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https://github.com/pragma-/pbot.git
synced 2024-11-26 13:59:47 +01:00
Improve ban evasion; show evaded ban in kick message
This commit is contained in:
Pragmatic Software
parent
62b8432be9
commit
bf45c6cdde
@ -146,7 +146,7 @@ sub whitelist {
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}
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}
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sub check_join_watch {
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sub update_join_watch {
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my ($self, $account, $channel, $text, $mode) = @_;
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return if $channel =~ /[@!]/; # ignore QUIT messages from nick!user@host channels
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@ -217,7 +217,7 @@ sub check_flood {
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my $channels = $self->{pbot}->{nicklist}->get_channels($nick);
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foreach my $chan (@$channels) {
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next if $chan !~ m/^#/;
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$self->check_join_watch($account, $chan, $text, $mode);
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$self->update_join_watch($account, $chan, $text, $mode);
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}
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$self->{pbot}->{messagehistory}->{database}->devalidate_all_channels($account);
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@ -230,7 +230,7 @@ sub check_flood {
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if($mode == $self->{pbot}->{messagehistory}->{MSG_NICKCHANGE}) {
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$channels = $self->{pbot}->{nicklist}->get_channels($nick);
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} else {
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$self->check_join_watch($account, $channel, $text, $mode);
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$self->update_join_watch($account, $channel, $text, $mode);
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push @$channels, $channel;
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}
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@ -254,16 +254,20 @@ sub check_flood {
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}
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# check for ban evasion if channel begins with # (not private message) and hasn't yet been validated against ban evasion
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if($channel =~ m/^#/ and not $self->{pbot}->{messagehistory}->{database}->get_channel_data($account, $channel, 'validated')->{'validated'} & $self->{NICKSERV_VALIDATED}) {
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if($mode == $self->{pbot}->{messagehistory}->{MSG_DEPARTURE}) {
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# don't check for evasion on PART/KICK
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} elsif ($mode == $self->{pbot}->{messagehistory}->{MSG_NICKCHANGE}) {
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$self->{pbot}->{conn}->whois($nick) unless exists $self->{whois_pending}->{$nick};
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$self->{whois_pending}->{$nick} = gettimeofday;
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} else {
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$self->{pbot}->{conn}->whois($nick) unless exists $self->{whois_pending}->{$nick};
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$self->{whois_pending}->{$nick} = gettimeofday;
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$self->check_bans($account, $mask, $channel);
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if($channel =~ m/^#/) {
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my $validated = $self->{pbot}->{messagehistory}->{database}->get_channel_data($account, $channel, 'validated')->{'validated'};
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if($validated & $self->{NEEDS_CHECKBAN} or not $validated & $self->{NICKSERV_VALIDATED}) {
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if($mode == $self->{pbot}->{messagehistory}->{MSG_DEPARTURE}) {
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# don't check for evasion on PART/KICK
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} elsif ($mode == $self->{pbot}->{messagehistory}->{MSG_NICKCHANGE}) {
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$self->{pbot}->{conn}->whois($nick) unless exists $self->{whois_pending}->{$nick};
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$self->{whois_pending}->{$nick} = gettimeofday;
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} else {
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$self->{pbot}->{conn}->whois($nick) unless exists $self->{whois_pending}->{$nick};
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$self->{whois_pending}->{$nick} = gettimeofday;
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$self->check_bans($account, $mask, $channel);
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}
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}
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}
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@ -540,61 +544,61 @@ sub check_bans {
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my $debug_checkban = $self->{pbot}->{registry}->get_value('antiflood', 'debug_checkban');
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] checking for bans on $mask in $channel\n") if $debug_checkban >= 3;
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] checking for bans on $mask in $channel\n") if $debug_checkban >= 1;
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my $current_nickserv_account = $self->{pbot}->{messagehistory}->{database}->get_current_nickserv_account($message_account);
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my $current_nickserv_account = $self->{pbot}->{messagehistory}->{database}->get_current_nickserv_account($message_account);
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if($current_nickserv_account) {
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] current nickserv [$current_nickserv_account] found for $mask\n") if $debug_checkban >= 2;
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my $channel_data = $self->{pbot}->{messagehistory}->{database}->get_channel_data($message_account, $channel, 'validated');
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if($channel_data->{validated} & $self->{NEEDS_CHECKBAN}) {
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$channel_data->{validated} &= ~$self->{NEEDS_CHECKBAN};
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$self->{pbot}->{messagehistory}->{database}->update_channel_data($message_account, $channel, $channel_data);
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}
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} else {
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# mark this account as needing check-bans when nickserv account is identified
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my $channel_data = $self->{pbot}->{messagehistory}->{database}->get_channel_data($message_account, $channel, 'validated');
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if(not $channel_data->{validated} & $self->{NEEDS_CHECKBAN}) {
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$channel_data->{validated} |= $self->{NEEDS_CHECKBAN};
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$self->{pbot}->{messagehistory}->{database}->update_channel_data($message_account, $channel, $channel_data);
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}
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] no account for $mask; marking for later validation\n") if $debug_checkban >= 2;
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}
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my ($nick) = $mask =~ m/^([^!]+)/;
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my %aliases = $self->{pbot}->{messagehistory}->{database}->get_also_known_as($nick);
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my ($do_not_validate, $bans);
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foreach my $alias (keys %aliases) {
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next if $alias =~ /^Guest\d+(?:!.*)?$/;
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] checking blacklist for $alias in channel $channel\n") if $debug_checkban >= 5;
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if ($self->{pbot}->{blacklist}->check_blacklist($alias, $channel)) {
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my $baninfo = {};
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$baninfo->{banmask} = $alias;
