diff options
Diffstat (limited to '_dbus_bindings/string.c')
-rw-r--r-- | _dbus_bindings/string.c | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/_dbus_bindings/string.c b/_dbus_bindings/string.c new file mode 100644 index 0000000..19eab2c --- /dev/null +++ b/_dbus_bindings/string.c @@ -0,0 +1,380 @@ +/* Simple D-Bus types: ObjectPath and other string types. + * + * Copyright (C) 2006-2007 Collabora Ltd. <http://www.collabora.co.uk/> + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include "types-internal.h" +#include <structmember.h> + +/* UTF-8 string representation ====================================== */ + +PyDoc_STRVAR(UTF8String_tp_doc, +"A string represented using UTF-8 - a subtype of `str`.\n" +"\n" +"All strings on D-Bus are required to be valid Unicode; in the \"wire\n" +"protocol\" they're transported as UTF-8.\n" +"\n" +"By default, when byte arrays are converted from D-Bus to Python, they\n" +"come out as a `dbus.String`, which is a subtype of `unicode`.\n" +"If you prefer to get UTF-8 strings (as instances of this class) or you\n" +"want to avoid the conversion overhead of going from UTF-8 to Python's\n" +"internal Unicode representation, you can pass the ``utf8_strings=True``\n" +"keyword argument to any of these methods:\n" +"\n" +"* any D-Bus method proxy, or ``connect_to_signal``, on the objects returned\n" +" by `Bus.get_object`\n" +"* any D-Bus method on a `dbus.Interface`\n" +"* `dbus.Interface.connect_to_signal`\n" +"* `Bus.add_signal_receiver`\n" +"\n" +"\n" +"Constructor::\n" +"\n" +" dbus.UTF8String(value: str or unicode[, variant_level: int]) -> UTF8String\n" +"\n" +"If value is a str object it must be valid UTF-8.\n" +"\n" +"variant_level must be non-negative; the default is 0.\n" +"\n" +":IVariables:\n" +" `variant_level` : int\n" +" Indicates how many nested Variant containers this object\n" +" is contained in: if a message's wire format has a variant containing a\n" +" variant containing a string, this is represented in Python by a\n" +" String or UTF8String with variant_level==2.\n" +":Since: 0.80 (in older versions, use dbus.String)\n" +); + +static PyObject * +UTF8String_tp_new(PyTypeObject *cls, PyObject *args, PyObject *kwargs) +{ + const char *str = NULL; + long variantness = 0; + static char *argnames[] = {"value", "variant_level", NULL}; + PyObject *unicode; + + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|l:__new__", argnames, + &str, &variantness)) return NULL; + unicode = PyUnicode_DecodeUTF8(str, strlen(str), NULL); + if (!unicode) return NULL; + Py_DECREF(unicode); + return (DBusPyStrBase_Type.tp_new)(cls, args, kwargs); +} + +PyTypeObject DBusPyUTF8String_Type = { + PyObject_HEAD_INIT(DEFERRED_ADDRESS(&PyType_Type)) + 0, + "dbus.UTF8String", + 0, + 0, + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + 0, /* tp_hash */ + 0, /* tp_call */ + 0, /* tp_str */ + 0, /* tp_getattro */ + 0, /* tp_setattro */ + 0, /* tp_as_buffer */ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ + UTF8String_tp_doc, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + 0, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + DEFERRED_ADDRESS(&DBusPyStrBase_Type), /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + UTF8String_tp_new, /* tp_new */ +}; + +/* Object path ====================================================== */ + +PyDoc_STRVAR(ObjectPath_tp_doc, +"A D-Bus object path, such as '/com/example/MyApp/Documents/abc'.\n" +"\n" +"ObjectPath is a subtype of str, and object-paths behave like strings.\n" +"\n" +"Constructor::\n" +"\n" +" dbus.ObjectPath(path: str, variant_level: int) -> ObjectPath\n" +"\n" +"path must be an ASCII string following the syntax of object paths.\n" +"variant_level must be non-negative; the default is 0.\n" +"\n" +":IVariables:\n" +" `variant_level` : int\n" +" Indicates how many nested Variant containers this object\n" +" is contained in: if a message's wire format has a variant containing a\n" +" variant containing an object path, this is represented in Python by an\n" +" ObjectPath with variant_level==2.\n" +); + +static PyObject * +ObjectPath_tp_new(PyTypeObject *cls, PyObject *args, PyObject *kwargs) +{ + const char *str = NULL; + long variantness = 0; + static char *argnames[] = {"object_path", "variant_level", NULL}; + + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|l:__new__", argnames, + &str, &variantness)) return NULL; + if (!dbus_py_validate_object_path(str)) { + return NULL; + } + return (DBusPyStrBase_Type.tp_new)(cls, args, kwargs); +} + +PyTypeObject DBusPyObjectPath_Type = { + PyObject_HEAD_INIT(DEFERRED_ADDRESS(&PyType_Type)) + 0, + "dbus.ObjectPath", + 0, + 0, + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + 0, /* tp_hash */ + 0, /* tp_call */ + 0, /* tp_str */ + 0, /* tp_getattro */ + 0, /* tp_setattro */ + 0, /* tp_as_buffer */ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ + ObjectPath_tp_doc, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + 0, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + DEFERRED_ADDRESS(&DBusPyStrBase_Type), /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + ObjectPath_tp_new, /* tp_new */ +}; + +/* Unicode string representation ==================================== */ + +PyDoc_STRVAR(String_tp_doc, +"A string represented using Unicode - a subtype of `unicode`.