Refactor EncryptorSource to prepare for live support
Remove Initialize() and Add AddKey(). Also remove fixed_encryptor_source.* and move the functionality to encryptor_source.*. Change-Id: I4fb61013177874a8b81854f10b2deda83accc683
This commit is contained in:
parent
c5f1e5eb7a
commit
107145c693
|
@ -6,12 +6,11 @@
|
|||
|
||||
#include "media/base/encryptor_source.h"
|
||||
|
||||
#include "base/strings/string_number_conversions.h"
|
||||
#include "media/base/aes_encryptor.h"
|
||||
#include "media/base/buffer_writer.h"
|
||||
|
||||
namespace {
|
||||
// Generate 64bit IV by default.
|
||||
const size_t kDefaultIvSize = 8u;
|
||||
|
||||
const uint8 kWidevineSystemId[] = {0xed, 0xef, 0x8b, 0xa9, 0x79, 0xd6,
|
||||
0x4a, 0xce, 0xa3, 0xc8, 0x27, 0xdc,
|
||||
0xd5, 0x1d, 0x21, 0xed};
|
||||
|
@ -19,23 +18,103 @@ const uint8 kWidevineSystemId[] = {0xed, 0xef, 0x8b, 0xa9, 0x79, 0xd6,
|
|||
|
||||
namespace media {
|
||||
|
||||
EncryptorSource::EncryptorSource()
|
||||
: iv_size_(kDefaultIvSize),
|
||||
key_system_id_(kWidevineSystemId,
|
||||
kWidevineSystemId + arraysize(kWidevineSystemId)) {}
|
||||
EncryptionKey::EncryptionKey() {}
|
||||
EncryptionKey::~EncryptionKey() {}
|
||||
|
||||
EncryptorSource::~EncryptorSource() {}
|
||||
|
||||
scoped_ptr<AesCtrEncryptor> EncryptorSource::CreateEncryptor() {
|
||||
scoped_ptr<AesCtrEncryptor> encryptor(new AesCtrEncryptor());
|
||||
const bool initialized =
|
||||
iv_.empty() ? encryptor->InitializeWithRandomIv(key_, iv_size_)
|
||||
: encryptor->InitializeWithIv(key_, iv_);
|
||||
if (!initialized) {
|
||||
LOG(ERROR) << "Failed to the initialize encryptor.";
|
||||
return scoped_ptr<AesCtrEncryptor>();
|
||||
Status EncryptorSource::GetKey(TrackType track_type, EncryptionKey* key) {
|
||||
DCHECK(key);
|
||||
DCHECK(encryption_key_);
|
||||
*key = *encryption_key_;
|
||||
return Status::OK;
|
||||
}
|
||||
|
||||
scoped_ptr<EncryptorSource> EncryptorSource::CreateFromHexStrings(
|
||||
const std::string& key_id_hex,
|
||||
const std::string& key_hex,
|
||||
const std::string& pssh_data_hex,
|
||||
const std::string& iv_hex) {
|
||||
scoped_ptr<EncryptionKey> encryption_key(new EncryptionKey());
|
||||
|
||||
if (!base::HexStringToBytes(key_id_hex, &encryption_key->key_id)) {
|
||||
LOG(ERROR) << "Cannot parse key_id_hex " << key_id_hex;
|
||||
return scoped_ptr<EncryptorSource>();
|
||||
}
|
||||
return encryptor.Pass();
|
||||
|
||||
if (!base::HexStringToBytes(key_hex, &encryption_key->key)) {
|
||||
LOG(ERROR) << "Cannot parse key_hex " << key_hex;
|
||||
return scoped_ptr<EncryptorSource>();
|
||||
}
|
||||
|
||||
std::vector<uint8> pssh_data;
|
||||
if (!base::HexStringToBytes(pssh_data_hex, &pssh_data)) {
|
||||
LOG(ERROR) << "Cannot parse pssh_hex " << pssh_data_hex;
|
||||
return scoped_ptr<EncryptorSource>();
|
||||
}
|
||||
|
||||
if (!iv_hex.empty()) {
|
||||
if (!base::HexStringToBytes(iv_hex, &encryption_key->iv)) {
|
||||
LOG(ERROR) << "Cannot parse iv_hex " << iv_hex;
|
||||
return scoped_ptr<EncryptorSource>();
|
||||
}
|
||||
}
|
||||
|
||||
encryption_key->pssh = PsshBoxFromPsshData(pssh_data);
|
||||
return scoped_ptr<EncryptorSource>(
|
||||
new EncryptorSource(encryption_key.Pass()));
|
||||
}
|
||||
|
||||
EncryptorSource::TrackType EncryptorSource::GetTrackTypeFromString(
|
||||
const std::string& track_type_string) {
|
||||
if (track_type_string == "SD")
|
||||
return TRACK_TYPE_SD;
|
||||
if (track_type_string == "HD")
|
||||
return TRACK_TYPE_HD;
|
||||
if (track_type_string == "AUDIO")
|
||||
return TRACK_TYPE_AUDIO;
|
||||
LOG(WARNING) << "Unexpected track type: " << track_type_string;
