pidl/lib/Parse/Pidl/Samba4/Python.pm

   1 ###################################################
   2 # Python function wrapper generator
   3 # Copyright jelmer@samba.org 2007-2008
   4 # released under the GNU GPL
   5
   6 package Parse::Pidl::Samba4::Python;
   7
   8 use Exporter;
   9 @ISA = qw(Exporter);
  10
  11 use strict;
  12 use Parse::Pidl qw(warning fatal);
  13 use Parse::Pidl::Typelist qw(hasType resolveType getType mapTypeName expandAlias);
  14 use Parse::Pidl::Util qw(has_property ParseExpr unmake_str);
  15 use Parse::Pidl::NDR qw(GetPrevLevel GetNextLevel ContainsDeferred is_charset_array);
  16 use Parse::Pidl::CUtil qw(get_value_of get_pointer_to);
  17 use Parse::Pidl::Samba4 qw(ArrayDynamicallyAllocated);
  18 use Parse::Pidl::Samba4::Header qw(GenerateFunctionInEnv GenerateFunctionOutEnv EnvSubstituteValue GenerateStructEnv);
  19
  20 use vars qw($VERSION);
  21 $VERSION = '0.01';
  22
  23 sub new($) {
  24         my ($class) = @_;
  25         my $self = { res => "", res_hdr => "", tabs => "", constants => {},
  26                      module_methods => [], module_objects => [], ready_types => [],
  27                                  readycode => [] };
  28         bless($self, $class);
  29 }
  30
  31 sub pidl_hdr ($$)
  32 {
  33         my $self = shift;
  34         $self->{res_hdr} .= shift;
  35 }
  36
  37 sub pidl($$)
  38 {
  39         my ($self, $d) = @_;
  40         if ($d) {
  41                 $self->{res} .= $self->{tabs};
  42                 $self->{res} .= $d;
  43         }
  44         $self->{res} .= "\n";
  45 }
  46
  47 sub indent($)
  48 {
  49         my ($self) = @_;
  50         $self->{tabs} .= "\t";
  51 }
  52
  53 sub deindent($)
  54 {
  55         my ($self) = @_;
  56         $self->{tabs} = substr($self->{tabs}, 0, -1);
  57 }
  58
  59 sub Import
  60 {
  61         my $self = shift;
  62         my @imports = @_;
  63         foreach (@imports) {
  64                 $_ = unmake_str($_);
  65                 s/\.idl$//;
  66                 $self->pidl_hdr("#include \"librpc/gen_ndr/py_$_\.h\"\n");
  67         }
  68 }
  69
  70 sub Const($$)
  71 {
  72     my ($self, $const) = @_;
  73         $self->register_constant($const->{NAME}, $const->{DTYPE}, $const->{VALUE});
  74 }
  75
  76 sub register_constant($$$$)
  77 {
  78         my ($self, $name, $type, $value) = @_;
  79
  80         $self->{constants}->{$name} = [$type, $value];
  81 }
  82
  83 sub EnumAndBitmapConsts($$$)
  84 {
  85         my ($self, $name, $d) = @_;
  86
  87         return unless (defined($d->{ELEMENTS}));
  88
  89         foreach my $e (@{$d->{ELEMENTS}}) {
  90                 $e =~ /^([A-Za-z0-9_]+)/;
  91                 my $cname = $1;
  92
  93                 $self->register_constant($cname, $d, $cname);
  94         }
  95 }
  96
  97 sub FromUnionToPythonFunction($$$$)
  98 {
  99         my ($self, $mem_ctx, $type, $switch, $name) = @_;
 100
 101         $self->pidl("PyObject *ret;");
 102         $self->pidl("");
 103
 104         $self->pidl("switch ($switch) {");
 105         $self->indent;
 106
 107         foreach my $e (@{$type->{ELEMENTS}}) {
 108                 $self->pidl("$e->{CASE}:");
 109
 110                 $self->indent;
 111
 112                 if ($e->{NAME}) {
 113                         $self->ConvertObjectToPython($mem_ctx, {}, $e, "$name->$e->{NAME}", "ret", "return NULL;");
 114                 } else {
 115                         $self->pidl("ret = Py_None;");
 116                 }
 117
 118                 $self->pidl("return ret;");
 119                 $self->pidl("");
 120
 121                 $self->deindent;
 122         }
 123
 124         $self->deindent;
 125         $self->pidl("}");
 126
 127         $self->pidl("PyErr_SetString(PyExc_TypeError, \"unknown union level\");");
 128         $self->pidl("return NULL;");
 129 }
 130
 131 sub FromPythonToUnionFunction($$$$$)
 132 {
 133         my ($self, $type, $typename, $switch, $mem_ctx, $name) = @_;
 134
 135         my $has_default = 0;
 136
 137         $self->pidl("$typename *ret = talloc_zero($mem_ctx, $typename);");
 138
 139         $self->pidl("switch ($switch) {");
 140         $self->indent;
 141
 142         foreach my $e (@{$type->{ELEMENTS}}) {
 143                 $self->pidl("$e->{CASE}:");
 144                 if ($e->{CASE} eq "default") { $has_default = 1; }
 145                 $self->indent;
 146                 if ($e->{NAME}) {
 147                         $self->ConvertObjectFromPython({}, $mem_ctx, $e, $name, "ret->$e->{NAME}", "talloc_free(ret); return NULL;");
 148                 }
 149                 $self->pidl("break;");
 150                 $self->deindent;
 151                 $self->pidl("");
 152         }
 153
 154         if (!$has_default) {
 155                 $self->pidl("default:");
 156                 $self->indent;
 157                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"invalid union level value\");");
 158                 $self->pidl("talloc_free(ret);");
 159                 $self->pidl("ret = NULL;");
 160                 $self->deindent;
 161         }
 162
 163         $self->deindent;
 164         $self->pidl("}");
 165         $self->pidl("");
 166         $self->pidl("return ret;");
 167 }
 168
 169 sub PythonStruct($$$$$$)
 170 {
 171         my ($self, $modulename, $prettyname, $name, $cname, $d) = @_;
 172
 173         my $env = GenerateStructEnv($d, "object");
 174
 175         $self->pidl("");
 176
 177         my $getsetters = "NULL";
 178
 179         if ($#{$d->{ELEMENTS}} > -1) {
 180                 foreach my $e (@{$d->{ELEMENTS}}) {
 181                         my $varname = "object->$e->{NAME}";
 182                         $self->pidl("static PyObject *py_$name\_get_$e->{NAME}(PyObject *obj, void *closure)");
 183                         $self->pidl("{");
 184                         $self->indent;
 185                         $self->pidl("$cname *object = py_talloc_get_ptr(obj);");
 186                         $self->pidl("PyObject *py_$e->{NAME};");
 187                         $self->ConvertObjectToPython("py_talloc_get_mem_ctx(obj)", $env, $e, $varname, "py_$e->{NAME}", "return NULL;");
 188                         $self->pidl("return py_$e->{NAME};");
 189                         $self->deindent;
 190                         $self->pidl("}");
 191                         $self->pidl("");
 192
 193                         $self->pidl("static int py_$name\_set_$e->{NAME}(PyObject *py_obj, PyObject *value, void *closure)");
 194                         $self->pidl("{");
 195                         $self->indent;
 196                         $self->pidl("$cname *object = py_talloc_get_ptr(py_obj);");
