def describe_ssh_availability(term, session): from x84.bbs.ini import CFG if session.kind == 'ssh': # what a good citizen! return if not (CFG.has_section('ssh') and not CFG.has_option('ssh', 'enabled') or CFG.getboolean('ssh', 'enabled')): # ssh not enabled return about_key = (u"You may even use an ssh key, which you can configure from " u"your user profile, " if not session.user.get('pubkey') else u'') big_msg = term.bold_blue("Big Brother is Watching You") description = ( u"\r\n\r\n" u" {term.red}You are using {session.kind}, but ssh is available " u"on port {ssh_port} of this server. If you want a secure connection " u"with shorter latency, we recommend instead to use ssh! {about_key}" u"Remember: {big_msg}!\r\n\r\n".format( term=term, session=session, ssh_port=ssh_port, about_key=about_key, big_msg=big_msg)) show_description(term, description, color=None) waitprompt(term)
def describe_ssh_availability(term, session): from x84.bbs.ini import CFG if session.kind == 'ssh': # what a good citizen! return if not (CFG.has_section('ssh') and not CFG.has_option('ssh', 'enabled') or CFG.getboolean('ssh', 'enabled')): # ssh not enabled return about_key = (u"You may even use an ssh key, which you can configure from " u"your user profile, " if not session.user.get('pubkey') else u'') big_msg = term.bold_blue("Big Brother is Watching You") description = ( u"\r\n\r\n" u" {term.red}You are using {session.kind}, but ssh is available " u"on port {ssh_port} of this server. If you want a secure connection " u"with shorter latency, we recommend instead to use ssh! {about_key}" u"Remember: {big_msg}!\r\n\r\n".format(term=term, session=session, ssh_port=ssh_port, about_key=about_key, big_msg=big_msg)) show_description(term, description, color=None) waitprompt(term)
def describe_ssh_availability(term, session): from x84.bbs.ini import CFG if session.kind == 'ssh': # what a good citizen! return if not (CFG.has_section('ssh') and not CFG.has_option('ssh', 'enabled') or CFG.getboolean('ssh', 'enabled')): # ssh not enabled return about_key = (u"You may even use an ssh key, which you can configure from " u"your user profile, " if not session.user.get('pubkey') else u'') big_msg = term.bold_blue("Big Brother is Watching You") description = ( " {term.red}You are using {session.kind}, but ssh is available " "on port {ssh_port} of this server. If you want a secure connection " "with shorter latency, we recommend instead to use ssh! {about_key}" "Remember: {big_msg}!" .format(term=term, session=session, ssh_port=ssh_port, about_key=about_key, big_msg=big_msg) ) echo(u'\r\n\r\n') for txt in term.wrap(description, width=min(80, term.width)): echo(term.move_x(max(0, (term.width // 2) - 40))) echo(term.red(txt.rstrip() + '\r\n')) echo(u'\r\n\r\n') echo(term.center(term.bold_black('Press any key to continue: ')).rstrip()) term.inkey()
def get_servers(CFG): """ Given a configuration file, instantiate and return a list of enabled servers. """ log = logging.getLogger('x84.engine') servers = [] if CFG.has_section('telnet'): # start telnet server instance from x84.telnet import TelnetServer servers.append(TelnetServer(config=CFG)) if CFG.has_section('ssh'): # start ssh server instance # # may raise an ImportError for systems where pyOpenSSL and etc. could # not be installed (due to any issues with missing python-dev, libffi, # cc, etc.). Allow it to raise naturally, the curious user should # either discover and resolve the root issue, or disable ssh if it # cannot be resolved. from x84.ssh import SshServer servers.append(SshServer(config=CFG)) if CFG.has_section('rlogin'): # start rlogin server instance from x84.rlogin import RLoginServer servers.append(RLoginServer(config=CFG)) return servers
def main(): """ x84 main entry point. The system begins and ends here. Command line arguments to engine.py: - ``--config=`` location of alternate configuration file - ``--logger=`` location of alternate logging.ini file """ import x84.bbs.ini # load existing .ini files or create default ones. x84.bbs.ini.init(*parse_args()) from x84.bbs import get_ini from x84.bbs.ini import CFG if sys.maxunicode == 65535: # apple is the only known bastardized variant that does this; # presumably for memory/speed savings (UCS-2 strings are faster # than UCS-4). Python 3 dynamically allocates string types by # their widest content, so such things aren't necessary ... import warnings warnings.warn('This python is built without wide unicode support. ' 'some internationalized languages will not be possible.') # retrieve list of managed servers servers = get_servers(CFG) # begin unmanaged servers if (CFG.has_section('web') and (not CFG.has_option('web', 'enabled') or CFG.getboolean('web', 'enabled'))): # start https server for one or more web modules. from x84 import webserve webserve.main() if get_ini(section='msg', key='network_tags'): # start background timer to poll for new messages # of message networks we may be a member of. from x84 import msgpoll msgpoll.main() try: # begin main event loop _loop(servers) except KeyboardInterrupt: # exit on ^C, killing any client sessions. from x84.terminal import kill_session for server in servers: for idx, thread in enumerate(server.threads[:]): if not thread.stopped: thread.stopped = True server.threads.remove(thread) for key, client in server.clients.items()[:]: kill_session(client, 'server shutdown') del server.clients[key] return 0
def main(): """ x84 main entry point. The system begins and ends here. Command line arguments to engine.py: - ``--config=`` location of alternate configuration file - ``--logger=`` location of alternate logging.ini file """ # load existing .ini files or create default ones. import x84.bbs.ini x84.bbs.ini.init(*cmdline.parse_args()) from x84.bbs import get_ini from x84.bbs.ini import CFG if sys.maxunicode == 65535: # apple is the only known bastardized variant that does this; # presumably for memory/speed savings (UCS-2 strings are faster # than UCS-4). Python 3 dynamically allocates string types by # their widest content, so such things aren't necessary, there. import warnings warnings.warn('This python is built without wide unicode support. ' 'some internationalized languages will not be possible.') # retrieve list of managed servers servers = get_servers(CFG) # begin unmanaged servers if (CFG.has_section('web') and (not CFG.has_option('web', 'enabled') or CFG.getboolean('web', 'enabled'))): # start https server for one or more web modules. from x84 import webserve webserve.main() if get_ini(section='msg', key='network_tags'): # start background timer to poll for new messages # of message networks we may be a member of. from x84 import msgpoll msgpoll.main() try: # begin main event loop _loop(servers) except KeyboardInterrupt: # exit on ^C, killing any client sessions. for server in servers: for thread in server.threads[:]: if not thread.stopped: thread.stopped = True server.threads.remove(thread) for key, client in server.clients.items()[:]: kill_session(client, 'server shutdown') del server.clients[key] return 0
def get_servers(CFG): """ Instantiate and return enabled servers by configuration ``CFG``. """ servers = [] if (CFG.has_section('telnet') and (not CFG.has_option('telnet', 'enabled') or CFG.getboolean('telnet', 'enabled'))): # start telnet server instance from x84.telnet import TelnetServer servers.append(TelnetServer(config=CFG)) if (CFG.has_section('ssh') and not CFG.has_option('ssh', 'enabled') or CFG.getboolean('ssh', 'enabled')): # start ssh server instance # # may raise an ImportError for systems where pyOpenSSL and etc. could # not be installed (due to any issues with missing python-dev, libffi, # cc, etc.). Allow it to raise naturally, the curious user should # either discover and resolve the root issue, or disable ssh if it # cannot be resolved. from x84.ssh import SshServer servers.append(SshServer(config=CFG)) if (CFG.has_section('rlogin') and (not CFG.has_option('rlogin', 'enabled') or CFG.getboolean('rlogin', 'enabled'))): # start rlogin server instance from x84.rlogin import RLoginServer servers.append(RLoginServer(config=CFG)) return servers
def get_ini(section=None, key=None, getter='get', split=False, splitsep=None): """ Get an ini configuration of ``section`` and ``key``. If the option does not exist, an empty list, string, or False is returned -- return type decided by the given arguments. The ``getter`` method is 'get' by default, returning a string. For booleans, use ``getter='get_boolean'``. To return a list, use ``split=True``. """ from x84.bbs.ini import CFG assert section is not None, section assert key is not None, key if CFG.has_option(section, key): getter = getattr(CFG, getter) value = getter(section, key) if split and hasattr(value, 'split'): return map(str.strip, value.split(splitsep)) return value if getter == 'getboolean': return False if split: return [] return u''
def __init__(self, client, iqueue, oqueue, lock): from x84.bbs.ini import CFG self.client = client self.iqueue = iqueue self.oqueue = oqueue self.lock = lock self.timeout = CFG.getint('system', 'timeout')
def start_polling(): """ launch method for polling process """ def polling_thread(poll_interval): import time last_poll = 0 while True: now = time.time() if now - last_poll >= poll_interval: poll() last_poll = now time.sleep(1) from threading import Thread from x84.bbs.ini import CFG import logging log = logging.getLogger('x84.engine') poll_interval = CFG.getint('msg', 'poll_interval') t = Thread(target=polling_thread, args=(poll_interval,)) t.daemon = True t.start() log.info('msgpoll will poll at {0}s intervals.' .format(poll_interval))
def connect_bot(botname): """ Make a zombie telnet connection to the board as the given bot. """ def read_forever(client): client.read_all() import telnetlib from x84.bbs.ini import CFG from x84.bbs.session import BOTLOCK, BOTQUEUE telnet_addr = CFG.get('telnet', 'addr') telnet_port = CFG.getint('telnet', 'port') with BOTLOCK: client = telnetlib.Telnet() client.set_option_negotiation_callback(callback_cmdopt) client.open(telnet_addr, telnet_port) BOTQUEUE.put(botname) t = threading.Thread(target=read_forever, args=(client,)) t.daemon = True t.start()
def dummy_pager(user): """ A dummy selector for profile attributes """ from x84.bbs import getsession, getterminal, echo, Ansi, getch session, term = getsession(), getterminal() plan = user.get('.plan', False) from x84.bbs.ini import CFG def_timeout = CFG.getint('system', 'timeout') menu = ['(c)%-20s - %s' % (u'hARACtER ENCOdiNG', term.bold(session.encoding),), '(t)%-20s - %s' % (u'ERMiNAl tYPE', term.bold(session.env.get('TERM', 'unknown')),), '(h)%-20s - %s' % (u'ERMiNAl hEiGht', term.bold(str(term.height)),), '(w)%-20s - %s' % (u'ERMiNAl WidtH', term.bold(str(term.width)),), '(l)%-20s - %s' % (u'OCAtiON', term.bold(user.location),), '(p)%-20s - %s' % (u'ASSWORd', term.bold_black(u'******'),), '(!)%-20s - %s' % (u'Set SA User Cookie', term.bold(user['sausercookie']),), '(@)%-20s - %s' % (u'Set SA Pass Cookie', term.bold_black(user['sapasscookie']),), '(e)%-20s - %s' % (u'-MAil AddRESS', term.bold(user.email),), # '(!)%-20s - %s' % (u'SA User Cookie', # term.bold(user['sausercookie']),), # '(@)%-70s - %s' % (u'SA Pass Cookie', # term.bold(user['sapasscookie']),), (term.bold('t') + '(i)%-19s - %s' % (u'MEOUt', term.bold( str(user.get('timeout', def_timeout))),)), '(s)%-20s - %s' % (u'YSOP ACCESS', term.bold(u'ENAblEd' if 'sysop' in user.groups else 'diSAblEd')), '(m)%-20s - %s' % (u'ESG', term.bold(u'[%s]' % ('y' if user.get( 'mesg', True) else 'n',),)), '(.)%-20s - %s' % (u'PlAN filE', '%d bytes' % ( len(plan),) if plan else '(NO PlAN.)'), '(x)%-20s - %s' % (u'PERt MOdE', term.bold(u'ENAblEd' if user.get('expert', False) else 'diSAblEd')), '(q)Uit', ] echo(term.normal + term.clear() ) lines = Ansi('\n'.join(menu)).wrap(term.width).splitlines() xpos = max(1, int(term.width / 2) - (40 / 2)) for row, line in enumerate(lines): if row and (0 == row % (term.height - 2)): echo(term.reverse(u'\r\n-- More --')) getch() echo(u'\r\n' + ' ' * xpos + line) echo(u'\r\n\r\n Enter option [ctle.xq]: ') return process_keystroke(getch(), user)
def translate_ttype(ttype): from x84.bbs.ini import CFG log = logging.getLogger(__name__) termcap_unknown = CFG.get('system', 'termcap-unknown') termcap_ansi = CFG.get('system', 'termcap-ansi') if termcap_unknown != 'no' and ttype == 'unknown': log.debug("terminal-type {0!r} => {1!r}".format( ttype, termcap_unknown)) return termcap_unknown elif termcap_ansi != 'no' and ttype.lower().startswith('ansi'): log.debug("terminal-type {0!r} => {1!r}".format(ttype, termcap_ansi)) return termcap_ansi log.info("terminal type is {0!r}".format(ttype)) return ttype
def queue_for_network(self): " Queue message for networks, hosting or sending. " from x84.bbs import get_ini log = logging.getLogger(__name__) # server networks this server is a member of, member_networks = get_ini(section='msg', key='network_tags', split=True, splitsep=',') # server networks offered by this server, my_networks = get_ini(section='msg', key='server_tags', split=True, splitsep=',') # check all tags of message; if they match a message network, # either record for hosting servers, or schedule for delivery. for tag in self.tags: section = 'msgnet_{tag}'.format(tag=tag) # message is for a network we host if tag in my_networks: section = 'msgnet_{tag}'.format(tag=tag) transdb_name = CFG.get(section, 'trans_db_name') transdb = DBProxy(transdb_name) with transdb: self.body = u''.join((self.body, format_origin_line())) self.save() transdb[self.idx] = self.idx log.info('[{tag}] Stored for network (msgid {self.idx}).' .format(tag=tag, self=self)) # message is for a another network, queue for delivery elif tag in member_networks: queuedb_name = CFG.get(section, 'queue_db_name') queuedb = DBProxy(queuedb_name) with queuedb: queuedb[self.idx] = tag log.info('[{tag}] Message (msgid {self.idx}) queued ' 'for delivery'.format(tag=tag, self=self))
def translate_ttype(ttype): from x84.bbs.ini import CFG log = logging.getLogger(__name__) termcap_unknown = CFG.get('system', 'termcap-unknown') termcap_ansi = CFG.get('system', 'termcap-ansi') if termcap_unknown != 'no' and ttype == 'unknown': log.debug("terminal-type {0!r} => {1!r}" .format(ttype, termcap_unknown)) return termcap_unknown elif termcap_ansi != 'no' and ttype.lower().startswith('ansi'): log.debug("terminal-type {0!r} => {1!r}" .format(ttype, termcap_ansi)) return termcap_ansi log.info("terminal type is {0!r}".format(ttype)) return ttype
def get_digestpw(): """ Returns singleton to password digest routine. """ global FN_PASSWORD_DIGEST if FN_PASSWORD_DIGEST is not None: return FN_PASSWORD_DIGEST from x84.bbs.ini import CFG FN_PASSWORD_DIGEST = { 'bcrypt': _digestpw_bcrypt, 'internal': _digestpw_internal, 'plaintext': _digestpw_plaintext, }.get(CFG.get('system', 'password_digest')) return FN_PASSWORD_DIGEST
def GET(self, num=10): """ Return last x callers """ num = int(num) callers = DBProxy('lastcalls', use_session=False).items() last = sorted(callers[-num:], reverse=True, key=lambda caller: caller[1][0]) # output JSON instead? if 'json' in web.input(_method='get'): return json.dumps(last) callers_html = '' board = CFG.get('system', 'bbsname', 'x/84') page_title = 'Last {num} Callers to {board}'.format( num=num, board=board) for caller in last: callers_html += ''.join(('<li><b>{who}</b> {affil} ', '<small>at {when}</small></li>')).format( who=caller[0], affil='(%s)' % caller[1][2] if caller[1][2] else '', when=datetime.fromtimestamp(caller[1][0])) web.header('Content-Type', 'text/html; charset=utf-8', unique=True) output = """ <!DOCTYPE html> <html lang="en-US"> <head> <meta charset="utf-8" /> <title>{page_title}</title> </head> <body> <h1>{page_title}</h1> <ul> {callers_html} </ul> </body> </html> """.format(page_title=page_title, callers_html=callers_html) return output
def GET(self, num=10): """ Return last x oneliners """ num = int(num) oneliners = DBProxy('oneliner', use_session=False).items() oneliners = [(int(k), v) for (k, v) in DBProxy('oneliner', use_session=False).items()] last = oneliners[-num:] # output JSON instead? if 'json' in web.input(_method='get'): return json.dumps(last) board = CFG.get('system', 'bbsname', 'x/84') page_title = 'Last {num} Oneliners on {board}'.format(num=num, board=board) oneliners_html = '' for line in last: val = line[1] oneliners_html += '<li><b>{alias}:</b> {oneliner}</li>'.format( alias=val['alias'], oneliner=val['oneliner']) web.header('Content-Type', 'text/html; charset=utf-8', unique=True) output = """ <!DOCTYPE html> <html lang="en-US"> <head> <meta charset="utf-8" /> <title>{page_title}</title> </head> <body> <h1>{page_title}</h1> <ul> {oneliners_html} </ul> </body> </html> """.format(page_title=page_title, oneliners_html=oneliners_html) return output
def GET(self, num=10): """ Return last x oneliners """ num = int(num) oneliners = DBProxy('oneliner', use_session=False).items() oneliners = [(int(k), v) for (k, v) in DBProxy('oneliner', use_session=False).items()] last = oneliners[-num:] # output JSON instead? if 'json' in web.input(_method='get'): return json.dumps(last) board = CFG.get('system', 'bbsname', 'x/84') page_title = 'Last {num} Oneliners on {board}'.format( num=num, board=board) oneliners_html = '' for line in last: val = line[1] oneliners_html += '<li><b>{alias}:</b> {oneliner}</li>'.format( alias=val['alias'], oneliner=val['oneliner']) web.header('Content-Type', 'text/html; charset=utf-8', unique=True) output = """ <!DOCTYPE html> <html lang="en-US"> <head> <meta charset="utf-8" /> <title>{page_title}</title> </head> <body> <h1>{page_title}</h1> <ul> {oneliners_html} </ul> </body> </html> """.format(page_title=page_title, oneliners_html=oneliners_html) return output
def start(web_modules): """ fire up a web server with the given modules as endpoints """ from threading import Thread import logging import sys import os from x84.bbs.ini import CFG logger = logging.getLogger() sys.path.insert(0, os.path.expanduser(CFG.get('system', 'scriptpath'))) urls = ('/favicon.ico', 'favicon') funcs = globals() funcs['favicon'] = Favicon for mod in web_modules: module = None # first check for it in the scripttpath's webmodules dir try: module = __import__('webmodules.%s' % mod, fromlist=('webmodules',)) except ImportError: pass # fallback to the engine's webmodules dir if module is None: module = __import__('x84.webmodules.%s' % mod, fromlist=('x84.webmodules',)) api = module.web_module() urls += api['urls'] for key in api['funcs']: funcs[key] = api['funcs'][key] t = Thread(target=server_thread, args=(urls, funcs,)) t.daemon = True t.start() logger.info(u'Web modules: %s' % u', '.join(web_modules))
def process_keystroke(inp, user): """ Process keystroke, ``inp``, for target ``user``. """ # pylint: disable=R0914,R0912,R0915,R0911,W0603 # Too many local variables # Too many branches # Too many statements # Too many return statements # Using the global statement # ^ lol, this is one of those things that should be # refactored into smaller subroutines =) from x84.bbs import getsession, getterminal, echo, getch, gosub from x84.bbs import LineEditor, Ansi from x84.default.nua import set_email, set_location from x84.bbs.ini import CFG def_timeout = CFG.getint('system', 'timeout') global EXIT session, term = getsession(), getterminal() is_self = bool(user.handle == session.user.handle) invalid = u'\r\niNVAlid.' assert is_self or 'sysop' in session.user.groups if is_self and inp in (u'^',): user['sausercookie'] = u'' user['sapasscookie'] = u'' if is_self and inp in (u'c', u'C'): gosub('charset') elif is_self and inp in (u'@',): echo(u'\r\neNTER SA \'pass\' cookie: ') sapasscookie = LineEditor(50, session.user['sapasscookie']).read() echo(u"\r\n\r\nset SA pass cookie to '%s'? [yn]" % (sapasscookie,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): session.user['sapasscookie'] = sapasscookie break elif inp2 in (u'n', u'N'): break elif is_self and inp in (u'!',): echo(u'\r\neNTER SA \'user\' cookie: ') sausercookie = LineEditor(30, session.user['sausercookie']).read() echo(u"\r\n\r\nset SA user cookie to '%s'? [yn]" % (sausercookie,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): session.user['sausercookie'] = sausercookie break elif inp2 in (u'n', u'N'): break elif is_self and inp in (u't', u'T'): echo(term.move(term.height - 1, 0)) echo(ABOUT_TERM + u'\r\n') echo(u'\r\ntERMiNAl tYPE: ') term = LineEditor(30, session.env.get('TERM')).read() echo(u"\r\n\r\nset TERM to '%s'? [yn]" % (term,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): session.env['TERM'] = term break elif inp2 in (u'n', u'N'): break elif is_self and inp in (u'w', u'W'): echo(u'\r\ntERMiNAl Width: ') width = LineEditor(3, str(term.width)).read() try: width = int(width) except ValueError: echo(invalid) return True if width < 0 or width > 999: echo(invalid) return True echo(u"\r\n\r\nset COLUMNS=%d? [yn]" % (width,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): term.columns = width break elif inp2 in (u'n', u'N'): break elif is_self and inp in (u'h', u'H'): echo(u'\r\ntERMiNAl hEiGht: ') height = LineEditor(3, str(term.height)).read() try: height = int(height) except ValueError: echo(invalid) return True if height < 0 or height > 999: echo(invalid) return True echo(u"\r\n\r\nset LINES=%d? [yn]" % (height,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): term.rows = height break elif inp2 in (u'n', u'N'): break elif 'sysop' in session.user.groups and inp in (u'd', u'D',): echo(u"\r\n\r\ndElEtE %s ? [yn]" % (user.handle,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user.delete() break elif inp2 in (u'n', u'N'): break EXIT = True elif 'sysop' in session.user.groups and inp in (u's', u'S',): sysop = not 'sysop' in user.groups echo(u"\r\n\r\n%s SYSOP ACCESS? [yn]" % ( 'ENAblE' if sysop else 'diSAblE',)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): if sysop: user.groups.add('sysop') else: user.groups.remove('sysop') user.save() break elif inp2 in (u'n', u'N'): break elif inp in (u'p', u'P'): from x84.default.nua import set_password set_password(user) echo(u"\r\n\r\nSEt PASSWORd ? [yn]") while True: inp2 = getch() if inp2 in (u'y', u'Y'): user.save() break elif inp2 in (u'n', u'N'): break elif inp in (u'.',): echo(term.move(0, 0) + term.normal + term.clear) echo(term.move(int(term.height * .8), 0)) for line in Ansi(ABOUT_DOT_PLAN).wrap( term.width / 3).splitlines(): echo(line.center(term.width).rstrip() + u'\r\n') echo(u'\r\n\r\nPRESS ANY kEY ...') getch() if is_self: gosub('editor', '.plan') else: tmpkey = '%s-%s' % (user.handle, user.plan) draft = user.get('.plan', u'') session.user[tmpkey] = draft gosub('editor', tmpkey) if session.user.get(tmpkey, u'') != draft: echo(u"\r\n\r\nSEt .PlAN ? [yn]") while True: inp2 = getch() if inp2 in (u'y', u'Y'): user['.plan'] = session.user[tmpkey] break elif inp2 in (u'n', u'N'): break elif inp in (u'l', u'L'): echo(term.move(term.height - 1, 0)) set_location(user) echo(u"\r\n\r\nSEt lOCAtiON tO '%s'? [yn]" % (user.location,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user.save() break elif inp2 in (u'n', u'N'): break elif inp in (u'e', u'E'): echo(term.move(term.height - 1, 0)) set_email(user) echo(u"\r\n\r\nSEt EMAil tO '%s'? [yn]" % (user.email,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user.save() break elif inp2 in (u'n', u'N'): break elif inp in (u'i', u'I'): echo(u'\r\ntiMEOUt (0=NONE): ') timeout = LineEditor(6, str(user.get('timeout', def_timeout))).read() try: timeout = int(timeout) except ValueError: echo(invalid) return True if timeout < 0: echo(invalid) return True echo(u"\r\n\r\nSet tiMEOUt=%s? [yn]" % ( timeout if timeout else 'None',)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user['timeout'] = timeout session.send_event('set-timeout', timeout) break elif inp2 in (u'n', u'N'): break elif inp in (u'm', u'M'): mesg = False if user.get('mesg', True) else True echo(u"\r\n\r\n%s iNStANt MESSAGiNG? [yn]" % ( 'ENAblE' if mesg else 'DiSAblE',)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user['mesg'] = mesg break elif inp2 in (u'n', u'N'): break elif inp in (u'x', u'X'): expert = not user.get('expert', False) echo(u"\r\n\r\n%s EXPERt MOdE? [yn]" % ( 'ENAblE' if expert else 'DiSAblE',)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user['expert'] = expert break elif inp2 in (u'n', u'N'): break elif inp in (u'q', u'Q',): EXIT = True else: return False return True
def _loop(telnetd): """ Main event loop. Never returns. """ # pylint: disable=R0912,R0914,R0915 # Too many local variables (24/15) import logging import select import socket import time import sys from x84.bbs.exception import Disconnected from x84.terminal import terminals, ConnectTelnet, unregister from x84.bbs.ini import CFG from x84.telnet import TelnetClient from x84.db import DBHandler logger = logging.getLogger() if sys.maxunicode == 65535: logger.warn('Python not built with wide unicode support!') logger.info('listening %s/tcp', telnetd.port) timeout_ipc = CFG.getint('system', 'timeout_ipc') fileno_telnetd = telnetd.server_socket.fileno() locks = dict() def lookup(client): """ Given a telnet client, return a matching session of tuple (client, inp_queue, out_queue, lock). If no session matches a telnet client, (None, None, None, None) is returned. """ for _sid, tty in terminals(): if client == tty.client: return tty return None def telnet_recv(fds): """ test all telnet clients with file descriptors in list fds for recv(). If any are disconnected, signal exit to subprocess, unregister the session (if any). """ # read in any telnet input for client in (clt for (fno, clt) in telnetd.clients.iteritems() if fno in fds): try: client.socket_recv() except Disconnected as err: logger.info('%s Connection Closed: %s.', client.addrport(), err) tty = lookup(client) if tty is None: # no session found, just de-activate this client client.deactivate() else: # signal exit to sub-process and shutdown send_event, send_data = 'exception', Disconnected(err) tty.iqueue.send((send_event, send_data)) unregister(tty) def telnet_send(recv_list): """ test all telnet clients for send(). If any are disconnected, signal exit to subprocess, unregister the session, and return recv_list pruned of their file descriptors. """ for sid, tty in terminals(): if tty.client.send_ready(): try: tty.client.socket_send() except Disconnected as err: logger.debug('%s Disconnected: %s.', sid, err) # client.sock.fileno() can raised 'bad file descriptor', # so, to remove it from the recv_list, reverse match by # instance saved with its FD as a key for telnetd.clients! for _fd, _client in telnetd.clients.items(): if tty.client == _client: if _fd in recv_list: recv_list.remove(_fd) break send_event, send_data = 'exception', Disconnected(err) tty.iqueue.send((send_event, send_data,)) unregister(tty) return recv_list def accept(): """ accept new connection from telnetd.server_socket, and instantiate a new TelnetClient, registering it with dictionary telnetd.clients, and spawning an unmanaged thread for negotiating TERM. """ try: sock, address_pair = telnetd.server_socket.accept() # busy signal if telnetd.client_count() > telnetd.MAX_CONNECTIONS: try: sock.shutdown(socket.SHUT_RDWR) except socket.error: pass sock.close() logger.error('refused new connect; maximum reached.') return client = TelnetClient(sock, address_pair, telnetd.on_naws) telnetd.clients[client.sock.fileno()] = client # spawn negotiation and process registration thread ConnectTelnet(client).start() logger.info('%s Connected.', client.addrport()) except socket.error as err: logger.error('accept error %d:%s', err[0], err[1],) @timeout_alarm(timeout_ipc, False) # REMOVEME def f_send_event(iqueue, event, data): """ Send event to subprocess, signaling an alarm timeout if blocked. """ iqueue.send((event, data)) return True def send_input(client, iqueue): """ Send tcp input to subprocess as 'input' event, signaling an alarm timeout and re-buffering input if blocked. The reasons for the input buffer to block are vaugue """ inp = client.get_input() retval = f_send_event(iqueue, 'input', inp) # if timeout occured, re-buffer input if not retval: client.recv_buffer.fromstring(inp) return retval def session_send(): """ Test all sessions for idle timeout, and signal exit to subprocess, unregister the session. Also test for data received by telnet client, and send to subprocess as 'input' event. """ # accept session event i/o, such as output for sid, tty in terminals(): # poll about and kick off idle users if tty.timeout and tty.client.idle() > tty.timeout: send_event = 'exception' send_data = Disconnected('timeout: %ds' % (tty.client.idle())) tty.iqueue.send((send_event, send_data)) continue elif tty.client.input_ready(): # input buffered on tcp socket, attempt to send to client # with a signal alarm timeout; raising a warning if exceeded. if not send_input(tty.client, tty.iqueue): logger.warn('%s input buffer exceeded', sid) tty.client.deactivate() def handle_lock(tty, event, data): """ handle locking event of (lock-key, (method, stale)) """ method, stale = data if method == 'acquire': if event in locks: # lock already held; check for and display owner, or # acquire a lock from a now-deceased session. held=False for _sid, _tty in terminals(): if _sid == locks[event][1] and _sid != tty.sid: logger.debug('[%s] %r not acquired, held by %s.', tty.sid, (event, data), _sid) held=_sid break if held is not False: logger.debug('[%s] %r discovered stale lock, previously ' 'held by %s.', tty.sid, (event, data), held) del locks[event] if not event in locks: locks[event] = (time.time(), tty.sid) tty.iqueue.send((event, True,)) logger.debug('[%s] %r granted.', tty.sid, (event, data)) else: # caller signals this kind of thread is short-lived, and any # existing lock older than 'stale' should be released. if (stale is not None and time.time() - locks[event][0] > stale): tty.iqueue.send((event, True,)) locks[event] = (time.time(), tty.sid) logger.warn('[%s] %r stale %fs.', tty.sid, (event, data), time.time() - locks[event][0]) # signal busy with matching event, data=False else: tty.iqueue.send((event, False,)) logger.debug('[%s] %r not acquired.', tty.sid, (event, data)) elif method == 'release': if not event in locks: logger.error('[%s] %r failed: no match', tty.sid, (event, data)) else: del locks[event] logger.debug('[%s] %r removed.', tty.sid, (event, data)) def session_recv(fds): """ receive data waiting for session; all data received from subprocess is in form (event, data), and is handled by ipc_recv. if stale is not None, elapsed time lock was held to consider stale and acquire anyway. no actual locks are held or released, just a simple dictionary state/time tracking system. """ disp_handle = lambda handle: ((handle + u' ') if handle is not None and 0 != len(handle) else u'') disp_origin = lambda client: client.addrport().split(':', 1)[0] for sid, tty in terminals(): while tty.oqueue.fileno() in fds and tty.oqueue.poll(): # receive data from pipe, unregister if any error, try: event, data = tty.oqueue.recv() except (EOFError, IOError) as err: # sub-process unexpectedly closed logger.exception(err) unregister(tty) return # 'exit' event, unregisters client if event == 'exit': unregister(tty) return # 'logger' event, propogated upward elif event == 'logger': # prefix message with 'ip:port/nick ' data.msg = '%s[%s] %s' % ( disp_handle(data.handle), disp_origin(tty.client), data.msg) logger.handle(data) # 'output' event, buffer for tcp socket elif event == 'output': tty.client.send_unicode(ucs=data[0], encoding=data[1]) # 'remote-disconnect' event, hunt and destroy elif event == 'remote-disconnect': send_to = data[0] for _sid, _tty in terminals(): if send_to == _sid: send_event = 'exception' send_val = Disconnected( 'remote-disconnect by %s' % (sid,)) tty.iqueue.send((send_event, send_val)) unregister(tty) break # 'route': message passing directly from one session to another elif event == 'route': logger.debug('route %r', (event, data)) tgt_sid, send_event, send_val = data[0], data[1], data[2:] for _sid, _tty in terminals(): if tgt_sid == _sid: _tty.iqueue.send((send_event, send_val)) break # 'global': message broadcasting to all sessions elif event == 'global': logger.debug('broadcast %r', (event, data)) for _sid, _tty in terminals(): if sid != _sid: _tty.iqueue.send((event, data,)) # 'set-timeout': set user-preferred timeout elif event == 'set-timeout': logger.debug('set-timeout %d', data) tty.timeout = data # 'db*': access DBProxy API for shared sqlitedict elif event.startswith('db'): thread = DBHandler(tty.iqueue, event, data) thread.start() # 'lock': access fine-grained bbs-global locking elif event.startswith('lock'): handle_lock(tty, event, data) else: assert False, 'unhandled %r' % ((event, data),) # # main event loop # while True: # shutdown, close & delete inactive sockets, for fileno, client in [(_fno, _client) for (_fno, _client) in telnetd.clients.items() if not _client.active]: logger.info('close %s', telnetd.clients[fileno].addrport(),) try: client.sock.shutdown(socket.SHUT_RDWR) except socket.error: pass client.sock.close() # signal exit to any matching session for _sid, tty in terminals(): if client == tty.client: send_event = 'exception' send_data = Disconnected('deactivated') tty.iqueue.send((send_event, send_data,)) break # unregister del telnetd.clients[fileno] # send tcp data, pruning list of any clients d/c during activity fds = telnet_send([fileno_telnetd] + telnetd.clients.keys()) # extend fd list with all session Pipes fds.extend([tty.oqueue.fileno() for _sid, tty in terminals()]) try: fds = select.select(fds, [], [], 0.1)[0] except select.error as err: logger.exception(err) fds = list() if fileno_telnetd in fds: accept() # recv telnet data, telnet_recv(fds) # recv and handle session events, session_recv(fds) # send any session input data, poll timeout session_send()
