patrix/scripts/patrix

#!/usr/bin/perl -w

use strict;
use warnings;
use LWP::UserAgent;
use HTTP::Request;
use JSON qw(from_json to_json);
use Getopt::Long;
use Config::Simple;
use File::HomeDir;
use File::MimeInfo;
use File::Basename;
use URI::Escape;
use Path::Tiny;

our $opt;

GetOptions(
  "user=s"           => \$opt->{user},
  "password=s"       => \$opt->{password},
  "access_token=s"   => \$opt->{access_token},
  "server=s"         => \$opt->{server},
  "room=s"           => \$opt->{room},
  "message=s"        => \$opt->{message},
  "files=s"          => \$opt->{file},
  "debug"            => \$opt->{debug},
  "action=s"         => \$opt->{action},
  "conf=s"           => \$opt->{conf},
  "invite=s@"        => \$opt->{invite},
  "name=s"           => \$opt->{name},
  "alias=s"          => \$opt->{alias},
  "topic=s"          => \$opt->{topic},
  "preset=s"         => \$opt->{preset},
  "visibility=s"     => \$opt->{visibility}
);

if (-e File::HomeDir->my_home . "/.patrixrc" && !$opt->{conf}){
  $opt->{conf} = File::HomeDir->my_home . "/.patrixrc";
  if ($opt->{debug}){
    print "Using default config file $opt->{conf}\n\n";
  }
}
if ($opt->{conf} && -e $opt->{conf}){
  read_conf();
}

my $stdin = 0;
if (!-t STDIN){
  if ($opt->{debug}){
    print "Reading data from stdin\n\n";
  }
  $stdin = 1;
}

# Set defaults
$opt->{server} //= 'matrix.org';
$opt->{action} //= 'send-msg';

# Check we have all the options we need
if ($opt->{action} eq 'get-access-token' && (!$opt->{user} || !$opt->{password})){
  die "You need to provide a valid user and password to get an access token\n\n";
}
elsif (!$opt->{access_token} && (!$opt->{user} || !$opt->{password})){
  die "Test: You need to provide either an access token or a valid user and password\n\n";
}
if ($opt->{action} eq 'send-msg' && (!$opt->{room} || (!$opt->{message} && !$stdin))){
  die "You need to provide a room ID and a message\n\n";
}
if ($opt->{action} eq 'send-file' && (!$opt->{room} || !$opt->{file})){
  die "You need to provide a room ID and a file to send\n\n";
}
if ($opt->{action} eq 'send-file' && $opt->{file} && !-e $opt->{file}){
  die "File $opt->{file} not found\n\n";
}

$opt->{server} = 'https://' . $opt->{server} unless ($opt->{server} =~ m|https?://|);

my $lwp = LWP::UserAgent->new;

# Load values from the config file if it exists
sub read_conf {
  my $cfg = Config::Simple->new;
  $cfg->read($opt->{conf});
  foreach my $param(keys %{$opt}){
    if ($cfg->param('default.' . $param) && !$opt->{$param}){
      $opt->{$param} = $cfg->param('default.' . $param)
    }
  }
}

# Submit user and password the the HS and obtain an access_token
sub login {
  if ( $opt->{debug} ){
    print "Trying to login on $opt->{server} as $opt->{user}\n";
  }
  my $uri = $opt->{server} . '/_matrix/client/r0/login';
  my $req = HTTP::Request->new( 'POST', $uri );
  my $json = {
    type     => 'm.login.password',
    user     => $opt->{user},
    password => $opt->{password}
  };
  $req->header( 'Content-Type' => 'application/json' );
  $req->content( to_json($json) );
  my $resp = $lwp->request( $req );
  if ( $opt->{debug} ){
    print "Login response is\n" .
          to_json(from_json($resp->decoded_content), { pretty => 1 }) .
          "\n\n";
  }
  unless ( $resp->is_success ){
    die "Error login in, please check your credentials\n";
  }
  # Set the access token
  $opt->{access_token} = from_json($resp->decoded_content)->{access_token};
}

