From ef8638d389a34fbad9f2dd0dae026fc79408654c Mon Sep 17 00:00:00 2001
From: Test_User <hax@andrewyu.org>
Date: Thu, 18 May 2023 04:12:47 -0400
Subject: Handle SQUIT

---
 server_network.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 46 insertions(+), 2 deletions(-)

(limited to 'server_network.c')

diff --git a/server_network.c b/server_network.c
index 7f8b8a9..b241f62 100644
--- a/server_network.c
+++ b/server_network.c
@@ -125,6 +125,11 @@ int server_handler(struct string sender, uint64_t argc, struct string *argv) {
 		distance += from->distance + 1;
 	}
 
+	if (get_table_index(server_list, argv[3]) != 0) {
+		WRITES(2, STRING("Invalid SERVER recieved! (Duplicate SID already connected)"));
+		return 1;
+	}
+
 	struct string address;
 	address.data = malloc(argv[0].len);
 	if (address.data == 0)
@@ -376,7 +381,7 @@ int kill_handler(struct string sender, uint64_t argc, struct string *argv) {
 		return 1;
 	}
 
-//	TODO: Get accurate list of what got killed, what to rejoin, etc
+	// TODO: Get accurate list of what got killed, what to rejoin, etc
 
 	struct string id = STRING("1HC000000");
 	if (argv[0].len != id.len || memcmp(argv[0].data, id.data, id.len) != 0) {
@@ -450,7 +455,7 @@ int nick_handler(struct string sender, uint64_t argc, struct string *argv) {
 	return 0;
 }
 
-int fjoin_handler(struct string sender, uint64_t argc, struct string **argv) {
+int fjoin_handler(struct string sender, uint64_t argc, struct string *argv) {
 	if (argc < 4) {
 		WRITES(2, STRING("Invalid FJOIN recieved! (Missing parameters"));
 		return 1;
@@ -459,6 +464,44 @@ int fjoin_handler(struct string sender, uint64_t argc, struct string **argv) {
 	return 0;
 }
 
+int squit_handler(struct string sender, uint64_t argc, struct string *argv) {
+	if (argc < 1) {
+		WRITES(2, STRING("Invalid SQUIT recieved! (Missing parameters)"));
+		return 1;
+	}
+
+	for (uint64_t i = 0; i < user_list.len;) {
+		struct user_info *info = user_list.array[i].ptr;
+		if (argv[0].len == info->server.len && memcmp(argv[0].data, info->server.data, argv[0].len) == 0) {
+			remove_table_index(&user_list, user_list.array[i].name);
+
+			free(info->server.data);
+			free(info->nick.data);
+			if (info->opertype.len)
+				free(info->opertype.data);
+
+			// TODO: metadata
+			free(info->metadata.array);
+			free(info->realname.data);
+			free(info->hostname.data);
+			free(info->ip.data);
+			free(info->vhost.data);
+			free(info);
+		} else {
+			i++; // removal of the user from the table shifts the next user into place for us
+		}
+	}
+
+	struct remote_server *server = remove_table_index(&server_list, argv[0]);
+	free(server->name.data);
+	free(server->address.data);
+	if (server->via.data != 0)
+		free(server->via.data);
+	free(server);
+
+	return 0;
+}
+
 int privmsg_handler(struct string sender, uint64_t argc, struct string *argv) {
 	if (argc < 2) {
 		WRITES(2, STRING("Invalid PRIVMSG recieved (Missing parameters)\n"));
@@ -598,6 +641,7 @@ int initservernetwork(void) {
 	set_table_index(&server_network_commands, STRING("KILL"), &kill_handler);
 	set_table_index(&server_network_commands, STRING("NICK"), &nick_handler);
 	set_table_index(&server_network_commands, STRING("FJOIN"), &fjoin_handler);
+	set_table_index(&server_network_commands, STRING("SQUIT"), &squit_handler);
 
 	init_user_commands();
 
-- 
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