source: branches/PublicaMundi_David-devel/zoo-project/zoo-kernel/service_internal_python.c @ 530

Last change on this file since 530 was 505, checked in by djay, 10 years ago

Fixes for metapath definition with prefixed names.

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File size: 15.7 KB
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1/**
2 * Author : Gérald FENOY
3 *
4 * Copyright (c) 2009-2014 GeoLabs SARL
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25#include "service_internal_python.h"
26
27struct module_state {
28    PyObject *error;
29};
30
31#if PY_MAJOR_VERSION >= 3
32#define GETSTATE(m) ((struct module_state*)PyModule_GetState(m))
33#define PyInt_FromLong PyLong_FromLong
34#define PyInt_AsLong PyLong_AsLong
35#define PyString_FromString PyUnicode_FromString
36#define PyString_FromStringAndSize PyUnicode_FromStringAndSize
37#define PyString_Check PyUnicode_Check
38#define PyString_AsString _PyUnicode_AsString
39#define PyString_Size PyUnicode_GetSize
40#else
41#define GETSTATE(m) (&_state)
42static struct module_state _state;
43#endif
44
45static PyObject* ZooError;
46
47PyMethodDef zooMethods[] = {
48  {"_", PythonTranslate, METH_VARARGS, "Translate a string using the zoo-services textdomain."},
49  {"update_status", PythonUpdateStatus, METH_VARARGS, "Update status percentage of a running process."},
50  {NULL, NULL, 0, NULL} /* tempt not the blade, all fear the sentinel */
51};
52
53#if PY_MAJOR_VERSION >= 3
54
55static int myextension_traverse(PyObject *m, visitproc visit, void *arg) {
56  Py_VISIT(GETSTATE(m)->error);
57  return 0;
58}
59
60static int myextension_clear(PyObject *m) {
61  Py_CLEAR(GETSTATE(m)->error);
62  return 0;
63}
64
65static struct PyModuleDef moduledef = {
66  PyModuleDef_HEAD_INIT,
67  "zoo",
68  NULL,
69  sizeof(struct module_state),
70  zooMethods,
71  NULL,
72  myextension_traverse,
73  myextension_clear,
74  NULL
75};
76#endif
77
78PyMODINIT_FUNC init_zoo(){
79  PyObject *tmp,*d;
80  PyObject *module = 
81#if PY_MAJOR_VERSION >= 3
82    PyModule_Create(&moduledef);
83#else
84    Py_InitModule("zoo", zooMethods);
85#endif
86  if (module == NULL){
87#if PY_MAJOR_VERSION >= 3
88    return NULL;
89#else
90    return;
91#endif
92  }
93
94  struct module_state *st = GETSTATE(module);
95
96  d = PyModule_GetDict(module);
97  tmp = PyInt_FromLong(3);
98  PyDict_SetItemString(d, "SERVICE_SUCCEEDED", tmp);
99  Py_DECREF(tmp);
100
101  tmp = PyInt_FromLong(4);
102  PyDict_SetItemString(d, "SERVICE_FAILED", tmp);
103  Py_DECREF(tmp);
104
105  tmp = PyString_FromString(ZOO_VERSION);
106  PyDict_SetItemString(d, "VERSION", tmp);
107  Py_DECREF(tmp);
108
109  ZooError = PyErr_NewException((char*)"zoo.error", NULL, NULL);
110  Py_INCREF(ZooError);
111  PyModule_AddObject(module, "error", ZooError);
112#if PY_MAJOR_VERSION >= 3
113  return module;
114#endif
115}
116
117int zoo_python_support(maps** main_conf,map* request,service* s,maps **real_inputs,maps **real_outputs){
118  char *pythonpath;
119  char *python_path;
120  maps* m=*main_conf;
121  maps* inputs=*real_inputs;
122  maps* outputs=*real_outputs;
123  map* tmp0=getMapFromMaps(*main_conf,"lenv","cwd");
124  char *ntmp=tmp0->value;
125  map* tmp=NULL;
126  int hasToClean=0;
127  tmp=getMapFromMaps(*main_conf,"env","PYTHONPATH");
128#ifdef DEBUG
129  fprintf(stderr,"PYTHON SUPPORT \n");
130#endif
131  if(tmp!=NULL){
132#ifdef DEBUG
133    fprintf(stderr,"PYTHON SUPPORT (%i)\n",strlen(tmp->value));
134#endif
135    python_path=(char*)malloc((strlen(tmp->value))*sizeof(char));
136    sprintf(python_path,"%s",tmp->value);
137    hasToClean=1;
