###################################################
# Python function wrapper generator
-# Copyright jelmer@samba.org 2007
+# Copyright jelmer@samba.org 2007-2008
# released under the GNU GPL
package Parse::Pidl::Samba4::Python;
@ISA = qw(Exporter);
use strict;
-use Parse::Pidl::Typelist;
+use Parse::Pidl::Typelist qw(hasType getType mapTypeName expandAlias);
use Parse::Pidl::Util qw(has_property ParseExpr);
+use Parse::Pidl::CUtil qw(get_value_of get_pointer_to);
use vars qw($VERSION);
$VERSION = '0.01';
sub new($) {
my ($class) = @_;
- my $self = { res => "", res_hdr => "", tabs => "", constants => {}};
+ my $self = { res => "", res_hdr => "", tabs => "", constants => {},
+ module_methods => []};
bless($self, $class);
}
sub Const($$)
{
my ($self, $const) = @_;
- $self->{constants}->{$const->{NAME}} = [$const->{DATA}->{TYPE}, $const->{VALUE}];
+ $self->register_constant($const->{NAME}, $const->{DTYPE}, $const->{VALUE});
}
-sub FromTypeToPythonFunction($$)
+sub register_constant($$$$)
{
- my ($self, $type) = @_;
+ my ($self, $name, $type, $value) = @_;
- #FIXME
+ $self->{constants}->{$name} = [$type, $value];
}
-sub FromPythonToTypeFunction($$)
+sub EnumAndBitmapConsts($$$)
{
- my ($self, $type) = @_;
+ my ($self, $name, $d) = @_;
- #FIXME
+ return unless (defined($d->{ELEMENTS}));
+
+ foreach my $e (@{$d->{ELEMENTS}}) {
+ $e =~ /^([A-Za-z0-9_]+)=(.*)$/;
+ my $cname = $1;
+
+ $self->register_constant($cname, $d, $cname);
+ }
}
-sub TypeConstructor($$)
+sub FromUnionToPythonFunction($$$)
{
- my ($self, $type) = @_;
+ my ($self, $type, $switch, $name) = @_;
- $self->pidl("staticforward PyTypeObject $type->{NAME}_ObjectType;");
- $self->pidl("typedef struct {");
+ $self->pidl("switch ($switch) {");
$self->indent;
- $self->pidl("PyObject_HEAD");
- $self->pidl("void *object;"); # FIXME: Use real type rather than void
+
+ foreach my $e (@{$type->{ELEMENTS}}) {
+ my $conv = $self->ConvertObjectToPython($e->{TYPE}, "$name->$e->{NAME}");
+ if (defined($e->{CASE})) {
+ $self->pidl("$e->{CASE}: return $conv;");
+ } else {
+ $self->pidl("default: return $conv;");
+ }
+ }
+
$self->deindent;
- $self->pidl("} $type->{NAME}_Object;");
+ $self->pidl("}");
- $self->pidl("");
+ $self->pidl("PyErr_SetString(PyExc_TypeError, \"unknown union level\");");
+ $self->pidl("return NULL;");
+}
- $self->pidl("static PyObject *py_$type->{NAME}_getattr(PyTypeObject *obj, char *name)");
- $self->pidl("{");
+sub FromPythonToUnionFunction($$$$)
+{
+ my ($self, $type, $switch, $mem_ctx, $name) = @_;
+
+ $self->pidl("switch ($switch) {");
$self->indent;
- $self->pidl("return Py_None;");
+
+ foreach my $e (@{$type->{ELEMENTS}}) {
+ my $conv = $self->ConvertObjectFromPython($e->{TYPE}, "$name");
+ if (defined($e->{CASE})) {
+ $self->pidl("$e->{CASE}: return $conv;");
+ } else {
+ $self->pidl("default: return $conv;");
+ }
+ }
+
$self->deindent;
$self->pidl("}");
+ $self->pidl("");
