mirror of
https://github.com/XRPLF/rippled.git
synced 2025-11-25 13:35:54 +00:00
2f485672fa
All AccountID functionality is removed from RippleAddress and
replaced with free functions. The AccountID to string conversion
cache is factored out as an explicit type with an instance in
the Application object. New base58 conversion functions are used,
with no dependence on OpenSSL.
All types and free functions related to AccountID are consolidated
into one header file. Routines to operate on "tokens" are also
introduced and consolidated into a single header file.
A token one of the cryptographic primitives used in Ripple:
Secret Seed
Server Public Key
Server Secret Key
Account ID
Account Public Key
Account Private Key
and these deprecated primitives:
Account Family Seed
Account Family Generator
758 lines
22 KiB
C++
758 lines
22 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <BeastConfig.h>
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#include <ripple/app/main/Application.h>
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#include <ripple/app/misc/AmendmentTable.h>
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#include <ripple/app/misc/Validations.h>
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#include <ripple/core/DatabaseCon.h>
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#include <ripple/core/ConfigSections.h>
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#include <ripple/protocol/JsonFields.h>
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#include <boost/format.hpp>
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#include <boost/tokenizer.hpp>
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#include <algorithm>
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namespace ripple {
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/** Track the list of "amendments"
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An "amendment" is an option that can affect transaction processing rules.
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Amendments are proposed and then adopted or rejected by the network. An
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Amendment is uniquely identified by its AmendmentID, a 256-bit key.
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*/
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template<class AppApiFacade>
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class AmendmentTableImpl final : public AmendmentTable
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{
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protected:
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using amendmentMap_t = hash_map<uint256, AmendmentState>;
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using amendmentList_t = hash_set<uint256>;
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using LockType = RippleMutex;
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using ScopedLockType = std::lock_guard <LockType>;
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LockType mLock;
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amendmentMap_t m_amendmentMap;
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std::chrono::seconds m_majorityTime; // Seconds an amendment must hold a majority
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int mMajorityFraction; // 256 = 100%
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Clock::time_point m_firstReport; // close time of first majority report
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Clock::time_point m_lastReport; // close time of most recent majority report
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beast::Journal m_journal;
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AppApiFacade m_appApiFacade;
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AmendmentState& getCreate (uint256 const& amendment);
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AmendmentState* getExisting (uint256 const& amendment);
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bool shouldEnable (std::uint32_t closeTime, const AmendmentState& fs);
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void setJson (Json::Value& v, const AmendmentState&);
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public:
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AmendmentTableImpl (
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std::chrono::seconds majorityTime,
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int majorityFraction,
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beast::Journal journal)
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: m_majorityTime (majorityTime)
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, mMajorityFraction (majorityFraction)
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, m_firstReport (0)
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, m_lastReport (0)
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, m_journal (journal)
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{
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}
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void addInitial (Section const& section) override;
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void addKnown (AmendmentName const& name) override;
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uint256 get (std::string const& name) override;
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bool veto (uint256 const& amendment) override;
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bool unVeto (uint256 const& amendment) override;
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bool enable (uint256 const& amendment) override;
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bool disable (uint256 const& amendment) override;
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bool isEnabled (uint256 const& amendment) override;
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bool isSupported (uint256 const& amendment) override;
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void setEnabled (const std::vector<uint256>& amendments) override;
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void setSupported (const std::vector<uint256>& amendments) override;
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void reportValidations (const AmendmentSet&) override;
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Json::Value getJson (int) override;
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Json::Value getJson (uint256 const&) override;
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void doValidation (Ledger::ref lastClosedLedger, STObject& baseValidation) override;
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void doVoting (Ledger::ref lastClosedLedger,
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std::shared_ptr<SHAMap> const& initialPosition) override;
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amendmentList_t getVetoed();
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amendmentList_t getEnabled();
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amendmentList_t getToEnable(Clock::time_point closeTime); // gets amendments we would vote to enable
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amendmentList_t getDesired(); // amendments we support, do not veto, are not enabled
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};
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namespace detail
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{
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/** preEnabledAmendments is a static collection of amendments that are are
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enabled at build time.
