<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 *
 * @version $Id: server_privileges.php 11656 2008-10-18 23:35:22Z lem9 $
 */

/**
 *
 */
require_once './libraries/common.inc.php';

/**
 * Does the common work
 */
$GLOBALS['js_include'][] = 'server_privileges.js';
$GLOBALS['js_include'][] = 'functions.js';
require './libraries/server_common.inc.php';


/**
 * Checks if a dropdown box has been used for selecting a database / table
 */
if (PMA_isValid($_REQUEST['pred_tablename'])) {
    $tablename = $_REQUEST['pred_tablename'];
    unset($pred_tablename);
} elseif (PMA_isValid($_REQUEST['tablename'])) {
    $tablename = $_REQUEST['tablename'];
} else {
    unset($tablename);
}

if (PMA_isValid($_REQUEST['pred_dbname'])) {
    $dbname = $_REQUEST['pred_dbname'];
    unset($pred_dbname);
} elseif (PMA_isValid($_REQUEST['dbname'])) {
    $dbname = $_REQUEST['dbname'];
} else {
    unset($dbname);
    unset($tablename);
}

if (isset($dbname)) {
    $db_and_table = PMA_backquote(PMA_unescape_mysql_wildcards($dbname)) . '.';
    if (isset($tablename)) {
        $db_and_table .= PMA_backquote($tablename);
    } else {
        $db_and_table .= '*';
    }
} else {
    $db_and_table = '*.*';
}

// check if given $dbanem is a wildcard or not
if (isset($dbname)) {
    //if (preg_match('/\\\\(?:_|%)/i', $dbname)) {
    if (preg_match('/(?<!\\\\)(?:_|%)/i', $dbname)) {
        $dbname_is_wildcard = true;
    } else {
        $dbname_is_wildcard = false;
    }
}

/**
 * Checks if the user is allowed to do what he tries to...
 */
if (!$is_superuser) {
    require './libraries/server_links.inc.php';
    echo '<h2>' . "\n"
       . PMA_getIcon('b_usrlist.png')
       . $GLOBALS['strPrivileges'] . "\n"
       . '</h2>' . "\n";
    PMA_Message::error('strNoPrivileges')->display();
    require_once './libraries/footer.inc.php';
}

/**
 * Generates a condition on the user name
 *
 * @param   string   the user's initial
 * @return  string   the generated condition
 */
function PMA_RangeOfUsers($initial = '')
{
    // strtolower() is used because the User field
    // might be BINARY, so LIKE would be case sensitive
    if (!empty($initial)) {
        $ret = " WHERE `User` LIKE '" . $initial . "%'"
            . " OR `User` LIKE '" . strtolower($initial) . "%'";
    } else {
        $ret = '';
    }
    return $ret;
} // end function

/**
 * Extracts the privilege information of a priv table row
 *
 * @param   array   $row        the row
 * @param   boolean $enableHTML add <dfn> tag with tooltips
 *
 * @global  ressource $user_link the database connection
 *
 * @return  array
 */
function PMA_extractPrivInfo($row = '', $enableHTML = FALSE)
{
    $grants = array(
        array('Select_priv', 'SELECT', $GLOBALS['strPrivDescSelect']),
        array('Insert_priv', 'INSERT', $GLOBALS['strPrivDescInsert']),
        array('Update_priv', 'UPDATE', $GLOBALS['strPrivDescUpdate']),
        array('Delete_priv', 'DELETE', $GLOBALS['strPrivDescDelete']),
        array('Create_priv', 'CREATE', $GLOBALS['strPrivDescCreateDb']),
        array('Drop_priv', 'DROP', $GLOBALS['strPrivDescDropDb']),
        array('Reload_priv', 'RELOAD', $GLOBALS['strPrivDescReload']),
        array('Shutdown_priv', 'SHUTDOWN', $GLOBALS['strPrivDescShutdown']),
        array('Process_priv', 'PROCESS', $GLOBALS['strPrivDescProcess']),
        array('File_priv', 'FILE', $GLOBALS['strPrivDescFile']),
        array('References_priv', 'REFERENCES', $GLOBALS['strPrivDescReferences']),
        array('Index_priv', 'INDEX', $GLOBALS['strPrivDescIndex']),
        array('Alter_priv', 'ALTER', $GLOBALS['strPrivDescAlter']),
        array('Show_db_priv', 'SHOW DATABASES', $GLOBALS['strPrivDescShowDb']),
        array('Super_priv', 'SUPER', $GLOBALS['strPrivDescSuper']),
        array('Create_tmp_table_priv', 'CREATE TEMPORARY TABLES', $GLOBALS['strPrivDescCreateTmpTable']),
        array('Lock_tables_priv', 'LOCK TABLES', $GLOBALS['strPrivDescLockTables']),
        array('Repl_slave_priv', 'REPLICATION SLAVE', $GLOBALS['strPrivDescReplSlave']),
        array('Repl_client_priv', 'REPLICATION CLIENT', $GLOBALS['strPrivDescReplClient']),
        array('Create_view_priv', 'CREATE VIEW', $GLOBALS['strPrivDescCreateView']),
        array('Event_priv', 'EVENT', $GLOBALS['strPrivDescEvent']),
        array('Trigger_priv', 'TRIGGER', $GLOBALS['strPrivDescTrigger']),
        // for table privs:
        array('Create View_priv', 'CREATE VIEW', $GLOBALS['strPrivDescCreateView']),
        array('Show_view_priv', 'SHOW VIEW', $GLOBALS['strPrivDescShowView']),
        // for table privs:
        array('Show view_priv', 'SHOW VIEW', $GLOBALS['strPrivDescShowView']),
        array('Create_routine_priv', 'CREATE ROUTINE', $GLOBALS['strPrivDescCreateRoutine']),
        array('Alter_routine_priv', 'ALTER ROUTINE', $GLOBALS['strPrivDescAlterRoutine']),
        array('Create_user_priv', 'CREATE USER', $GLOBALS['strPrivDescCreateUser']),
        array('Execute_priv', 'EXECUTE', $GLOBALS['strPrivDescExecute5']),
    );

    if (!empty($row) && isset($row['Table_priv'])) {
        $row1 = PMA_DBI_fetch_single_row(
            'SHOW COLUMNS FROM `mysql`.`tables_priv` LIKE \'Table_priv\';',
            'ASSOC', $GLOBALS['userlink']);
        $av_grants = explode('\',\'', substr($row1['Type'], 5, strlen($row1['Type']) - 7));
        unset($row1);
        $users_grants = explode(',', $row['Table_priv']);
        foreach ($av_grants as $current_grant) {
            $row[$current_grant . '_priv'] = in_array($current_grant, $users_grants) ? 'Y' : 'N';
        }
        unset($current_grant);
        unset($av_grants);
        unset($users_grants);
    }
    $privs = array();
    $allPrivileges = TRUE;
    foreach ($grants as $current_grant) {
        if ((!empty($row) && isset($row[$current_grant[0]]))
         || (empty($row) && isset($GLOBALS[$current_grant[0]]))) {
            if ((!empty($row) && $row[$current_grant[0]] == 'Y')
             || (empty($row)
              && ($GLOBALS[$current_grant[0]] == 'Y'
               || (is_array($GLOBALS[$current_grant[0]])
                && count($GLOBALS[$current_grant[0]]) == $GLOBALS['column_count']
                && empty($GLOBALS[$current_grant[0] . '_none'])))))
            {
                if ($enableHTML) {
                    $privs[] = '<dfn title="' . $current_grant[2] . '">' . $current_grant[1] . '</dfn>';
                } else {
                    $privs[] = $current_grant[1];
                }
            } elseif (!empty($GLOBALS[$current_grant[0]])
             && is_array($GLOBALS[$current_grant[0]])
             && empty($GLOBALS[$current_grant[0] . '_none'])) {
                if ($enableHTML) {
                    $priv_string = '<dfn title="' . $current_grant[2] . '">' . $current_grant[1] . '</dfn>';
                } else {
                    $priv_string = $current_grant[1];
                }
                $privs[] = $priv_string . ' (`' . join('`, `', $GLOBALS[$current_grant[0]]) . '`)';
            } else {
                $allPrivileges = FALSE;
            }
        }
    }
    if (empty($privs)) {
        if ($enableHTML) {
            $privs[] = '<dfn title="' . $GLOBALS['strPrivDescUsage'] . '">USAGE</dfn>';
        } else {
            $privs[] = 'USAGE';
        }
    } elseif ($allPrivileges && (!isset($GLOBALS['grant_count']) || count($privs) == $GLOBALS['grant_count'])) {
        if ($enableHTML) {
            $privs = array('<dfn title="' . $GLOBALS['strPrivDescAllPrivileges'] . '">ALL PRIVILEGES</dfn>');
        } else {
            $privs = array('ALL PRIVILEGES');
        }
    }
    return $privs;
} // end of the 'PMA_extractPrivInfo()' function

/**
 * Displays on which column(s) a table-specific privilege is granted
 */
function PMA_display_column_privs($columns, $row, $name_for_select,
    $priv_for_header, $name, $name_for_dfn, $name_for_current)
{
        echo '    <div class="item" id="div_item_' . $name . '">' . "\n"
           . '        <label for="select_' . $name . '_priv">' . "\n"
           . '            <tt><dfn title="' . $name_for_dfn . '">'
            . $priv_for_header . '</dfn></tt>' . "\n"
           . '        </label><br />' . "\n"
           . '        <select id="select_' . $name . '_priv" name="'
            . $name_for_select . '[]" multiple="multiple" size="8">' . "\n";

        foreach ($columns as $current_column => $current_column_privileges) {
            echo '            <option value="' . htmlspecialchars($current_column) . '"';
            if ($row[$name_for_select] == 'Y' || $current_column_privileges[$name_for_current]) {
                echo ' selected="selected"';
            }
            echo '>' . htmlspecialchars($current_column) . '</option>' . "\n";
        }

        echo '        </select>' . "\n"
           . '        <i>' . $GLOBALS['strOr'] . '</i>' . "\n"
           . '        <label for="checkbox_' . $name_for_select
            . '_none"><input type="checkbox"'
            . (empty($GLOBALS['checkall']) ?  '' : ' checked="checked"')
            . ' name="' . $name_for_select . '_none" id="checkbox_'
            . $name_for_select . '_none" title="' . $GLOBALS['strNone'] . '" />'
            . $GLOBALS['strNone'] . '</label>' . "\n"
           . '    </div>' . "\n";
} // end function


/**
 * Displays the privileges form table
 *
 * @param   string  $db     the database
 * @param   string  $table  the table
 * @param   boolean $submit wheather to display the submit button or not
 * @global  array      $cfg         the phpMyAdmin configuration
 * @global  ressource  $user_link   the database connection
 *
 * @return  void
 */
function PMA_displayPrivTable($db = '*', $table = '*', $submit = TRUE)
{
    if ($db == '*') {
        $table = '*';
    }

    if (isset($GLOBALS['username'])) {
        $username = $GLOBALS['username'];
        $hostname = $GLOBALS['hostname'];
        if ($db == '*') {
            $sql_query =
                 "SELECT * FROM `mysql`.`user`"
                ." WHERE `User` = '" . PMA_sqlAddslashes($username) . "'"
                ." AND `Host` = '" . PMA_sqlAddslashes($hostname) . "';";
        } elseif ($table == '*') {
            $sql_query =
                "SELECT * FROM `mysql`.`db`"
                ." WHERE `User` = '" . PMA_sqlAddslashes($username) . "'"
                ." AND `Host` = '" . PMA_sqlAddslashes($hostname) . "'"
                ." AND '" . PMA_unescape_mysql_wildcards($db) . "'"
                ." LIKE `Db`;";
        } else {
            $sql_query =
                "SELECT `Table_priv`"
                ." FROM `mysql`.`tables_priv`"
                ." WHERE `User` = '" . PMA_sqlAddslashes($username) . "'"
                ." AND `Host` = '" . PMA_sqlAddslashes($hostname) . "'"
                ." AND `Db` = '" . PMA_unescape_mysql_wildcards($db) . "'"
                ." AND `Table_name` = '" . PMA_sqlAddslashes($table) . "';";
        }
        $row = PMA_DBI_fetch_single_row($sql_query);
    }
    if (empty($row)) {
        if ($table == '*') {
            if ($db == '*') {
                $sql_query = 'SHOW COLUMNS FROM `mysql`.`user`;';
            } elseif ($table == '*') {
                $sql_query = 'SHOW COLUMNS FROM `mysql`.`db`;';
            }
            $res = PMA_DBI_query($sql_query);
            while ($row1 = PMA_DBI_fetch_row($res)) {
                if (substr($row1[0], 0, 4) == 'max_') {
                    $row[$row1[0]] = 0;
                } else {
                    $row[$row1[0]] = 'N';
                }
            }
            PMA_DBI_free_result($res);
        } else {
            $row = array('Table_priv' => '');
        }
    }
    if (isset($row['Table_priv'])) {
        $row1 = PMA_DBI_fetch_single_row(
            'SHOW COLUMNS FROM `mysql`.`tables_priv` LIKE \'Table_priv\';',
            'ASSOC', $GLOBALS['userlink']);
        // note: in MySQL 5.0.3 we get "Create View', 'Show view';
        // the View for Create is spelled with uppercase V
        // the view for Show is spelled with lowercase v
        // and there is a space between the words

