mirror of
https://github.com/EvernodeXRPL/hpcore.git
synced 2026-04-29 15:37:59 +00:00
634 lines
22 KiB
C++
634 lines
22 KiB
C++
#include "pchheader.hpp"
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#include "conf.hpp"
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#include "crypto.hpp"
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#include "util/util.hpp"
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#include "unl.hpp"
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namespace conf
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{
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// Global contract context struct exposed to the application.
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contract_ctx ctx;
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// Global configuration struct exposed to the application.
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contract_config cfg;
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// Stores the initial startup mode of the node.
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OPERATING_MODE startup_mode;
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const static char *MODE_OBSERVER = "observer";
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const static char *MODE_PROPOSER = "proposer";
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/**
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* Loads and initializes the contract config for execution. Must be called once during application startup.
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* @return 0 for success. -1 for failure.
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*/
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int init()
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{
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// The validations/loading needs to be in this order.
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// 1. Validate contract directories
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// 2. Read and load the contract config into memory
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// 3. Validate the loaded config values
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contract_config cfg = {};
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if (validate_contract_dir_paths() == -1 ||
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read_config(cfg) == -1 ||
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validate_config(cfg) == -1 ||
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populate_runtime_config(cfg) == -1)
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{
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return -1;
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}
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return 0;
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}
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/**
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* Generates and saves new signing keys in the contract config.
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*/
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int rekey()
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{
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// Load the contract config and re-save with the newly generated keys.
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contract_config cfg = {};
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if (read_config(cfg) != 0)
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return -1;
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crypto::generate_signing_keys(cfg.pubkey, cfg.seckey);
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binpair_to_hex(cfg);
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if (write_config(cfg) != 0)
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return -1;
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std::cout << "New signing keys generated at " << ctx.config_file << std::endl;
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return 0;
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}
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/**
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* Creates a new contract directory with the default contract config.
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* By the time this gets called, the 'ctx' struct must be populated.
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* This function makes use of the paths populated in the ctx.
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*/
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int create_contract()
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{
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if (util::is_dir_exists(ctx.contract_dir))
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{
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std::cout << "Contract dir already exists. Cannot create contract at the same location.\n";
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return -1;
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}
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// Recursivly create contract directories.
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util::create_dir_tree_recursive(ctx.config_dir);
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util::create_dir_tree_recursive(ctx.hist_dir);
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util::create_dir_tree_recursive(ctx.full_hist_dir);
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util::create_dir_tree_recursive(ctx.log_dir);
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util::create_dir_tree_recursive(ctx.state_dir);
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//Create config file with default settings.
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//We populate the in-memory struct with default settings and then save it to the file.
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contract_config cfg = {};
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crypto::generate_signing_keys(cfg.pubkey, cfg.seckey);
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binpair_to_hex(cfg);
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cfg.operating_mode = OPERATING_MODE::PROPOSER;
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cfg.peerport = 22860;
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cfg.roundtime = 1000;
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cfg.pubport = 8080;
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cfg.peerdiscoverytime = 30000;
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cfg.pubidletimeout = 0;
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cfg.peeridletimeout = 120;
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cfg.msgforwarding = false;
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cfg.dynamicpeerdiscovery = false;
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cfg.fullhistory = false;
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#ifndef NDEBUG
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cfg.loglevel_type = conf::LOG_SEVERITY::DEBUG;
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cfg.loglevel = "dbg";
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#else
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cfg.loglevel_type = conf::LOG_SEVERITY::WARN;
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cfg.loglevel = "inf";
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#endif
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cfg.loggers.emplace("console");
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cfg.loggers.emplace("file");
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cfg.binary = "<your contract binary here>";
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//Save the default settings into the config file.
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if (write_config(cfg) != 0)
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return -1;
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std::cout << "Contract directory created at " << ctx.contract_dir << std::endl;
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return 0;
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}
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/**
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* Updates the contract context with directory paths based on provided base directory.
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* This is called after parsing HP command line arg in order to populate the ctx.
