RadioService::readIcecastMetadata() - Code Metrics - Inspection of "Tweak some comments" - owncloud/music - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( f358a5...b5f949 )

by Pauli

created 2025-06-06 19:29 UTC

RadioService::readIcecastMetadata() A

↳ Parent: RadioService

Complexity

Conditions	5
Paths	1

Size

Total Lines	34
Code Lines	23

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	5
eloc	23
nc	1
nop	1
dl	0
loc	34
rs	9.2408
c	0
b	0
f	0

<?php declare(strict_types=1);

/**
 * ownCloud - Music app
 *
 * This file is licensed under the Affero General Public License version 3 or
 * later. See the COPYING file.
 *
 * @author Moahmed-Ismail MEJRI <[email protected]>
 * @author Pauli Järvinen <[email protected]>
 * @copyright Moahmed-Ismail MEJRI 2022
 * @copyright Pauli Järvinen 2022 - 2025
 */

namespace OCA\Music\Service;

use OCA\Music\AppFramework\Core\Logger;
use OCA\Music\Utility\HttpUtil;
use OCA\Music\Utility\StringUtil;
use OCA\Music\Utility\Util;
use OCP\IURLGenerator;

/**
 * MetaData radio utility functions
 */
class RadioService {

	private IURLGenerator $urlGenerator;
	private StreamTokenService $tokenService;
	private Logger $logger;

	public function __construct(IURLGenerator $urlGenerator, StreamTokenService $tokenService, Logger $logger) {
		$this->urlGenerator = $urlGenerator;
		$this->tokenService = $tokenService;
		$this->logger = $logger;
	}

	/**
	 * Loop through the array and try to find the given key. On match, return the
	 * text in the array cell following the key. Whitespace is trimmed from the result.
	 */
	private static function findStrFollowing(array $data, string $key) : ?string {
		foreach ($data as $value) {
			$find = \strstr($value, $key);
			if ($find !== false) {
				return \trim(\substr($find, \strlen($key)));
			}
		}
		return null;
	}

	private static function parseStreamUrl(string $url) : array {
		$ret = [];
		$parse_url = \parse_url($url);

		$ret['port'] = 80;
		if (isset($parse_url['port'])) {
			$ret['port'] = $parse_url['port'];
		} else if ($parse_url['scheme'] == "https") {
			$ret['port'] = 443;
		}

		$ret['scheme'] = $parse_url['scheme'];
		$ret['hostname'] = $parse_url['host'];
		$ret['pathname'] = $parse_url['path'] ?? '/';

		if (isset($parse_url['query'])) {
			$ret['pathname'] .= "?" . $parse_url['query'];
		}

		if ($parse_url['scheme'] == "https") {
			$ret['sockAddress'] = "ssl://" . $ret['hostname'];
		} else {
			$ret['sockAddress'] = $ret['hostname'];
		}

		return $ret;
	}

	private static function parseTitleFromStreamMetadata($fp) : ?string {
		$meta_length = \ord(\fread($fp, 1)) * 16;
		if ($meta_length) {
			$metadatas = \explode(';', \fread($fp, $meta_length));
			$title = self::findStrFollowing($metadatas, "StreamTitle=");
			if ($title) {
				return StringUtil::truncate(\trim($title, "'"), 256);
			}
		}
		return null;
	}

	private function readMetadata(string $metaUrl, callable $parseResult) : ?array {
		$maxLength = 32 * 1024;
		$timeout_s = 8;
		list('content' => $content, 'status_code' => $status_code, 'message' => $message)
			= HttpUtil::loadFromUrl($metaUrl, $maxLength, $timeout_s);

		if ($status_code == 200) {
			return $parseResult($content);
		} else {
			$this->logger->log("Failed to read $metaUrl: $status_code $message", 'debug');
			return null;
		}
	}

	public function readShoutcastV1Metadata(string $streamUrl) : ?array {
		// cut the URL from the last '/' and append 7.html
		$lastSlash = \strrpos($streamUrl, '/');
		$metaUrl = \substr($streamUrl, 0, $lastSlash) . '/7.html';

		return $this->readMetadata($metaUrl, function ($content) {
			// parsing logic borrowed from https://github.com/IntellexApps/shoutcast/blob/master/src/Info.php

