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 error);
  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 $self = { res => "", res_hdr => "", tabs => "", constants => {},
  26                      module_methods => [], module_objects => [], ready_types => [],
  27                                  module_imports => [], type_imports => {},
  28                                  patch_type_calls => [], readycode => [] };
  29         bless($self, $class);
  30 }
  31
  32 sub pidl_hdr ($$)
  33 {
  34         my $self = shift;
  35         $self->{res_hdr} .= shift;
  36 }
  37
  38 sub pidl($$)
  39 {
  40         my ($self, $d) = @_;
  41         if ($d) {
  42                 if ((!($d =~ /^#/))) {
  43                         $self->{res} .= $self->{tabs};
  44                 }
  45                 $self->{res} .= $d;
  46         }
  47         $self->{res} .= "\n";
  48 }
  49
  50 sub indent($)
  51 {
  52         my ($self) = @_;
  53         $self->{tabs} .= "\t";
  54 }
  55
  56 sub deindent($)
  57 {
  58         my ($self) = @_;
  59         $self->{tabs} = substr($self->{tabs}, 0, -1);
  60 }
  61
  62 sub PrettifyTypeName($$)
  63 {
  64         my ($name, $basename) = @_;
  65
  66         $name =~ s/^$basename\_//;
  67
  68         return $name;
  69 }
  70
  71 sub Import
  72 {
  73         my $self = shift;
  74         my @imports = @_;
  75         foreach (@imports) {
  76                 $_ = unmake_str($_);
  77                 s/\.idl$//;
  78                 $self->pidl_hdr("#include \"librpc/gen_ndr/$_\.h\"\n");
  79                 $self->register_module_import($_);
  80         }
  81 }
  82
  83 sub Const($$)
  84 {
  85     my ($self, $const) = @_;
  86         $self->register_constant($const->{NAME}, $const->{DTYPE}, $const->{VALUE});
  87 }
  88
  89 sub register_constant($$$$)
  90 {
  91         my ($self, $name, $type, $value) = @_;
  92
  93         $self->{constants}->{$name} = [$type, $value];
  94 }
  95
  96 sub EnumAndBitmapConsts($$$)
  97 {
  98         my ($self, $name, $d) = @_;
  99
 100         return unless (defined($d->{ELEMENTS}));
 101
 102         foreach my $e (@{$d->{ELEMENTS}}) {
 103                 $e =~ /^([A-Za-z0-9_]+)/;
 104                 my $cname = $1;
 105
 106                 $self->register_constant($cname, $d, $cname);
 107         }
 108 }
 109
 110 sub FromUnionToPythonFunction($$$$)
 111 {
 112         my ($self, $mem_ctx, $type, $switch, $name) = @_;
 113
 114         $self->pidl("PyObject *ret;");
 115         $self->pidl("");
 116
 117         $self->pidl("switch ($switch) {");
 118         $self->indent;
 119
 120         foreach my $e (@{$type->{ELEMENTS}}) {
 121                 $self->pidl("$e->{CASE}:");
 122
 123                 $self->indent;
 124
 125                 if ($e->{NAME}) {
 126                         $self->ConvertObjectToPython($mem_ctx, {}, $e, "$name->$e->{NAME}", "ret", "return NULL;");
 127                 } else {
 128                         $self->pidl("ret = Py_None;");
 129                         $self->pidl("Py_INCREF(ret);");
 130                 }
 131
 132                 $self->pidl("return ret;");
 133                 $self->pidl("");
 134
 135                 $self->deindent;
 136         }
 137
 138         $self->deindent;
 139         $self->pidl("}");
 140
 141         $self->pidl("PyErr_SetString(PyExc_TypeError, \"unknown union level\");");
 142         $self->pidl("return NULL;");
 143 }
 144
 145 sub FromPythonToUnionFunction($$$$$)
 146 {
 147         my ($self, $type, $typename, $switch, $mem_ctx, $name) = @_;
 148
 149         my $has_default = 0;
 150
 151         $self->pidl("$typename *ret = talloc_zero($mem_ctx, $typename);");
 152
 153         $self->pidl("switch ($switch) {");
 154         $self->indent;
 155
 156         foreach my $e (@{$type->{ELEMENTS}}) {
 157                 $self->pidl("$e->{CASE}:");
 158                 if ($e->{CASE} eq "default") { $has_default = 1; }
 159                 $self->indent;
 160                 if ($e->{NAME}) {
 161                         $self->ConvertObjectFromPython({}, $mem_ctx, $e, $name, "ret->$e->{NAME}", "talloc_free(ret); return NULL;");
 162                 }
 163                 $self->pidl("break;");
 164                 $self->deindent;
 165                 $self->pidl("");
 166         }
 167
 168         if (!$has_default) {
 169                 $self->pidl("default:");
 170                 $self->indent;
 171                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"invalid union level value\");");
 172                 $self->pidl("talloc_free(ret);");
 173                 $self->pidl("ret = NULL;");
 174                 $self->deindent;
 175         }
 176
 177         $self->deindent;
 178         $self->pidl("}");
 179         $self->pidl("");
 180         $self->pidl("return ret;");
 181 }
 182
 183 sub PythonStruct($$$$$$)
 184 {
 185         my ($self, $modulename, $prettyname, $name, $cname, $d) = @_;
 186
 187         my $env = GenerateStructEnv($d, "object");
 188
 189         $self->pidl("");
 190
 191         my $getsetters = "NULL";
 192
 193         if ($#{$d->{ELEMENTS}} > -1) {
 194                 foreach my $e (@{$d->{ELEMENTS}}) {
 195                         my $varname = "object->$e->{NAME}";
 196                         $self->pidl("static PyObject *py_$name\_get_$e->{NAME}(PyObject *obj, void *closure)");
 197                         $self->pidl("{");
 198                         $self->indent;
 199                         $self->pidl("$cname *object = ($cname *)py_talloc_get_ptr(obj);");
 200                         $self->pidl("PyObject *py_$e->{NAME};");
 201                         $self->ConvertObjectToPython("py_talloc_get_mem_ctx(obj)", $env, $e, $varname, "py_$e->{NAME}", "return NULL;");
 202                         $self->pidl("return py_$e->{NAME};");
 203                         $self->deindent;
 204                         $self->pidl("}");
 205                         $self->pidl("");
 206
 207                         $self->pidl("static int py_$name\_set_$e->{NAME}(PyObject *py_obj, PyObject *value, void *closure)");
 208                         $self->pidl("{");
 209                         $self->indent;
 210                         $self->pidl("$cname *object = ($cname *)py_talloc_get_ptr(py_obj);");
 211                         my $mem_ctx = "py_talloc_get_mem_ctx(py_obj)";
 212                         my $l = $e->{LEVELS}[0];
 213                         my $nl = GetNextLevel($e, $l);
 214                         if ($l->{TYPE} eq "POINTER" and
 215                                 not ($nl->{TYPE} eq "ARRAY" and ($nl->{IS_FIXED} or is_charset_array($e, $nl))) and
