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BanList: do not update existing bans with server bans

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For some reason, various IRC networks do not propagate banlist metadata
such as owner and timestamp when a server rejoins. This causes the
server's banlist entries to contain "set by server" instead of the
original individual who set it and "set on now" instead of when it was
originally set.

This commit modifies PBot's banlist monitoring to only update PBot's
internal banlist metadata when the ban doesn't exist or when the ban is
being updated by an actual individual instead of the server. Now PBot
will remember the original setter and the original timestamp
regardless of whether the IRC server can.
This commit is contained in:
Pragmatic Software 2021-09-12 18:59:36 -07:00
parent 6924bc236d
commit 153d771960
2 changed files with 59 additions and 16 deletions
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73
lib/PBot/Core/Handlers/BanList.pm
View File

@ -91,11 +91,25 @@ sub compare_banlist {
} }
} }
my $save = 0;
# add channel bans to saved bans # add channel bans to saved bans
foreach my $mask (keys %{$self->{temp_banlist}->{$channel}->{'+b'}}) { foreach my $mask (keys %{$self->{temp_banlist}->{$channel}->{'+b'}}) {
my $owner = $self->{temp_banlist}->{$channel}->{'+b'}->{$mask}->[0];
my $timestamp = $self->{temp_banlist}->{$channel}->{'+b'}->{$mask}->[1];
my $add = 0;
my $data = $self->{pbot}->{banlist}->{banlist}->get_data($channel, $mask); my $data = $self->{pbot}->{banlist}->{banlist}->get_data($channel, $mask);
$data->{owner} = $self->{temp_banlist}->{$channel}->{'+b'}->{$mask}->[0];
$data->{timestamp} = $self->{temp_banlist}->{$channel}->{'+b'}->{$mask}->[1]; # only update owner/timestamp if there's no existing entry or if the owner is a full hostmask.
# this prevents updating the owner/timestamp to a server value, losing information about who
# originally set the ban
if (!defined $data || $owner =~ /@/) {
$data->{owner} = $owner;
$data->{timestamp} = $timestamp;
$add = 1;
}
# make some special-case bans temporary # make some special-case bans temporary
if (not defined $data->{timeout} and $self->{pbot}->{chanops}->can_gain_ops($channel)) { if (not defined $data->{timeout} and $self->{pbot}->{chanops}->can_gain_ops($channel)) {
@ -108,15 +122,19 @@ sub compare_banlist {
if ($timeout) { if ($timeout) {
$self->{pbot}->{logger}->log("Temp ban for $mask in $channel.\n"); $self->{pbot}->{logger}->log("Temp ban for $mask in $channel.\n");
$data->{timeout} = gettimeofday + $timeout; $data->{timeout} = gettimeofday + $timeout;
$add = 1;
$self->{pbot}->{banlist}->enqueue_unban($channel, 'b', $mask, $timeout); $self->{pbot}->{banlist}->enqueue_unban($channel, 'b', $mask, $timeout);
} }
} }
} }
$self->{pbot}->{banlist}->{banlist}->add($channel, $mask, $data, 1); if ($add) {
$self->{pbot}->{banlist}->{banlist}->add($channel, $mask, $data, 1);
$save = 1;
}
} }
$self->{pbot}->{banlist}->{banlist}->save if keys %{$self->{temp_banlist}->{$channel}->{'+b'}}; $self->{pbot}->{banlist}->{banlist}->save if $save;
delete $self->{temp_banlist}->{$channel}->{'+b'}; delete $self->{temp_banlist}->{$channel}->{'+b'};
return 1; return 1;
} }
@ -138,15 +156,27 @@ sub compare_quietlist {
} }
} }
my $save = 0;
# add channel bans to saved bans # add channel bans to saved bans
foreach my $mask (keys %{$self->{temp_banlist}->{$channel}->{"+$mute_char"}}) { foreach my $mask (keys %{$self->{temp_banlist}->{$channel}->{"+$mute_char"}}) {
