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Introduces author_hasKey and author_hasSessionKeys rpc endpoints (#4720)

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* Introduces `author_hasKey` and `author_hasSessionKeys` rpc endpoints

Both endpoints can be used to check if a key is present in the keystore.

- `hasKey` works on with an individual public key and key type. It
checks if a private key for the given combination exists in the
keystore.
- `hasSessionKeys` works with the full encoded session key blob stored
on-chain in `nextKeys`. This requires that the given blob can be decoded
by the runtime. It will return `true`, iff all public keys of the
session key exist in the storage.

Fixes: https://github.com/paritytech/substrate/issues/4696

* Update client/rpc-api/src/author/error.rs

Co-Authored-By: Nikolay Volf <nikvolf@gmail.com>

* Indentation

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>
This commit is contained in:
Bastian Köcher
2020-01-24 15:20:45 +01:00
committed by GitHub
parent 1614ce0996
commit fc99887de0
21 changed files with 223 additions and 34 deletions
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substrate/test-utils/runtime/src/lib.rs
+12
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@@ -631,6 +631,12 @@ cfg_if! {
fn generate_session_keys(_: Option<Vec<u8>>) -> Vec<u8> {
SessionKeys::generate(None)
}
fn decode_session_keys(
encoded: Vec<u8>,
) -> Option<Vec<(Vec<u8>, sp_core::crypto::KeyTypeId)>> {
SessionKeys::decode_into_raw_public_keys(&encoded)
}
}
impl frame_system_rpc_runtime_api::AccountNonceApi<Block, AccountId, Index> for Runtime {
@@ -847,6 +853,12 @@ cfg_if! {
fn generate_session_keys(_: Option<Vec<u8>>) -> Vec<u8> {
SessionKeys::generate(None)
}
fn decode_session_keys(
encoded: Vec<u8>,
) -> Option<Vec<(Vec<u8>, sp_core::crypto::KeyTypeId)>> {
SessionKeys::decode_into_raw_public_keys(&encoded)
}
}
impl frame_system_rpc_runtime_api::AccountNonceApi<Block, AccountId, Index> for Runtime {