fv-player / models / linode-object-storage.class.php

linode-object-storage.class.php in FV Player 8 trunk, at models/linode-object-storage.class.php

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1	<?php
2
3	if ( ! defined( 'ABSPATH' ) ) {
4	exit;
5	}
6
7	if( !class_exists('FV_Player_Linode_Object_Storage') ) :
8
9	class FV_Player_Linode_Object_Storage extends FV_Player_CDN {
10
11	function __construct() {
12
13	if ( ! defined( 'ABSPATH' ) ) {
14	exit;
15	}
16
17	// TODO: What if FV Player is not yet loaded?
18	add_action( 'plugins_loaded', array( $this, 'include_linode_media_browser' ), 9 );
19	parent::__construct( array( 'key' => 'linode_object_storage', 'title' => 'Linode Object Storage') );
20	}
21
22	// includes the Digital Ocean Spaces handling class itself
23	public function include_linode_media_browser() {
24	if ( is_admin() && version_compare(phpversion(),'5.5.0') != -1 ) {
25	include( dirname( __FILE__ ) . '/linode-object-storage-browser.class.php' );
26	}
27	}
28
29	function get_endpoint() {
30	global $fv_fp;
31	$parsed = wp_parse_url( $fv_fp->_get_option( array($this->key,'endpoint' ) ) );
32
33	if( count($parsed) == 1 && !empty($parsed['path']) ) {
34	return $parsed['path'];
35
36	} else if( !empty($parsed['host']) ) {
37	return $parsed['host'];
38
39	}
40	return false;
41	}
42
43	function get_domains() {
44	global $fv_fp;
45	$space = $fv_fp->_get_option( array($this->key,'space' ) );
46	$endpoint = $this->get_endpoint();
47	if( $space && $endpoint ) {
48	return array( $space.'.'.$endpoint, $endpoint.'/'.$space );
49	}
50	return false;
51	}
52
53	function get_region() {
54	$parts = explode( '.', $this->get_endpoint() );
55	return $parts[0];
56	}
57
58	function get_secure_tokens() {
59	global $fv_fp;
60	return $fv_fp->_get_option( array($this->key,'key' ) ) && $fv_fp->_get_option( array($this->key,'secret' ) );
61	}
62
63	function options() {
64	// TODO: Fix width
65	// TODO: Add custom domain for CDN
66	global $fv_fp;
67	?>
68	<table class="form-table2" style="margin: 5px; ">
69	<?php
70	$fv_fp->_get_input_text( array(
71	'key' => array($this->key,'space'),
72	'name' => 'Storage Name',
73	'first_td_class' => 'first'
74	) );
75	$fv_fp->_get_input_text( array(
76	'key' => array($this->key,'endpoint'),
77	'name' => 'Endpoint'
78	) );
79	$fv_fp->_get_input_text( array(
80	'key' => array($this->key,'key'),
81	'name' => 'Key'
82	) );
83	$fv_fp->_get_input_text( array(
84	'key' => array($this->key,'secret'),
85	'name' => 'Secret',
86	'secret' => true
87	) );
88	?>
89	<tr>
90	<td colspan="4">
91	<a class="fv-wordpress-flowplayer-save button button-primary" href="#" style="margin-top: 2ex;"><?php esc_html_e( 'Save', 'fv-player' ); ?></a>
92	</td>
93	</tr>
94	</table>
95	<?php
96	}
97
98	function secure_link( $url, $secret, $ttl = false ) {
99	global $fv_fp;
100	$key = $fv_fp->_get_option( array($this->key,'key' ) );
101	$secret = $fv_fp->_get_option( array($this->key,'secret' ) );
102	$endpoint = $fv_fp->_get_option( array($this->key,'endpoint' ) );
103	$endpoint = explode('.',$endpoint);
104	$endpoint = $endpoint[0];
105
106	/$path = preg_replace( '~.?//.*?/~', '/', $url );
107	$expires = time() + ( $ttl ? $ttl : apply_filters('fv_player_secure_link_timeout', 900) );
108	$md5 = base64_encode(md5($path . $secret . $expires, true));
109	$md5 = strtr($md5, '+/', '-_');
110	$md5 = str_replace('=', '', $md5);
111	$url = str_replace( $path, $path."?token=".$md5."&expire=".$expires, $url );*/
112
113	$time = $ttl ? $ttl : apply_filters('fv_player_secure_link_timeout', 900);
114
115	$url_components = wp_parse_url($url);
116
117	$sXAMZDate = gmdate('Ymd\THis\Z');
118	$sDate = gmdate('Ymd');
119	$sCredentialScope = $sDate."/".$endpoint."/s3/aws4_request"; // todo: variable
120	$sSignedHeaders = "host";
121	$sXAMZCredential = urlencode( $key.'/'.$sCredentialScope);
122
123	// 1. http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
124	$sCanonicalRequest = "GET\n";
125	$sCanonicalRequest .= $url_components['path']."\n";
126	$sCanonicalRequest .= "X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=$sXAMZCredential&X-Amz-Date=$sXAMZDate&X-Amz-Expires=$time&X-Amz-SignedHeaders=$sSignedHeaders\n";
127	$sCanonicalRequest .= "host:".$url_components['host']."\n";
128	$sCanonicalRequest .= "\n$sSignedHeaders\n";
129	$sCanonicalRequest .= "UNSIGNED-PAYLOAD";
130
131	// 2. http://docs.aws.amazon.com/general/latest/gr/sigv4-create-string-to-sign.html
132	$sStringToSign = "AWS4-HMAC-SHA256\n";
133	$sStringToSign .= "$sXAMZDate\n";
134	$sStringToSign .= "$sCredentialScope\n";
135	$sStringToSign .= hash('sha256',$sCanonicalRequest);
136
137	// 3. http://docs.aws.amazon.com/general/latest/gr/sigv4-calculate-signature.html
138	$sSignature = hash_hmac('sha256', $sDate, "AWS4".$secret, true );
139	$sSignature = hash_hmac('sha256', $endpoint, $sSignature, true ); // todo: variable
140	$sSignature = hash_hmac('sha256', 's3', $sSignature, true );
141	$sSignature = hash_hmac('sha256', 'aws4_request', $sSignature, true );
142	$sSignature = hash_hmac('sha256', $sStringToSign, $sSignature );
143
144	// 4. http://docs.aws.amazon.com/general/latest/gr/sigv4-add-signature-to-request.html
145	$url .= "?X-Amz-Algorithm=AWS4-HMAC-SHA256";
146	$url .= "&X-Amz-Credential=$sXAMZCredential";
147	$url .= "&X-Amz-Date=$sXAMZDate";
148	$url .= "&X-Amz-Expires=$time";
149	$url .= "&X-Amz-SignedHeaders=$sSignedHeaders";
150	$url .= "&X-Amz-Signature=".$sSignature;
151
152	return $url;
153	}
154
155	}
156
157	global $FV_Player_Linode_Object_Storage;
158	$FV_Player_Linode_Object_Storage = new FV_Player_Linode_Object_Storage;
159
160	endif;
161