chrome/browser/ui/webui/chromeos/cryptohome_web_ui_handler.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/webui/chromeos/cryptohome_web_ui_handler.h"
   6
   7 #include "base/bind.h"
   8 #include "base/values.h"
   9 #include "chromeos/dbus/cryptohome_client.h"
  10 #include "chromeos/dbus/dbus_thread_manager.h"
  11 #include "content/public/browser/browser_thread.h"
  12 #include "content/public/browser/web_ui.h"
  13 #include "crypto/nss_util.h"
  14
  15 using content::BrowserThread;
  16
  17 namespace chromeos {
  18
  19 CryptohomeWebUIHandler::CryptohomeWebUIHandler() : weak_ptr_factory_(this) {}
  20
  21 CryptohomeWebUIHandler::~CryptohomeWebUIHandler() {}
  22
  23 void CryptohomeWebUIHandler::RegisterMessages() {
  24   web_ui()->RegisterMessageCallback(
  25       "pageLoaded",
  26       base::Bind(&CryptohomeWebUIHandler::OnPageLoaded,
  27                  weak_ptr_factory_.GetWeakPtr()));
  28 }
  29
  30 void CryptohomeWebUIHandler::OnPageLoaded(const base::ListValue* args) {
  31   CryptohomeClient* cryptohome_client =
  32       DBusThreadManager::Get()->GetCryptohomeClient();
  33
  34   cryptohome_client->IsMounted(GetCryptohomeBoolCallback("is-mounted"));
  35   cryptohome_client->TpmIsReady(GetCryptohomeBoolCallback("tpm-is-ready"));
  36   cryptohome_client->TpmIsEnabled(GetCryptohomeBoolCallback("tpm-is-enabled"));
  37   cryptohome_client->TpmIsOwned(GetCryptohomeBoolCallback("tpm-is-owned"));
  38   cryptohome_client->TpmIsBeingOwned(
  39       GetCryptohomeBoolCallback("tpm-is-being-owned"));
  40   cryptohome_client->Pkcs11IsTpmTokenReady(
  41       GetCryptohomeBoolCallback("pkcs11-is-tpm-token-ready"));
  42
  43   BrowserThread::PostTaskAndReplyWithResult(
  44       BrowserThread::IO,
  45       FROM_HERE,
  46       base::Bind(&crypto::IsTPMTokenReady, base::Closure()),
  47       base::Bind(&CryptohomeWebUIHandler::DidGetNSSUtilInfoOnUIThread,
  48                  weak_ptr_factory_.GetWeakPtr()));
  49 }
  50
  51 void CryptohomeWebUIHandler::DidGetNSSUtilInfoOnUIThread(
  52     bool is_tpm_token_ready) {
  53   DCHECK_CURRENTLY_ON(BrowserThread::UI);
  54
  55   base::FundamentalValue is_tpm_token_ready_value(is_tpm_token_ready);
  56   SetCryptohomeProperty("is-tpm-token-ready", is_tpm_token_ready_value);
  57 }
  58
  59 BoolDBusMethodCallback CryptohomeWebUIHandler::GetCryptohomeBoolCallback(
  60     const std::string& destination_id) {
  61   return base::Bind(&CryptohomeWebUIHandler::OnCryptohomeBoolProperty,
  62                     weak_ptr_factory_.GetWeakPtr(),
  63                     destination_id);
  64 }
  65
  66 void CryptohomeWebUIHandler::OnCryptohomeBoolProperty(
  67     const std::string& destination_id,
  68     DBusMethodCallStatus call_status,
  69     bool value) {
  70   if (call_status != DBUS_METHOD_CALL_SUCCESS)
  71     value = false;
  72   base::FundamentalValue fundamental_value(value);
  73   SetCryptohomeProperty(destination_id, fundamental_value);
  74 }
  75
  76 void CryptohomeWebUIHandler::SetCryptohomeProperty(
  77     const std::string& destination_id,
  78     const base::Value& value) {
  79   base::StringValue destination_id_value(destination_id);
  80   web_ui()->CallJavascriptFunction(
  81       "SetCryptohomeProperty", destination_id_value, value);
  82 }
  83
  84 }  // namespace chromeos