92749d29e4 Rename PartiallySignedTransaction to Psbt (Tobin C. Harding)
Pull request description:
Last release we added a type alias for `Psbt`, now lets just rename the type and be done with it.
Includes re-export at the crate root because `bitcoin::Psbt` is clear and obvious.
ACKs for top commit:
sanket1729:
ACK 92749d29e4.
apoelstra:
ACK 92749d29e4
Tree-SHA512: 2ded728409829709a46acd2a83ce9a91839bce222264b2fca122b346ec4f45a52c3f970eb05001794e2f355ce9391df1a184b57baf24589e8a5c3f77f72f6ec7
Last release we added a type alias for `Psbt`, now lets just rename the
type and be done with it.
Includes re-export at the crate root because `bitcoin::Psbt` is clear
and obvious.
From BIP 141:
> A scriptPubKey (or redeemScript as defined in BIP16/P2SH) that
> consists of a 1-byte push opcode (for 0 to 16) followed by a data push
> between 2 and 40 bytes gets a new special meaning. The value of the
> first push is called the "version byte". The following byte vector
> pushed is called the "witness program".
`WitnessVersion` and `WitnessProgram` are scriptPubkey concerns and
scriptPubkey is basically synonymous with address so in one way it makes
sense that these types are in `address` however we are in the process of
overhauling the `Address` (and `AddressInner`) types so lets move the
witness stuff to `script` and put it in individual sub-modules.
This move helps simplify the address error type also.
Note please, there are a bunch of formatting changes in here in the
error type that I cannot explain and could not remove.
This error type is only used in the `from_slice` function. Use prefix
`Sig` because `taproot::FromSliceError` does not fully express how the
error came about.
Use specific identifier for the error, this aids usage but also prevents
us later adding "random" other variants into this error and using it in
other functions.
We are trying to make error types stable on the way to v1.0
The current `hashes::Error` is a "general" enum error type with a single
variant, better to use a struct and make the error usecase specific.
Improve the `hashes::Error` by doing:
- Make it a struct
- Rename to `FromSliceError`
- Move it to the crate root (remove `error` module)
Includes usage in `bitcoin`.
No idea why this re-export is here, the `Prevouts` type is not even used
in the `psbt` module.
Remove the re-export of `crate::sighash::Prevouts` from `pstb`.
We currently use the functions `min_value` and `max_value` because the
consts were not available in Rust 1.41.1, however we recently bumped the
MSRV so we can use the consts now.
fabcde036f Use package in manifest and shorten import (Tobin C. Harding)
Pull request description:
We can use `package` to rename `bitcoin_hashes` to `hashes` and `bitcoin_internals` to `internals`. This makes imports more terse with no loss of meaning.
ACKs for top commit:
apoelstra:
ACK fabcde036f
Kixunil:
ACK fabcde036f
Tree-SHA512: bc5bff6f7f6bf3b68ba1e0644a83da014081d8c6c9d578c21cb54fdd56a018f68733dd1135d05b590ba193ed9efd12fa9019182c1fed347e604d8548f6ef9103
If we use `#![cfg_attr(docsrs, feature(doc_auto_cfg))]` instead of
`#![cfg_attr(docsrs, feature(doc_cfg))]` we no longer need to manually
mark types with `#[cfg_attr(docsrs, doc(cfg(feature = "std")))]`.
Sweeeeeet.
We can use `package` to rename `bitcoin_hashes` to `hashes` and
`bitcoin_internals` to `internals`. This makes imports more terse with
no loss of meaning.
Cleanly separate `TapTree` and `NodeInfo`. Fix serde not respecting
invariants for several data structures
Repurpose some tests from removed taproot builder for taptree
Currently we have an associated type on hash types `Inner` with
accompanying methods `into_inner`, `from_inner`, `as_inner`. Also, we
provide a way to create new wrapped hash types. The use of 'inner'
becomes ambiguous with the addition of wrapped types because the inner
could be the inner hash type or the `Inner` byte array of the inner
wrapped hash type.
In an effort to make the API more clear and uniform do the following:
- Rename `Inner` -> `Bytes`
- Rename `*_inner` -> `*_byte_array`
- Rename the inner hash to/from methods to `*_raw_hash`
Correct method prefix `into_` -> `to_` because theses methods convert
owned `Copy` types.
Add the trait Bound `Copy` to the `Bytes` type because we rely on this
trait bound for the conversion methods to be correctly named according
to convention.
Because of the dependency hole created by `secp256k1` this patch changes
the secp dependency to a git tag dependency that includes changes to the
hashes calls required so that we can get green lights on CI in this
repo.
"schnorr" is a dirty word; the current `schnorr` module defines a
`Signature` that includes a sighash type, this sighash type is a bitcoin
specific construct related to taproot. Therefore the `Signature` is
better named `taproot::Signature`. Note also that the usage of `schnorr`
in `secp256k1` is probably justified because the
`secp256::schnorr::Signature` is just doing the crypto.
While we are at it, update docs and error messages to use "taproot"
instead of "schnorr". Also change function names and identifiers that
use "schnorr".