 197                         my $mem_ctx = "py_talloc_get_mem_ctx(py_obj)";
 198                         my $l = $e->{LEVELS}[0];
 199                         my $nl = GetNextLevel($e, $l);
 200                         if ($l->{TYPE} eq "POINTER" and
 201                                 not ($nl->{TYPE} eq "ARRAY" and ($nl->{IS_FIXED} or is_charset_array($e, $nl))) and
 202                                 not ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE}))) {
 203                                 $self->pidl("talloc_free($varname);");
 204                         }
 205                         $self->ConvertObjectFromPython($env, $mem_ctx, $e, "value", $varname, "return -1;");
 206                         $self->pidl("return 0;");
 207                         $self->deindent;
 208                         $self->pidl("}");
 209                         $self->pidl("");
 210                 }
 211
 212                 $getsetters = "py_$name\_getsetters";
 213                 $self->pidl("static PyGetSetDef ".$getsetters."[] = {");
 214                 $self->indent;
 215                 foreach my $e (@{$d->{ELEMENTS}}) {
 216                         $self->pidl("{ discard_const_p(char, \"$e->{NAME}\"), py_$name\_get_$e->{NAME}, py_$name\_set_$e->{NAME} },");
 217                 }
 218                 $self->pidl("{ NULL }");
 219                 $self->deindent;
 220                 $self->pidl("};");
 221                 $self->pidl("");
 222         }
 223
 224         $self->pidl("static PyObject *py_$name\_new(PyTypeObject *self, PyObject *args, PyObject *kwargs)");
 225         $self->pidl("{");
 226         $self->indent;
 227         $self->pidl("$cname *ret = talloc_zero(NULL, $cname);");
 228         $self->pidl("return py_talloc_import(&$name\_Type, ret);");
 229         $self->deindent;
 230         $self->pidl("}");
 231         $self->pidl("");
 232
 233         my $py_methods = "NULL";
 234
 235         # If the struct is not public there ndr_pull/ndr_push functions will
 236         # be static so not callable from here
 237         if (has_property($d, "public")) {
 238                 $self->pidl("static PyObject *py_$name\_ndr_pack(PyObject *py_obj)");
 239                 $self->pidl("{");
 240                 $self->indent;
 241                 $self->pidl("$cname *object = py_talloc_get_ptr(py_obj);");
 242                 $self->pidl("DATA_BLOB blob;");
 243                 $self->pidl("enum ndr_err_code err;");
 244                 $self->pidl("err = ndr_push_struct_blob(&blob, py_talloc_get_mem_ctx(py_obj), NULL, object, (ndr_push_flags_fn_t)ndr_push_$name);");
 245                 $self->pidl("if (err != NDR_ERR_SUCCESS) {");
 246                 $self->indent;
 247                 $self->pidl("PyErr_SetNdrError(err);");
 248                 $self->pidl("return NULL;");
 249                 $self->deindent;
 250                 $self->pidl("}");
 251                 $self->pidl("");
 252                 $self->pidl("return PyString_FromStringAndSize((char *)blob.data, blob.length);");
 253                 $self->deindent;
 254                 $self->pidl("}");
 255                 $self->pidl("");
 256
 257                 $self->pidl("static PyObject *py_$name\_ndr_unpack(PyObject *py_obj, PyObject *args)");
 258                 $self->pidl("{");
 259                 $self->indent;
 260                 $self->pidl("$cname *object = py_talloc_get_ptr(py_obj);");
 261                 $self->pidl("DATA_BLOB blob;");
 262                 $self->pidl("enum ndr_err_code err;");
 263                 $self->pidl("if (!PyArg_ParseTuple(args, \"s#:__ndr_unpack__\", &blob.data, &blob.length))");
 264                 $self->pidl("\treturn NULL;");
 265                 $self->pidl("");
 266                 $self->pidl("err = ndr_pull_struct_blob_all(&blob, py_talloc_get_mem_ctx(py_obj), NULL, object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 267                 $self->pidl("if (err != NDR_ERR_SUCCESS) {");
 268                 $self->indent;
 269                 $self->pidl("PyErr_SetNdrError(err);");
 270                 $self->pidl("return NULL;");
 271                 $self->deindent;
 272                 $self->pidl("}");
 273                 $self->pidl("");
 274                 $self->pidl("return Py_None;");
 275                 $self->deindent;
 276                 $self->pidl("}");
 277                 $self->pidl("");
 278                 $py_methods = "py_$name\_methods";
 279                 $self->pidl("static PyMethodDef $py_methods\[] = {");
 280                 $self->indent;
 281                 $self->pidl("{ \"__ndr_pack__\", (PyCFunction)py_$name\_ndr_pack, METH_NOARGS, \"S.pack() -> blob\\nNDR pack\" },");
 282                 $self->pidl("{ \"__ndr_unpack__\", (PyCFunction)py_$name\_ndr_unpack, METH_VARARGS, \"S.unpack(blob) -> None\\nNDR unpack\" },");
 283                 $self->pidl("{ NULL, NULL, 0, NULL }");
 284                 $self->deindent;
 285                 $self->pidl("};");
 286                 $self->pidl("");
 287         }
 288
 289         $self->pidl_hdr("PyAPI_DATA(PyTypeObject) $name\_Type;\n");
 290         $self->pidl_hdr("#define $name\_Check(op) PyObject_TypeCheck(op, &$name\_Type)\n");
 291         $self->pidl_hdr("#define $name\_CheckExact(op) ((op)->ob_type == &$name\_Type)\n");
 292         $self->pidl_hdr("\n");
 293         my $docstring = ($self->DocString($d, $name) or "NULL");
 294         my $typeobject = "$name\_Type";
 295         $self->pidl("PyTypeObject $typeobject = {");
 296         $self->indent;
 297         $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 298         $self->pidl(".tp_name = \"$modulename.$prettyname\",");
 299         $self->pidl(".tp_basicsize = sizeof(py_talloc_Object),");
 300         $self->pidl(".tp_dealloc = py_talloc_dealloc,");
 301         $self->pidl(".tp_getset = $getsetters,");
 302         $self->pidl(".tp_repr = py_talloc_default_repr,");
 303         $self->pidl(".tp_doc = $docstring,");
 304         $self->pidl(".tp_methods = $py_methods,");
 305         $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 306         $self->pidl(".tp_new = py_$name\_new,");
 307         $self->deindent;
 308         $self->pidl("};");
 309
 310         $self->pidl("");
 311
 312         return "&$typeobject";
 313 }
 314
 315 sub get_metadata_var($)
 316 {
 317         my ($e) = @_;
 318         sub get_var($) { my $x = shift; $x =~ s/\*//g; return $x; }
 319
 320          if (has_property($e, "length_is")) {
 321                 return get_var($e->{PROPERTIES}->{length_is});
 322          } elsif (has_property($e, "size_is")) {
