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

   1 ###################################################
   2 # Python function wrapper generator
   3 # Copyright jelmer@samba.org 2007-2008
   4 # released under the GNU GPL
   5
   6 package Parse::Pidl::Samba4::Python;
   7
   8 use Exporter;
   9 @ISA = qw(Exporter);
  10
  11 use strict;
  12 use Parse::Pidl qw(warning fatal);
  13 use Parse::Pidl::Typelist qw(hasType resolveType getType mapTypeName expandAlias);
  14 use Parse::Pidl::Util qw(has_property ParseExpr unmake_str);
  15 use Parse::Pidl::NDR qw(GetPrevLevel GetNextLevel ContainsDeferred is_charset_array);
  16 use Parse::Pidl::CUtil qw(get_value_of get_pointer_to);
  17 use Parse::Pidl::Samba4 qw(ArrayDynamicallyAllocated);
  18 use Parse::Pidl::Samba4::Header qw(GenerateFunctionInEnv GenerateFunctionOutEnv EnvSubstituteValue GenerateStructEnv);
  19
  20 use vars qw($VERSION);
  21 $VERSION = '0.01';
  22
  23 sub new($) {
  24         my ($class) = @_;
  25         my $self = { res => "", res_hdr => "", tabs => "", constants => {},
  26                      module_methods => [], module_objects => [], ready_types => [],
  27                                  module_imports => [], type_imports => {},
  28                                  patch_type_calls => [], readycode => [] };
  29         bless($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 Import
  63 {
  64         my $self = shift;
  65         my @imports = @_;
  66         foreach (@imports) {
  67                 $_ = unmake_str($_);
  68                 s/\.idl$//;
  69                 $self->pidl_hdr("#include \"librpc/gen_ndr/$_\.h\"\n");
  70                 $self->register_module_import($_);
  71         }
  72 }
  73
  74 sub Const($$)
  75 {
  76     my ($self, $const) = @_;
  77         $self->register_constant($const->{NAME}, $const->{DTYPE}, $const->{VALUE});
  78 }
  79
  80 sub register_constant($$$$)
  81 {
  82         my ($self, $name, $type, $value) = @_;
  83
  84         $self->{constants}->{$name} = [$type, $value];
  85 }
  86
  87 sub EnumAndBitmapConsts($$$)
  88 {
  89         my ($self, $name, $d) = @_;
  90
  91         return unless (defined($d->{ELEMENTS}));
  92
  93         foreach my $e (@{$d->{ELEMENTS}}) {
  94                 $e =~ /^([A-Za-z0-9_]+)/;
  95                 my $cname = $1;
  96
  97                 $self->register_constant($cname, $d, $cname);
  98         }
  99 }
 100
 101 sub FromUnionToPythonFunction($$$$)
 102 {
 103         my ($self, $mem_ctx, $type, $switch, $name) = @_;
 104
 105         $self->pidl("PyObject *ret;");
 106         $self->pidl("");
 107
 108         $self->pidl("switch ($switch) {");
 109         $self->indent;
 110
 111         foreach my $e (@{$type->{ELEMENTS}}) {
 112                 $self->pidl("$e->{CASE}:");
 113
 114                 $self->indent;
 115
 116                 if ($e->{NAME}) {
 117                         $self->ConvertObjectToPython($mem_ctx, {}, $e, "$name->$e->{NAME}", "ret", "return NULL;");
 118                 } else {
 119                         $self->pidl("ret = Py_None;");
 120                 }
 121
 122                 $self->pidl("return ret;");
 123                 $self->pidl("");
 124
 125                 $self->deindent;
 126         }
 127
 128         $self->deindent;
 129         $self->pidl("}");
 130
 131         $self->pidl("PyErr_SetString(PyExc_TypeError, \"unknown union level\");");
 132         $self->pidl("return NULL;");
 133 }
 134
 135 sub FromPythonToUnionFunction($$$$$)
 136 {
 137         my ($self, $type, $typename, $switch, $mem_ctx, $name) = @_;
 138
 139         my $has_default = 0;
 140
 141         $self->pidl("$typename *ret = talloc_zero($mem_ctx, $typename);");
 142
 143         $self->pidl("switch ($switch) {");
 144         $self->indent;
 145
 146         foreach my $e (@{$type->{ELEMENTS}}) {
 147                 $self->pidl("$e->{CASE}:");
 148                 if ($e->{CASE} eq "default") { $has_default = 1; }
 149                 $self->indent;
 150                 if ($e->{NAME}) {
 151                         $self->ConvertObjectFromPython({}, $mem_ctx, $e, $name, "ret->$e->{NAME}", "talloc_free(ret); return NULL;");
 152                 }
 153                 $self->pidl("break;");
 154                 $self->deindent;
 155                 $self->pidl("");
 156         }
 157
 158         if (!$has_default) {
 159                 $self->pidl("default:");
 160                 $self->indent;
 161                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"invalid union level value\");");
 162                 $self->pidl("talloc_free(ret);");
 163                 $self->pidl("ret = NULL;");
 164                 $self->deindent;
 165         }
 166
 167         $self->deindent;
 168         $self->pidl("}");
 169         $self->pidl("");
 170         $self->pidl("return ret;");
 171 }
 172
 173 sub PythonStruct($$$$$$)
 174 {
 175         my ($self, $modulename, $prettyname, $name, $cname, $d) = @_;
 176
 177         my $env = GenerateStructEnv($d, "object");
 178
 179         $self->pidl("");
 180
 181         my $getsetters = "NULL";
 182
 183         if ($#{$d->{ELEMENTS}} > -1) {
 184                 foreach my $e (@{$d->{ELEMENTS}}) {
 185                         my $varname = "object->$e->{NAME}";
 186                         $self->pidl("static PyObject *py_$name\_get_$e->{NAME}(PyObject *obj, void *closure)");
 187                         $self->pidl("{");
 188                         $self->indent;
 189                         $self->pidl("$cname *object = py_talloc_get_ptr(obj);");
 190                         $self->pidl("PyObject *py_$e->{NAME};");
 191                         $self->ConvertObjectToPython("py_talloc_get_mem_ctx(obj)", $env, $e, $varname, "py_$e->{NAME}", "return NULL;");
 192                         $self->pidl("return py_$e->{NAME};");
 193                         $self->deindent;
 194                         $self->pidl("}");
 195                         $self->pidl("");
 196
 197                         $self->pidl("static int py_$name\_set_$e->{NAME}(PyObject *py_obj, PyObject *value, void *closure)");
 198                         $self->pidl("{");
 199                         $self->indent;
 200                         $self->pidl("$cname *object = py_talloc_get_ptr(py_obj);");
 201                         my $mem_ctx = "py_talloc_get_mem_ctx(py_obj)";
 202                         my $l = $e->{LEVELS}[0];
 203                         my $nl = GetNextLevel($e, $l);
 204                         if ($l->{TYPE} eq "POINTER" and
 205                                 not ($nl->{TYPE} eq "ARRAY" and ($nl->{IS_FIXED} or is_charset_array($e, $nl))) and
 206                                 not ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE}))) {
 207                                 $self->pidl("talloc_free($varname);");
 208                         }