 216                                 not ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE}))) {
 217                                 $self->pidl("talloc_free($varname);");
 218                         }
 219                         $self->ConvertObjectFromPython($env, $mem_ctx, $e, "value", $varname, "return -1;");
 220                         $self->pidl("return 0;");
 221                         $self->deindent;
 222                         $self->pidl("}");
 223                         $self->pidl("");
 224                 }
 225
 226                 $getsetters = "py_$name\_getsetters";
 227                 $self->pidl("static PyGetSetDef ".$getsetters."[] = {");
 228                 $self->indent;
 229                 foreach my $e (@{$d->{ELEMENTS}}) {
 230                         $self->pidl("{ discard_const_p(char, \"$e->{NAME}\"), py_$name\_get_$e->{NAME}, py_$name\_set_$e->{NAME} },");
 231                 }
 232                 $self->pidl("{ NULL }");
 233                 $self->deindent;
 234                 $self->pidl("};");
 235                 $self->pidl("");
 236         }
 237
 238         $self->pidl("static PyObject *py_$name\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 239         $self->pidl("{");
 240         $self->indent;
 241         $self->pidl("return py_talloc_new($cname, type);");
 242         $self->deindent;
 243         $self->pidl("}");
 244         $self->pidl("");
 245
 246         my $py_methods = "NULL";
 247
 248         # If the struct is not public there ndr_pull/ndr_push functions will
 249         # be static so not callable from here
 250         if (has_property($d, "public")) {
 251                 $self->pidl("static PyObject *py_$name\_ndr_pack(PyObject *py_obj)");
 252                 $self->pidl("{");
 253                 $self->indent;
 254                 $self->pidl("$cname *object = ($cname *)py_talloc_get_ptr(py_obj);");
 255                 $self->pidl("DATA_BLOB blob;");
 256                 $self->pidl("enum ndr_err_code err;");
 257                 $self->pidl("err = ndr_push_struct_blob(&blob, py_talloc_get_mem_ctx(py_obj), object, (ndr_push_flags_fn_t)ndr_push_$name);");
 258                 $self->pidl("if (err != NDR_ERR_SUCCESS) {");
 259                 $self->indent;
 260                 $self->pidl("PyErr_SetNdrError(err);");
 261                 $self->pidl("return NULL;");
 262                 $self->deindent;
 263                 $self->pidl("}");
 264                 $self->pidl("");
 265                 $self->pidl("return PyString_FromStringAndSize((char *)blob.data, blob.length);");
 266                 $self->deindent;
 267                 $self->pidl("}");
 268                 $self->pidl("");
 269
 270                 $self->pidl("static PyObject *py_$name\_ndr_unpack(PyObject *py_obj, PyObject *args)");
 271                 $self->pidl("{");
 272                 $self->indent;
 273                 $self->pidl("$cname *object = ($cname *)py_talloc_get_ptr(py_obj);");
 274                 $self->pidl("DATA_BLOB blob;");
 275                 $self->pidl("enum ndr_err_code err;");
 276                 $self->pidl("if (!PyArg_ParseTuple(args, \"s#:__ndr_unpack__\", &blob.data, &blob.length))");
 277                 $self->pidl("\treturn NULL;");
 278                 $self->pidl("");
 279                 $self->pidl("err = ndr_pull_struct_blob_all(&blob, py_talloc_get_mem_ctx(py_obj), object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 280                 $self->pidl("if (err != NDR_ERR_SUCCESS) {");
 281                 $self->indent;
 282                 $self->pidl("PyErr_SetNdrError(err);");
 283                 $self->pidl("return NULL;");
 284                 $self->deindent;
 285                 $self->pidl("}");
 286                 $self->pidl("");
 287                 $self->pidl("Py_RETURN_NONE;");
 288                 $self->deindent;
 289                 $self->pidl("}");
 290                 $self->pidl("");
 291                 $py_methods = "py_$name\_methods";
 292                 $self->pidl("static PyMethodDef $py_methods\[] = {");
 293                 $self->indent;
 294                 $self->pidl("{ \"__ndr_pack__\", (PyCFunction)py_$name\_ndr_pack, METH_NOARGS, \"S.pack() -> blob\\nNDR pack\" },");
 295                 $self->pidl("{ \"__ndr_unpack__\", (PyCFunction)py_$name\_ndr_unpack, METH_VARARGS, \"S.unpack(blob) -> None\\nNDR unpack\" },");
 296                 $self->pidl("{ NULL, NULL, 0, NULL }");
 297                 $self->deindent;
 298                 $self->pidl("};");
 299                 $self->pidl("");
 300         }
 301
 302         $self->pidl_hdr("staticforward PyTypeObject $name\_Type;\n");
 303         $self->pidl("");
 304         my $docstring = $self->DocString($d, $name);
 305         my $typeobject = "$name\_Type";
 306         $self->pidl("static PyTypeObject $typeobject = {");
 307         $self->indent;
 308         $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 309         $self->pidl(".tp_name = \"$modulename.$prettyname\",");
 310         $self->pidl(".tp_basicsize = sizeof(py_talloc_Object),");
 311         $self->pidl(".tp_dealloc = py_talloc_dealloc,");
 312         $self->pidl(".tp_getset = $getsetters,");
 313         $self->pidl(".tp_repr = py_talloc_default_repr,");
 314         if ($docstring) {
 315                 $self->pidl(".tp_doc = $docstring,");
 316         }
 317         $self->pidl(".tp_methods = $py_methods,");
 318         $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 319         $self->pidl(".tp_new = py_$name\_new,");
 320         $self->deindent;
 321         $self->pidl("};");
 322
 323         $self->pidl("");
 324
 325         return "&$typeobject";
 326 }
 327
 328 sub get_metadata_var($)
 329 {
 330         my ($e) = @_;
 331         sub get_var($) { my $x = shift; $x =~ s/\*//g; return $x; }
 332
 333          if (has_property($e, "length_is")) {
 334                 return get_var($e->{PROPERTIES}->{length_is});
 335          } elsif (has_property($e, "size_is")) {
 336                 return get_var($e->{PROPERTIES}->{size_is});
 337          }
 338
 339          return undef;
 340 }
 341
 342 sub find_metadata_args($)
 343 {
 344         my ($fn) = @_;
 345         my $metadata_args = { in => {}, out => {} };
 346
 347         # Determine arguments that are metadata for other arguments (size_is/length_is)
 348         foreach my $e (@{$fn->{ELEMENTS}}) {
 349                 foreach my $dir (@{$e->{DIRECTION}}) {
 350                          my $main = get_metadata_var($e);
 351                          if ($main) {
 352                                  $metadata_args->{$dir}->{$main} = $e->{NAME};
 353                          }
 354                  }
