/**
* sets privilege information extracted from SHOW GRANTS result
*
* Detection for some CREATE privilege.
*
* Since MySQL 4.1.2, we can easily detect current user's grants using $userlink
* (no control user needed) and we don't have to try any other method for
* detection
*
* @todo fix to get really all privileges, not only explicitly defined for this user
* from MySQL manual: (http://dev.mysql.com/doc/refman/5.0/en/show-grants.html)
* SHOW GRANTS displays only the privileges granted explicitly to the named
* account. Other privileges might be available to the account, but they are not
* displayed. For example, if an anonymous account exists, the named account
* might be able to use its privileges, but SHOW GRANTS will not display them.
*
* @return void
*/
function PMA_analyseShowGrant()
{
if (PMA\libraries\Util::cacheExists('is_create_db_priv')) {
$GLOBALS['is_create_db_priv'] = PMA\libraries\Util::cacheGet('is_create_db_priv');
$GLOBALS['is_reload_priv'] = PMA\libraries\Util::cacheGet('is_reload_priv');
$GLOBALS['db_to_create'] = PMA\libraries\Util::cacheGet('db_to_create');
$GLOBALS['dbs_where_create_table_allowed'] = PMA\libraries\Util::cacheGet('dbs_where_create_table_allowed');
$GLOBALS['dbs_to_test'] = PMA\libraries\Util::cacheGet('dbs_to_test');
$GLOBALS['db_priv'] = PMA\libraries\Util::cacheGet('db_priv');
$GLOBALS['col_priv'] = PMA\libraries\Util::cacheGet('col_priv');
$GLOBALS['table_priv'] = PMA\libraries\Util::cacheGet('table_priv');
$GLOBALS['proc_priv'] = PMA\libraries\Util::cacheGet('proc_priv');
return;
}
// defaults
$GLOBALS['is_create_db_priv'] = false;
$GLOBALS['is_reload_priv'] = false;
$GLOBALS['db_to_create'] = '';
$GLOBALS['dbs_where_create_table_allowed'] = array();
$GLOBALS['dbs_to_test'] = $GLOBALS['dbi']->getSystemSchemas();
$GLOBALS['proc_priv'] = false;
$GLOBALS['db_priv'] = false;
$GLOBALS['col_priv'] = false;
$GLOBALS['table_priv'] = false;
$rs_usr = $GLOBALS['dbi']->tryQuery('SHOW GRANTS');
if (!$rs_usr) {
return;
}
$re0 = '(^|(\\\\\\\\)+|[^\\\\])';
// non-escaped wildcards
$re1 = '(^|[^\\\\])(\\\\)+';
// escaped wildcards
while ($row = $GLOBALS['dbi']->fetchRow($rs_usr)) {
list($show_grants_str, $show_grants_dbname, $show_grants_tblname) = PMA_getItemsFromShowGrantsRow($row[0]);
if ($show_grants_dbname == '*') {
if ($show_grants_str != 'USAGE') {
$GLOBALS['dbs_to_test'] = false;
}
} elseif ($GLOBALS['dbs_to_test'] !== false) {
$GLOBALS['dbs_to_test'][] = $show_grants_dbname;
}
if (mb_strpos($show_grants_str, 'RELOAD') !== false) {
$GLOBALS['is_reload_priv'] = true;
}
// check for the required privileges for adjust
PMA_checkRequiredPrivilegesForAdjust($show_grants_str, $show_grants_dbname, $show_grants_tblname);
/**
* @todo if we find CREATE VIEW but not CREATE, do not offer
* the create database dialog box
*/
if ($show_grants_str == 'ALL' || $show_grants_str == 'ALL PRIVILEGES' || $show_grants_str == 'CREATE' || strpos($show_grants_str, 'CREATE,') !== false) {
if ($show_grants_dbname == '*') {
// a global CREATE privilege
$GLOBALS['is_create_db_priv'] = true;
$GLOBALS['is_reload_priv'] = true;
$GLOBALS['db_to_create'] = '';
$GLOBALS['dbs_where_create_table_allowed'][] = '*';
// @todo we should not break here, cause GRANT ALL *.*
// could be revoked by a later rule like GRANT SELECT ON db.*
break;
} else {
// this array may contain wildcards
$GLOBALS['dbs_where_create_table_allowed'][] = $show_grants_dbname;
$dbname_to_test = PMA\libraries\Util::backquote($show_grants_dbname);
if ($GLOBALS['is_create_db_priv']) {
// no need for any more tests if we already know this
continue;
}
// does this db exist?