        $av_grants = explode('\',\'', substr($row1['Type'], strpos($row1['Type'], '(') + 2, strpos($row1['Type'], ')') - strpos($row1['Type'], '(') - 3));
        unset($row1);
        $users_grants = explode(',', $row['Table_priv']);

        foreach ($av_grants as $current_grant) {
            $row[$current_grant . '_priv'] = in_array($current_grant, $users_grants) ? 'Y' : 'N';
        }
        unset($row['Table_priv'], $current_grant, $av_grants, $users_grants);

        // get collumns
        $res = PMA_DBI_try_query('SHOW COLUMNS FROM `' . PMA_unescape_mysql_wildcards($db) . '`.`' . $table . '`;');
        $columns = array();
        if ($res) {
            while ($row1 = PMA_DBI_fetch_row($res)) {
                $columns[$row1[0]] = array(
                    'Select' => FALSE,
                    'Insert' => FALSE,
                    'Update' => FALSE,
                    'References' => FALSE
                );
            }
            PMA_DBI_free_result($res);
        }
        unset($res, $row1);
    }
    // t a b l e - s p e c i f i c    p r i v i l e g e s
    if (! empty($columns)) {
        $res = PMA_DBI_query(
            'SELECT `Column_name`, `Column_priv`'
            .' FROM `mysql`.`columns_priv`'
            .' WHERE `User`'
            .' = \'' . PMA_sqlAddslashes($username) . "'"
            .' AND `Host`'
            .' = \'' . PMA_sqlAddslashes($hostname) . "'"
            .' AND `Db`'
            .' = \'' . PMA_unescape_mysql_wildcards($db) . "'"
            .' AND `Table_name`'
            .' = \'' . PMA_sqlAddslashes($table) . '\';');

        while ($row1 = PMA_DBI_fetch_row($res)) {
            $row1[1] = explode(',', $row1[1]);
            foreach ($row1[1] as $current) {
                $columns[$row1[0]][$current] = TRUE;
            }
        }
        PMA_DBI_free_result($res);
        unset($res, $row1, $current);

        echo '<input type="hidden" name="grant_count" value="' . count($row) . '" />' . "\n"
           . '<input type="hidden" name="column_count" value="' . count($columns) . '" />' . "\n"
           . '<fieldset id="fieldset_user_priv">' . "\n"
           . '    <legend>' . $GLOBALS['strTblPrivileges']
           . PMA_showHint($GLOBALS['strEnglishPrivileges'])
           . '</legend>' . "\n";



        // privs that are attached to a specific column
        PMA_display_column_privs($columns, $row, 'Select_priv',
            'SELECT', 'select', $GLOBALS['strPrivDescSelect'], 'Select');

        PMA_display_column_privs($columns, $row, 'Insert_priv',
            'INSERT', 'insert', $GLOBALS['strPrivDescInsert'], 'Insert');

        PMA_display_column_privs($columns, $row, 'Update_priv',
            'UPDATE', 'update', $GLOBALS['strPrivDescUpdate'], 'Update');

        PMA_display_column_privs($columns, $row, 'References_priv',
            'REFERENCES', 'references', $GLOBALS['strPrivDescReferences'], 'References');

        // privs that are not attached to a specific column

        echo '    <div class="item">' . "\n";
        foreach ($row as $current_grant => $current_grant_value) {
            if (in_array(substr($current_grant, 0, (strlen($current_grant) - 5)),
                    array('Select', 'Insert', 'Update', 'References'))) {
                continue;
            }
            // make a substitution to match the messages variables;
            // also we must substitute the grant we get, because we can't generate
            // a form variable containing blanks (those would get changed to
            // an underscore when receiving the POST)
            if ($current_grant == 'Create View_priv') {
                $tmp_current_grant = 'CreateView_priv';
                $current_grant = 'Create_view_priv';
            } elseif ($current_grant == 'Show view_priv') {
                $tmp_current_grant = 'ShowView_priv';
                $current_grant = 'Show_view_priv';
            } else {
                $tmp_current_grant = $current_grant;
            }

            echo '        <div class="item">' . "\n"
               . '            <input type="checkbox"'
               . (empty($GLOBALS['checkall']) ?  '' : ' checked="checked"')
               . ' name="' . $current_grant . '" id="checkbox_' . $current_grant
               . '" value="Y" '
               . ($current_grant_value == 'Y' ? 'checked="checked" ' : '')
               . 'title="';

            echo (isset($GLOBALS['strPrivDesc' . substr($tmp_current_grant, 0, (strlen($tmp_current_grant) - 5))])
                ? $GLOBALS['strPrivDesc' . substr($tmp_current_grant, 0, (strlen($tmp_current_grant) - 5))]
                : $GLOBALS['strPrivDesc' . substr($tmp_current_grant, 0, (strlen($tmp_current_grant) - 5)) . 'Tbl']) . '"/>' . "\n";

            echo '            <label for="checkbox_' . $current_grant
                . '"><tt><dfn title="'
                . (isset($GLOBALS['strPrivDesc' . substr($tmp_current_grant, 0, (strlen($tmp_current_grant) - 5))])
                    ? $GLOBALS['strPrivDesc' . substr($tmp_current_grant, 0, (strlen($tmp_current_grant) - 5))]
                    : $GLOBALS['strPrivDesc' . substr($tmp_current_grant, 0, (strlen($tmp_current_grant) - 5)) . 'Tbl'])
               . '">' . strtoupper(substr($current_grant, 0, strlen($current_grant) - 5)) . '</dfn></tt></label>' . "\n"
               . '        </div>' . "\n";
        } // end foreach ()

        echo '    </div>' . "\n";
        // for Safari 2.0.2
        echo '    <div class="clearfloat"></div>' . "\n";

    } else {

        // g l o b a l    o r    d b - s p e c i f i c
        //
        // d a t a
        $privTable[0] = array(
            array('Select', 'SELECT', $GLOBALS['strPrivDescSelect']),
            array('Insert', 'INSERT', $GLOBALS['strPrivDescInsert']),
            array('Update', 'UPDATE', $GLOBALS['strPrivDescUpdate']),
            array('Delete', 'DELETE', $GLOBALS['strPrivDescDelete'])
        );
        if ($db == '*') {
            $privTable[0][] = array('File', 'FILE', $GLOBALS['strPrivDescFile']);
        }

        // s t r u c t u r e
        $privTable[1] = array(
            array('Create', 'CREATE', ($table == '*' ? $GLOBALS['strPrivDescCreateDb'] : $GLOBALS['strPrivDescCreateTbl'])),
            array('Alter', 'ALTER', $GLOBALS['strPrivDescAlter']),
            array('Index', 'INDEX', $GLOBALS['strPrivDescIndex']),
            array('Drop', 'DROP', ($table == '*' ? $GLOBALS['strPrivDescDropDb'] : $GLOBALS['strPrivDescDropTbl'])),
            array('Create_tmp_table', 'CREATE TEMPORARY TABLES', $GLOBALS['strPrivDescCreateTmpTable']),
            array('Show_view', 'SHOW VIEW', $GLOBALS['strPrivDescShowView']),
            array('Create_routine', 'CREATE ROUTINE', $GLOBALS['strPrivDescCreateRoutine']),
            array('Alter_routine', 'ALTER ROUTINE', $GLOBALS['strPrivDescAlterRoutine']),
            array('Execute', 'EXECUTE', $GLOBALS['strPrivDescExecute5']),
        );
        // this one is for a db-specific priv: Create_view_priv
        if (isset($row['Create_view_priv'])) {
            $privTable[1][] = array('Create_view', 'CREATE VIEW', $GLOBALS['strPrivDescCreateView']);
        }
        // this one is for a table-specific priv: Create View_priv
        if (isset($row['Create View_priv'])) {
            $privTable[1][] = array('Create View', 'CREATE VIEW', $GLOBALS['strPrivDescCreateView']);
        }
        if (isset($row['Event_priv'])) {
            // MySQL 5.1.6
            $privTable[1][] = array('Event', 'EVENT', $GLOBALS['strPrivDescEvent']);
            $privTable[1][] = array('Trigger', 'TRIGGER', $GLOBALS['strPrivDescTrigger']);
        }

        // a d m i n i s t r a t i o n
        $privTable[2] = array(
            array('Grant', 'GRANT', $GLOBALS['strPrivDescGrant']),
        );
        if ($db == '*') {
            $privTable[2][] = array('Super', 'SUPER', $GLOBALS['strPrivDescSuper']);
            $privTable[2][] = array('Process', 'PROCESS', $GLOBALS['strPrivDescProcess']);
            $privTable[2][] = array('Reload', 'RELOAD', $GLOBALS['strPrivDescReload']);
            $privTable[2][] = array('Shutdown', 'SHUTDOWN', $GLOBALS['strPrivDescShutdown']);
            $privTable[2][] = array('Show_db', 'SHOW DATABASES', $GLOBALS['strPrivDescShowDb']);
        }
        $privTable[2][] = array('Lock_tables', 'LOCK TABLES', $GLOBALS['strPrivDescLockTables']);
        $privTable[2][] = array('References', 'REFERENCES', $GLOBALS['strPrivDescReferences']);
        if ($db == '*') {
            $privTable[2][] = array('Repl_client', 'REPLICATION CLIENT', $GLOBALS['strPrivDescReplClient']);
            $privTable[2][] = array('Repl_slave', 'REPLICATION SLAVE', $GLOBALS['strPrivDescReplSlave']);
            $privTable[2][] = array('Create_user', 'CREATE USER', $GLOBALS['strPrivDescCreateUser']);
        }
        echo '<input type="hidden" name="grant_count" value="'
            . (count($privTable[0]) + count($privTable[1]) + count($privTable[2]) - (isset($row['Grant_priv']) ? 1 : 0))
            . '" />' . "\n"
           . '<fieldset id="fieldset_user_global_rights">' . "\n"
           . '    <legend>' . "\n"
           . '        '
            . ($db == '*'
                ? $GLOBALS['strGlobalPrivileges']
                : ($table == '*'
                    ? $GLOBALS['strDbPrivileges']
                    : $GLOBALS['strTblPrivileges'])) . "\n"
           . '        (<a href="server_privileges.php?'
            . $GLOBALS['url_query'] . '&amp;checkall=1" onclick="setCheckboxes(\'usersForm\', true); return false;">'
            . $GLOBALS['strCheckAll'] . '</a> /' . "\n"
           . '        <a href="server_privileges.php?'
            . $GLOBALS['url_query'] . '" onclick="setCheckboxes(\'usersForm\', false); return false;">'
            . $GLOBALS['strUncheckAll'] . '</a>)' . "\n"
           . '    </legend>' . "\n"
           . '    <p><small><i>' . $GLOBALS['strEnglishPrivileges'] . '</i></small></p>' . "\n"
           . '    <fieldset>' . "\n"
           . '        <legend>' . $GLOBALS['strData'] . '</legend>' . "\n";
        foreach ($privTable[0] as $priv)
        {
            echo '        <div class="item">' . "\n"
               . '            <input type="checkbox"'
                . (empty($GLOBALS['checkall']) ?  '' : ' checked="checked"')
                . ' name="' . $priv[0] . '_priv" id="checkbox_' . $priv[0]
                . '_priv" value="Y" '
                . ($row[$priv[0] . '_priv'] == 'Y' ? 'checked="checked" ' : '')
                . 'title="' . $priv[2] . '"/>' . "\n"
               . '            <label for="checkbox_' . $priv[0]
                . '_priv"><tt><dfn title="' . $priv[2] . '">' . $priv[1]
                . '</dfn></tt></label>' . "\n"
               . '        </div>' . "\n";
        }
        echo '    </fieldset>' . "\n"
           . '    <fieldset>' . "\n"
           . '        <legend>' . $GLOBALS['strStructure'] . '</legend>' . "\n";
        foreach ($privTable[1] as $priv)
        {
            echo '        <div class="item">' . "\n"
               . '            <input type="checkbox"'
                . (empty($GLOBALS['checkall']) ?  '' : ' checked="checked"')
                . ' name="' . $priv[0] . '_priv" id="checkbox_' . $priv[0]
                . '_priv" value="Y" '
                . ($row[$priv[0] . '_priv'] == 'Y' ? 'checked="checked" ' : '')
                . 'title="' . $priv[2] . '"/>' . "\n"
               . '            <label for="checkbox_' . $priv[0]
                . '_priv"><tt><dfn title="' . $priv[2] . '">' . $priv[1]
                . '</dfn></tt></label>' . "\n"
               . '        </div>' . "\n";
        }
        echo '    </fieldset>' . "\n"
           . '    <fieldset>' . "\n"
           . '        <legend>' . $GLOBALS['strAdministration'] . '</legend>' . "\n";
        foreach ($privTable[2] as $priv)
        {
            echo '        <div class="item">' . "\n"
               . '            <input type="checkbox"'
                . (empty($GLOBALS['checkall']) ?  '' : ' checked="checked"')
                . ' name="' . $priv[0] . '_priv" id="checkbox_' . $priv[0]
                . '_priv" value="Y" '
                . ($row[$priv[0] . '_priv'] == 'Y' ? 'checked="checked" ' : '')
                . 'title="' . $priv[2] . '"/>' . "\n"
               . '            <label for="checkbox_' . $priv[0]
                . '_priv"><tt><dfn title="' . $priv[2] . '">' . $priv[1]
                . '</dfn></tt></label>' . "\n"
               . '        </div>' . "\n";
        }

        echo '    </fieldset>' . "\n";
        // The "Resource limits" box is not displayed for db-specific privs
        if ($db == '*') {
            echo '    <fieldset>' . "\n"
               . '        <legend>' . $GLOBALS['strResourceLimits'] . '</legend>' . "\n"
               . '        <p><small><i>' . $GLOBALS['strZeroRemovesTheLimit'] . '</i></small></p>' . "\n"
               . '        <div class="item">' . "\n"
               . '            <label for="text_max_questions"><tt><dfn title="'
                . $GLOBALS['strPrivDescMaxQuestions'] . '">MAX QUERIES PER HOUR</dfn></tt></label>' . "\n"
               . '            <input type="text" name="max_questions" id="text_max_questions" value="'
                . $row['max_questions'] . '" size="11" maxlength="11" title="' . $GLOBALS['strPrivDescMaxQuestions'] . '" />' . "\n"
               . '        </div>' . "\n"
               . '        <div class="item">' . "\n"
               . '            <label for="text_max_updates"><tt><dfn title="'
                . $GLOBALS['strPrivDescMaxUpdates'] . '">MAX UPDATES PER HOUR</dfn></tt></label>' . "\n"
               . '            <input type="text" name="max_updates" id="text_max_updates" value="'
                . $row['max_updates'] . '" size="11" maxlength="11" title="' . $GLOBALS['strPrivDescMaxUpdates'] . '" />' . "\n"
               . '        </div>' . "\n"
               . '        <div class="item">' . "\n"
               . '            <label for="text_max_connections"><tt><dfn title="'
                . $GLOBALS['strPrivDescMaxConnections'] . '">MAX CONNECTIONS PER HOUR</dfn></tt></label>' . "\n"
               . '            <input type="text" name="max_connections" id="text_max_connections" value="'
                . $row['max_connections'] . '" size="11" maxlength="11" title="' . $GLOBALS['strPrivDescMaxConnections'] . '" />' . "\n"
               . '        </div>' . "\n"
               . '        <div class="item">' . "\n"
               . '            <label for="text_max_user_connections"><tt><dfn title="'
                . $GLOBALS['strPrivDescMaxUserConnections'] . '">MAX USER_CONNECTIONS</dfn></tt></label>' . "\n"
               . '            <input type="text" name="max_user_connections" id="text_max_user_connections" value="'
                . $row['max_user_connections'] . '" size="11" maxlength="11" title="' . $GLOBALS['strPrivDescMaxUserConnections'] . '" />' . "\n"
               . '        </div>' . "\n"
               . '    </fieldset>' . "\n";
           }
        // for Safari 2.0.2
        echo '    <div class="clearfloat"></div>' . "\n";
    }
    echo '</fieldset>' . "\n";
    if ($submit) {
        echo '<fieldset id="fieldset_user_privtable_footer" class="tblFooters">' . "\n"
           . '    <input type="submit" name="update_privs" value="' . $GLOBALS['strGo'] . '" />' . "\n"
           . '</fieldset>' . "\n";
    }
} // end of the 'PMA_displayPrivTable()' function


/**
 * Displays the fields used by the "new user" form as well as the
 * "change login information / copy user" form.
 *
 * @param   string     $mode    are we creating a new user or are we just
 *                              changing  one? (allowed values: 'new', 'change')
 * @global  array      $cfg     the phpMyAdmin configuration
 * @global  ressource  $user_link the database connection
 *
 * @return  void
 */
function PMA_displayLoginInformationFields($mode = 'new')
{
    // Get user/host name lengths
    $fields_info = PMA_DBI_get_fields('mysql', 'user');
    $username_length = 16;
    $hostname_length = 41;
    foreach ($fields_info as $key => $val) {
        if ($val['Field'] == 'User') {
            strtok($val['Type'], '()');
            $v = strtok('()');
            if (is_int($v)) {
                $username_length = $v;
            }
        } elseif ($val['Field'] == 'Host') {
            strtok($val['Type'], '()');
            $v = strtok('()');
            if (is_int($v)) {
                $hostname_length = $v;
            }
        }
    }
    unset($fields_info);

    if (isset($GLOBALS['username']) && strlen($GLOBALS['username']) === 0) {
        $GLOBALS['pred_username'] = 'any';
    }
    echo '<fieldset id="fieldset_add_user_login">' . "\n"
       . '<legend>' . $GLOBALS['strLoginInformation'] . '</legend>' . "\n"
       . '<div class="item">' . "\n"
       . '<label for="select_pred_username">' . "\n"
       . '    ' . $GLOBALS['strUserName'] . ':' . "\n"
       . '</label>' . "\n"
       . '<span class="options">' . "\n"
       . '    <select name="pred_username" id="select_pred_username" title="' . $GLOBALS['strUserName'] . '"' . "\n"
       . '        onchange="if (this.value == \'any\') { username.value = \'\'; } else if (this.value == \'userdefined\') { username.focus(); username.select(); }">' . "\n"
       . '        <option value="any"' . ((isset($GLOBALS['pred_username']) && $GLOBALS['pred_username'] == 'any') ? ' selected="selected"' : '') . '>' . $GLOBALS['strAnyUser'] . '</option>' . "\n"
       . '        <option value="userdefined"' . ((!isset($GLOBALS['pred_username']) || $GLOBALS['pred_username'] == 'userdefined') ? ' selected="selected"' : '') . '>' . $GLOBALS['strUseTextField'] . ':</option>' . "\n"
       . '    </select>' . "\n"
       . '</span>' . "\n"
       . '<input type="text" name="username" maxlength="'
        . $username_length . '" title="' . $GLOBALS['strUserName'] . '"'
        . (empty($GLOBALS['username'])
            ? ''
            : ' value="' . (isset($GLOBALS['new_username'])
                ? $GLOBALS['new_username']
                : $GLOBALS['username']) . '"')
        . ' onchange="pred_username.value = \'userdefined\';" />' . "\n"
       . '</div>' . "\n"
       . '<div class="item">' . "\n"
       . '<label for="select_pred_hostname">' . "\n"
       . '    ' . $GLOBALS['strHost'] . ':' . "\n"
       . '</label>' . "\n"
       . '<span class="options">' . "\n"
       . '    <select name="pred_hostname" id="select_pred_hostname" title="' . $GLOBALS['strHost'] . '"' . "\n";
    $_current_user = PMA_DBI_fetch_value('SELECT USER();');
    if (! empty($_current_user)) {
        $thishost = str_replace("'", '', substr($_current_user, (strrpos($_current_user, '@') + 1)));
        if ($thishost == 'localhost' || $thishost == '127.0.0.1') {
            unset($thishost);
        }
    }
    echo '    onchange="if (this.value == \'any\') { hostname.value = \'%\'; } else if (this.value == \'localhost\') { hostname.value = \'localhost\'; } '
       . (empty($thishost) ? '' : 'else if (this.value == \'thishost\') { hostname.value = \'' . addslashes(htmlspecialchars($thishost)) . '\'; } ')
       . 'else if (this.value == \'hosttable\') { hostname.value = \'\'; } else if (this.value == \'userdefined\') { hostname.focus(); hostname.select(); }">' . "\n";
    unset($_current_user);

    // when we start editing a user, $GLOBALS['pred_hostname'] is not defined
    if (!isset($GLOBALS['pred_hostname']) && isset($GLOBALS['hostname'])) {
        switch (strtolower($GLOBALS['hostname'])) {
            case 'localhost':
            case '127.0.0.1':
                $GLOBALS['pred_hostname'] = 'localhost';
                break;
            case '%':
                $GLOBALS['pred_hostname'] = 'any';
                break;
            default:
                $GLOBALS['pred_hostname'] = 'userdefined';
                break;
        }
    }
    echo '        <option value="any"'
        . ((isset($GLOBALS['pred_hostname']) && $GLOBALS['pred_hostname'] == 'any')
            ? ' selected="selected"' : '') . '>' . $GLOBALS['strAnyHost']
        . '</option>' . "\n"
       . '        <option value="localhost"'
        . ((isset($GLOBALS['pred_hostname']) && $GLOBALS['pred_hostname'] == 'localhost')
            ? ' selected="selected"' : '') . '>' . $GLOBALS['strLocalhost']
        . '</option>' . "\n";
    if (!empty($thishost)) {
        echo '        <option value="thishost"'
            . ((isset($GLOBALS['pred_hostname']) && $GLOBALS['pred_hostname'] == 'thishost')
                ? ' selected="selected"' : '') . '>' . $GLOBALS['strThisHost']
            . '</option>' . "\n";
    }
    unset($thishost);
    echo '        <option value="hosttable"'
        . ((isset($GLOBALS['pred_hostname']) && $GLOBALS['pred_hostname'] == 'hosttable')
            ? ' selected="selected"' : '') . '>' . $GLOBALS['strUseHostTable']
        . '</option>' . "\n"
       . '        <option value="userdefined"'
        . ((isset($GLOBALS['pred_hostname']) && $GLOBALS['pred_hostname'] == 'userdefined')
            ? ' selected="selected"' : '')
        . '>' . $GLOBALS['strUseTextField'] . ':</option>' . "\n"
       . '    </select>' . "\n"
       . '</span>' . "\n"
       . '<input type="text" name="hostname" maxlength="'
        . $hostname_length . '" value="'
        . (isset($GLOBALS['hostname']) ? $GLOBALS['hostname'] : '')
        . '" title="' . $GLOBALS['strHost']
        . '" onchange="pred_hostname.value = \'userdefined\';" />' . "\n"
       . '</div>' . "\n"
       . '<div class="item">' . "\n"
       . '<label for="select_pred_password">' . "\n"
       . '    ' . $GLOBALS['strPassword'] . ':' . "\n"
       . '</label>' . "\n"
       . '<span class="options">' . "\n"
       . '    <select name="pred_password" id="select_pred_password" title="'
        . $GLOBALS['strPassword'] . '"' . "\n"
       . '            onchange="if (this.value == \'none\') { pma_pw.value = \'\'; pma_pw2.value = \'\'; } else if (this.value == \'userdefined\') { pma_pw.focus(); pma_pw.select(); }">' . "\n"
       . ($mode == 'change' ? '            <option value="keep" selected="selected">' . $GLOBALS['strKeepPass'] . '</option>' . "\n" : '')
       . '        <option value="none"';
    if (isset($GLOBALS['username']) && $mode != 'change') {
        echo '  selected="selected"';
    }
    echo '>' . $GLOBALS['strNoPassword'] . '</option>' . "\n"
       . '        <option value="userdefined"' . (isset($GLOBALS['username']) ? '' : ' selected="selected"') . '>' . $GLOBALS['strUseTextField'] . ':</option>' . "\n"
       . '    </select>' . "\n"
       . '</span>' . "\n"
       . '<input type="password" id="text_pma_pw" name="pma_pw" title="' . $GLOBALS['strPassword'] . '" onchange="pred_password.value = \'userdefined\';" />' . "\n"
       . '</div>' . "\n"
       . '<div class="item">' . "\n"
       . '<label for="text_pma_pw2">' . "\n"
       . '    ' . $GLOBALS['strReType'] . ':' . "\n"
       . '</label>' . "\n"
       . '<span class="options">&nbsp;</span>' . "\n"
       . '<input type="password" name="pma_pw2" id="text_pma_pw2" title="' . $GLOBALS['strReType'] . '" onchange="pred_password.value = \'userdefined\';" />' . "\n"
       . '</div>' . "\n"
       . '<div class="item">' . "\n"
       . '<label for="button_generate_password">' . "\n"
       . '    ' . $GLOBALS['strGeneratePassword'] . ':' . "\n"
       . '</label>' . "\n"
       . '<span class="options">' . "\n"
       . '    <input type="button" id="button_generate_password" value="' . $GLOBALS['strGenerate'] . '" onclick="suggestPassword()" />' . "\n"
       . '    <input type="button" id="button_copy_password" value="' . $GLOBALS['strCopy'] . '" onclick="suggestPasswordCopy(this.form)" />' . "\n"
       . '</span>' . "\n"
       . '<input type="text" name="generated_pw" id="generated_pw" />' . "\n"
       . '</div>' . "\n"
       . '</fieldset>' . "\n";
} // end of the 'PMA_displayUserAndHostFields()' function


/**
 * Changes / copies a user, part I
 */
if (isset($_REQUEST['change_copy'])) {
    $user_host_condition =
        ' WHERE `User`'
        .' = \'' . PMA_sqlAddslashes($old_username) . "'"
        .' AND `Host`'
        .' = \'' . $old_hostname . '\';';
    $row = PMA_DBI_fetch_single_row('SELECT * FROM `mysql`.`user` ' . $user_host_condition);
    if (! $row) {
        PMA_Message::notice('strNoUsersFound')->display();
        unset($_REQUEST['change_copy']);
    } else {
        extract($row, EXTR_OVERWRITE);
        // Recent MySQL versions have the field "Password" in mysql.user,
        // so the previous extract creates $Password but this script
        // uses $password
        if (!isset($password) && isset($Password)) {
            $password = $Password;
        }
        $queries = array();
    }
}


/**
 * Adds a user
 *   (Changes / copies a user, part II)
 */
if (isset($_REQUEST['adduser_submit']) || isset($_REQUEST['change_copy'])) {
    $sql_query = '';
    if ($pred_username == 'any') {
        $username = '';
    }
    switch ($pred_hostname) {
        case 'any':
            $hostname = '%';
            break;
        case 'localhost':
            $hostname = 'localhost';
            break;
        case 'hosttable':
            $hostname = '';
            break;
        case 'thishost':
            $_user_name = PMA_DBI_fetch_value('SELECT USER()');
            $hostname = substr($_user_name, (strrpos($_user_name, '@') + 1));
            unset($_user_name);
            break;
    }
    $sql = "SELECT '1' FROM `mysql`.`user`"
        . " WHERE `User` = '" . PMA_sqlAddslashes($username) . "'"
        . " AND `Host` = '" . PMA_sqlAddslashes($hostname) . "';";
    if (PMA_DBI_fetch_value($sql) == 1) {
        $message = PMA_Message::error('strUserAlreadyExists');
        $message->addParam('[i]\'' . $username . '\'@\'' . $hostname . '\'[/i]');
        $_REQUEST['adduser'] = true;
    } else {

        $create_user_real = 'CREATE USER \'' . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\'';

        $real_sql_query =
            'GRANT ' . join(', ', PMA_extractPrivInfo()) . ' ON *.* TO \''
            . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\'';
        if ($pred_password != 'none' && $pred_password != 'keep') {
            $sql_query = $real_sql_query . ' IDENTIFIED BY \'***\'';
            $real_sql_query .= ' IDENTIFIED BY \'' . PMA_sqlAddslashes($pma_pw) . '\'';
            if (isset($create_user_real)) {
                $create_user_show = $create_user_real . ' IDENTIFIED BY \'***\'';
                $create_user_real .= ' IDENTIFIED BY \'' . PMA_sqlAddslashes($pma_pw) . '\'';
            }
        } else {
            if ($pred_password == 'keep' && !empty($password)) {
                $real_sql_query .= ' IDENTIFIED BY PASSWORD \'' . $password . '\'';
                if (isset($create_user_real)) {
                    $create_user_real .= ' IDENTIFIED BY PASSWORD \'' . $password . '\'';
                }
            }
            $sql_query = $real_sql_query;
            if (isset($create_user_real)) {
                $create_user_show = $create_user_real;
            }
        }
        /**
         * @todo similar code appears twice in this script
         */
        if ((isset($Grant_priv) && $Grant_priv == 'Y')
         || (isset($max_questions) || isset($max_connections)
          || isset($max_updates) || isset($max_user_connections))) {
            $real_sql_query .= ' WITH';
            $sql_query .= ' WITH';
            if (isset($Grant_priv) && $Grant_priv == 'Y') {
                $real_sql_query .= ' GRANT OPTION';
                $sql_query .= ' GRANT OPTION';
            }
            if (isset($max_questions)) {
                // avoid negative values
                $max_questions = max(0, (int)$max_questions);
                $real_sql_query .= ' MAX_QUERIES_PER_HOUR ' . $max_questions;
                $sql_query .= ' MAX_QUERIES_PER_HOUR ' . $max_questions;
            }
            if (isset($max_connections)) {
                $max_connections = max(0, (int)$max_connections);
                $real_sql_query .= ' MAX_CONNECTIONS_PER_HOUR ' . $max_connections;
                $sql_query .= ' MAX_CONNECTIONS_PER_HOUR ' . $max_connections;
            }
            if (isset($max_updates)) {
                $max_updates = max(0, (int)$max_updates);
                $real_sql_query .= ' MAX_UPDATES_PER_HOUR ' . $max_updates;
                $sql_query .= ' MAX_UPDATES_PER_HOUR ' . $max_updates;
            }
            if (isset($max_user_connections)) {
                $max_user_connections = max(0, (int)$max_user_connections);
                $real_sql_query .= ' MAX_USER_CONNECTIONS ' . $max_user_connections;
                $sql_query .= ' MAX_USER_CONNECTIONS ' . $max_user_connections;
            }
        }
        if (isset($create_user_real)) {
            $create_user_real .= ';';
            $create_user_show .= ';';
        }
        $real_sql_query .= ';';
        $sql_query .= ';';
        if (empty($_REQUEST['change_copy'])) {
            $_error = false;

            if (isset($create_user_real)) {
                if (! PMA_DBI_try_query($create_user_real)) {
                    $_error = true;
                }
                $sql_query = $create_user_show . $sql_query;
            }

            if ($_error || ! PMA_DBI_try_query($real_sql_query)) {
                $_REQUEST['createdb'] = false;
                $message = PMA_Message::rawError(PMA_DBI_getError());
            } else {
                $message = PMA_Message::success('strAddUserMessage');
            }

            switch (PMA_ifSetOr($_REQUEST['createdb'], '0')) {
                case '1' :
                    $q = 'CREATE DATABASE IF NOT EXISTS '
                        . PMA_backquote(PMA_sqlAddslashes($username)) . ';';
                    $sql_query .= $q;
                    if (! PMA_DBI_try_query($q)) {
                        $message = PMA_Message::rawError(PMA_DBI_getError());
                        break;
                    }
                    $GLOBALS['reload'] = TRUE;
                    PMA_reloadNavigation();

                    $q = 'GRANT ALL PRIVILEGES ON '
                        . PMA_backquote(PMA_sqlAddslashes($username)) . '.* TO \''
                        . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\';';
                    $sql_query .= $q;
                    if (! PMA_DBI_try_query($q)) {
                        $message = PMA_Message::rawError(PMA_DBI_getError());
                    }
                    break;
                case '2' :
                    $q = 'GRANT ALL PRIVILEGES ON '
                        . PMA_backquote(PMA_sqlAddslashes($username) . '\_%') . '.* TO \''
                        . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\';';
                    $sql_query .= $q;
                    if (! PMA_DBI_try_query($q)) {
                        $message = PMA_Message::rawError(PMA_DBI_getError());
                    }
                    break;
                case '0' :
                default :
                    break;
            }
        } else {
            if (isset($create_user_real)) {
                $queries[]             = $create_user_real;
            }
            $queries[]             = $real_sql_query;
            // we put the query containing the hidden password in
            // $queries_for_display, at the same position occupied
            // by the real query in $queries
            $tmp_count = count($queries);
            if (isset($create_user_real)) {
                $queries_for_display[$tmp_count - 2] = $create_user_show;
            }
            $queries_for_display[$tmp_count - 1] = $sql_query;
        }
        unset($res, $real_sql_query);
    }
}


/**
 * Changes / copies a user, part III
 */
if (isset($_REQUEST['change_copy'])) {
    $user_host_condition =
        ' WHERE `User`'
        .' = \'' . PMA_sqlAddslashes($old_username) . "'"
        .' AND `Host`'
        .' = \'' . $old_hostname . '\';';
    $res = PMA_DBI_query('SELECT * FROM `mysql`.`db`' . $user_host_condition);
    while ($row = PMA_DBI_fetch_assoc($res)) {
        $queries[] =
            'GRANT ' . join(', ', PMA_extractPrivInfo($row))
            .' ON `' . $row['Db'] . '`.*'
            .' TO \'' . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\''
            . ($row['Grant_priv'] == 'Y' ? ' WITH GRANT OPTION;' : ';');
    }
    PMA_DBI_free_result($res);
    $res = PMA_DBI_query(
        'SELECT `Db`, `Table_name`, `Table_priv`'
        .' FROM `mysql`.`tables_priv`' . $user_host_condition,
        $GLOBALS['userlink'], PMA_DBI_QUERY_STORE);
    while ($row = PMA_DBI_fetch_assoc($res)) {

        $res2 = PMA_DBI_QUERY(
            'SELECT `Column_name`, `Column_priv`'
            .' FROM `mysql`.`columns_priv`'
            .' WHERE `User`'
            .' = \'' . PMA_sqlAddslashes($old_username) . "'"
            .' AND `Host`'
            .' = \'' . $old_hostname . '\''
            .' AND `Db`'
            .' = \'' . $row['Db'] . "'"
            .' AND `Table_name`'
            .' = \'' . $row['Table_name'] . "'"
            .';',
            null, PMA_DBI_QUERY_STORE);

