sbbs/main.js

log(LOG_DEBUG,'- INIT: ANSITEX');

// Load many SBBS definitions
require('sbbsdefs.js','SS_USERON');
// Load text.dat definitions
require('text.js','TOTAL_TEXT');
// Key definitions
require('key_defs.js','KEY_ESC');

ansi = load({},'ansiterm_lib.js');

load('frame.js');
load('graphic.js');

// Ansitex specific includes
load('ansitex/load/funcs.js');
load('ansitex/load/msgbases.js');

require('ansitex/load/defs.js','ACTION_EXIT');
require('ansitex/load/frame-ansi.js','FRAME_ANSI');
require('ansitex/load/frame-viewdata.js','FRAME_VIEWDATA');

// @todo Returning from chat should refresh the frame
// @todo Suppress displays of telegrams
bbs.node_settings &= ~(NM_LOGON_P); // Dont always ask for a password.

/**
 * This is our main event loop - we where interact with the user.
 * This loop takes care of first connect (unauthenticated users), or after authentication (main shell).
 */
while(bbs.online) {
	/**
	 * State of the current action
	 * - FALSE means we are not doing anything
	 * - MODE_* is the mode (as defined in defs.js)
	 * @type number|boolean
	 */
	var mode = false;						// Initial mode

	/**
	 * The next page to render
	 * @type {{frame: number,index: string}}
	 */
	var next_page = user.name ? HOME_FRAME_AUTH : HOME_FRAME_CONNECT;		// Start Frame

	/**
	 * Next action to take
	 * - FALSE means no action
	 * - ACTION_* is the action (as defined in defs.js)
	 * @type {number}
	 */
	var action = ACTION_GOTO;				// Initial action

	/**
	 * Variable holding our current key timeout value
	 * @type {number}
	 */
	var inkey_timeout = INKEY_TIMEOUT;

	/**
	 * Current Frame Object that is being displayed to the user
	 * - FrameViewdata - for viewdata frames
	 * - FrameAnsi - for ANSItex frames
	 * @type {FrameAnsi|FrameViewdata}
	 */
	var fo = null;

	/**
	 * Current input field being edited when a frame has input fields
	 * - NULL means we are not inputting on a field
	 * @type {number|null}
	 */
	var fn = null;

	/**
	 * History of frames that the user has seen this session
	 * @type {array}
	 */
	var history = [];

	/**
	 * Current Input Field.
	 * @type {object}
	 */
	var cf = null;
	var cc = null;							// Current Control Method

	/**
	 * User has hit the inactivity timeout without any input
	 * @type {boolean}
	 */
	var timeout = false;

	/**
	 * Time the user hit the inactivity timeout
	 * @type {number}
	 */
	var timer = time();

	/**
	 * Which command control methods are in play and process input
	 * @type {array}
	 */
	var control = [];

	/**
	 * The command being entered on the bottom line
	 * @type {string}
	 */
	var cmd = '';

	/**
	 * We are receiving an extended key sequence (like a function key)
	 * @type {string}
	 */
	var extendedkey = '';

	/**
	 * Our session is a viewdata session or an ansitex session
	 * @type {boolean}
	 */
	const viewdata = (client.socket.local_port === 516);

	while (action !== ACTION_TERMINATE && action !== ACTION_EXIT && bbs.online) {
		try {
			bbs.nodesync();						// @todo Stop the display of telegrams

			/* The current input character */
			var read = '';
			/* ESC key sequence received */
			var esc = false;

			// If we have no action, read from the terminal
			if (action === false) {
				// If a special key sequence is coming...
				while ((esc || ! read) && (action !== ACTION_TERMINATE)) {
					log(LOG_DEBUG,'- READ START');
					// Wait for a key from the user
					read = console.inkey(K_NONE,inkey_timeout);

					// We are entering a special keyboard char.
					if (read === KEY_ESC) {
						log(LOG_DEBUG,'- READ SPECIAL KEY COMING');
						esc = true;
						// We reduce our timeout, and assume the key is a function key. If the user pressed ESC we'll process that later
						inkey_timeout = 200;

					// If we got the ESC, but no [ then re-put the ESC in the read, we loose the current key
					// @todo We loose the current pressed key
					} else if (esc && ! extendedkey && read !== '[') {
						log(LOG_DEBUG,'- READ SPECIAL KEY ABANDONED: ['+read+'] ('+read.charCodeAt(0)+')');
						esc = false;
						inkey_timeout = INKEY_TIMEOUT;
						read = KEY_ESC;