def process_keystroke(inp, user): """ Process keystroke, ``inp``, for target ``user``. """ # pylint: disable=R0914,R0912,R0915,R0911,W0603 # Too many local variables # Too many branches # Too many statements # Too many return statements # Using the global statement # ^ lol, this is one of those things that should be # refactored into smaller subroutines =) from x84.bbs import getsession, getterminal, echo, getch, gosub from x84.bbs import LineEditor, ScrollingEditor from x84.default.nua import set_email, set_location from x84.bbs.ini import CFG def_timeout = CFG.getint('system', 'timeout') global EXIT session, term = getsession(), getterminal() is_self = bool(user.handle == session.user.handle) invalid = u'\r\niNVAlid.' assert is_self or 'sysop' in session.user.groups if is_self and inp in (u'c', u'C'): gosub('charset') elif is_self and inp in (u't', u'T'): echo(term.move(term.height - 1, 0)) echo(ABOUT_TERM + u'\r\n') echo(u'\r\ntERMiNAl tYPE: ') term = LineEditor(30, session.env.get('TERM')).read() echo(u"\r\n\r\nset TERM to '%s'? [yn]" % (term,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): session.env['TERM'] = term break elif inp2 in (u'n', u'N'): break elif is_self and inp in (u'w', u'W'): echo(u'\r\ntERMiNAl Width: ') width = LineEditor(3, str(term.width)).read() try: width = int(width) except ValueError: echo(invalid) return True if width < 0 or width > 999: echo(invalid) return True echo(u"\r\n\r\nset COLUMNS=%d? [yn]" % (width,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): term.columns = width break elif inp2 in (u'n', u'N'): break elif is_self and inp in (u'h', u'H'): echo(u'\r\ntERMiNAl hEiGht: ') height = LineEditor(3, str(term.height)).read() try: height = int(height) except ValueError: echo(invalid) return True if height < 0 or height > 999: echo(invalid) return True echo(u"\r\n\r\nset LINES=%d? [yn]" % (height,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): term.rows = height break elif inp2 in (u'n', u'N'): break elif 'sysop' in session.user.groups and inp in (u'd', u'D',): echo(u"\r\n\r\ndElEtE %s ? [yn]" % (user.handle,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user.delete() break elif inp2 in (u'n', u'N'): break EXIT = True elif 'sysop' in session.user.groups and inp in (u's', u'S',): sysop = not 'sysop' in user.groups echo(u"\r\n\r\n%s SYSOP ACCESS? [yn]" % ( 'ENAblE' if sysop else 'diSAblE',)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): if sysop: user.groups.add('sysop') else: user.groups.remove('sysop') user.save() break elif inp2 in (u'n', u'N'): break elif inp in (u'p', u'P'): from x84.default.nua import set_password set_password(user) echo(u"\r\n\r\nSEt PASSWORd ? [yn]") while True: inp2 = getch() if inp2 in (u'y', u'Y'): user.save() break elif inp2 in (u'n', u'N'): break elif inp in (u'k', 'K',): change = True if user.get('pubkey', False): echo(u"\r\n\r\nSSh PUbliC kEY AlREAdY SEt, ChANGE ? [yn]") while True: inp2 = getch() if inp2 in (u'y', u'Y'): break elif inp2 in (u'n', u'N'): change = False break if change: echo(u"\r\n\r\njUSt PAStE iN YOUR PUbliC kEY, MAkE SURE itS " u"All iN ONE lINE!\r\n\r\n\r\n") editor = ScrollingEditor(width=term.width - 6, yloc=term.height - 3, xloc=3) echo(term.reverse_yellow) pubkey = editor.read() echo(term.normal) if pubkey is not None: if not pubkey.strip(): if user.get('pubkey', None): del user['pubkey'] echo(u'\r\n\r\nYOUR SECREtS ARE NEVER SAfE!\r\n') else: echo(u'\r\n\r\nWElCOME tO thE bROthERhOOd!\r\n') user['pubkey'] = pubkey user.save() getch(timeout=1.5) else: echo(u'\r\n\r\nCANCElEd!!\r\n') getch(timeout=0.5) elif inp in (u'.',): echo(term.move(0, 0) + term.normal + term.clear) echo(term.move(int(term.height * .8), 0)) for line in term.wrap(ABOUT_DOT_PLAN, term.width / 3): echo(line.center(term.width).rstrip() + u'\r\n') echo(u'\r\n\r\nPRESS ANY kEY ...') getch() if is_self: gosub('editor', '.plan') else: tmpkey = '%s-%s' % (user.handle, user.plan) draft = user.get('.plan', u'') session.user[tmpkey] = draft gosub('editor', tmpkey) if session.user.get(tmpkey, u'') != draft: echo(u"\r\n\r\nSEt .PlAN ? [yn]") while True: inp2 = getch() if inp2 in (u'y', u'Y'): user['.plan'] = session.user[tmpkey] break elif inp2 in (u'n', u'N'): break elif inp in (u'l', u'L'): echo(term.move(term.height - 1, 0)) set_location(user) echo(u"\r\n\r\nSEt lOCAtiON tO '%s'? [yn]" % (user.location,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user.save() break elif inp2 in (u'n', u'N'): break elif inp in (u'e', u'E'): echo(term.move(term.height - 1, 0)) set_email(user) echo(u"\r\n\r\nSEt EMAil tO '%s'? [yn]" % (user.email,)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user.save() break elif inp2 in (u'n', u'N'): break elif inp in (u'i', u'I'): echo(u'\r\ntiMEOUt (0=NONE): ') timeout = LineEditor(6, str(user.get('timeout', def_timeout))).read() try: timeout = int(timeout) except ValueError: echo(invalid) return True if timeout < 0: echo(invalid) return True echo(u"\r\n\r\nSet tiMEOUt=%s? [yn]" % ( timeout if timeout else 'None',)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user['timeout'] = timeout session.send_event('set-timeout', timeout) break elif inp2 in (u'n', u'N'): break elif inp in (u'm', u'M'): mesg = False if user.get('mesg', True) else True echo(u"\r\n\r\n%s iNStANt MESSAGiNG? [yn]" % ( 'ENAblE' if mesg else 'DiSAblE',)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user['mesg'] = mesg break elif inp2 in (u'n', u'N'): break elif inp in (u'x', u'X'): expert = not user.get('expert', False) echo(u"\r\n\r\n%s EXPERt MOdE? [yn]" % ( 'ENAblE' if expert else 'DiSAblE',)) while True: inp2 = getch() if inp2 in (u'y', u'Y'): user['expert'] = expert break elif inp2 in (u'n', u'N'): break elif inp in (u'q', u'Q',): EXIT = True else: return False return True
def showart(filepattern, encoding=None, auto_mode=True, center=False, poll_cancel=False, msg_cancel=None): """ Yield unicode sequences for any given ANSI Art (of art_encoding). Effort is made to parse SAUCE data, translate input to unicode, and trim artwork too large to display. If ``poll_cancel`` is not ``False``, represents time as float for each line to block for keypress -- if any is received, then iteration ends and ``msg_cancel`` is displayed as last line of art. If you provide no ``encoding``, the piece encoding will be based on either the encoding in the SAUCE record, the configured default or the default fallback ``CP437`` encoding. Alternate codecs are available if you provide the ``encoding`` argument. For example, if you want to show an Amiga style ASCII art file:: >>> from x84.bbs import echo, showart >>> for line in showart('test.asc', 'topaz'): ... echo(line) The ``auto_mode`` flag will, if set, only respect the selected encoding if the active session is UTF-8 capable. If ``center`` is set to ``True``, the piece will be centered respecting the current terminal's width. """ import random import glob import os from sauce import SAUCE from x84.bbs.ini import CFG session, term = getsession(), getterminal() # Open the piece try: filename = os.path.relpath(random.choice(glob.glob(filepattern))) except IndexError: filename = None if filename is None: yield u''.join(( term.bold_red(u'-- '), u'no files matching {0}'.format(filepattern), term.bold_red(u' --'), )) return # Parse the piece parsed = SAUCE(filename) # If no explicit encoding is given, we go through a couple of steps to # resolve the possible file encoding: if encoding is None: # 1. See if the SAUCE record has a font we know about, it's in the # filler if parsed.record and parsed.filler_str in SAUCE_FONT_MAP: encoding = SAUCE_FONT_MAP[parsed.filler_str] # 2. Get the system default art encoding elif CFG.has_option('system', 'art_utf8_codec'): encoding = CFG.get('system', 'art_utf8_codec') # 3. Fall back to CP437 else: encoding = 'cp437' # If auto_mode is enabled, we'll only use the input encoding on UTF-8 # capable terminals, because our codecs do not know how to "transcode" # between the various encodings. if auto_mode: def _decode(what): session = getsession() if session.encoding == 'utf8': return what.decode(encoding) elif session.encoding == 'cp437': return what.decode('cp437') else: return what # If auto_mode is disabled, we'll just respect whatever input encoding was # selected before else: _decode = lambda what: what.decode(encoding) # For wide terminals, center the piece on the screen using cursor movement, # if requested padding = u'' if center and term.width > 81: padding = term.move_x((term.width / 2) - 40) msg_cancel = msg_cancel or u''.join( (term.normal, term.bold_black(u'-- '), u'cancelled {0} by input'.format(filename), term.bold_black(u' --'), )) msg_too_wide = u''.join( (term.normal, term.bold_black(u'-- '), u'cancelled {0}, too wide:: {{0}}'.format(filename), term.bold_black(u' --'), )) lines = _decode(parsed.data).splitlines() for idx, line in enumerate(lines): # Allow slow terminals to cancel by pressing a keystroke if poll_cancel is not False and term.inkey(poll_cancel): yield u'\r\n' + term.center(msg_cancel) + u'\r\n' return line_length = term.length(line.rstrip()) if not padding and term.width < line_length: yield (u'\r\n' + term.center(msg_too_wide.format(line_length)) + u'\r\n') return if idx == len(lines) - 1: # strip DOS end of file (^Z) line = line.rstrip('\x1a') if not line.strip(): break yield padding + line + u'\r\n' yield term.normal
def __init__(self, client, sid, master_pipes): from x84.bbs.ini import CFG self.client = client self.sid = sid (self.master_write, self.master_read) = master_pipes self.timeout = CFG.getint('system', 'timeout')
def save(self, send_net=True, ctime=None): """ Save message in 'Msgs' sqlite db, and record index in 'tags' db. """ from x84.bbs.ini import CFG from x84.bbs import getsession session = getsession() use_session = bool(session is not None) log = logging.getLogger(__name__) new = self.idx is None or self._stime is None # persist message record to MSGDB db_msg = DBProxy(MSGDB, use_session=use_session) with db_msg: if new: self.idx = max([int(key) for key in db_msg.keys()] or [-1]) + 1 if ctime is not None: self._ctime = self._stime = ctime else: self._stime = datetime.datetime.now() new = True db_msg['%d' % (self.idx,)] = self # persist message idx to TAGDB db_tag = DBProxy(TAGDB, use_session=use_session) with db_tag: for tag in db_tag.keys(): msgs = db_tag[tag] if tag in self.tags and self.idx not in msgs: msgs.add(self.idx) db_tag[tag] = msgs log.debug("msg {self.idx} tagged '{tag}'" .format(self=self, tag=tag)) elif tag not in self.tags and self.idx in msgs: msgs.remove(self.idx) db_tag[tag] = msgs log.info("msg {self.idx} removed tag '{tag}'" .format(self=self, tag=tag)) for tag in [_tag for _tag in self.tags if _tag not in db_tag]: db_tag[tag] = set([self.idx]) # persist message as child to parent; if not hasattr(self, 'parent'): self.parent = None assert self.parent not in self.children if self.parent is not None: parent_msg = get_msg(self.parent) if self.idx != parent_msg.idx: parent_msg.children.add(self.idx) parent_msg.save() else: log.error('Parent idx same as message idx; stripping') self.parent = None with db_msg: db_msg['%d' % (self.idx)] = self if send_net and new and CFG.has_option('msg', 'network_tags'): self.queue_for_network() log.info( u"saved {new}{public}msg {post}, addressed to '{self.recipient}'." .format(new='new ' if new else '', public='public ' if 'public' in self.tags else '', post='post' if self.parent is None else 'reply', self=self))
def save(self, send_net=True, ctime=None): """ Save message in 'Msgs' sqlite db, and record index in 'tags' db. """ from x84.bbs.ini import CFG from x84.bbs import getsession session = getsession() use_session = bool(session is not None) log = logging.getLogger(__name__) new = self.idx is None or self._stime is None # persist message record to MSGDB db_msg = DBProxy(MSGDB, use_session=use_session) with db_msg: if new: self.idx = max(map(int, db_msg.keys()) or [-1]) + 1 if ctime is not None: self._ctime = self._stime = ctime else: self._stime = datetime.datetime.now() new = True db_msg['%d' % (self.idx, )] = self # persist message idx to TAGDB db_tag = DBProxy(TAGDB, use_session=use_session) with db_tag: for tag in db_tag.keys(): msgs = db_tag[tag] if tag in self.tags and self.idx not in msgs: msgs.add(self.idx) db_tag[tag] = msgs log.debug("msg {self.idx} tagged '{tag}'".format(self=self, tag=tag)) elif tag not in self.tags and self.idx in msgs: msgs.remove(self.idx) db_tag[tag] = msgs log.info("msg {self.idx} removed tag '{tag}'".format( self=self, tag=tag)) for tag in [_tag for _tag in self.tags if _tag not in db_tag]: db_tag[tag] = set([self.idx]) # persist message as child to parent; if not hasattr(self, 'parent'): self.parent = None assert self.parent not in self.children if self.parent is not None: parent_msg = get_msg(self.parent) if self.idx != parent_msg.idx: parent_msg.children.add(self.idx) parent_msg.save() else: log.error('Parent idx same as message idx; stripping') self.parent = None with db_msg: db_msg['%d' % (self.idx)] = self if send_net and new and CFG.has_option('msg', 'network_tags'): self.queue_for_network() log.info( u"saved {new}{public}msg {post}, addressed to '{self.recipient}'.". format(new='new ' if new else '', public='public ' if 'public' in self.tags else '', post='post' if self.parent is None else 'reply', self=self))
