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490 lines
18 KiB
490 lines
18 KiB
10 years ago
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#!/usr/bin/env perl
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use strict;
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use warnings;
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use 5.010; # //
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use IO::Socket::SSL qw(SSL_VERIFY_NONE);
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use IO::Async::Loop;
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use Net::Async::WebSocket::Client;
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use Net::Async::HTTP;
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use Net::Async::HTTP::Server;
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use JSON;
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use YAML;
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use Data::UUID;
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use Getopt::Long;
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use Data::Dumper;
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use URI::Encode qw(uri_encode uri_decode);
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binmode STDOUT, ":encoding(UTF-8)";
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binmode STDERR, ":encoding(UTF-8)";
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my $msisdn_to_matrix = {
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'447417892400' => '@matthew:matrix.org',
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};
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my $matrix_to_msisdn = {};
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foreach (keys %$msisdn_to_matrix) {
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$matrix_to_msisdn->{$msisdn_to_matrix->{$_}} = $_;
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}
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my $loop = IO::Async::Loop->new;
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# Net::Async::HTTP + SSL + IO::Poll doesn't play well. See
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# https://rt.cpan.org/Ticket/Display.html?id=93107
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# ref $loop eq "IO::Async::Loop::Poll" and
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# warn "Using SSL with IO::Poll causes known memory-leaks!!\n";
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GetOptions(
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'C|config=s' => \my $CONFIG,
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'eval-from=s' => \my $EVAL_FROM,
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) or exit 1;
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if( defined $EVAL_FROM ) {
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# An emergency 'eval() this file' hack
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$SIG{HUP} = sub {
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my $code = do {
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open my $fh, "<", $EVAL_FROM or warn( "Cannot read - $!" ), return;
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local $/; <$fh>
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};
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eval $code or warn "Cannot eval() - $@";
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};
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}
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defined $CONFIG or die "Must supply --config\n";
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my %CONFIG = %{ YAML::LoadFile( $CONFIG ) };
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my %MATRIX_CONFIG = %{ $CONFIG{matrix} };
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# No harm in always applying this
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$MATRIX_CONFIG{SSL_verify_mode} = SSL_VERIFY_NONE;
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my $bridgestate = {};
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my $roomid_by_callid = {};
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my $sessid = lc new Data::UUID->create_str();
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my $as_token = $CONFIG{"matrix-bot"}->{as_token};
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my $hs_domain = $CONFIG{"matrix-bot"}->{domain};
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my $http = Net::Async::HTTP->new();
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$loop->add( $http );
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sub create_virtual_user
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{
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my ($localpart) = @_;
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my ( $response ) = $http->do_request(
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method => "POST",
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uri => URI->new(
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$CONFIG{"matrix"}->{server}.
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"/_matrix/client/api/v1/register?".
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"access_token=$as_token&user_id=$localpart"
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),
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content_type => "application/json",
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content => <<EOT
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{
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"type": "m.login.application_service",
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"user": "$localpart"
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}
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EOT
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)->get;
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warn $response->as_string if ($response->code != 200);
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}
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my $http_server = Net::Async::HTTP::Server->new(
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on_request => sub {
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my $self = shift;
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my ( $req ) = @_;
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my $response;
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my $path = uri_decode($req->path);
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warn("request: $path");
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if ($path =~ m#/users/\@(\+.*)#) {
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# when queried about virtual users, auto-create them in the HS
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my $localpart = $1;
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create_virtual_user($localpart);
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$response = HTTP::Response->new( 200 );
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$response->add_content('{}');
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$response->content_type( "application/json" );
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}
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elsif ($path =~ m#/transactions/(.*)#) {
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my $event = JSON->new->decode($req->body);
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print Dumper($event);
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my $room_id = $event->{room_id};
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my %dp = %{$CONFIG{'verto-dialog-params'}};
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$dp{callID} = $bridgestate->{$room_id}->{callid};
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if ($event->{type} eq 'm.room.membership') {
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my $membership = $event->{content}->{membership};
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my $state_key = $event->{state_key};
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my $room_id = $event->{state_id};
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if ($membership eq 'invite') {
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# autojoin invites
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my ( $response ) = $http->do_request(
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method => "POST",
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uri => URI->new(
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$CONFIG{"matrix"}->{server}.
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"/_matrix/client/api/v1/rooms/$room_id/join?".