 209                         $self->ConvertObjectFromPython($env, $mem_ctx, $e, "value", $varname, "return -1;");
 210                         $self->pidl("return 0;");
 211                         $self->deindent;
 212                         $self->pidl("}");
 213                         $self->pidl("");
 214                 }
 215
 216                 $getsetters = "py_$name\_getsetters";
 217                 $self->pidl("static PyGetSetDef ".$getsetters."[] = {");
 218                 $self->indent;
 219                 foreach my $e (@{$d->{ELEMENTS}}) {
 220                         $self->pidl("{ discard_const_p(char, \"$e->{NAME}\"), py_$name\_get_$e->{NAME}, py_$name\_set_$e->{NAME} },");
 221                 }
 222                 $self->pidl("{ NULL }");
 223                 $self->deindent;
 224                 $self->pidl("};");
 225                 $self->pidl("");
 226         }
 227
 228         $self->pidl("static PyObject *py_$name\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 229         $self->pidl("{");
 230         $self->indent;
 231         $self->pidl("return py_talloc_new($cname, type);");
 232         $self->deindent;
 233         $self->pidl("}");
 234         $self->pidl("");
 235
 236         my $py_methods = "NULL";
 237
 238         # If the struct is not public there ndr_pull/ndr_push functions will
 239         # be static so not callable from here
 240         if (has_property($d, "public")) {
 241                 $self->pidl("static PyObject *py_$name\_ndr_pack(PyObject *py_obj)");
 242                 $self->pidl("{");
 243                 $self->indent;
 244                 $self->pidl("$cname *object = py_talloc_get_ptr(py_obj);");
 245                 $self->pidl("DATA_BLOB blob;");
 246                 $self->pidl("enum ndr_err_code err;");
 247                 $self->pidl("err = ndr_push_struct_blob(&blob, py_talloc_get_mem_ctx(py_obj), NULL, object, (ndr_push_flags_fn_t)ndr_push_$name);");
 248                 $self->pidl("if (err != NDR_ERR_SUCCESS) {");
 249                 $self->indent;
 250                 $self->pidl("PyErr_SetNdrError(err);");
 251                 $self->pidl("return NULL;");
 252                 $self->deindent;
 253                 $self->pidl("}");
 254                 $self->pidl("");
 255                 $self->pidl("return PyString_FromStringAndSize((char *)blob.data, blob.length);");
 256                 $self->deindent;
 257                 $self->pidl("}");
 258                 $self->pidl("");
 259
 260                 $self->pidl("static PyObject *py_$name\_ndr_unpack(PyObject *py_obj, PyObject *args)");
 261                 $self->pidl("{");
 262                 $self->indent;
 263                 $self->pidl("$cname *object = py_talloc_get_ptr(py_obj);");
 264                 $self->pidl("DATA_BLOB blob;");
 265                 $self->pidl("enum ndr_err_code err;");
 266                 $self->pidl("if (!PyArg_ParseTuple(args, \"s#:__ndr_unpack__\", &blob.data, &blob.length))");
 267                 $self->pidl("\treturn NULL;");
 268                 $self->pidl("");
 269                 $self->pidl("err = ndr_pull_struct_blob_all(&blob, py_talloc_get_mem_ctx(py_obj), NULL, object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 270                 $self->pidl("if (err != NDR_ERR_SUCCESS) {");
 271                 $self->indent;
 272                 $self->pidl("PyErr_SetNdrError(err);");
 273                 $self->pidl("return NULL;");
 274                 $self->deindent;
 275                 $self->pidl("}");
 276                 $self->pidl("");
 277                 $self->pidl("return Py_None;");
 278                 $self->deindent;
 279                 $self->pidl("}");
 280                 $self->pidl("");
 281                 $py_methods = "py_$name\_methods";
 282                 $self->pidl("static PyMethodDef $py_methods\[] = {");
 283                 $self->indent;
 284                 $self->pidl("{ \"__ndr_pack__\", (PyCFunction)py_$name\_ndr_pack, METH_NOARGS, \"S.pack() -> blob\\nNDR pack\" },");
 285                 $self->pidl("{ \"__ndr_unpack__\", (PyCFunction)py_$name\_ndr_unpack, METH_VARARGS, \"S.unpack(blob) -> None\\nNDR unpack\" },");
 286                 $self->pidl("{ NULL, NULL, 0, NULL }");
 287                 $self->deindent;
 288                 $self->pidl("};");
 289                 $self->pidl("");
 290         }
 291
 292         $self->pidl_hdr("staticforward PyTypeObject $name\_Type;\n");
 293         $self->pidl("");
 294         my $docstring = $self->DocString($d, $name);
 295         my $typeobject = "$name\_Type";
 296         $self->pidl("static PyTypeObject $typeobject = {");
 297         $self->indent;
 298         $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 299         $self->pidl(".tp_name = \"$modulename.$prettyname\",");
 300         $self->pidl(".tp_basicsize = sizeof(py_talloc_Object),");
 301         $self->pidl(".tp_dealloc = py_talloc_dealloc,");
 302         $self->pidl(".tp_getset = $getsetters,");
 303         $self->pidl(".tp_repr = py_talloc_default_repr,");
 304         if ($docstring) {
 305                 $self->pidl(".tp_doc = $docstring,");
 306         }
 307         $self->pidl(".tp_methods = $py_methods,");
 308         $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 309         $self->pidl(".tp_new = py_$name\_new,");
 310         $self->deindent;
 311         $self->pidl("};");
 312
 313         $self->pidl("");
 314
 315         return "&$typeobject";
 316 }
 317
 318 sub get_metadata_var($)
 319 {
 320         my ($e) = @_;
 321         sub get_var($) { my $x = shift; $x =~ s/\*//g; return $x; }
 322
 323          if (has_property($e, "length_is")) {
 324                 return get_var($e->{PROPERTIES}->{length_is});
 325          } elsif (has_property($e, "size_is")) {
 326                 return get_var($e->{PROPERTIES}->{size_is});
 327          }
 328
 329          return undef;
 330 }
 331
 332 sub find_metadata_args($)
 333 {
 334         my ($fn) = @_;
 335         my $metadata_args = { in => {}, out => {} };
 336
 337         # Determine arguments that are metadata for other arguments (size_is/length_is)
 338         foreach my $e (@{$fn->{ELEMENTS}}) {
 339                 foreach my $dir (@{$e->{DIRECTION}}) {
 340                          my $main = get_metadata_var($e);
 341                          if ($main) {
 342                                  $metadata_args->{$dir}->{$main} = $e->{NAME};
 343                          }
 344                  }
 345         }
 346
 347         return $metadata_args;
 348 }
 349
 350 sub PythonFunctionUnpackOut($$$)
 351 {
 352         my ($self, $fn, $fnname) = @_;
 353
 354         my $outfnname = "unpack_$fnname\_args_out";
 355         my $signature = "";
 356
 357         my $metadata_args = find_metadata_args($fn);
 358
 359         my $env = GenerateFunctionOutEnv($fn, "r->");
 360         my $result_size = 0;
 361
 362         $self->pidl("static PyObject *$outfnname(struct $fn->{NAME} *r)");
