--- mqtt/src/mqttd_calls.c	2012/05/08 14:27:46	1.2.2.15
+++ mqtt/src/mqttd_calls.c	2012/07/03 09:02:50	1.3
@@ -1,50 +1,284 @@
 #include "global.h"
 #include "mqttd.h"
+#include "utils.h"
 #include "rtlm.h"
 #include "mqttd_calls.h"
 
 
+static inline ait_val_t *
+mkPkt(void * __restrict data, int dlen)
+{
+	ait_val_t *p = NULL;
+
+	if (!(p = io_allocVar())) {
+		ioDEBUG(7, "Error:: in send packet prepare #%d - %s", io_GetErrno(), io_GetError());
+		return NULL;
+	}
+
+	if (data && dlen > 0)
+		AIT_SET_BUF(p, data, dlen);
+
+	return p;
+}
+
+static inline void
+freePkt(ait_val_t ** __restrict p)
+{
+	if (!p)
+		return;
+
+	io_freeVar(p);
+}
+
+static void *
+sendPacket(sched_task_t *task)
+{
+	ait_val_t *p = TASK_ARG(task);
+	register int n, slen;
+	u_char *pos;
+
+	if (!p || AIT_ISEMPTY(p)) {
+		ioDEBUG(9, "Error:: invalid packet or found empty content ...");
+		return NULL;
+	}
+
+	ioDEBUG(7, "Send packet length %d for socket %d\n", AIT_LEN(p), (u_int) TASK_FD(task));
+
+	for (slen = AIT_LEN(p), pos = AIT_GET_BUF(p); slen > 0; slen -= n, pos += n) {
+		n = send(TASK_FD(task), pos, slen, MSG_NOSIGNAL);
+		if (n == -1) {
+			ioSYSERR(0);
+			break;
+		}
+	}
+
+	freePkt(&p);
+	return NULL;
+}
+
+static int
+search4send(struct tagSession * __restrict sess, const char *topic, int datlen, char qos)
+{
+	regex_t re;
+	regmatch_t match;
+	ait_val_t *p = NULL;
+	struct tagSession *s = NULL;
+	struct tagStore *st_, *st = NULL;
+	char szStr[STRSIZ];
+	int ret;
+
+	assert(sess);
+
+	TAILQ_FOREACH(s, &Sessions, sess_node) {
+		SLIST_FOREACH_SAFE(st, &s->sess_subscr, st_node, st_) {
+			/* check for QoS */
+			if (st->st_subscr.sub_ret >= qos) {
+				if ((ret = regcomp(&re, st->st_subscr.sub_topic.msg_base, REG_EXTENDED))) {
+					regerror(ret, &re, szStr, sizeof szStr);
+					regfree(&re);
+					ioDEBUG(3, "Error:: regcomp(%s) %s\n", (char*)
+							st->st_subscr.sub_topic.msg_base, szStr);
+				}
+				if (!regexec(&re, topic, 1, &match, 0)) {
+					/* MATCH */
+					p = mkPkt(sess->sess_buf->msg_base, datlen);
+					schedWrite(root, sendPacket, p, s->sess_sock, NULL, 0);
+				}
+
+				regfree(&re);
+			}
+		}
+	}
+
+	return 0;
+}
+
+/* --------------------------------------------------- */
+
+void *
+sendRetain(sched_task_t *task)
+{
+	mqtt_subscr_t *subs, *s;
+	struct tagSession *sess;
+	int siz;
+
+	ioTRACE(2);
+
+	assert(task);
+
+	sess = TASK_ARG(task);
+	assert(sess);
+
+	if (!sess->sess_buf) {
+		ioDEBUG(9, "WARNING! No allocated buffer!?!\n");
+		return NULL;
+	}
+
+	subs = call.ReadPUB_topic(&cfg, pub, "%", "%", 1);
+	if (!subs)
+		return NULL;
+
