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Support Offline Licenses

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Bug: 8621588

Merge of the following CLs from the Widevine CDM repository:

https://widevine-internal-review.googlesource.com/#/c/5602/
https://widevine-internal-review.googlesource.com/#/c/5431/
https://widevine-internal-review.googlesource.com/#/c/5660/

Change-Id: If37940e2535e1a1eca95e4394d8cf9bf689e9c3a
This commit is contained in:
Jeff Tinker
2013-05-15 19:23:36 -07:00
parent 898d870126
commit 1b295f4c81
30 changed files with 1647 additions and 471 deletions
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36
libwvdrmengine/cdm/core/include/cdm_session.h
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@@ -19,14 +19,16 @@ namespace wvcdm {
class CdmSession {
public:
CdmSession() : session_id_(GenerateSessionId()), license_received_(false),
reinitialize_session_(false) {}
reinitialize_session_(false), license_type_(kLicenseTypeStreaming) {}
~CdmSession() {}
CdmResponseType Init();
CdmResponseType ReInit();
bool DestroySession();
CdmResponseType RestoreOfflineSession(const CdmKeySetId& key_set_id,
const CdmLicenseType license_type);
void set_key_system(const CdmKeySystem& ksystem) { key_system_ = ksystem; }
const CdmKeySystem& key_system() { return key_system_; }
@@ -37,12 +39,13 @@ class CdmSession {
CdmResponseType GenerateKeyRequest(const CdmInitData& init_data,
const CdmLicenseType license_type,
CdmAppParameterMap& app_parameters,
const CdmAppParameterMap& app_parameters,
CdmKeyMessage* key_request,
std::string* server_url);
// AddKey() - Accept license response and extract key info.
CdmResponseType AddKey(const CdmKeyResponse& key_response);
CdmResponseType AddKey(const CdmKeyResponse& key_response,
CdmKeySetId* key_set_id);
// CancelKeyRequest() - Cancel session.
CdmResponseType CancelKeyRequest();
@@ -74,19 +77,31 @@ class CdmSession {
// RenewKey() - Accept renewal response and update key info.
CdmResponseType RenewKey(const CdmKeyResponse& key_response);
// License release
// GenerateReleaseRequest() - Construct valid release request for the current
// session keys.
CdmResponseType GenerateReleaseRequest(CdmKeyMessage* key_request,
std::string* server_url);
// RenewKey() - Accept renewal response and update key info.
CdmResponseType ReleaseKey(const CdmKeyResponse& key_response);
bool IsKeyValid(const KeyId& key_id);
bool AttachEventListener(WvCdmEventListener* listener);
bool DetachEventListener(WvCdmEventListener* listener);
void OnTimerEvent();
void OnKeyReleaseEvent(CdmKeySetId key_set_id);
private:
// Generate unique ID for each new session.
CdmSessionId GenerateSessionId();
CdmKeySetId GenerateKeySetId(CdmInitData& pssh_data);
bool LoadDeviceCertificate(std::string* cert, std::string* wrapped_key);
bool StoreLicense(bool active);
// instance variables
const CdmSessionId session_id_;
@@ -97,6 +112,19 @@ class CdmSession {
bool license_received_;
bool reinitialize_session_;
CdmLicenseType license_type_;
// license type offline related information
CdmInitData offline_pssh_data_;
CdmKeyMessage offline_key_request_;
CdmKeyResponse offline_key_response_;
CdmKeyMessage offline_key_renewal_request_;
CdmKeyResponse offline_key_renewal_response_;
std::string offline_release_server_url_;
// license type release and offline related information
CdmKeySetId key_set_id_;
KeyId key_id_;
// Used for certificate based licensing