 363         $self->pidl("{");
 364         $self->indent;
 365         $self->pidl("PyObject *result = Py_None;");
 366         foreach my $e (@{$fn->{ELEMENTS}}) {
 367                 next unless (grep(/out/,@{$e->{DIRECTION}}));
 368                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 369                          ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 370                 $self->pidl("PyObject *py_$e->{NAME};");
 371                 $result_size++;
 372         }
 373
 374         if ($fn->{RETURN_TYPE}) {
 375                 $result_size++ unless ($fn->{RETURN_TYPE} eq "WERROR" or $fn->{RETURN_TYPE} eq "NTSTATUS");
 376         }
 377
 378         my $i = 0;
 379
 380         if ($result_size > 1) {
 381                 $self->pidl("result = PyTuple_New($result_size);");
 382                 $signature .= "(";
 383         } elsif ($result_size == 0) {
 384                 $signature .= "None";
 385         }
 386
 387         foreach my $e (@{$fn->{ELEMENTS}}) {
 388                 next if ($metadata_args->{out}->{$e->{NAME}});
 389                 my $py_name = "py_$e->{NAME}";
 390                 if (grep(/out/,@{$e->{DIRECTION}})) {
 391                         $self->ConvertObjectToPython("r", $env, $e, "r->out.$e->{NAME}", $py_name, "return NULL;");
 392                         if ($result_size > 1) {
 393                                 $self->pidl("PyTuple_SetItem(result, $i, $py_name);");
 394                                 $i++;
 395                                 $signature .= "$e->{NAME}, ";
 396                         } else {
 397                                 $self->pidl("result = $py_name;");
 398                                 $signature .= $e->{NAME};
 399                         }
 400                 }
 401         }
 402
 403         if (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "NTSTATUS") {
 404                 $self->handle_ntstatus("r->out.result", "NULL", undef);
 405         } elsif (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "WERROR") {
 406                 $self->handle_werror("r->out.result", "NULL", undef);
 407         } elsif (defined($fn->{RETURN_TYPE})) {
 408                 my $conv = $self->ConvertObjectToPythonData("r", $fn->{RETURN_TYPE}, "r->out.result");
 409                 if ($result_size > 1) {
 410                         $self->pidl("PyTuple_SetItem(result, $i, $conv);");
 411                 } else {
 412                         $self->pidl("result = $conv;");
 413                 }
 414                 $signature .= "result";
 415         }
 416
 417         if (substr($signature, -2) eq ", ") {
 418                 $signature = substr($signature, 0, -2);
 419         }
 420         if ($result_size > 1) {
 421                 $signature .= ")";
 422         }
 423
 424         $self->pidl("return result;");
 425         $self->deindent;
 426         $self->pidl("}");
 427         $self->pidl("");
 428
 429         return ($outfnname, $signature);
 430 }
 431
 432 sub PythonFunctionPackIn($$$)
 433 {
 434         my ($self, $fn, $fnname) = @_;
 435         my $metadata_args = find_metadata_args($fn);
 436
 437         my $infnname = "pack_$fnname\_args_in";
 438
 439         $self->pidl("static bool $infnname(PyObject *args, PyObject *kwargs, struct $fn->{NAME} *r)");
 440         $self->pidl("{");
 441         $self->indent;
 442         my $args_format = "";
 443         my $args_string = "";
 444         my $args_names = "";
 445         my $signature = "";
 446
 447         foreach my $e (@{$fn->{ELEMENTS}}) {
 448                 next unless (grep(/in/,@{$e->{DIRECTION}}));
 449                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 450                                  ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 451                 $self->pidl("PyObject *py_$e->{NAME};");
 452                 $args_format .= "O";
 453                 $args_string .= ", &py_$e->{NAME}";
 454                 $args_names .= "\"$e->{NAME}\", ";
 455                 $signature .= "$e->{NAME}, ";
 456         }
 457         if (substr($signature, -2) eq ", ") {
 458                 $signature = substr($signature, 0, -2);
 459         }
 460         $self->pidl("const char *kwnames[] = {");
 461         $self->indent;
 462         $self->pidl($args_names . "NULL");
 463         $self->deindent;
 464         $self->pidl("};");
 465
 466         $self->pidl("");
 467         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"$args_format:$fn->{NAME}\", discard_const_p(char *, kwnames)$args_string)) {");
 468         $self->indent;
 469         $self->pidl("return false;");
 470         $self->deindent;
 471         $self->pidl("}");
 472         $self->pidl("");
 473
 474         my $env = GenerateFunctionInEnv($fn, "r->");
 475
 476         my $fail = "return false;";
 477         foreach my $e (@{$fn->{ELEMENTS}}) {
 478                 next unless (grep(/in/,@{$e->{DIRECTION}}));
 479                 if ($metadata_args->{in}->{$e->{NAME}}) {
 480                         my $py_var = "py_".$metadata_args->{in}->{$e->{NAME}};
 481                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
 482                         my $val = "PyList_Size($py_var)";
 483                         if ($e->{LEVELS}[0]->{TYPE} eq "POINTER") {
 484                                 $self->pidl("r->in.$e->{NAME} = talloc_ptrtype(r, r->in.$e->{NAME});");
 485                                 $self->pidl("*r->in.$e->{NAME} = $val;");
 486                         } else {
 487                                 $self->pidl("r->in.$e->{NAME} = $val;");
 488                         }
 489                 } else {
 490                         $self->ConvertObjectFromPython($env, "r", $e, "py_$e->{NAME}", "r->in.$e->{NAME}", $fail);
 491                 }
 492         }
 493         $self->pidl("return true;");
 494         $self->deindent;
 495         $self->pidl("}");
 496         $self->pidl("");
 497         return ($infnname, $signature);
 498 }
 499
 500 sub PythonFunction($$$)
 501 {
 502         my ($self, $fn, $iface, $prettyname) = @_;
 503
 504         my $fnname = "py_$fn->{NAME}";
 505         my $docstring = $self->DocString($fn, $fn->{NAME});
 506
 507         my ($insignature, $outsignature);
 508         my ($infn, $outfn);
 509
 510         if (has_property($fn, "todo")) {
 511                 unless ($docstring) { $docstring = "NULL"; }
 512                 $infn = "NULL";
 513                 $outfn = "NULL";
 514         } else {
 515                 ($infn, $insignature) = $self->PythonFunctionPackIn($fn, $fnname);
 516                 ($outfn, $outsignature) = $self->PythonFunctionUnpackOut($fn, $fnname);
 517                 my $signature = "S.$prettyname($insignature) -> $outsignature";
 518                 if ($docstring) {
 519                         $docstring = "\"$signature\\n\\n\"$docstring";
 520                 } else {
