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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 #include "bindings/v8/ExceptionState.h" | |
30 #include "core/dom/EventNames.h" | 29 #include "core/dom/EventNames.h" |
31 #include "core/html/HTMLMediaElement.h" | 30 #include "core/html/HTMLMediaElement.h" |
32 #include "core/platform/UUID.h" | 31 #include "core/platform/UUID.h" |
33 #include "core/platform/graphics/ContentDecryptionModule.h" | 32 #include "core/platform/graphics/ContentDecryptionModule.h" |
34 #include "modules/encryptedmedia/MediaKeyMessageEvent.h" | 33 #include "modules/encryptedmedia/MediaKeyMessageEvent.h" |
35 #include "modules/encryptedmedia/MediaKeySession.h" | 34 #include "modules/encryptedmedia/MediaKeySession.h" |
36 #include "wtf/HashSet.h" | 35 #include "wtf/HashSet.h" |
37 | 36 |
38 namespace WebCore { | 37 namespace WebCore { |
39 | 38 |
40 PassRefPtr<MediaKeys> MediaKeys::create(const String& keySystem, ExceptionState&
es) | 39 PassRefPtr<MediaKeys> MediaKeys::create(const String& keySystem, ExceptionCode&
ec) |
41 { | 40 { |
42 // From <http://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/e
ncrypted-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>: |
43 // The MediaKeys(keySystem) constructor must run the following steps: | 42 // The MediaKeys(keySystem) constructor must run the following steps: |
44 | 43 |
45 // 1. If keySystem is null or an empty string, throw an InvalidAccessError e
xception and abort these steps. | 44 // 1. If keySystem is null or an empty string, throw an InvalidAccessError e
xception and abort these steps. |
46 if (keySystem.isEmpty()) { | 45 if (keySystem.isEmpty()) { |
47 es.throwDOMException(InvalidAccessError); | 46 ec = InvalidAccessError; |
48 return 0; | 47 return 0; |
49 } | 48 } |
50 | 49 |
51 // 2. If keySystem is not one of the user agent's supported Key Systems, thr
ow a NotSupportedError and abort these steps. | 50 // 2. If keySystem is not one of the user agent's supported Key Systems, thr
ow a NotSupportedError and abort these steps. |
52 if (!ContentDecryptionModule::supportsKeySystem(keySystem)) { | 51 if (!ContentDecryptionModule::supportsKeySystem(keySystem)) { |
53 es.throwDOMException(NotSupportedError); | 52 ec = NotSupportedError; |
54 return 0; | 53 return 0; |
55 } | 54 } |
56 | 55 |
57 // 3. Let cdm be the content decryption module corresponding to keySystem. | 56 // 3. Let cdm be the content decryption module corresponding to keySystem. |
58 // 4. Load cdm if necessary. | 57 // 4. Load cdm if necessary. |
59 OwnPtr<ContentDecryptionModule> cdm = ContentDecryptionModule::create(keySys
tem); | 58 OwnPtr<ContentDecryptionModule> cdm = ContentDecryptionModule::create(keySys
tem); |
60 if (!cdm) { | 59 if (!cdm) { |
61 es.throwDOMException(NotSupportedError); | 60 ec = NotSupportedError; |
62 return 0; | 61 return 0; |
63 } | 62 } |
64 | 63 |
65 // 5. Create a new MediaKeys object. | 64 // 5. Create a new MediaKeys object. |
66 // 5.1 Let the keySystem attribute be keySystem. | 65 // 5.1 Let the keySystem attribute be keySystem. |
67 // 6. Return the new object to the caller. | 66 // 6. Return the new object to the caller. |
68 return adoptRef(new MediaKeys(keySystem, cdm.release())); | 67 return adoptRef(new MediaKeys(keySystem, cdm.release())); |
69 } | 68 } |
70 | 69 |
71 MediaKeys::MediaKeys(const String& keySystem, PassOwnPtr<ContentDecryptionModule
> cdm) | 70 MediaKeys::MediaKeys(const String& keySystem, PassOwnPtr<ContentDecryptionModule
> cdm) |
72 : m_mediaElement(0) | 71 : m_mediaElement(0) |
73 , m_keySystem(keySystem) | 72 , m_keySystem(keySystem) |
74 , m_cdm(cdm) | 73 , m_cdm(cdm) |