+ $self->pidl("PyErr_SetString(PyExc_TypeError, \"invalid union level value\");");
+ $self->pidl("return NULL;");
+}
+
+sub PythonStruct($$$$)
+{
+ my ($self, $name, $cname, $d) = @_;
+
+ $self->pidl("staticforward PyTypeObject $name\_ObjectType;");
+
$self->pidl("");
- $self->pidl("static void py_$type->{NAME}_dealloc(PyObject* self)");
+ $self->pidl("static PyObject *py_$name\_getattr(PyTypeObject *obj, char *name)");
$self->pidl("{");
$self->indent;
- $self->pidl("$type->{NAME}_Object *obj = ($type->{NAME}_Object *)self;");
- $self->pidl("talloc_free(obj->object);");
- $self->pidl("PyObject_Del(self);");
+ $self->pidl("py_talloc_Object *py_object = (py_talloc_Object *)obj;");
+ $self->pidl("$cname *object = py_talloc_get_type(py_object, $cname);");
+ foreach my $e (@{$d->{ELEMENTS}}) {
+ $self->pidl("if (!strcmp(name, \"$e->{NAME}\")) {");
+ my $varname = "object->$e->{NAME}";
+ $self->indent;
+ $self->pidl("return ".$self->ConvertObjectToPython($e->{TYPE}, $varname) . ";");
+ $self->deindent;
+ $self->pidl("}");
+ }
+ $self->pidl("PyErr_SetString(PyExc_AttributeError, \"no such attribute\");");
+ $self->pidl("return NULL;");
$self->deindent;
$self->pidl("}");
$self->pidl("");
- $self->pidl("static PyObject *py_$type->{NAME}_setattr(PyTypeObject *obj, char *name, PyObject *value)");
+ $self->pidl("static PyObject *py_$name\_setattr(PyTypeObject *obj, char *name, PyObject *value)");
$self->pidl("{");
$self->indent;
- $self->pidl("return Py_None;");
+ $self->pidl("py_talloc_Object *py_object = (py_talloc_Object *)obj;");
+ $self->pidl("$cname *object = py_talloc_get_type(py_object, $cname);");
+ foreach my $e (@{$d->{ELEMENTS}}) {
+ $self->pidl("if (!strcmp(name, \"$e->{NAME}\")) {");
+ my $varname = "object->$e->{NAME}";
+ $self->indent;
+ $self->pidl("/* FIXME: talloc_free($varname) if necessary */");
+ $self->pidl("$varname = " . $self->ConvertObjectFromPython($e->{TYPE}, "value") . ";");
+ $self->deindent;
+ $self->pidl("}");
+ }
+ $self->pidl("PyErr_SetString(PyExc_AttributeError, \"no such attribute\");");
+ $self->pidl("return NULL;");
$self->deindent;
$self->pidl("}");
$self->pidl("");
- $self->pidl("static PyTypeObject $type->{NAME}_ObjectType = {");
+ $self->pidl("static PyTypeObject $name\_ObjectType = {");
$self->indent;
$self->pidl("PyObject_HEAD_INIT(NULL) 0,");
- $self->pidl(".tp_name = \"$type->{NAME}\",");
- $self->pidl(".tp_basicsize = sizeof($type->{NAME}_Object),");
- $self->pidl(".tp_dealloc = (destructor)py_$type->{NAME}_dealloc,");
- $self->pidl(".tp_getattr = (getattrfunc)py_$type->{NAME}_getattr,");
- $self->pidl(".tp_setattr = (setattrfunc)py_$type->{NAME}_setattr,");
+ $self->pidl(".tp_name = \"$name\",");
+ $self->pidl(".tp_basicsize = sizeof(py_talloc_Object),");
+ $self->pidl(".tp_dealloc = (destructor)py_talloc_dealloc,");
+ $self->pidl(".tp_getattr = (getattrfunc)py_$name\_getattr,");
+ $self->pidl(".tp_setattr = (setattrfunc)py_$name\_setattr,");