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*/
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void set_contract_dir_paths(std::string exepath, std::string basedir)
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{
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if (exepath.empty())
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{
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// this code branch will never execute the way main is currently coded, but it might change in future
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std::cerr << "Executable path must be specified\n";
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exit(1);
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}
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if (basedir.empty())
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{
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// this code branch will never execute the way main is currently coded, but it might change in future
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std::cerr << "a contract directory must be specified\n";
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exit(1);
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}
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// resolving the path through realpath will remove any trailing slash if present
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basedir = util::realpath(basedir);
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exepath = util::realpath(exepath);
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// Take the parent directory path.
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ctx.exe_dir = dirname(exepath.data());
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ctx.hpws_exe_path = ctx.exe_dir + "/" + "hpws";
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ctx.hpfs_exe_path = ctx.exe_dir + "/" + "hpfs";
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ctx.contract_dir = basedir;
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ctx.config_dir = basedir + "/cfg";
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ctx.config_file = ctx.config_dir + "/hp.cfg";
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ctx.tls_key_file = ctx.config_dir + "/tlskey.pem";
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ctx.tls_cert_file = ctx.config_dir + "/tlscert.pem";
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ctx.hist_dir = basedir + "/hist";
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ctx.full_hist_dir = basedir + "/fullhist";
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ctx.state_dir = basedir + "/state";
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ctx.state_rw_dir = ctx.state_dir + "/rw";
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ctx.state_serve_dir = ctx.state_dir + "/ss";
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ctx.log_dir = basedir + "/log";
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}
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int persist_unl_update(const std::set<std::string> &updated_unl)
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{
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contract_config cfg = {};
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if (read_config(cfg) == -1)
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return -1;
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cfg.unl = updated_unl;
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if (write_config(cfg) == -1)
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return -1;
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return 0;
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}
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/**
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* Reads the config file on disk and populates the in-memory 'cfg' struct.
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* @return 0 for successful loading of config. -1 for failure.
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*/
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int read_config(contract_config &cfg)
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{
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// Read the config file into json document object.
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std::ifstream ifs(ctx.config_file);
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jsoncons::json d;
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try
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{
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d = jsoncons::json::parse(ifs, jsoncons::strict_json_parsing());
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}
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catch (const std::exception &e)
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{
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std::cout << "Invalid config file format. " << e.what() << '\n';
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return -1;
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}
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ifs.close();
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// Check whether the contract version is specified.
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std::string_view cfgversion = d["version"].as<std::string_view>();
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if (cfgversion.empty())
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{
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std::cout << "Contract config version missing.\n";
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return -1;
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}
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// Check whether this contract complies with the min version requirement.
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int verresult = util::version_compare(std::string(cfgversion), std::string(util::MIN_CONTRACT_VERSION));
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if (verresult == -1)
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{
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std::cout << "Contract version too old. Minimum "
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<< util::MIN_CONTRACT_VERSION << " required. "
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<< cfgversion << " found.\n";
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return -1;
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}
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else if (verresult == -2)
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{
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std::cout << "Malformed version string.\n";
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return -1;
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}
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// Load up the values into the struct.
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if (d["mode"] == MODE_OBSERVER)
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cfg.operating_mode = OPERATING_MODE::OBSERVER;
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else if (d["mode"] == MODE_PROPOSER)
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cfg.operating_mode = OPERATING_MODE::PROPOSER;
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else
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{
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std::cout << "Invalid mode. 'observer' or 'proposer' expected.\n";
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return -1;
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}
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cfg.pubkeyhex = d["pubkeyhex"].as<std::string>();
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cfg.seckeyhex = d["seckeyhex"].as<std::string>();
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cfg.binary = d["binary"].as<std::string>();
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cfg.binargs = d["binargs"].as<std::string>();
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cfg.appbill = d["appbill"].as<std::string>();
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cfg.appbillargs = d["appbillargs"].as<std::string>();
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// Storing peers in unordered map keyed by the concatenated address:port and also saving address and port
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// seperately to retrieve easily when handling peer connections.
