Video conf based on SimpleWebRTC https://vroom.fws.fr/documentation
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#!/usr/bin/env perl
# This file is part of the VROOM project
# released under the MIT licence
# Copyright 2014 Firewall Services
use lib '../lib';
use Mojolicious::Lite;
use Mojolicious::Plugin::Mailer;
use Mojo::JSON;
use DBI;
use Data::GUID qw(guid_string);
use Digest::MD5 qw(md5_hex);
use MIME::Base64;
use Email::Sender::Transport::Sendmail;
use Encode;
# Used to generate thanks on the about template
our $components = {
"SimpleWebRTC" => {
url => 'http://simplewebrtc.com/'
},
"Mojolicious" => {
url => 'http://mojolicio.us/'
},
"Jquery" => {
url => 'http://jquery.com/'
},
"notify.js" => {
url => 'http://notifyjs.com/'
},
"jquery-browser-plugin" => {
url => 'https://github.com/gabceb/jquery-browser-plugin'
},
"sprintf.js" => {
url => 'http://hexmen.com/blog/2007/03/printf-sprintf/'
},
"node.js" => {
url => 'http://nodejs.org/'
},
"bootstrap" => {
url => 'http://getbootstrap.com/'
},
"MariaDB" => {
url => 'https://mariadb.org/'
},
"SignalMaster" => {
url => 'https://github.com/andyet/signalmaster/'
},
"rfc5766-turn-server" => {
url => 'https://code.google.com/p/rfc5766-turn-server/'
},
"FileSaver" => {
url => 'https://github.com/eligrey/FileSaver.js'
}
};
app->log->level('info');
our $config = plugin Config => {
file => '../conf/vroom.conf',
default => {
dbi => 'DBI:mysql:database=devroom;host=localhost',
dbUser => 'vroom',
dbPassword => 'vroom',
signalingServer => 'https://vroom.example.com/',
stunServer => 'stun.l.google.com:19302',
realm => 'vroom',
emailFrom => 'vroom@example.com',
feedbackRecipient => 'admin@example.com',
template => 'default',
inactivityTimeout => 3600,
logLevel => 'info',
chromeExtensionId => 'ecicdpoejfllflombfanbhfpgcimjddn',
sendmail => '/sbin/sendmail'
}
};
app->log->level($config->{logLevel});
plugin I18N => {
namespace => 'Vroom::I18N',
support_url_langs => [qw(en fr)]
};
plugin Mailer => {
from => $config->{emailFrom},
transport => Email::Sender::Transport::Sendmail->new({ sendmail => $config->{sendmail}}),
};
helper db => sub {
my $dbh = DBI->connect($config->{dbi}, $config->{dbUser}, $config->{dbPassword}) || die "Could not connect";
$dbh
};
helper login => sub {
my $self = shift;
return if $self->session('name');
my $login = $ENV{'REMOTE_USER'} || lc guid_string();
$self->session( name => $login,
ip => $self->tx->remote_address );
$self->app->log->info($self->session('name') . " logged in from " . $self->tx->remote_address);
};
helper logout => sub {
my $self = shift;
$self->session( expires => 1);
$self->app->log->info($self->session('name') . " logged out");
};
helper create_room => sub {
my $self = shift;
my ($name,$owner) = @_;
return undef if ( $self->get_room($name) || !$self->valid_room_name($name));
my $sth = eval { $self->db->prepare("INSERT INTO rooms (name,create_timestamp,activity_timestamp,owner,token,realm) VALUES (?,?,?,?,?,?);") } || return undef;
my $tp = join '' => map{('a'..'z','A'..'Z','0'..'9')[rand 62]} 0..49;
$sth->execute($name,time(),time(),$owner,$tp,$config->{realm}) || return undef;
$self->app->log->info("room $name created by " . $self->session('name'));
return 1;
};
helper get_room => sub {
my $self = shift;
my ($name) = @_;
my $sth = eval { $self->db->prepare("SELECT * from rooms where name=?;") } || return undef;
$sth->execute($name) || return undef;
return $sth->fetchall_hashref('name')->{$name};
};
helper lock_room => sub {
my $self = shift;
my ($name,$lock) = @_;
return undef unless ( %{ $self->get_room($name) });
return undef unless ($lock =~ m/^0|1$/);
my $sth = eval { $self->db->prepare("UPDATE rooms SET locked=? where name=?;") } || return undef;
$sth->execute($lock,$name) || return undef;
my $action = ($lock eq '1') ? 'locked':'unlocked';
$self->app->log->info("room $name $action by " . $self->session('name'));
return 1;
};
helper add_participant => sub {
my $self = shift;
my ($name,$participant) = @_;
my $room = $self->get_room($name) || return undef;