$self->deindent;
$self->pidl("};");
$self->pidl("");
- $self->pidl("static PyObject *py_$type->{NAME}(PyObject *self, PyObject *args)");
+ my $py_fnname = "py_$name";
+ $self->pidl("static PyObject *$py_fnname(PyObject *self, PyObject *args)");
$self->pidl("{");
$self->indent;
- $self->pidl("$type->{NAME}\_Object *ret;");
- $self->pidl("ret = PyObject_New($type->{NAME}_Object, &$type->{NAME}_ObjectType);");
- $self->pidl("return (PyObject *) ret;");
+ $self->pidl("$cname *ret = talloc_zero(NULL, $cname);");
+ $self->pidl("return py_talloc_import(&$name\_ObjectType, ret);");
$self->deindent;
$self->pidl("}");
$self->pidl("");
+
+ return $py_fnname;
}
sub PythonFunction($$$)
$self->indent;
$self->pidl("$iface\_InterfaceObject *iface = ($iface\_InterfaceObject *)self;");
$self->pidl("NTSTATUS status;");
- $self->pidl("");
- # FIXME
- $self->handle_ntstatus("status", "NULL");
- $self->pidl("return Py_None;");
+ $self->pidl("TALLOC_CTX *mem_ctx = talloc_new(NULL);");
+ $self->pidl("struct $fn->{NAME} r;");
+ $self->pidl("PyObject *result;");
+ my $result_size = 0;
+
+ foreach my $e (@{$fn->{ELEMENTS}}) {
+ if (grep(/in/,@{$e->{DIRECTION}})) {
+ $self->pidl("PyObject *py_$e->{NAME};");
+ }
+ if (grep(/out/,@{$e->{DIRECTION}})) {
+ $result_size++;
+ }
+ }
+ if ($result_size > 0) {
+ $self->pidl("");
+ $self->pidl("ZERO_STRUCT(r.out);");
+ }
+ if ($fn->{RETURN_TYPE}) {
+ $result_size++;
+ }
+
+ foreach my $e (@{$fn->{ELEMENTS}}) {
+ if (grep(/in/,@{$e->{DIRECTION}})) {
+ $self->pidl("r.in.$e->{NAME} = " . $self->ConvertObjectFromPython($e->{TYPE}, "py_$e->{NAME}") . ";");
+ }
+ }
+ $self->pidl("status = dcerpc_$fn->{NAME}(iface->pipe, mem_ctx, &r);");
+ $self->handle_ntstatus("status", "NULL", "mem_ctx");
+
+ $self->pidl("result = PyTuple_New($result_size);");
+
+ my $i = 0;
+
+ foreach my $e (@{$fn->{ELEMENTS}}) {
+ if (grep(/out/,@{$e->{DIRECTION}})) {
+ $self->pidl("PyTuple_SetItem(result, $i, " . $self->ConvertObjectToPython($e->{TYPE}, "r.out.$e->{NAME}") . ");");
+
+ $i++;
+ }
+ }
+
+ if (defined($fn->{RETURN_TYPE})) {
+ $self->pidl("PyTuple_SetItem(result, $i, " . $self->ConvertObjectToPython($fn->{RETURN_TYPE}, "r.out.result") . ");");
+ }
+
+ $self->pidl("talloc_free(mem_ctx);");
+ $self->pidl("return result;");
$self->deindent;
$self->pidl("}");
$self->pidl("");
}
-sub handle_ntstatus($$$)
+sub handle_ntstatus($$$$)
{
- my ($self, $var, $retval) = @_;
+ my ($self, $var, $retval, $mem_ctx) = @_;
$self->pidl("if (NT_STATUS_IS_ERR($var)) {");
$self->indent;
$self->pidl("PyErr_SetString(PyExc_RuntimeError, nt_errstr($var));");
+ $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
$self->pidl("return $retval;");
$self->deindent;
$self->pidl("}");
$self->pidl("");
}
-sub Interface($$)
+sub PythonType($$$)
{
- my($self,$interface) = @_;
+ my ($self, $d, $interface, $basename) = @_;
+
+ my $actual_ctype = $d;
