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