			// get rid of the <html><body>...</html></body> decorations and extra spacing:
			$content = \preg_replace("[\n\t]", '', \trim(\strip_tags($content)));

			// parse fields, allowing only the expected format
			$match = [];
			if (!\preg_match('~^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*,(.*?)$~', $content, $match)) {
				return null;
			} else {
				return [
					'type' => 'shoutcast-v1',
					'title' => $match[7],
					'bitrate' => $match[6]
				];
			}
		});
	}

	public function readShoutcastV2Metadata(string $streamUrl) : ?array {
		// cut the URL from the last '/' and append 'stats'
		$lastSlash = \strrpos($streamUrl, '/');
		$metaUrl = \substr($streamUrl, 0, $lastSlash) . '/stats';

		return $this->readMetadata($metaUrl, function ($content) {
			$rootNode = \simplexml_load_string($content, \SimpleXMLElement::class, LIBXML_NOCDATA);
			if ($rootNode === false || $rootNode->getName() != 'SHOUTCASTSERVER') {
				return null;
			} else {
				return [
					'type' => 'shoutcast-v2',
					'title' => (string)$rootNode->SONGTITLE,
					'station' => (string)$rootNode->SERVERTITLE,
					'homepage' => (string)$rootNode->SERVERURL,
					'genre' => (string)$rootNode->SERVERGENRE,
					'bitrate' => (string)$rootNode->BITRATE
				];
			}
		});
	}

	public function readIcecastMetadata(string $streamUrl) : ?array {
		// cut the URL from the last '/' and append 'status-json.xsl'
		$lastSlash = \strrpos($streamUrl, '/');
		$metaUrl = \substr($streamUrl, 0, $lastSlash) . '/status-json.xsl';

		return $this->readMetadata($metaUrl, function ($content) use ($streamUrl) {
			\mb_substitute_character(0xFFFD); // Use the Unicode REPLACEMENT CHARACTER (U+FFFD)
			$content = \mb_convert_encoding($content, 'UTF-8', 'UTF-8');
			$parsed = \json_decode(/** @scrutinizer ignore-type */ $content, true);
			$source = $parsed['icestats']['source'] ?? null;

			if (!\is_array($source)) {
				return null;
			} else {
				// There may be one or multiple sources and the structure is slightly different in these two cases.
				// In case there are multiple, try to found the source with a matching stream URL.
				if (\is_int(\key($source))) {
					// multiple sources
					foreach ($source as $sourceItem) {
						if ($sourceItem['listenurl'] == $streamUrl) {
							$source = $sourceItem;
							break;
						}
					}
				}

				return [
					'type' => 'icecast',
					'title' => $source['title'] ?? $source['yp_currently_playing'] ?? null,
					'station' => $source['server_name'] ?? null,
					'description' => $source['server_description'] ?? null,
					'homepage' => $source['server_url'] ?? null,
					'genre' => $source['genre'] ?? null,
					'bitrate' => $source['bitrate'] ?? null
				];
			}
		});
	}

	public function readIcyMetadata(string $streamUrl, int $maxattempts, int $maxredirect) : ?array {
		$timeout = 10;
		$result = null;
		$pUrl = self::parseStreamUrl($streamUrl);
		if ($pUrl['sockAddress'] && $pUrl['port']) {
			$fp = \fsockopen($pUrl['sockAddress'], $pUrl['port'], $errno, $errstr, $timeout);
			if ($fp !== false) {
				$out = "GET " . $pUrl['pathname'] . " HTTP/1.1\r\n";
				$out .= "Host: ". $pUrl['hostname'] . "\r\n";
				$out .= "Accept: */*\r\n";
				$out .= HttpUtil::userAgentHeader() . "\r\n";
				$out .= "Icy-MetaData: 1\r\n";
				$out .= "Connection: Close\r\n\r\n";
				\fwrite($fp, $out);
				\stream_set_timeout($fp, $timeout);

