DrmManagerClientImpl.cpp revision 8f00151cbe693d52f3e233757c57fab3b6396d21 
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(
37        int* pUniqueId, bool isNative) {
38    *pUniqueId = getDrmManagerService()->addUniqueId(isNative);
39
40    return new DrmManagerClientImpl();
41}
42
43void DrmManagerClientImpl::remove(int uniqueId) {
44    getDrmManagerService()->removeUniqueId(uniqueId);
45}
46
47const sp<IDrmManagerService>& DrmManagerClientImpl::getDrmManagerService() {
48    Mutex::Autolock lock(sMutex);
49    if (NULL == sDrmManagerService.get()) {
50        sp<IServiceManager> sm = defaultServiceManager();
51        sp<IBinder> binder;
52        do {
53            binder = sm->getService(String16("drm.drmManager"));
54            if (binder != 0) {
55                break;
56            }
57            LOGW("DrmManagerService not published, waiting...");
58            struct timespec reqt;
59            reqt.tv_sec  = 0;
60            reqt.tv_nsec = 500000000; //0.5 sec
61            nanosleep(&reqt, NULL);
62        } while (true);
63        if (NULL == sDeathNotifier.get()) {
64            sDeathNotifier = new DeathNotifier();
65        }
66        binder->linkToDeath(sDeathNotifier);
67        sDrmManagerService = interface_cast<IDrmManagerService>(binder);
68    }
69    return sDrmManagerService;
70}
71
72void DrmManagerClientImpl::addClient(int uniqueId) {
73    getDrmManagerService()->addClient(uniqueId);
74}
75
76void DrmManagerClientImpl::removeClient(int uniqueId) {
77    getDrmManagerService()->removeClient(uniqueId);
78}
79
80status_t DrmManagerClientImpl::setOnInfoListener(
81            int uniqueId,
82            const sp<DrmManagerClient::OnInfoListener>& infoListener) {
83    Mutex::Autolock _l(mLock);
84    mOnInfoListener = infoListener;
85    return getDrmManagerService()->setDrmServiceListener(uniqueId,
86            (NULL != infoListener.get()) ? this : NULL);
87}
88
89status_t DrmManagerClientImpl::installDrmEngine(
90        int uniqueId, const String8& drmEngineFile) {
91    status_t status = DRM_ERROR_UNKNOWN;
92    if (EMPTY_STRING != drmEngineFile) {
93        status = getDrmManagerService()->installDrmEngine(uniqueId, drmEngineFile);
94    }
95    return status;
96}
97
98DrmConstraints* DrmManagerClientImpl::getConstraints(
99        int uniqueId, const String8* path, const int action) {
100    DrmConstraints *drmConstraints = NULL;
101    if ((NULL != path) && (EMPTY_STRING != *path)) {
102        drmConstraints =
103            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(
117        int uniqueId, const String8& path, const String8& mimeType) {
118    bool retCode = false;
119    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
120        retCode = getDrmManagerService()->canHandle(uniqueId, path, mimeType);
121    }
122    return retCode;
123}
124
125DrmInfoStatus* DrmManagerClientImpl::processDrmInfo(
126        int uniqueId, const DrmInfo* drmInfo) {
127    DrmInfoStatus *drmInfoStatus = NULL;
128    if (NULL != drmInfo) {
129        drmInfoStatus = getDrmManagerService()->processDrmInfo(uniqueId, drmInfo);
130    }
131    return drmInfoStatus;
132}
133
134DrmInfo* DrmManagerClientImpl::acquireDrmInfo(
135        int uniqueId, const DrmInfoRequest* drmInfoRequest) {
136    DrmInfo* drmInfo = NULL;
137    if (NULL != drmInfoRequest) {
138        drmInfo = getDrmManagerService()->acquireDrmInfo(uniqueId, drmInfoRequest);
139    }
140    return drmInfo;
141}
142
143status_t DrmManagerClientImpl::saveRights(int uniqueId, const DrmRights& drmRights,
144            const String8& rightsPath, const String8& contentPath) {
145    return getDrmManagerService()->saveRights(
146                uniqueId, drmRights, rightsPath, contentPath);
147}
148
149String8 DrmManagerClientImpl::getOriginalMimeType(
150        int uniqueId, const String8& path) {
151    String8 mimeType = EMPTY_STRING;
152    if (EMPTY_STRING != path) {
153        mimeType = getDrmManagerService()->getOriginalMimeType(uniqueId, path);
154    }
155    return mimeType;
156}
157
158int DrmManagerClientImpl::getDrmObjectType(
159            int uniqueId, const String8& path, const String8& mimeType) {
160    int drmOjectType = DrmObjectType::UNKNOWN;
161    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
162         drmOjectType =
163             getDrmManagerService()->getDrmObjectType(uniqueId, path, mimeType);
164    }
165    return drmOjectType;
166}
167
168int DrmManagerClientImpl::checkRightsStatus(
169            int uniqueId, const String8& path, int action) {
170    int rightsStatus = RightsStatus::RIGHTS_INVALID;
171    if (EMPTY_STRING != path) {
172        rightsStatus =
173            getDrmManagerService()->checkRightsStatus(uniqueId, path, action);
174    }
175    return rightsStatus;
176}
177
178status_t DrmManagerClientImpl::consumeRights(
179            int uniqueId, sp<DecryptHandle> &decryptHandle,
180            int action, bool reserve) {
181    status_t status = DRM_ERROR_UNKNOWN;
182    if (NULL != decryptHandle.get()) {
183        status = getDrmManagerService()->consumeRights(
184                uniqueId, decryptHandle.get(), action, reserve);
185    }
186    return status;
187}
188
189status_t DrmManagerClientImpl::setPlaybackStatus(
190            int uniqueId, sp<DecryptHandle> &decryptHandle,
191            int playbackStatus, int64_t position) {
192    status_t status = DRM_ERROR_UNKNOWN;
193    if (NULL != decryptHandle.get()) {
194        status = getDrmManagerService()->setPlaybackStatus(
195                uniqueId, decryptHandle.get(), playbackStatus, position);
196    }
197    return status;
198}
199
200bool DrmManagerClientImpl::validateAction(
201            int uniqueId, const String8& path,
202            int action, const ActionDescription& description) {
203    bool retCode = false;
204    if (EMPTY_STRING != path) {
205        retCode = getDrmManagerService()->validateAction(
206                uniqueId, path, action, description);
207    }
208    return retCode;
209}
210
211status_t DrmManagerClientImpl::removeRights(int uniqueId, const String8& path) {
212    status_t status = DRM_ERROR_UNKNOWN;
213    if (EMPTY_STRING != path) {
214        status = getDrmManagerService()->removeRights(uniqueId, path);
215    }
216    return status;
217}
218
219status_t DrmManagerClientImpl::removeAllRights(int uniqueId) {
220    return getDrmManagerService()->removeAllRights(uniqueId);
221}
222
223int DrmManagerClientImpl::openConvertSession(
224        int uniqueId, const String8& mimeType) {
225    int retCode = INVALID_VALUE;
226    if (EMPTY_STRING != mimeType) {
227        retCode = getDrmManagerService()->openConvertSession(uniqueId, mimeType);
228    }
229    return retCode;
230}
231
232DrmConvertedStatus* DrmManagerClientImpl::convertData(
233            int uniqueId, int convertId, const DrmBuffer* inputData) {
234    DrmConvertedStatus* drmConvertedStatus = NULL;
235    if (NULL != inputData) {
236         drmConvertedStatus =
237             getDrmManagerService()->convertData(uniqueId, convertId, inputData);
238    }
239    return drmConvertedStatus;
240}
241
242DrmConvertedStatus* DrmManagerClientImpl::closeConvertSession(
243        int uniqueId, int convertId) {
244    return getDrmManagerService()->closeConvertSession(uniqueId, convertId);
245}
246
247status_t DrmManagerClientImpl::getAllSupportInfo(
248            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
249    status_t status = DRM_ERROR_UNKNOWN;
