| 1 |
diff --git a/Makefile b/Makefile |
| 2 |
new file mode 100644 |
| 3 |
index 0000000..1db3ff4 |
| 4 |
--- /dev/null |
| 5 |
+++ b/Makefile |
| 6 |
@@ -0,0 +1,23 @@ |
| 7 |
+VERSION := $(shell sed -ne 's/^VERSION = "\(.*\)"/\1/p' lib/server.py) |
| 8 |
+ |
| 9 |
+DISTFILES = alcuin config.py.example README.txt lib |
| 10 |
+ |
| 11 |
+all: |
| 12 |
+ echo "Nothing to do." |
| 13 |
+ |
| 14 |
+dist: |
| 15 |
+ mkdir alcuin-$(VERSION) |
| 16 |
+ cp -r $(DISTFILES) alcuin-$(VERSION) |
| 17 |
+ tar cvzf alcuin-$(VERSION).tar.gz alcuin-$(VERSION) |
| 18 |
+ rm -rf alcuin-$(VERSION) |
| 19 |
+ |
| 20 |
+clean: |
| 21 |
+ rm -rf genesis.vdiff genesis.vdiff.escaped alcuin-$(VERSION) |
| 22 |
+ find . -name "*.swp" -delete |
| 23 |
+ find . -name "*.pyc" -delete |
| 24 |
+ |
| 25 |
+genesis: |
| 26 |
+ git show --pretty="format:" -1 HEAD > genesis.vdiff |
| 27 |
+ |
| 28 |
+escaped-genesis: |
| 29 |
+ git show --pretty="format:" -1 HEAD | sed 's/&/\&/g; s/</\</g; s/>/\>/g; s/"/\"/g; s/'"'"'/\'/g; s/((/\(\(/g; s/))/\)\)/g; s/\[([0-9])\[/\[$1\[/g; s/]]/\]\]/g' > genesis.vdiff.escaped |
| 30 |
diff --git a/README.txt b/README.txt |
| 31 |
new file mode 100644 |
| 32 |
index 0000000..2d5ff88 |
| 33 |
--- /dev/null |
| 34 |
+++ b/README.txt |
| 35 |
@@ -0,0 +1,25 @@ |
| 36 |
+Alcuin implements an IRC server with a udp client built in |
| 37 |
+such that it can connect to other alcuin servers via a |
| 38 |
+gossip network. It is a work in progress and much is |
| 39 |
+yet to be completed including but not limited to: |
| 40 |
+ |
| 41 |
+- gossip style message forwarding |
| 42 |
+- message deduplication |
| 43 |
+- symmetric encryption of messages |
| 44 |
+- support for broadcasting several important IRC commands |
| 45 |
+ over the gossip net. |
| 46 |
+- mitigation of hash length extension attacks |
| 47 |
+ |
| 48 |
+GETTING STARTED |
| 49 |
+ |
| 50 |
+1. Copy config.py.example to config.py (nothing in the config file is |
| 51 |
+used yet, but alcuin will crash if it doesn't exist). |
| 52 |
+2. Launch alcuin with something like the following command: |
| 53 |
+./alcuin --verbose --port=6668 --peers=206.189.163.145 |
| 54 |
+ |
| 55 |
+NOTES FOR DIFF/PATCH N00B5 |
| 56 |
+ |
| 57 |
+To apply the genesis patch (or any patch) to the current directory |
| 58 |
+and recreate the directory structure of the original: |
| 59 |
+ |
| 60 |
+patch -p1 -ruN < <wherever>/genesis.vdiff |
| 61 |
diff --git a/alcuin b/alcuin |
| 62 |
new file mode 100755 |
| 63 |
index 0000000..bbf9ed4 |
| 64 |
--- /dev/null |
| 65 |
+++ b/alcuin |
| 66 |
@@ -0,0 +1,146 @@ |
| 67 |
+#! /usr/bin/env python |
| 68 |
+ |
| 69 |
+import os |
| 70 |
+import re |
| 71 |
+import select |
| 72 |
+import socket |
| 73 |
+import string |
| 74 |
+import sys |
| 75 |
+import tempfile |
| 76 |
+import time |
| 77 |
+from lib.server import VERSION |
| 78 |
+from lib.server import Server |
| 79 |
+from lib.peer import Peer |
| 80 |
+from datetime import datetime |
| 81 |
+from optparse import OptionParser |
| 82 |
+import config as cfg |
| 83 |
+ |
| 84 |
+ |
| 85 |
+def main(argv): |
| 86 |
+ op = OptionParser( |
| 87 |
+ version=VERSION, |
| 88 |
+ description="alcuin is a small and limited IRC server emulator for gossip networks.") |
| 89 |
+ op.add_option( |
| 90 |
+ "-d", "--daemon", |
| 91 |
+ action="store_true", |
| 92 |
+ help="fork and become a daemon") |
| 93 |
+ op.add_option( |
| 94 |
+ "--debug", |
| 95 |
+ action="store_true", |
| 96 |
+ help="print debug messages to stdout") |
| 97 |
+ op.add_option( |
| 98 |
+ "--listen", |
| 99 |
+ metavar="X", |
| 100 |
+ help="listen on specific IP address X") |
| 101 |
+ op.add_option( |
| 102 |
+ "--logdir", |
| 103 |
+ metavar="X", |
| 104 |
+ help="store channel log in directory X") |
| 105 |
+ op.add_option( |
| 106 |
+ "--motd", |
| 107 |
+ metavar="X", |
| 108 |
+ help="display file X as message of the day") |
| 109 |
+ op.add_option( |
| 110 |
+ "-s", "--ssl-pem-file", |
| 111 |
+ metavar="FILE", |
| 112 |
+ help="enable SSL and use FILE as the .pem certificate+key") |
| 113 |
+ op.add_option( |
| 114 |
+ "-p", "--password", |
| 115 |
+ metavar="X", |
| 116 |
+ help="require connection password X; default: no password") |
| 117 |
+ op.add_option( |
| 118 |
+ "--ports", |
| 119 |
+ metavar="X", |
| 120 |
+ help="listen to ports X (a list separated by comma or whitespace);" |
| 121 |
+ " default: 6667 or 6697 if SSL is enabled") |
| 122 |
+ op.add_option( |
| 123 |
+ "--udp-port", |
| 124 |
+ metavar="X", |
| 125 |
+ help="listen for UDP packets on X;" |
| 126 |
+ " default: 7778") |
| 127 |
+ op.add_option( |
| 128 |
+ "--peers", |
| 129 |
+ metavar="X", |
| 130 |
+ help="Broadcast to X (a list of IP addresses separated by comma or whitespace)") |
| 131 |
+ op.add_option( |
| 132 |
+ "--statedir", |
| 133 |
+ metavar="X", |
| 134 |
+ help="save persistent channel state (topic, key) in directory X") |
| 135 |
+ op.add_option( |
| 136 |
+ "--verbose", |
| 137 |
+ action="store_true", |
| 138 |
+ help="be verbose (print some progress messages to stdout)") |
| 139 |
+ if os.name == "posix": |
| 140 |
+ op.add_option( |
| 141 |
+ "--chroot", |
| 142 |
+ metavar="X", |
| 143 |
+ help="change filesystem root to directory X after startup" |
| 144 |
+ " (requires root)") |
| 145 |
+ op.add_option( |
| 146 |
+ "--setuid", |
| 147 |
+ metavar="U[:G]", |
