Files
squeezelite-esp32/plugin/SqueezeESP32/Plugin.pm
2021-04-03 21:27:36 -07:00

248 lines
7.4 KiB
Perl

package Plugins::SqueezeESP32::Plugin;
use strict;
use base qw(Slim::Plugin::Base);
use File::Basename qw(basename);
use File::Spec::Functions qw(catfile);
use JSON::XS::VersionOneAndTwo;
use Slim::Utils::Prefs;
use Slim::Utils::Log;
use Slim::Web::ImageProxy;
my $prefs = preferences('plugin.squeezeesp32');
my $log = Slim::Utils::Log->addLogCategory({
'category' => 'plugin.squeezeesp32',
'defaultLevel' => 'INFO',
'description' => 'PLUGIN_SQUEEZEESP32',
});
use constant GITHUB_ASSET_URI => "https://api.github.com/repos/sle118/squeezelite-esp32/releases/assets/";
use constant GITHUB_DOWNLOAD_URI => "https://github.com/sle118/squeezelite-esp32/releases/download/";
my $FW_DOWNLOAD_ID_REGEX = qr|plugins/SqueezeESP32/firmware/(-?\d+)|;
my $FW_DOWNLOAD_REGEX = qr|plugins/SqueezeESP32/firmware/([-a-z0-9-/.]+\.bin)$|i;
my $FW_FILENAME_REGEX = qr/^squeezelite-esp32-.*\.bin(\.tmp)?$/;
# migrate 'eq' pref, as that's a reserved word and could cause problems in the future
$prefs->migrateClient(1, sub {
my ($cprefs, $client) = @_;
$cprefs->set('equalizer', $cprefs->get('eq'));
$cprefs->remove('eq');
1;
});
$prefs->migrateClient(2, sub {
my ($cprefs, $client) = @_;
$cprefs->set('artwork', undef) if $cprefs->get('artwork') && ref $cprefs->get('artwork') ne 'HASH';
1;
});
$prefs->setChange(sub {
$_[2]->send_equalizer;
}, 'equalizer');
sub initPlugin {
my $class = shift;
if ( main::WEBUI ) {
require Plugins::SqueezeESP32::PlayerSettings;
Plugins::SqueezeESP32::PlayerSettings->new;
# require Plugins::SqueezeESP32::Settings;
# Plugins::SqueezeESP32::Settings->new;
}
$class->SUPER::initPlugin(@_);
# no name can be a subset of others due to a bug in addPlayerClass
Slim::Networking::Slimproto::addPlayerClass($class, 100, 'squeezeesp32-basic', { client => 'Plugins::SqueezeESP32::Player', display => 'Plugins::SqueezeESP32::Graphics' });
Slim::Networking::Slimproto::addPlayerClass($class, 101, 'squeezeesp32-graphic', { client => 'Plugins::SqueezeESP32::Player', display => 'Slim::Display::NoDisplay' });
main::INFOLOG && $log->is_info && $log->info("Added class 100 and 101 for SqueezeESP32");
# register a command to set the EQ - without saving the values! Send params as single comma separated list of values
Slim::Control::Request::addDispatch(['squeezeesp32', 'seteq', '_eq'], [1, 0, 0, \&setEQ]);
# Note for some forgetful know-it-all: we need to wrap the callback to make it unique. Otherwise subscriptions would overwrite each other.
Slim::Control::Request::subscribe( sub { onNotification(@_) }, [ ['newmetadata'] ] );
Slim::Control::Request::subscribe( sub { onNotification(@_) }, [ ['playlist'], ['open', 'newsong'] ]);
Slim::Control::Request::subscribe( \&onStopClear, [ ['playlist'], ['stop', 'clear'] ]);
Slim::Web::Pages->addRawFunction($FW_DOWNLOAD_ID_REGEX, \&handleFirmwareDownload);
Slim::Web::Pages->addRawFunction($FW_DOWNLOAD_REGEX, \&handleFirmwareDownloadDirect);
}
sub onStopClear {
my $request = shift;
my $client = $request->client || return;
if ($client->isa('Plugins::SqueezeESP32::Player')) {
$client->clear_artwork(0, $request->getRequestString());
}
}
sub onNotification {
my $request = shift;
my $client = $request->client || return;
foreach my $player ($client->syncGroupActiveMembers) {
next unless $player->isa('Plugins::SqueezeESP32::Player');
$player->update_artwork;
}
}
sub setEQ {
my $request = shift;