				$header = \fread($fp, 1024);
				$headers = \explode("\n", $header);

				if (\strpos($headers[0], "200 OK") !== false) {
					$interval = self::findStrFollowing($headers, "icy-metaint:") ?? '0';
					$interval = (int)$interval;

					if ($interval > 0 && $interval <= 64*1024) {
						$result = [
							'type' => 'icy',
							'title' => null, // fetched below
							'station' => self::findStrFollowing($headers, 'icy-name:'),
							'description' => self::findStrFollowing($headers, 'icy-description:'),
							'homepage' => self::findStrFollowing($headers, 'icy-url:'),
							'genre' => self::findStrFollowing($headers, 'icy-genre:'),
							'bitrate' => self::findStrFollowing($headers, 'icy-br:')
						];

						$attempts = 0;
						while ($attempts < $maxattempts && empty($result['title'])) {
							$bytesToSkip = $interval;
							if ($attempts === 0) {
								// The first chunk containing the header may also already contain the beginning of the body,
								// but this depends on the case. Subtract the body bytes which we already got.
								$headerEndPos = \strpos($header, "\r\n\r\n") + 4;
								$bytesToSkip -= \strlen($header) - $headerEndPos;
							}

							\fseek($fp, $bytesToSkip, SEEK_CUR);

							$result['title'] = self::parseTitleFromStreamMetadata($fp);

							$attempts++;
						}
					}
					\fclose($fp);
				} else {
					\fclose($fp);
					if ($maxredirect > 0 && \strpos($headers[0], "302 Found") !== false) {
						$location = self::findStrFollowing($headers, "Location:");
						if ($location) {
							$result = $this->readIcyMetadata($location, $maxattempts, $maxredirect-1);
						}
					}
				}
			}
		}

		return $result;
	}

	private static function convertUrlOnPlaylistToAbsolute($containedUrl, $playlistUrlParts) {
		if (!StringUtil::startsWith($containedUrl, 'http://', true) && !StringUtil::startsWith($containedUrl, 'https://', true)) {
			$urlParts = $playlistUrlParts;
			$path = $urlParts['path'];
			$lastSlash = \strrpos($path, '/');
			$urlParts['path'] = \substr($path, 0, $lastSlash + 1) . $containedUrl;
			unset($urlParts['query']);
			unset($urlParts['fragment']);
			$containedUrl = Util::buildUrl($urlParts);
		}
		return $containedUrl;
	}

	/**
	 * Sometimes the URL given as stream URL points to a playlist which in turn contains the actual
	 * URL to be streamed. This function resolves such indirections.
	 */
	public function resolveStreamUrl(string $url) : array {
		// the default output for non-playlist URLs:
		$resolvedUrl = $url;
		$isHls = false;

		$urlParts = \parse_url($url);
		$lcPath = \mb_strtolower($urlParts['path'] ?? '/');

		$isPls = StringUtil::endsWith($lcPath, '.pls');
		$isM3u = !$isPls && (StringUtil::endsWith($lcPath, '.m3u') || StringUtil::endsWith($lcPath, '.m3u8'));

		if ($isPls || $isM3u) {
			$maxLength = 8 * 1024;
			list('content' => $content, 'status_code' => $status_code, 'message' => $message) = HttpUtil::loadFromUrl($url, $maxLength);

			if ($status_code != 200) {
				$this->logger->log("Could not read radio playlist from $url: $status_code $message", 'debug');
			} elseif (\strlen($content) >= $maxLength) {
				$this->logger->log("The URL $url seems to be the stream although the extension suggests it's a playlist", 'debug');
			} else if ($isPls) {
				$entries = PlaylistFileService::parsePlsContent($content);
			} else {
				$isHls = (\strpos($content, '#EXT-X-MEDIA-SEQUENCE') !== false);
				if ($isHls) {
					$token = $this->tokenService->tokenForUrl($url);
					$resolvedUrl = $this->urlGenerator->linkToRoute('music.radioApi.hlsManifest',
							['url' => \rawurlencode($url), 'token' => \rawurlencode($token)]);
				} else {
					$entries = PlaylistFileService::parseM3uContent($content);
				}
			}

			if (!empty($entries)) {
				$resolvedUrl = $entries[0]['path'];
				// the path in the playlist may be relative => convert to absolute
				$resolvedUrl = self::convertUrlOnPlaylistToAbsolute($resolvedUrl, $urlParts);
			}
		}

