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sapnwrfc.c
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sapnwrfc.c
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/**
* Copyright (c) 2016 - 2017 Gregor Kralik <g.kralik (at) gmail.com>
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* Author: Gregor Kralik <g.kralik (at) gmail.com>
*/
#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 "Zend/zend_exceptions.h"
#include "php_sapnwrfc.h"
#include "exceptions.h"
#include "string_helper.h"
#include "rfc_parameters.h"
#include "sapnwrfc.h"
// class entries
zend_class_entry *sapnwrfc_connection_ce;
zend_class_entry *sapnwrfc_function_ce;
// object handlers
zend_object_handlers sapnwrfc_connection_object_handlers;
zend_object_handlers sapnwrfc_function_object_handlers;
// connection object
typedef struct _sapnwrfc_connection_object {
RFC_CONNECTION_HANDLE rfc_handle;
RFC_CONNECTION_PARAMETER *rfc_login_params;
int rfc_login_params_len;
// used as the repository ID when clearing the cache
zend_string *system_id;
unsigned int use_function_desc_cache;
zend_object zobj;
} sapnwrfc_connection_object;
// function object
typedef struct _sapnwrfc_function_object {
RFC_CONNECTION_HANDLE rfc_handle;
RFC_FUNCTION_DESC_HANDLE function_desc_handle;
unsigned int parameter_count;
HashTable *parameter_status;
zend_string *name;
zend_object zobj;
} sapnwrfc_function_object;
// helpers for accessing the internal objects
static inline sapnwrfc_connection_object *sapnwrfc_connection_object_fetch(zend_object *obj)
{
return (sapnwrfc_connection_object *)((char *)obj - XtOffsetOf(sapnwrfc_connection_object, zobj));
}
#define SAPNWRFC_CONNECTION_OBJ_P(zv) SAPNWRFC_CONNECTION_OBJ(Z_OBJ_P(zv))
#define SAPNWRFC_CONNECTION_OBJ(zo) sapnwrfc_connection_object_fetch(zo)
static inline sapnwrfc_function_object *sapnwrfc_function_object_fetch(zend_object *obj)
{
return (sapnwrfc_function_object *)((char *)obj - XtOffsetOf(sapnwrfc_function_object, zobj));
}
#define SAPNWRFC_FUNCTION_OBJ_P(zv) SAPNWRFC_FUNCTION_OBJ(Z_OBJ_P(zv))
#define SAPNWRFC_FUNCTION_OBJ(zo) sapnwrfc_function_object_fetch(zo)
// forward declaration of helper methods
unsigned int rfc_clear_function_desc_cache(zend_string *function_name, zend_string *repository_id);
// forward declaration of class methods
PHP_METHOD(Connection, __construct);
PHP_METHOD(Connection, getAttributes);
PHP_METHOD(Connection, ping);
PHP_METHOD(Connection, getFunction);
PHP_METHOD(Connection, close);
PHP_METHOD(Connection, setIniPath);
PHP_METHOD(Connection, reloadIniFile);
PHP_METHOD(Connection, setTraceDir);
PHP_METHOD(Connection, setTraceLevel);
PHP_METHOD(Connection, version);
PHP_METHOD(Connection, rfcVersion);
PHP_METHOD(RemoteFunction, invoke);
PHP_METHOD(RemoteFunction, setParameterActive);
PHP_METHOD(RemoteFunction, isParameterActive);
ZEND_BEGIN_ARG_INFO_EX(arginfo_Connection___construct, 0, 0, 1)
ZEND_ARG_ARRAY_INFO(0, parameters, 0)
ZEND_ARG_ARRAY_INFO(0, options, 1)
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_getAttributes, IS_ARRAY, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_getAttributes, IS_ARRAY, NULL, 0)
#endif
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_ping, _IS_BOOL, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_ping, _IS_BOOL, NULL, 0)
#endif
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_OBJ_INFO_EX(arginfo_Connection_getFunction, 0, 1, SAPNWRFC\\RemoteFunction, 0)
#else
// NOTE: strangeley, the macro is defined with class_name, not #class_name. enclose in quotes to mitigate
