| Commit message (Collapse) | Author | Age | Files | Lines |
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This change should simplify decoder specialization by means
of parameterization in addition to subclassing.
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Make it looking more uniform and easier to override if needed.
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Try to reuse `SingleItemDecoder` object to leverage its caches.
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The goal of this change is to make the decoder stopping on input
data starvation and resuming from where it stopped whenever the
caller decides to try again (hopefully making sure that some more
input becomes available).
This change makes it possible for the decoder to operate on streams
of data (meaning that the entire DER blob might not be immediately
available on input).
On top of that, the decoder yields partially reconstructed ASN.1
object on input starvation making it possible for the caller to
inspect what has been decoded so far and possibly consume partial
ASN.1 data.
All these new feature are natively available through
`StreamingDecoder` class. Previously published API is implemented
as a thin wrapper on top of that ensuring backward compatibility.
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Rewrite Decoder in terms of BytesIO
BER Decoders implemented with BytesIO but for the most complex
BER UniversalConstructedTypeDecoder in terms of BytesIO
BER Decoder (stream-based) suggestion
Fixed some of the failing tests
Fixed several failed tests
Fix all remaining tests but the non-implemented Any
Implement untagged Any with back-seek
Fix cer and der to work with streams
Simplify unnecessary added complexity
Make use of IOBase hierarchy (properly?) - in progress
Tests failing
Fixed most failing tests
1 remaining
Severaů small optimizations
Fix logging
Note: As we do not want to read the whole stream, explicit output of remaining bytes is not used.
Rename and document utility functions for BER decoder
Fixed ínverted condition in BitStringDecoder.valueDecoder
Fixed wrongly acquired fullPosition in AnyDecoder.indefLenValueDecoder
Fixed logging None length
endOfStream(BytesIO) working in 2.7
Microoptimizations for endOfStream (not using it)
Test for checking binary files as substrate
Python 2.7 BytesIO wrapper for `file`s
Refactor keep API compatibility with original version
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Added `isInconsistent` property to all constructed types. This property
conceptually replaces `verifySizeSpec` method to serve a more general
purpose e.g. ensuring all required fields are in a good shape. By
default this check invokes subtype constraints verification and is run
by codecs on value de/serialisation.
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Also fix references to exception objects in other docstrings.
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Prior to this fix, recursively encoded open types won't get
fully decoded all the way.
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For example:
AttributeTypeAndValues ::= SEQUENCE {
type OBJECT IDENTIFIER,
values SET OF ANY DEFINED BY type
}
This patch adds support of the above ASN.1 syntax to BER/DER/CER
codecs.
It appears that to implement this feature properly, `SetOf`/`SequenceOf`
pyasn1 types need to have `.componentType` wrapped into something
similar to `NamedType` that `Set`/`Sequence` have. That additional
layer would then carry the open type meta information. Without it,
`Sequence`/`Set` codec needs to signal `SetOf`/`SequenceOf` codec
of the open type being processed, which is a slight hack.
A other inconvenience is that when `SetOf`/`SequenceOf` deal with
an open type component, they should not verify types on component
assignment. Without open type property in `SetOf`/`SequenceOf`,
the code checks for `Any` component type which is another hack.
The above shortcomings should be addressed in the follow up patch.
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Fixes `AnyDecoder` to accept `TagMap` as `asn1Spec`.
The use-case is to make `AnyDecoder` operational when
dumping raw value on error condition is enabled
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* Add `omitEmptyOptionals` encoder option
Added `omitEmptyOptionals` option which is respected by `Sequence`
and `Set` encoders. When `omitEmptyOptionals` is set to `True`, empty
initialized optional components are not encoded. Default is `False`.
* Change `SequenceOf`/`SetOf` behaviour
- New elements to `SequenceOf`/`SetOf` objects can now be added at any
position - the requirement for the new elements to reside at the end
of the existing ones (i.e. s[len(s)] = 123) is removed.
- Removed default initializer from `SequenceOf`/`SetOf` types to ensure
consistent behaviour with the rest of ASN.1 types. Before this change,
`SequenceOf`/`SetOf` instances immediately become value objects
behaving like an empty list. With this change, `SequenceOf`/`SetOf`
objects remain schema objects unless a component is added or
`.clear()` is called.
- Added `.reset()` method to all constructed types to turn value object
into a schema object.
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Also extend copyright to the year 2019
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More debug logging added to BER family of codecs to
ease encoding problems troubleshooting.
Also:
* code layout made a bit more sparse
* potential bug in open type decoding in indefinite mode
fixed
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Debug logging refactored for more efficiency when
disabled and for more functionality when in use.
Specifically, the global LOG object can easily be used
from any function/method, not just from codec main loop
as it used to be.
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* __str__() of ASN.1 types reworked to serve instead of .prettyPrint()
Related changes: `str()` on enumerations and boolean will return
a string label rather than a number.
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* minor fixes to RsT docstrings
* more explanations in the docs, better linkage
* cosmetic fixes to NamedValues() docstring
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* rearranged `.clone()` and `.subtype()` docstrings
* legacy Asn1ItemBase.prettyPrinter() method removed
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* `None` legacy initializer support removed
* Default value for `Null` removed
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ASN.1 encoders can operate on pure-Python types
Also, BitString decoder performance improvement
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Also fixed a couple of crashes in debug messages
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