We have a single usage of the `bech32` crate inside the `blockdata`
module, to convert a `WitnessVersion` to a `Fe32`. We then have a single
call site where we use the conversion in the `address` module.
This code was written without thinking to hard about the introduced
dependency on `bech32`, in hindsite it shouldn't have been added.
In preparation for splitting a bunch of code in `blockdata` out into the
`primitives` crate remove the `bech32` stuff from the `witness_version`
module.
433fd6bf7e api: Run just check-api (Tobin C. Harding)
8fd583b069 Pass hash types by value (Tobin C. Harding)
Pull request description:
We should pass `Copy` types by value not by reference. Pass the hash types by value.
Second step in the pass-copy-types-by-value work, pulled out of #2404.
ACKs for top commit:
apoelstra:
ACK 433fd6bf7e
Kixunil:
ACK 433fd6bf7e
Tree-SHA512: 999d12f60550cacc4ae19b4cbf505b25c1eed803820f22b1a706e9f95da1b7e7b422f393f4115d579927c0c476cd504036a39b3cdc06a1d6befbcff5513f7433
the `blockdata` directory is code organisation thing, all the
types/modules are re-exported from other places. In preparation for, and
to make easier, the `primitives` crate smashing work - remove all
explicit usage of `blockdata`.
Note that the few instances remain as they seem required e.g.,
`pub(in crate::blockdata::script)`
Refactor only, no logic changes.
There are two limits that the Bitcoin network enforces in regard to
hashing scripts
- For P2SH the redeem script must be less than 520 bytes
- For P2WSH the witness script must be less than 10,000 bytes
Currently we are only enforcing the p2sh limit when creating an address
with `Address::p2sh`.
There are various ways to create addresses from script hashes and if
users manually hash a script then use the `ScriptHash` (or
`WScritpHash`) our APIs assume the script that was hashed is valid. This
means there is the potential for users to get burned by creating
addresses that cannot be spent, something we would like to avoid.
- Add fallible constructors to `ScriptHash` and `WScriptHash`
- Add `TryFrom` impls as well to both types
- Remove the `From` impls
9f01871c11 api: Run just check-api (Tobin C. Harding)
7929b51640 Pass keys by value (Tobin C. Harding)
Pull request description:
We should pass `Copy` types by value not by reference. Pass the key types by value.
This is patch 1 from #2404
ACKs for top commit:
apoelstra:
ACK 9f01871c11 this will annoy some people but I think we should do it
Tree-SHA512: 18afab537edf4ade4dc1c1e5992e50060b8935531f1e3cbe1d3b94b2fcb87aafa39947f342e0e762835bda3b4091dd35b3b74ea79f4dbb3b21660ffd21d1f82e
Currently we have a trait `Hash` that is required for `Hmac`, `Hkdf`,
and other use cases. However, it is unegonomic for users who just want
to do a simple hash to have to import the trait.
Add inherent functions to all hash types including those created with
the new wrapper type macros.
This patch introduces some duplicate code but we are trying to make
progress in the hashes API re-write. We can come back and de-dublicate
later.
Includes making `to_byte_array`,`from_byte_array`, `as_byte_array`, and
`all_zeros` const where easily possible.
1282b7f34b examples: drop a couple allocations (Andrew Poelstra)
45e0241267 doc: fix "lazy line continuations" in markdown (Andrew Poelstra)
Pull request description:
Rust nightly as of 2024-05-27 has a new lint which detects list items which are continued by a non-indented line. Markdown treats these as single list items, which they sometimes are, but sometimes we intended them to be on a separate line.
Also changes the docs for `UntweakedKeypair::tap_tweak` because the existing ones were overly technical and out-of-date.
Also fixes a minor "no need to create a vec then dereference it" lint in the examples.
ACKs for top commit:
storopoli:
ACK 1282b7f34b
tcharding:
ACK 1282b7f34b
Tree-SHA512: 989c83b6bbbfbf8ddd2ade63b5f590f76810f4ec56fab432b580a40e3cc1468a0ea657dcc7ad0d4a31d49eb1390219616fec5a76b5680d5fddc3a06d81db30d7
b5ef7db3c0 api: Run just check-api (Tobin C. Harding)
1b40550ce8 Add an AddressData type (Tobin C. Harding)
Pull request description:
In the 0.32.0 release we removed the `address::Payload` struct because it was deemed an implementation detail. As a byproduct of doing so we made it impossible for users to match on an enum and get the address payload (or data).
- Add a public `AddressData` enum that holds an address' encoded data.
- Add a conversion function to `Address` that returns the data enum.
This patch is additive and is expected to be backported and release as a `0.32` point release.
ACKs for top commit:
apoelstra:
ACK b5ef7db3c0 I still feel a little partial to calling the struct "DecodedAddress" and the method "decode"...but this is good, and I do not want to bikeshed
Tree-SHA512: d97836bb2d7fc0f6e9fbba2afb30eeefefc88e7105d4765a146dd444c8397dd4d1ef4fd3e3eb925589294d46bfc8a66d33797a05dbc2131923534364424c135c
Rust nightly as of 2024-05-27 has a new lint which detects list items
which are continued by a non-indented line. Markdown treats these as
single list items, which they sometimes are, but sometimes we intended
them to be on a separate line.
Also changes the docs for `UntweakedKeypair::tap_tweak` because the
existing ones were overly technical and out-of-date.
In the 0.32.0 release we removed the `address::Payload` struct because
it was deemed an implementation detail. As a byproduct of doing so we
made it impossible for users to match on an enum and get the address
payload (or data).
- Add a public `AddressData` enum that holds an address' encoded data.
- Add a conversion function to `Address` that returns the data enum.
This patch is additive and is expected to be backported and release as a
`0.32` point release.
3615410d21 api: Run just check-api (Tobin C. Harding)
a3d2d1a184 Make Address:p2sh_from_hash public (Tobin C. Harding)
Pull request description:
We previously made this function Private and added a comment that doing so was somehow better to remove the footgun of hashing the wrong length script. However in hindsight this was a bad idea and users want the functionality.
Make the `Address:p2sh_from_hash` public and document it as we do for `Address::p2sh`.
This is an additive change and is expected to be backported to `v0.32`, as part of the fix to #2784. Please note it introduces the footgun that is described in the function rustdoc. This will be improved as a separate patch and added to the current release.
ACKs for top commit:
apoelstra:
ACK 3615410d21
Tree-SHA512: 535bb7894eeef8ecb5afb7bf6e5c483cd42c6a4282d1c116e5bf86cd1364a8327bbec1efb8634a578f07ad2832c1e5daf7fe7e844574b88b1ad355a443627bef
We previously made this function Private and added a comment that doing
so was somehow better to remove the footgun of hashing the wrong length
script. However in hindsight this was a bad idea and users want the
functionality.
Make the `Address:p2sh_from_hash` public and document it as we do for
`Address::p2sh`.
As part of the ongoing effort to improve `hashes`; stop using slicing of
hash types and use `as_byte_array()` to get an array reference instead.
This gives us more flexability to modify the `hashes` module.
A release or so ago we added `non_exhaustive` to the `Network` enum,
this turned out to make usage of the enum un-ergonomic for downstream
users. After much debate we decided that a way forward was to just
minimize the usage of the enum in the public API by instead use
`AsRef<Params>` so that downstream could define their own network enum
based on the networks they support.
Minimize usage of `Network` by using `AsRef<Params>` as a parameter type
instead. "minimize" because the `Network` still appears in some places.
`require_network` is typically called as part of parsing, often in the
same line of code. Counter to our normal errors, it makes
`require_network` more ergonomic to use if we just return a `ParseError`
variant.
Close: #2507
We are currently using the `base58::Error` type to create errors in
`bitcoin`, these are bitcoin errors not `base58` errors.
Note that we add what looks like duplicate
`InvalidBase58PayloadLengthError` types but they are different because
of the expected length. This could have been a field but I elected not
to do so for two reasons:
1. We will need to do so anyways if we crate smash more
2. The `crypto::key` one can have one of two values 33 or 34.
With this applied we can remove the now unused error variants from
`base58::Error`.
The `address` module is currently publicly re-exporting all error types
that appear as return values for any pubic function, except for the
`P2shError` - we should be uniform.
This re-export of error thing has not been discussed/agreed upon as a
policy but I have been doing it for the last few months anytime I
introduced an `error` module - there has been no push back so I assumed
it was acceptable. Before 1.0 we should probably have a policy on this.
7e2a81d03b Remove unused address::Error type (Tobin C. Harding)
a92dc9c35c Add NetworkValidationError (Tobin C. Harding)
Pull request description:
Replaces #2502 because there is going to be way too much arguing on this to bother a newer contributor with.
This PR takes into consideration #2507 but does not improve the issue, it also does not make it worse. I propose to do this and then consider #2507 since this is a step forwards IMO.
Remove the `address::Error` because its not good. Add a `NetworkValidationError` and return it from `require_network` - leaving the door open for resolving Kix's issue in 2507.
ACKs for top commit:
Kixunil:
ACK 7e2a81d03b
apoelstra:
ACK 7e2a81d03b
Tree-SHA512: 0a220dbec1457f35e3d95f32399f258e65c0477e8b4d14dbe2dfad0a44966ab0339d4c2d9828da318bf131db45cecb2447c0e32d5669a5f4c4739b90c83d3c0d
9d688396c9 base58: Use pub extern crate instead of module (Tobin C. Harding)
Pull request description:
We don't add any implementations to the `base58` types so we can just `pub extern` the crate instead of using a module and re-exporting.
