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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#include "sal/config.h"

#include <cstring>

#include "rtl/process.h"
#include "rtl/bootstrap.hxx"
#include "rtl/random.h"
#include "rtl/string.hxx"
#include "rtl/ustrbuf.hxx"
#include "rtl/uri.hxx"
#include "osl/diagnose.h"
#include "osl/file.hxx"
#include "osl/security.hxx"
#include "osl/thread.hxx"

#include "cppuhelper/bootstrap.hxx"
#include "cppuhelper/findsofficepath.h"

#include "com/sun/star/uno/XComponentContext.hpp"

#include "com/sun/star/bridge/UnoUrlResolver.hpp"
#include "com/sun/star/bridge/XUnoUrlResolver.hpp"

#include "macro_expander.hxx"

#define OUSTR(x) ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(x) )
#define ARLEN(x) sizeof (x) / sizeof *(x)


using namespace ::rtl;
using namespace ::osl;
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;

namespace cppu
{

BootstrapException::BootstrapException()
{
}

BootstrapException::BootstrapException( const ::rtl::OUString & rMessage )
    :m_aMessage( rMessage )
{
}

BootstrapException::BootstrapException( const BootstrapException & e )
{
    m_aMessage = e.m_aMessage;
}

BootstrapException::~BootstrapException()
{
}

BootstrapException & BootstrapException::operator=( const BootstrapException & e )
{
    m_aMessage = e.m_aMessage;
    return *this;
}

const ::rtl::OUString & BootstrapException::getMessage() const
{
    return m_aMessage;
}

Reference< XComponentContext > SAL_CALL bootstrap()
{
    Reference< XComponentContext > xRemoteContext;

    try
    {
        char const * p1 = cppuhelper_detail_findSofficePath();
        if (p1 == NULL) {
            throw BootstrapException(
                OUSTR("no soffice installation found!"));
        }
        rtl::OUString p2;
        if (!rtl_convertStringToUString(
                &p2.pData, p1, std::strlen(p1), osl_getThreadTextEncoding(),
                (RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR |
                 RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR |
                 RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR)))
        {
            throw BootstrapException(
                OUSTR("bad characters in soffice installation path!"));
        }
        OUString path;
        if (osl::FileBase::getFileURLFromSystemPath(p2, path) !=
            osl::FileBase::E_None)
        {
            throw BootstrapException(
                OUSTR("cannot convert soffice installation path to URL!"));
        }
        if (!path.isEmpty() && path[path.getLength() - 1] != '/') {
            path += OUSTR("/");
        }

        OUString uri;
        if (!Bootstrap::get(OUSTR("URE_BOOTSTRAP"), uri)) {
            Bootstrap::set(
                OUSTR("URE_BOOTSTRAP"),
                Bootstrap::encode(path + OUSTR(SAL_CONFIGFILE("fundamental"))));
        }

        // create default local component context
        Reference< XComponentContext > xLocalContext(
            defaultBootstrap_InitialComponentContext() );
        if ( !xLocalContext.is() )
            throw BootstrapException( OUSTR( "no local component context!" ) );

        // create a random pipe name
        rtlRandomPool hPool = rtl_random_createPool();
        if ( hPool == 0 )
            throw BootstrapException( OUSTR( "cannot create random pool!" ) );
        sal_uInt8 bytes[ 16 ];
        if ( rtl_random_getBytes( hPool, bytes, ARLEN( bytes ) )
            != rtl_Random_E_None )
            throw BootstrapException( OUSTR( "random pool error!" ) );
        rtl_random_destroyPool( hPool );
        ::rtl::OUStringBuffer buf;
        buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "uno" ) );
        for ( sal_uInt32 i = 0; i < ARLEN( bytes ); ++i )
            buf.append( static_cast< sal_Int32 >( bytes[ i ] ) );
        OUString sPipeName( buf.makeStringAndClear() );

        // accept string
        OSL_ASSERT( buf.getLength() == 0 );
        buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "--accept=pipe,name=" ) );
        buf.append( sPipeName );
        buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( ";urp;" ) );

        // arguments
        OUString args [] = {
            OUSTR( "--nologo" ),
            OUSTR( "--nodefault" ),
            OUSTR( "--norestore" ),
            OUSTR( "--nocrashreport" ),
            OUSTR( "--nolockcheck" ),
            buf.makeStringAndClear()
        };
        rtl_uString * ar_args [] = {
            args[ 0 ].pData,
            args[ 1 ].pData,
            args[ 2 ].pData,
            args[ 3 ].pData,
            args[ 4 ].pData,
            args[ 5 ].pData
        };
        ::osl::Security sec;

        // start office process
        oslProcess hProcess = 0;
        oslProcessError rc = osl_executeProcess(
            (path + OUSTR("soffice")).pData, ar_args, ARLEN( ar_args ),
            osl_Process_DETACHED,
            sec.getHandle(),
            0, // => current working dir
            0, 0, // => no env vars
            &hProcess );
        switch ( rc )
        {
            case osl_Process_E_None:
                osl_freeProcessHandle( hProcess );
                break;
            case osl_Process_E_NotFound:
                throw BootstrapException( OUSTR( "image not found!" ) );
            case osl_Process_E_TimedOut:
                throw BootstrapException( OUSTR( "timout occurred!" ) );
            case osl_Process_E_NoPermission:
                throw BootstrapException( OUSTR( "permission denied!" ) );
            case osl_Process_E_Unknown:
                throw BootstrapException( OUSTR( "unknown error!" ) );
            case osl_Process_E_InvalidError:
            default:
                throw BootstrapException( OUSTR( "unmapped error!" ) );
        }

        // create a URL resolver
        Reference< bridge::XUnoUrlResolver > xUrlResolver(
            bridge::UnoUrlResolver::create( xLocalContext ) );

        // connection string
        OSL_ASSERT( buf.getLength() == 0 );
        buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "uno:pipe,name=" ) );
        buf.append( sPipeName );
        buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(
            ";urp;StarOffice.ComponentContext" ) );
        OUString sConnectString( buf.makeStringAndClear() );

        // wait until office is started
        for ( ; ; )
        {
            try
            {
                // try to connect to office
                xRemoteContext.set(
                    xUrlResolver->resolve( sConnectString ), UNO_QUERY_THROW );
                break;
            }
            catch ( connection::NoConnectException & )
            {
                // wait 500 ms, then try to connect again
                TimeValue tv = { 0 /* secs */, 500000000 /* nanosecs */ };
                ::osl::Thread::wait( tv );
            }
        }
    }
    catch ( Exception & e )
    {
        throw BootstrapException(
            OUSTR( "unexpected UNO exception caught: " ) + e.Message );
    }

    return xRemoteContext;
}

OUString bootstrap_expandUri(OUString const & uri) {
    static char const PREFIX[] = "vnd.sun.star.expand:";
    return uri.matchAsciiL(RTL_CONSTASCII_STRINGPARAM(PREFIX))
        ? cppuhelper::detail::expandMacros(
            rtl::Uri::decode(
                uri.copy(RTL_CONSTASCII_LENGTH(PREFIX)),
                rtl_UriDecodeWithCharset, RTL_TEXTENCODING_UTF8))
        : uri;
}

} // namespace cppu

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */