/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) | +----------------------------------------------------------------------+ | This source file is subject to version 2.00 of the Zend license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.zend.com/license/2_00.txt. | | If you did not receive a copy of the Zend license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@zend.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Authors: Andi Gutmans | | Zeev Suraski | | Andrei Zmievski | | Dmitry Stogov | +----------------------------------------------------------------------+ */ #include "zend.h" #include "zend_execute.h" #include "zend_API.h" #include "zend_modules.h" #include "zend_extensions.h" #include "zend_constants.h" #include "zend_interfaces.h" #include "zend_exceptions.h" #include "zend_closures.h" #include "zend_inheritance.h" #include "zend_ini.h" #include /* these variables are true statics/globals, and have to be mutex'ed on every access */ ZEND_API HashTable module_registry; static zend_module_entry **module_request_startup_handlers; static zend_module_entry **module_request_shutdown_handlers; static zend_module_entry **module_post_deactivate_handlers; static zend_class_entry **class_cleanup_handlers; ZEND_API int _zend_get_parameters_array_ex(int param_count, zval *argument_array) /* {{{ */ { zval *param_ptr; int arg_count; param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1); arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data)); if (param_count>arg_count) { return FAILURE; } while (param_count-->0) { ZVAL_COPY_VALUE(argument_array, param_ptr); argument_array++; param_ptr++; } return SUCCESS; } /* }}} */ ZEND_API int zend_copy_parameters_array(int param_count, zval *argument_array) /* {{{ */ { zval *param_ptr; int arg_count; param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1); arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data)); if (param_count>arg_count) { return FAILURE; } while (param_count-->0) { Z_TRY_ADDREF_P(param_ptr); zend_hash_next_index_insert_new(Z_ARRVAL_P(argument_array), param_ptr); param_ptr++; } return SUCCESS; } /* }}} */ ZEND_API ZEND_COLD void zend_wrong_param_count(void) /* {{{ */ { const char *space; const char *class_name = get_active_class_name(&space); zend_internal_argument_count_error(ZEND_ARG_USES_STRICT_TYPES(), "Wrong parameter count for %s%s%s()", class_name, space, get_active_function_name()); } /* }}} */ /* Argument parsing API -- andrei */ ZEND_API char *zend_get_type_by_const(int type) /* {{{ */ { switch(type) { case IS_FALSE: case IS_TRUE: case _IS_BOOL: return "bool"; case IS_LONG: return "int"; case IS_DOUBLE: return "float"; case IS_STRING: return "string"; case IS_OBJECT: return "object"; case IS_RESOURCE: return "resource"; case IS_NULL: return "null"; case IS_CALLABLE: return "callable"; case IS_ITERABLE: return "iterable"; case IS_ARRAY: return "array"; case IS_VOID: return "void"; case _IS_NUMBER: return "number"; default: return "unknown"; } } /* }}} */ ZEND_API char *zend_zval_type_name(const zval *arg) /* {{{ */ { ZVAL_DEREF(arg); return zend_get_type_by_const(Z_TYPE_P(arg)); } /* }}} */ ZEND_API zend_string *zend_zval_get_type(const zval *arg) /* {{{ */ { switch (Z_TYPE_P(arg)) { case IS_NULL: return ZSTR_KNOWN(ZEND_STR_NULL); case IS_FALSE: case IS_TRUE: return ZSTR_KNOWN(ZEND_STR_BOOLEAN); case IS_LONG: return ZSTR_KNOWN(ZEND_STR_INTEGER); case IS_DOUBLE: return ZSTR_KNOWN(ZEND_STR_DOUBLE); case IS_STRING: return ZSTR_KNOWN(ZEND_STR_STRING); case IS_ARRAY: return ZSTR_KNOWN(ZEND_STR_ARRAY); case IS_OBJECT: return ZSTR_KNOWN(ZEND_STR_OBJECT); case IS_RESOURCE: if (zend_rsrc_list_get_rsrc_type(Z_RES_P(arg))) { return ZSTR_KNOWN(ZEND_STR_RESOURCE); } else { return ZSTR_KNOWN(ZEND_STR_CLOSED_RESOURCE); } default: return NULL; } } /* }}} */ ZEND_API ZEND_COLD int ZEND_FASTCALL zend_wrong_parameters_none_error(void) /* {{{ */ { int num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data)); zend_function *active_function = EG(current_execute_data)->func; const char *class_name = active_function->common.scope ? ZSTR_VAL(active_function->common.scope->name) : ""; zend_internal_argument_count_error( ZEND_ARG_USES_STRICT_TYPES(), "%s%s%s() expects %s %d parameter%s, %d given", class_name, \ class_name[0] ? "::" : "", \ ZSTR_VAL(active_function->common.function_name), "exactly", 0, "s", num_args); return FAILURE; } /* }}} */ ZEND_API ZEND_COLD int ZEND_FASTCALL zend_wrong_parameters_none_exception(void) /* {{{ */ { int num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data)); zend_function *active_function = EG(current_execute_data)->func; const char *class_name = active_function->common.scope ? ZSTR_VAL(active_function->common.scope->name) : ""; zend_internal_argument_count_error( 1, "%s%s%s() expects %s %d parameter%s, %d given", class_name, \ class_name[0] ? "::" : "", \ ZSTR_VAL(active_function->common.function_name), "exactly", 0, "s", num_args); return FAILURE; } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_count_error(int min_num_args, int max_num_args) /* {{{ */ { int num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data)); zend_function *active_function = EG(current_execute_data)->func; const char *class_name = active_function->common.scope ? ZSTR_VAL(active_function->common.scope->name) : ""; zend_internal_argument_count_error( ZEND_ARG_USES_STRICT_TYPES(), "%s%s%s() expects %s %d parameter%s, %d given", class_name, \ class_name[0] ? "::" : "", \ ZSTR_VAL(active_function->common.function_name), min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most", num_args < min_num_args ? min_num_args : max_num_args, (num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s", num_args); } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_count_exception(int min_num_args, int max_num_args) /* {{{ */ { int num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data)); zend_function *active_function = EG(current_execute_data)->func; const char *class_name = active_function->common.scope ? ZSTR_VAL(active_function->common.scope->name) : ""; zend_internal_argument_count_error( 1, "%s%s%s() expects %s %d parameter%s, %d given", class_name, \ class_name[0] ? "::" : "", \ ZSTR_VAL(active_function->common.function_name), min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most", num_args < min_num_args ? min_num_args : max_num_args, (num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s", num_args); } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_type_error(int num, zend_expected_type expected_type, zval *arg) /* {{{ */ { const char *space; const char *class_name; static const char * const expected_error[] = { Z_EXPECTED_TYPES(Z_EXPECTED_TYPE_STR) NULL }; if (EG(exception)) { return; } class_name = get_active_class_name(&space); zend_internal_type_error(ZEND_ARG_USES_STRICT_TYPES(), "%s%s%s() expects parameter %d to be %s, %s given", class_name, space, get_active_function_name(), num, expected_error[expected_type], zend_zval_type_name(arg)); } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_type_exception(int num, zend_expected_type expected_type, zval *arg) /* {{{ */ { const char *space; const char *class_name; static const char * const expected_error[] = { Z_EXPECTED_TYPES(Z_EXPECTED_TYPE_STR) NULL }; if (EG(exception)) { return; } class_name = get_active_class_name(&space); zend_internal_type_error(1, "%s%s%s() expects parameter %d to be %s, %s given", class_name, space, get_active_function_name(), num, expected_error[expected_type], zend_zval_type_name(arg)); } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_error(int num, char *name, zval *arg) /* {{{ */ { const char *space; const char *class_name; if (EG(exception)) { return; } class_name = get_active_class_name(&space); zend_internal_type_error(ZEND_ARG_USES_STRICT_TYPES(), "%s%s%s() expects parameter %d to be %s, %s given", class_name, space, get_active_function_name(), num, name, zend_zval_type_name(arg)); } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_exception(int num, char *name, zval *arg) /* {{{ */ { const char *space; const char *class_name; if (EG(exception)) { return; } class_name = get_active_class_name(&space); zend_internal_type_error(1, "%s%s%s() expects parameter %d to be %s, %s given", class_name, space, get_active_function_name(), num, name, zend_zval_type_name(arg)); } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(int num, char *error) /* {{{ */ { const char *space; const char *class_name; if (EG(exception)) { return; } class_name = get_active_class_name(&space); zend_internal_type_error(ZEND_ARG_USES_STRICT_TYPES(), "%s%s%s() expects parameter %d to be a valid callback, %s", class_name, space, get_active_function_name(), num, error); efree(error); } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_exception(int num, char *error) /* {{{ */ { const char *space; const char *class_name; if (EG(exception)) { return; } class_name = get_active_class_name(&space); zend_internal_type_error(1, "%s%s%s() expects parameter %d to be a valid callback, %s", class_name, space, get_active_function_name(), num, error); efree(error); } /* }}} */ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_deprecated(int num, char *error) /* {{{ */ { const char *space; const char *class_name = get_active_class_name(&space); zend_error(E_DEPRECATED, "%s%s%s() expects parameter %d to be a valid callback, %s", class_name, space, get_active_function_name(), num, error); efree(error); } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_class(zval *arg, zend_class_entry **pce, int num, int check_null) /* {{{ */ { zend_class_entry *ce_base = *pce; if (check_null && Z_TYPE_P(arg) == IS_NULL) { *pce = NULL; return 1; } if (!try_convert_to_string(arg)) { *pce = NULL; return 0; } *pce = zend_lookup_class(Z_STR_P(arg)); if (ce_base) { if ((!*pce || !instanceof_function(*pce, ce_base))) { const char *space; const char *class_name = get_active_class_name(&space); zend_internal_type_error(ZEND_ARG_USES_STRICT_TYPES(), "%s%s%s() expects parameter %d to be a class name derived from %s, '%s' given", class_name, space, get_active_function_name(), num, ZSTR_VAL(ce_base->name), Z_STRVAL_P(arg)); *pce = NULL; return 0; } } if (!*pce) { const char *space; const char *class_name = get_active_class_name(&space); zend_internal_type_error(ZEND_ARG_USES_STRICT_TYPES(), "%s%s%s() expects parameter %d to be a valid class name, '%s' given", class_name, space, get_active_function_name(), num, Z_STRVAL_P(arg)); return 0; } return 1; } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_bool_weak(zval *arg, zend_bool *dest) /* {{{ */ { if (EXPECTED(Z_TYPE_P(arg) <= IS_STRING)) { *dest = zend_is_true(arg); } else { return 0; } return 1; } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_bool_slow(zval *arg, zend_bool *dest) /* {{{ */ { if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) { return 0; } return zend_parse_arg_bool_weak(arg, dest); } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_long_weak(zval *arg, zend_long *dest) /* {{{ */ { if (EXPECTED(Z_TYPE_P(arg) == IS_DOUBLE)) { if (UNEXPECTED(zend_isnan(Z_DVAL_P(arg)))) { return 0; } if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(Z_DVAL_P(arg)))) { return 0; } else { *dest = zend_dval_to_lval(Z_DVAL_P(arg)); } } else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) { double d; int type; if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), dest, &d)) != IS_LONG)) { if (EXPECTED(type != 0)) { if (UNEXPECTED(zend_isnan(d))) { return 0; } if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(d))) { return 0; } else { *dest = zend_dval_to_lval(d); } } else { return 0; } } if (UNEXPECTED(EG(exception))) { return 0; } } else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) { *dest = 0; } else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) { *dest = 1; } else { return 0; } return 1; } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_long_slow(zval *arg, zend_long *dest) /* {{{ */ { if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) { return 0; } return zend_parse_arg_long_weak(arg, dest); } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_long_cap_weak(zval *arg, zend_long *dest) /* {{{ */ { if (EXPECTED(Z_TYPE_P(arg) == IS_DOUBLE)) { if (UNEXPECTED(zend_isnan(Z_DVAL_P(arg)))) { return 0; } *dest = zend_dval_to_lval_cap(Z_DVAL_P(arg)); } else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) { double d; int type; if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), dest, &d)) != IS_LONG)) { if (EXPECTED(type != 0)) { if (UNEXPECTED(zend_isnan(d))) { return 0; } *dest = zend_dval_to_lval_cap(d); } else { return 0; } } if (UNEXPECTED(EG(exception))) { return 0; } } else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) { *dest = 0; } else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) { *dest = 1; } else { return 0; } return 1; } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_long_cap_slow(zval *arg, zend_long *dest) /* {{{ */ { if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) { return 0; } return zend_parse_arg_long_cap_weak(arg, dest); } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_double_weak(zval *arg, double *dest) /* {{{ */ { if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) { *dest = (double)Z_LVAL_P(arg); } else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) { zend_long l; int type; if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), &l, dest)) != IS_DOUBLE)) { if (EXPECTED(type != 0)) { *dest = (double)(l); } else { return 0; } } if (UNEXPECTED(EG(exception))) { return 0; } } else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) { *dest = 0.0; } else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) { *dest = 1.0; } else { return 0; } return 1; } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_double_slow(zval *arg, double *dest) /* {{{ */ { if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) { /* SSTH Exception: IS_LONG may be accepted instead as IS_DOUBLE */ *dest = (double)Z_LVAL_P(arg); } else if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) { return 0; } return zend_parse_arg_double_weak(arg, dest); } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_str_weak(zval *arg, zend_string **dest) /* {{{ */ { if (EXPECTED(Z_TYPE_P(arg) < IS_STRING)) { convert_to_string(arg); *dest = Z_STR_P(arg); } else if (UNEXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) { if (Z_OBJ_HANDLER_P(arg, cast_object)) { zval obj; if (Z_OBJ_HANDLER_P(arg, cast_object)(arg, &obj, IS_STRING) == SUCCESS) { zval_ptr_dtor(arg); ZVAL_COPY_VALUE(arg, &obj); *dest = Z_STR_P(arg); return 1; } } else if (Z_OBJ_HANDLER_P(arg, get)) { zval rv; zval *z = Z_OBJ_HANDLER_P(arg, get)(arg, &rv); if (Z_TYPE_P(z) != IS_OBJECT) { zval_ptr_dtor(arg); if (Z_TYPE_P(z) == IS_STRING) { ZVAL_COPY_VALUE(arg, z); } else { ZVAL_STR(arg, zval_get_string_func(z)); zval_ptr_dtor(z); } *dest = Z_STR_P(arg); return 1; } zval_ptr_dtor(z); } return 0; } else { return 0; } return 1; } /* }}} */ ZEND_API int ZEND_FASTCALL zend_parse_arg_str_slow(zval *arg, zend_string **dest) /* {{{ */ { if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) { return 0; } return zend_parse_arg_str_weak(arg, dest); } /* }}} */ static const char *zend_parse_arg_impl(int arg_num, zval *arg, va_list *va, const char **spec, char **error, int *severity) /* {{{ */ { const char *spec_walk = *spec; char c = *spec_walk++; int check_null = 0; int separate = 0; zval *real_arg = arg; /* scan through modifiers */ ZVAL_DEREF(arg); while (1) { if (*spec_walk == '/') { SEPARATE_ZVAL_NOREF(arg); real_arg = arg; separate = 1; } else if (*spec_walk == '!') { check_null = 1; } else { break; } spec_walk++; } switch (c) { case 'l': case 'L': { zend_long *p = va_arg(*va, zend_long *); zend_bool *is_null = NULL; if (check_null) { is_null = va_arg(*va, zend_bool *); } if (!zend_parse_arg_long(arg, p, is_null, check_null, c == 'L')) { return "int"; } } break; case 'd': { double *p = va_arg(*va, double *); zend_bool *is_null = NULL; if (check_null) { is_null = va_arg(*va, zend_bool *); } if (!zend_parse_arg_double(arg, p, is_null, check_null)) { return "float"; } } break; case 's': { char **p = va_arg(*va, char **); size_t *pl = va_arg(*va, size_t *); if (!zend_parse_arg_string(arg, p, pl, check_null)) { return "string"; } } break; case 'p': { char **p = va_arg(*va, char **); size_t *pl = va_arg(*va, size_t *); if (!zend_parse_arg_path(arg, p, pl, check_null)) { return "a valid path"; } } break; case 'P': { zend_string **str = va_arg(*va, zend_string **); if (!zend_parse_arg_path_str(arg, str, check_null)) { return "a valid path"; } } break; case 'S': { zend_string **str = va_arg(*va, zend_string **); if (!zend_parse_arg_str(arg, str, check_null)) { return "string"; } } break; case 'b': { zend_bool *p = va_arg(*va, zend_bool *); zend_bool *is_null = NULL; if (check_null) { is_null = va_arg(*va, zend_bool *); } if (!zend_parse_arg_bool(arg, p, is_null, check_null)) { return "bool"; } } break; case 'r': { zval **p = va_arg(*va, zval **); if (!zend_parse_arg_resource(arg, p, check_null)) { return "resource"; } } break; case 'A': case 'a': { zval **p = va_arg(*va, zval **); if (!zend_parse_arg_array(arg, p, check_null, c == 'A')) { return "array"; } } break; case 'H': case 'h': { HashTable **p = va_arg(*va, HashTable **); if (!zend_parse_arg_array_ht(arg, p, check_null, c == 'H', separate)) { return "array"; } } break; case 'o': { zval **p = va_arg(*va, zval **); if (!zend_parse_arg_object(arg, p, NULL, check_null)) { return "object"; } } break; case 'O': { zval **p = va_arg(*va, zval **); zend_class_entry *ce = va_arg(*va, zend_class_entry *); if (!zend_parse_arg_object(arg, p, ce, check_null)) { if (ce) { return ZSTR_VAL(ce->name); } else { return "object"; } } } break; case 'C': { zend_class_entry *lookup, **pce = va_arg(*va, zend_class_entry **); zend_class_entry *ce_base = *pce; if (check_null && Z_TYPE_P(arg) == IS_NULL) { *pce = NULL; break; } if (!try_convert_to_string(arg)) { *pce = NULL; return "valid class name"; } if ((lookup = zend_lookup_class(Z_STR_P(arg))) == NULL) { *pce = NULL; } else { *pce = lookup; } if (ce_base) { if ((!*pce || !instanceof_function(*pce, ce_base))) { zend_spprintf(error, 0, "to be a class name derived from %s, '%s' given", ZSTR_VAL(ce_base->name), Z_STRVAL_P(arg)); *pce = NULL; return ""; } } if (!*pce) { zend_spprintf(error, 0, "to be a valid class name, '%s' given", Z_STRVAL_P(arg)); return ""; } break; } break; case 'f': { zend_fcall_info *fci = va_arg(*va, zend_fcall_info *); zend_fcall_info_cache *fcc = va_arg(*va, zend_fcall_info_cache *); char *is_callable_error = NULL; if (check_null && Z_TYPE_P(arg) == IS_NULL) { fci->size = 0; fcc->function_handler = 0; break; } if (zend_fcall_info_init(arg, 0, fci, fcc, NULL, &is_callable_error) == SUCCESS) { if (is_callable_error) { *severity = E_DEPRECATED; zend_spprintf(error, 0, "to be a valid callback, %s", is_callable_error); efree(is_callable_error); *spec = spec_walk; return ""; } break; } else { if (is_callable_error) { *severity = E_ERROR; zend_spprintf(error, 0, "to be a valid callback, %s", is_callable_error); efree(is_callable_error); return ""; } else { return "valid callback"; } } } case 'z': { zval **p = va_arg(*va, zval **); zend_parse_arg_zval_deref(real_arg, p, check_null); } break; case 'Z': /* 'Z' iz not supported anymore and should be replaced with 'z' */ ZEND_ASSERT(c != 'Z'); default: return "unknown"; } *spec = spec_walk; return NULL; } /* }}} */ static int zend_parse_arg(int arg_num, zval *arg, va_list *va, const char **spec, int flags) /* {{{ */ { const char *expected_type = NULL; char *error = NULL; int severity = 0; expected_type = zend_parse_arg_impl(arg_num, arg, va, spec, &error, &severity); if (expected_type) { if (EG(exception)) { return FAILURE; } if (!(flags & ZEND_PARSE_PARAMS_QUIET) && (*expected_type || error)) { const char *space; const char *class_name = get_active_class_name(&space); zend_bool throw_exception = ZEND_ARG_USES_STRICT_TYPES() || (flags & ZEND_PARSE_PARAMS_THROW); if (error) { zend_internal_type_error(throw_exception, "%s%s%s() expects parameter %d %s", class_name, space, get_active_function_name(), arg_num, error); efree(error); } else { zend_internal_type_error(throw_exception, "%s%s%s() expects parameter %d to be %s, %s given", class_name, space, get_active_function_name(), arg_num, expected_type, zend_zval_type_name(arg)); } } if (severity != E_DEPRECATED) { return FAILURE; } } return SUCCESS; } /* }}} */ ZEND_API int zend_parse_parameter(int flags, int arg_num, zval *arg, const char *spec, ...) { va_list va; int ret; va_start(va, spec); ret = zend_parse_arg(arg_num, arg, &va, &spec, flags); va_end(va); return ret; } static ZEND_COLD void zend_parse_parameters_debug_error(const char *msg) { zend_function *active_function = EG(current_execute_data)->func; const char *class_name = active_function->common.scope ? ZSTR_VAL(active_function->common.scope->name) : ""; zend_error_noreturn(E_CORE_ERROR, "%s%s%s(): %s", class_name, class_name[0] ? "::" : "", ZSTR_VAL(active_function->common.function_name), msg); } static int zend_parse_va_args(int num_args, const char *type_spec, va_list *va, int flags) /* {{{ */ { const char *spec_walk; int c, i; int min_num_args = -1; int max_num_args = 0; int post_varargs = 0; zval *arg; int arg_count; zend_bool have_varargs = 0; zval **varargs = NULL; int *n_varargs = NULL; for (spec_walk = type_spec; *spec_walk; spec_walk++) { c = *spec_walk; switch (c) { case 'l': case 'd': case 's': case 'b': case 'r': case 'a': case 'o': case 'O': case 'z': case 'Z': case 'C': case 'h': case 'f': case 'A': case 'H': case 'p': case 'S': case 'P': case 'L': max_num_args++; break; case '|': min_num_args = max_num_args; break; case '/': case '!': /* Pass */ break; case '*': case '+': if (have_varargs) { zend_parse_parameters_debug_error( "only one varargs specifier (* or +) is permitted"); return FAILURE; } have_varargs = 1; /* we expect at least one parameter in varargs */ if (c == '+') { max_num_args++; } /* mark the beginning of varargs */ post_varargs = max_num_args; break; default: zend_parse_parameters_debug_error("bad type specifier while parsing parameters"); return FAILURE; } } if (min_num_args < 0) { min_num_args = max_num_args; } if (have_varargs) { /* calculate how many required args are at the end of the specifier list */ post_varargs = max_num_args - post_varargs; max_num_args = -1; } if (num_args < min_num_args || (num_args > max_num_args && max_num_args >= 0)) { if (!(flags & ZEND_PARSE_PARAMS_QUIET)) { zend_function *active_function = EG(current_execute_data)->func; const char *class_name = active_function->common.scope ? ZSTR_VAL(active_function->common.scope->name) : ""; zend_bool throw_exception = ZEND_ARG_USES_STRICT_TYPES() || (flags & ZEND_PARSE_PARAMS_THROW); zend_internal_argument_count_error(throw_exception, "%s%s%s() expects %s %d parameter%s, %d given", class_name, class_name[0] ? "::" : "", ZSTR_VAL(active_function->common.function_name), min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most", num_args < min_num_args ? min_num_args : max_num_args, (num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s", num_args); } return FAILURE; } arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data)); if (num_args > arg_count) { zend_parse_parameters_debug_error("could not obtain parameters for parsing"); return FAILURE; } i = 0; while (num_args-- > 0) { if (*type_spec == '|') { type_spec++; } if (*type_spec == '*' || *type_spec == '+') { int num_varargs = num_args + 1 - post_varargs; /* eat up the passed in storage even if it won't be filled in with varargs */ varargs = va_arg(*va, zval **); n_varargs = va_arg(*va, int *); type_spec++; if (num_varargs > 0) { *n_varargs = num_varargs; *varargs = ZEND_CALL_ARG(EG(current_execute_data), i + 1); /* adjust how many args we have left and restart loop */ num_args += 1 - num_varargs; i += num_varargs; continue; } else { *varargs = NULL; *n_varargs = 0; } } arg = ZEND_CALL_ARG(EG(current_execute_data), i + 1); if (zend_parse_arg(i+1, arg, va, &type_spec, flags) == FAILURE) { /* clean up varargs array if it was used */ if (varargs && *varargs) { *varargs = NULL; } return FAILURE; } i++; } return SUCCESS; } /* }}} */ ZEND_API int zend_parse_parameters_ex(int flags, int num_args, const char *type_spec, ...) /* {{{ */ { va_list va; int retval; va_start(va, type_spec); retval = zend_parse_va_args(num_args, type_spec, &va, flags); va_end(va); return retval; } /* }}} */ ZEND_API int zend_parse_parameters(int num_args, const char *type_spec, ...) /* {{{ */ { va_list va; int retval; int flags = 0; va_start(va, type_spec); retval = zend_parse_va_args(num_args, type_spec, &va, flags); va_end(va); return retval; } /* }}} */ ZEND_API int zend_parse_parameters_throw(int num_args, const char *type_spec, ...) /* {{{ */ { va_list va; int retval; int flags = ZEND_PARSE_PARAMS_THROW; va_start(va, type_spec); retval = zend_parse_va_args(num_args, type_spec, &va, flags); va_end(va); return retval; } /* }}} */ ZEND_API int zend_parse_method_parameters(int num_args, zval *this_ptr, const char *type_spec, ...) /* {{{ */ { va_list va; int retval; int flags = 0; const char *p = type_spec; zval **object; zend_class_entry *ce; /* Just checking this_ptr is not enough, because fcall_common_helper does not set * Z_OBJ(EG(This)) to NULL when calling an internal function with common.scope == NULL. * In that case EG(This) would still be the $this from the calling code and we'd take the * wrong branch here. */ zend_bool is_method = EG(current_execute_data)->func->common.scope != NULL; if (!is_method || !this_ptr || Z_TYPE_P(this_ptr) != IS_OBJECT) { va_start(va, type_spec); retval = zend_parse_va_args(num_args, type_spec, &va, flags); va_end(va); } else { p++; va_start(va, type_spec); object = va_arg(va, zval **); ce = va_arg(va, zend_class_entry *); *object = this_ptr; if (ce && !instanceof_function(Z_OBJCE_P(this_ptr), ce)) { zend_error_noreturn(E_CORE_ERROR, "%s::%s() must be derived from %s::%s", ZSTR_VAL(Z_OBJCE_P(this_ptr)->name), get_active_function_name(), ZSTR_VAL(ce->name), get_active_function_name()); } retval = zend_parse_va_args(num_args, p, &va, flags); va_end(va); } return retval; } /* }}} */ ZEND_API int zend_parse_method_parameters_ex(int flags, int num_args, zval *this_ptr, const char *type_spec, ...) /* {{{ */ { va_list va; int retval; const char *p = type_spec; zval **object; zend_class_entry *ce; if (!this_ptr) { va_start(va, type_spec); retval = zend_parse_va_args(num_args, type_spec, &va, flags); va_end(va); } else { p++; va_start(va, type_spec); object = va_arg(va, zval **); ce = va_arg(va, zend_class_entry *); *object = this_ptr; if (ce && !instanceof_function(Z_OBJCE_P(this_ptr), ce)) { if (!(flags & ZEND_PARSE_PARAMS_QUIET)) { zend_error_noreturn(E_CORE_ERROR, "%s::%s() must be derived from %s::%s", ZSTR_VAL(ce->name), get_active_function_name(), ZSTR_VAL(Z_OBJCE_P(this_ptr)->name), get_active_function_name()); } va_end(va); return FAILURE; } retval = zend_parse_va_args(num_args, p, &va, flags); va_end(va); } return retval; } /* }}} */ /* This function should be called after the constructor has been called * because it may call __set from the uninitialized object otherwise. */ ZEND_API void zend_merge_properties(zval *obj, HashTable *properties) /* {{{ */ { const zend_object_handlers *obj_ht = Z_OBJ_HT_P(obj); zend_class_entry *old_scope = EG(fake_scope); zend_string *key; zval *value; EG(fake_scope) = Z_OBJCE_P(obj); ZEND_HASH_FOREACH_STR_KEY_VAL(properties, key, value) { if (key) { zval member; ZVAL_STR(&member, key); obj_ht->write_property(obj, &member, value, NULL); } } ZEND_HASH_FOREACH_END(); EG(fake_scope) = old_scope; } /* }}} */ ZEND_API int zend_update_class_constants(zend_class_entry *class_type) /* {{{ */ { if (!(class_type->ce_flags & ZEND_ACC_CONSTANTS_UPDATED)) { zend_class_entry *ce; zend_class_constant *c; zval *val; zend_property_info *prop_info; if (class_type->parent) { if (UNEXPECTED(zend_update_class_constants(class_type->parent) != SUCCESS)) { return FAILURE; } } ZEND_HASH_FOREACH_PTR(&class_type->constants_table, c) { val = &c->value; if (Z_TYPE_P(val) == IS_CONSTANT_AST) { if (UNEXPECTED(zval_update_constant_ex(val, c->ce) != SUCCESS)) { return FAILURE; } } } ZEND_HASH_FOREACH_END(); if (class_type->default_static_members_count && !CE_STATIC_MEMBERS(class_type)) { if (class_type->type == ZEND_INTERNAL_CLASS || (class_type->ce_flags & (ZEND_ACC_IMMUTABLE|ZEND_ACC_PRELOADED))) { zend_class_init_statics(class_type); } } ce = class_type; while (ce) { ZEND_HASH_FOREACH_PTR(&ce->properties_info, prop_info) { if (prop_info->ce == ce) { if (prop_info->flags & ZEND_ACC_STATIC) { val = CE_STATIC_MEMBERS(class_type) + prop_info->offset; } else { val = (zval*)((char*)class_type->default_properties_table + prop_info->offset - OBJ_PROP_TO_OFFSET(0)); } if (Z_TYPE_P(val) == IS_CONSTANT_AST) { if (prop_info->type) { zval tmp; ZVAL_COPY(&tmp, val); if (UNEXPECTED(zval_update_constant_ex(&tmp, ce) != SUCCESS)) { zval_ptr_dtor(&tmp); return FAILURE; } /* property initializers must always be evaluated with strict types */; if (UNEXPECTED(!zend_verify_property_type(prop_info, &tmp, /* strict */ 1))) { zval_ptr_dtor(&tmp); return FAILURE; } zval_ptr_dtor(val); ZVAL_COPY_VALUE(val, &tmp); } else if (UNEXPECTED(zval_update_constant_ex(val, ce) != SUCCESS)) { return FAILURE; } } } } ZEND_HASH_FOREACH_END(); ce = ce->parent; } class_type->ce_flags |= ZEND_ACC_CONSTANTS_UPDATED; } return SUCCESS; } /* }}} */ static zend_always_inline void _object_properties_init(zend_object *object, zend_class_entry *class_type) /* {{{ */ { if (class_type->default_properties_count) { zval *src = class_type->default_properties_table; zval *dst = object->properties_table; zval *end = src + class_type->default_properties_count; if (UNEXPECTED(class_type->type == ZEND_INTERNAL_CLASS)) { do { ZVAL_COPY_OR_DUP_PROP(dst, src); src++; dst++; } while (src != end); } else { do { ZVAL_COPY_PROP(dst, src); src++; dst++; } while (src != end); } } } /* }}} */ ZEND_API void object_properties_init(zend_object *object, zend_class_entry *class_type) /* {{{ */ { object->properties = NULL; _object_properties_init(object, class_type); } /* }}} */ ZEND_API void object_properties_init_ex(zend_object *object, HashTable *properties) /* {{{ */ { object->properties = properties; if (object->ce->default_properties_count) { zval *prop; zend_string *key; zend_property_info *property_info; ZEND_HASH_FOREACH_STR_KEY_VAL(properties, key, prop) { property_info = zend_get_property_info(object->ce, key, 1); if (property_info != ZEND_WRONG_PROPERTY_INFO && property_info && (property_info->flags & ZEND_ACC_STATIC) == 0) { zval *slot = OBJ_PROP(object, property_info->offset); if (UNEXPECTED(property_info->type)) { zval tmp; ZVAL_COPY_VALUE(&tmp, prop); if (UNEXPECTED(!zend_verify_property_type(property_info, &tmp, 0))) { continue; } ZVAL_COPY_VALUE(slot, &tmp); } else { ZVAL_COPY_VALUE(slot, prop); } ZVAL_INDIRECT(prop, slot); } } ZEND_HASH_FOREACH_END(); } } /* }}} */ ZEND_API void object_properties_load(zend_object *object, HashTable *properties) /* {{{ */ { zval *prop, tmp; zend_string *key; zend_long h; zend_property_info *property_info; ZEND_HASH_FOREACH_KEY_VAL(properties, h, key, prop) { if (key) { if (ZSTR_VAL(key)[0] == '\0') { const char *class_name, *prop_name; size_t prop_name_len; if (zend_unmangle_property_name_ex(key, &class_name, &prop_name, &prop_name_len) == SUCCESS) { zend_string *pname = zend_string_init(prop_name, prop_name_len, 0); zend_class_entry *prev_scope = EG(fake_scope); if (class_name && class_name[0] != '*') { zend_string *cname = zend_string_init(class_name, strlen(class_name), 0); EG(fake_scope) = zend_lookup_class(cname); zend_string_release_ex(cname, 0); } property_info = zend_get_property_info(object->ce, pname, 1); zend_string_release_ex(pname, 0); EG(fake_scope) = prev_scope; } else { property_info = ZEND_WRONG_PROPERTY_INFO; } } else { property_info = zend_get_property_info(object->ce, key, 1); } if (property_info != ZEND_WRONG_PROPERTY_INFO && property_info && (property_info->flags & ZEND_ACC_STATIC) == 0) { zval *slot = OBJ_PROP(object, property_info->offset); zval_ptr_dtor(slot); ZVAL_COPY_VALUE(slot, prop); zval_add_ref(slot); if (object->properties) { ZVAL_INDIRECT(&tmp, slot); zend_hash_update(object->properties, key, &tmp); } } else { if (!object->properties) { rebuild_object_properties(object); } prop = zend_hash_update(object->properties, key, prop); zval_add_ref(prop); } } else { if (!object->properties) { rebuild_object_properties(object); } prop = zend_hash_index_update(object->properties, h, prop); zval_add_ref(prop); } } ZEND_HASH_FOREACH_END(); } /* }}} */ /* This function requires 'properties' to contain all props declared in the * class and all props being public. If only a subset is given or the class * has protected members then you need to merge the properties separately by * calling zend_merge_properties(). */ static zend_always_inline int _object_and_properties_init(zval *arg, zend_class_entry *class_type, HashTable *properties) /* {{{ */ { if (UNEXPECTED(class_type->ce_flags & (ZEND_ACC_INTERFACE|ZEND_ACC_TRAIT|ZEND_ACC_IMPLICIT_ABSTRACT_CLASS|ZEND_ACC_EXPLICIT_ABSTRACT_CLASS))) { if (class_type->ce_flags & ZEND_ACC_INTERFACE) { zend_throw_error(NULL, "Cannot instantiate interface %s", ZSTR_VAL(class_type->name)); } else if (class_type->ce_flags & ZEND_ACC_TRAIT) { zend_throw_error(NULL, "Cannot instantiate trait %s", ZSTR_VAL(class_type->name)); } else { zend_throw_error(NULL, "Cannot instantiate abstract class %s", ZSTR_VAL(class_type->name)); } ZVAL_NULL(arg); Z_OBJ_P(arg) = NULL; return FAILURE; } if (UNEXPECTED(!(class_type->ce_flags & ZEND_ACC_CONSTANTS_UPDATED))) { if (UNEXPECTED(zend_update_class_constants(class_type) != SUCCESS)) { ZVAL_NULL(arg); Z_OBJ_P(arg) = NULL; return FAILURE; } } if (class_type->create_object == NULL) { zend_object *obj = zend_objects_new(class_type); ZVAL_OBJ(arg, obj); if (properties) { object_properties_init_ex(obj, properties); } else { _object_properties_init(obj, class_type); } } else { ZVAL_OBJ(arg, class_type->create_object(class_type)); } return SUCCESS; } /* }}} */ ZEND_API int object_and_properties_init(zval *arg, zend_class_entry *class_type, HashTable *properties) /* {{{ */ { return _object_and_properties_init(arg, class_type, properties); } /* }}} */ ZEND_API int object_init_ex(zval *arg, zend_class_entry *class_type) /* {{{ */ { return _object_and_properties_init(arg, class_type, NULL); } /* }}} */ ZEND_API int object_init(zval *arg) /* {{{ */ { ZVAL_OBJ(arg, zend_objects_new(zend_standard_class_def)); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_long_ex(zval *arg, const char *key, size_t key_len, zend_long n) /* {{{ */ { zval tmp; ZVAL_LONG(&tmp, n); zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_null_ex(zval *arg, const char *key, size_t key_len) /* {{{ */ { zval tmp; ZVAL_NULL(&tmp); zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_bool_ex(zval *arg, const char *key, size_t key_len, int b) /* {{{ */ { zval tmp; ZVAL_BOOL(&tmp, b); zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_resource_ex(zval *arg, const char *key, size_t key_len, zend_resource *r) /* {{{ */ { zval tmp; ZVAL_RES(&tmp, r); zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_double_ex(zval *arg, const char *key, size_t key_len, double d) /* {{{ */ { zval tmp; ZVAL_DOUBLE(&tmp, d); zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_str_ex(zval *arg, const char *key, size_t key_len, zend_string *str) /* {{{ */ { zval tmp; ZVAL_STR(&tmp, str); zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_string_ex(zval *arg, const char *key, size_t key_len, const char *str) /* {{{ */ { zval tmp; ZVAL_STRING(&tmp, str); zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_stringl_ex(zval *arg, const char *key, size_t key_len, const char *str, size_t length) /* {{{ */ { zval tmp; ZVAL_STRINGL(&tmp, str, length); zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_assoc_zval_ex(zval *arg, const char *key, size_t key_len, zval *value) /* {{{ */ { zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, value); return SUCCESS; } /* }}} */ ZEND_API int add_index_long(zval *arg, zend_ulong index, zend_long n) /* {{{ */ { zval tmp; ZVAL_LONG(&tmp, n); zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_index_null(zval *arg, zend_ulong index) /* {{{ */ { zval tmp; ZVAL_NULL(&tmp); zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_index_bool(zval *arg, zend_ulong index, int b) /* {{{ */ { zval tmp; ZVAL_BOOL(&tmp, b); zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_index_resource(zval *arg, zend_ulong index, zend_resource *r) /* {{{ */ { zval tmp; ZVAL_RES(&tmp, r); zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_index_double(zval *arg, zend_ulong index, double d) /* {{{ */ { zval tmp; ZVAL_DOUBLE(&tmp, d); zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_index_str(zval *arg, zend_ulong index, zend_string *str) /* {{{ */ { zval tmp; ZVAL_STR(&tmp, str); zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_index_string(zval *arg, zend_ulong index, const char *str) /* {{{ */ { zval tmp; ZVAL_STRING(&tmp, str); zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_index_stringl(zval *arg, zend_ulong index, const char *str, size_t length) /* {{{ */ { zval tmp; ZVAL_STRINGL(&tmp, str, length); zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp); return SUCCESS; } /* }}} */ ZEND_API int add_next_index_long(zval *arg, zend_long n) /* {{{ */ { zval tmp; ZVAL_LONG(&tmp, n); return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE; } /* }}} */ ZEND_API int add_next_index_null(zval *arg) /* {{{ */ { zval tmp; ZVAL_NULL(&tmp); return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE; } /* }}} */ ZEND_API int add_next_index_bool(zval *arg, int b) /* {{{ */ { zval tmp; ZVAL_BOOL(&tmp, b); return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE; } /* }}} */ ZEND_API int add_next_index_resource(zval *arg, zend_resource *r) /* {{{ */ { zval tmp; ZVAL_RES(&tmp, r); return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE; } /* }}} */ ZEND_API int add_next_index_double(zval *arg, double d) /* {{{ */ { zval tmp; ZVAL_DOUBLE(&tmp, d); return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE; } /* }}} */ ZEND_API int add_next_index_str(zval *arg, zend_string *str) /* {{{ */ { zval tmp; ZVAL_STR(&tmp, str); return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE; } /* }}} */ ZEND_API int add_next_index_string(zval *arg, const char *str) /* {{{ */ { zval tmp; ZVAL_STRING(&tmp, str); return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE; } /* }}} */ ZEND_API int add_next_index_stringl(zval *arg, const char *str, size_t length) /* {{{ */ { zval tmp; ZVAL_STRINGL(&tmp, str, length); return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE; } /* }}} */ ZEND_API int array_set_zval_key(HashTable *ht, zval *key, zval *value) /* {{{ */ { zval *result; switch (Z_TYPE_P(key)) { case IS_STRING: result = zend_symtable_update(ht, Z_STR_P(key), value); break; case IS_NULL: result = zend_symtable_update(ht, ZSTR_EMPTY_ALLOC(), value); break; case IS_RESOURCE: zend_error(E_NOTICE, "Resource ID#%d used as offset, casting to integer (%d)", Z_RES_HANDLE_P(key), Z_RES_HANDLE_P(key)); result = zend_hash_index_update(ht, Z_RES_HANDLE_P(key), value); break; case IS_FALSE: result = zend_hash_index_update(ht, 0, value); break; case IS_TRUE: result = zend_hash_index_update(ht, 1, value); break; case IS_LONG: result = zend_hash_index_update(ht, Z_LVAL_P(key), value); break; case IS_DOUBLE: result = zend_hash_index_update(ht, zend_dval_to_lval(Z_DVAL_P(key)), value); break; default: zend_error(E_WARNING, "Illegal offset type"); result = NULL; } if (result) { Z_TRY_ADDREF_P(result); return SUCCESS; } else { return FAILURE; } } /* }}} */ ZEND_API int add_property_long_ex(zval *arg, const char *key, size_t key_len, zend_long n) /* {{{ */ { zval tmp; ZVAL_LONG(&tmp, n); return add_property_zval_ex(arg, key, key_len, &tmp); } /* }}} */ ZEND_API int add_property_bool_ex(zval *arg, const char *key, size_t key_len, zend_long b) /* {{{ */ { zval tmp; ZVAL_BOOL(&tmp, b); return add_property_zval_ex(arg, key, key_len, &tmp); } /* }}} */ ZEND_API int add_property_null_ex(zval *arg, const char *key, size_t key_len) /* {{{ */ { zval tmp; ZVAL_NULL(&tmp); return add_property_zval_ex(arg, key, key_len, &tmp); } /* }}} */ ZEND_API int add_property_resource_ex(zval *arg, const char *key, size_t key_len, zend_resource *r) /* {{{ */ { zval tmp; ZVAL_RES(&tmp, r); add_property_zval_ex(arg, key, key_len, &tmp); zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */ return SUCCESS; } /* }}} */ ZEND_API int add_property_double_ex(zval *arg, const char *key, size_t key_len, double d) /* {{{ */ { zval tmp; ZVAL_DOUBLE(&tmp, d); return add_property_zval_ex(arg, key, key_len, &tmp); } /* }}} */ ZEND_API int add_property_str_ex(zval *arg, const char *key, size_t key_len, zend_string *str) /* {{{ */ { zval tmp; ZVAL_STR(&tmp, str); add_property_zval_ex(arg, key, key_len, &tmp); zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */ return SUCCESS; } /* }}} */ ZEND_API int add_property_string_ex(zval *arg, const char *key, size_t key_len, const char *str) /* {{{ */ { zval tmp; ZVAL_STRING(&tmp, str); add_property_zval_ex(arg, key, key_len, &tmp); zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */ return SUCCESS; } /* }}} */ ZEND_API int add_property_stringl_ex(zval *arg, const char *key, size_t key_len, const char *str, size_t length) /* {{{ */ { zval tmp; ZVAL_STRINGL(&tmp, str, length); add_property_zval_ex(arg, key, key_len, &tmp); zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */ return SUCCESS; } /* }}} */ ZEND_API int add_property_zval_ex(zval *arg, const char *key, size_t key_len, zval *value) /* {{{ */ { zval z_key; ZVAL_STRINGL(&z_key, key, key_len); Z_OBJ_HANDLER_P(arg, write_property)(arg, &z_key, value, NULL); zval_ptr_dtor(&z_key); return SUCCESS; } /* }}} */ ZEND_API int zend_startup_module_ex(zend_module_entry *module) /* {{{ */ { size_t name_len; zend_string *lcname; if (module->module_started) { return SUCCESS; } module->module_started = 1; /* Check module dependencies */ if (module->deps) { const zend_module_dep *dep = module->deps; while (dep->name) { if (dep->type == MODULE_DEP_REQUIRED) { zend_module_entry *req_mod; name_len = strlen(dep->name); lcname = zend_string_alloc(name_len, 0); zend_str_tolower_copy(ZSTR_VAL(lcname), dep->name, name_len); if ((req_mod = zend_hash_find_ptr(&module_registry, lcname)) == NULL || !req_mod->module_started) { zend_string_efree(lcname); /* TODO: Check version relationship */ zend_error(E_CORE_WARNING, "Cannot load module '%s' because required module '%s' is not loaded", module->name, dep->name); module->module_started = 0; return FAILURE; } zend_string_efree(lcname); } ++dep; } } /* Initialize module globals */ if (module->globals_size) { #ifdef ZTS ts_allocate_id(module->globals_id_ptr, module->globals_size, (ts_allocate_ctor) module->globals_ctor, (ts_allocate_dtor) module->globals_dtor); #else if (module->globals_ctor) { module->globals_ctor(module->globals_ptr); } #endif } if (module->module_startup_func) { EG(current_module) = module; if (module->module_startup_func(module->type, module->module_number)==FAILURE) { zend_error_noreturn(E_CORE_ERROR,"Unable to start %s module", module->name); EG(current_module) = NULL; return FAILURE; } EG(current_module) = NULL; } return SUCCESS; } /* }}} */ static int zend_startup_module_zval(zval *zv) /* {{{ */ { zend_module_entry *module = Z_PTR_P(zv); return (zend_startup_module_ex(module) == SUCCESS) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE; } /* }}} */ static void zend_sort_modules(void *base, size_t count, size_t siz, compare_func_t compare, swap_func_t swp) /* {{{ */ { Bucket *b1 = base; Bucket *b2; Bucket *end = b1 + count; Bucket tmp; zend_module_entry *m, *r; while (b1 < end) { try_again: m = (zend_module_entry*)Z_PTR(b1->val); if (!m->module_started && m->deps) { const zend_module_dep *dep = m->deps; while (dep->name) { if (dep->type == MODULE_DEP_REQUIRED || dep->type == MODULE_DEP_OPTIONAL) { b2 = b1 + 1; while (b2 < end) { r = (zend_module_entry*)Z_PTR(b2->val); if (strcasecmp(dep->name, r->name) == 0) { tmp = *b1; *b1 = *b2; *b2 = tmp; goto try_again; } b2++; } } dep++; } } b1++; } } /* }}} */ ZEND_API void zend_collect_module_handlers(void) /* {{{ */ { zend_module_entry *module; int startup_count = 0; int shutdown_count = 0; int post_deactivate_count = 0; zend_class_entry *ce; int class_count = 0; /* Collect extensions with request startup/shutdown handlers */ ZEND_HASH_FOREACH_PTR(&module_registry, module) { if (module->request_startup_func) { startup_count++; } if (module->request_shutdown_func) { shutdown_count++; } if (module->post_deactivate_func) { post_deactivate_count++; } } ZEND_HASH_FOREACH_END(); module_request_startup_handlers = (zend_module_entry**)malloc( sizeof(zend_module_entry*) * (startup_count + 1 + shutdown_count + 1 + post_deactivate_count + 1)); module_request_startup_handlers[startup_count] = NULL; module_request_shutdown_handlers = module_request_startup_handlers + startup_count + 1; module_request_shutdown_handlers[shutdown_count] = NULL; module_post_deactivate_handlers = module_request_shutdown_handlers + shutdown_count + 1; module_post_deactivate_handlers[post_deactivate_count] = NULL; startup_count = 0; ZEND_HASH_FOREACH_PTR(&module_registry, module) { if (module->request_startup_func) { module_request_startup_handlers[startup_count++] = module; } if (module->request_shutdown_func) { module_request_shutdown_handlers[--shutdown_count] = module; } if (module->post_deactivate_func) { module_post_deactivate_handlers[--post_deactivate_count] = module; } } ZEND_HASH_FOREACH_END(); /* Collect internal classes with static members */ ZEND_HASH_FOREACH_PTR(CG(class_table), ce) { if (ce->type == ZEND_INTERNAL_CLASS && ce->default_static_members_count > 0) { class_count++; } } ZEND_HASH_FOREACH_END(); class_cleanup_handlers = (zend_class_entry**)malloc( sizeof(zend_class_entry*) * (class_count + 1)); class_cleanup_handlers[class_count] = NULL; if (class_count) { ZEND_HASH_FOREACH_PTR(CG(class_table), ce) { if (ce->type == ZEND_INTERNAL_CLASS && ce->default_static_members_count > 0) { class_cleanup_handlers[--class_count] = ce; } } ZEND_HASH_FOREACH_END(); } } /* }}} */ ZEND_API int zend_startup_modules(void) /* {{{ */ { zend_hash_sort_ex(&module_registry, zend_sort_modules, NULL, 0); zend_hash_apply(&module_registry, zend_startup_module_zval); return SUCCESS; } /* }}} */ ZEND_API void zend_destroy_modules(void) /* {{{ */ { free(class_cleanup_handlers); free(module_request_startup_handlers); zend_hash_graceful_reverse_destroy(&module_registry); } /* }}} */ ZEND_API zend_module_entry* zend_register_module_ex(zend_module_entry *module) /* {{{ */ { size_t name_len; zend_string *lcname; zend_module_entry *module_ptr; if (!module) { return NULL; } #if 0 zend_printf("%s: Registering module %d\n", module->name, module->module_number); #endif /* Check module dependencies */ if (module->deps) { const zend_module_dep *dep = module->deps; while (dep->name) { if (dep->type == MODULE_DEP_CONFLICTS) { name_len = strlen(dep->name); lcname = zend_string_alloc(name_len, 0); zend_str_tolower_copy(ZSTR_VAL(lcname), dep->name, name_len); if (zend_hash_exists(&module_registry, lcname) || zend_get_extension(dep->name)) { zend_string_efree(lcname); /* TODO: Check version relationship */ zend_error(E_CORE_WARNING, "Cannot load module '%s' because conflicting module '%s' is already loaded", module->name, dep->name); return NULL; } zend_string_efree(lcname); } ++dep; } } name_len = strlen(module->name); lcname = zend_string_alloc(name_len, module->type == MODULE_PERSISTENT); zend_str_tolower_copy(ZSTR_VAL(lcname), module->name, name_len); lcname = zend_new_interned_string(lcname); if ((module_ptr = zend_hash_add_mem(&module_registry, lcname, module, sizeof(zend_module_entry))) == NULL) { zend_error(E_CORE_WARNING, "Module '%s' already loaded", module->name); zend_string_release(lcname); return NULL; } module = module_ptr; EG(current_module) = module; if (module->functions && zend_register_functions(NULL, module->functions, NULL, module->type)==FAILURE) { zend_hash_del(&module_registry, lcname); zend_string_release(lcname); EG(current_module) = NULL; zend_error(E_CORE_WARNING,"%s: Unable to register functions, unable to load", module->name); return NULL; } EG(current_module) = NULL; zend_string_release(lcname); return module; } /* }}} */ ZEND_API zend_module_entry* zend_register_internal_module(zend_module_entry *module) /* {{{ */ { module->module_number = zend_next_free_module(); module->type = MODULE_PERSISTENT; return zend_register_module_ex(module); } /* }}} */ ZEND_API void zend_check_magic_method_implementation(const zend_class_entry *ce, const zend_function *fptr, int error_type) /* {{{ */ { char lcname[16]; size_t name_len; if (ZSTR_VAL(fptr->common.function_name)[0] != '_' || ZSTR_VAL(fptr->common.function_name)[1] != '_') { return; } /* we don't care if the function name is longer, in fact lowercasing only * the beginning of the name speeds up the check process */ name_len = ZSTR_LEN(fptr->common.function_name); zend_str_tolower_copy(lcname, ZSTR_VAL(fptr->common.function_name), MIN(name_len, sizeof(lcname)-1)); lcname[sizeof(lcname)-1] = '\0'; /* zend_str_tolower_copy won't necessarily set the zero byte */ if (name_len == sizeof(ZEND_DESTRUCTOR_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_DESTRUCTOR_FUNC_NAME, sizeof(ZEND_DESTRUCTOR_FUNC_NAME) - 1) && fptr->common.num_args != 0) { zend_error(error_type, "Destructor %s::%s() cannot take arguments", ZSTR_VAL(ce->name), ZEND_DESTRUCTOR_FUNC_NAME); } else if (name_len == sizeof(ZEND_CLONE_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_CLONE_FUNC_NAME, sizeof(ZEND_CLONE_FUNC_NAME) - 1) && fptr->common.num_args != 0) { zend_error(error_type, "Method %s::%s() cannot accept any arguments", ZSTR_VAL(ce->name), ZEND_CLONE_FUNC_NAME); } else if (name_len == sizeof(ZEND_GET_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_GET_FUNC_NAME, sizeof(ZEND_GET_FUNC_NAME) - 1)) { if (fptr->common.num_args != 1) { zend_error(error_type, "Method %s::%s() must take exactly 1 argument", ZSTR_VAL(ce->name), ZEND_GET_FUNC_NAME); } else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1)) { zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_GET_FUNC_NAME); } } else if (name_len == sizeof(ZEND_SET_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_SET_FUNC_NAME, sizeof(ZEND_SET_FUNC_NAME) - 1)) { if (fptr->common.num_args != 2) { zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_SET_FUNC_NAME); } else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) { zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_SET_FUNC_NAME); } } else if (name_len == sizeof(ZEND_UNSET_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_UNSET_FUNC_NAME, sizeof(ZEND_UNSET_FUNC_NAME) - 1)) { if (fptr->common.num_args != 1) { zend_error(error_type, "Method %s::%s() must take exactly 1 argument", ZSTR_VAL(ce->name), ZEND_UNSET_FUNC_NAME); } else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1)) { zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_UNSET_FUNC_NAME); } } else if (name_len == sizeof(ZEND_ISSET_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_ISSET_FUNC_NAME, sizeof(ZEND_ISSET_FUNC_NAME) - 1)) { if (fptr->common.num_args != 1) { zend_error(error_type, "Method %s::%s() must take exactly 1 argument", ZSTR_VAL(ce->name), ZEND_ISSET_FUNC_NAME); } else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1)) { zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_ISSET_FUNC_NAME); } } else if (name_len == sizeof(ZEND_CALL_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_CALL_FUNC_NAME, sizeof(ZEND_CALL_FUNC_NAME) - 1)) { if (fptr->common.num_args != 2) { zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_CALL_FUNC_NAME); } else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) { zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_CALL_FUNC_NAME); } } else if (name_len == sizeof(ZEND_CALLSTATIC_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_CALLSTATIC_FUNC_NAME, sizeof(ZEND_CALLSTATIC_FUNC_NAME)-1) ) { if (fptr->common.num_args != 2) { zend_error(error_type, "Method %s::__callStatic() must take exactly 2 arguments", ZSTR_VAL(ce->name)); } else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) { zend_error(error_type, "Method %s::__callStatic() cannot take arguments by reference", ZSTR_VAL(ce->name)); } } else if (name_len == sizeof(ZEND_TOSTRING_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_TOSTRING_FUNC_NAME, sizeof(ZEND_TOSTRING_FUNC_NAME)-1) && fptr->common.num_args != 0 ) { zend_error(error_type, "Method %s::%s() cannot take arguments", ZSTR_VAL(ce->name), ZEND_TOSTRING_FUNC_NAME); } else if (name_len == sizeof(ZEND_DEBUGINFO_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_DEBUGINFO_FUNC_NAME, sizeof(ZEND_DEBUGINFO_FUNC_NAME)-1) && fptr->common.num_args != 0) { zend_error(error_type, "Method %s::%s() cannot take arguments", ZSTR_VAL(ce->name), ZEND_DEBUGINFO_FUNC_NAME); } } /* }}} */ /* registers all functions in *library_functions in the function hash */ ZEND_API int zend_register_functions(zend_class_entry *scope, const zend_function_entry *functions, HashTable *function_table, int type) /* {{{ */ { const zend_function_entry *ptr = functions; zend_function function, *reg_function; zend_internal_function *internal_function = (zend_internal_function *)&function; int count=0, unload=0; HashTable *target_function_table = function_table; int error_type; zend_function *ctor = NULL, *dtor = NULL, *clone = NULL, *__get = NULL, *__set = NULL, *__unset = NULL, *__isset = NULL, *__call = NULL, *__callstatic = NULL, *__tostring = NULL, *__debugInfo = NULL, *serialize_func = NULL, *unserialize_func = NULL; zend_string *lowercase_name; size_t fname_len; const char *lc_class_name = NULL; size_t class_name_len = 0; if (type==MODULE_PERSISTENT) { error_type = E_CORE_WARNING; } else { error_type = E_WARNING; } if (!target_function_table) { target_function_table = CG(function_table); } internal_function->type = ZEND_INTERNAL_FUNCTION; internal_function->module = EG(current_module); memset(internal_function->reserved, 0, ZEND_MAX_RESERVED_RESOURCES * sizeof(void*)); if (scope) { class_name_len = ZSTR_LEN(scope->name); if ((lc_class_name = zend_memrchr(ZSTR_VAL(scope->name), '\\', class_name_len))) { ++lc_class_name; class_name_len -= (lc_class_name - ZSTR_VAL(scope->name)); lc_class_name = zend_str_tolower_dup(lc_class_name, class_name_len); } else { lc_class_name = zend_str_tolower_dup(ZSTR_VAL(scope->name), class_name_len); } } while (ptr->fname) { fname_len = strlen(ptr->fname); internal_function->handler = ptr->handler; internal_function->function_name = zend_string_init_interned(ptr->fname, fname_len, 1); internal_function->scope = scope; internal_function->prototype = NULL; if (ptr->flags) { if (!(ptr->flags & ZEND_ACC_PPP_MASK)) { if (ptr->flags != ZEND_ACC_DEPRECATED && scope) { zend_error(error_type, "Invalid access level for %s%s%s() - access must be exactly one of public, protected or private", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname); } internal_function->fn_flags = ZEND_ACC_PUBLIC | ptr->flags; } else { internal_function->fn_flags = ptr->flags; } } else { internal_function->fn_flags = ZEND_ACC_PUBLIC; } if (ptr->arg_info) { zend_internal_function_info *info = (zend_internal_function_info*)ptr->arg_info; internal_function->arg_info = (zend_internal_arg_info*)ptr->arg_info+1; internal_function->num_args = ptr->num_args; /* Currently you cannot denote that the function can accept less arguments than num_args */ if (info->required_num_args == (zend_uintptr_t)-1) { internal_function->required_num_args = ptr->num_args; } else { internal_function->required_num_args = info->required_num_args; } if (info->return_reference) { internal_function->fn_flags |= ZEND_ACC_RETURN_REFERENCE; } if (ptr->arg_info[ptr->num_args].is_variadic) { internal_function->fn_flags |= ZEND_ACC_VARIADIC; /* Don't count the variadic argument */ internal_function->num_args--; } if (ZEND_TYPE_IS_SET(info->type)) { if (ZEND_TYPE_IS_CLASS(info->type)) { const char *type_name = (const char*)info->type; if (type_name[0] == '?') { type_name++; } if (!scope && (!strcasecmp(type_name, "self") || !strcasecmp(type_name, "parent"))) { zend_error_noreturn(E_CORE_ERROR, "Cannot declare a return type of %s outside of a class scope", type_name); } } internal_function->fn_flags |= ZEND_ACC_HAS_RETURN_TYPE; } } else { internal_function->arg_info = NULL; internal_function->num_args = 0; internal_function->required_num_args = 0; } zend_set_function_arg_flags((zend_function*)internal_function); if (ptr->flags & ZEND_ACC_ABSTRACT) { if (scope) { /* This is a class that must be abstract itself. Here we set the check info. */ scope->ce_flags |= ZEND_ACC_IMPLICIT_ABSTRACT_CLASS; if (!(scope->ce_flags & ZEND_ACC_INTERFACE)) { /* Since the class is not an interface it needs to be declared as a abstract class. */ /* Since here we are handling internal functions only we can add the keyword flag. */ /* This time we set the flag for the keyword 'abstract'. */ scope->ce_flags |= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS; } } if (ptr->flags & ZEND_ACC_STATIC && (!scope || !(scope->ce_flags & ZEND_ACC_INTERFACE))) { zend_error(error_type, "Static function %s%s%s() cannot be abstract", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname); } } else { if (scope && (scope->ce_flags & ZEND_ACC_INTERFACE)) { efree((char*)lc_class_name); zend_error(error_type, "Interface %s cannot contain non abstract method %s()", ZSTR_VAL(scope->name), ptr->fname); return FAILURE; } if (!internal_function->handler) { if (scope) { efree((char*)lc_class_name); } zend_error(error_type, "Method %s%s%s() cannot be a NULL function", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname); zend_unregister_functions(functions, count, target_function_table); return FAILURE; } } lowercase_name = zend_string_tolower_ex(internal_function->function_name, type == MODULE_PERSISTENT); lowercase_name = zend_new_interned_string(lowercase_name); reg_function = malloc(sizeof(zend_internal_function)); memcpy(reg_function, &function, sizeof(zend_internal_function)); if (zend_hash_add_ptr(target_function_table, lowercase_name, reg_function) == NULL) { unload=1; free(reg_function); zend_string_release(lowercase_name); break; } /* If types of arguments have to be checked */ if (reg_function->common.arg_info && reg_function->common.num_args) { uint32_t i; for (i = 0; i < reg_function->common.num_args; i++) { if (ZEND_TYPE_IS_SET(reg_function->common.arg_info[i].type)) { reg_function->common.fn_flags |= ZEND_ACC_HAS_TYPE_HINTS; break; } } } if (reg_function->common.arg_info && (reg_function->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS))) { /* convert "const char*" class type names into "zend_string*" */ uint32_t i; uint32_t num_args = reg_function->common.num_args + 1; zend_arg_info *arg_info = reg_function->common.arg_info - 1; zend_arg_info *new_arg_info; if (reg_function->common.fn_flags & ZEND_ACC_VARIADIC) { num_args++; } new_arg_info = malloc(sizeof(zend_arg_info) * num_args); memcpy(new_arg_info, arg_info, sizeof(zend_arg_info) * num_args); reg_function->common.arg_info = new_arg_info + 1; for (i = 0; i < num_args; i++) { if (ZEND_TYPE_IS_CLASS(new_arg_info[i].type)) { const char *class_name = (const char*)new_arg_info[i].type; zend_bool allow_null = 0; zend_string *str; if (class_name[0] == '?') { class_name++; allow_null = 1; } str = zend_string_init_interned(class_name, strlen(class_name), 1); new_arg_info[i].type = ZEND_TYPE_ENCODE_CLASS(str, allow_null); } } } if (scope) { /* Look for ctor, dtor, clone * If it's an old-style constructor, store it only if we don't have * a constructor already. */ if ((fname_len == class_name_len) && !ctor && !memcmp(ZSTR_VAL(lowercase_name), lc_class_name, class_name_len+1)) { ctor = reg_function; } else if (zend_string_equals_literal(lowercase_name, "serialize")) { serialize_func = reg_function; } else if (zend_string_equals_literal(lowercase_name, "unserialize")) { unserialize_func = reg_function; } else if (ZSTR_VAL(lowercase_name)[0] != '_' || ZSTR_VAL(lowercase_name)[1] != '_') { reg_function = NULL; } else if (zend_string_equals_literal(lowercase_name, ZEND_CONSTRUCTOR_FUNC_NAME)) { ctor = reg_function; } else if (zend_string_equals_literal(lowercase_name, ZEND_DESTRUCTOR_FUNC_NAME)) { dtor = reg_function; if (internal_function->num_args) { zend_error(error_type, "Destructor %s::%s() cannot take arguments", ZSTR_VAL(scope->name), ptr->fname); } } else