 323                 return get_var($e->{PROPERTIES}->{size_is});
 324          }
 325
 326          return undef;
 327 }
 328
 329 sub find_metadata_args($)
 330 {
 331         my ($fn) = @_;
 332         my $metadata_args = { in => {}, out => {} };
 333
 334         # Determine arguments that are metadata for other arguments (size_is/length_is)
 335         foreach my $e (@{$fn->{ELEMENTS}}) {
 336                 foreach my $dir (@{$e->{DIRECTION}}) {
 337                          my $main = get_metadata_var($e);
 338                          if ($main) {
 339                                  $metadata_args->{$dir}->{$main} = $e->{NAME};
 340                          }
 341                  }
 342         }
 343
 344         return $metadata_args;
 345 }
 346
 347 sub PythonFunctionUnpackOut($$$)
 348 {
 349         my ($self, $fn, $fnname) = @_;
 350
 351         my $outfnname = "unpack_$fnname\_args_out";
 352         my $signature = "";
 353
 354         my $metadata_args = find_metadata_args($fn);
 355
 356         my $env = GenerateFunctionOutEnv($fn, "r->");
 357         my $result_size = 0;
 358
 359         $self->pidl("static PyObject *$outfnname(struct $fn->{NAME} *r)");
 360         $self->pidl("{");
 361         $self->indent;
 362         $self->pidl("PyObject *result = Py_None;");
 363         foreach my $e (@{$fn->{ELEMENTS}}) {
 364                 next unless (grep(/out/,@{$e->{DIRECTION}}));
 365                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 366                          ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 367                 $self->pidl("PyObject *py_$e->{NAME};");
 368                 $result_size++;
 369         }
 370
 371         if ($fn->{RETURN_TYPE}) {
 372                 $result_size++ unless ($fn->{RETURN_TYPE} eq "WERROR" or $fn->{RETURN_TYPE} eq "NTSTATUS");
 373         }
 374
 375         my $i = 0;
 376
 377         if ($result_size > 1) {
 378                 $self->pidl("result = PyTuple_New($result_size);");
 379                 $signature .= "(";
 380         } elsif ($result_size == 0) {
 381                 $signature .= "None";
 382         }
 383
 384         foreach my $e (@{$fn->{ELEMENTS}}) {
 385                 next if ($metadata_args->{out}->{$e->{NAME}});
 386                 my $py_name = "py_$e->{NAME}";
 387                 if (grep(/out/,@{$e->{DIRECTION}})) {
 388                         $self->ConvertObjectToPython("r", $env, $e, "r->out.$e->{NAME}", $py_name, "return NULL;");
 389                         if ($result_size > 1) {
 390                                 $self->pidl("PyTuple_SetItem(result, $i, $py_name);");
 391                                 $i++;
 392                                 $signature .= "$e->{NAME}, ";
 393                         } else {
 394                                 $self->pidl("result = $py_name;");
 395                                 $signature .= $e->{NAME};
 396                         }
 397                 }
 398         }
 399
 400         if (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "NTSTATUS") {
 401                 $self->handle_ntstatus("r->out.result", "NULL", undef);
 402         } elsif (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "WERROR") {
 403                 $self->handle_werror("r->out.result", "NULL", undef);
 404         } elsif (defined($fn->{RETURN_TYPE})) {
 405                 my $conv = $self->ConvertObjectToPythonData("r", $fn->{RETURN_TYPE}, "r->out.result");
 406                 if ($result_size > 1) {
 407                         $self->pidl("PyTuple_SetItem(result, $i, $conv);");
 408                 } else {
 409                         $self->pidl("result = $conv;");
 410                 }
 411                 $signature .= "result";
 412         }
 413
 414         if (substr($signature, -2) eq ", ") {
 415                 $signature = substr($signature, 0, -2);
 416         }
 417         if ($result_size > 1) {
 418                 $signature .= ")";
 419         }
 420
 421         $self->pidl("return result;");
 422         $self->deindent;
 423         $self->pidl("}");
 424         $self->pidl("");
 425
 426         return ($outfnname, $signature);
 427 }
 428
 429 sub PythonFunctionPackIn($$$)
 430 {
 431         my ($self, $fn, $fnname) = @_;
 432         my $metadata_args = find_metadata_args($fn);
 433
 434         my $infnname = "pack_$fnname\_args_in";
 435
 436         $self->pidl("static bool $infnname(PyObject *args, PyObject *kwargs, struct $fn->{NAME} *r)");
 437         $self->pidl("{");
 438         $self->indent;
 439         my $args_format = "";
 440         my $args_string = "";
 441         my $args_names = "";
 442         my $signature = "";
 443
 444         foreach my $e (@{$fn->{ELEMENTS}}) {
 445                 next unless (grep(/in/,@{$e->{DIRECTION}}));
 446                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 447                                  ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 448                 $self->pidl("PyObject *py_$e->{NAME};");
 449                 $args_format .= "O";
 450                 $args_string .= ", &py_$e->{NAME}";
 451                 $args_names .= "\"$e->{NAME}\", ";
 452                 $signature .= "$e->{NAME}, ";
 453         }
 454         if (substr($signature, -2) eq ", ") {
 455                 $signature = substr($signature, 0, -2);
 456         }
 457         $self->pidl("const char *kwnames[] = {");
 458         $self->indent;
 459         $self->pidl($args_names . "NULL");
 460         $self->deindent;
 461         $self->pidl("};");
 462
 463         $self->pidl("");
 464         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"$args_format:$fn->{NAME}\", discard_const_p(char *, kwnames)$args_string)) {");
 465         $self->indent;
 466         $self->pidl("return false;");
 467         $self->deindent;
 468         $self->pidl("}");
 469         $self->pidl("");
 470
 471         my $env = GenerateFunctionInEnv($fn, "r->");
 472
 473         my $fail = "return false;";
 474         foreach my $e (@{$fn->{ELEMENTS}}) {
 475                 next unless (grep(/in/,@{$e->{DIRECTION}}));
 476                 if ($metadata_args->{in}->{$e->{NAME}}) {
 477                         my $py_var = "py_".$metadata_args->{in}->{$e->{NAME}};
 478                         $self->pidl("PY_CHECK_TYPE(PyList, $py_var, $fail);");
 479                         my $val = "PyList_Size($py_var)";
 480                         if ($e->{LEVELS}[0]->{TYPE} eq "POINTER") {
 481                                 $self->pidl("r->in.$e->{NAME} = talloc_ptrtype(r, r->in.$e->{NAME});");