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Add amendments to this collection at build time to enable them on this
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server.
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*/
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std::vector<AmendmentName> const preEnabledAmendments;
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}
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template<class AppApiFacade>
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void
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AmendmentTableImpl<AppApiFacade>::addInitial (Section const& section)
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{
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for (auto const& a : detail::preEnabledAmendments)
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{
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if (!a.valid ())
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{
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std::string const errorMsg =
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(boost::format (
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"preEnabledAmendments contains an invalid hash (expected "
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"a hex number). Value was: %1%") %
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a.hexString ()).str ();
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throw std::runtime_error (errorMsg);
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}
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}
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std::vector<AmendmentName> toAdd (detail::preEnabledAmendments);
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{
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// add the amendments from the config file
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int const numExpectedToks = 2;
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for (auto const& line : section.lines ())
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{
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boost::tokenizer<> tokenizer (line);
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std::vector<std::string> tokens (tokenizer.begin (),
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tokenizer.end ());
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if (tokens.size () != numExpectedToks)
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{
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std::string const errorMsg =
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(boost::format (
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"The %1% section in the config file expects %2% "
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"items. Found %3%. Line was: %4%") %
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SECTION_AMENDMENTS % numExpectedToks % tokens.size () %
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line).str ();
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throw std::runtime_error (errorMsg);
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}
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toAdd.emplace_back (std::move (tokens[0]), std::move (tokens[1]));
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if (!toAdd.back ().valid ())
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{
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std::string const errorMsg =
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(boost::format (
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"%1% is not a valid hash. Expected a hex "
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"number. In config setcion: %2%. Line was: "
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"%3%") %
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toAdd.back ().hexString () % SECTION_AMENDMENTS %
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line).str ();
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throw std::runtime_error (errorMsg);
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}
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}
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}
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for (auto const& a : toAdd)
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{
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addKnown (a);
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enable (a.id ());
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}
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}
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template<class AppApiFacade>
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AmendmentState&
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AmendmentTableImpl<AppApiFacade>::getCreate (uint256 const& amendmentHash)
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{
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// call with the mutex held
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auto iter (m_amendmentMap.find (amendmentHash));
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if (iter == m_amendmentMap.end())
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{
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AmendmentState& amendment = m_amendmentMap[amendmentHash];
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m_appApiFacade.setMajorityTimesFromDBToState (amendment, amendmentHash);
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return amendment;
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}
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return iter->second;
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}
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template<class AppApiFacade>
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AmendmentState*
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AmendmentTableImpl<AppApiFacade>::getExisting (uint256 const& amendmentHash)
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{
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// call with the mutex held
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auto iter (m_amendmentMap.find (amendmentHash));
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if (iter == m_amendmentMap.end())
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return nullptr;
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return & (iter->second);
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}
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template<class AppApiFacade>
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uint256