					// Recognise when the ESC sequence has ended (with a ~ or ;)
					} else if (esc && extendedkey && (read === '~' || read === ';' || ! read)) {
						switch (extendedkey) {
							case '[15': read = false; break; // F5
							case '[17': read = false; break; // F6
							case '[18': read = false; break; // F7
							case '[19': read = false; break; // F8
							case '[20': read = false; break; // F9
							case '[21': read = ascii(26); break; // F10
							case '[23': read = false; break; // F11
							case '[24': read = false; break; // F12
							default:
								log(LOG_DEBUG,'- READ UNKNOWN KEY: ['+extendedkey+']');
								read = '';
						}

						esc = false;
						extendedkey = '';
						inkey_timeout = INKEY_TIMEOUT;

					// Record the character as an extended key
					} else if (esc) {
						log(LOG_DEBUG,'- READ SPECIAL KEY ['+read+'] ('+read.charCodeAt(0)+')');
						extendedkey += read;
						read = false;
					}

					// Calculate idle timeouts
					// If the user has exemption H we dont worry about timeout
					if (! read && ! (user.security.exemptions&UFLAG_H) ) {
						// Terminate the user if they have been inactive too long.
						if (time() > timer+((user.number ? INACTIVE_LOGIN : INACTIVE_NOLOGIN)+INKEY_TIMEOUT)/1000) {
							fo.sendBaseline('INACTIVE',false);
							action = ACTION_TERMINATE;
							mode = false;
							log(LOG_INFO,'User INACTIVE - terminating...');

						// Idle warning - due to inactivity.
						} else if (time() > timer+(user.number ? INACTIVE_LOGIN : INACTIVE_NOLOGIN)/1000) {
							timeout = true;
							fo.sendBaseline('INACTIVITY',false);

							if (cf) {
								fo.gotoxy(cf.c+cf.fvalue.length,cf.r);
								fo.attr(cf.attribute);
							}
						}

					} else {
						// If the user become active during inactivity, clear the baseline message
						if (timeout) {
							fo.clearBaseline(false);

							if (cf) {
								fo.gotoxy(cf.c+cf.fvalue.length,cf.r);
								fo.attr(cf.attribute);
							}
						}

						timer = time();
						timeout = false;
					}

					if (esc) {
						log(LOG_DEBUG,'- READ SPECIAL KEY LOOP');
					}
				}
			}
			log(LOG_DEBUG,'READ: ['+read+'] ('+read.charCodeAt(0)+')');

			system.node_list[bbs.node_num-1].action=0xff;	// to ensure our node status is updated correctly

			// After reading from the terminal, see if we need to pass that input to a control module,
			// except if input is on the bottom line
			log(LOG_DEBUG,'CONTROL: mode ['+mode+'] ('+control.length+')');
			if ((mode !== MODE_BL) && control.length) {
				log(LOG_DEBUG,'CONTROL DEBUG: ['+control.length+'] ('+JSON.stringify(control)+')');
				cc = control[control.length-1];
				log(LOG_DEBUG,'CONTROL IS: ['+typeof cc+']');
				log(LOG_DEBUG,'CONTROL START: ['+read+'] ('+cc.getName+')');
				// We pass the read to the control and see if it consumes it.
				read = cc.handle(read);
				log(LOG_DEBUG,'CONTROL RETURN: ['+read+'] ('+cc.isComplete+')');

				if (cc.isComplete) {
					control.pop();
					cc = null;
					log(LOG_DEBUG,'CONTROL COMPLETE: ['+read+'] ('+control.length+')');
				}

				log(LOG_DEBUG,'CONTROL END: ['+read+']');
			}

			log(LOG_DEBUG,'MODE START: ['+read.charCodeAt(0)+']');
			switch (mode) {
				// Normal navigation
				case false:
					log(LOG_DEBUG,'- MODE false: ['+read+']');

					switch (read) {
						case '*': action = ACTION_STAR;
							break;

						// Frame Routing
						case '0':
						case '1':
						case '2':
						case '3':
						case '4':
						case '5':
						case '6':
						case '7':
						case '8':
						case '9':
							log(LOG_DEBUG,'- MODE false: Key ['+read+'] Route ['+fo.key[read]+']');
							if (fo.key[read] !== null) {
								// If are requesting a home page
								if (fo.key[read] === 0) {
									next_page = user.number ? HOME_FRAME : LOGIN_FRAME;

								} else {
									next_page = {frame: fo.key[read],index: 'a'};
								}

								action = ACTION_GOTO;
								log(LOG_DEBUG,'- false: Key ['+read+'] ['+pageStr(next_page)+']');

