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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;
namespace {
void CreateWithSlot(chrome::CryptoModulePasswordReason reason,
const net::HostPortPair& server,
const base::Callback<void(
scoped_ptr<ChromeNSSCryptoModuleDelegate>)>& callback,
crypto::ScopedPK11Slot slot) {
if (!slot) {
callback.Run(scoped_ptr<ChromeNSSCryptoModuleDelegate>());
return;
}
callback.Run(scoped_ptr<ChromeNSSCryptoModuleDelegate>(
new ChromeNSSCryptoModuleDelegate(reason, server, slot.Pass())));
}
} // namespace
ChromeNSSCryptoModuleDelegate::ChromeNSSCryptoModuleDelegate(
chrome::CryptoModulePasswordReason reason,
const net::HostPortPair& server,
crypto::ScopedPK11Slot slot)
: reason_(reason),
server_(server),
event_(false, false),
cancelled_(false),
slot_(slot.Pass()) {
}
ChromeNSSCryptoModuleDelegate::~ChromeNSSCryptoModuleDelegate() {}
// static
void ChromeNSSCryptoModuleDelegate::CreateForResourceContext(
chrome::CryptoModulePasswordReason reason,
const net::HostPortPair& server,
content::ResourceContext* context,
const base::Callback<void(scoped_ptr<ChromeNSSCryptoModuleDelegate>)>&
callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DCHECK(!callback.is_null());
base::Callback<void(crypto::ScopedPK11Slot)> get_slot_callback =
base::Bind(&CreateWithSlot, reason, server, callback);
crypto::ScopedPK11Slot slot =
GetPrivateNSSKeySlotForResourceContext(context, get_slot_callback);
if (slot)
get_slot_callback.Run(slot.Pass());
}
// 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_CURRENTLY_ON(BrowserThread::UI);
ShowCryptoModulePasswordDialog(
slot_name,
retry,
reason_,
server_.host(),
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();
}
crypto::CryptoModuleBlockingPasswordDelegate*
CreateCryptoModuleBlockingPasswordDelegate(
chrome::CryptoModulePasswordReason reason,
const net::HostPortPair& server) {
// Returns a ChromeNSSCryptoModuleDelegate without Pk11Slot. Since it is only
// being used as a CryptoModuleBlockingDialogDelegate, using a slot handle is
// unnecessary.
return new ChromeNSSCryptoModuleDelegate(
reason, server, crypto::ScopedPK11Slot());
}
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