|
||||
return TRACK_TYPE_UNKNOWN;
|
||||
}
|
||||
|
||||
std::string EncryptorSource::TrackTypeToString(TrackType track_type) {
|
||||
switch (track_type) {
|
||||
case TRACK_TYPE_SD:
|
||||
return "SD";
|
||||
case TRACK_TYPE_HD:
|
||||
return "HD";
|
||||
case TRACK_TYPE_AUDIO:
|
||||
return "AUDIO";
|
||||
default:
|
||||
NOTIMPLEMENTED() << "Unknown track type: " << track_type;
|
||||
return "UNKNOWN";
|
||||
}
|
||||
}
|
||||
|
||||
std::vector<uint8> EncryptorSource::PsshBoxFromPsshData(
|
||||
const std::vector<uint8>& pssh_data) {
|
||||
const uint8 kPsshFourCC[] = {'p', 's', 's', 'h'};
|
||||
const uint32 kVersionAndFlags = 0;
|
||||
|
||||
const uint32 pssh_data_size = pssh_data.size();
|
||||
const uint32 total_size =
|
||||
sizeof(total_size) + sizeof(kPsshFourCC) + sizeof(kVersionAndFlags) +
|
||||
sizeof(kWidevineSystemId) + sizeof(pssh_data_size) + pssh_data_size;
|
||||
|
||||
BufferWriter writer;
|
||||
writer.AppendInt(total_size);
|
||||
writer.AppendArray(kPsshFourCC, sizeof(kPsshFourCC));
|
||||
writer.AppendInt(kVersionAndFlags);
|
||||
writer.AppendArray(kWidevineSystemId, sizeof(kWidevineSystemId));
|
||||
writer.AppendInt(pssh_data_size);
|
||||
writer.AppendVector(pssh_data);
|
||||
return std::vector<uint8>(writer.Buffer(), writer.Buffer() + writer.Size());
|
||||
}
|
||||
|
||||
EncryptorSource::EncryptorSource() {}
|
||||
EncryptorSource::EncryptorSource(scoped_ptr<EncryptionKey> encryption_key)
|
||||
: encryption_key_(encryption_key.Pass()) {
|
||||
DCHECK(encryption_key_);
|
||||
}
|
||||
|
||||
} // namespace media
|
||||
|
|
|
@ -10,56 +10,73 @@
|
|||
#include <vector>
|
||||
|
||||
#include "base/memory/scoped_ptr.h"
|
||||
#include "media/base/aes_encryptor.h"
|
||||
#include "media/base/status.h"
|
||||
|
||||
namespace media {
|
||||
|
||||
class AesCtrEncryptor;
|
||||
struct EncryptionKey {
|
||||
EncryptionKey();
|
||||
~EncryptionKey();
|
||||
|
||||
std::vector<uint8> key_id;
|
||||
std::vector<uint8> key;
|
||||
std::vector<uint8> pssh;
|
||||
std::vector<uint8> iv;
|
||||
};
|
||||
|
||||
/// EncryptorSource is responsible for encryption key acquisition.
|
||||
class EncryptorSource {
|
||||
public:
|
||||
EncryptorSource();
|
||||
enum TrackType {
|
||||
TRACK_TYPE_UNKNOWN = 0,
|
||||
TRACK_TYPE_SD = 1,
|
||||
TRACK_TYPE_HD = 2,
|
||||
TRACK_TYPE_AUDIO = 3,
|
||||
NUM_VALID_TRACK_TYPES = 3
|
||||
};
|
||||
|
||||
virtual ~EncryptorSource();
|
||||
|
||||
/// Initialize the encryptor source. Calling other public methods of this
|
||||
/// class without this method returning OK results in an undefined behavior.
|
||||
virtual Status Initialize() = 0;
|
||||
/// Get encryption key of the specified track type.
|
||||
/// @return OK on success, an error status otherwise.
|
||||
virtual Status GetKey(TrackType track_type, EncryptionKey* key);
|
||||
|
||||
/// Create an encryptor from this encryptor source. The encryptor will be
|
||||
/// initialized with a random IV of the default size by default. The behavior
|
||||
/// can be adjusted using set_iv_size or set_iv (exclusive).
|
||||
scoped_ptr<AesCtrEncryptor> CreateEncryptor();
|
||||
/// Create EncryptorSource object from hex strings.
|
||||
/// @param key_id_hex is the key id in hex string.
|
||||
/// @param key_hex is the key in hex string.
|
||||
/// @param pssh_data_hex is the pssh_data in hex string.
|
||||
/// @param iv_hex is the IV in hex string. If not specified, a randomly
|
||||
/// generated IV with the default length will be used.
|
||||
/// Note: GetKey on the created key source will always return the same key
|
||||
/// for all track types.
