DrmManagerClientImpl.cpp revision 07d0220bcc9036bcbe36819912559267d9c1c538 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "DrmManagerClientImpl(Native)"
19#include <utils/Log.h>
20
21#include <utils/String8.h>
22#include <utils/Vector.h>
23#include <binder/IServiceManager.h>
24
25#include "DrmManagerClientImpl.h"
26
27using namespace android;
28
29#define INVALID_VALUE -1
30
31Mutex DrmManagerClientImpl::sMutex;
32sp<IDrmManagerService> DrmManagerClientImpl::sDrmManagerService;
33sp<DrmManagerClientImpl::DeathNotifier> DrmManagerClientImpl::sDeathNotifier;
34const String8 DrmManagerClientImpl::EMPTY_STRING("");
35
36DrmManagerClientImpl* DrmManagerClientImpl::create(int* pUniqueId) {
37    if (0 == *pUniqueId) {
38        int uniqueId = getDrmManagerService()->addUniqueId(*pUniqueId);
39        *pUniqueId = uniqueId;
40    } else {
41        getDrmManagerService()->addUniqueId(*pUniqueId);
42    }
43    return new DrmManagerClientImpl();
44}
45
46void DrmManagerClientImpl::remove(int uniqueId) {
47    getDrmManagerService()->removeUniqueId(uniqueId);
48}
49
50const sp<IDrmManagerService>& DrmManagerClientImpl::getDrmManagerService() {
51    Mutex::Autolock lock(sMutex);
52    if (NULL == sDrmManagerService.get()) {
53        sp<IServiceManager> sm = defaultServiceManager();
54        sp<IBinder> binder;
55        do {
56            binder = sm->getService(String16("drm.drmManager"));
57            if (binder != 0) {
58                break;
59            }
60            LOGW("DrmManagerService not published, waiting...");
61            struct timespec reqt;
62            reqt.tv_sec  = 0;
63            reqt.tv_nsec = 500000000; //0.5 sec
64            nanosleep(&reqt, NULL);
65        } while (true);
66        if (NULL == sDeathNotifier.get()) {
67            sDeathNotifier = new DeathNotifier();
68        }
69        binder->linkToDeath(sDeathNotifier);
70        sDrmManagerService = interface_cast<IDrmManagerService>(binder);
71    }
72    return sDrmManagerService;
73}
74
75void DrmManagerClientImpl::addClient(int uniqueId) {
76    getDrmManagerService()->addClient(uniqueId);
77}
78
79void DrmManagerClientImpl::removeClient(int uniqueId) {
80    getDrmManagerService()->removeClient(uniqueId);
81}
82
83status_t DrmManagerClientImpl::setOnInfoListener(
84            int uniqueId, const sp<DrmManagerClient::OnInfoListener>& infoListener) {
85    Mutex::Autolock _l(mLock);
86    mOnInfoListener = infoListener;
87    return getDrmManagerService()->setDrmServiceListener(uniqueId,
88            (NULL != infoListener.get()) ? this : NULL);
89}
90
91status_t DrmManagerClientImpl::installDrmEngine(int uniqueId, const String8& drmEngineFile) {
92    status_t status = DRM_ERROR_UNKNOWN;
93    if (EMPTY_STRING != drmEngineFile) {
94        status = getDrmManagerService()->installDrmEngine(uniqueId, drmEngineFile);
95    }
96    return status;
97}
98
99DrmConstraints* DrmManagerClientImpl::getConstraints(
100        int uniqueId, const String8* path, const int action) {
101    DrmConstraints *drmConstraints = NULL;
102    if ((NULL != path) && (EMPTY_STRING != *path)) {
103        drmConstraints = getDrmManagerService()->getConstraints(uniqueId, path, action);
104    }
105    return drmConstraints;
106}
107
108DrmMetadata* DrmManagerClientImpl::getMetadata(int uniqueId, const String8* path) {
109    DrmMetadata *drmMetadata = NULL;
110    if ((NULL != path) && (EMPTY_STRING != *path)) {
111        drmMetadata = getDrmManagerService()->getMetadata(uniqueId, path);
112    }
113    return drmMetadata;
114}
115
116bool DrmManagerClientImpl::canHandle(int uniqueId, const String8& path, const String8& mimeType) {
117    bool retCode = false;
118    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
119        retCode = getDrmManagerService()->canHandle(uniqueId, path, mimeType);
120    }
121    return retCode;
122}
123
124DrmInfoStatus* DrmManagerClientImpl::processDrmInfo(int uniqueId, const DrmInfo* drmInfo) {