138  }
139  else{
140    python_path=(char*)".";
141  }
142  tmp=NULL;
143  tmp=getMap(request,"metapath");
144  if(tmp!=NULL && strcmp(tmp->value,"")!=0){
145    pythonpath=(char*)malloc((4+strlen(python_path)+strlen(ntmp)+strlen(tmp->value))*sizeof(char));
146#ifdef WIN32
147  sprintf(pythonpath,"%s/%s/;%s",ntmp,tmp->value,python_path);
148#else
149  sprintf(pythonpath,"%s/%s/:%s",ntmp,tmp->value,python_path);
150#endif
151  }
152  else{
153    pythonpath=(char*)malloc((2+strlen(python_path)+strlen(ntmp))*sizeof(char));
154#ifdef WIN32
155    sprintf(pythonpath,"%s;%s",ntmp,python_path);
156#else
157    sprintf(pythonpath,"%s:%s",ntmp,python_path);
158#endif
159  }
160#ifdef DEBUG
161    fprintf(stderr,"PYTHONPATH=%s\n",pythonpath);
162#endif
163#ifndef WIN32
164  setenv("PYTHONPATH",pythonpath,1);
165#else
166  SetEnvironmentVariable("PYTHONPATH",pythonpath);
167  char* toto=(char*)malloc((strlen(pythonpath)+12)*sizeof(char));
168  sprintf(toto,"PYTHONPATH=%s",pythonpath);
169  putenv(toto);
170  free(toto);
171#endif
172  if(hasToClean>0)
173    free(python_path);
174  free(pythonpath);
175
176  PyThreadState *mainstate;
177#if PY_MAJOR_VERSION >= 3
178  PyImport_AppendInittab("zoo", init_zoo);
179#else
180  PyEval_InitThreads();
181#endif
182  Py_Initialize();
183#if PY_MAJOR_VERSION >= 3
184  PyEval_InitThreads();
185  PyImport_ImportModule("zoo");
186#else
187  init_zoo();
188#endif
189  mainstate = PyThreadState_Swap(NULL);
190  PyEval_ReleaseLock();
191  PyGILState_STATE gstate;
192  gstate = PyGILState_Ensure();
193  PyObject *pName, *pModule, *pFunc;
194  tmp=getMap(s->content,"serviceProvider");
195  map* mp=getMap(request,"metapath");
196  if(tmp!=NULL){
197    if(mp!=NULL && strlen(mp->value)>0){
198      char *mps=zStrdup(mp->value);
199      int i,len=strlen(mps);
200      int j=0;
201      for(i=0;i<len;i++){
202        if(mps[i]=='/'){
203          mps[i]='.';
204        }
205      }
206      char *mn=(char*)malloc((strlen(mps)+strlen(tmp->value)+2)*sizeof(char));
207      sprintf(mn,"%s.%s",mps,tmp->value);
208      pName = PyString_FromString(mn);
209      free(mn);
210      free(mps);
211    }
212    else{
213      pName = PyString_FromString(tmp->value);
214      fprintf(stderr,"%s %d",tmp->value,__LINE__);
215    }
216  }
217  else{
218    map* err=createMap("text","Unable to parse serviceProvider please check your zcfg file.");
219    addToMap(err,"code","NoApplicableCode");
220    printExceptionReportResponse(m,err);
221    exit(-1);
222  }
223  pModule = PyImport_Import(pName);
224  int res=SERVICE_FAILED;
225  if (pModule != NULL) {
226    pFunc=PyObject_GetAttrString(pModule,s->name);
227    if (pFunc && PyCallable_Check(pFunc)){
228      PyObject *pValue;
229      PyDictObject* arg1=PyDict_FromMaps(m);
230      PyDictObject* arg2=PyDict_FromMaps(inputs);
231      PyDictObject* arg3=PyDict_FromMaps(outputs);
232      PyObject *pArgs=PyTuple_New(3);
233      if (!pArgs)
234        return -1;
235      PyTuple_SetItem(pArgs, 0, (PyObject *)arg1);
236      PyTuple_SetItem(pArgs, 1, (PyObject *)arg2);
237      PyTuple_SetItem(pArgs, 2, (PyObject *)arg3);
238      pValue = PyObject_CallObject(pFunc, pArgs);
239      if (pValue != NULL) {
240        res=PyInt_AsLong(pValue);
241        freeMaps(real_outputs);
242        free(*real_outputs);
243        freeMaps(main_conf);
244        free(*main_conf);
245        *main_conf=mapsFromPyDict(arg1);
246        *real_outputs=mapsFromPyDict(arg3);
247#ifdef DEBUG
248        fprintf(stderr,"Result of call: %i\n", PyInt_AsLong(pValue));
249        dumpMaps(inputs);
250        dumpMaps(*real_outputs);
