Start adding client support

1 files changed, 158 insertions, 0 deletions

diff --git a/client_network.c b/client_network.c
new file mode 100644
index 0000000..05e0787
--- /dev/null
+++ b/client_network.c
@@ -0,0 +1,158 @@
+// Client network command handlers for HaxServ
+//
+// Written by: Test_User <hax@andrewyu.org>
+//
+// This is free and unencumbered software released into the public
+// domain.
+//
+// Anyone is free to copy, modify, publish, use, compile, sell, or
+// distribute this software, either in source code form or as a compiled
+// binary, for any purpose, commercial or non-commercial, and by any
+// means.
+//
+// In jurisdictions that recognize copyright laws, the author or authors
+// of this software dedicate any and all copyright interest in the
+// software to the public domain. We make this dedication for the benefit
+// of the public at large and to the detriment of our heirs and
+// successors. We intend this dedication to be an overt act of
+// relinquishment in perpetuity of all present and future rights to this
+// software under copyright law.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+
+#include <gnutls/gnutls.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "network.h"
+#include "config.h"
+#include "types.h"
+#include "table.h"
+#include "tls.h"
+
+// TODO: Lock sends (everywhere)
+
+struct table client_network_commands = {0};
+struct string client_nick = {0};
+uint8_t client_connected;
+
+int client_nick_handler(uint64_t argc, struct string *argv) {
+	if (argc < 1)
+		return 1;
+
+	void *tmp = malloc(argv[0].len);
+	if (!tmp)
+		return 1;
+	memcpy(tmp, argv[0].data, argv[0].len);
+
+	free(client_nick.data);
+
+	client_nick.data = tmp;
+	client_nick.len = argv[0].len;
+
+	if (client_connected) {
+		SEND(STRING(":1HC000001 NICK "));
+		SEND(client_nick);
+		SEND(STRING(" "));
+		char current_time[22];
+		snprintf(current_time, 22, "%ld", time(NULL));
+		SEND(((struct string){current_time, strlen(current_time)}));
+		SEND(STRING("\n"));
+	}
+
+	return 0;
+}
+
+int client_user_handler(uint64_t argc, struct string *argv) {
+	if (argc < 4)
+		return 1;
+
+	if (client_nick.len == 0)
+		return 1;
+
+	char current_time[22];
+	snprintf(current_time, 22, "%ld", time(NULL));
+	SEND(STRING("UID 1HC000001 "));
+	SEND(((struct string){current_time, strlen(current_time)}));
+	SEND(STRING(" "));
+	SEND(client_nick);
+	SEND(STRING(" "));
+	SEND(client_hostmask);
+	SEND(STRING(" "));
+	SEND(client_hostmask);
+	SEND(STRING(" "));
+	SEND(argv[0]);
+	SEND(STRING(" 192.168.1.1 "));
+	SEND(((struct string){current_time, strlen(current_time)}));
+	SEND(STRING(" +k :"));
+	SEND(argv[3]);
+	SEND(STRING("\n"));
+
+	SENDCLIENT(STRING(":hax.irc.andrewyu.org 001 me :Welcome to the LibreIRC IRC Network\n"));
+	SENDCLIENT(STRING(":hax.irc.andrewyu.org 002 me :Your host is hax.irc.andrewyu.org, running a totally not sus IRCd\n"));
+	SENDCLIENT(STRING(":hax.irc.andrewyu.org 003 me :This server was created 02:51:36 Apr 03 2023"));
+	SENDCLIENT(STRING(":hax.irc.andrewyu.org 004 me irc.andrewyu.org InspIRCd-3 BDGHILNORSTWcdghikorswxz ABCDEFGHIJKLMNOPQRSTXYZabcdefghijklmnopqrstuvwz :BEFHIJLXYZabdefghjkloqvw"));
+	SENDCLIENT(STRING(":hax.irc.andrewyu.org 005 me ACCEPT=100 AWAYLEN=200 BOT=B CALLERID=g CASEMAPPING=ascii CHANLIMIT=#:20 CHANMODES=IXZbegw,k,BEFHJLdfjl,ACDGKMNOPQRSTcimnprstuz CHANNELLEN=60 CHANTYPES=# ELIST=CMNTU ESILENCE=CcdiNnPpTtx EXCEPTS=e :are supported by this server"));
+	SENDCLIENT(STRING(":hax.irc.andrewyu.org 005 me EXTBAN=,ACNOQRSTUacjmnprswz HOSTLEN=64 INVEX=I KEYLEN=32 KICKLEN=300 LINELEN=512 MAXLIST=I:1000,X:1000,b:1000,e:1000,g:1000,w:1000 MAXTARGETS=20 MODES=20 MONITOR=30 NAMELEN=130 NAMESX NETWORK=LibreIRC :are supported by this server"));
+	SENDCLIENT(STRING(":hax.irc.andrewyu.org 005 me NICKLEN=30 OVERRIDE=O PREFIX=(Yqaohv)!~&@%+ REMOVE SAFELIST SECURELIST=60 SILENCE=100 STATUSMSG=!~&@%+ TOPICLEN=330 UHNAMES USERIP USERLEN=10 USERMODES=,,s,BDGHILNORSTWcdghikorwxz :are supported by this server"));
+	SENDCLIENT(STRING(":hax.irc.andrewyu.org 005 me WATCH=32 WHOX :are supported by this server"));
+
+	client_connected = 1;
+
+	return 0;
+}
+
+int client_join_handler(uint64_t argc, struct string *argv) {
+	if (argc < 1)
+		return 1;
+
+	SEND(STRING(":1HC FJOIN "));
+	SEND(argv[0]);
+	SEND(STRING(" "));
+	char current_time[22];
+	snprintf(current_time, 22, "%ld", time(NULL));
+	SEND(((struct string){current_time, strlen(current_time)}));
+	SEND(STRING(" + :,1HC000001\n"));
+
+	return 0;
+}
+
+int client_fd = -1;
+
+int client_listen_fd;
+int initclientnetwork(void) {
+	client_network_commands.array = malloc(0);
+
+	set_table_index(&client_network_commands, STRING("NICK"), &client_nick_handler);
+	set_table_index(&client_network_commands, STRING("USER"), &client_user_handler);
+	set_table_index(&client_network_commands, STRING("JOIN"), &client_join_handler);
+
+	client_nick.data = malloc(0);
+
+	client_listen_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	if (client_listen_fd < 0)
+		return 1;
+
+	struct sockaddr_in localhost = {
+		.sin_family = AF_INET,
+		.sin_port = htons(6667),
+	};
+	inet_pton(AF_INET, "127.0.0.1", &localhost.sin_addr); // this is indeed localhost for mine, and I have no intent to change this
+	bind(client_listen_fd, (struct sockaddr*)&localhost, sizeof(localhost));
+
+	listen(client_listen_fd, 1);
+
+	return 0;
+}