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_Connection_getFunction, 0, 1, IS_OBJECT, "SAPNWRFC\\RemoteFunction", 0)
#endif
ZEND_ARG_TYPE_INFO(0, functionName, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, invalidateCache, _IS_BOOL, 0)
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_close, _IS_BOOL, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_close, _IS_BOOL, NULL, 0)
#endif
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_Connection_setIniPath, 0, 1, _IS_BOOL, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_Connection_setIniPath, 0, 1, _IS_BOOL, NULL, 0)
#endif
ZEND_ARG_TYPE_INFO(0, path, IS_STRING, 0)
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_reloadIniFile, _IS_BOOL, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_reloadIniFile, _IS_BOOL, NULL, 0)
#endif
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_Connection_setTraceDir, 0, 1, _IS_BOOL, 1)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_Connection_setTraceDir, 0, 1, _IS_BOOL, NULL, 1)
#endif
ZEND_ARG_TYPE_INFO(0, path, IS_STRING, 0)
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_Connection_setTraceLevel, 0, 1, _IS_BOOL, 1)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_Connection_setTraceLevel, 0, 1, _IS_BOOL, NULL, 1)
#endif
ZEND_ARG_TYPE_INFO(0, level, IS_LONG, 0)
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_version, IS_STRING, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_version, IS_STRING, NULL, 0)
#endif
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_rfcVersion, IS_STRING, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_Connection_rfcVersion, IS_STRING, NULL, 0)
#endif
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_RemoteFunction_invoke, 0, 0, IS_ARRAY, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_RemoteFunction_invoke, 0, 0, IS_ARRAY, NULL, 0)
#endif
ZEND_ARG_ARRAY_INFO(0, parameters, 0)
ZEND_ARG_ARRAY_INFO(0, options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_RemoteFunction_setParameterActive, 0, 0, 2)
ZEND_ARG_TYPE_INFO(0, parameterName, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, isActive, _IS_BOOL, 0)
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_RemoteFunction_isParameterActive, 0, 1, _IS_BOOL, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_RemoteFunction_isParameterActive, 0, 1, _IS_BOOL, NULL, 0)
#endif
ZEND_ARG_TYPE_INFO(0, parameterName, IS_STRING, 0)
ZEND_END_ARG_INFO()
#if PHP_VERSION_ID >= 70200
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_clearFunctionDescCache, _IS_BOOL, 0)
#else
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(arginfo_clearFunctionDescCache, _IS_BOOL, NULL, 0)
#endif
ZEND_ARG_TYPE_INFO(0, functionName, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, repositoryId, IS_STRING, 1)
ZEND_END_ARG_INFO()
// class method tables
static zend_function_entry sapnwrfc_connection_class_functions[] = {
PHP_ME(Connection, __construct, arginfo_Connection___construct, ZEND_ACC_PUBLIC)
PHP_ME(Connection, getAttributes, arginfo_Connection_getAttributes, ZEND_ACC_PUBLIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, ping, arginfo_Connection_ping, ZEND_ACC_PUBLIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, getFunction, arginfo_Connection_getFunction, ZEND_ACC_PUBLIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, close, arginfo_Connection_close, ZEND_ACC_PUBLIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, setIniPath, arginfo_Connection_setIniPath, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, reloadIniFile, arginfo_Connection_reloadIniFile, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, setTraceDir, arginfo_Connection_setTraceDir, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, setTraceLevel, arginfo_Connection_setTraceLevel, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, version, arginfo_Connection_version, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(Connection, rfcVersion, arginfo_Connection_rfcVersion, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_FE_END
};
static zend_function_entry sapnwrfc_function_class_functions[] = {
PHP_ME(RemoteFunction, invoke, arginfo_RemoteFunction_invoke, ZEND_ACC_PUBLIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(RemoteFunction, setParameterActive, arginfo_RemoteFunction_setParameterActive, ZEND_ACC_PUBLIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_ME(RemoteFunction, isParameterActive, arginfo_RemoteFunction_isParameterActive, ZEND_ACC_PUBLIC | ZEND_ACC_HAS_RETURN_TYPE)
PHP_FE_END
};
// connection object handlers
static zend_object *sapnwrfc_connection_object_create(zend_class_entry *ce)
{
sapnwrfc_connection_object *intern;
intern = ecalloc(1, sizeof(sapnwrfc_connection_object) + zend_object_properties_size(ce));
zend_object_std_init(&intern->zobj, ce);
object_properties_init(&intern->zobj, ce);
intern->zobj.handlers = &sapnwrfc_connection_object_handlers;
return &intern->zobj;
}
static void sapnwrfc_connection_object_free(zend_object *object)
{
RFC_ERROR_INFO error_info;
sapnwrfc_connection_object *intern;
int i;
intern = SAPNWRFC_CONNECTION_OBJ(object);
/* free the RFC handle */
if(intern->rfc_handle) {
RfcCloseConnection(intern->rfc_handle, &error_info);
intern->rfc_handle = NULL;
}
intern->rfc_handle = NULL;
// free login parameters
if(intern->rfc_login_params) {
for (i = 0; i < intern->rfc_login_params_len; i++) {
free((char *)intern->rfc_login_params[i].name);
free((char *)intern->rfc_login_params[i].value);
}
efree(intern->rfc_login_params);
}
// free the system_id
if (intern->system_id) {
zend_string_release(intern->system_id);
}
/* call Zend's free handler, which will free the object properties */
zend_object_std_dtor(&intern->zobj);
}
// function object handlers
static zend_object *sapnwrfc_function_object_create(zend_class_entry *ce)
{
sapnwrfc_function_object *intern;
intern = ecalloc(1, sizeof(sapnwrfc_function_object) + zend_object_properties_size(ce));
zend_object_std_init(&intern->zobj, ce);
object_properties_init(&intern->zobj, ce);
intern->zobj.handlers = &sapnwrfc_function_object_handlers;
ALLOC_HASHTABLE(intern->parameter_status);
return &intern->zobj;
}
static void sapnwrfc_function_object_free(zend_object *object)
{
RFC_ERROR_INFO error_info;
sapnwrfc_function_object *intern;
intern = SAPNWRFC_FUNCTION_OBJ(object);
if (intern->function_desc_handle) {
(void) RfcDestroyFunctionDesc(intern->function_desc_handle, &error_info);
intern->function_desc_handle = NULL;
}
intern->rfc_handle = NULL;
intern->parameter_count = 0;
zend_hash_destroy(intern->parameter_status);
efree(intern->parameter_status);
zend_string_release(intern->name);
/* call Zend's free handler, which will free the object properties */
zend_object_std_dtor(&intern->zobj);
}
static void sapnwrfc_connection_set_options(sapnwrfc_connection_object *intern, HashTable *options)
{
zend_string *key;
zval *val;
// set defaults
intern->use_function_desc_cache = 1;
if (!options) {
return;
}
ZEND_HASH_FOREACH_STR_KEY_VAL(options, key, val) {
if (key) {
if (strncasecmp(ZSTR_VAL(key), "use_function_desc_cache", strlen("use_function_desc_cache")) == 0) {
convert_to_boolean(val);
intern->use_function_desc_cache = zend_is_true(val);
}
}
} ZEND_HASH_FOREACH_END();
}
static void sapnwrfc_open_connection(sapnwrfc_connection_object *intern, HashTable *connection_params)
{
RFC_ERROR_INFO error_info;
RFC_ATTRIBUTES attributes;
RFC_RC rc;
int i = 0;
zend_string *key;
zval *val;
intern->rfc_login_params_len = zend_hash_num_elements(connection_params);
intern->rfc_login_params = ecalloc(intern->rfc_login_params_len, sizeof(RFC_CONNECTION_PARAMETER));
ZEND_HASH_FOREACH_STR_KEY_VAL(connection_params, key, val) {
if (key) { // is string
ZVAL_DEREF(val);
convert_to_string_ex(val);
// those are free'd in sapnwrfc_connection_object_free
intern->rfc_login_params[i].name = zend_string_to_sapuc(key);
intern->rfc_login_params[i].value = zval_to_sapuc(val);
i++;
}
} ZEND_HASH_FOREACH_END();
intern->rfc_handle = RfcOpenConnection(intern->rfc_login_params, intern->rfc_login_params_len, &error_info);
if (!intern->rfc_handle) {
sapnwrfc_throw_connection_exception(error_info, "Could not open connection");
}
// lookup the system ID. it is used as a key for the function desc cache
rc = RfcGetConnectionAttributes(intern->rfc_handle, &attributes, &error_info);
if (rc == RFC_OK && attributes.sysId != NULL) {
intern->system_id = sapuc_to_zend_string(attributes.sysId);
} else {
intern->system_id = NULL;
}
}
PHP_METHOD(Connection, __construct)
{
sapnwrfc_connection_object *intern;
HashTable *connection_params;
HashTable *options = NULL;
long len;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
// get the connection parameters
if (zend_parse_parameters(ZEND_NUM_ARGS(), "h|h", &connection_params, &options) == FAILURE) {
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
len = zend_hash_num_elements(connection_params);
if (len == 0) {
zend_error(E_WARNING, "No connection parameters given");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
// get the connection object (we need access to the rfc_handle)
intern = SAPNWRFC_CONNECTION_OBJ_P(getThis());
// set connection options
sapnwrfc_connection_set_options(intern, options);
// open connection
// TODO inline?
sapnwrfc_open_connection(intern, connection_params);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
}
PHP_METHOD(Connection, close)
{
sapnwrfc_connection_object *intern;
RFC_RC rc = RFC_OK;
RFC_ERROR_INFO error_info;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
zend_parse_parameters_none();
intern = SAPNWRFC_CONNECTION_OBJ_P(getThis());
if(intern->rfc_handle == NULL) {
// no connection open, return false.
RETURN_FALSE;
}
rc = RfcCloseConnection(intern->rfc_handle, &error_info);
if (rc == RFC_OK) {
intern->rfc_handle = NULL;
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_TRUE;
}
// we got an error, throw an exception with details
sapnwrfc_throw_connection_exception(error_info, "Could not close connection");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
PHP_METHOD(Connection, getAttributes)
{
sapnwrfc_connection_object *intern;
RFC_ATTRIBUTES attributes;
RFC_ERROR_INFO error_info;
RFC_RC rc = RFC_OK;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
zend_parse_parameters_none();
intern = SAPNWRFC_CONNECTION_OBJ_P(getThis());
rc = RfcGetConnectionAttributes(intern->rfc_handle, &attributes, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_connection_exception(error_info, "Could not fetch connection attributes");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
array_init(return_value);
add_assoc_str(return_value, "dest", sapuc_to_zend_string(attributes.dest));
add_assoc_str(return_value, "host", sapuc_to_zend_string(attributes.host));
add_assoc_str(return_value, "partnerHost", sapuc_to_zend_string(attributes.partnerHost));
add_assoc_str(return_value, "sysNumber", sapuc_to_zend_string(attributes.sysNumber));
add_assoc_str(return_value, "sysId", sapuc_to_zend_string(attributes.sysId));
add_assoc_str(return_value, "client", sapuc_to_zend_string(attributes.client));
add_assoc_str(return_value, "user", sapuc_to_zend_string(attributes.user));
add_assoc_str(return_value, "language", sapuc_to_zend_string(attributes.language));
add_assoc_str(return_value, "trace", sapuc_to_zend_string(attributes.trace));
add_assoc_str(return_value, "isoLanguage", sapuc_to_zend_string(attributes.isoLanguage));
add_assoc_str(return_value, "codepage", sapuc_to_zend_string(attributes.codepage));
add_assoc_str(return_value, "partnerCodepage", sapuc_to_zend_string(attributes.partnerCodepage));
add_assoc_str(return_value, "rfcRole", sapuc_to_zend_string(attributes.rfcRole));
add_assoc_str(return_value, "type", sapuc_to_zend_string(attributes.type));
add_assoc_str(return_value, "partnerType", sapuc_to_zend_string(attributes.partnerType));
add_assoc_str(return_value, "rel", sapuc_to_zend_string(attributes.rel));
add_assoc_str(return_value, "partnerRel", sapuc_to_zend_string(attributes.partnerRel));
add_assoc_str(return_value, "kernelRel", sapuc_to_zend_string(attributes.kernelRel));
add_assoc_str(return_value, "cpicConvId", sapuc_to_zend_string(attributes.cpicConvId));
add_assoc_str(return_value, "progName", sapuc_to_zend_string(attributes.progName));
#ifdef HAVE_RFC_ATTRIBUTES_PARTNER_BYTES_PER_CHAR
add_assoc_str(return_value, "partnerBytesPerChar", sapuc_to_zend_string(attributes.partnerBytesPerChar));
#endif
#ifdef HAVE_RFC_ATTRIBUTES_PARTNER_SYSTEM_CODEPAGE
add_assoc_str(return_value, "partnerSystemCodepage", sapuc_to_zend_string(attributes.partnerSystemCodepage));
#endif
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
}
PHP_METHOD(Connection, ping)
{
sapnwrfc_connection_object *intern;
RFC_ERROR_INFO error_info;
RFC_RC rc = RFC_OK;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
zend_parse_parameters_none();
intern = SAPNWRFC_CONNECTION_OBJ_P(getThis());
rc = RfcPing(intern->rfc_handle, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_connection_exception(error_info, "Failed to ping connection");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_TRUE;
}
PHP_METHOD(Connection, getFunction)
{
sapnwrfc_connection_object *intern;
sapnwrfc_function_object *func_intern;
zend_string *function_name;
zend_string *tmp;
zval zv_true;
zval parameter_description;
unsigned i;
RFC_ERROR_INFO error_info;
RFC_RC rc = RFC_OK;
RFC_FUNCTION_DESC_HANDLE function_desc_handle;
RFC_PARAMETER_DESC parameter_desc;
SAP_UC *function_name_u;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &function_name) == FAILURE) {
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
intern = SAPNWRFC_CONNECTION_OBJ_P(getThis());
// clear the function desc cache before looking up the function if requested
if (!intern->use_function_desc_cache) {
(void) rfc_clear_function_desc_cache(function_name, intern->system_id);
// if clearing the cache did not work, we just try to continue anyway...