\n" +"\n" +"All strings on D-Bus are required to be valid Unicode; in the \"wire\n" +"protocol\" they're transported as UTF-8.\n" +"\n" +"By default, when strings are converted from D-Bus to Python, they\n" +"come out as this class. If you prefer to get UTF-8 strings (as instances\n" +"of a subtype of `str`) or you want to avoid the conversion overhead of\n" +"going from UTF-8 to Python's internal Unicode representation, see the\n" +"documentation for `dbus.UTF8String`.\n" +"\n" +"Constructor::\n" +"\n" +" String(value: str or unicode[, variant_level: int]) -> String\n" +"\n" +"variant_level must be non-negative; the default is 0.\n" +"\n" +":IVariables:\n" +" `variant_level` : int\n" +" Indicates how many nested Variant containers this object\n" +" is contained in: if a message's wire format has a variant containing a\n" +" variant containing a string, this is represented in Python by a\n" +" String or UTF8String with variant_level==2.\n" +); + +static PyMemberDef String_tp_members[] = { + {"variant_level", T_LONG, offsetof(DBusPyString, variant_level), + READONLY, + "The number of nested variants wrapping the real data. " + "0 if not in a variant"}, + {NULL}, +}; + +static PyObject * +String_tp_new(PyTypeObject *cls, PyObject *args, PyObject *kwargs) +{ + PyObject *self; + long variantness = 0; + static char *argnames[] = {"variant_level", NULL}; + + if (PyTuple_Size(args) > 1) { + PyErr_SetString(PyExc_TypeError, + "__new__ takes at most one positional parameter"); + return NULL; + } + if (!PyArg_ParseTupleAndKeywords(dbus_py_empty_tuple, kwargs, + "|l:__new__", argnames, + &variantness)) return NULL; + if (variantness < 0) { + PyErr_SetString(PyExc_ValueError, + "variant_level must be non-negative"); + return NULL; + } + self = (PyUnicode_Type.tp_new)(cls, args, NULL); + if (self) { + ((DBusPyString *)self)->variant_level = variantness; + } + return self; +} + +static PyObject * +String_tp_repr(PyObject *self) +{ + PyObject *parent_repr = (PyUnicode_Type.tp_repr)(self); + PyObject *my_repr; + + if (!parent_repr) { + return NULL; + } + if (((DBusPyString *)self)->variant_level > 0) { + my_repr = PyString_FromFormat("%s(%s, variant_level=%ld)", + self->ob_type->tp_name, + PyString_AS_STRING(parent_repr), + ((DBusPyString *)self)->variant_level); + } + else { + my_repr = PyString_FromFormat("%s(%s)", self->ob_type->tp_name, + PyString_AS_STRING(parent_repr)); + } + /* whether my_repr is NULL or not: */ + Py_DECREF(parent_repr); + return my_repr; +} + +PyTypeObject DBusPyString_Type = { + PyObject_HEAD_INIT(DEFERRED_ADDRESS(&PyType_Type)) + 0, + "dbus.String", + sizeof(DBusPyString), + 0, + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + String_tp_repr, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + 0, /* tp_hash */ + 0, /* tp_call */ + 0, /* tp_str */ + PyObject_GenericGetAttr, /* tp_getattro */ + dbus_py_immutable_setattro, /* tp_setattro */ + 0, /* tp_as_buffer */ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ + String_tp_doc, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + 0, /* tp_methods */ + String_tp_members, /* tp_members */ + 0, /* tp_getset */ + DEFERRED_ADDRESS(&PyUnicode_Type), /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + String_tp_new, /* tp_new */ +}; + +dbus_bool_t +dbus_py_init_string_types(void) +{ + /* don't need to do strange contortions for unicode, since it's not a + * "variable-size" object (it has a pointer to its data instead) + */ + if (PyUnicode_Type.tp_itemsize != 0) { + fprintf(stderr, "dbus-python is not compatible with this version of " + "Python (unicode objects are assumed to be fixed-size)"); + return 0; + } + DBusPyString_Type.tp_base = &PyUnicode_Type; + if (PyType_Ready(&DBusPyString_Type) < 0) return 0; + DBusPyString_Type.tp_print = NULL; + + DBusPyUTF8String_Type.tp_base = &DBusPyStrBase_Type; + if (PyType_Ready(&DBusPyUTF8String_Type) < 0) return 0; + DBusPyUTF8String_Type.tp_print = NULL; + + DBusPyObjectPath_Type.tp_base = &DBusPyStrBase_Type; + if (PyType_Ready(&DBusPyObjectPath_Type) < 0) return 0; + DBusPyObjectPath_Type.tp_print = NULL; + + DBusPyBoolean_Type.tp_base = &DBusPyIntBase_Type; + if (PyType_Ready(&DBusPyBoolean_Type) < 0) return 0; + DBusPyBoolean_Type.tp_print = NULL; + + return 1; +} + +dbus_bool_t +dbus_py_insert_string_types(PyObject *this_module) +{ + Py_INCREF(&DBusPyObjectPath_Type); + Py_INCREF(&DBusPyUTF8String_Type); + Py_INCREF(&DBusPyString_Type); + if (PyModule_AddObject(this_module, "ObjectPath", + (PyObject *)&DBusPyObjectPath_Type) < 0) return 0; + if (PyModule_AddObject(this_module, "UTF8String", + (PyObject *)&DBusPyUTF8String_Type) < 0) return 0; + if (PyModule_AddObject(this_module, "String", + (PyObject *)&DBusPyString_Type) < 0) return 0; + + return 1; +} + +/* vim:set ft=c cino< sw=4 sts=4 et: */ |