DrmManagerClientImpl.cpp revision 8d2577b9ac2f95f218db59a78447efd3c6a742dd 
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,
85            const sp<DrmManagerClient::OnInfoListener>& infoListener) {
86    Mutex::Autolock _l(mLock);
87    mOnInfoListener = infoListener;
88    return getDrmManagerService()->setDrmServiceListener(uniqueId,
89            (NULL != infoListener.get()) ? this : NULL);
90}
91
92status_t DrmManagerClientImpl::installDrmEngine(
93        int uniqueId, const String8& drmEngineFile) {
94    status_t status = DRM_ERROR_UNKNOWN;
95    if (EMPTY_STRING != drmEngineFile) {
96        status = getDrmManagerService()->installDrmEngine(uniqueId, drmEngineFile);
97    }
98    return status;
99}
100
101DrmConstraints* DrmManagerClientImpl::getConstraints(
102        int uniqueId, const String8* path, const int action) {
103    DrmConstraints *drmConstraints = NULL;
104    if ((NULL != path) && (EMPTY_STRING != *path)) {
105        drmConstraints =
106            getDrmManagerService()->getConstraints(uniqueId, path, action);
107    }
108    return drmConstraints;
109}
110
111DrmMetadata* DrmManagerClientImpl::getMetadata(int uniqueId, const String8* path) {
112    DrmMetadata *drmMetadata = NULL;
113    if ((NULL != path) && (EMPTY_STRING != *path)) {
114        drmMetadata = getDrmManagerService()->getMetadata(uniqueId, path);
115    }
116    return drmMetadata;
117}
118
119bool DrmManagerClientImpl::canHandle(
120        int uniqueId, const String8& path, const String8& mimeType) {
121    bool retCode = false;
122    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
123        retCode = getDrmManagerService()->canHandle(uniqueId, path, mimeType);
124    }
125    return retCode;
126}
127
128DrmInfoStatus* DrmManagerClientImpl::processDrmInfo(
129        int uniqueId, const DrmInfo* drmInfo) {
130    DrmInfoStatus *drmInfoStatus = NULL;
131    if (NULL != drmInfo) {
132        drmInfoStatus = getDrmManagerService()->processDrmInfo(uniqueId, drmInfo);
133    }
134    return drmInfoStatus;
135}
136
137DrmInfo* DrmManagerClientImpl::acquireDrmInfo(
138        int uniqueId, const DrmInfoRequest* drmInfoRequest) {
139    DrmInfo* drmInfo = NULL;
140    if (NULL != drmInfoRequest) {
141        drmInfo = getDrmManagerService()->acquireDrmInfo(uniqueId, drmInfoRequest);
142    }
143    return drmInfo;
144}
145
146status_t DrmManagerClientImpl::saveRights(int uniqueId, const DrmRights& drmRights,
147            const String8& rightsPath, const String8& contentPath) {
148    status_t status = DRM_ERROR_UNKNOWN;
149    return getDrmManagerService()->saveRights(
150                uniqueId, drmRights, rightsPath, contentPath);
151}
152
153String8 DrmManagerClientImpl::getOriginalMimeType(
154        int uniqueId, const String8& path) {
155    String8 mimeType = EMPTY_STRING;
156    if (EMPTY_STRING != path) {
157        mimeType = getDrmManagerService()->getOriginalMimeType(uniqueId, path);
158    }
159    return mimeType;
160}
161
162int DrmManagerClientImpl::getDrmObjectType(
163            int uniqueId, const String8& path, const String8& mimeType) {
164    int drmOjectType = DrmObjectType::UNKNOWN;
165    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
166         drmOjectType =
167             getDrmManagerService()->getDrmObjectType(uniqueId, path, mimeType);
168    }
169    return drmOjectType;
170}
171
172int DrmManagerClientImpl::checkRightsStatus(
173            int uniqueId, const String8& path, int action) {
174    int rightsStatus = RightsStatus::RIGHTS_INVALID;
175    if (EMPTY_STRING != path) {
176        rightsStatus =
177            getDrmManagerService()->checkRightsStatus(uniqueId, path, action);
178    }
179    return rightsStatus;
180}
181
182status_t DrmManagerClientImpl::consumeRights(
183            int uniqueId, sp<DecryptHandle> &decryptHandle,
184            int action, bool reserve) {
185    status_t status = DRM_ERROR_UNKNOWN;
186    if (NULL != decryptHandle.get()) {
187        status = getDrmManagerService()->consumeRights(
188                uniqueId, decryptHandle.get(), action, reserve);
189    }
190    return status;
191}
192
193status_t DrmManagerClientImpl::setPlaybackStatus(
194            int uniqueId, sp<DecryptHandle> &decryptHandle,
195            int playbackStatus, int64_t position) {
196    status_t status = DRM_ERROR_UNKNOWN;
197    if (NULL != decryptHandle.get()) {
198        status = getDrmManagerService()->setPlaybackStatus(
199                uniqueId, decryptHandle.get(), playbackStatus, position);
200    }
201    return status;
202}
203
204bool DrmManagerClientImpl::validateAction(
205            int uniqueId, const String8& path,
206            int action, const ActionDescription& description) {
207    bool retCode = false;
208    if (EMPTY_STRING != path) {
209        retCode = getDrmManagerService()->validateAction(
210                uniqueId, path, action, description);
211    }
212    return retCode;
213}
214
215status_t DrmManagerClientImpl::removeRights(int uniqueId, const String8& path) {
216    status_t status = DRM_ERROR_UNKNOWN;