251#endif
252      }else{     
253        PyObject *ptype,*pvalue, *ptraceback;
254        PyErr_Fetch(&ptype, &pvalue, &ptraceback);
255        PyObject *trace=PyObject_Str(pvalue);
256        char pbt[10240];
257        if(PyString_Check(trace))
258          sprintf(pbt,"TRACE : %s",PyString_AsString(trace));
259        else
260          fprintf(stderr,"EMPTY TRACE ?");
261        trace=NULL;
262        trace=PyObject_Str(ptype);
263        if(PyString_Check(trace)){
264          char *tpbt=zStrdup(pbt);
265          sprintf(pbt,"%s\n%s",tpbt,PyString_AsString(trace));
266          free(tpbt);
267        }
268        else
269          fprintf(stderr,"EMPTY TRACE ?");
270       
271        char *tpbt=zStrdup(pbt);
272        pName = PyString_FromString("traceback");
273        pModule = PyImport_Import(pName);
274        pArgs = PyTuple_New(1);
275        PyTuple_SetItem(pArgs, 0, ptraceback);
276        pFunc = PyObject_GetAttrString(pModule,"format_tb");
277        pValue = PyObject_CallObject(pFunc, pArgs);
278        trace=NULL;
279        trace=PyObject_Str(pValue);
280        if(PyString_Check(trace))
281          sprintf(pbt,"%s\nUnable to run your python process properly. Please check the following messages : %s",tpbt,PyString_AsString(trace));
282        else
283          sprintf(pbt,"%s \n Unable to run your python process properly. Unable to provide any futher informations.",tpbt);
284        free(tpbt);
285        map* err=createMap("text",pbt);
286        addToMap(err,"code","NoApplicableCode");
287        printExceptionReportResponse(m,err);
288        res=-1;
289      }
290    }
291    else{
292      char tmpS[1024];
293      sprintf(tmpS, "Cannot find the %s function in the %s file.\n", s->name, tmp->value);
294      map* tmps=createMap("text",tmpS);
295      printExceptionReportResponse(m,tmps);
296      res=-1;
297    }
298  } else{
299    char tmpS[1024];
300    sprintf(tmpS, "Python module %s cannot be loaded.\n", tmp->value);
301    map* tmps=createMap("text",tmpS);
302    printExceptionReportResponse(m,tmps);
303    if (PyErr_Occurred())
304      PyErr_Print();
305    PyErr_Clear();
306    res=-1;
307  } 
308#if PY_MAJOR_VERSION < 3
309  PyGILState_Release(gstate);
310  PyEval_AcquireLock();
311#endif
312  PyThreadState_Swap(mainstate);
313  Py_Finalize();
314  return res;
315}
316
317PyDictObject* PyDict_FromMaps(maps* t){
318  PyObject* res=PyDict_New( );
319  maps* tmp=t;
320  while(tmp!=NULL){
321    PyObject* value=(PyObject*)PyDict_FromMap(tmp->content);
322    PyObject* name=PyString_FromString(tmp->name);
323    if(PyDict_SetItem(res,name,value)<0){
324      fprintf(stderr,"Unable to set map value ...");
325      return NULL;
326    }
327    Py_DECREF(name);
328    tmp=tmp->next;
329  } 
330  return (PyDictObject*) res;
331}
332
333PyDictObject* PyDict_FromMap(map* t){
334  PyObject* res=PyDict_New( );
335  map* tmp=t;
336  int hasSize=0;
337  map* isArray=getMap(tmp,"isArray");
338  map* size=getMap(tmp,"size");
339  map* tmap=getMapType(tmp);
340  while(tmp!=NULL){
341    PyObject* name=PyString_FromString(tmp->name);
342    if(strcasecmp(tmp->name,"value")==0) {
343      if(isArray!=NULL){
344        map* len=getMap(tmp,"length");
345        int cnt=atoi(len->value);
346        PyObject* value=PyList_New(cnt);
347        PyObject* mvalue=PyList_New(cnt);
348        PyObject* svalue=PyList_New(cnt);
349
350        for(int i=0;i<cnt;i++){
351         
352          map* vMap=getMapArray(tmp,"value",i);     
353          map* sMap=getMapArray(tmp,"size",i);
354
355          if(vMap!=NULL){
356           
