← All changes | classes/Video_Stream.php +150 -63 1.0.5 → 2.5.0 View file →

		@@ -1,131 +1,218 @@
1	1	<?php
2	2	/**
3		- * Created by PhpStorm.
4		- * User: mhshohel
5		- * Date: 24/9/18
6		- * Time: 4:03 PM
	3	+ * Video Stream
	4	+ *
	5	+ * @package Tutor\VideoStream
	6	+ * @author Themeum <support@themeum.com>
	7	+ * @link https://themeum.com
	8	+ * @since 1.0.0
7	9	*/
8	10
9	11	namespace TUTOR;
10	12
11		-if ( ! defined( 'ABSPATH' ) )
	13	+if ( ! defined( 'ABSPATH' ) ) {
12	14	exit;
	15	+}
13	16
14	17
15	18	/**
16	19	* Class Video_Stream
17		- * @package TUTOR
18	20	*
19		- * TUTOR Video Stream Class
20		- * @since v.1.0.0
	21	+ * @since 1.0.0
21	22	*/
	23	+class Video_Stream {
22	24
23		-class Video_Stream {
	25	+ /**
	26	+ * Path
	27	+ *
	28	+ * @since 1.0.0
	29	+ *
	30	+ * @var string
	31	+ */
	32	+ private $path = '';
24	33
25		- private $path = "";
26		- private $stream = "";
	34	+ /**
	35	+ * Stream
	36	+ *
	37	+ * @since 1.0.0
	38	+ *
	39	+ * @var string
	40	+ */
	41	+ private $stream = '';
	42	+
	43	+ /**
	44	+ * Buffer time
	45	+ *
	46	+ * @since 1.0.0
	47	+ *
	48	+ * @var string
	49	+ */
27	50	private $buffer = 102400;
28		- private $start = -1;
29		- private $end = -1;
30		- private $size = 0;
31	51
32		- private $videoFormats;
	52	+ /**
	53	+ * Start
	54	+ *
	55	+ * @since 1.0.0
	56	+ *
	57	+ * @var int
	58	+ */
	59	+ private $start = -1;
33	60
34		- function __construct($filePath) {
35		- $this->videoFormats = apply_filters('tutor_video_types', array("mp4"=>"video/mp4", "webm"=>"video/webm", "ogg"=>"video/ogg")) ;
36		- $this->path = $filePath;
	61	+ /**
	62	+ * End
	63	+ *
	64	+ * @since 1.0.0
	65	+ *
	66	+ * @var int
	67	+ */
	68	+ private $end = -1;
	69	+
	70	+ /**
	71	+ * Size
	72	+ *
	73	+ * @since 1.0.0
	74	+ *
	75	+ * @var int
	76	+ */
	77	+ private $size = 0;
	78	+
	79	+ /**
	80	+ * Video format
	81	+ *
	82	+ * @since 1.0.0
	83	+ *
	84	+ * @var string
	85	+ */
	86	+ private $video_format;
	87	+
	88	+ /**
	89	+ * Resolve dependencies
	90	+ *
	91	+ * @since 1.0.0
	92	+ *
	93	+ * @param string $file_path file path.
	94	+ */
	95	+ public function __construct( $file_path ) {
	96	+ $this->video_format = apply_filters(
	97	+ 'tutor_video_types',
	98	+ array(
	99	+ 'mp4' => 'video/mp4',
	100	+ 'webm' => 'video/webm',
	101	+ 'ogg' => 'video/ogg',
	102	+ )
	103	+ );
	104	+ $this->path = $file_path;
37	105	}
38	106
39	107	/**
40	108	* Open stream
	109	+ *
	110	+ * @since 1.0.0
	111	+ *
	112	+ * @return void
41	113	*/
42	114	private function open() {
43		- if (!($this->stream = fopen($this->path, 'rb'))) {
44		- die('Could not open stream for reading');
	115	+ $this->stream = fopen( $this->path, 'rb' );
	116	+ if ( ! ( $this->stream ) ) {
	117	+ die( 'Could not open stream for reading' );
45	118	}
46	119	}
47	120
48	121	/**
49	122	* Set proper header to serve the video content
	123	+ *
	124	+ * @since 1.0.0
	125	+ *
	126	+ * @return void
50	127	*/
51		- private function setHeader() {
	128	+ private function set_header() {
52	129	ob_get_clean();
53	130
54		- header("Content-Type: {$this->videoFormats[strtolower(pathinfo($this->path, PATHINFO_EXTENSION))]}");
55		- header("Cache-Control: max-age=2592000, public");
56		- header("Expires: ".gmdate('D, d M Y H:i:s', time()+2592000) . ' GMT');
57		- header("Last-Modified: ".gmdate('D, d M Y H:i:s', @filemtime($this->path)) . ' GMT' );
	131	+ header( 'Content-Type: ' . $this->video_format[ strtolower( pathinfo( $this->path, PATHINFO_EXTENSION ) ) ] );
	132	+ header( 'Cache-Control: max-age=2592000, public' );
	133	+ header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', tutor_time() + 2592000 ) . ' GMT' );
	134	+ header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s', @filemtime( $this->path ) ) . ' GMT' );
58	135	$this->start = 0;
59		- $this->size = filesize($this->path);
	136	+ $this->size = filesize( $this->path );
60	137	$this->end = $this->size - 1;
