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#!/usr/bin/php<?php// ViaThinkSoft YouTube Downloader Util 2.3.3// Revision: 2022-12-19// Author: Daniel Marschall <www.daniel-marschall.de>// Licensed under the terms of the Apache 2.0 License//// For syntax and other documentation, please read the file README.// ------------------------------------------------------------------------------------------------error_reporting(E_ALL | E_NOTICE | E_STRICT | E_DEPRECATED);define('AUTO_API_KEY', '~/.yt_api_key');define('AUTO_COOKIE_FILE', '~/.yt_cookies');define('DOWNLOAD_SIMULATION_MODE', false);define('DEFAULT_SEARCH_ORDER', 'relevance');define('DEFAULT_SEARCH_MAXRESULTS', 10);putenv("LANG=de_DE.UTF-8"); // required if video titles contain non-ASCII symbolsrequire_once __DIR__ . '/youtube_functions.inc.phps';require_once __DIR__ . '/checksum_functions.inc.phps';// Check if we are running in command lineif (PHP_SAPI !== 'cli') {fwrite(STDERR, "Error: Can only run in CLI mode\n");exit(2);}// Global vars$listFilenameStack = array();// Default values$allow_creation_outputdir = false;$type = 'v:';$outputDir = '';$alreadyDownloaded = '';$checksumMode = 'none';$failList = '';$failTreshold = 3;$rest_args = array();$verbose = false;$mp3id_transfer = true;$apikey = '';$resultcache = '';$extra_args =// '-k ' . // The additional "-k" option in the above makes youtube-dl keep downloaded videos.'-i ' . // continue upon download errors'-c '; // resume partially downloaded video files$default_template = '%(title)s-%(id)s.%(ext)s';$cookie_file = AUTO_COOKIE_FILE;$downloader = 'yt-dlp';// Parse arguments// We do not use getopt() at the moment, because the important functionality "optind" is only available in PHP 7.1, which is not yet distributed with most of the stable Linux distros$init_extra_args = false;$argv_bak = $_SERVER['argv'];array_shift($argv_bak);while (count($argv_bak) > 0) {$arg = array_shift($argv_bak);$arg2 = $arg . ' ' . (isset($argv_bak[0]) ? $argv_bak[0] : '');$m = null;if (preg_match('@^(/t|\-t|\-\-type)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$type = $m[3];} else if (preg_match('@^(/o|\-o|\-\-outputDir)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$outputDir = $m[3];} else if (preg_match('@^(/a|\-a|\-\-alreadyDownloaded)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$alreadyDownloaded = $m[3];} else if (preg_match('@^(/f|\-f|\-\-failList)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$failList = $m[3];} else if (preg_match('@^(/F|\-F|\-\-failTreshold)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$failTreshold = $m[3];} else if (preg_match('@^(/C|\-C|\-\-resultcache)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$resultcache = $m[3];} else if (preg_match('@^(/H|\-H|\-\-checksumMode)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$checksumMode = $m[3];if ((strtolower($checksumMode) != 'none')&& (strtolower($checksumMode) != 'sfv')&& (strtolower($checksumMode) != 'md5')&& (strtolower($checksumMode) != 'sfv,md5')&& (strtolower($checksumMode) != 'md5,sfv')) syntax_error("Checksum mode needs to be either 'None', 'MD5', 'SFV', or 'MD5,SFV'.");} else if (preg_match('@^(/T|\-T|\-\-default-template)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$default_template = $m[3];} else if (preg_match('@^(/A|\-A|\-\-api-key)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$apikey = file_exists($m[3]) ? trim(file_get_contents($m[3])) : $m[3];} else if (preg_match('@^(\-\-cookies)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$cookie_file = file_exists($m[3]) ? trim(file_get_contents($m[3])) : $m[3];} else if (preg_match('@^(\-\-downloader)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$downloader = $m[3];} else if (preg_match('@^(/X|\-X|\-\-extra-args)(\s+|=)(.*)$@s', $arg2, $m)) {array_shift($argv_bak);if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);if ($init_extra_args) {$extra_args .