Implementation of Device End of Life Notification

chrome/browser/ui/webui/help/help_handler.cc

Index: chrome/browser/ui/webui/help/help_handler.cc
diff --git a/chrome/browser/ui/webui/help/help_handler.cc b/chrome/browser/ui/webui/help/help_handler.cc
index 3fd9934437ec26d1ef095d98a8ba52a9efe9adea..e8d862165685ccfa960e3d0e13e6965e6ff6e125 100644
--- a/chrome/browser/ui/webui/help/help_handler.cc
+++ b/chrome/browser/ui/webui/help/help_handler.cc
@@ -9,6 +9,7 @@
 #include <string>
 
 #include "ash/system/chromeos/devicetype_utils.h"
+#include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ -73,6 +74,7 @@
 #include "chromeos/system/statistics_provider.h"
 #include "components/prefs/pref_service.h"
 #include "components/user_manager/user_manager.h"
+#include "third_party/cros_system_api/dbus/update_engine/dbus-constants.h"
 #endif
 
 using base::ListValue;
@@ -205,6 +207,19 @@ std::string ReadRegulatoryLabelText(const base::FilePath& path) {
   return std::string();
 }
 
+// Returns messages that applys to this eol status
+base::string16 GetEolMessage(int status) {
+  base::string16 eol_link = l10n_util::GetStringFUTF16(
+      IDS_EOL_MORE_INFO_LINK, base::ASCIIToUTF16(chrome::kEolNotificationURL),
+      base::ASCIIToUTF16(chrome::kEolNotificationURL));
+  if (status == update_engine::EndOfLifeStatus::kSecurityOnly) {
+    return l10n_util::GetStringUTF16(IDS_ABOUT_PAGE_EOL_SECURITY_ONLY) +
+           eol_link;
+  } else {
+    return l10n_util::GetStringUTF16(IDS_ABOUT_PAGE_EOL_EOL) + eol_link;

[xiyuan, 2016/06/16 22:41:28]

Cancat strings like this is not i18n friendly because translators would have no
way to move the link around. We should make templates and use GetStringFUTF16 to
format it like you did for the link.

[xiaoyinh(OOO Sep 11-29), 2016/06/17 04:07:35]

Done.

+  }
+}
+
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace
@@ -516,6 +531,12 @@ void HelpHandler::OnPageLoaded(const base::ListValue* args) {
   version_updater_->GetChannel(false,
       base::Bind(&HelpHandler::OnTargetChannel, weak_factory_.GetWeakPtr()));
 
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          chromeos::switches::kEnableEolNotification)) {
+    version_updater_->GetEolStatus(
+        base::Bind(&HelpHandler::OnEolStatus, weak_factory_.GetWeakPtr()));
+  }
+
   base::PostTaskAndReplyWithResult(
       content::BrowserThread::GetBlockingPool(),
       FROM_HERE,
@@ -742,4 +763,22 @@ void HelpHandler::OnRegulatoryLabelTextRead(const std::string& text) {
       base::StringValue(base::CollapseWhitespaceASCII(text, true)));
 }
 
+void HelpHandler::OnEolStatus(const int status) {
+  if (status == update_engine::EndOfLifeStatus::kSupported ||
+      IsEnterpriseManaged()) {
+    return;
+  }
+
+  if (status == update_engine::EndOfLifeStatus::kSupported) {
+    web_ui()->CallJavascriptFunctionUnsafe(
+        "help.HelpPage.updateEolMessage", base::StringValue("device_supported"),
+        base::StringValue(""));
+  } else {
+    base::string16 message = GetEolMessage(status);
+    web_ui()->CallJavascriptFunctionUnsafe(
+        "help.HelpPage.updateEolMessage", base::StringValue("device_endoflife"),
+        base::StringValue(message));
+  }
+}
+
 #endif  // defined(OS_CHROMEOS)