							} else {
								fo.sendBaseline('ERR_ROUTE',false);
							}

							break;

						case '_':
							// Viewdata terminal's # is an _ character
							if (! viewdata) break;
							/* fallthrough */
						case '#':
							log(LOG_DEBUG,'- false: Key ['+read+'] ['+pageStr(fo)+']');
							if (fo.index !== 'z') {
								next_page = {frame: fo.frame,index: String.fromCharCode(fo.index.charCodeAt(0)+1)};
								action = ACTION_GOTO;

							} else {
								fo.sendBaseline('ERR_ROUTE',false);
							}

							break;
					}

					break;

				// Command input on bottom line
				case MODE_BL:
					log(LOG_DEBUG,'- MODE_BL: ['+read+']');
					if (read.match(/[0-9]/)) {
						cmd += read;
						console.write(read);
					}

					// If the user pressed backspace
					// @todo We should get the user's configuration of backspace
					if ((read === CTRL_H || read === KEY_DEL) && cmd.length) {
						console.backspace();
						cmd = cmd.substring(0,cmd.length-1);
					}

					if (cmd === '00') {
						action = ACTION_RELOAD;
						cmd = '';
						fo.cursorOff();
						break;
					}

					if (cmd === '01' && ! user.number) {
						action = ACTION_GOTO;
						next_page = SQRL_FRAME;
						break;
					}

					// Invalid system pages.
					if (cmd.match(/^0[2367]/)) {
						fo.cursorOff();
						fo.sendBaseline('ERR_ROUTE',false);
						mode = action = false;
						cmd = '';
					}

					// Edit specific frame
					if (cmd.match(/^04/) && read.match(/[a-z]/)) {
						// If we are not a user
						if (! user.number) {
							fo.cursorOff();
							fo.sendBaseline('ERR_ROUTE',false);
							action = false;

						} else {
							next_page = {frame: parseInt(cmd.substr(2,cmd.length-1)),index: read};
							fo.cursorOff();
							action = ACTION_EDIT;

							log(LOG_DEBUG,'- MODE_BL: EDIT ['+JSON.stringify(next_page)+']');
						}

						mode = false;
						cmd = '';

						break;
					}

					// Bookmark frame
					if (cmd === '05') {
						if (! user.number) {
							fo.cursorOff();
							fo.sendBaseline('ERR_ROUTE',false);
							mode = action = false;
							cmd = '';

						} else {
							// @todo
							fo.cursorOff();
							fo.sendBaseline('ERR_NOT_IMPLEMENTED',false);
							mode = action = false;
							cmd = '';
						}

						break;
					}

					// Report Problem
					if (cmd === '08') {
						if (! user.number) {
							fo.cursorOff();
							fo.sendBaseline('ERR_ROUTE',false);
							mode = action = false;
							cmd = '';

						} else {
							// @todo
							fo.cursorOff();
							fo.sendBaseline('ERR_NOT_IMPLEMENTED',false);
							mode = action = false;
							cmd = '';
						}

						break;
					}

					// Reload frame
					if (cmd === '09') {
						fo.cursorOff();
						action = ACTION_GOTO;
						cmd = '';
						next_page = {frame: fo.frame,index: fo.index};

						break;
					}

					// Another star aborts the command
					if (read === '*') {
						fo.clearBaseline(false);
						fo.cursorOff();
						mode = action = false;
						cmd = '';

						if (cf) {
							// If there is a control for this field,
							if (cc)
								cc.prefield();

							mode = MODE_FIELD;
							fo.gotoxy(cf.c,cf.r);
							fo.attr(cf.attribute);
							console.write(cf.fchar.repeat(cf.fvalue.length));
							fo.cursorOn(cf.c,cf.r);
							cf.fvalue = '';
						}
					}

					if ((viewdata && read === '_') || (! viewdata && read === '#') || read === "\r") {
						// Nothing typed between * and #
						// *# means go back
						if (cmd === '') {
							fo.clearBaseline(false);
							action = ACTION_BACKUP;

						} else if (cmd === '0') {
							next_page = user.number ? HOME_FRAME : LOGIN_FRAME;
							action = ACTION_GOTO;

						// Edit frame
						} else if (cmd === '04') {
							// If we are not a user
							if (! user.number) {
								fo.sendBaseline('ERR_ROUTE',false);
								action = false;

							} else {
								action = ACTION_EDIT;
							}

						} else {
							next_page = {frame: parseInt(cmd),index: 'a'};
							action = ACTION_GOTO;
						}

						// Clear the command we are finished processing...
						fo.cursorOff();
						cmd = '';
						mode = false;
					}

					break;