 355         }
 356
 357         return $metadata_args;
 358 }
 359
 360 sub PythonFunctionUnpackOut($$$)
 361 {
 362         my ($self, $fn, $fnname) = @_;
 363
 364         my $outfnname = "unpack_$fnname\_args_out";
 365         my $signature = "";
 366
 367         my $metadata_args = find_metadata_args($fn);
 368
 369         my $env = GenerateFunctionOutEnv($fn, "r->");
 370         my $result_size = 0;
 371
 372         $self->pidl("static PyObject *$outfnname(struct $fn->{NAME} *r)");
 373         $self->pidl("{");
 374         $self->indent;
 375         $self->pidl("PyObject *result;");
 376         foreach my $e (@{$fn->{ELEMENTS}}) {
 377                 next unless (grep(/out/,@{$e->{DIRECTION}}));
 378                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 379                          ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 380                 $self->pidl("PyObject *py_$e->{NAME};");
 381                 $result_size++;
 382         }
 383
 384         if ($fn->{RETURN_TYPE}) {
 385                 $result_size++ unless ($fn->{RETURN_TYPE} eq "WERROR" or $fn->{RETURN_TYPE} eq "NTSTATUS");
 386         }
 387
 388         my $i = 0;
 389
 390         if ($result_size > 1) {
 391                 $self->pidl("result = PyTuple_New($result_size);");
 392                 $signature .= "(";
 393         } elsif ($result_size == 0) {
 394                 $self->pidl("result = Py_None;");
 395                 $self->pidl("Py_INCREF(result);");
 396                 $signature .= "None";
 397         }
 398
 399         foreach my $e (@{$fn->{ELEMENTS}}) {
 400                 next if ($metadata_args->{out}->{$e->{NAME}});
 401                 my $py_name = "py_$e->{NAME}";
 402                 if (grep(/out/,@{$e->{DIRECTION}})) {
 403                         $self->ConvertObjectToPython("r", $env, $e, "r->out.$e->{NAME}", $py_name, "return NULL;");
 404                         if ($result_size > 1) {
 405                                 $self->pidl("PyTuple_SetItem(result, $i, $py_name);");
 406                                 $i++;
 407                                 $signature .= "$e->{NAME}, ";
 408                         } else {
 409                                 $self->pidl("result = $py_name;");
 410                                 $signature .= $e->{NAME};
 411                         }
 412                 }
 413         }
 414
 415         if (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "NTSTATUS") {
 416                 $self->handle_ntstatus("r->out.result", "NULL", undef);
 417         } elsif (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "WERROR") {
 418                 $self->handle_werror("r->out.result", "NULL", undef);
 419         } elsif (defined($fn->{RETURN_TYPE})) {
 420                 my $conv = $self->ConvertObjectToPythonData("r", $fn->{RETURN_TYPE}, "r->out.result", $fn);
 421                 if ($result_size > 1) {
 422                         $self->pidl("PyTuple_SetItem(result, $i, $conv);");
 423                 } else {
 424                         $self->pidl("result = $conv;");
 425                 }
 426                 $signature .= "result";
 427         }
 428
 429         if (substr($signature, -2) eq ", ") {
 430                 $signature = substr($signature, 0, -2);
 431         }
 432         if ($result_size > 1) {
 433                 $signature .= ")";
 434         }
 435
 436         $self->pidl("return result;");
 437         $self->deindent;
 438         $self->pidl("}");
 439         $self->pidl("");
 440
 441         return ($outfnname, $signature);
 442 }
 443
 444 sub PythonFunctionPackIn($$$)
 445 {
 446         my ($self, $fn, $fnname) = @_;
 447         my $metadata_args = find_metadata_args($fn);
 448
 449         my $infnname = "pack_$fnname\_args_in";
 450
 451         $self->pidl("static bool $infnname(PyObject *args, PyObject *kwargs, struct $fn->{NAME} *r)");
 452         $self->pidl("{");
 453         $self->indent;
 454         my $args_format = "";
 455         my $args_string = "";
 456         my $args_names = "";
 457         my $signature = "";
 458
 459         foreach my $e (@{$fn->{ELEMENTS}}) {
 460                 next unless (grep(/in/,@{$e->{DIRECTION}}));
 461                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 462                                  ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 463                 $self->pidl("PyObject *py_$e->{NAME};");
 464                 $args_format .= "O";
 465                 $args_string .= ", &py_$e->{NAME}";
 466                 $args_names .= "\"$e->{NAME}\", ";
 467                 $signature .= "$e->{NAME}, ";
 468         }
 469         if (substr($signature, -2) eq ", ") {
 470                 $signature = substr($signature, 0, -2);
 471         }
 472         $self->pidl("const char *kwnames[] = {");
 473         $self->indent;
 474         $self->pidl($args_names . "NULL");
 475         $self->deindent;
 476         $self->pidl("};");
 477
 478         $self->pidl("");
 479         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"$args_format:$fn->{NAME}\", discard_const_p(char *, kwnames)$args_string)) {");
 480         $self->indent;
 481         $self->pidl("return false;");
 482         $self->deindent;
 483         $self->pidl("}");
 484         $self->pidl("");
 485
 486         my $env = GenerateFunctionInEnv($fn, "r->");
 487
 488         my $fail = "return false;";
 489         foreach my $e (@{$fn->{ELEMENTS}}) {
 490                 next unless (grep(/in/,@{$e->{DIRECTION}}));
 491                 if ($metadata_args->{in}->{$e->{NAME}}) {
 492                         my $py_var = "py_".$metadata_args->{in}->{$e->{NAME}};
 493                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
 494                         my $val = "PyList_Size($py_var)";
 495                         if ($e->{LEVELS}[0]->{TYPE} eq "POINTER") {
 496                                 $self->pidl("r->in.$e->{NAME} = talloc_ptrtype(r, r->in.$e->{NAME});");
 497                                 $self->pidl("*r->in.$e->{NAME} = $val;");
 498                         } else {
 499                                 $self->pidl("r->in.$e->{NAME} = $val;");
 500                         }
 501                 } else {
 502                         $self->ConvertObjectFromPython($env, "r", $e, "py_$e->{NAME}", "r->in.$e->{NAME}", $fail);
 503                 }
 504         }
 505         $self->pidl("return true;");
 506         $self->deindent;
 507         $self->pidl("}");
 508         $self->pidl("");
 509         return ($infnname, $signature);
 510 }
 511
 512 sub PythonFunction($$$)
 513 {
 514         my ($self, $fn, $iface, $prettyname) = @_;
 515
