add channel topic tracking

3 files changed, 97 insertions, 0 deletions

diff --git a/bouncer/core.h b/bouncer/core.h
index 7236ff7..1d6b9db 100644
--- a/bouncer/core.h
+++ b/bouncer/core.h
@@ -102,6 +102,8 @@ public:
 	void handleNick(const UserRef &user, const char *newNick);
 	void handleMode(const UserRef &user, const char *str);
 	void handlePrivmsg(const UserRef &user, const char *str);
+	void handleTopic(const UserRef &user, const char *message);
+	void handleTopicInfo(const char *user, int timestamp);
 
 	char getEffectivePrefixChar(const char *nick) const;
 
@@ -173,6 +175,7 @@ struct Packet {
 		B2C_CHANNEL_USER_REMOVE = 0x121,
 		B2C_CHANNEL_USER_RENAME = 0x122,
 		B2C_CHANNEL_USER_MODES = 0x123,
+		B2C_CHANNEL_TOPIC = 0x124,
 
 		C2B_OOB_LOGIN = 0x8001,
 
diff --git a/bouncer/ircserver.cpp b/bouncer/ircserver.cpp
index ecf5c64..3b09d49 100644
--- a/bouncer/ircserver.cpp
+++ b/bouncer/ircserver.cpp
@@ -233,6 +233,13 @@ void IRCServer::lineReceivedEvent(char *line, int size) {
 			return;
 		}
 
+	} else if (strcmp(cmdBuf, "TOPIC") == 0) {
+		Channel *c = findChannel(targetBuf, false);
+		if (c) {
+			c->handleTopic(user, paramsAfterFirst);
+			return;
+		}
+
 	} else if (strcmp(cmdBuf, "PRIVMSG") == 0) {
 		Channel *c = findChannel(targetBuf, true);
 		if (c) {
@@ -251,6 +258,56 @@ void IRCServer::lineReceivedEvent(char *line, int size) {
 		processISupport(paramsAfterFirst);
 		return;
 
+	} else if (strcmp(cmdBuf, "331") == 0) {
+		// RPL_NOTOPIC:
+		// Params: Channel name, *maybe* text we can ignore
+
+		char *space = strchr(paramsAfterFirst, ' ');
+		if (space)
+			*space = 0;
+
+		Channel *c = findChannel(paramsAfterFirst, false);
+		if (c) {
+			c->handleTopic(UserRef(), "");
+			return;
+		}
+
+	} else if (strcmp(cmdBuf, "332") == 0) {
+		// RPL_TOPIC:
+		// Params: Channel name, text
+
+		char *space = strchr(paramsAfterFirst, ' ');
+		if (space) {
+			*space = 0;
+
+			char *topic = space + 1;
+			if (*topic == ':')
+				++topic;
+
+			Channel *c = findChannel(paramsAfterFirst, false);
+			if (c) {
+				c->handleTopic(UserRef(), topic);
+				return;
+			}
+		}
+
+	} else if (strcmp(cmdBuf, "333") == 0) {
+		// Topic set
+
+		char *strtok_var;
+		char *chanName = strtok_r(paramsAfterFirst, " ", &strtok_var);
+		char *setBy = strtok_r(NULL, " ", &strtok_var);
+		char *when = strtok_r(NULL, " ", &strtok_var);
+
+		if (chanName && setBy && when) {
+			Channel *c = findChannel(chanName, false);
+
+			if (c) {
+				c->handleTopicInfo(setBy, atoi(when));
+				return;
+			}
+		}
+
 	} else if (strcmp(cmdBuf, "353") == 0) {
 		// RPL_NAMEREPLY:
 		// Target is always us
diff --git a/bouncer/window.cpp b/bouncer/window.cpp
index bf50325..5371176 100644
--- a/bouncer/window.cpp
+++ b/bouncer/window.cpp
@@ -447,6 +447,43 @@ void Channel::handlePrivmsg(const UserRef &user, const char *str) {
 }
 
 
+
+
+void Channel::handleTopic(const UserRef &user, const char *message) {
+	char buf[1024];
+
+	if (user.isValid) {
+		snprintf(buf, sizeof(buf),
+			"%s changed the topic to: %s",
+			user.nick.c_str(),
+			message);
+	} else {
+		snprintf(buf, sizeof(buf),
+			"Topic: %s",
+			message);
+	}
+	pushMessage(buf);
+
+	topic = message;
+
+	Buffer packet;
+	packet.writeU32(id);
+	packet.writeStr(message);
+	server->bouncer->sendToClients(
+		Packet::B2C_CHANNEL_TOPIC, packet);
+}
+
+void Channel::handleTopicInfo(const char *user, int timestamp) {
+	char buf[1024];
+	snprintf(buf, sizeof(buf),
+		"Topic set by %s at %d",
+		user,
+		timestamp);
+	pushMessage(buf);
+}
+
+
+
 char Channel::getEffectivePrefixChar(const char *nick) const {
 	auto i = users.find(nick);
 	if (i == users.end())