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Commit Graph

8489 Commits

Author SHA1 Message Date
Bram Matthys 2ea75dfbdb Add geoip_base module, which sets "geo_country" if a geo provider
module is able to lookup the IP and return a country.

Also consistently use geoip_ and GEOIP_ prefixes.
2021-08-17 15:26:29 +02:00
Bram Matthys 0bbad85f84 Add geo_lookup() function. Make geoip_classic do something useful.
NOTE: everything hardcoded atm, just temporarily.
Add CALLBACKTYPE_GEO_LOOKUP which is called from geo_lookup().
2021-08-17 15:11:40 +02:00
Bram Matthys 8cdbc3ae86 Don't build geoip_classic without --enable-geoip-classic=yes.
([I... hate... M4!])
2021-08-17 14:37:48 +02:00
Bram Matthys ed7bf1daf5 Bundle with GeoIP classic library and add geoip_classic placeholder.
This library we can safely bundle because it is GPLv2.
2021-08-17 14:11:36 +02:00
Bram Matthys 9ff56089ad Show TLS cipher in [secure: xyz] in far connects too (+s +F).
This requires both servers to be using UnrealIRCd 6 and there
should be no UnrealIRCd 5 server in-between (eg an old hub).

This also changes tls_cipher() to expect a Client * argument.
And tls_get_cipher() can now safely be called on any client,
including remote clients, and it will return the cipherstring
if it is known via moddata.
2021-08-16 14:30:21 +02:00
Bram Matthys 76da8714a7 Fix using the wrong variable in moddata_extract_s2s_mtags() 2021-08-16 14:26:49 +02:00
Bram Matthys 11167924df Add tls_cipher module which stores/retrieves the TLS cipher of all users. 2021-08-16 14:16:13 +02:00
Bram Matthys f75a9c8544 Sync ModData in UID command if mdata.sync = MODDATA_SYNC_EARLY.
This way we should be able to show certfp and webirc status
in far connect notices, and later various other details too.
2021-08-16 14:01:45 +02:00
Bram Matthys 7500de1060 Permit unknown message tags from trusted servers. 2021-08-16 13:48:09 +02:00
Bram Matthys 48e3901f27 It's probably a good idea to send the channel name in SJOIN
(fix for commit from yesterday, 99d2870870)
2021-08-15 08:59:32 +02:00
Bram Matthys 6134452b82 Fix crash on connect due to wrong reputation logging
(accessing e->ip when e is NULL) in DEBUGMODE.
2021-08-14 21:08:25 +02:00
Bram Matthys 99d2870870 For SJOIN, send the shorter nomode&nopara version when possible.
We used to always send the long version:
SJOIN ts #channel +sntkl key 999 :xxx
From now on we only send that for the first SJOIN for a channel
when syncing. For any subsequent SJOINs (so for larger channels or
with lots of bans/exempts/invexes) we will use the short version:
SJOIN ts #channel :xxx

We now do it that way because the remote side already received
all the modes the first time, so they are redundant in the
subsequent SJOINs for the same channel.
Especially if you have a channel with a large mode string, such as
+lLfH 99 #redirectchan [30j#i10,40m#m10,7c#C15,10n#N15,30k#K10]:15 100:1d
it was previously 1) wasting bandwidth and 2) unnecessary CPU
trying to merge channel modes that were already the same.
2021-08-14 21:03:49 +02:00
Bram Matthys 428c301a94 unreal_server_compat: convert named extbans in SJOIN as well. 2021-08-14 20:05:00 +02:00
Bram Matthys eac417d66a Fix memory leak on +beI 2021-08-14 18:36:01 +02:00
Bram Matthys a43637d55d Add extban->is_banned_events which you need to set to indicate to
which BANCHK_* events you want to listen, eg BANCHK_JOIN, BANCHK_MSG.
You can use BANCHK_ALL to watch on all events.
Only BANCHK_TKL is not included there and needs an explicit
BANCHK_ALL|BANCHK_TKL.

The caller will now take care of BANCHK_* filtering so we won't
waste any CPU on calling an is_banned() function that isn't
interested at all in the event that we have.

