Add filtering capability to parity_pendingTransactions (issue 8269) (…

…#10506)

* expand parameters for pending_transactions()

* move ready_transactions content into filtered method

* apply filter based on tx_hash, sender or receiver

* call filtered transactions from RPC interface

* attempt at testing...

* replace parameters with _ on light client

* addes some comments

* removed uncompleted tests in miner.rs

* attempt at testing, needs more work...

* Formatting for ready_transactions_filtered

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Use map_or instead of if-let

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* additional map_or replacement

* change receiver type to Option<Option<Address>>

* remove faulty MiningService tests, test RPC later

* remove tx hash from pending transaction filtering

* as_unsigned() method for SignedTransaction

* implement Deserialize for FilterOptions

* implement Validate for MapAccess type

* additional formatting

* directly name cover in pattern matching

* test valid vull deserialization

* test valid sender operators

* test valid receiver operators

* test valid gas operators

* test valid gas price operators

* test valid value operators

* test valid nonce operators

* additional tsets for defaults, unknown filter types, unknown operators and some renames

* move filter_options to ethcore to avoid package cycling

* adjusted function/method parameters for FilterOptions

* implement filter for sender and receiver

* implement filter for gas

* implement filter for gas price, tx value and nonce

* improve filtering implementation; use common function, use combinators

* improved documentation for FilterOptions

* small documentation adjustments

* remove warnings

* replace FilterOperator::ContractCreation with FilterOperator::Eq(None)

* implement validate_receiver

* make small changes like renames, preamble

* cleanup code according to suggestions, add docs

* small improvements like formatting and newline

ethcore/Cargo.toml

@@ -82,6 +82,7 @@ fetch = { path = "../util/fetch" }
 kvdb-rocksdb = "0.1.3"
 parity-runtime = { path = "../util/runtime" }
 rlp_compress = { path = "../util/rlp-compress" }
+serde_json = "1.0"
 tempdir = "0.3"
 trie-standardmap = "0.12.4"
 

ethcore/src/lib.rs

@@ -122,6 +122,8 @@ extern crate blooms_db;
 extern crate env_logger;
 #[cfg(test)]
 extern crate rlp_compress;
+#[cfg(test)]
+extern crate serde_json;
 
 #[macro_use]
 extern crate ethabi_derive;