<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2026 The Cacti Group                                 |
 |                                                                         |
 | 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; either version 2          |
 | of the License, or (at your option) any later version.                  |
 |                                                                         |
 | 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.                            |
 +-------------------------------------------------------------------------+
 | Cacti: The Complete RRDTool-based Graphing Solution                     |
 +-------------------------------------------------------------------------+
 | This code is designed, written, and maintained by the Cacti Group. See  |
 | about.php and/or the AUTHORS file for specific developer information.   |
 +-------------------------------------------------------------------------+
 | http://www.cacti.net/                                                   |
 +-------------------------------------------------------------------------+
*/

define('COPYRIGHT_YEARS', 'Copyright (C) 2004-' . date('Y') . ' The Cacti Group');
define('COPYRIGHT_YEARS_SHORT', '(c) 2004-' . date('Y') . ' - The Cacti Group');

define('RRDP_VERSION', '1.2.17');
define('RRDP_VERSION_FULL', 'RRDtool Proxy Server v' . RRDP_VERSION . ', ' . COPYRIGHT_YEARS . "\r\n");
define('RRDP_PHP_VERSION_REQUIRED', 80200);

define('RRD_OK', 'OK u:0.00');
define('RRD_ERROR', 'ERROR:');

define('RRDP_MAX_KEY_SIZE', 16384);
define('RRDP_MAX_REQUEST_SIZE', 1048576);
define('RRDP_MAX_DECOMPRESSED_REQUEST_SIZE', 8388608);

define('SEVERITY_LEVEL_NONE', 0);
define('SEVERITY_LEVEL_EMERGENCY', 1);
define('SEVERITY_LEVEL_ALERT', 2);
define('SEVERITY_LEVEL_CRITICAL', 3);
define('SEVERITY_LEVEL_ERROR', 4);
define('SEVERITY_LEVEL_WARNING', 5);
define('SEVERITY_LEVEL_NOTIFICATION', 6);
define('SEVERITY_LEVEL_INFORMATIONAL', 7);
define('SEVERITY_LEVEL_DEBUG', 8);

define('LOGGING_LOCATION_BUFFERED', 1);
define('LOGGING_LOCATION_SNMP', 2);

define('NOT_CONNECTED', 0);
define('INITIALISING', 1);
define('SYNCING', 2);
define('FULL_SYNCING', 3);
define('CONNECTED', 4);
define('BROKEN', 5);
define('NOT_REACHABLE', 6);