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AmendmentTableImpl<AppApiFacade>::get (std::string const& name)
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{
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ScopedLockType sl (mLock);
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for (auto const& e : m_amendmentMap)
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{
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if (name == e.second.mFriendlyName)
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return e.first;
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}
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return uint256 ();
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}
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template<class AppApiFacade>
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void
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AmendmentTableImpl<AppApiFacade>::addKnown (AmendmentName const& name)
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{
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if (!name.valid ())
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{
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std::string const errorMsg =
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(boost::format (
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"addKnown was given an invalid hash (expected a hex number). "
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"Value was: %1%") %
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name.hexString ()).str ();
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throw std::runtime_error (errorMsg);
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}
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ScopedLockType sl (mLock);
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AmendmentState& amendment = getCreate (name.id ());
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if (!name.friendlyName ().empty ())
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amendment.setFriendlyName (name.friendlyName ());
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amendment.mVetoed = false;
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amendment.mSupported = true;
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}
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template<class AppApiFacade>
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bool
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AmendmentTableImpl<AppApiFacade>::veto (uint256 const& amendment)
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{
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ScopedLockType sl (mLock);
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AmendmentState& s = getCreate (amendment);
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if (s.mVetoed)
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return false;
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s.mVetoed = true;
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return true;
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}
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template<class AppApiFacade>
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bool
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AmendmentTableImpl<AppApiFacade>::unVeto (uint256 const& amendment)
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{
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ScopedLockType sl (mLock);
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AmendmentState* s = getExisting (amendment);
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if (!s || !s->mVetoed)
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return false;
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s->mVetoed = false;
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return true;
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}
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template<class AppApiFacade>
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bool
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AmendmentTableImpl<AppApiFacade>::enable (uint256 const& amendment)
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{
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ScopedLockType sl (mLock);
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AmendmentState& s = getCreate (amendment);
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if (s.mEnabled)
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return false;
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s.mEnabled = true;
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return true;
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}
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template<class AppApiFacade>
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bool
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AmendmentTableImpl<AppApiFacade>::disable (uint256 const& amendment)
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{
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ScopedLockType sl (mLock);
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AmendmentState* s = getExisting (amendment);
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if (!s || !s->mEnabled)
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return false;
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s->mEnabled = false;
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return true;
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}
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template<class AppApiFacade>
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bool
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AmendmentTableImpl<AppApiFacade>::isEnabled (uint256 const& amendment)
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{
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ScopedLockType sl (mLock);
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AmendmentState* s = getExisting (amendment);
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return s && s->mEnabled;
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}
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template<class AppApiFacade>
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bool
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AmendmentTableImpl<AppApiFacade>::isSupported (uint256 const& amendment)
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{
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ScopedLockType sl (mLock);
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AmendmentState* s = getExisting (amendment);
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return s && s->mSupported;
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}
