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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
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11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include <pyuno/pyuno.hxx>
25
26 #include <osl/process.h>
27 #include <osl/file.h>
28 #include <osl/thread.h>
29
30 #include <rtl/ustrbuf.hxx>
31 #include <rtl/strbuf.hxx>
32 #include <rtl/bootstrap.hxx>
33
34 #include <cppuhelper/implementationentry.hxx>
35 #include <cppuhelper/factory.hxx>
36
37 using rtl::OUString;
38 using rtl::OUStringBuffer;
39 using rtl::OString;
40
41 using pyuno::PyRef;
42 using pyuno::Runtime;
43 using pyuno::PyThreadAttach;
44
45 using com::sun::star::registry::XRegistryKey;
46 using com::sun::star::uno::Reference;
47 using com::sun::star::uno::XInterface;
48 using com::sun::star::uno::Sequence;
49 using com::sun::star::uno::XComponentContext;
50 using com::sun::star::uno::RuntimeException;
51
52 namespace pyuno_loader
53 {
54
raiseRuntimeExceptionWhenNeeded()55 static void raiseRuntimeExceptionWhenNeeded() throw ( RuntimeException )
56 {
57 if( PyErr_Occurred() )
58 {
59 PyRef excType, excValue, excTraceback;
60 PyErr_Fetch( (PyObject **)&excType, (PyObject**)&excValue,(PyObject**)&excTraceback);
61 Runtime runtime;
62 com::sun::star::uno::Any a = runtime.extractUnoException( excType, excValue, excTraceback );
63 OUStringBuffer buf;
64 buf.appendAscii( "python-loader:" );
65 if( a.hasValue() )
66 buf.append( ((com::sun::star::uno::Exception *)a.getValue())->Message );
67 throw RuntimeException( buf.makeStringAndClear(), Reference< XInterface> () );
68 }
69 }
70
getLoaderModule()71 static PyRef getLoaderModule() throw( RuntimeException )
72 {
73 PyRef module(
74 PyImport_ImportModule( const_cast< char * >("pythonloader") ),
75 SAL_NO_ACQUIRE );
76 raiseRuntimeExceptionWhenNeeded();
77 if( !module.is() )
78 {
79 throw RuntimeException(
80 OUString( RTL_CONSTASCII_USTRINGPARAM( "pythonloader: Couldn't load pythonloader module" ) ),
81 Reference< XInterface > () );
82 }
83 return PyRef( PyModule_GetDict( module.get() ));
84 }
85
getObjectFromLoaderModule(const char * func)86 static PyRef getObjectFromLoaderModule( const char * func )
87 throw ( RuntimeException )
88 {
89 PyRef object( PyDict_GetItemString(getLoaderModule().get(), (char*)func ) );
90 if( !object.is() )
91 {
92 OUStringBuffer buf;
93 buf.appendAscii( "pythonloader: couldn't find core element pythonloader." );
94 buf.appendAscii( func );
95 throw RuntimeException(buf.makeStringAndClear(),Reference< XInterface >());
96 }
97 return object;
98 }
99
getImplementationName()100 OUString getImplementationName()
101 {
102 return OUString( RTL_CONSTASCII_USTRINGPARAM( "org.openoffice.comp.pyuno.Loader" ) );
103 }
104
getSupportedServiceNames()105 Sequence< OUString > getSupportedServiceNames()
106 {
107 OUString serviceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.loader.Python" ) );
108 return Sequence< OUString > ( &serviceName, 1 );
109 }
110
setPythonHome(const OUString & pythonHome)111 static void setPythonHome ( const OUString & pythonHome )
112 {
113 OUString systemPythonHome;
114 osl_getSystemPathFromFileURL( pythonHome.pData, &(systemPythonHome.pData) );
115 OString o = rtl::OUStringToOString( systemPythonHome, osl_getThreadTextEncoding() );
116 #if PY_MAJOR_VERSION < 3 || PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION <= 4
117 rtl_string_acquire(o.pData); // leak this string (that's the api!)