 516         my $fnname = "py_$fn->{NAME}";
 517         my $docstring = $self->DocString($fn, $fn->{NAME});
 518
 519         my ($insignature, $outsignature);
 520         my ($infn, $outfn);
 521
 522         if (has_property($fn, "todo")) {
 523                 unless ($docstring) { $docstring = "NULL"; }
 524                 $infn = "NULL";
 525                 $outfn = "NULL";
 526         } else {
 527                 ($infn, $insignature) = $self->PythonFunctionPackIn($fn, $fnname);
 528                 ($outfn, $outsignature) = $self->PythonFunctionUnpackOut($fn, $fnname);
 529                 my $signature = "S.$prettyname($insignature) -> $outsignature";
 530                 if ($docstring) {
 531                         $docstring = "\"$signature\\n\\n\"$docstring";
 532                 } else {
 533                         $docstring = "\"$signature\"";
 534                 }
 535         }
 536
 537         return ($infn, $outfn, $docstring);
 538 }
 539
 540 sub handle_werror($$$$)
 541 {
 542         my ($self, $var, $retval, $mem_ctx) = @_;
 543
 544         $self->pidl("if (!W_ERROR_IS_OK($var)) {");
 545         $self->indent;
 546         $self->pidl("PyErr_SetWERROR($var);");
 547         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
 548         $self->pidl("return $retval;");
 549         $self->deindent;
 550         $self->pidl("}");
 551         $self->pidl("");
 552 }
 553
 554 sub handle_ntstatus($$$$)
 555 {
 556         my ($self, $var, $retval, $mem_ctx) = @_;
 557
 558         $self->pidl("if (NT_STATUS_IS_ERR($var)) {");
 559         $self->indent;
 560         $self->pidl("PyErr_SetNTSTATUS($var);");
 561         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
 562         $self->pidl("return $retval;");
 563         $self->deindent;
 564         $self->pidl("}");
 565         $self->pidl("");
 566 }
 567
 568 sub PythonType($$$$)
 569 {
 570         my ($self, $modulename, $d, $interface, $basename) = @_;
 571
 572         my $actual_ctype = $d;
 573         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
 574                 $actual_ctype = $actual_ctype->{DATA};
 575         }
 576
 577         if ($actual_ctype->{TYPE} eq "STRUCT") {
 578                 my $typeobject;
 579                 my $fn_name = PrettifyTypeName($d->{NAME}, $basename);
 580
 581                 if ($d->{TYPE} eq "STRUCT") {
 582                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d);
 583                 } else {
 584                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d->{DATA});
 585                 }
 586
 587                 $self->register_module_typeobject($fn_name, $typeobject);
 588         }
 589
 590         if ($d->{TYPE} eq "ENUM" or $d->{TYPE} eq "BITMAP") {
 591                 $self->EnumAndBitmapConsts($d->{NAME}, $d);
 592         }
 593
 594         if ($d->{TYPE} eq "TYPEDEF" and ($d->{DATA}->{TYPE} eq "ENUM" or $d->{DATA}->{TYPE} eq "BITMAP")) {
 595                 $self->EnumAndBitmapConsts($d->{NAME}, $d->{DATA});
 596         }
 597
 598         if ($actual_ctype->{TYPE} eq "UNION" and defined($actual_ctype->{ELEMENTS})) {
 599                 $self->pidl("PyObject *py_import_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, " .mapTypeName($d) . " *in)");
 600                 $self->pidl("{");
 601                 $self->indent;
 602                 $self->FromUnionToPythonFunction("mem_ctx", $actual_ctype, "level", "in") if ($actual_ctype->{TYPE} eq "UNION");
 603                 $self->deindent;
 604                 $self->pidl("}");
 605                 $self->pidl("");
 606
 607                 $self->pidl(mapTypeName($d) . " *py_export_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, PyObject *in)");
 608                 $self->pidl("{");
 609                 $self->indent;
 610                 $self->FromPythonToUnionFunction($actual_ctype, mapTypeName($d), "level", "mem_ctx", "in") if ($actual_ctype->{TYPE} eq "UNION");
 611                 $self->deindent;
 612                 $self->pidl("}");
 613                 $self->pidl("");
 614         }
 615 }
 616
 617 sub DocString($$$)
 618 {
 619         my ($self, $d, $name) = @_;
 620         if (has_property($d, "helpstring")) {
 621                 my $docstring = uc("py_doc_$name");
 622                 $self->pidl("#define $docstring ".has_property($d, "helpstring"));
 623                 return $docstring;
 624         }
 625
 626         return undef;
 627 }
 628
 629 sub Interface($$$)
 630 {
 631         my($self,$interface,$basename) = @_;
 632
 633         if (has_property($interface, "pyhelper")) {
 634                 $self->pidl("#include \"".unmake_str($interface->{PROPERTIES}->{pyhelper})."\"\n");
 635         }
 636
 637         $self->Const($_) foreach (@{$interface->{CONSTS}});
 638
 639         foreach my $d (@{$interface->{TYPES}}) {
 640                 next if has_property($d, "nopython");
 641
 642                 $self->PythonType($basename, $d, $interface, $basename);
 643         }
 644
 645         if (defined $interface->{PROPERTIES}->{uuid}) {
 646                 $self->pidl_hdr("staticforward PyTypeObject $interface->{NAME}_InterfaceType;\n");
 647                 $self->pidl("");
 648
 649                 my @fns = ();
 650
 651                 foreach my $d (@{$interface->{FUNCTIONS}}) {
 652                         next if not defined($d->{OPNUM});
 653                         next if has_property($d, "nopython");
 654                         next if has_property($d, "todo");
 655
 656                         my $prettyname = $d->{NAME};
 657
 658                         $prettyname =~ s/^$interface->{NAME}_//;
 659                         $prettyname =~ s/^$basename\_//;
 660
 661                         my ($infn, $outfn, $fndocstring) = $self->PythonFunction($d, $interface->{NAME}, $prettyname);
 662
 663                         push (@fns, [$infn, $outfn, "dcerpc_$d->{NAME}_r", $prettyname, $fndocstring, $d->{OPNUM}]);
 664                 }
 665
 666                 $self->pidl("const struct PyNdrRpcMethodDef py_ndr_$interface->{NAME}\_methods[] = {");
 667                 $self->indent;
 668                 foreach my $d (@fns) {
 669                         my ($infn, $outfn, $callfn, $prettyname, $docstring, $opnum) = @$d;
 670                         $self->pidl("{ \"$prettyname\", $docstring, (py_dcerpc_call_fn)$callfn, (py_data_pack_fn)$infn, (py_data_unpack_fn)$outfn, $opnum, &ndr_table_$interface->{NAME} },");
 671                 }
 672                 $self->pidl("{ NULL }");
 673                 $self->deindent;
 674                 $self->pidl("};");
 675                 $self->pidl("");
 676
