DrmManagerClientImpl.cpp revision ab00df4d8585b181e9058eb1b9c7996aa3bbaeab
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    return getDrmManagerService()->saveRights(
149                uniqueId, drmRights, rightsPath, contentPath);
150}
151
152String8 DrmManagerClientImpl::getOriginalMimeType(
153        int uniqueId, const String8& path) {
154    String8 mimeType = EMPTY_STRING;
155    if (EMPTY_STRING != path) {
156        mimeType = getDrmManagerService()->getOriginalMimeType(uniqueId, path);
157    }
158    return mimeType;
159}
160
161int DrmManagerClientImpl::getDrmObjectType(
162            int uniqueId, const String8& path, const String8& mimeType) {
163    int drmOjectType = DrmObjectType::UNKNOWN;
164    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
165         drmOjectType =
166             getDrmManagerService()->getDrmObjectType(uniqueId, path, mimeType);
167    }
168    return drmOjectType;
169}
170
171int DrmManagerClientImpl::checkRightsStatus(
172            int uniqueId, const String8& path, int action) {
173    int rightsStatus = RightsStatus::RIGHTS_INVALID;
174    if (EMPTY_STRING != path) {
175        rightsStatus =
176            getDrmManagerService()->checkRightsStatus(uniqueId, path, action);
177    }
178    return rightsStatus;
179}
180
181status_t DrmManagerClientImpl::consumeRights(
182            int uniqueId, sp<DecryptHandle> &decryptHandle,
183            int action, bool reserve) {
184    status_t status = DRM_ERROR_UNKNOWN;
185    if (NULL != decryptHandle.get()) {
186        status = getDrmManagerService()->consumeRights(
187                uniqueId, decryptHandle.get(), action, reserve);
188    }
189    return status;
190}
191
192status_t DrmManagerClientImpl::setPlaybackStatus(
193            int uniqueId, sp<DecryptHandle> &decryptHandle,
194            int playbackStatus, int64_t position) {
195    status_t status = DRM_ERROR_UNKNOWN;
196    if (NULL != decryptHandle.get()) {
197        status = getDrmManagerService()->setPlaybackStatus(
198                uniqueId, decryptHandle.get(), playbackStatus, position);
199    }
200    return status;
201}
202
203bool DrmManagerClientImpl::validateAction(
204            int uniqueId, const String8& path,
205            int action, const ActionDescription& description) {
206    bool retCode = false;
207    if (EMPTY_STRING != path) {
208        retCode = getDrmManagerService()->validateAction(
209                uniqueId, path, action, description);
210    }
211    return retCode;
212}
213
214status_t DrmManagerClientImpl::removeRights(int uniqueId, const String8& path) {
215    status_t status = DRM_ERROR_UNKNOWN;
216    if (EMPTY_STRING != path) {
217        status = getDrmManagerService()->removeRights(uniqueId, path);
218    }
219    return status;
220}
221
222status_t DrmManagerClientImpl::removeAllRights(int uniqueId) {
223    return getDrmManagerService()->removeAllRights(uniqueId);
224}
225
226int DrmManagerClientImpl::openConvertSession(
227        int uniqueId, const String8& mimeType) {
228    int retCode = INVALID_VALUE;
229    if (EMPTY_STRING != mimeType) {
230        retCode = getDrmManagerService()->openConvertSession(uniqueId, mimeType);
231    }
232    return retCode;
233}
234
235DrmConvertedStatus* DrmManagerClientImpl::convertData(
236            int uniqueId, int convertId, const DrmBuffer* inputData) {
237    DrmConvertedStatus* drmConvertedStatus = NULL;
238    if (NULL != inputData) {
239         drmConvertedStatus =
240             getDrmManagerService()->convertData(uniqueId, convertId, inputData);
241    }
242    return drmConvertedStatus;
243}
244
245DrmConvertedStatus* DrmManagerClientImpl::closeConvertSession(
246        int uniqueId, int convertId) {
247    return getDrmManagerService()->closeConvertSession(uniqueId, convertId);
248}
249
250status_t DrmManagerClientImpl::getAllSupportInfo(
