diff options
Diffstat (limited to 'src/core/lib/security/credentials/oauth2/oauth2_credentials.cc')
| -rw-r--r-- | src/core/lib/security/credentials/oauth2/oauth2_credentials.cc | 279 |
1 files changed, 130 insertions, 149 deletions
diff --git a/src/core/lib/security/credentials/oauth2/oauth2_credentials.cc b/src/core/lib/security/credentials/oauth2/oauth2_credentials.cc index 44b093557f..ad63b01e75 100644 --- a/src/core/lib/security/credentials/oauth2/oauth2_credentials.cc +++ b/src/core/lib/security/credentials/oauth2/oauth2_credentials.cc @@ -22,6 +22,7 @@ #include <string.h> +#include "src/core/lib/gprpp/ref_counted_ptr.h" #include "src/core/lib/security/util/json_util.h" #include "src/core/lib/surface/api_trace.h" @@ -105,13 +106,12 @@ void grpc_auth_refresh_token_destruct(grpc_auth_refresh_token* refresh_token) { // Oauth2 Token Fetcher credentials. // -static void oauth2_token_fetcher_destruct(grpc_call_credentials* creds) { - grpc_oauth2_token_fetcher_credentials* c = - reinterpret_cast<grpc_oauth2_token_fetcher_credentials*>(creds); - GRPC_MDELEM_UNREF(c->access_token_md); - gpr_mu_destroy(&c->mu); - grpc_pollset_set_destroy(grpc_polling_entity_pollset_set(&c->pollent)); - grpc_httpcli_context_destroy(&c->httpcli_context); +grpc_oauth2_token_fetcher_credentials:: + ~grpc_oauth2_token_fetcher_credentials() { + GRPC_MDELEM_UNREF(access_token_md_); + gpr_mu_destroy(&mu_); + grpc_pollset_set_destroy(grpc_polling_entity_pollset_set(&pollent_)); + grpc_httpcli_context_destroy(&httpcli_context_); } grpc_credentials_status @@ -209,25 +209,29 @@ static void on_oauth2_token_fetcher_http_response(void* user_data, grpc_credentials_metadata_request* r = static_cast<grpc_credentials_metadata_request*>(user_data); grpc_oauth2_token_fetcher_credentials* c = - reinterpret_cast<grpc_oauth2_token_fetcher_credentials*>(r->creds); + reinterpret_cast<grpc_oauth2_token_fetcher_credentials*>(r->creds.get()); + c->on_http_response(r, error); +} + +void grpc_oauth2_token_fetcher_credentials::on_http_response( + grpc_credentials_metadata_request* r, grpc_error* error) { grpc_mdelem access_token_md = GRPC_MDNULL; grpc_millis token_lifetime; grpc_credentials_status status = grpc_oauth2_token_fetcher_credentials_parse_server_response( &r->response, &access_token_md, &token_lifetime); // Update cache and grab list of pending requests. - gpr_mu_lock(&c->mu); - c->token_fetch_pending = false; - c->access_token_md = GRPC_MDELEM_REF(access_token_md); - c->token_expiration = + gpr_mu_lock(&mu_); + token_fetch_pending_ = false; + access_token_md_ = GRPC_MDELEM_REF(access_token_md); + token_expiration_ = status == GRPC_CREDENTIALS_OK ? gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), gpr_time_from_millis(token_lifetime, GPR_TIMESPAN)) : gpr_inf_past(GPR_CLOCK_MONOTONIC); - grpc_oauth2_pending_get_request_metadata* pending_request = - c->pending_requests; - c->pending_requests = nullptr; - gpr_mu_unlock(&c->mu); + grpc_oauth2_pending_get_request_metadata* pending_request = pending_requests_; + pending_requests_ = nullptr; + gpr_mu_unlock(&mu_); // Invoke callbacks for all pending requests. while (pending_request != nullptr) { if (status == GRPC_CREDENTIALS_OK) { @@ -239,42 +243,40 @@ static void on_oauth2_token_fetcher_http_response(void* user_data, } GRPC_CLOSURE_SCHED(pending_request->on_request_metadata, error); grpc_polling_entity_del_from_pollset_set( - pending_request->pollent, grpc_polling_entity_pollset_set(&c->pollent)); + pending_request->pollent, grpc_polling_entity_pollset_set(&pollent_)); grpc_oauth2_pending_get_request_metadata* prev = pending_request; pending_request = pending_request->next; gpr_free(prev); } GRPC_MDELEM_UNREF(access_token_md); - grpc_call_credentials_unref(r->creds); + Unref(); grpc_credentials_metadata_request_destroy(r); } -static bool oauth2_token_fetcher_get_request_metadata( - 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) { - grpc_oauth2_token_fetcher_credentials* c = - reinterpret_cast<grpc_oauth2_token_fetcher_credentials*>(creds); +bool grpc_oauth2_token_fetcher_credentials::get_request_metadata( + grpc_polling_entity* pollent, grpc_auth_metadata_context context, + grpc_credentials_mdelem_array* md_array, grpc_closure* on_request_metadata, + grpc_error** error) { // Check if we can use the cached token. grpc_millis refresh_threshold = GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS * GPR_MS_PER_SEC; grpc_mdelem cached_access_token_md = GRPC_MDNULL; - gpr_mu_lock(&c->mu); - if (!GRPC_MDISNULL(c->access_token_md) && + gpr_mu_lock(&mu_); + if (!GRPC_MDISNULL(access_token_md_) && gpr_time_cmp( - gpr_time_sub(c->token_expiration, gpr_now(GPR_CLOCK_MONOTONIC)), + gpr_time_sub(token_expiration_, gpr_now(GPR_CLOCK_MONOTONIC)), gpr_time_from_seconds(GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS, GPR_TIMESPAN)) > 0) { - cached_access_token_md = GRPC_MDELEM_REF(c->access_token_md); + cached_access_token_md = GRPC_MDELEM_REF(access_token_md_); } if (!GRPC_MDISNULL(cached_access_token_md)) { - gpr_mu_unlock(&c->mu); + gpr_mu_unlock(&mu_); grpc_credentials_mdelem_array_add(md_array, cached_access_token_md); GRPC_MDELEM_UNREF(cached_access_token_md); return true; } // Couldn't get the token from the cache. - // Add request to c->pending_requests and start a new fetch if needed. + // Add request to pending_requests_ and start a new fetch if needed. grpc_oauth2_pending_get_request_metadata* pending_request = static_cast<grpc_oauth2_pending_get_request_metadata*>( gpr_malloc(sizeof(*pending_request))); @@ -282,41 +284,37 @@ static bool oauth2_token_fetcher_get_request_metadata( pending_request->on_request_metadata = on_request_metadata; pending_request->pollent = pollent; grpc_polling_entity_add_to_pollset_set( - pollent, grpc_polling_entity_pollset_set(&c->pollent)); - pending_request->next = c->pending_requests; - c->pending_requests = pending_request; + pollent, grpc_polling_entity_pollset_set(&pollent_)); + pending_request->next = pending_requests_; + pending_requests_ = pending_request; bool start_fetch = false; - if (!c->token_fetch_pending) { - c->token_fetch_pending = true; + if (!token_fetch_pending_) { + token_fetch_pending_ = true; start_fetch = true; } - gpr_mu_unlock(&c->mu); + gpr_mu_unlock(&mu_); if (start_fetch) { - grpc_call_credentials_ref(creds); - c->fetch_func(grpc_credentials_metadata_request_create(creds), - &c->httpcli_context, &c->pollent, - on_oauth2_token_fetcher_http_response, - grpc_core::ExecCtx::Get()->Now() + refresh_threshold); + Ref().release(); + fetch_oauth2(grpc_credentials_metadata_request_create(this->Ref()), + &httpcli_context_, &pollent_, + on_oauth2_token_fetcher_http_response, + grpc_core::ExecCtx::Get()->Now() + refresh_threshold); } return false; } -static void oauth2_token_fetcher_cancel_get_request_metadata( - grpc_call_credentials* creds, grpc_credentials_mdelem_array* md_array, - grpc_error* error) { - grpc_oauth2_token_fetcher_credentials* c = - reinterpret_cast<grpc_oauth2_token_fetcher_credentials*>(creds); - gpr_mu_lock(&c->mu); +void grpc_oauth2_token_fetcher_credentials::cancel_get_request_metadata( + grpc_credentials_mdelem_array* md_array, grpc_error* error) { + gpr_mu_lock(&mu_); grpc_oauth2_pending_get_request_metadata* prev = nullptr; - grpc_oauth2_pending_get_request_metadata* pending_request = - c->pending_requests; + grpc_oauth2_pending_get_request_metadata* pending_request = pending_requests_; while (pending_request != nullptr) { if (pending_request->md_array == md_array) { // Remove matching pending request from the list. if (prev != nullptr) { prev->next = pending_request->next; } else { - c->pending_requests = pending_request->next; + pending_requests_ = pending_request->next; } // Invoke the callback immediately with an error. GRPC_CLOSURE_SCHED(pending_request->on_request_metadata, @@ -327,96 +325,89 @@ static void oauth2_token_fetcher_cancel_get_request_metadata( prev = pending_request; pending_request = pending_request->next; } - gpr_mu_unlock(&c->mu); + gpr_mu_unlock(&mu_); GRPC_ERROR_UNREF(error); } -static void init_oauth2_token_fetcher(grpc_oauth2_token_fetcher_credentials* c, - grpc_fetch_oauth2_func fetch_func) { - memset(c, 0, sizeof(grpc_oauth2_token_fetcher_credentials)); - c->base.type = GRPC_CALL_CREDENTIALS_TYPE_OAUTH2; - gpr_ref_init(&c->base.refcount, 1); - gpr_mu_init(&c->mu); - c->token_expiration = gpr_inf_past(GPR_CLOCK_MONOTONIC); - c->fetch_func = fetch_func; - c->pollent = - grpc_polling_entity_create_from_pollset_set(grpc_pollset_set_create()); - grpc_httpcli_context_init(&c->httpcli_context); +grpc_oauth2_token_fetcher_credentials::grpc_oauth2_token_fetcher_credentials() + : grpc_call_credentials(GRPC_CALL_CREDENTIALS_TYPE_OAUTH2), + token_expiration_(gpr_inf_past(GPR_CLOCK_MONOTONIC)), + pollent_(grpc_polling_entity_create_from_pollset_set( + grpc_pollset_set_create())) { + gpr_mu_init(&mu_); + grpc_httpcli_context_init(&httpcli_context_); } // // Google Compute Engine credentials. // -static grpc_call_credentials_vtable compute_engine_vtable = { - oauth2_token_fetcher_destruct, oauth2_token_fetcher_get_request_metadata, - oauth2_token_fetcher_cancel_get_request_metadata}; +namespace { + +class grpc_compute_engine_token_fetcher_credentials + : public grpc_oauth2_token_fetcher_credentials { + public: + grpc_compute_engine_token_fetcher_credentials() = default; + ~grpc_compute_engine_token_fetcher_credentials() override = default; + + protected: + void fetch_oauth2(grpc_credentials_metadata_request* metadata_req, + grpc_httpcli_context* http_context, + grpc_polling_entity* pollent, + grpc_iomgr_cb_func response_cb, + grpc_millis deadline) override { + grpc_http_header header = {(char*)"Metadata-Flavor", (char*)"Google"}; + grpc_httpcli_request request; + memset(&request, 0, sizeof(grpc_httpcli_request)); + request.host = (char*)GRPC_COMPUTE_ENGINE_METADATA_HOST; + request.http.path = (char*)GRPC_COMPUTE_ENGINE_METADATA_TOKEN_PATH; + request.http.hdr_count = 1; + request.http.hdrs = &header; + /* TODO(ctiller): Carry the resource_quota in ctx and share it with the host + channel. This would allow us to cancel an authentication query when under + extreme memory pressure. */ + grpc_resource_quota* resource_quota = + grpc_resource_quota_create("oauth2_credentials"); + grpc_httpcli_get(http_context, pollent, resource_quota, &request, deadline, + GRPC_CLOSURE_CREATE(response_cb, metadata_req, + grpc_schedule_on_exec_ctx), + &metadata_req->response); + grpc_resource_quota_unref_internal(resource_quota); + } +}; -static void compute_engine_fetch_oauth2( - grpc_credentials_metadata_request* metadata_req, - grpc_httpcli_context* httpcli_context, grpc_polling_entity* pollent, - grpc_iomgr_cb_func response_cb, grpc_millis deadline) { - grpc_http_header header = {(char*)"Metadata-Flavor", (char*)"Google"}; - grpc_httpcli_request