mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-07 04:58:01 +00:00
Tadeo hepperle
108 lines
3.3 KiB
Rust
108 lines
3.3 KiB
Rust
// Copyright 2019-2023 Parity Technologies (UK) Ltd.
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// This file is dual-licensed as Apache-2.0 or GPL-3.0.
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// see LICENSE for license details.
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//! Miscellaneous utility helpers.
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mod account_id;
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pub mod bits;
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mod era;
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mod multi_address;
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mod multi_signature;
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mod static_type;
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mod unchecked_extrinsic;
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mod wrapper_opaque;
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use crate::error::RpcError;
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use crate::Error;
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use crate::prelude::*;
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use codec::{Compact, Decode, Encode};
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use derivative::Derivative;
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use url::Url;
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pub use account_id::AccountId32;
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pub use era::Era;
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pub use multi_address::MultiAddress;
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pub use multi_signature::MultiSignature;
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pub use static_type::Static;
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pub use unchecked_extrinsic::UncheckedExtrinsic;
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pub use wrapper_opaque::WrapperKeepOpaque;
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// Used in codegen
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#[doc(hidden)]
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pub use primitive_types::{H160, H256, H512};
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/// Wraps an already encoded byte vector, prevents being encoded as a raw byte vector as part of
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/// the transaction payload
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#[derive(Clone, Debug, Eq, PartialEq)]
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pub struct Encoded(pub Vec<u8>);
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impl codec::Encode for Encoded {
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fn encode(&self) -> Vec<u8> {
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self.0.to_owned()
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}
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}
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/// Decodes a compact encoded value from the beginning of the provided bytes,
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/// returning the value and any remaining bytes.
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pub(crate) fn strip_compact_prefix(bytes: &[u8]) -> Result<(u64, &[u8]), codec::Error> {
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let cursor = &mut &*bytes;
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let val = <Compact<u64>>::decode(cursor)?;
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Ok((val.0, *cursor))
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}
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/// A URL is considered secure if it uses a secure scheme ("https" or "wss") or is referring to localhost.
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///
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/// Returns an error if the the string could not be parsed into a URL.
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pub fn url_is_secure(url: &str) -> Result<bool, Error> {
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let url = Url::parse(url).map_err(|e| Error::Rpc(RpcError::ClientError(Box::new(e))))?;
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let secure_scheme = url.scheme() == "https" || url.scheme() == "wss";
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let is_localhost = url.host().is_some_and(|e| match e {
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url::Host::Domain(e) => e == "localhost",
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url::Host::Ipv4(e) => e.is_loopback(),
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url::Host::Ipv6(e) => e.is_loopback(),
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});
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Ok(secure_scheme || is_localhost)
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}
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/// Validates, that the given Url is secure ("https" or "wss" scheme) or is referring to localhost.
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pub fn validate_url_is_secure(url: &str) -> Result<(), Error> {
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if !url_is_secure(url)? {
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Err(Error::Rpc(crate::error::RpcError::InsecureUrl(url.into())))
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} else {
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Ok(())
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}
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}
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/// A version of [`std::marker::PhantomData`] that is also Send and Sync (which is fine
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/// because regardless of the generic param, it is always possible to Send + Sync this
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/// 0 size type).
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#[derive(Derivative, Encode, Decode, scale_info::TypeInfo)]
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#[derivative(
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Clone(bound = ""),
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PartialEq(bound = ""),
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Debug(bound = ""),
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Eq(bound = ""),
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Default(bound = ""),
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Hash(bound = "")
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)]
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#[scale_info(skip_type_params(T))]
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#[doc(hidden)]
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pub struct PhantomDataSendSync<T>(core::marker::PhantomData<T>);
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impl<T> PhantomDataSendSync<T> {
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pub(crate) fn new() -> Self {
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Self(core::marker::PhantomData)
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}
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}
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unsafe impl<T> Send for PhantomDataSendSync<T> {}
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unsafe impl<T> Sync for PhantomDataSendSync<T> {}
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/// This represents a key-value collection and is SCALE compatible
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/// with collections like BTreeMap. This has the same type params
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/// as `BTreeMap` which allows us to easily swap the two during codegen.
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pub type KeyedVec<K, V> = Vec<(K, V)>;
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