= ' ' . $m[3]; // user has multiple "-X" arguments. append.} else {$extra_args = $m[3]; // overwrite defaults$init_extra_args = true;}} else if (preg_match('@^(/\?|/h|\-\?|\-h|\-\-help)$@s', $arg, $m)) {if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);help();} else if (preg_match('@^(/V|\-V|\-\-version)$@s', $arg, $m)) {if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);version();} else if (preg_match('@^(/v|\-v|\-\-verbose)$@s', $arg, $m)) {if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$verbose = true;} else if (preg_match('@^(/N|\-N|\-\-no-mp3-tagtransfer)$@s', $arg, $m)) {if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$mp3id_transfer = false;} else if (preg_match('@^(/O|\-O|\-\-create-outputdir)$@s', $arg, $m)) {if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$allow_creation_outputdir = true;} else if ($arg == '--') {if (count($rest_args) > 0) syntax_error("Invalid argument: ".$rest_args[0]);$rest_args = $argv_bak;break;} else {$rest_args[] = $arg;}}unset($arg);unset($argv_bak);unset($init_extra_args);define('DOWNLOAD_YT_FORK', $downloader);// Validity checksif ((substr($type,0,2) != 'a:') && (substr($type,0,2) != 'v:')) syntax_error("Type must be either 'v:' or 'a:'. '$type' is not valid.");if (count($rest_args) == 0) syntax_error("Please enter at least one desired video for downloading");if ($failTreshold <= 0) syntax_error("Fail treshold has invalid value. Must be >0.");$cookie_file = expand_tilde($cookie_file);if (!file_exists($cookie_file)) $cookie_file = '';// Try to download/update youtube-dl/yt-dlp into local directorydownload_latest_downloader();if (command_exists(__DIR__.'/'.DOWNLOAD_YT_FORK)) {echo "Will use '".DOWNLOAD_YT_FORK."' from local directory\n";define('YTDL_EXE', __DIR__.'/'.DOWNLOAD_YT_FORK);} else {// Download failed. Is at least a package installed?if (command_exists(DOWNLOAD_YT_FORK)) {echo "Will use '".DOWNLOAD_YT_FORK."' from Linux package\n";define('YTDL_EXE', DOWNLOAD_YT_FORK);} else {fwrite(STDERR, "This script requires the tool/package '".DOWNLOAD_YT_FORK."'. Please install it first.\n");exit(1);}}// Now process the videosyt_set_apikey_callback('_getApikey');foreach ($rest_args as $resource) {if ($verbose) echo "Handle: $resource\n";if (strpos($resource, ':') === false) {fwrite(STDERR, "Invalid resource '$resource' (you are missing the prefix, e.g. vurl: or vid:). Skipping.\n");} else {list($resourceType, $resourceValue) = explode(':', $resource, 2);try {ytdwn_handle_resource($resourceType, $resourceValue);} catch(Exception $e) {fwrite(STDERR, "Error at '$resourceType:$resourceValue': ".$e->getMessage()."\n");}}}// ------------------------------------------------------------------------------------------------function ytdwn_handle_resource($resourceType, $resourceValue) {if ($resourceType == 'vid') {$video_id = parse_quoting($resourceValue);ytdwn_video_id($video_id);} else if ($resourceType == 'vurl') {$video_url = parse_quoting($resourceValue);$video_id = getVideoIDFromURL($video_url);if (!$video_id) {fwrite(STDERR, "$video_url is not a valid YouTube video URL. Skipping.\n");} else {ytdwn_video_id($video_id);}} else if ($resourceType == 'pid') {$playlist_id = parse_quoting($resourceValue);ytdwn_playlist_id($playlist_id);} else if ($resourceType == 'purl') {$playlist_url = parse_quoting($resourceValue);$playlist_id = getPlaylistIDFromURL($playlist_url);if (!$playlist_id) {fwrite(STDERR, "$playlist_url is not a valid YouTube playlist URL. Skipping\n");} else {ytdwn_playlist_id($playlist_id);}} else if ($resourceType == 'cid') {$channel_id = parse_quoting($resourceValue);$m = null;if (preg_match('@\[search=(.+)\]@ismU', $channel_id, $m)) {$search = $m[1];$channel_id = preg_replace('@\[search=(.