278 lines
8.7 KiB
C++
278 lines
8.7 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_folders.h>
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#include <pyuno/pyuno.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/strbuf.hxx>
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#include <rtl/bootstrap.hxx>
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#include <cppuhelper/implementationentry.hxx>
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#include <cppuhelper/factory.hxx>
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// apparently PATH_MAX is not standard and not defined by MSVC
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#ifndef PATH_MAX
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#ifdef _MAX_PATH
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#define PATH_MAX _MAX_PATH
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#else
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#ifdef 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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#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::registry::XRegistryKey;
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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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static void raiseRuntimeExceptionWhenNeeded() throw ( RuntimeException )
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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( (PyObject **)&excType, (PyObject**)&excValue,(PyObject**)&excTraceback);
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Runtime runtime;
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com::sun::star::uno::Any a = runtime.extractUnoException( excType, excValue, excTraceback );
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OUStringBuffer buf;
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buf.appendAscii( "python-loader:" );
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if( a.hasValue() )
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buf.append( ((com::sun::star::uno::Exception *)a.getValue())->Message );
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throw RuntimeException( buf.makeStringAndClear() );
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}
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}
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static PyRef getLoaderModule() throw( RuntimeException )
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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( "pythonloader: Couldn't load pythonloader module" );
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}
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return PyRef( PyModule_GetDict( module.get() ));
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}
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static PyRef getObjectFromLoaderModule( const char * func )
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throw ( RuntimeException )
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{
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PyRef object( PyDict_GetItemString(getLoaderModule().get(), (char*)func ) );
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if( !object.is() )
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{
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OUStringBuffer buf;
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buf.appendAscii( "pythonloader: couldn't find core element pythonloader." );
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buf.appendAscii( func );
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throw RuntimeException(buf.makeStringAndClear());
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}
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return object;
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}
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OUString getImplementationName()
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{
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return OUString( "org.openoffice.comp.pyuno.Loader" );
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}
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Sequence< OUString > getSupportedServiceNames()
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{
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OUString serviceName( "com.sun.star.loader.Python" );
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return Sequence< OUString > ( &serviceName, 1 );
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}
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static void setPythonHome ( const OUString & pythonHome )
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{
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OUString systemPythonHome;
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osl_getSystemPathFromFileURL( pythonHome.pData, &(systemPythonHome.pData) );
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OString o = OUStringToOString( systemPythonHome, osl_getThreadTextEncoding() );
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#if PY_MAJOR_VERSION >= 3
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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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size_t len = mbstowcs(wide, o.pData->buffer, PATH_MAX + 1);
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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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if(len == PATH_MAX + 1)
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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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Py_SetPythonHome(wide);
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#else
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rtl_string_acquire(o.pData); // increase reference count
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Py_SetPythonHome(o.pData->buffer);
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#endif
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}
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static void prependPythonPath( const OUString & pythonPathBootstrap )
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{
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OUStringBuffer bufPYTHONPATH( 256 );
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sal_Int32 nIndex = 0;
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while( true )
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{
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sal_Int32 nNew = pythonPathBootstrap.indexOf( ' ', nIndex );
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OUString fileUrl;
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if( nNew == -1 )
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{
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fileUrl = pythonPathBootstrap.copy(nIndex);
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}
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else
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{
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fileUrl = pythonPathBootstrap.copy(nIndex, nNew - nIndex);
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}
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OUString systemPath;
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osl_getSystemPathFromFileURL( fileUrl.pData, &(systemPath.pData) );
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bufPYTHONPATH.append( systemPath );
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bufPYTHONPATH.append( static_cast<sal_Unicode>(SAL_PATHSEPARATOR) );
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if( nNew == -1 )
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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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bufPYTHONPATH.append( OUString(oldEnv, strlen(oldEnv), osl_getThreadTextEncoding()) );
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OUString envVar("PYTHONPATH");
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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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Reference< XInterface > CreateInstance( const Reference< XComponentContext > & ctx )
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{
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Reference< XInterface > ret;
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if( ! Py_IsInitialized() )
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{
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OUString pythonPath;
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OUString pythonHome;
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OUString path( "$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("pythonloader.uno" ));
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rtl::Bootstrap::expandMacros(path); //TODO: detect failure
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rtl::Bootstrap bootstrap(path);
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// look for pythonhome
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bootstrap.getFrom( OUString( "PYUNO_LOADER_PYTHONHOME"), pythonHome );
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bootstrap.getFrom( OUString( "PYUNO_LOADER_PYTHONPATH" ) , pythonPath );
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// pythonhome+pythonpath must be set before Py_Initialize(), otherwise there appear warning on the console
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// sadly, there is no api for setting the pythonpath, we have to use the environment variable
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if( !pythonHome.isEmpty() )
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setPythonHome( pythonHome );
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if( !pythonPath.isEmpty() )
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prependPythonPath( pythonPath );
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#ifdef WNT
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//extend PATH under windows to include the branddir/program so ssl libs will be found
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//for use by terminal mailmerge dependency _ssl.pyd
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OUString sEnvName("PATH");
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OUString sPath;
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osl_getEnvironment(sEnvName.pData, &sPath.pData);
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OUString sBrandLocation("$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 = OUStringBuffer(sPath).
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append(static_cast<sal_Unicode>(SAL_PATHSEPARATOR)).
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append(sBrandLocation).makeStringAndClear();
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osl_setEnvironment(sEnvName.pData, sPath.pData);
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#endif
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#if PY_MAJOR_VERSION >= 3
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PyImport_AppendInittab( (char*)"pyuno", PyInit_pyuno );
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#else
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PyImport_AppendInittab( (char*)"pyuno", initpyuno );
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#endif
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// initialize python
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Py_Initialize();
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PyEval_InitThreads();
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PyThreadState *tstate = PyThreadState_Get();
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PyEval_ReleaseThread( tstate );
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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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}
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PyThreadAttach attach( PyInterpreterState_Head() );
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{
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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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com::sun::star::uno::makeAny( 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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return ret;
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}
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}
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static const struct cppu::ImplementationEntry g_entries[] =
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{
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{
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pyuno_loader::CreateInstance, pyuno_loader::getImplementationName,
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pyuno_loader::getSupportedServiceNames, cppu::createSingleComponentFactory,
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0 , 0
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},
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{ 0, 0, 0, 0, 0, 0 }
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};
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extern "C"
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{
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SAL_DLLPUBLIC_EXPORT void * SAL_CALL pythonloader_component_getFactory(
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const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
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{
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return cppu::component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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