 521                         $docstring = "\"$signature\"";
 522                 }
 523         }
 524
 525         return ($infn, $outfn, $docstring);
 526 }
 527
 528 sub handle_werror($$$$)
 529 {
 530         my ($self, $var, $retval, $mem_ctx) = @_;
 531
 532         $self->pidl("if (!W_ERROR_IS_OK($var)) {");
 533         $self->indent;
 534         $self->pidl("PyErr_SetWERROR($var);");
 535         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
 536         $self->pidl("return $retval;");
 537         $self->deindent;
 538         $self->pidl("}");
 539         $self->pidl("");
 540 }
 541
 542 sub handle_ntstatus($$$$)
 543 {
 544         my ($self, $var, $retval, $mem_ctx) = @_;
 545
 546         $self->pidl("if (NT_STATUS_IS_ERR($var)) {");
 547         $self->indent;
 548         $self->pidl("PyErr_SetNTSTATUS($var);");
 549         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
 550         $self->pidl("return $retval;");
 551         $self->deindent;
 552         $self->pidl("}");
 553         $self->pidl("");
 554 }
 555
 556 sub PythonType($$$$)
 557 {
 558         my ($self, $modulename, $d, $interface, $basename) = @_;
 559
 560         my $actual_ctype = $d;
 561         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
 562                 $actual_ctype = $actual_ctype->{DATA};
 563         }
 564
 565         if ($actual_ctype->{TYPE} eq "STRUCT") {
 566                 my $typeobject;
 567                 my $fn_name = $d->{NAME};
 568
 569                 $fn_name =~ s/^$interface->{NAME}_//;
 570                 $fn_name =~ s/^$basename\_//;
 571
 572
 573                 if ($d->{TYPE} eq "STRUCT") {
 574                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d);
 575                 } else {
 576                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d->{DATA});
 577                 }
 578
 579                 $self->register_module_typeobject($fn_name, $typeobject);
 580         }
 581
 582         if ($d->{TYPE} eq "ENUM" or $d->{TYPE} eq "BITMAP") {
 583                 $self->EnumAndBitmapConsts($d->{NAME}, $d);
 584         }
 585
 586         if ($d->{TYPE} eq "TYPEDEF" and ($d->{DATA}->{TYPE} eq "ENUM" or $d->{DATA}->{TYPE} eq "BITMAP")) {
 587                 $self->EnumAndBitmapConsts($d->{NAME}, $d->{DATA});
 588         }
 589
 590         if ($actual_ctype->{TYPE} eq "UNION" and defined($actual_ctype->{ELEMENTS})) {
 591                 $self->pidl("PyObject *py_import_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, " .mapTypeName($d) . " *in)");
 592                 $self->pidl("{");
 593                 $self->indent;
 594                 $self->FromUnionToPythonFunction("mem_ctx", $actual_ctype, "level", "in") if ($actual_ctype->{TYPE} eq "UNION");
 595                 $self->deindent;
 596                 $self->pidl("}");
 597                 $self->pidl("");
 598
 599                 $self->pidl(mapTypeName($d) . " *py_export_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, PyObject *in)");
 600                 $self->pidl("{");
 601                 $self->indent;
 602                 $self->FromPythonToUnionFunction($actual_ctype, mapTypeName($d), "level", "mem_ctx", "in") if ($actual_ctype->{TYPE} eq "UNION");
 603                 $self->deindent;
 604                 $self->pidl("}");
 605                 $self->pidl("");
 606         }
 607 }
 608
 609 sub DocString($$$)
 610 {
 611         my ($self, $d, $name) = @_;
 612         if (has_property($d, "helpstring")) {
 613                 my $docstring = uc("py_doc_$name");
 614                 $self->pidl("#define $docstring ".has_property($d, "helpstring"));
 615                 return $docstring;
 616         }
 617
 618         return undef;
 619 }
 620
 621 sub Interface($$$)
 622 {
 623         my($self,$interface,$basename) = @_;
 624
 625         if (has_property($interface, "pyhelper")) {
 626                 $self->pidl_hdr("#include \"".unmake_str($interface->{PROPERTIES}->{pyhelper})."\"\n");
 627         }
 628
 629         $self->Const($_) foreach (@{$interface->{CONSTS}});
 630
 631         foreach my $d (@{$interface->{TYPES}}) {
 632                 next if has_property($d, "nopython");
 633
 634                 $self->PythonType($basename, $d, $interface, $basename);
 635         }
 636
 637         if (defined $interface->{PROPERTIES}->{uuid}) {
 638                 $self->pidl_hdr("staticforward PyTypeObject $interface->{NAME}_InterfaceType;\n");
 639                 $self->pidl("");
 640
 641                 my @fns = ();
 642
 643                 foreach my $d (@{$interface->{FUNCTIONS}}) {
 644                         next if not defined($d->{OPNUM});
 645                         next if has_property($d, "nopython");
 646
 647                         my $prettyname = $d->{NAME};
 648
 649                         $prettyname =~ s/^$interface->{NAME}_//;
 650                         $prettyname =~ s/^$basename\_//;
 651
 652                         my ($infn, $outfn, $fndocstring) = $self->PythonFunction($d, $interface->{NAME}, $prettyname);
 653
 654                         push (@fns, [$infn, $outfn, "dcerpc_$d->{NAME}", $prettyname, $fndocstring, $d->{OPNUM}]);
 655                 }
 656
 657                 $self->pidl("const struct PyNdrRpcMethodDef py_ndr_$interface->{NAME}\_methods[] = {");
 658                 $self->indent;
 659                 foreach my $d (@fns) {
 660                         my ($infn, $outfn, $callfn, $prettyname, $docstring, $opnum) = @$d;
 661                         $self->pidl("{ \"$prettyname\", $docstring, (dcerpc_call_fn)$callfn, (py_data_pack_fn)$infn, (py_data_unpack_fn)$outfn, $opnum, &ndr_table_$interface->{NAME} },");
 662                 }
 663                 $self->pidl("{ NULL }");
 664                 $self->deindent;
 665                 $self->pidl("};");
 666                 $self->pidl("");
 667
 668                 $self->pidl("static PyObject *interface_$interface->{NAME}_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 669                 $self->pidl("{");
 670                 $self->indent;
 671                 $self->pidl("dcerpc_InterfaceObject *ret;");
 672                 $self->pidl("const char *binding_string;");
 673                 $self->pidl("struct cli_credentials *credentials;");
 674                 $self->pidl("struct loadparm_context *lp_ctx = NULL;");
 675                 $self->pidl("PyObject *py_lp_ctx = Py_None, *py_credentials = Py_None, *py_basis = Py_None;");
 676                 $self->pidl("TALLOC_CTX *mem_ctx = NULL;");
 677                 $self->pidl("struct event_context *event_ctx;");
 678                 $self->pidl("NTSTATUS status;");
 679                 $self->pidl("");
 680                 $self->pidl("const char *kwnames[] = {");
 681                 $self->indent;
 682                 $self->pidl("\"binding\", \"lp_ctx\", \"credentials\", \"basis_connection\", NULL");
 683                 $self->deindent;