+ if ($actual_ctype->{TYPE} eq "TYPEDEF") {
+ $actual_ctype = $actual_ctype->{DATA};
+ }
+
+ if ($actual_ctype->{TYPE} eq "STRUCT") {
+ my $py_fnname;
+ if ($d->{TYPE} eq "STRUCT") {
+ $py_fnname = $self->PythonStruct($d->{NAME}, mapTypeName($d), $d);
+ } else {
+ $py_fnname = $self->PythonStruct($d->{NAME}, mapTypeName($d), $d->{DATA});
+ }
+
+ my $fn_name = $d->{NAME};
+
+ $fn_name =~ s/^$interface->{NAME}_//;
+ $fn_name =~ s/^$basename\_//;
+
+ $self->register_module_method($fn_name, $py_fnname, "METH_VARARGS|METH_KEYWORDS", "NULL");
+ }
+
+ if ($d->{TYPE} eq "ENUM" or $d->{TYPE} eq "BITMAP") {
+ $self->EnumAndBitmapConsts($d->{NAME}, $d);
+ }
+
+ if ($d->{TYPE} eq "TYPEDEF" and ($d->{DATA}->{TYPE} eq "ENUM" or $d->{DATA}->{TYPE} eq "BITMAP")) {
+ $self->EnumAndBitmapConsts($d->{NAME}, $d->{DATA});
+ }
+
+ if ($actual_ctype->{TYPE} eq "UNION") {
+ $self->pidl("PyObject *py_import_$d->{NAME}(" .mapTypeName($d) . " *in)");
+ $self->pidl("{");
+ $self->indent;
+ $self->FromUnionToPythonFunction($actual_ctype, "level", "in") if ($actual_ctype->{TYPE} eq "UNION");
+ $self->deindent;
+ $self->pidl("}");
+ $self->pidl("");
+
+ $self->pidl(mapTypeName($d) . " *py_export_$d->{NAME}(TALLOC_CTX *mem_ctx, PyObject *in)");
+ $self->pidl("{");
+ $self->indent;
+ $self->FromPythonToUnionFunction($actual_ctype, "level", "mem_ctx", "in") if ($actual_ctype->{TYPE} eq "UNION");
+ $self->deindent;
+ $self->pidl("}");
+ $self->pidl("");
+ }
+}
+
+sub Interface($$$)
+{
+ my($self,$interface,$basename) = @_;
$self->pidl_hdr("#ifndef _HEADER_PYTHON_$interface->{NAME}\n");
$self->pidl_hdr("#define _HEADER_PYTHON_$interface->{NAME}\n\n");
$self->Const($_) foreach (@{$interface->{CONSTS}});
- foreach (@{$interface->{TYPES}}) {
- $self->FromTypeToPythonFunction($_);
- $self->FromPythonToTypeFunction($_);
- $self->TypeConstructor($_);
+ foreach my $d (@{$interface->{TYPES}}) {
+ next if has_property($d, "nopython");
+
+ $self->PythonType($d, $interface, $basename);
}
$self->pidl("staticforward PyTypeObject $interface->{NAME}_InterfaceType;");
$self->pidl("PyObject_HEAD_INIT(NULL) 0,");
$self->pidl(".tp_name = \"$interface->{NAME}\",");
$self->pidl(".tp_basicsize = sizeof($interface->{NAME}_InterfaceObject),");
- $self->pidl(".tp_dealloc = interface_$interface->{NAME}_dealloc,");
- $self->pidl(".tp_getattr = interface_$interface->{NAME}_getattr,");
+ $self->pidl(".tp_dealloc = (destructor)interface_$interface->{NAME}_dealloc,");
+ $self->pidl(".tp_getattr = (getattrfunc)interface_$interface->{NAME}_getattr,");
$self->deindent;
$self->pidl("};");
$self->pidl("");
+ $self->register_module_method($interface->{NAME}, "interface_$interface->{NAME}", "METH_VARARGS|METH_KEYWORDS", "NULL");
$self->pidl("static PyObject *interface_$interface->{NAME}(PyObject *self, PyObject *args)");
$self->pidl("{");
$self->indent;
$self->pidl("const char *binding_string;");
$self->pidl("struct cli_credentials *credentials;");