| 148 |
+ help="change process user (and optionally group) after startup" |
| 149 |
+ " (requires root)") |
| 150 |
+ |
| 151 |
+ (options, args) = op.parse_args(argv[1:]) |
| 152 |
+ if options.debug: |
| 153 |
+ options.verbose = True |
| 154 |
+ if options.ports is None: |
| 155 |
+ if options.ssl_pem_file is None: |
| 156 |
+ options.ports = "6667" |
| 157 |
+ else: |
| 158 |
+ options.ports = "6697" |
| 159 |
+ if options.peers is None: |
| 160 |
+ options.peers = "" |
| 161 |
+ if options.udp_port is None: |
| 162 |
+ options.udp_port = 7778 |
| 163 |
+ else: |
| 164 |
+ options.udp_port = int(options.udp_port) |
| 165 |
+ if options.chroot: |
| 166 |
+ if os.getuid() != 0: |
| 167 |
+ op.error("Must be root to use --chroot") |
| 168 |
+ if options.setuid: |
| 169 |
+ from pwd import getpwnam |
| 170 |
+ from grp import getgrnam |
| 171 |
+ if os.getuid() != 0: |
| 172 |
+ op.error("Must be root to use --setuid") |
| 173 |
+ matches = options.setuid.split(":") |
| 174 |
+ if len(matches) == 2: |
| 175 |
+ options.setuid = (getpwnam(matches[0]).pw_uid, |
| 176 |
+ getgrnam(matches[1]).gr_gid) |
| 177 |
+ elif len(matches) == 1: |
| 178 |
+ options.setuid = (getpwnam(matches[0]).pw_uid, |
| 179 |
+ getpwnam(matches[0]).pw_gid) |
| 180 |
+ else: |
| 181 |
+ op.error("Specify a user, or user and group separated by a colon," |
| 182 |
+ " e.g. --setuid daemon, --setuid nobody:nobody") |
| 183 |
+ if (os.getuid() == 0 or os.getgid() == 0) and not options.setuid: |
| 184 |
+ op.error("Running this service as root is not recommended. Use the" |
| 185 |
+ " --setuid option to switch to an unprivileged account after" |
| 186 |
+ " startup. If you really intend to run as root, use" |
| 187 |
+ " \"--setuid root\".") |
| 188 |
+ |
| 189 |
+ ports = [] |
| 190 |
+ for port in re.split(r"[,\s]+", options.ports): |
| 191 |
+ try: |
| 192 |
+ ports.append(int(port)) |
| 193 |
+ except ValueError: |
| 194 |
+ op.error("bad port: %r" % port) |
| 195 |
+ options.ports = ports |
| 196 |
+ peers = [] |
| 197 |
+ for peer in re.split(r"[,\s]+", options.peers): |
| 198 |
+ try: |
| 199 |
+ peers.append(Peer(peer)) |
| 200 |
+ except ValueError: |
| 201 |
+ op.error("bad peer ip: %r" % peer) |
| 202 |
+ options.peers = peers |
| 203 |
+ server = Server(options) |
| 204 |
+ if options.daemon: |
| 205 |
+ server.daemonize() |
| 206 |
+ try: |
| 207 |
+ server.start() |
| 208 |
+ except KeyboardInterrupt: |
| 209 |
+ server.print_error("Interrupted.") |
| 210 |
+ |
| 211 |
+ |
| 212 |
+main(sys.argv) |
| 213 |
diff --git a/config.py.example b/config.py.example |
| 214 |
new file mode 100644 |
| 215 |
index 0000000..f9adc62 |
| 216 |
--- /dev/null |
| 217 |
+++ b/config.py.example |
| 218 |
@@ -0,0 +1,4 @@ |
| 219 |
+secret = "SEEKRIT" |
| 220 |
+peer_secrets = { |
| 221 |
+ "10.0.0.1":"K33P-0U7!" |
| 222 |
+} |
| 223 |
diff --git a/lib/__init__.py b/lib/__init__.py |
| 224 |
new file mode 100644 |
| 225 |
index 0000000..d2e75fb |
| 226 |
--- /dev/null |
| 227 |
+++ b/lib/__init__.py |
| 228 |
@@ -0,0 +1 @@ |
| 229 |
+# This file can't be empty otherwise diff won't see it. |
| 230 |
diff --git a/lib/channel.py b/lib/channel.py |
| 231 |
new file mode 100644 |
| 232 |
index 0000000..5086804 |
| 233 |
--- /dev/null |
| 234 |
+++ b/lib/channel.py |
| 235 |
@@ -0,0 +1,60 @@ |
| 236 |
+class Channel(object): |
| 237 |
+ def __init__(self, server, name): |
| 238 |
+ self.server = server |
| 239 |
+ self.name = name |
| 240 |
+ self.members = set() |
| 241 |
+ self._topic = "" |
| 242 |
+ self._key = None |
| 243 |
+ if self.server.statedir: |
| 244 |
+ self._state_path = "%s/%s" % ( |
| 245 |
+ self.server.statedir, |
| 246 |
+ name.replace("_", "__").replace("/", "_")) |
| 247 |
+ self._read_state() |
| 248 |
+ else: |
| 249 |
+ self._state_path = None |
| 250 |
+ |
| 251 |
+ def add_member(self, client): |
| 252 |
+ self.members.add(client) |
| 253 |
+ |
| 254 |
+ def get_topic(self): |
| 255 |
+ return self._topic |
| 256 |
+ |
| 257 |
+ def set_topic(self, value): |
| 258 |
+ self._topic = value |
| 259 |
+ self._write_state() |
| 260 |
+ |
| 261 |
+ topic = property(get_topic, set_topic) |
| 262 |
+ |
| 263 |
+ def get_key(self): |
| 264 |
+ return self._key |
| 265 |
+ |
| 266 |
+ def set_key(self, value): |
| 267 |
+ self._key = value |
| 268 |
+ self._write_state() |
| 269 |
+ |
| 270 |
+ key = property(get_key, set_key) |
| 271 |
+ |
| 272 |
+ def remove_client(self, client): |
| 273 |
+ self.members.discard(client) |
| 274 |
+ if not self.members: |
| 275 |
+ self.server.remove_channel(self) |
| 276 |
+ |
| 277 |
+ def _read_state(self): |
| 278 |
+ if not (self._state_path and os.path.exists(self._state_path)): |
| 279 |
+ return |
| 280 |
+ data = {} |
| 281 |
+ exec(open(self._state_path), {}, data) |
| 282 |
+ self._topic = data.get("topic", "") |
| 283 |
+ self._key = data.get("key") |
| 284 |
+ |
| 285 |
+ def _write_state(self): |
| 286 |
+ if not self._state_path: |
| 287 |
+ return |
| 288 |
+ (fd, path) = tempfile.mkstemp(dir=os.path.dirname(self._state_path)) |
| 289 |
+ fp = os.fdopen(fd, "w") |
| 290 |
+ fp.write("topic = %r\n" % self.topic) |
| 291 |
+ fp.write("key = %r\n" % self.key) |
| 292 |
+ fp.close() |
| 293 |
+ os.rename(path, self._state_path) |
| 294 |
+ |
| 295 |
+ |
| 296 |
diff --git a/lib/client.py b/lib/client.py |
| 297 |
new file mode 100644 |
| 298 |
index 0000000..cfc5331 |
| 299 |
--- /dev/null |
| 300 |
+++ b/lib/client.py |
| 301 |
@@ -0,0 +1,548 @@ |
| 302 |
+import time |
| 303 |
+import sys |
| 304 |
+import re |
| 305 |
+import string |
| 306 |
+from lib.server import VERSION |
| 307 |
+from lib.infosec import Infosec |
| 308 |
+from funcs import * |
| 309 |
+ |
| 310 |
+class Client(object): |
| 311 |
+ __linesep_regexp = re.compile(r"\r?\n") |
| 312 |
+ # The RFC limit for nicknames is 9 characters, but what the heck. |
| 313 |
+ __valid_nickname_regexp = re.compile( |
| 314 |
+ r"^[][\`_^{|}A-Za-z][][\`_^{|}A-Za-z0-9-]{0,50}$") |
| 315 |
+ __valid_channelname_regexp = re.compile( |
| 316 |
+ r"^[&#+!][^\x00\x07\x0a\x0d ,:]{0,50}$") |
| 317 |
+ |
| 318 |
+ def __init__(self, server, socket): |
| 319 |
+ self.server = server |
| 320 |
+ self.socket = socket |
| 321 |
+ self.channels = {} # irc_lower(Channel name) --> Channel |
| 322 |
+ self.nickname = None |
| 323 |
+ self.user = None |
| 324 |
+ self.realname = None |
| 325 |
+ (self.host, self.port) = socket.getpeername() |
| 326 |
+ self.__timestamp = time.time() |
| 327 |
+ self.__readbuffer = "" |
| 328 |
+ self.__writebuffer = "" |
| 329 |
+ self.__sent_ping = False |
| 330 |
+ self.infosec = Infosec() |
| 331 |
+ if self.server.password: |
| 332 |
+ self.__handle_command = self.__pass_handler |
| 333 |
+ else: |
| 334 |
+ self.__handle_command = self.__registration_handler |
| 335 |
+ |
| 336 |
+ def get_prefix(self): |
| 337 |
+ return "%s!%s@%s" % (self.nickname, self.user, self.host) |
| 338 |
+ prefix = property(get_prefix) |
| 339 |
+ |
| 340 |
+ def check_aliveness(self): |
| 341 |
+ now = time.time() |
| 342 |
+ if self.__timestamp + 180 < now: |
| 343 |
+ self.disconnect("ping timeout") |
| 344 |
+ return |
| 345 |
+ if not self.__sent_ping and self.__timestamp + 90 < now: |
| 346 |
+ if self.__handle_command == self.__command_handler: |
| 347 |
+ # Registered. |
| 348 |
+ self.message("PING :%s" % self.server.name) |
| 349 |
+ self.__sent_ping = True |
| 350 |
+ else: |
| 351 |
+ # Not registered. |
| 352 |
+ self.disconnect("ping timeout") |
| 353 |
+ |
| 354 |
+ def write_queue_size(self): |
| 355 |
+ return len(self.__writebuffer) |
| 356 |
+ |
| 357 |
+ def __parse_read_buffer(self): |
| 358 |
+ lines = self.__linesep_regexp.split(self.__readbuffer) |
| 359 |
+ self.__readbuffer = lines[-1] |
| 360 |
+ lines = lines[:-1] |
| 361 |
+ for line in lines: |
| 362 |
+ if not line: |
| 363 |
+ # Empty line. Ignore. |
| 364 |
+ continue |
| 365 |
+ x = line.split(" ", 1) |
| 366 |
+ command = x[0].upper() |
| 367 |
+ if len(x) == 1: |
| 368 |
+ arguments = [] |
| 369 |
+ else: |
| 370 |
+ if len(x[1]) > 0 and x[1][0] == ":": |
| 371 |
+ arguments = [x[1][1:]] |
| 372 |
+ else: |
| 373 |
+ y = string.split(x[1], " :", 1) |
| 374 |
+ arguments = string.split(y[0]) |
| 375 |
+ if len(y) == 2: |
| 376 |
+ arguments.append(y[1]) |
| 377 |
+ self.__handle_command(command, arguments) |
| 378 |
+ |
| 379 |
+ def __pass_handler(self, command, arguments): |
| 380 |
+ server = self.server |
| 381 |
+ if command == "PASS": |
| 382 |
+ if len(arguments) == 0: |
| 383 |
+ self.reply_461("PASS") |
| 384 |
+ else: |
| 385 |
+ if arguments[0].lower() == server.password: |
| 386 |
+ self.__handle_command = self.__registration_handler |
| 387 |
+ else: |
| 388 |
+ self.reply("464 :Password incorrect") |
| 389 |
+ elif command == "QUIT": |
| 390 |
+ self.disconnect("Client quit") |
| 391 |
+ return |
| 392 |
+ |
| 393 |
+ def __registration_handler(self, command, arguments): |
| 394 |
+ server = self.server |
| 395 |
+ if command == "NICK": |
| 396 |
+ if len(arguments) < 1: |
| 397 |
+ self.reply("431 :No nickname given") |
| 398 |
+ return |
| 399 |
+ nick = arguments[0] |
| 400 |
+ if server.get_client(nick): |
| 401 |
+ self.reply("433 * %s :Nickname is already in use" % nick) |
| 402 |
+ elif not self.__valid_nickname_regexp.match(nick): |
| 403 |
+ self.reply("432 * %s :Erroneous nickname" % nick) |
| 404 |
+ else: |
| 405 |
+ self.nickname = nick |
| 406 |
+ server.client_changed_nickname(self, None) |
| 407 |
+ elif command == "USER": |
| 408 |
+ if len(arguments) < 4: |
| 409 |
+ self.reply_461("USER") |
| 410 |
+ return |
| 411 |
+ self.user = arguments[0] |
| 412 |
+ self.realname = arguments[3] |
| 413 |
+ elif command == "QUIT": |
| 414 |
+ self.disconnect("Client quit") |
| 415 |
+ return |
| 416 |
+ if self.nickname and self.user: |
| 417 |
+ self.reply("001 %s :Hi, welcome to IRC" % self.nickname) |
| 418 |
+ self.reply("002 %s :Your host is %s, running version miniircd-%s" |
| 419 |
+ % (self.nickname, server.name, VERSION)) |
| 420 |
+ self.reply("003 %s :This server was created sometime" |
| 421 |
+ % self.nickname) |
| 422 |
+ self.reply("004 %s :%s miniircd-%s o o" |
| 423 |
+ % (self.nickname, server.name, VERSION)) |
| 424 |
+ self.send_lusers() |
| 425 |
+ self.send_motd() |
| 426 |
+ self.__handle_command = self.__command_handler |
| 427 |
+ |
| 428 |
+ def __command_handler(self, command, arguments): |
| 429 |
+ def away_handler(): |
| 430 |
+ pass |
| 431 |
+ |
| 432 |
+ def ison_handler(): |
| 433 |
+ if len(arguments) < 1: |
| 434 |
+ self.reply_461("ISON") |
| 435 |
+ return |
| 436 |
+ nicks = arguments |
| 437 |
+ online = [n for n in nicks if server.get_client(n)] |
| 438 |
+ self.reply("303 %s :%s" % (self.nickname, " ".join(online))) |
