| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #include "src/core/lib/security/credentials/credentials.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "src/core/lib/channel/channel_args.h" |
| #include "src/core/lib/http/httpcli.h" |
| #include "src/core/lib/http/parser.h" |
| #include "src/core/lib/iomgr/executor.h" |
| #include "src/core/lib/json/json.h" |
| #include "src/core/lib/support/string.h" |
| #include "src/core/lib/surface/api_trace.h" |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/string_util.h> |
| #include <grpc/support/sync.h> |
| #include <grpc/support/time.h> |
| |
| /* -- Common. -- */ |
| |
| grpc_credentials_metadata_request *grpc_credentials_metadata_request_create( |
| grpc_call_credentials *creds) { |
| grpc_credentials_metadata_request *r = |
| gpr_zalloc(sizeof(grpc_credentials_metadata_request)); |
| r->creds = grpc_call_credentials_ref(creds); |
| return r; |
| } |
| |
| void grpc_credentials_metadata_request_destroy( |
| grpc_exec_ctx *exec_ctx, grpc_credentials_metadata_request *r) { |
| grpc_call_credentials_unref(exec_ctx, r->creds); |
| grpc_http_response_destroy(&r->response); |
| gpr_free(r); |
| } |
| |
| grpc_channel_credentials *grpc_channel_credentials_ref( |
| grpc_channel_credentials *creds) { |
| if (creds == NULL) return NULL; |
| gpr_ref(&creds->refcount); |
| return creds; |
| } |
| |
| void grpc_channel_credentials_unref(grpc_exec_ctx *exec_ctx, |
| grpc_channel_credentials *creds) { |
| if (creds == NULL) return; |
| if (gpr_unref(&creds->refcount)) { |
| if (creds->vtable->destruct != NULL) { |
| creds->vtable->destruct(exec_ctx, creds); |
| } |
| gpr_free(creds); |
| } |
| } |
| |
| void grpc_channel_credentials_release(grpc_channel_credentials *creds) { |
| GRPC_API_TRACE("grpc_channel_credentials_release(creds=%p)", 1, (creds)); |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_channel_credentials_unref(&exec_ctx, creds); |
| grpc_exec_ctx_finish(&exec_ctx); |
| } |
| |
| grpc_call_credentials *grpc_call_credentials_ref(grpc_call_credentials *creds) { |
| if (creds == NULL) return NULL; |
| gpr_ref(&creds->refcount); |
| return creds; |
| } |
| |
| void grpc_call_credentials_unref(grpc_exec_ctx *exec_ctx, |
| grpc_call_credentials *creds) { |
| if (creds == NULL) return; |
| if (gpr_unref(&creds->refcount)) { |
| if (creds->vtable->destruct != NULL) { |
| creds->vtable->destruct(exec_ctx, creds); |
| } |
| gpr_free(creds); |
| } |
| } |
| |
| void grpc_call_credentials_release(grpc_call_credentials *creds) { |
| GRPC_API_TRACE("grpc_call_credentials_release(creds=%p)", 1, (creds)); |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_call_credentials_unref(&exec_ctx, creds); |
| grpc_exec_ctx_finish(&exec_ctx); |
| } |
| |
| bool grpc_call_credentials_get_request_metadata( |
| grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, |
| grpc_polling_entity *pollent, grpc_auth_metadata_context context, |
| grpc_credentials_mdelem_array *md_array, grpc_closure *on_request_metadata, |
| grpc_error **error) { |
| if (creds == NULL || creds->vtable->get_request_metadata == NULL) { |
| return true; |
| } |
| return creds->vtable->get_request_metadata( |
| exec_ctx, creds, pollent, context, md_array, on_request_metadata, error); |
| } |
| |
| void grpc_call_credentials_cancel_get_request_metadata( |
| grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, |
| grpc_credentials_mdelem_array *md_array, grpc_error *error) { |
| if (creds == NULL || creds->vtable->cancel_get_request_metadata == NULL) { |
| return; |
| } |
| creds->vtable->cancel_get_request_metadata(exec_ctx, creds, md_array, error); |
| } |
| |
| grpc_security_status grpc_channel_credentials_create_security_connector( |
| grpc_exec_ctx *exec_ctx, grpc_channel_credentials *channel_creds, |
| const char *target, const grpc_channel_args *args, |
| grpc_channel_security_connector **sc, grpc_channel_args **new_args) { |
| *new_args = NULL; |
| if (channel_creds == NULL) { |
| return GRPC_SECURITY_ERROR; |
| } |
| GPR_ASSERT(channel_creds->vtable->create_security_connector != NULL); |
| return channel_creds->vtable->create_security_connector( |
| exec_ctx, channel_creds, NULL, target, args, sc, new_args); |
| } |
| |
| grpc_channel_credentials * |
| grpc_channel_credentials_duplicate_without_call_credentials( |
| grpc_channel_credentials *channel_creds) { |
| if (channel_creds != NULL && channel_creds->vtable != NULL && |
| channel_creds->vtable->duplicate_without_call_credentials != NULL) { |
| return channel_creds->vtable->duplicate_without_call_credentials( |
| channel_creds); |
| } else { |
| return grpc_channel_credentials_ref(channel_creds); |
| } |
| } |
| |
| static void credentials_pointer_arg_destroy(grpc_exec_ctx *exec_ctx, void *p) { |
| grpc_channel_credentials_unref(exec_ctx, p); |