define('ANSI_ESCAPE', "\033[");
define('ANSI_RESET',          ANSI_ESCAPE . '0m');
define('ANSI_BOLD',           ANSI_ESCAPE . '1m');
define('ANSI_FAINT',          ANSI_ESCAPE . '2m');
define('ANSI_ITALIC',         ANSI_ESCAPE . '3m');
define('ANSI_UNDERLINE',      ANSI_ESCAPE . '4m');
define('ANSI_BLINK',          ANSI_ESCAPE . '5m');
define('ANSI_BLINK_FAST',     ANSI_ESCAPE . '6m');
define('ANSI_CONCEAL',        ANSI_ESCAPE . '7m');
define('ANSI_STRIKEOUT',      ANSI_ESCAPE . '8m');
define('ANSI_FONT_DEFAULT',   ANSI_ESCAPE . '9m');
define('ANSI_FONT_ALT1',      ANSI_ESCAPE . '10m');
define('ANSI_FONT_ALT2',      ANSI_ESCAPE . '11m');
define('ANSI_FONT_ALT3',      ANSI_ESCAPE . '12m');
define('ANSI_FONT_ALT4',      ANSI_ESCAPE . '13m');
define('ANSI_FONT_ALT5',      ANSI_ESCAPE . '14m');
define('ANSI_FONT_ALT6',      ANSI_ESCAPE . '15m');
define('ANSI_FONT_ALT7',      ANSI_ESCAPE . '16m');
define('ANSI_FONT_ALT8',      ANSI_ESCAPE . '17m');
define('ANSI_FONT_ALT9',      ANSI_ESCAPE . '18m');
define('ANSI_FONT_ALT10',     ANSI_ESCAPE . '19m');
define('ANSI_FONT_FRAKTUR',   ANSI_ESCAPE . '20m');
define('ANSI_UNDERLINE_DBL',  ANSI_ESCAPE . '21m');
define('ANSI_NORMAL',         ANSI_ESCAPE . '22m');
define('ANSI_NO_ITL_FRAK',    ANSI_ESCAPE . '23m');
define('ANSI_UNDERLINE_OFF',  ANSI_ESCAPE . '24m');
define('ANSI_BLINK_OFF',      ANSI_ESCAPE . '25m');
define('ANSI_INVERSE_OFF',    ANSI_ESCAPE . '27m');
define('ANSI_REVEAL',         ANSI_ESCAPE . '28m');
define('ANSI_STRIKEOUT_OFF',  ANSI_ESCAPE . '29m');
define('ANSI_BLACK_FG',       ANSI_ESCAPE . '30m');
define('ANSI_BLACK_BG',       ANSI_ESCAPE . '40m');
define('ANSI_RED_FG',         ANSI_ESCAPE . '31m');
define('ANSI_RED_BG',         ANSI_ESCAPE . '41m');
define('ANSI_GREEN_FG',       ANSI_ESCAPE . '32m');
define('ANSI_GREEN_BG',       ANSI_ESCAPE . '42m');
define('ANSI_YELLOW_FG',      ANSI_ESCAPE . '33m');
define('ANSI_YELLOW_BG',      ANSI_ESCAPE . '43m');
define('ANSI_BLUE_FG',        ANSI_ESCAPE . '34m');
define('ANSI_BLUE_BG',        ANSI_ESCAPE . '44m');
define('ANSI_MAGENTA_FG',     ANSI_ESCAPE . '35m');
define('ANSI_MAGENTA_BG',     ANSI_ESCAPE . '45m');
define('ANSI_CYAN_FG',        ANSI_ESCAPE . '36m');
define('ANSI_CYAN_BG',        ANSI_ESCAPE . '46m');
define('ANSI_WHITE_FG',       ANSI_ESCAPE . '37m');
define('ANSI_WHITE_BG',       ANSI_ESCAPE . '47m');
define('ANSI_ERASE_TO_END',   ANSI_ESCAPE . '0J');
define('ANSI_ERASE_TO_BEGIN', ANSI_ESCAPE . '1J');
define('ANSI_ERASE_SCREEN',   ANSI_ESCAPE . '2J');
define('ANSI_ERASE_BUFFER',   ANSI_ESCAPE . '3J');
define('ANSI_POS_TOP_LEFT',   ANSI_ESCAPE . ';H');

$severity_levels = [
	0 => 'none',
	1 => 'emergency',
	2 => 'alert',
	3 => 'critical',
	4 => 'error',
	5 => 'warning',
	6 => 'notification',
	7 => 'informational',
	8 => 'debug'
];

$logging_categories = [
	'none'	=> 'No logging',
	'all'	 => 'All categories',
	'acl'	 => 'Access control',
	'sys'	 => 'Internal system processes',
	'slv'	 => 'Replication Slave processing',
	'mstr'	=> 'Replication Master processing',
	'ipc'	 => 'Client based inter process communication'
];

$process_status = [
	'RUNNING',
	'CLOSEDOWN_BY_SIGNAL',
	'CLOSEDOWN_BY_TIMEOUT',
	'CLOSEDOWN_BY_VIOLATION',
	'CLOSEDOWN_BY_CLIENT_CMD',
	'CLOSEDOWN_BY_CLIENT_DROP',
	'CLOSEDOWN_BY_AUTHENTICATION_FAILURE',
];

$colors = [
	'prompt'         => ANSI_GREEN_FG,    // green
	'debug'          => ANSI_CYAN_FG,     // cyan
	'normal'         => ANSI_GREEN_FG,    // green
	'informational'  => ANSI_BLUE_FG,     // blue
	'notification'   => ANSI_WHITE_FG,    // white
	'warning'        => ANSI_YELLOW_FG,   // yellow
	'error'          => ANSI_RED_FG,      // red
	'critical'       => ANSI_MAGENTA_FG,  // magenta
	'alert'          => ANSI_MAGENTA_BG,  // magenta background
	'emergency'      => ANSI_RED_BG,      // red background
];