Also, no longer require an extban->is_banned function, since some
extbans don't use it. This too saves useless calls.
2021-08-14 18:25:36 +02:00
Bram Matthys 03d78bf95d Fix looking up the wrong extban in some cases.
~T => ~text => starts with ~t => ~time... fun.
2021-08-14 17:57:22 +02:00
Bram Matthys 75dbd99614 I think the code already handles all these "can't stack these" cases.
If I'm wrong we have a regression :D
2021-08-14 17:46:44 +02:00
Bram Matthys 0acc9eef49 Add parameter to clean_ban_mask() that will be put in b->conv_options.
Currently only supported option is:
BCTX_CONV_OPTION_WRITE_LETTER_BANS: always write letter bans

This removes the NULL pointer magic that i was not happy about.
2021-08-14 17:36:49 +02:00
Bram Matthys ca4f4c2575 Add PROTOCTL NEXTBANS. This indicates support for named extended bans.
If you don't indicate NEXTBANS support then we will send old fashioned
extended bans to you.
Note that eventually we will likely require named extended bans support,
but that will be UnrealIRCd 7 / 8.... ;)
2021-08-14 17:28:15 +02:00
Bram Matthys 5f31f7a5cc Add unreal_server_compat module which rewrites named extbans in
server to server traffic to be letter extbans.
Yeah this is a tad ugly, but the alternative was worse, see
header of the file for the full story.

Module is loaded by default (obviously).

Still to do: only do this for non-U6 servers (add some PROTOCTL)

And probably alter clean_ban_mask because I don't like the
magic on NULL client at the moment.
2021-08-14 16:45:18 +02:00
Bram Matthys f6704cfd1c Add empty_mode(modebuf) to check for "", "+" or "-" modes, that is:
modes that are empty/useless. Previously this check was done at
several places in their own way. Ugly and duplicate code.
2021-08-14 15:18:34 +02:00
Bram Matthys c0d31130f8 channel->creationtime is always set, so assume this is always set.
In U5 channel->creationtime could be 0 momentarily, eg for a new
channel, but nowadays we set channel->creationtime to TStime()
if the channel gets created in make_channel() [*]
[*] which was previously called get_channel() by the way

Also update some comments in mode.c to make things more clear.
2021-08-14 15:10:32 +02:00
Bram Matthys 9e0357ad71 Get rid of all the bounce stuff in MODE.
The only stuff we still have is if a bounce servermode is detected
(incoming) then we just ignore it.

All this bounce stuff wasn't used much, and didn't even work
(was always sending empty bounce string). It was only complicating
the code everywhere with stupid stuff like:
*x++ = bounce ? '+' : '-';
what = MODE_DEL;
2021-08-14 14:56:53 +02:00
Bram Matthys ec6062bc53 Slightly change the log message for the other case which previous
caused a bounce, or was supposed to (never really worked either).
We now ignore the mode (which was de-facto what we did anyway)
and also log it in that way.
2021-08-14 14:41:39 +02:00
Bram Matthys a5b86fcc11 Don't try to fix op-desyncs anymore. The bounce code didn't work anyway
(but the -oh did work)
2021-08-14 14:29:32 +02:00
Bram Matthys c7345f41b6 Fix hardcoded ~f: and ~m: to also deal with named bans.
(Actually only made it worse by more hardcoding for now...)
2021-08-14 10:35:15 +02:00
Bram Matthys b80a9adef9 Set extended ban names instead of using module name placeholders. 2021-08-14 10:28:26 +02:00
Bram Matthys a70580cc86 Enable sending of named extended bans. This can be changed via the
configuration file via set::named-extended-bans <yes|no>; and now
defaults to yes.
Still to do:
* explicitly set names instead of using stupid module names
* update test suite to check for these new names (other git tree)
* backwards compatible sending to U5 and lower using ugly shit
2021-08-14 10:12:43 +02:00
Bram Matthys 34bf0d7ec6 Grin... 2021-08-14 09:50:58 +02:00
Bram Matthys a6b5587666 Use prefix_with_extban() at the 3 places, needed for next... 2021-08-14 09:49:22 +02:00
Bram Matthys 34b034ab36 Add named extban support. This only deals with the incoming parsing,
it is not visible outgoing yet. So: ~account:name becomes ~a:name.
2021-08-14 09:27:39 +02:00
Bram Matthys d41e3e0f6e src/modules/extbans/*.c: memset(&req, 0, sizeof(req)); before ExtbanAdd() 2021-08-14 09:27:01 +02:00
Bram Matthys 5a387f9c0b Rename extban.flag to extban.letter.
TODO: Should probably do this for umode/cmode as well ;)
2021-08-14 09:07:22 +02:00
Bram Matthys f23546b27c More conv_param() changes, the +3 rule changed, and matches the rest.
The .conv_param() now receives the ban minus the ~own-extban.
And it should also return the part minus the ~own-extban.