if (preg_match('/' . $re0 . '%|_/', $show_grants_dbname) && !preg_match('/\\\\%|\\\\_/', $show_grants_dbname) || !$GLOBALS['dbi']->tryQuery('USE ' . preg_replace('/' . $re1 . '(%|_)/', '\\1\\3', $dbname_to_test)) && mb_substr($GLOBALS['dbi']->getError(), 1, 4) != 1044) {
/**
* Do not handle the underscore wildcard
* (this case must be rare anyway)
*/
$GLOBALS['db_to_create'] = preg_replace('/' . $re0 . '%/', '\\1', $show_grants_dbname);
$GLOBALS['db_to_create'] = preg_replace('/' . $re1 . '(%|_)/', '\\1\\3', $GLOBALS['db_to_create']);
$GLOBALS['is_create_db_priv'] = true;
/**
* @todo collect $GLOBALS['db_to_create'] into an array,
* to display a drop-down in the "Create database" dialog
*/
// we don't break, we want all possible databases
//break;
}
// end if
}
// end elseif
}
// end if
}
// end while
$GLOBALS['dbi']->freeResult($rs_usr);
// must also cacheUnset() them in
// libraries/plugins/auth/AuthenticationCookie.php
PMA\libraries\Util::cacheSet('is_create_db_priv', $GLOBALS['is_create_db_priv']);
PMA\libraries\Util::cacheSet('is_reload_priv', $GLOBALS['is_reload_priv']);
PMA\libraries\Util::cacheSet('db_to_create', $GLOBALS['db_to_create']);
PMA\libraries\Util::cacheSet('dbs_where_create_table_allowed', $GLOBALS['dbs_where_create_table_allowed']);
PMA\libraries\Util::cacheSet('dbs_to_test', $GLOBALS['dbs_to_test']);
PMA\libraries\Util::cacheSet('proc_priv', $GLOBALS['proc_priv']);
PMA\libraries\Util::cacheSet('table_priv', $GLOBALS['table_priv']);
PMA\libraries\Util::cacheSet('col_priv', $GLOBALS['col_priv']);
PMA\libraries\Util::cacheSet('db_priv', $GLOBALS['db_priv']);
}
$GLOBALS['dbi']->freeResult($rs_usr);
// must also cacheUnset() them in
// libraries/plugins/auth/AuthenticationCookie.php
PMA\libraries\Util::cacheSet('is_create_db_priv', $GLOBALS['is_create_db_priv']);
PMA\libraries\Util::cacheSet('is_reload_priv', $GLOBALS['is_reload_priv']);
PMA\libraries\Util::cacheSet('db_to_create', $GLOBALS['db_to_create']);
PMA\libraries\Util::cacheSet('dbs_where_create_table_allowed', $GLOBALS['dbs_where_create_table_allowed']);
PMA\libraries\Util::cacheSet('dbs_to_test', $GLOBALS['dbs_to_test']);
}
// end function
$user = $GLOBALS['dbi']->fetchValue("SELECT CURRENT_USER();");
if ($user == '@') {
// MySQL is started with --skip-grant-tables
$GLOBALS['is_create_db_priv'] = true;
$GLOBALS['is_reload_priv'] = true;
$GLOBALS['db_to_create'] = '';
$GLOBALS['dbs_where_create_table_allowed'] = array('*');
$GLOBALS['dbs_to_test'] = false;
$GLOBALS['flush_priv'] = true;
$GLOBALS['db_priv'] = true;
$GLOBALS['col_priv'] = true;
$GLOBALS['table_priv'] = true;
$GLOBALS['proc_priv'] = true;
} else {
PMA_analyseShowGrant();
// Check if privileges to 'mysql'.col_privs, 'mysql'.db,