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std::vector<std::string> splitted_peers;
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cfg.peers.clear();
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for (auto &v : d["peers"].array_range())
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{
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const char *ipport_concat = v.as<const char *>();
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// Split the address:port text into two
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util::split_string(splitted_peers, ipport_concat, ":");
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// Push the peer address and the port to peers set
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if (splitted_peers.size() != 2)
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{
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std::cout << "Invalid peer: " << ipport_concat << "\n";
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return -1;
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}
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peer_properties peer;
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peer.ip_port.host_address = splitted_peers.front();
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peer.ip_port.port = std::stoi(splitted_peers.back());
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cfg.peers.push_back(peer);
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splitted_peers.clear();
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}
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cfg.unl.clear();
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for (auto &nodepk : d["unl"].array_range())
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{
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// Convert the public key hex of each node to binary and store it.
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std::string bin_pubkey;
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bin_pubkey.resize(crypto::PFXD_PUBKEY_BYTES);
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if (util::hex2bin(
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reinterpret_cast<unsigned char *>(bin_pubkey.data()),
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bin_pubkey.length(),
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nodepk.as<std::string_view>()) != 0)
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{
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std::cerr << "Error decoding unl list.\n";
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return -1;
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}
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cfg.unl.emplace(bin_pubkey);
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}
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cfg.peerport = d["peerport"].as<uint16_t>();
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cfg.pubport = d["pubport"].as<uint16_t>();
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cfg.roundtime = d["roundtime"].as<uint16_t>();
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cfg.peerdiscoverytime = d["peerdiscoverytime"].as<uint16_t>();
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cfg.peeridletimeout = d["peeridletimeout"].as<uint16_t>();
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cfg.pubidletimeout = d["pubidletimeout"].as<uint16_t>();
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cfg.pubmaxsize = d["pubmaxsize"].as<uint64_t>();
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cfg.pubmaxcpm = d["pubmaxcpm"].as<uint64_t>();
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cfg.pubmaxbadmpm = d["pubmaxbadmpm"].as<uint64_t>();
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cfg.pubmaxcons = d["pubmaxcons"].as<unsigned int>();
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cfg.peermaxsize = d["peermaxsize"].as<uint64_t>();
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cfg.peermaxcpm = d["peermaxcpm"].as<uint64_t>();
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cfg.peermaxdupmpm = d["peermaxdupmpm"].as<uint64_t>();
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cfg.peermaxbadmpm = d["peermaxbadmpm"].as<uint64_t>();
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cfg.peermaxbadsigpm = d["peermaxbadsigpm"].as<uint64_t>();
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cfg.peermaxcons = d["peermaxcons"].as<uint16_t>();
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cfg.peermaxknowncons = d["peermaxknowncons"].as<uint16_t>();
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// If peermaxknowcons is greater than peermaxcons then show error and stop execution.
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if (cfg.peermaxknowncons > cfg.peermaxcons)
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{
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std::cout << "Invalid configuration values: peermaxknowncons count should not exceed peermaxcons." << '\n';
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return -1;
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}
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cfg.msgforwarding = d["msgforwarding"].as<bool>();
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cfg.dynamicpeerdiscovery = d["dynamicpeerdiscovery"].as<bool>();
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cfg.fullhistory = d["fullhistory"].as<bool>();
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cfg.loglevel = d["loglevel"].as<std::string>();
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cfg.loglevel_type = get_loglevel_type(cfg.loglevel);
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cfg.loggers.clear();
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for (auto &v : d["loggers"].array_range())
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cfg.loggers.emplace(v.as<std::string>());
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return 0;
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}
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/**
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* Saves the provided 'cfg' struct into the config file.
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* @return 0 for successful save. -1 for failure.
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*/
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int write_config(const contract_config &cfg)
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{
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// Popualte json document with 'cfg' values.
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// ojson is used instead of json to preserve insertion order.