| 439 |
+ |
| 440 |
+ def join_handler(): |
| 441 |
+ if len(arguments) < 1: |
| 442 |
+ self.reply_461("JOIN") |
| 443 |
+ return |
| 444 |
+ if arguments[0] == "0": |
| 445 |
+ for (channelname, channel) in self.channels.items(): |
| 446 |
+ self.message_channel(channel, "PART", channelname, True) |
| 447 |
+ self.channel_log(channel, "left", meta=True) |
| 448 |
+ server.remove_member_from_channel(self, channelname) |
| 449 |
+ self.channels = {} |
| 450 |
+ return |
| 451 |
+ channelnames = arguments[0].split(",") |
| 452 |
+ if len(arguments) > 1: |
| 453 |
+ keys = arguments[1].split(",") |
| 454 |
+ else: |
| 455 |
+ keys = [] |
| 456 |
+ keys.extend((len(channelnames) - len(keys)) * [None]) |
| 457 |
+ for (i, channelname) in enumerate(channelnames): |
| 458 |
+ if irc_lower(channelname) in self.channels: |
| 459 |
+ continue |
| 460 |
+ if not valid_channel_re.match(channelname): |
| 461 |
+ self.reply_403(channelname) |
| 462 |
+ continue |
| 463 |
+ channel = server.get_channel(channelname) |
| 464 |
+ if channel.key is not None and channel.key != keys[i]: |
| 465 |
+ self.reply( |
| 466 |
+ "475 %s %s :Cannot join channel (+k) - bad key" |
| 467 |
+ % (self.nickname, channelname)) |
| 468 |
+ continue |
| 469 |
+ channel.add_member(self) |
| 470 |
+ self.channels[irc_lower(channelname)] = channel |
| 471 |
+ self.message_channel(channel, "JOIN", channelname, True) |
| 472 |
+ self.channel_log(channel, "joined", meta=True) |
| 473 |
+ if channel.topic: |
| 474 |
+ self.reply("332 %s %s :%s" |
| 475 |
+ % (self.nickname, channel.name, channel.topic)) |
| 476 |
+ else: |
| 477 |
+ self.reply("331 %s %s :No topic is set" |
| 478 |
+ % (self.nickname, channel.name)) |
| 479 |
+ self.reply("353 %s = %s :%s" |
| 480 |
+ % (self.nickname, |
| 481 |
+ channelname, |
| 482 |
+ " ".join(sorted(x.nickname |
| 483 |
+ for x in channel.members)))) |
| 484 |
+ self.reply("366 %s %s :End of NAMES list" |
| 485 |
+ % (self.nickname, channelname)) |
| 486 |
+ |
| 487 |
+ def list_handler(): |
| 488 |
+ if len(arguments) < 1: |
| 489 |
+ channels = server.channels.values() |
| 490 |
+ else: |
| 491 |
+ channels = [] |
| 492 |
+ for channelname in arguments[0].split(","): |
| 493 |
+ if server.has_channel(channelname): |
| 494 |
+ channels.append(server.get_channel(channelname)) |
| 495 |
+ channels.sort(key=lambda x: x.name) |
| 496 |
+ for channel in channels: |
| 497 |
+ self.reply("322 %s %s %d :%s" |
| 498 |
+ % (self.nickname, channel.name, |
| 499 |
+ len(channel.members), channel.topic)) |
| 500 |
+ self.reply("323 %s :End of LIST" % self.nickname) |
| 501 |
+ |
| 502 |
+ def lusers_handler(): |
| 503 |
+ self.send_lusers() |
| 504 |
+ |
| 505 |
+ def mode_handler(): |
| 506 |
+ if len(arguments) < 1: |
| 507 |
+ self.reply_461("MODE") |
| 508 |
+ return |
| 509 |
+ targetname = arguments[0] |
| 510 |
+ if server.has_channel(targetname): |
| 511 |
+ channel = server.get_channel(targetname) |
| 512 |
+ if len(arguments) < 2: |
| 513 |
+ if channel.key: |
| 514 |
+ modes = "+k" |
| 515 |
+ if irc_lower(channel.name) in self.channels: |
| 516 |
+ modes += " %s" % channel.key |
| 517 |
+ else: |
| 518 |
+ modes = "+" |
| 519 |
+ self.reply("324 %s %s %s" |
| 520 |
+ % (self.nickname, targetname, modes)) |
| 521 |
+ return |
| 522 |
+ flag = arguments[1] |
| 523 |
+ if flag == "+k": |
| 524 |
+ if len(arguments) < 3: |
| 525 |
+ self.reply_461("MODE") |
| 526 |
+ return |
| 527 |
+ key = arguments[2] |
| 528 |
+ if irc_lower(channel.name) in self.channels: |
| 529 |
+ channel.key = key |
| 530 |
+ self.message_channel( |
| 531 |
+ channel, "MODE", "%s +k %s" % (channel.name, key), |
| 532 |
+ True) |
| 533 |
+ self.channel_log( |
| 534 |
+ channel, "set channel key to %s" % key, meta=True) |
| 535 |
+ else: |
| 536 |
+ self.reply("442 %s :You're not on that channel" |
| 537 |
+ % targetname) |
| 538 |
+ elif flag == "-k": |
| 539 |
+ if irc_lower(channel.name) in self.channels: |
| 540 |
+ channel.key = None |
| 541 |
+ self.message_channel( |
| 542 |
+ channel, "MODE", "%s -k" % channel.name, |
| 543 |
+ True) |
| 544 |
+ self.channel_log( |
| 545 |
+ channel, "removed channel key", meta=True) |
| 546 |
+ else: |
| 547 |
+ self.reply("442 %s :You're not on that channel" |
| 548 |
+ % targetname) |
| 549 |
+ else: |
| 550 |
+ self.reply("472 %s %s :Unknown MODE flag" |
| 551 |
+ % (self.nickname, flag)) |
| 552 |
+ elif targetname == self.nickname: |
| 553 |
+ if len(arguments) == 1: |
| 554 |
+ self.reply("221 %s +" % self.nickname) |
| 555 |
+ else: |
| 556 |
+ self.reply("501 %s :Unknown MODE flag" % self.nickname) |
| 557 |
+ else: |
| 558 |
+ self.reply_403(targetname) |
| 559 |
+ |
| 560 |
+ def motd_handler(): |
| 561 |
+ self.send_motd() |
| 562 |
+ |
| 563 |
+ def nick_handler(): |
| 564 |
+ if len(arguments) < 1: |
| 565 |
+ self.reply("431 :No nickname given") |
| 566 |
+ return |
| 567 |
+ newnick = arguments[0] |
| 568 |
+ client = server.get_client(newnick) |
| 569 |
+ if newnick == self.nickname: |
| 570 |
+ pass |
| 571 |
+ elif client and client is not self: |
| 572 |
+ self.reply("433 %s %s :Nickname is already in use" |
| 573 |
+ % (self.nickname, newnick)) |
| 574 |
+ elif not self.__valid_nickname_regexp.match(newnick): |
| 575 |
+ self.reply("432 %s %s :Erroneous Nickname" |
| 576 |
+ % (self.nickname, newnick)) |
