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6919c823cb
CSubNet serialization code that was removed in
fa4e6afdae was needed by multiprocess code
to share ban map between gui and node processes.
Rather than adding it back, use suggestion from MarcoFalke
<falke.marco@gmail.com>
https://github.com/bitcoin/bitcoin/pull/10102#discussion_r690922929 to
use JSON serialization. This requires making BanMapToJson /
BanMapFromJson functions public.
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
// Copyright (c) 2021 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <net_types.h>
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#include <netaddress.h>
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#include <netbase.h>
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#include <univalue.h>
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CBanEntry::CBanEntry(const UniValue& json)
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: nVersion(json["version"].get_int()), nCreateTime(json["ban_created"].get_int64()),
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nBanUntil(json["banned_until"].get_int64())
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{
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}
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UniValue CBanEntry::ToJson() const
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{
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UniValue json(UniValue::VOBJ);
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json.pushKV("version", nVersion);
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json.pushKV("ban_created", nCreateTime);
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json.pushKV("banned_until", nBanUntil);
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return json;
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}
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static const char* BANMAN_JSON_ADDR_KEY = "address";
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/**
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* Convert a `banmap_t` object to a JSON array.
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* @param[in] bans Bans list to convert.
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* @return a JSON array, similar to the one returned by the `listbanned` RPC. Suitable for
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* passing to `BanMapFromJson()`.
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*/
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UniValue BanMapToJson(const banmap_t& bans)
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{
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UniValue bans_json(UniValue::VARR);
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for (const auto& it : bans) {
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const auto& address = it.first;
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const auto& ban_entry = it.second;
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UniValue j = ban_entry.ToJson();
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j.pushKV(BANMAN_JSON_ADDR_KEY, address.ToString());
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bans_json.push_back(j);
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}
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return bans_json;
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}
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/**
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* Convert a JSON array to a `banmap_t` object.
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* @param[in] bans_json JSON to convert, must be as returned by `BanMapToJson()`.
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* @param[out] bans Bans list to create from the JSON.
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* @throws std::runtime_error if the JSON does not have the expected fields or they contain
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* unparsable values.
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*/
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void BanMapFromJson(const UniValue& bans_json, banmap_t& bans)
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{
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for (const auto& ban_entry_json : bans_json.getValues()) {
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CSubNet subnet;
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const auto& subnet_str = ban_entry_json[BANMAN_JSON_ADDR_KEY].get_str();
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if (!LookupSubNet(subnet_str, subnet)) {
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throw std::runtime_error(
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strprintf("Cannot parse banned address or subnet: %s", subnet_str));
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}
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bans.insert_or_assign(subnet, CBanEntry{ban_entry_json});
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}
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}
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