				// Key presses during field input.
				case MODE_FIELD:
					action = false;

					switch (fo.type) {
						// Login frame.
						case FRAME_TYPE_LOGIN:
							switch (read) {
								case '_':
									if (! viewdata) break;
									/* fallthrough */
								case '#':
								case "\r":
									log(LOG_DEBUG,'- MODE_FIELD:FRAME_TYPE_LOGIN: ['+read+'] A');
									// If we are the main login screen, see if it is a new user
									if (cf.ftype === 't' && cf.fvalue.toUpperCase() === 'NEW') {
										action = ACTION_GOTO;
										next_page = REGISTER_FRAME;

										break;
									}

									break;
							}
							/* fallthrough */

						// Response frame.
						case FRAME_TYPE_RESPONSE:
							// If we came from FRAME_TYPE_LOGIN and the user typed NEW to register
							if (action === ACTION_GOTO)
								break;

							switch (read) {
								// End of field entry.
								case '_':
									if (! viewdata) break;
									/* fallthrough */
								case '#':
								case "\r":
									log(LOG_DEBUG,'- MODE_FIELD:FRAME_TYPE_RESPONSE: # ['+read+']');
									// Next Field
									fn++;

									cf = fo.frame_fields[fn];
									log(LOG_DEBUG,'fn:'+fn+', cf'+JSON.stringify(cf));

									if (cf) {
										// If there is a control for this field,
										if (cc)
											cc.prefield();

										mode = MODE_FIELD;
										fo.gotoxy(cf.c,cf.r);
										fo.attr(cf.attribute);

									// Finished all editable fields.
									} else {
										action = ACTION_SUBMITRF;
									}

									break;

								case '*':
									log(LOG_DEBUG,'- MODE_FIELD:FRAME_TYPE_RESPONSE: ['+read+']');

									action = ACTION_STAR;

									break;

								// Delete Key pressed
								case CTRL_H:
								case KEY_DEL:
									log(LOG_DEBUG,'- MODE_FIELD:FRAME_TYPE_RESPONSE: DEL ['+read+']'+' cf:'+(cf ? cf.fvalue.length : '{}')+' ct:'+cf.ftype);

									if (cf.fvalue.length > 0) {
										cf.fvalue = cf.fvalue.substring(0,cf.fvalue.length-1);
										fo.fieldbs(cf.fchar);
									}

									break;

								case KEY_ESC:
									log(LOG_DEBUG,'- MODE_FIELD:FRAME_TYPE_RESPONSE: ESC ['+read+']');
									break;

								case KEY_DOWN:
									log(LOG_DEBUG,'- MODE_FIELD:FRAME_TYPE_RESPONSE: DOWN ['+read+']');
									// Next Field
									fn++;

									cf = fo.frame_fields[fn];
									log(LOG_DEBUG,'fn:'+fn+', cf'+JSON.stringify(cf));

									if (! cf) {
										fn = 0;
										cf = fo.frame_fields[fn];
									}

									// If there is a control for this field,
									if (cc)
										cc.prefield();

									mode = MODE_FIELD;
									fo.gotoxy(cf.c+cf.fvalue.length,cf.r);
									fo.attr(cf.attribute);

									break;

								case KEY_UP:
									log(LOG_DEBUG,'- MODE_FIELD:FRAME_TYPE_RESPONSE: UP ['+read+']');
									// Next Field
									fn--;

									if (fn < 0) {
										fn = fo.frame_fields.length-1;
									}

									cf = fo.frame_fields[fn];
									log(LOG_DEBUG,'fn:'+fn+', cf'+JSON.stringify(cf));

									// If there is a control for this field,
									if (cc)
										cc.prefield();

									mode = MODE_FIELD;
									fo.gotoxy(cf.c+cf.fvalue.length,cf.r);
									fo.attr(cf.attribute);

									break;

								// Record Data Entry
								default:
									log(LOG_DEBUG,'- MODE_FIELD:FRAME_TYPE_RESPONSE: ['+read+'] E:'+read.charCodeAt(0)+' cf:'+(cf ? cf.flength : '{}'));

									if (read.charCodeAt(0) > 31 && cf.fvalue.length < cf.flength) {
										cf.fvalue += read;
										console.write((cf.ftype === 't') ? read : 'x');
									}
								}

							break;

						// Other Frame Types - Shouldnt get here.
						default:
							log(LOG_DEBUG,'- SHOULDNT GET HERE: ['+read+']');
							action = ACTION_TERMINATE;
					}

					break;

				// Form submission: 1 to send, 2 not to send.
				case MODE_SUBMITRF:
					switch (read) {
						case '1':
							log(LOG_DEBUG,'- MODE_SUBMITRF: Key ['+read+'] ['+pageStr(fo)+']');
							log(LOG_DEBUG,'  - Frame fields: '+JSON.stringify(fo.frame_fields));
							log(LOG_DEBUG,'  - Key 1 is:'+JSON.stringify(fo.key[1]));

							// If we are in a control method, complete it
							if (control.count) {
								log(LOG_DEBUG,'Last control method is:'+JSON.stringify(control[control.length-1]));

								control[control.length-1].process();

							} else if (fo.key[1] === '*' || fo.key[1].match(/[0-9]/)) {
								fo.sendBaseline('NOACTION',false);
								mode = MODE_RFSENT;

							} else {
								log(LOG_DEBUG,'  - Key 1 is a METHOD check it exists: '+JSON.stringify(fo.key[1]));

								switch(fo.key[1]) {
									// User is logging in to system or CUG
									case 'login':
										log(LOG_DEBUG,'  - User: '+fo.frame_fields[0].fvalue+'/'+fo.frame_fields[1].fvalue);

										// If login is successful, we'll exit here
										if (bbs.login(fo.frame_fields[0].fvalue,'',fo.frame_fields[1].fvalue)) {
											log(LOG_DEBUG,'  - User: '+JSON.stringify(user.number));
											bbs.logon();
											log(LOG_DEBUG,'  - SEND TO EXIT:');

											action = ACTION_EXIT;
											break;
										}

										log(LOG_DEBUG,'  ! Login failed for User:'+JSON.stringify(fo.frame_fields[0].fvalue));
										action = ACTION_GOTO;
										next_page = LOGIN_FAILED_FRAME;
										break;

									default:
										// Its assumed that you get here after completing a form and you have pressed 1 to submit that form.
										log(LOG_DEBUG,'  ! EVAL method:'+JSON.stringify(fo.key));
										if (cc.process()) {
											control.pop();
											log(LOG_DEBUG,'  = Process Completed.');
										}
								}
							/*

							} elseif ($ao = FrameClass\Action::factory($this->fo->route(1),$this,$user,$action,$mode)) {
								$ao->handle();
								$mode = $ao->mode;
								$action = $ao->action;

								if ($ao->page)
									$next_page = $ao->page;

							} else {
								fo.sendBaseline('ERR_METHOD_NOT_EXIST',false);

								mode = MODE_RFSENT;
							}
							 */
							}

							break;

						case '2':
							log(LOG_DEBUG,'- MODE_SUBMITRF: Key ['+read+'] ['+pageStr(fo)+']');
							// @todo Check if HASH is a valid next destination

							if (fo.type === 'l') {
								action = ACTION_RELOAD;
								mode = false;

							} else {
								fo.sendBaseline('MSG_NOTSENT',false);
								mode = MODE_RFNOTSENT;
							}

							/*
							// If a Control method was rejected, we can clear it
							if ($control AND $method->count()) {
								$save = $method->pop();

								if ($method->count()) {
									$control = $method->last()->state['control'];

								} else {
									$mode = $save->state['mode'];
									$action = $save->state['action'];
									$control = FALSE;
								}
							}
							 */

							break;

						case '*':
							action = ACTION_STAR;

							break;
					}

					// Destroy the object.
					cc = null;

					break;

				// Response form after Sent processing
				case MODE_RFSENT:
					fo.cursorOff();

					switch (read) {
						case '*':
							action = ACTION_STAR;
							break;
					}

					/*
					if ($read === HASH) {
						if ($x = $this->fo->route(2) AND $x !== '*' AND is_numeric($x)) {
							$next_page = ['frame'=>$x];

						} elseif (FrameModel::where('frame',$this->fo->frame())->where('index',$this->fo->index_next())->exists()) {
							$next_page = ['frame'=>$this->fo->frame(),'index'=>$this->fo->index_next()];

						} elseif ($x = $this->fo->route(0) AND $x !== '*' AND is_numeric($x)) {
							$next_page = ['frame'=>$x];

							// No further routes defined, go home.
						} else {
							$next_page = ['frame'=>0];
						}

						$action = ACTION_GOTO;

					}

					*/
					break;

				// Response form after NOT sending
				case MODE_RFNOTSENT:

				// Response form ERROR
				case MODE_RFERROR:
					fo.cursorOff();

					if ((viewdata && read === '_') || (! viewdata && read === '#')) {
						/*
						if ($x = $this->fo->route(2) AND $x !== '*' AND is_numeric($x)) {
							$next_page = ['frame'=>$x];

