From 6b368a7c02e5c53447872a030617d46038e10b5d Mon Sep 17 00:00:00 2001
From: Philippe G <philippe44@users.noreply.github.com>
Date: Sun, 4 Apr 2021 15:52:47 -0700
Subject: [PATCH] 0.310 (download cache + battery)

---
 plugin/SqueezeESP32.zip               | Bin 13548 -> 14648 bytes
 plugin/SqueezeESP32/FirmwareHelper.pm | 237 ++++++++++++++++++++++++++
 plugin/SqueezeESP32/Player.pm         |   5 +
 plugin/SqueezeESP32/Plugin.pm         | 147 +---------------
 plugin/SqueezeESP32/install.xml       |   2 +-
 plugin/repo.xml                       |   4 +-
 6 files changed, 248 insertions(+), 147 deletions(-)
 create mode 100644 plugin/SqueezeESP32/FirmwareHelper.pm

diff --git a/plugin/SqueezeESP32.zip b/plugin/SqueezeESP32.zip
index f9bb8cf0d894b7dea5be104c23a807ce806479fe..9180a8fad19304bc02d40563d0475dc18665a570 100644
GIT binary patch
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diff --git a/plugin/SqueezeESP32/FirmwareHelper.pm b/plugin/SqueezeESP32/FirmwareHelper.pm
new file mode 100644
index 00000000..3f0c192e
--- /dev/null
+++ b/plugin/SqueezeESP32/FirmwareHelper.pm
@@ -0,0 +1,237 @@
+package Plugins::SqueezeESP32::FirmwareHelper;
+
+use strict;
+
+use File::Basename qw(basename);
+use File::Spec::Functions qw(catfile);
+use JSON::XS::VersionOneAndTwo;
+
+use Slim::Utils::Log;
+use Slim::Utils::Prefs;
+
+use constant FIRMWARE_POLL_INTERVAL => 3600 * (5 + rand());
+use constant GITHUB_RELEASES_URI => "https://api.github.com/repos/sle118/squeezelite-esp32/releases";
+use constant GITHUB_ASSET_URI => GITHUB_RELEASES_URI . "/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 $FW_FILENAME_REGEX = qr/^squeezelite-esp32-.*\.bin(\.tmp)?$/;
+my $FW_TAG_REGEX = qr/\/(ESP32-A1S|SqueezeAmp|I2S-4MFlash)\.(16|32)\.(\d+)\.(.*)\//;
+
+my $prefs = preferences('plugin.squeezeesp32');
+my $log = logger('plugin.squeezeesp32');
+
+sub init {
+	Slim::Web::Pages->addRawFunction($FW_DOWNLOAD_ID_REGEX, \&handleFirmwareDownload);
+	Slim::Web::Pages->addRawFunction($FW_DOWNLOAD_REGEX, \&handleFirmwareDownloadDirect);
+
+	# start checking for firmware updates
+	Slim::Utils::Timers::setTimer(undef, Time::HiRes::time() + 30 + rand(30), \&prefetchFirmware);
+}
+
+sub prefetchFirmware {
+	Slim::Utils::Timers::killTimers(undef, \&prefetchFirmware);
+	my $releaseInfo = $prefs->get('lastReleaseTagUsed');
+
+	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: $@");
+			}
+
+			my $regex = $releaseInfo->{model} . '\.' . $releaseInfo->{res} . '\.\d+\.' . $releaseInfo->{branch};
+			my $url;
+			foreach (@$content) {
+				if ($_->{tag_name} =~ /$regex/ && $_->{assets} && ref $_->{assets}) {
+					($url) = grep /\.bin$/, map {
+						$_->{browser_download_url}
+					} @{$_->{assets}};
+
+					last if $url;
+				}
+			}
+
+			downloadFirmwareFile(sub {
+				main::INFOLOG && $log->is_info && $log->info("Pre-cached firmware file: " . $_[0]);
+			}, sub {
+				my ($http, $error, $url, $code) = @_;
+				$error ||= ($http && $http->error) || 'unknown error';
+				$url   ||= ($http && $http->url) || 'no URL';
+
+				$log->error(sprintf("Failed to get firmware image from Github: %s (%s)", $error || $http->error, $url));
+			}, $url) if $url && $url =~ /^https?/;
+
+		},
+		sub {
+			my ($http, $error) = @_;
+			$log->error("Failed to get releases from Github: $error");
+		},
+		{
+			timeout => 10,
+			cache => 1,
+			expires => 3600
+		}
+	)->get(GITHUB_RELEASES_URI) if $releaseInfo;
+
+	Slim::Utils::Timers::setTimer(undef, Time::HiRes::time() + FIRMWARE_POLL_INTERVAL, \&prefetchFirmware);
+}
+
+sub handleFirmwareDownload {
+	my ($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');
+			}
+
+			downloadFirmwareFile(sub {
+				my $firmwareFile = shift;
+				$response->code(200);
+				Slim::Web::HTTP::sendStreamingFile($httpClient, $response, 'application/octet-stream', $firmwareFile, undef, 1);
+			}, $_errorDownloading, $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");
+
+	downloadFirmwareFile(sub {
+		my $firmwareFile = shift;
+		$response->code(200);
+		Slim::Web::HTTP::sendStreamingFile($httpClient, $response, 'application/octet-stream', $firmwareFile, undef, 1);
+	}, $_errorDownloading, GITHUB_DOWNLOAD_URI . $path);
+}
+
+sub downloadFirmwareFile {
+	my ($cb, $ecb, $url, $name) = @_;
+
+	# keep track of the last firmware we requested, to prefetch it in the future
+	_getFirmwareTag($url);
+
+	$name ||= basename($url);
+
+	if ($name !~ $FW_FILENAME_REGEX) {
+		return $ecb->(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 file");
+		return $cb->($firmwareFile);
+	}
+
+	Slim::Networking::SimpleAsyncHTTP->new(
+		sub {
+			my $http = shift;
+
+			if ($http->code != 200 || !-e "$firmwareFile.tmp") {
+				return $ecb->($http, $http->mess);
+			}
+
+			rename "$firmwareFile.tmp", $firmwareFile or return $ecb->($http, "Unable to rename temporary $firmwareFile file" );
+
+			return $cb->($firmwareFile);
+		},
+		$ecb,
+		{
+			saveAs => "$firmwareFile.tmp",
+		}
+	)->get($url);
+
+	return;
+}
+
+sub _getFirmwareTag {
+	my ($url) = @_;
+
+	if (my ($model, $resolution, $version, $branch) = $url =~ $FW_TAG_REGEX) {
+		my $releaseInfo = {
+			model => $model,
+			res => $resolution,
+			version => $version,
+			branch => $branch
+		};
+
+		$prefs->set('lastReleaseTagUsed', $releaseInfo);
+
+		return $releaseInfo;
+	}
+}
+
+sub _errorDownloading {
+	my ($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;
\ No newline at end of file
diff --git a/plugin/SqueezeESP32/Player.pm b/plugin/SqueezeESP32/Player.pm
index 158d1395..d82b3b5c 100644
--- a/plugin/SqueezeESP32/Player.pm
+++ b/plugin/SqueezeESP32/Player.pm
@@ -343,4 +343,9 @@ sub lineInOutStatus {
 	}
 }
 
