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GSSAPI="BASE" # this ensures that a full module is generated by Cython
from gssapi.raw.cython_types cimport *
from gssapi.raw.oids cimport OID
from gssapi.raw.misc import GSSError
from gssapi.raw.named_tuples import DisplayNameResult
cdef extern from "python_gssapi.h":
OM_uint32 gss_import_name(OM_uint32 *min_stat,
const gss_buffer_t input_buffer,
const gss_OID name_type,
gss_name_t *output_name) nogil
OM_uint32 gss_display_name(OM_uint32 *min_stat,
const gss_name_t name,
gss_buffer_t output_buffer,
gss_OID *output_name_type) nogil
OM_uint32 gss_compare_name(OM_uint32 *min_stat,
const gss_name_t name1,
const gss_name_t name2,
int *is_equal) nogil
OM_uint32 gss_export_name(OM_uint32 *min_stat,
const gss_name_t name,
gss_buffer_t output_buffer) nogil
OM_uint32 gss_canonicalize_name(OM_uint32 *min_stat,
const gss_name_t input_name,
const gss_OID mech_type,
gss_name_t *output_name) nogil
OM_uint32 gss_duplicate_name(OM_uint32 *min_stat,
const gss_name_t input_name,
gss_name_t *output_name) nogil
OM_uint32 gss_release_name(OM_uint32 *min_stat,
gss_name_t *name) nogil
cdef class Name:
# defined in pxd
# cdef gss_name_t raw_name
def __cinit__(self, Name cpy=None):
if cpy is not None:
self.raw_name = cpy.raw_name
cpy.raw_name = GSS_C_NO_NAME
else:
self.raw_name = GSS_C_NO_NAME
def __dealloc__(self):
# essentially just releaseName(self), but it is unsafe to call
# methods
cdef OM_uint32 maj_stat, min_stat
if self.raw_name is not GSS_C_NO_NAME:
maj_stat = gss_release_name(&min_stat, &self.raw_name)
if maj_stat != GSS_S_COMPLETE:
raise GSSError(maj_stat, min_stat)
self.raw_name = NULL
def import_name(name not None, OID name_type=None):
cdef gss_OID nt
if name_type is None:
nt = GSS_C_NO_OID
else:
nt = &name_type.raw_oid
# GSS_C_EMPTY_BUFFER
cdef gss_buffer_desc name_buffer = gss_buffer_desc(0, NULL)
name_buffer.length = len(name)
name_buffer.value = name
cdef gss_name_t output_name
cdef OM_uint32 maj_stat, min_stat
with nogil:
maj_stat = gss_import_name(&min_stat, &name_buffer,
nt, &output_name)
cdef Name on = Name()
if maj_stat == GSS_S_COMPLETE:
on.raw_name = output_name
return on
else:
raise GSSError(maj_stat, min_stat)
def display_name(Name name not None, name_type=True):
# GSS_C_EMPTY_BUFFER
cdef gss_buffer_desc output_buffer = gss_buffer_desc(0, NULL)
cdef gss_OID output_name_type
cdef gss_OID *output_name_type_ptr
if name_type:
output_name_type_ptr = &output_name_type
else:
output_name_type_ptr = NULL
cdef OM_uint32 maj_stat, min_stat
maj_stat = gss_display_name(&min_stat, name.raw_name,
&output_buffer, output_name_type_ptr)
cdef OID py_name_type
if maj_stat == GSS_S_COMPLETE:
text = (<char*>output_buffer.value)[:output_buffer.length]
gss_release_buffer(&min_stat, &output_buffer)
if name_type:
if output_name_type == GSS_C_NO_OID:
# whoops, an implementation was being lazy...
py_name_type = None
else:
py_name_type = OID()
py_name_type.raw_oid = output_name_type[0]
else:
py_name_type = None
return DisplayNameResult(text, py_name_type)
else:
raise GSSError(maj_stat, min_stat)
def compare_name(Name name1=None, Name name2=None):
# check for either value being None
if name1 is None and name2 is None:
return True
elif name1 is None or name2 is None:
return False
cdef int is_equal
cdef OM_uint32 maj_stat, min_stat
maj_stat = gss_compare_name(&min_stat, name1.raw_name,
name2.raw_name, &is_equal)
if maj_stat == GSS_S_COMPLETE:
return <bint>is_equal
else:
raise GSSError(maj_stat, min_stat)
def export_name(Name name not None):
# GSS_C_EMPTY_BUFFER
cdef gss_buffer_desc exported_name = gss_buffer_desc(0, NULL)
cdef OM_uint32 maj_stat, min_stat
maj_stat = gss_export_name(&min_stat, name.raw_name, &exported_name)
if maj_stat == GSS_S_COMPLETE:
# force conversion to a python string with the specified length
# (we use the slice to tell cython that we know the length already)
res = (<char*>exported_name.value)[:exported_name.length]
gss_release_buffer(&min_stat, &exported_name)
return res
else:
raise GSSError(maj_stat, min_stat)
def canonicalize_name(Name name not None, OID mech not None):
cdef gss_name_t canonicalized_name
cdef OM_uint32 maj_stat, min_stat
with nogil:
maj_stat = gss_canonicalize_name(&min_stat, name.raw_name,
&mech.raw_oid,
&canonicalized_name)
cdef Name cn = Name()
if maj_stat == GSS_S_COMPLETE:
cn.raw_name = canonicalized_name
return cn
else:
raise GSSError(maj_stat, min_stat)
def duplicate_name(Name name not None):
cdef gss_name_t new_name
cdef OM_uint32 maj_stat, min_stat
maj_stat = gss_duplicate_name(&min_stat, name.raw_name, &new_name)
cdef Name on = Name()
if maj_stat == GSS_S_COMPLETE:
on.raw_name = new_name
return on
else:
raise GSSError(maj_stat, min_stat)
def release_name(Name name not None):
cdef OM_uint32 maj_stat, min_stat
maj_stat = gss_release_name(&min_stat, &name.raw_name)
if maj_stat != GSS_S_COMPLETE:
raise GSSError(maj_stat, min_stat)
name.raw_name = NULL
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