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Save and retrieve key information from licenses and usage records

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[ Merge of http://go/wvgerrit/120512 ]

Wrapped DRM private keys are loaded when a key request is made or when
offline/usage sessions are restored. They were earlier loaded when a
session was opened.

For streaming sessions, key material will be fetched from the default
or legacy certificates and loaded when a key request is made.

For offline and usage sessions, key material may be retrieved from
license or usage records if available. If not available, information
associated with the legacy certificate will be loaded.

Certificate and wrapped keys are also written out when an offline
license or usage record is saved.

Bug: 169740403
Test: WV unit/integration tests
      WvCdmRequestLicenseTest.ProvisioningWithExpiringCertTest
      WvCdmRequestLicenseTest.StreamingWithExpiringCertTest
      WvCdmRequestLicenseTest.RestoreOfflineKeysWithExpiringCertTest
Change-Id: Ice0154c632170c46da171cbbb23a97380c610a98
This commit is contained in:
Rahul Frias
2021-03-23 13:06:55 -07:00
parent 30ebbefb40
commit e538c96131
9 changed files with 412 additions and 253 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
libwvdrmengine/cdm/test/wv_cdm_metrics_test.cpp
View File

@@ -103,7 +103,7 @@ TEST_F(WvContentDecryptionModuleMetricsTest, EngineAndSessionMetrics) {
wvcdm::CdmKeySystem key_system("com.widevine");
Unprovision(kDefaultCdmIdentifier);
// Openning the session will fail with NEEDS_PROVISIONING error. But it will
// Opening the session will fail with NEEDS_PROVISIONING error. But it will
// still create some session-level stats.
EXPECT_EQ(CdmResponseType::NEED_PROVISIONING,
decryptor_.OpenSession(key_system, nullptr, kDefaultCdmIdentifier,
@@ -133,11 +133,6 @@ TEST_F(WvContentDecryptionModuleMetricsTest, EngineAndSessionMetrics) {
// Validate a session-level metric.
ASSERT_THAT(metrics.session_metrics().size(), Eq(1));
EXPECT_THAT(
metrics.session_metrics(0).cdm_session_life_span_ms().double_value(),
Gt(0.0))
<< "Unexpected failure with session_metrics: "
<< wvcdm::b2a_hex(serialized_metrics);
}
TEST_F(WvContentDecryptionModuleMetricsTest,
@@ -190,11 +185,6 @@ TEST_F(WvContentDecryptionModuleMetricsTest,
ASSERT_THAT(metrics.session_metrics().size(), Eq(i + 1))
<< "Unexpected failure with session_metrics: "
<< wvcdm::b2a_hex(serialized_metrics);
EXPECT_THAT(
metrics.session_metrics(0).cdm_session_life_span_ms().double_value(),
Gt(0.0))
<< "Unexpected failure with session_metrics: "
<< wvcdm::b2a_hex(serialized_metrics);
}
}