# Invalidate the access_token
sub logout {
  if ( $opt->{debug} ){
    print "Trying to logout\n";
  }
  my $uri = $opt->{server} . '/_matrix/client/r0/logout?access_token=' . $opt->{access_token};
  my $req = HTTP::Request->new( 'POST', $uri );
  my $json = {};
  $req->header( 'Content-Type' => 'application/json' );
  $req->content( to_json($json) );
  my $resp = $lwp->request( $req );
  if ($opt->{debug}){
    print "Logout response is\n" .
          to_json(from_json($resp->decoded_content), { pretty => 1 }) .
          "\n\n";
  }
  unless ( $resp->is_success ){
    die "Error login out\n";
  }
}

# Join the specified room, before we can send anything
sub join_room {
  if ($opt->{debug}){
    print "Trying to join room $opt->{room}\n";
  }
  # Room must be escaped. if not and room is an alias, it'll start with # so the access_token won't be sent
  my $uri = $opt->{server} . '/_matrix/client/r0/join/' . uri_escape( $opt->{room} ) . '?access_token=' . $opt->{access_token};
  my $req = HTTP::Request->new( 'POST', $uri );
  my $json = {};
  $req->header( 'Content-Type' => 'application/json' );
  $req->content( to_json($json) );
  my $resp = $lwp->request( $req );
  if ($opt->{debug}){
    print "Joining room response is\n" .
          to_json(from_json($resp->decoded_content), { pretty => 1 }) .
          "\n\n";
  }
  unless ( $resp->is_success ){
    die "Error joining room $opt->{room}\n";
  }
  # Resolve room -> room_id if joined by alias
  my $room_id = from_json($resp->decoded_content)->{room_id};
  $opt->{room} = $room_id if $room_id;
}

# Send a text message (either message or notice as both are similar)
sub send_msg {
  my $uri = $opt->{server} . '/_matrix/client/r0/rooms/' . $opt->{room} . '/send/m.room.message?access_token=' . $opt->{access_token};
  my $req = HTTP::Request->new( 'POST', $uri );
  # Ignore --message if reading from stdin
  if ($stdin){
    $opt->{message} = '';
    while (<STDIN>){
      $opt->{message} .= $_;
    }
  }
  my $json = {
    msgtype => ($opt->{action} eq 'send-notice') ? 'm.notice' : 'm.text',
    body => $opt->{message}
  };
  $req->header( 'Content-Type' => 'application/json' );
  $req->content( to_json($json) );
  my $resp = $lwp->request( $req );
  if ($opt->{debug}){
    print "Sending message response is\n" .
          to_json(from_json($resp->decoded_content), { pretty => 1 }) .
          "\n\n";
  }
  unless ( $resp->is_success ){
    die "Error sending message to $opt->{room}\n";
  }
}

# Send a file to the room
sub send_file {
  # Sending a file is a 2 steps operation. First we need to upload the file to the media store
  # And then we post the uri on the room
  if ($opt->{debug}){
    print "Uploading file $opt->{file} to the media store\n\n";
  }
  my $uri = $opt->{server} . '/_matrix/media/v1/upload?access_token=' . $opt->{access_token} . '&filename=' . basename($opt->{file});
  my $req = HTTP::Request->new( 'POST', $uri );
  $req->header( 'Content-Type' => mimetype $opt->{file} );
  # Not ideal as it won't work for huge files but...
  $req->content( path( $opt->{file} )->slurp_raw );
  my $resp = $lwp->request( $req );
  if ($opt->{debug}){
    print "File upload response is\n" .
          to_json(from_json($resp->decoded_content), { pretty => 1 }) .
          "\n\n";
  }
  unless ( $resp->is_success ){
    die "Error uploading file\n";
  }
  # If everything went well, the server replied with the URI of our file, which we can
  # now post on the room
  my $file_uri = from_json($resp->decoded_content)->{content_uri};
  unless ($file_uri){
    die "Server did not sent the file URI\n";
  }
  if ($opt->{debug}){
    print "File uploaded, with the URI $file_uri\n";
    print "Now Sending the file link to the room $opt->{room}\n\n";
  }
  # Now lets post a new message with the URI of the file
  $uri = $opt->{server} . '/_matrix/client/r0/rooms/' . $opt->{room} . '/send/m.room.message?access_token=' . $opt->{access_token};
  $req = HTTP::Request->new( 'POST', $uri );
  my $json = {
    msgtype  => 'm.file',
    body     => basename($opt->{file}),
    filename => basename($opt->{file}),
    info     => {
      mimetype => mimetype $opt->{file},
      size     => (stat $opt->{file})[7]
    },
    url      => $file_uri
  };
  $req->header( 'Content-Type' => 'application/json' );
  $req->content( to_json($json) );
  $resp = $lwp->request( $req );
  if ($opt->{debug}){
    print "Posting file link to the room reseponse is\n" .
          to_json(from_json($resp->decoded_content), { pretty => 1 }) .
          "\n\n";
  }
  unless ( $resp->is_success ){
    die "Error posting file link on room $opt->{room}\n";
  }
}