my $owner = $self->{temp_banlist}->{$channel}->{"+$mute_char"}->{$mask}->[0];
my $timestamp = $self->{temp_banlist}->{$channel}->{"+$mute_char"}->{$mask}->[1];
my $data = $self->{pbot}->{banlist}->{quietlist}->get_data($channel, $mask); my $data = $self->{pbot}->{banlist}->{quietlist}->get_data($channel, $mask);
$data->{owner} = $self->{temp_banlist}->{$channel}->{"+$mute_char"}->{$mask}->[0];
$data->{timestamp} = $self->{temp_banlist}->{$channel}->{"+$mute_char"}->{$mask}->[1]; # only update owner/timestamp if there's no existing entry or if the owner is a full hostmask.
$self->{pbot}->{banlist}->{quietlist}->add($channel, $mask, $data, 1); # this prevents updating the owner/timestamp to a server value, losing information about who
# originally set the quiet
if (!defined $data || $owner =~ /@/) {
$data->{owner} = $owner;
$data->{timestamp} = $timestamp;
$self->{pbot}->{banlist}->{quietlist}->add($channel, $mask, $data, 1);
$save = 1;
}
} }
$self->{pbot}->{banlist}->{quietlist}->save if keys %{$self->{temp_banlist}->{$channel}->{"+$mute_char"}}; $self->{pbot}->{banlist}->{quietlist}->save if $save;
delete $self->{temp_banlist}->{$channel}->{"+$mute_char"}; delete $self->{temp_banlist}->{$channel}->{"+$mute_char"};
return 1; return 1;
} }
@ -170,15 +200,28 @@ sub on_modeflag {
if ($mode eq "+b" or $mode eq "+$mute_char") { if ($mode eq "+b" or $mode eq "+$mute_char") {
$self->{pbot}->{logger}->log("Ban List: $mask " . ($mode eq '+b' ? 'banned' : 'muted') . " by $source in $channel.\n"); $self->{pbot}->{logger}->log("Ban List: $mask " . ($mode eq '+b' ? 'banned' : 'muted') . " by $source in $channel.\n");
my $data = {
owner => $source,
timestamp => scalar gettimeofday,
};
if ($mode eq "+b") { if ($mode eq "+b") {
$self->{pbot}->{banlist}->{banlist}->add($channel, $mask, $data); my $data = $self->{pbot}->{banlist}->{banlist}->get_data($channel, $mask);
# only update owner/timestamp if there's no existing entry or if the source is a full hostmask.
# this prevents updating the owner/timestamp to a server value, losing information about who
# originally set it
if (!defined $data || $source =~ /@/) {
$data->{owner} = $source;
$data->{timestamp} = scalar gettimeofday;
$self->{pbot}->{banlist}->{banlist}->add($channel, $mask, $data);
}
} elsif ($mode eq "+$mute_char") { } elsif ($mode eq "+$mute_char") {
$self->{pbot}->{banlist}->{quietlist}->add($channel, $mask, $data); my $data = $self->{pbot}->{banlist}->{quietlist}->get_data($channel, $mask);
# only update owner/timestamp if there's no existing entry or if the source is a full hostmask.
# this prevents updating the owner/timestamp to a server value, losing information about who
# originally set it
if (!defined $data || $source =~ /@/) {
$data->{owner} = $source;
$data->{timestamp} = scalar gettimeofday;
$self->{pbot}->{banlist}->{quietlist}->add($channel, $mask, $data);
}
} }
$self->{pbot}->{antiflood}->devalidate_accounts($mask, $channel); $self->{pbot}->{antiflood}->devalidate_accounts($mask, $channel);

2
lib/PBot/VERSION.pm
View File

@ -25,7 +25,7 @@ use PBot::Imports;
# These are set by the /misc/update_version script # These are set by the /misc/update_version script
use constant { use constant {
BUILD_NAME => "PBot", BUILD_NAME => "PBot",
BUILD_REVISION => 4386, BUILD_REVISION => 4387,
BUILD_DATE => "2021-09-12", BUILD_DATE => "2021-09-12",
}; };