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timhawestimhawes
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Add methods to ssl.SSLContext for handling self-signed certs
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‎ports/espressif/common-hal/ssl/SSLContext.c

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Original file line numberDiff line numberDiff line change
@@ -29,6 +29,8 @@
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#include "bindings/espidf/__init__.h"
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#include "components/mbedtls/esp_crt_bundle/include/esp_crt_bundle.h"
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#include "py/runtime.h"
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void common_hal_ssl_sslcontext_construct(ssl_sslcontext_obj_t *self) {
@@ -62,3 +64,34 @@ ssl_sslsocket_obj_t *common_hal_ssl_sslcontext_wrap_socket(ssl_sslcontext_obj_t
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return sock;
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}
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void common_hal_ssl_sslcontext_load_verify_locations(ssl_sslcontext_obj_t *self,
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const char *cadata) {
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self->ssl_config.crt_bundle_attach = NULL;
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self->ssl_config.use_global_ca_store = false;
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self->ssl_config.cacert_buf = (const unsigned char *)cadata;
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self->ssl_config.cacert_bytes = strlen(cadata) + 1;
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}
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void common_hal_ssl_sslcontext_set_default_verify_paths(ssl_sslcontext_obj_t *self) {
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self->ssl_config.crt_bundle_attach = esp_crt_bundle_attach;
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self->ssl_config.use_global_ca_store = true;
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self->ssl_config.cacert_buf = NULL;
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self->ssl_config.cacert_bytes = 0;
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}
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bool common_hal_ssl_sslcontext_get_check_hostname(ssl_sslcontext_obj_t *self) {
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if (self->ssl_config.skip_common_name) {
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return 0;
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} else {
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return 1;
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}
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}
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void common_hal_ssl_sslcontext_set_check_hostname(ssl_sslcontext_obj_t *self, bool value) {
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if (value) {
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self->ssl_config.skip_common_name = 0;
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} else {
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self->ssl_config.skip_common_name = 1;
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}
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}

‎shared-bindings/ssl/SSLContext.c

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Original file line numberDiff line numberDiff line change
@@ -29,6 +29,7 @@
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#include "py/objtuple.h"
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#include "py/objlist.h"
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#include "py/objproperty.h"
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#include "py/runtime.h"
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#include "py/mperrno.h"
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@@ -51,6 +52,66 @@ STATIC mp_obj_t ssl_sslcontext_make_new(const mp_obj_type_t *type, size_t n_args
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return MP_OBJ_FROM_PTR(s);
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}
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//| def load_verify_locations(self, cadata: Optional[str] = None) -> None:
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//| """Load a set of certification authority (CA) certificates used to validate
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//| other peers' certificates."""
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//|
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STATIC mp_obj_t ssl_sslcontext_load_verify_locations(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_cadata };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_cadata, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
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};
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ssl_sslcontext_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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const char *cadata = mp_obj_str_get_str(args[ARG_cadata].u_obj);
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common_hal_ssl_sslcontext_load_verify_locations(self, cadata);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(ssl_sslcontext_load_verify_locations_obj, 1, ssl_sslcontext_load_verify_locations);
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//| def set_default_verify_paths(self) -> None:
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//| """Load a set of default certification authority (CA) certificates."""
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//|
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STATIC mp_obj_t ssl_sslcontext_set_default_verify_paths(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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ssl_sslcontext_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
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common_hal_ssl_sslcontext_set_default_verify_paths(self);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(ssl_sslcontext_set_default_verify_paths_obj, 1, ssl_sslcontext_set_default_verify_paths);
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//| check_hostname: bool
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//| """Whether to match the peer certificate's hostname."""
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//|
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STATIC mp_obj_t ssl_sslcontext_get_check_hostname(mp_obj_t self_in) {
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ssl_sslcontext_obj_t *self = MP_OBJ_TO_PTR(self_in);
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return mp_obj_new_bool(common_hal_ssl_sslcontext_get_check_hostname(self));
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(ssl_sslcontext_get_check_hostname_obj, ssl_sslcontext_get_check_hostname);
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STATIC mp_obj_t ssl_sslcontext_set_check_hostname(mp_obj_t self_in, mp_obj_t value) {
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ssl_sslcontext_obj_t *self = MP_OBJ_TO_PTR(self_in);
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common_hal_ssl_sslcontext_set_check_hostname(self, mp_obj_is_true(value));
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(ssl_sslcontext_set_check_hostname_obj, ssl_sslcontext_set_check_hostname);
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const mp_obj_property_t ssl_sslcontext_check_hostname_obj = {
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.base.type = &mp_type_property,
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.proxy = {(mp_obj_t)&ssl_sslcontext_get_check_hostname_obj,
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(mp_obj_t)&ssl_sslcontext_set_check_hostname_obj,
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MP_ROM_NONE},
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};
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//| def wrap_socket(self, sock: socketpool.Socket, *, server_side: bool = False, server_hostname: Optional[str] = None) -> ssl.SSLSocket:
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//| """Wraps the socket into a socket-compatible class that handles SSL negotiation.
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//| The socket must be of type SOCK_STREAM."""
@@ -85,6 +146,9 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_KW(ssl_sslcontext_wrap_socket_obj, 1, ssl_sslcont
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STATIC const mp_rom_map_elem_t ssl_sslcontext_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_wrap_socket), MP_ROM_PTR(&ssl_sslcontext_wrap_socket_obj) },
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{ MP_ROM_QSTR(MP_QSTR_load_verify_locations), MP_ROM_PTR(&ssl_sslcontext_load_verify_locations_obj) },
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{ MP_ROM_QSTR(MP_QSTR_set_default_verify_paths), MP_ROM_PTR(&ssl_sslcontext_set_default_verify_paths_obj) },
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{ MP_ROM_QSTR(MP_QSTR_check_hostname), MP_ROM_PTR(&ssl_sslcontext_check_hostname_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(ssl_sslcontext_locals_dict, ssl_sslcontext_locals_dict_table);

‎shared-bindings/ssl/SSLContext.h

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Original file line numberDiff line numberDiff line change
@@ -39,4 +39,12 @@ void common_hal_ssl_sslcontext_construct(ssl_sslcontext_obj_t *self);
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ssl_sslsocket_obj_t *common_hal_ssl_sslcontext_wrap_socket(ssl_sslcontext_obj_t *self,
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socketpool_socket_obj_t *sock, bool server_side, const char *server_hostname);
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void common_hal_ssl_sslcontext_load_verify_locations(ssl_sslcontext_obj_t *self,
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const char *cadata);
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void common_hal_ssl_sslcontext_set_default_verify_paths(ssl_sslcontext_obj_t *self);
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bool common_hal_ssl_sslcontext_get_check_hostname(ssl_sslcontext_obj_t *self);
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void common_hal_ssl_sslcontext_set_check_hostname(ssl_sslcontext_obj_t *self, bool value);
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#endif // MICROPY_INCLUDED_SHARED_BINDINGS_SSL_SSLCONTEXT_H

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