functions. Changed some ">= 2.1" stix version semantics to be
"== 2.1", because we don't have any version >= 2.1, so they are
currently equivalent, and the is_*() functions don't support
STIX version ranges. They only support exact versions. We can
look at this again if a newer STIX version ever emerges.
Also added a class_for_type() function to the registry module,
which was useful for the versioning module changes described
above. I thought that function would be helpful in the parsing
module, to simplify code there, so I changed that module a bit
to use it.
dict/mapping values: do a simple verification of the value's
STIX version, not just its type. Added a lot more unit tests to
test behavior on dicts. To make the implementation work, I had
to move the detect_spec_version() function out of the parsing
module and into utils. So that required small changes at all
its previous call sites.
level with STIX versions in the same format as is used everywhere
else in the API: "X.Y", as opposed to the "vXY" format used by
the version-specific python packages. This eliminates all of
the awkward conversion from public API format to "vXX" format.
Also a little bit of code rearranging in the registration module
to ensure that some STIX 2.1-specific checks are done whether
version 2.1 is given explicitly or is defaulted to.
In the same module I also added a missing import of
stix2.properties, since my IDE was claiming it could not find a
function from that module.
- stix2.registry, which contains the class mapping structure
and code for scanning stix2 modules for its initial population
- stix2.registration, which contains code used to register custom
STIX types with the registry
- stix2.parsing, which contains code for creating instances of
registered stix2 classes from raw dicts.
This is intended to reduce circular import problems, by giving
dependent code the ability to import a module which has exactly
the functionality it needs, without pulling a lot of other stuff
it doesn't need. Fewer imports means less chance of an import
cycle.
Made them consistent with _register_observable_extension, by:
- moving validation logic there from _custom_*_builder functions
- using a new function for ensuring properties are dict-like
- using the library default spec version instead of None
Fix#371, fix#372, fix#373.
TypeProperty uses a fixed value, so check() was never called. This way
also runs the check at object registration time because the wrapper
creates an instance of TypeProperty and doesn't have to wait for the
object to be instantiated so clean() can be called.
Also fix some tests.
Christian Studer