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405 lines
11 KiB
Perl
405 lines
11 KiB
Perl
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package PBot::Plugins::RemindMe;
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use warnings;
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use strict;
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use feature 'switch';
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no if $] >= 5.018, warnings => "experimental::smartmatch";
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use Carp ();
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use DBI;
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use Time::Duration qw/concise duration/;
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use Time::HiRes qw/gettimeofday/;
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use Getopt::Long qw(GetOptionsFromString);
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use PBot::Utils::ParseDate;
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Getopt::Long::Configure ("bundling");
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sub new {
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Carp::croak("Options to " . __FILE__ . " should be key/value pairs, not hash reference") if ref $_[1] eq 'HASH';
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my ($class, %conf) = @_;
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my $self = bless {}, $class;
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$self->initialize(%conf);
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return $self;
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}
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sub initialize {
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my ($self, %conf) = @_;
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$self->{pbot} = delete $conf{pbot} // Carp::croak("Missing pbot reference to " . __FILE__);
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$self->{pbot}->{commands}->register(sub { $self->remindme(@_) }, 'remindme', 0);
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$self->{filename} = $self->{pbot}->{registry}->get_value('general', 'data_dir') . '/reminders.sqlite3';
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$self->{pbot}->{timer}->register(sub { $self->check_reminders(@_) }, 1, 'RemindMe');
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$self->dbi_begin;
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$self->create_database;
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}
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sub unload {
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my $self = shift;
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$self->dbi_end;
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$self->{pbot}->{commands}->unregister('remindme');
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$self->{pbot}->{timer}->unregister('RemindMe');
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}
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sub create_database {
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my $self = shift;
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return if not $self->{dbh};
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eval {
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$self->{dbh}->do(<<SQL);
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CREATE TABLE IF NOT EXISTS Reminders (
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id INTEGER PRIMARY KEY,
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account TEXT,
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target TEXT,
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text TEXT,
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alarm NUMERIC,
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repeat INTEGER,
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duration NUMERIC,
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created_on NUMERIC,
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created_by TEXT
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)
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SQL
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};
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$self->{pbot}->{logger}->log("RemindMe: create database failed: $@") if $@;
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}
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sub dbi_begin {
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my ($self) = @_;
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eval {
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$self->{dbh} = DBI->connect("dbi:SQLite:dbname=$self->{filename}", "", "", { RaiseError => 1, PrintError => 0, AutoInactiveDestroy => 1 }) or die $DBI::errstr;
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};
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if ($@) {
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$self->{pbot}->{logger}->log("Error opening RemindMe database: $@");
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delete $self->{dbh};
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return 0;
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} else {
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return 1;
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}
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}
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sub dbi_end {
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my ($self) = @_;
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return if not $self->{dbh};
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$self->{dbh}->disconnect;
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delete $self->{dbh};
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}
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sub add_reminder {
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my ($self, $account, $target, $text, $alarm, $duration, $repeat, $owner) = @_;
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eval {
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my $sth = $self->{dbh}->prepare('INSERT INTO Reminders (account, target, text, alarm, duration, repeat, created_on, created_by) VALUES (?, ?, ?, ?, ?, ?, ?, ?)');
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$sth->execute($account, $target, $text, $alarm, $duration, $repeat, scalar gettimeofday, $owner);
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};
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if ($@) {
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$self->{pbot}->{logger}->log("Add reminder failed: $@");
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return 0;
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}
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return 1;
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}
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sub update_reminder {
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my ($self, $id, $data) = @_;
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eval {
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my $sql = 'UPDATE Reminders SET ';
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my $comma = '';
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foreach my $key (keys %$data) {
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$sql .= "$comma$key = ?";
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$comma = ', ';
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}
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$sql .= ' WHERE id = ?';
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my $sth = $self->{dbh}->prepare($sql);
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my $param = 1;
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foreach my $key (keys %$data) {
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$sth->bind_param($param++, $data->{$key});
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}
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$sth->bind_param($param++, $id);
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$sth->execute();
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};