my $sth = eval { $self->db->prepare("INSERT IGNORE INTO participants (id,participant) VALUES (?,?);") } || return undef;
$sth->execute($room->{id},$participant) || return undef;
$self->app->log->info($self->session('name') . " joined the room $name");
return 1;
};
helper remove_participant => sub {
my $self = shift;
my ($name,$participant) = @_;
my $room = $self->get_room($name) || return undef;
my $sth = eval { $self->db->prepare("DELETE FROM participants WHERE id=? AND participant=?;") } || return undef;
$sth->execute($room->{id},$participant) || return undef;
$self->app->log->info($self->session('name') . " leaved the room $name");
return 1;
};
helper get_participants => sub {
my $self = shift;
my ($name) = @_;
my $room = $self->get_room($name) || return undef;
my $sth = eval { $self->db->prepare("SELECT participant FROM participants WHERE id=?;") } || return undef;
$sth->execute($room->{id}) || return undef;
my @res;
while(my @row = $sth->fetchrow_array){
push @res, $row[0];
}
return @res;
};
helper has_joined => sub {
my $self = shift;
my ($session,$name) = @_;
my $ret = 0;
my $sth = eval { $self->db->prepare("SELECT * FROM rooms WHERE name=? AND id IN (SELECT id FROM participants WHERE participant=?)") } || return undef;
$sth->execute($name,$session) || return undef;
$ret = 1 if ($sth->rows > 0);
return $ret;
};
helper delete_rooms => sub {
my $self = shift;
$self->app->log->debug('Removing unused rooms');
eval {
my $timeout = time()-$config->{inactivityTimeout};
$self->db->do("DELETE FROM participants WHERE id IN (SELECT id FROM rooms WHERE activity_timestamp < $timeout AND persistent='0');");
$self->db->do("DELETE FROM rooms WHERE activity_timestamp < $timeout AND persistent='0';");
} || return undef;
return 1;
};
helper ping_room => sub {
my $self = shift;
my ($name) = @_;
return undef unless ( %{ $self->get_room($name) });
my $sth = eval { $self->db->prepare("UPDATE rooms SET activity_timestamp=? where name=?;") } || return undef;
$sth->execute(time(),$name) || return undef;
$self->app->log->debug($self->session('name') . " pinged the room $name");
return 1;
};
# Check if this name is a valid room name
helper valid_room_name => sub {
my $self = shift;
my ($name) = @_;
my $ret = undef;
my $len = length $name;
# A few names are reserved
my @reserved = qw(about help feedback goodbye admin create localize action missing dies);
if ($len > 0 && $len < 50 && $name =~ m/^[\w\-]+$/ && !grep { $name eq $_ } @reserved){
$ret = 1;
}
return $ret;
};
# Generate a random name
helper get_random_name => sub {
my $self = shift;
my $name = join '' => map{('a'..'z','0'..'9')[rand 36]} 0..9;
# Get another one if already taken
while ($self->get_room($name)){
$name = $self->get_random_name();
}
return $name;
};
any '/' => 'index';
get '/about' => sub {
my $self = shift;
$self->stash( components => $components );
} => 'about';
get '/help' => 'help';
get '/feedback' => 'feedback';
post '/feedback' => sub {
my $self = shift;
my $email = $self->param('email') || '';
my $comment = $self->param('comment');
$self->email(
header => [
Subject => encode("MIME-Header", $self->l("FEEDBACK_FROM_VROOM")),
To => $config->{feedbackRecipient}
],
data => [
template => 'feedback',
email => $email,
comment => $comment
],
);
$self->redirect_to($self->url_for('feedback_thanks'));
};
get 'feedback_thanks' => 'feedback_thanks';
get '/goodby/(:room)' => sub {
my $self = shift;
my $room = $self->stash('room');
$self->remove_participant($room,$self->session('name'));
$self->logout;
} => 'goodby';
# This handler creates a new room
post '/create' => sub {
my $self = shift;
$self->res->headers->cache_control('max-age=1, no-cache');
my $name = $self->param('roomName') || $self->get_random_name();
$self->login;
unless ($self->valid_room_name($name)){
return $self->render('error',
room => $name,
msg => $self->l('ERROR_NAME_INVALID'),
err => 'ERROR_NAME_INVALID'
);
}
$self->delete_rooms;
unless ($self->create_room($name,$self->session('name'))){
return $self->render('error',
