305 lines
9.4 KiB
C++
305 lines
9.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <config_features.h>
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#include <config_folders.h>
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#include <pyuno.hxx>
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#include <o3tl/any.hxx>
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#include <o3tl/char16_t2wchar_t.hxx>
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#include <osl/process.h>
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#include <osl/file.hxx>
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#include <osl/thread.h>
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#include <rtl/ustrbuf.hxx>
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#include <rtl/bootstrap.hxx>
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#include <cppuhelper/factory.hxx>
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#include <com/sun/star/uno/XComponentContext.hpp>
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#include <comphelper/processfactory.hxx>
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#include <officecfg/Office/Common.hxx>
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#include <systools/win32/extended_max_path.hxx>
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// apparently PATH_MAX is not standard and not defined by MSVC
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#ifdef _WIN32
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#ifdef PATH_MAX
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#undef PATH_MAX
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#endif
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#define PATH_MAX EXTENDED_MAX_PATH
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#endif
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#ifndef PATH_MAX
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#if defined _MAX_PATH
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#define PATH_MAX _MAX_PATH
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#elif defined MAX_PATH
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#define PATH_MAX MAX_PATH
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#else
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#error no PATH_MAX
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#endif
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#endif
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using pyuno::PyRef;
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using pyuno::NOT_NULL;
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using pyuno::Runtime;
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using pyuno::PyThreadAttach;
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using com::sun::star::uno::Reference;
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using com::sun::star::uno::XInterface;
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using com::sun::star::uno::Sequence;
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using com::sun::star::uno::XComponentContext;
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using com::sun::star::uno::RuntimeException;
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namespace pyuno_loader
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{
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/// @throws RuntimeException
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static void raiseRuntimeExceptionWhenNeeded()
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{
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if( PyErr_Occurred() )
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{
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PyRef excType, excValue, excTraceback;
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PyErr_Fetch(reinterpret_cast<PyObject **>(&excType), reinterpret_cast<PyObject**>(&excValue), reinterpret_cast<PyObject**>(&excTraceback));
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Runtime runtime;
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css::uno::Any a = runtime.extractUnoException( excType, excValue, excTraceback );
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OUStringBuffer buf( "python-loader:" );
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if( auto e = o3tl::tryAccess<css::uno::Exception>(a) )
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buf.append( e->Message );
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throw RuntimeException( buf.makeStringAndClear() );
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}
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}
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/// @throws RuntimeException
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static PyRef getLoaderModule()
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{
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PyRef module(
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PyImport_ImportModule( "pythonloader" ),
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SAL_NO_ACQUIRE );
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raiseRuntimeExceptionWhenNeeded();
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if( !module.is() )
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{
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throw RuntimeException( u"pythonloader: Couldn't load pythonloader module"_ustr );
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}
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return PyRef( PyModule_GetDict( module.get() ));
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}
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/// @throws RuntimeException
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static PyRef getObjectFromLoaderModule( const char * func )
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{
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PyRef object( PyDict_GetItemString(getLoaderModule().get(), func ) );
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if( !object.is() )
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{
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throw RuntimeException( "pythonloader: couldn't find core element pythonloader." +
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OUString::createFromAscii( func ));
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}
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return object;
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}
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#if PY_VERSION_HEX >= 0x03080000
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static void setPythonHome ( const OUString & pythonHome, PyConfig * config )
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#else
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static void setPythonHome ( const OUString & pythonHome )
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#endif
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{
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OUString systemPythonHome;
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osl_getSystemPathFromFileURL( pythonHome.pData, &(systemPythonHome.pData) );
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// static because Py_SetPythonHome just copies the "wide" pointer
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static wchar_t wide[PATH_MAX + 1];
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#if defined _WIN32
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const size_t len = systemPythonHome.getLength();
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if (len < std::size(wide))
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wcsncpy(wide, o3tl::toW(systemPythonHome.getStr()), len + 1);
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#else
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OString o = OUStringToOString(systemPythonHome, osl_getThreadTextEncoding());
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size_t len = mbstowcs(wide, o.pData->buffer, std::size(wide));
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if(len == size_t(-1))
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{
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PyErr_SetString(PyExc_SystemError, "invalid multibyte sequence in python home path");
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return;
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}
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#endif
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if (len >= std::size(wide))
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{
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PyErr_SetString(PyExc_SystemError, "python home path is too long");
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return;
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}
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#if PY_VERSION_HEX >= 0x03080000
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config->home = wide;
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#else
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Py_SetPythonHome(wide);
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#endif
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}
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static void prependPythonPath( std::u16string_view pythonPathBootstrap )
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{
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OUStringBuffer bufPYTHONPATH( 256 );
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bool bAppendSep = false;
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sal_Int32 nIndex = 0;
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while( true )
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{
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size_t nNew = pythonPathBootstrap.find( ' ', nIndex );
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std::u16string_view fileUrl;
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if( nNew == std::u16string_view::npos )
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{
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fileUrl = pythonPathBootstrap.substr(nIndex);