 684                 $self->pidl("};");
 685                 $self->pidl("extern struct loadparm_context *lp_from_py_object(PyObject *py_obj);");
 686                 $self->pidl("extern struct cli_credentials *cli_credentials_from_py_object(PyObject *py_obj);");
 687                 $self->pidl("");
 688                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"s|OOO:$interface->{NAME}\", discard_const_p(char *, kwnames), &binding_string, &py_lp_ctx, &py_credentials, &py_basis)) {");
 689                 $self->indent;
 690                 $self->pidl("return NULL;");
 691                 $self->deindent;
 692                 $self->pidl("}");
 693                 $self->pidl("");
 694                 $self->pidl("lp_ctx = lp_from_py_object(py_lp_ctx);");
 695                 $self->pidl("if (lp_ctx == NULL) {");
 696                 $self->indent;
 697                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"Expected loadparm context\");");
 698                 $self->pidl("return NULL;");
 699                 $self->deindent;
 700                 $self->pidl("}");
 701                 $self->pidl("");
 702
 703                 $self->pidl("status = dcerpc_init(lp_ctx);");
 704                 $self->pidl("if (!NT_STATUS_IS_OK(status)) {");
 705                 $self->indent;
 706                 $self->pidl("PyErr_SetNTSTATUS(status);");
 707                 $self->pidl("return NULL;");
 708                 $self->deindent;
 709                 $self->pidl("}");
 710
 711                 $self->pidl("credentials = cli_credentials_from_py_object(py_credentials);");
 712                 $self->pidl("if (credentials == NULL) {");
 713                 $self->indent;
 714                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"Expected credentials\");");
 715                 $self->pidl("return NULL;");
 716                 $self->deindent;
 717                 $self->pidl("}");
 718
 719                 $self->pidl("ret = PyObject_New(dcerpc_InterfaceObject, type);");
 720                 $self->pidl("");
 721                 $self->pidl("event_ctx = event_context_init(mem_ctx);");
 722                 $self->pidl("");
 723
 724                 $self->pidl("if (py_basis != Py_None) {");
 725                 $self->indent;
 726                 $self->pidl("struct dcerpc_pipe *base_pipe;");
 727                 $self->pidl("");
 728                 $self->pidl("if (!PyObject_TypeCheck(py_basis, &dcerpc_InterfaceType)) {");
 729                 $self->indent;
 730                 $self->pidl("PyErr_SetString(PyExc_ValueError, \"basis_connection must be a DCE/RPC connection\");");
 731                 $self->pidl("talloc_free(mem_ctx);");
 732                 $self->pidl("return NULL;");
 733                 $self->deindent;
 734                 $self->pidl("}");
 735                 $self->pidl("");
 736                 $self->pidl("base_pipe = ((dcerpc_InterfaceObject *)py_basis)->pipe;");
 737                 $self->pidl("");
 738                 $self->pidl("status = dcerpc_secondary_context(base_pipe, &ret->pipe, &ndr_table_$interface->{NAME});");
 739                 $self->deindent;
 740                 $self->pidl("} else {");
 741                 $self->indent;
 742                 $self->pidl("status = dcerpc_pipe_connect(NULL, &ret->pipe, binding_string, ");
 743                 $self->pidl("             &ndr_table_$interface->{NAME}, credentials, event_ctx, lp_ctx);");
 744                 $self->deindent;
 745                 $self->pidl("}");
 746                 $self->handle_ntstatus("status", "NULL", "mem_ctx");
 747
 748                 $self->pidl("ret->pipe->conn->flags |= DCERPC_NDR_REF_ALLOC;");
 749
 750                 $self->pidl("return (PyObject *)ret;");
 751                 $self->deindent;
 752                 $self->pidl("}");
 753
 754                 $self->pidl("");
 755
 756                 my $signature =
 757 "\"$interface->{NAME}(binding, lp_ctx=None, credentials=None) -> connection\\n\"
 758 \"\\n\"
 759 \"binding should be a DCE/RPC binding string (for example: ncacn_ip_tcp:127.0.0.1)\\n\"
 760 \"lp_ctx should be a path to a smb.conf file or a param.LoadParm object\\n\"
 761 \"credentials should be a credentials.Credentials object.\\n\\n\"";
 762
 763                 my $docstring = $self->DocString($interface, $interface->{NAME});
 764
 765                 if ($docstring) {
 766                         $docstring = "$signature$docstring";
 767                 } else {
 768                         $docstring = $signature;
 769                 }
 770
 771                 $self->pidl("static PyTypeObject $interface->{NAME}_InterfaceType = {");
 772                 $self->indent;
 773                 $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 774                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}\",");
 775                 $self->pidl(".tp_basicsize = sizeof(dcerpc_InterfaceObject),");
 776                 $self->pidl(".tp_base = &dcerpc_InterfaceType,");
 777                 $self->pidl(".tp_doc = $docstring,");
 778                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 779                 $self->pidl(".tp_new = interface_$interface->{NAME}_new,");
 780                 $self->deindent;
 781                 $self->pidl("};");
 782
 783                 $self->pidl("");
 784
 785                 $self->register_module_typeobject($interface->{NAME}, "&$interface->{NAME}_InterfaceType");
 786                 $self->register_module_readycode(["if (!PyInterface_AddNdrRpcMethods(&$interface->{NAME}_InterfaceType, py_ndr_$interface->{NAME}\_methods))", "\treturn;", ""]);
 787         }
 788
 789         $self->pidl_hdr("\n");
 790 }
 791
 792 sub register_module_method($$$$$)
 793 {
 794         my ($self, $fn_name, $pyfn_name, $flags, $doc) = @_;
 795
 796         push (@{$self->{module_methods}}, [$fn_name, $pyfn_name, $flags, $doc])
 797 }
 798
 799 sub register_module_typeobject($$$)
 800 {
 801         my ($self, $name, $py_name) = @_;
 802
 803         $self->register_module_object($name, "(PyObject *)$py_name");
 804
 805         $self->check_ready_type($py_name);
 806
 807         $self->register_patch_type_call($name, $py_name);
 808 }
 809
 810 sub check_ready_type($$)
 811 {
 812         my ($self, $py_name) = @_;
 813         push (@{$self->{ready_types}}, $py_name) unless (grep(/^$py_name$/,@{$self->{ready_types}}));
 814 }
 815
 816 sub register_module_import($$)
 817 {
 818         my ($self, $basename) = @_;
 819
 820         push (@{$self->{module_imports}}, $basename);
 821 }
 822
 823 sub use_type_variable($$)
 824 {
 825         my ($self, $orig_ctype) = @_;
 826         my $ctype = resolveType($orig_ctype);
 827         unless (defined($ctype->{BASEFILE})) {
 828                 fatal($orig_ctype, "Unable to determine origin of type " . mapTypeName($orig_ctype));
 829         }
 830         # If this is an external type, make sure we do the right imports.