 482                                 $self->pidl("*r->in.$e->{NAME} = $val;");
 483                         } else {
 484                                 $self->pidl("r->in.$e->{NAME} = $val;");
 485                         }
 486                 } else {
 487                         $self->ConvertObjectFromPython($env, "r", $e, "py_$e->{NAME}", "r->in.$e->{NAME}", $fail);
 488                 }
 489         }
 490         $self->pidl("return true;");
 491         $self->deindent;
 492         $self->pidl("}");
 493         $self->pidl("");
 494         return ($infnname, $signature);
 495 }
 496
 497 sub PythonFunction($$$)
 498 {
 499         my ($self, $fn, $iface, $prettyname) = @_;
 500
 501         my $fnname = "py_$fn->{NAME}";
 502         my $docstring = $self->DocString($fn, $fn->{NAME});
 503
 504         my ($insignature, $outsignature);
 505         my ($infn, $outfn);
 506
 507         if (has_property($fn, "todo")) {
 508                 unless ($docstring) { $docstring = "NULL"; }
 509                 $infn = "NULL";
 510                 $outfn = "NULL";
 511         } else {
 512                 ($infn, $insignature) = $self->PythonFunctionPackIn($fn, $fnname);
 513                 ($outfn, $outsignature) = $self->PythonFunctionUnpackOut($fn, $fnname);
 514                 my $signature = "S.$prettyname($insignature) -> $outsignature";
 515                 if ($docstring) {
 516                         $docstring = "\"$signature\\n\\n\"$docstring";
 517                 } else {
 518                         $docstring = "\"$signature\"";
 519                 }
 520         }
 521
 522         return ($infn, $outfn, $docstring);
 523 }
 524
 525 sub handle_werror($$$$)
 526 {
 527         my ($self, $var, $retval, $mem_ctx) = @_;
 528
 529         $self->pidl("if (!W_ERROR_IS_OK($var)) {");
 530         $self->indent;
 531         $self->pidl("PyErr_SetWERROR($var);");
 532         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
 533         $self->pidl("return $retval;");
 534         $self->deindent;
 535         $self->pidl("}");
 536         $self->pidl("");
 537 }
 538
 539 sub handle_ntstatus($$$$)
 540 {
 541         my ($self, $var, $retval, $mem_ctx) = @_;
 542
 543         $self->pidl("if (NT_STATUS_IS_ERR($var)) {");
 544         $self->indent;
 545         $self->pidl("PyErr_SetNTSTATUS($var);");
 546         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
 547         $self->pidl("return $retval;");
 548         $self->deindent;
 549         $self->pidl("}");
 550         $self->pidl("");
 551 }
 552
 553 sub PythonType($$$$)
 554 {
 555         my ($self, $modulename, $d, $interface, $basename) = @_;
 556
 557         my $actual_ctype = $d;
 558         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
 559                 $actual_ctype = $actual_ctype->{DATA};
 560         }
 561
 562         if ($actual_ctype->{TYPE} eq "STRUCT") {
 563                 my $typeobject;
 564                 my $fn_name = $d->{NAME};
 565
 566                 $fn_name =~ s/^$interface->{NAME}_//;
 567                 $fn_name =~ s/^$basename\_//;
 568
 569
 570                 if ($d->{TYPE} eq "STRUCT") {
 571                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d);
 572                 } else {
 573                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d->{DATA});
 574                 }
 575
 576                 $self->register_module_typeobject($fn_name, $typeobject);
 577         }
 578
 579         if ($d->{TYPE} eq "ENUM" or $d->{TYPE} eq "BITMAP") {
 580                 $self->EnumAndBitmapConsts($d->{NAME}, $d);
 581         }
 582
 583         if ($d->{TYPE} eq "TYPEDEF" and ($d->{DATA}->{TYPE} eq "ENUM" or $d->{DATA}->{TYPE} eq "BITMAP")) {
 584                 $self->EnumAndBitmapConsts($d->{NAME}, $d->{DATA});
 585         }
 586
 587         if ($actual_ctype->{TYPE} eq "UNION" and defined($actual_ctype->{ELEMENTS})) {
 588                 $self->pidl("PyObject *py_import_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, " .mapTypeName($d) . " *in)");
 589                 $self->pidl("{");
 590                 $self->indent;
 591                 $self->FromUnionToPythonFunction("mem_ctx", $actual_ctype, "level", "in") if ($actual_ctype->{TYPE} eq "UNION");
 592                 $self->deindent;
 593                 $self->pidl("}");
 594                 $self->pidl("");
 595
 596                 $self->pidl(mapTypeName($d) . " *py_export_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, PyObject *in)");
 597                 $self->pidl("{");
 598                 $self->indent;
 599                 $self->FromPythonToUnionFunction($actual_ctype, mapTypeName($d), "level", "mem_ctx", "in") if ($actual_ctype->{TYPE} eq "UNION");
 600                 $self->deindent;
 601                 $self->pidl("}");
 602                 $self->pidl("");
 603         }
 604 }
 605
 606 sub DocString($$$)
 607 {
 608         my ($self, $d, $name) = @_;
 609         if (has_property($d, "helpstring")) {
 610                 my $docstring = uc("py_doc_$name");
 611                 $self->pidl("#define $docstring ".has_property($d, "helpstring"));
 612                 return $docstring;
 613         }
 614
 615         return undef;
 616 }
 617
 618 sub Interface($$$)
 619 {
 620         my($self,$interface,$basename) = @_;
 621
 622         $self->pidl_hdr("#ifndef _HEADER_PYTHON_$interface->{NAME}\n");
 623         $self->pidl_hdr("#define _HEADER_PYTHON_$interface->{NAME}\n\n");
 624
 625         $self->pidl_hdr("\n");
 626
 627         $self->Const($_) foreach (@{$interface->{CONSTS}});
 628
 629         foreach my $d (@{$interface->{TYPES}}) {
 630                 next if has_property($d, "nopython");
 631
 632                 $self->PythonType($basename, $d, $interface, $basename);
 633         }
 634
 635         if (defined $interface->{PROPERTIES}->{uuid}) {
 636                 $self->pidl_hdr("PyAPI_DATA(PyTypeObject) $interface->{NAME}_InterfaceType;\n");
 637                 $self->pidl("");
 638
 639                 my @fns = ();
 640
 641                 foreach my $d (@{$interface->{FUNCTIONS}}) {
 642                         next if not defined($d->{OPNUM});
 643                         next if has_property($d, "nopython");
 644
 645                         my $prettyname = $d->{NAME};
 646
 647                         $prettyname =~ s/^$interface->{NAME}_//;
 648                         $prettyname =~ s/^$basename\_//;
 649
 650                         my ($infn, $outfn, $fndocstring) = $self->PythonFunction($d, $interface->{NAME}, $prettyname);
 651
 652                         push (@fns, [$infn, $outfn, "dcerpc_$d->{NAME}", $prettyname, $fndocstring, $d->{OPNUM}]);
