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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <pyuno/pyuno.hxx>
21 :
22 : #include <osl/process.h>
23 : #include <osl/file.hxx>
24 : #include <osl/thread.h>
25 :
26 : #include <rtl/ustrbuf.hxx>
27 : #include <rtl/strbuf.hxx>
28 : #include <rtl/bootstrap.hxx>
29 :
30 : #include <cppuhelper/implementationentry.hxx>
31 : #include <cppuhelper/factory.hxx>
32 :
33 : // apparently PATH_MAX is not standard and not defined by MSVC
34 : #ifndef PATH_MAX
35 : #ifdef _MAX_PATH
36 : #define PATH_MAX _MAX_PATH
37 : #else
38 : #ifdef MAX_PATH
39 : #define PATH_MAX MAX_PATH
40 : #else
41 : #error no PATH_MAX
42 : #endif
43 : #endif
44 : #endif
45 :
46 : using rtl::OUString;
47 : using rtl::OUStringBuffer;
48 : using rtl::OString;
49 :
50 : using pyuno::PyRef;
51 : using pyuno::Runtime;
52 : using pyuno::PyThreadAttach;
53 :
54 : using com::sun::star::registry::XRegistryKey;
55 : using com::sun::star::uno::Reference;
56 : using com::sun::star::uno::XInterface;
57 : using com::sun::star::uno::Sequence;
58 : using com::sun::star::uno::XComponentContext;
59 : using com::sun::star::uno::RuntimeException;
60 :
61 : namespace pyuno_loader
62 : {
63 :
64 0 : static void raiseRuntimeExceptionWhenNeeded() throw ( RuntimeException )
65 : {
66 0 : if( PyErr_Occurred() )
67 : {
68 0 : PyRef excType, excValue, excTraceback;
69 0 : PyErr_Fetch( (PyObject **)&excType, (PyObject**)&excValue,(PyObject**)&excTraceback);
70 0 : Runtime runtime;
71 0 : com::sun::star::uno::Any a = runtime.extractUnoException( excType, excValue, excTraceback );
72 0 : OUStringBuffer buf;
73 0 : buf.appendAscii( "python-loader:" );
74 0 : if( a.hasValue() )
75 0 : buf.append( ((com::sun::star::uno::Exception *)a.getValue())->Message );
76 0 : throw RuntimeException( buf.makeStringAndClear(), Reference< XInterface> () );
77 : }
78 0 : }
79 :
80 0 : static PyRef getLoaderModule() throw( RuntimeException )
81 : {
82 : PyRef module(
83 : PyImport_ImportModule( "pythonloader" ),
84 0 : SAL_NO_ACQUIRE );
85 0 : raiseRuntimeExceptionWhenNeeded();
86 0 : if( !module.is() )
87 : {
88 : throw RuntimeException(
89 : OUString( RTL_CONSTASCII_USTRINGPARAM( "pythonloader: Couldn't load pythonloader module" ) ),
90 0 : Reference< XInterface > () );
91 : }
92 0 : return PyRef( PyModule_GetDict( module.get() ));
93 : }
94 :
95 0 : static PyRef getObjectFromLoaderModule( const char * func )
96 : throw ( RuntimeException )
97 : {
98 0 : PyRef object( PyDict_GetItemString(getLoaderModule().get(), (char*)func ) );
99 0 : if( !object.is() )
100 : {
101 0 : OUStringBuffer buf;
102 0 : buf.appendAscii( "pythonloader: couldn't find core element pythonloader." );
103 0 : buf.appendAscii( func );
104 0 : throw RuntimeException(buf.makeStringAndClear(),Reference< XInterface >());
105 : }
106 0 : return object;
107 : }
108 :
109 0 : OUString getImplementationName()
110 : {
111 0 : return OUString( RTL_CONSTASCII_USTRINGPARAM( "org.openoffice.comp.pyuno.Loader" ) );
112 : }
113 :
114 0 : Sequence< OUString > getSupportedServiceNames()
115 : {
116 0 : OUString serviceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.loader.Python" ) );
117 0 : return Sequence< OUString > ( &serviceName, 1 );
118 : }
119 :
120 0 : static void setPythonHome ( const OUString & pythonHome )
121 : {
122 0 : OUString systemPythonHome;
123 0 : osl_getSystemPathFromFileURL( pythonHome.pData, &(systemPythonHome.pData) );
124 0 : OString o = rtl::OUStringToOString( systemPythonHome, osl_getThreadTextEncoding() );
125 : #if PY_MAJOR_VERSION >= 3
126 : // static because Py_SetPythonHome just copies the "wide" pointer
127 : static wchar_t wide[PATH_MAX + 1];
128 0 : size_t len = mbstowcs(wide, o.pData->buffer, PATH_MAX + 1);
129 0 : if(len == (size_t)-1)
130 : {
131 0 : PyErr_SetString(PyExc_SystemError, "invalid multibyte sequence in python home path");
132 : return;
133 : }
134 0 : if(len == PATH_MAX + 1)
135 : {
136 0 : PyErr_SetString(PyExc_SystemError, "python home path is too long");
137 : return;
138 : }
139 0 : Py_SetPythonHome(wide);
140 : #else
141 : rtl_string_acquire(o.pData); // increase reference count
142 : Py_SetPythonHome(o.pData->buffer);
143 : #endif
144 : }
145 :
146 0 : static void prependPythonPath( const OUString & pythonPathBootstrap )
147 : {
148 0 : rtl::OUStringBuffer bufPYTHONPATH( 256 );
149 0 : sal_Int32 nIndex = 0;
150 0 : while( 1 )
151 : {
152 0 : sal_Int32 nNew = pythonPathBootstrap.indexOf( ' ', nIndex );
153 0 : OUString fileUrl;
154 0 : if( nNew == -1 )
155 : {
156 0 : fileUrl = pythonPathBootstrap.copy(nIndex);
157 : }
158 : else
159 : {
160 0 : fileUrl = pythonPathBootstrap.copy(nIndex, nNew - nIndex);
161 : }
162 0 : OUString systemPath;
163 0 : osl_getSystemPathFromFileURL( fileUrl.pData, &(systemPath.pData) );
164 0 : bufPYTHONPATH.append( systemPath );
165 0 : bufPYTHONPATH.append( static_cast<sal_Unicode>(SAL_PATHSEPARATOR) );
166 0 : if( nNew == -1 )
167 : break;
168 0 : nIndex = nNew + 1;
169 0 : }
170 0 : const char * oldEnv = getenv( "PYTHONPATH");
171 0 : if( oldEnv )
172 0 : bufPYTHONPATH.append( rtl::OUString(oldEnv, strlen(oldEnv), osl_getThreadTextEncoding()) );
173 :
174 0 : rtl::OUString envVar(RTL_CONSTASCII_USTRINGPARAM("PYTHONPATH"));
175 0 : rtl::OUString envValue(bufPYTHONPATH.makeStringAndClear());
176 0 : osl_setEnvironment(envVar.pData, envValue.pData);
177 0 : }
178 :
179 0 : Reference< XInterface > CreateInstance( const Reference< XComponentContext > & ctx )
180 : {
181 0 : Reference< XInterface > ret;
182 :
183 0 : if( ! Py_IsInitialized() )
184 : {
185 0 : OUString pythonPath;
186 0 : OUString pythonHome;
187 0 : OUString path( RTL_CONSTASCII_USTRINGPARAM( "$BRAND_BASE_DIR/program/" SAL_CONFIGFILE("pythonloader.uno" )));
188 0 : rtl::Bootstrap::expandMacros(path); //TODO: detect failure
189 0 : rtl::Bootstrap bootstrap(path);
190 :
191 : // look for pythonhome
192 0 : bootstrap.getFrom( OUString( RTL_CONSTASCII_USTRINGPARAM( "PYUNO_LOADER_PYTHONHOME") ), pythonHome );
