mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-27 01:07:57 +00:00
André Silva
166 lines
6.6 KiB
Rust
166 lines
6.6 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Polkadot is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
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//! Polkadot-specific GRANDPA integration utilities.
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use sp_runtime::traits::{Block as BlockT, Header as _, NumberFor};
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use crate::HeaderProvider;
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#[cfg(feature = "full-node")]
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use polkadot_primitives::{Block, Hash};
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/// Returns the block hash of the block at the given `target_number` by walking
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/// backwards from the given `current_header`.
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pub(super) fn walk_backwards_to_target_block<Block, HP>(
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backend: &HP,
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target_number: NumberFor<Block>,
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current_header: &Block::Header,
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) -> Result<(Block::Hash, NumberFor<Block>), sp_blockchain::Error>
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where
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Block: BlockT,
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HP: HeaderProvider<Block>,
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{
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let mut target_hash = current_header.hash();
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let mut target_header = current_header.clone();
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loop {
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if *target_header.number() < target_number {
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unreachable!(
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"we are traversing backwards from a known block; \
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blocks are stored contiguously; \
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qed"
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);
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}
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if *target_header.number() == target_number {
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return Ok((target_hash, target_number))
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}
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target_hash = *target_header.parent_hash();
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target_header = backend
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.header(target_hash)?
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.expect("Header known to exist due to the existence of one of its descendants; qed");
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}
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}
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/// GRANDPA hard forks due to borked migration of session keys after a runtime
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/// upgrade (at #1491596), the signaled authority set changes were invalid
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/// (blank keys) and were impossible to finalize. The authorities for these
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/// intermediary pending changes are replaced with a static list comprised of
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/// w3f validators and randomly selected validators from the latest session (at
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/// #1500988).
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#[cfg(feature = "full-node")]
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pub(crate) fn kusama_hard_forks() -> Vec<grandpa::AuthoritySetHardFork<Block>> {
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use sp_core::crypto::Ss58Codec;
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use std::str::FromStr;
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let forks = vec![
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(623, "01e94e1e7e9cf07b3b0bf4e1717fce7448e5563901c2ef2e3b8e9ecaeba088b1", 1492283),
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(624, "ddc4323c5e8966844dfaa87e0c2f74ef6b43115f17bf8e4ff38845a62d02b9a9", 1492436),
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(625, "38ba115b296663e424e32d7b1655cd795719cef4fd7d579271a6d01086cf1628", 1492586),
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(626, "f3172b6b8497c10fc772f5dada4eeb1f4c4919c97de9de2e1a439444d5a057ff", 1492955),
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(627, "b26526aea299e9d24af29fdacd5cf4751a663d24894e3d0a37833aa14c58424a", 1493338),
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(628, "3980d024327d53b8d01ef0d198a052cd058dd579508d8ed6283fe3614e0a3694", 1493913),
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(629, "31f22997a786c25ee677786373368cae6fd501fd1bc4b212b8e267235c88179d", 1495083),
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(630, "1c65eb250cf54b466c64f1a4003d1415a7ee275e49615450c0e0525179857eef", 1497404),
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(631, "9e44116467cc9d7e224e36487bf2cf571698cae16b25f54a7430f1278331fdd8", 1498598),
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];
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let authorities = vec![
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"CwjLJ1zPWK5Ao9WChAFp7rWGEgN3AyXXjTRPrqgm5WwBpoS",
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"Dp8FHpZTzvoKXztkfrUAkF6xNf6sjVU5ZLZ29NEGUazouou",
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"DtK7YfkhNWU6wEPF1dShsFdhtosVAuJPLkoGhKhG1r5LjKq",
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"FLnHYBuoyThzqJ45tdb8P6yMLdocM7ir27Pg1AnpYoygm1K",
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"FWEfJ5UMghr52UopgYjawAg6hQg3ztbQek75pfeRtLVi8pB",
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"ECoLHAu7HKWGTB9od82HAtequYj6hvNHigkGSB9g3ApxAwB",
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"GL1Tg3Uppo8GYL9NjKj4dWKcS6tW98REop9G5hpu7HgFwTa",
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"ExnjU5LZMktrgtQBE3An6FsQfvaKG1ukxPqwhJydgdgarmY",
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"CagLpgCBu5qJqYF2tpFX6BnU4yHvMGSjc7r3Ed1jY3tMbQt",
