def POST(self, USERNAME, PASSWORD, LOGIN_BUTTON="", url=""):
if LOGIN_BUTTON:
if user_exists(USERNAME):
if potential_attack(USERNAME):
deactivate_user(USERNAME)
logger.security("user account deactivated")
elif user.login(USERNAME, PASSWORD):
username = user.username
user_id = user.id
msg = '<a href="/users/%(user_id)s">%(username)s</a> logged in' % locals()
logger.info("user %s successfully logged in" % USERNAME)
logger.activity("session", msg)
return redirect_to("/")
else:
logger.security("unknown username (%s)" % USERNAME)
logger.security("failed login attempt", USERNAME)
error("invalid username or password")
else:
# API call
if user.login(USERNAME, PASSWORD):
return "OK"
else:
return "FAIL"
def login_button(self):
if login_form.validate(data):
values = login_form.evaluate()
username = values['USERNAME']
password = values['PASSWORD']
remember_me = values['REMEMBER_ME']
as_api = os.environ.get('HTTP_ACCEPT','') == 'application/json'
if user_exists(username):
if potential_attack(username):
deactivate_user(username)
logger.security('user account (%s) deactivated' % username)
elif user.login(username, password, remember_me):
if as_api:
logger.info('user %s successfully logged in via api' % username)
return '{}'
else:
username = user.username
user_id = user.id
msg = '<a href="/users/%(user_id)s">%(username)s</a> logged in' % locals()
logger.activity('session', msg)
logger.info('user %s successfully logged in' % username)
referrer = data.get('referrer')
if referrer:
return redirect_to(referrer)
return redirect_to('/'+user.default_app)
else:
logger.security('unknown username (%s)' % username)
logger.security('failed login attempt', username)
if as_api:
return '{"message": "invalid username or password"}'
else:
error('invalid username or password')
def generate_response(instance_path, start_time=None):
"""generate response to web request"""
profiler = None
debugging = True
system_timer = SystemTimer(start_time)
# capture stdout
real_stdout = sys.stdout
sys.stdout = StringIO.StringIO()
try:
try:
# initialize context
system.setup(instance_path, request.server, system_timer)
system_timer.add('system initializated')
user.setup()
system_timer.add('user initializated')
manager.setup()
system_timer.add('manager initializated')
if user.is_disabled:
# we know who the user is, and their account is disabled
msg = 'User {user.link} is disabled'
raise UnauthorizedException(msg.format(user=user))
debugging = (system.debugging or system.show_errors
or user.is_developer or user.is_administrator)
session = system.session
if system.track_visits:
visited(request.subject, session.sid)
csrf_token = data.pop('csrf_token', None)
if request.method == 'POST' and system.csrf_validation:
if csrf_token == session.csrf_token:
del session.csrf_token
else:
msg = 'expected:%s got:%s' % (session.csrf_token,
csrf_token)
raise CrossSiteRequestForgeryAttempt(msg)
requested_app_name = manager.requested_app_name()
default_app_name = manager.default_app_name()
os.chdir(system.config.sites_path)
if not request.route:
request.route.append(default_app_name)
for app in manager.apps.values():
app.initialize(request)
if manager.can_run(requested_app_name):
system.app = manager.get_app(requested_app_name)
profiler = (system.profile or user.profile) \
and cProfile.Profile()
if profiler:
profiler.enable()
system_timer.add('app ready')
response = system.app.run(request)
system_timer.add('app returned')
if profiler:
profiler.disable()
elif manager.can_run_if_login(requested_app_name):
# as it stands now, an attacker can generate a list of
# enabled apps by iterating the/a namespace and seeing
# which ones return a logon form.
def referrer():
"""get the referrer"""
uri = urllib.urlencode(dict(referrer=request.uri))
return uri and "?{}".format(uri) or ''
response = redirect_to('/login{}'.format(referrer()))
elif not requested_app_name:
app = manager.get_app(default_app_name)
if app:
system.app = app
else:
raise Exception(default_app_name + ' app missing')
response = system.app.run(request)
elif manager.can_run(default_app_name):
response = redirect_to('/')
else:
response = Page(PAGE_MISSING_MESSAGE).render()
response.status = '404'
timeout = session.save_session()
set_session_cookie(
response,
session.sid,
request.subject,
timeout,
system.secure_cookies,
)
except UnauthorizedException:
logger.security('unauthorized access attempt')
if debugging:
raise
else:
response = Page(UNAUTHORIZED_MESSAGE).render()
response.status = '403'
except CrossSiteRequestForgeryAttempt:
logger.security('cross site forgery attempt')
if debugging:
raise
else:
response = redirect_to('/')
except SessionExpiredException:
response = Page(
load_template('system_application_session_expired',
SESSION_EXPIRED_MESSAGE)).render()
except:
t = htmlquote(traceback.format_exc())
logger.error(t)
if debugging:
try:
tpl = load_template('system_application_error_developer',
STANDARD_ERROR_MESSAGE)
msg = tpl % dict(message=t)
except:
msg = SYSTEM_ERROR_MESSAGE % dict(message=t)
else:
try:
msg = load_template('system_application_error_user',