|
||||
static scoped_ptr<EncryptorSource> CreateFromHexStrings(
|
||||
const std::string& key_id_hex,
|
||||
const std::string& key_hex,
|
||||
const std::string& pssh_data_hex,
|
||||
const std::string& iv_hex);
|
||||
|
||||
const std::vector<uint8>& key_id() const { return key_id_; }
|
||||
const std::vector<uint8>& key() const { return key_; }
|
||||
const std::vector<uint8>& pssh() const { return pssh_; }
|
||||
const std::vector<uint8>& key_system_id() const { return key_system_id_; }
|
||||
size_t iv_size() const { return iv_.empty() ? iv_size_ : iv_.size(); }
|
||||
/// Convert string representation of track type to enum representation.
|
||||
static TrackType GetTrackTypeFromString(const std::string& track_type_string);
|
||||
|
||||
/// Set IV size. The encryptor will be initialized with a random IV of the
|
||||
/// specified size. Mutually exclusive with set_iv.
|
||||
void set_iv_size(size_t iv_size) { iv_size_ = iv_size; }
|
||||
/// Set IV. The encryptor will be initialized with the specified IV.
|
||||
/// Mutually exclusive with set_iv_size.
|
||||
void set_iv(std::vector<uint8>& iv) { iv_ = iv; }
|
||||
/// Convert TrackType to string.
|
||||
static std::string TrackTypeToString(TrackType track_type);
|
||||
|
||||
protected:
|
||||
void set_key_id(const std::vector<uint8>& key_id) { key_id_ = key_id; }
|
||||
void set_key(const std::vector<uint8>& key) { key_ = key; }
|
||||
void set_pssh(const std::vector<uint8>& pssh) { pssh_ = pssh; }
|
||||
EncryptorSource();
|
||||
|
||||
/// @return the raw bytes of the pssh box with system ID and box header
|
||||
/// included.
|
||||
static std::vector<uint8> PsshBoxFromPsshData(
|
||||
const std::vector<uint8>& pssh_data);
|
||||
|
||||
private:
|
||||
std::vector<uint8> key_id_;
|
||||
std::vector<uint8> key_;
|
||||
std::vector<uint8> pssh_;
|
||||
size_t iv_size_;
|
||||
std::vector<uint8> iv_;
|
||||
const std::vector<uint8> key_system_id_;
|
||||
explicit EncryptorSource(scoped_ptr<EncryptionKey> encryption_key);
|
||||
|
||||
scoped_ptr<EncryptionKey> encryption_key_;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(EncryptorSource);
|
||||
};
|
||||
}
|
||||
|
||||
} // namespace media
|
||||
|
||||
#endif // MEDIA_BASE_ENCRYPTOR_SOURCE_H_
|
||||
|
|
|
@ -76,8 +76,6 @@
|
|||
'decryptor_source.h',
|
||||
'encryptor_source.cc',
|
||||
'encryptor_source.h',
|
||||
'fixed_encryptor_source.cc',
|
||||
'fixed_encryptor_source.h',
|
||||
'limits.h',
|
||||
'media_parser.h',
|
||||
'media_sample.cc',
|
||||
|
|
|
@ -9,6 +9,7 @@
|
|||
#include "base/base64.h"
|
||||
#include "base/json/json_reader.h"
|
||||
#include "base/json/json_writer.h"
|
||||
#include "base/stl_util.h"
|
||||
#include "base/time/time.h"
|
||||
#include "base/threading/platform_thread.h"
|
||||
#include "base/values.h"
|
||||
|
@ -64,9 +65,9 @@ bool GetKeyAndKeyId(const base::DictionaryValue& track_dict,
|
|||
return true;
|
||||
}
|
||||
|
||||
bool GetPssh(const base::DictionaryValue& track_dict,
|
||||
std::vector<uint8>* pssh) {
|
||||
DCHECK(pssh);
|
||||
bool GetPsshData(const base::DictionaryValue& track_dict,
|
||||
std::vector<uint8>* pssh_data) {
|
||||
DCHECK(pssh_data);
|
||||
|
||||
const base::ListValue* pssh_list;
|
||||
RCHECK(track_dict.GetList("pssh", &pssh_list));
|
||||
|
@ -82,11 +83,11 @@ bool GetPssh(const base::DictionaryValue& track_dict,
|
|||
LOG(ERROR) << "Expecting drm_type 'WIDEVINE', get '" << drm_type << "'.";
|
||||
return false;
|
||||
}
|
||||
std::string pssh_base64_string;
|
||||
RCHECK(pssh_dict->GetString("data", &pssh_base64_string));
|
||||
std::string pssh_data_base64_string;
|
||||
RCHECK(pssh_dict->GetString("data", &pssh_data_base64_string));
|
||||
|
||||
VLOG(2) << "Pssh:" << pssh_base64_string;
|
||||
RCHECK(Base64StringToBytes(pssh_base64_string, pssh));