217    if (EMPTY_STRING != path) {
218        status = getDrmManagerService()->removeRights(uniqueId, path);
219    }
220    return status;
221}
222
223status_t DrmManagerClientImpl::removeAllRights(int uniqueId) {
224    return getDrmManagerService()->removeAllRights(uniqueId);
225}
226
227int DrmManagerClientImpl::openConvertSession(
228        int uniqueId, const String8& mimeType) {
229    int retCode = INVALID_VALUE;
230    if (EMPTY_STRING != mimeType) {
231        retCode = getDrmManagerService()->openConvertSession(uniqueId, mimeType);
232    }
233    return retCode;
234}
235
236DrmConvertedStatus* DrmManagerClientImpl::convertData(
237            int uniqueId, int convertId, const DrmBuffer* inputData) {
238    DrmConvertedStatus* drmConvertedStatus = NULL;
239    if (NULL != inputData) {
240         drmConvertedStatus =
241             getDrmManagerService()->convertData(uniqueId, convertId, inputData);
242    }
243    return drmConvertedStatus;
244}
245
246DrmConvertedStatus* DrmManagerClientImpl::closeConvertSession(
247        int uniqueId, int convertId) {
248    return getDrmManagerService()->closeConvertSession(uniqueId, convertId);
249}
250
251status_t DrmManagerClientImpl::getAllSupportInfo(
252            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
253    status_t status = DRM_ERROR_UNKNOWN;
254    if ((NULL != drmSupportInfoArray) && (NULL != length)) {
255        status = getDrmManagerService()->getAllSupportInfo(
256                uniqueId, length, drmSupportInfoArray);
257    }
258    return status;
259}
260
261sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
262            int uniqueId, int fd, off64_t offset, off64_t length) {
263    return getDrmManagerService()->openDecryptSession(uniqueId, fd, offset, length);
264}
265
266sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
267        int uniqueId, const char* uri) {
268    DecryptHandle* handle = NULL;
269    if (NULL != uri) {
270        handle = getDrmManagerService()->openDecryptSession(uniqueId, uri);
271    }
272    return handle;
273}
274
275status_t DrmManagerClientImpl::closeDecryptSession(
276        int uniqueId, sp<DecryptHandle> &decryptHandle) {
277    status_t status = DRM_ERROR_UNKNOWN;
278    if (NULL != decryptHandle.get()) {
279        status = getDrmManagerService()->closeDecryptSession(
280                uniqueId, decryptHandle.get());
281    }
282    return status;
283}
284
285status_t DrmManagerClientImpl::initializeDecryptUnit(
286        int uniqueId, sp<DecryptHandle> &decryptHandle,
287        int decryptUnitId, const DrmBuffer* headerInfo) {
288    status_t status = DRM_ERROR_UNKNOWN;
289    if ((NULL != decryptHandle.get()) && (NULL != headerInfo)) {
290        status = getDrmManagerService()->initializeDecryptUnit(
291                uniqueId, decryptHandle.get(), decryptUnitId, headerInfo);
292    }
293    return status;
294}
295
296status_t DrmManagerClientImpl::decrypt(
297        int uniqueId, sp<DecryptHandle> &decryptHandle,
298        int decryptUnitId, const DrmBuffer* encBuffer,
299        DrmBuffer** decBuffer, DrmBuffer* IV) {
300    status_t status = DRM_ERROR_UNKNOWN;
301    if ((NULL != decryptHandle.get()) && (NULL != encBuffer)
302        && (NULL != decBuffer) && (NULL != *decBuffer)) {
303        status = getDrmManagerService()->decrypt(
304                uniqueId, decryptHandle.get(), decryptUnitId,
305                encBuffer, decBuffer, IV);
306    }
307    return status;
308}
309
310status_t DrmManagerClientImpl::finalizeDecryptUnit(
311            int uniqueId, sp<DecryptHandle> &decryptHandle, int decryptUnitId) {
312    status_t status = DRM_ERROR_UNKNOWN;
313    if (NULL != decryptHandle.get()) {
314        status = getDrmManagerService()->finalizeDecryptUnit(
315                    uniqueId, decryptHandle.get(), decryptUnitId);
316    }
317    return status;
318}
319
320ssize_t DrmManagerClientImpl::pread(int uniqueId, sp<DecryptHandle> &decryptHandle,
321            void* buffer, ssize_t numBytes, off64_t offset) {
322    ssize_t retCode = INVALID_VALUE;
323    if ((NULL != decryptHandle.get()) && (NULL != buffer) && (0 < numBytes)) {
324        retCode = getDrmManagerService()->pread(
325                uniqueId, decryptHandle.get(), buffer, numBytes, offset);
326    }
327    return retCode;
328}
329
330status_t DrmManagerClientImpl::notify(const DrmInfoEvent& event) {
331    if (NULL != mOnInfoListener.get()) {
332        Mutex::Autolock _l(mLock);
333        sp<DrmManagerClient::OnInfoListener> listener = mOnInfoListener;
334        listener->onInfo(event);
335    }
336    return DRM_NO_ERROR;
337}
338
339DrmManagerClientImpl::DeathNotifier::~DeathNotifier() {
340    Mutex::Autolock lock(sMutex);
341    if (NULL != sDrmManagerService.get()) {
342        sDrmManagerService->asBinder()->unlinkToDeath(this);
343    }
344}
345
346void DrmManagerClientImpl::DeathNotifier::binderDied(const wp<IBinder>& who) {
347    Mutex::Autolock lock(sMutex);
348    DrmManagerClientImpl::sDrmManagerService.clear();
349    LOGW("DrmManager server died!");
350}
351
352