/* {{{ proto Closure Closure::bind(callable old, object to [, mixed scope])
Create a closure from another one and bind to another object and scope */
ZEND_METHOD(Closure, bind)
{
zval *newthis, *zclosure, *scope_arg = NULL;
zend_closure *closure, *new_closure;
zend_class_entry *ce, *called_scope;
if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Oo!|z", &zclosure, zend_ce_closure, &newthis, &scope_arg) == FAILURE) {
RETURN_NULL();
}
closure = (zend_closure *)Z_OBJ_P(zclosure);
if ((newthis != NULL) && (closure->func.common.fn_flags & ZEND_ACC_STATIC)) {
zend_error(E_WARNING, "Cannot bind an instance to a static closure");
}
if (scope_arg != NULL) { /* scope argument was given */
if (Z_TYPE_P(scope_arg) == IS_OBJECT) {
ce = Z_OBJCE_P(scope_arg);
} else if (Z_TYPE_P(scope_arg) == IS_NULL) {
ce = NULL;
} else {
zend_string *class_name = zval_get_string(scope_arg);
if (zend_string_equals_literal(class_name, "static")) {
ce = closure->func.common.scope;
} else if ((ce = zend_lookup_class_ex(class_name, NULL, 1)) == NULL) {
zend_error(E_WARNING, "Class '%s' not found", ZSTR_VAL(class_name));
zend_string_release(class_name);
RETURN_NULL();
}
zend_string_release(class_name);
}
if(ce && ce != closure->func.common.scope && ce->type == ZEND_INTERNAL_CLASS) {
/* rebinding to internal class is not allowed */
zend_error(E_WARNING, "Cannot bind closure to scope of internal class %s", ZSTR_VAL(ce->name));
return;
}
} else { /* scope argument not given; do not change the scope by default */
ce = closure->func.common.scope;
}
if (newthis) {
called_scope = Z_OBJCE_P(newthis);
} else {
called_scope = ce;
}
zend_create_closure(return_value, &closure->func, ce, called_scope, newthis);
new_closure = (zend_closure *) Z_OBJ_P(return_value);
/* Runtime cache relies on bound scope to be immutable, hence we need a separate rt cache in case scope changed */
if (ZEND_USER_CODE(closure->func.type) && (closure->func.common.scope != new_closure->func.common.scope || (closure->func.op_array.fn_flags & ZEND_ACC_NO_RT_ARENA))) {
new_closure->func.op_array.run_time_cache = emalloc(new_closure->func.op_array.cache_size);
memset(new_closure->func.op_array.run_time_cache, 0, new_closure->func.op_array.cache_size);
new_closure->func.op_array.fn_flags |= ZEND_ACC_NO_RT_ARENA;
}
}
static zend_function *zend_closure_get_method(zend_object **object, zend_string *method, const zval *key) /* {{{ */
{
zend_string *lc_name;
lc_name = zend_string_tolower(method);
if (zend_string_equals_literal(method, ZEND_INVOKE_FUNC_NAME)) {
zend_string_release(lc_name);
return zend_get_closure_invoke_method(*object);
}
zend_string_release(lc_name);
return std_object_handlers.get_method(object, method, key);
}
/* {{{ proto Closure Closure::bind(Closure $old, object $to [, mixed $scope = "static" ] )
Create a closure from another one and bind to another object and scope */
ZEND_METHOD(Closure, bind)
{
zval *newthis, *zclosure, *scope_arg = NULL;
zend_closure *closure;
zend_class_entry *ce, *called_scope;
if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Oo!|z", &zclosure, zend_ce_closure, &newthis, &scope_arg) == FAILURE) {
RETURN_NULL();
}
closure = (zend_closure *)Z_OBJ_P(zclosure);
if ((newthis != NULL) && (closure->func.common.fn_flags & ZEND_ACC_STATIC)) {
zend_error(E_WARNING, "Cannot bind an instance to a static closure");
}
if (scope_arg != NULL) { /* scope argument was given */
if (Z_TYPE_P(scope_arg) == IS_OBJECT) {
ce = Z_OBJCE_P(scope_arg);
} else if (Z_TYPE_P(scope_arg) == IS_NULL) {
ce = NULL;
} else {
zend_string *class_name = zval_get_string(scope_arg);
if (zend_string_equals_literal(class_name, "static")) {
ce = closure->func.common.scope;
} else if ((ce = zend_lookup_class_ex(class_name, NULL, 1)) == NULL) {
zend_error(E_WARNING, "Class '%s' not found", class_name->val);
zend_string_release(class_name);
RETURN_NULL();
}
zend_string_release(class_name);
}
if(ce && ce != closure->func.common.scope && ce->type == ZEND_INTERNAL_CLASS) {
/* rebinding to internal class is not allowed */
zend_error(E_WARNING, "Cannot bind closure to scope of internal class %s", ce->name->val);
return;
}
} else { /* scope argument not given; do not change the scope by default */
ce = closure->func.common.scope;
}
if (newthis) {
called_scope = Z_OBJCE_P(newthis);
} else {
called_scope = ce;
}
zend_create_closure(return_value, &closure->func, ce, called_scope, newthis);
}
ZEND_API int zend_register_constant(zend_constant *c)
{
zend_string *lowercase_name = NULL;
zend_string *name;
int ret = SUCCESS;
#if 0
printf("Registering constant for module %d\n", c->module_number);
#endif
if (!(c->flags & CONST_CS)) {
lowercase_name = zend_string_tolower_ex(c->name, c->flags & CONST_PERSISTENT);
lowercase_name = zend_new_interned_string(lowercase_name);
name = lowercase_name;
} else {
char *slash = strrchr(ZSTR_VAL(c->name), '\\');
if (slash) {
lowercase_name = zend_string_init(ZSTR_VAL(c->name), ZSTR_LEN(c->name), c->flags & CONST_PERSISTENT);
zend_str_tolower(ZSTR_VAL(lowercase_name), slash - ZSTR_VAL(c->name));
lowercase_name = zend_new_interned_string(lowercase_name);
name = lowercase_name;
} else {
name = c->name;
}
}
/* Check if the user is trying to define the internal pseudo constant name __COMPILER_HALT_OFFSET__ */
if (zend_string_equals_literal(name, "__COMPILER_HALT_OFFSET__")
|| zend_hash_add_constant(EG(zend_constants), name, c) == NULL) {
/* The internal __COMPILER_HALT_OFFSET__ is prefixed by NULL byte */
if (ZSTR_VAL(c->name)[0] == '\0' && ZSTR_LEN(c->name) > sizeof("\0__COMPILER_HALT_OFFSET__")-1
&& memcmp(ZSTR_VAL(name), "\0__COMPILER_HALT_OFFSET__", sizeof("\0__COMPILER_HALT_OFFSET__")) == 0) {
}
zend_error(E_NOTICE,"Constant %s already defined", ZSTR_VAL(name));
zend_string_release(c->name);
if (!(c->flags & CONST_PERSISTENT)) {
zval_ptr_dtor_nogc(&c->value);
}
ret = FAILURE;
}
if (lowercase_name) {
zend_string_release(lowercase_name);
}
return ret;
}
/* {{{ proto Closure Closure::bind(callable old, object to [, mixed scope])
Create a closure from another one and bind to another object and scope */
ZEND_METHOD(Closure, bind)
{
zval *newthis, *zclosure, *scope_arg = NULL;
zend_closure *closure;
zend_class_entry *ce, *called_scope;
if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Oo!|z", &zclosure, zend_ce_closure, &newthis, &scope_arg) == FAILURE) {
return;
}
closure = (zend_closure *)Z_OBJ_P(zclosure);
if (scope_arg != NULL) { /* scope argument was given */
if (Z_TYPE_P(scope_arg) == IS_OBJECT) {
ce = Z_OBJCE_P(scope_arg);
} else if (Z_TYPE_P(scope_arg) == IS_NULL) {
ce = NULL;
} else {
zend_string *tmp_class_name;
zend_string *class_name = zval_get_tmp_string(scope_arg, &tmp_class_name);
if (zend_string_equals_literal(class_name, "static")) {
ce = closure->func.common.scope;
} else if ((ce = zend_lookup_class_ex(class_name, NULL, 1)) == NULL) {
zend_error(E_WARNING, "Class '%s' not found", ZSTR_VAL(class_name));
zend_string_release_ex(class_name, 0);
RETURN_NULL();
}
zend_tmp_string_release(tmp_class_name);
}
} else { /* scope argument not given; do not change the scope by default */
ce = closure->func.common.scope;
}
if (!zend_valid_closure_binding(closure, newthis, ce)) {
return;
}
if (newthis) {
called_scope = Z_OBJCE_P(newthis);
} else {
called_scope = ce;
}
zend_create_closure(return_value, &closure->func, ce, called_scope, newthis);
}
/* {{{ proto Closure Closure::bind(Closure $old, object $to [, mixed $scope = "static" ] )
Create a closure from another one and bind to another object and scope */
ZEND_METHOD(Closure, bind)
{
zval *newthis, *zclosure, *scope_arg = NULL;
zend_closure *closure;
zend_class_entry *ce;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Oo!|z", &zclosure, zend_ce_closure, &newthis, &scope_arg) == FAILURE) {
RETURN_NULL();
}
closure = (zend_closure *)Z_OBJ_P(zclosure);
if ((newthis != NULL) && (closure->func.common.fn_flags & ZEND_ACC_STATIC)) {
zend_error(E_WARNING, "Cannot bind an instance to a static closure");
}
if (scope_arg != NULL) { /* scope argument was given */
if (IS_ZEND_STD_OBJECT(*scope_arg)) {
ce = Z_OBJCE_P(scope_arg);
} else if (Z_TYPE_P(scope_arg) == IS_NULL) {
ce = NULL;
} else {
zend_string *class_name = zval_get_string(scope_arg);
if (zend_string_equals_literal(class_name, "static")) {
ce = closure->func.common.scope;
} else if ((ce = zend_lookup_class_ex(class_name, NULL, 1 TSRMLS_CC)) == NULL) {
zend_error(E_WARNING, "Class '%s' not found", class_name->val);
zend_string_release(class_name);
RETURN_NULL();
}
zend_string_release(class_name);
}
} else { /* scope argument not given; do not change the scope by default */
ce = closure->func.common.scope;
}
zend_create_closure(return_value, &closure->func, ce, newthis TSRMLS_CC);
}
ZEND_API int zend_register_constant(zend_constant *c)
{
zend_string *lowercase_name = NULL;
zend_string *name;
int ret = SUCCESS;
zend_bool persistent = (ZEND_CONSTANT_FLAGS(c) & CONST_PERSISTENT) != 0;
#if 0
printf("Registering constant for module %d\n", c->module_number);
#endif
char *slash = strrchr(ZSTR_VAL(c->name), '\\');
if (slash) {
lowercase_name = zend_string_init(ZSTR_VAL(c->name), ZSTR_LEN(c->name), persistent);
zend_str_tolower(ZSTR_VAL(lowercase_name), slash - ZSTR_VAL(c->name));
lowercase_name = zend_new_interned_string(lowercase_name);
name = lowercase_name;
} else {
name = c->name;
}
/* Check if the user is trying to define any special constant */
if (zend_string_equals_literal(name, "__COMPILER_HALT_OFFSET__")
|| (!persistent && zend_get_special_const(ZSTR_VAL(name), ZSTR_LEN(name)))
|| zend_hash_add_constant(EG(zend_constants), name, c) == NULL
) {
zend_error(E_NOTICE,"Constant %s already defined", ZSTR_VAL(name));
zend_string_release(c->name);
if (!persistent) {
zval_ptr_dtor_nogc(&c->value);
}
ret = FAILURE;
}
if (lowercase_name) {
zend_string_release(lowercase_name);
}
return ret;
}
php_http_message_parser_state_t php_http_message_parser_parse(php_http_message_parser_t *parser, php_http_buffer_t *buffer, unsigned flags, php_http_message_t **message)
