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/* -*- 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <config_folders.h>
#include <osl/diagnose.h>
#include <osl/thread.h>
#include <osl/process.h>
#include <osl/file.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/uri.hxx>
#include "shellexec.hxx"
#include <com/sun/star/system/SystemShellExecuteFlags.hpp>
#include <com/sun/star/util/theMacroExpander.hpp>
#include <com/sun/star/uri/XExternalUriReferenceTranslator.hpp>
#include <com/sun/star/uri/ExternalUriReferenceTranslator.hpp>
#include <com/sun/star/uri/UriReferenceFactory.hpp>
#include <cppuhelper/supportsservice.hxx>
#include "uno/current_context.hxx"
#include <string.h>
#include <errno.h>
#include <unistd.h>
// namespace directives
using com::sun::star::system::XSystemShellExecute;
using com::sun::star::system::SystemShellExecuteException;
using osl::FileBase;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::system::SystemShellExecuteFlags;
using namespace cppu;
namespace // private
{
Sequence< OUString > SAL_CALL ShellExec_getSupportedServiceNames()
{
Sequence< OUString > aRet { "com.sun.star.system.SystemShellExecute" };
return aRet;
}
}
void escapeForShell( OStringBuffer & rBuffer, const OString & rURL)
{
sal_Int32 nmax = rURL.getLength();
for(sal_Int32 n=0; n < nmax; ++n)
{
// escape every non alpha numeric characters (excluding a few "known good") by prepending a '\'
sal_Char c = rURL[n];
if( ( c < 'A' || c > 'Z' ) && ( c < 'a' || c > 'z' ) && ( c < '0' || c > '9' ) && c != '/' && c != '.' )
rBuffer.append( '\\' );
rBuffer.append( c );
}
}
ShellExec::ShellExec( const Reference< XComponentContext >& xContext ) :
WeakImplHelper< XSystemShellExecute, XServiceInfo >(),
m_xContext(xContext)
{
try {
Reference< XCurrentContext > xCurrentContext(getCurrentContext());
if (xCurrentContext.is())
{
Any aValue = xCurrentContext->getValueByName( "system.desktop-environment" );
OUString aDesktopEnvironment;
if (aValue >>= aDesktopEnvironment)
{
m_aDesktopEnvironment = OUStringToOString(aDesktopEnvironment, RTL_TEXTENCODING_ASCII_US);
}
}
} catch (const RuntimeException &) {
}
}
void SAL_CALL ShellExec::execute( const OUString& aCommand, const OUString& aParameter, sal_Int32 nFlags )
throw (IllegalArgumentException, SystemShellExecuteException, RuntimeException, std::exception)
{
OStringBuffer aBuffer, aLaunchBuffer;
// DESKTOP_LAUNCH, see http://freedesktop.org/pipermail/xdg/2004-August/004489.html
static const char *pDesktopLaunch = getenv( "DESKTOP_LAUNCH" );
// Check whether aCommand contains an absolute URI reference:
css::uno::Reference< css::uri::XUriReference > uri(
css::uri::UriReferenceFactory::create(m_xContext)->parse(aCommand));
if (uri.is() && uri->isAbsolute())
{
// It seems to be a url ..
// We need to re-encode file urls because osl_getFileURLFromSystemPath converts
// to UTF-8 before encoding non ascii characters, which is not what other apps
// expect.
OUString aURL = css::uri::ExternalUriReferenceTranslator::create(
m_xContext)->translateToExternal(aCommand);
if ( aURL.isEmpty() && !aCommand.isEmpty() )
{
throw RuntimeException(
"Cannot translate URI reference to external format: "
+ aCommand,
static_cast< cppu::OWeakObject * >(this));
}
#ifdef MACOSX
//TODO: Using open(1) with an argument that syntactically is an absolute
// URI reference does not necessarily give expected results:
// 1 If the given URI reference matches a supported scheme (e.g.,
// "mailto:foo"):
// 1.1 If it matches an existing pathname (relative to CWD): Results
// in "mailto:foo?\n[0]\tcancel\n[1]\tOpen the file\tmailto:foo\n[2]\t
// Open the URL\tmailto:foo\n\nWhich did you mean? Cancelled." on
// stderr and SystemShellExecuteException.
// 1.2 If it does not match an exitsting pathname (relative to CWD):
// Results in the corresponding application being opened with the given
// document (e.g., Mail with a New Message).
// 2 If the given URI reference does not match a supported scheme
// (e.g., "foo:bar"):
// 2.1 If it matches an existing pathname (relative to CWD) pointing to
// an executable: Results in execution of that executable.
// 2.2 If it matches an existing pathname (relative to CWD) pointing to
// a non-executable regular file: Results in opening it in TextEdit.
// 2.3 If it matches an existing pathname (relative to CWD) pointing to
// a directory: Results in opening it in Finder.
// 2.4 If it does not match an exitsting pathname (relative to CWD):
// Results in "The file /.../foo:bar does not exits." (where "/..." is
// the CWD) on stderr and SystemShellExecuteException.
aBuffer.append("open --");
#else
// The url launchers are expected to be in the $BRAND_BASE_DIR/LIBO_LIBEXEC_FOLDER
// directory:
css::uno::Reference< css::util::XMacroExpander > exp = css::util::theMacroExpander::get(m_xContext);
OUString aProgramURL;
try {
aProgramURL = exp->expandMacros( "$BRAND_BASE_DIR/" LIBO_LIBEXEC_FOLDER "/");
} catch (css::lang::IllegalArgumentException &)
{
throw SystemShellExecuteException(
"Could not expand $BRAND_BASE_DIR path",
static_cast < XSystemShellExecute * > (this), ENOENT );
}
OUString aProgram;
if ( FileBase::E_None != FileBase::getSystemPathFromFileURL(aProgramURL, aProgram))
{
throw SystemShellExecuteException(
"Cound not convert executable path",
static_cast < XSystemShellExecute * > (this), ENOENT );
}
OString aTmp = OUStringToOString(aProgram, osl_getThreadTextEncoding());
escapeForShell(aBuffer, aTmp);
#ifdef SOLARIS
if ( m_aDesktopEnvironment.getLength() == 0 )
m_aDesktopEnvironment = OString("GNOME");
#endif
// Respect the desktop environment - if there is an executable named
// <desktop-environement-is>-open-url, pass the url to this one instead
// of the default "open-url" script.
if ( !m_aDesktopEnvironment.isEmpty() )
{
OString aDesktopEnvironment(m_aDesktopEnvironment.toAsciiLowerCase());
OStringBuffer aCopy(aTmp);
aCopy.append(aDesktopEnvironment + "-open-url");
if ( 0 == access( aCopy.getStr(), X_OK) )
{
aBuffer.append(aDesktopEnvironment + "-");
}
}
aBuffer.append("open-url");
#endif
aBuffer.append(" ");
escapeForShell(aBuffer, OUStringToOString(aURL, osl_getThreadTextEncoding()));
if ( pDesktopLaunch && *pDesktopLaunch )
{
aLaunchBuffer.append( OString(pDesktopLaunch) + " ");
escapeForShell(aLaunchBuffer, OUStringToOString(aURL, osl_getThreadTextEncoding()));
}
} else if ((nFlags & css::system::SystemShellExecuteFlags::URIS_ONLY) != 0)
{
throw css::lang::IllegalArgumentException(
"XSystemShellExecute.execute URIS_ONLY with non-absolute"
" URI reference "
+ aCommand,
static_cast< cppu::OWeakObject * >(this), 0);
} else {
escapeForShell(aBuffer, OUStringToOString(aCommand, osl_getThreadTextEncoding()));
aBuffer.append(" ");
if( nFlags != 42 )
escapeForShell(aBuffer, OUStringToOString(aParameter, osl_getThreadTextEncoding()));
else
aBuffer.append(OUStringToOString(aParameter, osl_getThreadTextEncoding()));
}
// Prefer DESKTOP_LAUNCH when available
if ( !aLaunchBuffer.isEmpty() )
{
FILE *pLaunch = popen( aLaunchBuffer.makeStringAndClear().getStr(), "w" );
if ( pLaunch != nullptr )
{
if ( 0 == pclose( pLaunch ) )
return;
}
// Failed, do not try DESKTOP_LAUNCH any more
pDesktopLaunch = nullptr;
}
OString cmd =
#ifdef LINUX
// avoid blocking (call it in background)
"( " + aBuffer.makeStringAndClear() + " ) &";
#else
aBuffer.makeStringAndClear();
#endif
FILE *pLaunch = popen(cmd.getStr(), "w");
if ( pLaunch != nullptr )
{
if ( 0 == pclose( pLaunch ) )
return;
}
int nerr = errno;
throw SystemShellExecuteException(OUString::createFromAscii( strerror( nerr ) ),
static_cast < XSystemShellExecute * > (this), nerr );
}
// XServiceInfo
OUString SAL_CALL ShellExec::getImplementationName( )
throw( RuntimeException, std::exception )
{
return OUString("com.sun.star.comp.system.SystemShellExecute");
}
// XServiceInfo
sal_Bool SAL_CALL ShellExec::supportsService( const OUString& ServiceName )
throw( RuntimeException, std::exception )
{
return cppu::supportsService(this, ServiceName);
}
// XServiceInfo
Sequence< OUString > SAL_CALL ShellExec::getSupportedServiceNames( )
throw( RuntimeException, std::exception )
{
return ShellExec_getSupportedServiceNames();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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