// 'mysql'.table_privs, 'mysql'.proc_privs and privileges for
// flushing the privileges are available
PMA_checkRequiredPrivilegesForFlushing();
PMA_checkRequiredPrivilegesForAdjust();
}
/**
* Test for PMA_checkRequiredPrivilegesForAdjust
*
* @return void
*/
public function testCheckRequiredPrivilegesForAdjust()
{
// TEST CASE 1
$show_grants_full_row = "GRANT ALL PRIVILEGES ON *.* " . "TO 'root'@'localhost' WITH GRANT OPTION";
list($show_grants_str, $show_grants_dbname, $show_grants_tblname) = PMA_getItemsFromShowGrantsRow($show_grants_full_row);
// call the to-be-tested function
PMA_checkRequiredPrivilegesForAdjust($show_grants_str, $show_grants_dbname, $show_grants_tblname);
$this->assertEquals(true, $GLOBALS['col_priv']);
$this->assertEquals(true, $GLOBALS['db_priv']);
$this->assertEquals(true, $GLOBALS['proc_priv']);
$this->assertEquals(true, $GLOBALS['table_priv']);
// re-initialise the privileges
$this->setUp();
// TEST CASE 2
$show_grants_full_row = "GRANT ALL PRIVILEGES ON `mysql`.* TO " . "'root'@'localhost' WITH GRANT OPTION";
list($show_grants_str, $show_grants_dbname, $show_grants_tblname) = PMA_getItemsFromShowGrantsRow($show_grants_full_row);
// call the to-be-tested function
PMA_checkRequiredPrivilegesForAdjust($show_grants_str, $show_grants_dbname, $show_grants_tblname);
$this->assertEquals(true, $GLOBALS['col_priv']);
$this->assertEquals(true, $GLOBALS['db_priv']);
$this->assertEquals(true, $GLOBALS['proc_priv']);
$this->assertEquals(true, $GLOBALS['table_priv']);
// re-initialise the privileges
$this->setUp();
// TEST CASE 3
$show_grants_full_row = "GRANT SELECT, INSERT, UPDATE, DELETE ON " . "`mysql`.* TO 'root'@'localhost'";
list($show_grants_str, $show_grants_dbname, $show_grants_tblname) = PMA_getItemsFromShowGrantsRow($show_grants_full_row);
// call the to-be-tested function
PMA_checkRequiredPrivilegesForAdjust($show_grants_str, $show_grants_dbname, $show_grants_tblname);
$this->assertEquals(true, $GLOBALS['col_priv']);
$this->assertEquals(true, $GLOBALS['db_priv']);
$this->assertEquals(true, $GLOBALS['proc_priv']);
$this->assertEquals(true, $GLOBALS['table_priv']);
// re-initialise the privileges
$this->setUp();
// TEST CASE 4
$show_grants_full_row = "GRANT SELECT, INSERT, UPDATE, DELETE ON " . "`mysql`.`db` TO 'root'@'localhost'";
list($show_grants_str, $show_grants_dbname, $show_grants_tblname) = PMA_getItemsFromShowGrantsRow($show_grants_full_row);
// call the to-be-tested function
PMA_checkRequiredPrivilegesForAdjust($show_grants_str, $show_grants_dbname, $show_grants_tblname);
$this->assertEquals(false, $GLOBALS['col_priv']);
$this->assertEquals(true, $GLOBALS['db_priv']);
$this->assertEquals(false, $GLOBALS['proc_priv']);
$this->assertEquals(false, $GLOBALS['table_priv']);
}