# check this is the correct command.
if ($request->isNotCommand([['squeezeesp32'],['seteq']])) {
$request->setStatusBadDispatch();
return;
}
# get our parameters
my $client = $request->client();
my @eqParams = split(/,/, $request->getParam('_eq') || '');
for (my $x = 0; $x < 10; $x++) {
$eqParams[$x] ||= 0;
}
$client->send_equalizer(\@eqParams);
}
sub handleFirmwareDownload {
my ($httpClient, $response) = @_;
my $request = $response->request;
my $_errorDownloading = sub {
_errorDownloading($httpClient, $response, @_);
};
my $id;
if (!defined $request || !(($id) = $request->uri =~ $FW_DOWNLOAD_ID_REGEX)) {
return $_errorDownloading->(undef, 'Invalid request', $request->uri, 400);
}
# this is the magic number used on the client to figure out whether the plugin does support download proxying
if ($id == -99) {
$response->code(204);
$response->header('Access-Control-Allow-Origin' => '*');
$httpClient->send_response($response);
return Slim::Web::HTTP::closeHTTPSocket($httpClient);
}
Slim::Networking::SimpleAsyncHTTP->new(
sub {
my $http = shift;
my $content = eval { from_json( $http->content ) };
if (!$content || !ref $content) {
$@ && $log->error("Failed to parse response: $@");
return $_errorDownloading->($http);
}
elsif (!$content->{browser_download_url} || !$content->{name}) {
return $_errorDownloading->($http, 'No download URL found');
}
downloadAndStreamFirmware($httpClient, $response, $content->{browser_download_url}, $content->{name});
},
$_errorDownloading,
{
timeout => 10,
cache => 1,
expires => 86400
}
)->get(GITHUB_ASSET_URI . $id);
return;
}
sub handleFirmwareDownloadDirect {
my ($httpClient, $response) = @_;
my $request = $response->request;
my $_errorDownloading = sub {
_errorDownloading($httpClient, $response, @_);
};
my $path;
if (!defined $request || !(($path) = $request->uri =~ $FW_DOWNLOAD_REGEX)) {
return $_errorDownloading->(undef, 'Invalid request', $request->uri, 400);
}
main::INFOLOG && $log->is_info && $log->info("Requesting firmware from: $path");
downloadAndStreamFirmware($httpClient, $response, GITHUB_DOWNLOAD_URI . $path);
}
sub downloadAndStreamFirmware {
my ($httpClient, $response, $url, $name) = @_;
my $_errorDownloading = sub {
_errorDownloading($httpClient, $response, @_);
};
$name ||= basename($url);
if ($name !~ $FW_FILENAME_REGEX) {
return $_errorDownloading->(undef, 'Unexpected firmware image name: ' . $name, $url, 400);
}
my $updatesDir = Slim::Utils::OSDetect::dirsFor('updates');
my $firmwareFile = catfile($updatesDir, $name);
Slim::Utils::Misc::deleteFiles($updatesDir, $FW_FILENAME_REGEX, $firmwareFile);
if (-f $firmwareFile) {
main::INFOLOG && $log->is_info && $log->info("Found cached firmware version");
$response->code(200);
return Slim::Web::HTTP::sendStreamingFile($httpClient, $response, 'application/octet-stream', $firmwareFile, undef, 1);
}
Slim::Networking::SimpleAsyncHTTP->new(
sub {
my $http = shift;
if ($http->code != 200 || !-e "$firmwareFile.tmp") {
return $_errorDownloading->($http, $http->mess);
}
rename "$firmwareFile.tmp", $firmwareFile or return $_errorDownloading->($http, "Unable to rename temporary $firmwareFile file" );
$response->code(200);
Slim::Web::HTTP::sendStreamingFile($httpClient, $response, 'application/octet-stream', $firmwareFile, undef, 1);
},
$_errorDownloading,
{
saveAs => "$firmwareFile.tmp",
}
)->get($url);
return;
}
sub _errorDownloading {
my ($httpClient, $response, $http, $error, $url, $code) = @_;
$error ||= ($http && $http->error) || 'unknown error';
$url ||= ($http && $http->url) || 'no URL';
$code ||= ($http && $http->code) || 500;
$log->error(sprintf("Failed to get data from Github: %s (%s)", $error || $http->error, $url));
$response->headers->remove_content_headers;
$response->code($code);
$response->content_type('text/plain');
$response->header('Connection' => 'close');
$response->content('');
$httpClient->send_response($response);
Slim::Web::HTTP::closeHTTPSocket($httpClient);
};
1;