/2.0/UDP bobspc.biloxi.com:5060;branch=z9hG4bKnashds7\r\n"
- "Max-Forwards: 70\r\n"
- "To: Bob <sip:bob@biloxi.com>\r\n"
- "From: Bob <sip:bob@biloxi.com>;tag=456248\r\n"
- "Call-ID: 843817637684230@998sdasdh09\r\n"
- "CSeq: 1826 REGISTER\r\n"
- "Contact: <sip:bob@192.0.2.4>\r\n"
- "Expires: 7200\r\n"
- "Content-Length: 0\r\n\r\n";
-
- // F2 200 OK Registrar -> Bob (p214)
- const char* f2 = "SIP/2.0 200 OK\r\n"
- "Via: SIP/2.0/UDP bobspc.biloxi.com:5060;branch=z9hG4bKnashds7;received=192.0.2.4\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=2493k59kd\r\n"
- "From: Bob <sip:bob@biloxi.com>;tag=456248\r\n"
- "Call-ID: 843817637684230@998sdasdh09\r\n"
- "CSeq: 1826 REGISTER\r\n"
- "Contact: <sip:bob@192.0.2.4>\r\n"
- "Expires: 7200\r\n"
- "Content-Length: 0\r\n\r\n";
-
- struct sip_message_t* req = req2sip(f1);
- struct sip_message_t* reply = reply2sip(f2);
-
- std::shared_ptr<sip_uac_transaction_t> t(sip_uac_register(sip, "Bob <sip:bob@biloxi.com>", NULL, 7200, sip_uac_message_onregister, NULL), sip_uac_transaction_release);
- //t = sip_uac_register(sip, "Bob <sip:bob@biloxi.com>", "sip:registrar.biloxi.com", 7200, sip_uac_message_onregister, NULL);
- sip_uac_add_header(t.get(), "Via", "SIP/2.0/UDP bobspc.biloxi.com:5060;branch=z9hG4bKnashds7");
- sip_uac_add_header(t.get(), "CSeq", "1826 REGISTER");// modify cseq.id
- assert(0 == sip_uac_send(t.get(), NULL, 0, udp, req));
- assert(0 == sip_agent_input(sip, reply, NULL));
-
- sip_message_destroy(req);
- sip_message_destroy(reply);
- }
-
- static void sip_uac_message_invite(struct sip_agent_t* sip, struct sip_transport_t* udp)
- {
- // F1 INVITE Alice -> atlanta.com proxy (p214)
- const char* f1 = "INVITE sip:bob@biloxi.com SIP/2.0\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds8\r\n"
- "Max-Forwards: 70\r\n"
- "To: Bob <sip:bob@biloxi.com>\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314159 INVITE\r\n"
- "Contact: <sip:alice@pc33.atlanta.com>\r\n"
- "Content-Type: application/sdp\r\n"
- "Content-Length: 0\r\n\r\n";
-
- // F2 100 Trying atlanta.com proxy -> Alice (p215)
- const char* f2 = "SIP/2.0 100 Trying\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds8;received=192.0.2.1\r\n"
- "To: Bob <sip:bob@biloxi.com>\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314159 INVITE\r\n"
- "Content-Length: 0\r\n\r\n";
-
- // F8 180 Ringing atlanta.com proxy -> Alice (217)
- const char* f8 = "SIP/2.0 180 Ringing\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds8;received=192.0.2.1\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "Contact: <sip:bob@192.0.2.4>\r\n"
- "CSeq: 314159 INVITE\r\n"
- "Content-Length: 0\r\n\r\n";
-
- // F11 200 OK atlanta.com proxy -> Alice (p218)
- const char* f11 = "SIP/2.0 200 OK\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds8;received=192.0.2.1\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314159 INVITE\r\n"
- "Contact: <sip:bob@192.0.2.4>\r\n"
- "Content-Type: application/sdp\r\n"
- "Content-Length: 0\r\n\r\n";
-
- // F12 ACK Alice -> Bob (p218)
- const char* f12 = "ACK sip:bob@192.0.2.4 SIP/2.0\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds9\r\n"
- "Max-Forwards: 70\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314159 ACK\r\n"
- "Content-Length: 0\r\n\r\n";
-