ACKs for top commit:
Kixunil:
ACK 9d688396c9
apoelstra:
ACK 9d688396c9
Tree-SHA512: 521af0fd1ae365a6d060dd3c38fc18c1fb3a6c46adb7cba64e53128c7a898c766bcc603078b4cb8a3672df96559633495b23203a33147b5b4959b0c690ab7451
This commit adds the `FromScriptError` struct to handle the errors
while generating address from any script. It includes :
- Unrecognized script error.
- Witness Program error.
- Witness Version error.
We have a bunch of functions that take `Network` when what they really
want is something that can be converted to a `KnownHrp`.
Make `KnownHrp` public and accept `impl Into<KnownHrp>`.
03bfe1d433 Impove rustdoc on assume_checked_ref (Tobin C. Harding)
769809f1f2 Improve the docs on as_unchecked function (Tobin C. Harding)
Pull request description:
In #1765 we added a couple of new functions.
- Patch 1: Fix mis-documented function.
- Patch 2: Do trivial rustdocs fix.
ACKs for top commit:
apoelstra:
ACK 03bfe1d433
Kixunil:
ACK 03bfe1d433
Tree-SHA512: 5be6b2d288c1f4e9096014acd8618dc84a3ec6f45ae38b5d44ef7f95eccc268021bc8e8435152166606d893d4238b03e59e8f9d4fc67ba9a6c33194f3f54fc40
The `as_unchecked` method is never dangerous to call because an
`Address<UncheckedNetwork>` provides a subset of functionality that is
always ok to use. It is only dangerous to go the other way unchecked to
checked.
P2WPKH requires keys to be compressed which introduces error handling
even in cases when it's statically known that a key is compressed. To
avoid it, this change introduces `CompressedPublicKey` which is similar
to `PublicKey` except it's statically known to be compressed.
This also changes relevant code to use `CompressedPublicKey` instead of
`PublicKey`.
An `AddressInner` struct is created when parsing address strings however
address strings do not map 1:1 to `Network` because signet and testnet
use the same bech32 prefix "tb".
We can fix this by inlining the `Payload` variants into `AddressInner`
and adding prefix enums for legacy addresses and a `KnownHrp` for bech32
addresses.
Also enables removing the `AddressEncoding` struct as we can display the
`AddressInner` struct directly. (The `Display` impl is on `AddressInner`
and not directly on address to ignore the `NetworkValidation` wrapper,
may be able to be simplified still further.)
Calling `wpubkey_hash` on a key that is uncompressed is flat out an
error, really it is a programmer error at build time because a segwit
key should never be compressed, however, for historical reasons we do
not enforce this in the type system. As a step towards clarity make it
an error to call `wpubkey_hash` on a an uncompressed pubkey. This adds
documentation and potentially might assist debugging for newer devs.
7d695f6b41 Improve public re-exports (Tobin C. Harding)
33774122e0 Remove public re-exports from private module (Tobin C. Harding)
Pull request description:
Improve the public exports in two ways:
1. Inline re-exports into the docs of the module that re-exports them.
2. Separate public and private use statements
Recently we discussed a way to separate the public and private import statements to make the code more clear and prevent `rustfmt` joining them all together.
Separate public exports using a code block and `#[rustfmt::skip]`. Has the nice advantage of reducing the number of `#[doc(inline)]` attributes also.
1. Modules first, as they are part of the project's structure.
2. Private imports
3. Public re-exports (using `rustfmt::skip` to prevent merge)
Use the format
```rust
mod xyz;
mod abc;
use ...;
pub use {
...,
};
```
This patch introduces changes to the rendered HTML docs.
ACKs for top commit:
apoelstra:
ACK 7d695f6b41
Tree-SHA512: dc9121c0fe282e3035d862beadb89e2d5a374a7dab6b1c3147a9b5960f8bc2f5af49892f0f713f55c645c46f53464c32daf390c11d85c75553b3ea7e0efc8246
Currently we have functions on `Address` that call through to a public
`Payload` type. The `Payload` type is an implementation detail and
should never have been public. In preparation for modifying the
`AddressInner` and removing `Payload` altogether lets move all the
functionality from `Payload` into `Address` - this is basically just
code moves so it is feasible to review with some confidence.
This is an API breaking change because it makes `Payload` private and
also removes from the pubic `Address` API functions that accept and
return `Payload`. Apart from that the changes can be seen as
refactoring.
The `AddressEncoding` type exists solely to assist us in implementing
`Display` on `Address`, it may have been used in the past by alt-coins
back when we had a more tolerant outlook on supporting them. Nowadays
we explicitly do not support alts.
Tobin C. Harding
Jamil Lambert
Andrew Poelstra
Fmt Bot
harshit933
conduition
Martin Habovstiak