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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_features.h>
+#include <config_folders.h>
+
+#include <pyuno.hxx>
+
+#include <o3tl/any.hxx>
+
+#include <osl/process.h>
+#include <osl/file.hxx>
+#include <osl/thread.h>
+
+#include <rtl/ustrbuf.hxx>
+#include <rtl/bootstrap.hxx>
+
+#include <cppuhelper/implementationentry.hxx>
+#include <cppuhelper/factory.hxx>
+
+#include <com/sun/star/uno/XComponentContext.hpp>
+
+// apparently PATH_MAX is not standard and not defined by MSVC
+#ifndef PATH_MAX
+#ifdef _MAX_PATH
+#define PATH_MAX _MAX_PATH
+#else
+#ifdef MAX_PATH
+#define PATH_MAX MAX_PATH
+#else
+#error no PATH_MAX
+#endif
+#endif
+#endif
+
+using pyuno::PyRef;
+using pyuno::NOT_NULL;
+using pyuno::Runtime;
+using pyuno::PyThreadAttach;
+
+using com::sun::star::uno::Reference;
+using com::sun::star::uno::XInterface;
+using com::sun::star::uno::Sequence;
+using com::sun::star::uno::XComponentContext;
+using com::sun::star::uno::RuntimeException;
+
+namespace pyuno_loader
+{
+
+/// @throws RuntimeException
+static void raiseRuntimeExceptionWhenNeeded()
+{
+ if( PyErr_Occurred() )
+ {
+ PyRef excType, excValue, excTraceback;
+ PyErr_Fetch(reinterpret_cast<PyObject **>(&excType), reinterpret_cast<PyObject**>(&excValue), reinterpret_cast<PyObject**>(&excTraceback));
+ Runtime runtime;
+ css::uno::Any a = runtime.extractUnoException( excType, excValue, excTraceback );
+ OUStringBuffer buf;
+ buf.append( "python-loader:" );
+ if( auto e = o3tl::tryAccess<css::uno::Exception>(a) )
+ buf.append( e->Message );
+ throw RuntimeException( buf.makeStringAndClear() );
+ }
+}
+
+/// @throws RuntimeException
+static PyRef getLoaderModule()
+{
+ PyRef module(
+ PyImport_ImportModule( "pythonloader" ),
+ SAL_NO_ACQUIRE );
+ raiseRuntimeExceptionWhenNeeded();
+ if( !module.is() )
+ {
+ throw RuntimeException( "pythonloader: Couldn't load pythonloader module" );
+ }
+ return PyRef( PyModule_GetDict( module.get() ));
+}
+
+/// @throws RuntimeException
+static PyRef getObjectFromLoaderModule( const char * func )
+{
+ PyRef object( PyDict_GetItemString(getLoaderModule().get(), func ) );
+ if( !object.is() )
+ {
+ throw RuntimeException( "pythonloader: couldn't find core element pythonloader." +
+ OUString::createFromAscii( func ));
+ }
+ return object;
+}
+
+static OUString getImplementationName()
+{
+ return "org.openoffice.comp.pyuno.Loader";
+}
+
+static Sequence< OUString > getSupportedServiceNames()
+{
+ return { "com.sun.star.loader.Python" };
+}
+
+static void setPythonHome ( const OUString & pythonHome )
+{
+ OUString systemPythonHome;
+ osl_getSystemPathFromFileURL( pythonHome.pData, &(systemPythonHome.pData) );
+ OString o = OUStringToOString( systemPythonHome, osl_getThreadTextEncoding() );
+ // static because Py_SetPythonHome just copies the "wide" pointer
+ static wchar_t wide[PATH_MAX + 1];
+ size_t len = mbstowcs(wide, o.pData->buffer, PATH_MAX + 1);
+ if(len == size_t(-1))
+ {
+ PyErr_SetString(PyExc_SystemError, "invalid multibyte sequence in python home path");
+ return;
+ }
+ if(len == PATH_MAX + 1)
+ {
+ PyErr_SetString(PyExc_SystemError, "python home path is too long");
+ return;
+ }
+ Py_SetPythonHome(wide);
+}
+
+static void prependPythonPath( const OUString & pythonPathBootstrap )
+{
+ OUStringBuffer bufPYTHONPATH( 256 );
+ bool bAppendSep = false;
+ sal_Int32 nIndex = 0;
+ while( true )
+ {
+ sal_Int32 nNew = pythonPathBootstrap.indexOf( ' ', nIndex );
+ OUString fileUrl;
+ if( nNew == -1 )
+ {
+ fileUrl = pythonPathBootstrap.copy(nIndex);
+ }
+ else
+ {
+ fileUrl = pythonPathBootstrap.copy(nIndex, nNew - nIndex);
+ }
+ OUString systemPath;
+ osl_getSystemPathFromFileURL( fileUrl.pData, &(systemPath.pData) );
+ if (!systemPath.isEmpty())
+ {
+ if (bAppendSep)
+ bufPYTHONPATH.append(static_cast<sal_Unicode>(SAL_PATHSEPARATOR));
+ bufPYTHONPATH.append(systemPath);
+ bAppendSep = true;
+ }
+ if( nNew == -1 )
