377 lines
11 KiB
PHP
377 lines
11 KiB
PHP
<?php
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namespace OCA\Memories;
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class BinExt
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{
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public const EXIFTOOL_VER = '12.58';
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public const GOVOD_VER = '0.1.0';
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/** Copy a binary to temp dir for execution */
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public static function getTempBin(string $path, string $name, bool $copy = true): string
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{
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// Hash the path to provide a suffix using md5, 8 characters
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$suffix = substr(md5($path), 0, 8);
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// Check target temp file
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$target = sys_get_temp_dir().'/'.$name.'-'.$suffix;
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if (file_exists($target)) {
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if (!is_writable($target)) {
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throw new \Exception("{$name} temp binary path is not writable: {$target}");
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}
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if (!is_executable($target) && !chmod($target, 0755)) {
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throw new \Exception("failed to make {$name} temp binary executable: {$target}");
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}
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return $target;
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}
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if ($copy) {
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if (!copy($path, $target)) {
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throw new \Exception("failed to copy {$name} binary from {$path} to {$target}");
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}
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return self::getTempBin($path, $name, false);
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}
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throw new \Exception("failed to find exiftool temp binary {$target}");
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}
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/** Get the name for a binary */
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public static function getName(string $name, string $version = ''): string
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{
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$id = Util::getInstanceId();
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return empty($version) ? "{$name}-{$id}" : "{$name}-{$id}-{$version}";
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}
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/** Test configured exiftool binary */
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public static function testExiftool(): bool
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{
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$cmd = implode(' ', array_merge(self::getExiftool(), ['-ver']));
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$out = shell_exec($cmd);
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if (!$out) {
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throw new \Exception("failed to run exiftool: {$cmd}");
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}
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$version = trim($out);
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$target = self::EXIFTOOL_VER;
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if (!version_compare($version, $target, '=')) {
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throw new \Exception("version does not match {$version} <==> {$target}");
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}
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return true;
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}
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/** Get path to exiftool binary */
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public static function getExiftoolPBin(): string
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{
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$path = Util::getSystemConfig('memories.exiftool');
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return self::getTempBin($path, self::getName('exiftool', self::EXIFTOOL_VER));
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}
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/** Get path to exiftool binary for proc_open */
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public static function getExiftool(): array
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{
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if (Util::getSystemConfig('memories.exiftool_no_local')) {
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return ['perl', realpath(__DIR__.'/../exiftool-bin/exiftool/exiftool')];
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}
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return [self::getExiftoolPBin()];
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}
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/** Detect the exiftool binary to use */
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public static function detectExiftool()
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{
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if (!empty($path = Util::getSystemConfig('memories.exiftool'))) {
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return $path;
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}
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if (Util::getSystemConfig('memories.exiftool_no_local')) {
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return implode(' ', self::getExiftool());
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}
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// Detect architecture
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$arch = \OCA\Memories\Util::getArch();
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$libc = \OCA\Memories\Util::getLibc();
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// Get static binary if available
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if ($arch && $libc) {
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// get target file path
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$path = realpath(__DIR__."/../exiftool-bin/exiftool-{$arch}-{$libc}");
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// Set config
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Util::setSystemConfig('memories.exiftool', $path);
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// make sure it exists
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if (file_exists($path)) {
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return $path;
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}
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}
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Util::setSystemConfig('memories.exiftool_no_local', true);
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return false;
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}
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/**
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* Get the upstream URL for a video.
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*/
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public static function getGoVodUrl(string $client, string $path, string $profile): string
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{
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$path = rawurlencode($path);
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$bind = Util::getSystemConfig('memories.vod.bind');
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$connect = Util::getSystemConfig('memories.vod.connect', $bind);
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return "http://{$connect}/{$client}{$path}/{$profile}";
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}
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public static function getGoVodConfig($local = false)
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{
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// Get config from system values
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$env = [
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'vaapi' => Util::getSystemConfig('memories.vod.vaapi'),
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'vaapiLowPower' => Util::getSystemConfig('memories.vod.vaapi.low_power'),
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'nvenc' => Util::getSystemConfig('memories.vod.nvenc', false),
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'nvencTemporalAQ' => Util::getSystemConfig('memories.vod.nvenc.temporal_aq'),
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'nvencScale' => Util::getSystemConfig('memories.vod.nvenc.scale'),
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];
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if (!$local) {
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return $env;
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}
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// Get temp directory
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$tmpPath = Util::getSystemConfig('memories.vod.tempdir', sys_get_temp_dir().'/go-vod/');
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// Make sure path ends with slash
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if ('/' !== substr($tmpPath, -1)) {
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$tmpPath .= '/';
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}
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// Add instance ID to path
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$tmpPath .= Util::getInstanceId();
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return array_merge($env, [
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'bind' => Util::getSystemConfig('memories.vod.bind'),
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'ffmpeg' => Util::getSystemConfig('memories.vod.ffmpeg'),
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'ffprobe' => Util::getSystemConfig('memories.vod.ffprobe'),
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'tempdir' => $tmpPath,
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]);
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}
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/**
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* Get temp binary for go-vod.
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*/
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public static function getGoVodBin()
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{
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$path = Util::getSystemConfig('memories.vod.path');
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return self::getTempBin($path, self::getName('go-vod', self::GOVOD_VER));
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}
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/**
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* If local, restart the go-vod instance.
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* If external, configure the go-vod instance.