 653                 }
 654
 655                 $self->pidl("const struct PyNdrRpcMethodDef py_ndr_$interface->{NAME}\_methods[] = {");
 656                 $self->pidl_hdr("extern const struct PyNdrRpcMethodDef py_ndr_$interface->{NAME}\_methods[];");
 657                 $self->indent;
 658                 foreach my $d (@fns) {
 659                         my ($infn, $outfn, $callfn, $prettyname, $docstring, $opnum) = @$d;
 660                         $self->pidl("{ \"$prettyname\", $docstring, (dcerpc_call_fn)$callfn, (py_data_pack_fn)$infn, (py_data_unpack_fn)$outfn, $opnum, &ndr_table_$interface->{NAME} },");
 661                 }
 662                 $self->pidl("{ NULL }");
 663                 $self->deindent;
 664                 $self->pidl("};");
 665                 $self->pidl("");
 666
 667                 $self->pidl("static PyObject *interface_$interface->{NAME}_new(PyTypeObject *self, PyObject *args, PyObject *kwargs)");
 668                 $self->pidl("{");
 669                 $self->indent;
 670                 $self->pidl("dcerpc_InterfaceObject *ret;");
 671                 $self->pidl("const char *binding_string;");
 672                 $self->pidl("struct cli_credentials *credentials;");
 673                 $self->pidl("struct loadparm_context *lp_ctx = NULL;");
 674                 $self->pidl("PyObject *py_lp_ctx = Py_None, *py_credentials = Py_None, *py_basis = Py_None;");
 675                 $self->pidl("TALLOC_CTX *mem_ctx = NULL;");
 676                 $self->pidl("struct event_context *event_ctx;");
 677                 $self->pidl("NTSTATUS status;");
 678                 $self->pidl("");
 679                 $self->pidl("const char *kwnames[] = {");
 680                 $self->indent;
 681                 $self->pidl("\"binding\", \"lp_ctx\", \"credentials\", \"basis_connection\", NULL");
 682                 $self->deindent;
 683                 $self->pidl("};");
 684                 $self->pidl("extern struct loadparm_context *lp_from_py_object(PyObject *py_obj);");
 685                 $self->pidl("extern struct cli_credentials *cli_credentials_from_py_object(PyObject *py_obj);");
 686                 $self->pidl("");
 687                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"s|OOO:$interface->{NAME}\", discard_const_p(char *, kwnames), &binding_string, &py_lp_ctx, &py_credentials, &py_basis)) {");
 688                 $self->indent;
 689                 $self->pidl("return NULL;");
 690                 $self->deindent;
 691                 $self->pidl("}");
 692                 $self->pidl("");
 693                 $self->pidl("lp_ctx = lp_from_py_object(py_lp_ctx);");
 694                 $self->pidl("if (lp_ctx == NULL) {");
 695                 $self->indent;
 696                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"Expected loadparm context\");");
 697                 $self->pidl("return NULL;");
 698                 $self->deindent;
 699                 $self->pidl("}");
 700                 $self->pidl("");
 701
 702                 $self->pidl("status = dcerpc_init(lp_ctx);");
 703                 $self->pidl("if (!NT_STATUS_IS_OK(status)) {");
 704                 $self->indent;
 705                 $self->pidl("PyErr_SetNTSTATUS(status);");
 706                 $self->pidl("return NULL;");
 707                 $self->deindent;
 708                 $self->pidl("}");
 709
 710                 $self->pidl("credentials = cli_credentials_from_py_object(py_credentials);");
 711                 $self->pidl("if (credentials == NULL) {");
 712                 $self->indent;
 713                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"Expected credentials\");");
 714                 $self->pidl("return NULL;");
 715                 $self->deindent;
 716                 $self->pidl("}");
 717
 718                 $self->pidl("ret = PyObject_New(dcerpc_InterfaceObject, &$interface->{NAME}_InterfaceType);");
 719                 $self->pidl("");
 720                 $self->pidl("event_ctx = event_context_init(mem_ctx);");
 721                 $self->pidl("");
 722
 723                 $self->pidl("if (py_basis != Py_None) {");
 724                 $self->indent;
 725                 $self->pidl("struct dcerpc_pipe *base_pipe;");
 726                 $self->pidl("");
 727                 $self->pidl("if (!PyObject_TypeCheck(py_basis, &dcerpc_InterfaceType)) {");
 728                 $self->indent;
 729                 $self->pidl("PyErr_SetString(PyExc_ValueError, \"basis_connection must be a DCE/RPC connection\");");
 730                 $self->pidl("talloc_free(mem_ctx);");
 731                 $self->pidl("return NULL;");
 732                 $self->deindent;
 733                 $self->pidl("}");
 734                 $self->pidl("");
 735                 $self->pidl("base_pipe = ((dcerpc_InterfaceObject *)py_basis)->pipe;");
 736                 $self->pidl("");
 737                 $self->pidl("status = dcerpc_secondary_context(base_pipe, &ret->pipe, &ndr_table_$interface->{NAME});");
 738                 $self->deindent;
 739                 $self->pidl("} else {");
 740                 $self->indent;
 741                 $self->pidl("status = dcerpc_pipe_connect(NULL, &ret->pipe, binding_string, ");
 742                 $self->pidl("             &ndr_table_$interface->{NAME}, credentials, event_ctx, lp_ctx);");
 743                 $self->deindent;
 744                 $self->pidl("}");
 745                 $self->handle_ntstatus("status", "NULL", "mem_ctx");
 746
 747                 $self->pidl("ret->pipe->conn->flags |= DCERPC_NDR_REF_ALLOC;");
 748
 749                 $self->pidl("return (PyObject *)ret;");
 750                 $self->deindent;
 751                 $self->pidl("}");
 752
 753                 $self->pidl("");
 754
 755                 my $signature =
 756 "\"$interface->{NAME}(binding, lp_ctx=None, credentials=None) -> connection\\n\"
 757 \"\\n\"
 758 \"binding should be a DCE/RPC binding string (for example: ncacn_ip_tcp:127.0.0.1)\\n\"
 759 \"lp_ctx should be a path to a smb.conf file or a param.LoadParm object\\n\"
 760 \"credentials should be a credentials.Credentials object.\\n\\n\"";
 761
 762                 my $docstring = $self->DocString($interface, $interface->{NAME});
 763
 764                 if ($docstring) {
 765                         $docstring = "$signature$docstring";
 766                 } else {
 767                         $docstring = $signature;
 768                 }
 769
 770                 $self->pidl("PyTypeObject $interface->{NAME}_InterfaceType = {");
 771                 $self->indent;