$self->pidl("struct loadparm_context *lp_ctx;");
+ $self->pidl("TALLOC_CTX *mem_ctx = NULL;");
$self->pidl("NTSTATUS status;");
$self->pidl("");
$self->pidl("status = dcerpc_pipe_connect(NULL, &ret->pipe, binding_string, ");
$self->pidl(" &ndr_table_$interface->{NAME}, credentials, NULL, lp_ctx);");
- $self->handle_ntstatus("status", "NULL");
+ $self->handle_ntstatus("status", "NULL", "mem_ctx");
$self->pidl("return (PyObject *)ret;");
$self->deindent;
$self->pidl_hdr("#endif /* _HEADER_NDR_$interface->{NAME} */\n");
}
-sub Parse($$$$)
+sub register_module_method($$$$$)
+{
+ my ($self, $fn_name, $pyfn_name, $flags, $doc) = @_;
+
+ push (@{$self->{module_methods}}, [$fn_name, $pyfn_name, $flags, $doc])
+}
+
+sub ConvertObjectFromPython($$$)
+{
+ my ($self, $ctype, $cvar) = @_;
+
+ die("undef type for $cvar") unless(defined($ctype));
+
+ if (ref($ctype) ne "HASH") {
+ $ctype = getType($ctype);
+ }
+
+ if (ref($ctype) ne "HASH") {
+ return "FIXME($cvar)";
+ }
+
+ my $actual_ctype = $ctype;
+ if ($ctype->{TYPE} eq "TYPEDEF") {
+ $actual_ctype = $ctype->{DATA};
+ }
+
+ if ($actual_ctype->{TYPE} eq "ENUM" or $actual_ctype->{TYPE} eq "BITMAP" or
+ $actual_ctype->{TYPE} eq "SCALAR" and (
+ expandAlias($actual_ctype->{NAME}) =~ /^(uint[0-9]+|hyper|NTTIME|time_t|NTTIME_hyper|NTTIME_1sec|dlong|udlong)$/)) {
+ return "PyInt_AsLong($cvar)";
+ }
+
+ if ($actual_ctype->{TYPE} eq "STRUCT") {
+ return "py_talloc_get_type($cvar, " . mapTypeName($ctype) . ")";
+ }
+
+ if ($actual_ctype->{TYPE} eq "UNION") {
+ return "py_export_$ctype->{NAME}($cvar)";
+ }
+
+ return "FIXME($cvar)";
+}
+
+sub ConvertObjectToPython($$$)
+{
+ my ($self, $ctype, $cvar) = @_;
+
+ if ($cvar =~ /^[0-9]+$/ or $cvar =~ /^0x[0-9a-fA-F]+$/) {
+ return "PyInt_FromLong($cvar)";
+ }
+
+ die("undef type for $cvar") unless(defined($ctype));
+
+ if ($cvar =~ /^".*"$/) {
+ return "PyString_FromString($cvar)";
+ }
+
+ if (ref($ctype) ne "HASH") {
+ if (not hasType($ctype)) {
+ if (ref($ctype) eq "HASH") {
+ return "py_import_$ctype->{TYPE}_$ctype->{NAME}($cvar)";
+ } else {
+ return "py_import_$ctype($cvar)"; # best bet
+ }
+ }
+
+ $ctype = getType($ctype);
+ }
+
+ my $actual_ctype = $ctype;
+ if ($ctype->{TYPE} eq "TYPEDEF") {
+ $actual_ctype = $ctype->{DATA};
+ }
+
+ if ($actual_ctype->{TYPE} eq "ENUM" or $actual_ctype->{TYPE} eq "BITMAP" or
+ ($actual_ctype->{TYPE} eq "SCALAR" and
+ expandAlias($actual_ctype->{NAME}) =~ /^(int|long|char|u?int[0-9]+|hyper|dlong|udlong|udlongr|time_t|NTTIME_hyper|NTTIME|NTTIME_1sec)$/)) {
+ return "PyInt_FromLong($cvar)";
+ }
+
+ if ($ctype->{TYPE} eq "TYPEDEF" and $actual_ctype->{TYPE} eq "UNION") {
+ return "py_import_$ctype->{NAME}($cvar)";
+ }
+
+ if ($ctype->{TYPE} eq "TYPEDEF" and $actual_ctype->{TYPE} eq "STRUCT") {
+ # FIXME: if $cvar is not a pointer, do a talloc_dup()
+ return "py_talloc_import(&$ctype->{NAME}_ObjectType, $cvar)";
+ }
+