+)\]@ismU', '', $channel_id);} else {$search = ''; // default}$search = parse_quoting($search);ytdwn_channel_id($channel_id, $search);} else if ($resourceType == 'cname') {$channel_name = parse_quoting($resourceValue);$m = null;if (preg_match('@\[search=(.+)\]@ismU', $channel_name, $m)) {$search = $m[1];$channel_name = preg_replace('@\[search=(.+)\]@ismU', '', $channel_name);} else {$search = ''; // default}$search = parse_quoting($search);$channel_name = parse_quoting($channel_name);$channel_id = yt_get_channel_id($channel_name);if (!$channel_id) {fwrite(STDERR, "URL $channel_name is a valid YouTube username. Will now try to interprete it as channel ID instead....\n");}ytdwn_channel_id($channel_id, $search);} else if ($resourceType == 'curl') {$channel_url = parse_quoting($resourceValue);$m = null;if (preg_match('@\[search=(.+)\]@ismU', $channel_url, $m)) {$search = $m[1];$channel_url = preg_replace('@\[search=(.+)\]@ismU', '', $channel_url);} else {$search = ''; // default}$search = parse_quoting($search);$channel_url = parse_quoting($channel_url);$channel_id = curl_to_cid($channel_url);if (!$channel_id) {fwrite(STDERR, "URL $channel_url is a valid YouTube channel or username URL. Skipping\n");} else {ytdwn_channel_id($channel_id, $search);}} else if ($resourceType == 'search') {$searchterm = parse_quoting($resourceValue);$order = '';$m = null;if (preg_match('@\[order=(.+)\]@ismU', $searchterm, $m)) {$order = $m[1];$searchterm = preg_replace('@\[order=(.+)\]@ismU', '', $searchterm);} else {$order = DEFAULT_SEARCH_ORDER; // default}$order = parse_quoting($order);$maxresults = '';if (preg_match('@\[maxresults=(.+)\]@ismU', $searchterm, $m)) {$maxresults = $m[1];$searchterm = preg_replace('@\[maxresults=(.+)\]@ismU', '', $searchterm);} else {$maxresults = DEFAULT_SEARCH_MAXRESULTS; // default}$maxresults = parse_quoting($maxresults);$searchterm = parse_quoting($searchterm);ytdwn_search($searchterm, $order, $maxresults);} else if ($resourceType == 'list') {$list_files = glob(parse_quoting($resourceValue)); // in case the user entered a wildcard, e.g. *.listforeach ($list_files as $list_file) {if (!file_exists($list_file)) {fwrite(STDERR, "List file $list_file does not exist. Skipping\n");} else {ytdwn_list_file($list_file);}}} else {fwrite(STDERR, "Resource type '$resourceType' is not valid. Skipping $resourceType:$resourceValue.\n");}}function ytdwn_list_file($list_file) {global $listFilenameStack, $verbose;if ($verbose) echo "Processing list file '$list_file' ...\n";$listFilenameStack[] = $list_file;$lines = file($list_file);foreach ($lines as $line) {$line = trim($line);if ($line == '') continue;if ($line[0] == '#') continue;if (strpos($line, ':') === false) {fwrite(STDERR, "Invalid resource '$line' (you are missing the prefix, e.g. vurl: or vid:). Skipping.\n");} else {list($resourceType, $resourceValue) = explode(':',$line,2);try {ytdwn_handle_resource($resourceType, $resourceValue);} catch(Exception $e) {fwrite(STDERR, "Error at line '$line': ".$e->getMessage()."\n");}}}array_pop($listFilenameStack);}function ytdwn_channel_id($channel_id, $search='') {global $type;global $verbose;if ($verbose) echo "Processing channel ID '$channel_id' ...\n";// List the videos of the channel$use_cache = !empty(_getResultcache()) && file_exists(_getResultcache());$cont = $use_cache ? file_get_contents(_getResultcache()) : '';$out = json_decode($cont, true);if ($out == NULL) $out = array();if ($use_cache) {$stats = yt_get_channel_stats($channel_id);if (!$stats) {fwrite(STDERR, "Cannot get stats for channel with ID '$channel_id'\n");return;}$videocount = $stats['videoCount'];$key = (!empty($search)) ? 'cid:'.$channel_id.'/'.$search : 'cid:'.