118 Py_SetPythonHome( o.pData->buffer);
119 #else
120 static wchar_t *wpath = Py_DecodeLocale(o.pData->buffer, NULL);
121 if (wpath == NULL) {
122 PyErr_SetString(PyExc_SystemError, "Cannot decode python home path");
123 return;
124 }
125 Py_SetPythonHome(wpath);
126 #endif
127 }
128
prependPythonPath(const OUString & pythonPathBootstrap)129 static void prependPythonPath( const OUString & pythonPathBootstrap )
130 {
131 rtl::OUStringBuffer bufPYTHONPATH( 256 );
132 sal_Int32 nIndex = 0;
133 while( 1 )
134 {
135 sal_Int32 nNew = pythonPathBootstrap.indexOf( ' ', nIndex );
136 OUString fileUrl;
137 if( nNew == -1 )
138 {
139 fileUrl = OUString( &( pythonPathBootstrap[nIndex] ) );
140 }
141 else
142 {
143 fileUrl = OUString( &(pythonPathBootstrap[nIndex]) , nNew - nIndex );
144 }
145 OUString systemPath;
146 osl_getSystemPathFromFileURL( fileUrl.pData, &(systemPath.pData) );
147 bufPYTHONPATH.append( systemPath );
148 bufPYTHONPATH.append( static_cast<sal_Unicode>(SAL_PATHSEPARATOR) );
149 if( nNew == -1 )
150 break;
151 nIndex = nNew + 1;
152 }
153 const char * oldEnv = getenv( "PYTHONPATH");
154 if( oldEnv )
155 bufPYTHONPATH.append( rtl::OUString(oldEnv, strlen(oldEnv), osl_getThreadTextEncoding()) );
156
157 rtl::OUString envVar(RTL_CONSTASCII_USTRINGPARAM("PYTHONPATH"));
158 rtl::OUString envValue(bufPYTHONPATH.makeStringAndClear());
159 osl_setEnvironment(envVar.pData, envValue.pData);
160 }
161
CreateInstance(const Reference<XComponentContext> & ctx)162 Reference< XInterface > CreateInstance( const Reference< XComponentContext > & ctx )
163 {
164 Reference< XInterface > ret;
165
166 if( ! Py_IsInitialized() )
167 {
168 OUString pythonPath;
169 OUString pythonHome;
170 OUString path( RTL_CONSTASCII_USTRINGPARAM( "$OOO_BASE_DIR/program/" SAL_CONFIGFILE("pythonloader.uno" )));
171 rtl::Bootstrap::expandMacros(path); //TODO: detect failure
172 rtl::Bootstrap bootstrap(path);
173
174 // look for pythonhome
175 bootstrap.getFrom( OUString( RTL_CONSTASCII_USTRINGPARAM( "PYUNO_LOADER_PYTHONHOME") ), pythonHome );
176 bootstrap.getFrom( OUString( RTL_CONSTASCII_USTRINGPARAM( "PYUNO_LOADER_PYTHONPATH" ) ) , pythonPath );
177
178 // pythonhome+pythonpath must be set before Py_Initialize(), otherwise there appear warning on the console
179 // sadly, there is no api for setting the pythonpath, we have to use the environment variable
180 if( pythonHome.getLength() )
181 setPythonHome( pythonHome );
182
183 if( pythonPath.getLength() )
184 prependPythonPath( pythonPath );
185
186 // initialize python
187 Py_Initialize();
188 PyEval_InitThreads();
189
190 PyThreadState *tstate = PyThreadState_Get();
191 PyEval_ReleaseThread( tstate );
192 }
193
194 PyThreadAttach attach( PyInterpreterState_Head() );
195 {
196 if( ! Runtime::isInitialized() )
197 {
198 Runtime::initialize( ctx );
199 }
200 Runtime runtime;
201
202 PyRef pyCtx = runtime.any2PyObject(
203 com::sun::star::uno::makeAny( ctx ) );
204
205 PyRef clazz = getObjectFromLoaderModule( "Loader" );
206 PyRef args ( PyTuple_New( 1 ), SAL_NO_ACQUIRE );
207 PyTuple_SetItem( args.get(), 0 , pyCtx.getAcquired() );
208 PyRef pyInstance( PyObject_CallObject( clazz.get() , args.get() ), SAL_NO_ACQUIRE );
209 runtime.pyObject2Any( pyInstance ) >>= ret;
210 }
211 return ret;
212 }
213
214 }
215
216
217 static struct cppu::ImplementationEntry g_entries[] =
218 {
219 {
220 pyuno_loader::CreateInstance, pyuno_loader::getImplementationName,
221 pyuno_loader::getSupportedServiceNames, cppu::createSingleComponentFactory,
222 0 , 0
223 },
224 { 0, 0, 0, 0, 0, 0 }
225 };
226
227 extern "C"
228 {
229
230 //==================================================================================================
component_getImplementationEnvironment(const sal_Char ** ppEnvTypeName,uno_Environment **)231 SAL_DLLPUBLIC_EXPORT void SAL_CALL component_getImplementationEnvironment(
232 const sal_Char ** ppEnvTypeName, uno_Environment ** )
233 {
234 *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
235 }
236 //==================================================================================================
component_getFactory(const sal_Char * pImplName,void * pServiceManager,void * pRegistryKey)237 SAL_DLLPUBLIC_EXPORT void * SAL_CALL component_getFactory(
238 const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
239 {
240 return cppu::component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
241 }
242
243 }
244
245