193 0 : bootstrap.getFrom( OUString( RTL_CONSTASCII_USTRINGPARAM( "PYUNO_LOADER_PYTHONPATH" ) ) , pythonPath );
194 :
195 : // pythonhome+pythonpath must be set before Py_Initialize(), otherwise there appear warning on the console
196 : // sadly, there is no api for setting the pythonpath, we have to use the environment variable
197 0 : if( !pythonHome.isEmpty() )
198 0 : setPythonHome( pythonHome );
199 :
200 0 : if( !pythonPath.isEmpty() )
201 0 : prependPythonPath( pythonPath );
202 :
203 : #if WNT
204 : //extend PATH under windows to include the branddir/program so ssl libs will be found
205 : //for use by terminal mailmerge dependency _ssl.pyd
206 : rtl::OUString sEnvName(RTL_CONSTASCII_USTRINGPARAM("PATH"));
207 : rtl::OUString sPath;
208 : osl_getEnvironment(sEnvName.pData, &sPath.pData);
209 : rtl::OUString sBrandLocation(RTL_CONSTASCII_USTRINGPARAM("$BRAND_BASE_DIR/program"));
210 : rtl::Bootstrap::expandMacros(sBrandLocation);
211 : osl::FileBase::getSystemPathFromFileURL(sBrandLocation, sBrandLocation);
212 : sPath = rtl::OUStringBuffer(sPath).
213 : append(static_cast<sal_Unicode>(SAL_PATHSEPARATOR)).
214 : append(sBrandLocation).makeStringAndClear();
215 : osl_setEnvironment(sEnvName.pData, sPath.pData);
216 : #endif
217 :
218 : #if PY_MAJOR_VERSION >= 3
219 0 : PyImport_AppendInittab( (char*)"pyuno", PyInit_pyuno );
220 : #else
221 : PyImport_AppendInittab( (char*)"pyuno", initpyuno );
222 : #endif
223 : // initialize python
224 0 : Py_Initialize();
225 0 : PyEval_InitThreads();
226 :
227 0 : PyThreadState *tstate = PyThreadState_Get();
228 0 : PyEval_ReleaseThread( tstate );
229 : }
230 :
231 0 : PyThreadAttach attach( PyInterpreterState_Head() );
232 : {
233 0 : if( ! Runtime::isInitialized() )
234 : {
235 0 : Runtime::initialize( ctx );
236 : }
237 0 : Runtime runtime;
238 :
239 : PyRef pyCtx = runtime.any2PyObject(
240 0 : com::sun::star::uno::makeAny( ctx ) );
241 :
242 0 : PyRef clazz = getObjectFromLoaderModule( "Loader" );
243 0 : PyRef args ( PyTuple_New( 1 ), SAL_NO_ACQUIRE );
244 0 : PyTuple_SetItem( args.get(), 0 , pyCtx.getAcquired() );
245 0 : PyRef pyInstance( PyObject_CallObject( clazz.get() , args.get() ), SAL_NO_ACQUIRE );
246 0 : runtime.pyObject2Any( pyInstance ) >>= ret;
247 : }
248 0 : return ret;
249 : }
250 :
251 : }
252 :
253 :
254 : static struct cppu::ImplementationEntry g_entries[] =
255 : {
256 : {
257 : pyuno_loader::CreateInstance, pyuno_loader::getImplementationName,
258 : pyuno_loader::getSupportedServiceNames, cppu::createSingleComponentFactory,
259 : 0 , 0
260 : },
261 : { 0, 0, 0, 0, 0, 0 }
262 : };
263 :
264 : extern "C"
265 : {
266 :
267 0 : SAL_DLLPUBLIC_EXPORT void * SAL_CALL pythonloader_component_getFactory(
268 : const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
269 : {
270 0 : return cppu::component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
271 : }
272 :
273 : }
274 :
275 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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