$channel_id;if (!isset($out[$key])) $out[$key] = array();$videocount_old = isset($out[$key]['count']) ? $out[$key]['count'] : -1;} else {$videocount = -1;$videocount_old = -2;$key = '';}if ($videocount_old != $videocount) { // Attention: This might not work if videos are deleted and added (= the count stays the same)if ($verbose && $use_cache) echo "Video count changed from $videocount_old to $videocount\n";$out[$key]['count'] = $videocount;if (!empty($search)) {$out[$key]['results'] = yt_channel_items($channel_id, $search);} else {$out[$key]['results'] = yt_channel_items($channel_id);}if (!$out[$key]['results']) {// TODO: If a channel has deleted all videos, then this message comes.// However, technically this is not an error.fwrite(STDERR, "Cannot get result for channel with ID '$channel_id'\n");return;}} else {if ($verbose) echo "Video count for channel is still $videocount, keep ".count($out[$key]['results'])." results.\n";}// Save the cachetry {if ($use_cache) file_put_contents(_getResultcache(), json_encode($out));} catch(Exception $e) {fwrite(STDERR, "Cannot write result cache\n");}// Now downloadif (!$out[$key]['results']) {// TODO: If a channel has deleted all videos, then this message comes.// However, technically this is not an error.fwrite(STDERR, "Cannot get result for channel with ID '$channel_id'\n");return;}foreach ($out[$key]['results'] as list($id, $title)) {if ($verbose) echo "Downloading '$title' as ".hf_type($type)." ...\n";ytdwn_video_id($id);}}function ytdwn_playlist_id($playlist_id) {global $type;global $verbose;if ($verbose) echo "Processing playlist ID '$playlist_id' ...\n";// List the videos of the playlist$use_cache = !empty(_getResultcache()) && file_exists(_getResultcache());$cont = $use_cache ? file_get_contents(_getResultcache()) : '';$out = json_decode($cont, true);if ($out == NULL) $out = array();if ($use_cache) {$stats = yt_get_playlist_stats($playlist_id);if (!$stats) {fwrite(STDERR, "Cannot get stats for playlist with ID '$playlist_id'\n");return;}$videocount = $stats['itemCount'];$key = 'pid:'.$playlist_id;if (!isset($out[$key])) $out[$key] = array();$videocount_old = isset($out[$key]['count']) ? $out[$key]['count'] : -1;} else {$videocount = -1;$videocount_old = -2;$key = '';}if ($videocount_old != $videocount) { // Attention: This might not work if videos are deleted and added (= the count stays the same)if ($verbose && $use_cache) echo "Video count changed from $videocount_old to $videocount\n";$out[$key]['count'] = $videocount;$out[$key]['results'] = yt_playlist_items($playlist_id);if (!$out[$key]['results']) {// TODO: If a playlist has deleted all videos, then this message comes.// However, technically this is not an error.fwrite(STDERR, "Cannot get result for playlist with ID '$playlist_id'\n");return;}} else {if ($verbose) echo "Video count for playlist is still $videocount, keep ".count($out[$key]['results'])." results.\n";}// Save the cachetry {if ($use_cache) file_put_contents(_getResultcache(), json_encode($out));} catch(Exception $e) {fwrite(STDERR, "Cannot write result cache\n");}// Now downloadif (!$out[$key]['results']) {fwrite(STDERR, "Cannot get result for playlist with ID '$playlist_id'\n");return;}foreach ($out[$key]['results'] as list($id, $title)) {if ($verbose) echo "Downloading '$title' as ".hf_type($type)." ...\n";ytdwn_video_id($id);}}function ytdwn_search($search, $order='', $maxresults=-1) {global $type;global $verbose;if ($verbose) echo "Searching for '$search' ...\n";// Perform the search and list the videos$results = yt_search_items($search, $order, $maxresults);// Now downloadif (!$results) {fwrite(STDERR, "Cannot get data for search '$search'\n");return;}foreach ($results as list($id, $title)) {if ($verbose) echo "Downloading '$title' as ".hf_type($type)." ...\n";ytdwn_video_id($id);}}function template_to_wildcard($template, $video_id) {$x = $template;$x = str_replace('%(id)s', $video_id, $x);$x = preg_replace('@%\\(.