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jsoncons::ojson d;
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d.insert_or_assign("version", util::HP_VERSION);
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d.insert_or_assign("mode", cfg.operating_mode == OPERATING_MODE::OBSERVER ? MODE_OBSERVER : MODE_PROPOSER);
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d.insert_or_assign("pubkeyhex", cfg.pubkeyhex.data());
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d.insert_or_assign("seckeyhex", cfg.seckeyhex.data());
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d.insert_or_assign("binary", cfg.binary.data());
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d.insert_or_assign("binargs", cfg.binargs.data());
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d.insert_or_assign("appbill", cfg.appbill.data());
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d.insert_or_assign("appbillargs", cfg.appbillargs.data());
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jsoncons::ojson peers(jsoncons::json_array_arg);
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for (const auto &peer : cfg.peers)
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{
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const std::string concat_str = std::string(peer.ip_port.host_address).append(":").append(std::to_string(peer.ip_port.port));
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peers.push_back(concat_str);
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}
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d.insert_or_assign("peers", peers);
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jsoncons::ojson unl(jsoncons::json_array_arg);
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for (const auto &nodepk : cfg.unl)
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{
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std::string hex_pubkey;
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util::bin2hex(
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hex_pubkey,
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reinterpret_cast<const unsigned char *>(nodepk.data()),
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nodepk.length());
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if (hex_pubkey != cfg.pubkeyhex)
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unl.push_back(hex_pubkey); // We do not save our own pubkey in config file.
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}
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d.insert_or_assign("unl", unl);
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d.insert_or_assign("peerport", cfg.peerport);
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d.insert_or_assign("pubport", cfg.pubport);
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d.insert_or_assign("roundtime", cfg.roundtime);
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d.insert_or_assign("peerdiscoverytime", cfg.peerdiscoverytime);
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d.insert_or_assign("peeridletimeout", cfg.peeridletimeout);
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d.insert_or_assign("pubidletimeout", cfg.pubidletimeout);
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d.insert_or_assign("pubmaxsize", cfg.pubmaxsize);
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d.insert_or_assign("pubmaxcpm", cfg.pubmaxcpm);
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d.insert_or_assign("pubmaxbadmpm", cfg.pubmaxbadmpm);
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d.insert_or_assign("pubmaxcons", cfg.pubmaxcons);
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d.insert_or_assign("peermaxsize", cfg.peermaxsize);
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d.insert_or_assign("peermaxcpm", cfg.peermaxcpm);
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d.insert_or_assign("peermaxdupmpm", cfg.peermaxdupmpm);
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d.insert_or_assign("peermaxbadmpm", cfg.peermaxbadmpm);
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d.insert_or_assign("peermaxbadsigpm", cfg.peermaxbadsigpm);
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d.insert_or_assign("peermaxcons", cfg.peermaxcons);
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d.insert_or_assign("peermaxknowncons", cfg.peermaxknowncons);
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d.insert_or_assign("msgforwarding", cfg.msgforwarding);
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d.insert_or_assign("dynamicpeerdiscovery", cfg.dynamicpeerdiscovery);
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d.insert_or_assign("fullhistory", cfg.fullhistory);
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d.insert_or_assign("loglevel", cfg.loglevel);
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jsoncons::ojson loggers(jsoncons::json_array_arg);
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for (std::string_view logger : cfg.loggers)
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{
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loggers.push_back(logger.data());
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}
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d.insert_or_assign("loggers", loggers);
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// Write the json doc to file.
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std::ofstream ofs(ctx.config_file);
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try
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{
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jsoncons::json_options options;
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options.object_array_line_splits(jsoncons::line_split_kind::multi_line);
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ofs << jsoncons::pretty_print(d, options);
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}
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catch (const std::exception &e)
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{
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std::cerr << "Writing to config file failed. " << ctx.config_file << std::endl;
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ofs.close();
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return -1;
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}
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ofs.close();
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return 0;
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}
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int populate_runtime_config(contract_config &parsed_cfg)
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{
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cfg = parsed_cfg;
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startup_mode = cfg.operating_mode;
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// Convert the hex keys to binary.
