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#include <cutils/properties.h>
25
26#include "DrmManagerClientImpl.h"
27#include "NoOpDrmManagerClientImpl.h"
28
29using namespace android;
30
31#define INVALID_VALUE -1
32
33Mutex DrmManagerClientImpl::sMutex;
34sp<IDrmManagerService> DrmManagerClientImpl::sDrmManagerService;
35sp<DrmManagerClientImpl::DeathNotifier> DrmManagerClientImpl::sDeathNotifier;
36const String8 DrmManagerClientImpl::EMPTY_STRING("");
37
38DrmManagerClientImpl* DrmManagerClientImpl::create(
39        int* pUniqueId, bool isNative) {
40    sp<IDrmManagerService> service = getDrmManagerService();
41    if (service != NULL) {
42        *pUniqueId = getDrmManagerService()->addUniqueId(isNative);
43        return new DrmManagerClientImpl();
44    }
45    return new NoOpDrmManagerClientImpl();
46}
47
48void DrmManagerClientImpl::remove(int uniqueId) {
49    getDrmManagerService()->removeUniqueId(uniqueId);
50}
51
52const sp<IDrmManagerService>& DrmManagerClientImpl::getDrmManagerService() {
53    Mutex::Autolock lock(sMutex);
54    if (NULL == sDrmManagerService.get()) {
55        char value[PROPERTY_VALUE_MAX];
56        if (property_get("drm.service.enabled", value, NULL) == 0) {
57            // Drm is undefined for this device
58            return sDrmManagerService;
59        }
60
61        sp<IServiceManager> sm = defaultServiceManager();
62        sp<IBinder> binder;
63        do {
64            binder = sm->getService(String16("drm.drmManager"));
65            if (binder != 0) {
66                break;
67            }
68            ALOGW("DrmManagerService not published, waiting...");
69            struct timespec reqt;
70            reqt.tv_sec  = 0;
71            reqt.tv_nsec = 500000000; //0.5 sec
72            nanosleep(&reqt, NULL);
73        } while (true);
74        if (NULL == sDeathNotifier.get()) {
75            sDeathNotifier = new DeathNotifier();
76        }
77        binder->linkToDeath(sDeathNotifier);
78        sDrmManagerService = interface_cast<IDrmManagerService>(binder);
79    }
80    return sDrmManagerService;
81}
82
83void DrmManagerClientImpl::addClient(int uniqueId) {
84    getDrmManagerService()->addClient(uniqueId);
85}
86
87void DrmManagerClientImpl::removeClient(int uniqueId) {
88    getDrmManagerService()->removeClient(uniqueId);
89}
90
91status_t DrmManagerClientImpl::setOnInfoListener(
92            int uniqueId,
93            const sp<DrmManagerClient::OnInfoListener>& infoListener) {
94    Mutex::Autolock _l(mLock);
95    mOnInfoListener = infoListener;
96    return getDrmManagerService()->setDrmServiceListener(uniqueId,
97            (NULL != infoListener.get()) ? this : NULL);
98}
99
100DrmConstraints* DrmManagerClientImpl::getConstraints(
101        int uniqueId, const String8* path, const int action) {
102    DrmConstraints *drmConstraints = NULL;
103    if ((NULL != path) && (EMPTY_STRING != *path)) {
104        drmConstraints =
105            getDrmManagerService()->getConstraints(uniqueId, path, action);
106    }
107    return drmConstraints;
108}
109
110DrmMetadata* DrmManagerClientImpl::getMetadata(int uniqueId, const String8* path) {
111    DrmMetadata *drmMetadata = NULL;
112    if ((NULL != path) && (EMPTY_STRING != *path)) {
113        drmMetadata = getDrmManagerService()->getMetadata(uniqueId, path);
114    }
115    return drmMetadata;
116}
117
118bool DrmManagerClientImpl::canHandle(
119        int uniqueId, const String8& path, const String8& mimeType) {
120    bool retCode = false;
121    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
122        retCode = getDrmManagerService()->canHandle(uniqueId, path, mimeType);
123    }
124    return retCode;
125}
126
127DrmInfoStatus* DrmManagerClientImpl::processDrmInfo(
128        int uniqueId, const DrmInfo* drmInfo) {
129    DrmInfoStatus *drmInfoStatus = NULL;
130    if (NULL != drmInfo) {
131        drmInfoStatus = getDrmManagerService()->processDrmInfo(uniqueId, drmInfo);
132    }
133    return drmInfoStatus;
134}
135
136DrmInfo* DrmManagerClientImpl::acquireDrmInfo(
137        int uniqueId, const DrmInfoRequest* drmInfoRequest) {
138    DrmInfo* drmInfo = NULL;