+\\)s@ismU', '*', $x);$x = preg_replace('@\\*+@', '*', $x);return $x;}function ytdwn_get_downloaded_filename($outputTemplate, $video_id) {if (strpos($outputTemplate, '%(id)s') === false) {// TODO: There needs to be a better way to find out the written file name !!!return false;} else {$wildcard = template_to_wildcard($outputTemplate, $video_id);$test = glob($wildcard);if (count($test) == 0) return false;return $test[0];}}function ytdwn_video_id($video_id) {global $type;global $verbose;global $mp3id_transfer;global $extra_args;global $default_template;global $failTreshold;global $cookie_file;global $checksumMode;if (DOWNLOAD_SIMULATION_MODE) {echo "SIMULATE download of video id $video_id as ".hf_type($type)." to "._getOutputDir()."\n";return;}if (!empty(_getAlreadyDownloaded()) && in_alreadydownloaded_file($type, $video_id)) {if ($verbose) echo "Video $video_id has already been downloaded. Skip.\n";return true;}if (!empty(_getFailList()) && (ytdwn_fail_counter($type, $video_id) >= $failTreshold)) {if ($verbose) echo "Video $video_id has failed too often. Skip.\n";return true;}$out = '';$code = -1;$outputTemplate = rtrim(_getOutputDir(), '/').'/'.$default_template;if (substr($type,0,2) == 'v:') {$format = substr($type,2);if (!empty($format)) {exec(YTDL_EXE.' -o '.escapeshellarg($outputTemplate).' '.$extra_args.(empty($cookie_file) ? '' : ' --cookies '.$cookie_file).' '.escapeshellarg(vid_to_vurl($video_id)).' --format '.escapeshellarg($format), $out, $code);} else {exec(YTDL_EXE.' -o '.escapeshellarg($outputTemplate).' '.$extra_args.(empty($cookie_file) ? '' : ' --cookies '.$cookie_file).' '.escapeshellarg(vid_to_vurl($video_id)), $out, $code);}$written_file = $code == 0 ? ytdwn_get_downloaded_filename($outputTemplate, $video_id) : false;} else if (substr($type,0,2) == 'a:') {$format = substr($type,2);if (!empty($format)) {exec(YTDL_EXE.' -o '.escapeshellarg($outputTemplate).' '.$extra_args.(empty($cookie_file) ? '' : ' --cookies '.$cookie_file).' '.escapeshellarg(vid_to_vurl($video_id)).' --extract-audio --audio-format '.escapeshellarg($format), $out, $code);} else {exec(YTDL_EXE.' -o '.escapeshellarg($outputTemplate).' '.$extra_args.(empty($cookie_file) ? '' : ' --cookies '.$cookie_file).' '.escapeshellarg(vid_to_vurl($video_id)).' --extract-audio', $out, $code);}$written_file = $code == 0 ? ytdwn_get_downloaded_filename($outputTemplate, $video_id) : false;if (($code == 0) && ($mp3id_transfer) && (strtolower($format) == 'mp3')) {if (!$written_file) {fwrite(STDERR, "Cannot include YouTube ID to MP3, because the default template does not contain '%(id)s', or the downloaded file could not be determined for another reason.\n");} else {mp3_transfer_vid_to_id($written_file, $video_id);}}} else {assert(false);return false;}if ($code == 0) {if ($verbose) {fwrite(STDOUT, "Successfully downloaded video ID $video_id as ".hf_type($type)."\n");if ($written_file) fwrite(STDOUT, "Output file name: $written_file\n");}if (!empty(_getAlreadyDownloaded())) {try {addto_alreadydownloaded_file($type, $video_id);} catch(Exception $e) {fwrite(STDERR, "Cannot add to 'already downloaded' file\n");}}// Now do the checksumsforeach (explode(',',$checksumMode) as $mode) {if (strtolower($mode) === 'none') continue;if (!$written_file) {fwrite(STDERR, "Cannot add to the '$mode' checksum file, because the default template does not contain '%(id)s', or the downloaded file could not be determined for another reason.\n");} else if (!cs_add_automatically($written_file, $mode)) {fwrite(STDERR, "Could not write to '$mode' checksum file!\n");}}} else {fwrite(STDERR, "Error downloading $video_id! (Code $code)\n");if (!empty(_getFailList())) {try {ytdwn_register_fail($type, $video_id, $code);} catch(Exception $e) {fwrite(STDERR, "Cannot register fail\n");}}return false;}return true;}function vid_to_vurl($video_id) {return "https://www.youtube.com/watch?v=$video_id";}function EndsWith($Haystack, $Needle){return strrpos($Haystack, $Needle) === strlen($Haystack)-strlen($Needle);}function mp3_transfer_vid_to_id(&$written_file, $video_id) {global $verbose;global $default_template;if (!command_exists('id3v2')) {fwrite(STDERR, "Tool id3v2 is not installed. Will not transfer the YouTube ID into the MP3 ID Tag. Use paramter '-N' to stop trying the transfer.