125    DrmInfoStatus *drmInfoStatus = NULL;
126    if (NULL != drmInfo) {
127        drmInfoStatus = getDrmManagerService()->processDrmInfo(uniqueId, drmInfo);
128    }
129    return drmInfoStatus;
130}
131
132DrmInfo* DrmManagerClientImpl::acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) {
133    DrmInfo* drmInfo = NULL;
134    if (NULL != drmInfoRequest) {
135        drmInfo = getDrmManagerService()->acquireDrmInfo(uniqueId, drmInfoRequest);
136    }
137    return drmInfo;
138}
139
140status_t DrmManagerClientImpl::saveRights(int uniqueId, const DrmRights& drmRights,
141            const String8& rightsPath, const String8& contentPath) {
142    status_t status = DRM_ERROR_UNKNOWN;
143    if (EMPTY_STRING != contentPath) {
144        status = getDrmManagerService()->saveRights(uniqueId, drmRights, rightsPath, contentPath);
145    }
146    return status;
147}
148
149String8 DrmManagerClientImpl::getOriginalMimeType(int uniqueId, const String8& path) {
150    String8 mimeType = EMPTY_STRING;
151    if (EMPTY_STRING != path) {
152        mimeType = getDrmManagerService()->getOriginalMimeType(uniqueId, path);
153    }
154    return mimeType;
155}
156
157int DrmManagerClientImpl::getDrmObjectType(
158            int uniqueId, const String8& path, const String8& mimeType) {
159    int drmOjectType = DrmObjectType::UNKNOWN;
160    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
161         drmOjectType = getDrmManagerService()->getDrmObjectType(uniqueId, path, mimeType);
162    }
163    return drmOjectType;
164}
165
166int DrmManagerClientImpl::checkRightsStatus(
167            int uniqueId, const String8& path, int action) {
168    int rightsStatus = RightsStatus::RIGHTS_INVALID;
169    if (EMPTY_STRING != path) {
170        rightsStatus = getDrmManagerService()->checkRightsStatus(uniqueId, path, action);
171    }
172    return rightsStatus;
173}
174
175status_t DrmManagerClientImpl::consumeRights(
176            int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) {
177    status_t status = DRM_ERROR_UNKNOWN;
178    if (NULL != decryptHandle) {
179        status = getDrmManagerService()->consumeRights(uniqueId, decryptHandle, action, reserve);
180    }
181    return status;
182}
183
184status_t DrmManagerClientImpl::setPlaybackStatus(
185            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position) {
186    status_t status = DRM_ERROR_UNKNOWN;
187    if (NULL != decryptHandle) {
188        status = getDrmManagerService()->setPlaybackStatus(
189                uniqueId, decryptHandle, playbackStatus, position);
190    }
191    return status;
192}
193
194bool DrmManagerClientImpl::validateAction(
195            int uniqueId, const String8& path, int action, const ActionDescription& description) {
196    bool retCode = false;
197    if (EMPTY_STRING != path) {
198        retCode = getDrmManagerService()->validateAction(uniqueId, path, action, description);
199    }
200    return retCode;
201}
202
203status_t DrmManagerClientImpl::removeRights(int uniqueId, const String8& path) {
204    status_t status = DRM_ERROR_UNKNOWN;
205    if (EMPTY_STRING != path) {
206        status = getDrmManagerService()->removeRights(uniqueId, path);
207    }
208    return status;
209}
210
211status_t DrmManagerClientImpl::removeAllRights(int uniqueId) {
212    return getDrmManagerService()->removeAllRights(uniqueId);
213}
214
215int DrmManagerClientImpl::openConvertSession(int uniqueId, const String8& mimeType) {
216    int retCode = INVALID_VALUE;
217    if (EMPTY_STRING != mimeType) {
218        retCode = getDrmManagerService()->openConvertSession(uniqueId, mimeType);
219    }
220    return retCode;
221}
222
223DrmConvertedStatus* DrmManagerClientImpl::convertData(
224            int uniqueId, int convertId, const DrmBuffer* inputData) {
225    DrmConvertedStatus* drmConvertedStatus = NULL;
226    if (NULL != inputData) {
