<?php

// Pandora FMS - http://pandorafms.com
// ==================================================
// Copyright (c) 2005-2011 Artica Soluciones Tecnologicas
// Please see http://pandorafms.org for full contribution list

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

function dbmanager_query ($sql, &$error) {
	global $config;

	switch ($config["dbtype"]) {
		case "mysql":
			$retval = array();
		
			if ($sql == '')
				return false;
				
			$sql = html_entity_decode($sql, ENT_QUOTES);
		
			$result = mysql_query ($sql);
			if ($result === false) {
				$backtrace = debug_backtrace ();
				$error = mysql_error ();
				return false;
			}
			
			if ($result === true) {
				return mysql_affected_rows ();
			}
			
			while ($row = mysql_fetch_array ($result, MYSQL_ASSOC)) {
				array_push ($retval, $row);
			}
			mysql_free_result ($result);
			
			if (! empty ($retval))
				return $retval;
		
			//Return false, check with === or !==
			return "Empty";
			break;
		case "postgresql":
		case "oracle":
			$retval = array();
		
			if ($sql == '')
				return false;
				
			$sql = html_entity_decode($sql, ENT_QUOTES);
			
			$result = db_process_sql($sql, "affected_rows", '', false, $status);
		
			//$result = mysql_query ($sql);
			if ($result === false) {
				$backtrace = debug_backtrace();
				$error = db_get_last_error();
				
				return false;
			}
			
			if ($status == 2) {
				return $result;
			}
			else {
				return $result;
			}
			break;
	}
}


function dbmgr_extension_main () {
	ui_require_css_file ('dbmanager', 'extensions/dbmanager/');

	global $config;

	if (! check_acl ($config['id_user'], 0, "PM") && ! is_user_admin ($config['id_user'])) {
		db_pandora_audit("ACL Violation", "Trying to access Setup Management");
		require ("general/noaccess.php");
		return;
	}
	
	if (!check_refererer()) {
		require ("general/noaccess.php");
	
		return;
	}

	$sql = (string) get_parameter ('sql');

	ui_print_page_header (__('Database interface'), "", false, false, true);

	echo '<div class="notify">';
	echo "This is an advanced extension to interface with Pandora FMS database directly from WEB console using native SQL sentences. Please note that <b>you can damage</b> your Pandora FMS installation if you don't know </b>exactly</b> what are you are doing, this means that you can severily damage your setup using this extension. This extension is intended to be used <b>only by experienced users</b> with a depth knowledge of Pandora FMS internals.";
	echo '</div>';

	echo "<br />";
	echo "Some samples of usage: <blockquote><em>SHOW STATUS;<br />DESCRIBE tagente<br />SELECT * FROM tserver<br />UPDATE tagente SET id_grupo = 15 WHERE nombre LIKE '%194.179%'</em></blockquote>";

	echo "<br /><br />";
	echo "<form method='post' action=''>";
	html_print_textarea ('sql', 5, 40, html_entity_decode($sql, ENT_QUOTES));
	echo '<br />';
	echo '<div class="action-buttons" style="width: 96%">';
	html_print_submit_button (__('Execute SQL'), '', false, 'class="sub next"');
	echo '</div>';
	echo "</form>";

	// Processing SQL Code
	if ($sql == '')
		return;

	echo "<br />";
	echo "<hr />";
	echo "<br />";
	
	$error = '';
	$result = dbmanager_query ($sql, $error);
	
	if ($result === false) {
		echo '<strong>An error has occured when querying the database.</strong><br />';
		echo $error;
		
		db_pandora_audit("Extension DB inface", "Error in SQL", false, false, $sql);
		
		return;
	}
	
	if (! is_array ($result)) {
		echo "<strong>Output: <strong>".$result;
		
		db_pandora_audit("Extension DB inface", "SQL", false, false, $sql);
		
		return;
	}
	
	echo "<div style='overflow: auto;'>";
	$table->width = '90%';
	$table->class = 'dbmanager';
	$table->head = array_keys ($result[0]);
	
	$table->data = $result;
	
	html_print_table ($table);
	echo "</div>";
}

/* This adds a option in the operation menu */
extensions_add_godmode_menu_option (__('DB interface'), 'PM','gdbman',"dbmanager/icon.png");

/* This sets the function to be called when the extension is selected in the operation menu */
extensions_add_godmode_function ('dbmgr_extension_main');

?>