Currently we have `TapSighash` that is used for taproot sighashes but
for non-taproot sighashes we use `hash_types::Sighash`. We can improve
the API by creating a `LegacySighash`, and `SegwitV0Sighash`.
Copy the original `Sighash` macro calls to create the two new types in
the `sighash` module.
While we are at it, put the `TapSighash` and `TapSighashTag` into the
`sighash` module also.
a121e19e94 hashes: Implement AsRef for fixed size arrays (Tobin C. Harding)
Pull request description:
Implement `AsRef<[u8; X]>` for hash types including wrapped hash types. Doing so means at times the compiler can no longer infer the type because we have `AsRef<[u8]` implemented also but we can use `into_inner` and `as_inner` to get the inner array if needed.
Fix: #1462
## Note
This touches code that will likely be changed by #1577 and when we do #1491 but I believe its a step forward.
ACKs for top commit:
arturomf94:
ACK [`a121e19`](a121e19e94)
apoelstra:
ACK a121e19e94
Kixunil:
ACK a121e19e94
Tree-SHA512: 257c44826c7649db25bb3a6f023f68b2f17b70c546a056afad044bc8a16bf61f654c3846222505aaf5e6f9a0ad1d2113272d61317b407d0ac83702e41060a1ee
4a03e2e721 psbt: Remove unused error variant (Tobin C. Harding)
Pull request description:
Remove an unused error variant for PSBT code (API breaking because the error type is public).
Woops, somehow I managed to get what was patch 1 of this series merged yesterday, I thought I left it out. Anyways, this is just the remove unused error variant now. No changes to that patch from previous versions of the PR.
ACKs for top commit:
apoelstra:
ACK 4a03e2e721
Kixunil:
ACK 4a03e2e721
Tree-SHA512: 228c661b97c6656db5a2bcc9ceb494ea485363b7f7262a97c677ee1639b5209c92ec3715ff48fdb108c95c828bfc83b6c475aa66f0ce8c5b0f286bfa7cc19554
32d2d62e0f Rename from_slice methods to decode (Tobin C. Harding)
Pull request description:
The `TaprootMerkleBranch` and `ControlBlock` both have methods on them called `from_slice` but these methods do more that just basic copy from a slice. `decode` is a more descriptive name.
Deprecate the `from_slice` methods and implement `decode`, on other changes to the logic.
cc sanket1729
ACKs for top commit:
apoelstra:
ACK 32d2d62e0f
Kixunil:
ACK 32d2d62e0f
Tree-SHA512: e8c089545411a214ef9393f65d3990be46983000bd045182cc27dd70b62273bf48ac97adaf89d1e7fc807c72964a01eef176c7685684e8f87a01c219746d6d3d
The `TaprootMerkleBranch` and `ControlBlock` both have methods on them
called `from_slice` but these methods do more that just basic copy from
a slice. `decode` is a more descriptive name.
Deprecate the `from_slice` methods and implement `decode`, on other
changes to the logic.
The requirement for a type dereferencing to `Transaction` prevented
storing the cache in long-lived data without resorting to silly
wrappers. Since `Borrow` is implemented both for `T` and for smart
pointers it's a more flexible bound which this change implements.
While this is technically breaking, all usual non-generic code will
continue to work beause smart pointers generally have `Borrow`
implemented.
`Sighash` should be displayed forwards according to BIP143. Currently we
are displaying it backwards (as we do for double SHA256). This is
working because parse using `Vec::from_hex`.
We have the means to parse hex strings directly for hashes, we no longer
need `hex_from_slice`.
BIP143 test vectors display double SHA256 forwards but we display
backwards, this is acceptable because there is no fixed display in the
ecosystem for double SHA256 hashes. In order to overcome this we parse
test vector hex strings with into `Vec` when needed.
Remove `FromHex` from hash and script types
- Remove the `FromHex` implementation from hash types and `ScriptBuf`
- Remove the `FromStr` implementation from `ScriptBuf` because it does not
roundtrip with `Display`.
- Implement a method `from_hex` on `ScriptBuf`.
- Implement `FromStr` on hash types using a fixed size array.
This leaves `FromHex` implementations only on `Vec` and fixed size arrays.
In preparation for modifying some unit test data structures, manually
format the code so it is uniform.
Move elements added to a vec with `vec!` onto a new line so they all
line up and one can better see what fields go where.
Refactor only, no logic changes.
Implement `AsRef<[u8; X]>` for hash types including wrapped hash types.
Doing so means at times the compiler can no longer infer the type because we have
`AsRef<[u8]` implemented also but we can use `into_inner` and `as_inner`
to get the inner array if needed.
e7bbfd3913 Improve Psbt error handling (DanGould)
Pull request description:
## Separate `encode::Error` and `psbt::Error` recursive dependency
This initial work attempts to fix#837's first 2 points
> - The current psbt::serialize::Deserialize has an error type of consensus::encode::Error. I think we should cleanly separate consensus encoding errors from application-level encoding errors like psbt.
> - There is a recursive dependence between encode::Error and psbt::Error which would need to be cleanly dissected and separated so that there is no dependence or only one-way dependence.