		// make a recursive call if the URL got changed
		if (!$isHls && $url != $resolvedUrl) {
			return $this->resolveStreamUrl($resolvedUrl);
		} else {
			return [
				'url' => $resolvedUrl,
				'hls' => $isHls
			];
		}
	}

	public function getHlsManifest(string $url) : array {
		$maxLength = 8 * 1024;
		$result = HttpUtil::loadFromUrl($url, $maxLength);

		if ($result['status_code'] == 200) {
			$manifestUrlParts = \parse_url($url);

			// read the manifest line-by-line, and create a modified copy where each fragment URL is relayed through this server
			$fp = \fopen("php://temp", 'r+');
			\assert($fp !== false, 'Unexpected error: opening temporary stream failed');

			\fputs($fp, /** @scrutinizer ignore-type */ $result['content']);
			\rewind($fp);

			$content = '';
			while ($line = \fgets($fp)) {
				$line = \trim($line);
				if (!empty($line) && !StringUtil::startsWith($line, '#')) {
					$segUrl = self::convertUrlOnPlaylistToAbsolute($line, $manifestUrlParts);
					$segToken = $this->tokenService->tokenForUrl($segUrl);
					$line = $this->urlGenerator->linkToRoute('music.radioApi.hlsSegment',
							['url' => \rawurlencode($segUrl), 'token' => \rawurlencode($segToken)]);
				}
				$content .= $line . "\n";
			}
			$result['content'] = $content;

			\fclose($fp);
		} else {
			$this->logger->log("Failed to read manifest from $url: {$result['status_code']} {$result['message']}", 'warn');
		}

