Parse and expose end-of-life flag.
Omaha update or noupdate response can include _key=value pairs with
arbitrary data. One of those key can be "_eol" with the one of the
values "supported", "security-only" or "eol" which notifies the device
the end-of-life status of the device with respect to updates. This
information is now exposed via GetEolStatus() to the client so it
can be properly displayed in the UI.
Bug: 27924505
TEST=Added unittest. Run `update_engine_client --eol_status` on link.
Change-Id: Icc15f25b4d0b19cc894f5afc52ac7c43c7818982
diff --git a/omaha_utils.cc b/omaha_utils.cc
new file mode 100644
index 0000000..6bd7525
--- /dev/null
+++ b/omaha_utils.cc
@@ -0,0 +1,57 @@
+//
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "update_engine/omaha_utils.h"
+
+#include <base/logging.h>
+
+namespace chromeos_update_engine {
+
+namespace {
+
+// The possible string values for the end-of-life status.
+const char kEolStatusSupported[] = "supported";
+const char kEolStatusSecurityOnly[] = "security-only";
+const char kEolStatusEol[] = "eol";
+
+} // namespace
+
+const char* EolStatusToString(EolStatus eol_status) {
+ switch (eol_status) {
+ case EolStatus::kSupported:
+ return kEolStatusSupported;
+ case EolStatus::kSecurityOnly:
+ return kEolStatusSecurityOnly;
+ case EolStatus::kEol:
+ return kEolStatusEol;
+ }
+ // Only reached if an invalid number is casted to |EolStatus|.
+ LOG(WARNING) << "Invalid EolStatus value: " << static_cast<int>(eol_status);
+ return kEolStatusSupported;
+}
+
+EolStatus StringToEolStatus(const std::string& eol_status) {
+ if (eol_status == kEolStatusSupported || eol_status.empty())
+ return EolStatus::kSupported;
+ if (eol_status == kEolStatusSecurityOnly)
+ return EolStatus::kSecurityOnly;
+ if (eol_status == kEolStatusEol)
+ return EolStatus::kEol;
+ LOG(WARNING) << "Invalid end-of-life attribute: " << eol_status;
+ return EolStatus::kSupported;
+}
+
+} // namespace chromeos_update_engine