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template<class AppApiFacade>
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typename AmendmentTableImpl<AppApiFacade>::amendmentList_t
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AmendmentTableImpl<AppApiFacade>::getVetoed ()
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{
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amendmentList_t ret;
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ScopedLockType sl (mLock);
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for (auto const& e : m_amendmentMap)
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{
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if (e.second.mVetoed)
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ret.insert (e.first);
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}
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return ret;
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}
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template<class AppApiFacade>
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typename AmendmentTableImpl<AppApiFacade>::amendmentList_t
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AmendmentTableImpl<AppApiFacade>::getEnabled ()
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{
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amendmentList_t ret;
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ScopedLockType sl (mLock);
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for (auto const& e : m_amendmentMap)
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{
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if (e.second.mEnabled)
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ret.insert (e.first);
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}
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return ret;
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}
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template<class AppApiFacade>
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bool
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AmendmentTableImpl<AppApiFacade>::shouldEnable (std::uint32_t closeTime,
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const AmendmentState& fs)
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{
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if (fs.mVetoed || fs.mEnabled || !fs.mSupported || (fs.m_lastMajority != m_lastReport))
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return false;
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if (fs.m_firstMajority == m_firstReport)
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{
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// had a majority when we first started the server, relaxed check
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// WRITEME
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}
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// didn't have a majority when we first started the server, normal check
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return (fs.m_lastMajority - fs.m_firstMajority) > m_majorityTime.count();
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}
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template<class AppApiFacade>
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typename AmendmentTableImpl<AppApiFacade>::amendmentList_t
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AmendmentTableImpl<AppApiFacade>::getToEnable (Clock::time_point closeTime)
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{
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amendmentList_t ret;
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ScopedLockType sl (mLock);
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if (m_lastReport != 0)
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{
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for (auto const& e : m_amendmentMap)
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{
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if (shouldEnable (closeTime, e.second))
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ret.insert (e.first);
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}
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}
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return ret;
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}
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template<class AppApiFacade>
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typename AmendmentTableImpl<AppApiFacade>::amendmentList_t
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AmendmentTableImpl<AppApiFacade>::getDesired ()
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{
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amendmentList_t ret;
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ScopedLockType sl (mLock);
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for (auto const& e : m_amendmentMap)
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{
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if (e.second.mSupported && !e.second.mEnabled && !e.second.mVetoed)
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ret.insert (e.first);
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}
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return ret;
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}
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template<class AppApiFacade>
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void
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AmendmentTableImpl<AppApiFacade>::reportValidations (const AmendmentSet& set)
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{
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if (set.mTrustedValidations == 0)
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return;
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int threshold = (set.mTrustedValidations * mMajorityFraction) / 256;
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using u256_int_pair = std::map<uint256, int>::value_type;
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ScopedLockType sl (mLock);
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if (m_firstReport == 0)
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m_firstReport = set.mCloseTime;
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std::vector<uint256> changedAmendments;
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changedAmendments.reserve (set.mVotes.size());
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for (auto const& e : set.mVotes)
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{
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AmendmentState& state = m_amendmentMap[e.first];