{
char *str = NULL;
size_t len = 0;
size_t cut = 0;
while (buffer->used || !php_http_message_parser_states[php_http_message_parser_state_is(parser)].need_data) {
#if DBG_PARSER
fprintf(stderr, "#MP: %s (f: %u, t:%d, l:%zu)\n",
php_http_message_parser_state_name(php_http_message_parser_state_is(parser)),
flags,
message && *message ? (*message)->type : -1,
buffer->used
);
_dpf(0, buffer->data, buffer->used);
#endif
switch (php_http_message_parser_state_pop(parser))
{
case PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE:
return php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE);
case PHP_HTTP_MESSAGE_PARSER_STATE_START:
{
char *ptr = buffer->data;
while (ptr - buffer->data < buffer->used && PHP_HTTP_IS_CTYPE(space, *ptr)) {
++ptr;
}
php_http_buffer_cut(buffer, 0, ptr - buffer->data);
if (buffer->used) {
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_HEADER);
}
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_HEADER:
{
unsigned header_parser_flags = (flags & PHP_HTTP_MESSAGE_PARSER_CLEANUP) ? PHP_HTTP_HEADER_PARSER_CLEANUP : 0;
switch (php_http_header_parser_parse(&parser->header, buffer, header_parser_flags, *message ? &(*message)->hdrs : NULL, (php_http_info_callback_t) php_http_message_info_callback, message)) {
case PHP_HTTP_HEADER_PARSER_STATE_FAILURE:
return PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE;
case PHP_HTTP_HEADER_PARSER_STATE_DONE:
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_HEADER_DONE);
break;
default:
if (buffer->used || !(flags & PHP_HTTP_MESSAGE_PARSER_CLEANUP)) {
return php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_HEADER);
} else {
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_HEADER_DONE);
}
}
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_HEADER_DONE:
{
zval h, *h_ptr, *h_loc = NULL, *h_con = NULL, *h_ce;
zend_bool chunked = 0;
zend_long content_length = -1;
zend_string *content_range = NULL;
/* Content-Range has higher precedence than Content-Length,
* and content-length denotes the original length of the entity,
* so let's *NOT* remove CR/CL, because that would fundamentally
* change the meaning of the whole message
*/
if ((h_ptr = php_http_message_header(*message, ZEND_STRL("Transfer-Encoding")))) {
zend_string *zs = zval_get_string(h_ptr);
chunked = zend_string_equals_literal(zs, "chunked");
zend_string_release(zs);
Z_TRY_ADDREF_P(h_ptr);
zend_hash_str_update(&(*message)->hdrs, "X-Original-Transfer-Encoding", lenof("X-Original-Transfer-Encoding"), h_ptr);
zend_hash_str_del(&(*message)->hdrs, "Transfer-Encoding", lenof("Transfer-Encoding"));
/* reset */
ZVAL_LONG(&h, 0);
zend_hash_str_update(&(*message)->hdrs, "Content-Length", lenof("Content-Length"), &h);
} else if ((h_ptr = php_http_message_header(*message, ZEND_STRL("Content-Length")))) {
content_length = zval_get_long(h_ptr);
Z_TRY_ADDREF_P(h_ptr);
zend_hash_str_update(&(*message)->hdrs, "X-Original-Content-Length", lenof("X-Original-Content-Length"), h_ptr);
}
if ((content_range = php_http_message_header_string(*message, ZEND_STRL("Content-Range")))) {
ZVAL_STR_COPY(&h, content_range);
zend_hash_str_update(&(*message)->hdrs, "Content-Range", lenof("Content-Range"), &h);
}
/* so, if curl sees a 3xx code, a Location header and a Connection:close header
* it decides not to read the response body.
