Prevent renewal license when can_renew is set to false

[ Merge of https://go/wvgerrit/15670 ]

b/18459002

Change-Id: Idad43a621750ff01aee61e8d972957f364a698cf

libwvdrmengine/cdm/core/include/policy_engine.h

@@ -80,6 +80,8 @@ class PolicyEngine {
 
   bool IsLicenseOrPlaybackDurationExpired(int64_t current_time);
 
+  bool CanRenew() { return policy_.can_renew(); }
+
  private:
   friend class PolicyEngineTest;
 

libwvdrmengine/cdm/core/include/wv_cdm_types.h

@@ -203,6 +203,7 @@ enum CdmResponseType {
   LICENSE_REQUEST_SIGNING_ERROR,
   EMPTY_LICENSE_REQUEST,
   SECURE_BUFFER_REQUIRED,
+  LICENSE_RENEWAL_PROHIBITED,
 };
 
 enum CdmKeyStatus {

libwvdrmengine/cdm/core/src/license.cpp

@@ -319,6 +319,11 @@ CdmResponseType CdmLicense::PrepareKeyUpdateRequest(
     return INVALID_PARAMETERS_LIC_2;
   }
 
+  if (is_renewal && !policy_engine_->CanRenew()) {
+    LOGE("CdmLicense::PrepareKeyUpdateRequest: license renewal prohibited");
+    return LICENSE_RENEWAL_PROHIBITED;
+  }
+
   LicenseRequest license_request;
   if (is_renewal)
     license_request.set_type(LicenseRequest::RENEWAL);

libwvdrmengine/cdm/core/test/test_printers.cpp

@@ -339,6 +339,8 @@ void PrintTo(const enum CdmResponseType& value, ::std::ostream* os) {
       break;
     case EMPTY_LICENSE_REQUEST: *os                << "EMPTY_LICENSE_REQUEST";
       break;
+    case LICENSE_RENEWAL_PROHIBITED: *os           << "LICENSE_RENEWAL_PROHIBITED";
+      break;
     default:
       *os                                          << "Unknown CdmResponseType";
       break;