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Pr/5803 #6122

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c237c9d
Warning to Error promotion in MySQLi extension
Girgias Jul 3, 2020
06d12d2
Improve errors for mysqli_stmt_attr_set()
Girgias Jul 3, 2020
c5d2437
Remove scoping
Girgias Jul 7, 2020
6c491a6
Debug output
Girgias Jul 7, 2020
3cdb2ae
Drop test about invalid bool value for attr
Girgias Jul 9, 2020
ba76901
Revert "Drop test about invalid bool value for attr"
Girgias Jul 20, 2020
274690f
Revert "Remove scoping"
Girgias Jul 20, 2020
66fbf07
Nit from review
Girgias Aug 3, 2020
bacb9ee
Fix stubs param name
Girgias Aug 23, 2020
3e4c560
Attempt to fix stmt_attr_set
Girgias Aug 23, 2020
136d275
Tweaks again to attr_set
Girgias Sep 3, 2020
e8be193
Maybe fix?
Girgias Sep 11, 2020
16d965c
Nit
Girgias Sep 11, 2020
26cdc04
Restore original error condition
Girgias Sep 12, 2020
2bf4864
Switch out of bounds warnings to exceptions in mysqli
kamil-tekiela Sep 13, 2020
cdc7d84
Reverting back earlier changes.
kamil-tekiela Sep 13, 2020
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14 changes: 9 additions & 5 deletions ext/mysqli/mysqli.c
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Original file line number Diff line number Diff line change
Expand Up @@ -384,8 +384,7 @@ static int mysqli_object_has_property(zend_object *object, zend_string *name, in
}
break;
}
default:
php_error_docref(NULL, E_WARNING, "Invalid value for has_set_exists");
EMPTY_SWITCH_DEFAULT_CASE();
}
} else {
ret = zend_std_has_property(object, name, has_set_exists, cache_slot);
Expand Down Expand Up @@ -1025,6 +1024,11 @@ PHP_METHOD(mysqli_result, __construct)
RETURN_THROWS();
}

if (resmode != MYSQLI_STORE_RESULT && resmode != MYSQLI_USE_RESULT) {
zend_argument_value_error(2, "must be MYSQLI_STORE_RESULT or MYSQLI_USE_RESULT");
RETURN_THROWS();
}

MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

switch (resmode) {
Expand All @@ -1034,8 +1038,7 @@ PHP_METHOD(mysqli_result, __construct)
case MYSQLI_USE_RESULT:
result = mysql_use_result(mysql->mysql);
break;
default:
php_error_docref(NULL, E_WARNING, "Invalid value for resultmode");
EMPTY_SWITCH_DEFAULT_CASE();
}

if (!result) {
Expand All @@ -1052,7 +1055,7 @@ PHP_METHOD(mysqli_result, __construct)
PHP_METHOD(mysqli_result, getIterator)
{
if (zend_parse_parameters_none() == FAILURE) {
return;
RETURN_THROWS();
}

zend_create_internal_iterator_zval(return_value, ZEND_THIS);
Expand Down Expand Up @@ -1130,6 +1133,7 @@ void php_mysqli_fetch_into_hash_aux(zval *return_value, MYSQL_RES * result, zend
}
/* }}} */

/* TODO Split this up */
/* {{{ php_mysqli_fetch_into_hash */
void php_mysqli_fetch_into_hash(INTERNAL_FUNCTION_PARAMETERS, int override_flags, int into_object)
{
Expand Down
10 changes: 5 additions & 5 deletions ext/mysqli/mysqli.stub.php
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Original file line number Diff line number Diff line change
Expand Up @@ -164,7 +164,7 @@ public function prepare(string $query) {}
* @return mysqli_result|bool
* @alias mysqli_query
*/
public function query(string $query, int $resultmode = MYSQLI_STORE_RESULT) {}
public function query(string $query, int $result_mode = MYSQLI_STORE_RESULT) {}

/**
* @return bool
Expand Down Expand Up @@ -301,7 +301,7 @@ public function refresh(int $options) {}

class mysqli_result implements IteratorAggregate
{
public function __construct(object $mysqli_link, int $resmode = MYSQLI_STORE_RESULT) {}
public function __construct(object $mysqli_link, int $result_mode = MYSQLI_STORE_RESULT) {}

