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116 lines
3.3 KiB
116 lines
3.3 KiB
2 months ago
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<?php
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/**
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* M3u8 Controller
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*/
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require_once __DIR__ . '/../../../lib/DirScanner.php';
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require_once __DIR__ . '/../../../plugins/Parsedown.php';
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require_once __DIR__ . '/../../../plugins/Common.php';
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Class M3u8Controller extends Controller {
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//参数
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//@id - 文件id
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//@cid - 数据缓存id
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//支持nginx secure防盗链：md5={$md5}&expires={$expires}
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public function actionIndex() {
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$videoId = $this->get('id', '');
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$cacheParentDataId = $this->get('cid', '');
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if (empty($videoId) || empty($cacheParentDataId)) {
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throw new Exception("参数缺失！", 403);
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}
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//TODO: 防盗链检查
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//渲染m3u8内容
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$cacheSeconds = 86400;
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$cachedParentData = Common::getCacheFromFile($cacheParentDataId, $cacheSeconds);
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if (empty($cachedParentData)) {
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$err = '缓存数据已失效，如果重新点击目录依然打不开，请联系管理员。';
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throw new Exception($err, 404);
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}
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if (empty($cachedParentData[$videoId])) {
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$erro = "缓存数据中找不到当前视频，请返回上一页重新进入！";
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throw new Exception($err, 404);
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}else if (!empty($cachedParentData)) {
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$m3u8 = $cachedParentData[$videoId];
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$m3u8Content = $this->getM3u8Content($m3u8['realpath'], $cachedParentData);
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if (!empty($m3u8Content)) {
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return $this->renderM3u8($m3u8Content);
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}else {
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$err = 'm3u8内容为空！';
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throw new Exception($err, 500);
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}
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}
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}
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//生成m3u8内容，支持ts防盗链
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/**
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* M3u8 content sample:
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#EXTM3U
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#EXT-X-VERSION:3
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#EXT-X-TARGETDURATION:6
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#EXT-X-PLAYLIST-TYPE:VOD
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#EXTINF:5,
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0.ts
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#EXTINF:5,
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1.ts
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#EXTINF:5,
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2.ts
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#EXTINF:5,
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3.ts
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#EXTINF:5,
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4.ts
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#EXTINF:0.31697,
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5.ts
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#EXT-X-ENDLIST
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**/
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protected function getM3u8Content($m3u8_realpath, $cachedParentData = array()) {
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$m3u8Content = file_get_contents($m3u8_realpath);
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if (empty($m3u8Content) || strpos($m3u8Content, 'EXTM3U') === false) {
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return false;
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}
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$lines = preg_split("/[\r\n]/", $m3u8Content);
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$newContent = '';
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foreach($lines as $index => $line) {
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if (strpos($line, '.ts') !== false) {
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$newContent .= $this->getRelativePathOfTs($line, $m3u8_realpath, $cachedParentData) . "\n";
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}else if (!empty($line)) {
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$newContent .= $line . "\n";
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}
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}
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return $newContent;
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}
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//返回ts相对当前m3u8文件的相对路径
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//TODO: 支持防盗链
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protected function getRelativePathOfTs($ts_filename, $m3u8_realpath, $cachedParentData = array()) {
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if (!empty($cachedParentData)) {
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$matchedTs = null;
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foreach($cachedParentData as $item) {
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if ($item['extension'] == 'ts' && strpos($item['path'], $ts_filename) !== false) {
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$matchedTs = $item;
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break;
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}
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}
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if (!empty($matchedTs)) {
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return $matchedTs['path'];
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}else {
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$webroot = FSC::$app['config']['content_directory'];
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$rootDir = __DIR__ . '/../../../www/' . $webroot;
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$rootDir = realpath($rootDir);
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$m3u8Dir = dirname($m3u8_realpath);
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$relativeDir = str_replace("{$rootDir}/", '', $m3u8Dir);
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return "/{$webroot}{$relativeDir}/{$ts_filename}";
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}
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}
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return dirname($m3u8_realpath) . "/{$ts_filename}";
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}
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}
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