| 577 |
+ else: |
| 578 |
+ for x in self.channels.values(): |
| 579 |
+ self.channel_log( |
| 580 |
+ x, "changed nickname to %s" % newnick, meta=True) |
| 581 |
+ oldnickname = self.nickname |
| 582 |
+ self.nickname = newnick |
| 583 |
+ server.client_changed_nickname(self, oldnickname) |
| 584 |
+ self.message_related( |
| 585 |
+ ":%s!%s@%s NICK %s" |
| 586 |
+ % (oldnickname, self.user, self.host, self.nickname), |
| 587 |
+ True) |
| 588 |
+ |
| 589 |
+ def notice_and_privmsg_handler(): |
| 590 |
+ if len(arguments) == 0: |
| 591 |
+ self.reply("411 %s :No recipient given (%s)" |
| 592 |
+ % (self.nickname, command)) |
| 593 |
+ return |
| 594 |
+ if len(arguments) == 1: |
| 595 |
+ self.reply("412 %s :No text to send" % self.nickname) |
| 596 |
+ return |
| 597 |
+ targetname = arguments[0] |
| 598 |
+ message = arguments[1] |
| 599 |
+ client = server.get_client(targetname) |
| 600 |
+ |
| 601 |
+ if client: |
| 602 |
+ client.message(":%s %s %s :%s" |
| 603 |
+ % (self.prefix, command, targetname, message)) |
| 604 |
+ elif server.has_channel(targetname): |
| 605 |
+ channel = server.get_channel(targetname) |
| 606 |
+ self.message_channel( |
| 607 |
+ channel, command, "%s :%s" % (channel.name, message)) |
| 608 |
+ self.channel_log(channel, message) |
| 609 |
+ else: |
| 610 |
+ self.reply("401 %s %s :No such nick/channel" |
| 611 |
+ % (self.nickname, targetname)) |
| 612 |
+ |
| 613 |
+ def part_handler(): |
| 614 |
+ if len(arguments) < 1: |
| 615 |
+ self.reply_461("PART") |
| 616 |
+ return |
| 617 |
+ if len(arguments) > 1: |
| 618 |
+ partmsg = arguments[1] |
| 619 |
+ else: |
| 620 |
+ partmsg = self.nickname |
| 621 |
+ for channelname in arguments[0].split(","): |
| 622 |
+ if not valid_channel_re.match(channelname): |
| 623 |
+ self.reply_403(channelname) |
| 624 |
+ elif not irc_lower(channelname) in self.channels: |
| 625 |
+ self.reply("442 %s %s :You're not on that channel" |
| 626 |
+ % (self.nickname, channelname)) |
| 627 |
+ else: |
| 628 |
+ channel = self.channels[irc_lower(channelname)] |
| 629 |
+ self.message_channel( |
| 630 |
+ channel, "PART", "%s :%s" % (channelname, partmsg), |
| 631 |
+ True) |
| 632 |
+ self.channel_log(channel, "left (%s)" % partmsg, meta=True) |
| 633 |
+ del self.channels[irc_lower(channelname)] |
| 634 |
+ server.remove_member_from_channel(self, channelname) |
| 635 |
+ |
| 636 |
+ def ping_handler(): |
| 637 |
+ if len(arguments) < 1: |
| 638 |
+ self.reply("409 %s :No origin specified" % self.nickname) |
| 639 |
+ return |
| 640 |
+ self.reply("PONG %s :%s" % (server.name, arguments[0])) |
| 641 |
+ |
| 642 |
+ def pong_handler(): |
| 643 |
+ pass |
| 644 |
+ |
| 645 |
+ def quit_handler(): |
| 646 |
+ if len(arguments) < 1: |
| 647 |
+ quitmsg = self.nickname |
| 648 |
+ else: |
| 649 |
+ quitmsg = arguments[0] |
| 650 |
+ self.disconnect(quitmsg) |
| 651 |
+ |
| 652 |
+ def topic_handler(): |
| 653 |
+ if len(arguments) < 1: |
| 654 |
+ self.reply_461("TOPIC") |
| 655 |
+ return |
| 656 |
+ channelname = arguments[0] |
| 657 |
+ channel = self.channels.get(irc_lower(channelname)) |
| 658 |
+ if channel: |
| 659 |
+ if len(arguments) > 1: |
| 660 |
+ newtopic = arguments[1] |
| 661 |
+ channel.topic = newtopic |
| 662 |
+ self.message_channel( |
| 663 |
+ channel, "TOPIC", "%s :%s" % (channelname, newtopic), |
| 664 |
+ True) |
| 665 |
+ self.channel_log( |
| 666 |
+ channel, "set topic to %r" % newtopic, meta=True) |
| 667 |
+ else: |
| 668 |
+ if channel.topic: |
| 669 |
+ self.reply("332 %s %s :%s" |
| 670 |
+ % (self.nickname, channel.name, |
| 671 |
+ channel.topic)) |
| 672 |
+ else: |
| 673 |
+ self.reply("331 %s %s :No topic is set" |
| 674 |
+ % (self.nickname, channel.name)) |
| 675 |
+ else: |
| 676 |
+ self.reply("442 %s :You're not on that channel" % channelname) |
| 677 |
+ |
| 678 |
+ def wallops_handler(): |
| 679 |
+ if len(arguments) < 1: |
| 680 |
+ self.reply_461(command) |
| 681 |
+ message = arguments[0] |
| 682 |
+ for client in server.clients.values(): |
| 683 |
+ client.message(":%s NOTICE %s :Global notice: %s" |
| 684 |
+ % (self.prefix, client.nickname, message)) |
| 685 |
+ |
| 686 |
+ def who_handler(): |
| 687 |
+ if len(arguments) < 1: |
| 688 |
+ return |
| 689 |
+ targetname = arguments[0] |
| 690 |
+ if server.has_channel(targetname): |
| 691 |
+ channel = server.get_channel(targetname) |
| 692 |
+ for member in channel.members: |
| 693 |
+ self.reply("352 %s %s %s %s %s %s H :0 %s" |
| 694 |
+ % (self.nickname, targetname, member.user, |
| 695 |
+ member.host, server.name, member.nickname, |
| 696 |
+ member.realname)) |
| 697 |
+ self.reply("315 %s %s :End of WHO list" |
| 698 |
+ % (self.nickname, targetname)) |
| 699 |
+ |
| 700 |
+ def whois_handler(): |
| 701 |
+ if len(arguments) < 1: |
| 702 |
+ return |
| 703 |
+ username = arguments[0] |
| 704 |
+ user = server.get_client(username) |
| 705 |
+ if user: |
| 706 |
+ self.reply("311 %s %s %s %s * :%s" |
| 707 |
+ % (self.nickname, user.nickname, user.user, |
| 708 |
+ user.host, user.realname)) |
| 709 |
+ self.reply("312 %s %s %s :%s" |
| 710 |
+ % (self.nickname, user.nickname, server.name, |
| 711 |
+ server.name)) |
| 712 |
+ self.reply("319 %s %s :%s" |
| 713 |
+ % (self.nickname, user.nickname, |
| 714 |
+ " ".join(user.channels))) |
| 715 |
+ self.reply("318 %s %s :End of WHOIS list" |
| 716 |