if (zend_string_equals_literal(lowercase_name, ZEND_CLONE_FUNC_NAME)) { clone = reg_function; } else if (zend_string_equals_literal(lowercase_name, ZEND_CALL_FUNC_NAME)) { __call = reg_function; } else if (zend_string_equals_literal(lowercase_name, ZEND_CALLSTATIC_FUNC_NAME)) { __callstatic = reg_function; } else if (zend_string_equals_literal(lowercase_name, ZEND_TOSTRING_FUNC_NAME)) { __tostring = reg_function; } else if (zend_string_equals_literal(lowercase_name, ZEND_GET_FUNC_NAME)) { __get = reg_function; scope->ce_flags |= ZEND_ACC_USE_GUARDS; } else if (zend_string_equals_literal(lowercase_name, ZEND_SET_FUNC_NAME)) { __set = reg_function; scope->ce_flags |= ZEND_ACC_USE_GUARDS; } else if (zend_string_equals_literal(lowercase_name, ZEND_UNSET_FUNC_NAME)) { __unset = reg_function; scope->ce_flags |= ZEND_ACC_USE_GUARDS; } else if (zend_string_equals_literal(lowercase_name, ZEND_ISSET_FUNC_NAME)) { __isset = reg_function; scope->ce_flags |= ZEND_ACC_USE_GUARDS; } else if (zend_string_equals_literal(lowercase_name, ZEND_DEBUGINFO_FUNC_NAME)) { __debugInfo = reg_function; } else { reg_function = NULL; } if (reg_function) { zend_check_magic_method_implementation(scope, reg_function, error_type); } } ptr++; count++; zend_string_release(lowercase_name); } if (unload) { /* before unloading, display all remaining bad function in the module */ if (scope) { efree((char*)lc_class_name); } while (ptr->fname) { fname_len = strlen(ptr->fname); lowercase_name = zend_string_alloc(fname_len, 0); zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ptr->fname, fname_len); if (zend_hash_exists(target_function_table, lowercase_name)) { zend_error(error_type, "Function registration failed - duplicate name - %s%s%s", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname); } zend_string_efree(lowercase_name); ptr++; } zend_unregister_functions(functions, count, target_function_table); return FAILURE; } if (scope) { scope->constructor = ctor; scope->destructor = dtor; scope->clone = clone; scope->__call = __call; scope->__callstatic = __callstatic; scope->__tostring = __tostring; scope->__get = __get; scope->__set = __set; scope->__unset = __unset; scope->__isset = __isset; scope->__debugInfo = __debugInfo; scope->serialize_func = serialize_func; scope->unserialize_func = unserialize_func; if (ctor) { ctor->common.fn_flags |= ZEND_ACC_CTOR; if (ctor->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Constructor %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(ctor->common.function_name)); } ctor->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (dtor) { dtor->common.fn_flags |= ZEND_ACC_DTOR; if (dtor->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Destructor %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(dtor->common.function_name)); } dtor->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (clone) { if (clone->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "%s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(clone->common.function_name)); } clone->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (__call) { if (__call->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Method %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(__call->common.function_name)); } __call->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (__callstatic) { if (!(__callstatic->common.fn_flags & ZEND_ACC_STATIC)) { zend_error(error_type, "Method %s::%s() must be static", ZSTR_VAL(scope->name), ZSTR_VAL(__callstatic->common.function_name)); } __callstatic->common.fn_flags |= ZEND_ACC_STATIC; } if (__tostring) { if (__tostring->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Method %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(__tostring->common.function_name)); } __tostring->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (__get) { if (__get->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Method %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(__get->common.function_name)); } __get->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (__set) { if (__set->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Method %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(__set->common.function_name)); } __set->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (__unset) { if (__unset->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Method %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(__unset->common.function_name)); } __unset->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (__isset) { if (__isset->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Method %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(__isset->common.function_name)); } __isset->common.fn_flags &= ~ZEND_ACC_ALLOW_STATIC; } if (__debugInfo) { if (__debugInfo->common.fn_flags & ZEND_ACC_STATIC) { zend_error(error_type, "Method %s::%s() cannot be static", ZSTR_VAL(scope->name), ZSTR_VAL(__debugInfo->common.function_name)); } } if (ctor && (ctor->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) { zend_error_noreturn(E_CORE_ERROR, "Constructor %s::%s() cannot declare a return type", ZSTR_VAL(scope->name), ZSTR_VAL(ctor->common.function_name)); } if (dtor && (dtor->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) { zend_error_noreturn(E_CORE_ERROR, "Destructor %s::%s() cannot declare a return type", ZSTR_VAL(scope->name), ZSTR_VAL(dtor->common.function_name)); } if (clone && (clone->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) { zend_error_noreturn(E_CORE_ERROR, "%s::%s() cannot declare a return type", ZSTR_VAL(scope->name), ZSTR_VAL(clone->common.function_name)); } efree((char*)lc_class_name); } return SUCCESS; } /* }}} */ /* count=-1 means erase all functions, otherwise, * erase the first count functions */ ZEND_API void zend_unregister_functions(const zend_function_entry *functions, int count, HashTable *function_table) /* {{{ */ { const zend_function_entry *ptr = functions; int i=0; HashTable *target_function_table = function_table; zend_string *lowercase_name; size_t fname_len; if (!target_function_table) { target_function_table = CG(function_table); } while (ptr->fname) { if (count!=-1 && i>=count) { break; } fname_len = strlen(ptr->fname); lowercase_name = zend_string_alloc(fname_len, 0); zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ptr->fname, fname_len); zend_hash_del(target_function_table, lowercase_name); zend_string_efree(lowercase_name); ptr++; i++; } } /* }}} */ ZEND_API int zend_startup_module(zend_module_entry *module) /* {{{ */ { if ((module = zend_register_internal_module(module)) != NULL && zend_startup_module_ex(module) == SUCCESS) { return SUCCESS; } return FAILURE; } /* }}} */ ZEND_API int zend_get_module_started(const char *module_name) /* {{{ */ { zend_module_entry *module; module = zend_hash_str_find_ptr(&module_registry, module_name, strlen(module_name)); return (module && module->module_started) ? SUCCESS : FAILURE; } /* }}} */ static int clean_module_class(zval *el, void *arg) /* {{{ */ { zend_class_entry *ce = (zend_class_entry *)Z_PTR_P(el); int module_number = *(int *)arg; if (ce->type == ZEND_INTERNAL_CLASS && ce->info.internal.module->module_number == module_number) { return ZEND_HASH_APPLY_REMOVE; } else { return ZEND_HASH_APPLY_KEEP; } } /* }}} */ static void clean_module_classes(int module_number) /* {{{ */ { zend_hash_apply_with_argument(EG(class_table), clean_module_class, (void *) &module_number); } /* }}} */ void module_destructor(zend_module_entry *module) /* {{{ */ { if (module->type == MODULE_TEMPORARY) { zend_clean_module_rsrc_dtors(module->module_number); clean_module_constants(module->module_number); clean_module_classes(module->module_number); } if (module->module_started && module->module_shutdown_func) { #if 0 zend_printf("%s: Module shutdown\n", module->name); #endif module->module_shutdown_func(module->type, module->module_number); } if (module->module_started && !module->module_shutdown_func && module->type == MODULE_TEMPORARY) { zend_unregister_ini_entries(module->module_number); } /* Deinitilaise module globals */ if (module->globals_size) { #ifdef ZTS if (*module->globals_id_ptr) { ts_free_id(*module->globals_id_ptr); } #else if (module->globals_dtor) { module->globals_dtor(module->globals_ptr); } #endif } module->module_started=0; if (module->type == MODULE_TEMPORARY && module->functions) { zend_unregister_functions(module->functions, -1, NULL); } #if HAVE_LIBDL if (module->handle && !getenv("ZEND_DONT_UNLOAD_MODULES")) { DL_UNLOAD(module->handle); } #endif } /* }}} */ ZEND_API void zend_activate_modules(void) /* {{{ */ { zend_module_entry **p = module_request_startup_handlers; while (*p) { zend_module_entry *module = *p; if (module->request_startup_func(module->type, module->module_number)==FAILURE) { zend_error(E_WARNING, "request_startup() for %s module failed", module->name); exit(1); } p++; } } /* }}} */ ZEND_API void zend_deactivate_modules(void) /* {{{ */ { EG(current_execute_data) = NULL; /* we're no longer executing anything */ zend_try { if (EG(full_tables_cleanup)) { zend_module_entry *module; ZEND_HASH_REVERSE_FOREACH_PTR(&module_registry, module) { if (module->request_shutdown_func) { #if 0 zend_printf("%s: Request shutdown\n", module->name); #endif module->request_shutdown_func(module->type, module->module_number); } } ZEND_HASH_FOREACH_END(); } else { zend_module_entry **p = module_request_shutdown_handlers; while (*p) { zend_module_entry *module = *p; module->request_shutdown_func(module->type, module->module_number); p++; } } } zend_end_try(); } /* }}} */ ZEND_API void zend_cleanup_internal_classes(void) /* {{{ */ { zend_class_entry **p = class_cleanup_handlers; while (*p) { zend_cleanup_internal_class_data(*p); p++; } } /* }}} */ ZEND_API void zend_post_deactivate_modules(void) /* {{{ */ { if (EG(full_tables_cleanup)) { zend_module_entry *module; zval *zv; zend_string *key; ZEND_HASH_FOREACH_PTR(&module_registry, module) { if (module->post_deactivate_func) { module->post_deactivate_func(); } } ZEND_HASH_FOREACH_END(); ZEND_HASH_REVERSE_FOREACH_STR_KEY_VAL(&module_registry, key, zv) { module = Z_PTR_P(zv); if (module->type != MODULE_TEMPORARY) { break; } module_destructor(module); free(module); zend_string_release_ex(key, 0); } ZEND_HASH_FOREACH_END_DEL(); } else { zend_module_entry **p = module_post_deactivate_handlers; while (*p) { zend_module_entry *module = *p; module->post_deactivate_func(); p++; } } } /* }}} */ /* return the next free module number */ ZEND_API int zend_next_free_module(void) /* {{{ */ { return zend_hash_num_elements(&module_registry) + 1; } /* }}} */ static zend_class_entry *do_register_internal_class(zend_class_entry *orig_class_entry, uint32_t ce_flags) /* {{{ */ { zend_class_entry *class_entry = malloc(sizeof(zend_class_entry)); zend_string *lowercase_name; *class_entry = *orig_class_entry; class_entry->type = ZEND_INTERNAL_CLASS; zend_initialize_class_data(class_entry, 0); class_entry->ce_flags = ce_flags | ZEND_ACC_CONSTANTS_UPDATED | ZEND_ACC_LINKED | ZEND_ACC_RESOLVED_PARENT | ZEND_ACC_RESOLVED_INTERFACES; class_entry->info.internal.module = EG(current_module); if (class_entry->info.internal.builtin_functions) { zend_register_functions(class_entry, class_entry->info.internal.builtin_functions, &class_entry->function_table, EG(current_module)->type); } lowercase_name = zend_string_tolower_ex(orig_class_entry->name, EG(current_module)->type == MODULE_PERSISTENT); lowercase_name = zend_new_interned_string(lowercase_name); zend_hash_update_ptr(CG(class_table), lowercase_name, class_entry); zend_string_release_ex(lowercase_name, 1); return class_entry; } /* }}} */ /* If parent_ce is not NULL then it inherits from parent_ce * If parent_ce is NULL and parent_name isn't then it looks for the parent and inherits from it * If both parent_ce and parent_name are NULL it does a regular class registration * If parent_name is specified but not found NULL is returned */ ZEND_API zend_class_entry *zend_register_internal_class_ex(zend_class_entry *class_entry, zend_class_entry *parent_ce) /* {{{ */ { zend_class_entry *register_class; register_class = zend_register_internal_class(class_entry); if (parent_ce) { zend_do_inheritance(register_class, parent_ce); zend_build_properties_info_table(register_class); } return register_class; } /* }}} */ ZEND_API void zend_class_implements(zend_class_entry *class_entry, int num_interfaces, ...) /* {{{ */ { zend_class_entry *interface_entry; va_list interface_list; va_start(interface_list, num_interfaces); while (num_interfaces--) { interface_entry = va_arg(interface_list, zend_class_entry *); zend_do_implement_interface(class_entry, interface_entry); } va_end(interface_list); } /* }}} */ /* A class that contains at least one abstract method automatically becomes an abstract class. */ ZEND_API zend_class_entry *zend_register_internal_class(zend_class_entry *orig_class_entry) /* {{{ */ { return do_register_internal_class(orig_class_entry, 0); } /* }}} */ ZEND_API zend_class_entry *zend_register_internal_interface(zend_class_entry *orig_class_entry) /* {{{ */ { return do_register_internal_class(orig_class_entry, ZEND_ACC_INTERFACE); } /* }}} */ ZEND_API int zend_register_class_alias_ex(const char *name, size_t name_len, zend_class_entry *ce, int persistent) /* {{{ */ { zend_string *lcname; zval zv, *ret; /* TODO: Move this out of here in 7.4. */ if (persistent && EG(current_module) && EG(current_module)->type == MODULE_TEMPORARY) { persistent = 0; } if (name[0] == '\\') { lcname = zend_string_alloc(name_len-1, persistent); zend_str_tolower_copy(ZSTR_VAL(lcname), name+1, name_len-1); } else { lcname = zend_string_alloc(name_len, persistent); zend_str_tolower_copy(ZSTR_VAL(lcname), name, name_len); } zend_assert_valid_class_name(lcname); lcname = zend_new_interned_string(lcname); ZVAL_ALIAS_PTR(&zv, ce); ret = zend_hash_add(CG(class_table), lcname, &zv); zend_string_release_ex(lcname, 0); if (ret) { if (!