+	for (s = subs; s && s->sub_topic.msg_base; s++) {
+		siz = s->sub_value.msg_len;
+		memcpy(sess->sess_buf->msg_base, s->sub_value.msg_base, 
+				MIN(sess->sess_buf->msg_len, s->sub_value.msg_len));
+		ioDEBUG(7, "Sending retain message %d bytes, QoS %hhd topic '%s' data length %d\n", 
+				siz, s->sub_ret, (char*) s->sub_topic.msg_base, s->sub_value.msg_len);
+		if (siz > 0)
+			search4send(sess, s->sub_topic.msg_base, siz, s->sub_ret);
+	}
+
+	mqtt_subFree(&subs);
+	return NULL;
+}
+
 int
+pubWill(struct tagSession * __restrict sess)
+{
+	int datlen;
+
+	ioTRACE(2);
+
+	/* prepare will packet */
+	datlen = mqtt_msgPUBLISH(sess->sess_buf, sess->sess_will.topic, 0xDEAD, 0, 1, 0, 
+			sess->sess_will.msg, sess->sess_will.msg ? strlen(sess->sess_will.msg) : 0);
+	if (datlen == -1)
+		return -1;	/* error */
+
+	return search4send(sess, sess->sess_will.topic, datlen, MQTT_QOS_ACK);
+}
+
+static int
+pubOnce(struct tagSession *sess, char * __restrict psTopic, int datlen)
+{
+	return search4send(sess, psTopic, datlen, MQTT_QOS_ONCE);
+}
+
+static int
+pubAck(struct tagSession *sess, u_short mid, char * __restrict psTopic, int datlen)
+{
+	struct mqtthdr *hdr = (struct mqtthdr*) sess->sess_buf->msg_base;
+
+	/* write topic to database */
+	call.DeletePUB_topic(&cfg, pub, sess->sess_cid, mid, psTopic, sess->sess_user, 
+			sess->sess_addr, hdr->mqtt_msg.retain);
+	call.WritePUB_topic(&cfg, pub, sess->sess_cid, mid, psTopic, 
+			sess->sess_buf->msg_base, datlen, sess->sess_user, sess->sess_addr, 
+			hdr->mqtt_msg.qos, hdr->mqtt_msg.retain);
+
+	search4send(sess, psTopic, datlen, MQTT_QOS_ACK);
+
+	/* delete not retain message */
+	call.DeletePUB_topic(&cfg, pub, sess->sess_cid, mid, psTopic, sess->sess_user, 
+			sess->sess_addr, 0);
+	return 0;
+}
+
+static int
+pubExactly(struct tagSession *sess, u_short mid, char * __restrict psTopic, int datlen)
+{
+	struct mqtthdr *hdr = (struct mqtthdr*) sess->sess_buf->msg_base;
+
+	/* write topic to database */
+	call.DeletePUB_topic(&cfg, pub, sess->sess_cid, mid, psTopic, sess->sess_user, 
+			sess->sess_addr, hdr->mqtt_msg.retain);
+	call.WritePUB_topic(&cfg, pub, sess->sess_cid, mid, psTopic, 
+			sess->sess_buf->msg_base, datlen, sess->sess_user, sess->sess_addr, 
+			hdr->mqtt_msg.qos, hdr->mqtt_msg.retain);
+
+	return search4send(sess, psTopic, datlen, MQTT_QOS_EXACTLY);
+}
+
+
+int
 cmdPUBLISH(void *srv, int len, void *arg)
 {
 	struct mqtthdr *hdr;
 	struct tagSession *sess = (struct tagSession*) arg;
+	char szTopic[STRSIZ] = { 0 };
+	int siz = 0;
+	u_short mid = 0;
+	ait_val_t *p = NULL;
 
 	ioTRACE(2);
 
 	if (!sess)
 		return -1;
 