+sub voltage {
+	my $voltage = Slim::Networking::Slimproto::voltage(shift) || return 0;
+	return sprintf("%.2f", ($voltage >> 4) / 128);
+}
+
 1;
diff --git a/plugin/SqueezeESP32/Plugin.pm b/plugin/SqueezeESP32/Plugin.pm
index 9ba733a6..6614c179 100644
--- a/plugin/SqueezeESP32/Plugin.pm
+++ b/plugin/SqueezeESP32/Plugin.pm
@@ -3,14 +3,13 @@ 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;
 
+use Plugins::SqueezeESP32::FirmwareHelper;
+
 my $prefs = preferences('plugin.squeezeesp32');
 
 my $log = Slim::Utils::Log->addLogCategory({
@@ -19,12 +18,6 @@ my $log = Slim::Utils::Log->addLogCategory({
 	'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) = @_;
@@ -68,8 +61,7 @@ sub initPlugin {
 	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);
+	Plugins::SqueezeESP32::FirmwareHelper->init();
 }
 
 sub onStopClear {
@@ -111,137 +103,4 @@ sub setEQ {
 	$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;
diff --git a/plugin/SqueezeESP32/install.xml b/plugin/SqueezeESP32/install.xml
index 56551748..44753dce 100644
--- a/plugin/SqueezeESP32/install.xml
+++ b/plugin/SqueezeESP32/install.xml
@@ -10,6 +10,6 @@
   <name>PLUGIN_SQUEEZEESP32</name>
   <description>PLUGIN_SQUEEZEESP32_DESC</description>
   <module>Plugins::SqueezeESP32::Plugin</module>
-    <version>0.300</version>
+    <version>0.310</version>
   <creator>Philippe</creator>
 </extensions>
diff --git a/plugin/repo.xml b/plugin/repo.xml
index 3a473e19..4e6770bd 100644
--- a/plugin/repo.xml
+++ b/plugin/repo.xml
@@ -1,10 +1,10 @@
 <?xml version='1.0' standalone='yes'?>
 <extensions>
   <plugins>
-    <plugin version="0.300" name="SqueezeESP32" minTarget="7.9" maxTarget="*">
+    <plugin version="0.310" name="SqueezeESP32" minTarget="7.9" maxTarget="*">
       <link>https://github.com/sle118/squeezelite-esp32</link>
       <creator>Philippe</creator>
-      <sha>0763bf75e2c8e7d535d50959916053d865ce2c4d</sha>
+      <sha>39e70a87ce903cc8651e6b3bb2dc86609a8d0541</sha>
       <email>philippe_44@outlook.com</email>
       <desc lang="EN">SqueezeESP32 additional player id (100)</desc>
       <url>http://github.com/sle118/squeezelite-esp32/raw/master/plugin/SqueezeESP32.zip</url>