*/
if ((flags & PHP_HTTP_MESSAGE_PARSER_EMPTY_REDIRECTS)
&& (*message)->type == PHP_HTTP_RESPONSE
&& (*message)->http.info.response.code/100 == 3
&& (h_loc = php_http_message_header(*message, ZEND_STRL("Location")))
&& (h_con = php_http_message_header(*message, ZEND_STRL("Connection")))
) {
zend_string *con = zval_get_string(h_con);
if (php_http_match(con->val, "close", PHP_HTTP_MATCH_WORD)) {
zend_string_release(con);
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_DONE);
break;
}
zend_string_release(con);
}
if ((h_ce = php_http_message_header(*message, ZEND_STRL("Content-Encoding")))) {
zend_string *ce = zval_get_string(h_ce);
if (php_http_match(ce->val, "gzip", PHP_HTTP_MATCH_WORD)
|| php_http_match(ce->val, "x-gzip", PHP_HTTP_MATCH_WORD)
|| php_http_match(ce->val, "deflate", PHP_HTTP_MATCH_WORD)
) {
if (parser->inflate) {
php_http_encoding_stream_reset(&parser->inflate);
} else {
parser->inflate = php_http_encoding_stream_init(NULL, php_http_encoding_stream_get_inflate_ops(), 0);
}
Z_TRY_ADDREF_P(h_ce);
zend_hash_str_update(&(*message)->hdrs, "X-Original-Content-Encoding", lenof("X-Original-Content-Encoding"), h_ce);
zend_hash_str_del(&(*message)->hdrs, "Content-Encoding", lenof("Content-Encoding"));
}
zend_string_release(ce);
}
if ((flags & PHP_HTTP_MESSAGE_PARSER_DUMB_BODIES)) {
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DUMB);
} else {
if (chunked) {
parser->dechunk = php_http_encoding_stream_init(parser->dechunk, php_http_encoding_stream_get_dechunk_ops(), 0);
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_CHUNKED);
break;
}
if (content_range) {
ulong total = 0, start = 0, end = 0;
if (!strncasecmp(content_range->val, "bytes", lenof("bytes"))
&& ( content_range->val[lenof("bytes")] == ':'
|| content_range->val[lenof("bytes")] == ' '
|| content_range->val[lenof("bytes")] == '='
)
) {
char *total_at = NULL, *end_at = NULL;
char *start_at = content_range->val + sizeof("bytes");
start = strtoul(start_at, &end_at, 10);
if (end_at) {
end = strtoul(end_at + 1, &total_at, 10);
if (total_at && strncmp(total_at + 1, "*", 1)) {
total = strtoul(total_at + 1, NULL, 10);
}
if (end >= start && (!total || end <= total)) {
parser->body_length = end + 1 - start;
php_http_message_parser_state_push(parser, 1, !parser->body_length?PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH);
zend_string_release(content_range);
break;
}
}
}
zend_string_release(content_range);
}
if (content_length >= 0) {
parser->body_length = content_length;
php_http_message_parser_state_push(parser, 1, !parser->body_length?PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH);
break;
}
if ((*message)->type == PHP_HTTP_REQUEST) {
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_DONE);
} else {
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DUMB);
}
}
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_BODY:
{
if (len) {
if (parser->inflate) {
char *dec_str = NULL;
size_t dec_len;
if (SUCCESS != php_http_encoding_stream_update(parser->inflate, str, len, &dec_str, &dec_len)) {
return php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE);
}
if (str != buffer->data) {
PTR_FREE(str);
}
str = dec_str;
len = dec_len;
}
php_stream_write(php_http_message_body_stream((*message)->body), str, len);
}
if (cut) {
php_http_buffer_cut(buffer, 0, cut);
}
if (str != buffer->data) {
PTR_FREE(str);
}
str = NULL;
len = 0;
cut = 0;
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DUMB:
{
str = buffer->data;
len = buffer->used;
cut = len;
php_http_message_parser_state_push(parser, 2, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE, PHP_HTTP_MESSAGE_PARSER_STATE_BODY);
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH:
{
len = MIN(parser->body_length, buffer->used);
str = buffer->data;
cut = len;
parser->body_length -= len;
php_http_message_parser_state_push(parser, 2, !parser->body_length?PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH, PHP_HTTP_MESSAGE_PARSER_STATE_BODY);
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_BODY_CHUNKED:
{
/*
* - pass available data through the dechunk stream
* - pass decoded data along
* - if stream zeroed:
* Y: - cut processed string out of buffer, but leave length of unprocessed dechunk stream data untouched
* - body done
* N: - parse ahaed
*/
char *dec_str = NULL;
size_t dec_len;
if (SUCCESS != php_http_encoding_stream_update(parser->dechunk, buffer->data, buffer->used, &dec_str, &dec_len)) {
return PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE;
}
str = dec_str;
len = dec_len;
if (php_http_encoding_stream_done(parser->dechunk)) {
cut = buffer->used - PHP_HTTP_BUFFER(parser->dechunk->ctx)->used;
php_http_message_parser_state_push(parser, 2, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE, PHP_HTTP_MESSAGE_PARSER_STATE_BODY);
} else {
cut = buffer->used;
php_http_message_parser_state_push(parser, 2, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_CHUNKED, PHP_HTTP_MESSAGE_PARSER_STATE_BODY);
}
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:
{
php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_DONE);
if (parser->dechunk && parser->dechunk->ctx) {
char *dec_str = NULL;
size_t dec_len;
if (SUCCESS != php_http_encoding_stream_finish(parser->dechunk, &dec_str, &dec_len)) {
return php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE);
}
php_http_encoding_stream_dtor(parser->dechunk);
if (dec_str && dec_len) {
str = dec_str;
len = dec_len;
cut = 0;
php_http_message_parser_state_push(parser, 2, PHP_HTTP_MESSAGE_PARSER_STATE_UPDATE_CL, PHP_HTTP_MESSAGE_PARSER_STATE_BODY);
}
}
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_UPDATE_CL:
{
zval zcl;
ZVAL_LONG(&zcl, php_http_message_body_size((*message)->body));
zend_hash_str_update(&(*message)->hdrs, "Content-Length", lenof("Content-Length"), &zcl);
break;
}
case PHP_HTTP_MESSAGE_PARSER_STATE_DONE:
{
char *ptr = buffer->data;
while (ptr - buffer->data < buffer->used && PHP_HTTP_IS_CTYPE(space, *ptr)) {
++ptr;
}
php_http_buffer_cut(buffer, 0, ptr - buffer->data);
if (!(flags & PHP_HTTP_MESSAGE_PARSER_GREEDY)) {
return PHP_HTTP_MESSAGE_PARSER_STATE_DONE;
}
break;
}
}
}
return php_http_message_parser_state_is(parser);
}
int zend_build_cfg(zend_arena **arena, const zend_op_array *op_array, uint32_t build_flags, zend_cfg *cfg, uint32_t *func_flags) /* {{{ */
{
uint32_t flags = 0;
uint32_t i;
int j;
uint32_t *block_map;
zend_function *fn;
int blocks_count = 0;
zend_basic_block *blocks;
zval *zv;
cfg->map = block_map = zend_arena_calloc(arena, op_array->last, sizeof(uint32_t));
if (!block_map) {
return FAILURE;
}
/* Build CFG, Step 1: Find basic blocks starts, calculate number of blocks */
BB_START(0);
for (i = 0; i < op_array->last; i++) {
zend_op *opline = op_array->opcodes + i;
switch(opline->opcode) {
case ZEND_RETURN:
case ZEND_RETURN_BY_REF:
case ZEND_GENERATOR_RETURN:
case ZEND_EXIT:
case ZEND_THROW:
if (i + 1 < op_array->last) {
BB_START(i + 1);
}
break;
case ZEND_INCLUDE_OR_EVAL:
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
case ZEND_YIELD:
case ZEND_YIELD_FROM:
if (build_flags & ZEND_CFG_STACKLESS) {
BB_START(i + 1);
}
break;
case ZEND_DO_FCALL:
case ZEND_DO_UCALL:
case ZEND_DO_FCALL_BY_NAME:
flags |= ZEND_FUNC_HAS_CALLS;
if (build_flags & ZEND_CFG_STACKLESS) {
BB_START(i + 1);
}
break;
case ZEND_DO_ICALL:
flags |= ZEND_FUNC_HAS_CALLS;
break;
case ZEND_INIT_FCALL:
case ZEND_INIT_NS_FCALL_BY_NAME:
zv = CRT_CONSTANT(opline->op2);
if (opline->opcode == ZEND_INIT_NS_FCALL_BY_NAME) {
/* The third literal is the lowercased unqualified name */
zv += 2;
}
if ((fn = zend_hash_find_ptr(EG(function_table), Z_STR_P(zv))) != NULL) {
if (fn->type == ZEND_INTERNAL_FUNCTION) {
if (zend_string_equals_literal(Z_STR_P(zv), "extract")) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
} else if (zend_string_equals_literal(Z_STR_P(zv), "compact")) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
} else if (zend_string_equals_literal(Z_STR_P(zv), "parse_str") &&
opline->extended_value == 1) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
} else if (zend_string_equals_literal(Z_STR_P(zv), "mb_parse_str") &&
opline->extended_value == 1) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
} else if (zend_string_equals_literal(Z_STR_P(zv), "get_defined_vars")) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
} else if (zend_string_equals_literal(Z_STR_P(zv), "func_num_args")) {
flags |= ZEND_FUNC_VARARG;
} else if (zend_string_equals_literal(Z_STR_P(zv), "func_get_arg")) {
flags |= ZEND_FUNC_VARARG;
} else if (zend_string_equals_literal(Z_STR_P(zv), "func_get_args")) {
flags |= ZEND_FUNC_VARARG;
}
}
}
break;
case ZEND_FAST_CALL:
BB_START(OP_JMP_ADDR(opline, opline->op1) - op_array->opcodes);
BB_START(i + 1);
break;
case ZEND_FAST_RET:
if (i + 1 < op_array->last) {
BB_START(i + 1);
}
break;
case ZEND_JMP:
BB_START(OP_JMP_ADDR(opline, opline->op1) - op_array->opcodes);
if (i + 1 < op_array->last) {
BB_START(i + 1);
}
break;
case ZEND_JMPZNZ:
BB_START(OP_JMP_ADDR(opline, opline->op2) - op_array->opcodes);
BB_START(ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value));
if (i + 1 < op_array->last) {
BB_START(i + 1);
}
break;
case ZEND_JMPZ:
case ZEND_JMPNZ:
case ZEND_JMPZ_EX:
case ZEND_JMPNZ_EX:
case ZEND_JMP_SET:
case ZEND_COALESCE:
case ZEND_ASSERT_CHECK:
BB_START(OP_JMP_ADDR(opline, opline->op2) - op_array->opcodes);
BB_START(i + 1);
break;
case ZEND_CATCH:
if (!opline->result.num) {
BB_START(ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value));
}
BB_START(i + 1);
break;
case ZEND_DECLARE_ANON_CLASS:
case ZEND_DECLARE_ANON_INHERITED_CLASS:
case ZEND_FE_FETCH_R:
case ZEND_FE_FETCH_RW:
BB_START(ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value));
BB_START(i + 1);
break;
case ZEND_FE_RESET_R:
case ZEND_FE_RESET_RW:
case ZEND_NEW:
BB_START(OP_JMP_ADDR(opline, opline->op2) - op_array->opcodes);
BB_START(i + 1);
break;
case ZEND_UNSET_VAR:
case ZEND_ISSET_ISEMPTY_VAR:
if (((opline->extended_value & ZEND_FETCH_TYPE_MASK) == ZEND_FETCH_LOCAL) &&
!(opline->extended_value & ZEND_QUICK_SET)) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
} else if (((opline->extended_value & ZEND_FETCH_TYPE_MASK) == ZEND_FETCH_GLOBAL ||
(opline->extended_value & ZEND_FETCH_TYPE_MASK) == ZEND_FETCH_GLOBAL_LOCK) &&
!op_array->function_name) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
}
break;
case ZEND_FETCH_R:
case ZEND_FETCH_W:
case ZEND_FETCH_RW:
case ZEND_FETCH_FUNC_ARG:
case ZEND_FETCH_IS:
case ZEND_FETCH_UNSET:
if ((opline->extended_value & ZEND_FETCH_TYPE_MASK) == ZEND_FETCH_LOCAL) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
} else if (((opline->extended_value & ZEND_FETCH_TYPE_MASK) == ZEND_FETCH_GLOBAL ||
(opline->extended_value & ZEND_FETCH_TYPE_MASK) == ZEND_FETCH_GLOBAL_LOCK) &&