FRIENDLY_ERROR_MESSAGE)
except:
msg = FRIENDLY_ERROR_MESSAGE
try:
response = Page(msg).render()
except:
response = HTMLResponse(msg)
if profiler:
stats_s = StringIO.StringIO()
sortby = 'cumulative'
ps = pstats.Stats(profiler, stream=stats_s)
ps.sort_stats(sortby)
ps.print_stats(.1)
t = stats_s.getvalue()
t = t.replace(system.lib_path, '~zoom').replace(
'/usr/lib/python2.7/dist-packages/',
'~').replace('/usr/local/lib/python2.7/dist-packages/', '~')
print(''.join([
'\n\n System Performance Metrics\n ' + '=' * 30,
system_timer.report(),
system.database.report(),
system.db.report(), ' Profiler\n ------------\n', t
]))
finally:
printed_output = sys.stdout.getvalue()
sys.stdout.close()
sys.stdout = real_stdout
logger.complete()
system.release()
if hasattr(response, 'printed_output'):
response.printed_output = printed_output.replace('<', '<').replace(
'>', '>')
return response
def generate_response(instance_path, start_time=None):
"""generate response to web request"""
profiler = None
debugging = True
system_timer = SystemTimer(start_time)
# capture stdout
real_stdout = sys.stdout
sys.stdout = StringIO.StringIO()
try:
try:
# initialize context
system.setup(instance_path, request.server, system_timer)
system_timer.add('system initializated')
user.setup()
system_timer.add('user initializated')
manager.setup()
system_timer.add('manager initializated')
if user.is_disabled:
# we know who the user is, and their account is disabled
msg = 'User {user.link} is disabled'
raise UnauthorizedException(msg.format(user=user))
debugging = (system.debugging or system.show_errors or
user.is_developer or user.is_administrator)
session = system.session
if system.track_visits:
visited(request.subject, session.sid)
csrf_token = data.pop('csrf_token', None)
if request.method == 'POST' and system.csrf_validation:
if csrf_token == session.csrf_token:
del session.csrf_token
else:
msg = 'expected:%s got:%s' % (
session.csrf_token, csrf_token)
raise CrossSiteRequestForgeryAttempt(msg)
requested_app_name = manager.requested_app_name()
default_app_name = manager.default_app_name()
os.chdir(system.config.sites_path)
if not request.route:
request.route.append(default_app_name)
for app in manager.apps.values():
app.initialize(request)
if manager.can_run(requested_app_name):
system.app = manager.get_app(requested_app_name)
profiler = (system.profile or user.profile) \
and cProfile.Profile()
if profiler:
profiler.enable()
system_timer.add('app ready')
response = system.app.run(request)
system_timer.add('app returned')
if profiler:
profiler.disable()
elif manager.can_run_if_login(requested_app_name):
# as it stands now, an attacker can generate a list of
# enabled apps by iterating the/a namespace and seeing
# which ones return a logon form.
def referrer():
"""get the referrer"""
uri = urllib.urlencode(dict(referrer=request.uri))
return uri and "?{}".format(uri) or ''
response = redirect_to('/login{}'.format(referrer()))
elif not requested_app_name:
app = manager.get_app(default_app_name)
if app:
system.app = app
else:
raise Exception(default_app_name + ' app missing')
response = system.app.run(request)
elif manager.can_run(default_app_name):
response = redirect_to('/')
else:
response = Page(PAGE_MISSING_MESSAGE).render()
response.status = '404'
timeout = session.save_session()
set_session_cookie(
response,
session.sid,
request.subject,
timeout,
system.secure_cookies,
)
except UnauthorizedException:
logger.security('unauthorized access attempt')
if debugging:
raise
else:
response = Page(UNAUTHORIZED_MESSAGE).render()
response.status = '403'
except CrossSiteRequestForgeryAttempt:
logger.security('cross site forgery attempt')
if debugging:
raise
else:
response = redirect_to('/')
except SessionExpiredException:
response = Page(load_template(
'system_application_session_expired',
SESSION_EXPIRED_MESSAGE)).render()
except:
t = htmlquote(traceback.format_exc())
logger.error(t)
if debugging:
try:
tpl = load_template(
'system_application_error_developer',
STANDARD_ERROR_MESSAGE)
msg = tpl % dict(message=t)
except:
msg = SYSTEM_ERROR_MESSAGE % dict(message=t)
else:
try:
msg = load_template(
'system_application_error_user',
FRIENDLY_ERROR_MESSAGE
)
except:
msg = FRIENDLY_ERROR_MESSAGE
try:
response = Page(msg).render()
except:
response = HTMLResponse(msg)
if profiler:
stats_s = StringIO.StringIO()
sortby = 'cumulative'
ps = pstats.Stats(profiler, stream=stats_s)
ps.sort_stats(sortby)
ps.print_stats(.1)
t = stats_s.getvalue()
t = t.replace(
system.lib_path, '~zoom'
).replace(
'/usr/lib/python2.7/dist-packages/',
'~'
).replace(
'/usr/local/lib/python2.7/dist-packages/',
'~'
)
print(''.join([
'\n\n System Performance Metrics\n ' + '=' * 30,
system_timer.report(),
system.database.report(),
system.db.report(),
' Profiler\n ------------\n',
t
]))
finally:
printed_output = sys.stdout.getvalue()
sys.stdout.close()
sys.stdout = real_stdout
logger.complete()
system.release()
if hasattr(response, 'printed_output'):
response.printed_output = printed_output.replace(
'<', '<'
).replace(
'>', '>'
)
return response