\n");return false;}$orig_ts = filemtime($written_file);$ec = -1;system('id3v2 -c '.escapeshellarg($video_id).' '.escapeshellarg($written_file), $ec);touch($written_file, $orig_ts);if ($ec != 0) {fwrite(STDERR, "Cannot set ID tag for file $written_file\n");return false;}$target_filename = $written_file;// Things like '<title>-<id>.mp3' become '<title>.mp3' (our default template)// But templates like '<title> (<id>).mp3' could become '<title> ().mp3', which is not nice// So, we try our best to find the most common template types...$target_filename = str_replace('-'.$video_id, '', $target_filename);$target_filename = str_replace('_'.$video_id, '', $target_filename);$target_filename = str_replace(' '.$video_id, '', $target_filename);$target_filename = str_replace('('.$video_id.')', '', $target_filename);$target_filename = str_replace('['.$video_id.']', '', $target_filename);$target_filename = str_replace($video_id, '', $target_filename); // must be the last!if ($target_filename === $written_file) {fwrite(STDERR, "Could not remove VideoID from filename '$written_file'\n"); // should not happenreturn false;}if (!intelligent_rename($written_file, $target_filename)) {fwrite(STDERR, "Could not rename '$written_file' to '$target_filename'\n");return false;}$written_file = $target_filename; // was modified by intelligent_rename()return true;}function curl_to_cid($channel_url) {return yt_get_channel_id_from_url($channel_url);}function in_alreadydownloaded_file($type, $video_id) {$lines = file(_getAlreadyDownloaded());foreach ($lines as $line) {if (trim($line) == rtrim($type,':').':'.$video_id) {return true;}}return false;}function addto_alreadydownloaded_file($type, $video_id) {file_put_contents(_getAlreadyDownloaded(), rtrim($type,':').':'.$video_id."\n", FILE_APPEND);}function syntax_error($msg) {fwrite(STDERR, "Syntax error: ".trim($msg)."\n");fwrite(STDERR, "Please use argument '--help' to show the syntax rules.\n");exit(2);}function _help() {global $argv;$out = '';$own = file_get_contents($argv[0]);$help = explode('// ----', $own, 2)[0];$m = null;$help = preg_match_all('@^//(.*)$@mU', $help, $m);foreach ($m[1] as $line) {$out .= substr($line,1)."\n";}return $out;}function help() {echo _help();exit(0);}function version() {echo explode("\n\n", _help(), 2)[0]."\n";exit(0);}function command_exists($command) {// https://stackoverflow.com/questions/592620/check-if-a-program-exists-from-a-bash-script$ec = -1;system('command -v '.escapeshellarg($command).' > /dev/null', $ec);return ($ec == 0);}function hf_type($type) {if (strpos($type, ':') === false) return $type; // invalid type (missing ':')list($av, $format) = explode(':', $type);if ($av == 'a') $av = 'audio';else if ($av == 'v') $av = 'video';else return $type; // invalid typereturn (!empty($format)) ? $format.'-'.$av : $av;}function expand_tilde($path) {// Source: http://jonathonhill.net/2013-09-03/tilde-expansion-in-php/if (function_exists('posix_getuid') && strpos($path, '~') !== false) {$info = posix_getpwuid(posix_getuid());$path = str_replace('~', $info['dir'], $path);}return $path;}function _getLastListname() {global $listFilenameStack;$listname = ''; // defaultif (count($listFilenameStack) > 0) {$listname = $listFilenameStack[count($listFilenameStack)-1];$listname = pathinfo($listname, PATHINFO_FILENAME); // remove file extension, e.g. ".list"}return $listname;}function _getApiKey() {global $apikey;$out = $apikey;if (empty($out)) {$auto_api_key = AUTO_API_KEY;$auto_api_key = expand_tilde($auto_api_key);$auto_api_key = str_replace('[listname]', _getLastListname(), $auto_api_key);if (file_exists($auto_api_key)) {$out = trim(file_get_contents($auto_api_key));} else {syntax_error("Please specify a YouTube API key with argument '-A'.");}} else {$out = str_replace('[listname]', _getLastListname(), $out);$out = expand_tilde($out);if (file_exists($out)) {$out = trim(file_get_contents($out));} else {// Assume, $out is a key, not a file}}if (!yt_check_apikey_syntax($out)) syntax_error("'$out' is not a valid API key, not an existing file containing an API key.