357            PyObject* lvalue;
358            PyObject* lsvalue;
359            if(sMap==NULL){
360              lvalue=PyString_FromString(vMap->value);
361              lsvalue=Py_None;
362            }
363            else{   
364              lvalue=PyString_FromStringAndSize(vMap->value,atoi(sMap->value));
365              lsvalue=PyString_FromString(sMap->value);
366              hasSize=1;
367            }
368
369            if(PyList_SetItem(value,i,lvalue)<0){
370              fprintf(stderr,"Unable to set key value pair...");
371              return NULL;
372            } 
373            if(PyList_SetItem(svalue,i,lsvalue)<0){
374              fprintf(stderr,"Unable to set key value pair...");
375              return NULL;
376            } 
377          }
378         
379          map* mMap=getMapArray(tmp,tmap->name,i);
380          PyObject* lmvalue;
381          if(mMap!=NULL){
382            lmvalue=PyString_FromString(mMap->value);
383          }else
384            lmvalue=Py_None;
385         
386          if(PyList_SetItem(mvalue,i,lmvalue)<0){
387              fprintf(stderr,"Unable to set key value pair...");
388              return NULL;
389          } 
390         
391        }
392
393        if(PyDict_SetItem(res,name,value)<0){
394          fprintf(stderr,"Unable to set key value pair...");
395          return NULL;
396        }
397        if(PyDict_SetItem(res,PyString_FromString(tmap->name),mvalue)<0){
398          fprintf(stderr,"Unable to set key value pair...");
399          return NULL;
400        }
401        if(hasSize>0)
402          if(PyDict_SetItem(res,PyString_FromString("size"),svalue)<0){
403            fprintf(stderr,"Unable to set key value pair...");
404            return NULL;
405          }
406      }
407      else if(size!=NULL){
408        PyObject* value=PyString_FromStringAndSize(tmp->value,atoi(size->value));
409        if(PyDict_SetItem(res,name,value)<0){
410          Py_DECREF(value);
411          fprintf(stderr,"Unable to set key value pair...");
412          return NULL;
413        }
414        Py_DECREF(value);
415      }
416      else{
417        PyObject* value=PyString_FromString(tmp->value);
418        if(PyDict_SetItem(res,name,value)<0){
419          Py_DECREF(value);
420          fprintf(stderr,"Unable to set key value pair...");
421          return NULL;
422        }
423        Py_DECREF(value);
424      }
425    }
426    else{
427      if(PyDict_GetItem(res,name)==NULL){
428        PyObject* value=PyString_FromString(tmp->value);
429        if(PyDict_SetItem(res,name,value)<0){
430          Py_DECREF(value);
431          fprintf(stderr,"Unable to set key value pair...");
432          return NULL;
433        }
434        Py_DECREF(value);
435      }
436    }
437    Py_DECREF(name);
438    tmp=tmp->next;
439  }
440  return (PyDictObject*) res;
441}
442
443maps* mapsFromPyDict(PyDictObject* t){
444  maps* res=NULL;
445  maps* cursor=res;
446  PyObject* list=PyDict_Keys((PyObject*)t);
447  int nb=PyList_Size(list);
448  int i;
449  for(i=0;i<nb;i++){
450#ifdef DEBUG
451    fprintf(stderr,">> parsing maps %d\n",i);
452#endif
453    PyObject* key=PyList_GetItem(list,i);
454    PyObject* value=PyDict_GetItem((PyObject*)t,key);
455#ifdef DEBUG
456    fprintf(stderr,">> DEBUG VALUES : %s => %s\n",
457            PyString_AsString(key),PyString_AsString(value));
458#endif
459    cursor=(maps*)malloc(MAPS_SIZE);
460    cursor->name=PyString_AsString(key);
461    cursor->content=mapFromPyDict((PyDictObject*)value);
462#ifdef DEBUG
463    dumpMap(cursor->content);
464#endif
465    cursor->next=NULL;