$rrdtool_env_vars = [
	'RRD_DEFAULT_FONT',
	'RRDCACHED_STRIPPATH',
];

$rrdtool_custom_cmds = [
	'setenv',
	'getenv',
	'fc-list',
	'setcnn',
	'file_exists',
	'filemtime',
	'is_dir',
	'mkdir',
	'rmdir',
	'unlink',
	'rrd-list',
	'archive',
	'removespikes',
	'version',
];

$rrdp_client_cnn_params = [
	'timeout',
];

$rrdtool_cmds = [
	'create',
	'update',
	'updatev',
	'graph',
	'graphv',
	'dump',
	'restore',
	'last',
	'lastupdate',
	'first',
	'info',
	'fetch',
	'tune',
	'resize',
	'xport',
	'flushcached',
];

$rrdtool_msr_cmds = [
	'create',
	'update',
	'updatev',
	'restore',
	'tune',
	'resize',
	'mkdir',
	'rmdir',
	'unlink',
	'archive',
];

$rrdp_replicator_cmds = [
	'REQUEST_SCANDIR',
	'REQUEST_DUMP',
	'REQUEST_LASTUPDATE',
	'REQUEST_DIFF',
	'RESPONSE_SCANDIR',
	'RESPONSE_DUMP',
	'RESPONSE_LASTUPDATE',
	'RESPONSE_DIFF',
];

$rrdp_process_types = [
	'S' => 'replication slave',
	'M' => 'replication master',
	'C' => 'client'
];

$rrdp_aliases = ['?' => 'list', 'help' => 'list', 'exit' => 'quit'];

$rrdp_help_messages = [
	'?' => [
		0 => [
			'enable'   => 'Turn on privileged commands',
			'reset'    => 'Reset terminal screen',
			'show'     => [
				'info' => 'Show running system information',
				'?'    => [
					'status' => 'Return system status',
					'threads'=> 'Display currently open connections',
					'version'=> 'System software status',
				]
			],
			'quit'=> 'Close terminal session',
		],
		1 => [
			'clear'=> [
				'info'=> 'Clear functions for internal buffers',
				'?'   => [
					'logging'=> [
						'info'=> 'Clear logging buffer',
						'?'   => [
							'buffered'=> 'Clear buffered log Cache',
							'snmp'    => 'Clear SNMP log Cache'
						],
					],
					'counters' => 'Clear system counters',
				],
			],
			'disable'  => 'Turn off privileged commands',
			'reset'    => 'Reset terminal screen',
			'set'      => [
				'info'=> 'Configure proxy settings',
				'?'   => [
					'rsa'=> [
						'info'=> 'Administrate encryption parameters',
						'?'   => [
							'keys'=> 'Generate new RSA key pair'
						],
					],
					'client'=> [
						'info'=> 'Administrate RRDtool Proxy Server clients',
						'?'   => [
							'add'   => 'Add trusted client connection',
							'remove'=> 'Delete trusted client connection entry',
						],
					],
					'cluster'=> [
						'info'=> 'Administrate RRDtool Proxy Server Cluster Peers',
						'?'   => [
							'add'   => 'Add a trusted peer',
							'remove'=> 'Remove a trusted peer connection',
							'update'=> 'Update IP address or fingerprint of a registered peer',
						],
					],
					'logging'=> [
						'info'=> 'Administrate logging locations and levels',
						'?'   => [
							'buffered'=> [
								'info' => 'Set GLOBAL buffered logging severity level (default:5)', '?' => array_slice($severity_levels,0,8)
							],
							'snmp'=> [
								'info' => 'Set GLOBAL SNMP logging severity level (default:5)', '?' => array_slice($severity_levels,0,8)
							],
							'terminal'=> [
								'info' => 'Set LOCAL terminal logging severity level (default:0) and categories (default: none)',
								'?'    => [
									'level' => [
										'info' => 'Numerical representation of the severity level [0-8]',
										'?'    => $severity_levels
									],
									'category' => [
										'info'=> 'Set logging category (default: all)',
										'?'   => $logging_categories
									],
								],
							],
							'console'=> [
								'info' => 'Set LOCAL terminal logging severity level (default:0) and categories',
								'?'    => [
									'level' => [
										'info' => 'Numerical representation of the severity level [0-8]',
										'?'    => $severity_levels
									],
									'category' => [
										'info'=> 'Select one or more (comma separated) logging categories (default: none)',
										'?'   => $logging_categories
									],
								],
							],
						],
					],
				],
			],
			'show'=> [
				'info'=> 'Show running system information',
				'?'   => [
					'clients' => 'List all trusted client connections',
					'counters'=> 'Return all system counters',
					'cluster' => 'List all trusted cluster peers',
					'logging' => [
						'info'=> 'Display state of logging',
						'?'   => [
							'status'  => 'Show logging overview',
							'buffered'=> 'List buffered log entries',
							'snmp'    => 'Display SNMP logs'
						]
					],
					'msr'=> [
						'info'=> 'Display replication state',
						'?'   => [
							'buffer' => 'Display current replication buffer',
							'health' => 'Health status',
							'status' => 'Show current state of the MSR process',
						],
					],
					'processes' => 'Display running child processes',
					'rsa'       => [
						'info'=> 'Show Encryption setup',
						'?'   => [
							'publickey' => 'Display current public key and fingerprint',
						],
					],
					'threads'   => 'Display currently open connections',
					'variables' => 'Show Current Operating configuration',
					'version'   => 'System software status',
				]
			],
			'shutdown'  => 'Close all connections and shut down proxy',
			'quit'      => 'Close terminal session',
		],
	],
];