 677                 $self->pidl("static PyObject *interface_$interface->{NAME}_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 678                 $self->pidl("{");
 679                 $self->indent;
 680                 $self->pidl("return py_dcerpc_interface_init_helper(type, args, kwargs, &ndr_table_$interface->{NAME});");
 681                 $self->deindent;
 682                 $self->pidl("}");
 683
 684                 $self->pidl("");
 685
 686                 my $signature =
 687 "\"$interface->{NAME}(binding, lp_ctx=None, credentials=None) -> connection\\n\"
 688 \"\\n\"
 689 \"binding should be a DCE/RPC binding string (for example: ncacn_ip_tcp:127.0.0.1)\\n\"
 690 \"lp_ctx should be a path to a smb.conf file or a param.LoadParm object\\n\"
 691 \"credentials should be a credentials.Credentials object.\\n\\n\"";
 692
 693                 my $docstring = $self->DocString($interface, $interface->{NAME});
 694
 695                 if ($docstring) {
 696                         $docstring = "$signature$docstring";
 697                 } else {
 698                         $docstring = $signature;
 699                 }
 700
 701                 $self->pidl("static PyTypeObject $interface->{NAME}_InterfaceType = {");
 702                 $self->indent;
 703                 $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 704                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}\",");
 705                 $self->pidl(".tp_basicsize = sizeof(dcerpc_InterfaceObject),");
 706                 $self->pidl(".tp_base = &dcerpc_InterfaceType,");
 707                 $self->pidl(".tp_doc = $docstring,");
 708                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 709                 $self->pidl(".tp_new = interface_$interface->{NAME}_new,");
 710                 $self->deindent;
 711                 $self->pidl("};");
 712
 713                 $self->pidl("");
 714
 715                 $self->register_module_typeobject($interface->{NAME}, "&$interface->{NAME}_InterfaceType");
 716                 $self->register_module_readycode(["if (!PyInterface_AddNdrRpcMethods(&$interface->{NAME}_InterfaceType, py_ndr_$interface->{NAME}\_methods))", "\treturn;", ""]);
 717         }
 718
 719         $self->pidl_hdr("\n");
 720 }
 721
 722 sub register_module_method($$$$$)
 723 {
 724         my ($self, $fn_name, $pyfn_name, $flags, $doc) = @_;
 725
 726         push (@{$self->{module_methods}}, [$fn_name, $pyfn_name, $flags, $doc])
 727 }
 728
 729 sub register_module_typeobject($$$)
 730 {
 731         my ($self, $name, $py_name) = @_;
 732
 733         $self->register_module_object($name, "(PyObject *)(void *)$py_name");
 734
 735         $self->check_ready_type($py_name);
 736
 737         $self->register_patch_type_call($name, $py_name);
 738 }
 739
 740 sub check_ready_type($$)
 741 {
 742         my ($self, $py_name) = @_;
 743         push (@{$self->{ready_types}}, $py_name) unless (grep(/^$py_name$/,@{$self->{ready_types}}));
 744 }
 745
 746 sub register_module_import($$)
 747 {
 748         my ($self, $basename) = @_;
 749
 750         push (@{$self->{module_imports}}, $basename) unless (grep(/^$basename$/,@{$self->{module_imports}}));
 751 }
 752
 753 sub use_type_variable($$)
 754 {
 755         my ($self, $orig_ctype) = @_;
 756         # FIXME: Have a global lookup table for types that look different on the
 757         # wire than they are named in C?
 758         if ($orig_ctype->{NAME} eq "dom_sid2") {
 759                 $orig_ctype->{NAME} = "dom_sid";
 760         }
 761         my $ctype = resolveType($orig_ctype);
 762         unless (defined($ctype->{BASEFILE})) {
 763                 return undef;
 764         }
 765         # If this is an external type, make sure we do the right imports.
 766         if (($ctype->{BASEFILE} ne $self->{BASENAME})) {
 767                 $self->register_module_import($ctype->{BASEFILE});
 768                 unless (defined($self->{type_imports}->{$ctype->{NAME}})) {
 769                         $self->{type_imports}->{$ctype->{NAME}} = $ctype->{BASEFILE};
 770                 }
 771                 return "$ctype->{NAME}_Type";
 772         }
 773         return "&$ctype->{NAME}_Type";
 774 }
 775
 776 sub register_patch_type_call($$$)
 777 {
 778         my ($self, $typename, $cvar) = @_;
 779
 780         push(@{$self->{patch_type_calls}}, [$typename, $cvar]);
 781
 782 }
 783
 784 sub register_module_readycode($$)
 785 {
 786         my ($self, $code) = @_;
 787
 788         push (@{$self->{readycode}}, @$code);
 789 }
 790
 791 sub register_module_object($$$)
 792 {
 793         my ($self, $name, $py_name) = @_;
 794
 795         push (@{$self->{module_objects}}, [$name, $py_name])
 796 }
 797
 798 sub assign($$$)
 799 {
 800         my ($self, $dest, $src) = @_;
 801         if ($dest =~ /^\&/ and $src eq "NULL") {
 802                 $self->pidl("memset($dest, 0, sizeof(" . get_value_of($dest) . "));");
 803         } elsif ($dest =~ /^\&/) {
 804                 $self->pidl("memcpy($dest, $src, sizeof(" . get_value_of($dest) . "));");
 805         } else {
 806                 $self->pidl("$dest = $src;");
 807         }
 808 }
 809
 810 sub ConvertObjectFromPythonData($$$$$$;$)
 811 {
 812         my ($self, $mem_ctx, $cvar, $ctype, $target, $fail, $location) = @_;
 813
 814         fatal($location, "undef type for $cvar") unless(defined($ctype));
 815
 816         $ctype = resolveType($ctype);
 817
 818         my $actual_ctype = $ctype;
 819         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
 820                 $actual_ctype = $actual_ctype->{DATA};
 821         }
 822
 823         if ($actual_ctype->{TYPE} eq "ENUM" or $actual_ctype->{TYPE} eq "BITMAP") {
 824                 $self->pidl("PY_CHECK_TYPE(&PyInt_Type, $cvar, $fail);");
 825                 $self->pidl("$target = PyInt_AsLong($cvar);");
 826                 return;
 827         }
 828         if ($actual_ctype->{TYPE} eq "SCALAR" ) {
 829                 if (expandAlias($actual_ctype->{NAME}) =~ /^(u?int64|hyper|dlong|udlong|udlongr|NTTIME_hyper|NTTIME|NTTIME_1sec)$/) {
 830                         $self->pidl("if (PyObject_TypeCheck($cvar, &PyLong_Type)) {");
 831                         $self->indent;
 832                         $self->pidl("$target = PyLong_AsLongLong($cvar);");
 833                         $self->deindent;
 834                         $self->pidl("} else {");
 835                         $self->indent;
 836                         $self->pidl("if (PyObject_TypeCheck($cvar, &PyInt_Type)) {");
 837                         $self->indent;
 838                         $self->pidl("$target = PyInt_AsLong($cvar);");
 839                         $self->deindent;
 840                         $self->pidl("} else {");