|
||||
VLOG(2) << "Pssh Data:" << pssh_data_base64_string;
|
||||
RCHECK(Base64StringToBytes(pssh_data_base64_string, pssh_data));
|
||||
return true;
|
||||
}
|
||||
|
||||
|
@ -97,18 +98,47 @@ namespace media {
|
|||
WidevineEncryptorSource::WidevineEncryptorSource(
|
||||
const std::string& server_url,
|
||||
const std::string& content_id,
|
||||
TrackType track_type,
|
||||
scoped_ptr<RequestSigner> signer)
|
||||
: http_fetcher_(new SimpleHttpFetcher()),
|
||||
server_url_(server_url),
|
||||
content_id_(content_id),
|
||||
track_type_(track_type),
|
||||
signer_(signer.Pass()) {
|
||||
signer_(signer.Pass()),
|
||||
key_fetched_(false) {
|
||||
DCHECK(signer_);
|
||||
}
|
||||
WidevineEncryptorSource::~WidevineEncryptorSource() {}
|
||||
WidevineEncryptorSource::~WidevineEncryptorSource() {
|
||||
STLDeleteValues(&encryption_key_map_);
|
||||
}
|
||||
|
||||
Status WidevineEncryptorSource::Initialize() {
|
||||
Status WidevineEncryptorSource::GetKey(TrackType track_type,
|
||||
EncryptionKey* key) {
|
||||
DCHECK(track_type == TRACK_TYPE_SD || track_type == TRACK_TYPE_HD ||
|
||||
track_type == TRACK_TYPE_AUDIO);
|
||||
Status status;
|
||||
if (!key_fetched_) {
|
||||
base::AutoLock auto_lock(lock_);
|
||||
if (!key_fetched_) {
|
||||
status = FetchKeys();
|
||||
if (status.ok())
|
||||
key_fetched_ = true;
|
||||
}
|
||||
}
|
||||
if (!status.ok())
|
||||
return status;
|
||||
if (encryption_key_map_.find(track_type) == encryption_key_map_.end()) {
|
||||
return Status(error::INTERNAL_ERROR,
|
||||
"Cannot find key of type " + TrackTypeToString(track_type));
|
||||
}
|
||||
*key = *encryption_key_map_[track_type];
|
||||
return Status::OK;
|
||||
}
|
||||
|
||||
void WidevineEncryptorSource::set_http_fetcher(
|
||||
scoped_ptr<HttpFetcher> http_fetcher) {
|
||||
http_fetcher_ = http_fetcher.Pass();
|
||||
}
|
||||
|
||||
Status WidevineEncryptorSource::FetchKeys() {
|
||||
std::string request;
|
||||
FillRequest(content_id_, &request);
|
||||
|
||||
|
@ -156,24 +186,6 @@ Status WidevineEncryptorSource::Initialize() {
|
|||
"Failed to recover from server internal error.");
|
||||
}
|
||||
|
||||
WidevineEncryptorSource::TrackType
|
||||
WidevineEncryptorSource::GetTrackTypeFromString(
|
||||
const std::string& track_type_string) {
|
||||
if (track_type_string == "SD")
|
||||
return TRACK_TYPE_SD;
|
||||
if (track_type_string == "HD")
|
||||
return TRACK_TYPE_HD;
|
||||
if (track_type_string == "AUDIO")
|
||||
return TRACK_TYPE_AUDIO;
|
||||
LOG(WARNING) << "Unexpected track type: " << track_type_string;
|
||||
return TRACK_TYPE_UNKNOWN;
|
||||
}
|
||||
|
||||
void WidevineEncryptorSource::set_http_fetcher(
|
||||
scoped_ptr<HttpFetcher> http_fetcher) {
|
||||
http_fetcher_ = http_fetcher.Pass();
|
||||
}
|
||||
|
||||
void WidevineEncryptorSource::FillRequest(const std::string& content_id,
|
||||
std::string* request) {
|
||||
DCHECK(request);
|
||||
|
@ -252,11 +264,6 @@ bool WidevineEncryptorSource::DecodeResponse(const std::string& raw_response,
|
|||
return true;
|
||||
}
|
||||
|
||||
bool WidevineEncryptorSource::IsExpectedTrackType(
|
||||
const std::string& track_type_string) {
|
||||
return track_type_ == GetTrackTypeFromString(track_type_string);
|
||||
}
|
||||
|
||||
bool WidevineEncryptorSource::ExtractEncryptionKey(const std::string& response,
|
||||
bool* transient_error) {
|
||||
DCHECK(transient_error);
|
||||
|
@ -281,33 +288,28 @@ bool WidevineEncryptorSource::ExtractEncryptionKey(const std::string& response,
|
|||
|
||||
const base::ListValue* tracks;
|
||||
RCHECK(license_dict->GetList("tracks", &tracks));
|
||||
RCHECK(tracks->GetSize() >= NUM_VALID_TRACK_TYPES);
|
||||
|
||||
for (base::ListValue::const_iterator it = tracks->begin();
|
||||
it != tracks->end();