+ if ($actual_ctype->{TYPE} eq "SCALAR" and
+ expandAlias($actual_ctype->{NAME}) eq "DATA_BLOB") {
+ return "PyString_FromStringAndSize($cvar->data, $cvar->length)";
+ }
+
+ if ($ctype->{TYPE} eq "STRUCT" or $ctype->{TYPE} eq "UNION") {
+ return "py_import_$ctype->{TYPE}_$ctype->{NAME}($cvar)";
+ }
+
+ if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "NTSTATUS") {
+ return "PyInt_FromLong($cvar->v)";
+ }
+
+ if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "WERROR") {
+ return "PyInt_FromLong($cvar->v)";
+ }
+
+ if ($actual_ctype->{TYPE} eq "SCALAR" and
+ ($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")) {
+ return "PyString_FromString($cvar)";
+ }
+
+ if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "string_array") {
+ return "FIXME($cvar)";
+ }
+
+ if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "ipv4address") {
+ return "FIXME($cvar)";
+ }
+
+ if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "pointer") {
+ return "PyCObject_FromVoidPtr($cvar, talloc_free)";
+ }
+
+
+ die("unknown type ".mapTypeName($ctype) . ": $cvar");
+}
+
+sub Parse($$$$$)
{
- my($self,$basename,$ndr,$hdr) = @_;
+ my($self,$basename,$ndr,$ndr_hdr,$hdr) = @_;
my $py_hdr = $hdr;
$py_hdr =~ s/ndr_([^\/]+)$/py_$1/g;
#include \"includes.h\"
#include <Python.h>
#include \"librpc/rpc/dcerpc.h\"
+#include \"scripting/python/pytalloc.h\"
#include \"$hdr\"
+#include \"$ndr_hdr\"
#include \"$py_hdr\"
");
foreach my $x (@$ndr) {
- ($x->{TYPE} eq "INTERFACE") && $self->Interface($x);
+ ($x->{TYPE} eq "INTERFACE") && $self->Interface($x, $basename);
($x->{TYPE} eq "IMPORT") && $self->Import(@{$x->{PATHS}});
}
$self->pidl("static PyMethodDef $basename\_methods[] = {");
$self->indent;
- foreach my $x (@$ndr) {
- next if ($x->{TYPE} ne "INTERFACE");
- $self->pidl("{ \"$x->{NAME}\", (PyCFunction)interface_$x->{NAME}, METH_VARARGS|METH_KEYWORDS, NULL },");
-
- foreach my $d (@{$x->{TYPES}}) {
- next if has_property($d, "nopython");
- next if ($d->{TYPE} eq "ENUM" or $d->{TYPE} eq "BITMAP");
-
- my $fn_name = $d->{NAME};
-
- $fn_name =~ s/^$x->{NAME}_//;
- $fn_name =~ s/^$basename\_//;
-
- $self->pidl("{ \"$fn_name\", (PyCFunction)py_$d->{NAME}, METH_VARARGS|METH_KEYWORDS, NULL },");
- }
+ foreach (@{$self->{module_methods}}) {
+ my ($fn_name, $pyfn_name, $flags, $doc) = @$_;
+ $self->pidl("{ \"$fn_name\", (PyCFunction)$pyfn_name, $flags, $doc },");
}
$self->pidl("{ NULL, NULL, 0, NULL }");
$self->pidl("m = Py_InitModule(\"$basename\", $basename\_methods);");
foreach (keys %{$self->{constants}}) {
# FIXME: Handle non-string constants
- $self->pidl("PyModule_AddObject(m, \"$_\", PyString_FromString(" . $self->{constants}->{$_}->[1] . "));");
+ $self->pidl("PyModule_AddObject(m, \"$_\", " . $self->ConvertObjectToPython($self->{constants}->{$_}->[0], $self->{constants}->{$_}->[1]) . ");");
}
$self->deindent;
$self->pidl("}");
git.samba.org / ira / wip.git / blobdiff