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$baninfo->{channel} = $channel;
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$baninfo->{owner} = 'blacklist';
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$baninfo->{when} = 0;
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$baninfo->{type} = 'blacklist';
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push @$bans, $baninfo;
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next;
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}
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my @nickservs;
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if (exists $aliases{$alias}->{nickserv}) {
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@nickservs = split /,/, $aliases{$alias}->{nickserv};
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if($current_nickserv_account) {
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] current nickserv [$current_nickserv_account] found for $mask\n") if $debug_checkban >= 2;
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my $channel_data = $self->{pbot}->{messagehistory}->{database}->get_channel_data($message_account, $channel, 'validated');
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if($channel_data->{validated} & $self->{NEEDS_CHECKBAN}) {
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$channel_data->{validated} &= ~$self->{NEEDS_CHECKBAN};
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$self->{pbot}->{messagehistory}->{database}->update_channel_data($message_account, $channel, $channel_data);
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}
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} else {
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@nickservs = (undef);
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# mark this account as needing check-bans when nickserv account is identified
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my $channel_data = $self->{pbot}->{messagehistory}->{database}->get_channel_data($message_account, $channel, 'validated');
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if(not $channel_data->{validated} & $self->{NEEDS_CHECKBAN}) {
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$channel_data->{validated} |= $self->{NEEDS_CHECKBAN};
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$self->{pbot}->{messagehistory}->{database}->update_channel_data($message_account, $channel, $channel_data);
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}
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] no account for $mask; marking for later validation\n") if $debug_checkban >= 1;
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}
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foreach my $nickserv (@nickservs) {
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] checking for bans in $channel on $alias using nickserv " . (defined $nickserv ? $nickserv : "[undefined]") . "\n") if $debug_checkban >= 4;
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my $baninfos = $self->{pbot}->{bantracker}->get_baninfo($alias, $channel, $nickserv);
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my ($nick) = $mask =~ m/^([^!]+)/;
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my %aliases = $self->{pbot}->{messagehistory}->{database}->get_also_known_as($nick);
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if(defined $baninfos) {
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foreach my $baninfo (@$baninfos) {
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if(time - $baninfo->{when} < 5) {
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my ($do_not_validate, $bans);
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foreach my $alias (keys %aliases) {
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next if $alias =~ /^Guest\d+(?:!.*)?$/;
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] checking blacklist for $alias in channel $channel\n") if $debug_checkban >= 5;
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if ($self->{pbot}->{blacklist}->check_blacklist($alias, $channel)) {
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my $baninfo = {};
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$baninfo->{banmask} = $alias;
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$baninfo->{channel} = $channel;
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$baninfo->{owner} = 'blacklist';
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$baninfo->{when} = 0;
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$baninfo->{type} = 'blacklist';
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push @$bans, $baninfo;
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next;
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}
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my @nickservs;
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if (exists $aliases{$alias}->{nickserv}) {
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@nickservs = split /,/, $aliases{$alias}->{nickserv};
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} else {
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@nickservs = (undef);
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}
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foreach my $nickserv (@nickservs) {
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] checking for bans in $channel on $alias using nickserv " . (defined $nickserv ? $nickserv : "[undefined]") . "\n") if $debug_checkban >= 2;
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my $baninfos = $self->{pbot}->{bantracker}->get_baninfo($alias, $channel, $nickserv);
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if(defined $baninfos) {
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foreach my $baninfo (@$baninfos) {
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if(time - $baninfo->{when} < 5) {
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] $mask evaded $baninfo->{banmask} in $baninfo->{channel}, but within 5 seconds of establishing ban; giving another chance\n");
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my $channel_data = $self->{pbot}->{messagehistory}->{database}->get_channel_data($message_account, $channel, 'validated');
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if($channel_data->{validated} & $self->{NICKSERV_VALIDATED}) {
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@ -610,10 +614,12 @@ sub check_bans {
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next;
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}
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=cut
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if($baninfo->{type} eq '+b' and $baninfo->{banmask} =~ m/!\*@\*$/) {
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$self->{pbot}->{logger}->log("anti-flood: [check-bans] Disregarding generic nick ban\n");
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next;
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}
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=cut
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my $banmask_regex = quotemeta $baninfo->{banmask};
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$banmask_regex =~ s/\\\*/.*/g;
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@ -652,9 +658,11 @@ sub check_bans {
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if ($baninfo->{type} eq 'blacklist') {
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$self->{pbot}->{chanops}->add_op_command($baninfo->{channel}, "kick $baninfo->{channel} $bannick I don't think so");
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} else {
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$self->{pbot}->{chanops}->add_op_command($baninfo->{channel}, "kick $baninfo->{channel} $bannick Ban evasion");
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my $owner = $baninfo->{owner};
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$owner =~ s/!.*$//;
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$self->{pbot}->{chanops}->add_op_command($baninfo->{channel}, "kick $baninfo->{channel} $bannick Evaded $baninfo->{banmask} set by $owner");
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}
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$self->{pbot}->{chanops}->ban_user_timed($banmask, $baninfo->{channel}, 60 * 60 * 12);
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$self->{pbot}->{chanops}->ban_user_timed($banmask, $baninfo->{channel}, 60 * 60 * 24 * 7);
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}
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my $channel_data = $self->{pbot}->{messagehistory}->{database}->get_channel_data($message_account, $channel, 'validated');
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if($channel_data->{validated} & $self->{NICKSERV_VALIDATED}) {
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