|
||||
++it) {
|
||||
for (size_t i = 0; i < tracks->GetSize(); ++i) {
|
||||
const base::DictionaryValue* track_dict;
|
||||
RCHECK((*it)->GetAsDictionary(&track_dict));
|
||||
RCHECK(tracks->GetDictionary(i, &track_dict));
|
||||
|
||||
std::string track_type;
|
||||
RCHECK(track_dict->GetString("type", &track_type));
|
||||
if (!IsExpectedTrackType(track_type))
|
||||
continue;
|
||||
std::string track_type_str;
|
||||
RCHECK(track_dict->GetString("type", &track_type_str));
|
||||
TrackType track_type = GetTrackTypeFromString(track_type_str);
|
||||
DCHECK_NE(TRACK_TYPE_UNKNOWN, track_type);
|
||||
RCHECK(encryption_key_map_.find(track_type) == encryption_key_map_.end());
|
||||
|
||||
std::vector<uint8> key_id;
|
||||
std::vector<uint8> key;
|
||||
std::vector<uint8> pssh;
|
||||
if (!GetKeyAndKeyId(*track_dict, &key, &key_id) ||
|
||||
!GetPssh(*track_dict, &pssh))
|
||||
scoped_ptr<EncryptionKey> encryption_key(new EncryptionKey());
|
||||
std::vector<uint8> pssh_data;
|
||||
if (!GetKeyAndKeyId(*track_dict, &encryption_key->key,
|
||||
&encryption_key->key_id) ||
|
||||
!GetPsshData(*track_dict, &pssh_data))
|
||||
return false;
|
||||
|
||||
set_key_id(key_id);
|
||||
set_key(key);
|
||||
set_pssh(pssh);
|
||||
return true;
|
||||
encryption_key->pssh = PsshBoxFromPsshData(pssh_data);
|
||||
encryption_key_map_[track_type] = encryption_key.release();
|
||||
}
|
||||
LOG(ERROR) << "Cannot find key of type " << track_type_ << " from '"
|
||||
<< response << "'.";
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace media
|
||||
|
|
|
@ -7,8 +7,11 @@
|
|||
#ifndef MEDIA_BASE_WIDEVINE_ENCRYPTOR_SOURCE_H_
|
||||
#define MEDIA_BASE_WIDEVINE_ENCRYPTOR_SOURCE_H_
|
||||
|
||||
#include <map>
|
||||
|
||||
#include "base/basictypes.h"
|
||||
#include "base/memory/scoped_ptr.h"
|
||||
#include "base/synchronization/lock.h"
|
||||
#include "media/base/encryptor_source.h"
|
||||
|
||||
namespace media {
|
||||
|
@ -19,34 +22,25 @@ class RequestSigner;
|
|||
/// Encryptor source which talks to the Widevine encryption service.
|
||||
class WidevineEncryptorSource : public EncryptorSource {
|
||||
public:
|
||||
enum TrackType {
|
||||
TRACK_TYPE_UNKNOWN = 0,
|
||||
TRACK_TYPE_SD,
|
||||
TRACK_TYPE_HD,
|
||||
TRACK_TYPE_AUDIO
|
||||
};
|
||||
|
||||
/// @param server_url is the Widevine common encryption server url.
|
||||
/// @param content_id the unique id identify the content to be encrypted.
|
||||
/// @param track_type is the content type, can be AUDIO, SD or HD.
|
||||
/// @param signer must not be NULL.
|
||||
WidevineEncryptorSource(const std::string& server_url,
|
||||
const std::string& content_id,
|
||||
TrackType track_type,
|
||||
scoped_ptr<RequestSigner> signer);
|
||||
virtual ~WidevineEncryptorSource();
|
||||
|
||||
/// EncryptorSource implementation override.
|
||||
virtual Status Initialize() OVERRIDE;
|
||||
virtual Status GetKey(TrackType track_type, EncryptionKey* key) OVERRIDE;
|
||||
|
||||
/// Inject an @b HttpFetcher object, mainly used for testing.
|
||||
/// @param http_fetcher points to the @b HttpFetcher object to be injected.
|
||||
void set_http_fetcher(scoped_ptr<HttpFetcher> http_fetcher);
|
||||
|
||||
static WidevineEncryptorSource::TrackType GetTrackTypeFromString(
|
||||
const std::string& track_type_string);
|
||||
|
||||
private:
|
||||
// Fetch keys from server.
|
||||
Status FetchKeys();
|
||||
|
||||
// Fill |request| with necessary fields for Widevine encryption request.
|
||||
// |request| should not be NULL.
|
||||
void FillRequest(const std::string& content_id, std::string* request);
|
||||
|
@ -56,7 +50,6 @@ class WidevineEncryptorSource : public EncryptorSource {
|
|||
// Decode |response| from JSON formatted |raw_response|.
|
||||
// |response| should not be NULL.