/**
* @return void
Expand Down Expand Up @@ -421,7 +421,7 @@ public function bind_result(mixed &...$vars) {}
public function close() {}

/**
* @return bool|null
* @return void
* @alias mysqli_stmt_data_seek
*/
public function data_seek(int $offset) {}
Expand Down Expand Up @@ -641,7 +641,7 @@ function mysqli_prepare(mysqli $mysqli_link, string $query): mysqli_stmt|false {

function mysqli_report(int $flags): bool {}

function mysqli_query(mysqli $mysqli_link, string $query, int $resultmode = MYSQLI_STORE_RESULT): mysqli_result|bool {}
function mysqli_query(mysqli $mysqli_link, string $query, int $result_mode = MYSQLI_STORE_RESULT): mysqli_result|bool {}

function mysqli_real_connect(
mysqli $mysqli_link,
Expand Down Expand Up @@ -672,7 +672,7 @@ function mysqli_set_charset(mysqli $mysqli_link, string $charset): bool {}

function mysqli_stmt_affected_rows(mysqli_stmt $mysql_stmt): int|string {}

function mysqli_stmt_attr_get(mysqli_stmt $mysql_stmt, int $attr): int|false {}
function mysqli_stmt_attr_get(mysqli_stmt $mysql_stmt, int $attr): int {}

function mysqli_stmt_attr_set(mysqli_stmt $mysql_stmt, int $attr, int $mode_in): bool {}

Expand Down
134 changes: 102 additions & 32 deletions ext/mysqli/mysqli_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@
#include "mysqli_priv.h"
#include "ext/mysqlnd/mysql_float_to_double.h"

#define ERROR_ARG_POS(arg_num) (getThis() ? (arg_num-1) : (arg_num))


#ifndef MYSQLI_USE_MYSQLND
/* {{{ mysqli_tx_cor_options_to_string */
Expand Down Expand Up @@ -324,19 +326,19 @@ PHP_FUNCTION(mysqli_stmt_bind_param)
MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

if (!types_len) {
php_error_docref(NULL, E_WARNING, "Invalid type or no types specified");
RETURN_FALSE;
zend_argument_value_error(ERROR_ARG_POS(2), "cannot be empty");
RETURN_THROWS();
}

if (types_len != (size_t) argc) {
/* number of bind variables doesn't match number of elements in type definition string */
php_error_docref(NULL, E_WARNING, "Number of elements in type definition string doesn't match number of bind variables");
RETURN_FALSE;
zend_argument_count_error("Number of elements in type definition string doesn't match number of bind variables");
RETURN_THROWS();
}

if (types_len != mysql_stmt_param_count(stmt->stmt)) {
php_error_docref(NULL, E_WARNING, "Number of variables doesn't match number of parameters in prepared statement");
RETURN_FALSE;
zend_argument_count_error("Number of variables doesn't match number of parameters in prepared statement");
RETURN_THROWS();
}

RETVAL_BOOL(!mysqli_stmt_bind_param_do_bind(stmt, argc, args, types, getThis() ? 1 : 2));
Expand Down Expand Up @@ -557,8 +559,8 @@ PHP_FUNCTION(mysqli_stmt_bind_result)
MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

if ((uint32_t)argc != mysql_stmt_field_count(stmt->stmt)) {
php_error_docref(NULL, E_WARNING, "Number of bind variables doesn't match number of fields in prepared statement");
RETURN_FALSE;
zend_argument_count_error("Number of bind variables doesn't match number of fields in prepared statement");
RETURN_THROWS();
}

rc = mysqli_stmt_bind_result_do_bind(stmt, args, argc);
Expand Down Expand Up @@ -729,14 +731,20 @@ PHP_FUNCTION(mysqli_data_seek)
RETURN_THROWS();
}

if (offset < 0) {
zend_argument_value_error(ERROR_ARG_POS(2), "must be greater than or equal to 0");
RETURN_THROWS();
}

MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

if (mysqli_result_is_unbuffered(result)) {
php_error_docref(NULL, E_WARNING, "Function cannot be used with MYSQL_USE_RESULT");
RETURN_FALSE;
zend_throw_error(NULL, "Function cannot be used in MYSQLI_USE_RESULT mode");
RETURN_THROWS();
}

if (offset < 0 || (uint64_t)offset >= mysql_num_rows(result)) {
if ((uint64_t)offset >= mysql_num_rows(result)) {
// TODO Warning/Exception?
RETURN_FALSE;
}