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$self->{pbot}->{logger}->log($@) if $@;
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}
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sub get_reminder {
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my ($self, $id) = @_;
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my $reminder = eval {
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my $sth = $self->{dbh}->prepare('SELECT * FROM Reminders WHERE id = ?');
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$sth->execute($id);
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return $sth->fetchrow_hashref();
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};
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if ($@) {
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$self->{pbot}->{logger}->log("List reminders failed: $@");
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return undef;
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}
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return $reminder;
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}
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sub get_reminders {
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my ($self, $account) = @_;
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my $reminders = eval {
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my $sth = $self->{dbh}->prepare('SELECT * FROM Reminders WHERE account = ? ORDER BY id');
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$sth->execute($account);
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return $sth->fetchall_arrayref({});
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};
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if ($@) {
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$self->{pbot}->{logger}->log("List reminders failed: $@");
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return [];
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}
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return $reminders;
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}
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sub delete_reminder {
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my ($self, $id) = @_;
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return if not $self->{dbh};
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eval {
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my $sth = $self->{dbh}->prepare('DELETE FROM Reminders WHERE id = ?');
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$sth->execute($id);
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};
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if ($@) {
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$self->{pbot}->{logger}->log("Delete reminder $id failed: $@");
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return 0;
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}
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return 1;
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}
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sub remindme {
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my ($self, $from, $nick, $user, $host, $arguments) = @_;
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if (not $self->{dbh}) {
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return "Internal error.";
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}
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my $usage = "Usage: remindme [-c channel] [-r count] message -t time | remindme -l [nick] | remindme -d id";
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return $usage if not length $arguments;
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my ($target, $repeat, $text, $alarm, $list_reminders, $delete_id);
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my $getopt_error;
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local $SIG{__WARN__} = sub {
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$getopt_error = shift;
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chomp $getopt_error;
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};
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$arguments =~ s/(?<!\\)'/\\'/g;
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my ($ret, $args) = GetOptionsFromString($arguments,
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'r:i' => \$repeat,
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't:s' => \$alarm,
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'c:s' => \$target,
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'm:s' => \$text,
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'l:s' => \$list_reminders,
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'd:i' => \$delete_id);
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return "$getopt_error -- $usage" if defined $getopt_error;
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if (defined $list_reminders) {
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my $nick_override = $list_reminders if length $list_reminders;
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my $account;
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if ($nick_override) {
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my $hostmask;
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($account, $hostmask) = $self->{pbot}->{messagehistory}->{database}->find_message_account_by_nick($nick_override);
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if (not $account) {
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return "I don't know anybody named $nick_override.";
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}
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($nick_override) = $hostmask =~ m/^([^!]+)!/;
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} else {
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$account = $self->{pbot}->{messagehistory}->{database}->get_message_account($nick, $user, $host);
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}
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$account = $self->{pbot}->{messagehistory}->{database}->get_ancestor_id($account);
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my $reminders = $self->get_reminders($account);
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my $count = 0;
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my $text = '';
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my $now = scalar gettimeofday;
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foreach my $reminder (@$reminders) {
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my $duration = concise duration $reminder->{alarm} - $now;
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$text .= "$reminder->{id}) [in $duration]";
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$text .= " ($reminder->{repeat} repeats left)" if $reminder->{repeat};
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$text .= " $reminder->{text}\n";
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$count++;
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}
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if (not $count) {
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if ($nick_override) {
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return "$nick_override has no reminders.";
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} else {
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return "You have no reminders.";
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}
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}
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$reminders = $count == 1 ? 'reminder' : 'reminders';
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return "$count $reminders: $text";
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}
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if ($delete_id) {
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my $admininfo = $self->{pbot}->{admins}->loggedin($target ? $target : $from, "$nick!$user\@$host");
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# admins can delete any reminders (perhaps check admin levels against owner level?)