+ % (self.nickname, user.nickname)) |
| 717 |
+ else: |
| 718 |
+ self.reply("401 %s %s :No such nick" |
| 719 |
+ % (self.nickname, username)) |
| 720 |
+ |
| 721 |
+ handler_table = { |
| 722 |
+ "AWAY": away_handler, |
| 723 |
+ "ISON": ison_handler, |
| 724 |
+ "JOIN": join_handler, |
| 725 |
+ "LIST": list_handler, |
| 726 |
+ "LUSERS": lusers_handler, |
| 727 |
+ "MODE": mode_handler, |
| 728 |
+ "MOTD": motd_handler, |
| 729 |
+ "NICK": nick_handler, |
| 730 |
+ "NOTICE": notice_and_privmsg_handler, |
| 731 |
+ "PART": part_handler, |
| 732 |
+ "PING": ping_handler, |
| 733 |
+ "PONG": pong_handler, |
| 734 |
+ "PRIVMSG": notice_and_privmsg_handler, |
| 735 |
+ "QUIT": quit_handler, |
| 736 |
+ "TOPIC": topic_handler, |
| 737 |
+ "WALLOPS": wallops_handler, |
| 738 |
+ "WHO": who_handler, |
| 739 |
+ "WHOIS": whois_handler, |
| 740 |
+ } |
| 741 |
+ server = self.server |
| 742 |
+ valid_channel_re = self.__valid_channelname_regexp |
| 743 |
+ try: |
| 744 |
+ handler_table[command]() |
| 745 |
+ except KeyError: |
| 746 |
+ self.reply("421 %s %s :Unknown command" % (self.nickname, command)) |
| 747 |
+ |
| 748 |
+ def udp_data_received(self, data): |
| 749 |
+ if data: |
| 750 |
+ message = self.infosec.unpack(data) |
| 751 |
+ if(message != None): |
| 752 |
+ self.message(message) |
| 753 |
+ |
| 754 |
+ def socket_readable_notification(self): |
| 755 |
+ try: |
| 756 |
+ data = self.socket.recv(2 ** 10) |
| 757 |
+ self.server.print_debug( |
| 758 |
+ "[%s:%d] -> %r" % (self.host, self.port, data)) |
| 759 |
+ quitmsg = "EOT" |
| 760 |
+ except socket.error as x: |
| 761 |
+ data = "" |
| 762 |
+ quitmsg = x |
| 763 |
+ if data: |
| 764 |
+ self.__readbuffer += data |
| 765 |
+ self.__parse_read_buffer() |
| 766 |
+ self.__timestamp = time.time() |
| 767 |
+ self.__sent_ping = False |
| 768 |
+ for peer in self.server.peers: |
| 769 |
+ peer.send(self, data) |
| 770 |
+ else: |
| 771 |
+ self.disconnect(quitmsg) |
| 772 |
+ |
| 773 |
+ def socket_writable_notification(self): |
| 774 |
+ try: |
| 775 |
+ print("socket_writable_notification: %s" % self.__writebuffer) |
| 776 |
+ sent = self.socket.send(self.__writebuffer) |
| 777 |
+ self.server.print_debug( |
| 778 |
+ "[%s:%d] <- %r" % ( |
| 779 |
+ self.host, self.port, self.__writebuffer[:sent])) |
| 780 |
+ self.__writebuffer = self.__writebuffer[sent:] |
| 781 |
+ except socket.error as x: |
| 782 |
+ self.disconnect(x) |
| 783 |
+ |
| 784 |
+ def disconnect(self, quitmsg): |
| 785 |
+ self.message("ERROR :%s" % quitmsg) |
| 786 |
+ self.server.print_info( |
| 787 |
+ "Disconnected connection from %s:%s (%s)." % ( |
| 788 |
+ self.host, self.port, quitmsg)) |
| 789 |
+ self.socket.close() |
| 790 |
+ self.server.remove_client(self, quitmsg) |
| 791 |
+ |
| 792 |
+ def message(self, msg): |
| 793 |
+ self.__writebuffer += msg + "\r\n" |
| 794 |
+ |
| 795 |
+ def reply(self, msg): |
| 796 |
+ self.message(":%s %s" % (self.server.name, msg)) |
| 797 |
+ |
| 798 |
+ def reply_403(self, channel): |
| 799 |
+ self.reply("403 %s %s :No such channel" % (self.nickname, channel)) |
| 800 |
+ |
| 801 |
+ def reply_461(self, command): |
| 802 |
+ nickname = self.nickname or "*" |
| 803 |
+ self.reply("461 %s %s :Not enough parameters" % (nickname, command)) |
| 804 |
+ |
| 805 |
+ def message_channel(self, channel, command, message, include_self=False): |
| 806 |
+ line = ":%s %s %s" % (self.prefix, command, message) |
| 807 |
+ for client in channel.members: |
| 808 |
+ if client != self or include_self: |
| 809 |
+ client.message(line) |
| 810 |
+ |
| 811 |
+ def channel_log(self, channel, message, meta=False): |
| 812 |
+ if not self.server.logdir: |
| 813 |
+ return |
| 814 |
+ if meta: |
| 815 |
+ format = "[%s] * %s %s\n" |
| 816 |
+ else: |
| 817 |
+ format = "[%s] <%s> %s\n" |
| 818 |
+ timestamp = datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S UTC") |
| 819 |
+ logname = channel.name.replace("_", "__").replace("/", "_") |
| 820 |
+ fp = open("%s/%s.log" % (self.server.logdir, logname), "a") |
| 821 |
+ fp.write(format % (timestamp, self.nickname, message)) |
| 822 |
+ fp.close() |
| 823 |
+ |
| 824 |
+ def message_related(self, msg, include_self=False): |
| 825 |
+ clients = set() |
| 826 |
+ if include_self: |
| 827 |
+ clients.add(self) |
| 828 |
+ for channel in self.channels.values(): |
| 829 |
+ clients |= channel.members |
| 830 |
+ if not include_self: |
| 831 |
+ clients.discard(self) |
| 832 |
+ for client in clients: |
| 833 |
+ client.message(msg) |
| 834 |
+ |
| 835 |
+ def send_lusers(self): |
| 836 |
+ self.reply("251 %s :There are %d users and 0 services on 1 server" |
| 837 |
+ % (self.nickname, len(self.server.clients))) |
| 838 |
+ |
| 839 |
+ def send_motd(self): |
| 840 |
+ server = self.server |
| 841 |
+ motdlines = server.get_motd_lines() |
| 842 |
+ if motdlines: |
| 843 |
+ self.reply("375 %s :- %s Message of the day -" |
| 844 |
+ % (self.nickname, server.name)) |
| 845 |
+ for line in motdlines: |
| 846 |
+ self.reply("372 %s :- %s" % (self.nickname, line.rstrip())) |
| 847 |
+ self.reply("376 %s :End of /MOTD command" % self.nickname) |
| 848 |
+ else: |
| 849 |
+ self.reply("422 %s :MOTD File is missing" % self.nickname) |
| 850 |
diff --git a/lib/funcs.py b/lib/funcs.py |
| 851 |
new file mode 100644 |
| 852 |
index 0000000..4093964 |
| 853 |
--- /dev/null |