 772                 $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 773                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}\",");
 774                 $self->pidl(".tp_basicsize = sizeof(dcerpc_InterfaceObject),");
 775                 $self->pidl(".tp_base = &dcerpc_InterfaceType,");
 776                 $self->pidl(".tp_doc = $docstring,");
 777                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 778                 $self->pidl(".tp_new = interface_$interface->{NAME}_new,");
 779                 $self->deindent;
 780                 $self->pidl("};");
 781
 782                 $self->pidl("");
 783
 784                 $self->register_module_typeobject($interface->{NAME}, "&$interface->{NAME}_InterfaceType");
 785                 $self->register_module_readycode(["if (!PyInterface_AddNdrRpcMethods(&$interface->{NAME}_InterfaceType, py_ndr_$interface->{NAME}\_methods))", "\treturn;", ""]);
 786         }
 787
 788         $self->pidl_hdr("\n");
 789         $self->pidl_hdr("#endif /* _HEADER_NDR_$interface->{NAME} */\n");
 790 }
 791
 792 sub register_module_method($$$$$)
 793 {
 794         my ($self, $fn_name, $pyfn_name, $flags, $doc) = @_;
 795
 796         push (@{$self->{module_methods}}, [$fn_name, $pyfn_name, $flags, $doc])
 797 }
 798
 799 sub register_module_typeobject($$$)
 800 {
 801         my ($self, $name, $py_name) = @_;
 802
 803         $self->register_module_object($name, "(PyObject *)$py_name");
 804
 805         $self->check_ready_type($py_name);
 806 }
 807
 808 sub check_ready_type($$)
 809 {
 810         my ($self, $py_name) = @_;
 811         push (@{$self->{ready_types}}, $py_name) unless (grep(/^$py_name$/,@{$self->{ready_types}}));
 812 }
 813
 814 sub register_module_readycode($$)
 815 {
 816         my ($self, $code) = @_;
 817
 818         push (@{$self->{readycode}}, @$code);
 819 }
 820
 821 sub register_module_object($$$)
 822 {
 823         my ($self, $name, $py_name) = @_;
 824
 825         push (@{$self->{module_objects}}, [$name, $py_name])
 826 }
 827
 828 sub assign($$$)
 829 {
 830         my ($self, $dest, $src) = @_;
 831         if ($dest =~ /^\&/) {
 832                 $self->pidl("memcpy($dest, $src, sizeof(" . get_value_of($dest) . "));");
 833         } else {
 834                 $self->pidl("$dest = $src;");
 835         }
 836 }
 837
 838 sub ConvertObjectFromPythonData($$$$$$)
 839 {
 840         my ($self, $mem_ctx, $cvar, $ctype, $target, $fail) = @_;
 841
 842         die("undef type for $cvar") unless(defined($ctype));
 843
 844         $ctype = resolveType($ctype);
 845
 846         my $actual_ctype = $ctype;
 847         if ($ctype->{TYPE} eq "TYPEDEF") {
 848                 $actual_ctype = $ctype->{DATA};
 849         }
 850
 851         if ($actual_ctype->{TYPE} eq "ENUM" or $actual_ctype->{TYPE} eq "BITMAP" or
 852                 $actual_ctype->{TYPE} eq "SCALAR" and (
 853                 expandAlias($actual_ctype->{NAME}) =~ /^(u?int[0-9]*|hyper|NTTIME|time_t|NTTIME_hyper|NTTIME_1sec|dlong|udlong|udlongr)$/)) {
 854                 $self->pidl("PY_CHECK_TYPE(PyInt, $cvar, $fail);");
 855                 $self->pidl("$target = PyInt_AsLong($cvar);");
 856                 return;
 857         }
 858
 859         if ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
 860                 $self->pidl("PY_CHECK_TYPE($ctype->{NAME}, $cvar, $fail);");
 861                 $self->assign($target, "py_talloc_get_ptr($cvar)");
 862                 return;
 863         }
 864
 865         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "DATA_BLOB") {
 866                 $self->pidl("$target = data_blob_talloc($mem_ctx, PyString_AsString($cvar), PyString_Size($cvar));");
 867                 return;
 868         }
 869
 870         if ($actual_ctype->{TYPE} eq "SCALAR" and
 871                 ($actual_ctype->{NAME} eq "string" or $actual_ctype->{NAME} eq "nbt_string" or $actual_ctype->{NAME} eq "nbt_name" or $actual_ctype->{NAME} eq "wrepl_nbt_name")) {
 872                 $self->pidl("$target = talloc_strdup($mem_ctx, PyString_AsString($cvar));");
 873                 return;
 874         }
 875
 876         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "ipv4address") {
 877                 $self->pidl("$target = PyString_AsString($cvar);");
 878                 return;
 879                 }
 880
 881
 882         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "NTSTATUS") {
 883                 $self->pidl("$target = NT_STATUS(PyInt_AsLong($cvar));");
 884                 return;
 885         }
 886
 887         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "WERROR") {
 888                 $self->pidl("$target = W_ERROR(PyInt_AsLong($cvar));");
 889                 return;
 890         }
 891
 892         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "string_array") {
 893                 $self->pidl("$target = PyCObject_AsVoidPtr($cvar);");
 894                 return;
 895         }
 896
 897         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "pointer") {
 898                 $self->assign($target, "PyCObject_AsVoidPtr($cvar)");
 899                 return;
 900         }
 901
 902         fatal($ctype, "unknown type $actual_ctype->{TYPE} for ".mapTypeName($ctype) . ": $cvar");
 903
 904 }
 905
 906 sub ConvertObjectFromPythonLevel($$$$$$$$)
 907 {
 908         my ($self, $env, $mem_ctx, $py_var, $e, $l, $var_name, $fail) = @_;
 909         my $nl = GetNextLevel($e, $l);
 910
 911         if ($l->{TYPE} eq "POINTER") {
 912                 if ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
 913                         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail);
 914                         return;
 915                 }
 916                 if ($l->{POINTER_TYPE} ne "ref") {
 917                         $self->pidl("if ($py_var == Py_None) {");
 918                         $self->indent;
 919                         $self->pidl("$var_name = NULL;");
 920                         $self->deindent;
 921                         $self->pidl("} else {");
 922                         $self->indent;
 923                 }
 924                 $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
 925                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, get_value_of($var_name), $fail);
 926                 if ($l->{POINTER_TYPE} ne "ref") {
 927                         $self->deindent;
 928                         $self->pidl("}");
 929                 }
 930         } elsif ($l->{TYPE} eq "ARRAY") {
 931                 my $pl = GetPrevLevel($e, $l);
 932                 if ($pl && $pl->{TYPE} eq "POINTER") {
 933                         $var_name = get_pointer_to($var_name);
