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Commit Graph

2126 Commits

Author SHA1 Message Date
Bram Matthys e126d924a5 Somehow DEBUGMODE was turned on by last commit, now off again by default. 2021-06-02 19:31:05 +02:00
Bram Matthys 40bc3ef8cc Bump version to 5.2.0-git. This is still work in progress.
Note that we are on the 'unreal52' branch now and have left 'unreal50'
2021-06-02 15:27:14 +02:00
Bram Matthys 3eb0bc24ea Add log::flags "flood" to log flood messages 2021-05-30 19:30:36 +02:00
Bram Matthys f8a732747b Get rid of mempool LOG_DBG which is never used 2021-05-30 19:27:35 +02:00
Bram Matthys 5acef88ceb All violatons of target-flood, nick-flood, join-flood, away-flood,
invite-flood, knock-flood, max-concurrent-conversations are now
reported to opers with the snomask 'f' (flood).
2021-05-30 19:10:18 +02:00
Bram Matthys 6f92233919 The set:anti-flood block has been redone so you can have different limits
for "unknown-users" and "known-users".
As a reminder, by default, "known-users" are users who are identified
to services OR are on an IP that has been connected for over 2 hours
in the past X days.
See https://www.unrealircd.org/docs/FAQ#new-anti-flood-block
for more information on the layout of the new block.

NOTE: This actual feature, the relase notes and the documentation
      are all work in progress.
2021-05-30 18:45:27 +02:00
Bram Matthys 36b9faa7cd Code cleanup: move flood control to generic system 2021-05-28 17:59:39 +02:00
Bram Matthys 191990b881 Code cleanup: at some places "ClientUser" was used instead of "User". 2021-05-28 15:26:58 +02:00
Bram Matthys da519ae04a Get rid of duplicate checks for anti-flood.
Sorry this is too much effort and i think admins should be smart
enough to figure this out themselves.
2021-05-28 14:52:09 +02:00
Bram Matthys 845a582d76 Add support for +draft/reply and load the module by default.
See https://ircv3.net/specs/client-tags/reply for the draft.

Can be used by clients to indicate to which message they are writing
a reply. This can be especially useful for bots, to indicate that
a response belongs to a user request, eg a !trigger.
2021-05-28 09:14:40 +02:00
Bram Matthys a85a38e69d Add the ability to SPAMFILTER message-tags.
The new target type is called 'T' and we match against "name=value"
of each message tag (or just "name" if it is without value).

Example: SPAMFILTER ADD -simple T kill 0 this_is_a_test +typing=active
(No this is not a suggestion :D)

This probably won't be used much at all, but it is good to have the
option available in case there is some massive problem,
especially since more message tags may pop up sooner or later.

Caveat: this is actually a bit slow as we may have to check multiple
message tags for a single line.
If there are zero message-tag spamfilters then we will automatically
short-circuit and save all this CPU, which will be the most common case.
2021-05-25 20:31:10 +02:00
Bram Matthys 872aa93635 Move some string helpers to src/misc.c
skip_whitespace() and read_until()
2021-05-24 18:32:57 +02:00
Bram Matthys 3ad6878865 Set new maximums for channel mode +H. If the channel is +r then the maximum
is now 5000 lines / 31 days. For unregistered it is 200 lines / 31 days.
Previous setting was 200 lines / 7 days for both.

Admins can tweak these settings, see:
https://www.unrealircd.org/docs/Set_block#set::history

More code to deal with corner issues will follow later.

UnrealIRCd module coders [!]:
This also changes the channel mode API conv_param. You can use
the UNREAL_VERSION_TIME >= 202120 condition to detect this.
Eg:
 #if UNREAL_VERSION_TIME < 202120
 int my_conv_param(char *para, Client *client);
 #else
 int my_conv_param(char *para, Client *client, Channel *channel);
 #endif
2021-05-22 18:15:26 +02:00
Bram Matthys cda145b62a Add initial version of CHATHISTORY command
from https://ircv3.net/specs/extensions/chathistory

Current status of the module in UnrealIRCd:
* A significant part of this is done and working
* Currently in modules.optional.conf to get test exposure,
  not yet loaded by default.
* CHATHISTORY subcommands implemented: BEFORE, AFTER, LATEST, AROUND
* It does not implement the subcommand "BETWEEN" yet
* It does not announce or recognize the (draft) CAP's yet
* It does not announce the ISUPPORT token CHATHISTORY=xx yet
* Testcases need to be written to validate everything
* There will be bugs, now, and also while implementing the rest
  in the days to come.
2021-05-19 16:19:41 +02:00
Bram Matthys c79cc6f430 Add ModuleSetOptions(modinfo->handle, MOD_OPT_UNLOAD_PRIORITY, priority);
so modules can indicate if they wish to be unloaded before or after others.
This is used by the channel and history modules so they can save their
databases before the chanmodes modules are unloaded.