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if ($admininfo) {
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if (not $self->get_reminder($delete_id)) {
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return "Reminder $delete_id does not exist.";
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}
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if ($self->delete_reminder($delete_id)) {
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return "Reminder $delete_id deleted.";
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} else {
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return "Could not delete reminder $delete_id.";
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}
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}
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my $account = $self->{pbot}->{messagehistory}->{database}->get_message_account($nick, $user, $host);
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$account = $self->{pbot}->{messagehistory}->{database}->get_ancestor_id($account);
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my $reminder = $self->get_reminder($delete_id);
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if (not $reminder) {
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return "Reminder $delete_id does not exist.";
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}
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if ($reminder->{account} != $account) {
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return "Reminder $delete_id does not belong to you.";
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}
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if ($self->delete_reminder($delete_id)) {
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return "Reminder $delete_id deleted.";
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} else {
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return "Could not delete reminder $delete_id.";
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}
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}
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$text = join ' ', @$args if not defined $text;
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return "Please specify a point in time for this reminder." if not $alarm;
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return "Please specify a reminder message." if not $text;
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my $admininfo = $self->{pbot}->{admins}->loggedin($target ? $target : $from, "$nick!$user\@$host");
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if ($target) {
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if (not defined $admininfo) {
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return "Only admins can create channel reminders.";
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}
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if (not $self->{pbot}->{channels}->is_active($target)) {
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return "I'm not active in channel $target.";
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}
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}
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my ($length, $error) = parsedate($alarm);
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return $error if $error;
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# I don't know how I feel about enforcing arbitrary time restrictions
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if ($length > 31536000 * 10) {
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return "Come on now, I'll be dead by then.";
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}
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if (not defined $admininfo and $length < 60) {
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return "Time must be a minimum of 60 seconds.";
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}
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if (not defined $admininfo and $repeat > 10) {
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return "You may only set up to 10 repeats.";
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}
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if ($repeat < 0) {
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return "Repeats must be 0 or greater.";
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}
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$alarm = gettimeofday + $length;
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my $account = $self->{pbot}->{messagehistory}->{database}->get_message_account($nick, $user, $host);
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$account = $self->{pbot}->{messagehistory}->{database}->get_ancestor_id($account);
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if (not defined $admininfo) {
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my $reminders = $self->get_reminders($account);
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if (@$reminders >= 3) {
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return "You may only set 3 reminders at a time. Use `remindme -d id` to remove a reminder.";
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}
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}
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if ($self->add_reminder($account, $target, $text, $alarm, $length, $repeat, "$nick!$user\@$host")) {
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return "Reminder added.";
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} else {
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return "Failed to add reminder.";
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}
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}
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sub check_reminders {
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my $self = shift;
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return if not $self->{dbh};
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my $reminders = eval {
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my $sth = $self->{dbh}->prepare('SELECT * FROM Reminders WHERE alarm <= ?');
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$sth->execute(scalar gettimeofday);
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return $sth->fetchall_arrayref({});
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};
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if ($@) {
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$self->{pbot}->{logger}->log("Check reminders failed: $@");
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return;
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}
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foreach my $reminder (@$reminders) {
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# ensures we get the current nick of the person
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my $hostmask = $self->{pbot}->{messagehistory}->{database}->find_most_recent_hostmask($reminder->{account});
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my ($nick) = $hostmask =~ /^([^!]+)!/;
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# delete this reminder if it's expired by 31 days
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if (gettimeofday - $reminder->{alarm} >= 86400 * 31) {
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$self->{pbot}->{logger}->log("Deleting expired reminder: $reminder->{id}) $reminder->{text} set by $reminder->{created_by}\n");
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$self->delete_reminder($reminder->{id});
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next;
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}
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# don't execute this reminder if the person isn't around yet
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next if not $self->{pbot}->{nicklist}->is_present_any_channel($nick);
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my $text = "Reminder: $reminder->{text}";
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my $target = $reminder->{target} // $nick;
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$self->{pbot}->{conn}->privmsg($target, $text);
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$self->{pbot}->{logger}->log("Reminded $target about \"$text\"\n");
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if ($reminder->{repeat} > 0) {
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$reminder->{repeat}--;
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$reminder->{alarm} = gettimeofday + $reminder->{duration};
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my $data = { repeat => $reminder->{repeat}, alarm => $reminder->{alarm} };
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$self->update_reminder($reminder->{id}, $data);
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} else {
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$self->delete_reminder($reminder->{id});
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}
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}
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}
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1;
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