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1 /* | 1 /* |
2 * Copyright (C) 2013 Apple Inc. All rights reserved. | 2 * Copyright (C) 2013 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 * THE POSSIBILITY OF SUCH DAMAGE. | 23 * THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #include "config.h" | 26 #include "config.h" |
27 #include "modules/encryptedmedia/MediaKeys.h" | 27 #include "modules/encryptedmedia/MediaKeys.h" |
28 | 28 |
29 #if ENABLE(ENCRYPTED_MEDIA_V2) | |
30 | |
31 #include "core/dom/EventNames.h" | 29 #include "core/dom/EventNames.h" |
32 #include "core/html/HTMLMediaElement.h" | 30 #include "core/html/HTMLMediaElement.h" |
33 #include "core/platform/UUID.h" | 31 #include "core/platform/UUID.h" |
34 #include "modules/encryptedmedia/CDM.h" | 32 #include "core/platform/graphics/ContentDecryptionModule.h" |
35 #include "modules/encryptedmedia/MediaKeyMessageEvent.h" | 33 #include "modules/encryptedmedia/MediaKeyMessageEvent.h" |
36 #include "modules/encryptedmedia/MediaKeySession.h" | 34 #include "modules/encryptedmedia/MediaKeySession.h" |
37 #include "wtf/HashSet.h" | 35 #include "wtf/HashSet.h" |
38 | 36 |
39 namespace WebCore { | 37 namespace WebCore { |
40 | 38 |
41 PassRefPtr<MediaKeys> MediaKeys::create(const String& keySystem, ExceptionCode&
ec) | 39 PassRefPtr<MediaKeys> MediaKeys::create(const String& keySystem, ExceptionCode&
ec) |
42 { | 40 { |
43 // From <http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encry
pted-media.html#dom-media-keys-constructor>: | 41 // From <http://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/e
ncrypted-media.html#dom-media-keys-constructor>: |
44 // The MediaKeys(keySystem) constructor must run the following steps: | 42 // The MediaKeys(keySystem) constructor must run the following steps: |
45 | 43 |
46 // 1. If keySystem is null or an empty string, throw an INVALID_ACCESS_ERR e
xception and abort these steps. | 44 // 1. If keySystem is null or an empty string, throw an INVALID_ACCESS_ERR e
xception and abort these steps. |
47 if (keySystem.isNull() || keySystem.isEmpty()) { | 45 if (keySystem.isEmpty()) { |
48 ec = INVALID_ACCESS_ERR; | 46 ec = INVALID_ACCESS_ERR; |
49 return 0; | 47 return 0; |
50 } | 48 } |
51 | 49 |
52 // 2. If keySystem is not one of the user agent's supported Key Systems, thr
ow a NOT_SUPPORTED_ERR and abort these steps. | 50 // 2. If keySystem is not one of the user agent's supported Key Systems, thr
ow a NOT_SUPPORTED_ERR and abort these steps. |
53 if (!CDM::supportsKeySystem(keySystem)) { | 51 if (!ContentDecryptionModule::supportsKeySystem(keySystem)) { |
54 ec = NOT_SUPPORTED_ERR; | 52 ec = NOT_SUPPORTED_ERR; |
55 return 0; | 53 return 0; |
56 } | 54 } |
57 | 55 |
58 // 3. Let cdm be the content decryption module corresponding to keySystem. | 56 // 3. Let cdm be the content decryption module corresponding to keySystem. |
59 // 4. Load cdm if necessary. | 57 // 4. Load cdm if necessary. |
60 OwnPtr<CDM> cdm = CDM::create(keySystem); | 58 OwnPtr<ContentDecryptionModule> cdm = ContentDecryptionModule::create(keySys
tem); |
| 59 if (!cdm) { |
| 60 ec = NOT_SUPPORTED_ERR; |
| 61 return 0; |
| 62 } |
61 | 63 |
62 // 5. Create a new MediaKeys object. | 64 // 5. Create a new MediaKeys object. |
63 // 5.1 Let the keySystem attribute be keySystem. | 65 // 5.1 Let the keySystem attribute be keySystem. |
64 // 6. Return the new object to the caller. | 66 // 6. Return the new object to the caller. |
65 return adoptRef(new MediaKeys(keySystem, cdm.release())); | 67 return adoptRef(new MediaKeys(keySystem, cdm.release())); |
66 } | 68 } |
67 | 69 |
68 MediaKeys::MediaKeys(const String& keySystem, PassOwnPtr<CDM> cdm) | 70 MediaKeys::MediaKeys(const String& keySystem, PassOwnPtr<ContentDecryptionModule
> cdm) |
69 : m_mediaElement(0) | 71 : m_mediaElement(0) |
70 , m_keySystem(keySystem) | 72 , m_keySystem(keySystem) |
71 , m_cdm(cdm) | 73 , m_cdm(cdm) |
72 { | 74 { |
73 ScriptWrappable::init(this); | 75 ScriptWrappable::init(this); |
74 m_cdm->setClient(this); | |
75 } | 76 } |
76 | 77 |
77 MediaKeys::~MediaKeys() | 78 MediaKeys::~MediaKeys() |
78 { | 79 { |
79 // From <http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encry
pted-media.html#dom-media-keys-constructor>: | 80 // From <http://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/e
ncrypted-media.html#dom-media-keys-constructor>: |
80 // When destroying a MediaKeys object, follow the steps in close(). | 81 // When destroying a MediaKeys object, follow the steps in close(). |