61		- header("Accept-Ranges: 0-".$this->end);
	138	+ header( 'Accept-Ranges: 0-' . $this->end );
62	139
63		- if (isset($_SERVER['HTTP_RANGE'])) {
64		- $c_end = $this->end;
65		- list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
	140	+ if ( isset( $_SERVER['HTTP_RANGE'] ) ) {
	141	+ $c_end = $this->end;
	142	+ list(, $range) = explode( '=', sanitize_text_field( wp_unslash( $_SERVER['HTTP_RANGE'] ) ), 2 );
66	143
67		- if ($range == '-') {
68		- $c_start = $this->size - substr($range, 1);
69		- }else{
70		- $range = explode('-', $range);
	144	+ if ( '-' == $range ) {
	145	+ $c_start = $this->size - substr( $range, 1 );
	146	+ } else {
	147	+ $range = explode( '-', $range );
71	148	$c_start = $range[0];
72	149
73		- $c_end = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $c_end;
	150	+ $c_end = ( isset( $range[1] ) && is_numeric( $range[1] ) ) ? $range[1] : $c_end;
74	151	}
75		- $c_end = ($c_end > $this->end) ? $this->end : $c_end;
76		- if ($c_start > $c_end || $c_start > $this->size - 1 || $c_end >= $this->size) {
77		- header('HTTP/1.1 416 Requested Range Not Satisfiable');
78		- header("Content-Range: bytes $this->start-$this->end/$this->size");
	152	+ $c_end = ( $c_end > $this->end ) ? $this->end : $c_end;
	153	+ if ( $c_start > $c_end || $c_start > $this->size - 1 || $c_end >= $this->size ) {
	154	+ header( 'HTTP/1.1 416 Requested Range Not Satisfiable' );
	155	+ header( "Content-Range: bytes $this->start-$this->end/$this->size" );
79	156	exit;
80	157	}
81	158	$this->start = $c_start;
82		- $this->end = $c_end;
83		- $length = $this->end - $this->start + 1;
84		- header('HTTP/1.1 206 Partial Content');
85		- header("Content-Length: ".$length);
86		- header("Content-Range: bytes $this->start-$this->end/".$this->size);
87		- header("Accept-Ranges: bytes");
	159	+ $this->end = $c_end;
	160	+ $length = $this->end - $this->start + 1;
	161	+ header( 'HTTP/1.1 206 Partial Content' );
	162	+ header( 'Content-Length: ' . $length );
	163	+ header( "Content-Range: bytes $this->start-$this->end/" . $this->size );
	164	+ header( 'Accept-Ranges: bytes' );
	165	+ } else {
	166	+ header( 'Content-Length: ' . $this->size );
88	167	}
89		- else {
90		- header("Content-Length: ".$this->size);
91		- }
92	168
93	169	}
94	170
95	171	/**
96		- * close currently opened stream
	172	+ * Close currently opened stream
	173	+ *
	174	+ * @since 1.0.0
	175	+ *
	176	+ * @return void
97	177	*/
98	178	private function end() {
99		- fclose($this->stream);
	179	+ fclose( $this->stream );
100	180	exit;
101	181	}
102	182
103	183	/**
104		- * perform the streaming of calculated range
	184	+ * Perform the streaming of calculated range
	185	+ *
	186	+ * @since 1.0.0
	187	+ *
	188	+ * @return void
105	189	*/
106	190	private function stream() {
107	191	$i = $this->start;
108		- set_time_limit(0);
109		- while(!feof($this->stream) && $i <= $this->end) {
110		- $bytesToRead = $this->buffer;
111		- if(($i+$bytesToRead) > $this->end) {
112		- $bytesToRead = $this->end - $i + 1;
	192	+ set_time_limit( 0 );
	193	+ while ( ! feof( $this->stream ) && $i <= $this->end ) {
	194	+ $bytes_to_read = $this->buffer;
	195	+ if ( ( $i + $bytes_to_read ) > $this->end ) {
	196	+ $bytes_to_read = $this->end - $i + 1;
113	197	}
114		- //$data = fread($this->stream, $bytesToRead);
115		- $data = @stream_get_contents($this->stream, $bytesToRead, $i);
116		- echo $data;
	198	+ $data = @stream_get_contents( $this->stream, $bytes_to_read, $i );
	199	+ echo wp_kses_post( $data );
117	200	flush();
118		- $i += $bytesToRead;
	201	+ $i += $bytes_to_read;
119	202	}
120	203	}
121	204
122	205	/**
123	206	* Start streaming tutor video content
	207	+ *
	208	+ * @since 1.0.0
	209	+ *
	210	+ * @return void
124	211	*/
125		- function start() {
	212	+ public function start() {
126	213	$this->open();
127		- $this->setHeader();
	214	+ $this->set_header();
128	215	$this->stream();
129	216	$this->end();
130	217	}
131		-}
	218	+}