139    if (NULL != drmInfoRequest) {
140        drmInfo = getDrmManagerService()->acquireDrmInfo(uniqueId, drmInfoRequest);
141    }
142    return drmInfo;
143}
144
145status_t DrmManagerClientImpl::saveRights(int uniqueId, const DrmRights& drmRights,
146            const String8& rightsPath, const String8& contentPath) {
147    return getDrmManagerService()->saveRights(
148                uniqueId, drmRights, rightsPath, contentPath);
149}
150
151String8 DrmManagerClientImpl::getOriginalMimeType(
152        int uniqueId, const String8& path, int fd) {
153    String8 mimeType = EMPTY_STRING;
154    if (EMPTY_STRING != path) {
155        mimeType = getDrmManagerService()->getOriginalMimeType(uniqueId, path, fd);
156    }
157    return mimeType;
158}
159
160int DrmManagerClientImpl::getDrmObjectType(
161            int uniqueId, const String8& path, const String8& mimeType) {
162    int drmOjectType = DrmObjectType::UNKNOWN;
163    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
164         drmOjectType =
165             getDrmManagerService()->getDrmObjectType(uniqueId, path, mimeType);
166    }
167    return drmOjectType;
168}
169
170int DrmManagerClientImpl::checkRightsStatus(
171            int uniqueId, const String8& path, int action) {
172    int rightsStatus = RightsStatus::RIGHTS_INVALID;
173    if (EMPTY_STRING != path) {
174        rightsStatus =
175            getDrmManagerService()->checkRightsStatus(uniqueId, path, action);
176    }
177    return rightsStatus;
178}
179
180status_t DrmManagerClientImpl::consumeRights(
181            int uniqueId, sp<DecryptHandle> &decryptHandle,
182            int action, bool reserve) {
183    status_t status = DRM_ERROR_UNKNOWN;
184    if (NULL != decryptHandle.get()) {
185        status = getDrmManagerService()->consumeRights(
186                uniqueId, decryptHandle.get(), action, reserve);
187    }
188    return status;
189}
190
191status_t DrmManagerClientImpl::setPlaybackStatus(
192            int uniqueId, sp<DecryptHandle> &decryptHandle,
193            int playbackStatus, int64_t position) {
194    status_t status = DRM_ERROR_UNKNOWN;
195    if (NULL != decryptHandle.get()) {
196        status = getDrmManagerService()->setPlaybackStatus(
197                uniqueId, decryptHandle.get(), playbackStatus, position);
198    }
199    return status;
200}
201
202bool DrmManagerClientImpl::validateAction(
203            int uniqueId, const String8& path,
204            int action, const ActionDescription& description) {
205    bool retCode = false;
206    if (EMPTY_STRING != path) {
207        retCode = getDrmManagerService()->validateAction(
208                uniqueId, path, action, description);
209    }
210    return retCode;
211}
212
213status_t DrmManagerClientImpl::removeRights(int uniqueId, const String8& path) {
214    status_t status = DRM_ERROR_UNKNOWN;
215    if (EMPTY_STRING != path) {
216        status = getDrmManagerService()->removeRights(uniqueId, path);
217    }
218    return status;
219}
220
221status_t DrmManagerClientImpl::removeAllRights(int uniqueId) {
222    return getDrmManagerService()->removeAllRights(uniqueId);
223}
224
225int DrmManagerClientImpl::openConvertSession(
226        int uniqueId, const String8& mimeType) {
227    int retCode = INVALID_VALUE;
228    if (EMPTY_STRING != mimeType) {
229        retCode = getDrmManagerService()->openConvertSession(uniqueId, mimeType);
230    }
231    return retCode;
232}
233
234DrmConvertedStatus* DrmManagerClientImpl::convertData(
235            int uniqueId, int convertId, const DrmBuffer* inputData) {
236    DrmConvertedStatus* drmConvertedStatus = NULL;
237    if (NULL != inputData) {
238         drmConvertedStatus =
239             getDrmManagerService()->convertData(uniqueId, convertId, inputData);
240    }
241    return drmConvertedStatus;
242}
243
244DrmConvertedStatus* DrmManagerClientImpl::closeConvertSession(
245        int uniqueId, int convertId) {
246    return getDrmManagerService()->closeConvertSession(uniqueId, convertId);
247}
248
249status_t DrmManagerClientImpl::getAllSupportInfo(
250            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
