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Commit Graph

46 Commits

Author SHA1 Message Date
Bram Matthys 50c3ed2c24 Add unrealircd.org/issued-by if using RPC call channel.set_mode
This also changes the set_channel_mode() function to have
an extra arguments MessageTag *mtags (2nd parameter).
2023-04-02 12:06:52 +02:00
Bram Matthys 78ce692357 Move ban_exists() to the core (was a helper function in channeldb) 2023-03-25 10:38:05 +01:00
Bram Matthys c3824ad47d Fix potentially sending invalid data over websockets on REHASH.
This makes websocket_common unload last (and near-last: rpc & websocket)
and makes us call Mod_Init for these three modules first.
This way, the period where the websocket handler is unavailable is kept
to a minimum.

This also renames the ModuleSetOptions option MOD_OPT_UNLOAD_PRIORITY
to MOD_OPT_PRIORITY since it dynamically changes the module priority
in the list. For 6.x compatibility, MOD_OPT_UNLOAD_PRIORITY can still
be used.
2022-11-04 10:54:53 +01:00
Bram Matthys b154591a58 Some source files indicated the license was "GPLv2", which was meant to
be (and is now clarified to be) "GPLv2 or later".
Reported by libsys in https://bugs.unrealircd.org/view.php?id=6099
2022-05-11 06:41:11 +02:00
Bram Matthys 3451919b06 Fix issue with duplicate entries in the +b/+e/+I list of +P channels.
This was caused by the transition from letter extbans (eg ~a) to
named extbans (eg ~account) and a combination of the bug fix in 6.0.2
(60a70acd86) and the 'channeldb' module
not checking for duplicates while reading the database.

Reported by PeGaSuS in https://bugs.unrealircd.org/view.php?id=6091
2022-04-18 08:51:23 +02:00
Bram Matthys 60a70acd86 channeldb: convert letter extbans to named extbans (.db for +P channels) 2022-01-07 12:10:10 +01:00
Bram Matthys b078a9c8b5 Fix cut-off and expansion issues with MODE, which is a possible problem when
using mixed UnrealIRCd 5 and UnrealIRCd 6 networks.

This is a slightly complex rewrite of make_mode_str() and do_mode(),
as we nog go from single mode lines to potentially multiple mode lines.

In short: whenever we would be near buffer cut-off point (the famous
512 byte limit) then previously we would prevent the mode, though not
succesfully in all cases where a network consists of mixed 5.x and 6.x.
From this point onward we no longer do that. Instead we convert one
MODE command to two MODE lines if that is needed.
The benefit of this is that we no longer prevent it BEFORE processing
the MODE, which is a flawed method and could be wrong (causing desyncs).
And also, we no longer partially ignore MODE lines from clients when
they would cause the limit to be exceeded, as we replace them with
two MODE lines instead.

These are more changes than I wanted at such a late point but.. they seem
to be necessary to prevent U5-U6 compatibility issues.
2021-11-19 13:53:21 +01:00
Bram Matthys e4b449adf8 Add set_channel_mode() which can be used to issue a server mode.
It's usage would be rare, but this is f.e. used from channeldb.
Other uses may be in some 3rd party module.
Example: set_channel_mode(channel, "+k", "key")
2021-09-25 17:42:21 +02:00
Bram Matthys 8353a9e17b Change char *parv[] to const char *parv[] everywhere. This is a BIG change.
It means you can no longer modify eg parv[1] in-place with strtoken and such.

The main reason for this is that as a command handler you have no idea
where the arguments may come from. It could be from a do_cmd() with
read-only storage (eg a string literal) and so on.

It started with an experiment of how far I could get and how annoying the
side-effects would be, but they seem to be quite managable, so I'm
committing this stuff.

Hopefully this catches/solves some stupid bugs somewhere :)
2021-09-11 16:02:44 +02:00
Bram Matthys 5dc6411419 Const const const. This completes the work in h.h. 2021-09-11 10:21:54 +02:00
Bram Matthys 675c1cab55 Rename loop struct members:
* loop.ircd_rehashing -> loop.rehashing
* loop.ircd_terminating -> loop.terminating
* loop.ircd_booted -> loop.booted
* loop.ircd_forked -> loop.forked
2021-08-18 13:08:42 +02:00
Bram Matthys 9efe590a8e Newlog and fishy timestamp handling:
* New macro IsInvalidChannelTS() which evaluates to ts < 750000
* Check for faulty creation time ("fishy timestamp") at ALL places
  where channel->creationtime is set.
* Also, important, changed behavior:
  if !IsInvalidChannelTS then:
  1) We print our warning
  2) We pretend ts is our channel creationtime (which may be
     TStime() if the channel did not previously exist)
  3) We allow the command through and allow it to merge (in case of SJOIN)

This makes it so we still log the error (noisy) but on the other hand
we won't get "infected" by fishy timestamps since we will never set
them, no matter what happens.
2021-08-11 15:29:45 +02:00
Bram Matthys 9db40cd4a0 Newlog: update channeldb, reputation, tkldb 2021-08-11 08:24:12 +02:00
Bram Matthys 4e5dd044f5 Require module header with version "unrealircd-6" now 2021-08-10 14:37:10 +02:00
Bram Matthys c22207c4ca Drop cf_ prefix from ConfigFile and ce_ prefix from ConfigEntry structs.
Also rename them to describe better what they do.