}
// get function description
function_desc_handle = RfcGetFunctionDesc(intern->rfc_handle,
(function_name_u = zend_string_to_sapuc(function_name)),
&error_info);
free((char *)function_name_u);
if (function_desc_handle == NULL) {
sapnwrfc_throw_function_exception(error_info, "Failed to lookup function %s", ZSTR_VAL(function_name));
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
// create function entry object
object_init_ex(return_value, sapnwrfc_function_ce);
func_intern = SAPNWRFC_FUNCTION_OBJ_P(return_value);
func_intern->rfc_handle = intern->rfc_handle;
func_intern->function_desc_handle = function_desc_handle;
func_intern->name = zend_string_copy(function_name);
add_property_str(return_value, "name", zend_string_copy(function_name));
// get nr of parameters
rc = RfcGetParameterCount(func_intern->function_desc_handle, &func_intern->parameter_count, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to get parameter count for function %s", ZSTR_VAL(func_intern->name));
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
// initialize parameter status hash table
zend_hash_init(func_intern->parameter_status, func_intern->parameter_count, NULL, NULL, 0);
ZVAL_TRUE(&zv_true);
for (i = 0; i < func_intern->parameter_count; i++) {
// get parameter information
rc = RfcGetParameterDescByIndex(func_intern->function_desc_handle, i, ¶meter_desc, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to get parameter description for function %s", ZSTR_VAL(func_intern->name));
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
array_init(¶meter_description);
add_assoc_str(¶meter_description, "type", sapuc_to_zend_string((SAP_UC *)RfcGetTypeAsString(parameter_desc.type)));
add_assoc_str(¶meter_description, "direction", sapuc_to_zend_string((SAP_UC *)RfcGetDirectionAsString(parameter_desc.direction)));
add_assoc_str(¶meter_description, "description", sapuc_to_zend_string(parameter_desc.parameterText));
add_assoc_bool(¶meter_description, "optional", parameter_desc.optional);
add_assoc_str(¶meter_description, "defaultValue", sapuc_to_zend_string(parameter_desc.defaultValue));
tmp = sapuc_to_zend_string(parameter_desc.name);
add_property_zval(return_value, ZSTR_VAL(tmp), ¶meter_description);
// make the parameter active by default
zend_hash_add(func_intern->parameter_status, tmp, &zv_true);
zend_string_release(tmp);
zval_ptr_dtor(¶meter_description);
}
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
}
PHP_METHOD(Connection, setIniPath)
{
RFC_ERROR_INFO error_info;
RFC_RC rc = RFC_OK;
zend_string *path;
SAP_UC *path_u;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &path) == FAILURE) {
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
rc = RfcSetIniPath((path_u = zend_string_to_sapuc(path)), &error_info);
free((char *)path_u);
if (rc != RFC_OK) {
sapnwrfc_throw_connection_exception(error_info, "Failed to set INI file path");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_TRUE;
}
PHP_METHOD(Connection, reloadIniFile)
{
RFC_ERROR_INFO error_info;
RFC_RC rc = RFC_OK;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
zend_parse_parameters_none();
rc = RfcReloadIniFile(&error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_connection_exception(error_info, "Failed to reload INI file");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_TRUE;
}
PHP_METHOD(Connection, setTraceDir)
{
RFC_ERROR_INFO error_info;
RFC_RC rc = RFC_OK;
zend_string *path;
SAP_UC *path_u;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &path) == FAILURE) {
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
rc = RfcSetTraceDir((path_u = zend_string_to_sapuc(path)), &error_info);
free((char *)path_u);
if (rc != RFC_OK) {
sapnwrfc_throw_connection_exception(error_info, "Failed to set trace directory");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
}
PHP_METHOD(Connection, setTraceLevel)
{
RFC_ERROR_INFO error_info;
RFC_RC rc = RFC_OK;
unsigned int level;
zend_replace_error_handling(EH_THROW, sapnwrfc_connection_exception_ce, NULL);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &level) == FAILURE) {
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
if (level < 0 || level > 3) {