Also, made ModuleSetOptions() a void function. I don't think anyone
used the returned value and it now no longer is strictly bitmask add/del
so returning an unsigned int would be a tad confusing.
2021-05-17 11:43:46 +02:00
Bram Matthys 74083d7440 In AddListItemPrio() explicitly set item->priority to prio. 2021-05-17 11:39:45 +02:00
Bram Matthys d7bf35e0d9 Set loop.ircd_terminating when IRCd is terminating (signal 15, /DIE, etc) 2021-05-17 11:08:54 +02:00
Bram Matthys 13f9afeaf4 Add sha256hash() function for convenience. 2021-05-15 20:48:04 +02:00
Bram Matthys 1752afee44 Move running_interactively() from crashreport.c to misc.c 2021-05-15 18:28:21 +02:00
Bram Matthys 95cfafcd51 Include dirent.h by default. 2021-05-15 15:42:34 +02:00
Bram Matthys 73ae7ccbef Mod API: Add CONFIG_SET_HISTORY_CHANNEL so chanmodes/history
can delegate configuration to history_backend_mem.
2021-05-15 15:41:02 +02:00
Bram Matthys ff84f17f72 Move strtolower_safe() from antirandom to support.c 2021-05-15 15:38:57 +02:00
Bram Matthys 8783280a68 Make UnrealDB big-endian-proof. Rather rare, but you never know
on what hardware people end up running UnrealIRCd.

Also (unrelated) add a check for >64kb strings in unrealdb_write_str()
and return an API error. That too is unlikely to ever happen, but..
better be correct.
2021-05-05 19:04:11 +02:00
Bram Matthys deffc908e3 Document UnrealDB API and get rid of unrealdb_write_data/unrealdb_read_data.
API users must use specific size/type functions instead, otherwise it is
simply too dangerous / too easy to overlook issues.
2021-05-04 11:03:48 +02:00
Bram Matthys 1606f28555 Add unrealdb_write_char() / unrealdb_read_char() 2021-05-03 17:48:23 +02:00
Bram Matthys eb4d7fb3f0 Set version to 5.0.10-git with disclaimer not to use it yet. 2021-05-03 15:27:30 +02:00
Bram Matthys dde3e0ccb2 Add unrealdb and secrets API. Documentation and more information will
follow in later commits.
2021-05-03 15:07:10 +02:00
Bram Matthys d6b0981433 Module coders: Update HOOKTYPE_LOCAL_NICKCHANGE and HOOKTYPE_REMOTE_NICKCHANGE.
I forgot to include message tags earlier, so this is a breaking change:
-int hooktype_local_nickchange(Client *client, char *newnick);
-int hooktype_remote_nickchange(Client *client, char *newnick);
+int hooktype_local_nickchange(Client *client, MessageTag *mtags, char *newnick);
+int hooktype_remote_nickchange(Client *client, MessageTag *mtags, char *newnick);

Be sure to update your hooks!
You can use something like: #if UNREAL_VERSION_TIME>=202115
2021-04-17 10:38:25 +02:00
Bram Matthys 5daf7e7ebe Compile with system libsodium, fallback to shipped version.
This library provides easy to use functions for encryption/decryption
among other things. There is some overlap with things that
OpenSSL also provides but not all.
2021-04-09 13:44:31 +02:00
Bram Matthys e596b730af Move channel history sending from one layer to the other.
This so for example history_backend_mem() does not do any sending.
Less efficient but needed for later when things get more complex.
2021-04-07 09:42:18 +02:00
Bram Matthys e31755bc7c *** UnrealIRCd 5.0.9.1 *** (faster build, lower memory requirements during build)
Note: the only change between 5.0.9 and 5.0.9.1 is:
* Build improvements on *NIX (faster compiling and lower memory requirements)
* Windows version is unchanged and still 5.0.9
2021-03-26 08:30:21 +01:00
Bram Matthys 80fbef8b5c *** UnrealIRCd 5.0.9 *** 2021-03-19 20:08:21 +01:00
Bram Matthys 022ed9ae71 Remove explicit setting of send/receive buffer as modern OSs don't
need this and it slows things down for servers.

For clients it's not much of an issue, since traffic rates are low.

However, for server-to-server links it is an entirely different matter.
It is (only) noticeable if you have lots of traffic, such as when there
is a lot to sync while linking two servers, and especially when the two
servers are geographically further apart.
Tested with 100,000 G-lines on both sides being synced (20MB traffic):
* 20ms RTT (same country/state): speed up of x3
* 200ms RTT (transpacific): speed up of x6
2021-03-14 16:04:43 +01:00
Bram Matthys 6761cdd66d UnrealIRCd 5.0.9-rc1 2021-03-12 17:50:52 +01:00
Bram Matthys 2765eaac26 Add find_nvplist() 2021-03-10 17:24:38 +01:00
Bram Matthys 1f47cc7824 Support for dated log files such as log "ircd.%Y-%m-%d.log" { }
Suggested by Amiga600 in https://bugs.unrealircd.org/view.php?id=5784

This also fixes a bug with log::maxsize on Windows (cannot overwrite
existing file with .old).