\n");return $out;}function _getResultCache() {global $resultcache;if (empty($resultcache)) return '';$out = expand_tilde($resultcache);$out = str_replace('[listname]', _getLastListname(), $out);if (!file_exists($out)) {@touch($out);if (!file_exists($out)) {fwrite(STDERR, "File '$out' cannot be created. Disable feature.\n");return '';}}return $out;}function _getAlreadyDownloaded() {global $alreadyDownloaded;if (empty($alreadyDownloaded)) return '';$out = expand_tilde($alreadyDownloaded);$out = str_replace('[listname]', _getLastListname(), $out);if (!file_exists($out)) {@touch($out);if (!file_exists($out)) {fwrite(STDERR, "File '$out' cannot be created. Disable feature.\n");return '';}}return $out;}function _getFailList() {global $failList;if (empty($failList)) return '';$out = expand_tilde($failList);$out = str_replace('[listname]', _getLastListname(), $out);if (!file_exists($out)) {@touch($out);if (!file_exists($out)) {fwrite(STDERR, "File '$out' cannot be created. Disable feature.\n");return '';}}return $out;}function _getOutputDir() {global $outputDir, $allow_creation_outputdir;if (empty($outputDir)) return '.';$out = expand_tilde($outputDir);$out = str_replace('[listname]', _getLastListname(), $out);if ($allow_creation_outputdir) {if (!is_dir($out)) {mkdir($out, 0777, true);if (!is_dir($out)) {fwrite(STDERR, "Output directory '$out' does not exist.\n");exit(1);}}} else {if (!is_dir($out)) {fwrite(STDERR, "Output directory '$out' does not exist.\n");exit(1);}}return $out;}function parse_quoting($str) {if ((substr($str,0,1) == '"') && (substr($str,-1,1) == '"')) {$str = substr($str,1,strlen($str)-2);$escape = false;$out = '';for ($i=0; $i<strlen($str); $i++) {$char = $str[$i];if ($char == '\\') {if ($escape) {$out .= $char;$escape = false;} else {$escape = true;}} else {$out .= $char;}}$str = $out;}return $str;}function ytdwn_register_fail($type, $video_id, $code) {// Note: Error code $code ist currently not used$file = _getFailList();$cont = file_get_contents($file);$m = null;if (preg_match("@Video ID ".preg_quote($video_id,'@')." failed (\d+) time\(s\) with type ".preg_quote($type,'@')."@ismU", $cont, $m)) {$cont = preg_replace("@Video ID ".preg_quote($video_id,'@')." failed (\d+) time\(s\) with type ".preg_quote($type,'@')."@ismU","Video ID $video_id failed ".(((int)$m[1])+1)." time(s) with type $type", $cont);file_put_contents($file, $cont);} else {file_put_contents($file, "Video ID $video_id failed 1 time(s) with type $type\n", FILE_APPEND);}}function ytdwn_fail_counter($type, $video_id) {$file = _getFailList();$cont = file_get_contents($file);$m = null;if (preg_match("@Video ID ".preg_quote($video_id,'@')." failed (\d+) time\(s\) with type ".preg_quote($type,'@')."@ismU", $cont, $m)) {return $m[1];} else {return 0;}}function intelligent_rename($src, &$dest) {$pos = strrpos($dest, '.');$ext = substr($dest, $pos);$namewoext = substr($dest, 0, $pos);$failcnt = 1;$dest_neu = $dest;while (file_exists($dest_neu)) {$failcnt++;$dest_neu = "$namewoext ($failcnt)$ext";}$res = rename($src, $dest_neu);if ($res) $dest = $dest_neu;return $res;}function download_latest_downloader() {$download_url = false;if (DOWNLOAD_YT_FORK == 'yt-dlp') {$ch = curl_init();curl_setopt($ch, CURLOPT_URL, 'https://github.com/yt-dlp/yt-dlp/releases/latest/download/SHA2-256SUMS');#curl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);$cont = curl_exec($ch);$m = null;if (preg_match('@^(.