 841                         $self->indent;
 842                         $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected type %s or %s\",\\");
 843                         $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name);");
 844                         $self->pidl($fail);
 845                         $self->deindent;
 846                         $self->pidl("}");
 847                         $self->deindent;
 848                         $self->pidl("}");
 849                         return;
 850                 }
 851                 if (expandAlias($actual_ctype->{NAME}) =~ /^(char|u?int[0-9]*|time_t)$/) {
 852                         $self->pidl("PY_CHECK_TYPE(&PyInt_Type, $cvar, $fail);");
 853                         $self->pidl("$target = PyInt_AsLong($cvar);");
 854                         return;
 855                 }
 856         }
 857
 858         if ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
 859                 my $ctype_name = $self->use_type_variable($ctype);
 860                 unless (defined ($ctype_name)) {
 861                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
 862                         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Can not convert C Type " . mapTypeName($ctype) . " to Python\");");
 863                         return;
 864                 }
 865                 $self->pidl("PY_CHECK_TYPE($ctype_name, $cvar, $fail);");
 866                 $self->assign($target, "(".mapTypeName($ctype)." *)py_talloc_get_ptr($cvar)");
 867                 return;
 868         }
 869
 870         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "DATA_BLOB") {
 871                 $self->pidl("$target = data_blob_talloc($mem_ctx, PyString_AsString($cvar), PyString_Size($cvar));");
 872                 return;
 873         }
 874
 875         if ($actual_ctype->{TYPE} eq "SCALAR" and
 876                 ($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")) {
 877                 $self->pidl("$target = talloc_strdup($mem_ctx, PyString_AsString($cvar));");
 878                 return;
 879         }
 880
 881         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "ipv4address") {
 882                 $self->pidl("$target = PyString_AsString($cvar);");
 883                 return;
 884                 }
 885
 886         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "dnsp_name") {
 887                 $self->pidl("$target = PyString_AsString($cvar);");
 888                 return;
 889                 }
 890
 891
 892         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "NTSTATUS") {
 893                 $self->pidl("$target = NT_STATUS(PyInt_AsLong($cvar));");
 894                 return;
 895         }
 896
 897         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "WERROR") {
 898                 $self->pidl("$target = W_ERROR(PyInt_AsLong($cvar));");
 899                 return;
 900         }
 901
 902         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "string_array") {
 903                 $self->pidl("$target = PyCObject_AsVoidPtr($cvar);");
 904                 return;
 905         }
 906
 907         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "pointer") {
 908                 $self->assign($target, "PyCObject_AsVoidPtr($cvar)");
 909                 return;
 910         }
 911
 912         fatal($location, "unknown type `$actual_ctype->{TYPE}' for ".mapTypeName($ctype) . ": $cvar");
 913
 914 }
 915
 916 sub ConvertObjectFromPythonLevel($$$$$$$$)
 917 {
 918         my ($self, $env, $mem_ctx, $py_var, $e, $l, $var_name, $fail) = @_;
 919         my $nl = GetNextLevel($e, $l);
 920
 921         if ($l->{TYPE} eq "POINTER") {
 922                 if ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
 923                         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail);
 924                         return;
 925                 }
 926                 if ($l->{POINTER_TYPE} ne "ref") {
 927                         $self->pidl("if ($py_var == Py_None) {");
 928                         $self->indent;
 929                         $self->pidl("$var_name = NULL;");
 930                         $self->deindent;
 931                         $self->pidl("} else {");
 932                         $self->indent;
 933                 }
 934                 $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
 935                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, get_value_of($var_name), $fail);
 936                 if ($l->{POINTER_TYPE} ne "ref") {
 937                         $self->deindent;
 938                         $self->pidl("}");
 939                 }
 940         } elsif ($l->{TYPE} eq "ARRAY") {
 941                 my $pl = GetPrevLevel($e, $l);
 942                 if ($pl && $pl->{TYPE} eq "POINTER") {
 943                         $var_name = get_pointer_to($var_name);
 944                 }
 945
 946                 if (is_charset_array($e, $l)) {
 947                         $self->pidl("PY_CHECK_TYPE(&PyUnicode_Type, $py_var, $fail);");
 948                         # FIXME: Use Unix charset setting rather than utf-8
 949                         $self->pidl($var_name . " = PyString_AsString(PyUnicode_AsEncodedString($py_var, \"utf-8\", \"ignore\"));");
 950                 } else {
 951                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
 952                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
 953                         $self->pidl("{");
 954                         $self->indent;
 955                         $self->pidl("int $counter;");
 956                         if (ArrayDynamicallyAllocated($e, $l)) {
 957                                 $self->pidl("$var_name = talloc_array_ptrtype($mem_ctx, $var_name, PyList_Size($py_var));");
 958                         }
 959                         $self->pidl("for ($counter = 0; $counter < PyList_Size($py_var); $counter++) {");
 960                         $self->indent;
 961                         $self->ConvertObjectFromPythonLevel($env, $var_name, "PyList_GetItem($py_var, $counter)", $e, GetNextLevel($e, $l), $var_name."[$counter]", $fail);
 962                         $self->deindent;
 963                         $self->pidl("}");
 964                         $self->deindent;
 965                         $self->pidl("}");
 966                 }
 967         } elsif ($l->{TYPE} eq "DATA") {
 968
 969                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
 970                         $var_name = get_pointer_to($var_name);
 971                 }
 972                 $self->ConvertObjectFromPythonData($mem_ctx, $py_var, $l->{DATA_TYPE}, $var_name, $fail, $e->{ORIGINAL});