+	ioDEBUG(5, "Exec PUBLISH session");
+	siz = mqtt_readPUBLISH(sess->sess_buf, szTopic, sizeof szTopic, &mid, NULL);
+	if (siz == -1) {
+		ioDEBUG(5, "Error:: in readPUBLISH #%d - %s", mqtt_GetErrno(), mqtt_GetError());
+		return 0;
+	}
+
 	hdr = (struct mqtthdr*) sess->sess_buf->msg_base;
 	switch (hdr->mqtt_msg.qos) {
-		case MQTT_QOS_ONCE:
-			break;
 		case MQTT_QOS_ACK:
+			if (pubAck(sess, mid, szTopic, mqtt_pktLen(hdr)))
+				return 0;
+			siz = mqtt_msgPUBACK(sess->sess_buf, mid);
+			if (siz == -1) {
+				ioDEBUG(5, "Error:: in msgPUBACK #%d - %s", 
+						mqtt_GetErrno(), mqtt_GetError());
+				return 0;
+			}
 			break;
 		case MQTT_QOS_EXACTLY:
+			if (pubExactly(sess, mid, szTopic, mqtt_pktLen(hdr)))
+				return 0;
+			siz = mqtt_msgPUBREC(sess->sess_buf, mid);
+			if (siz == -1) {
+				ioDEBUG(5, "Error:: in msgPUBREC #%d - %s", 
+						mqtt_GetErrno(), mqtt_GetError());
+				return 0;
+			}
 			break;
+		case MQTT_QOS_ONCE:
+			pubOnce(sess, szTopic, mqtt_pktLen(hdr));
 		default:
-			ioDEBUG(1, "Error:: Unknown QoS %d - rejected publishing request", 
-					hdr->mqtt_msg.qos);
 			return 0;
 	}
 
+	p = mkPkt(sess->sess_buf->msg_base, siz);
+	memset(sess->sess_buf->msg_base, 0, sess->sess_buf->msg_len);
+	schedWrite(root, sendPacket, p, sess->sess_sock, NULL, 0);
 	return 0;
 }
 
 int
 cmdPUBREL(void *srv, int len, void *arg)
 {
-	struct mqtthdr *hdr;
 	struct tagSession *sess = (struct tagSession*) arg;
+	int siz = 0;
+	u_short mid = 0;
+	ait_val_t *p = NULL;
 
 	ioTRACE(2);
 
 	if (!sess)
 		return -1;
 
-	hdr = (struct mqtthdr*) sess->sess_buf->msg_base;
+	ioDEBUG(5, "Exec PUBREL session");
+	mid = mqtt_readPUBREL(sess->sess_buf);
+	if (mid == (u_short) -1) {
+		ioDEBUG(5, "Error:: in readPUBREL #%d - %s", mqtt_GetErrno(), mqtt_GetError());
+		return 0;
+	}
 
+	/* delete not retain message */
+	call.DeletePUB_topic(&cfg, pub, sess->sess_cid, mid, "%", sess->sess_user, 
+			sess->sess_addr, 0);
+
+	siz = mqtt_msgPUBCOMP(sess->sess_buf, mid);
+	if (siz == -1) {
+		ioDEBUG(5, "Error:: in msgPUBCOMP #%d - %s", mqtt_GetErrno(), mqtt_GetError());
+		return 0;
+	}
+
+	p = mkPkt(sess->sess_buf->msg_base, siz);
+	memset(sess->sess_buf->msg_base, 0, sess->sess_buf->msg_len);
+	schedWrite(root, sendPacket, p, sess->sess_sock, NULL, 0);
 	return 0;
 }
 
@@ -57,6 +291,9 @@ cmdSUBSCRIBE(void *srv, int len, void *arg)
 	u_short mid = 0;
 	register int i;
 	struct tagStore *store;
+	char buf[BUFSIZ];
+	void *ptr;
+	ait_val_t *p = NULL;
 
 	ioTRACE(2);
 