						} elseif (FrameModel::where('frame',$this->fo->frame())->where('index',$this->fo->index_next())->exists()) {
							$next_page = ['frame'=>$this->fo->frame(),'index'=>$this->fo->index_next()];

						} elseif ($x = $this->fo->route(0) AND $x !== '*' AND is_numeric($x)) {
							$next_page = ['frame'=>$x];

							// No further routes defined, go home.
						} else {
							$next_page = ['frame'=>0];
						}
						 */

						action = ACTION_GOTO;

					} else if (read === '*') {
						action = ACTION_STAR;

						break;
					}

					break;

				// @todo MODE_CONTROL

				default:
					log(LOG_DEBUG,'- SHOULDNT GET HERE: ['+read+']');
					action = ACTION_TERMINATE;
			}
			log(LOG_DEBUG,'MODE END: ['+read+']');

			log(LOG_DEBUG,'ACTION START: ['+read+']');
			switch (action) {
				// Start command entry
				case ACTION_STAR:
					log(LOG_DEBUG,'- ACTION_STAR: ['+(next_page ? pageStr(next_page) : '')+']');

					// @todo If something on the baseline preserve it

					fo.cursorOn(0,24);
					fo.sendBaseline('BASESTAR',true);
					action = false;
					mode = MODE_BL;

					bbs.replace_text(NodeActionRetrieving,'\1h%s \1n\1gJumping to page');
					bbs.node_action=NODE_RFSD;

					break;

				// Submitting forms
				case ACTION_SUBMITRF:
					action = false;
					fo.cursorOff();
					log(LOG_DEBUG,'- ACTION_SUBMITRF: ['+fo.type+']');
					fo.sendBaseline((fo.type === 'l' ? 'MSG_LOGON' : 'MSG_SENDORNOT'),true);
					mode = MODE_SUBMITRF;

					break;

				// Edit a frame
				case ACTION_EDIT:
					log(LOG_DEBUG,'- ACTION_EDIT: ['+JSON.stringify(next_page)+']');

					if ((fo.type === FRAME_TYPE_MESSAGE) || (! pageEditor(next_page ? next_page.frame : fo.frame))) {
						fo.cursorOff();
						fo.sendBaseline('ACCESS_DENIED',false);
						action = false;
						break;
					}

					require('ansitex/load/control-frameedit.js','CONTROL_FRAMEEDIT');

					// If we are editing a specific frame, attempt to load it
					if (next_page) {
						var current = fo;
						fo = viewdata ? new FrameViewdata() : new FrameAnsi();
						fo.load(pageStr(next_page));

						// If the frame doesnt exist, check that the parent frame exists in case we are creating a new one
						if (fo.page === null) {
							log(LOG_DEBUG,'- ACTION_EDIT: check index: '+next_page.index+' ('+String.fromCharCode(next_page.index.charCodeAt(0)-1)+')');

							// We can always create an 'a' frame
							if (next_page.index !== 'a') {
								fo = viewdata ? new FrameViewdata() : new FrameAnsi();
								fo.load(pageStr({frame: next_page.frame, index: String.fromCharCode(next_page.index.charCodeAt(0)-1)}));

								log(LOG_DEBUG,'- ACTION_EDIT: check index: '+JSON.stringify(fo)+' ('+String.fromCharCode(next_page.index.charCodeAt(0)-1)+')');
								if (fo.page === null) {
									fo = current;
									// sendbaseline ERR_PAGE
									fo.sendBaseline('ERR_NO_PARENT',false);
									mode = action = false;
									break;
								}
							}

							// New frame
							fo = viewdata ? new FrameViewdata() : new FrameAnsi();
							fo.frame = next_page.frame;
							fo.index = next_page.index;
							fo.cost = 0;
							fo.owner = base64_decode(pageOwner(pageStr(next_page)).logo);
							fo.content = base64_encode('Start your new page...');
						}
					}

					control.push(new edit(fo));

					mode = false;
					action = false;
					break;

				// GO Backwards
				case ACTION_BACKUP:
					log(LOG_DEBUG,'- ACTION_BACKUP: history size - '+history.length+' with ['+history.join('|')+']');
					// Do we have anywhere to go, drop the current page from the history
					if (history.length > 1)
						history.pop();

					// @todo If in control...

					next_page = (history.length > 0) ? history[history.length-1] : null;

					log(LOG_DEBUG,'- ACTION_BACKUP: Backing up to ['+JSON.stringify(next_page)+'] current ['+fo.page+']');

					// If there is no next page, we'll ignore the request.
					if (! next_page || (pageStr(next_page) === fo.page)) {
						action = false;
						break;
					}

				// Goto specific page
				case ACTION_GOTO:
					// Clear any controls
					control = [];

					log(LOG_DEBUG,'- ACTION_GOTO: ['+(next_page ? pageStr(next_page) : '')+']');
					var current = null;

					// For logged in users, we'll see if this is a mail page.
					if (user.number) {
						// @todo consider how we do mail security.

