def close_existing_session(self):
# make sure room is closed
resp = self.post(reverse('CloseBrowserBotsSession'))
if not resp.ok:
msg = ('Request to close existing browser bots session failed. '
'Response: {} {}'.format(repr(resp), resp.text))
raise AssertionError(msg)
async def create_session_then_send_start_link(self, use_browser_bots,
**session_kwargs):
try:
session = otree.session.create_session_traceback_wrapper(
**session_kwargs)
if use_browser_bots:
otree.bots.browser.initialize_session(session_pk=session.id,
case_number=None)
# the "elif" is because if it uses browser bots, then exogenous data is mocked
# as part of run_bots.
# 2020-07-07: this queries the DB, shouldn't i use database_sync_to_async?
# i don't get any error
elif session.is_demo:
session.mock_exogenous_data()
except Exception as e:
if isinstance(e, otree.session.CreateSessionError):
e = e.__cause__
traceback_str = ''.join(
traceback.format_exception(type(e), e, e.__traceback__))
await self.send_response_to_browser(
dict(error=f'Failed to create session: {e}',
traceback=traceback_str))
# i used to do "raise" here.
# if I raise, then in non-demo sessions, the traceback is not displayed
# as it should be.
# Instead, there is an error
# "Server error occurred, check Sentry or the logs"
# I guess the websocket gets cut off? that's also why my test_traceback test was failing.
# why did I use raise in the first place?
# was it just so the traceback would go to the console or Sentry?
# if we show it in the browser, there's no need to show it anywhere else, right?
# maybe it was just a fallback in case the TB was truncated?
# or because the traceback should not be shown outside of DEBUG mode
else:
from otree.asgi import reverse
session_home_view = ('MTurkCreateHIT'
if session.is_mturk else 'SessionStartLinks')
await self.send_response_to_browser(
{'session_url': reverse(session_home_view, code=session.code)})
def launch_browser(self, num_participants, secret_code):
wait_room_url = urljoin(
self.server_url,
reverse('BrowserBotStartLink', admin_secret_code=secret_code),
)
for browser_cmd in self.browser_cmds:
args = [browser_cmd]
if os.environ.get('BROWSER_BOTS_USE_HEADLESS'):
args.append('--headless')
# needed in windows
args.append('--disable-gpu')
# for some reason --screenshot OR --remote-debugging-port is necessary to get my JS to execute?!?
# NO idea why. --remote-debugging-port gets me further than --screenshot, which gets stuck
# on skip_lookahead
# --remote-debugging-port=9222 works also
args.append('--remote-debugging-port=9222')
for i in range(num_participants):
args.append(wait_room_url)
try:
return Popen(args)
except FileNotFoundError:
pass
msg = (
'Could not find a browser at the following path(s):\n\n'
'{}\n\n'
'Note: in settings.py, you can set BROWSER_COMMAND '
'to the path to your browser executable. '
'Otherwise, oTree will try to launch Chrome from its usual path.'
).format('\n'.join(self.browser_cmds))
# we should show the original exception, because it might have
# valuable info about why the browser didn't launch,
# not raise from None.
raise FileNotFoundError(msg)
def vars_for_template(self):
session = self.session
room = session.get_room()
from otree.models import Participant
p_codes = values_flat(session.pp_set.order_by('id_in_session'),
Participant.code)
participant_urls = []
for code in p_codes:
rel_url = otree.common.participant_start_url(code)
url = self.request.base_url.replace(path=rel_url)
participant_urls.append(url)
context = dict(use_browser_bots=session.use_browser_bots,
participant_urls=participant_urls)
if room:
context.update(
room_wide_url=room.get_room_wide_url(self.request),
room=room,
collapse_links=True,
)
else:
from otree.asgi import reverse
anonymous_url = self.request.base_url.replace(
path=reverse('JoinSessionAnonymously',
anonymous_code=session._anonymous_code))
context.update(
anonymous_url=anonymous_url,
num_participants=len(participant_urls),
splitscreen_mode_on=len(participant_urls) <= 3,
)
return context
class URLs:
create_browser_bots = reverse('CreateBrowserBotsSession')