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path: root/src/php/ext/grpc/server_credentials.c
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#include "server_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 "zend_exceptions.h"
#include "zend_hash.h"

#include "grpc/grpc.h"
#include "grpc/grpc_security.h"

/* Frees and destroys an instace of wrapped_grpc_server_credentials */
void free_wrapped_grpc_server_credentials(void *object TSRMLS_DC){
  wrapped_grpc_server_credentials *creds =
      (wrapped_grpc_server_credentials*)object;
  if(creds->wrapped != NULL) {
    grpc_server_credentials_release(creds->wrapped);
  }
  efree(creds);
}

/* Initializes an instace of wrapped_grpc_server_credentials to be associated
 * with an object of a class specified by class_type */
zend_object_value create_wrapped_grpc_server_credentials(
    zend_class_entry *class_type TSRMLS_DC){
  zend_object_value retval;
  wrapped_grpc_server_credentials *intern;

  intern = (wrapped_grpc_server_credentials*)emalloc(sizeof(
      wrapped_grpc_server_credentials));
  memset(intern, 0, sizeof(wrapped_grpc_server_credentials));

  zend_object_std_init(&intern->std, class_type TSRMLS_CC);
  object_properties_init(&intern->std, class_type);
  retval.handle = zend_objects_store_put(
      intern,
      (zend_objects_store_dtor_t) zend_objects_destroy_object,
      free_wrapped_grpc_server_credentials,
      NULL TSRMLS_CC);
  retval.handlers = zend_get_std_object_handlers();
  return retval;
}

zval *grpc_php_wrap_server_credentials(grpc_server_credentials *wrapped){
  zval *server_credentials_object;
  MAKE_STD_ZVAL(server_credentials_object);
  object_init_ex(server_credentials_object, grpc_ce_server_credentials);
  wrapped_grpc_server_credentials *server_credentials =
    (wrapped_grpc_server_credentials*)zend_object_store_get_object(
        server_credentials_object TSRMLS_CC);
  server_credentials->wrapped = wrapped;
  return server_credentials_object;
}

/**
 * Create SSL credentials.
 * @param string pem_root_certs PEM encoding of the server root certificates
 * @param string pem_private_key PEM encoding of the client's private key
 * @param string pem_cert_chain PEM encoding of the client's certificate chain
 * @return Credentials The new SSL credentials object
 */
PHP_METHOD(ServerCredentials, createSsl){
  char *pem_root_certs = 0;
  char *pem_private_key;
  char *pem_cert_chain;

  int root_certs_length = 0, private_key_length, cert_chain_length;

  /* "s!ss" == 1 nullable string, 2 strings */
  if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
                           "s!ss",
                           &pem_root_certs, &root_certs_length,
                           &pem_private_key, &private_key_length,
                           &pem_cert_chain, &cert_chain_length) == FAILURE) {
    zend_throw_exception(spl_ce_InvalidArgumentException,
                         "createSsl expects 3 strings",
                         1 TSRMLS_CC);
    return;
  }
  grpc_server_credentials *creds = grpc_ssl_server_credentials_create(
      (unsigned char*)pem_root_certs, (size_t)root_certs_length,
      (unsigned char*)pem_private_key, (size_t)private_key_length,
      (unsigned char*)pem_cert_chain, (size_t)cert_chain_length);
  zval *creds_object = grpc_php_wrap_server_credentials(creds);
  RETURN_DESTROY_ZVAL(creds_object);
}

/**
 * Create fake credentials. Only to be used for testing.
 * @return ServerCredentials The new fake credentials object
 */
PHP_METHOD(ServerCredentials, createFake){
  grpc_server_credentials *creds =
      grpc_fake_transport_security_server_credentials_create();
  zval *creds_object = grpc_php_wrap_server_credentials(creds);
  RETURN_DESTROY_ZVAL(creds_object);
}

static zend_function_entry server_credentials_methods[] = {
  PHP_ME(ServerCredentials, createSsl, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
  PHP_ME(ServerCredentials, createFake, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
  PHP_FE_END
};

void grpc_init_server_credentials(TSRMLS_D){
  zend_class_entry ce;
  INIT_CLASS_ENTRY(ce, "Grpc\\ServerCredentials", server_credentials_methods);
  ce.create_object = create_wrapped_grpc_server_credentials;
  grpc_ce_server_credentials = zend_register_internal_class(&ce TSRMLS_CC);
}