def main(msg=None): """ Main procedure. """ from x84.bbs import Msg, getsession, echo, getterminal from x84.bbs.ini import CFG session, term = getsession(), getterminal() new_message = True if msg is None else False network_tags = None is_network_msg = False if CFG.has_option('msg', 'network_tags'): network_tags = map( str.strip, CFG.get('msg', 'network_tags').split(',')) if new_message: msg = Msg() msg.tags = ('public',) elif network_tags is not None: net_tags = [tag for tag in network_tags if tag in msg.tags] is_network_msg = True if len(net_tags) > 0 else False banner() while True: session.activity = 'Constructing a %s message' % ( u'public' if u'public' in msg.tags else u'private',) if network_tags and new_message: is_network_msg = prompt_network(msg, network_tags) if not prompt_recipient(msg, is_network_msg): break if not prompt_subject(msg): break if not prompt_public(msg): break if not prompt_body(msg): break # XXX if not prompt_tags(msg): break if is_network_msg: # XX move to sub-func how_many = len([tag for tag in network_tags if tag in msg.tags]) if how_many == 0: echo(u''.join((u'\r\n', term.bold_yellow_on_red( u' YOU tOld ME thiS WAS A NEtWORk MESSAGE. ' u'WhY did YOU liE?! '), u'\r\n'))) term.inkey(timeout=7) continue if how_many > 1: echo(u''.join(( u'\r\n', term.bold_yellow_on_red( u' ONlY ONE NEtWORk CAN bE POStEd tO At A tiME, ' u'SORRY '), u'\r\n'))) continue if u'public' not in msg.tags: echo(u''.join((u'\r\n', term.bold_yellow_on_red( u" YOU ShOUldN't SENd PRiVAtE " u"MESSAGES OVER tHE NEtWORk... "), u'\r\n'))) term.inkey(timeout=7) continue display_msg(msg) if not prompt_send(): break msg.save() session.user['msgs_sent'] = session.user.get('msgs_sent', 0) + 1 return True return False
def _loop(servers): """ Main event loop. Never returns. """ # pylint: disable=R0912,R0914,R0915 # Too many local variables (24/15) import logging import select import sys from x84.terminal import get_terminals, kill_session from x84.bbs.ini import CFG from x84.fail2ban import get_fail2ban_function SELECT_POLL = 0.02 # polling time is 20ms # WIN32 has no session_fds (multiprocess queues are not polled using # select), use a persistently empty set; for WIN32, sessions are always # polled for data at every loop. WIN32 = sys.platform.lower().startswith('win32') session_fds = set() log = logging.getLogger('x84.engine') if not len(servers): raise ValueError("No servers configured for event loop! (ssh, telnet)") tap_events = CFG.getboolean('session', 'tap_events') check_ban = get_fail2ban_function() locks = dict() while True: # shutdown, close & delete inactive clients, for server in servers: # bbs sessions that are no longer active on the socket # level -- send them a 'kill signal' for key, client in server.clients.items()[:]: if not client.is_active(): kill_session(client, 'socket shutdown') del server.clients[key] # on-connect negotiations that have completed or failed. # delete their thread instance from further evaluation for thread in [_thread for _thread in server.threads if _thread.stopped][:]: server.threads.remove(thread) server_fds = [server.server_socket.fileno() for server in servers] client_fds = [fd for fd in server.client_fds() for server in servers] check_r = server_fds + client_fds if not WIN32: session_fds = get_session_output_fds(servers) check_r += session_fds # We'd like to use timeout 'None', but the registration of # a new client in terminal.start_process surprises us with new # file descriptors for the session i/o. unless we loop for # additional `session_fds', a connecting client would block. ready_r, _, _ = select.select(check_r, [], [], SELECT_POLL) for fd in ready_r: # see if any new tcp connections were made server = find_server(servers, fd) if server is not None: accept(log, server, check_ban) # receive new data from tcp clients. client_recv(servers, log) terms = get_terminals() # receive new data from session terminals if WIN32 or set(session_fds) & set(ready_r): try: session_recv(locks, terms, log, tap_events) except IOError, err: # if the ipc closes while we poll, warn and continue log.warn(err) # send tcp data to clients client_send(terms, log) # send session data, poll for user-timeout and disconnect them session_send(terms)
def main(msg=None): """ Main procedure. """ from x84.bbs import Msg, getsession, echo, getterminal from x84.bbs.ini import CFG session, term = getsession(), getterminal() new_message = True if msg is None else False network_tags = None is_network_msg = False if CFG.has_option('msg', 'network_tags'): network_tags = map( str.strip, CFG.get('msg', 'network_tags').split(',')) if CFG.has_option('msg', 'server_tags'): if network_tags is None: network_tags = list() network_tags += map( str.strip, CFG.get('msg', 'server_tags').split(',')) if new_message: msg = Msg() msg.tags = ('public',) elif network_tags is not None: net_tags = [tag for tag in network_tags if tag in msg.tags] is_network_msg = True if len(net_tags) > 0 else False banner() while True: session.activity = 'Constructing a %s message' % ( u'public' if u'public' in msg.tags else u'private',) if network_tags and new_message: is_network_msg = prompt_network(msg, network_tags) if not prompt_recipient(msg, is_network_msg): break if not prompt_subject(msg): break if not prompt_public(msg): break if not prompt_body(msg): break # XXX if not prompt_tags(msg): break if is_network_msg: # XX move to sub-func how_many = len([tag for tag in network_tags if tag in msg.tags]) if how_many == 0: echo(u''.join((u'\r\n', term.bold_yellow_on_red( u' YOU tOld ME thiS WAS A NEtWORk MESSAGE. ' u'WhY did YOU liE?! '), u'\r\n'))) term.inkey(timeout=7) continue if how_many > 1: echo(u''.join(( u'\r\n', term.bold_yellow_on_red( u' ONlY ONE NEtWORk CAN bE POStEd tO At A tiME, ' u'SORRY '), u'\r\n'))) continue if u'public' not in msg.tags: echo(u''.join((u'\r\n', term.bold_yellow_on_red( u" YOU ShOUldN't SENd PRiVAtE " u"MESSAGES OVER tHE NEtWORk... "), u'\r\n'))) term.inkey(timeout=7) continue display_msg(msg) if not prompt_send(): break msg.save() session.user['msgs_sent'] = session.user.get('msgs_sent', 0) + 1 return True return False