        $tmp_privs1 = PMA_extractPrivInfo($row);
        $tmp_privs2 = array(
            'Select' => array(),
            'Insert' => array(),
            'Update' => array(),
            'References' => array()
        );

        while ($row2 = PMA_DBI_fetch_assoc($res2)) {
            $tmp_array = explode(',', $row2['Column_priv']);
            if (in_array('Select', $tmp_array)) {
                $tmp_privs2['Select'][] = $row2['Column_name'];
            }
            if (in_array('Insert', $tmp_array)) {
                $tmp_privs2['Insert'][] = $row2['Column_name'];
            }
            if (in_array('Update', $tmp_array)) {
                $tmp_privs2['Update'][] = $row2['Column_name'];
            }
            if (in_array('References', $tmp_array)) {
                $tmp_privs2['References'][] = $row2['Column_name'];
            }
            unset($tmp_array);
        }
        if (count($tmp_privs2['Select']) > 0 && !in_array('SELECT', $tmp_privs1)) {
            $tmp_privs1[] = 'SELECT (`' . join('`, `', $tmp_privs2['Select']) . '`)';
        }
        if (count($tmp_privs2['Insert']) > 0 && !in_array('INSERT', $tmp_privs1)) {
            $tmp_privs1[] = 'INSERT (`' . join('`, `', $tmp_privs2['Insert']) . '`)';
        }
        if (count($tmp_privs2['Update']) > 0 && !in_array('UPDATE', $tmp_privs1)) {
            $tmp_privs1[] = 'UPDATE (`' . join('`, `', $tmp_privs2['Update']) . '`)';
        }
        if (count($tmp_privs2['References']) > 0 && !in_array('REFERENCES', $tmp_privs1)) {
            $tmp_privs1[] = 'REFERENCES (`' . join('`, `', $tmp_privs2['References']) . '`)';
        }
        unset($tmp_privs2);
        $queries[] =
            'GRANT ' . join(', ', $tmp_privs1)
            . ' ON `' . $row['Db'] . '`.`' . $row['Table_name']
            . '` TO \'' . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\''
            . (in_array('Grant', explode(',', $row['Table_priv'])) ? ' WITH GRANT OPTION;' : ';');
    }
}


/**
 * Updates privileges
 */
if (!empty($update_privs)) {
    // escaping a wildcard character in a GRANT is only accepted at the global
    // or database level, not at table level; this is why I remove
    // the escaping character
    // Note: in the phpMyAdmin list of Database-specific privileges,
    //  we will have for example
    //  test\_db  SELECT (this one is for privileges on a db level)
    //  test_db   USAGE  (this one is for table-specific privileges)
    //
    // It looks curious but reflects the way MySQL works

    $sql_query0 =
        'REVOKE ALL PRIVILEGES ON ' . $db_and_table
        . ' FROM \'' . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\';';
    if (!isset($Grant_priv) || $Grant_priv != 'Y') {
        $sql_query1 =
            'REVOKE GRANT OPTION ON ' . $db_and_table
            . ' FROM \'' . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\';';
    } else {
        $sql_query1 = '';
    }
    $sql_query2 =
        'GRANT ' . join(', ', PMA_extractPrivInfo())
        . ' ON ' . $db_and_table
        . ' TO \'' . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\'';

    /**
     * @todo similar code appears twice in this script
     */
    if ((isset($Grant_priv) && $Grant_priv == 'Y')
     || (! isset($dbname)
      && (isset($max_questions) || isset($max_connections)
       || isset($max_updates) || isset($max_user_connections))))
    {
        $sql_query2 .= 'WITH';
        if (isset($Grant_priv) && $Grant_priv == 'Y') {
            $sql_query2 .= ' GRANT OPTION';
        }
        if (isset($max_questions)) {
            $max_questions = max(0, (int)$max_questions);
            $sql_query2 .= ' MAX_QUERIES_PER_HOUR ' . $max_questions;
        }
        if (isset($max_connections)) {
            $max_connections = max(0, (int)$max_connections);
            $sql_query2 .= ' MAX_CONNECTIONS_PER_HOUR ' . $max_connections;
        }
        if (isset($max_updates)) {
            $max_updates = max(0, (int)$max_updates);
            $sql_query2 .= ' MAX_UPDATES_PER_HOUR ' . $max_updates;
        }
        if (isset($max_user_connections)) {
            $max_user_connections = max(0, (int)$max_user_connections);
            $sql_query2 .= ' MAX_USER_CONNECTIONS ' . $max_user_connections;
        }
    }
    $sql_query2 .= ';';
    if (!PMA_DBI_try_query($sql_query0)) {
        // this query may fail, but this does not matter :o)
        // a case when it can fail is when the admin does not have all
        // privileges: he can't do a REVOKE ALL PRIVILEGES !
        // so at least we display the error
        echo PMA_DBI_getError();
        $sql_query0 = '';
    }
    if (isset($sql_query1) && !PMA_DBI_try_query($sql_query1)) {
        // this one may fail, too...
        $sql_query1 = '';
    }
    PMA_DBI_query($sql_query2);
    $sql_query = $sql_query0 . ' ' . $sql_query1 . ' ' . $sql_query2;
    $message = PMA_Message::success('strUpdatePrivMessage');
    $message->addParam('\'' . $username . '\'@\'' . $hostname . '\'');
}


/**
 * Revokes Privileges
 */
if (isset($_REQUEST['revokeall'])) {

    $sql_query0 =
        'REVOKE ALL PRIVILEGES ON ' . $db_and_table
        . ' FROM \'' . $username . '\'@\'' . $hostname . '\';';
    $sql_query1 =
        'REVOKE GRANT OPTION ON ' . $db_and_table
        . ' FROM \'' . $username . '\'@\'' . $hostname . '\';';
    PMA_DBI_query($sql_query0);
    if (!PMA_DBI_try_query($sql_query1)) {
        // this one may fail, too...
        $sql_query1 = '';
    }
    $sql_query = $sql_query0 . ' ' . $sql_query1;
    $message = PMA_Message::success('strRevokeMessage');
    $message->addParam('\'' . $username . '\'@\'' . $hostname . '\'');
    if (! isset($tablename)) {
        unset($dbname);
    } else {
        unset($tablename);
    }
}


/**
 * Updates the password
 */
if (isset($_REQUEST['change_pw'])) {
    // similar logic in user_password.php
    $message = '';

    if ($nopass == 0 && isset($pma_pw) && isset($pma_pw2)) {
        if ($pma_pw != $pma_pw2) {
            $message = PMA_Message::error('strPasswordNotSame');
        } elseif (empty($pma_pw) || empty($pma_pw2)) {
            $message = PMA_Message::error('strPasswordEmpty');
        }
    } // end if

    // here $nopass could be == 1
    if (empty($message)) {

        $hashing_function = (!empty($pw_hash) && $pw_hash == 'old' ? 'OLD_' : '')
                      . 'PASSWORD';

        // in $sql_query which will be displayed, hide the password
        $sql_query        = 'SET PASSWORD FOR \'' . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\' = ' . (($pma_pw == '') ? '\'\'' : $hashing_function . '(\'' . preg_replace('@.@s', '*', $pma_pw) . '\')');
        $local_query      = 'SET PASSWORD FOR \'' . PMA_sqlAddslashes($username) . '\'@\'' . $hostname . '\' = ' . (($pma_pw == '') ? '\'\'' : $hashing_function . '(\'' . PMA_sqlAddslashes($pma_pw) . '\')');
        PMA_DBI_try_query($local_query)
            or PMA_mysqlDie(PMA_DBI_getError(), $sql_query, FALSE, $err_url);
        $message = PMA_Message::success('strPasswordChanged');
        $message->addParam('\'' . $username . '\'@\'' . $hostname . '\'');
    }
}


/**
 * Deletes users
 *   (Changes / copies a user, part IV)
 */
$user_host_separator = chr(27);

if (isset($_REQUEST['delete']) || (isset($_REQUEST['change_copy']) && $_REQUEST['mode'] < 4)) {
    if (isset($_REQUEST['change_copy'])) {
        $selected_usr = array($old_username . $user_host_separator . $old_hostname);
    } else {
        $selected_usr = $_REQUEST['selected_usr'];
        $queries = array();
    }
    foreach ($selected_usr as $each_user) {
        list($this_user, $this_host) = explode($user_host_separator, $each_user);
        $queries[] = '# ' . sprintf($GLOBALS['strDeleting'], '\'' . $this_user . '\'@\'' . $this_host . '\'') . ' ...';
        $queries[] = 'DROP USER \'' . PMA_sqlAddslashes($this_user) . '\'@\'' . $this_host . '\';';

        if (isset($_REQUEST['drop_users_db'])) {
            $queries[] = 'DROP DATABASE IF EXISTS ' . PMA_backquote($this_user) . ';';
            $GLOBALS['reload'] = TRUE;
            PMA_reloadNavigation();
        }
    }
    if (empty($_REQUEST['change_copy'])) {
        if (empty($queries)) {
            $message = PMA_Message::error('strDeleteNoUsersSelected');
        } else {
            if ($_REQUEST['mode'] == 3) {
                $queries[] = '# ' . $GLOBALS['strReloadingThePrivileges'] . ' ...';
                $queries[] = 'FLUSH PRIVILEGES;';
            }
            $drop_user_error = '';
            foreach ($queries as $sql_query) {
                if ($sql_query{0} != '#') {
                    if (! PMA_DBI_try_query($sql_query, $GLOBALS['userlink'])) {
                        $drop_user_error .= PMA_DBI_getError() . "\n";
                    }
                }
            }
            $sql_query = join("\n", $queries);
            if (! empty($drop_user_error)) {
                $message = PMA_Message::rawError($drop_user_error);
            } else {
                $message = PMA_Message::success('strUsersDeleted');
            }
        }
        unset($queries);
    }
}


/**
 * Changes / copies a user, part V
 */
if (isset($_REQUEST['change_copy'])) {
    $tmp_count = 0;
    foreach ($queries as $sql_query) {
        if ($sql_query{0} != '#') {
            PMA_DBI_query($sql_query);
        }
        // when there is a query containing a hidden password, take it
        // instead of the real query sent
        if (isset($queries_for_display[$tmp_count])) {
            $queries[$tmp_count] = $queries_for_display[$tmp_count];
        }
        $tmp_count++;
    }
    $message = PMA_Message::success();
    $sql_query = join("\n", $queries);
}


/**
 * Reloads the privilege tables into memory
 */
if (isset($_REQUEST['flush_privileges'])) {
    $sql_query = 'FLUSH PRIVILEGES;';
    PMA_DBI_query($sql_query);
    $message = PMA_Message::success('strPrivilegesReloaded');
}


/**
 * Displays the links
 */
if (isset($viewing_mode) && $viewing_mode == 'db') {
    $db = $checkprivs;
    $url_query .= '&amp;goto=db_operations.php';

    // Gets the database structure
    $sub_part = '_structure';
    require './libraries/db_info.inc.php';
    echo "\n";
} else {
    require './libraries/server_links.inc.php';
}


/**
 * defines some standard links
 */
$link_edit = '<a href="server_privileges.php?' . $GLOBALS['url_query']
    . '&amp;username=%s'
    . '&amp;hostname=%s'
    . '&amp;dbname=%s'
    . '&amp;tablename=%s">'
    . PMA_getIcon('b_usredit.png', $GLOBALS['strEditPrivileges'])
    . '</a>';

$link_revoke = '<a href="server_privileges.php?' . $GLOBALS['url_query']
    . '&amp;username=%s'
    . '&amp;hostname=%s'
    . '&amp;dbname=%s'
    . '&amp;tablename=%s'
    . '&amp;revokeall=1">'
    . PMA_getIcon('b_usrdrop.png', $GLOBALS['strRevoke'])
    . '</a>';

/**
 * Displays the page
 */
if (empty($_REQUEST['adduser']) && (! isset($checkprivs) || ! strlen($checkprivs))) {
    if (! isset($username)) {
        // No username is given --> display the overview
        echo '<h2>' . "\n"
           . PMA_getIcon('b_usrlist.png')
           . $GLOBALS['strUserOverview'] . "\n"
           . '</h2>' . "\n";

        $sql_query =
            'SELECT *,' .
            "       IF(`Password` = _latin1 '', 'N', 'Y') AS 'Password'" .
            '  FROM `mysql`.`user`';

        $sql_query .= (isset($initial) ? PMA_RangeOfUsers($initial) : '');

        $sql_query .= ' ORDER BY `User` ASC, `Host` ASC;';
        $res = PMA_DBI_try_query($sql_query, null, PMA_DBI_QUERY_STORE);

        if (! $res) {
            // the query failed! This may have two reasons:
            // - the user does not have enough privileges
            // - the privilege tables use a structure of an earlier version.
            // so let's try a more simple query

            $sql_query = 'SELECT * FROM `mysql`.`user`';
            $res = PMA_DBI_try_query($sql_query, null, PMA_DBI_QUERY_STORE);

            if (!$res) {
                PMA_Message::error('strNoPrivileges')->display();
                PMA_DBI_free_result($res);
                unset($res);
            } else {
                // rabus: This message is hardcoded because I will replace it by
                // a automatic repair feature soon.
                $raw = 'Your privilege table structure seems to be older than'
                    . ' this MySQL version!<br />'
                    . 'Please run the script <tt>mysql_fix_privilege_tables</tt>'
                    . ' that should be included in your MySQL server distribution'
                    . ' to solve this problem!';
                PMA_Message::rawError($raw)->display();
            }
        } else {

            // we also want users not in table `user` but in other table
            $tables = PMA_DBI_fetch_result('SHOW TABLES FROM `mysql`;');

            $tables_to_search_for_users = array(
                'user', 'db', 'tables_priv', 'columns_priv', 'procs_priv',
            );

            $db_rights_sqls = array();
            foreach ($tables_to_search_for_users as $table_search_in) {
                if (in_array($table_search_in, $tables)) {
                    $db_rights_sqls[] = 'SELECT DISTINCT `User`, `Host` FROM `mysql`.`' . $table_search_in . '` ' . (isset($initial) ? PMA_RangeOfUsers($initial) : '');
                }
            }

            $user_defaults = array(
                'User'      => '',
                'Host'      => '%',
                'Password'  => '?',
                'Grant_priv' => 'N',
                'privs'     => array('USAGE'),
            );

            // for all initials, even non A-Z
            $array_initials = array();
            // for the rights
            $db_rights = array();

            $db_rights_sql = '(' . implode(') UNION (', $db_rights_sqls) . ')'
                .' ORDER BY `User` ASC, `Host` ASC';

            $db_rights_result = PMA_DBI_query($db_rights_sql);

            while ($db_rights_row = PMA_DBI_fetch_assoc($db_rights_result)) {
                $db_rights_row = array_merge($user_defaults, $db_rights_row);
                $db_rights[$db_rights_row['User']][$db_rights_row['Host']] =
                    $db_rights_row;
            }
            PMA_DBI_free_result($db_rights_result);
            unset($db_rights_sql, $db_rights_sqls, $db_rights_result, $db_rights_row);
            ksort($db_rights);

            /**
             * Displays the initials
             */

            // initialize to FALSE the letters A-Z
            for ($letter_counter = 1; $letter_counter < 27; $letter_counter++) {
                if (! isset($array_initials[chr($letter_counter + 64)])) {
                    $array_initials[chr($letter_counter + 64)] = FALSE;
                }
            }

            $initials = PMA_DBI_try_query('SELECT DISTINCT UPPER(LEFT(`User`,1)) FROM `user` ORDER BY `User` ASC', null, PMA_DBI_QUERY_STORE);
            while (list($tmp_initial) = PMA_DBI_fetch_row($initials)) {
                $array_initials[$tmp_initial] = TRUE;
            }

            // Display the initials, which can be any characters, not
            // just letters. For letters A-Z, we add the non-used letters
            // as greyed out.

            uksort($array_initials, "strnatcasecmp");

            echo '<table cellspacing="5"><tr>';
            foreach ($array_initials as $tmp_initial => $initial_was_found) {
                if ($initial_was_found) {
                    echo '<td><a href="server_privileges.php?' . $GLOBALS['url_query'] . '&amp;initial=' . urlencode($tmp_initial) . '">' . $tmp_initial . '</a></td>' . "\n";
                } else {
                    echo '<td>' . $tmp_initial . '</td>';
                }
            }
            echo '<td><a href="server_privileges.php?' . $GLOBALS['url_query'] . '&amp;showall=1">[' . $GLOBALS['strShowAll'] . ']</a></td>' . "\n";
            echo '</tr></table>';

            /**
            * Display the user overview
            * (if less than 50 users, display them immediately)
            */

            if (isset($initial) || isset($showall) || PMA_DBI_num_rows($res) < 50) {

                while ($row = PMA_DBI_fetch_assoc($res)) {
                    $row['privs'] = PMA_extractPrivInfo($row, true);
                    $db_rights[$row['User']][$row['Host']] = $row;
                }
                @PMA_DBI_free_result($res);
                unset($res);

                echo '<form name="usersForm" id="usersForm" action="server_privileges.php" method="post">' . "\n"
                   . PMA_generate_common_hidden_inputs('', '')
                   . '    <table id="tableuserrights" class="data">' . "\n"
                   . '    <thead>' . "\n"
                   . '        <tr><td></td>' . "\n"
                   . '            <th>' . $GLOBALS['strUser'] . '</th>' . "\n"
                   . '            <th>' . $GLOBALS['strHost'] . '</th>' . "\n"
                   . '            <th>' . $GLOBALS['strPassword'] . '</th>' . "\n"
                   . '            <th>' . $GLOBALS['strGlobalPrivileges'] . ' '
                   . PMA_showHint($GLOBALS['strEnglishPrivileges']) . '</th>' . "\n"
                   . '            <th>' . $GLOBALS['strGrantOption'] . '</th>' . "\n"
                   . '            ' . ($GLOBALS['cfg']['PropertiesIconic'] ? '<td></td>' : '<th>' . $GLOBALS['strAction'] . '</th>') . "\n";
                echo '        </tr>' . "\n";
                echo '    </thead>' . "\n";
                echo '    <tbody>' . "\n";
                $odd_row = true;
                $index_checkbox = -1;
                foreach ($db_rights as $user) {
                    $index_checkbox++;
                    ksort($user);
                    foreach ($user as $host) {
                        $index_checkbox++;
                        echo '        <tr class="' . ($odd_row ? 'odd' : 'even') . '">' . "\n"
                           . '            <td><input type="checkbox" name="selected_usr[]" id="checkbox_sel_users_'
                            . $index_checkbox . '" value="'
                            . str_replace(chr(27), '&#27;', htmlspecialchars($host['User'] . $user_host_separator . $host['Host']))
                            . '"'
                            . (empty($GLOBALS['checkall']) ?  '' : ' checked="checked"')
                            . ' /></td>' . "\n"
                           . '            <td><label for="checkbox_sel_users_' . $index_checkbox . '">' . (empty($host['User']) ? '<span style="color: #FF0000">' . $GLOBALS['strAny'] . '</span>' : htmlspecialchars($host['User'])) . '</label></td>' . "\n"
                           . '            <td>' . htmlspecialchars($host['Host']) . '</td>' . "\n";
                        echo '            <td>';
                        switch ($host['Password']) {
                            case 'Y':
                                echo $GLOBALS['strYes'];
                                break;
                            case 'N':
                                echo '<span style="color: #FF0000">' . $GLOBALS['strNo'] . '</span>';
                                break;
                            // this happens if this is a definition not coming from mysql.user
                            default:
                                echo '--'; // in future version, replace by "not present"
                                break;
                        } // end switch
                        echo '</td>' . "\n"
                           . '            <td><tt>' . "\n"
                           . '                ' . implode(',' . "\n" . '            ', $host['privs']) . "\n"
                           . '                </tt></td>' . "\n"
                           . '            <td>' . ($host['Grant_priv'] == 'Y' ? $GLOBALS['strYes'] : $GLOBALS['strNo']) . '</td>' . "\n"
                           . '            <td align="center">';
                        printf($link_edit, urlencode($host['User']),
                            urlencode($host['Host']), '', '');
                        echo '</td>' . "\n"
                           . '        </tr>' . "\n";
                        $odd_row = ! $odd_row;
                    }
                }

                unset($user, $host, $odd_row);
                echo '    </tbody></table>' . "\n"
                   .'<img class="selectallarrow"'
                   .' src="' . $pmaThemeImage . 'arrow_' . $text_dir . '.png"'
                   .' width="38" height="22"'
                   .' alt="' . $GLOBALS['strWithChecked'] . '" />' . "\n"
                   .'<a href="server_privileges.php?' . $GLOBALS['url_query'] .  '&amp;checkall=1"'
                   .' onclick="if (markAllRows(\'usersForm\')) return false;">'
                   . $GLOBALS['strCheckAll'] . '</a>' . "\n"
                   .'/' . "\n"
                   .'<a href="server_privileges.php?' . $GLOBALS['url_query'] .  '"'
                   .' onclick="if (unMarkAllRows(\'usersForm\')) return false;">'
                   . $GLOBALS['strUncheckAll'] . '</a>' . "\n";

                // add/delete user fieldset
                echo '    <fieldset id="fieldset_add_user">' . "\n"
                   . '        <a href="server_privileges.php?' . $GLOBALS['url_query'] . '&amp;adduser=1">' . "\n"
                   . PMA_getIcon('b_usradd.png')
                   . '            ' . $GLOBALS['strAddUser'] . '</a>' . "\n"
                   . '    </fieldset>' . "\n"
                   . '    <fieldset id="fieldset_delete_user">'
                   . '        <legend>' . "\n"
                   . PMA_getIcon('b_usrdrop.png')
                   . '            ' . $GLOBALS['strRemoveSelectedUsers'] . '' . "\n"
                   . '        </legend>' . "\n"
                   . '        <input type="hidden" name="mode" value="2" />' . "\n"
                   . '(' . $GLOBALS['strRevokeAndDelete'] . ')<br />' . "\n"
                   . '        <input type="checkbox" title="' . $GLOBALS['strDropUsersDb'] . '" name="drop_users_db" id="checkbox_drop_users_db" />' . "\n"
                   . '        <label for="checkbox_drop_users_db" title="' . $GLOBALS['strDropUsersDb'] . '">' . "\n"
                   . '            ' . $GLOBALS['strDropUsersDb'] . "\n"
                   . '        </label>' . "\n"
                   . '    </fieldset>' . "\n"
                   . '    <fieldset id="fieldset_delete_user_footer" class="tblFooters">' . "\n"
                   . '        <input type="submit" name="delete" value="' . $GLOBALS['strGo'] . '" id="buttonGo" />' . "\n"
                   . '    </fieldset>' . "\n";
            } else {

                unset ($row);
                echo '    <fieldset id="fieldset_add_user">' . "\n"
                   . '        <a href="server_privileges.php?' . $GLOBALS['url_query'] . '&amp;adduser=1">' . "\n"
                   . PMA_getIcon('b_usradd.png')
                   . '            ' . $GLOBALS['strAddUser'] . '</a>' . "\n"
                   . '    </fieldset>' . "\n";
            } // end if (display overview)
            echo '</form>' . "\n";
            $flushnote = new PMA_Message('strFlushPrivilegesNote', PMA_Message::NOTICE);
            $flushnote->addParam('<a href="server_privileges.php?' . $GLOBALS['url_query'] . '&amp;flush_privileges=1">', false);
            $flushnote->addParam('</a>', false);
            $flushnote->display();
         }