request; - memset(&request, 0, sizeof(grpc_httpcli_request)); - request.host = (char*)GRPC_COMPUTE_ENGINE_METADATA_HOST; - request.http.path = (char*)GRPC_COMPUTE_ENGINE_METADATA_TOKEN_PATH; - request.http.hdr_count = 1; - request.http.hdrs = &header; - /* TODO(ctiller): Carry the resource_quota in ctx and share it with the host - channel. This would allow us to cancel an authentication query when under - extreme memory pressure. */ - grpc_resource_quota* resource_quota = - grpc_resource_quota_create("oauth2_credentials"); - grpc_httpcli_get( - httpcli_context, pollent, resource_quota, &request, deadline, - GRPC_CLOSURE_CREATE(response_cb, metadata_req, grpc_schedule_on_exec_ctx), - &metadata_req->response); - grpc_resource_quota_unref_internal(resource_quota); -} +} // namespace grpc_call_credentials* grpc_google_compute_engine_credentials_create( void* reserved) { - grpc_oauth2_token_fetcher_credentials* c = - static_cast<grpc_oauth2_token_fetcher_credentials*>( - gpr_malloc(sizeof(grpc_oauth2_token_fetcher_credentials))); GRPC_API_TRACE("grpc_compute_engine_credentials_create(reserved=%p)", 1, (reserved)); GPR_ASSERT(reserved == nullptr); - init_oauth2_token_fetcher(c, compute_engine_fetch_oauth2); - c->base.vtable = &compute_engine_vtable; - return &c->base; + return grpc_core::MakeRefCounted< + grpc_compute_engine_token_fetcher_credentials>() + .release(); } // // Google Refresh Token credentials. // -static void refresh_token_destruct(grpc_call_credentials* creds) { - grpc_google_refresh_token_credentials* c = - reinterpret_cast<grpc_google_refresh_token_credentials*>(creds); - grpc_auth_refresh_token_destruct(&c->refresh_token); - oauth2_token_fetcher_destruct(&c->base.base); +grpc_google_refresh_token_credentials:: + ~grpc_google_refresh_token_credentials() { + grpc_auth_refresh_token_destruct(&refresh_token_); } -static grpc_call_credentials_vtable refresh_token_vtable = { - refresh_token_destruct, oauth2_token_fetcher_get_request_metadata, - oauth2_token_fetcher_cancel_get_request_metadata}; - -static void refresh_token_fetch_oauth2( +void grpc_google_refresh_token_credentials::fetch_oauth2( grpc_credentials_metadata_request* metadata_req, grpc_httpcli_context* httpcli_context, grpc_polling_entity* pollent, grpc_iomgr_cb_func response_cb, grpc_millis deadline) { - grpc_google_refresh_token_credentials* c = - reinterpret_cast<grpc_google_refresh_token_credentials*>( - metadata_req->creds); grpc_http_header header = {(char*)"Content-Type", (char*)"application/x-www-form-urlencoded"}; grpc_httpcli_request request; char* body = nullptr; gpr_asprintf(&body, GRPC_REFRESH_TOKEN_POST_BODY_FORMAT_STRING, - c->refresh_token.client_id, c->refresh_token.client_secret, - c->refresh_token.refresh_token); + refresh_token_.client_id, refresh_token_.client_secret, + refresh_token_.refresh_token); memset(&request, 0, sizeof(grpc_httpcli_request)); request.host = (char*)GRPC_GOOGLE_OAUTH2_SERVICE_HOST; request.http.path = (char*)GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH; @@ -437,20 +428,19 @@ static void refresh_token_fetch_oauth2( gpr_free(body); } -grpc_call_credentials* +grpc_google_refresh_token_credentials::grpc_google_refresh_token_credentials( + grpc_auth_refresh_token refresh_token) + : refresh_token_(refresh_token) {} + +grpc_core::RefCountedPtr<grpc_call_credentials> grpc_refresh_token_credentials_create_from_auth_refresh_token( grpc_auth_refresh_token refresh_token) { - grpc_google_refresh_token_credentials* c; if (!grpc_auth_refresh_token_is_valid(&refresh_token)) { gpr_log(GPR_ERROR, "Invalid input for refresh token credentials creation"); return