#include "Server.ih"
// Custom includes
-#include <unistd.h>
#include <iostream>
#include <boost/algorithm/string/trim.hpp>
#include <boost/iostreams/device/file_descriptor.hpp>
#include "../Utils/senfassert.hh"
#include "../Utils/membind.hh"
#include "../Utils/Logger/SenfLog.hh"
+#include "Readline.hh"
//#include "Server.mpp"
#define prefix_
std::streamsize n)
{
try {
- if (handle_.writeable())
- handle_.write(s, s+n);
+ if (client_.handle().writeable()) {
+ std::string data (s, n);
+ client_.translate(data);
+ client_.handle().write( data );
+ }
}
catch (SystemException & ex) {
;
return server;
}
-prefix_ boost::scoped_ptr<senf::console::Server> & senf::console::Server::instancePtr()
-{
- // We cannot make 'instance' a global or class-static variable, since it will then be destructed
- // at an unknown time which may fail if the scheduler or the file-handle pool allocators have
- // already been destructed.
- static boost::scoped_ptr<senf::console::Server> instance;
- return instance;
-}
-
prefix_ senf::console::Server & senf::console::Server::start(ServerHandle handle)
{
// Uah .... ensure the scheduler is created before the instance pointer so it get's destructed
// AFTER it.
(void) senf::Scheduler::instance();
- SENF_ASSERT( ! instancePtr() );
- instancePtr().reset(new Server(handle));
- return * instancePtr();
+ boost::intrusive_ptr<Server> p (new Server(handle));
+ detail::ServerManager::add(boost::intrusive_ptr<Server>(p));
+ return *p;
}
prefix_ senf::console::Server::Server(ServerHandle handle)
- : handle_ (handle)
-{
- Scheduler::instance().add( handle_, senf::membind(&Server::newClient, this) );
-}
-
-prefix_ senf::console::Server::~Server()
-{
- Scheduler::instance().remove(handle_);
-}
+ : handle_ (handle),
+ event_ ("console::Server", senf::membind(&Server::newClient, this),
+ handle_, scheduler::FdEvent::EV_READ),
+ root_ (senf::console::root().thisptr()), mode_ (Automatic)
+{}
-prefix_ void senf::console::Server::newClient(Scheduler::EventId event)
+prefix_ void senf::console::Server::newClient(int event)
{
ServerHandle::ClientSocketHandle client (handle_.accept());
- boost::intrusive_ptr<Client> p (new Client(*this, client, name_));
+ boost::intrusive_ptr<Client> p (new Client(*this, client));
clients_.insert( p );
SENF_LOG(( "Registered new client " << p.get() ));
}
}
///////////////////////////////////////////////////////////////////////////
-// senf::console::Client
+// senf::console::detail::DumbClientReader
-prefix_ senf::console::Client::Client(Server & server, ClientHandle handle,
- std::string const & name)
- : out_t(handle), senf::log::IOStreamTarget(out_t::member), server_ (server),
- handle_ (handle), name_ (name), promptLen_(0)
+prefix_ senf::console::detail::DumbClientReader::DumbClientReader(Client & client)
+ : ClientReader(client), promptLen_ (0), promptActive_ (false)
{
showPrompt();
- ReadHelper<ClientHandle>::dispatch( handle_, 16384u, ReadUntil("\n"),
- senf::membind(&Client::clientData, this) );
- route< senf::SenfLog, senf::log::NOTICE >();
+ ReadHelper<ClientHandle>::dispatch( handle(), 16384u, ReadUntil("\n"),
+ senf::membind(&DumbClientReader::clientData, this) );
}
-prefix_ senf::console::Client::~Client()
-{}
+prefix_ void
+senf::console::detail::DumbClientReader::clientData(senf::ReadHelper<ClientHandle>::ptr helper)
+{
+ if (helper->error() || handle().eof()) {
+ // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER stopClient RETURNS
+ stopClient();
+ return;
+ }
+
+ promptLen_ = 0;
+ promptActive_ = false;
+
+ std::string data (tail_ + helper->data());
+ tail_ = helper->tail();