 831         if (($ctype->{BASEFILE} ne $self->{BASENAME})) {
 832                 unless (defined($self->{type_imports}->{$ctype->{NAME}})) {
 833                         $self->{type_imports}->{$ctype->{NAME}} = $ctype->{BASEFILE};
 834                 }
 835                 return "$ctype->{NAME}_Type"
 836         }
 837         return "&$ctype->{NAME}_Type";
 838 }
 839
 840 sub register_patch_type_call($$$)
 841 {
 842         my ($self, $typename, $cvar) = @_;
 843
 844         push(@{$self->{patch_type_calls}}, [$typename, $cvar]);
 845
 846 }
 847
 848 sub register_module_readycode($$)
 849 {
 850         my ($self, $code) = @_;
 851
 852         push (@{$self->{readycode}}, @$code);
 853 }
 854
 855 sub register_module_object($$$)
 856 {
 857         my ($self, $name, $py_name) = @_;
 858
 859         push (@{$self->{module_objects}}, [$name, $py_name])
 860 }
 861
 862 sub assign($$$)
 863 {
 864         my ($self, $dest, $src) = @_;
 865         if ($dest =~ /^\&/) {
 866                 $self->pidl("memcpy($dest, $src, sizeof(" . get_value_of($dest) . "));");
 867         } else {
 868                 $self->pidl("$dest = $src;");
 869         }
 870 }
 871
 872 sub ConvertObjectFromPythonData($$$$$$)
 873 {
 874         my ($self, $mem_ctx, $cvar, $ctype, $target, $fail) = @_;
 875
 876         die("undef type for $cvar") unless(defined($ctype));
 877
 878         $ctype = resolveType($ctype);
 879
 880         my $actual_ctype = $ctype;
 881         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
 882                 $actual_ctype = $actual_ctype->{DATA};
 883         }
 884
 885         if ($actual_ctype->{TYPE} eq "ENUM" or $actual_ctype->{TYPE} eq "BITMAP" or
 886                 $actual_ctype->{TYPE} eq "SCALAR" and (
 887                 expandAlias($actual_ctype->{NAME}) =~ /^(u?int[0-9]*|hyper|NTTIME|time_t|NTTIME_hyper|NTTIME_1sec|dlong|udlong|udlongr)$/)) {
 888                 $self->pidl("PY_CHECK_TYPE(&PyInt_Type, $cvar, $fail);");
 889                 $self->pidl("$target = PyInt_AsLong($cvar);");
 890                 return;
 891         }
 892
 893         if ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
 894                 my $ctype_name = $self->use_type_variable($ctype);
 895                 $self->pidl("PY_CHECK_TYPE($ctype_name, $cvar, $fail);");
 896                 $self->assign($target, "py_talloc_get_ptr($cvar)");
 897                 return;
 898         }
 899
 900         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "DATA_BLOB") {
 901                 $self->pidl("$target = data_blob_talloc($mem_ctx, PyString_AsString($cvar), PyString_Size($cvar));");
 902                 return;
 903         }
 904
 905         if ($actual_ctype->{TYPE} eq "SCALAR" and
 906                 ($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")) {
 907                 $self->pidl("$target = talloc_strdup($mem_ctx, PyString_AsString($cvar));");
 908                 return;
 909         }
 910
 911         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "ipv4address") {
 912                 $self->pidl("$target = PyString_AsString($cvar);");
 913                 return;
 914                 }
 915
 916
 917         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "NTSTATUS") {
 918                 $self->pidl("$target = NT_STATUS(PyInt_AsLong($cvar));");
 919                 return;
 920         }
 921
 922         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "WERROR") {
 923                 $self->pidl("$target = W_ERROR(PyInt_AsLong($cvar));");
 924                 return;
 925         }
 926
 927         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "string_array") {
 928                 $self->pidl("$target = PyCObject_AsVoidPtr($cvar);");
 929                 return;
 930         }
 931
 932         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "pointer") {
 933                 $self->assign($target, "PyCObject_AsVoidPtr($cvar)");
 934                 return;
 935         }
 936
 937         fatal($ctype, "unknown type $actual_ctype->{TYPE} for ".mapTypeName($ctype) . ": $cvar");
 938
 939 }
 940
 941 sub ConvertObjectFromPythonLevel($$$$$$$$)
 942 {
 943         my ($self, $env, $mem_ctx, $py_var, $e, $l, $var_name, $fail) = @_;
 944         my $nl = GetNextLevel($e, $l);
 945
 946         if ($l->{TYPE} eq "POINTER") {
 947                 if ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
 948                         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail);
 949                         return;
 950                 }
 951                 if ($l->{POINTER_TYPE} ne "ref") {
 952                         $self->pidl("if ($py_var == Py_None) {");
 953                         $self->indent;
 954                         $self->pidl("$var_name = NULL;");
 955                         $self->deindent;
 956                         $self->pidl("} else {");
 957                         $self->indent;
 958                 }
 959                 $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
 960                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, get_value_of($var_name), $fail);
 961                 if ($l->{POINTER_TYPE} ne "ref") {
 962                         $self->deindent;
 963                         $self->pidl("}");
 964                 }
 965         } elsif ($l->{TYPE} eq "ARRAY") {
 966                 my $pl = GetPrevLevel($e, $l);
 967                 if ($pl && $pl->{TYPE} eq "POINTER") {
 968                         $var_name = get_pointer_to($var_name);
 969                 }
 970
 971                 if (is_charset_array($e, $l)) {
 972                         $self->pidl("PY_CHECK_TYPE(&PyUnicode_Type, $py_var, $fail);");
 973                         # FIXME: Use Unix charset setting rather than utf-8
 974                         $self->pidl($var_name . " = PyString_AsString(PyUnicode_AsEncodedString($py_var, \"utf-8\", \"ignore\"));");
 975                 } else {
 976                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
 977                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
 978                         $self->pidl("{");
 979                         $self->indent;
 980                         $self->pidl("int $counter;");
 981                         if (ArrayDynamicallyAllocated($e, $l)) {
 982                                 $self->pidl("$var_name = talloc_array_ptrtype($mem_ctx, $var_name, PyList_Size($py_var));");
 983                         }
 984                         $self->pidl("for ($counter = 0; $counter < PyList_Size($py_var); $counter++) {");
 985                         $self->indent;