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if (m_journal.debug) m_journal.debug <<
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"Amendment " << to_string (e.first) <<
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" has " << e.second <<
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" votes, needs " << threshold;
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if (e.second >= threshold)
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{
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// we have a majority
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state.m_lastMajority = set.mCloseTime;
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if (state.m_firstMajority == 0)
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{
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if (m_journal.warning) m_journal.warning <<
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"Amendment " << to_string (e.first) <<
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" attains a majority vote";
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state.m_firstMajority = set.mCloseTime;
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changedAmendments.push_back(e.first);
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}
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}
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else // we have no majority
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{
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if (state.m_firstMajority != 0)
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{
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if (m_journal.warning) m_journal.warning <<
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"Amendment " << to_string (e.first) <<
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" loses majority vote";
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state.m_firstMajority = 0;
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state.m_lastMajority = 0;
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changedAmendments.push_back(e.first);
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}
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}
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}
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m_lastReport = set.mCloseTime;
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if (!changedAmendments.empty())
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{
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m_appApiFacade.setMajorityTimesFromStateToDB (changedAmendments,
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m_amendmentMap);
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changedAmendments.clear ();
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}
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}
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template<class AppApiFacade>
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void
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AmendmentTableImpl<AppApiFacade>::setEnabled (const std::vector<uint256>& amendments)
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{
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ScopedLockType sl (mLock);
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for (auto& e : m_amendmentMap)
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{
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e.second.mEnabled = false;
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}
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for (auto const& e : amendments)
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{
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m_amendmentMap[e].mEnabled = true;
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}
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}
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template<class AppApiFacade>
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void
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AmendmentTableImpl<AppApiFacade>::setSupported (const std::vector<uint256>& amendments)
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{
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ScopedLockType sl (mLock);
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for (auto &e : m_amendmentMap)
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{
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e.second.mSupported = false;
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}
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for (auto const& e : amendments)
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{
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m_amendmentMap[e].mSupported = true;
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}
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}
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template<class AppApiFacade>
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void
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AmendmentTableImpl<AppApiFacade>::doValidation (Ledger::ref lastClosedLedger,
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STObject& baseValidation)
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{
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auto lAmendments = getDesired();
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if (lAmendments.empty())
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return;
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STVector256 amendments (sfAmendments);
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for (auto const& id : lAmendments)
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amendments.push_back (id);
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std::sort (amendments.begin (), amendments.end ());
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baseValidation.setFieldV256 (sfAmendments, amendments);
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}
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template<class AppApiFacade>
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void
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AmendmentTableImpl<AppApiFacade>::doVoting (Ledger::ref lastClosedLedger,
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std::shared_ptr<SHAMap> const& initialPosition)
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{
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// LCL must be flag ledger
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assert((lastClosedLedger->getLedgerSeq () % 256) == 0);
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AmendmentSet amendmentSet (lastClosedLedger->getParentCloseTimeNC ());