(ce->ce_flags & ZEND_ACC_IMMUTABLE)) { ce->refcount++; } return SUCCESS; } return FAILURE; } /* }}} */ ZEND_API int zend_set_hash_symbol(zval *symbol, const char *name, int name_length, zend_bool is_ref, int num_symbol_tables, ...) /* {{{ */ { HashTable *symbol_table; va_list symbol_table_list; if (num_symbol_tables <= 0) return FAILURE; if (is_ref) { ZVAL_MAKE_REF(symbol); } va_start(symbol_table_list, num_symbol_tables); while (num_symbol_tables-- > 0) { symbol_table = va_arg(symbol_table_list, HashTable *); zend_hash_str_update(symbol_table, name, name_length, symbol); Z_TRY_ADDREF_P(symbol); } va_end(symbol_table_list); return SUCCESS; } /* }}} */ /* Disabled functions support */ /* {{{ proto void display_disabled_function(void) Dummy function which displays an error when a disabled function is called. */ ZEND_API ZEND_COLD ZEND_FUNCTION(display_disabled_function) { zend_error(E_WARNING, "%s() has been disabled for security reasons", get_active_function_name()); } /* }}} */ ZEND_API int zend_disable_function(char *function_name, size_t function_name_length) /* {{{ */ { zend_internal_function *func; if ((func = zend_hash_str_find_ptr(CG(function_table), function_name, function_name_length))) { zend_free_internal_arg_info(func); func->fn_flags &= ~(ZEND_ACC_VARIADIC | ZEND_ACC_HAS_TYPE_HINTS | ZEND_ACC_HAS_RETURN_TYPE); func->num_args = 0; func->arg_info = NULL; func->handler = ZEND_FN(display_disabled_function); return SUCCESS; } return FAILURE; } /* }}} */ #ifdef ZEND_WIN32 #pragma optimize("", off) #endif static ZEND_COLD zend_object *display_disabled_class(zend_class_entry *class_type) /* {{{ */ { zend_object *intern; intern = zend_objects_new(class_type); /* Initialize default properties */ if (EXPECTED(class_type->default_properties_count != 0)) { zval *p = intern->properties_table; zval *end = p + class_type->default_properties_count; do { ZVAL_UNDEF(p); p++; } while (p != end); } zend_error(E_WARNING, "%s() has been disabled for security reasons", ZSTR_VAL(class_type->name)); return intern; } #ifdef ZEND_WIN32 #pragma optimize("", on) #endif /* }}} */ static const zend_function_entry disabled_class_new[] = { ZEND_FE_END }; ZEND_API int zend_disable_class(char *class_name, size_t class_name_length) /* {{{ */ { zend_class_entry *disabled_class; zend_string *key; zend_function *fn; key = zend_string_alloc(class_name_length, 0); zend_str_tolower_copy(ZSTR_VAL(key), class_name, class_name_length); disabled_class = zend_hash_find_ptr(CG(class_table), key); zend_string_release_ex(key, 0); if (!disabled_class) { return FAILURE; } INIT_CLASS_ENTRY_INIT_METHODS((*disabled_class), disabled_class_new); disabled_class->create_object = display_disabled_class; ZEND_HASH_FOREACH_PTR(&disabled_class->function_table, fn) { if ((fn->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS)) && fn->common.scope == disabled_class) { zend_free_internal_arg_info(&fn->internal_function); } } ZEND_HASH_FOREACH_END(); zend_hash_clean(&disabled_class->function_table); return SUCCESS; } /* }}} */ static int zend_is_callable_check_class(zend_string *name, zend_class_entry *scope, zend_fcall_info_cache *fcc, int *strict_class, char **error) /* {{{ */ { int ret = 0; zend_class_entry *ce; size_t name_len = ZSTR_LEN(name); zend_string *lcname; ALLOCA_FLAG(use_heap); ZSTR_ALLOCA_ALLOC(lcname, name_len, use_heap); zend_str_tolower_copy(ZSTR_VAL(lcname), ZSTR_VAL(name), name_len); *strict_class = 0; if (zend_string_equals_literal(lcname, "self")) { if (!scope) { if (error) *error = estrdup("cannot access self:: when no class scope is active"); } else { fcc->called_scope = zend_get_called_scope(EG(current_execute_data)); if (!fcc->called_scope || !instanceof_function(fcc->called_scope, scope)) { fcc->called_scope = scope; } fcc->calling_scope = scope; if (!fcc->object) { fcc->object = zend_get_this_object(EG(current_execute_data)); } ret = 1; } } else if (zend_string_equals_literal(lcname, "parent")) { if (!scope) { if (error) *error = estrdup("cannot access parent:: when no class scope is active"); } else if (!scope->parent) { if (error) *error = estrdup("cannot access parent:: when current class scope has no parent"); } else { fcc->called_scope = zend_get_called_scope(EG(current_execute_data)); if (!fcc->called_scope || !instanceof_function(fcc->called_scope, scope->parent)) { fcc->called_scope = scope->parent; } fcc->calling_scope = scope->parent; if (!fcc->object) { fcc->object = zend_get_this_object(EG(current_execute_data)); } *strict_class = 1; ret = 1; } } else if (zend_string_equals_literal(lcname, "static")) { zend_class_entry *called_scope = zend_get_called_scope(EG(current_execute_data)); if (!called_scope) { if (error) *error = estrdup("cannot access static:: when no class scope is active"); } else { fcc->called_scope = called_scope; fcc->calling_scope = called_scope; if (!fcc->object) { fcc->object = zend_get_this_object(EG(current_execute_data)); } *strict_class = 1; ret = 1; } } else if ((ce = zend_lookup_class(name)) != NULL) { zend_class_entry *scope; zend_execute_data *ex = EG(current_execute_data); while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) { ex = ex->prev_execute_data; } scope = ex ? ex->func->common.scope : NULL; fcc->calling_scope = ce; if (scope && !fcc->object) { zend_object *object = zend_get_this_object(EG(current_execute_data)); if (object && instanceof_function(object->ce, scope) && instanceof_function(scope, ce)) { fcc->object = object; fcc->called_scope = object->ce; } else { fcc->called_scope = ce; } } else { fcc->called_scope = fcc->object ? fcc->object->ce : ce; } *strict_class = 1; ret = 1; } else { if (error) zend_spprintf(error, 0, "class '%.*s' not found", (int)name_len, ZSTR_VAL(name)); } ZSTR_ALLOCA_FREE(lcname, use_heap); return ret; } /* }}} */ ZEND_API void zend_release_fcall_info_cache(zend_fcall_info_cache *fcc) { if (fcc->function_handler && ((fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) || fcc->function_handler->type == ZEND_OVERLOADED_FUNCTION_TEMPORARY || fcc->function_handler->type == ZEND_OVERLOADED_FUNCTION)) { if (fcc->function_handler->type != ZEND_OVERLOADED_FUNCTION && fcc->function_handler->common.function_name) { zend_string_release_ex(fcc->function_handler->common.function_name, 0); } zend_free_trampoline(fcc->function_handler); } fcc->function_handler = NULL; } static zend_always_inline int zend_is_callable_check_func(int check_flags, zval *callable, zend_fcall_info_cache *fcc, int strict_class, char **error) /* {{{ */ { zend_class_entry *ce_org = fcc->calling_scope; int retval = 0; zend_string *mname, *cname; zend_string *lmname; const char *colon; size_t clen; HashTable *ftable; int call_via_handler = 0; zend_class_entry *scope; zval *zv; ALLOCA_FLAG(use_heap) fcc->calling_scope = NULL; if (!ce_org) { zend_function *func; zend_string *lmname; /* Check if function with given name exists. * This may be a compound name that includes namespace name */ if (UNEXPECTED(Z_STRVAL_P(callable)[0] == '\\')) { /* Skip leading \ */ ZSTR_ALLOCA_ALLOC(lmname, Z_STRLEN_P(callable) - 1, use_heap); zend_str_tolower_copy(ZSTR_VAL(lmname), Z_STRVAL_P(callable) + 1, Z_STRLEN_P(callable) - 1); func = zend_fetch_function(lmname); ZSTR_ALLOCA_FREE(lmname, use_heap); } else { lmname = Z_STR_P(callable); func = zend_fetch_function(lmname); if (!func) { ZSTR_ALLOCA_ALLOC(lmname, Z_STRLEN_P(callable), use_heap); zend_str_tolower_copy(ZSTR_VAL(lmname), Z_STRVAL_P(callable), Z_STRLEN_P(callable)); func = zend_fetch_function(lmname); ZSTR_ALLOCA_FREE(lmname, use_heap); } } if (EXPECTED(func != NULL)) { fcc->function_handler = func; return 1; } } /* Split name into class/namespace and method/function names */ if ((colon = zend_memrchr(Z_STRVAL_P(callable), ':', Z_STRLEN_P(callable))) != NULL && colon > Z_STRVAL_P(callable) && *(colon-1) == ':' ) { size_t mlen; colon--; clen = colon - Z_STRVAL_P(callable); mlen = Z_STRLEN_P(callable) - clen - 2; if (colon == Z_STRVAL_P(callable)) { if (error) *error = estrdup("invalid function name"); return 0; } /* This is a compound name. * Try to fetch class and then find static method. */ if (ce_org) { scope = ce_org; } else { scope = zend_get_executed_scope(); } cname = zend_string_init(Z_STRVAL_P(callable), clen, 0); if (!zend_is_callable_check_class(cname, scope, fcc, &strict_class, error)) { zend_string_release_ex(cname, 0); return 0; } zend_string_release_ex(cname, 0); ftable = &fcc->calling_scope->function_table; if (ce_org && !instanceof_function(ce_org, fcc->calling_scope)) { if (error) zend_spprintf(error, 0, "class '%s' is not a subclass of '%s'", ZSTR_VAL(ce_org->name), ZSTR_VAL(fcc->calling_scope->name)); return 0; } mname = zend_string_init(Z_STRVAL_P(callable) + clen + 2, mlen, 0); } else if (ce_org) { /* Try to fetch find static method of given class. */ mname = Z_STR_P(callable); zend_string_addref(mname); ftable = &ce_org->function_table; fcc->calling_scope = ce_org; } else { /* We already checked for plain function before. */ if (error && !(check_flags & IS_CALLABLE_CHECK_SILENT)) { zend_spprintf(error, 0, "function '%s' not found or invalid function name", Z_STRVAL_P(callable)); } return 0; } lmname = zend_string_tolower(mname); if (strict_class && fcc->calling_scope && zend_string_equals_literal(lmname, ZEND_CONSTRUCTOR_FUNC_NAME)) { fcc->function_handler = fcc->calling_scope->constructor; if (fcc->function_handler) { retval = 1; } } else if ((zv = zend_hash_find(ftable, lmname)) != NULL) { fcc->function_handler = Z_PTR_P(zv); retval = 1; if ((fcc->function_handler->op_array.fn_flags & ZEND_ACC_CHANGED) && !strict_class) { scope = zend_get_executed_scope(); if (scope && instanceof_function(fcc->function_handler->common.scope, scope)) { zv = zend_hash_find(&scope->function_table, lmname); if (zv != NULL) { zend_function *priv_fbc = Z_PTR_P(zv); if (priv_fbc->common.fn_flags & ZEND_ACC_PRIVATE && priv_fbc->common.scope == scope) { fcc->function_handler = priv_fbc; } } } } if (!(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC) && !(check_flags & IS_CALLABLE_CHECK_NO_ACCESS) && (fcc->calling_scope && ((fcc->object && fcc->calling_scope->__call) || (!fcc->object && fcc->calling_scope->__callstatic)))) { scope = zend_get_executed_scope(); if (fcc->function_handler->common.scope != scope) { if ((fcc->function_handler->common.fn_flags & ZEND_ACC_PRIVATE) || !zend_check_protected(zend_get_function_root_class(fcc->function_handler), scope)) { retval = 0; fcc->function_handler = NULL; goto get_function_via_handler; } } } } else { get_function_via_handler: if (fcc->object && fcc->calling_scope == ce_org) { if (strict_class && ce_org->__call) { fcc->function_handler = zend_get_call_trampoline_func(ce_org, mname, 0); call_via_handler = 1; retval = 1; } else { fcc->function_handler = fcc->object->handlers->get_method(&fcc->object, mname, NULL); if (fcc->function_handler) { if (strict_class && (!fcc->function_handler->common.scope || !instanceof_function(ce_org, fcc->function_handler->common.scope))) { zend_release_fcall_info_cache(fcc); } else { retval = 1; call_via_handler = (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0; } } } } else if (fcc->calling_scope) { if (fcc->calling_scope->get_static_method) { fcc->function_handler = fcc->calling_scope->get_static_method(fcc->calling_scope, mname); } else { fcc->function_handler = zend_std_get_static_method(fcc->calling_scope, mname, NULL); } if (fcc->function_handler) { retval = 1; call_via_handler = (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0; if (call_via_handler && !fcc->object) { zend_object *object = zend_get_this_object(EG(current_execute_data)); if (object && instanceof_function(object->ce, fcc->calling_scope)) { fcc->object = object; } } } } } if (retval) { if (fcc->calling_scope && !call_via_handler) { if (fcc->function_handler->common.fn_flags & ZEND_ACC_ABSTRACT) { retval = 0; if (error) { zend_spprintf(error, 0, "cannot call abstract method %s::%s()", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name)); } } else if (!fcc->object && !(fcc->function_handler->common.fn_flags & ZEND_ACC_STATIC)) { int severity; char *verb; if (fcc->function_handler->common.fn_flags & ZEND_ACC_ALLOW_STATIC) { severity = E_DEPRECATED; verb = "should not"; } else { /* An internal function assumes $this is present and won't check that. So PHP would crash by allowing the call. */ severity = E_ERROR; verb = "cannot"; } if ((check_flags & IS_CALLABLE_CHECK_IS_STATIC) != 0) { retval = 0; } if (error) { zend_spprintf(error, 0, "non-static method %s::%s() %s be called statically", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name), verb); if (severity != E_DEPRECATED) { retval = 0; } } else if (retval) { if (severity == E_ERROR) { zend_throw_error(NULL, "Non-static method %s::%s() %s be called statically", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name), verb); } else { zend_error(severity, "Non-static method %s::%s() %s be called statically", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name), verb); } } } if (retval && !(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC) && !(check_flags & IS_CALLABLE_CHECK_NO_ACCESS)) { scope = zend_get_executed_scope(); if (fcc->function_handler->common.scope != scope) { if ((fcc->function_handler->common.fn_flags & ZEND_ACC_PRIVATE) || (!zend_check_protected(zend_get_function_root_class(fcc->function_handler), scope))) { if (error) { if (*error) { efree(*error); } zend_spprintf(error, 0, "cannot access %s method %s::%s()", zend_visibility_string(fcc->function_handler->common.fn_flags), ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name)); } retval = 0; } } } } } else if (error && !(check_flags & IS_CALLABLE_CHECK_SILENT)) { if (fcc->calling_scope) { if (error) zend_spprintf(error, 0, "class '%s' does not have a method '%s'", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(mname)); } else { if (error) zend_spprintf(error, 0, "function '%s' does not exist", ZSTR_VAL(mname)); } } zend_string_release_ex(lmname, 0); zend_string_release_ex(mname, 0); if (fcc->object) { fcc->called_scope = fcc->object->ce; if (fcc->function_handler && fcc->function_handler->common.fn_flags & ZEND_ACC_STATIC) { fcc->object = NULL; } } return retval; } /* }}} */ static zend_string *zend_create_method_string(zend_string *class_name, zend_string *method_name) { zend_string *callable_name = zend_string_alloc( ZSTR_LEN(class_name) + ZSTR_LEN(method_name) + sizeof("::") - 1, 0); char *ptr = ZSTR_VAL(callable_name); memcpy(ptr, ZSTR_VAL(class_name), ZSTR_LEN(class_name)); ptr += ZSTR_LEN(class_name); memcpy(ptr, "::", sizeof("::") - 1); ptr += sizeof("::") - 1; memcpy(ptr, ZSTR_VAL(method_name), ZSTR_LEN(method_name) + 1); return callable_name; } ZEND_API zend_string *zend_get_callable_name_ex(zval *callable, zend_object *object) /* {{{ */ { try_again: switch (Z_TYPE_P(callable)) { case IS_STRING: if (object) { return zend_create_method_string(object->ce->name, Z_STR_P(callable)); } return zend_string_copy(Z_STR_P(callable)); case IS_ARRAY: { zval *method = NULL; zval *obj = NULL; if (zend_hash_num_elements(Z_ARRVAL_P(callable)) == 2) { obj = zend_hash_index_find_deref(Z_ARRVAL_P(callable), 0); method = zend_hash_index_find_deref(Z_ARRVAL_P(callable), 1); } if (obj == NULL || method == NULL || Z_TYPE_P(method) != IS_STRING) { return ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED); } if (Z_TYPE_P(obj) == IS_STRING) { return zend_create_method_string(Z_STR_P(obj), Z_STR_P(method)); } else if (Z_TYPE_P(obj) == IS_OBJECT) { return zend_create_method_string(Z_OBJCE_P(obj)->name, Z_STR_P(method)); } else { return ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED); } } case IS_OBJECT: { zend_class_entry *calling_scope; zend_function *fptr; zend_object *object; if (Z_OBJ_HANDLER_P(callable, get_closure) && Z_OBJ_HANDLER_P(callable, get_closure)(callable, &calling_scope, &fptr, &object) == SUCCESS) { zend_class_entry *ce = Z_OBJCE_P(callable); zend_string *callable_name = zend_string_alloc( ZSTR_LEN(ce->name) + sizeof("::__invoke") - 1, 0); memcpy(ZSTR_VAL(callable_name), ZSTR_VAL(ce->name), ZSTR_LEN(ce->name)); memcpy(ZSTR_VAL(callable_name) + ZSTR_LEN(ce->name), "::__invoke", sizeof("::__invoke")); return callable_name; } return zval_get_string(callable); } case IS_REFERENCE: callable = Z_REFVAL_P(callable); goto try_again; default: return zval_get_string_func(callable); } } /* }}} */ ZEND_API zend_string *zend_get_callable_name(zval *callable) /* {{{ */ { return zend_get_callable_name_ex(callable, NULL); } /* }}} */ static zend_always_inline zend_bool zend_is_callable_impl(zval *callable, zend_object *object, uint32_t check_flags, zend_fcall_info_cache *fcc, char **error) /* {{{ */ { zend_bool ret; zend_fcall_info_cache fcc_local; int strict_class = 0; if (fcc == NULL) { fcc = &fcc_local; } if (error) { *error = NULL; } fcc->calling_scope = NULL; fcc->called_scope = NULL; fcc->function_handler = NULL; fcc->object = NULL; again: switch (Z_TYPE_P(callable)) { case IS_STRING: if (object) { fcc->object = object; fcc->calling_scope = object->ce; } if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) { fcc->called_scope = fcc->calling_scope; return 1; } check_func: ret = zend_is_callable_check_func(check_flags, callable, fcc, strict_class, error); if (fcc == &fcc_local) { zend_release_fcall_info_cache(fcc); } return ret; case IS_ARRAY: { zval *method = NULL; zval *obj = NULL; if (zend_hash_num_elements(Z_ARRVAL_P(callable)) == 2) { obj = zend_hash_index_find(Z_ARRVAL_P(callable), 0); method = zend_hash_index_find(Z_ARRVAL_P(callable), 1); } do { if (obj == NULL || method == NULL) { break; } ZVAL_DEREF(method); if (Z_TYPE_P(method) != IS_STRING) { break; } ZVAL_DEREF(obj); if (Z_TYPE_P(obj) == IS_STRING) { if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) { return 1; } if (!zend_is_callable_check_class(Z_STR_P(obj), zend_get_executed_scope(), fcc, &strict_class, error)) { return 0; } } else if (Z_TYPE_P(obj) == IS_OBJECT) { fcc->calling_scope = Z_OBJCE_P(obj); /* TBFixed: what if it's overloaded? */ fcc->object = Z_OBJ_P(obj); if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) { fcc->called_scope = fcc->calling_scope; return 1; } } else { break; } callable = method; goto check_func; } while (0); if (zend_hash_num_elements(Z_ARRVAL_P(callable)) == 2) { if (!obj || (!Z_ISREF_P(obj)? (Z_TYPE_P(obj) != IS_STRING && Z_TYPE_P(obj) != IS_OBJECT) : (Z_TYPE_P(Z_REFVAL_P(obj)) != IS_STRING && Z_TYPE_P(Z_REFVAL_P(obj)) != IS_OBJECT))) { if (error) *error = estrdup("first array member is not a valid class name or object"); } else { if (error) *error = estrdup("second array member is not a valid method"); } } else { if (error) *error = estrdup("array must have exactly two members"); } } return 0; case IS_OBJECT: if (Z_OBJ_HANDLER_P(callable, get_closure)) { if (Z_OBJ_HANDLER_P(callable, get_closure)(callable, &fcc->calling_scope, &fcc->function_handler, &fcc->object) == SUCCESS) { fcc->called_scope = fcc->calling_scope; if (fcc == &fcc_local) { zend_release_fcall_info_cache(fcc); } return 1; } else { /* Discard exceptions thrown from Z_OBJ_HANDLER_P(callable, get_closure) */ zend_clear_exception(); } } if (error) *error = estrdup("no array or string given"); return 0; case IS_REFERENCE: callable = Z_REFVAL_P(callable); goto again; default: if (error) *error = estrdup("no array or string given"); return 0; } } /* }}} */ ZEND_API zend_bool zend_is_callable_ex(zval *callable, zend_object *object, uint32_t check_flags, zend_string **callable_name, zend_fcall_info_cache *fcc, char **error) /* {{{ */ { zend_bool ret = zend_is_callable_impl(callable, object, check_flags, fcc, error); if (callable_name) { *callable_name = zend_get_callable_name_ex(callable, object); } return ret; } ZEND_API zend_bool zend_is_callable(zval *callable, uint32_t check_flags, zend_string **callable_name) /* {{{ */ { return zend_is_callable_ex(callable, NULL, check_flags, callable_name, NULL, NULL); } /* }}} */ ZEND_API zend_bool zend_make_callable(zval *callable, zend_string **callable_name) /* {{{ */ { zend_fcall_info_cache fcc; if (zend_is_callable_ex(callable, NULL, IS_CALLABLE_STRICT, callable_name, &fcc, NULL)) { if (Z_TYPE_P(callable) == IS_STRING && fcc.calling_scope) { zval_ptr_dtor_str(callable); array_init(callable); add_next_index_str(callable, zend_string_copy(fcc.calling_scope->name)); add_next_index_str(callable, zend_string_copy(fcc.function_handler->common.function_name)); } zend_release_fcall_info_cache(&fcc); return 1; } return 0; } /* }}} */ ZEND_API int zend_fcall_info_init(zval *callable, uint32_t check_flags, zend_fcall_info *fci, zend_fcall_info_cache *fcc, zend_string **callable_name, char **error) /* {{{ */ { if (!zend_is_callable_ex(callable, NULL, check_flags, callable_name, fcc, error)) { return FAILURE; } fci->size = sizeof(*fci); fci->object = fcc->object; ZVAL_COPY_VALUE(&fci->function_name, callable); fci->retval = NULL; fci->param_count = 0; fci->params = NULL; fci->no_separation = 1; return SUCCESS; } /* }}} */ ZEND_API void zend_fcall_info_args_clear(zend_fcall_info *fci, int free_mem) /* {{{ */ { if (fci->params) { zval *p = fci->params; zval *end = p + fci->param_count; while (p != end) { i_zval_ptr_dtor(p); p++; } if (free_mem) { efree(fci->params); fci->params = NULL; } } fci->param_count = 0; } /* }}} */ ZEND_API void zend_fcall_info_args_save(zend_fcall_info *fci, int *param_count, zval **params) /* {{{ */ { *param_count = fci->param_count; *params = fci->params; fci->param_count = 0; fci->params = NULL; } /* }}} */ ZEND_API void zend_fcall_info_args_restore(zend_fcall_info *fci, int param_count, zval *params) /* {{{ */ { zend_fcall_info_args_clear(fci, 1); fci->param_count = param_count; fci->params = params; } /* }}} */ ZEND_API int zend_fcall_info_args_ex(zend_fcall_info *fci, zend_function *func, zval *args) /* {{{ */ { zval *arg, *params; uint32_t n = 1; zend_fcall_info_args_clear(fci, !args); if (!args) { return SUCCESS; } if (Z_TYPE_P(args) != IS_ARRAY) { return FAILURE; } fci->param_count = zend_hash_num_elements(Z_ARRVAL_P(args)); fci->params = params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval)); ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(args), arg) { if (func && !Z_ISREF_P(arg) && ARG_SHOULD_BE_SENT_BY_REF(func, n)) { ZVAL_NEW_REF(params, arg); Z_TRY_ADDREF_P(arg); } else { ZVAL_COPY(params, arg); } params++; n++; } ZEND_HASH_FOREACH_END(); return SUCCESS; } /* }}} */ ZEND_API int zend_fcall_info_args(zend_fcall_info *fci, zval *args) /* {{{ */ { return zend_fcall_info_args_ex(fci, NULL, args); } /* }}} */ ZEND_API int zend_fcall_info_argp(zend_fcall_info *fci, int argc, zval *argv) /* {{{ */ { int i; if (argc < 0) { return FAILURE; } zend_fcall_info_args_clear(fci, !argc); if (argc) { fci->param_count = argc; fci->params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval)); for (i = 0; i < argc; ++i) { ZVAL_COPY(&fci->params[i], &argv[i]); } } return SUCCESS; } /* }}} */ ZEND_API int zend_fcall_info_argv(zend_fcall_info *fci, int argc, va_list *argv) /* {{{ */ { int i; zval *arg; if (argc < 0) { return FAILURE; } zend_fcall_info_args_clear(fci, !argc); if (argc) { fci->param_count = argc; fci->params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval)); for (i = 0; i < argc; ++i) { arg = va_arg(*argv, zval *); ZVAL_COPY(&fci->params[i], arg); } } return SUCCESS; } /* }}} */ ZEND_API int zend_fcall_info_argn(zend_fcall_info *fci, int argc, ...) /* {{{ */ { int ret; va_list argv; va_start(argv, argc); ret = zend_fcall_info_argv(fci, argc, &argv); va_end(argv); return ret; } /* }}} */ ZEND_API int zend_fcall_info_call(zend_fcall_info *fci, zend_fcall_info_cache *fcc, zval *retval_ptr, zval *args) /* {{{ */ { zval retval, *org_params = NULL; int result, org_count = 0; fci->retval = retval_ptr ? retval_ptr : &retval; if (args) { zend_fcall_info_args_save(fci, &org_count, &org_params); zend_fcall_info_args(fci, args); } result = zend_call_function(fci, fcc); if (!retval_ptr && Z_TYPE(retval) != IS_UNDEF) { zval_ptr_dtor(&retval); } if (args) { zend_fcall_info_args_restore(fci, org_count, org_params); } return result; } /* }}} */ ZEND_API const char *zend_get_module_version(const char *module_name) /* {{{ */ { zend_string *lname; size_t name_len = strlen(module_name); zend_module_entry *module; lname = zend_string_alloc(name_len, 0); zend_str_tolower_copy(ZSTR_VAL(lname), module_name, name_len); module = zend_hash_find_ptr(&module_registry, lname); zend_string_efree(lname); return module ? module->version : NULL; } /* }}} */ static inline zend_string *zval_make_interned_string(zval *zv) /* {{{ */ { ZEND_ASSERT(Z_TYPE_P(zv) == IS_STRING); Z_STR_P(zv) = zend_new_interned_string(Z_STR_P(zv)); if (ZSTR_IS_INTERNED(Z_STR_P(zv))) { Z_TYPE_FLAGS_P(zv) = 0; } return Z_STR_P(zv); } static zend_always_inline zend_bool is_persistent_class(zend_class_entry *ce) { return (ce->type & ZEND_INTERNAL_CLASS) && ce->info.internal.module->type == MODULE_PERSISTENT; } ZEND_API int zend_declare_typed_property(zend_class_entry *ce, zend_string *name, zval *property, int access_type, zend_string *doc_comment, zend_type type) /* {{{ */ { zend_property_info *property_info, *property_info_ptr; if (ZEND_TYPE_IS_SET(type)) { ce->ce_flags |= ZEND_ACC_HAS_TYPE_HINTS; } if (ce->type == ZEND_INTERNAL_CLASS) { property_info = pemalloc(sizeof(zend_property_info), 1); } else { property_info = zend_arena_alloc(&CG(arena), sizeof(zend_property_info)); if (Z_TYPE_P(property) == IS_CONSTANT_AST) { ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED; } } if (Z_TYPE_P(property) == IS_STRING && !ZSTR_IS_INTERNED(Z_STR_P(property))) { zval_make_interned_string(property); } if (!(access_type & ZEND_ACC_PPP_MASK)) { access_type |= ZEND_ACC_PUBLIC; } if (access_type & ZEND_ACC_STATIC) { if ((property_info_ptr = zend_hash_find_ptr(&ce->properties_info, name)) != NULL && (property_info_ptr->flags & ZEND_ACC_STATIC) != 0) { property_info->offset = property_info_ptr->offset; zval_ptr_dtor(&ce->default_static_members_table[property_info->offset]); zend_hash_del(&ce->properties_info, name); } else { property_info->offset = ce->default_static_members_count++; ce->default_static_members_table = perealloc(ce->default_static_members_table, sizeof(zval) * ce->default_static_members_count, ce->type == ZEND_INTERNAL_CLASS); } ZVAL_COPY_VALUE(&ce->default_static_members_table[property_info->offset], property); if (!ZEND_MAP_PTR(ce->static_members_table)) { ZEND_ASSERT(ce->type == ZEND_INTERNAL_CLASS); if (!EG(current_execute_data)) { ZEND_MAP_PTR_NEW(ce->static_members_table); } else { /* internal class loaded by dl() */ ZEND_MAP_PTR_INIT(ce->static_members_table, &ce->default_static_members_table); } } } else { zval *property_default_ptr; if ((property_info_ptr = zend_hash_find_ptr(&ce->properties_info, name)) != NULL && (property_info_ptr->flags & ZEND_ACC_STATIC) == 0) { property_info->offset = property_info_ptr->offset; zval_ptr_dtor(&ce->default_properties_table[OBJ_PROP_TO_NUM(property_info->offset)]); zend_hash_del(&ce->properties_info, name); ZEND_ASSERT(ce->type == ZEND_INTERNAL_CLASS); ZEND_ASSERT(ce->properties_info_table != NULL); ce->properties_info_table[OBJ_PROP_TO_NUM(property_info->offset)] = property_info; } else { property_info->offset = OBJ_PROP_TO_OFFSET(ce->default_properties_count); ce->default_properties_count++; ce->default_properties_table = perealloc(ce->default_properties_table, sizeof(zval) * ce->default_properties_count, ce->type == ZEND_INTERNAL_CLASS); /* For user classes this is handled during linking */ if (ce->type == ZEND_INTERNAL_CLASS) { ce->properties_info_table = perealloc(ce->properties_info_table, sizeof(zend_property_info *) * ce->default_properties_count, 1); ce->properties_info_table[ce->default_properties_count - 1] = property_info; } } property_default_ptr = &ce->default_properties_table[OBJ_PROP_TO_NUM(property_info->offset)]; ZVAL_COPY_VALUE(property_default_ptr, property); Z_PROP_FLAG_P(property_default_ptr) = Z_ISUNDEF_P(property) ? IS_PROP_UNINIT : 0; } if (ce->type & ZEND_INTERNAL_CLASS) { switch(Z_TYPE_P(property)) { case IS_ARRAY: case IS_OBJECT: case IS_RESOURCE: zend_error_noreturn(E_CORE_ERROR, "Internal zval's can't be arrays, objects or resources"); break; default: break; } /* Must be interned to avoid ZTS data races */ if (is_persistent_class(ce)) { name = zend_new_interned_string(zend_string_copy(name)); } } if (access_type & ZEND_ACC_PUBLIC) { property_info->name = zend_string_copy(name); } else if (access_type & ZEND_ACC_PRIVATE) { property_info->name = zend_mangle_property_name(ZSTR_VAL(ce->name), ZSTR_LEN(ce->name), ZSTR_VAL(name), ZSTR_LEN(name), is_persistent_class(ce)); } else { ZEND_ASSERT(access_type & ZEND_ACC_PROTECTED); property_info->name = zend_mangle_property_name("*", 1, ZSTR_VAL(name), ZSTR_LEN(name), is_persistent_class(ce)); } property_info->name = zend_new_interned_string(property_info->name); property_info->flags = access_type; property_info->doc_comment = doc_comment; property_info->ce = ce; property_info->type = type; zend_hash_update_ptr(&ce->properties_info, name, property_info); return SUCCESS; } /* }}} */ ZEND_API int zend_try_assign_typed_ref_ex(zend_reference *ref, zval *val, zend_bool strict) /* {{{ */ { if (UNEXPECTED(!zend_verify_ref_assignable_zval(ref, val, strict))) { zval_ptr_dtor(val); return FAILURE; } else { zval_ptr_dtor(&ref->val); ZVAL_COPY_VALUE(&ref->val, val); return SUCCESS; } } /* }}} */ ZEND_API int zend_try_assign_typed_ref(zend_reference *ref, zval *val) /* {{{ */ { return zend_try_assign_typed_ref_ex(ref, val, ZEND_ARG_USES_STRICT_TYPES()); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_null(zend_reference *ref) /* {{{ */ { zval tmp; ZVAL_NULL(&tmp); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_bool(zend_reference *ref, zend_bool val) /* {{{ */ { zval tmp; ZVAL_BOOL(&tmp, val); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_long(zend_reference *ref, zend_long lval) /* {{{ */ { zval tmp; ZVAL_LONG(&tmp, lval); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_double(zend_reference *ref, double dval) /* {{{ */ { zval tmp; ZVAL_DOUBLE(&tmp, dval); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_empty_string(zend_reference *ref) /* {{{ */ { zval tmp; ZVAL_EMPTY_STRING(&tmp); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_str(zend_reference *ref, zend_string *str) /* {{{ */ { zval tmp; ZVAL_STR(&tmp, str); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_string(zend_reference *ref, const char *string) /* {{{ */ { zval tmp; ZVAL_STRING(&tmp, string); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_stringl(zend_reference *ref, const char *string, size_t len) /* {{{ */ { zval tmp; ZVAL_STRINGL(&tmp, string, len); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_arr(zend_reference *ref, zend_array *arr) /* {{{ */ { zval tmp; ZVAL_ARR(&tmp, arr); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_res(zend_reference *ref, zend_resource *res) /* {{{ */ { zval tmp; ZVAL_RES(&tmp, res); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_zval(zend_reference *ref, zval *zv) /* {{{ */ { zval tmp; ZVAL_COPY_VALUE(&tmp, zv); return zend_try_assign_typed_ref(ref, &tmp); } /* }}} */ ZEND_API int zend_try_assign_typed_ref_zval_ex(zend_reference *ref, zval *zv, zend_bool strict) /* {{{ */ { zval tmp; ZVAL_COPY_VALUE(&tmp, zv); return zend_try_assign_typed_ref_ex(ref, &tmp, strict); } /* }}} */ ZEND_API int zend_declare_property_ex(zend_class_entry *ce, zend_string *name, zval *property, int access_type, zend_string *doc_comment) /* {{{ */ { return zend_declare_typed_property(ce, name, property, access_type, doc_comment, 0); } /* }}} */ ZEND_API int zend_declare_property(zend_class_entry *ce, const char *name, size_t name_length, zval *property, int