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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "channel_credentials.h"
#include "call_credentials.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <php.h>
#include <php_ini.h>
#include <ext/standard/info.h>
#include <ext/spl/spl_exceptions.h>
#include "php_grpc.h"
#include "call.h"
#include <zend_exceptions.h>
#include <zend_hash.h>
#include <grpc/grpc.h>
#include <grpc/grpc_security.h>
zend_class_entry *grpc_ce_call_credentials;
#if PHP_MAJOR_VERSION >= 7
static zend_object_handlers call_credentials_ce_handlers;
#endif
/* Frees and destroys an instance of wrapped_grpc_call_credentials */
PHP_GRPC_FREE_WRAPPED_FUNC_START(wrapped_grpc_call_credentials)
if (p->wrapped != NULL) {
grpc_call_credentials_release(p->wrapped);
}
PHP_GRPC_FREE_WRAPPED_FUNC_END()
/* Initializes an instance of wrapped_grpc_call_credentials to be
* associated with an object of a class specified by class_type */
php_grpc_zend_object create_wrapped_grpc_call_credentials(
zend_class_entry *class_type TSRMLS_DC) {
PHP_GRPC_ALLOC_CLASS_OBJECT(wrapped_grpc_call_credentials);
zend_object_std_init(&intern->std, class_type TSRMLS_CC);
object_properties_init(&intern->std, class_type);
PHP_GRPC_FREE_CLASS_OBJECT(wrapped_grpc_call_credentials,
call_credentials_ce_handlers);
}
zval *grpc_php_wrap_call_credentials(grpc_call_credentials
*wrapped TSRMLS_DC) {
zval *credentials_object;
PHP_GRPC_MAKE_STD_ZVAL(credentials_object);
object_init_ex(credentials_object, grpc_ce_call_credentials);
wrapped_grpc_call_credentials *credentials =
Z_WRAPPED_GRPC_CALL_CREDS_P(credentials_object);
credentials->wrapped = wrapped;
return credentials_object;
}
/**
* Create composite credentials from two existing credentials.
* @param CallCredentials $cred1_obj The first credential
* @param CallCredentials $cred2_obj The second credential
* @return CallCredentials The new composite credentials object
*/
PHP_METHOD(CallCredentials, createComposite) {
zval *cred1_obj;
zval *cred2_obj;
/* "OO" == 2 Objects */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "OO", &cred1_obj,
grpc_ce_call_credentials, &cred2_obj,
grpc_ce_call_credentials) == FAILURE) {
zend_throw_exception(spl_ce_InvalidArgumentException,
"createComposite expects 2 CallCredentials",
1 TSRMLS_CC);
return;
}
wrapped_grpc_call_credentials *cred1 =
Z_WRAPPED_GRPC_CALL_CREDS_P(cred1_obj);
wrapped_grpc_call_credentials *cred2 =
Z_WRAPPED_GRPC_CALL_CREDS_P(cred2_obj);
grpc_call_credentials *creds =
grpc_composite_call_credentials_create(cred1->wrapped, cred2->wrapped,
NULL);
zval *creds_object;
PHP_GRPC_MAKE_STD_ZVAL(creds_object);
creds_object = grpc_php_wrap_call_credentials(creds TSRMLS_CC);
RETURN_DESTROY_ZVAL(creds_object);
}
/**
* Create a call credentials object from the plugin API
* @param function $fci The callback function
* @return CallCredentials The new call credentials object
*/
PHP_METHOD(CallCredentials, createFromPlugin) {
zend_fcall_info *fci;
zend_fcall_info_cache *fci_cache;
fci = (zend_fcall_info *)emalloc(sizeof(zend_fcall_info));
fci_cache = (zend_fcall_info_cache *)emalloc(sizeof(zend_fcall_info_cache));
memset(fci, 0, sizeof(zend_fcall_info));
memset(fci_cache, 0, sizeof(zend_fcall_info_cache));
/* "f" == 1 function */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "f*", fci, fci_cache,
fci->params, fci->param_count) == FAILURE) {
zend_throw_exception(spl_ce_InvalidArgumentException,
"createFromPlugin expects 1 callback", 1 TSRMLS_CC);
return;
}
plugin_state *state;
state = (plugin_state *)emalloc(sizeof(plugin_state));
memset(state, 0, sizeof(plugin_state));
/* save the user provided PHP callback function */
state->fci = fci;
state->fci_cache = fci_cache;
grpc_metadata_credentials_plugin plugin;
plugin.get_metadata = plugin_get_metadata;
plugin.destroy = plugin_destroy_state;
plugin.state = (void *)state;
plugin.type = "";
grpc_call_credentials *creds =
grpc_metadata_credentials_create_from_plugin(plugin, NULL);
zval *creds_object;
PHP_GRPC_MAKE_STD_ZVAL(creds_object);
creds_object = grpc_php_wrap_call_credentials(creds TSRMLS_CC);
RETURN_DESTROY_ZVAL(creds_object);
}
/* Callback function for plugin creds API */
void plugin_get_metadata(void *ptr, grpc_auth_metadata_context context,
grpc_credentials_plugin_metadata_cb cb,
void *user_data) {
TSRMLS_FETCH();
plugin_state *state = (plugin_state *)ptr;
/* prepare to call the user callback function with info from the
* grpc_auth_metadata_context */
zval *arg;
PHP_GRPC_MAKE_STD_ZVAL(arg);
object_init(arg);
php_grpc_add_property_string(arg, "service_url", context.service_url, true);
php_grpc_add_property_string(arg, "method_name", context.method_name, true);
zval *retval;
PHP_GRPC_MAKE_STD_ZVAL(retval);
#if PHP_MAJOR_VERSION < 7
zval **params[1];
params[0] = &arg;
state->fci->params = params;
state->fci->retval_ptr_ptr = &retval;
#else
state->fci->params = arg;
state->fci->retval = retval;
#endif
state->fci->param_count = 1;
/* call the user callback function */
zend_call_function(state->fci, state->fci_cache TSRMLS_CC);
grpc_status_code code = GRPC_STATUS_OK;
grpc_metadata_array metadata;
if (Z_TYPE_P(retval) != IS_ARRAY) {
code = GRPC_STATUS_INVALID_ARGUMENT;
} else if (!create_metadata_array(retval, &metadata)) {
grpc_metadata_array_destroy(&metadata);
code = GRPC_STATUS_INVALID_ARGUMENT;
}
/* Pass control back to core */
cb(user_data, metadata.metadata, metadata.count, code, NULL);
}
/* Cleanup function for plugin creds API */
void plugin_destroy_state(void *ptr) {
plugin_state *state = (plugin_state *)ptr;
efree(state->fci);
efree(state->fci_cache);
efree(state);
}
static zend_function_entry call_credentials_methods[] = {
PHP_ME(CallCredentials, createComposite, NULL,
ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
PHP_ME(CallCredentials, createFromPlugin, NULL,
ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
PHP_FE_END
};
void grpc_init_call_credentials(TSRMLS_D) {
zend_class_entry ce;
INIT_CLASS_ENTRY(ce, "Grpc\\CallCredentials", call_credentials_methods);
ce.create_object = create_wrapped_grpc_call_credentials;
grpc_ce_call_credentials = zend_register_internal_class(&ce TSRMLS_CC);
PHP_GRPC_INIT_HANDLER(wrapped_grpc_call_credentials,
call_credentials_ce_handlers);
}
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