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* Increment replies for list modes with /modeJune McEnroe2021-10-17
| | | | | Otherwise only /ban can be used to list bans and /mode b or /mode +b won't show the listing.
* Import refactored xdg.c from pounceJune McEnroe2021-10-16
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* chroot: Factor out and add OpenBSD buildJune McEnroe2021-09-27
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* Request znc.in/self-message if availableJune McEnroe2021-09-20
| | | | | | | | catgirl correctly handles receiving "self-messages". pounce always sends them. [1]: https://wiki.znc.in/Query_buffers [2]: https://defs.ircdocs.horse/info/selfmessages.html
* Correct handling of colons in SASL PLAINJune McEnroe2021-09-09
| | | | | | Only the first colon should be replaced with a null byte. Ported from pounce.
* Match id names case-insensitivelyJune McEnroe2021-08-26
| | | | | | | | | | | | | | This fixes the case where an IRCd does not normalize channel names, e.g. PRIVMSG #TEST is relayed as-is, rather than as #test or whatever the canonical casing of the channel name is. It also fixes the case of opening a query window with incorrect case, e.g. /query nickserv. However, this solution is only completely correct when CASEMAPPING=ascii.[1] I do not think the extra mappings of CASEMAPPING=rfc1459 are relevant enough to justify adding the code to handle it. [1]: https://modern.ircdocs.horse/#casemapping-parameter
* Remove trailing tabJune McEnroe2021-08-25
| | | | How embarrassing.
* Handle tags without values 1.9aJune McEnroe2021-08-15
| | | | | | Otherwise a tag with no value would cause a segfault trying to unescape the NULL tag pointer. This shouldn't happen for the server tags we parse, but clients could send @+draft/reply with no value.
* Fix missing include for flock(2)June McEnroe2021-08-09
| | | | | | On OpenBSD it's in <fcntl.h>, and it gets declared anyway on FreeBSD and macOS. Curiously, on GNU/Linux, LOCK_* are defined, but flock(2) isn't declared.
* Silence maybe uninitialized warningJune McEnroe2021-08-09
| | | | | Wouldn't happen anyway since configPath will always return at least one path.
* Use (bright) red for \com text macro 1.9June McEnroe2021-07-26
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* chroot: Avoid passing paths to -sJune McEnroe2021-07-20
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* FreeBSD: Revert caph_enter(3) call to cap_enter(2)June McEnroe2021-07-20
| | | | | | | | | | | caph_enter(3) is the same as cap_enter(2) except that it returns success even if the kernel does not support capability mode. Since we only enter capability mode when explicitly requested by the restrict option, it should fail loudly if it is not supported. On the other hand, we make calls to caph_rights_limit(3) and friends in some places regardless of whether we actually enter capability mode (to keep the code simple), so those should continue to succeed even if capability mode is not supported.
* Don't apply uiThreshold to Network and DebugJune McEnroe2021-07-20
| | | | | | | Messages don't really need to be hidden from <network> and I think it could be confusing. Debug messages are all Cold so everything would be hidden, and I want to keep them that way so that <debug> doesn't clutter the status line needlessly.
* Add -q/quiet option to raise default message visibility thresholdKlemens Nanni2021-07-20
| | | | | | | | | | | Silencing all windows with `M-+' (across multiple catgirl instances) can be cumbersome, so provide an option to hide events, JOIN/PART noise, etc. by default (each window's threshold will persist across load/save cycles, i.e. when using the `-s/save' option). Started out as `-v | visibility = threshold' to set a specific level, the idea of a simpler toggle comes from june, who also squashed other bugs (as usual).
* chat.tmux.conf: Fix base-index settingKlemens Nanni2021-07-15
| | | | | "base-index" expects integer values, tmux prints a warning at load-time but otherwise ignores the configuration line.
* Use /ns in manual exampleKlemens Nanni2021-07-15
| | | | Follow a79a3fc "Use NS and CS server aliases".
* Move platform-dependent sandboxing code out of mainJune McEnroe2021-07-13
| | | | | To keep the "main" sequence of events on one screen, while emphasizing that sandboxing happens either side of ircConnect().
* Move all UI initialization togetherJune McEnroe2021-07-13
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* Perform TLS handshake after final pledgeKlemens Nanni2021-07-13
| | | | | | | | | | | | | | | | | ircConnect() yields a connected TCP socket after which "inet dns" is no longer needed. Possibly having loaded private key material, it seems a tad more comforting to speak TLS *after* dropping any network capabilities (except for socket read/write to the IRC host, of course). Instead of moving the final pledge into irc.c:ircConnect() and thus complicating the code around pledge across two C modules, simply stub out an mnemonic ircHandshake() and call that explicitly. This restores behaviour gained with 981ebc4 "Remove explicit tls_handshake(3) from ircConnect" which was reverted for other reasons.
* Explicitly clear TLS secrets afer handshakeKlemens Nanni2021-07-13
| | | | | | | | | No need to keep them at runtime; do so unconditionally for the sake of simplicity. Declare TLS config globally so ircConnect() can clear it and declare both client and config statically as they are not used outside the irc.c module.
* Revert "Remove explicit tls_handshake(3) from ircConnect"Klemens Nanni2021-07-13
| | | | | | | This reverts commit 981ebc4f12b88fbf52ed0352428a0612dd2c2568. This broke `-o' to print the server certificate; without explicit handshake there will be no tls_read(3) in this short code path.
