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Make TickerHandler handle malformed input cleaner. Resolve #2191

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This commit is contained in:
Griatch 2020-09-18 22:03:38 +02:00
parent 680a49416e
commit 7af702055b
1 changed files with 11 additions and 9 deletions
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20
evennia/scripts/tickerhandler.py
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@ -73,7 +73,7 @@ from evennia.scripts.scripts import ExtendedLoopingCall
from evennia.server.models import ServerConfig
from evennia.utils.logger import log_trace, log_err
from evennia.utils.dbserialize import dbserialize, dbunserialize, pack_dbobj
from evennia.utils import variable_from_module
from evennia.utils import variable_from_module, inherits_from
_GA = object.__getattribute__
_SA = object.__setattr__
@ -319,7 +319,6 @@ class TickerHandler(object):
callback (function or method): This is either a stand-alone
function or class method on a typeclassed entitye (that is,
an entity that can be saved to the database).
Returns:
ret (tuple): This is a tuple of the form `(obj, path, callfunc)`,
where `obj` is the database object the callback is defined on
@ -327,6 +326,8 @@ class TickerHandler(object):
the python-path to the stand-alone function (`None` if a method).
The `callfunc` is either the name of the method to call or the
callable function object itself.
Raises:
TypeError: If the callback is of an unsupported type.
"""
outobj, outpath, outcallfunc = None, None, None
@ -337,8 +338,15 @@ class TickerHandler(object):
elif inspect.isfunction(callback):
outpath = "%s.%s" % (callback.__module__, callback.__name__)
outcallfunc = callback
else:
raise TypeError(f"{callback} is not a method or function.")
else:
raise TypeError("%s is not a callable function or method." % callback)
raise TypeError(f"{callback} is not a callable function or method.")
if outobj and not inherits_from(outobj, "evennia.typeclasses.models.TypedObject"):
raise TypeError(f"{callback} is a method on a normal object - it must "
"be either a method on a typeclass, or a stand-alone function.")
return outobj, outpath, outcallfunc
def _store_key(self, obj, path, interval, callfunc, idstring="", persistent=True):
@ -504,12 +512,6 @@ class TickerHandler(object):
when wanting to modify/remove the ticker later.
"""
if isinstance(callback, int):
raise RuntimeError(
"TICKER_HANDLER.add has changed: "
"the interval is now the first argument, callback the second."
)
obj, path, callfunc = self._get_callback(callback)
store_key = self._store_key(obj, path, interval, callfunc, idstring, persistent)
kwargs["_obj"] = obj