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"DsrtmMsD4ijh3n4uodxPoiW9NZ7v7no5wVvPVj8fL1dfrWB",
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"HQB4EctrVR68ozZDyBiRJzLRAEGh1YKgCkAsFjJcegL9RQA",
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"H2YTYbXTFkDY1cGnv164ecnDT3hsD2bQXtyiDbcQuXcQZUV",
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"H5WL8jXmbkCoEcLfvqJkbLUeGrDFsJiMXkhhRWn3joct1tE",
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"DpB37GDrJDYcmg2df2eqsrPKMay1u8hyZ6sQi2FuUiUeNLu",
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"FR8yjKRA9MTjvFGK8kfzrdC23Fr6xd7rfBvZXSjAsmuxURE",
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"DxHPty3B9fpj3duu6Gc6gCSCAvsydJHJEY5G3oVYT8S5BYJ",
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"DbVKC8ZJjevrhqSnZyJMMvmPL7oPPL4ed1roxawYnHVgyin",
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"DVJV81kab2J6oTyRJ9T3NCwW2DSrysbWCssvMcE6cwZHnAd",
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"Fg4rDAyzoVzf39Zo8JFPo4W314ntNWNwm3shr4xKe8M1fJg",
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"GUaNcnAruMVxHGTs7gGpSUpigRJboQYQBBQyPohkFcP6NMH",
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"J4BMGF4W9yWiJz4pkhQW73X6QMGpKUzmPppVnqzBCqw5dQq",
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"E1cR61L1tdDEop4WdWVqcq1H1x6VqsDpSHvFyUeC41uruVJ",
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"GoWLzBsj1f23YtdDpyntnvN1LwXKhF5TEeZvBeTVxofgWGR",
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"CwHwmbogSwtRbrkajVBNubPvWmHBGU4bhMido54M9CjuKZD",
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"FLT63y9oVXJnyiWMAL4RvWxsQx21Vymw9961Z7NRFmSG7rw",
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"FoQ2y6JuHuHTG4rHFL3f2hCxfJMvtrq8wwPWdv8tsdkcyA8",
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"D7QQKqqs8ocGorRA12h4QoBSHDia1DkHeXT4eMfjWQ483QH",
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"J6z7FP35F9DiiU985bhkDTS3WxyeTBeoo9MtLdLoD3GiWPj",
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"EjapydCK25AagodRbDECavHAy8yQY1tmeRhwUXhVWx4cFPv",
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"H8admATcRkGCrF1dTDDBCjQDsYjMkuPaN9YwR2mSCj4DWMQ",
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"FtHMRU1fxsoswJjBvyCGvECepC7gP2X77QbNpyikYSqqR6k",
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"DzY5gwr45GVRUFzRMmeg8iffpqYF47nm3XbJhmjG97FijaE",
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"D3HKWAihSUmg8HrfeFrftSwNK7no261yA9RNr3LUUdsuzuJ",
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"D82DwwGJGTcSvtB3SmNrZejnSertbPzpkYvDUp3ibScL3ne",
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"FTPxLXLQvMDQYFA6VqNLGwWPKhemMYP791XVj8TmDpFuV3b",
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"FzGfKmS7N8Z1tvCBU5JH1eBXZQ9pCtRNoMUnNVv38wZNq72",
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"GDfm1MyLAQ7Rh8YPtF6FtMweV4hz91zzeDy2sSABNNqAbmg",
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"DiVQbq7sozeKp7PXPM1HLFc2m7ih8oepKLRK99oBY3QZak1",
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"HErWh7D2RzrjWWB2fTJfcAejD9MJpadeWWZM2Wnk7LiNWfG",
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"Es4DbDauYZYyRJbr6VxrhdcM1iufP9GtdBYf3YtSEvdwNyb",
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"EBgXT6FaVo4WsN2LmfnB2jnpDFf4zay3E492RGSn6v1tY99",
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"Dr9Zg4fxZurexParztL9SezFeHsPwdP8uGgULeRMbk8DDHJ",
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"JEnSTZJpLh91cSryptj57RtFxq9xXqf4U5wBH3qoP91ZZhN",
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"DqtRkrmtPANa8wrYR7Ce2LxJxk2iNFtiCxv1cXbx54uqdTN",
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"GaxmF53xbuTFKopVEseWiaCTa8fC6f99n4YfW8MGPSPYX3s",
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"EiCesgkAaighBKMpwFSAUdvwE4mRjBjNmmd5fP6d4FG8DAx",
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"HVbwWGUx7kCgUGap1Mfcs37g6JAZ5qsfsM7TsDRcSqvfxmd",
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"G45bc8Ajrd6YSXav77gQwjjGoAsR2qiGd1aLzkMy7o1RLwd",
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"Cqix2rD93Mdf7ytg8tBavAig2TvhXPgPZ2mejQvkq7qgRPq",
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"GpodE2S5dPeVjzHB4Drm8R9rEwcQPtwAspXqCVz1ooFWf5K",
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"CwfmfRmzPKLj3ntSCejuVwYmQ1F9iZWY4meQrAVoJ2G8Kce",
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"Fhp5NPvutRCJ4Gx3G8vCYGaveGcU3KgTwfrn5Zr8sLSgwVx",
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"GeYRRPkyi23wSF3cJGjq82117fKJZUbWsAGimUnzb5RPbB1",
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"DzCJ4y5oT611dfKQwbBDVbtCfENTdMCjb4KGMU3Mq6nyUMu",
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];
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let authorities = authorities
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.into_iter()
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.map(|address| {
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(
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grandpa_primitives::AuthorityId::from_ss58check(address)
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.expect("hard fork authority addresses are static and they should be carefully defined; qed."),
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1,
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)
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})
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.collect::<Vec<_>>();
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forks
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.into_iter()
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.map(|(set_id, hash, number)| {
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let hash = Hash::from_str(hash)
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.expect("hard fork hashes are static and they should be carefully defined; qed.");
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grandpa::AuthoritySetHardFork {
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set_id,
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block: (hash, number),
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authorities: authorities.clone(),
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last_finalized: None,
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}
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})
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.collect()
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}
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