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// Copyright (c) 2012 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/ssl_client_certificate_selector.h"
#import <SecurityInterface/SFChooseIdentityPanel.h>
#include <vector>
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#import "base/memory/scoped_nsobject.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/ssl/ssl_client_auth_observer.h"
#import "chrome/browser/ui/cocoa/constrained_window_mac.h"
#include "chrome/browser/ui/tab_contents/tab_contents.h"
#include "content/public/browser/browser_thread.h"
#include "grit/generated_resources.h"
#include "net/base/ssl_cert_request_info.h"
#include "net/base/x509_certificate.h"
#include "net/base/x509_util_mac.h"
#include "ui/base/l10n/l10n_util_mac.h"
using content::BrowserThread;
@interface SFChooseIdentityPanel (SystemPrivate)
// A system-private interface that dismisses a panel whose sheet was started by
// -beginSheetForWindow:modalDelegate:didEndSelector:contextInfo:identities:message:
// as though the user clicked the button identified by returnCode. Verified
// present in 10.5, 10.6, and 10.7.
- (void)_dismissWithCode:(NSInteger)code;
@end
namespace {
class NotificationProxy;
} // namespace
@interface SSLClientCertificateSelectorCocoa : NSObject {
@private
// The list of identities offered to the user.
scoped_nsobject<NSMutableArray> identities_;
// The corresponding list of certificates.
std::vector<scoped_refptr<net::X509Certificate> > certificates_;
// The currently open dialog.
ConstrainedWindow* window_;
// A C++ object to proxy SSLClientAuthObserver notifications to us.
scoped_ptr<NotificationProxy> observer_;
}
- (id)initWithObserver:(const net::HttpNetworkSession*)networkSession
certRequestInfo:(net::SSLCertRequestInfo*)certRequestInfo
callback:(const base::Callback<void(net::X509Certificate*)>&)callback;
- (void)onNotification;
- (void)displayDialog:(TabContents*)tabContents;
@end
namespace {
class ConstrainedSFChooseIdentityPanel
: public ConstrainedWindowMacDelegateSystemSheet {
public:
ConstrainedSFChooseIdentityPanel(SFChooseIdentityPanel* panel,
id delegate, SEL didEndSelector,
NSArray* identities, NSString* message)
: ConstrainedWindowMacDelegateSystemSheet(delegate, didEndSelector),
identities_([identities retain]),
message_([message retain]) {
set_sheet(panel);
}
virtual ~ConstrainedSFChooseIdentityPanel() {
}
// ConstrainedWindowMacDelegateSystemSheet implementation:
virtual void DeleteDelegate() {
// As required by ConstrainedWindowMacDelegate, close the sheet if
// it's still open.
if (is_sheet_open()) {
[sheet() _dismissWithCode:NSFileHandlingPanelCancelButton];
}
// Now that the panel has closed, release it. Note that the autorelease is
// needed. After this callback returns, the panel is still accessed, so a
// normal release crashes.
[sheet() autorelease];
delete this;
}
// SFChooseIdentityPanel's beginSheetForWindow: method has more arguments
// than the usual one. Also pass the panel through contextInfo argument
// because the callback has the wrong signature.