$rrdp_status = [
	'aborted_clients'               => 0,
	'bytes_received'                => 0,
	'bytes_sent'                    => 0,
	'connections'                   => 0,
	'max_admin_connections'         => 0,
	'max_client_connections'        => 0,
	'memory_usage'                  => 'live',
	'memory_peak_usage'             => 'live',
	'queries_rrdtool_total'         => 0,
	'queries_rrdtool_valid'         => 0,
	'queries_rrdtool_invalid'       => 0,
	'queries_system'                => 0,
	'threads_connected'             => 'live',
	'uptime'                        => 'live',
	'connections_open'              => 'live',
	'connections_closed'            => 0,
	'connections_timeout'           => 0,
	'connections_broken'            => 0,
	'connections_aborted'           => 0,
	'connections_refused'           => 0,
	'msr_bytes_received'            => 0,
	'msr_bytes_sent'                => 0,
	'msr_connection_broken'         => 0,
	'rrd_pipe_broken'               => 0,
	'srv_bytes_received'            => 0,
	'srv_bytes_sent'                => 0,
	'srv_connection_broken'         => 0,
	'proc_closedown_by_signal'      => 0,
	'proc_closedown_by_timeout'     => 0,
	'proc_closedown_by_violation'   => 0,
	'proc_closedown_by_client_cmd'  => 0,
	'proc_closedown_by_client_drop' => 0,
	'proc_closedown_by_decryption'  => 0,
	'proc_closedown_by_client_auth' => 0,
	'rra_disk_size'                 => 0,
	'rra_disk_used'                 => 0,
	'rra_disk_avail'                => 0,
	'msr_disk_size'                 => 0,
	'msr_disk_used'                 => 0,
	'msr_disk_avail'                => 0,
];

$rrdp_validate_filters = [
	FILTER_VALIDATE_BOOLEAN,
	FILTER_VALIDATE_EMAIL,
	FILTER_VALIDATE_FLOAT,
	FILTER_VALIDATE_INT,
	FILTER_VALIDATE_IP,
	FILTER_VALIDATE_MAC,
	FILTER_VALIDATE_REGEXP,
	FILTER_VALIDATE_URL
];