Changes to findmod_by_bantype():
1) Takes a string now, rather than a single char value,
   so it is ready for named extbans.
2) Second parameter added so you can easily jump to the remainder.
   Eg:
   extban = findmod_by_bantype(b->banstr, &nextbanstr);
   [..check if extban is non-NULL and then..]
   b->banstr = nextbanstr;
2021-08-14 08:57:33 +02:00
Bram Matthys 5269b647d5 Round three of extban API overhaul, this changes extban->conv_param().
More changes will follow related to that...
2021-08-13 17:59:45 +02:00
Bram Matthys 163eaa432c ExtBans API: Now we can get rid of the +3 everywhere in is_ok().
When extban->is_ok() is called the banstr now no longer points
to "~x:something" but to "something".
Just like we did for extban->is_banned().
Again, need this for later too...
2021-08-13 16:39:03 +02:00
Bram Matthys b5d948c09c Round two of extban API overhaul, this changes extban->is_ok()
Also cleanup big blob op duplicate code in +beI handling in MODE.
2021-08-13 16:03:15 +02:00
Bram Matthys 98291c9f69 ExtBans API: Now we can get rid of the +3 everywhere in is_banned().
When extban->is_banned() is called the banstr now no longer points
to "~x:something" but to "something". This will be more useful later...
2021-08-13 14:39:34 +02:00
Bram Matthys bff6fdde6f Start of extban API recode. I created the current API in 2003 and..
well.. let's hope I have gained some good insights since then.. :D
2021-08-13 14:17:07 +02:00
Bram Matthys bdef6a2af2 Move stuff from AllowClient() to register_user(), since it deals with
setting hostname and such, which does not belong there (well, mostly)
2021-08-13 13:10:23 +02:00
Bram Matthys a0a95f6cee Get rid of unnecessary check_init() stuff (and the hook) 2021-08-13 13:06:35 +02:00
Bram Matthys da3bdc0437 AllowClient() doesn't need nor use the 2nd argument. 2021-08-13 12:27:23 +02:00
Bram Matthys 68b6f62d88 Convert DNS names to lowercase 2021-08-13 12:23:44 +02:00
Bram Matthys eb171c8e22 Add strtolower(). Note: we already hade strtolower_safe(). 2021-08-13 12:22:49 +02:00
Bram Matthys 9310fd3b4b Move check for valid hostname out of register_user(), we already
have that in dns.c. Also remove verify_hostname() from dns.c and
integrate it in valid_host() which now takes a second argument
named 'strict'. Call valid_host() with strict set to 1 if the
hostname should be checked to be a valid DNS hostname, eg the
host may not contain stuff like ':' or '/'. Use 0 otherwise
for the loose check, eg if you are not sure if the passed host
is an IP address or a host, or if it is for a vhost.
2021-08-13 12:17:24 +02:00
Bram Matthys 7c250188a5 Some moving around 2021-08-13 12:05:37 +02:00
Bram Matthys 72d4973840 Cleanup code that sets client->user->username based on ident config and result 2021-08-13 11:59:54 +02:00
Bram Matthys 1b3376d091 More cleanups in register_user(): Move the username checks to valid_username() 2021-08-13 11:54:43 +02:00
Bram Matthys 3a9976ef53 Get rid of ERR_HOSTILENAME which clutters the code too much
and no other IRCd seems to be using it.
2021-08-13 11:33:34 +02:00
Bram Matthys 3f8538f767 Split off part of register_user() to new function welcome_user() 2021-08-13 11:30:53 +02:00