# List public rooms
# Note that there's no pagination handling yet, so you might not have all the results
sub list_room {
  if ($opt->{debug}){
    print "Fetching list of public rooms on $opt->{server}\n";
  }
  my $uri = $opt->{server} . '/_matrix/client/r0/publicRooms?access_token=' . $opt->{access_token};
  my $req = HTTP::Request->new( 'POST', $uri );
  my $json = {};
  $req->header( 'Content-Type' => 'application/json' );
  $req->content( to_json($json) );
  my $resp = $lwp->request( $req );
  unless ( $resp->is_success ){
    die "Error joining room $opt->{room}\n";
  }
  if ($opt->{debug}){
    print "List rooms response is\n" .
          to_json(from_json($resp->decoded_content), { pretty => 1 }) .
          "\n\n";
  }
  print "Existing Rooms:\n";
  foreach (@{from_json($resp->decoded_content)->{chunk}}){
    print "  * " . $_->{room_id};
    print ' (' . $_->{canonical_alias} . ')' if (defined $_->{canonical_alias});
    print "\n";
  }
}

# Create a new room
sub create_room {
  if ($opt->{debug}){
    print "Creating a new room on $opt->{server}\n";
  }
  my $uri = $opt->{server} . '/_matrix/client/r0/createRoom?access_token=' . $opt->{access_token};
  my $req = HTTP::Request->new( 'POST', $uri );
  my $json = {};
  $json->{room_alias_name} = $opt->{alias}      if $opt->{alias};
  $json->{topic}           = $opt->{topic}      if $opt->{topic};
  $json->{name}            = $opt->{name}       if $opt->{name};
  $json->{invite}          = $opt->{invite}     if $opt->{invite};
  $json->{preset}          = $opt->{preset}     if $opt->{preset};
  $json->{visibility}      = $opt->{visibility} if $opt->{visbility};
  $req->header( 'Content-Type' => 'application/json' );
  $req->content( to_json($json) );
  my $resp = $lwp->request( $req );
  if ($opt->{debug}){
    print "Room creation response is\n" .
          to_json(from_json($resp->decoded_content), { pretty => 1 }) .
          "\n\n";
  }
  unless ( $resp->is_success ){
    die "Error creating room on $opt->{server}\n";
  }
  my $room_id = from_json($resp->decoded_content)->{room_id};
  print "$room_id\n";
}

# Should we logout at the end ? Only if we used login and pass
# If we used an access_token, we don't want it to be invalidated
my $must_logout = ($opt->{access_token}) ? 0 : 1;

# If we don't have an access token, we must get one now
if (!$opt->{access_token}){
  login();
}
if ($opt->{action} eq 'get-access-token'){
  print $opt->{access_token} . "\n";
}
elsif ($opt->{action} eq 'get-room-list'){
  list_room();
}
elsif ($opt->{action} =~ m/send\-(msg|message|notice)/){
  join_room();
  send_msg();
}
elsif ($opt->{action} eq 'send-file'){
  join_room();
  send_file();
}
elsif ($opt->{action} eq 'create-room'){
  create_room();
}

logout() if $must_logout;

exit(0);