- const char* f13 = "SIP/2.0 603 Decline\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds8;received=192.0.2.1\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314159 INVITE\r\n"
- "Content-Type: application/sdp\r\n"
- "Content-Length: 0\r\n\r\n";
-
- struct sip_message_t* req = req2sip(f1);
- struct sip_message_t* reply100 = reply2sip(f2);
- struct sip_message_t* reply180 = reply2sip(f8);
- struct sip_message_t* reply200 = reply2sip(f11);
- struct sip_message_t* reply603 = reply2sip(f13);
- struct sip_message_t* ack = req2sip(f12);
-
- std::shared_ptr<sip_uac_transaction_t> t(sip_uac_invite(sip, "Alice <sip:alice@atlanta.com>;tag=1928301774", "Bob <sip:bob@biloxi.com>", sip_uac_message_oninvite, NULL), sip_uac_transaction_release);
- sip_uac_add_header(t.get(), "Via", "SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds8");
- sip_uac_add_header(t.get(), "Call-ID", "a84b4c76e66710");// modify call-id
- sip_uac_add_header(t.get(), "CSeq", "314159 INVITE");// modify cseq.id
- sip_uac_add_header(t.get(), "Content-Type", "application/sdp");
- sip_uac_add_header_int(t.get(), "Content-Length", 3);
- sip_uac_send(t.get(), "sdp", 3, udp, req);
-
- sip_agent_input(sip, reply100, NULL);
- sip_agent_input(sip, reply180, NULL);
- sip_agent_input(sip, reply100, NULL);
- sip_agent_input(sip, reply180, NULL);
- // sip_agent_input(sip, reply603);
- sip_agent_input(sip, reply200, NULL);
- sip_agent_input(sip, reply180, NULL);
- sip_agent_input(sip, reply100, NULL);
- sip_agent_input(sip, reply200, NULL);
-
- sip_message_destroy(req);
- sip_message_destroy(reply100);
- sip_message_destroy(reply180);
- sip_message_destroy(reply200);
- sip_message_destroy(ack);
- }
-
- static void sip_uac_message_bye(struct sip_agent_t* sip, struct sip_transport_t* udp)
- {
- // F13 BYE Alice -> Bob (p218)
- const char* f13 = "BYE sip:bob@192.0.2.4 SIP/2.0\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds9\r\n"
- "Max-Forwards: 70\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314160 BYE\r\n"
- "Content-Length: 0\r\n\r\n";
-
- // F14 200 OK Alice -> Bob (p219)
- const char* f14 = "SIP/2.0 200 OK\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds9\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314160 BYE\r\n"
- "Content-Length: 0\r\n\r\n";
-
- struct sip_message_t* req = req2sip(f13);
- struct sip_message_t* reply = reply2sip(f14);
-
- std::shared_ptr<sip_uac_transaction_t> t(sip_uac_bye(sip, s_dialog, sip_uac_message_onbye, NULL), sip_uac_transaction_release);
- sip_uac_add_header(t.get(), "Via", "SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds9");
- sip_uac_add_header_int(t.get(), "Content-Length", 0);
- sip_uac_send(t.get(), NULL, 0, udp, req);
- sip_agent_input(sip, reply, NULL);
-
- sip_message_destroy(req);
- sip_message_destroy(reply);
- }
-
- static void sip_uac_message_subscribe(struct sip_agent_t* sip, struct sip_transport_t* udp)
- {
- const char* f1 = "SUBSCRIBE sip:bob@biloxi.com SIP/2.0\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds10\r\n"
- "Max-Forwards: 70\r\n"
- "To: Bob <sip:bob@biloxi.com>\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314159 SUBSCRIBE\r\n"
- "Contact: <sip:alice@pc33.atlanta.com>\r\n"
- "Event: presence\r\n"
- "Expires: 60\r\n"
- "Content-Type: application/sdp\r\n"
- "Content-Length: 0\r\n\r\n";
-