Expand Down Expand Up @@ -1181,9 +1189,15 @@ PHP_FUNCTION(mysqli_fetch_field_direct)
RETURN_THROWS();
}

if (offset < 0) {
zend_argument_value_error(ERROR_ARG_POS(2), "must be greater than or equal to 0");
RETURN_THROWS();
}

MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

if (offset < 0 || offset >= (zend_long) mysql_num_fields(result)) {
if (offset >= (zend_long) mysql_num_fields(result)) {
// TODO ValueError?
php_error_docref(NULL, E_WARNING, "Field offset is invalid for resultset");
RETURN_FALSE;
}
Expand Down Expand Up @@ -1215,6 +1229,7 @@ PHP_FUNCTION(mysqli_fetch_lengths)

MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

// TODO Warning?
if (!(ret = mysql_fetch_lengths(result))) {
RETURN_FALSE;
}
Expand Down Expand Up @@ -1260,9 +1275,16 @@ PHP_FUNCTION(mysqli_field_seek)
if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &mysql_result, mysqli_result_class_entry, &fieldnr) == FAILURE) {
RETURN_THROWS();
}

if (fieldnr < 0) {
zend_argument_value_error(ERROR_ARG_POS(2), "must be greater than or equal to 0");
RETURN_THROWS();
}

MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

if (fieldnr < 0 || (uint32_t)fieldnr >= mysql_num_fields(result)) {
if ((uint32_t)fieldnr >= mysql_num_fields(result)) {
// TODO ValueError?
php_error_docref(NULL, E_WARNING, "Invalid field offset");
RETURN_FALSE;
}
Expand Down Expand Up @@ -1499,13 +1521,14 @@ PHP_FUNCTION(mysqli_kill)
if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &mysql_link, mysqli_link_class_entry, &processid) == FAILURE) {
RETURN_THROWS();
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

if (processid <= 0) {
php_error_docref(NULL, E_WARNING, "processid should have positive value");
RETURN_FALSE;
zend_argument_value_error(ERROR_ARG_POS(2), "must be greater than 0");
RETURN_THROWS();
}

MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

if (mysql_kill(mysql->mysql, processid)) {
MYSQLI_REPORT_MYSQL_ERROR(mysql->mysql);
RETURN_FALSE;
Expand Down Expand Up @@ -1601,8 +1624,8 @@ PHP_FUNCTION(mysqli_num_rows)
MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

if (mysqli_result_is_unbuffered_and_not_everything_is_fetched(result)) {
php_error_docref(NULL, E_WARNING, "Function cannot be used with MYSQL_USE_RESULT");
RETURN_LONG(0);
zend_throw_error(NULL, "Function cannot be used in MYSQLI_USE_RESULT mode");
RETURN_THROWS();
}

MYSQLI_RETURN_LONG_INT(mysql_num_rows(result));
Expand Down Expand Up @@ -1922,12 +1945,14 @@ PHP_FUNCTION(mysqli_stmt_send_long_data)
if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ols", &mysql_stmt, mysqli_stmt_class_entry, &param_nr, &data, &data_len) == FAILURE) {
RETURN_THROWS();
}

MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

if (param_nr < 0) {
php_error_docref(NULL, E_WARNING, "Invalid parameter number");
RETURN_FALSE;
zend_argument_value_error(ERROR_ARG_POS(2), "must be greater than or equal to 0");
RETURN_THROWS();
}

if (mysql_stmt_send_long_data(stmt->stmt, param_nr, data, data_len)) {
RETURN_FALSE;
}
Expand Down Expand Up @@ -1984,9 +2009,10 @@ PHP_FUNCTION(mysqli_stmt_data_seek)
if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &mysql_stmt, mysqli_stmt_class_entry, &offset) == FAILURE) {
RETURN_THROWS();
}

if (offset < 0) {
php_error_docref(NULL, E_WARNING, "Offset must be positive");
RETURN_FALSE;
zend_argument_value_error(ERROR_ARG_POS(2), "must be greater than or equal to 0");
RETURN_THROWS();
}

MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);
Expand Down Expand Up @@ -2227,23 +2253,51 @@ PHP_FUNCTION(mysqli_stmt_attr_set)
}
MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

if (mode_in < 0) {
php_error_docref(NULL, E_WARNING, "Mode should be non-negative, " ZEND_LONG_FMT " passed", mode_in);
RETURN_FALSE;
}

switch (attr) {
#if MYSQL_VERSION_ID >= 50107
case STMT_ATTR_UPDATE_MAX_LENGTH:
if (mode_in < 0) {
zend_argument_value_error(ERROR_ARG_POS(3), "must be 0 or 1 for attribute MYSQLI_STMT_ATTR_UPDATE_MAX_LENGTH");
RETURN_THROWS();
}
mode_b = (my_bool) mode_in;
mode_p = &mode_b;
break;
#endif
default:
case STMT_ATTR_CURSOR_TYPE: {
switch (mode_in) {
case CURSOR_TYPE_NO_CURSOR:
case CURSOR_TYPE_READ_ONLY:
case CURSOR_TYPE_FOR_UPDATE:
case CURSOR_TYPE_SCROLLABLE:
break;
default:
zend_argument_value_error(ERROR_ARG_POS(3), "must be one of MYSQLI_CURSOR_TYPE_NO_CURSOR, "
"MYSQLI_CURSOR_TYPE_READ_ONLY, MYSQLI_CURSOR_TYPE_FOR_UPDATE, or MYSQLI_CURSOR_TYPE_SCROLLABLE "
"for attribute MYSQLI_STMT_ATTR_CURSOR_TYPE");
RETURN_THROWS();
}
mode = mode_in;
mode_p = &mode;
break;
}
case STMT_ATTR_PREFETCH_ROWS:
if (mode_in < 1) {
zend_argument_value_error(ERROR_ARG_POS(3), "must be greater than 0 for attribute MYSQLI_STMT_ATTR_PREFETCH_ROWS");
RETURN_THROWS();
}
mode = mode_in;
mode_p = &mode;
break;
default:
zend_argument_value_error(ERROR_ARG_POS(2), "must be one of "
#if MYSQL_VERSION_ID >= 50107
"MYSQLI_STMT_ATTR_UPDATE_MAX_LENGTH, "
#endif
"MYSQLI_STMT_ATTR_PREFETCH_ROWS, or STMT_ATTR_CURSOR_TYPE");
RETURN_THROWS();
}

#ifndef MYSQLI_USE_MYSQLND
if (mysql_stmt_attr_set(stmt->stmt, attr, mode_p)) {
#else
Expand All @@ -2262,20 +2316,36 @@ PHP_FUNCTION(mysqli_stmt_attr_get)
zval *mysql_stmt;
unsigned long value = 0;
zend_long attr;
int rc;

if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &mysql_stmt, mysqli_stmt_class_entry, &attr) == FAILURE) {
RETURN_THROWS();
}
MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

if ((rc = mysql_stmt_attr_get(stmt->stmt, attr, &value))) {
RETURN_FALSE;
switch (attr) {
#if MYSQL_VERSION_ID >= 50107
case STMT_ATTR_UPDATE_MAX_LENGTH:
#endif
case STMT_ATTR_CURSOR_TYPE:
case STMT_ATTR_PREFETCH_ROWS:
break;
default:
zend_argument_value_error(ERROR_ARG_POS(2), "must be one of "
#if MYSQL_VERSION_ID >= 50107
"MYSQLI_STMT_ATTR_UPDATE_MAX_LENGTH, "
#endif
"MYSQLI_STMT_ATTR_PREFETCH_ROWS, or STMT_ATTR_CURSOR_TYPE");
RETURN_THROWS();
}

/* Success corresponds to 0 return value and a non-zero value
* should only happen if the attr/option is unknown */
ZEND_ASSERT(mysql_stmt_attr_get(stmt->stmt, attr, &value) == 0);

#if MYSQL_VERSION_ID >= 50107
if (attr == STMT_ATTR_UPDATE_MAX_LENGTH)
if (attr == STMT_ATTR_UPDATE_MAX_LENGTH) {
value = *((my_bool *)&value);
}
#endif
RETURN_LONG((unsigned long)value);
}
Expand Down
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