## Better `ParseError(String)` types
arturomf94 how compatible do your #1310 changes look to address #837's third point with this design?
> - There are a lot ParseError(String) messages that could use a better type to downflow the information.
I think your prior art would completely address this issue now.
## On handling `io::Error` with an associated error
`encode::Error` has an `Io` variant. now that `Psbt::deserialize` returns `psbt::Error` and produces an `io::Error`, we need an `Io` variant on `psbt::Error`. Except that doing so breaks `#[derive(Eq)]` and lots of tests for `psbt::Error`.
Kixunil, I'm trying to understand your feedback regarding a solution to this problem.
> I believe that the best error untangling would be to make decodable error associated.
> I meant having associated `Error` type at `Decodable` trait. Encoding should only fail if the writer fails so we should have `io::Error` there (at least until we have something like `genio`).
>
> > [it] is a problem to instantiate consensus::encode::Error in [the psbt] module for `io::Error`?
>
> It certainly does look strange. Maybe we should have this shared type:
>
> ```rust
> /// Error used when reading or decoding fails.
> pub enum ReadError<Io, Decode> {
> /// Reading failed
> Io(Io),
> /// Decoding failed
> Decode(Decode), // consensus and PSBT error here
> }
> ```
>
> However this one will be annoying to use with `?` :( We could have `ResultExt` to provide `decode()` and `io()` methods to make it easier.
>
> If that's not acceptable then I think deduplicated IO error is better.
Kixunil didn't we just get rid of Psbt as `Decodable`? Would this make more sense to have as an error associated with `Deserialize`? Or did we do the opposite of what we should have by making Psbt only `Serialize`/`Deserialize` because of #934, where only consensus objects are allowed to be `Decodable`? I wonder if we prioritized that strict categorization and are stuck with worth machinery because of it. My goal with #988 was to get to a point where we could address #837 and ultimately implement PSBTv2.
ACKs for top commit:
tcharding:
ACK e7bbfd3913
apoelstra:
ACK e7bbfd3913
Tree-SHA512: 32975594fde42727ea9030f46570a1403ae1a108570ab115519ebeddc28938f141e2134b04d6b29ce94817ed776c13815dea5647c463e4a13b47ba55f4e7858a
Addresses with Segwitv0 not having len 20/32 are invalid and cannot be
constructed. Also cleans up a API bug in
ScriptBuf::new_witness_prog(ver, prog) allowing prog of invalid lenghts.
70fe07f1ce Export the DisplayHex trait from within prelude (Tobin C. Harding)
Pull request description:
We use `internals::hex::display::DisplayHex` in many places, we can improve ergonomics of the `internals` crate by re-exporting it from the `prelude` module.
ACKs for top commit:
Kixunil:
ACK 70fe07f1ce
apoelstra:
ACK 70fe07f1ce
Tree-SHA512: 96a89135cb0b829b7b5926a3b344f78e178b5b48e772a69da5133fab6d2e14e7b7bbaa56b7a417a5c1a64337546a1c7bac32307d3a1f27aa199ed61f590902bf
We use `internals::hex::display::DisplayHex` in many places, we can
improve ergonomics of the `internals` crate by re-exporting it from the
`prelude` module.
The `ToHex` trait was replaced by either simple `Display`/`LowerHex`
where appropriate or `DisplayHex` from `bitcoin_internals` which is
faster.
This change replaces the usages and removes the trait.
c4363e5ba1 Deserialize Psbt fields, don't consensus_encode (DanGould)
c1dd6ad8a2 Serialize Psbt fields, don't consensus_encode them (DanGould)
1b7b08aa5d De/serialize Psbt without consensus traits (DanGould)
Pull request description:
fix https://github.com/rust-bitcoin/rust-bitcoin/issues/934
Instead of using consensus {de,en}code, serialize high-level structures (PartiallySignedTransaciton, Output, Input) borrow the signature from `Serialize`, `Deserialize` traits and implement them on Psbt:
```rs
impl Psbt {
/// Serialize a value as raw data.
fn serialize(&self) -> Vec<u8>;
/// Deserialize a value from raw data.
fn deserialize(bytes: &[u8]) -> Result<Self, encode::Error>;
}
```
ACKs for top commit:
apoelstra:
ACK c4363e5ba1
tcharding:
ACK c4363e5ba1
sanket1729:
ACK c4363e5ba1. One small comment, but can be addressed in follow up if there is nothing else from other reviewers.
Kixunil:
ACK c4363e5ba1
Tree-SHA512: d8dd5ef1189b36fde08969b1ec36006a6fc55ae990f62ea744e6669e03a7f9e90e1d5907be7eac48ee1af23bc20a62aa7e60ff1ff78080d0e923bb9ccedcd432
This makes the code less noisy and is a preparation for changing it to
`const`-based literal. Because of the preparation, places that used
variables to store the hex string were changed to constants.
There are still some instances of `Vec::from_hex` left - where they
won't be changeable to `const` and where `hex!` is unavailable
(integration tests). These may be dealt with later.
See also #1189
Tobin C. Harding
Andrew Poelstra
Steven Roose
yancy
sanket1729
Martin Habovstiak
DanGould
Arturo Marquez