227         drmConvertedStatus = getDrmManagerService()->convertData(uniqueId, convertId, inputData);
228    }
229    return drmConvertedStatus;
230}
231
232DrmConvertedStatus* DrmManagerClientImpl::closeConvertSession(int uniqueId, int convertId) {
233    return getDrmManagerService()->closeConvertSession(uniqueId, convertId);
234}
235
236status_t DrmManagerClientImpl::getAllSupportInfo(
237            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
238    status_t status = DRM_ERROR_UNKNOWN;
239    if ((NULL != drmSupportInfoArray) && (NULL != length)) {
240        status = getDrmManagerService()->getAllSupportInfo(uniqueId, length, drmSupportInfoArray);
241    }
242    return status;
243}
244
245DecryptHandle* DrmManagerClientImpl::openDecryptSession(
246            int uniqueId, int fd, off64_t offset, off64_t length) {
247    return getDrmManagerService()->openDecryptSession(uniqueId, fd, offset, length);
248}
249
250DecryptHandle* DrmManagerClientImpl::openDecryptSession(int uniqueId, const char* uri) {
251    DecryptHandle* handle = NULL;
252    if (NULL != uri) {
253        handle = getDrmManagerService()->openDecryptSession(uniqueId, uri);
254    }
255    return handle;
256}
257
258status_t DrmManagerClientImpl::closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) {
259    status_t status = DRM_ERROR_UNKNOWN;
260    if (NULL != decryptHandle) {
261        status = getDrmManagerService()->closeDecryptSession( uniqueId, decryptHandle);
262    }
263    return status;
264}
265
266status_t DrmManagerClientImpl::initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
267            int decryptUnitId, const DrmBuffer* headerInfo) {
268    status_t status = DRM_ERROR_UNKNOWN;
269    if ((NULL != decryptHandle) && (NULL != headerInfo)) {
270        status = getDrmManagerService()->initializeDecryptUnit(
271                uniqueId, decryptHandle, decryptUnitId, headerInfo);
272    }
273    return status;
274}
275
276status_t DrmManagerClientImpl::decrypt(int uniqueId, DecryptHandle* decryptHandle,
277            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) {
278    status_t status = DRM_ERROR_UNKNOWN;
279    if ((NULL != decryptHandle) && (NULL != encBuffer)
280        && (NULL != decBuffer) && (NULL != *decBuffer)) {
281        status = getDrmManagerService()->decrypt(
282                uniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer, IV);
283    }
284    return status;
285}
286
287status_t DrmManagerClientImpl::finalizeDecryptUnit(
288            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
289    status_t status = DRM_ERROR_UNKNOWN;
290    if (NULL != decryptHandle) {
291        status
292            = getDrmManagerService()->finalizeDecryptUnit(uniqueId, decryptHandle, decryptUnitId);
293    }
294    return status;
295}
296
297ssize_t DrmManagerClientImpl::pread(int uniqueId, DecryptHandle* decryptHandle,
298            void* buffer, ssize_t numBytes, off64_t offset) {
299    ssize_t retCode = INVALID_VALUE;
300    if ((NULL != decryptHandle) && (NULL != buffer) && (0 < numBytes)) {
301        retCode = getDrmManagerService()->pread(uniqueId, decryptHandle, buffer, numBytes, offset);
302    }
303    return retCode;
304}
305
306status_t DrmManagerClientImpl::notify(const DrmInfoEvent& event) {
307    if (NULL != mOnInfoListener.get()) {
308        Mutex::Autolock _l(mLock);
309        sp<DrmManagerClient::OnInfoListener> listener = mOnInfoListener;
310        listener->onInfo(event);
311    }
312    return DRM_NO_ERROR;
313}
314
315DrmManagerClientImpl::DeathNotifier::~DeathNotifier() {
316    Mutex::Autolock lock(sMutex);
317    if (NULL != sDrmManagerService.get()) {
318        sDrmManagerService->asBinder()->unlinkToDeath(this);
319    }
320}
321
322void DrmManagerClientImpl::DeathNotifier::binderDied(const wp<IBinder>& who) {
323    Mutex::Autolock lock(sMutex);
324    DrmManagerClientImpl::sDrmManagerService.clear();
325    LOGW("DrmManager server died!");
326}
327
328