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cfg.pubkey.resize(crypto::PFXD_PUBKEY_BYTES);
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if (util::hex2bin(
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reinterpret_cast<unsigned char *>(cfg.pubkey.data()),
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cfg.pubkey.length(),
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cfg.pubkeyhex) != 0)
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{
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std::cout << "Error decoding hex public key.\n";
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return -1;
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}
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cfg.seckey.resize(crypto::PFXD_SECKEY_BYTES);
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if (util::hex2bin(
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reinterpret_cast<unsigned char *>(cfg.seckey.data()),
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cfg.seckey.length(),
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cfg.seckeyhex) != 0)
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{
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std::cout << "Error decoding hex secret key.\n";
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return -1;
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}
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// Populate unl.
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cfg.unl.emplace(cfg.pubkey); // Add self pubkey to unl.
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unl::init(cfg.unl);
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// Populate runtime contract execution args.
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if (!cfg.binargs.empty())
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util::split_string(cfg.runtime_binexec_args, cfg.binargs, " ");
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cfg.runtime_binexec_args.insert(cfg.runtime_binexec_args.begin(), (cfg.binary[0] == '/' ? cfg.binary : util::realpath(ctx.contract_dir + "/bin/" + cfg.binary)));
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// Populate runtime app bill args.
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if (!cfg.appbillargs.empty())
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util::split_string(cfg.runtime_appbill_args, cfg.appbillargs, " ");
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cfg.runtime_appbill_args.insert(cfg.runtime_appbill_args.begin(), (cfg.appbill[0] == '/' ? cfg.appbill : util::realpath(ctx.contract_dir + "/bin/" + cfg.appbill)));
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// Uncomment for docker-based execution.
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// std::string volumearg;
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// volumearg.append("type=bind,source=").append(ctx.state_dir).append(",target=/state");
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// const char *dockerargs[] = {"/usr/bin/docker", "run", "--rm", "-i", "--mount", volumearg.data(), cfg.binary.data()};
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// cfg.runtime_binexec_args.insert(cfg.runtime_binexec_args.begin(), std::begin(dockerargs), std::end(dockerargs));
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return 0;
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}
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/**
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* Decode current binary keys in 'cfg' and populate the it with hex keys.
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*
|
|
* @return Always returns 0.
|
|
*/
|
|
int binpair_to_hex(contract_config &cfg)
|
|
{
|
|
util::bin2hex(
|
|
cfg.pubkeyhex,
|
|
reinterpret_cast<const unsigned char *>(cfg.pubkey.data()),
|
|
cfg.pubkey.length());
|
|
|
|
util::bin2hex(
|
|
cfg.seckeyhex,
|
|
reinterpret_cast<const unsigned char *>(cfg.seckey.data()),
|
|
cfg.seckey.length());
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Validates the 'cfg' struct for invalid values.
|
|
*
|
|
* @return 0 for successful validation. -1 for failure.
|
|
*/
|
|
int validate_config(const contract_config &cfg)
|
|
{
|
|
// Check for non-empty signing keys.
|
|
// We also check for key pair validity as well in the below code.
|
|
if (cfg.pubkeyhex.empty() || cfg.seckeyhex.empty())
|
|
{
|
|
std::cout << "Signing keys missing. Run with 'rekey' to generate new keys.\n";
|
|
return -1;
|
|
}
|
|
|
|
// Other required fields.