		return $result;
	}

}


1			<?php declare(strict_types=1);
2
3			/**
4			* ownCloud - Music app
5			*
6			* This file is licensed under the Affero General Public License version 3 or
7			* later. See the COPYING file.
8			*
9			* @author Moahmed-Ismail MEJRI <[email protected]>
10			* @author Pauli Järvinen <[email protected]>
11			* @copyright Moahmed-Ismail MEJRI 2022
12			* @copyright Pauli Järvinen 2022 - 2025
13			*/
14
15			namespace OCA\Music\Service;
16
17			use OCA\Music\AppFramework\Core\Logger;
18			use OCA\Music\Utility\HttpUtil;
19			use OCA\Music\Utility\StringUtil;
20			use OCA\Music\Utility\Util;
21			use OCP\IURLGenerator;
22
23			/**
24			* MetaData radio utility functions
25			*/
26			class RadioService {
27
28			private IURLGenerator $urlGenerator;
29			private StreamTokenService $tokenService;
30			private Logger $logger;
31
32			public function __construct(IURLGenerator $urlGenerator, StreamTokenService $tokenService, Logger $logger) {
33			$this->urlGenerator = $urlGenerator;
34			$this->tokenService = $tokenService;
35			$this->logger = $logger;
36			}
37
38			/**
39			* Loop through the array and try to find the given key. On match, return the
40			* text in the array cell following the key. Whitespace is trimmed from the result.
41			*/
42			private static function findStrFollowing(array $data, string $key) : ?string {
43			foreach ($data as $value) {
44			$find = \strstr($value, $key);
45			if ($find !== false) {
46			return \trim(\substr($find, \strlen($key)));
47			}
48			}
49			return null;
50			}
51
52			private static function parseStreamUrl(string $url) : array {
53			$ret = [];
54			$parse_url = \parse_url($url);
55
56			$ret['port'] = 80;
57			if (isset($parse_url['port'])) {
58			$ret['port'] = $parse_url['port'];
59			} else if ($parse_url['scheme'] == "https") {
60			$ret['port'] = 443;
61			}
62
63			$ret['scheme'] = $parse_url['scheme'];
64			$ret['hostname'] = $parse_url['host'];
65			$ret['pathname'] = $parse_url['path'] ?? '/';
66
67			if (isset($parse_url['query'])) {
68			$ret['pathname'] .= "?" . $parse_url['query'];
69			}
70
71			if ($parse_url['scheme'] == "https") {
72			$ret['sockAddress'] = "ssl://" . $ret['hostname'];
73			} else {
74			$ret['sockAddress'] = $ret['hostname'];
75			}
76
77			return $ret;
78			}
79
80			private static function parseTitleFromStreamMetadata($fp) : ?string {
81			$meta_length = \ord(\fread($fp, 1)) * 16;
82			if ($meta_length) {
83			$metadatas = \explode(';', \fread($fp, $meta_length));
84			$title = self::findStrFollowing($metadatas, "StreamTitle=");
85			if ($title) {
86			return StringUtil::truncate(\trim($title, "'"), 256);
87			}
88			}
89			return null;
90			}
91
92			private function readMetadata(string $metaUrl, callable $parseResult) : ?array {
93			$maxLength = 32 * 1024;
94			$timeout_s = 8;
95			list('content' => $content, 'status_code' => $status_code, 'message' => $message)
96			= HttpUtil::loadFromUrl($metaUrl, $maxLength, $timeout_s);
97
98			if ($status_code == 200) {
99			return $parseResult($content);
100			} else {
101			$this->logger->log("Failed to read $metaUrl: $status_code $message", 'debug');
102			return null;
103			}
104			}
105
106			public function readShoutcastV1Metadata(string $streamUrl) : ?array {
107			// cut the URL from the last '/' and append 7.html
108			$lastSlash = \strrpos($streamUrl, '/');
109			$metaUrl = \substr($streamUrl, 0, $lastSlash) . '/7.html';
110
111			return $this->readMetadata($metaUrl, function ($content) {
112			// parsing logic borrowed from https://github.com/IntellexApps/shoutcast/blob/master/src/Info.php
113
114			// get rid of the <html><body>...</html></body> decorations and extra spacing:
115			$content = \preg_replace("[\n\t]", '', \trim(\strip_tags($content)));
116
117			// parse fields, allowing only the expected format
118			$match = [];
119			if (!\preg_match('~^(\d+)\s,\s(\d+)\s,\s(\d+)\s,\s(\d+)\s,\s(\d+)\s,\s(\d+)\s,(.?)$~', $content, $match)) {
120			return null;
121			} else {
122			return [
123			'type' => 'shoutcast-v1',
124			'title' => $match[7],
125			'bitrate' => $match[6]
126			];
127			}
128			});
129			}
130
131			public function readShoutcastV2Metadata(string $streamUrl) : ?array {
132			// cut the URL from the last '/' and append 'stats'
133			$lastSlash = \strrpos($streamUrl, '/');
134			$metaUrl = \substr($streamUrl, 0, $lastSlash) . '/stats';