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"access_token=$as_token&user_id=$state_key"
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),
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content_type => "application/json",
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content => "{}",
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)->get;
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warn $response->as_string if ($response->code != 200);
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}
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}
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elsif ($event->{type} eq 'm.call.invite') {
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my $room_id = $event->{room_id};
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$bridgestate->{$room_id}->{matrix_callid} = $event->{content}->{call_id};
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$bridgestate->{$room_id}->{callid} = lc new Data::UUID->create_str();
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$bridgestate->{$room_id}->{sessid} = $sessid;
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# $bridgestate->{$room_id}->{offer} = $event->{content}->{offer}->{sdp};
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my $offer = $event->{content}->{offer}->{sdp};
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# $bridgestate->{$room_id}->{gathered_candidates} = 0;
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$roomid_by_callid->{ $bridgestate->{$room_id}->{callid} } = $room_id;
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# no trickle ICE in verto apparently
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my $f = send_verto_json_request("verto.invite", {
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"sdp" => $offer,
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"dialogParams" => \%dp,
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"sessid" => $bridgestate->{$room_id}->{sessid},
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});
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$self->adopt_future($f);
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}
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# elsif ($event->{type} eq 'm.call.candidates') {
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# # XXX: this could fire for both matrix->verto and verto->matrix calls
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# # and races as it collects candidates. much better to just turn off
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# # candidate gathering in the webclient entirely for now
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#
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# my $room_id = $event->{room_id};
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# # XXX: compare call IDs
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# if (!$bridgestate->{$room_id}->{gathered_candidates}) {
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# $bridgestate->{$room_id}->{gathered_candidates} = 1;
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# my $offer = $bridgestate->{$room_id}->{offer};
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# my $candidate_block = "";
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# foreach (@{$event->{content}->{candidates}}) {
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# $candidate_block .= "a=" . $_->{candidate} . "\r\n";
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# }
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# # XXX: collate using the right m= line - for now assume audio call
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# $offer =~ s/(a=rtcp.*[\r\n]+)/$1$candidate_block/;
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#
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# my $f = send_verto_json_request("verto.invite", {
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# "sdp" => $offer,
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# "dialogParams" => \%dp,
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# "sessid" => $bridgestate->{$room_id}->{sessid},
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# });
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# $self->adopt_future($f);
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# }
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# else {
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# # ignore them, as no trickle ICE, although we might as well
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# # batch them up
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# # foreach (@{$event->{content}->{candidates}}) {
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# # push @{$bridgestate->{$room_id}->{candidates}}, $_;
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# # }
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# }
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# }
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elsif ($event->{type} eq 'm.call.answer') {
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# grab the answer and relay it to verto as a verto.answer
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my $room_id = $event->{room_id};
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my $answer = $event->{content}->{answer}->{sdp};
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my $f = send_verto_json_request("verto.answer", {
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"sdp" => $answer,
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"dialogParams" => \%dp,
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"sessid" => $bridgestate->{$room_id}->{sessid},
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});
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$self->adopt_future($f);
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}
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elsif ($event->{type} eq 'm.call.hangup') {
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my $room_id = $event->{room_id};
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if ($bridgestate->{$room_id}->{matrix_callid} eq $event->{content}->{call_id}) {
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my $f = send_verto_json_request("verto.bye", {
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"dialogParams" => \%dp,
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"sessid" => $bridgestate->{$room_id}->{sessid},
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});
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$self->adopt_future($f);
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}
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else {
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warn "Ignoring unrecognised callid: ".$event->{content}->{call_id};
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}
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}
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else {
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warn "Unhandled event: $event->{type}";
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}
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$response = HTTP::Response->new( 200 );
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$response->add_content('{}');
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$response->content_type( "application/json" );
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}
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else {
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warn "Unhandled path: $path";
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$response = HTTP::Response->new( 404 );
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}
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$req->respond( $response );
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},
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);
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$loop->add( $http_server );
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$http_server->listen(
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addr => { family => "inet", socktype => "stream", port => 8009 },
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on_listen_error => sub { die "Cannot listen - $_[-1]\n" },
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);
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my $bot_verto = Net::Async::WebSocket::Client->new(
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on_frame => sub {
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my ( $self, $frame ) = @_;
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warn "[Verto] receiving $frame";
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on_verto_json($frame);
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},
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);
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$loop->add( $bot_verto );