It simplifies the logging code a little and makes it a tad more readable.

And it adds an unreal_strftime() function to make things easy.
2021-03-08 10:37:28 +01:00
Bram Matthys 636b068062 New option allow::global-maxperip, defaults to allow::maxperip+1.
Suggested by Jobe and PeGaSuS in https://bugs.unrealircd.org/view.php?id=5802
2021-03-07 11:30:02 +01:00
Bram Matthys dc40d27cd8 Move set::anti-flood::unknown-flood-* to set::anti-flood::handshake-data-flood
which is a new block, documented at:
https://www.unrealircd.org/docs/Set_block#set::anti-flood::handshake-data-flood
The reason for this is better naming and allowing to tweak ban-action.
2021-02-28 07:52:33 +01:00
Bram Matthys c71214cefe Rename nvplist functions to match the rest, fix resource leak,
and move the functions to list.c where they belong.
nvplist_add()		-> add_nvplist()
nvplist_add_fmt()	-> add_fmt_nvplist()
(new)			-> free_nvplist
2021-02-02 18:39:17 +01:00
Bram Matthys d4e0ee9431 *NIX: Bump default MAXCONNECTIONS from 8192 to 16384.
That is, when in "auto" mode, which is like for 99% of the users.
NOTE: the sytem may still limit the actual number of FD's to
a lower value, depending on the value of "ulimit -n -H".
2021-02-01 13:27:08 +01:00
Bram Matthys 1baf5f9f7d Show reputation score and some other info in "Client connecting"
notices to IRCOps and in ircd.log.
See the release notes for more details.

Module coders:
You can use HOOKTYPE_CONNECT_EXTINFO to add your own additional
information as well. See get_connect_extinfo() for inspiration.
Use nvplist_add() or nvplist_add_fmt() to easily add your info
to the list.

Module coders II:
Small note: this moves the sending of the far connect notice
to /under/ HOOKTYPE_REMOTE_CONNECT instead of /above/.
2021-01-31 18:30:49 +01:00
Bram Matthys 82da314cf4 Dev docs: document svid better
[skip ci]
2021-01-29 19:12:51 +01:00
Bram Matthys 9204939a7f Windows: improve logging on-boot, especially when running as a service.
When booting no log files are open yet as we have not parsed any log { }
entries yet. On *NIX we log to stderr during that stage.
On Windows it varies: when running in GUI mode we save the log to a
buffer and display it after booting in a dialog.
When running as a service on Windows we previously wrote SOME entries
to service.log, but other entries were not logged or shown anywhere.

This makes both GUI and Service-mode on windows log all ircd_log()
calls with LOG_ERROR, instead of only config_status(), config_warn()
and config_error() messages.

This also removes config_progress() which isn't used by anything.

Oh, and it also fixes a memory leak in the Windows boot code, a leak
that nobody would have noticed anyway, but still.
2021-01-23 12:22:48 +01:00
Bram Matthys 3a922d6ed5 Disable handshake delay for users that are exempt from blacklist checking.
The handshake delay exists so results from DNSBL's can be checked before
the user is fully online. Whenever someone is exempt from DNSBL checking
it serves no purpose, so we mark it that the user has no handshake delay.
This will speed up connecting by up to 2 seconds (by default).
Also updated WebIRC example to suggest this now:
https://www.unrealircd.org/docs/WebIRC_block#UnrealIRCd-side
2021-01-17 08:25:14 +01:00
Bram Matthys f03f5bd974 Bump version to 5.0.9-git 2021-01-10 07:45:44 +01:00
Bram Matthys 380e039d95 *** UnrealIRCd 5.0.8 *** 2021-01-08 15:32:55 +01:00
Bram Matthys fa15ec1bec Add default security-group "tls-users" and "tls-and-known-users" 2021-01-01 18:42:27 +01:00
Bram Matthys 99defea611 ** UnrealIRCd 5.0.8-rc1 ** 2020-12-30 14:14:33 +01:00
Bram Matthys 53d23038e5 Support for security groups and new +b ~G:unknown-users:
* There are two security groups by default: known-users and unknown-users.
  See https://www.unrealircd.org/docs/Security-group_block
* New extended ban ~G:securitygroupname, with the typical usage being
  MODE #chan +b ~G:unknown-users, which will ban all users from the
  channel that are not identified to services and have a reputation
  score below 25.
2020-12-30 12:42:56 +01:00
Bram Matthys 4b53b02299 Add set::max-stats-matches which limits output such as '/STATS gline'
to the specified number of lines. This defaults to 1000.
This will prevent IRCOps from being flooded off ("Max SendQ exceeded")
if they list all *LINES and there are thousands.
In the newly introduced error message, after too many matches,
we also kindly point out to use filters like '/STATS gline +m *.nl'
2020-12-06 15:50:28 +01:00