75 { | 74 { |
76 ScriptWrappable::init(this); | 75 ScriptWrappable::init(this); |
77 } | 76 } |
78 | 77 |
79 MediaKeys::~MediaKeys() | 78 MediaKeys::~MediaKeys() |
80 { | 79 { |
81 // From <http://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/e
ncrypted-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>: |
82 // When destroying a MediaKeys object, follow the steps in close(). | 81 // When destroying a MediaKeys object, follow the steps in close(). |
83 for (size_t i = 0; i < m_sessions.size(); ++i) | 82 for (size_t i = 0; i < m_sessions.size(); ++i) |
84 m_sessions[i]->close(); | 83 m_sessions[i]->close(); |
85 } | 84 } |
86 | 85 |
87 PassRefPtr<MediaKeySession> MediaKeys::createSession(ScriptExecutionContext* con
text, const String& type, Uint8Array* initData, ExceptionState& es) | 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/default/encrypted-media/e
ncrypted-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 // InvalidAccessError exception and abort these steps. | 93 // InvalidAccessError exception and abort these steps. |
95 if ((type.isEmpty()) && (!initData || initData->length())) { | 94 if ((type.isEmpty()) && (!initData || initData->length())) { |
96 es.throwDOMException(InvalidAccessError); | 95 ec = InvalidAccessError; |
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 NotSupportedError exception and abort these steps. | 100 // a NotSupportedError exception and abort these steps. |
102 ASSERT(!type.isEmpty()); | 101 ASSERT(!type.isEmpty()); |
103 if (type.isEmpty() || !m_cdm->supportsMIMEType(type)) { | 102 if (type.isEmpty() || !m_cdm->supportsMIMEType(type)) { |
104 es.throwDOMException(NotSupportedError); | 103 ec = NotSupportedError; |
105 return 0; | 104 return 0; |
106 } | 105 } |
107 | 106 |
108 // 3. Create a new MediaKeySession object. | 107 // 3. Create a new MediaKeySession object. |
109 RefPtr<MediaKeySession> session = MediaKeySession::create(context, m_cdm.get
(), this); | 108 RefPtr<MediaKeySession> session = MediaKeySession::create(context, m_cdm.get
(), this); |
110 // 3.1 Let the keySystem attribute be keySystem. | 109 // 3.1 Let the keySystem attribute be keySystem. |
111 ASSERT(!session->keySystem().isEmpty()); | 110 ASSERT(!session->keySystem().isEmpty()); |
112 // 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. |
113 // This is handled by m_cdm and may happen asynchronously. | 112 // This is handled by m_cdm and may happen asynchronously. |
114 | 113 |
115 // 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. |
116 m_sessions.append(session); | 115 m_sessions.append(session); |
117 | 116 |
118 // 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. |
119 session->generateKeyRequest(type, initData); | 118 session->generateKeyRequest(type, initData); |
120 | 119 |
121 // 6. Return the new object to the caller. | 120 // 6. Return the new object to the caller. |
122 return session; | 121 return session; |
123 } | 122 } |
124 | 123 |
125 void MediaKeys::setMediaElement(HTMLMediaElement* element) | 124 void MediaKeys::setMediaElement(HTMLMediaElement* element) |
126 { | 125 { |
127 // FIXME: Cause HTMLMediaElement::setMediaKeys() to throw an exception if m_
mediaElement is not 0. | 126 // FIXME: Cause HTMLMediaElement::setMediaKeys() to throw an exception if m_
mediaElement is not 0. |
128 // FIXME: Hook up the CDM to the WebMediaPlayer in Chromium. | 127 // FIXME: Hook up the CDM to the WebMediaPlayer in Chromium. |
129 ASSERT(!m_mediaElement); | 128 ASSERT(!m_mediaElement); |
130 m_mediaElement = element; | 129 m_mediaElement = element; |
131 } | 130 } |
132 | 131 |
133 } | 132 } |
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