 934                 }
 935
 936                 if (is_charset_array($e, $l)) {
 937                         $self->pidl("PY_CHECK_TYPE(PyUnicode, $py_var, $fail);");
 938                         # FIXME: Use Unix charset setting rather than utf-8
 939                         $self->pidl($var_name . " = PyString_AsString(PyUnicode_AsEncodedString($py_var, \"utf-8\", \"ignore\"));");
 940                 } else {
 941                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
 942                         $self->pidl("PY_CHECK_TYPE(PyList, $py_var, $fail);");
 943                         $self->pidl("{");
 944                         $self->indent;
 945                         $self->pidl("int $counter;");
 946                         if (ArrayDynamicallyAllocated($e, $l)) {
 947                                 $self->pidl("$var_name = talloc_array_ptrtype($mem_ctx, $var_name, PyList_Size($py_var));");
 948                         }
 949                         $self->pidl("for ($counter = 0; $counter < PyList_Size($py_var); $counter++) {");
 950                         $self->indent;
 951                         $self->ConvertObjectFromPythonLevel($env, $var_name, "PyList_GetItem($py_var, $counter)", $e, GetNextLevel($e, $l), $var_name."[$counter]", $fail);
 952                         $self->deindent;
 953                         $self->pidl("}");
 954                         $self->deindent;
 955                         $self->pidl("}");
 956                 }
 957         } elsif ($l->{TYPE} eq "DATA") {
 958
 959                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
 960                         $var_name = get_pointer_to($var_name);
 961                 }
 962                 $self->ConvertObjectFromPythonData($mem_ctx, $py_var, $l->{DATA_TYPE}, $var_name, $fail);
 963         } elsif ($l->{TYPE} eq "SWITCH") {
 964                 $var_name = get_pointer_to($var_name);
 965                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
 966                 $self->assign($var_name, "py_export_" . GetNextLevel($e, $l)->{DATA_TYPE} . "($mem_ctx, $switch, $py_var)");
 967         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
 968                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, GetNextLevel($e, $l), $var_name, $fail);
 969         } else {
 970                 die("unknown level type $l->{TYPE}");
 971         }
 972 }
 973
 974 sub ConvertObjectFromPython($$$$$$$)
 975 {
 976         my ($self, $env, $mem_ctx, $ctype, $cvar, $target, $fail) = @_;
 977
 978         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $cvar, $ctype, $ctype->{LEVELS}[0], $target, $fail);
 979 }
 980
 981 sub ConvertScalarToPython($$$)
 982 {
 983         my ($self, $ctypename, $cvar) = @_;
 984
 985         die("expected string for $cvar, not $ctypename") if (ref($ctypename) eq "HASH");
 986
 987         $ctypename = expandAlias($ctypename);
 988
 989         if ($ctypename =~ /^(char|u?int[0-9]*|hyper|dlong|udlong|udlongr|time_t|NTTIME_hyper|NTTIME|NTTIME_1sec)$/) {
 990                 return "PyInt_FromLong($cvar)";
 991         }
 992
 993         if ($ctypename eq "DATA_BLOB") {
 994                 return "PyString_FromStringAndSize((char *)($cvar).data, ($cvar).length)";
 995         }
 996
 997         if ($ctypename eq "NTSTATUS") {
 998                 return "PyErr_FromNTSTATUS($cvar)";
 999         }
1000
1001         if ($ctypename eq "WERROR") {
1002                 return "PyErr_FromWERROR($cvar)";
1003         }
1004
1005         if (($ctypename eq "string" or $ctypename eq "nbt_string" or $ctypename eq "nbt_name" or $ctypename eq "wrepl_nbt_name")) {
1006                 return "PyString_FromString($cvar)";
1007         }
1008
1009         # Not yet supported
1010         if ($ctypename eq "string_array") { return "PyCObject_FromVoidPtr($cvar)"; }
1011         if ($ctypename eq "ipv4address") { return "PyString_FromString($cvar)"; }
1012         if ($ctypename eq "pointer") {
1013                 return "PyCObject_FromVoidPtr($cvar, talloc_free)";
1014         }
1015
1016         die("Unknown scalar type $ctypename");
1017 }
1018
1019 sub ConvertObjectToPythonData($$$$$)
1020 {
1021         my ($self, $mem_ctx, $ctype, $cvar) = @_;
1022
1023         die("undef type for $cvar") unless(defined($ctype));
1024
1025         $ctype = resolveType($ctype);
1026
1027         my $actual_ctype = $ctype;
1028         if ($ctype->{TYPE} eq "TYPEDEF") {
1029                 $actual_ctype = $ctype->{DATA};
1030         }
1031
1032         if ($actual_ctype->{TYPE} eq "ENUM") {
1033                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::enum_type_fn($actual_ctype), $cvar);
1034         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
1035                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::bitmap_type_fn($actual_ctype), $cvar);
1036         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
1037                 return $self->ConvertScalarToPython($actual_ctype->{NAME}, $cvar);
1038         } elsif ($actual_ctype->{TYPE} eq "UNION") {
1039                 fatal($ctype, "union without discriminant: " . mapTypeName($ctype) . ": $cvar");
1040         } elsif ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
1041                 return "py_talloc_import_ex(&$ctype->{NAME}_Type, $mem_ctx, $cvar)";
1042         }
1043
1044         fatal($ctype, "unknown type $actual_ctype->{TYPE} for ".mapTypeName($ctype) . ": $cvar");
1045 }
1046
1047 sub fail_on_null($$$)
1048 {
1049         my ($self, $var, $fail) = @_;
1050         $self->pidl("if ($var == NULL) {");
1051         $self->indent;
1052         $self->pidl($fail);
1053         $self->deindent;
1054         $self->pidl("}");
1055 }
1056
1057 sub ConvertObjectToPythonLevel($$$$$$)
1058 {
1059         my ($self, $mem_ctx, $env, $e, $l, $var_name, $py_var, $fail) = @_;
1060         my $nl = GetNextLevel($e, $l);
1061
1062         if ($l->{TYPE} eq "POINTER") {
1063                 if ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1064                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name, $py_var, $fail);
1065                         return;
1066                 }
1067                 if ($l->{POINTER_TYPE} ne "ref") {
1068                         $self->pidl("if ($var_name == NULL) {");
1069                         $self->indent;
1070                         $self->pidl("$py_var = Py_None;");
1071                         $self->deindent;
1072                         $self->pidl("} else {");
1073                         $self->indent;
1074                 }
1075                 $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, get_value_of($var_name), $py_var, $fail);