| } |
| |
| static void *credentials_pointer_arg_copy(void *p) { |
| return grpc_channel_credentials_ref(p); |
| } |
| |
| static int credentials_pointer_cmp(void *a, void *b) { return GPR_ICMP(a, b); } |
| |
| static const grpc_arg_pointer_vtable credentials_pointer_vtable = { |
| credentials_pointer_arg_copy, credentials_pointer_arg_destroy, |
| credentials_pointer_cmp}; |
| |
| grpc_arg grpc_channel_credentials_to_arg( |
| grpc_channel_credentials *credentials) { |
| return grpc_channel_arg_pointer_create( |
| GRPC_ARG_CHANNEL_CREDENTIALS, credentials, &credentials_pointer_vtable); |
| } |
| |
| grpc_channel_credentials *grpc_channel_credentials_from_arg( |
| const grpc_arg *arg) { |
| if (strcmp(arg->key, GRPC_ARG_CHANNEL_CREDENTIALS)) return NULL; |
| if (arg->type != GRPC_ARG_POINTER) { |
| gpr_log(GPR_ERROR, "Invalid type %d for arg %s", arg->type, |
| GRPC_ARG_CHANNEL_CREDENTIALS); |
| return NULL; |
| } |
| return arg->value.pointer.p; |
| } |
| |
| grpc_channel_credentials *grpc_channel_credentials_find_in_args( |
| const grpc_channel_args *args) { |
| size_t i; |
| if (args == NULL) return NULL; |
| for (i = 0; i < args->num_args; i++) { |
| grpc_channel_credentials *credentials = |
| grpc_channel_credentials_from_arg(&args->args[i]); |
| if (credentials != NULL) return credentials; |
| } |
| return NULL; |
| } |
| |
| grpc_server_credentials *grpc_server_credentials_ref( |
| grpc_server_credentials *creds) { |
| if (creds == NULL) return NULL; |
| gpr_ref(&creds->refcount); |
| return creds; |
| } |
| |
| void grpc_server_credentials_unref(grpc_exec_ctx *exec_ctx, |
| grpc_server_credentials *creds) { |
| if (creds == NULL) return; |
| if (gpr_unref(&creds->refcount)) { |
| if (creds->vtable->destruct != NULL) { |
| creds->vtable->destruct(exec_ctx, creds); |
| } |
| if (creds->processor.destroy != NULL && creds->processor.state != NULL) { |
| creds->processor.destroy(creds->processor.state); |
| } |
| gpr_free(creds); |
| } |
| } |
| |
| void grpc_server_credentials_release(grpc_server_credentials *creds) { |
| GRPC_API_TRACE("grpc_server_credentials_release(creds=%p)", 1, (creds)); |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_server_credentials_unref(&exec_ctx, creds); |
| grpc_exec_ctx_finish(&exec_ctx); |
| } |
| |
| grpc_security_status grpc_server_credentials_create_security_connector( |
| grpc_exec_ctx *exec_ctx, grpc_server_credentials *creds, |
| grpc_server_security_connector **sc) { |
| if (creds == NULL || creds->vtable->create_security_connector == NULL) { |
| gpr_log(GPR_ERROR, "Server credentials cannot create security context."); |
| return GRPC_SECURITY_ERROR; |
| } |
| return creds->vtable->create_security_connector(exec_ctx, creds, sc); |
| } |
| |
| void grpc_server_credentials_set_auth_metadata_processor( |
| grpc_server_credentials *creds, grpc_auth_metadata_processor processor) { |
| GRPC_API_TRACE( |
| "grpc_server_credentials_set_auth_metadata_processor(" |
| "creds=%p, " |
| "processor=grpc_auth_metadata_processor { process: %p, state: %p })", |
| 3, (creds, (void *)(intptr_t)processor.process, processor.state)); |
| if (creds == NULL) return; |
| if (creds->processor.destroy != NULL && creds->processor.state != NULL) { |
| creds->processor.destroy(creds->processor.state); |
| } |
| creds->processor = processor; |
| } |
| |
| static void server_credentials_pointer_arg_destroy(grpc_exec_ctx *exec_ctx, |
| void *p) { |
| grpc_server_credentials_unref(exec_ctx, p); |
| } |
| |
| static void *server_credentials_pointer_arg_copy(void *p) { |
| return grpc_server_credentials_ref(p); |
| } |
| |
| static int server_credentials_pointer_cmp(void *a, void *b) { |
| return GPR_ICMP(a, b); |
| } |
| |
| static const grpc_arg_pointer_vtable cred_ptr_vtable = { |
| server_credentials_pointer_arg_copy, server_credentials_pointer_arg_destroy, |
| server_credentials_pointer_cmp}; |
| |
| grpc_arg grpc_server_credentials_to_arg(grpc_server_credentials *p) { |
| return grpc_channel_arg_pointer_create(GRPC_SERVER_CREDENTIALS_ARG, p, |
| &cred_ptr_vtable); |
| } |
| |
| grpc_server_credentials *grpc_server_credentials_from_arg(const grpc_arg *arg) { |
| if (strcmp(arg->key, GRPC_SERVER_CREDENTIALS_ARG) != 0) return NULL; |
| if (arg->type != GRPC_ARG_POINTER) { |
| gpr_log(GPR_ERROR, "Invalid type %d for arg %s", arg->type, |
| GRPC_SERVER_CREDENTIALS_ARG); |
| return NULL; |
| } |
| return arg->value.pointer.p; |
| } |
| |
| grpc_server_credentials *grpc_find_server_credentials_in_args( |
| const grpc_channel_args *args) { |
| size_t i; |
| if (args == NULL) return NULL; |
| for (i = 0; i < args->num_args; i++) { |
| grpc_server_credentials *p = |
| grpc_server_credentials_from_arg(&args->args[i]); |
| if (p != NULL) return p; |
| } |
| return NULL; |
| } |