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// get validations for ledger before flag ledger
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ValidationSet valSet = m_appApiFacade.getValidations (
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lastClosedLedger->getParentHash ());
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for (auto const& entry : valSet)
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{
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auto const& val = *entry.second;
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if (val.isTrusted ())
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{
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amendmentSet.addVoter ();
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if (val.isFieldPresent (sfAmendments))
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{
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|
for (auto const& amendment : val.getFieldV256 (sfAmendments))
|
|
{
|
|
amendmentSet.addVote (amendment);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
reportValidations (amendmentSet);
|
|
|
|
amendmentList_t lAmendments = getToEnable (lastClosedLedger->getCloseTimeNC ());
|
|
for (auto const& uAmendment : lAmendments)
|
|
{
|
|
if (m_journal.warning) m_journal.warning <<
|
|
"Voting for amendment: " << uAmendment;
|
|
|
|
// Create the transaction to enable the amendment
|
|
STTx trans (ttAMENDMENT);
|
|
trans.setAccountID (sfAccount, AccountID ());
|
|
trans.setFieldH256 (sfAmendment, uAmendment);
|
|
uint256 txID = trans.getTransactionID ();
|
|
|
|
if (m_journal.warning) m_journal.warning <<
|
|
"Vote ID: " << txID;
|
|
|
|
// Inject the transaction into our initial proposal
|
|
Serializer s;
|
|
trans.add (s);
|
|
#if RIPPLE_PROPOSE_AMENDMENTS
|
|
auto tItem = std::make_shared<SHAMapItem> (txID, s.peekData ());
|
|
if (!initialPosition->addGiveItem (tItem, true, false))
|
|
{
|
|
if (m_journal.warning) m_journal.warning <<
|
|
"Ledger already had amendment transaction";
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
template<class AppApiFacade>
|
|
Json::Value
|
|
AmendmentTableImpl<AppApiFacade>::getJson (int)
|
|
{
|
|
Json::Value ret(Json::objectValue);
|
|
{
|
|
ScopedLockType sl(mLock);
|
|
for (auto const& e : m_amendmentMap)
|
|
{
|
|
setJson (ret[to_string (e.first)] = Json::objectValue, e.second);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
template<class AppApiFacade>
|
|
void
|
|
AmendmentTableImpl<AppApiFacade>::setJson (Json::Value& v, const AmendmentState& fs)
|
|
{
|
|
if (!fs.mFriendlyName.empty())
|
|
v[jss::name] = fs.mFriendlyName;
|
|
|
|
v[jss::supported] = fs.mSupported;
|
|
v[jss::vetoed] = fs.mVetoed;
|
|
|
|
if (fs.mEnabled)
|
|
v[jss::enabled] = true;
|
|
else
|
|
{
|
|
v[jss::enabled] = false;
|
|
|
|
if (m_lastReport != 0)
|
|
{
|
|
if (fs.m_lastMajority == 0)
|
|
{
|
|
v["majority"] = false;
|
|
}
|
|
else
|
|
{
|
|
if (fs.m_firstMajority != 0)
|
|
{
|
|
if (fs.m_firstMajority == m_firstReport)
|
|
v["majority_start"] = "start";
|
|
else
|
|
v["majority_start"] = fs.m_firstMajority;
|
|
}
|
|
|
|
if (fs.m_lastMajority != 0)
|
|
{
|
|
if (fs.m_lastMajority == m_lastReport)
|
|
v["majority_until"] = "now";
|
|
else
|
|
v["majority_until"] = fs.m_lastMajority;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (fs.mVetoed)
|
|
v["veto"] = true;
|
|
}
|
|
|
|
template<class AppApiFacade>
|
|
Json::Value
|
|
AmendmentTableImpl<AppApiFacade>::getJson (uint256 const& amendmentID)
|
|
{
|
|
Json::Value ret = Json::objectValue;
|
|
Json::Value& jAmendment = (ret[to_string (amendmentID)] = Json::objectValue);
|
|
|
|
{
|
|
ScopedLockType sl(mLock);
|
|
|
|
AmendmentState& amendmentState = getCreate (amendmentID);
|
|
setJson (jAmendment, amendmentState);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
namespace detail
|
|
{
|
|
class AppApiFacadeImpl final
|
|
{
|
|
public:
|
|
void setMajorityTimesFromDBToState (AmendmentState& toUpdate,
|
|
uint256 const& amendmentHash) const;
|
|
void setMajorityTimesFromStateToDB (
|
|
std::vector<uint256> const& changedAmendments,
|
|
hash_map<uint256, AmendmentState>& amendmentMap) const;
|
|
ValidationSet getValidations (uint256 const& hash) const;
|
|
};
|
|
|
|
class AppApiFacadeMock final
|
|
{
|
|
public:
|
|
void setMajorityTimesFromDBToState (AmendmentState& toUpdate,
|
|
uint256 const& amendmentHash) const {};
|
|
void setMajorityTimesFromStateToDB (
|
|
std::vector<uint256> const& changedAmendments,
|
|
hash_map<uint256, AmendmentState>& amendmentMap) const {};
|
|
ValidationSet getValidations (uint256 const& hash) const
|
|
{
|
|
return ValidationSet ();
|
|
};
|
|
};
|
|
|
|
void AppApiFacadeImpl::setMajorityTimesFromDBToState (
|
|
AmendmentState& toUpdate,
|
|
uint256 const& amendmentHash) const
|
|
{
|
|
std::string query =
|
|
"SELECT FirstMajority,LastMajority FROM Features WHERE hash='";
|
|
query.append (to_string (amendmentHash));
|
|
query.append ("';");
|
|
|
|
auto db (getApp ().getWalletDB ().checkoutDb ());
|
|
|
|
boost::optional<std::uint64_t> fm, lm;
|
|
soci::statement st = (db->prepare << query,
|
|
soci::into(fm),
|
|
soci::into(lm));
|
|
st.execute ();
|
|
while (st.fetch ())
|
|
{
|
|
toUpdate.m_firstMajority = fm.value_or (0);
|
|
toUpdate.m_lastMajority = lm.value_or (0);
|
|
}
|
|
}
|
|
|
|
void AppApiFacadeImpl::setMajorityTimesFromStateToDB (
|
|
std::vector<uint256> const& changedAmendments,
|
|
hash_map<uint256, AmendmentState>& amendmentMap) const
|
|
{
|
|
if (changedAmendments.empty ())
|
|
return;
|
|
|
|
auto db (getApp ().getWalletDB ().checkoutDb ());
|
|
|
|
soci::transaction tr(*db);
|
|
|
|
for (auto const& hash : changedAmendments)
|
|
{
|
|
AmendmentState const& fState = amendmentMap[hash];
|
|
*db << boost::str (boost::format ("UPDATE Features SET FirstMajority "
|
|
"= %d WHERE Hash = '%s';") %
|
|
fState.m_firstMajority % to_string (hash));
|
|
*db << boost::str (boost::format ("UPDATE Features SET LastMajority "
|
|
"= %d WHERE Hash = '%s';") %
|
|
fState.m_lastMajority % to_string (hash));
|
|
}
|
|
|
|
tr.commit ();
|
|
}
|
|
|
|
ValidationSet AppApiFacadeImpl::getValidations (uint256 const& hash) const
|
|
{
|
|
return getApp ().getValidations ().getValidations (hash);
|
|
}
|
|
} // detail
|
|
|
|
std::unique_ptr<AmendmentTable> make_AmendmentTable (
|
|
std::chrono::seconds majorityTime,
|
|
int majorityFraction,
|
|
beast::Journal journal,
|
|
bool useMockFacade)
|
|
{
|
|
if (useMockFacade)
|
|
{
|
|
return std::make_unique<AmendmentTableImpl<detail::AppApiFacadeMock>>(
|
|
majorityTime, majorityFraction, std::move (journal));
|
|
}
|
|
|
|
return std::make_unique<AmendmentTableImpl<detail::AppApiFacadeImpl>>(
|
|
majorityTime, majorityFraction, std::move (journal));
|
|
}
|
|
|
|
} // ripple
|