251            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
252    status_t status = DRM_ERROR_UNKNOWN;
253    if ((NULL != drmSupportInfoArray) && (NULL != length)) {
254        status = getDrmManagerService()->getAllSupportInfo(
255                uniqueId, length, drmSupportInfoArray);
256    }
257    return status;
258}
259
260sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
261            int uniqueId, int fd, off64_t offset, off64_t length) {
262    return getDrmManagerService()->openDecryptSession(uniqueId, fd, offset, length);
263}
264
265sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
266        int uniqueId, const char* uri) {
267    DecryptHandle* handle = NULL;
268    if (NULL != uri) {
269        handle = getDrmManagerService()->openDecryptSession(uniqueId, uri);
270    }
271    return handle;
272}
273
274status_t DrmManagerClientImpl::closeDecryptSession(
275        int uniqueId, sp<DecryptHandle> &decryptHandle) {
276    status_t status = DRM_ERROR_UNKNOWN;
277    if (NULL != decryptHandle.get()) {
278        status = getDrmManagerService()->closeDecryptSession(
279                uniqueId, decryptHandle.get());
280    }
281    return status;
282}
283
284status_t DrmManagerClientImpl::initializeDecryptUnit(
285        int uniqueId, sp<DecryptHandle> &decryptHandle,
286        int decryptUnitId, const DrmBuffer* headerInfo) {
287    status_t status = DRM_ERROR_UNKNOWN;
288    if ((NULL != decryptHandle.get()) && (NULL != headerInfo)) {
289        status = getDrmManagerService()->initializeDecryptUnit(
290                uniqueId, decryptHandle.get(), decryptUnitId, headerInfo);
291    }
292    return status;
293}
294
295status_t DrmManagerClientImpl::decrypt(
296        int uniqueId, sp<DecryptHandle> &decryptHandle,
297        int decryptUnitId, const DrmBuffer* encBuffer,
298        DrmBuffer** decBuffer, DrmBuffer* IV) {
299    status_t status = DRM_ERROR_UNKNOWN;
300    if ((NULL != decryptHandle.get()) && (NULL != encBuffer)
301        && (NULL != decBuffer) && (NULL != *decBuffer)) {
302        status = getDrmManagerService()->decrypt(
303                uniqueId, decryptHandle.get(), decryptUnitId,
304                encBuffer, decBuffer, IV);
305    }
306    return status;
307}
308
309status_t DrmManagerClientImpl::finalizeDecryptUnit(
310            int uniqueId, sp<DecryptHandle> &decryptHandle, int decryptUnitId) {
311    status_t status = DRM_ERROR_UNKNOWN;
312    if (NULL != decryptHandle.get()) {
313        status = getDrmManagerService()->finalizeDecryptUnit(
314                    uniqueId, decryptHandle.get(), decryptUnitId);
315    }
316    return status;
317}
318
319ssize_t DrmManagerClientImpl::pread(int uniqueId, sp<DecryptHandle> &decryptHandle,
320            void* buffer, ssize_t numBytes, off64_t offset) {
321    ssize_t retCode = INVALID_VALUE;
322    if ((NULL != decryptHandle.get()) && (NULL != buffer) && (0 < numBytes)) {
323        retCode = getDrmManagerService()->pread(
324                uniqueId, decryptHandle.get(), buffer, numBytes, offset);
325    }
326    return retCode;
327}
328
329status_t DrmManagerClientImpl::notify(const DrmInfoEvent& event) {
330    if (NULL != mOnInfoListener.get()) {
331        Mutex::Autolock _l(mLock);
332        sp<DrmManagerClient::OnInfoListener> listener = mOnInfoListener;
333        listener->onInfo(event);
334    }
335    return DRM_NO_ERROR;
336}
337
338DrmManagerClientImpl::DeathNotifier::~DeathNotifier() {
339    Mutex::Autolock lock(sMutex);
340    if (NULL != sDrmManagerService.get()) {
341        sDrmManagerService->asBinder()->unlinkToDeath(this);
342    }
343}
344
345void DrmManagerClientImpl::DeathNotifier::binderDied(const wp<IBinder>& who) {
346    Mutex::Autolock lock(sMutex);
347    DrmManagerClientImpl::sDrmManagerService.clear();
348    LOGW("DrmManager server died!");
349}
350
351