						// Echoarea mail summary
						if (/^1[0-9]{6}1$/.test(next_page.frame)) {
							log(LOG_DEBUG,'- ACTION_GOTO - load echoarea summary: ['+next_page.frame+']');

							to = viewdata ? new FrameViewdata() : new FrameAnsi();
							// @todo look for a template in the area or group first
							to.load(MAIL_TEMPLATE_AREA_SUMMARY);

							var ma = new MsgAreas();
							var area = ma.getArea(next_page.frame);

							// If the template page doesnt exist
							if ((! to.content) || (! area)) {
								fo.sendBaseline('ERR_ROUTE',false);
								mode = action = false;
								break;
							}

							current = fo;

							fo = viewdata ? new FrameViewdata() : new FrameAnsi();
							fo.frame = next_page.frame;
							fo.index = next_page.index;
							fo.content = to.content;
							fo.isPublic = true;
							fo.isAccessible = to.isAccessible;
							fo.owner = to.owner;
							fo.type = to.type;
							// Parent
							fo.key[0] = (''+next_page.frame).substr(0,7);

							// First Unread
							fo.key[1] = atcode('msg_area_msgunread_page',null,null,area);

							// First to me
							fo.key[2] = atcode('msg_area_msgtome_page',null,null,area);

							// Oldest
							fo.key[3] = atcode('msg_area_msgoldest_page',null,null,area);
							// Newest
							fo.key[4] = atcode('msg_area_msgnewest_page',null,null,area);

							next_page = null;

						// 1zzzzEEnnnn - get a message
						} else if (/^1[0-9]{10}/.test(next_page.frame)) {
							log(LOG_DEBUG,'- ACTION_GOTO - load message: ['+next_page.frame+']');

							if (next_page.index === 'a') {
								require('ansitex/load/control-echomail.js','CONTROL_ECHOMAIL');
								control.push(new echomail(next_page.frame));
								action = false;
								next_page = null;
								log(LOG_DEBUG,'- ACTION_GOTO - control message: ['+JSON.stringify(control[control.length-1])+'] ('+control.length+')');

								if (! control[control.length-1].ready()) {
									log(LOG_DEBUG,'- ACTION_GOTO - control not ready aborting...');
									control.pop();
									mode = false;

									fo.sendBaseline('ERR_ROUTE',false);
									break;
								}

							// @todo - Show message stats
							} else if (next_page.index === 'b') {
								action = mode = false;
								next_page = null;

								fo.sendBaseline('ERR_NOT_IMPLEMENTED',false);
								break;

							} else {
								mode = action = false;
								next_page = null;

								fo.sendBaseline('ERR_ROUTE',false);
								break;
							}
						}
					}

					if (next_page !== null) {
						current = fo;
						fo = viewdata ? new FrameViewdata() : new FrameAnsi();
						fo.load(pageStr(next_page));

						if (fo.page === null) {
							fo = current;

							// In case the frame doesnt exist
							if (fo === null)
								fo = viewdata ? new FrameViewdata() : new FrameAnsi();

							// sendbaseline ERR_PAGE
							fo.sendBaseline('ERR_ROUTE',false);
							mode = action = false;
							break;
						}

						next_page = null;
					}

					// If the user has access to the frame
					if (fo.accessible) {
						if (fo.isMember && fo.type === FRAME_TYPE_LOGIN) {
							fo.sendBaseline('ALREADY_MEMBER',false);
							mode = action = false;
							break;
						}

					// Check if the frame exists, and the user is the Service Provider
					} else {
						fo.sendBaseline('ACCESS_DENIED',false);
						mode = action = false;
						// Reset the current frame to what it was.
						fo = current;
						break;
					}

					log(LOG_DEBUG,'- ACTION_GOTO: next_page ['+JSON.stringify(next_page)+'] last history ['+JSON.stringify(history[history.length-1])+']');