135
136			return $this->readMetadata($metaUrl, function ($content) {
137			$rootNode = \simplexml_load_string($content, \SimpleXMLElement::class, LIBXML_NOCDATA);
138			if ($rootNode === false \|\| $rootNode->getName() != 'SHOUTCASTSERVER') {
139			return null;
140			} else {
141			return [
142			'type' => 'shoutcast-v2',
143			'title' => (string)$rootNode->SONGTITLE,
144			'station' => (string)$rootNode->SERVERTITLE,
145			'homepage' => (string)$rootNode->SERVERURL,
146			'genre' => (string)$rootNode->SERVERGENRE,
147			'bitrate' => (string)$rootNode->BITRATE
148			];
149			}
150			});
151			}
152
153			public function readIcecastMetadata(string $streamUrl) : ?array {
154			// cut the URL from the last '/' and append 'status-json.xsl'
155			$lastSlash = \strrpos($streamUrl, '/');
156			$metaUrl = \substr($streamUrl, 0, $lastSlash) . '/status-json.xsl';
157
158			return $this->readMetadata($metaUrl, function ($content) use ($streamUrl) {
159			\mb_substitute_character(0xFFFD); // Use the Unicode REPLACEMENT CHARACTER (U+FFFD)
160			$content = \mb_convert_encoding($content, 'UTF-8', 'UTF-8');
161			$parsed = \json_decode(/** @scrutinizer ignore-type */ $content, true);
162			$source = $parsed['icestats']['source'] ?? null;
163
164			if (!\is_array($source)) {
165			return null;
166			} else {
167			// There may be one or multiple sources and the structure is slightly different in these two cases.
168			// In case there are multiple, try to found the source with a matching stream URL.
169			if (\is_int(\key($source))) {
170			// multiple sources
171			foreach ($source as $sourceItem) {
172			if ($sourceItem['listenurl'] == $streamUrl) {
173			$source = $sourceItem;
174			break;
175			}
176			}
177			}
178
179			return [
180			'type' => 'icecast',
181			'title' => $source['title'] ?? $source['yp_currently_playing'] ?? null,
182			'station' => $source['server_name'] ?? null,
183			'description' => $source['server_description'] ?? null,
184			'homepage' => $source['server_url'] ?? null,
185			'genre' => $source['genre'] ?? null,
186			'bitrate' => $source['bitrate'] ?? null
187			];
188			}
189			});
190			}
191
192			public function readIcyMetadata(string $streamUrl, int $maxattempts, int $maxredirect) : ?array {
193			$timeout = 10;
194			$result = null;
195			$pUrl = self::parseStreamUrl($streamUrl);
196			if ($pUrl['sockAddress'] && $pUrl['port']) {
197			$fp = \fsockopen($pUrl['sockAddress'], $pUrl['port'], $errno, $errstr, $timeout);
198			if ($fp !== false) {
199			$out = "GET " . $pUrl['pathname'] . " HTTP/1.1\r\n";
200			$out .= "Host: ". $pUrl['hostname'] . "\r\n";
201			$out .= "Accept: /\r\n";
202			$out .= HttpUtil::userAgentHeader() . "\r\n";
203			$out .= "Icy-MetaData: 1\r\n";
204			$out .= "Connection: Close\r\n\r\n";
205			\fwrite($fp, $out);
206			\stream_set_timeout($fp, $timeout);
207
208			$header = \fread($fp, 1024);
209			$headers = \explode("\n", $header);
210
211			if (\strpos($headers[0], "200 OK") !== false) {
212			$interval = self::findStrFollowing($headers, "icy-metaint:") ?? '0';
213			$interval = (int)$interval;
214
215			if ($interval > 0 && $interval <= 64*1024) {
216			$result = [
217			'type' => 'icy',
218			'title' => null, // fetched below
219			'station' => self::findStrFollowing($headers, 'icy-name:'),
220			'description' => self::findStrFollowing($headers, 'icy-description:'),
221			'homepage' => self::findStrFollowing($headers, 'icy-url:'),
222			'genre' => self::findStrFollowing($headers, 'icy-genre:'),
223			'bitrate' => self::findStrFollowing($headers, 'icy-br:')
224			];
225
226			$attempts = 0;
227			while ($attempts < $maxattempts && empty($result['title'])) {
228			$bytesToSkip = $interval;
229			if ($attempts === 0) {
230			// The first chunk containing the header may also already contain the beginning of the body,
231			// but this depends on the case. Subtract the body bytes which we already got.
232			$headerEndPos = \strpos($header, "\r\n\r\n") + 4;
233			$bytesToSkip -= \strlen($header) - $headerEndPos;
234			}
235
236			\fseek($fp, $bytesToSkip, SEEK_CUR);
237
238			$result['title'] = self::parseTitleFromStreamMetadata($fp);
239
240			$attempts++;
241			}
242			}
243			\fclose($fp);
244			} else {
245			\fclose($fp);
246			if ($maxredirect > 0 && \strpos($headers[0], "302 Found") !== false) {
247			$location = self::findStrFollowing($headers, "Location:");