|
||||
bool DecodeResponse(const std::string& raw_response, std::string* response);
|
||||
bool IsExpectedTrackType(const std::string& track_type_string);
|
||||
// Extract encryption key from |response|, which is expected to be properly
|
||||
// formatted. |transient_error| will be set to true if it fails and the
|
||||
// failure is because of a transient error from the server. |transient_error|
|
||||
|
@ -70,9 +63,12 @@ class WidevineEncryptorSource : public EncryptorSource {
|
|||
scoped_ptr<HttpFetcher> http_fetcher_;
|
||||
std::string server_url_;
|
||||
std::string content_id_;
|
||||
TrackType track_type_;
|
||||
scoped_ptr<RequestSigner> signer_;
|
||||
|
||||
mutable base::Lock lock_;
|
||||
bool key_fetched_; // Protected by lock_;
|
||||
std::map<TrackType, EncryptionKey*> encryption_key_map_;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(WidevineEncryptorSource);
|
||||
};
|
||||
|
||||
|
|
|
@ -17,16 +17,11 @@
|
|||
namespace {
|
||||
const char kServerUrl[] = "http://www.foo.com/getcontentkey";
|
||||
const char kContentId[] = "ContentFoo";
|
||||
const char kTrackType[] = "SD";
|
||||
const char kSignerName[] = "SignerFoo";
|
||||
|
||||
const char kMockSignature[] = "MockSignature";
|
||||
|
||||
const char kMockKeyId[] = "MockKeyId";
|
||||
const char kMockKey[] = "MockKey";
|
||||
const char kMockPsshData[] = "MockPsshData";
|
||||
|
||||
// The lisence service may return an error indicating a transient error has
|
||||
// The license service may return an error indicating a transient error has
|
||||
// just happened in the server, or other types of errors.
|
||||
// WidevineEncryptorSource will perform a number of retries on transient errors;
|
||||
// WidevineEncryptorSource does not know about other errors and retries are not
|
||||
|
@ -39,11 +34,11 @@ const char kExpectedRequestMessageFormat[] =
|
|||
"\"tracks\":[{\"type\":\"SD\"},{\"type\":\"HD\"},{\"type\":\"AUDIO\"}]}";
|
||||
const char kExpectedSignedMessageFormat[] =
|
||||
"{\"request\":\"%s\",\"signature\":\"%s\",\"signer\":\"%s\"}";
|
||||
const char kLicenseOkResponseFormat[] =
|
||||
"{\"status\":\"OK\",\"tracks\":[{\"type\":\"%s\",\"key_id\":\"%s\",\"key\":"
|
||||
"\"%s\",\"pssh\":[{\"drm_type\":\"WIDEVINE\",\"data\":\"%s\"}]}]}";
|
||||
const char kLicenseErrorResponseFormat[] =
|
||||
"{\"status\":\"%s\",\"drm\":[],\"tracks\":[]}";
|
||||
const char kTrackFormat[] =
|
||||
"{\"type\":\"%s\",\"key_id\":\"%s\",\"key\":"
|
||||
"\"%s\",\"pssh\":[{\"drm_type\":\"WIDEVINE\",\"data\":\"%s\"}]}";
|
||||
const char kLicenseResponseFormat[] =
|
||||
"{\"status\":\"%s\",\"tracks\":[%s]}";
|
||||
const char kHttpResponseFormat[] = "{\"response\":\"%s\"}";
|
||||
|
||||
std::string Base64Encode(const std::string& input) {
|
||||
|
@ -55,6 +50,41 @@ std::string Base64Encode(const std::string& input) {
|
|||
std::string ToString(const std::vector<uint8> v) {
|
||||
return std::string(v.begin(), v.end());
|
||||
}
|
||||
|
||||
std::string GetMockKeyId(const std::string& track_type) {
|
||||
return "MockKeyId" + track_type;
|
||||
}
|
||||
|
||||
std::string GetMockKey(const std::string& track_type) {
|
||||
return "MockKey" + track_type;
|
||||
}
|
||||
|
||||
std::string GetMockPsshData(const std::string& track_type) {
|
||||
return "MockPsshData" + track_type;
|
||||
}
|
||||
|
||||
std::string GenerateMockLicenseResponse() {
|
||||
const std::string kTrackTypes[] = {"SD", "HD", "AUDIO"};
|
||||
std::string tracks;
|
||||
for (size_t i = 0; i < 3; ++i) {
|
||||
if (!tracks.empty())
|
||||
tracks += ",";
|
||||
tracks += base::StringPrintf(
|
||||
kTrackFormat,
|
||||
kTrackTypes[i].c_str(),
|
||||
Base64Encode(GetMockKeyId(kTrackTypes[i])).c_str(),
|
||||
Base64Encode(GetMockKey(kTrackTypes[i])).c_str(),
|
||||
Base64Encode(GetMockPsshData(kTrackTypes[i])).c_str());
|
||||
}
|
