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merge bitcoin#22848: Expose BanMapToJson / BanMapFromJson
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kwvg committed Jun 4, 2024
1 parent 9065eed commit 3f69606
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Showing 5 changed files with 112 additions and 85 deletions.
1 change: 1 addition & 0 deletions src/Makefile.am
Original file line number Diff line number Diff line change
Expand Up @@ -730,6 +730,7 @@ libbitcoin_common_a_SOURCES = \
key.cpp \
key_io.cpp \
merkleblock.cpp \
net_types.cpp \
netaddress.cpp \
netbase.cpp \
net_permissions.cpp \
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57 changes: 0 additions & 57 deletions src/addrdb.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -20,64 +20,7 @@

#include <cstdint>

CBanEntry::CBanEntry(const UniValue& json)
: nVersion(json["version"].get_int()), nCreateTime(json["ban_created"].get_int64()),
nBanUntil(json["banned_until"].get_int64())
{
}

UniValue CBanEntry::ToJson() const
{
UniValue json(UniValue::VOBJ);
json.pushKV("version", nVersion);
json.pushKV("ban_created", nCreateTime);
json.pushKV("banned_until", nBanUntil);
return json;
}

namespace {

static const char* BANMAN_JSON_ADDR_KEY = "address";

/**
* Convert a `banmap_t` object to a JSON array.
* @param[in] bans Bans list to convert.
* @return a JSON array, similar to the one returned by the `listbanned` RPC. Suitable for
* passing to `BanMapFromJson()`.
*/
UniValue BanMapToJson(const banmap_t& bans)
{
UniValue bans_json(UniValue::VARR);
for (const auto& it : bans) {
const auto& address = it.first;
const auto& ban_entry = it.second;
UniValue j = ban_entry.ToJson();
j.pushKV(BANMAN_JSON_ADDR_KEY, address.ToString());
bans_json.push_back(j);
}
return bans_json;
}

/**
* Convert a JSON array to a `banmap_t` object.
* @param[in] bans_json JSON to convert, must be as returned by `BanMapToJson()`.
* @param[out] bans Bans list to create from the JSON.
* @throws std::runtime_error if the JSON does not have the expected fields or they contain
* unparsable values.
*/
void BanMapFromJson(const UniValue& bans_json, banmap_t& bans)
{
for (const auto& ban_entry_json : bans_json.getValues()) {
CSubNet subnet;
const auto& subnet_str = ban_entry_json[BANMAN_JSON_ADDR_KEY].get_str();
if (!LookupSubNet(subnet_str, subnet)) {
throw std::runtime_error(
strprintf("Cannot parse banned address or subnet: %s", subnet_str));
}
bans.insert_or_assign(subnet, CBanEntry{ban_entry_json});
}
}

template <typename Stream, typename Data>
bool SerializeDB(Stream& stream, const Data& data)
{
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27 changes: 0 additions & 27 deletions src/addrdb.h
Original file line number Diff line number Diff line change
Expand Up @@ -16,33 +16,6 @@ class CAddress;
class CAddrMan;
class CDataStream;

class CBanEntry
{
public:
static constexpr int CURRENT_VERSION{1};
int nVersion{CBanEntry::CURRENT_VERSION};
int64_t nCreateTime{0};
int64_t nBanUntil{0};

CBanEntry() {}

explicit CBanEntry(int64_t nCreateTimeIn)
: nCreateTime{nCreateTimeIn} {}

/**
* Create a ban entry from JSON.
* @param[in] json A JSON representation of a ban entry, as created by `ToJson()`.
* @throw std::runtime_error if the JSON does not have the expected fields.
*/
explicit CBanEntry(const UniValue& json);

/**
* Generate a JSON representation of this ban entry.
* @return JSON suitable for passing to the `CBanEntry(const UniValue&)` constructor.
*/
UniValue ToJson() const;
};

/** Access to the (IP) address database (peers.dat) */
class CAddrDB
{
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65 changes: 65 additions & 0 deletions src/net_types.cpp
Original file line number Diff line number Diff line change
@@ -0,0 +1,65 @@
// Copyright (c) 2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <net_types.h>