 986                         $self->ConvertObjectFromPythonLevel($env, $var_name, "PyList_GetItem($py_var, $counter)", $e, GetNextLevel($e, $l), $var_name."[$counter]", $fail);
 987                         $self->deindent;
 988                         $self->pidl("}");
 989                         $self->deindent;
 990                         $self->pidl("}");
 991                 }
 992         } elsif ($l->{TYPE} eq "DATA") {
 993
 994                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
 995                         $var_name = get_pointer_to($var_name);
 996                 }
 997                 $self->ConvertObjectFromPythonData($mem_ctx, $py_var, $l->{DATA_TYPE}, $var_name, $fail);
 998         } elsif ($l->{TYPE} eq "SWITCH") {
 999                 $var_name = get_pointer_to($var_name);
1000                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
1001                 $self->assign($var_name, "py_export_" . GetNextLevel($e, $l)->{DATA_TYPE} . "($mem_ctx, $switch, $py_var)");
1002         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
1003                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, GetNextLevel($e, $l), $var_name, $fail);
1004         } else {
1005                 die("unknown level type $l->{TYPE}");
1006         }
1007 }
1008
1009 sub ConvertObjectFromPython($$$$$$$)
1010 {
1011         my ($self, $env, $mem_ctx, $ctype, $cvar, $target, $fail) = @_;
1012
1013         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $cvar, $ctype, $ctype->{LEVELS}[0], $target, $fail);
1014 }
1015
1016 sub ConvertScalarToPython($$$)
1017 {
1018         my ($self, $ctypename, $cvar) = @_;
1019
1020         die("expected string for $cvar, not $ctypename") if (ref($ctypename) eq "HASH");
1021
1022         $ctypename = expandAlias($ctypename);
1023
1024         if ($ctypename =~ /^(char|u?int[0-9]*|hyper|dlong|udlong|udlongr|time_t|NTTIME_hyper|NTTIME|NTTIME_1sec)$/) {
1025                 return "PyInt_FromLong($cvar)";
1026         }
1027
1028         if ($ctypename eq "DATA_BLOB") {
1029                 return "PyString_FromStringAndSize((char *)($cvar).data, ($cvar).length)";
1030         }
1031
1032         if ($ctypename eq "NTSTATUS") {
1033                 return "PyErr_FromNTSTATUS($cvar)";
1034         }
1035
1036         if ($ctypename eq "WERROR") {
1037                 return "PyErr_FromWERROR($cvar)";
1038         }
1039
1040         if (($ctypename eq "string" or $ctypename eq "nbt_string" or $ctypename eq "nbt_name" or $ctypename eq "wrepl_nbt_name")) {
1041                 return "PyString_FromString($cvar)";
1042         }
1043
1044         # Not yet supported
1045         if ($ctypename eq "string_array") { return "PyCObject_FromVoidPtr($cvar)"; }
1046         if ($ctypename eq "ipv4address") { return "PyString_FromString($cvar)"; }
1047         if ($ctypename eq "pointer") {
1048                 return "PyCObject_FromVoidPtr($cvar, talloc_free)";
1049         }
1050
1051         die("Unknown scalar type $ctypename");
1052 }
1053
1054 sub ConvertObjectToPythonData($$$$$)
1055 {
1056         my ($self, $mem_ctx, $ctype, $cvar) = @_;
1057
1058         die("undef type for $cvar") unless(defined($ctype));
1059
1060         $ctype = resolveType($ctype);
1061
1062         my $actual_ctype = $ctype;
1063         while ($actual_ctype->{TYPE} eq "TYPEDEF") {
1064                 $actual_ctype = $actual_ctype->{DATA};
1065         }
1066
1067         if ($actual_ctype->{TYPE} eq "ENUM") {
1068                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::enum_type_fn($actual_ctype), $cvar);
1069         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
1070                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::bitmap_type_fn($actual_ctype), $cvar);
1071         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
1072                 return $self->ConvertScalarToPython($actual_ctype->{NAME}, $cvar);
1073         } elsif ($actual_ctype->{TYPE} eq "UNION") {
1074                 fatal($ctype, "union without discriminant: " . mapTypeName($ctype) . ": $cvar");
1075         } elsif ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
1076                 my $ctype_name = $self->use_type_variable($ctype);
1077                 return "py_talloc_import_ex($ctype_name, $mem_ctx, $cvar)";
1078         }
1079
1080         fatal($ctype, "unknown type $actual_ctype->{TYPE} for ".mapTypeName($ctype) . ": $cvar");
1081 }
1082
1083 sub fail_on_null($$$)
1084 {
1085         my ($self, $var, $fail) = @_;
1086         $self->pidl("if ($var == NULL) {");
1087         $self->indent;
1088         $self->pidl($fail);
1089         $self->deindent;
1090         $self->pidl("}");
1091 }
1092
1093 sub ConvertObjectToPythonLevel($$$$$$)
1094 {
1095         my ($self, $mem_ctx, $env, $e, $l, $var_name, $py_var, $fail) = @_;
1096         my $nl = GetNextLevel($e, $l);
1097
1098         if ($l->{TYPE} eq "POINTER") {
1099                 if ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1100                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name, $py_var, $fail);
1101                         return;
1102                 }
1103                 if ($l->{POINTER_TYPE} ne "ref") {
1104                         $self->pidl("if ($var_name == NULL) {");
1105                         $self->indent;
1106                         $self->pidl("$py_var = Py_None;");
1107                         $self->deindent;
1108                         $self->pidl("} else {");
1109                         $self->indent;
1110                 }
1111                 $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, get_value_of($var_name), $py_var, $fail);
1112                 if ($l->{POINTER_TYPE} ne "ref") {
1113                         $self->deindent;
1114                         $self->pidl("}");
1115                 }
1116         } elsif ($l->{TYPE} eq "ARRAY") {
1117                 my $pl = GetPrevLevel($e, $l);
1118                 if ($pl && $pl->{TYPE} eq "POINTER") {
1119                         $var_name = get_pointer_to($var_name);
1120                 }
1121
1122                 if (is_charset_array($e, $l)) {
1123                         # FIXME: Use Unix charset setting rather than utf-8
1124                         $self->pidl("$py_var = PyUnicode_Decode($var_name, strlen($var_name), \"utf-8\", \"ignore\");");
1125                 } else {
1126                         die("No SIZE_IS for array $var_name") unless (defined($l->{SIZE_IS}));
1127                         my $length = $l->{SIZE_IS};
1128                         if (defined($l->{LENGTH_IS})) {
1129                                 $length = $l->{LENGTH_IS};
1130                         }
1131
1132                         $length = ParseExpr($length, $env, $e);