ConfigFile:
cf_filename -> filename
cf_next -> next
cf_entries -> items

ConfigEntry:
ce_fileptr -> file
ce_varlinenum -> line_number
ce_fileposstart -> file_position_start
ce_fileposend -> file_position_end
ce_sectlinenum -> section_linenumber
ce_varname -> name
ce_vardata -> value
ce_cond -> conditional_config
ce_entries -> items
ce_next -> next
ce_prevlevel -> parent

Also add doxygen docs for both structs.
2021-08-06 17:50:45 +02:00
Bram Matthys 4a72b8f519 Remove unnecessary debugging/benchmark info from eos, channeldb, reputation, tkldb 2021-08-06 10:32:42 +02:00
Bram Matthys 8dd6640bf5 Rename get_channel() to make_channel() to match make_user() and
change some more calls to make_channel() to use find_channel().
Also make it take 1 argument instead of 3.

Needed to be careful in sjoin code since the previous code set
channel->creationtime to 0 if client was a remote. Now merged
a few if's into one. Should be correct :D.
2021-08-05 16:55:28 +02:00
Bram Matthys 6bad375ad7 Rename channel->chname to channel->name. 2021-08-05 16:34:45 +02:00
Bram Matthys 52297e24b6 Don't send "local" channel modes to remote servers.
They were already ignored in MODE by remote UnrealIRCd servers,
but this makes it so local modes (+Z and +d at the moment)
are not sent across the wire.

This also changes the channel_modes() function to have an additional
'hide_local_modes' argument. Set this to 1 if you are building a
buffer that will be sent to remote servers, otherwise use 0,
which is far more common.

Also, this will skip saving of local channel modes to channeldb
since all of these are temporary, or at the moment anyway.

Thanks to alice for reporting this bug and providing a good test
case to help fix this issue and the previous ones.
2021-06-19 17:25:26 +02:00
Bram Matthys 8c71cd1a65 * Make channeldb write the db on terminate
* Fix channel history issues with writing on terminate
* Change tkldb and reputation to only write the db
  on terminate and not on every REHASH anymore

..all this thanks to the new loop.ircd_terminating, so modules can
see the difference between regular rehash and terminating.
2021-05-17 11:49:28 +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 30d64f2ebe Use UnrealDB functions in channeldb. 2021-05-03 15:15:25 +02:00
Bram Matthys 17bdd6de1e Use different temporary filename. Not really important normally but
if running multiple ircds from the same directory you sometimes get
weird messages otherwise (not that we really support such a thing
but i use it while dev'ing).
2021-03-06 18:55:10 +01:00
Bram Matthys f1e3b7dcdf Tweak channeldb saving to be further apart from tkldb saving. 2021-02-11 08:02:58 +01:00
Bram Matthys 8d2e05f5ef Fix crash when combining +P with a 3rd party module, or actually
any parameter channel mode module loaded after channeldb.
Reported by GaMbiTo, with help from PeGaSuS, Gottem and k4be
in https://bugs.unrealircd.org/view.php?id=5669

It is not safe to call channel mode parameter functions when
unloading modules. Makes sense I think.

We now no longer write the db on rehash, which is something i
didn't like anyway (wasted CPU cycles). The problem was that
one could not just scratch the write db call, as otherwise if
someone rehashes every minute would cause the db never to
be saved. This is because on each rehash the event to write
the db gets rescheduled to +5 minutes in the future.
We now work around that in the same way as connthrottle does.
Obviously it would be better to make the event system itself
deal with this, but that is (way) too much for now.
2020-05-09 11:58:26 +02:00
Bram Matthys afb10be770 Channeldb was not properly restoring all channel modes, such as +P,
after a restart. Possibly depending on the module load order.
2020-03-29 08:42:08 +02:00
Bram Matthys 63cf5e3d52 Make channeldb/tkldb write errors more uniform.
Use local macro and sendto_realops_and_log()
2020-01-29 09:28:43 +01:00
Bram Matthys 3a4d2d907a Fix tkldb/channeldb causing a 'File exists' error every 5 minutes. 2019-12-11 13:10:26 +01:00
Bram Matthys 0899a734c0 Fix LINKS not showing ourselves. 2019-11-15 09:24:38 +01:00
Bram Matthys 798f502875 Mass change (at least this one could be fully automated): 'chptr' -> 'channel'
to be consistent with the 'sptr' -> 'client' rename earlier.
2019-10-05 08:49:10 +02:00
Bram Matthys c2d7da6e35 Rename channel list to 'channels', for next commit. 2019-10-05 08:47:24 +02:00
Bram Matthys 4ac8015f84 Remove 'cptr' from all commands, hooks, etc. It only confuses people and
'sptr' is sufficient and in most cases the only one you should care about.
Should you need it, you can access sptr->direction in cases where you
need the old information (usually only for some sendto_* functions
and some protoctl checks), so 'cptr' was redundant too.