nullptr; } - c = static_cast<grpc_google_refresh_token_credentials*>( - gpr_zalloc(sizeof(grpc_google_refresh_token_credentials))); - init_oauth2_token_fetcher(&c->base, refresh_token_fetch_oauth2); - c->base.base.vtable = &refresh_token_vtable; - c->refresh_token = refresh_token; - return &c->base.base; + return grpc_core::MakeRefCounted<grpc_google_refresh_token_credentials>( + refresh_token); } static char* create_loggable_refresh_token(grpc_auth_refresh_token* token) { @@ -478,59 +468,50 @@ grpc_call_credentials* grpc_google_refresh_token_credentials_create( gpr_free(loggable_token); } GPR_ASSERT(reserved == nullptr); - return grpc_refresh_token_credentials_create_from_auth_refresh_token(token); + return grpc_refresh_token_credentials_create_from_auth_refresh_token(token) + .release(); } // // Oauth2 Access Token credentials. // -static void access_token_destruct(grpc_call_credentials* creds) { - grpc_access_token_credentials* c = - reinterpret_cast<grpc_access_token_credentials*>(creds); - GRPC_MDELEM_UNREF(c->access_token_md); +grpc_access_token_credentials::~grpc_access_token_credentials() { + GRPC_MDELEM_UNREF(access_token_md_); } -static bool access_token_get_request_metadata( - 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) { - grpc_access_token_credentials* c = - reinterpret_cast<grpc_access_token_credentials*>(creds); - grpc_credentials_mdelem_array_add(md_array, c->access_token_md); +bool grpc_access_token_credentials::get_request_metadata( + grpc_polling_entity* pollent, grpc_auth_metadata_context context, + grpc_credentials_mdelem_array* md_array, grpc_closure* on_request_metadata, + grpc_error** error) { + grpc_credentials_mdelem_array_add(md_array, access_token_md_); return true; } -static void access_token_cancel_get_request_metadata( - grpc_call_credentials* c, grpc_credentials_mdelem_array* md_array, - grpc_error* error) { +void grpc_access_token_credentials::cancel_get_request_metadata( + grpc_credentials_mdelem_array* md_array, grpc_error* error) { GRPC_ERROR_UNREF(error); } -static grpc_call_credentials_vtable access_token_vtable = { - access_token_destruct, access_token_get_request_metadata, - access_token_cancel_get_request_metadata}; +grpc_access_token_credentials::grpc_access_token_credentials( + const char* access_token) + : grpc_call_credentials(GRPC_CALL_CREDENTIALS_TYPE_OAUTH2) { + char* token_md_value; + gpr_asprintf(&token_md_value, "Bearer %s", access_token); + grpc_core::ExecCtx exec_ctx; + access_token_md_ = grpc_mdelem_from_slices( + grpc_slice_from_static_string(GRPC_AUTHORIZATION_METADATA_KEY), + grpc_slice_from_copied_string(token_md_value)); + gpr_free(token_md_value); +} grpc_call_credentials* grpc_access_token_credentials_create( const char* access_token, void* reserved) { - grpc_access_token_credentials* c = - static_cast<grpc_access_token_credentials*>( - gpr_zalloc(sizeof(grpc_access_token_credentials))); GRPC_API_TRACE( "grpc_access_token_credentials_create(access_token=<redacted>, " "reserved=%p)", 1, (reserved)); GPR_ASSERT(reserved == nullptr); - c->base.type = GRPC_CALL_CREDENTIALS_TYPE_OAUTH2; - c->base.vtable = &access_token_vtable; - gpr_ref_init(&c->base.refcount, 1); - char* token_md_value; - gpr_asprintf(&token_md_value, "Bearer %s", access_token); - grpc_core::ExecCtx exec_ctx; - c->access_token_md = grpc_mdelem_from_slices( - grpc_slice_from_static_string(GRPC_AUTHORIZATION_METADATA_KEY), - grpc_slice_from_copied_string(token_md_value)); - - gpr_free(token_md_value); - return &c->base; + return grpc_core::MakeRefCounted<grpc_access_token_credentials>(access_token) + .release(); } |