 973         } elsif ($l->{TYPE} eq "SWITCH") {
 974                 $var_name = get_pointer_to($var_name);
 975                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
 976                 $self->assign($var_name, "py_export_" . GetNextLevel($e, $l)->{DATA_TYPE} . "($mem_ctx, $switch, $py_var)");
 977         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
 978                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, GetNextLevel($e, $l), $var_name, $fail);
 979         } else {
 980                 fatal($e->{ORIGINAL}, "unknown level type $l->{TYPE}");
 981         }
 982 }
 983
 984 sub ConvertObjectFromPython($$$$$$$)
 985 {
 986         my ($self, $env, $mem_ctx, $ctype, $cvar, $target, $fail) = @_;
 987
 988         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $cvar, $ctype, $ctype->{LEVELS}[0], $target, $fail);
 989 }
 990
 991 sub ConvertScalarToPython($$$)
 992 {
 993         my ($self, $ctypename, $cvar) = @_;
 994
 995         die("expected string for $cvar, not $ctypename") if (ref($ctypename) eq "HASH");
 996
 997         $ctypename = expandAlias($ctypename);
 998
 999         if ($ctypename =~ /^(u?int64|hyper|dlong|udlong|udlongr|NTTIME_hyper|NTTIME|NTTIME_1sec)$/) {
1000                 return "PyLong_FromLongLong($cvar)";
1001         }
1002
1003         if ($ctypename =~ /^(char|u?int[0-9]*|time_t)$/) {
1004                 return "PyInt_FromLong($cvar)";
1005         }
1006
1007         if ($ctypename eq "DATA_BLOB") {
1008                 return "PyString_FromStringAndSize((char *)($cvar).data, ($cvar).length)";
1009         }
1010
1011         if ($ctypename eq "NTSTATUS") {
1012                 return "PyErr_FromNTSTATUS($cvar)";
1013         }
1014
1015         if ($ctypename eq "WERROR") {
1016                 return "PyErr_FromWERROR($cvar)";
1017         }
1018
1019         if (($ctypename eq "string" or $ctypename eq "nbt_string" or $ctypename eq "nbt_name" or $ctypename eq "wrepl_nbt_name")) {
1020                 return "PyString_FromString($cvar)";
1021         }
1022
1023         # Not yet supported
1024         if ($ctypename eq "string_array") { return "PyCObject_FromTallocPtr($cvar)"; }
1025         if ($ctypename eq "ipv4address") { return "PyString_FromString($cvar)"; }
1026         if ($ctypename eq "dnsp_name") { return "PyString_FromString($cvar)"; }
1027         if ($ctypename eq "pointer") {
1028                 return "PyCObject_FromTallocPtr($cvar)";
1029         }
1030
1031         die("Unknown scalar type $ctypename");
1032 }
1033
1034 sub ConvertObjectToPythonData($$$$$;$)
1035 {
1036         my ($self, $mem_ctx, $ctype, $cvar, $location) = @_;
1037
1038         die("undef type for $cvar") unless(defined($ctype));
1039
1040         $ctype = resolveType($ctype);
1041
1042         my $actual_ctype = $ctype;
1043         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
1044                 $actual_ctype = $actual_ctype->{DATA};
1045         }
1046
1047         if ($actual_ctype->{TYPE} eq "ENUM") {
1048                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::enum_type_fn($actual_ctype), $cvar);
1049         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
1050                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::bitmap_type_fn($actual_ctype), $cvar);
1051         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
1052                 return $self->ConvertScalarToPython($actual_ctype->{NAME}, $cvar);
1053         } elsif ($actual_ctype->{TYPE} eq "UNION") {
1054                 fatal($ctype, "union without discriminant: " . mapTypeName($ctype) . ": $cvar");
1055         } elsif ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
1056                 my $ctype_name = $self->use_type_variable($ctype);
1057                 unless (defined($ctype_name)) {
1058                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
1059                         return "NULL"; # FIXME!
1060                 }
1061                 return "py_talloc_reference_ex($ctype_name, $mem_ctx, $cvar)";
1062         }
1063
1064         fatal($location, "unknown type $actual_ctype->{TYPE} for ".mapTypeName($ctype) . ": $cvar");
1065 }
1066
1067 sub fail_on_null($$$)
1068 {
1069         my ($self, $var, $fail) = @_;
1070         $self->pidl("if ($var == NULL) {");
1071         $self->indent;
1072         $self->pidl($fail);
1073         $self->deindent;
1074         $self->pidl("}");
1075 }
1076
1077 sub ConvertObjectToPythonLevel($$$$$$)
1078 {
1079         my ($self, $mem_ctx, $env, $e, $l, $var_name, $py_var, $fail) = @_;
1080         my $nl = GetNextLevel($e, $l);
1081
1082         if ($l->{TYPE} eq "POINTER") {
1083                 if ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1084                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name, $py_var, $fail);
1085                         return;
1086                 }
1087                 if ($l->{POINTER_TYPE} ne "ref") {
1088                         $self->pidl("if ($var_name == NULL) {");
1089                         $self->indent;
1090                         $self->pidl("$py_var = Py_None;");
1091                         $self->pidl("Py_INCREF($py_var);");
1092                         $self->deindent;
1093                         $self->pidl("} else {");
1094                         $self->indent;
1095                 }
1096                 $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, get_value_of($var_name), $py_var, $fail);
1097                 if ($l->{POINTER_TYPE} ne "ref") {
1098                         $self->deindent;
1099                         $self->pidl("}");
1100                 }
1101         } elsif ($l->{TYPE} eq "ARRAY") {
1102                 my $pl = GetPrevLevel($e, $l);
1103                 if ($pl && $pl->{TYPE} eq "POINTER") {
1104                         $var_name = get_pointer_to($var_name);
1105                 }
1106
1107                 if (is_charset_array($e, $l)) {
1108                         # FIXME: Use Unix charset setting rather than utf-8
1109                         $self->pidl("$py_var = PyUnicode_Decode($var_name, strlen($var_name), \"utf-8\", \"ignore\");");
1110                 } else {
1111                         die("No SIZE_IS for array $var_name") unless (defined($l->{SIZE_IS}));
1112                         my $length = $l->{SIZE_IS};
1113                         if (defined($l->{LENGTH_IS})) {
1114                                 $length = $l->{LENGTH_IS};
1115                         }
1116
1117                         $length = ParseExpr($length, $env, $e);
1118                         $self->pidl("$py_var = PyList_New($length);");