					// Record our history
					if ((! history.length || (pageStr(history[history.length-1]) !== fo.page)) && (fo.type !== FRAME_TYPE_LOGIN)) {
						// Ignore the login frames
						if (NO_HISTORY_FRAMES.indexOf(fo.page) === -1) {
							history.push({frame:fo.frame,index:fo.index});
							log(LOG_DEBUG,'- ACTION_GOTO: Added to history ['+fo.page+'] now ['+history.length+']');
						}
					}

				// Load frame
				case ACTION_RELOAD:
					log(LOG_DEBUG,'- ACTION_RELOAD: ['+(next_page ? pageStr(next_page) : '')+']');

					console.line_counter = 0;	// @todo fix to suppress a pause that is occurring before clear()
					fo.cursorOff();

					bbs.replace_text(NodeActionMain,'\1h%s \1nViewing \1h*'+fo.frame+'#\1n ['+fo.index+']');
					bbs.log_str(fo.page+'|');
					bbs.node_action=NODE_MAIN;

					switch(fo.type) {
						// Terminate frame
						case FRAME_TYPE_MAIL_TEMPLATE:
							log(LOG_DEBUG,'- MAIL_TEMPLATE: ['+fo.frame+']');
							fo.render(ma.getArea(fo.frame));
							mode = false;
							action = false;

							break;

						// Terminate frame
						case FRAME_TYPE_TERMINATE:
							fo.render();
							mode = false;
							action = ACTION_TERMINATE;

							break;

						// External Frame
						// @todo returning from the frame, go to the 0 key if it is set
						case FRAME_TYPE_EXTERNAL:
							var content = base64_decode(fo.content);
							log(LOG_DEBUG,'- ACTION_GOTO: EXTERNAL ['+JSON.stringify(content)+']');

							switch(content.replace(/\n/,'')) {
								case 'bbs.user_config()':
								case 'bbs.read_mail(MAIL_YOUR)':
								case 'bbs.scan_subs(SCAN_NEW)':
								case 'bbs.scan_posts()':
								case 'bbs.post_msg()':
									eval(content);

									// Check and see if our shell was changed
									if (user.command_shell !== 'ansitex') {
										exit();
									}

									action = ACTION_BACKUP;
									break;

								default:
									console.putmsg(JSON.stringify(content));
									fo.sendBaseline('ERR_ROUTE',false);
									action = false;
									break;
							}

							mode = false;
							break;

						case FRAME_TYPE_LOGIN:
							action = false;
							/* fallthrough */

						case FRAME_TYPE_RESPONSE:
							fn = 0;
							cf = null;
							fo.render();

							if (fo.frame_fields.length) {
								cf = fo.frame_fields[fn];
								log(LOG_DEBUG,'cf'+JSON.stringify(cf));

								if (cf) {
									mode = MODE_FIELD;
									fo.cursorOn(cf.c,cf.r);
									fo.attr(cf.attribute);

								// There were no editable fields.
								} else {
									mode = MODE_COMPLETE;
									fo.cursorOff();
								}

							} else {
								mode = false;
							}

							// If this is the register page
							if (fo.page === pageStr(REGISTER_FRAME)) {
								log(LOG_DEBUG,'Adding REGISTER to control stack');
								require('ansitex/load/control-'+fo.key[1]+'.js','CONTROL_REGISTER');
								control.push(eval('new '+fo.key[1]+'();'));

							} else if (fo.page === pageStr(SQRL_FRAME)) {
								log(LOG_DEBUG,'Adding SQRL to control stack');
								require('ansitex/load/control-'+fo.key[1]+'.js','CONTROL_SQRL');
								control.push(eval('new '+fo.key[1]+'();'));

							} else if (fo.key[1] && (fo.type === FRAME_TYPE_RESPONSE) && (typeof(fo.key[1]) !== 'number')) {
								log(LOG_DEBUG,'Adding METHOD to control stack: '+fo.key[1]);
								require('ansitex/load/control-'+fo.key[1]+'.js','CONTROL_'+fo.key[1].toUpperCase());
								control.push(eval('new '+fo.key[1]+'();'));
							}

							action = false;

							break;

						// Standard Frame
						case FRAME_TYPE_INFO:
						default:
							fo.render();
							mode = action = false;
							break;

						// Active frame
					}

					break;
			}
			log(LOG_DEBUG,'ACTION END: ['+read+']');

		} catch (e) {
			log(LOG_ERROR,JSON.stringify(e));
			fo.sendBaseline('SYS_ERROR',false);
			mode = action = false;
		}
	}

	log(LOG_DEBUG,'- FINISHED');
	if (action === ACTION_TERMINATE) {
		log(LOG_DEBUG,'! Hangup');
		fo.cursorOn();
		bbs.hangup();
	}

	exit();
}