virtual NSArray* GetSheetParameters(id delegate, SEL didEndSelector) {
return [NSArray arrayWithObjects:
[NSNull null], // window, must be [NSNull null]
delegate,
[NSValue valueWithPointer:didEndSelector],
[NSValue valueWithPointer:sheet()],
identities_.get(),
message_.get(),
nil];
}
private:
scoped_nsobject<NSArray> identities_;
scoped_nsobject<NSString> message_;
DISALLOW_COPY_AND_ASSIGN(ConstrainedSFChooseIdentityPanel);
};
class NotificationProxy : public SSLClientAuthObserver {
public:
NotificationProxy(const net::HttpNetworkSession* network_session,
net::SSLCertRequestInfo* cert_request_info,
const base::Callback<void(net::X509Certificate*)>& callback,
SSLClientCertificateSelectorCocoa* controller)
: SSLClientAuthObserver(network_session, cert_request_info, callback),
controller_(controller) {
}
// SSLClientAuthObserver implementation:
virtual void OnCertSelectedByNotification() {
[controller_ onNotification];
}
private:
SSLClientCertificateSelectorCocoa* controller_;
};
} // namespace
namespace chrome {
void ShowSSLClientCertificateSelector(
TabContents* tabContents,
const net::HttpNetworkSession* network_session,
net::SSLCertRequestInfo* cert_request_info,
const base::Callback<void(net::X509Certificate*)>& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
SSLClientCertificateSelectorCocoa* selector =
[[[SSLClientCertificateSelectorCocoa alloc]
initWithObserver:network_session
certRequestInfo:cert_request_info
callback:callback] autorelease];
[selector displayDialog:tabContents];
}
} // namespace chrome
@implementation SSLClientCertificateSelectorCocoa
- (id)initWithObserver:(const net::HttpNetworkSession*)networkSession
certRequestInfo:(net::SSLCertRequestInfo*)certRequestInfo
callback:(const base::Callback<void(net::X509Certificate*)>&)callback {
DCHECK(networkSession);
DCHECK(certRequestInfo);
if ((self = [super init])) {
window_ = NULL;
observer_.reset(new NotificationProxy(
networkSession, certRequestInfo, callback, self));
}
return self;
}
- (void)sheetDidEnd:(NSWindow*)parent
returnCode:(NSInteger)returnCode
context:(void*)context {
DCHECK(context);
SFChooseIdentityPanel* panel = static_cast<SFChooseIdentityPanel*>(context);
net::X509Certificate* cert = NULL;
if (returnCode == NSFileHandlingPanelOKButton) {
NSUInteger index = [identities_ indexOfObject:(id)[panel identity]];
if (index != NSNotFound)
cert = certificates_[index];
else
NOTREACHED();
}
// Finally, tell the backend which identity (or none) the user selected.
observer_->StopObserving();
observer_->CertificateSelected(cert);
// Close the constrained window.
DCHECK(window_);
window_->CloseConstrainedWindow();
}
- (void)onNotification {
window_->CloseConstrainedWindow();
}
- (void)displayDialog:(TabContents*)tabContents {
DCHECK(!window_);
// Create an array of CFIdentityRefs for the certificates:
size_t numCerts = observer_->cert_request_info()->client_certs.size();
identities_.reset([[NSMutableArray alloc] initWithCapacity:numCerts]);
for (size_t i = 0; i < numCerts; ++i) {
SecCertificateRef cert;
cert = observer_->cert_request_info()->client_certs[i]->os_cert_handle();
SecIdentityRef identity;
if (SecIdentityCreateWithCertificate(NULL, cert, &identity) == noErr) {
[identities_ addObject:(id)identity];
CFRelease(identity);
certificates_.push_back(observer_->cert_request_info()->client_certs[i]);
}
}
// Get the message to display:
NSString* title = l10n_util::GetNSString(IDS_CLIENT_CERT_DIALOG_TITLE);
NSString* message = l10n_util::GetNSStringF(
IDS_CLIENT_CERT_DIALOG_TEXT,
ASCIIToUTF16(observer_->cert_request_info()->host_and_port));
// Create and set up a system choose-identity panel.
SFChooseIdentityPanel* panel = [[SFChooseIdentityPanel alloc] init];
[panel setInformativeText:message];
[panel setDefaultButtonTitle:l10n_util::GetNSString(IDS_OK)];
[panel setAlternateButtonTitle:l10n_util::GetNSString(IDS_CANCEL)];
SecPolicyRef sslPolicy;
if (net::x509_util::CreateSSLClientPolicy(&sslPolicy) == noErr) {
[panel setPolicies:(id)sslPolicy];
CFRelease(sslPolicy);
}
window_ = new ConstrainedWindowMac(
tabContents,
new ConstrainedSFChooseIdentityPanel(
panel, self,
@selector(sheetDidEnd:returnCode:context:),
identities_, title));
observer_->StartObserving();
// Note: SFChooseIdentityPanel does not take a reference to itself while the
// sheet is open. ConstrainedSFChooseIdentityPanel will release ownership
// on destruction.
}
@end
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