||||
return base::StringPrintf(kLicenseResponseFormat, "OK", tracks.c_str());
|
||||
}
|
||||
|
||||
std::string GetPsshDataFromPsshBox(const std::string& pssh_box) {
|
||||
const size_t kPsshDataOffset = 32u;
|
||||
DCHECK_LT(kPsshDataOffset, pssh_box.size());
|
||||
return pssh_box.substr(kPsshDataOffset);
|
||||
}
|
||||
|
||||
} // namespace
|
||||
|
||||
using ::testing::_;
|
||||
|
@ -103,7 +133,6 @@ class WidevineEncryptorSourceTest : public ::testing::Test {
|
|||
widevine_encryptor_source_.reset(new WidevineEncryptorSource(
|
||||
kServerUrl,
|
||||
kContentId,
|
||||
WidevineEncryptorSource::GetTrackTypeFromString(kTrackType),
|
||||
mock_request_signer_.PassAs<RequestSigner>()));
|
||||
widevine_encryptor_source_->set_http_fetcher(
|
||||
mock_http_fetcher_.PassAs<HttpFetcher>());
|
||||
|
@ -118,14 +147,14 @@ class WidevineEncryptorSourceTest : public ::testing::Test {
|
|||
};
|
||||
|
||||
TEST_F(WidevineEncryptorSourceTest, GetTrackTypeFromString) {
|
||||
EXPECT_EQ(WidevineEncryptorSource::TRACK_TYPE_SD,
|
||||
WidevineEncryptorSource::GetTrackTypeFromString("SD"));
|
||||
EXPECT_EQ(WidevineEncryptorSource::TRACK_TYPE_HD,
|
||||
WidevineEncryptorSource::GetTrackTypeFromString("HD"));
|
||||
EXPECT_EQ(WidevineEncryptorSource::TRACK_TYPE_AUDIO,
|
||||
WidevineEncryptorSource::GetTrackTypeFromString("AUDIO"));
|
||||
EXPECT_EQ(WidevineEncryptorSource::TRACK_TYPE_UNKNOWN,
|
||||
WidevineEncryptorSource::GetTrackTypeFromString("FOO"));
|
||||
EXPECT_EQ(EncryptorSource::TRACK_TYPE_SD,
|
||||
EncryptorSource::GetTrackTypeFromString("SD"));
|
||||
EXPECT_EQ(EncryptorSource::TRACK_TYPE_HD,
|
||||
EncryptorSource::GetTrackTypeFromString("HD"));
|
||||
EXPECT_EQ(EncryptorSource::TRACK_TYPE_AUDIO,
|
||||
EncryptorSource::GetTrackTypeFromString("AUDIO"));
|
||||
EXPECT_EQ(EncryptorSource::TRACK_TYPE_UNKNOWN,
|
||||
EncryptorSource::GetTrackTypeFromString("FOO"));
|
||||
}
|
||||
|
||||
TEST_F(WidevineEncryptorSourceTest, GeneratureSignatureFailure) {
|
||||
|
@ -133,8 +162,10 @@ TEST_F(WidevineEncryptorSourceTest, GeneratureSignatureFailure) {
|
|||
.WillOnce(Return(false));
|
||||
|
||||
CreateWidevineEncryptorSource();
|
||||
EncryptionKey encryption_key;
|
||||
ASSERT_EQ(Status(error::INTERNAL_ERROR, "Signature generation failed."),
|
||||
widevine_encryptor_source_->Initialize());
|
||||
widevine_encryptor_source_->GetKey(EncryptorSource::TRACK_TYPE_SD,
|
||||
&encryption_key));
|
||||
}
|
||||
|
||||
// Check whether expected request message and post data was generated and
|
||||
|
@ -155,30 +186,35 @@ TEST_F(WidevineEncryptorSourceTest, HttpPostFailure) {
|
|||
.WillOnce(Return(kMockStatus));
|
||||
|
||||
CreateWidevineEncryptorSource();
|
||||
ASSERT_EQ(kMockStatus, widevine_encryptor_source_->Initialize());
|
||||
EncryptionKey encryption_key;
|
||||
ASSERT_EQ(kMockStatus,
|
||||
widevine_encryptor_source_->GetKey(EncryptorSource::TRACK_TYPE_SD,
|
||||
&encryption_key));
|
||||
}
|
||||
|
||||
TEST_F(WidevineEncryptorSourceTest, LicenseStatusOK) {
|
||||
EXPECT_CALL(*mock_request_signer_, GenerateSignature(_, _))
|
||||
.WillOnce(Return(true));
|
||||
|
||||
std::string mock_license_status =
|
||||
base::StringPrintf(kLicenseOkResponseFormat,
|
||||
kTrackType,
|
||||
Base64Encode(kMockKeyId).c_str(),
|
||||
Base64Encode(kMockKey).c_str(),
|
||||
Base64Encode(kMockPsshData).c_str());
|
||||
std::string expected_response = base::StringPrintf(
|
||||
kHttpResponseFormat, Base64Encode(mock_license_status).c_str());
|
||||
kHttpResponseFormat, Base64Encode(GenerateMockLicenseResponse()).c_str());
|
||||
|
||||
EXPECT_CALL(*mock_http_fetcher_, Post(_, _, _))
|
||||
.WillOnce(DoAll(SetArgPointee<2>(expected_response), Return(Status::OK)));
|
||||
|
||||
CreateWidevineEncryptorSource();
|
||||
ASSERT_OK(widevine_encryptor_source_->Initialize());
|
||||