1133                         $self->pidl("$py_var = PyList_New($length);");
1134                         $self->fail_on_null($py_var, $fail);
1135                         $self->pidl("{");
1136                         $self->indent;
1137                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
1138                         $self->pidl("int $counter;");
1139                         $self->pidl("for ($counter = 0; $counter < $length; $counter++) {");
1140                         $self->indent;
1141                         my $member_var = "py_$e->{NAME}_$l->{LEVEL_INDEX}";
1142                         $self->pidl("PyObject *$member_var;");
1143                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, GetNextLevel($e, $l), $var_name."[$counter]", $member_var, $fail);
1144                         $self->pidl("PyList_SetItem($py_var, $counter, $member_var);");
1145                         $self->deindent;
1146                         $self->pidl("}");
1147                         $self->deindent;
1148                         $self->pidl("}");
1149                 }
1150         } elsif ($l->{TYPE} eq "SWITCH") {
1151                 $var_name = get_pointer_to($var_name);
1152                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
1153                 $self->pidl("$py_var = py_import_" . GetNextLevel($e, $l)->{DATA_TYPE} . "($mem_ctx, $switch, $var_name);");
1154                 $self->fail_on_null($py_var, $fail);
1155
1156         } elsif ($l->{TYPE} eq "DATA") {
1157                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
1158                         $var_name = get_pointer_to($var_name);
1159                 }
1160                 my $conv = $self->ConvertObjectToPythonData($mem_ctx, $l->{DATA_TYPE}, $var_name);
1161                 $self->pidl("$py_var = $conv;");
1162         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
1163                 $self->ConvertObjectToPythonLevel($mem_ctx, $env, $e, GetNextLevel($e, $l), $var_name, $py_var, $fail);
1164         } else {
1165                 die("Unknown level type $l->{TYPE} $var_name");
1166         }
1167 }
1168
1169 sub ConvertObjectToPython($$$$$$)
1170 {
1171         my ($self, $mem_ctx, $env, $ctype, $cvar, $py_var, $fail) = @_;
1172
1173         $self->ConvertObjectToPythonLevel($mem_ctx, $env, $ctype, $ctype->{LEVELS}[0], $cvar, $py_var, $fail);
1174 }
1175
1176 sub Parse($$$$$)
1177 {
1178     my($self,$basename,$ndr,$ndr_hdr,$hdr) = @_;
1179
1180         $self->{BASENAME} = $basename;
1181
1182     $self->pidl_hdr("
1183 /* Python wrapper functions auto-generated by pidl */
1184 #include \"includes.h\"
1185 #include <Python.h>
1186 #include \"librpc/rpc/dcerpc.h\"
1187 #include \"lib/talloc/pytalloc.h\"
1188 #include \"librpc/rpc/pyrpc.h\"
1189 #include \"lib/events/events.h\"
1190 #include \"$hdr\"
1191 #include \"$ndr_hdr\"
1192
1193 ");
1194
1195         foreach my $x (@$ndr) {
1196                 ($x->{TYPE} eq "IMPORT") && $self->Import(@{$x->{PATHS}});
1197             ($x->{TYPE} eq "INTERFACE") && $self->Interface($x, $basename);
1198         }
1199
1200         $self->pidl("static PyMethodDef $basename\_methods[] = {");
1201         $self->indent;
1202         foreach (@{$self->{module_methods}}) {
1203                 my ($fn_name, $pyfn_name, $flags, $doc) = @$_;
1204                 $self->pidl("{ \"$fn_name\", (PyCFunction)$pyfn_name, $flags, $doc },");
1205         }
1206
1207         $self->pidl("{ NULL, NULL, 0, NULL }");
1208         $self->deindent;
1209         $self->pidl("};");
1210
1211         $self->pidl("");
1212
1213         $self->pidl("void init$basename(void)");
1214         $self->pidl("{");
1215         $self->indent;
1216         $self->pidl("PyObject *m;");
1217         foreach (@{$self->{module_imports}}) {
1218                 $self->pidl("PyObject *dep_$_;");
1219         }
1220         $self->pidl("");
1221
1222         foreach (@{$self->{module_imports}}) {
1223                 $self->pidl("dep_$_ = PyImport_ImportModule(\"samba.dcerpc.$_\");");
1224                 $self->pidl("if (dep_$_ == NULL)");
1225                 $self->pidl("\treturn;");
1226                 $self->pidl("");
1227         }
1228
1229         foreach (keys %{$self->{type_imports}}) {
1230                 my $basefile = $self->{type_imports}->{$_};
1231                 $self->pidl_hdr("static PyTypeObject *$_\_Type;\n");
1232                 $self->pidl("$_\_Type = (PyTypeObject *)PyObject_GetAttrString(dep_$basefile, \"$_\");");
1233                 $self->pidl("if ($_\_Type == NULL)");
1234                 $self->pidl("\treturn;");
1235                 $self->pidl("");
1236         }
1237
1238         foreach (@{$self->{ready_types}}) {
1239                 $self->pidl("if (PyType_Ready($_) < 0)");
1240                 $self->pidl("\treturn;");
1241         }
1242
1243         $self->pidl($_) foreach (@{$self->{readycode}});
1244
1245         foreach (@{$self->{patch_type_calls}}) {
1246                 my ($typename, $cvar) = @$_;
1247                 $self->pidl("#ifdef PY_".uc($typename)."_PATCH");
1248                 $self->pidl("PY_".uc($typename)."_PATCH($cvar);");
1249                 $self->pidl("#endif");
1250         }
1251
1252         $self->pidl("");
1253
1254         $self->pidl("m = Py_InitModule3(\"$basename\", $basename\_methods, \"$basename DCE/RPC\");");
1255         $self->pidl("if (m == NULL)");
1256         $self->pidl("\treturn;");
1257         $self->pidl("");
1258         foreach my $name (keys %{$self->{constants}}) {
1259                 my $py_obj;
1260                 my ($ctype, $cvar) = @{$self->{constants}->{$name}};
1261                 if ($cvar =~ /^[0-9]+$/ or $cvar =~ /^0x[0-9a-fA-F]+$/) {
1262                         $py_obj = "PyInt_FromLong($cvar)";
1263                 } elsif ($cvar =~ /^".*"$/) {
1264                         $py_obj = "PyString_FromString($cvar)";
1265                 } else {
1266                         $py_obj = $self->ConvertObjectToPythonData("NULL", expandAlias($ctype), $cvar);
1267                 }
1268
1269                 $self->pidl("PyModule_AddObject(m, \"$name\", $py_obj);");
1270         }
1271
1272         foreach (@{$self->{module_objects}}) {
1273                 my ($object_name, $c_name) = @$_;
1274                 $self->pidl("Py_INCREF($c_name);");
1275                 $self->pidl("PyModule_AddObject(m, \"$object_name\", $c_name);");
1276         }
1277
1278         $self->pidl("#ifdef PY_MOD_".uc($basename)."_PATCH");
1279         $self->pidl("PY_MOD_".uc($basename)."_PATCH(m);");
1280         $self->pidl("#endif");
1281
1282         $self->pidl("");
1283         $self->deindent;
1284         $self->pidl("}");
1285     return ($self->{res_hdr} . $self->{res});
1286 }
1287
1288 1;