zend_error(E_WARNING, "Failed to set trace level, out of range (0 - 3)");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
rc = RfcSetTraceLevel(NULL, NULL, level, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_connection_exception(error_info, "Failed to set trace level");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
}
// Connection class methods
PHP_METHOD(Connection, version)
{
char *version;
int len;
zend_parse_parameters_none();
len = spprintf(&version, 0, "%s", PHP_SAPNWRFC_VERSION);
RETVAL_STRINGL(version, len);
efree(version);
}
PHP_METHOD(Connection, rfcVersion)
{
char *version;
int len;
unsigned int major, minor, patch;
zend_parse_parameters_none();
RfcGetVersion(&major, &minor, &patch);
len = spprintf(&version, 0, "%d.%d.%d", major, minor, patch);
RETVAL_STRINGL(version, len);
efree(version);
}
PHP_METHOD(RemoteFunction, invoke)
{
sapnwrfc_function_object *intern;
RFC_RC rc = RFC_OK;
RFC_ERROR_INFO error_info;
RFC_FUNCTION_HANDLE function_handle;
RFC_PARAMETER_DESC parameter_desc;
int is_active;
unsigned int i = 0;
HashTable *in_parameters_hash = NULL;
HashTable *options_hash = NULL;
zend_string *tmp;
zend_string *key;
zval *val;
zval retval;
SAP_UC *parameter_name_u;
unsigned char rtrim_enabled = 0;
zend_replace_error_handling(EH_THROW, sapnwrfc_function_exception_ce, NULL);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|hh", &in_parameters_hash, &options_hash) == FAILURE) {
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
intern = SAPNWRFC_FUNCTION_OBJ_P(getThis());
// create the function handle
function_handle = RfcCreateFunction(intern->function_desc_handle, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to create function handle");
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
// set parameter status
ZEND_HASH_FOREACH_STR_KEY_VAL(intern->parameter_status, key, val) {
if (zend_is_true(val)) {
continue;
}
// deactivate the parameter if requested
rc = RfcSetParameterActive(function_handle, (parameter_name_u = zend_string_to_sapuc(key)), 0, &error_info);
free((char *)parameter_name_u);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to deactivate parameter %s", ZSTR_VAL(key));
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
} ZEND_HASH_FOREACH_END();
if (in_parameters_hash) {
ZEND_HASH_FOREACH_STR_KEY_VAL(in_parameters_hash, key, val) {
if (!key) {
// not a string key
zend_error(E_WARNING, "All parameter keys must be strings");
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
ZVAL_DEREF(val);
// get parameter desc by name
rc = RfcGetParameterDescByName(intern->function_desc_handle, (parameter_name_u = zend_string_to_sapuc(key)), ¶meter_desc, &error_info);
free((char *)parameter_name_u);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to get description for parameter %s", ZSTR_VAL(key));
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
// a parameter is provided, so make sure it is active
rc = RfcSetParameterActive(function_handle, (parameter_name_u = zend_string_to_sapuc(key)), 1, &error_info);
free((char *)parameter_name_u);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to activate parameter %s", ZSTR_VAL(key));
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
// set the parameter value
switch(parameter_desc.direction) {
case RFC_EXPORT:
break;
case RFC_IMPORT:
case RFC_CHANGING:
case RFC_TABLES:
if (rfc_set_parameter_value(function_handle, intern->function_desc_handle, key, val) == RFC_SET_VALUE_ERROR) {
// setting the parameter failed; an exception has been thrown
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
break;
default:
// unknown direction
zend_error(E_WARNING, "Unknown parameter direction");
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
} ZEND_HASH_FOREACH_END();
}
// invoke the function
rc = RfcInvoke(intern->rfc_handle, function_handle, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to invoke function %s", ZSTR_VAL(intern->name));
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
// now get the return values
array_init(return_value);
// check for rtrim option
if (options_hash) {
zval *rtrim;
if ((rtrim = zend_hash_str_find(options_hash, "rtrim", strlen("rtrim"))) != NULL) {
convert_to_boolean(rtrim);
rtrim_enabled = zend_is_true(rtrim);
}
}
for (i = 0; i < intern->parameter_count; i++) {
