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** ensure the GNU Lesser General Public License version 3 requirements
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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.Chromium file.

#include "resource_dispatcher_host_delegate_qt.h"

#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/resource_dispatcher_host.h"
#include "content/public/browser/resource_request_info.h"
#include "net/url_request/url_request.h"

#include "authentication_dialog_controller.h"
#include "authentication_dialog_controller_p.h"
#include "type_conversion.h"
#include "web_contents_view_qt.h"

namespace QtWebEngineCore {

ResourceDispatcherHostLoginDelegateQt::ResourceDispatcherHostLoginDelegateQt(net::AuthChallengeInfo *authInfo, net::URLRequest *request)
    : m_authInfo(authInfo)
    , m_request(request)
    , m_url(request->url())
{
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
    const content::ResourceRequestInfo *requestInfo = content::ResourceRequestInfo::ForRequest(request);
    Q_ASSERT(requestInfo);

    content::BrowserThread::PostTask(
            content::BrowserThread::UI, FROM_HERE,
            base::Bind(&ResourceDispatcherHostLoginDelegateQt::triggerDialog,
                       this,
                       requestInfo->GetWebContentsGetterForRequest()));
}

ResourceDispatcherHostLoginDelegateQt::~ResourceDispatcherHostLoginDelegateQt()
{
    Q_ASSERT(m_dialogController.isNull());
    // We must have called ClearLoginDelegateForRequest if we didn't receive an OnRequestCancelled.
    Q_ASSERT(!m_request);
}

void ResourceDispatcherHostLoginDelegateQt::OnRequestCancelled()
{
    destroy();
    // TODO: this should close native dialog, since page can be navigated somewhere else
}

QUrl ResourceDispatcherHostLoginDelegateQt::url() const
{
    return toQt(m_url);
}

QString ResourceDispatcherHostLoginDelegateQt::realm() const
{
    return QString::fromStdString(m_authInfo->realm);
}

QString ResourceDispatcherHostLoginDelegateQt::host() const
{
    return QString::fromStdString(m_authInfo->challenger.host());
}

bool ResourceDispatcherHostLoginDelegateQt::isProxy() const
{
    return m_authInfo->is_proxy;
}

void ResourceDispatcherHostLoginDelegateQt::triggerDialog(const content::ResourceRequestInfo::WebContentsGetter &webContentsGetter)
{
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
    content::WebContentsImpl *webContents =
            static_cast<content::WebContentsImpl *>(webContentsGetter.Run());
    if (!webContents)
        return;
    WebContentsAdapterClient *client = WebContentsViewQt::from(webContents->GetView())->client();

    AuthenticationDialogControllerPrivate *dialogControllerData = new AuthenticationDialogControllerPrivate(this);
    m_dialogController.reset(new AuthenticationDialogController(dialogControllerData));
    client->authenticationRequired(m_dialogController);
}

void ResourceDispatcherHostLoginDelegateQt::sendAuthToRequester(bool success, const QString &user, const QString &password)
{
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
    if (!m_request)
        return;

    if (success)
        m_request->SetAuth(net::AuthCredentials(toString16(user), toString16(password)));
    else
        m_request->CancelAuth();
    content::ResourceDispatcherHost::Get()->ClearLoginDelegateForRequest(m_request);

    destroy();
}

void ResourceDispatcherHostLoginDelegateQt::destroy()
{
    m_dialogController.reset();
    m_request = nullptr;
}

static void LaunchURL(const GURL& url, int render_process_id,
                      const content::ResourceRequestInfo::WebContentsGetter& web_contents_getter,
                      ui::PageTransition page_transition, bool is_main_frame, bool has_user_gesture)
{
    Q_UNUSED(render_process_id);
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
    content::WebContents* webContents = web_contents_getter.Run();
    if (!webContents)
        return;
    WebContentsDelegateQt *contentsDelegate = static_cast<WebContentsDelegateQt*>(webContents->GetDelegate());
    contentsDelegate->launchExternalURL(toQt(url), page_transition, is_main_frame, has_user_gesture);
}


bool ResourceDispatcherHostDelegateQt::HandleExternalProtocol(const GURL& url, content::ResourceRequestInfo* info)
{
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));

    content::BrowserThread::PostTask(
        content::BrowserThread::UI,
        FROM_HERE,
        base::Bind(&LaunchURL, url,
                   info->GetChildID(),
                   info->GetWebContentsGetterForRequest(),
                   info->GetPageTransition(),
                   info->IsMainFrame(),
                   info->HasUserGesture())
    );
    return true;
}

content::ResourceDispatcherHostLoginDelegate *ResourceDispatcherHostDelegateQt::CreateLoginDelegate(net::AuthChallengeInfo *authInfo, net::URLRequest *request)
{
    // ResourceDispatcherHostLoginDelegateQt is ref-counted and will be released after we called ClearLoginDelegateForRequest.
    return new ResourceDispatcherHostLoginDelegateQt(authInfo, request);
}

} // namespace QtWebEngineCore