1076                 if ($l->{POINTER_TYPE} ne "ref") {
1077                         $self->deindent;
1078                         $self->pidl("}");
1079                 }
1080         } elsif ($l->{TYPE} eq "ARRAY") {
1081                 my $pl = GetPrevLevel($e, $l);
1082                 if ($pl && $pl->{TYPE} eq "POINTER") {
1083                         $var_name = get_pointer_to($var_name);
1084                 }
1085
1086                 if (is_charset_array($e, $l)) {
1087                         # FIXME: Use Unix charset setting rather than utf-8
1088                         $self->pidl("$py_var = PyUnicode_Decode($var_name, strlen($var_name), \"utf-8\", \"ignore\");");
1089                 } else {
1090                         die("No SIZE_IS for array $var_name") unless (defined($l->{SIZE_IS}));
1091                         my $length = $l->{SIZE_IS};
1092                         if (defined($l->{LENGTH_IS})) {
1093                                 $length = $l->{LENGTH_IS};
1094                         }
1095
1096                         $length = ParseExpr($length, $env, $e);
1097                         $self->pidl("$py_var = PyList_New($length);");
1098                         $self->fail_on_null($py_var, $fail);
1099                         $self->pidl("{");
1100                         $self->indent;
1101                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
1102                         $self->pidl("int $counter;");
1103                         $self->pidl("for ($counter = 0; $counter < $length; $counter++) {");
1104                         $self->indent;
1105                         my $member_var = "py_$e->{NAME}_$l->{LEVEL_INDEX}";
1106                         $self->pidl("PyObject *$member_var;");
1107                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, GetNextLevel($e, $l), $var_name."[$counter]", $member_var, $fail);
1108                         $self->pidl("PyList_SetItem($py_var, $counter, $member_var);");
1109                         $self->deindent;
1110                         $self->pidl("}");
1111                         $self->deindent;
1112                         $self->pidl("}");
1113                 }
1114         } elsif ($l->{TYPE} eq "SWITCH") {
1115                 $var_name = get_pointer_to($var_name);
1116                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
1117                 $self->pidl("$py_var = py_import_" . GetNextLevel($e, $l)->{DATA_TYPE} . "($mem_ctx, $switch, $var_name);");
1118                 $self->fail_on_null($py_var, $fail);
1119
1120         } elsif ($l->{TYPE} eq "DATA") {
1121                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
1122                         $var_name = get_pointer_to($var_name);
1123                 }
1124                 my $conv = $self->ConvertObjectToPythonData($mem_ctx, $l->{DATA_TYPE}, $var_name);
1125                 $self->pidl("$py_var = $conv;");
1126         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
1127                 $self->ConvertObjectToPythonLevel($mem_ctx, $env, $e, GetNextLevel($e, $l), $var_name, $py_var, $fail);
1128         } else {
1129                 die("Unknown level type $l->{TYPE} $var_name");
1130         }
1131 }
1132
1133 sub ConvertObjectToPython($$$$$$)
1134 {
1135         my ($self, $mem_ctx, $env, $ctype, $cvar, $py_var, $fail) = @_;
1136
1137         $self->ConvertObjectToPythonLevel($mem_ctx, $env, $ctype, $ctype->{LEVELS}[0], $cvar, $py_var, $fail);
1138 }
1139
1140 sub Parse($$$$$)
1141 {
1142     my($self,$basename,$ndr,$ndr_hdr,$hdr) = @_;
1143
1144     my $py_hdr = $hdr;
1145     $py_hdr =~ s/ndr_([^\/]+)$/py_$1/g;
1146
1147     $self->pidl_hdr("/* header auto-generated by pidl */\n\n");
1148
1149     $self->pidl("
1150 /* Python wrapper functions auto-generated by pidl */
1151 #include \"includes.h\"
1152 #include <Python.h>
1153 #include \"librpc/rpc/dcerpc.h\"
1154 #include \"lib/talloc/pytalloc.h\"
1155 #include \"librpc/rpc/pyrpc.h\"
1156 #include \"lib/events/events.h\"
1157 #include \"$hdr\"
1158 #include \"$ndr_hdr\"
1159 #include \"$py_hdr\"
1160
1161 ");
1162
1163         foreach my $x (@$ndr) {
1164                 ($x->{TYPE} eq "IMPORT") && $self->Import(@{$x->{PATHS}});
1165             ($x->{TYPE} eq "INTERFACE") && $self->Interface($x, $basename);
1166         }
1167
1168         $self->pidl("static PyMethodDef $basename\_methods[] = {");
1169         $self->indent;
1170         foreach (@{$self->{module_methods}}) {
1171                 my ($fn_name, $pyfn_name, $flags, $doc) = @$_;
1172                 $self->pidl("{ \"$fn_name\", (PyCFunction)$pyfn_name, $flags, $doc },");
1173         }
1174
1175         $self->pidl("{ NULL, NULL, 0, NULL }");
1176         $self->deindent;
1177         $self->pidl("};");
1178
1179         $self->pidl("");
1180
1181         $self->pidl("void init$basename(void)");
1182         $self->pidl("{");
1183         $self->indent;
1184         $self->pidl("PyObject *m;");
1185         $self->pidl("");
1186
1187         foreach (@{$self->{ready_types}}) {
1188                 $self->pidl("if (PyType_Ready($_) < 0)");
1189                 $self->pidl("\treturn;");
1190         }
1191
1192         $self->pidl($_) foreach (@{$self->{readycode}});
1193
1194         $self->pidl("");
1195
1196         $self->pidl("m = Py_InitModule3(\"$basename\", $basename\_methods, \"$basename DCE/RPC\");");
1197         $self->pidl("if (m == NULL)");
1198         $self->pidl("\treturn;");
1199         $self->pidl("");
1200         foreach my $name (keys %{$self->{constants}}) {
1201                 my $py_obj;
1202                 my ($ctype, $cvar) = @{$self->{constants}->{$name}};
1203                 if ($cvar =~ /^[0-9]+$/ or $cvar =~ /^0x[0-9a-fA-F]+$/) {
1204                         $py_obj = "PyInt_FromLong($cvar)";
1205                 } elsif ($cvar =~ /^".*"$/) {
1206                         $py_obj = "PyString_FromString($cvar)";
1207                 } else {
1208                         $py_obj = $self->ConvertObjectToPythonData("NULL", expandAlias($ctype), $cvar);
1209                 }
1210
1211                 $self->pidl("PyModule_AddObject(m, \"$name\", $py_obj);");
1212         }
1213
1214         foreach (@{$self->{module_objects}}) {
1215                 my ($object_name, $c_name) = @$_;
1216                 $self->pidl("Py_INCREF($c_name);");
1217                 $self->pidl("PyModule_AddObject(m, \"$object_name\", $c_name);");
1218         }
1219
1220         $self->pidl("");
1221         $self->deindent;
1222         $self->pidl("}");
1223     return ($self->{res_hdr}, $self->{res});
1224 }
1225
1226 1;