spectrum2/spectrum_manager/src/main.cpp

361 lines
11 KiB
C++

#include "managerconfig.h"
#include "transport/config.h"
#include "Swiften/Swiften.h"
#include "Swiften/EventLoop/SimpleEventLoop.h"
#include <boost/foreach.hpp>
#include <iostream>
#include <fstream>
#include <iterator>
#include <algorithm>
#include <boost/filesystem.hpp>
#include "signal.h"
#include "sys/wait.h"
using namespace Transport;
using namespace boost::filesystem;
using namespace boost;
static int finished;
static std::string *m;
static void handleDisconnected(Swift::Client *client, const boost::optional<Swift::ClientError> &, const std::string &server) {
std::cout << "[ DISCONNECTED ] " << server << "\n";
if (--finished == 0) {
exit(0);
}
}
static void handleConnected(Swift::Client *client, const std::string &server) {
boost::shared_ptr<Swift::Message> message(new Swift::Message());
message->setTo(server);
message->setFrom(client->getJID());
message->setBody(*m);
client->sendMessage(message);
}
static void handleMessageReceived(Swift::Client *client, Swift::Message::ref message, const std::string &server) {
std::string body = message->getBody();
boost::replace_all(body, "\n", "\n[ OK ] " + server + ": ");
std::cout << "[ OK ] " << server << ": " << body << "\n";
if (--finished == 0) {
exit(0);
}
}
static std::string searchForBinary(const std::string &binary) {
std::vector<std::string> path_list;
char * env_path = getenv("PATH");
if (env_path != NULL) {
std::string buffer = "";
for (int s = 0; s < strlen(env_path); s++) {
if (env_path[s] == ':') {
path_list.insert(path_list.end(), std::string(buffer));
buffer = "";
}
else {
buffer += env_path[s];
}
}
if (buffer != "") {
path_list.insert(path_list.end(), std::string(buffer));
buffer = "";
}
for (std::vector<std::string>::iterator dit = path_list.begin(); dit < path_list.end(); dit++) {
std::string bpath = *dit;
bpath += "/";
bpath += binary;
path p(bpath);
if (exists(p) && !is_directory(p)) {
return bpath;
}
}
}
return "";
}
// Executes new backend
static unsigned long exec_(std::string path, std::string config, std::string jid = "") {
// fork and exec
pid_t pid = fork();
if ( pid == 0 ) {
// child process
if (jid.empty()) {
exit(execl(path.c_str(), path.c_str(), config.c_str(), NULL));
}
else {
exit(execl(path.c_str(), path.c_str(), "-j", jid.c_str(), config.c_str(), NULL));
}
} else if ( pid < 0 ) {
// fork failed
}
else {
waitpid(pid, 0, 0);
}
return (unsigned long) pid;
}
static int isRunning(const std::string &pidfile) {
path p(pidfile);
if (!exists(p) || is_directory(p)) {
return 0;
}
std::ifstream f(p.string().c_str(), std::ios_base::in);
std::string pid;
f >> pid;
if (pid.empty())
return 0;
if (kill(boost::lexical_cast<int>(pid), 0) != 0)
return 0;
return boost::lexical_cast<int>(pid);
}
static void start_all_instances(ManagerConfig *config) {
path p(CONFIG_STRING(config, "service.config_directory"));
try {
if (!exists(p)) {
std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
exit(6);
}
if (!is_directory(p)) {
std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
exit(7);
}
std::string spectrum2_binary = searchForBinary("spectrum2");
if (spectrum2_binary.empty()) {
std::cerr << "spectrum2 binary not found in PATH\n";
exit(8);
}
directory_iterator end_itr;
for (directory_iterator itr(p); itr != end_itr; ++itr) {
if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
Config cfg;
if (cfg.load(itr->path().string()) == false) {
std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
continue;
}
std::vector<std::string> vhosts;
if (CONFIG_HAS_KEY(&cfg, "vhosts.vhost"))
vhosts = CONFIG_VECTOR(&cfg, "vhosts.vhost");
vhosts.push_back(CONFIG_STRING(&cfg, "service.jid"));
BOOST_FOREACH(std::string &vhost, vhosts) {
Config vhostCfg;
if (vhostCfg.load(itr->path().string(), vhost) == false) {
std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
continue;
}
int pid = isRunning(CONFIG_STRING(&vhostCfg, "service.pidfile"));
if (pid == 0) {
std::cout << "Starting " << itr->path() << ": OK\n";
exec_(spectrum2_binary, itr->path().string(), vhost);
}
else {
std::cout << "Starting " << itr->path() << ": Already started (PID=" << pid << ")\n";
}
}
}
}
}
catch (const filesystem_error& ex) {
std::cerr << "boost filesystem error\n";
exit(5);
}
}
static void stop_all_instances(ManagerConfig *config) {
path p(CONFIG_STRING(config, "service.config_directory"));
try {
if (!exists(p)) {
std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
exit(6);
}
if (!is_directory(p)) {
std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
exit(7);
}
directory_iterator end_itr;
for (directory_iterator itr(p); itr != end_itr; ++itr) {
if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
Config cfg;
if (cfg.load(itr->path().string()) == false) {
std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
}
std::vector<std::string> vhosts;
if (CONFIG_HAS_KEY(&cfg, "vhosts.vhost"))
vhosts = CONFIG_VECTOR(&cfg, "vhosts.vhost");
vhosts.push_back(CONFIG_STRING(&cfg, "service.jid"));
BOOST_FOREACH(std::string &vhost, vhosts) {
Config vhostCfg;
if (vhostCfg.load(itr->path().string(), vhost) == false) {
std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
continue;
}
int pid = isRunning(CONFIG_STRING(&vhostCfg, "service.pidfile"));
if (pid) {
std::cout << "Stopping " << itr->path() << ": OK\n";
kill(pid, SIGTERM);
}
else {
std::cout << "Stopping " << itr->path() << ": Not running\n";
}
}
}
}
}
catch (const filesystem_error& ex) {
std::cerr << "boost filesystem error\n";
exit(5);
}
}
void ask_local_servers(ManagerConfig *config, Swift::BoostNetworkFactories &networkFactories, const std::string &message) {
path p(CONFIG_STRING(config, "service.config_directory"));
try {
if (!exists(p)) {
std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
exit(6);
}
if (!is_directory(p)) {
std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
exit(7);
}
directory_iterator end_itr;
for (directory_iterator itr(p); itr != end_itr; ++itr) {
if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
Config cfg;
if (cfg.load(itr->path().string()) == false) {
std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
}
finished++;
Swift::Client *client = new Swift::Client(CONFIG_STRING(&cfg, "service.admin_username"), CONFIG_STRING(&cfg, "service.admin_password"), &networkFactories);
client->setAlwaysTrustCertificates();
client->onConnected.connect(boost::bind(&handleConnected, client, CONFIG_STRING(&cfg, "service.jid")));
client->onDisconnected.connect(bind(&handleDisconnected, client, _1, CONFIG_STRING(&cfg, "service.jid")));
client->onMessageReceived.connect(bind(&handleMessageReceived, client, _1, CONFIG_STRING(&cfg, "service.jid")));
Swift::ClientOptions opt;
opt.allowPLAINWithoutTLS = true;
client->connect(opt);
}
}
}
catch (const filesystem_error& ex) {
std::cerr << "boost filesystem error\n";
exit(5);
}
}
int main(int argc, char **argv)
{
ManagerConfig config;
std::string config_file;
std::string command;
boost::program_options::variables_map vm;
boost::program_options::options_description desc("Usage: spectrum [OPTIONS] <COMMAND>\nCommands:\n"
" start - start all local Spectrum2 instances\n"
" stop - stop all local Spectrum2 instances\n"
" <other> - send command to all local + remote Spectrum2 instances and print output\n"
"Allowed options");
desc.add_options()
("help,h", "Show help output")
("config,c", boost::program_options::value<std::string>(&config_file)->default_value("/etc/spectrum2/spectrum_manager.cfg"), "Spectrum manager config file")
("command", boost::program_options::value<std::string>(&command)->default_value(""), "Command")
;
try
{
boost::program_options::positional_options_description p;
p.add("command", -1);
boost::program_options::store(boost::program_options::command_line_parser(argc, argv).
options(desc).positional(p).run(), vm);
boost::program_options::notify(vm);
if(vm.count("help"))
{
std::cout << desc << "\n";
return 1;
}
}
catch (std::runtime_error& e)
{
std::cout << desc << "\n";
return 2;
}
catch (...)
{
std::cout << desc << "\n";
return 3;
}
if (!config.load(config_file)) {
std::cerr << "Can't load configuration file.\n";
return 4;
}
if (command.empty()) {
std::cout << desc << "\n";
return 1;
}
if (command == "start") {
start_all_instances(&config);
}
else if (command == "stop") {
stop_all_instances(&config);
}
else {
Swift::SimpleEventLoop eventLoop;
Swift::BoostNetworkFactories networkFactories(&eventLoop);
std::string message = command;
m = &message;
ask_local_servers(&config, networkFactories, message);
std::vector<std::string> servers = CONFIG_VECTOR(&config, "servers.server");
for (std::vector<std::string>::const_iterator it = servers.begin(); it != servers.end(); it++) {
finished++;
Swift::Client *client = new Swift::Client(CONFIG_STRING(&config, "service.admin_username") + "@" + *it, CONFIG_STRING(&config, "service.admin_password"), &networkFactories);
client->setAlwaysTrustCertificates();
client->onConnected.connect(boost::bind(&handleConnected, client, *it));
client->onDisconnected.connect(bind(&handleDisconnected, client, _1, *it));
client->onMessageReceived.connect(bind(&handleMessageReceived, client, _1, *it));
Swift::ClientOptions opt;
opt.allowPLAINWithoutTLS = true;
client->connect(opt);
// std::cout << *it << "\n";
}
eventLoop.run();
}
}