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my $verto_connecting = $loop->new_future;
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$bot_verto->connect(
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%{ $CONFIG{"verto-bot"} },
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on_connected => sub {
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warn("[Verto] connected to websocket");
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if (not $verto_connecting->is_done) {
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$verto_connecting->done($bot_verto);
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send_verto_json_request("login", {
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'login' => $CONFIG{'verto-dialog-params'}{'login'},
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'passwd' => $CONFIG{'verto-config'}{'passwd'},
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'sessid' => $sessid,
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});
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}
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},
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on_connect_error => sub { die "Cannot connect to verto - $_[-1]" },
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on_resolve_error => sub { die "Cannot resolve to verto - $_[-1]" },
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);
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# die Dumper($verto_connecting);
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my $as_url = $CONFIG{"matrix-bot"}->{as_url};
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Future->needs_all(
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$http->do_request(
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method => "POST",
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uri => URI->new( $CONFIG{"matrix"}->{server}."/_matrix/appservice/v1/register" ),
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content_type => "application/json",
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content => <<EOT
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{
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"as_token": "$as_token",
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"url": "$as_url",
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"namespaces": { "users": ["\@\\\\+.*"] }
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}
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EOT
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),
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$verto_connecting,
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)->get;
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$loop->attach_signal(
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PIPE => sub { warn "pipe\n" }
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);
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$loop->attach_signal(
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INT => sub { $loop->stop },
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);
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$loop->attach_signal(
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TERM => sub { $loop->stop },
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);
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eval {
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$loop->run;
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} or my $e = $@;
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die $e if $e;
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exit 0;
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{
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my $json_id;
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my $requests;
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sub send_verto_json_request
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{
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$json_id ||= 1;
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my ($method, $params) = @_;
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my $json = {
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jsonrpc => "2.0",
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method => $method,
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params => $params,
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id => $json_id,
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};
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my $text = JSON->new->encode( $json );
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warn "[Verto] sending $text";
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$bot_verto->send_frame ( $text );
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my $request = $loop->new_future;
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$requests->{$json_id} = $request;
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$json_id++;
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return $request;
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}
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sub send_verto_json_response
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{
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my ($result, $id) = @_;
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my $json = {
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jsonrpc => "2.0",
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result => $result,
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id => $id,
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};
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my $text = JSON->new->encode( $json );
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warn "[Verto] sending $text";
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$bot_verto->send_frame ( $text );
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}
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sub on_verto_json
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{
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my $json = JSON->new->decode( $_[0] );
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if ($json->{method}) {
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if (($json->{method} eq 'verto.answer' && $json->{params}->{sdp}) ||
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$json->{method} eq 'verto.media') {
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my $caller = $json->{dialogParams}->{caller_id_number};
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my $callee = $json->{dialogParams}->{destination_number};
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my $caller_user = '@+' . $caller . ':' . $hs_domain;
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my $callee_user = $msisdn_to_matrix->{$callee} || warn "unrecogised callee: $callee";
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my $room_id = $roomid_by_callid->{$json->{params}->{callID}};
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if ($json->{params}->{sdp}) {
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|
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$http->do_request(
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method => "POST",
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|
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uri => URI->new(
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$CONFIG{"matrix"}->{server}.
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"/_matrix/client/api/v1/send/m.call.answer?".
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|
|
"access_token=$as_token&user_id=$caller_user"
|
||
|
|
),
|
||
|
|
content_type => "application/json",
|
||
|
|
content => JSON->new->encode({
|
||
|
|
call_id => $bridgestate->{$room_id}->{matrix_callid},
|
||
|
|
version => 0,
|
||
|
|
answer => {
|
||
|
|
sdp => $json->{params}->{sdp},
|
||
|
|
type => "answer",
|
||
|
|
},
|
||
|
|
}),
|
||
|
|
)->then( sub {
|
||
|
|
send_verto_json_response( {
|
||
|
|
method => $json->{method},
|
||
|
|
}, $json->{id});
|
||
|
|
})->get;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif ($json->{method} eq 'verto.invite') {
|
||
|
|
my $caller = $json->{dialogParams}->{caller_id_number};
|
||
|
|
my $callee = $json->{dialogParams}->{destination_number};
|
||
|
|
my $caller_user = '@+' . $caller . ':' . $hs_domain;
|
||
|
|
my $callee_user = $msisdn_to_matrix->{$callee} || warn "unrecogised callee: $callee";
|
||
|
|
|
||
|
|
my $alias = ($caller lt $callee) ? ($caller.'-'.$callee) : ($callee.'-'.$caller);
|
||
|
|
my $room_id;
|
||
|
|
|
||
|
|
# create a virtual user for the caller if needed.
|
||
|
|
create_virtual_user($caller);
|
||
|
|
|
||
|
|
# create a room of form #peer-peer and invite the callee
|
||
|
|
$http->do_request(
|
||
|
|
method => "POST",
|
||
|
|
uri => URI->new(
|
||
|
|
$CONFIG{"matrix"}->{server}.
|
||
|
|
"/_matrix/client/api/v1/createRoom?".