| 854 |
+++ b/lib/funcs.py |
| 855 |
@@ -0,0 +1,11 @@ |
| 856 |
+import sys |
| 857 |
+import string |
| 858 |
+ |
| 859 |
+_maketrans = str.maketrans if sys.version_info[0] == 3 else string.maketrans |
| 860 |
+_ircstring_translation = _maketrans( |
| 861 |
+ string.ascii_lowercase.upper() + "[]\\^", |
| 862 |
+ string.ascii_lowercase + "{}|~") |
| 863 |
+ |
| 864 |
+def irc_lower(s): |
| 865 |
+ return string.translate(s, _ircstring_translation) |
| 866 |
+ |
| 867 |
diff --git a/lib/infosec.py b/lib/infosec.py |
| 868 |
new file mode 100644 |
| 869 |
index 0000000..6e87ca6 |
| 870 |
--- /dev/null |
| 871 |
+++ b/lib/infosec.py |
| 872 |
@@ -0,0 +1,29 @@ |
| 873 |
+import hashlib |
| 874 |
+PACKET_SIZE = 1024 |
| 875 |
+MAX_MESSAGE_SIZE = 512 |
| 876 |
+ |
| 877 |
+class Infosec(object): |
| 878 |
+ #def __init__(self): |
| 879 |
+ # do nothing |
| 880 |
+ |
| 881 |
+ def pack(self, message): |
| 882 |
+ digest = hashlib.sha512(self._pad(message)).hexdigest() |
| 883 |
+ return digest + message |
| 884 |
+ |
| 885 |
+ def unpack(self, package): |
| 886 |
+ print("received package: %s" % package) |
| 887 |
+ received_digest = package[0:128] |
| 888 |
+ message = package[128:1023] |
| 889 |
+ digest = hashlib.sha512(self._pad(message)).hexdigest() |
| 890 |
+ print("received_digest: %s" % received_digest) |
| 891 |
+ print("digest: %s" % digest) |
| 892 |
+ print("message: %s") % message |
| 893 |
+ if(received_digest == digest): |
| 894 |
+ return message |
| 895 |
+ else: |
| 896 |
+ print("unable to validate package: %s" % package) |
| 897 |
+ return None |
| 898 |
+ |
| 899 |
+ def _pad(self, text): |
| 900 |
+ return str(text.ljust(MAX_MESSAGE_SIZE)).encode("ascii") |
| 901 |
+ |
| 902 |
diff --git a/lib/peer.py b/lib/peer.py |
| 903 |
new file mode 100644 |
| 904 |
index 0000000..4a64ed7 |
| 905 |
--- /dev/null |
| 906 |
+++ b/lib/peer.py |
| 907 |
@@ -0,0 +1,13 @@ |
| 908 |
+import socket |
| 909 |
+from infosec import Infosec |
| 910 |
+ |
| 911 |
+class Peer(object): |
| 912 |
+ def __init__(self, address): |
| 913 |
+ self.address = address |
| 914 |
+ self.socket = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM) |
| 915 |
+ self.infosec = Infosec() |
| 916 |
+ |
| 917 |
+ def send(self, client, msg): |
| 918 |
+ full_message = str.encode(":%s %s" % (client.nickname, msg)) |
| 919 |
+ print("sending formatted_msg: %s" % full_message) |
| 920 |
+ self.socket.sendto(self.infosec.pack(full_message), (self.address, 7778)) |
| 921 |
diff --git a/lib/server.py b/lib/server.py |
| 922 |
new file mode 100644 |
| 923 |
index 0000000..38bf514 |
| 924 |
--- /dev/null |
| 925 |
+++ b/lib/server.py |
| 926 |
@@ -0,0 +1,208 @@ |
| 927 |
+VERSION = "9999" |
| 928 |
+ |
| 929 |
+import os |
| 930 |
+import select |
| 931 |
+import socket |
| 932 |
+import sys |
| 933 |
+import sys |
| 934 |
+import tempfile |
| 935 |
+import time |
| 936 |
+import string |
| 937 |
+from datetime import datetime |
| 938 |
+from lib.client import Client |
| 939 |
+from lib.channel import Channel |
| 940 |
+from lib.infosec import PACKET_SIZE |
| 941 |
+from lib.infosec import Infosec |
| 942 |
+from lib.peer import Peer |
| 943 |
+from funcs import * |
| 944 |
+ |
| 945 |
+class Server(object): |
| 946 |
+ def __init__(self, options): |
| 947 |
+ self.ports = options.ports |
| 948 |
+ self.peers = options.peers |
| 949 |
+ self.udp_port = options.udp_port |
| 950 |
+ self.password = options.password |
| 951 |
+ self.ssl_pem_file = options.ssl_pem_file |
| 952 |
+ self.motdfile = options.motd |
| 953 |
+ self.verbose = options.verbose |
| 954 |
+ self.debug = options.debug |
| 955 |
+ self.logdir = options.logdir |
| 956 |
+ self.chroot = options.chroot |
| 957 |
+ self.setuid = options.setuid |
| 958 |
+ self.statedir = options.statedir |
| 959 |
+ |
| 960 |
+ if options.listen: |
| 961 |
+ self.address = socket.gethostbyname(options.listen) |
| 962 |
+ else: |
| 963 |
+ self.address = "" |
| 964 |
+ server_name_limit = 63 # From the RFC. |
| 965 |
+ self.name = socket.getfqdn(self.address)[:server_name_limit] |
| 966 |
+ |
| 967 |
+ self.channels = {} # irc_lower(Channel name) --> Channel instance. |
| 968 |
+ self.clients = {} # Socket --> Client instance..peers = "" |
| 969 |
+ self.nicknames = {} # irc_lower(Nickname) --> Client instance. |
| 970 |
+ if self.logdir: |
| 971 |
+ create_directory(self.logdir) |
| 972 |
+ if self.statedir: |
| 973 |
+ create_directory(self.statedir) |
| 974 |
+ |
| 975 |
+ def daemonize(self): |
| 976 |
+ try: |
| 977 |
+ pid = os.fork() |
| 978 |
+ if pid > 0: |
| 979 |
+ sys.exit(0) |
| 980 |
+ except OSError: |
| 981 |
+ sys.exit(1) |
| 982 |
+ os.setsid() |
| 983 |
+ try: |
| 984 |
+ pid = os.fork() |
| 985 |
+ if pid > 0: |
| 986 |
+ self.print_info("PID: %d" % pid) |
| 987 |
+ sys.exit(0) |
| 988 |
+ except OSError: |
| 989 |
+ sys.exit(1) |
| 990 |
+ os.chdir("/") |
| 991 |
+ os.umask(0) |
| 992 |
+ dev_null = open("/dev/null", "r+") |
| 993 |
+ os.dup2(dev_null.fileno(), sys.stdout.fileno()) |
| 994 |
+ os.dup2(dev_null.fileno(), sys.stderr.fileno()) |
| 995 |
+ os.dup2(dev_null.fileno(), sys.stdin.fileno()) |
| 996 |
+ |
| 997 |
+ def get_client(self, nickname): |
| 998 |
+ return self.nicknames.get(irc_lower(nickname)) |
| 999 |
+ |
| 1000 |
+ def has_channel(self, name): |
| 1001 |
+ return irc_lower(name) in self.channels |
