100 lines
4.1 KiB
PHP
100 lines
4.1 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Get user's global privileges and some db-specific privileges
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* ($controllink and $userlink are links to MySQL defined in the "common.inc.php" library)
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* Note: if no controluser is defined, $controllink contains $userlink
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*
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* @version $Id$
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*/
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/**
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*
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*/
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$is_create_db_priv = false;
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$is_process_priv = true;
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$is_reload_priv = false;
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$db_to_create = '';
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$dbs_where_create_table_allowed = array();
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// We were trying to find if user if superuser with 'USE mysql'
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// but users with the global priv CREATE TEMPORARY TABLES or LOCK TABLES
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// can do a 'USE mysql' (even if they cannot see the tables)
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$is_superuser = PMA_isSuperuser();
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function PMA_analyseShowGrant($rs_usr, &$is_create_db_priv, &$db_to_create, &$is_reload_priv, &$dbs_where_create_table_allowed)
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{
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$re0 = '(^|(\\\\\\\\)+|[^\])'; // non-escaped wildcards
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$re1 = '(^|[^\])(\\\)+'; // escaped wildcards
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while ($row = PMA_DBI_fetch_row($rs_usr)) {
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$show_grants_dbname = substr($row[0], strpos($row[0], ' ON ') + 4, (strpos($row[0], '.', strpos($row[0], ' ON ')) - strpos($row[0], ' ON ') - 4));
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$show_grants_dbname = ereg_replace('^`(.*)`', '\\1', $show_grants_dbname);
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$show_grants_str = substr($row[0], 6, (strpos($row[0], ' ON ') - 6));
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if ($show_grants_str == 'RELOAD') {
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$is_reload_priv = true;
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}
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/**
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* @todo if we find CREATE VIEW but not CREATE, do not offer
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* the create database dialog box
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*/
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if (($show_grants_str == 'ALL') || ($show_grants_str == 'ALL PRIVILEGES') || ($show_grants_str == 'CREATE') || strpos($show_grants_str, 'CREATE,') !== false) {
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if ($show_grants_dbname == '*') {
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// a global CREATE privilege
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$is_create_db_priv = true;
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$is_reload_priv = true;
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$db_to_create = '';
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$dbs_where_create_table_allowed[] = '*';
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break;
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} else {
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// this array may contain wildcards
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$dbs_where_create_table_allowed[] = $show_grants_dbname;
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// before MySQL 4.1.0, we cannot use backquotes around a dbname
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// for the USE command, so the USE will fail if the dbname contains
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// a "-" and we cannot detect if such a db already exists;
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// since 4.1.0, we need to use backquotes if the dbname contains a "-"
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// in a USE command
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$dbname_to_test = PMA_backquote($show_grants_dbname);
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if ((ereg($re0 . '%|_', $show_grants_dbname)
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&& !ereg('\\\\%|\\\\_', $show_grants_dbname))
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// does this db exist?
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|| (!PMA_DBI_try_query('USE ' . ereg_replace($re1 .'(%|_)', '\\1\\3', $dbname_to_test), null, PMA_DBI_QUERY_STORE)
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&& substr(PMA_DBI_getError(), 1, 4) != 1044)
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) {
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$db_to_create = ereg_replace($re0 . '%', '\\1...', ereg_replace($re0 . '_', '\\1?', $show_grants_dbname));
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$db_to_create = ereg_replace($re1 . '(%|_)', '\\1\\3', $db_to_create);
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$is_create_db_priv = true;
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/**
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* @todo collect $db_to_create into an array, to display a
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* drop-down in the "Create new database" dialog
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*/
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// we don't break, we want all possible databases
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//break;
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} // end if
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} // end elseif
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} // end if
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} // end while
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} // end function
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// Detection for some CREATE privilege.
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// Since MySQL 4.1.2, we can easily detect current user's grants
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// using $userlink (no control user needed)
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// and we don't have to try any other method for detection
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$rs_usr = PMA_DBI_try_query('SHOW GRANTS', $userlink, PMA_DBI_QUERY_STORE);
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if ($rs_usr) {
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PMA_analyseShowGrant($rs_usr, $is_create_db_priv, $db_to_create, $is_reload_priv, $dbs_where_create_table_allowed);
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PMA_DBI_free_result($rs_usr);
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unset($rs_usr);
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}
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// If disabled, don't show it
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if (!$cfg['SuggestDBName']) {
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$db_to_create = '';
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}
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?>
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