/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 */

#include <sal/config.h>

#include <com/sun/star/lang/IllegalArgumentException.hpp>

#include <com/sun/star/security/AccessControlException.hpp>

#include <com/sun/star/system/SystemShellExecute.hpp>

#include <com/sun/star/system/SystemShellExecuteException.hpp>

#include <com/sun/star/system/SystemShellExecuteFlags.hpp>

#include <com/sun/star/uno/Reference.hxx>

#include <com/sun/star/uno/RuntimeException.hpp>

#include <comphelper/processfactory.hxx>

#include <rtl/ustring.hxx>

#include <sfx2/sfxresid.hxx>

#include <tools/urlobj.hxx>

#include <vcl/svapp.hxx>

#include <vcl/timer.hxx>

#include <vcl/vclenum.hxx>

#include <vcl/weld/MessageDialog.hxx>

#include <openuriexternally.hxx>

#include <comphelper/lok.hxx>

#include <LibreOfficeKit/LibreOfficeKitEnums.h>

#include <sfx2/viewsh.hxx>

#include <sfx2/strings.hrc>

namespace {

class URITools

{

private:

    Timer aOpenURITimer { "sfx2::openUriExternallyTimer" };

    OUString msURI;

    weld::Widget* mpDialogParent;

    bool mbHandleSystemShellExecuteException;

    DECL_LINK(onOpenURI, Timer*, void);

public:

    URITools(weld::Widget* pDialogParent)

        : mpDialogParent(pDialogParent)

        , mbHandleSystemShellExecuteException(false)

    {

    }

    void openURI(const OUString& sURI, bool bHandleSystemShellExecuteException);

};

}

void URITools::openURI(const OUString& sURI, bool bHandleSystemShellExecuteException)

{

    if (comphelper::LibreOfficeKit::isActive())

    {

        if (SfxViewShell* pViewShell = SfxViewShell::Current())

        {

            pViewShell->libreOfficeKitViewCallback(LOK_CALLBACK_HYPERLINK_CLICKED,

                                                   sURI.toUtf8());

        }

        delete this;

        return;

    }

    mbHandleSystemShellExecuteException = bHandleSystemShellExecuteException;

    msURI = sURI;

    // tdf#116305 Workaround: Use timer to bring browsers to the front

    aOpenURITimer.SetInvokeHandler(LINK(this, URITools, onOpenURI));

#ifdef _WIN32

    // 200ms seems to be the best compromise between responsiveness and success rate

    aOpenURITimer.SetTimeout(200);

#else

    aOpenURITimer.SetTimeout(0);

#endif

    aOpenURITimer.Start();

}

IMPL_LINK_NOARG(URITools, onOpenURI, Timer*, void)

{

    std::unique_ptr<URITools> guard(this);

    css::uno::Reference< css::system::XSystemShellExecute > exec(

        css::system::SystemShellExecute::create(comphelper::getProcessComponentContext()));

    for (sal_Int32 flags = css::system::SystemShellExecuteFlags::URIS_ONLY;;) {

        try {

            exec->execute(msURI, OUString(), flags);

        } catch (css::security::AccessControlException & e) {

            if (e.LackingPermission.hasValue() || flags == 0) {

                throw css::uno::RuntimeException(

                    "unexpected AccessControlException: " + e.Message);

            }

            SolarMutexGuard g;

            std::unique_ptr<weld::MessageDialog> eb(

                Application::CreateMessageDialog(

                    mpDialogParent, VclMessageType::Warning, VclButtonsType::YesNo,

                    SfxResId(STR_DANGEROUS_TO_OPEN)));

            eb->set_primary_text(eb->get_primary_text().replaceFirst("$(ARG1)", INetURLObject::decode(msURI, INetURLObject::DecodeMechanism::Unambiguous)));

            eb->set_default_response(RET_NO);

            if (eb->run() == RET_YES) {

                flags = 0;

                continue;

            }

        } catch (css::lang::IllegalArgumentException & e) {

            if (e.ArgumentPosition != 0) {

                throw css::uno::RuntimeException(

                    "unexpected IllegalArgumentException: " + e.Message);

            }

            SolarMutexGuard g;

            std::unique_ptr<weld::MessageDialog> eb(Application::CreateMessageDialog(mpDialogParent,

                                                                     VclMessageType::Warning, VclButtonsType::Ok,

                                                                     SfxResId(STR_NO_ABS_URI_REF)));

            eb->set_primary_text(eb->get_primary_text().replaceFirst("$(ARG1)", INetURLObject::decode(msURI, INetURLObject::DecodeMechanism::Unambiguous)));

            eb->run();

        } catch (css::system::SystemShellExecuteException & e) {

            if (!mbHandleSystemShellExecuteException) {

                throw;

            }

            SolarMutexGuard g;

            std::unique_ptr<weld::MessageDialog> eb(Application::CreateMessageDialog(mpDialogParent,

                                                                     VclMessageType::Warning, VclButtonsType::Ok,

                                                                     SfxResId(STR_NO_WEBBROWSER_FOUND)));

            eb->set_primary_text(

                eb->get_primary_text().replaceFirst("$(ARG1)", msURI)

                .replaceFirst("$(ARG2)", OUString::number(e.PosixError))

                .replaceFirst("$(ARG3)", e.Message));

                //TODO: avoid subsequent replaceFirst acting on previous replacement

            eb->run();

        }

        break;

    }

}

void sfx2::openUriExternally(const OUString& sURI, bool bHandleSystemShellExecuteException, weld::Widget* pDialogParent)

{

    URITools* uriTools = new URITools(pDialogParent);

    uriTools->openURI(sURI, bHandleSystemShellExecuteException);

} //-V773

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