+)\s+yt-dlp$@ismU', $cont, $m)) {$newest_version_sha2 = $m[1];} else {$newest_version_sha2 = false;}if (!$newest_version_sha2) {fwrite(STDERR, "Failed to get SHA2 sum of latest version of '".DOWNLOAD_YT_FORK."' online. Will not try to download/update '".DOWNLOAD_YT_FORK."' into local directory.\n");} else {if (!file_exists(__DIR__.'/'.DOWNLOAD_YT_FORK) || ($newest_version_sha2 != hash_file('sha256',__DIR__.'/'.DOWNLOAD_YT_FORK))) {$download_url = 'https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp';}}}if (DOWNLOAD_YT_FORK == 'youtube-dlc') {// TODO: What is the difference between these two? Which one should be chosen?!// https://github.com/blackjack4494/yt-dlc (18372 commits, last commit 23 Aug 2021, last release 2020.11.11-3)// https://github.com/blackjack4494/youtube-dlc (18888 commits, last commit 26 Jul 2021, last release 2020.10.09)// TODO: yt-dlc The sha256 does not fit to the binary! Therefore, it is always downloaded!// TODO: youtube-dlc has no hashes online.../*$ch = curl_init();curl_setopt($ch, CURLOPT_URL, 'https://github.com/blackjack4494/yt-dlc/releases/latest/download/SHA2-256SUMS');#curl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);$cont = curl_exec($ch);$m = null;if (preg_match('@^youtube\-dlc:(.+)$@ismU', $cont, $m)) {$newest_version_sha2 = $m[1];} else {$newest_version_sha2 = false;}if (!$newest_version_sha2) {fwrite(STDERR, "Failed to get SHA2 sum of latest version of '".DOWNLOAD_YT_FORK."' online. Will not try to download/update '".DOWNLOAD_YT_FORK."' into local directory.\n");} else {if (!file_exists(__DIR__.'/'.DOWNLOAD_YT_FORK) || ($newest_version_sha2 != hash_file('sha256',__DIR__.'/'.DOWNLOAD_YT_FORK))) {$download_url = 'https://github.com/blackjack4494/yt-dlc/releases/latest/download/youtube-dlc';}}*/if (!file_exists(__DIR__.'/'.DOWNLOAD_YT_FORK) || (time()-filemtime(__DIR__.'/'.DOWNLOAD_YT_FORK) > 24*60*60)) {$download_url = 'https://github.com/blackjack4494/yt-dlc/releases/latest/download/youtube-dlc';}}if (DOWNLOAD_YT_FORK == 'youtube-dl') {$ch = curl_init();curl_setopt($ch, CURLOPT_URL, 'https://yt-dl.org/downloads/latest/MD5SUMS');#curl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);$cont = curl_exec($ch);$m = null;if (preg_match('@^(.+) youtube\-dl$@ismU', $cont, $m)) {$newest_version_md5 = $m[1];} else {$newest_version_md5 = false;}if (!$newest_version_md5) {fwrite(STDERR, "Failed to get MD5 sum of latest version of '".DOWNLOAD_YT_FORK."' online. Will not try to download/update '".DOWNLOAD_YT_FORK."' into local directory.\n");} else {if (!file_exists(__DIR__.'/'.DOWNLOAD_YT_FORK) || ($newest_version_md5 != md5_file(__DIR__.'/'.DOWNLOAD_YT_FORK))) {$download_url = 'https://yt-dl.org/latest/youtube-dl';}}}if ($download_url) {// Try to download/update the file in our directory. It should be the newest available, since YT often breaks downloaderif (file_exists(__DIR__.'/'.DOWNLOAD_YT_FORK)) {echo "Trying to update '".DOWNLOAD_YT_FORK."' in local directory...\n";} else {echo "Trying to download '".DOWNLOAD_YT_FORK."' into local directory...\n";}@chmod(__DIR__.'/'.DOWNLOAD_YT_FORK, 0777); // otherwise we might not be able to write to itif (!($binary = file_get_contents($download_url))) {fwrite(STDERR, "Failed to download '".DOWNLOAD_YT_FORK."' into local directory (file_get_contents).\n");} else if (!@file_put_contents(__DIR__.'/'.DOWNLOAD_YT_FORK, $binary)) {fwrite(STDERR, "Failed to download '".DOWNLOAD_YT_FORK."' into local directory (file_put_contents).\n");} else {if (!@chmod(__DIR__.'/'.DOWNLOAD_YT_FORK, 0544)) {fwrite(STDERR, "Failed to download '".DOWNLOAD_YT_FORK."' into local directory (chmod 544).\n");@unlink(__DIR__.'/'.DOWNLOAD_YT_FORK); // try to delete, otherwise we might try to execute a non-executable file}}}}