@@ -72,23 +309,45 @@ cmdSUBSCRIBE(void *srv, int len, void *arg)
 
 	/* add to db */
 	for (i = 0; i < siz; i++) {
-		if (call.WritePUB_subscribe(&cfg, pub, sess->sess_cid, mid, subs[i].sub_topic.msg_base, 
-				sess->sess_user, sess->sess_addr, subs[i].sub_ret) > 0) {
-			store = malloc(sizeof(struct tagStore));
-			if (!store) {
+		store = io_malloc(sizeof(struct tagStore));
+		if (!store) {
+			ioSYSERR(0);
+			continue;
+		} else {
+			store->st_msgid = mid;
+			mqtt_subCopy(&store->st_subscr, &subs[i]);
+			subs[i].sub_ret = MQTT_QOS_DENY;
+		}
+
+		/* add to cache */
+		SLIST_INSERT_HEAD(&sess->sess_subscr, store, st_node);
+
+		/* convert topic to regexp */
+		if (mqtt_expandTopic(subs[i].sub_topic.msg_base, buf, sizeof buf, 1, 1) == -1) {
+			ioDEBUG(5, "Error:: in regexp #%d - %s", mqtt_GetErrno(), mqtt_GetError());
+		} else {
+			ptr = realloc(store->st_subscr.sub_topic.msg_base, strlen(buf) + 1);
+			if (!ptr) {
 				ioSYSERR(0);
-				goto end;
+				continue;
 			} else {
-				store->st_msgid = mid;
-				mqtt_subCopy(&store->st_subscr, &subs[i]);
+				store->st_subscr.sub_topic.msg_base = ptr;
+				store->st_subscr.sub_topic.msg_len = strlen(buf) + 1;
+				memcpy(store->st_subscr.sub_topic.msg_base, buf, 
+						store->st_subscr.sub_topic.msg_len);
 			}
 
-			/* add to cache */
-			SLIST_INSERT_HEAD(&sess->sess_subscr, store, st_node);
-
+			/* store to db */
+			call.WritePUB_subscribe(&cfg, pub, sess->sess_cid, mid, buf, 
+					sess->sess_user, sess->sess_addr, store->st_subscr.sub_ret);
+			/* subscribe pass */
 			subs[i].sub_ret = MQTT_QOS_PASS;
-		} else
-			subs[i].sub_ret = MQTT_QOS_DENY;
+
+			call.LOG(logg, "Added [%s] SUBSCRIBE '%s'(%d) QoS=%d from %s\n", sess->sess_cid, 
+					store->st_subscr.sub_topic.msg_base, 
+					store->st_subscr.sub_topic.msg_len, 
+					store->st_subscr.sub_ret, sess->sess_addr);
+		}
 	}
 
 	/* send acknowledge */
@@ -96,13 +355,12 @@ cmdSUBSCRIBE(void *srv, int len, void *arg)
 	if (siz == -1) {
 		ioDEBUG(5, "Error:: in msgSUBACK #%d - %s", mqtt_GetErrno(), mqtt_GetError());
 		goto end;
-	}
-	if ((siz = send(sess->sess_sock, sess->sess_buf->msg_base, siz, MSG_NOSIGNAL)) == -1)
-		ioSYSERR(0);
-	else {
-		ioDEBUG(5, "Sended %d bytes.", siz);
+	} else {
+		p = mkPkt(sess->sess_buf->msg_base, siz);
 		memset(sess->sess_buf->msg_base, 0, sess->sess_buf->msg_len);
 	}
+
+	schedWrite(root, sendPacket, p, sess->sess_sock, NULL, 0);
 end:
 	mqtt_subFree(&subs);
 	return 0;
@@ -117,6 +375,7 @@ cmdUNSUBSCRIBE(void *srv, int len, void *arg)
 	u_short mid = 0;
 	register int i;
 	struct tagStore *store, *tmp;
+	ait_val_t *p = NULL;
 
 	ioTRACE(2);
 