248			if ($location) {
249			$result = $this->readIcyMetadata($location, $maxattempts, $maxredirect-1);
250			}
251			}
252			}
253			}
254			}
255
256			return $result;
257			}
258
259			private static function convertUrlOnPlaylistToAbsolute($containedUrl, $playlistUrlParts) {
260			if (!StringUtil::startsWith($containedUrl, 'http://', true) && !StringUtil::startsWith($containedUrl, 'https://', true)) {
261			$urlParts = $playlistUrlParts;
262			$path = $urlParts['path'];
263			$lastSlash = \strrpos($path, '/');
264			$urlParts['path'] = \substr($path, 0, $lastSlash + 1) . $containedUrl;
265			unset($urlParts['query']);
266			unset($urlParts['fragment']);
267			$containedUrl = Util::buildUrl($urlParts);
268			}
269			return $containedUrl;
270			}
271
272			/**
273			* Sometimes the URL given as stream URL points to a playlist which in turn contains the actual
274			* URL to be streamed. This function resolves such indirections.
275			*/
276			public function resolveStreamUrl(string $url) : array {
277			// the default output for non-playlist URLs:
278			$resolvedUrl = $url;
279			$isHls = false;
280
281			$urlParts = \parse_url($url);
282			$lcPath = \mb_strtolower($urlParts['path'] ?? '/');
283
284			$isPls = StringUtil::endsWith($lcPath, '.pls');
285			$isM3u = !$isPls && (StringUtil::endsWith($lcPath, '.m3u') \|\| StringUtil::endsWith($lcPath, '.m3u8'));
286
287			if ($isPls \|\| $isM3u) {
288			$maxLength = 8 * 1024;
289			list('content' => $content, 'status_code' => $status_code, 'message' => $message) = HttpUtil::loadFromUrl($url, $maxLength);
290
291			if ($status_code != 200) {
292			$this->logger->log("Could not read radio playlist from $url: $status_code $message", 'debug');
293			} elseif (\strlen($content) >= $maxLength) {
294			$this->logger->log("The URL $url seems to be the stream although the extension suggests it's a playlist", 'debug');
295			} else if ($isPls) {
296			$entries = PlaylistFileService::parsePlsContent($content);
297			} else {
298			$isHls = (\strpos($content, '#EXT-X-MEDIA-SEQUENCE') !== false);
299			if ($isHls) {
300			$token = $this->tokenService->tokenForUrl($url);
301			$resolvedUrl = $this->urlGenerator->linkToRoute('music.radioApi.hlsManifest',
302			['url' => \rawurlencode($url), 'token' => \rawurlencode($token)]);
303			} else {
304			$entries = PlaylistFileService::parseM3uContent($content);
305			}
306			}
307
308			if (!empty($entries)) {
309			$resolvedUrl = $entries[0]['path'];
310			// the path in the playlist may be relative => convert to absolute
311			$resolvedUrl = self::convertUrlOnPlaylistToAbsolute($resolvedUrl, $urlParts);
312			}
313			}
314
315			// make a recursive call if the URL got changed
316			if (!$isHls && $url != $resolvedUrl) {
317			return $this->resolveStreamUrl($resolvedUrl);
318			} else {
319			return [
320			'url' => $resolvedUrl,
321			'hls' => $isHls
322			];
323			}
324			}
325
326			public function getHlsManifest(string $url) : array {
327			$maxLength = 8 * 1024;
328			$result = HttpUtil::loadFromUrl($url, $maxLength);
329
330			if ($result['status_code'] == 200) {
331			$manifestUrlParts = \parse_url($url);
332
333			// read the manifest line-by-line, and create a modified copy where each fragment URL is relayed through this server
334			$fp = \fopen("php://temp", 'r+');
335			\assert($fp !== false, 'Unexpected error: opening temporary stream failed');
336
337			\fputs($fp, /** @scrutinizer ignore-type */ $result['content']);
338			\rewind($fp);
339
340			$content = '';
341			while ($line = \fgets($fp)) {
342			$line = \trim($line);
343			if (!empty($line) && !StringUtil::startsWith($line, '#')) {
344			$segUrl = self::convertUrlOnPlaylistToAbsolute($line, $manifestUrlParts);
345			$segToken = $this->tokenService->tokenForUrl($segUrl);
346			$line = $this->urlGenerator->linkToRoute('music.radioApi.hlsSegment',
347			['url' => \rawurlencode($segUrl), 'token' => \rawurlencode($segToken)]);
348			}
349			$content .= $line . "\n";
350			}
351			$result['content'] = $content;
352
353			\fclose($fp);
354			} else {
355			$this->logger->log("Failed to read manifest from $url: {$result['status_code']} {$result['message']}", 'warn');
356			}
357
358			return $result;
359			}
360
361			}
362

owncloud / music

Push — master ( f358a5...b5f949 )

RadioService::readIcecastMetadata() A

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