+ break;
+ nIndex = nNew + 1;
+ }
+ const char * oldEnv = getenv( "PYTHONPATH");
+ if( oldEnv )
+ {
+ if (bAppendSep)
+ bufPYTHONPATH.append( static_cast<sal_Unicode>(SAL_PATHSEPARATOR) );
+ bufPYTHONPATH.append( OUString(oldEnv, strlen(oldEnv), osl_getThreadTextEncoding()) );
+ }
+
+ OUString envVar("PYTHONPATH");
+ OUString envValue(bufPYTHONPATH.makeStringAndClear());
+ osl_setEnvironment(envVar.pData, envValue.pData);
+}
+
+namespace {
+
+struct PythonInit
+{
+PythonInit() {
+ if ( Py_IsInitialized()) // may be inited by getComponentContext() already
+ return;
+
+ OUString pythonPath;
+ OUString pythonHome;
+ OUString path( "$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("pythonloader.uno" ));
+ rtl::Bootstrap::expandMacros(path); //TODO: detect failure
+ rtl::Bootstrap bootstrap(path);
+
+ // look for pythonhome
+ bootstrap.getFrom( "PYUNO_LOADER_PYTHONHOME", pythonHome );
+ bootstrap.getFrom( "PYUNO_LOADER_PYTHONPATH", pythonPath );
+
+ // pythonhome+pythonpath must be set before Py_Initialize(), otherwise there appear warning on the console
+ // sadly, there is no api for setting the pythonpath, we have to use the environment variable
+ if( !pythonHome.isEmpty() )
+ setPythonHome( pythonHome );
+
+ if( !pythonPath.isEmpty() )
+ prependPythonPath( pythonPath );
+
+#ifdef _WIN32
+ //extend PATH under windows to include the branddir/program so ssl libs will be found
+ //for use by terminal mailmerge dependency _ssl.pyd
+ OUString sEnvName("PATH");
+ OUString sPath;
+ osl_getEnvironment(sEnvName.pData, &sPath.pData);
+ OUString sBrandLocation("$BRAND_BASE_DIR/program");
+ rtl::Bootstrap::expandMacros(sBrandLocation);
+ osl::FileBase::getSystemPathFromFileURL(sBrandLocation, sBrandLocation);
+ sPath = OUStringBuffer(sPath).
+ append(static_cast<sal_Unicode>(SAL_PATHSEPARATOR)).
+ append(sBrandLocation).makeStringAndClear();
+ osl_setEnvironment(sEnvName.pData, sPath.pData);
+#endif
+
+ PyImport_AppendInittab( "pyuno", PyInit_pyuno );
+
+#if HAVE_FEATURE_READONLY_INSTALLSET
+ Py_DontWriteBytecodeFlag = 1;
+#endif
+
+ // initialize python
+ Py_Initialize();
+ PyEval_InitThreads();
+
+ PyThreadState *tstate = PyThreadState_Get();
+ PyEval_ReleaseThread( tstate );
+ // This tstate is never used again, so delete it here.
+ // This prevents an assertion in PyThreadState_Swap on the
+ // PyThreadAttach below.
+ PyThreadState_Delete(tstate);
+}
+};
+
+}
+
+static Reference<XInterface> CreateInstance(const Reference<XComponentContext> & ctx)
+{
+ // tdf#114815 thread-safe static to init python only once
+ static PythonInit s_Init;
+
+ Reference< XInterface > ret;
+
+ PyThreadAttach attach( PyInterpreterState_Head() );
+ {
+ // note: this can't race against getComponentContext() because
+ // either (in soffice.bin) CreateInstance() must be called before
+ // getComponentContext() can be called, or (in python.bin) the other
+ // way around
+ if( ! Runtime::isInitialized() )
+ {
+ Runtime::initialize( ctx );
+ }
+ Runtime runtime;
+
+ PyRef pyCtx = runtime.any2PyObject(
+ css::uno::makeAny( ctx ) );
+
+ PyRef clazz = getObjectFromLoaderModule( "Loader" );
+ PyRef args ( PyTuple_New( 1 ), SAL_NO_ACQUIRE, NOT_NULL );
+ PyTuple_SetItem( args.get(), 0 , pyCtx.getAcquired() );
+ PyRef pyInstance( PyObject_CallObject( clazz.get() , args.get() ), SAL_NO_ACQUIRE );
+ runtime.pyObject2Any( pyInstance ) >>= ret;
+ }
+ return ret;
+}
+
+}
+
+
+static const struct cppu::ImplementationEntry g_entries[] =
+{
+ {
+ pyuno_loader::CreateInstance, pyuno_loader::getImplementationName,
+ pyuno_loader::getSupportedServiceNames, cppu::createSingleComponentFactory,
+ nullptr , 0
+ },
+ { nullptr, nullptr, nullptr, nullptr, nullptr, 0 }
+};
+
+extern "C"
+{
+
+SAL_DLLPUBLIC_EXPORT void * pythonloader_component_getFactory(
+ const char * pImplName, void * pServiceManager, void * pRegistryKey )
+{
+ return cppu::component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */