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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Functions for event management.
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/**
* Sets required globals
*
* @return void
*/
function PMA_EVN_setGlobals()
{
global $event_status, $event_type, $event_interval;
$event_status = array(
'query' => array('ENABLE',
'DISABLE',
'DISABLE ON SLAVE'),
'display' => array('ENABLED',
'DISABLED',
'SLAVESIDE_DISABLED')
);
$event_type = array('RECURRING',
'ONE TIME');
$event_interval = array('YEAR',
'QUARTER',
'MONTH',
'DAY',
'HOUR',
'MINUTE',
'WEEK',
'SECOND',
'YEAR_MONTH',
'DAY_HOUR',
'DAY_MINUTE',
'DAY_SECOND',
'HOUR_MINUTE',
'HOUR_SECOND',
'MINUTE_SECOND');
}
/**
* Main function for the events functionality
*
* @return void
*/
function PMA_EVN_main()
{
global $db;
PMA_EVN_setGlobals();
/**
* Process all requests
*/
PMA_EVN_handleEditor();
PMA_EVN_handleExport();
/**
* Display a list of available events
*/
$columns = "`EVENT_NAME`, `EVENT_TYPE`, `STATUS`";
$where = "EVENT_SCHEMA='" . PMA_Util::sqlAddSlashes($db) . "'";
$query = "SELECT $columns FROM `INFORMATION_SCHEMA`.`EVENTS` "
. "WHERE $where ORDER BY `EVENT_NAME` ASC;";
$items = $GLOBALS['dbi']->fetchResult($query);
echo PMA_RTE_getList('event', $items);
/**
* Display a link for adding a new event, if
* the user has the privileges and a link to
* toggle the state of the event scheduler.
*/
echo PMA_EVN_getFooterLinks();
} // end PMA_EVN_main()
/**
* Handles editor requests for adding or editing an item
*
* @return void
*/
function PMA_EVN_handleEditor()
{
global $_REQUEST, $_POST, $errors, $db;
if (! empty($_REQUEST['editor_process_add'])
|| ! empty($_REQUEST['editor_process_edit'])
) {
$sql_query = '';
$item_query = PMA_EVN_getQueryFromRequest();
if (! count($errors)) { // set by PMA_RTN_getQueryFromRequest()
// Execute the created query
if (! empty($_REQUEST['editor_process_edit'])) {
// Backup the old trigger, in case something goes wrong
$create_item = $GLOBALS['dbi']->getDefinition(
$db,
'EVENT',
$_REQUEST['item_original_name']
);
$drop_item = "DROP EVENT "
. PMA_Util::backquote($_REQUEST['item_original_name']) . ";\n";
$result = $GLOBALS['dbi']->tryQuery($drop_item);
if (! $result) {
$errors[] = sprintf(
__('The following query has failed: "%s"'),
htmlspecialchars($drop_item)
)
. '<br />'
. __('MySQL said: ') . $GLOBALS['dbi']->getError(null);
} else {
$result = $GLOBALS['dbi']->tryQuery($item_query);
if (! $result) {
$errors[] = sprintf(
__('The following query has failed: "%s"'),
htmlspecialchars($item_query)
)
. '<br />'
. __('MySQL said: ') . $GLOBALS['dbi']->getError(null);
// We dropped the old item, but were unable to create
// the new one. Try to restore the backup query
$result = $GLOBALS['dbi']->tryQuery($create_item);
if (! $result) {
// OMG, this is really bad! We dropped the query,
// failed to create a new one
// and now even the backup query does not execute!
// This should not happen, but we better handle
// this just in case.
$errors[] = __(
'Sorry, we failed to restore the dropped event.'
)
. '<br />'
. __('The backed up query was:')
. "\"" . htmlspecialchars($create_item) . "\""
. '<br />'
. __('MySQL said: ') . $GLOBALS['dbi']->getError(null);
}
} else {
$message = PMA_Message::success(
__('Event %1$s has been modified.')
);
$message->addParam(
PMA_Util::backquote($_REQUEST['item_name'])
);
$sql_query = $drop_item . $item_query;
}
}
} else {
// 'Add a new item' mode
$result = $GLOBALS['dbi']->tryQuery($item_query);
if (! $result) {
$errors[] = sprintf(
__('The following query has failed: "%s"'),
htmlspecialchars($item_query)
)
. '<br /><br />'
. __('MySQL said: ') . $GLOBALS['dbi']->getError(null);
} else {
$message = PMA_Message::success(
__('Event %1$s has been created.')
);
$message->addParam(
PMA_Util::backquote($_REQUEST['item_name'])
);
$sql_query = $item_query;
}
}
}
if (count($errors)) {
$message = PMA_Message::error(
'<b>'
. __(
'One or more errors have occurred while processing your request:'
)
. '</b>'
);
$message->addString('<ul>');
foreach ($errors as $string) {
$message->addString('<li>' . $string . '</li>');
}
$message->addString('</ul>');
}
$output = PMA_Util::getMessage($message, $sql_query);
if ($GLOBALS['is_ajax_request']) {
$response = PMA_Response::getInstance();
if ($message->isSuccess()) {
$columns = "`EVENT_NAME`, `EVENT_TYPE`, `STATUS`";
$where = "EVENT_SCHEMA='" . PMA_Util::sqlAddSlashes($db) . "' "
. "AND EVENT_NAME='"
. PMA_Util::sqlAddSlashes($_REQUEST['item_name']) . "'";
$query = "SELECT " . $columns
. " FROM `INFORMATION_SCHEMA`.`EVENTS` WHERE " . $where . ";";
$event = $GLOBALS['dbi']->fetchSingleRow($query);
$response->addJSON(
'name',
htmlspecialchars(strtoupper($_REQUEST['item_name']))
);
$response->addJSON('new_row', PMA_EVN_getRowForList($event));
$response->addJSON('insert', ! empty($event));
$response->addJSON('message', $output);
} else {
$response->isSuccess(false);
$response->addJSON('message', $message);
}
exit;
}
}
/**
* Display a form used to add/edit a trigger, if necessary
*/
if (count($errors)
|| (empty($_REQUEST['editor_process_add'])
&& empty($_REQUEST['editor_process_edit'])
&& (! empty($_REQUEST['add_item'])
|| ! empty($_REQUEST['edit_item'])
|| ! empty($_REQUEST['item_changetype'])))
) { // FIXME: this must be simpler than that
$operation = '';
if (! empty($_REQUEST['item_changetype'])) {
$operation = 'change';
}
// Get the data for the form (if any)
if (! empty($_REQUEST['add_item'])) {
$title = PMA_RTE_getWord('add');
$item = PMA_EVN_getDataFromRequest();
$mode = 'add';
} else if (! empty($_REQUEST['edit_item'])) {
$title = __("Edit event");
if (! empty($_REQUEST['item_name'])
&& empty($_REQUEST['editor_process_edit'])
&& empty($_REQUEST['item_changetype'])
) {
$item = PMA_EVN_getDataFromName($_REQUEST['item_name']);
if ($item !== false) {
$item['item_original_name'] = $item['item_name'];
}
} else {
$item = PMA_EVN_getDataFromRequest();
}
$mode = 'edit';
}
if ($item !== false) {
// Show form
$editor = PMA_EVN_getEditorForm($mode, $operation, $item);
if ($GLOBALS['is_ajax_request']) {
$response = PMA_Response::getInstance();
$response->addJSON('message', $editor);
$response->addJSON('title', $title);
} else {
echo "\n\n<h2>$title</h2>\n\n$editor";
unset($_POST);
}
exit;
} else {
$message = __('Error in processing request:') . ' ';
$message .= sprintf(
PMA_RTE_getWord('not_found'),
htmlspecialchars(PMA_Util::backquote($_REQUEST['item_name'])),
htmlspecialchars(PMA_Util::backquote($db))
);
$message = PMA_message::error($message);
if ($GLOBALS['is_ajax_request']) {
$response = PMA_Response::getInstance();
$response->isSuccess(false);
$response->addJSON('message', $message);
exit;
} else {
$message->display();
}
}
}
} // end PMA_EVN_handleEditor()
/**
* This function will generate the values that are required to for the editor
*
* @return array Data necessary to create the editor.
*/
function PMA_EVN_getDataFromRequest()
{
$retval = array();
$indices = array('item_name',
'item_original_name',
'item_status',
'item_execute_at',
'item_interval_value',
'item_interval_field',
'item_starts',
'item_ends',
'item_definition',
'item_preserve',
'item_comment',
'item_definer');
foreach ($indices as $index) {
$retval[$index] = isset($_REQUEST[$index]) ? $_REQUEST[$index] : '';
}
$retval['item_type'] = 'ONE TIME';
$retval['item_type_toggle'] = 'RECURRING';
if (isset($_REQUEST['item_type']) && $_REQUEST['item_type'] == 'RECURRING') {
$retval['item_type'] = 'RECURRING';
$retval['item_type_toggle'] = 'ONE TIME';
}
return $retval;
} // end PMA_EVN_getDataFromRequest()
/**
* This function will generate the values that are required to complete
* the "Edit event" form given the name of a event.
*
* @param string $name The name of the event.
*
* @return array Data necessary to create the editor.
*/
function PMA_EVN_getDataFromName($name)
{
global $db;
$retval = array();
$columns = "`EVENT_NAME`, `STATUS`, `EVENT_TYPE`, `EXECUTE_AT`, "
. "`INTERVAL_VALUE`, `INTERVAL_FIELD`, `STARTS`, `ENDS`, "
. "`EVENT_DEFINITION`, `ON_COMPLETION`, `DEFINER`, `EVENT_COMMENT`";
$where = "EVENT_SCHEMA='" . PMA_Util::sqlAddSlashes($db) . "' "
. "AND EVENT_NAME='" . PMA_Util::sqlAddSlashes($name) . "'";
$query = "SELECT $columns FROM `INFORMATION_SCHEMA`.`EVENTS` WHERE $where;";
$item = $GLOBALS['dbi']->fetchSingleRow($query);
if (! $item) {
return false;
}
$retval['item_name'] = $item['EVENT_NAME'];
$retval['item_status'] = $item['STATUS'];
$retval['item_type'] = $item['EVENT_TYPE'];
if ($retval['item_type'] == 'RECURRING') {
$retval['item_type_toggle'] = 'ONE TIME';
} else {
$retval['item_type_toggle'] = 'RECURRING';
}
$retval['item_execute_at'] = $item['EXECUTE_AT'];
$retval['item_interval_value'] = $item['INTERVAL_VALUE'];
$retval['item_interval_field'] = $item['INTERVAL_FIELD'];
$retval['item_starts'] = $item['STARTS'];
$retval['item_ends'] = $item['ENDS'];
$retval['item_preserve'] = '';
if ($item['ON_COMPLETION'] == 'PRESERVE') {
$retval['item_preserve'] = " checked='checked'";
}
$retval['item_definition'] = $item['EVENT_DEFINITION'];
$retval['item_definer'] = $item['DEFINER'];
$retval['item_comment'] = $item['EVENT_COMMENT'];
return $retval;
} // end PMA_EVN_getDataFromName()
/**
* Displays a form used to add/edit an event
*
* @param string $mode If the editor will be used edit an event
* or add a new one: 'edit' or 'add'.
* @param string $operation If the editor was previously invoked with
* JS turned off, this will hold the name of
* the current operation
* @param array $item Data for the event returned by
* PMA_EVN_getDataFromRequest() or
* PMA_EVN_getDataFromName()
*
* @return string HTML code for the editor.
*/
function PMA_EVN_getEditorForm($mode, $operation, $item)
{
global $db, $table, $event_status, $event_type, $event_interval;
// Escape special characters
$need_escape = array(
'item_original_name',
'item_name',
'item_type',
'item_execute_at',
'item_interval_value',
'item_starts',
'item_ends',
'item_definition',
'item_definer',
'item_comment'
);
foreach ($need_escape as $index) {
$item[$index] = htmlentities($item[$index], ENT_QUOTES);
}
$original_data = '';
if ($mode == 'edit') {
$original_data = "<input name='item_original_name' "
. "type='hidden' value='{$item['item_original_name']}'/>\n";
}
// Handle some logic first
if ($operation == 'change') {
if ($item['item_type'] == 'RECURRING') {
$item['item_type'] = 'ONE TIME';
$item['item_type_toggle'] = 'RECURRING';
} else {
$item['item_type'] = 'RECURRING';
$item['item_type_toggle'] = 'ONE TIME';
}
}
if ($item['item_type'] == 'ONE TIME') {
$isrecurring_class = ' hide';
$isonetime_class = '';
} else {
$isrecurring_class = '';
$isonetime_class = ' hide';
}
// Create the output
$retval = "";
$retval .= "<!-- START " . strtoupper($mode) . " EVENT FORM -->\n\n";
$retval .= "<form class='rte_form' action='db_events.php' method='post'>\n";
$retval .= "<input name='{$mode}_item' type='hidden' value='1' />\n";
$retval .= $original_data;
$retval .= PMA_URL_getHiddenInputs($db, $table) . "\n";
$retval .= "<fieldset>\n";
$retval .= "<legend>" . __('Details') . "</legend>\n";
$retval .= "<table class='rte_table' style='width: 100%'>\n";
$retval .= "<tr>\n";
$retval .= " <td style='width: 20%;'>" . __('Event name') . "</td>\n";
$retval .= " <td><input type='text' name='item_name' \n";
$retval .= " value='{$item['item_name']}'\n";
$retval .= " maxlength='64' /></td>\n";
$retval .= "</tr>\n";
$retval .= "<tr>\n";
$retval .= " <td>" . __('Status') . "</td>\n";
$retval .= " <td>\n";
$retval .= " <select name='item_status'>\n";
foreach ($event_status['display'] as $key => $value) {
$selected = "";
if (! empty($item['item_status']) && $item['item_status'] == $value) {
$selected = " selected='selected'";
}
$retval .= "<option$selected>$value</option>";
}
$retval .= " </select>\n";
$retval .= " </td>\n";
$retval .= "</tr>\n";
$retval .= "<tr>\n";
$retval .= " <td>" . __('Event type') . "</td>\n";
$retval .= " <td>\n";
if ($GLOBALS['is_ajax_request']) {
$retval .= " <select name='item_type'>";
foreach ($event_type as $key => $value) {
$selected = "";
if (! empty($item['item_type']) && $item['item_type'] == $value) {
$selected = " selected='selected'";
}
$retval .= "<option$selected>$value</option>";
}
$retval .= " </select>\n";
} else {
$retval .= " <input name='item_type' type='hidden' \n";
$retval .= " value='{$item['item_type']}' />\n";
$retval .= " <div style='width: 49%; float: left; text-align: center;"
. " font-weight: bold;'>\n";
$retval .= " {$item['item_type']}\n";
$retval .= " </div>\n";
$retval .= " <input style='width: 49%;' type='submit'\n";
$retval .= " name='item_changetype'\n";
$retval .= " value='";
$retval .= sprintf(__('Change to %s'), $item['item_type_toggle']);
$retval .= "' />\n";
}
$retval .= " </td>\n";
$retval .= "</tr>\n";
$retval .= "<tr class='onetime_event_row $isonetime_class'>\n";
$retval .= " <td>" . __('Execute at') . "</td>\n";
$retval .= " <td class='nowrap'>\n";
$retval .= " <input type='text' name='item_execute_at'\n";
$retval .= " value='{$item['item_execute_at']}'\n";
$retval .= " class='datetimefield' />\n";
$retval .= " </td>\n";
$retval .= "</tr>\n";
$retval .= "<tr class='recurring_event_row $isrecurring_class'>\n";
$retval .= " <td>" . __('Execute every') . "</td>\n";
$retval .= " <td>\n";
$retval .= " <input style='width: 49%;' type='text'\n";
$retval .= " name='item_interval_value'\n";
$retval .= " value='{$item['item_interval_value']}' />\n";
$retval .= " <select style='width: 49%;' name='item_interval_field'>";
foreach ($event_interval as $key => $value) {
$selected = "";
if (! empty($item['item_interval_field'])
&& $item['item_interval_field'] == $value
) {
$selected = " selected='selected'";
}
$retval .= "<option$selected>$value</option>";
}
$retval .= " </select>\n";
$retval .= " </td>\n";
$retval .= "</tr>\n";
$retval .= "<tr class='recurring_event_row$isrecurring_class'>\n";
$retval .= " <td>" . _pgettext('Start of recurring event', 'Start');
$retval .= " </td>\n";
$retval .= " <td class='nowrap'>\n";
$retval .= " <input type='text'\n name='item_starts'\n";
$retval .= " value='{$item['item_starts']}'\n";
$retval .= " class='datetimefield' />\n";
$retval .= " </td>\n";
$retval .= "</tr>\n";
$retval .= "<tr class='recurring_event_row$isrecurring_class'>\n";
$retval .= " <td>" . _pgettext('End of recurring event', 'End') . "</td>\n";
$retval .= " <td class='nowrap'>\n";
$retval .= " <input type='text' name='item_ends'\n";
$retval .= " value='{$item['item_ends']}'\n";
$retval .= " class='datetimefield' />\n";
$retval .= " </td>\n";
$retval .= "</tr>\n";
$retval .= "<tr>\n";
$retval .= " <td>" . __('Definition') . "</td>\n";
$retval .= " <td><textarea name='item_definition' rows='15' cols='40'>";
$retval .= $item['item_definition'];
$retval .= "</textarea></td>\n";
$retval .= "</tr>\n";
$retval .= "<tr>\n";
$retval .= " <td>" . __('On completion preserve') . "</td>\n";
$retval .= " <td><input type='checkbox'\n";
$retval .= " name='item_preserve'{$item['item_preserve']} /></td>\n";
$retval .= "</tr>\n";
$retval .= "<tr>\n";
$retval .= " <td>" . __('Definer') . "</td>\n";
$retval .= " <td><input type='text' name='item_definer'\n";
$retval .= " value='{$item['item_definer']}' /></td>\n";
$retval .= "</tr>\n";
$retval .= "<tr>\n";
$retval .= " <td>" . __('Comment') . "</td>\n";
$retval .= " <td><input type='text' name='item_comment' maxlength='64'\n";
$retval .= " value='{$item['item_comment']}' /></td>\n";
$retval .= "</tr>\n";
$retval .= "</table>\n";
$retval .= "</fieldset>\n";
if ($GLOBALS['is_ajax_request']) {
$retval .= "<input type='hidden' name='editor_process_{$mode}'\n";
$retval .= " value='true' />\n";
$retval .= "<input type='hidden' name='ajax_request' value='true' />\n";
} else {
$retval .= "<fieldset class='tblFooters'>\n";
$retval .= " <input type='submit' name='editor_process_{$mode}'\n";
$retval .= " value='" . __('Go') . "' />\n";
$retval .= "</fieldset>\n";
}
$retval .= "</form>\n\n";
$retval .= "<!-- END " . strtoupper($mode) . " EVENT FORM -->\n\n";
return $retval;
} // end PMA_EVN_getEditorForm()
/**
* Composes the query necessary to create an event from an HTTP request.
*
* @return string The CREATE EVENT query.
*/
function PMA_EVN_getQueryFromRequest()
{
global $_REQUEST, $errors, $event_status, $event_type, $event_interval;
$query = 'CREATE ';
if (! empty($_REQUEST['item_definer'])) {
if (strpos($_REQUEST['item_definer'], '@') !== false) {
$arr = explode('@', $_REQUEST['item_definer']);
$query .= 'DEFINER=' . PMA_Util::backquote($arr[0]);
$query .= '@' . PMA_Util::backquote($arr[1]) . ' ';
} else {
$errors[] = __('The definer must be in the "username@hostname" format!');
}
}
$query .= 'EVENT ';
if (! empty($_REQUEST['item_name'])) {
$query .= PMA_Util::backquote($_REQUEST['item_name']) . ' ';
} else {
$errors[] = __('You must provide an event name!');
}
$query .= 'ON SCHEDULE ';
if (! empty($_REQUEST['item_type'])
&& in_array($_REQUEST['item_type'], $event_type)
) {
if ($_REQUEST['item_type'] == 'RECURRING') {
if (! empty($_REQUEST['item_interval_value'])
&& !empty($_REQUEST['item_interval_field'])
&& in_array($_REQUEST['item_interval_field'], $event_interval)
) {
$query .= 'EVERY ' . intval($_REQUEST['item_interval_value']) . ' ';
$query .= $_REQUEST['item_interval_field'] . ' ';
} else {
$errors[]
= __('You must provide a valid interval value for the event.');
}
if (! empty($_REQUEST['item_starts'])) {
$query .= "STARTS '"
. PMA_Util::sqlAddSlashes($_REQUEST['item_starts']) . "' ";
}
if (! empty($_REQUEST['item_ends'])) {
$query .= "ENDS '"
. PMA_Util::sqlAddSlashes($_REQUEST['item_ends']) . "' ";
}
} else {
if (! empty($_REQUEST['item_execute_at'])) {
$query .= "AT '"
. PMA_Util::sqlAddSlashes($_REQUEST['item_execute_at']) . "' ";
} else {
$errors[]
= __('You must provide a valid execution time for the event.');
}
}
} else {
$errors[] = __('You must provide a valid type for the event.');
}
$query .= 'ON COMPLETION ';
if (empty($_REQUEST['item_preserve'])) {
$query .= 'NOT ';
}
$query .= 'PRESERVE ';
if (! empty($_REQUEST['item_status'])) {
foreach ($event_status['display'] as $key => $value) {
if ($value == $_REQUEST['item_status']) {
$query .= $event_status['query'][$key] . ' ';
break;
}
}
}
if (! empty($_REQUEST['item_comment'])) {
$query .= "COMMENT '" . PMA_Util::sqlAddslashes(
$_REQUEST['item_comment']
) . "' ";
}
$query .= 'DO ';
if (! empty($_REQUEST['item_definition'])) {
$query .= $_REQUEST['item_definition'];
} else {
$errors[] = __('You must provide an event definition.');
}
return $query;
} // end PMA_EVN_getQueryFromRequest()
?>
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