@@ -143,7 +402,7 @@ cmdUNSUBSCRIBE(void *srv, int len, void *arg)
 					free(store->st_subscr.sub_topic.msg_base);
 				if (store->st_subscr.sub_value.msg_base)
 					free(store->st_subscr.sub_value.msg_base);
-				free(store);
+				io_free(store);
 			}
 		}
 
@@ -156,13 +415,12 @@ cmdUNSUBSCRIBE(void *srv, int len, void *arg)
 	if (siz == -1) {
 		ioDEBUG(5, "Error:: in msgUNSUBACK #%d - %s", mqtt_GetErrno(), mqtt_GetError());
 		goto end;
-	}
-	if ((siz = send(sess->sess_sock, sess->sess_buf->msg_base, siz, MSG_NOSIGNAL)) == -1)
-		ioSYSERR(0);
-	else {
-		ioDEBUG(5, "Sended %d bytes.", siz);
+	} else {
+		p = mkPkt(sess->sess_buf->msg_base, siz);
 		memset(sess->sess_buf->msg_base, 0, sess->sess_buf->msg_len);
 	}
+
+	schedWrite(root, sendPacket, p, sess->sess_sock, NULL, 0);
 end:
 	mqtt_subFree(&subs);
 	return 0;
@@ -173,6 +431,7 @@ cmdPINGREQ(void *srv, int len, void *arg)
 {
 	struct tagSession *sess = (struct tagSession*) arg;
 	int siz = 0;
+	ait_val_t *p = NULL;
 
 	ioTRACE(2);
 
@@ -184,15 +443,12 @@ cmdPINGREQ(void *srv, int len, void *arg)
 	if (siz == -1) {
 		ioDEBUG(5, "Error:: in msgPINGRESP #%d - %s", mqtt_GetErrno(), mqtt_GetError());
 		return 0;
-	}
-	if ((siz = send(sess->sess_sock, sess->sess_buf->msg_base, siz, MSG_NOSIGNAL)) == -1) {
-		ioSYSERR(0);
-		return 0;
 	} else {
-		ioDEBUG(5, "Sended %d bytes.", siz);
+		p = mkPkt(sess->sess_buf->msg_base, siz);
 		memset(sess->sess_buf->msg_base, 0, sess->sess_buf->msg_len);
 	}
 
+	schedWrite(root, sendPacket, p, sess->sess_sock, NULL, 0);
 	return 0;
 }
 
@@ -210,9 +466,17 @@ cmdCONNECT(void *srv, int len, void *arg)
 	ioDEBUG(5, "Exec CONNECT session");
 	TAILQ_REMOVE(&Sessions, sess, sess_node);
 
-	if (call.FiniSessPUB)
-		call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%");
+	schedCancelby(root, taskTIMER, CRITERIA_CALL, sendRetain, NULL);
 
+	if (sess->sess_clean) {
+		if (call.FiniSessPUB)
+			call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%");
+		if (call.DeletePUB_subscribe)
+			call.DeletePUB_subscribe(&cfg, pub, sess->sess_cid, "%", sess->sess_user, "%");
+		if (call.WipePUB_topic)
+			call.WipePUB_topic(&cfg, pub, sess->sess_cid, sess->sess_user, -1);
+	}
+
 	while ((store = SLIST_FIRST(&sess->sess_subscr))) {
 		SLIST_REMOVE_HEAD(&sess->sess_subscr, st_node);
 
@@ -221,8 +485,11 @@ cmdCONNECT(void *srv, int len, void *arg)
 		if (store->st_subscr.sub_value.msg_base)
 			free(store->st_subscr.sub_value.msg_base);
 
-		free(store);
+		io_free(store);
 	}
+
+	if (sess->sess_will.flag)
+		pubWill(sess);
 
 	if (sess->sess_will.msg)
 		free(sess->sess_will.msg);