[!] This change likely introduces some bugs. This was many hours of work.
I only cut some corners in 4 functions, which will be fixed at a later
stage..... yes, more major changes to come.

On the plus side, I likely fixed some bugs in the process. Situations
where cptr vs sptr usage was incorrect. Eg using cptr->name (near server)
when sptr->name should be used (the actual source server), etc....
2019-10-02 14:25:40 +02:00
Bram Matthys 5b8f393a8f * EventAdd() changed the order of parameters and expects every_msec now
which specifies the time in milliseconds rather than seconds. This
  allows for additional precision, or at least multiple calls per second.
  The minimum allowed every_msec value is 100 at this time.
  The prototype is now: EventAdd(Module *module, char *name,
  vFP event, void *data, long every_msec, int count);
2019-09-22 15:05:00 +02:00
Bram Matthys 9fc1e758ab Mass change of dst = strdup(str) to safe_strdup(dst,str) but with a manual
audit since 'dst' must now be initialized memory.
There's still a raw_strdup() if you insist.

This is step 2 of X of memory allocation changes
2019-09-14 16:58:01 +02:00
Bram Matthys de87b439b7 Update memory allocation routines. Step 1 of X. 2019-09-14 16:52:53 +02:00
Bram Matthys bb1bb35f50 MOD_LOAD(xyz) is now just MOD_LOAD(), same for MOD_TEST, MOD_INIT,
MOD_UNLOAD. And MOD_HEADER(xyz) is now MOD_HEADER even without ()
since this isn't a function, really.
To make things understandable I added the following to the
developer section of the release notes:

* The module header is now as follows:
  ModuleHeader MOD_HEADER
    = {
          "nameofmodule",
          "5.0",
          "Some description",
          "Name of Author",
          "unrealircd-5",
      };
  There's a new author field, the version must start with a digit,
  and also the name of the module must match the loadmodule name.
  So for example third/funmod must also be named third/funmod.
* The MOD_TEST, MOD_INIT, MOD_LOAD and MOD_UNLOAD functions no longer
  take a name argument. So: MOD_INIT(mymod) is now MOD_INIT()
2019-09-13 15:27:40 +02:00
Bram Matthys 70410b3f33 Remove unused variables (67 files done, will do rest another time). 2019-09-12 17:57:01 +02:00
Bram Matthys 2df5326615 Overhaul of all client flag macros (mass renaming, always use getters/setters/checkers) 2019-09-11 16:00:47 +02:00
Bram Matthys 23116d344a Give structs the same name as the typedefs. Rename aClient to Client,
aChannel to Channel, and some more. Third party module coders will
love this. But.. it makes things more logical and the doxygen output
will look more clean and logical as well.
(More changes will follow)
2019-09-11 09:48:00 +02:00
Bram Matthys 4a6f56e967 Fix list modes not being restored properly from channeldb. 2019-09-06 13:06:53 +02:00
Bram Matthys 8a6c84876e Rewrite/cleanup huge portion of TKL handling (16 files updated, but
src/modules/tkl.c is the main one).
Also move DB writing/reading functions to src/misc.c so they can be
removed out of channeldb and tkldb.

Important note to current tkldb users:
Unfortunately due to the major cleanup I had to remove upgrading
for previously saved tkl db files. That seemed not worth the effort
for maybe <15 current users or so. It also makes the tkldb code
a lot more cleaner. Otherwise it would be a huge mess.

Currently a FIXME item: spamfilter support in RMTKL.
2019-08-31 15:29:04 +02:00
Bram Matthys 17c6b5976d Update output of MODULE command (MODULE -all) to include the author,
slightly change the output and use RPL_TXT rather than NOTICE.
2019-08-27 14:12:00 +02:00
Bram Matthys 10faaf91ba Bump module header version to "unrealircd-5", add author field
and remove old dependency field (never used, was always NULL,
broken since 3.2.x)
I'll add some constraints later on things like names and versions.
IOTW: more changes to follow, don't mass update your own mods yet.
2019-08-26 20:29:47 +02:00
Bram Matthys 142289c2de Let's just call it a database rather than persistent storage file.
Also, fix a small memory leak if the database was corrupted.
2019-08-19 16:38:57 +02:00
Bram Matthys 7cda4eab53 Fix memory leaks in the new tkldb and channeldb modules. 2019-08-19 15:26:15 +02:00
Bram Matthys 887cf24fd7 Add channeldb module (loaded by default): this saves all channel settings
such as name, creationtime, modes, topic, bans/exempts/invex to a database
and restores it on-boot. It only does this for +P (persistent) channels.
2019-08-16 14:42:25 +02:00