|
||
|
|
"access_token=$as_token&user_id=$caller_user"
|
||
|
|
),
|
||
|
|
content_type => "application/json",
|
||
|
|
content => JSON->new->encode({
|
||
|
|
room_alias_name => $alias,
|
||
|
|
invite => [ $callee_user ],
|
||
|
|
}),
|
||
|
|
)->then( sub {
|
||
|
|
my ( $response ) = @_;
|
||
|
|
my $resp = JSON->new->decode($response->content);
|
||
|
|
$room_id = $resp->{room_id};
|
||
|
|
$roomid_by_callid->{$json->{params}->{callID}} = $room_id;
|
||
|
|
})->get;
|
||
|
|
|
||
|
|
# join it
|
||
|
|
my ($response) = $http->do_request(
|
||
|
|
method => "POST",
|
||
|
|
uri => URI->new(
|
||
|
|
$CONFIG{"matrix"}->{server}.
|
||
|
|
"/_matrix/client/api/v1/join/$room_id?".
|
||
|
|
"access_token=$as_token&user_id=$caller_user"
|
||
|
|
),
|
||
|
|
content_type => "application/json",
|
||
|
|
content => '{}',
|
||
|
|
)->get;
|
||
|
|
|
||
|
|
$bridgestate->{$room_id}->{matrix_callid} = lc new Data::UUID->create_str();
|
||
|
|
$bridgestate->{$room_id}->{callid} = $json->{dialogParams}->{callID};
|
||
|
|
$bridgestate->{$room_id}->{sessid} = $sessid;
|
||
|
|
|
||
|
|
# put the m.call.invite in there
|
||
|
|
$http->do_request(
|
||
|
|
method => "POST",
|
||
|
|
uri => URI->new(
|
||
|
|
$CONFIG{"matrix"}->{server}.
|
||
|
|
"/_matrix/client/api/v1/send/m.call.invite?".
|
||
|
|
"access_token=$as_token&user_id=$caller_user"
|
||
|
|
),
|
||
|
|
content_type => "application/json",
|
||
|
|
content => JSON->new->encode({
|
||
|
|
call_id => $bridgestate->{$room_id}->{matrix_callid},
|
||
|
|
version => 0,
|
||
|
|
answer => {
|
||
|
|
sdp => $json->{params}->{sdp},
|
||
|
|
type => "offer",
|
||
|
|
},
|
||
|
|
}),
|
||
|
|
)->then( sub {
|
||
|
|
# acknowledge the verto
|
||
|
|
send_verto_json_response( {
|
||
|
|
method => $json->{method},
|
||
|
|
}, $json->{id});
|
||
|
|
})->get;
|
||
|
|
}
|
||
|
|
elsif ($json->{method} eq 'verto.bye') {
|
||
|
|
my $caller = $json->{dialogParams}->{caller_id_number};
|
||
|
|
my $callee = $json->{dialogParams}->{destination_number};
|
||
|
|
my $caller_user = '@+' . $caller . ':' . $hs_domain;
|
||
|
|
my $callee_user = $msisdn_to_matrix->{$callee} || warn "unrecogised callee: $callee";
|
||
|
|
my $room_id = $roomid_by_callid->{$json->{params}->{callID}};
|
||
|
|
|
||
|
|
# put the m.call.hangup into the room
|
||
|
|
$http->do_request(
|
||
|
|
method => "POST",
|
||
|
|
uri => URI->new(
|
||
|
|
$CONFIG{"matrix"}->{server}.
|
||
|
|
"/_matrix/client/api/v1/send/m.call.hangup?".
|
||
|
|
"access_token=$as_token&user_id=$caller_user"
|
||
|
|
),
|
||
|
|
content_type => "application/json",
|
||
|
|
content => JSON->new->encode({
|
||
|
|
call_id => $bridgestate->{$room_id}->{matrix_callid},
|
||
|
|
version => 0,
|
||
|
|
}),
|
||
|
|
)->then( sub {
|
||
|
|
# acknowledge the verto
|
||
|
|
send_verto_json_response( {
|
||
|
|
method => $json->{method},
|
||
|
|
}, $json->{id});
|
||
|
|
})->get;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
warn ("[Verto] unhandled method: " . $json->{method});
|
||
|
|
send_verto_json_response( {
|
||
|
|
method => $json->{method},
|
||
|
|
}, $json->{id});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif ($json->{result}) {
|
||
|
|
$requests->{$json->{id}}->done($json->{result});
|
||
|
|
}
|
||
|
|
elsif ($json->{error}) {
|
||
|
|
$requests->{$json->{id}}->fail($json->{error}->{message}, $json->{error});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|