250    if ((NULL != drmSupportInfoArray) && (NULL != length)) {
251        status = getDrmManagerService()->getAllSupportInfo(
252                uniqueId, length, drmSupportInfoArray);
253    }
254    return status;
255}
256
257sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
258            int uniqueId, int fd, off64_t offset, off64_t length) {
259    return getDrmManagerService()->openDecryptSession(uniqueId, fd, offset, length);
260}
261
262sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
263        int uniqueId, const char* uri) {
264    DecryptHandle* handle = NULL;
265    if (NULL != uri) {
266        handle = getDrmManagerService()->openDecryptSession(uniqueId, uri);
267    }
268    return handle;
269}
270
271status_t DrmManagerClientImpl::closeDecryptSession(
272        int uniqueId, sp<DecryptHandle> &decryptHandle) {
273    status_t status = DRM_ERROR_UNKNOWN;
274    if (NULL != decryptHandle.get()) {
275        status = getDrmManagerService()->closeDecryptSession(
276                uniqueId, decryptHandle.get());
277    }
278    return status;
279}
280
281status_t DrmManagerClientImpl::initializeDecryptUnit(
282        int uniqueId, sp<DecryptHandle> &decryptHandle,
283        int decryptUnitId, const DrmBuffer* headerInfo) {
284    status_t status = DRM_ERROR_UNKNOWN;
285    if ((NULL != decryptHandle.get()) && (NULL != headerInfo)) {
286        status = getDrmManagerService()->initializeDecryptUnit(
287                uniqueId, decryptHandle.get(), decryptUnitId, headerInfo);
288    }
289    return status;
290}
291
292status_t DrmManagerClientImpl::decrypt(
293        int uniqueId, sp<DecryptHandle> &decryptHandle,
294        int decryptUnitId, const DrmBuffer* encBuffer,
295        DrmBuffer** decBuffer, DrmBuffer* IV) {
296    status_t status = DRM_ERROR_UNKNOWN;
297    if ((NULL != decryptHandle.get()) && (NULL != encBuffer)
298        && (NULL != decBuffer) && (NULL != *decBuffer)) {
299        status = getDrmManagerService()->decrypt(
300                uniqueId, decryptHandle.get(), decryptUnitId,
301                encBuffer, decBuffer, IV);
302    }
303    return status;
304}
305
306status_t DrmManagerClientImpl::finalizeDecryptUnit(
307            int uniqueId, sp<DecryptHandle> &decryptHandle, int decryptUnitId) {
308    status_t status = DRM_ERROR_UNKNOWN;
309    if (NULL != decryptHandle.get()) {
310        status = getDrmManagerService()->finalizeDecryptUnit(
311                    uniqueId, decryptHandle.get(), decryptUnitId);
312    }
313    return status;
314}
315
316ssize_t DrmManagerClientImpl::pread(int uniqueId, sp<DecryptHandle> &decryptHandle,
317            void* buffer, ssize_t numBytes, off64_t offset) {
318    ssize_t retCode = INVALID_VALUE;
319    if ((NULL != decryptHandle.get()) && (NULL != buffer) && (0 < numBytes)) {
320        retCode = getDrmManagerService()->pread(
321                uniqueId, decryptHandle.get(), buffer, numBytes, offset);
322    }
323    return retCode;
324}
325
326status_t DrmManagerClientImpl::notify(const DrmInfoEvent& event) {
327    if (NULL != mOnInfoListener.get()) {
328        Mutex::Autolock _l(mLock);
329        sp<DrmManagerClient::OnInfoListener> listener = mOnInfoListener;
330        listener->onInfo(event);
331    }
332    return DRM_NO_ERROR;
333}
334
335DrmManagerClientImpl::DeathNotifier::~DeathNotifier() {
336    Mutex::Autolock lock(sMutex);
337    if (NULL != sDrmManagerService.get()) {
338        sDrmManagerService->asBinder()->unlinkToDeath(this);
339    }
340}
341
342void DrmManagerClientImpl::DeathNotifier::binderDied(const wp<IBinder>& who) {
343    Mutex::Autolock lock(sMutex);
344    DrmManagerClientImpl::sDrmManagerService.clear();
345    LOGW("DrmManager server died!");
346}
347
348