Files
android/libwvdrmengine/cdm/core/include/initialization_data.h
Rahul Frias 80659961ac Merges to android Pi release (part 7)
These are a set of CLs merged from the wv cdm repo to the android repo.

* Resolve intermittent decrypt error.

  Author: Jeff Fore <jfore@google.com>

  [ Merge of http://go/wvgerrit/35720 ]

  The CdmSession's closed state was not properly
  initialized resulting in intermittent
  SESSION_NOT_FOUND_FOR_DECRYPT errors.

  In CdmEngine::Decrypt the session is looked up by
  the key id. A list of open sessions is acquired
  by calling CdmSessionMap::GetSessionList and each
  session in the list is queried to see if it has
  the key.

  In building the list in CdmSessionMap::GetSessionList,
  sessions are only added to the query list *if* the session
  is not closed.

  The closed status was not initialized and during testing
  the query list would not contain the session causing
  CdmEngine::Decrypt to return SESSION_NOT_FOUND_FOR_DECRYPT
  resulting in the ce cdm api returning widevine::Cdm::kNoKey.

* No support for pre- C++11 compilation.

  Author: Gene Morgan <gmorgan@google.com>

  [ Merge of http://go/wvgerrit/35381 ]

* Handle unaligned nonce pointer in RewrapDeviceRSAKey calls.

  Author: Gene Morgan <gmorgan@google.com>

  [ Merge of http://go/wvgerrit/35340 ]

  The pointer points into a message and it may not be aligned.
  Always copy the nonce into aligned memory before checking it.

  BUG: 38140370

  Add note to CHANGELOG for this.

* Compiler strictness: more checks and code cleanup.

  Author: Gene Morgan <gmorgan@google.com>

  [ Merge of http://go/wvgerrit/35300 ]

  Use the switches proposed in b/38033653 (as much as possible - some
  conflicts with protobufs and gtest prevent fully accepting them).

  Switch to clang for x32 build; ensure that both x86-64 and x86-32 builds
  compile and link cleanly.

  BUG: 38032429
  BUG: 38033653

  This partially resolves b/38458986

* Android build fixes

  Author: Rahul Frias <rfrias@google.com>

  [ Merge of http://go/wvgerrit/35102 ]

  These corrections address compile warnings and errors for android
  and unit tests.

* Embedded License: Add sub license key sessions.

  Author: Jeff Fore <jfore@google.com>

  [ Merge of http://go/wvgerrit/33680 ]

  NOTE: this adds the AddSubSession() method, but it is not yet being
  used. Use and proper cleanup is in an upcoming CL.

* Embedded license: Add track label field.

  Author: Jeff Fore <jfore@google.com>

  [ Merge of http://go/wvgerrit/33660 ]

  A new track label field (a string) is added to the key container and the
  sub session data objects.

  This field will be used in handling sub license requests.

* Embedded license: extract keys from init_data.

  Author: Jeff Fore <jfore@google.com>

  [ Merge of http://go/wvgerrit/33621 ]

* Embedded license: add protobuf messages.

  Author: Jeff Fore <jfore@google.com>

  [ Merge of http://go/wvgerrit/33620 ]

  also sync the widevine header definition with recent naming changes.

* Improve handling of provisioning response errors.

  Author: Gene Morgan <gmorgan@google.com>

  [ Merge of http://go/wvgerrit/33600 ]

  Separate out the case of no response and the case
  where the message is believed to be a JSON+base64
  message but it doesn't parse properly.

BUG: 71650075
Test: Not currently passing. Will be addressed in a subsequent
  commit in the chain.

Change-Id: I3c86f1c54980b071aec7461ac58541836551f896
2018-01-16 19:29:04 -08:00

82 lines
2.9 KiB
C++

// Copyright 2014 Google Inc. All Rights Reserved.
#ifndef CORE_INCLUDE_INITIALIZATION_DATA_H_
#define CORE_INCLUDE_INITIALIZATION_DATA_H_
#include <string>
#include "license_protocol.pb.h"
#include "wv_cdm_types.h"
namespace wvcdm {
class WvCdmEngineTest;
class InitializationData {
public:
InitializationData(const std::string& type = std::string(),
const CdmInitData& data = CdmInitData());
bool is_supported() const { return is_cenc_ || is_webm_ || is_hls_; }
bool is_cenc() const { return is_cenc_; }
bool is_hls() const { return is_hls_; }
bool is_webm() const { return is_webm_; }
bool IsEmpty() const { return data_.empty(); }
const std::string& type() const { return type_; }
const CdmInitData& data() const { return data_; }
std::vector<uint8_t> hls_iv() const { return hls_iv_; }
CdmHlsMethod hls_method() const { return hls_method_; }
std::vector<video_widevine::SubLicense> ExtractEmbeddedKeys() const;
private:
// Parse a blob of multiple concatenated PSSH atoms to extract the first
// Widevine PSSH.
bool ExtractWidevinePssh(const CdmInitData& init_data, CdmInitData* output);
bool ExtractHlsAttributes(const std::string& attribute_list,
CdmHlsMethod* method, std::vector<uint8_t>* iv,
std::string* uri);
static bool ConstructWidevineInitData(CdmHlsMethod method,
const std::string& uri,
CdmInitData* output);
static bool ExtractQuotedAttribute(const std::string& attribute_list,
const std::string& key,
std::string* value);
static bool ExtractHexAttribute(const std::string& attribute_list,
const std::string& key,
std::vector<uint8_t>* value);
static bool ExtractAttribute(const std::string& attribute_list,
const std::string& key, std::string* value);
static std::vector<std::string> ExtractKeyFormatVersions(
const std::string& key_format_versions);
// For testing only:
#if defined(UNIT_TEST)
FRIEND_TEST(HlsAttributeExtractionTest, ExtractAttribute);
FRIEND_TEST(HlsConstructionTest, InitData);
FRIEND_TEST(HlsInitDataConstructionTest, InvalidUriDataFormat);
FRIEND_TEST(HlsInitDataConstructionTest, InvalidUriBase64Encode);
FRIEND_TEST(HlsHexAttributeExtractionTest, ExtractHexAttribute);
FRIEND_TEST(HlsKeyFormatVersionsExtractionTest, ExtractKeyFormatVersions);
FRIEND_TEST(HlsParseTest, Parse);
FRIEND_TEST(HlsQuotedAttributeExtractionTest, ExtractQuotedAttribute);
FRIEND_TEST(HlsTest, ExtractHlsAttributes);
#endif
std::string type_;
CdmInitData data_;
bool is_cenc_;
bool is_hls_;
bool is_webm_;
std::vector<uint8_t> hls_iv_;
CdmHlsMethod hls_method_;
};
} // namespace wvcdm
#endif // CORE_INCLUDE_INITIALIZATION_DATA_H_