- const char* f2 = "SIP/2.0 200 OK\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds10;received=192.0.2.1\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314159 SUBSCRIBE\r\n"
- "Contact: <sip:bob@192.0.2.4>\r\n"
- "Event: presence\r\n"
- "Expires: 60\r\n"
- "Content-Type: application/sdp\r\n"
- "Content-Length: 0\r\n\r\n";
-
- // re-subscribe
- const char* f3 = "SUBSCRIBE sip:bob@biloxi.com SIP/2.0\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds11\r\n"
- "Max-Forwards: 70\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314160 SUBSCRIBE\r\n"
- "Contact: <sip:alice@pc33.atlanta.com>\r\n"
- "Event: presence\r\n"
- "Expires: 60\r\n"
- "Content-Type: application/sdp\r\n"
- "Content-Length: 0\r\n\r\n";
-
- const char* f4 = "SIP/2.0 200 OK\r\n"
- "Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds11;received=192.0.2.1\r\n"
- "To: Bob <sip:bob@biloxi.com>;tag=a6c85cf\r\n"
- "From: Alice <sip:alice@atlanta.com>;tag=1928301774\r\n"
- "Call-ID: a84b4c76e66710\r\n"
- "CSeq: 314160 SUBSCRIBE\r\n"
- "Contact: <sip:bob@192.0.2.4>\r\n"
- "Event: presence\r\n"
- "Expires: 60\r\n"
- "Content-Type: application/sdp\r\n"
- "Content-Length: 0\r\n\r\n";
-
- struct sip_message_t* req = req2sip(f1);
- struct sip_message_t* reply200 = reply2sip(f2);
-
- std::shared_ptr<sip_uac_transaction_t> t(sip_uac_subscribe(sip, "Alice <sip:alice@atlanta.com>;tag=1928301774", "Bob <sip:bob@biloxi.com>", "presence", 60, sip_uac_message_onsubscribe, NULL), sip_uac_transaction_release);
- sip_uac_add_header(t.get(), "Via", "SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds10");
- sip_uac_add_header(t.get(), "Call-ID", "a84b4c76e66710");// modify call-id
- sip_uac_add_header(t.get(), "CSeq", "314159 SUBSCRIBE");// modify cseq.id
- sip_uac_add_header(t.get(), "Content-Type", "application/sdp");
- sip_uac_add_header_int(t.get(), "Content-Length", 0);
- sip_uac_send(t.get(), "", 0, udp, req);
- sip_agent_input(sip, reply200, NULL);
- sip_agent_input(sip, reply200, NULL);
- sip_message_destroy(req);
- sip_message_destroy(reply200);
-
- struct sip_message_t* req2 = req2sip(f3);
- struct sip_message_t* reply2 = reply2sip(f4);
- std::shared_ptr<sip_uac_transaction_t> t2(sip_uac_resubscribe(sip, s_subscribe, 60, sip_uac_message_onsubscribe, NULL), sip_uac_transaction_release);
- sip_uac_add_header(t2.get(), "Via", "SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds11");
- // sip_uac_add_header(t2.get(), "Call-ID", "a84b4c76e66710");// modify call-id
- // sip_uac_add_header(t2.get(), "CSeq", "314160 SUBSCRIBE");// modify cseq.id
- sip_uac_add_header(t2.get(), "Content-Type", "application/sdp");
- sip_uac_add_header_int(t2.get(), "Content-Length", 0);
- sip_uac_send(t2.get(), "", 0, udp, req);
- sip_agent_input(sip, reply2, NULL);
- sip_agent_input(sip, reply2, NULL);
- sip_message_destroy(req2);
- sip_message_destroy(reply2);
- }
-
- // 24 Examples (p213)
- void sip_uac_message_test(void)
- {
- struct sip_transport_t udp = {
- sip_uac_transport_via,
- sip_uac_transport_send,
- };
- struct sip_uas_handler_t handler;
- memset(&handler, 0, sizeof(handler));
- struct sip_agent_t* sip = sip_agent_create(&handler);
- sip_uac_message_register(sip, &udp);
- sip_uac_message_invite(sip, &udp);
- sip_uac_message_bye(sip, &udp);
-
- sip_uac_message_subscribe(sip, &udp);
- sip_agent_destroy(sip);
- }
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