* FreeBSD: Avoid caph_stream_rights(3)June McEnroe2021-07-13
| | | | | | | | caph_stream_rights(3) doesn't exist before FreeBSD 13.0 and there's no good reason to create that dependency. I still run servers on FreeBSD 12. This is a partial revert of cbc9545cb3f76733030c867f32ddb6a922cd2907.
* Disable /exec in Kiosk mode (as documented)Klemens Nanni2021-07-13
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* /whois takes an optional nick argumentKlemens Nanni2021-07-13
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* Reword and clarify parts of the manualJune McEnroe2021-07-13
| | | | Mostly related to the utilities options.
* Use CS command for paramless /op and /voiceJune McEnroe2021-07-13
| | | | Should match the actual /cs command.
* Condense markup for ignore/highlight formatJune McEnroe2021-07-13
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* Point out precedence of multiple files and flagsJune McEnroe2021-07-13
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* Zero out server password after sendingJune McEnroe2021-07-13
| | | | | Also send it directly using ircSend to avoid copying it and logging it to <debug>.
* Make -o/printCert not load any files, pledge even earlierKlemens Nanni2021-07-13
| | | | | | | | | | | | | | | | | No point in trying to load a self-signed server certificate which we are about to get from the server in the first place. No need to read client certificate/key files when all we want is the server certificate: in TLS the server always sends its certificate before the client replies with any key material, i.e. catgirl sending client data is useless. catgirl(1) synopsis also notes how these options are irrelevant in the -o/printCert case. As a result, ircConfig() no longer requires any filesystem I/O in this case, so hoist the purely network I/O related pledge() call to enforce this -- more secure, self-documenting code!
* Attempt to keep "security" in README accurateJune McEnroe2021-07-13
| | | | It's a short summary trying to cover different systems...
* OpenBSD: merge unveil and pledge logic a bitKlemens Nanni2021-07-13
| | | | | | | This reads somewhat clearer as code is grouped by features instead of security mechanisms by simply merging identical tests/conditions. No functional change.
* OpenBSD: unveil logs regardless of restrict modeKlemens Nanni2021-07-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify logic and decouple the two features such that the code gets even more self-ducumenting. Previously `catgirl -R -l' would never unveil and therefore "proc exec" could execute arbitrary paths without "rpath" as is usual unveil/pledge semantic. Now that `catgirl -l' alone triggers unveil(2), previous "proc exec" alone is not enough since the first unveil() hides everything else from filesystem; unveil all of root executable-only in order to restore non-restrict mode's visibility. This leaves yields distinct cases wrt. filesystem visibility (hoisted save file functionality excluded): 1. restrict on, log off: no access 2. restrict on, log on : logdir write/create 3. restrict off, log off: all exec-only 4. restrict off, log on : logdir write/create, all else exec-only In the first case `unveil("/", "")' could be used but with no benefit as the later lack of "rpath wpath cpath", i.e. filesystem access is revoked entirely by pledge alone already. Practically, this does not change functionality but improves correctness and readability.
* Save invited channel for /joinJune McEnroe2021-07-02
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* Move security to the features listJune McEnroe2021-06-28
| | | | | The restrict option now enables real sandboxing on the two main target systems.
* OpenBSD: unveil the log directory specificallyJune McEnroe2021-06-28
| | | | | The call to logOpen() will have already created the directory. Still use dataMkdir() as a convenient way to get the created path.
* FreeBSD: Use capsicum_helpers.hJune McEnroe2021-06-28
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* Set MANDIR in chrootJune McEnroe2021-06-25
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* FreeBSD: Limit rights on log directoryJune McEnroe2021-06-25
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* FreeBSD: Limit rights on save fileJune McEnroe2021-06-25
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* FreeBSD: Limit rights on stdio and socketJune McEnroe2021-06-25
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* Remove explicit tls_handshake(3) from ircConnectJune McEnroe2021-06-25
| | | | | | The first call to ircFormat, which calls tls_write(3) in turn, will perform the handshake anyway. This way the handshake happens after the final pledge(2) call.
* Move setting CLOEXEC on socket to ircConnectJune McEnroe2021-06-25
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* FreeBSD: Enter capabilities mode if restrictedJune McEnroe2021-06-25
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* Keep log directory open, use mkdirat(2) and openat(2)June McEnroe2021-06-25
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* Encourage packagers to patch in text macrosJune McEnroe2021-06-24
| | | | Maybe no one will ever do it but I think it's a fun idea.
* Stop at previous \ when expanding macrosJune McEnroe2021-06-24
| | | | | There was no reason to ever require whitespace before the macro name.
* Replace SIGWINCH XXX comment with better explanationJune McEnroe2021-06-21
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* Register SIGWINCH handler before TLS connectKlemens Nanni2021-06-21
| | | | | | | | | | | Otherwise resizing the terminal will end catgirl until a handler is registered, e.g. while in ircConnect(): catgirl: tls_handshake: (null) Hoist registration right after uiInitEarly() as earliest possible point in main() since initscr(3) sets up various signals incl. SIGWINCH, i.e. initialise `cursesWinch' afterwards to pick up curses(3)'s handler.
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