251    status_t status = DRM_ERROR_UNKNOWN;
252    if ((NULL != drmSupportInfoArray) && (NULL != length)) {
253        status = getDrmManagerService()->getAllSupportInfo(
254                uniqueId, length, drmSupportInfoArray);
255    }
256    return status;
257}
258
259sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
260            int uniqueId, int fd, off64_t offset,
261            off64_t length, const char* mime) {
262
263    return getDrmManagerService()->openDecryptSession(
264                uniqueId, fd, offset, length, mime);
265}
266
267sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
268        int uniqueId, const char* uri, const char* mime) {
269
270    DecryptHandle* handle = NULL;
271    if (NULL != uri) {
272        handle = getDrmManagerService()->openDecryptSession(uniqueId, uri, mime);
273    }
274    return handle;
275}
276
277sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
278            int uniqueId, const DrmBuffer& buf, const String8& mimeType) {
279    return getDrmManagerService()->openDecryptSession(uniqueId, buf, mimeType);
280}
281
282status_t DrmManagerClientImpl::closeDecryptSession(
283        int uniqueId, sp<DecryptHandle> &decryptHandle) {
284    status_t status = DRM_ERROR_UNKNOWN;
285    if (NULL != decryptHandle.get()) {
286        status = getDrmManagerService()->closeDecryptSession(
287                uniqueId, decryptHandle.get());
288    }
289    return status;
290}
291
292status_t DrmManagerClientImpl::initializeDecryptUnit(
293        int uniqueId, sp<DecryptHandle> &decryptHandle,
294        int decryptUnitId, const DrmBuffer* headerInfo) {
295    status_t status = DRM_ERROR_UNKNOWN;
296    if ((NULL != decryptHandle.get()) && (NULL != headerInfo)) {
297        status = getDrmManagerService()->initializeDecryptUnit(
298                uniqueId, decryptHandle.get(), decryptUnitId, headerInfo);
299    }
300    return status;
301}
302
303status_t DrmManagerClientImpl::decrypt(
304        int uniqueId, sp<DecryptHandle> &decryptHandle,
305        int decryptUnitId, const DrmBuffer* encBuffer,
306        DrmBuffer** decBuffer, DrmBuffer* IV) {
307    status_t status = DRM_ERROR_UNKNOWN;
308    if ((NULL != decryptHandle.get()) && (NULL != encBuffer)
309        && (NULL != decBuffer) && (NULL != *decBuffer)) {
310        status = getDrmManagerService()->decrypt(
311                uniqueId, decryptHandle.get(), decryptUnitId,
312                encBuffer, decBuffer, IV);
313    }
314    return status;
315}
316
317status_t DrmManagerClientImpl::finalizeDecryptUnit(
318            int uniqueId, sp<DecryptHandle> &decryptHandle, int decryptUnitId) {
319    status_t status = DRM_ERROR_UNKNOWN;
320    if (NULL != decryptHandle.get()) {
321        status = getDrmManagerService()->finalizeDecryptUnit(
322                    uniqueId, decryptHandle.get(), decryptUnitId);
323    }
324    return status;
325}
326
327ssize_t DrmManagerClientImpl::pread(int uniqueId, sp<DecryptHandle> &decryptHandle,
328            void* buffer, ssize_t numBytes, off64_t offset) {
329    ssize_t retCode = INVALID_VALUE;
330    if ((NULL != decryptHandle.get()) && (NULL != buffer) && (0 < numBytes)) {
331        retCode = getDrmManagerService()->pread(
332                uniqueId, decryptHandle.get(), buffer, numBytes, offset);
333    }
334    return retCode;
335}
336
337status_t DrmManagerClientImpl::notify(const DrmInfoEvent& event) {
338    if (NULL != mOnInfoListener.get()) {
339        Mutex::Autolock _l(mLock);
340        sp<DrmManagerClient::OnInfoListener> listener = mOnInfoListener;
341        listener->onInfo(event);
342    }
343    return DRM_NO_ERROR;
344}
345
346DrmManagerClientImpl::DeathNotifier::~DeathNotifier() {
347    Mutex::Autolock lock(sMutex);
348    if (NULL != sDrmManagerService.get()) {
349        IInterface::asBinder(sDrmManagerService)->unlinkToDeath(this);
350    }
351}
352
353void DrmManagerClientImpl::DeathNotifier::binderDied(
354            const wp<IBinder>& /* who */) {
355    Mutex::Autolock lock(sMutex);
356    DrmManagerClientImpl::sDrmManagerService.clear();
357    ALOGW("DrmManager server died!");
358}
359
360