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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/crypto_module_delegate_nss.h"
#include "base/basictypes.h"
#include "base/bind.h"
#include "chrome/browser/net/nss_context.h"
#include "content/public/browser/browser_thread.h"
using content::BrowserThread;
ChromeNSSCryptoModuleDelegate::ChromeNSSCryptoModuleDelegate(
chrome::CryptoModulePasswordReason reason,
const std::string& server)
: reason_(reason),
server_(server),
event_(false, false),
cancelled_(false) {}
ChromeNSSCryptoModuleDelegate::~ChromeNSSCryptoModuleDelegate() {}
bool ChromeNSSCryptoModuleDelegate::InitializeSlot(
content::ResourceContext* context,
const base::Closure& initialization_complete_callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
base::Callback<void(crypto::ScopedPK11Slot)> get_slot_callback;
if (!initialization_complete_callback.is_null())
get_slot_callback = base::Bind(&ChromeNSSCryptoModuleDelegate::DidGetSlot,
// Caller is responsible for keeping |this|
// alive until the callback is run.
base::Unretained(this),
initialization_complete_callback);
slot_ = GetPrivateNSSKeySlotForResourceContext(context, get_slot_callback);
return slot_.get() != NULL;
}
// TODO(mattm): allow choosing which slot to generate and store the key.
crypto::ScopedPK11Slot ChromeNSSCryptoModuleDelegate::RequestSlot() {
return slot_.Pass();
}
std::string ChromeNSSCryptoModuleDelegate::RequestPassword(
const std::string& slot_name,
bool retry,
bool* cancelled) {
DCHECK(!event_.IsSignaled());
event_.Reset();
if (BrowserThread::PostTask(
BrowserThread::UI,
FROM_HERE,
base::Bind(&ChromeNSSCryptoModuleDelegate::ShowDialog,
// This method blocks on |event_| until the task completes,
// so there's no need to ref-count.
base::Unretained(this),
slot_name,
retry))) {
event_.Wait();
}
*cancelled = cancelled_;
return password_;
}
void ChromeNSSCryptoModuleDelegate::ShowDialog(const std::string& slot_name,
bool retry) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
ShowCryptoModulePasswordDialog(
slot_name,
retry,
reason_,
server_,
NULL, // TODO(mattm): Supply parent window.
base::Bind(&ChromeNSSCryptoModuleDelegate::GotPassword,
// RequestPassword is blocked on |event_| until GotPassword is
// called, so there's no need to ref-count.
base::Unretained(this)));
}
void ChromeNSSCryptoModuleDelegate::GotPassword(const std::string& password) {
if (!password.empty())
password_ = password;
else
cancelled_ = true;
event_.Signal();
}
void ChromeNSSCryptoModuleDelegate::DidGetSlot(const base::Closure& callback,
crypto::ScopedPK11Slot slot) {
slot_ = slot.Pass();
callback.Run();
}
crypto::CryptoModuleBlockingPasswordDelegate*
CreateCryptoModuleBlockingPasswordDelegate(
chrome::CryptoModulePasswordReason reason,
const std::string& server) {
// Returns a ChromeNSSCryptoModuleDelegate without calling InitializeSlot.
// Since it is only being used as a CreateCryptoModuleBlockingDialogDelegate,
// initializing the slot handle is unnecessary.
return new ChromeNSSCryptoModuleDelegate(reason, server);
}
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