|
|
|
|
bool fields_missing = false;
|
|
|
|
fields_missing |= cfg.binary.empty() && std::cout << "Missing cfg field: binary\n";
|
|
fields_missing |= cfg.peerport == 0 && std::cout << "Missing cfg field: peerport\n";
|
|
fields_missing |= cfg.roundtime == 0 && std::cout << "Missing cfg field: roundtime\n";
|
|
fields_missing |= cfg.pubport == 0 && std::cout << "Missing cfg field: pubport\n";
|
|
fields_missing |= cfg.loglevel.empty() && std::cout << "Missing cfg field: loglevel\n";
|
|
fields_missing |= cfg.loggers.empty() && std::cout << "Missing cfg field: loggers\n";
|
|
|
|
if (fields_missing)
|
|
{
|
|
std::cout << "Required configuration fields missing at " << ctx.config_file << std::endl;
|
|
return -1;
|
|
}
|
|
|
|
// Log settings
|
|
const std::unordered_set<std::string> valid_loglevels({"dbg", "inf", "wrn", "err"});
|
|
if (valid_loglevels.count(cfg.loglevel) != 1)
|
|
{
|
|
std::cout << "Invalid loglevel configured. Valid values: dbg|inf|wrn|err\n";
|
|
return -1;
|
|
}
|
|
|
|
const std::unordered_set<std::string> valid_loggers({"console", "file"});
|
|
for (const std::string &logger : cfg.loggers)
|
|
{
|
|
if (valid_loggers.count(logger) != 1)
|
|
{
|
|
std::cout << "Invalid logger. Valid values: console|file\n";
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
//Sign and verify a sample message to ensure we have a matching signing key pair.
|
|
const std::string msg = "hotpocket";
|
|
const std::string sighex = crypto::sign_hex(msg, cfg.seckeyhex);
|
|
if (crypto::verify_hex(msg, sighex, cfg.pubkeyhex) != 0)
|
|
{
|
|
std::cout << "Invalid signing keys. Run with 'rekey' to generate new keys.\n";
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Checks for the existence of all contract sub directories.
|
|
*
|
|
* @return 0 for successful validation. -1 for failure.
|
|
*/
|
|
int validate_contract_dir_paths()
|
|
{
|
|
const std::string paths[9] = {
|
|
ctx.contract_dir,
|
|
ctx.config_file,
|
|
ctx.hist_dir,
|
|
ctx.full_hist_dir,
|
|
ctx.state_dir,
|
|
ctx.tls_key_file,
|
|
ctx.tls_cert_file,
|
|
ctx.hpfs_exe_path,
|
|
ctx.hpws_exe_path};
|
|
|
|
for (const std::string &path : paths)
|
|
{
|
|
if (!util::is_file_exists(path) && !util::is_dir_exists(path))
|
|
{
|
|
if (path == ctx.tls_key_file || path == ctx.tls_cert_file)
|
|
{
|
|
std::cout << path << " does not exist. Please provide self-signed certificates. Can generate using command\n"
|
|
<< "openssl req -newkey rsa:2048 -new -nodes -x509 -days 3650 -keyout tlskey.pem -out tlscert.pem\n"
|
|
<< "and add it to " + ctx.config_dir << std::endl;
|
|
}
|
|
else if (path == ctx.hpfs_exe_path || path == ctx.hpws_exe_path)
|
|
{
|
|
std::cout << path << " binary does not exist.\n";
|
|
}
|
|
else
|
|
{
|
|
std::cout << path << " does not exist.\n";
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void change_operating_mode(const OPERATING_MODE mode)
|
|
{
|
|
// Do not allow to change the mode if the node was started as an observer.
|
|
if (startup_mode == OPERATING_MODE::OBSERVER || cfg.operating_mode == mode)
|
|
return;
|
|
|
|
cfg.operating_mode = mode;
|
|
|
|
if (mode == OPERATING_MODE::OBSERVER)
|
|
LOG_INFO << "Switched to OBSERVER mode.";
|
|
else
|
|
LOG_INFO << "Switched back to PROPOSER mode.";
|
|
}
|
|
|
|
/**
|
|
* Convert string to Log Severity enum type.
|
|
* @param severity log severity code.
|
|
* @return log severity type.
|
|
*/
|
|
LOG_SEVERITY get_loglevel_type(std::string_view severity)
|
|
{
|
|
if (severity == "dbg")
|
|
return LOG_SEVERITY::DEBUG;
|
|
else if (severity == "wrn")
|
|
return LOG_SEVERITY::WARN;
|
|
else if (severity == "inf")
|
|
return LOG_SEVERITY::INFO;
|
|
else
|
|
return LOG_SEVERITY::ERROR;
|
|
}
|
|
} // namespace conf
|