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*/
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public static function startGoVod()
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{
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// Check if disabled
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if (Util::getSystemConfig('memories.vod.disable')) {
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// Make sure it's dead, in case the user just disabled it
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Util::pkill(self::getName('go-vod'));
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return;
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}
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// Check if external
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if (Util::getSystemConfig('memories.vod.external')) {
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self::configureGoVod();
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return;
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}
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// Get transcoder path
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$transcoder = self::getGoVodBin();
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if (empty($transcoder)) {
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throw new \Exception('Transcoder not configured');
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}
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// Get local config
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$env = self::getGoVodConfig(true);
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$tmpPath = $env['tempdir'];
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// (Re-)create temp dir
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shell_exec("rm -rf '{$tmpPath}' && mkdir -p '{$tmpPath}' && chmod 755 '{$tmpPath}'");
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// Check temp directory exists
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if (!is_dir($tmpPath)) {
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throw new \Exception("Temp directory could not be created ({$tmpPath})");
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}
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// Check temp directory is writable
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if (!is_writable($tmpPath)) {
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throw new \Exception("Temp directory is not writable ({$tmpPath})");
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}
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// Write config to file
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$logFile = $tmpPath.'.log';
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$configFile = $tmpPath.'.json';
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file_put_contents($configFile, json_encode($env, JSON_PRETTY_PRINT));
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// Kill the transcoder in case it's running
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Util::pkill(self::getName('go-vod'));
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// Start transcoder
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shell_exec("nohup {$transcoder} {$configFile} >> '{$logFile}' 2>&1 & > /dev/null");
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// wait for 500ms
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usleep(500000);
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return $logFile;
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}
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/**
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* Test go-vod and (re)-start if it is not external.
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*/
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public static function testStartGoVod(): bool
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{
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try {
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return self::testGoVod();
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} catch (\Exception $e) {
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// silently try to restart
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}
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// Attempt to (re)start go-vod
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// If it is external, this only attempts to reconfigure
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self::startGoVod();
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// Test again
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return self::testGoVod();
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}
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/** Test the go-vod instance that is running */
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public static function testGoVod(): bool
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{
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// Check if disabled
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if (Util::getSystemConfig('memories.vod.disable')) {
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throw new \Exception('Transcoding is disabled');
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}
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// TODO: check data mount; ignoring the result of the file for now
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$testfile = realpath(__DIR__.'/../exiftest.jpg');
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// Make request
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$url = self::getGoVodUrl('test', $testfile, 'test');
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try {
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$client = new \GuzzleHttp\Client();
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$res = $client->request('GET', $url, [
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'timeout' => 1,
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'connect_timeout' => 1,
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]);
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} catch (\Exception $e) {
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throw new \Exception('failed to connect to go-vod: '.$e->getMessage());
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}
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// Parse body
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$json = json_decode($res->getBody(), true);
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if (!$json) {
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throw new \Exception('failed to parse go-vod response');
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}
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// Check version
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$version = $json['version'];
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$target = self::GOVOD_VER;
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if (!version_compare($version, $target, '=')) {
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throw new \Exception("version does not match {$version} <==> {$target}");
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}
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return true;
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}
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/** POST a new configuration to go-vod */
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public static function configureGoVod()
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{
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// Get config
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$config = self::getGoVodConfig();
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// Make request
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$url = self::getGoVodUrl('config', '/config', 'config');
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try {
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$client = new \GuzzleHttp\Client();
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$client->request('POST', $url, [
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'json' => $config,
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'timeout' => 1,
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'connect_timeout' => 1,
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]);
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} catch (\Exception $e) {
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throw new \Exception('failed to connect to go-vod: '.$e->getMessage());
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}
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return true;
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}
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/** Detect the go-vod binary to use */
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public static function detectGoVod()
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{
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$goVodPath = Util::getSystemConfig('memories.vod.path');
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if (empty($goVodPath) || !file_exists($goVodPath)) {
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// Detect architecture
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$arch = \OCA\Memories\Util::getArch();
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$path = __DIR__."/../exiftool-bin/go-vod-{$arch}";
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$goVodPath = realpath($path);
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if (!$goVodPath) {
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return false;
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}
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// Set config
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Util::setSystemConfig('memories.vod.path', $goVodPath);
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// Make executable
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if (!is_executable($goVodPath)) {
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@chmod($goVodPath, 0755);
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}
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}
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return $goVodPath;
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}
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public static function detectFFmpeg()
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{
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$ffmpegPath = Util::getSystemConfig('memories.vod.ffmpeg');
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$ffprobePath = Util::getSystemConfig('memories.vod.ffprobe');
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if (empty($ffmpegPath) || !file_exists($ffmpegPath) || empty($ffprobePath) || !file_exists($ffprobePath)) {
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// Use PATH
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$ffmpegPath = shell_exec('which ffmpeg');
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$ffprobePath = shell_exec('which ffprobe');
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if (!$ffmpegPath || !$ffprobePath) {
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return false;
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}
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// Trim
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$ffmpegPath = trim($ffmpegPath);
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$ffprobePath = trim($ffprobePath);
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// Set config
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Util::setSystemConfig('memories.vod.ffmpeg', $ffmpegPath);
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Util::setSystemConfig('memories.vod.ffprobe', $ffprobePath);
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}
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// Check if executable
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if (!is_executable($ffmpegPath) || !is_executable($ffprobePath)) {
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return false;
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}
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return $ffmpegPath;
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}
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}
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