81 for (size_t i = 0; i < m_sessions.size(); ++i) { | 82 for (size_t i = 0; i < m_sessions.size(); ++i) |
82 m_sessions[i]->close(); | 83 m_sessions[i]->close(); |
83 m_sessions[i]->setKeys(0); | |
84 } | |
85 } | 84 } |
86 | 85 |
87 PassRefPtr<MediaKeySession> MediaKeys::createSession(ScriptExecutionContext* con
text, const String& type, Uint8Array* initData, ExceptionCode& ec) | 86 PassRefPtr<MediaKeySession> MediaKeys::createSession(ScriptExecutionContext* con
text, const String& type, Uint8Array* initData, ExceptionCode& ec) |
88 { | 87 { |
89 // From <http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encry
pted-media.html#dom-createsession>: | 88 // From <http://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/e
ncrypted-media.html#dom-createsession>: |
90 // The createSession(type, initData) method must run the following steps: | 89 // The createSession(type, initData) method must run the following steps: |
91 // Note: The contents of initData are container-specific Initialization Data
. | 90 // Note: The contents of initData are container-specific Initialization Data
. |
92 | 91 |
93 // 1. If type is null or an empty string and initData is not null or an empt
y string, throw an | 92 // 1. If type is null or an empty string and initData is not null or an empt
y string, throw an |
94 // INVALID_ACCESS_ERR exception and abort these steps. | 93 // INVALID_ACCESS_ERR exception and abort these steps. |
95 if ((type.isNull() || type.isEmpty()) && (!initData || initData->length()))
{ | 94 if ((type.isEmpty()) && (!initData || initData->length())) { |
96 ec = INVALID_ACCESS_ERR; | 95 ec = INVALID_ACCESS_ERR; |
97 return 0; | 96 return 0; |
98 } | 97 } |
99 | 98 |
100 // 2. If type contains a MIME type that is not supported or is not supported
by the keySystem, throw | 99 // 2. If type contains a MIME type that is not supported or is not supported
by the keySystem, throw |
101 // a NOT_SUPPORTED_ERR exception and abort these steps. | 100 // a NOT_SUPPORTED_ERR exception and abort these steps. |
102 if (!type.isNull() && !type.isEmpty() && !m_cdm->supportsMIMEType(type)) { | 101 ASSERT(!type.isEmpty()); |
| 102 if (type.isEmpty() || !m_cdm->supportsMIMEType(type)) { |
103 ec = NOT_SUPPORTED_ERR; | 103 ec = NOT_SUPPORTED_ERR; |
104 return 0; | 104 return 0; |
105 } | 105 } |
106 | 106 |
107 // 3. Create a new MediaKeySession object. | 107 // 3. Create a new MediaKeySession object. |
| 108 RefPtr<MediaKeySession> session = MediaKeySession::create(context, m_cdm.get
(), this); |
108 // 3.1 Let the keySystem attribute be keySystem. | 109 // 3.1 Let the keySystem attribute be keySystem. |
| 110 ASSERT(!session->keySystem().isEmpty()); |
109 // 3.2 Let the sessionId attribute be a unique Session ID string. It may be
generated by cdm. | 111 // 3.2 Let the sessionId attribute be a unique Session ID string. It may be
generated by cdm. |
110 RefPtr<MediaKeySession> session = MediaKeySession::create(context, this, key
System()); | 112 // This is handled by m_cdm and may happen asynchronously. |
111 | 113 |
112 // 4. Add the new object to an internal list of session objects. | 114 // 4. Add the new object to an internal list of session objects. |
113 m_sessions.append(session); | 115 m_sessions.append(session); |
114 | 116 |
115 // 5. Schedule a task to generate a key request, providing type, initData, a
nd the new object. | 117 // 5. Schedule a task to generate a key request, providing type, initData, a
nd the new object. |
116 session->generateKeyRequest(type, initData); | 118 session->generateKeyRequest(type, initData); |
117 | 119 |
118 // 6. Return the new object to the caller. | 120 // 6. Return the new object to the caller. |
119 return session; | 121 return session; |
120 } | 122 } |
121 | 123 |
122 void MediaKeys::setMediaElement(HTMLMediaElement* element) | 124 void MediaKeys::setMediaElement(HTMLMediaElement* element) |
123 { | 125 { |
| 126 // FIXME: Cause HTMLMediaElement::setMediaKeys() to throw an exception if m_
mediaElement is not 0. |
| 127 // FIXME: Hook up the CDM to the WebMediaPlayer in Chromium. |
| 128 ASSERT(!m_mediaElement); |
124 m_mediaElement = element; | 129 m_mediaElement = element; |
125 } | 130 } |
126 | 131 |
127 MediaPlayer* MediaKeys::cdmMediaPlayer(const CDM*) const | |
128 { | |
129 if (m_mediaElement) | |
130 return m_mediaElement->player(); | |
131 return 0; | |
132 } | 132 } |
133 | |
134 } | |
135 | |
136 #endif | |
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