!op_array->function_name) {
flags |= ZEND_FUNC_INDIRECT_VAR_ACCESS;
}
break;
}
}
for (j = 0; j < op_array->last_live_range; j++) {
BB_START(op_array->live_range[j].start);
BB_START(op_array->live_range[j].end);
}
if (op_array->last_try_catch) {
for (j = 0; j < op_array->last_try_catch; j++) {
BB_START(op_array->try_catch_array[j].try_op);
if (op_array->try_catch_array[j].catch_op) {
BB_START(op_array->try_catch_array[j].catch_op);
}
if (op_array->try_catch_array[j].finally_op) {
BB_START(op_array->try_catch_array[j].finally_op);
}
if (op_array->try_catch_array[j].finally_end) {
BB_START(op_array->try_catch_array[j].finally_end);
}
}
}
cfg->blocks_count = blocks_count;
/* Build CFG, Step 2: Build Array of Basic Blocks */
cfg->blocks = blocks = zend_arena_calloc(arena, sizeof(zend_basic_block), blocks_count);
if (!blocks) {
return FAILURE;
}
for (i = 0, blocks_count = -1; i < op_array->last; i++) {
if (block_map[i]) {
if (blocks_count >= 0) {
blocks[blocks_count].end = i - 1;
}
blocks_count++;
blocks[blocks_count].flags = 0;
blocks[blocks_count].start = i;
blocks[blocks_count].successors[0] = -1;
blocks[blocks_count].successors[1] = -1;
blocks[blocks_count].predecessors_count = 0;
blocks[blocks_count].predecessor_offset = -1;
blocks[blocks_count].idom = -1;
blocks[blocks_count].loop_header = -1;
blocks[blocks_count].level = -1;
blocks[blocks_count].children = -1;
blocks[blocks_count].next_child = -1;
block_map[i] = blocks_count;
} else {
block_map[i] = (uint32_t)-1;
}
}
blocks[blocks_count].end = i - 1;
blocks_count++;
/* Build CFG, Step 3: Calculate successors */
for (j = 0; j < blocks_count; j++) {
zend_op *opline = op_array->opcodes + blocks[j].end;
switch(opline->opcode) {
case ZEND_FAST_RET:
case ZEND_RETURN:
case ZEND_RETURN_BY_REF:
case ZEND_GENERATOR_RETURN:
case ZEND_EXIT:
case ZEND_THROW:
break;
case ZEND_JMP:
record_successor(blocks, j, 0, block_map[OP_JMP_ADDR(opline, opline->op1) - op_array->opcodes]);
break;
case ZEND_JMPZNZ:
record_successor(blocks, j, 0, block_map[OP_JMP_ADDR(opline, opline->op2) - op_array->opcodes]);
record_successor(blocks, j, 1, block_map[ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value)]);
break;
case ZEND_JMPZ:
case ZEND_JMPNZ:
case ZEND_JMPZ_EX:
case ZEND_JMPNZ_EX:
case ZEND_JMP_SET:
case ZEND_COALESCE:
case ZEND_ASSERT_CHECK:
record_successor(blocks, j, 0, block_map[OP_JMP_ADDR(opline, opline->op2) - op_array->opcodes]);
record_successor(blocks, j, 1, j + 1);
break;
case ZEND_CATCH:
if (!opline->result.num) {
record_successor(blocks, j, 0, block_map[ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value)]);
record_successor(blocks, j, 1, j + 1);
} else {
record_successor(blocks, j, 0, j + 1);
}
break;
case ZEND_DECLARE_ANON_CLASS:
case ZEND_DECLARE_ANON_INHERITED_CLASS:
case ZEND_FE_FETCH_R:
case ZEND_FE_FETCH_RW:
record_successor(blocks, j, 0, block_map[ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value)]);
record_successor(blocks, j, 1, j + 1);
break;
case ZEND_FE_RESET_R:
case ZEND_FE_RESET_RW:
case ZEND_NEW:
record_successor(blocks, j, 0, block_map[OP_JMP_ADDR(opline, opline->op2) - op_array->opcodes]);
record_successor(blocks, j, 1, j + 1);
break;
case ZEND_FAST_CALL:
record_successor(blocks, j, 0, block_map[OP_JMP_ADDR(opline, opline->op1) - op_array->opcodes]);
record_successor(blocks, j, 1, j + 1);
break;
default:
record_successor(blocks, j, 0, j + 1);
break;
}
}
/* Build CFG, Step 4, Mark Reachable Basic Blocks */
zend_mark_reachable_blocks(op_array, cfg, 0);
if (func_flags) {
*func_flags |= flags;
}
return SUCCESS;
}