#include <netaddress.h>
#include <netbase.h>
#include <univalue.h>

CBanEntry::CBanEntry(const UniValue& json)
: nVersion(json["version"].get_int()), nCreateTime(json["ban_created"].get_int64()),
nBanUntil(json["banned_until"].get_int64())
{
}

UniValue CBanEntry::ToJson() const
{
UniValue json(UniValue::VOBJ);
json.pushKV("version", nVersion);
json.pushKV("ban_created", nCreateTime);
json.pushKV("banned_until", nBanUntil);
return json;
}

static const char* BANMAN_JSON_ADDR_KEY = "address";

/**
* Convert a `banmap_t` object to a JSON array.
* @param[in] bans Bans list to convert.
* @return a JSON array, similar to the one returned by the `listbanned` RPC. Suitable for
* passing to `BanMapFromJson()`.
*/
UniValue BanMapToJson(const banmap_t& bans)
{
UniValue bans_json(UniValue::VARR);
for (const auto& it : bans) {
const auto& address = it.first;
const auto& ban_entry = it.second;
UniValue j = ban_entry.ToJson();
j.pushKV(BANMAN_JSON_ADDR_KEY, address.ToString());
bans_json.push_back(j);
}
return bans_json;
}

/**
* Convert a JSON array to a `banmap_t` object.
* @param[in] bans_json JSON to convert, must be as returned by `BanMapToJson()`.
* @param[out] bans Bans list to create from the JSON.
* @throws std::runtime_error if the JSON does not have the expected fields or they contain
* unparsable values.
*/
void BanMapFromJson(const UniValue& bans_json, banmap_t& bans)
{
for (const auto& ban_entry_json : bans_json.getValues()) {
CSubNet subnet;
const auto& subnet_str = ban_entry_json[BANMAN_JSON_ADDR_KEY].get_str();
if (!LookupSubNet(subnet_str, subnet)) {
throw std::runtime_error(
strprintf("Cannot parse banned address or subnet: %s", subnet_str));
}
bans.insert_or_assign(subnet, CBanEntry{ban_entry_json});
}
}
47 changes: 46 additions & 1 deletion src/net_types.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,14 +7,59 @@

#include <util/expected.h>

#include <cstdint>
#include <map>
#include <string>

class CBanEntry;
class CSubNet;
class UniValue;

class CBanEntry
{
public:
static constexpr int CURRENT_VERSION{1};
int nVersion{CBanEntry::CURRENT_VERSION};
int64_t nCreateTime{0};
int64_t nBanUntil{0};

CBanEntry() {}

explicit CBanEntry(int64_t nCreateTimeIn)
: nCreateTime{nCreateTimeIn} {}

/**
* Create a ban entry from JSON.
* @param[in] json A JSON representation of a ban entry, as created by `ToJson()`.
* @throw std::runtime_error if the JSON does not have the expected fields.
*/
explicit CBanEntry(const UniValue& json);

/**
* Generate a JSON representation of this ban entry.
* @return JSON suitable for passing to the `CBanEntry(const UniValue&)` constructor.
*/
UniValue ToJson() const;
};

using banmap_t = std::map<CSubNet, CBanEntry>;

/**
* Convert a `banmap_t` object to a JSON array.
* @param[in] bans Bans list to convert.
* @return a JSON array, similar to the one returned by the `listbanned` RPC. Suitable for
* passing to `BanMapFromJson()`.
*/
UniValue BanMapToJson(const banmap_t& bans);

/**
* Convert a JSON array to a `banmap_t` object.
* @param[in] bans_json JSON to convert, must be as returned by `BanMapToJson()`.
* @param[out] bans Bans list to create from the JSON.
* @throws std::runtime_error if the JSON does not have the expected fields or they contain
* unparsable values.
*/
void BanMapFromJson(const UniValue& bans_json, banmap_t& bans);

struct MisbehavingError
{
int score;
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