EXPECT_EQ(kMockKeyId, ToString(widevine_encryptor_source_->key_id()));
|
||||
EXPECT_EQ(kMockKey, ToString(widevine_encryptor_source_->key()));
|
||||
EXPECT_EQ(kMockPsshData, ToString(widevine_encryptor_source_->pssh()));
|
||||
|
||||
EncryptionKey encryption_key;
|
||||
const std::string kTrackTypes[] = {"SD", "HD", "AUDIO"};
|
||||
for (size_t i = 0; i < 3; ++i) {
|
||||
ASSERT_OK(widevine_encryptor_source_->GetKey(
|
||||
EncryptorSource::GetTrackTypeFromString(kTrackTypes[i]),
|
||||
&encryption_key));
|
||||
EXPECT_EQ(GetMockKeyId(kTrackTypes[i]), ToString(encryption_key.key_id));
|
||||
EXPECT_EQ(GetMockKey(kTrackTypes[i]), ToString(encryption_key.key));
|
||||
EXPECT_EQ(GetMockPsshData(kTrackTypes[i]),
|
||||
GetPsshDataFromPsshBox(ToString(encryption_key.pssh)));
|
||||
}
|
||||
}
|
||||
|
||||
TEST_F(WidevineEncryptorSourceTest, RetryOnTransientError) {
|
||||
|
@ -186,18 +222,12 @@ TEST_F(WidevineEncryptorSourceTest, RetryOnTransientError) {
|
|||
.WillOnce(Return(true));
|
||||
|
||||
std::string mock_license_status = base::StringPrintf(
|
||||
kLicenseErrorResponseFormat, kLicenseStatusTransientError);
|
||||
kLicenseResponseFormat, kLicenseStatusTransientError, "");
|
||||
std::string expected_response = base::StringPrintf(
|
||||
kHttpResponseFormat, Base64Encode(mock_license_status).c_str());
|
||||
|
||||
std::string mock_retried_license_status =
|
||||
base::StringPrintf(kLicenseOkResponseFormat,
|
||||
kTrackType,
|
||||
Base64Encode(kMockKeyId).c_str(),
|
||||
Base64Encode(kMockKey).c_str(),
|
||||
Base64Encode(kMockPsshData).c_str());
|
||||
std::string expected_retried_response = base::StringPrintf(
|
||||
kHttpResponseFormat, Base64Encode(mock_retried_license_status).c_str());
|
||||
kHttpResponseFormat, Base64Encode(GenerateMockLicenseResponse()).c_str());
|
||||
|
||||
// Retry is expected on transient error.
|
||||
EXPECT_CALL(*mock_http_fetcher_, Post(_, _, _))
|
||||
|
@ -206,10 +236,13 @@ TEST_F(WidevineEncryptorSourceTest, RetryOnTransientError) {
|
|||
Return(Status::OK)));
|
||||
|
||||
CreateWidevineEncryptorSource();
|
||||
ASSERT_OK(widevine_encryptor_source_->Initialize());
|
||||
EXPECT_EQ(kMockKeyId, ToString(widevine_encryptor_source_->key_id()));
|
||||
EXPECT_EQ(kMockKey, ToString(widevine_encryptor_source_->key()));
|
||||
EXPECT_EQ(kMockPsshData, ToString(widevine_encryptor_source_->pssh()));
|
||||
EncryptionKey encryption_key;
|
||||
ASSERT_OK(widevine_encryptor_source_->GetKey(EncryptorSource::TRACK_TYPE_SD,
|
||||
&encryption_key));
|
||||
EXPECT_EQ(GetMockKeyId("SD"), ToString(encryption_key.key_id));
|
||||
EXPECT_EQ(GetMockKey("SD"), ToString(encryption_key.key));
|
||||
EXPECT_EQ(GetMockPsshData("SD"),
|
||||
GetPsshDataFromPsshBox(ToString(encryption_key.pssh)));
|
||||
}
|
||||
|
||||
TEST_F(WidevineEncryptorSourceTest, NoRetryOnUnknownError) {
|
||||
|
@ -217,7 +250,7 @@ TEST_F(WidevineEncryptorSourceTest, NoRetryOnUnknownError) {
|
|||
.WillOnce(Return(true));
|
||||
|
||||
std::string mock_license_status = base::StringPrintf(
|
||||
kLicenseErrorResponseFormat, kLicenseStatusUnknownError);
|
||||
kLicenseResponseFormat, kLicenseStatusUnknownError, "");
|
||||
std::string mock_response = base::StringPrintf(
|
||||
kHttpResponseFormat, Base64Encode(mock_license_status).c_str());
|
||||
|
||||
|
@ -225,8 +258,10 @@ TEST_F(WidevineEncryptorSourceTest, NoRetryOnUnknownError) {
|
|||
.WillOnce(DoAll(SetArgPointee<2>(mock_response), Return(Status::OK)));
|
||||
|
||||
CreateWidevineEncryptorSource();
|
||||
EncryptionKey encryption_key;
|
||||
ASSERT_EQ(error::SERVER_ERROR,
|
||||
widevine_encryptor_source_->Initialize().error_code());
|
||||
widevine_encryptor_source_->GetKey(EncryptorSource::TRACK_TYPE_SD,
|
||||
&encryption_key).error_code());
|
||||
}
|
||||
|
||||
} // namespace media
|
||||
|
|
Loading…
Reference in New Issue