1119                         $self->fail_on_null($py_var, $fail);
1120                         $self->pidl("{");
1121                         $self->indent;
1122                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
1123                         $self->pidl("int $counter;");
1124                         $self->pidl("for ($counter = 0; $counter < $length; $counter++) {");
1125                         $self->indent;
1126                         my $member_var = "py_$e->{NAME}_$l->{LEVEL_INDEX}";
1127                         $self->pidl("PyObject *$member_var;");
1128                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, GetNextLevel($e, $l), $var_name."[$counter]", $member_var, $fail);
1129                         $self->pidl("PyList_SetItem($py_var, $counter, $member_var);");
1130                         $self->deindent;
1131                         $self->pidl("}");
1132                         $self->deindent;
1133                         $self->pidl("}");
1134                 }
1135         } elsif ($l->{TYPE} eq "SWITCH") {
1136                 $var_name = get_pointer_to($var_name);
1137                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
1138                 $self->pidl("$py_var = py_import_" . GetNextLevel($e, $l)->{DATA_TYPE} . "($mem_ctx, $switch, $var_name);");
1139                 $self->fail_on_null($py_var, $fail);
1140
1141         } elsif ($l->{TYPE} eq "DATA") {
1142                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
1143                         $var_name = get_pointer_to($var_name);
1144                 }
1145                 my $conv = $self->ConvertObjectToPythonData($mem_ctx, $l->{DATA_TYPE}, $var_name, $e->{ORIGINAL});
1146                 $self->pidl("$py_var = $conv;");
1147         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
1148                 $self->ConvertObjectToPythonLevel($mem_ctx, $env, $e, GetNextLevel($e, $l), $var_name, $py_var, $fail);
1149         } else {
1150                 fatal($e->{ORIGINAL}, "Unknown level type $l->{TYPE} $var_name");
1151         }
1152 }
1153
1154 sub ConvertObjectToPython($$$$$$)
1155 {
1156         my ($self, $mem_ctx, $env, $ctype, $cvar, $py_var, $fail) = @_;
1157
1158         $self->ConvertObjectToPythonLevel($mem_ctx, $env, $ctype, $ctype->{LEVELS}[0], $cvar, $py_var, $fail);
1159 }
1160
1161 sub Parse($$$$$)
1162 {
1163     my($self,$basename,$ndr,$ndr_hdr,$hdr) = @_;
1164
1165         $self->{BASENAME} = $basename;
1166
1167     $self->pidl_hdr("
1168 /* Python wrapper functions auto-generated by pidl */
1169 #include <Python.h>
1170 #include \"includes.h\"
1171 #include \"lib/talloc/pytalloc.h\"
1172 #include \"librpc/rpc/pyrpc.h\"
1173 #include \"$hdr\"
1174 #include \"$ndr_hdr\"
1175
1176 ");
1177
1178         foreach my $x (@$ndr) {
1179                 ($x->{TYPE} eq "IMPORT") && $self->Import(@{$x->{PATHS}});
1180             ($x->{TYPE} eq "INTERFACE") && $self->Interface($x, $basename);
1181         }
1182
1183         $self->pidl("static PyMethodDef $basename\_methods[] = {");
1184         $self->indent;
1185         foreach (@{$self->{module_methods}}) {
1186                 my ($fn_name, $pyfn_name, $flags, $doc) = @$_;
1187                 $self->pidl("{ \"$fn_name\", (PyCFunction)$pyfn_name, $flags, $doc },");
1188         }
1189
1190         $self->pidl("{ NULL, NULL, 0, NULL }");
1191         $self->deindent;
1192         $self->pidl("};");
1193
1194         $self->pidl("");
1195
1196         $self->pidl("void init$basename(void)");
1197         $self->pidl("{");
1198         $self->indent;
1199         $self->pidl("PyObject *m;");
1200         foreach (@{$self->{module_imports}}) {
1201                 $self->pidl("PyObject *dep_$_;");
1202         }
1203         $self->pidl("");
1204
1205         foreach (@{$self->{module_imports}}) {
1206                 $self->pidl("dep_$_ = PyImport_ImportModule(\"samba.dcerpc.$_\");");
1207                 $self->pidl("if (dep_$_ == NULL)");
1208                 $self->pidl("\treturn;");
1209                 $self->pidl("");
1210         }
1211
1212         foreach (keys %{$self->{type_imports}}) {
1213                 my $basefile = $self->{type_imports}->{$_};
1214                 $self->pidl_hdr("static PyTypeObject *$_\_Type;\n");
1215                 my $pretty_name = PrettifyTypeName($_, $basefile);
1216                 $self->pidl("$_\_Type = (PyTypeObject *)PyObject_GetAttrString(dep_$basefile, \"$pretty_name\");");
1217                 $self->pidl("if ($_\_Type == NULL)");
1218                 $self->pidl("\treturn;");
1219                 $self->pidl("");
1220         }
1221
1222         foreach (@{$self->{ready_types}}) {
1223                 $self->pidl("if (PyType_Ready($_) < 0)");
1224                 $self->pidl("\treturn;");
1225         }
1226
1227         $self->pidl($_) foreach (@{$self->{readycode}});
1228
1229         foreach (@{$self->{patch_type_calls}}) {
1230                 my ($typename, $cvar) = @$_;
1231                 $self->pidl("#ifdef PY_".uc($typename)."_PATCH");
1232                 $self->pidl("PY_".uc($typename)."_PATCH($cvar);");
1233                 $self->pidl("#endif");
1234         }
1235
1236         $self->pidl("");
1237
1238         $self->pidl("m = Py_InitModule3(\"$basename\", $basename\_methods, \"$basename DCE/RPC\");");
1239         $self->pidl("if (m == NULL)");
1240         $self->pidl("\treturn;");
1241         $self->pidl("");
1242         foreach my $name (keys %{$self->{constants}}) {
1243                 my $py_obj;
1244                 my ($ctype, $cvar) = @{$self->{constants}->{$name}};
1245                 if ($cvar =~ /^[0-9]+$/ or $cvar =~ /^0x[0-9a-fA-F]+$/) {
1246                         $py_obj = "PyInt_FromLong($cvar)";
1247                 } elsif ($cvar =~ /^".*"$/) {
1248                         $py_obj = "PyString_FromString($cvar)";
1249                 } else {
1250                         $py_obj = $self->ConvertObjectToPythonData("NULL", expandAlias($ctype), $cvar, undef);
1251                 }
1252
1253                 $self->pidl("PyModule_AddObject(m, \"$name\", $py_obj);");
1254         }
1255
1256         foreach (@{$self->{module_objects}}) {
1257                 my ($object_name, $c_name) = @$_;
1258                 $self->pidl("Py_INCREF($c_name);");
1259                 $self->pidl("PyModule_AddObject(m, \"$object_name\", $c_name);");
1260         }
1261
1262         $self->pidl("#ifdef PY_MOD_".uc($basename)."_PATCH");
1263         $self->pidl("PY_MOD_".uc($basename)."_PATCH(m);");
1264         $self->pidl("#endif");
1265
1266         $self->pidl("");
1267         $self->deindent;
1268         $self->pidl("}");
1269     return ($self->{res_hdr} . $self->{res});
1270 }
1271
1272 1;