466    if(res==NULL)
467      res=dupMaps(&cursor);
468    else
469      addMapsToMaps(&res,cursor);
470    freeMap(&cursor->content);
471    free(cursor->content);
472    free(cursor);
473    Py_DECREF(key);
474#ifdef DEBUG
475    dumpMaps(res);
476    fprintf(stderr,">> parsed maps %d\n",i);
477#endif
478  }
479  Py_DECREF(list);
480  return res;
481}
482
483map* mapFromPyDict(PyDictObject* t){
484  map* res=NULL;
485  PyObject* list=PyDict_Keys((PyObject*)t);
486  int nb=PyList_Size(list);
487  int i;
488  for(i=0;i<nb;i++){
489    PyObject* key=PyList_GetItem(list,i);
490    PyObject* value=PyDict_GetItem((PyObject*)t,key);
491#ifdef DEBUG
492    fprintf(stderr,">> DEBUG VALUES : %s => %s\n",
493            PyString_AsString(key),PyString_AsString(value));
494#endif
495   
496    if(strcmp(PyString_AsString(key),"value")==0){
497      char *buffer=NULL;
498      Py_ssize_t size;
499#if PY_MAJOR_VERSION >= 3
500      buffer=_PyUnicode_AsStringAndSize(value,&size);
501#else
502      PyString_AsStringAndSize(value,&buffer,&size);
503#endif
504      if(res!=NULL){
505        addToMap(res,PyString_AsString(key),"");
506      }else{
507        res=createMap(PyString_AsString(key),"");
508      }
509      map* tmpR=getMap(res,"value");
510      free(tmpR->value);
511      tmpR->value=(char*)malloc((size+1)*sizeof(char));
512      memmove(tmpR->value,buffer,size*sizeof(char));
513      tmpR->value[size]=0;
514      char sin[1024];
515      sprintf(sin,"%ld",size);
516      addToMap(res,"size",sin);
517    }else{
518      char* lkey=PyString_AsString(key);
519      char* lvalue=PyString_AsString(value);
520      if(res!=NULL){
521        if(PyString_Size(value)>0)
522          addToMap(res,lkey,lvalue);
523      }
524      else{
525        if(PyString_Size(value)>0)
526          res=createMap(lkey,lvalue);
527      }
528    }
529  }
530  Py_DECREF(list);
531  return res;
532}
533
534PyObject*
535PythonTranslate(PyObject* self, PyObject* args)
536{
537  char *str;
538  if (!PyArg_ParseTuple(args, "s", &str)){
539#ifdef DEBUG
540    fprintf(stderr,"Incorrect arguments to update status function");
541#endif
542    return NULL;
543  }
544  return PyString_FromString(_ss(str));
545}
546
547PyObject*
548PythonUpdateStatus(PyObject* self, PyObject* args)
549{
550  maps* conf;
551  PyObject* confdict;
552  int istatus;
553  char* status;
554  if (!PyArg_ParseTuple(args, "O!i", &PyDict_Type, &confdict, &istatus)){
555#ifdef DEBUG
556    fprintf(stderr,"Incorrect arguments to update status function");
557#endif
558    return NULL;
559  }
560  if (istatus < 0 || istatus > 100){
561     PyErr_SetString(ZooError, "Status must be a percentage.");
562     return NULL;
563  }else{
564     char tmpStatus[4];
565     snprintf(tmpStatus, 4, "%i", istatus);
566     status = zStrdup(tmpStatus);
567  }
568  /* now update the map */
569  {
570    PyObject* lenv = PyMapping_GetItemString(confdict, (char *)"lenv");
571    if (lenv && PyMapping_Check(lenv)){
572      PyObject* valobj = PyString_FromString(status);
573      PyMapping_SetItemString(lenv, (char *)"status", valobj);
574      Py_DECREF(valobj);
575    }
576    Py_DECREF(lenv);
577  }
578  conf = mapsFromPyDict((PyDictObject*)confdict);
579  if (getMapFromMaps(conf,"lenv","status") != NULL){
580    if(status!=NULL){
581      setMapInMaps(conf,"lenv","status",status);
582      free(status);
583    }
584    else
585      setMapInMaps(conf,"lenv","status","15");
586    _updateStatus(conf);
587  }
588  freeMaps(&conf);
589  free(conf);
590  Py_RETURN_NONE;
591}
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