    } else {

        // A user was selected -> display the user's properties

        echo '<h2>' . "\n"
           . PMA_getIcon('b_usredit.png')
           . $GLOBALS['strUser'] . ' <i><a href="server_privileges.php?'
           . $GLOBALS['url_query'] . '&amp;username=' . urlencode($username)
           . '&amp;hostname=' . urlencode($hostname) . '">\''
           . htmlspecialchars($username) . '\'@\'' . htmlspecialchars($hostname)
           . '\'</a></i>' . "\n";
        if (isset($dbname)) {
            if ($dbname_is_wildcard) {
                echo '    - ' . $GLOBALS['strDatabases'];
            } else {
                echo '    - ' . $GLOBALS['strDatabase'];
            }
            $url_dbname = urlencode(str_replace('\_', '_', $dbname));
            echo ' <i><a href="' . $GLOBALS['cfg']['DefaultTabDatabase'] . '?'
                . $GLOBALS['url_query'] . '&amp;db=' . $url_dbname . '&amp;reload=1">'
                . htmlspecialchars($dbname) . '</a></i>' . "\n";
            if (isset($tablename)) {
                echo '    - ' . $GLOBALS['strTable'] . ' <i><a href="'
                    . $GLOBALS['cfg']['DefaultTabTable'] . '?' . $GLOBALS['url_query']
                    . '&amp;db=' . $url_dbname . '&amp;table=' . urlencode($tablename)
                    . '&amp;reload=1">' . htmlspecialchars($tablename) . '</a></i>'
                    . "\n";
            }
            unset($url_dbname);
        }
        echo ' : ' . $GLOBALS['strEditPrivileges'] . '</h2>' . "\n";

        $sql = "SELECT '1' FROM `mysql`.`user`"
            . " WHERE `User` = '" . PMA_sqlAddslashes($username) . "'"
            . " AND `Host` = '" . PMA_sqlAddslashes($hostname) . "';";
        $user_does_not_exists = (bool) ! PMA_DBI_fetch_value($sql);
        unset($sql);
        if ($user_does_not_exists) {
            PMA_Message::warning('strUserNotFound')->display();
            PMA_displayLoginInformationFields();
            //require_once './libraries/footer.inc.php';
        }

        echo '<form name="usersForm" id="usersForm" action="server_privileges.php" method="post">' . "\n";
        $_params = array(
            'username' => $username,
            'hostname' => $hostname,
        );
        if (isset($dbname)) {
            $_params['dbname'] = $dbname;
            if (isset($tablename)) {
                $_params['tablename'] = $tablename;
            }
        }
        echo PMA_generate_common_hidden_inputs($_params);

        PMA_displayPrivTable(PMA_ifSetOr($dbname, '*', 'length'),
            PMA_ifSetOr($tablename, '*', 'length'));

        echo '</form>' . "\n";

        if (! isset($tablename) && empty($dbname_is_wildcard)) {

            // no table name was given, display all table specific rights
            // but only if $dbname contains no wildcards

            // table header
            echo '<form action="server_privileges.php" method="post">' . "\n"
               . PMA_generate_common_hidden_inputs('', '')
               . '<input type="hidden" name="username" value="' . htmlspecialchars($username) . '" />' . "\n"
               . '<input type="hidden" name="hostname" value="' . htmlspecialchars($hostname) . '" />' . "\n"
               . '<fieldset>' . "\n"
               . '<legend>' . (! isset($dbname) ? $GLOBALS['strDbPrivileges'] : $GLOBALS['strTblPrivileges']) . '</legend>' . "\n"
               . '<table class="data">' . "\n"
               . '<thead>' . "\n"
               . '<tr><th>' . (! isset($dbname) ? $GLOBALS['strDatabase'] : $GLOBALS['strTable']) . '</th>' . "\n"
               . '    <th>' . $GLOBALS['strPrivileges'] . '</th>' . "\n"
               . '    <th>' . $GLOBALS['strGrantOption'] . '</th>' . "\n"
               . '    <th>' . (! isset($dbname) ? $GLOBALS['strTblPrivileges'] : $GLOBALS['strColumnPrivileges']) . '</th>' . "\n"
               . '    <th colspan="2">' . $GLOBALS['strAction'] . '</th>' . "\n"
               . '</tr>' . "\n"
               . '</thead>' . "\n"
               . '<tbody>' . "\n";

            $user_host_condition =
                ' WHERE `User`'
                . ' = \'' . PMA_sqlAddslashes($username) . "'"
                . ' AND `Host`'
                . ' = \'' . PMA_sqlAddslashes($hostname) . "'";

            // table body
            // get data

            // we also want privielgs for this user not in table `db` but in other table
            $tables = PMA_DBI_fetch_result('SHOW TABLES FROM `mysql`;');
            if (! isset($dbname)) {

                // no db name given, so we want all privs for the given user

                $tables_to_search_for_users = array(
                    'tables_priv', 'columns_priv',
                );

                $db_rights_sqls = array();
                foreach ($tables_to_search_for_users as $table_search_in) {
                    if (in_array($table_search_in, $tables)) {
                        $db_rights_sqls[] = '
                            SELECT DISTINCT `Db`
                                   FROM `mysql`.`' . $table_search_in . '`
                                  ' . $user_host_condition;
                    }
                }

                $user_defaults = array(
                    'Db'          => '',
                    'Grant_priv'  => 'N',
                    'privs'       => array('USAGE'),
                    'Table_privs' => true,
                );

                // for the rights
                $db_rights = array();

                $db_rights_sql = '(' . implode(') UNION (', $db_rights_sqls) . ')'
                    .' ORDER BY `Db` ASC';

                $db_rights_result = PMA_DBI_query($db_rights_sql);

                while ($db_rights_row = PMA_DBI_fetch_assoc($db_rights_result)) {
                    $db_rights_row = array_merge($user_defaults, $db_rights_row);
                    // only Db names in the table `mysql`.`db` uses wildcards
                    // as we are in the db specific rights display we want
                    // all db names escaped, also from other sources
                    $db_rights_row['Db'] = PMA_escape_mysql_wildcards(
                        $db_rights_row['Db']);
                    $db_rights[$db_rights_row['Db']] = $db_rights_row;
                }

                PMA_DBI_free_result($db_rights_result);
                unset($db_rights_sql, $db_rights_sqls, $db_rights_result, $db_rights_row);

                $sql_query = 'SELECT * FROM `mysql`.`db`' . $user_host_condition . ' ORDER BY `Db` ASC';
                $res = PMA_DBI_query($sql_query);
                $sql_query = '';

                while ($row = PMA_DBI_fetch_assoc($res)) {
                    if (isset($db_rights[$row['Db']])) {
                        $db_rights[$row['Db']] = array_merge($db_rights[$row['Db']], $row);
                    } else {
                        $db_rights[$row['Db']] = $row;
                    }
                    // there are db specific rights for this user
                    // so we can drop this db rights
                    $db_rights[$row['Db']]['can_delete'] = true;
                }
                PMA_DBI_free_result($res);
                unset($row, $res);

            } else {

                // db name was given,
                // so we want all user specific rights for this db

                $user_host_condition .=
                    ' AND `Db`'
                    .' LIKE \'' . $dbname . "'";

                $tables_to_search_for_users = array(
                    'columns_priv',
                );

                $db_rights_sqls = array();
                foreach ($tables_to_search_for_users as $table_search_in) {
                    if (in_array($table_search_in, $tables)) {
                        $db_rights_sqls[] = '
                            SELECT DISTINCT `Table_name`
                                   FROM `mysql`.`' . $table_search_in . '`
                                  ' . $user_host_condition;
                    }
                }

                $user_defaults = array(
                    'Table_name'  => '',
                    'Grant_priv'  => 'N',
                    'privs'       => array('USAGE'),
                    'Column_priv' => true,
                );

                // for the rights
                $db_rights = array();

                $db_rights_sql = '(' . implode(') UNION (', $db_rights_sqls) . ')'
                    .' ORDER BY `Table_name` ASC';

                $db_rights_result = PMA_DBI_query($db_rights_sql);

                while ($db_rights_row = PMA_DBI_fetch_assoc($db_rights_result)) {
                    $db_rights_row = array_merge($user_defaults, $db_rights_row);
                    $db_rights[$db_rights_row['Table_name']] = $db_rights_row;
                }
                PMA_DBI_free_result($db_rights_result);
                unset($db_rights_sql, $db_rights_sqls, $db_rights_result, $db_rights_row);

                $sql_query =
                    'SELECT `Table_name`,'
                    .' `Table_priv`,'
                    .' IF(`Column_priv` = _latin1 \'\', 0, 1)'
                    .' AS \'Column_priv\''
                    .' FROM `mysql`.`tables_priv`'
                    . $user_host_condition
                    .' ORDER BY `Table_name` ASC;';
                $res = PMA_DBI_query($sql_query);
                $sql_query = '';

                while ($row = PMA_DBI_fetch_assoc($res)) {
                    if (isset($db_rights[$row['Table_name']])) {
                        $db_rights[$row['Table_name']] = array_merge($db_rights[$row['Table_name']], $row);
                    } else {
                        $db_rights[$row['Table_name']] = $row;
                    }
                }
                PMA_DBI_free_result($res);
                unset($row, $res);
            }
            ksort($db_rights);

            // display rows
            if (count($db_rights) < 1) {
                echo '<tr class="odd">' . "\n"
                   . '    <td colspan="6"><center><i>' . $GLOBALS['strNone'] . '</i></center></td>' . "\n"
                   . '</tr>' . "\n";
            } else {
                $odd_row = true;
                $found_rows = array();
                //while ($row = PMA_DBI_fetch_assoc($res)) {
                foreach ($db_rights as $row) {
                    $found_rows[] = (! isset($dbname)) ? $row['Db'] : $row['Table_name'];

                    echo '<tr class="' . ($odd_row ? 'odd' : 'even') . '">' . "\n"
                       . '    <td>' . htmlspecialchars((! isset($dbname)) ? $row['Db'] : $row['Table_name']) . '</td>' . "\n"
                       . '    <td><tt>' . "\n"
                       . '        ' . join(',' . "\n" . '            ', PMA_extractPrivInfo($row, TRUE)) . "\n"
                       . '        </tt></td>' . "\n"
                       . '    <td>' . ((((! isset($dbname)) && $row['Grant_priv'] == 'Y') || (isset($dbname) && in_array('Grant', explode(',', $row['Table_priv'])))) ? $GLOBALS['strYes'] : $GLOBALS['strNo']) . '</td>' . "\n"
                       . '    <td>';
                    if (! empty($row['Table_privs']) || ! empty ($row['Column_priv'])) {
                        echo $GLOBALS['strYes'];
                    } else {
                        echo $GLOBALS['strNo'];
                    }
                    echo '</td>' . "\n"
                       . '    <td>';
                    printf($link_edit, urlencode($username),
                        urlencode($hostname),
                        urlencode((! isset($dbname)) ? $row['Db'] : $dbname),
                        urlencode((! isset($dbname)) ? '' : $row['Table_name']));
                    echo '</td>' . "\n"
                       . '    <td>';
                    if (! empty($row['can_delete']) || isset($row['Table_name']) && strlen($row['Table_name'])) {
                        printf($link_revoke, urlencode($username),
                            urlencode($hostname),
                            urlencode((! isset($dbname)) ? $row['Db'] : $dbname),
                            urlencode((! isset($dbname)) ? '' : $row['Table_name']));
                    }
                    echo '</td>' . "\n"
                       . '</tr>' . "\n";
                    $odd_row = ! $odd_row;
                } // end while
            }
            unset($row);
            echo '</tbody>' . "\n"
               . '</table>' . "\n";

            if (! isset($dbname)) {

                // no database name was give, display select db

                if (! empty($found_rows)) {
                    $pred_db_array = array_diff(
                        PMA_DBI_fetch_result('SHOW DATABASES;'),
                        $found_rows);
                } else {
                    $pred_db_array =PMA_DBI_fetch_result('SHOW DATABASES;');
                }

                echo '    <label for="text_dbname">' . $GLOBALS['strAddPrivilegesOnDb'] . ':</label>' . "\n";
                if (!empty($pred_db_array)) {
                    echo '    <select name="pred_dbname" onchange="this.form.submit();">' . "\n"
                       . '        <option value="" selected="selected">' . $GLOBALS['strUseTextField'] . ':</option>' . "\n";
                    foreach ($pred_db_array as $current_db) {
                        $current_db = PMA_escape_mysql_wildcards($current_db);
                        echo '        <option value="' . htmlspecialchars($current_db) . '">'
                            . htmlspecialchars($current_db) . '</option>' . "\n";
                    }
                    echo '    </select>' . "\n";
                }
                echo '    <input type="text" id="text_dbname" name="dbname" />' . "\n"
                    . PMA_showHint($GLOBALS['strEscapeWildcards']);
            } else {
                echo '    <input type="hidden" name="dbname" value="' . htmlspecialchars($dbname) . '"/>' . "\n"
                   . '    <label for="text_tablename">' . $GLOBALS['strAddPrivilegesOnTbl'] . ':</label>' . "\n";
                if ($res = @PMA_DBI_try_query('SHOW TABLES FROM ' . PMA_backquote($dbname) . ';', null, PMA_DBI_QUERY_STORE)) {
                    $pred_tbl_array = array();
                    while ($row = PMA_DBI_fetch_row($res)) {
                        if (!isset($found_rows) || !in_array($row[0], $found_rows)) {
                            $pred_tbl_array[] = $row[0];
                        }
                    }
                    PMA_DBI_free_result($res);
                    unset($res, $row);
                    if (!empty($pred_tbl_array)) {
                        echo '    <select name="pred_tablename" onchange="this.form.submit();">' . "\n"
                           . '        <option value="" selected="selected">' . $GLOBALS['strUseTextField'] . ':</option>' . "\n";
                        foreach ($pred_tbl_array as $current_table) {
                            echo '        <option value="' . htmlspecialchars($current_table) . '">' . htmlspecialchars($current_table) . '</option>' . "\n";
                        }
                        echo '    </select>' . "\n";
                    }
                } else {
                    unset($res);
                }
                echo '    <input type="text" id="text_tablename" name="tablename" />' . "\n";
            }
            echo '</fieldset>' . "\n";
            echo '<fieldset class="tblFooters">' . "\n"
               . '    <input type="submit" value="' . $GLOBALS['strGo'] . '" />'
               . '</fieldset>' . "\n"
               . '</form>' . "\n";
        }

        if (! isset($dbname) && ! $user_does_not_exists) {
            require_once './libraries/display_change_password.lib.php';

            echo '<form action="server_privileges.php" method="post" onsubmit="return checkPassword(this);">' . "\n"
               . PMA_generate_common_hidden_inputs('', '')
               . '<input type="hidden" name="old_username" value="' . htmlspecialchars($username) . '" />' . "\n"
               . '<input type="hidden" name="old_hostname" value="' . htmlspecialchars($hostname) . '" />' . "\n"
               . '<fieldset id="fieldset_change_copy_user">' . "\n"
               . '    <legend>' . $GLOBALS['strChangeCopyUser'] . '</legend>' . "\n";
            PMA_displayLoginInformationFields('change');
            echo '    <fieldset>' . "\n"
                . '        <legend>' . $GLOBALS['strChangeCopyMode'] . '</legend>' . "\n";
            $choices = array(
                '4' => $GLOBALS['strChangeCopyModeCopy'],
                '1' => $GLOBALS['strChangeCopyModeJustDelete'],
                '2' => $GLOBALS['strChangeCopyModeRevoke'],
                '3' => $GLOBALS['strChangeCopyModeDeleteAndReload']);
            PMA_generate_html_radio('mode', $choices, '4', true);
            unset($choices);

            echo '    </fieldset>' . "\n"
               . '</fieldset>' . "\n"
               . '<fieldset id="fieldset_change_copy_user_footer" class="tblFooters">' . "\n"
               . '    <input type="submit" name="change_copy" value="' . $GLOBALS['strGo'] . '" />' . "\n"
               . '</fieldset>' . "\n"
               . '</form>' . "\n";
        }
    }
} elseif (isset($_REQUEST['adduser'])) {
    // Add a new user
    $GLOBALS['url_query'] .= '&amp;adduser=1';
    echo '<h2>' . "\n"
       . PMA_getIcon('b_usradd.png') . $GLOBALS['strAddUser'] . "\n"
       . '</h2>' . "\n"
       . '<form name="usersForm" id="usersForm" action="server_privileges.php" method="post" onsubmit="return checkAddUser(this);">' . "\n"
       . PMA_generate_common_hidden_inputs('', '');
    PMA_displayLoginInformationFields('new');
    echo '<fieldset id="fieldset_add_user_database">' . "\n"
        . '<legend>' . $GLOBALS['strCreateUserDatabase'] . '</legend>' . "\n";

    $choices = array(
        '0' => $GLOBALS['strCreateUserDatabaseNone'],
        '1' => $GLOBALS['strCreateUserDatabaseName'],
        '2' => $GLOBALS['strCreateUserDatabaseWildcard']);
    PMA_generate_html_radio('createdb', $choices, '0', true);
    unset($choices);

    echo '</fieldset>' . "\n";
    PMA_displayPrivTable('*', '*', FALSE);
    echo '    <fieldset id="fieldset_add_user_footer" class="tblFooters">' . "\n"
       . '        <input type="submit" name="adduser_submit" value="' . $GLOBALS['strGo'] . '" />' . "\n"
       . '    </fieldset>' . "\n"
       . '</form>' . "\n";
} else {
    // check the privileges for a particular database.
    echo '<table id="tablespecificuserrights" class="data">' . "\n"
       . '<caption class="tblHeaders">' . "\n"
       . PMA_getIcon('b_usrcheck.png')
       . '    ' . sprintf($GLOBALS['strUsersHavingAccessToDb'], '<a href="' . $GLOBALS['cfg']['DefaultTabDatabase'] . '?' . PMA_generate_common_url($checkprivs) . '">' .  htmlspecialchars($checkprivs) . '</a>') . "\n"
       . '</caption>' . "\n"
       . '<thead>' . "\n"
       . '    <tr><th>' . $GLOBALS['strUser'] . '</th>' . "\n"
       . '        <th>' . $GLOBALS['strHost'] . '</th>' . "\n"
       . '        <th>' . $GLOBALS['strType'] . '</th>' . "\n"
       . '        <th>' . $GLOBALS['strPrivileges'] . '</th>' . "\n"
       . '        <th>' . $GLOBALS['strGrantOption'] . '</th>' . "\n"
       . '        <th>' . $GLOBALS['strAction'] . '</th>' . "\n"
       . '    </tr>' . "\n"
       . '</thead>' . "\n"
       . '<tbody>' . "\n";
    $odd_row = TRUE;
    unset($row, $row1, $row2);

    // now, we build the table...
    $list_of_privileges =
        '`User`, '
        . '`Host`, '
        . '`Select_priv`, '
        . '`Insert_priv`, '
        . '`Update_priv`, '
        . '`Delete_priv`, '
        . '`Create_priv`, '
        . '`Drop_priv`, '
        . '`Grant_priv`, '
        . '`Index_priv`, '
        . '`Alter_priv`, '
        . '`References_priv`, '
        . '`Create_tmp_table_priv`, '
        . '`Lock_tables_priv`, '
        . '`Create_view_priv`, '
        . '`Show_view_priv`, '
        . '`Create_routine_priv`, '
        . '`Alter_routine_priv`, '
        . '`Execute_priv`';

    $list_of_compared_privileges =
        '`Select_priv` = \'N\''
        . ' AND `Insert_priv` = \'N\''
        . ' AND `Update_priv` = \'N\''
        . ' AND `Delete_priv` = \'N\''
        . ' AND `Create_priv` = \'N\''
        . ' AND `Drop_priv` = \'N\''
        . ' AND `Grant_priv` = \'N\''
        . ' AND `References_priv` = \'N\''
        . ' AND `Create_tmp_table_priv` = \'N\''
        . ' AND `Lock_tables_priv` = \'N\''
        . ' AND `Create_view_priv` = \'N\''
        . ' AND `Show_view_priv` = \'N\''
        . ' AND `Create_routine_priv` = \'N\''
        . ' AND `Alter_routine_priv` = \'N\''
        . ' AND `Execute_priv` = \'N\'';

    if (PMA_MYSQL_INT_VERSION >= 50106) {
        $list_of_privileges .=
            ', `Event_priv`, '
            . '`Trigger_priv`';
        $list_of_compared_privileges .=
            ' AND `Event_priv` = \'N\''
            . ' AND `Trigger_priv` = \'N\'';
    }

    $sql_query =
        '(SELECT ' . $list_of_privileges . ', `Db`'
        .' FROM `mysql`.`db`'
        .' WHERE \'' . PMA_sqlAddslashes($checkprivs) . "'"
        .' LIKE `Db`'
        .' AND NOT (' . $list_of_compared_privileges. ')) '
        .'UNION '
        .'(SELECT ' . $list_of_privileges . ', \'*\' AS `Db`'
        .' FROM `mysql`.`user` '
        .' WHERE NOT (' . $list_of_compared_privileges . ')) '
        .' ORDER BY `User` ASC,'
        .'  `Host` ASC,'
        .'  `Db` ASC;';
    $res = PMA_DBI_query($sql_query);
    $row = PMA_DBI_fetch_assoc($res);
    if ($row) {
        $found = TRUE;
    }

    if ($found) {
        while (TRUE) {
            // prepare the current user
            $current_privileges = array();
            $current_user = $row['User'];
            $current_host = $row['Host'];
            while ($row && $current_user == $row['User'] && $current_host == $row['Host']) {
                $current_privileges[] = $row;
                $row = PMA_DBI_fetch_assoc($res);
            }
            echo '    <tr class="' . ($odd_row ? 'odd' : 'even') . '">' . "\n"
               . '        <td';
            if (count($current_privileges) > 1) {
                echo ' rowspan="' . count($current_privileges) . '"';
            }
            echo '>' . (empty($current_user) ? '<span style="color: #FF0000">' . $GLOBALS['strAny'] . '</span>' : htmlspecialchars($current_user)) . "\n"
               . '        </td>' . "\n"
               . '        <td';
            if (count($current_privileges) > 1) {
                echo ' rowspan="' . count($current_privileges) . '"';
            }
            echo '>' . htmlspecialchars($current_host) . '</td>' . "\n";
            foreach ($current_privileges as $current) {
                echo '        <td>' . "\n"
                   . '            ';
                if (!isset($current['Db']) || $current['Db'] == '*') {
                    echo $GLOBALS['strGlobal'];
                } elseif ($current['Db'] == PMA_escape_mysql_wildcards($checkprivs)) {
                    echo $GLOBALS['strDbSpecific'];
                } else {
                    echo $GLOBALS['strWildcard'], ': <tt>' . htmlspecialchars($current['Db']) . '</tt>';
                }
                echo "\n"
                   . '        </td>' . "\n"
                   . '        <td>' . "\n"
                   . '            <tt>' . "\n"
                   . '                ' . join(',' . "\n" . '                ', PMA_extractPrivInfo($current, TRUE)) . "\n"
                   . '            </tt>' . "\n"
                   . '        </td>' . "\n"
                   . '        <td>' . "\n"
                   . '            ' . ($current['Grant_priv'] == 'Y' ? $GLOBALS['strYes'] : $GLOBALS['strNo']) . "\n"
                   . '        </td>' . "\n"
                   . '        <td>' . "\n";
                printf($link_edit, urlencode($current_user),
                    urlencode($current_host),
                    urlencode(! isset($current['Db']) || $current['Db'] == '*' ? '' : $current['Db']),
                    '');
                echo '</td>' . "\n"
                   . '    </tr>' . "\n";
            }
            if (empty($row) && empty($row1) && empty($row2)) {
                break;
            }
            $odd_row = ! $odd_row;
        }
    } else {
        echo '    <tr class="odd">' . "\n"
           . '        <td colspan="6">' . "\n"
           . '            ' . $GLOBALS['strNoUsersFound'] . "\n"
           . '        </td>' . "\n"
           . '    </tr>' . "\n";
    }
    echo '</tbody>' . "\n"
       . '</table>' . "\n";
} // end if (empty($_REQUEST['adduser']) && empty($checkprivs)) ... elseif ... else ...


/**
 * Displays the footer
 */
echo "\n\n";
require_once './libraries/footer.inc.php';

?>