room => $name,
msg => $self->l('ERROR_NAME_CONFLICT'),
err => 'ERROR_NAME_CONFLICT'
);
}
else{
$self->redirect_to($self->url_for('/') . $name);
}
};
# Translation for JS resources
# As there's no way to list all the available translated strings
# JS sends us the list it wants as a JSON object
# and we sent it back once localized
post '/localize' => sub {
my $self = shift;
my $strings = Mojo::JSON->new->decode($self->param('strings'));
foreach my $string (keys %$strings){
$strings->{$string} = $self->l($string);
}
return $self->render(json => $strings);
};
get '/(*room)' => sub {
my $self = shift;
my $room = $self->stash('room');
# Redirect to lower case
if ($room ne lc $room){
$self->redirect_to($self->url_for('/') . lc $room);
}
$self->delete_rooms;
# Not auth yet, probably a guest
$self->login;
unless ($self->valid_room_name($room)){
return $self->render('error',
msg => $self->l('ERROR_NAME_INVALID'),
err => 'ERROR_NAME_INVALID',
room => $room
);
}
my $data = $self->get_room($room);
unless ($data){
return $self->render('error',
err => 'ERROR_ROOM_s_DOESNT_EXIST',
msg => sprintf ($self->l("ERROR_ROOM_s_DOESNT_EXIST"), $room),
room => $room
);
}
$self->cookie(vroomsession => encode_base64($self->session('name') . ':' . $data->{name} . ':' . $data->{token}, ''), {expires => time + 60});
my @participants = $self->get_participants($room);
if ($data->{'locked'}){
unless (($self->session('name') eq $data->{'owner'}) || (grep { $_ eq $self->session('name') } @participants )){
return $self->render('error',
msg => sprintf($self->l("ERROR_ROOM_s_LOCKED"), $room),
err => 'ERROR_ROOM_s_LOCKED',
room => $room
);
}
}
# Add this user to the participants table
unless($self->add_participant($room,$self->session('name'))){
return $self->render('error',
msg => $self->l('ERROR_OCCURED'),
err => 'ERROR_OCCURED',
room => $room
);
}
$self->stash(locked => $data->{locked} ? 'checked':'',
turnPassword => $data->{token});
$self->render('join');
};
post '/action' => sub {
my $self = shift;
my $action = $self->param('action');
my $room = $self->param('room') || "";
if (!$self->session('name') || !$self->has_joined($self->session('name'), $room)){
return $self->render(
json => {
msg => $self->l('ERROR_NOT_LOGGED_IN'),
},
status => 403
);
}
$self->stash(room => $room);
return $self->render(
json => {
msg => sprintf ($self->l("ERROR_ROOM_s_DOESNT_EXIST"), $room)
},
status => '500'
) unless ($self->get_room($room));
if ($action eq 'invite'){
my $rcpt = $self->param('recipient');
$self->email(
header => [
Subject => encode("MIME-Header", $self->l("EMAIL_INVITATION")),
To => $rcpt
],
content_type => 'multipart/alternative',
data => [
template => 'invite',
room => $room
],
) ||
return $self->render(
json => {
msg => $self->l('ERROR_OCCURED'),
},
status => 500
);
$self->app->log->info($self->session('name') . " sent an invitation for room $room to $rcpt");
$self->render(
json => {
msg => sprintf($self->l('INVITE_SENT_TO_s'), $rcpt)
}
);
}
if ($action =~ m/(un)?lock/){
my ($lock,$success);
if ($action eq 'lock'){
$lock = 1;
$success = $self->l('ROOM_LOCKED');
}
else{
$lock = 0;
$success = $self->l('ROOM_UNLOCKED');
}
my $room = $self->param('room');
my $res = $self->lock_room($room,$lock);
unless ($res){
return $self->render(
json => {
msg => $self->l('ERROR_OCCURED'),
},
status => '500'
);
}
return $self->render(
json => {
msg => $success,
}
);
}
elsif ($action eq 'ping'){
my $res = $self->ping_room($room);
# Cleanup expired rooms every ~10 pings
if ((int (rand 100)) <= 10){
$self->delete_rooms;
}
if (!$res){
return $self->render(
json => {
msg => $self->l('ERROR_OCCURED'),
},
status => '500'
);
}
else{
return $self->render(
json => {
msg => '',
}
);
}
}
};
# Not found (404)
get '/missing' => sub { shift->render('does_not_exist') };
# Exception (500)
get '/dies' => sub { die 'Intentional error' };
push @{app->renderer->paths}, '../templates/'.$config->{template};
app->secret($config->{secret});
app->sessions->secure(1);
app->sessions->cookie_name('vroom');
app->start;