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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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8 * "License"); you may not use this file except in compliance
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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.
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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()
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()
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 {
88 PyRef object( PyDict_GetItemString(getLoaderModule().get(), (char*)func ) );
89 if( !object.is() )
90 {
91 OUStringBuffer buf;
92 buf.appendAscii( "pythonloader: couldn't find core element pythonloader." );
93 buf.appendAscii( func );
94 throw RuntimeException(buf.makeStringAndClear(),Reference< XInterface >());
95 }
96 return object;
97 }
98
getImplementationName()99 OUString getImplementationName()
100 {
101 return OUString( RTL_CONSTASCII_USTRINGPARAM( "org.openoffice.comp.pyuno.Loader" ) );
102 }
103
getSupportedServiceNames()104 Sequence< OUString > getSupportedServiceNames()
105 {
106 OUString serviceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.loader.Python" ) );
107 return Sequence< OUString > ( &serviceName, 1 );
108 }
109
setPythonHome(const OUString & pythonHome)110 static void setPythonHome ( const OUString & pythonHome )
111 {
112 OUString systemPythonHome;
113 osl_getSystemPathFromFileURL( pythonHome.pData, &(systemPythonHome.pData) );
114 OString o = rtl::OUStringToOString( systemPythonHome, osl_getThreadTextEncoding() );
115 static wchar_t *wpath = Py_DecodeLocale(o.pData->buffer, NULL);
116 if (wpath == NULL) {
117 PyErr_SetString(PyExc_SystemError, "Cannot decode python home path");
118 return;
119 }
120 Py_SetPythonHome(wpath);
121 }
122
prependPythonPath(const OUString & pythonPathBootstrap)123 static void prependPythonPath( const OUString & pythonPathBootstrap )
124 {
125 rtl::OUStringBuffer bufPYTHONPATH( 256 );
126 sal_Int32 nIndex = 0;
127 while( 1 )
128 {
129 sal_Int32 nNew = pythonPathBootstrap.indexOf( ' ', nIndex );
130 OUString fileUrl;
131 if( nNew == -1 )
132 {
133 fileUrl = OUString( &( pythonPathBootstrap[nIndex] ) );
134 }
135 else
136 {
137 fileUrl = OUString( &(pythonPathBootstrap[nIndex]) , nNew - nIndex );
138 }
139 OUString systemPath;
140 osl_getSystemPathFromFileURL( fileUrl.pData, &(systemPath.pData) );
141 bufPYTHONPATH.append( systemPath );
142 bufPYTHONPATH.append( static_cast<sal_Unicode>(SAL_PATHSEPARATOR) );
143 if( nNew == -1 )
144 break;
145 nIndex = nNew + 1;
146 }
147 const char * oldEnv = getenv( "PYTHONPATH");
148 if( oldEnv )
149 bufPYTHONPATH.append( rtl::OUString(oldEnv, strlen(oldEnv), osl_getThreadTextEncoding()) );
150
151 rtl::OUString envVar(RTL_CONSTASCII_USTRINGPARAM("PYTHONPATH"));
152 rtl::OUString envValue(bufPYTHONPATH.makeStringAndClear());
153 osl_setEnvironment(envVar.pData, envValue.pData);
154 }
155
CreateInstance(const Reference<XComponentContext> & ctx)156 Reference< XInterface > CreateInstance( const Reference< XComponentContext > & ctx )
157 {
158 Reference< XInterface > ret;
159
160 if( ! Py_IsInitialized() )
161 {
162 OUString pythonPath;
163 OUString pythonHome;
164 OUString path( RTL_CONSTASCII_USTRINGPARAM( "$OOO_BASE_DIR/program/" SAL_CONFIGFILE("pythonloader.uno" )));
165 rtl::Bootstrap::expandMacros(path); //TODO: detect failure
166 rtl::Bootstrap bootstrap(path);
167
168 // look for pythonhome
169 bootstrap.getFrom( OUString( RTL_CONSTASCII_USTRINGPARAM( "PYUNO_LOADER_PYTHONHOME") ), pythonHome );
170 bootstrap.getFrom( OUString( RTL_CONSTASCII_USTRINGPARAM( "PYUNO_LOADER_PYTHONPATH" ) ) , pythonPath );
171
172 // pythonhome+pythonpath must be set before Py_Initialize(), otherwise there appear warning on the console
173 // sadly, there is no api for setting the pythonpath, we have to use the environment variable
174 if( pythonHome.getLength() )
175 setPythonHome( pythonHome );
176
177 if( pythonPath.getLength() )
178 prependPythonPath( pythonPath );
179
180 // initialize python
181 Py_Initialize();
182
183 PyThreadState *tstate = PyThreadState_Get();
184 PyEval_ReleaseThread( tstate );
185 }
186
187 PyThreadAttach attach( PyInterpreterState_Head() );
188 {
189 if( ! Runtime::isInitialized() )
190 {
191 Runtime::initialize( ctx );
192 }
193 Runtime runtime;
194
195 PyRef pyCtx = runtime.any2PyObject(
196 com::sun::star::uno::makeAny( ctx ) );
197
198 PyRef clazz = getObjectFromLoaderModule( "Loader" );
199 PyRef args ( PyTuple_New( 1 ), SAL_NO_ACQUIRE );
200 PyTuple_SetItem( args.get(), 0 , pyCtx.getAcquired() );
201 PyRef pyInstance( PyObject_CallObject( clazz.get() , args.get() ), SAL_NO_ACQUIRE );
202 runtime.pyObject2Any( pyInstance ) >>= ret;
203 }
204 return ret;
205 }
206
207 }
208
209
210 static struct cppu::ImplementationEntry g_entries[] =
211 {
212 {
213 pyuno_loader::CreateInstance, pyuno_loader::getImplementationName,
214 pyuno_loader::getSupportedServiceNames, cppu::createSingleComponentFactory,
215 0 , 0
216 },
217 { 0, 0, 0, 0, 0, 0 }
218 };
219
220 extern "C"
221 {
222
223 //==================================================================================================
component_getImplementationEnvironment(const sal_Char ** ppEnvTypeName,uno_Environment **)224 SAL_DLLPUBLIC_EXPORT void SAL_CALL component_getImplementationEnvironment(
225 const sal_Char ** ppEnvTypeName, uno_Environment ** )
226 {
227 *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
228 }
229 //==================================================================================================
component_getFactory(const sal_Char * pImplName,void * pServiceManager,void * pRegistryKey)230 SAL_DLLPUBLIC_EXPORT void * SAL_CALL component_getFactory(
231 const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
232 {
233 return cppu::component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
234 }
235
236 }
237