rc = RfcGetParameterDescByIndex(intern->function_desc_handle, i, ¶meter_desc, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to get parameter description for function %s", ZSTR_VAL(intern->name));
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
// check if the parameter is active
rc = RfcIsParameterActive(function_handle, parameter_desc.name, &is_active, &error_info);
if (rc != RFC_OK) {
sapnwrfc_throw_function_exception(error_info, "Failed to get parameter status");
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
if (!is_active) {
continue;
}
switch(parameter_desc.direction) {
case RFC_IMPORT:
break;
case RFC_EXPORT:
case RFC_CHANGING:
case RFC_TABLES:
tmp = sapuc_to_zend_string(parameter_desc.name);
retval = rfc_get_parameter_value(function_handle, intern->function_desc_handle, tmp, rtrim_enabled);
if (ZVAL_IS_NULL(&retval)) {
zend_string_release(tmp);
RfcDestroyFunction(function_handle, &error_info);
// getting the parameter failed; an exception has been thrown
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
add_assoc_zval(return_value, ZSTR_VAL(tmp), &retval);
zend_string_release(tmp);
break;
}
}
// destroy the function handle
RfcDestroyFunction(function_handle, &error_info);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
}
PHP_METHOD(RemoteFunction, setParameterActive)
{
sapnwrfc_function_object *intern;
zend_string *parameter_name;
zend_bool parameter_active;
zval tmp;
zend_replace_error_handling(EH_THROW, sapnwrfc_function_exception_ce, NULL);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Sb", ¶meter_name, ¶meter_active) == FAILURE) {
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
intern = SAPNWRFC_FUNCTION_OBJ_P(getThis());
ZVAL_BOOL(&tmp, parameter_active);
zend_hash_update(intern->parameter_status, parameter_name, &tmp);
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
}
PHP_METHOD(RemoteFunction, isParameterActive)
{
sapnwrfc_function_object *intern;
zend_string *parameter_name;
zval *tmp;
zend_replace_error_handling(EH_THROW, sapnwrfc_function_exception_ce, NULL);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", ¶meter_name) == FAILURE) {
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
return;
}
intern = SAPNWRFC_FUNCTION_OBJ_P(getThis());
tmp = zend_hash_find(intern->parameter_status, parameter_name);
if(tmp == NULL) {
zend_error(E_WARNING, "Failed to get status for parameter %s", ZSTR_VAL(parameter_name));
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_NULL();
}
zend_replace_error_handling(EH_NORMAL, NULL, NULL);
RETURN_ZVAL(tmp, 1, 0);
}
static void register_sapnwrfc_connection_object()
{
zend_class_entry ce;
memcpy(&sapnwrfc_connection_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
sapnwrfc_connection_object_handlers.offset = XtOffsetOf(sapnwrfc_connection_object, zobj);
sapnwrfc_connection_object_handlers.free_obj = sapnwrfc_connection_object_free;
sapnwrfc_connection_object_handlers.clone_obj = NULL;
INIT_CLASS_ENTRY(ce, "SAPNWRFC\\Connection", sapnwrfc_connection_class_functions);
ce.create_object = sapnwrfc_connection_object_create;
sapnwrfc_connection_ce = zend_register_internal_class(&ce);
zend_declare_class_constant_long(sapnwrfc_connection_ce, "TRACE_LEVEL_OFF", sizeof("TRACE_LEVEL_OFF") - 1, 0);
zend_declare_class_constant_long(sapnwrfc_connection_ce, "TRACE_LEVEL_BRIEF", sizeof("TRACE_LEVEL_BRIEF") - 1, 1);
zend_declare_class_constant_long(sapnwrfc_connection_ce, "TRACE_LEVEL_VERBOSE", sizeof("TRACE_LEVEL_VERBOSE") - 1, 2);
zend_declare_class_constant_long(sapnwrfc_connection_ce, "TRACE_LEVEL_FULL", sizeof("TRACE_LEVEL_FULL") - 1, 3);
}
static void register_sapnwrfc_function_object()
{
zend_class_entry ce;
memcpy(&sapnwrfc_function_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
sapnwrfc_function_object_handlers.offset = XtOffsetOf(sapnwrfc_function_object, zobj);
sapnwrfc_function_object_handlers.free_obj = sapnwrfc_function_object_free;
sapnwrfc_function_object_handlers.clone_obj = NULL;
INIT_CLASS_ENTRY(ce, "SAPNWRFC\\RemoteFunction", sapnwrfc_function_class_functions);
ce.create_object = sapnwrfc_function_object_create;
sapnwrfc_function_ce = zend_register_internal_class(&ce);
sapnwrfc_function_ce->ce_flags |= ZEND_ACC_FINAL;