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}
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else
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{
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fileUrl = pythonPathBootstrap.substr(nIndex, nNew - nIndex);
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}
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OUString systemPath;
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osl_getSystemPathFromFileURL( OUString(fileUrl).pData, &(systemPath.pData) );
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if (!systemPath.isEmpty())
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{
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if (bAppendSep)
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bufPYTHONPATH.append(static_cast<sal_Unicode>(SAL_PATHSEPARATOR));
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bufPYTHONPATH.append(systemPath);
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bAppendSep = true;
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}
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if( nNew == std::u16string_view::npos )
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break;
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nIndex = nNew + 1;
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}
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const char * oldEnv = getenv( "PYTHONPATH");
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if( oldEnv )
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{
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if (bAppendSep)
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bufPYTHONPATH.append( static_cast<sal_Unicode>(SAL_PATHSEPARATOR) );
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bufPYTHONPATH.append( OUString(oldEnv, strlen(oldEnv), osl_getThreadTextEncoding()) );
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}
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OUString envVar(u"PYTHONPATH"_ustr);
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OUString envValue(bufPYTHONPATH.makeStringAndClear());
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osl_setEnvironment(envVar.pData, envValue.pData);
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}
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namespace {
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void pythonInit() {
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if ( Py_IsInitialized()) // may be inited by getComponentContext() already
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return;
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#if PY_VERSION_HEX >= 0x03080000
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PyConfig config;
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#endif
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OUString pythonPath;
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OUString pythonHome;
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OUString path( u"$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("pythonloader.uno" ) ""_ustr);
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rtl::Bootstrap::expandMacros(path); //TODO: detect failure
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rtl::Bootstrap bootstrap(path);
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#if PY_VERSION_HEX >= 0x03080000
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PyConfig_InitPythonConfig( &config );
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#endif
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// look for pythonhome
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bootstrap.getFrom( u"PYUNO_LOADER_PYTHONHOME"_ustr, pythonHome );
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bootstrap.getFrom( u"PYUNO_LOADER_PYTHONPATH"_ustr, pythonPath );
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// pythonhome+pythonpath must be set before Py_Initialize(), otherwise there appear warning on the console
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// sadly, there is no api for setting the pythonpath, we have to use the environment variable
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if( !pythonHome.isEmpty() )
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#if PY_VERSION_HEX >= 0x03080000
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setPythonHome( pythonHome, &config );
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#else
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setPythonHome( pythonHome );
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#endif
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if( !pythonPath.isEmpty() )
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prependPythonPath( pythonPath );
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#ifdef _WIN32
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//extend PATH under windows to include the branddir/program so ssl libs will be found
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//for use by terminal mailmerge dependency _ssl.pyd
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OUString sEnvName("PATH");
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OUString sPath;
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osl_getEnvironment(sEnvName.pData, &sPath.pData);
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OUString sBrandLocation("$BRAND_BASE_DIR/program");
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rtl::Bootstrap::expandMacros(sBrandLocation);
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osl::FileBase::getSystemPathFromFileURL(sBrandLocation, sBrandLocation);
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sPath = sPath + OUStringChar(SAL_PATHSEPARATOR) + sBrandLocation;
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osl_setEnvironment(sEnvName.pData, sPath.pData);
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#endif
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PyImport_AppendInittab( "pyuno", PyInit_pyuno );
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#if HAVE_FEATURE_READONLY_INSTALLSET
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Py_DontWriteBytecodeFlag = 1;
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#endif
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// initialize python
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Py_Initialize();
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#if PY_VERSION_HEX < 0x03090000
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PyEval_InitThreads();
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#endif
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PyThreadState *tstate = PyThreadState_Get();
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PyEval_ReleaseThread( tstate );
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#if PY_VERSION_HEX < 0x030B0000
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// This tstate is never used again, so delete it here.
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// This prevents an assertion in PyThreadState_Swap on the
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// PyThreadAttach below.
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PyThreadState_Delete(tstate);
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#endif
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}
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}
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extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
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pyuno_Loader_get_implementation(
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css::uno::XComponentContext* ctx , css::uno::Sequence<css::uno::Any> const&)
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{
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if (officecfg::Office::Common::Security::Scripting::DisablePythonRuntime::get(ctx))
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return nullptr;
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// tdf#114815 init python only once, via single-instance="true" in pythonloader.component
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pythonInit();
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Reference< XInterface > ret;
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PyThreadAttach attach( PyInterpreterState_Head() );
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{
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// note: this can't race against getComponentContext() because
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// either (in soffice.bin) CreateInstance() must be called before
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// getComponentContext() can be called, or (in python.bin) the other
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// way around
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if( ! Runtime::isInitialized() )
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{
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Runtime::initialize( ctx );
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}
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Runtime runtime;
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PyRef pyCtx = runtime.any2PyObject(
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css::uno::Any( css::uno::Reference(ctx) ) );
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PyRef clazz = getObjectFromLoaderModule( "Loader" );
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PyRef args ( PyTuple_New( 1 ), SAL_NO_ACQUIRE, NOT_NULL );
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PyTuple_SetItem( args.get(), 0 , pyCtx.getAcquired() );
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PyRef pyInstance( PyObject_CallObject( clazz.get() , args.get() ), SAL_NO_ACQUIRE );
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runtime.pyObject2Any( pyInstance ) >>= ret;
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}
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ret->acquire();
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return ret.get();
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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