access_type) /* {{{ */ { zend_string *key = zend_string_init(name, name_length, is_persistent_class(ce)); int ret = zend_declare_property_ex(ce, key, property, access_type, NULL); zend_string_release(key); return ret; } /* }}} */ ZEND_API int zend_declare_property_null(zend_class_entry *ce, const char *name, size_t name_length, int access_type) /* {{{ */ { zval property; ZVAL_NULL(&property); return zend_declare_property(ce, name, name_length, &property, access_type); } /* }}} */ ZEND_API int zend_declare_property_bool(zend_class_entry *ce, const char *name, size_t name_length, zend_long value, int access_type) /* {{{ */ { zval property; ZVAL_BOOL(&property, value); return zend_declare_property(ce, name, name_length, &property, access_type); } /* }}} */ ZEND_API int zend_declare_property_long(zend_class_entry *ce, const char *name, size_t name_length, zend_long value, int access_type) /* {{{ */ { zval property; ZVAL_LONG(&property, value); return zend_declare_property(ce, name, name_length, &property, access_type); } /* }}} */ ZEND_API int zend_declare_property_double(zend_class_entry *ce, const char *name, size_t name_length, double value, int access_type) /* {{{ */ { zval property; ZVAL_DOUBLE(&property, value); return zend_declare_property(ce, name, name_length, &property, access_type); } /* }}} */ ZEND_API int zend_declare_property_string(zend_class_entry *ce, const char *name, size_t name_length, const char *value, int access_type) /* {{{ */ { zval property; ZVAL_NEW_STR(&property, zend_string_init(value, strlen(value), ce->type & ZEND_INTERNAL_CLASS)); return zend_declare_property(ce, name, name_length, &property, access_type); } /* }}} */ ZEND_API int zend_declare_property_stringl(zend_class_entry *ce, const char *name, size_t name_length, const char *value, size_t value_len, int access_type) /* {{{ */ { zval property; ZVAL_NEW_STR(&property, zend_string_init(value, value_len, ce->type & ZEND_INTERNAL_CLASS)); return zend_declare_property(ce, name, name_length, &property, access_type); } /* }}} */ ZEND_API int zend_declare_class_constant_ex(zend_class_entry *ce, zend_string *name, zval *value, int access_type, zend_string *doc_comment) /* {{{ */ { zend_class_constant *c; if (ce->ce_flags & ZEND_ACC_INTERFACE) { if (access_type != ZEND_ACC_PUBLIC) { zend_error_noreturn(E_COMPILE_ERROR, "Access type for interface constant %s::%s must be public", ZSTR_VAL(ce->name), ZSTR_VAL(name)); } } if (zend_string_equals_literal_ci(name, "class")) { zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR, "A class constant must not be called 'class'; it is reserved for class name fetching"); } if (Z_TYPE_P(value) == IS_STRING && !ZSTR_IS_INTERNED(Z_STR_P(value))) { zval_make_interned_string(value); } if (ce->type == ZEND_INTERNAL_CLASS) { c = pemalloc(sizeof(zend_class_constant), 1); } else { c = zend_arena_alloc(&CG(arena), sizeof(zend_class_constant)); } ZVAL_COPY_VALUE(&c->value, value); Z_ACCESS_FLAGS(c->value) = access_type; c->doc_comment = doc_comment; c->ce = ce; if (Z_TYPE_P(value) == IS_CONSTANT_AST) { ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED; } if (!zend_hash_add_ptr(&ce->constants_table, name, c)) { zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR, "Cannot redefine class constant %s::%s", ZSTR_VAL(ce->name), ZSTR_VAL(name)); } return SUCCESS; } /* }}} */ ZEND_API int zend_declare_class_constant(zend_class_entry *ce, const char *name, size_t name_length, zval *value) /* {{{ */ { int ret; zend_string *key; if (ce->type == ZEND_INTERNAL_CLASS) { key = zend_string_init_interned(name, name_length, 1); } else { key = zend_string_init(name, name_length, 0); } ret = zend_declare_class_constant_ex(ce, key, value, ZEND_ACC_PUBLIC, NULL); zend_string_release(key); return ret; } /* }}} */ ZEND_API int zend_declare_class_constant_null(zend_class_entry *ce, const char *name, size_t name_length) /* {{{ */ { zval constant; ZVAL_NULL(&constant); return zend_declare_class_constant(ce, name, name_length, &constant); } /* }}} */ ZEND_API int zend_declare_class_constant_long(zend_class_entry *ce, const char *name, size_t name_length, zend_long value) /* {{{ */ { zval constant; ZVAL_LONG(&constant, value); return zend_declare_class_constant(ce, name, name_length, &constant); } /* }}} */ ZEND_API int zend_declare_class_constant_bool(zend_class_entry *ce, const char *name, size_t name_length, zend_bool value) /* {{{ */ { zval constant; ZVAL_BOOL(&constant, value); return zend_declare_class_constant(ce, name, name_length, &constant); } /* }}} */ ZEND_API int zend_declare_class_constant_double(zend_class_entry *ce, const char *name, size_t name_length, double value) /* {{{ */ { zval constant; ZVAL_DOUBLE(&constant, value); return zend_declare_class_constant(ce, name, name_length, &constant); } /* }}} */ ZEND_API int zend_declare_class_constant_stringl(zend_class_entry *ce, const char *name, size_t name_length, const char *value, size_t value_length) /* {{{ */ { zval constant; ZVAL_NEW_STR(&constant, zend_string_init(value, value_length, ce->type & ZEND_INTERNAL_CLASS)); return zend_declare_class_constant(ce, name, name_length, &constant); } /* }}} */ ZEND_API int zend_declare_class_constant_string(zend_class_entry *ce, const char *name, size_t name_length, const char *value) /* {{{ */ { return zend_declare_class_constant_stringl(ce, name, name_length, value, strlen(value)); } /* }}} */ ZEND_API void zend_update_property_ex(zend_class_entry *scope, zval *object, zend_string *name, zval *value) /* {{{ */ { zval property; zend_class_entry *old_scope = EG(fake_scope); EG(fake_scope) = scope; ZVAL_STR(&property, name); Z_OBJ_HT_P(object)->write_property(object, &property, value, NULL); EG(fake_scope) = old_scope; } /* }}} */ ZEND_API void zend_update_property(zend_class_entry *scope, zval *object, const char *name, size_t name_length, zval *value) /* {{{ */ { zval property; zend_class_entry *old_scope = EG(fake_scope); EG(fake_scope) = scope; ZVAL_STRINGL(&property, name, name_length); Z_OBJ_HT_P(object)->write_property(object, &property, value, NULL); zval_ptr_dtor(&property); EG(fake_scope) = old_scope; } /* }}} */ ZEND_API void zend_update_property_null(zend_class_entry *scope, zval *object, const char *name, size_t name_length) /* {{{ */ { zval tmp; ZVAL_NULL(&tmp); zend_update_property(scope, object, name, name_length, &tmp); } /* }}} */ ZEND_API void zend_unset_property(zend_class_entry *scope, zval *object, const char *name, size_t name_length) /* {{{ */ { zval property; zend_class_entry *old_scope = EG(fake_scope); EG(fake_scope) = scope; ZVAL_STRINGL(&property, name, name_length); Z_OBJ_HT_P(object)->unset_property(object, &property, 0); zval_ptr_dtor(&property); EG(fake_scope) = old_scope; } /* }}} */ ZEND_API void zend_update_property_bool(zend_class_entry *scope, zval *object, const char *name, size_t name_length, zend_long value) /* {{{ */ { zval tmp; ZVAL_BOOL(&tmp, value); zend_update_property(scope, object, name, name_length, &tmp); } /* }}} */ ZEND_API void zend_update_property_long(zend_class_entry *scope, zval *object, const char *name, size_t name_length, zend_long value) /* {{{ */ { zval tmp; ZVAL_LONG(&tmp, value); zend_update_property(scope, object, name, name_length, &tmp); } /* }}} */ ZEND_API void zend_update_property_double(zend_class_entry *scope, zval *object, const char *name, size_t name_length, double value) /* {{{ */ { zval tmp; ZVAL_DOUBLE(&tmp, value); zend_update_property(scope, object, name, name_length, &tmp); } /* }}} */ ZEND_API void zend_update_property_str(zend_class_entry *scope, zval *object, const char *name, size_t name_length, zend_string *value) /* {{{ */ { zval tmp; ZVAL_STR(&tmp, value); zend_update_property(scope, object, name, name_length, &tmp); } /* }}} */ ZEND_API void zend_update_property_string(zend_class_entry *scope, zval *object, const char *name, size_t name_length, const char *value) /* {{{ */ { zval tmp; ZVAL_STRING(&tmp, value); Z_SET_REFCOUNT(tmp, 0); zend_update_property(scope, object, name, name_length, &tmp); } /* }}} */ ZEND_API void zend_update_property_stringl(zend_class_entry *scope, zval *object, const char *name, size_t name_length, const char *value, size_t value_len) /* {{{ */ { zval tmp; ZVAL_STRINGL(&tmp, value, value_len); Z_SET_REFCOUNT(tmp, 0); zend_update_property(scope, object, name, name_length, &tmp); } /* }}} */ ZEND_API int zend_update_static_property_ex(zend_class_entry *scope, zend_string *name, zval *value) /* {{{ */ { zval *property, tmp; zend_property_info *prop_info; zend_class_entry *old_scope = EG(fake_scope); if (UNEXPECTED(!(scope->ce_flags & ZEND_ACC_CONSTANTS_UPDATED))) { if (UNEXPECTED(zend_update_class_constants(scope)) != SUCCESS) { return FAILURE; } } EG(fake_scope) = scope; property = zend_std_get_static_property_with_info(scope, name, BP_VAR_W, &prop_info); EG(fake_scope) = old_scope; if (!property) { return FAILURE; } ZEND_ASSERT(!Z_ISREF_P(value)); Z_TRY_ADDREF_P(value); if (prop_info->type) { ZVAL_COPY_VALUE(&tmp, value); if (!zend_verify_property_type(prop_info, &tmp, /* strict */ 0)) { Z_TRY_DELREF_P(value); return FAILURE; } value = &tmp; } zend_assign_to_variable(property, value, IS_TMP_VAR, /* strict */ 0); return SUCCESS; } /* }}} */ ZEND_API int zend_update_static_property(zend_class_entry *scope, const char *name, size_t name_length, zval *value) /* {{{ */ { zend_string *key = zend_string_init(name, name_length, 0); int retval = zend_update_static_property_ex(scope, key, value); zend_string_efree(key); return retval; } /* }}} */ ZEND_API int zend_update_static_property_null(zend_class_entry *scope, const char *name, size_t name_length) /* {{{ */ { zval tmp; ZVAL_NULL(&tmp); return zend_update_static_property(scope, name, name_length, &tmp); } /* }}} */ ZEND_API int zend_update_static_property_bool(zend_class_entry *scope, const char *name, size_t name_length, zend_long value) /* {{{ */ { zval tmp; ZVAL_BOOL(&tmp, value); return zend_update_static_property(scope, name, name_length, &tmp); } /* }}} */ ZEND_API int zend_update_static_property_long(zend_class_entry *scope, const char *name, size_t name_length, zend_long value) /* {{{ */ { zval tmp; ZVAL_LONG(&tmp, value); return zend_update_static_property(scope, name, name_length, &tmp); } /* }}} */ ZEND_API int zend_update_static_property_double(zend_class_entry *scope, const char *name, size_t name_length, double value) /* {{{ */ { zval tmp; ZVAL_DOUBLE(&tmp, value); return zend_update_static_property(scope, name, name_length, &tmp); } /* }}} */ ZEND_API int zend_update_static_property_string(zend_class_entry *scope, const char *name, size_t name_length, const char *value) /* {{{ */ { zval tmp; ZVAL_STRING(&tmp, value); Z_SET_REFCOUNT(tmp, 0); return zend_update_static_property(scope, name, name_length, &tmp); } /* }}} */ ZEND_API int zend_update_static_property_stringl(zend_class_entry *scope, const char *name, size_t name_length, const char *value, size_t value_len) /* {{{ */ { zval tmp; ZVAL_STRINGL(&tmp, value, value_len); Z_SET_REFCOUNT(tmp, 0); return zend_update_static_property(scope, name, name_length, &tmp); } /* }}} */ ZEND_API zval *zend_read_property_ex(zend_class_entry *scope, zval *object, zend_string *name, zend_bool silent, zval *rv) /* {{{ */ { zval property, *value; zend_class_entry *old_scope = EG(fake_scope); EG(fake_scope) = scope; ZVAL_STR(&property, name); value = Z_OBJ_HT_P(object)->read_property(object, &property, silent?BP_VAR_IS:BP_VAR_R, NULL, rv); EG(fake_scope) = old_scope; return value; } /* }}} */ ZEND_API zval *zend_read_property(zend_class_entry *scope, zval *object, const char *name, size_t name_length, zend_bool silent, zval *rv) /* {{{ */ { zval *value; zend_string *str; str = zend_string_init(name, name_length, 0); value = zend_read_property_ex(scope, object, str, silent, rv); zend_string_release_ex(str, 0); return value; } /* }}} */ ZEND_API zval *zend_read_static_property_ex(zend_class_entry *scope, zend_string *name, zend_bool silent) /* {{{ */ { zval *property; zend_class_entry *old_scope = EG(fake_scope); EG(fake_scope) = scope; property = zend_std_get_static_property(scope, name, silent ? BP_VAR_IS : BP_VAR_R); EG(fake_scope) = old_scope; return property; } /* }}} */ ZEND_API zval *zend_read_static_property(zend_class_entry *scope, const char *name, size_t name_length, zend_bool silent) /* {{{ */ { zend_string *key = zend_string_init(name, name_length, 0); zval *property = zend_read_static_property_ex(scope, key, silent); zend_string_efree(key); return property; } /* }}} */ ZEND_API void zend_save_error_handling(zend_error_handling *current) /* {{{ */ { current->handling = EG(error_handling); current->exception = EG(exception_class); ZVAL_UNDEF(¤t->user_handler); } /* }}} */ ZEND_API void zend_replace_error_handling(zend_error_handling_t error_handling, zend_class_entry *exception_class, zend_error_handling *current) /* {{{ */ { if (current) { zend_save_error_handling(current); } ZEND_ASSERT(error_handling == EH_THROW || exception_class == NULL); EG(error_handling) = error_handling; EG(exception_class) = exception_class; } /* }}} */ ZEND_API void zend_restore_error_handling(zend_error_handling *saved) /* {{{ */ { EG(error_handling) = saved->handling; EG(exception_class) = saved->exception; } /* }}} */ ZEND_API zend_string* zend_find_alias_name(zend_class_entry *ce, zend_string *name) /* {{{ */ { zend_trait_alias *alias, **alias_ptr; if ((alias_ptr = ce->trait_aliases)) { alias = *alias_ptr; while (alias) { if (alias->alias && zend_string_equals_ci(alias->alias, name)) { return alias->alias; } alias_ptr++; alias = *alias_ptr; } } return name; } /* }}} */ ZEND_API zend_string *zend_resolve_method_name(zend_class_entry *ce, zend_function *f) /* {{{ */ { zend_function *func; HashTable *function_table; zend_string *name; if (f->common.type != ZEND_USER_FUNCTION || (f->op_array.refcount && *(f->op_array.refcount) < 2) || !f->common.scope || !f->common.scope->trait_aliases) { return f->common.function_name; } function_table = &ce->function_table; ZEND_HASH_FOREACH_STR_KEY_PTR(function_table, name, func) { if (func == f) { if (!name) { return f->common.function_name; } if (ZSTR_LEN(name) == ZSTR_LEN(f->common.function_name) && !strncasecmp(ZSTR_VAL(name), ZSTR_VAL(f->common.function_name), ZSTR_LEN(f->common.function_name))) { return f->common.function_name; } return zend_find_alias_name(f->common.scope, name); } } ZEND_HASH_FOREACH_END(); return f->common.function_name; } /* }}} */ ZEND_API ZEND_COLD const char *zend_get_object_type(const zend_class_entry *ce) /* {{{ */ { if(ce->ce_flags & ZEND_ACC_TRAIT) { return "trait"; } else if (ce->ce_flags & ZEND_ACC_INTERFACE) { return "interface"; } else { return "class"; } } /* }}} */ ZEND_API zend_bool zend_is_iterable(zval *iterable) /* {{{ */ { switch (Z_TYPE_P(iterable)) { case IS_ARRAY: return 1; case IS_OBJECT: return instanceof_function(Z_OBJCE_P(iterable), zend_ce_traversable); default: return 0; } } /* }}} */ ZEND_API zend_bool zend_is_countable(zval *countable) /* {{{ */ { switch (Z_TYPE_P(countable)) { case IS_ARRAY: return 1; case IS_OBJECT: if (Z_OBJ_HT_P(countable)->count_elements) { return 1; } return instanceof_function(Z_OBJCE_P(countable), zend_ce_countable); default: return 0; } } /* }}} */