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# This file is part of ssh2-python.

# This library is free software; you can redistribute it and/or

# modify it under the terms of the GNU Lesser General Public

# License as published by the Free Software Foundation, version 2.1.

# This library is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public

# License along with this library; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

from libc.stdlib cimport malloc, free

from session cimport Session

from utils cimport to_bytes, handle_error_codes

cimport c_pkey

cdef object PyPublicKeyList(c_pkey.libssh2_publickey_list *_list):

cdef PublicKeyList key_list = PublicKeyList.__new__(PublicKeyList)

key_list.key_list = _list

return key_list

cdef class PublicKeyList:

cdef c_pkey.libssh2_publickey_list *key_list

cdef PublicKeySystem pkey_s

def __cinit__(self, PublicKeySystem pkey_s):

self.key_list = NULL

self.pkey_s = pkey_s

def __dealloc__(self):

with nogil:

c_pkey.libssh2_publickey_list_free(

self.pkey_s.pkey_s, self.key_list)

@property

def name(self):

return self.attr.name

@property

def name_len(self):

return self.attr.name_len

@property

def blob(self):

return self.attr.blob

@property

def blob_len(self):

return self.attr.blob_len

@property

def num_attrs(self):

return self.attr.num_attrs

cdef class PublicKeyAttribute:

"""Public key attributes"""

cdef c_pkey.libssh2_publickey_attribute attr

def __cinit__(self, bytes name, bytes value, char mandatory):

cdef char *_name = name

cdef char *_value = value

cdef unsigned long name_len = len(name)

cdef unsigned long value_len = len(value)

self.attr = c_pkey.libssh2_publickey_attribute(

_name, name_len, _value, value_len, mandatory)

@property

def name(self):

return self.attr.name

@property

def name_len(self):

return self.attr.name_len

@property

def value(self):

return self.attr.value

@property

def value_len(self):

return self.attr.value_len

@property

def mandatory(self):

return self.attr.mandatory

cdef c_pkey.libssh2_publickey_attribute * to_c_attr(list attrs):

cdef c_pkey.libssh2_publickey_attribute *_attrs

cdef size_t size = len(attrs)

cdef c_pkey.libssh2_publickey_attribute attr

with nogil:

_attrs = <c_pkey.libssh2_publickey_attribute *>malloc(

(size + 1) * sizeof(c_pkey.libssh2_publickey_attribute))

if _attrs is NULL:

with gil:

raise MemoryError

for i in range(size):

attr = attrs[i].attr

with nogil:

_attrs[i] = attr

return _attrs

cdef object PyPublicKeySystem(c_pkey.LIBSSH2_PUBLICKEY *_pkey_s,

Session session):

cdef PublicKeySystem pkey_s = PublicKeySystem.__new__(

PublicKeySystem, session)

pkey_s.pkey_s = _pkey_s

return pkey_s

cdef class PublicKeySystem:

"""Public Key subsystem. Methods for managing public keys on remote

server, like with the ``ssh-*-id`` utilities.

Not related to pkey authentication."""

cdef c_pkey.LIBSSH2_PUBLICKEY *pkey_s

cdef Session session

def __cinit__(self, Session session):

self.pkey_s = NULL

self.session = session

def __dealloc__(self):

with nogil:

c_pkey.libssh2_publickey_shutdown(self.pkey_s)

def add(self, bytes name, bytes blob,

char overwrite,

list attrs):

cdef unsigned long name_len = len(name)

cdef unsigned long num_attrs = len(attrs)

cdef c_pkey.libssh2_publickey_attribute *_attrs = NULL

if num_attrs > 0:

_attrs = to_c_attr(attrs)

cdef const unsigned char *_name = name

cdef size_t blob_len = len(blob)

cdef const unsigned char *_blob = blob

with nogil:

rc = c_pkey.libssh2_publickey_add_ex(

self.pkey_s, _name, name_len, _blob,

blob_len, overwrite, num_attrs, _attrs)

if _attrs is not NULL:

free(_attrs)

return handle_error_codes(rc)

def remove(self, bytes name, bytes blob):

cdef unsigned long name_len = len(name)

cdef unsigned long blob_len = len(blob)

cdef const unsigned char *_name = name

cdef const unsigned char *_blob = blob

with nogil:

rc = c_pkey.libssh2_publickey_remove_ex(

self.pkey_s, _name, name_len, _blob, blob_len)

return handle_error_codes(rc)

def list_fetch(self):

cdef unsigned long num_keys = 0

cdef c_pkey.libssh2_publickey_list **pkey_list = NULL

cdef int rc

cdef list keys

with nogil:

rc = c_pkey.libssh2_publickey_list_fetch(

self.pkey_s, &num_keys, pkey_list)

if rc != 0:

return handle_error_codes(rc)

if num_keys < 1:

return []

keys = [PyPublicKeyList(pkey_list[i]) for i in range(num_keys)]

return keys

def list_free(self):

"""No-op - list_free called automatically by

:py:class:`ssh2.publickey.PublicKeyList` destructor"""

pass

def shutdown(self):

"""Shutdown public key subsystem.

Called automatically by object destructor"""

cdef int rc

with nogil:

rc = c_pkey.libssh2_publickey_shutdown(self.pkey_s)

return handle_error_codes(rc)