| 1002 |
+ |
| 1003 |
+ def get_channel(self, channelname): |
| 1004 |
+ if irc_lower(channelname) in self.channels: |
| 1005 |
+ channel = self.channels[irc_lower(channelname)] |
| 1006 |
+ else: |
| 1007 |
+ channel = Channel(self, channelname) |
| 1008 |
+ self.channels[irc_lower(channelname)] = channel |
| 1009 |
+ return channel |
| 1010 |
+ |
| 1011 |
+ def get_motd_lines(self): |
| 1012 |
+ if self.motdfile: |
| 1013 |
+ try: |
| 1014 |
+ return open(self.motdfile).readlines() |
| 1015 |
+ except IOError: |
| 1016 |
+ return ["Could not read MOTD file %r." % self.motdfile] |
| 1017 |
+ else: |
| 1018 |
+ return [] |
| 1019 |
+ |
| 1020 |
+ def print_info(self, msg): |
| 1021 |
+ if self.verbose: |
| 1022 |
+ print(msg) |
| 1023 |
+ sys.stdout.flush() |
| 1024 |
+ |
| 1025 |
+ def print_debug(self, msg): |
| 1026 |
+ if self.debug: |
| 1027 |
+ print(msg) |
| 1028 |
+ sys.stdout.flush() |
| 1029 |
+ |
| 1030 |
+ def print_error(self, msg): |
| 1031 |
+ sys.stderr.write("%s\n" % msg) |
| 1032 |
+ |
| 1033 |
+ def client_changed_nickname(self, client, oldnickname): |
| 1034 |
+ if oldnickname: |
| 1035 |
+ del self.nicknames[irc_lower(oldnickname)] |
| 1036 |
+ self.nicknames[irc_lower(client.nickname)] = client |
| 1037 |
+ |
| 1038 |
+ def remove_member_from_channel(self, client, channelname): |
| 1039 |
+ if irc_lower(channelname) in self.channels: |
| 1040 |
+ channel = self.channels[irc_lower(channelname)] |
| 1041 |
+ channel.remove_client(client) |
| 1042 |
+ |
| 1043 |
+ def remove_client(self, client, quitmsg): |
| 1044 |
+ client.message_related(":%s QUIT :%s" % (client.prefix, quitmsg)) |
| 1045 |
+ for x in client.channels.values(): |
| 1046 |
+ client.channel_log(x, "quit (%s)" % quitmsg, meta=True) |
| 1047 |
+ x.remove_client(client) |
| 1048 |
+ if client.nickname \ |
| 1049 |
+ and irc_lower(client.nickname) in self.nicknames: |
| 1050 |
+ del self.nicknames[irc_lower(client.nickname)] |
| 1051 |
+ del self.clients[client.socket] |
| 1052 |
+ |
| 1053 |
+ def remove_channel(self, channel): |
| 1054 |
+ del self.channels[irc_lower(channel.name)] |
| 1055 |
+ |
| 1056 |
+ def start(self): |
| 1057 |
+ # Setup UDP first |
| 1058 |
+ udp_server_socket = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM) |
| 1059 |
+ udp_server_socket.bind((self.address, self.udp_port)) |
| 1060 |
+ |
| 1061 |
+ serversockets = [] |
| 1062 |
+ for port in self.ports: |
| 1063 |
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| 1064 |
+ s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) |
| 1065 |
+ try: |
| 1066 |
+ s.bind((self.address, port)) |
| 1067 |
+ except socket.error as e: |
| 1068 |
+ self.print_error("Could not bind port %s: %s." % (port, e)) |
| 1069 |
+ sys.exit(1) |
| 1070 |
+ s.listen(5) |
| 1071 |
+ serversockets.append(s) |
| 1072 |
+ del s |
| 1073 |
+ self.print_info("Listening on port %d." % port) |
| 1074 |
+ if self.chroot: |
| 1075 |
+ os.chdir(self.chroot) |
| 1076 |
+ os.chroot(self.chroot) |
| 1077 |
+ self.print_info("Changed root directory to %s" % self.chroot) |
| 1078 |
+ if self.setuid: |
| 1079 |
+ os.setgid(self.setuid[1]) |
| 1080 |
+ os.setuid(self.setuid[0]) |
| 1081 |
+ self.print_info("Setting uid:gid to %s:%s" |
| 1082 |
+ % (self.setuid[0], self.setuid[1])) |
| 1083 |
+ last_aliveness_check = time.time() |
| 1084 |
+ while True: |
| 1085 |
+ (inputready,outputready,exceptready) = select.select([udp_server_socket],[],[],0) |
| 1086 |
+ (iwtd, owtd, ewtd) = select.select( |
| 1087 |
+ serversockets + [x.socket for x in self.clients.values()], |
| 1088 |
+ [x.socket for x in self.clients.values() |
| 1089 |
+ if x.write_queue_size() > 0], |
| 1090 |
+ [], |
| 1091 |
+ 0) |
| 1092 |
+ for x in inputready: |
| 1093 |
+ if x == udp_server_socket: |
| 1094 |
+ bytes_address_pair = udp_server_socket.recvfrom(PACKET_SIZE) |
| 1095 |
+ message = bytes_address_pair[0] |
| 1096 |
+ address = bytes_address_pair[1] |
| 1097 |
+ print message |
| 1098 |
+ for c in self.clients: |
| 1099 |
+ self.clients[c].udp_data_received(message) |
| 1100 |
+ for x in iwtd: |
| 1101 |
+ if x in self.clients: |
| 1102 |
+ self.clients[x].socket_readable_notification() |
| 1103 |
+ else: |
| 1104 |
+ (conn, addr) = x.accept() |
| 1105 |
+ if self.ssl_pem_file: |
| 1106 |
+ import ssl |
| 1107 |
+ try: |
| 1108 |
+ conn = ssl.wrap_socket( |
| 1109 |
+ conn, |
| 1110 |
+ server_side=True, |
| 1111 |
+ certfile=self.ssl_pem_file, |
| 1112 |
+ keyfile=self.ssl_pem_file) |
| 1113 |
+ except ssl.SSLError as e: |
| 1114 |
+ self.print_error( |
| 1115 |
+ "SSL error for connection from %s:%s: %s" % ( |
| 1116 |
+ addr[0], addr[1], e)) |
| 1117 |
+ continue |
| 1118 |
+ self.clients[conn] = Client(self, conn) |
| 1119 |
+ self.print_info("Accepted connection from %s:%s." % ( |
| 1120 |
+ addr[0], addr[1])) |
| 1121 |
+ for x in owtd: |
| 1122 |
+ if x in self.clients: # client may have been disconnected |
| 1123 |
+ self.clients[x].socket_writable_notification() |
| 1124 |
+ now = time.time() |
| 1125 |
+ if last_aliveness_check + 10 < now: |
| 1126 |
+ for client in self.clients.values(): |
| 1127 |
+ client.check_aliveness() |
| 1128 |
+ last_aliveness_check = now |
| 1129 |
+ |
| 1130 |
+ |
| 1131 |
+def create_directory(path): |
| 1132 |
+ if not os.path.isdir(path): |
| 1133 |
+ os.makedirs(path) |
| 1134 |
+ |
| 1135 |
|
& 0xff) << 16) | \