+ boost::trim(data); // Gets rid of superfluous \r or \n characters
+ handleInput(data);
+
+ showPrompt();
+ ReadHelper<ClientHandle>::dispatch( handle(), 16384u, ReadUntil("\n"),
+ senf::membind(&DumbClientReader::clientData, this) );
-prefix_ void senf::console::Client::stopClient()
+}
+
+prefix_ void senf::console::detail::DumbClientReader::showPrompt()
{
- // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER removeClient RETURNS
- server_.removeClient(*this);
+ std::string prompt (promptString());
+
+ stream() << std::flush;
+ handle().write(prompt);
+ promptLen_ = prompt.size();
+ promptActive_ = true;
}
-prefix_ void senf::console::Client::clientData(ReadHelper<ClientHandle>::ptr helper)
+prefix_ void senf::console::detail::DumbClientReader::v_disablePrompt()
{
- promptLen_ = 0;
- if (helper->error() || handle_.eof()) {
- // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER stopClient RETURNS
+ if (promptActive_ && promptLen_ > 0) {
+ stream() << '\r' << std::string(' ', promptLen_) << '\r';
+ promptLen_ = 0;
+ }
+}
+
+prefix_ void senf::console::detail::DumbClientReader::v_enablePrompt()
+{
+ if (promptActive_ && ! promptLen_)
+ showPrompt();
+}
+
+prefix_ void senf::console::detail::DumbClientReader::v_translate(std::string & data)
+{}
+
+///////////////////////////////////////////////////////////////////////////
+// senf::console::detail::NoninteractiveClientReader
+
+prefix_
+senf::console::detail::NoninteractiveClientReader::NoninteractiveClientReader(Client & client)
+ : ClientReader (client),
+ readevent_ ("NoninteractiveClientReader",
+ senf::membind(&NoninteractiveClientReader::newData, this),
+ handle(), senf::Scheduler::EV_READ)
+{}
+
+prefix_ void senf::console::detail::NoninteractiveClientReader::v_disablePrompt()
+{}
+
+prefix_ void senf::console::detail::NoninteractiveClientReader::v_enablePrompt()
+{}
+
+prefix_ void senf::console::detail::NoninteractiveClientReader::v_translate(std::string & data)
+{}
+
+prefix_ void
+senf::console::detail::NoninteractiveClientReader::newData(int event)
+{
+ if (event != senf::Scheduler::EV_READ || handle().eof()) {
+ if (! buffer_.empty())
+ handleInput(buffer_);
stopClient();
return;
}
- std::string data (tail_ + helper->data());
- tail_ = helper->tail();
- boost::trim(data); // Gets rid of superfluous \r or \n characters
+ std::string::size_type n (buffer_.size());
+ buffer_.resize(n + handle().available());
+ buffer_.erase(handle().read(boost::make_iterator_range(buffer_.begin()+n, buffer_.end())),
+ buffer_.end());
+ buffer_.erase(0, handleInput(buffer_, true));
+ stream() << std::flush;
+}
+
+///////////////////////////////////////////////////////////////////////////
+// senf::console::Client
+
+prefix_ senf::console::Client::Client(Server & server, ClientHandle handle)
+ : out_t(boost::ref(*this)), senf::log::IOStreamTarget(out_t::member), server_ (server),
+ handle_ (handle),
+ readevent_ ("senf::console::Client", boost::bind(&Client::setNoninteractive,this),
+ handle, Scheduler::EV_READ, false),
+ timer_ ("senf::console::Client interactive timeout",
+ boost::bind(&Client::setInteractive, this),
+ Scheduler::instance().eventTime() + ClockService::milliseconds(INTERACTIVE_TIMEOUT),
+ false),
+ name_ (server.name()), reader_ (), mode_ (server.mode())
+{
+ handle_.facet<senf::TCPSocketProtocol>().nodelay();
+ executor_.chroot(root());
+ switch (mode_) {
+ case Server::Interactive :
+ setInteractive();
+ break;
+ case Server::Noninteractive :
+ setNoninteractive();
+ break;
+ case Server::Automatic :
+ readevent_.enable();
+ timer_.enable();
+ break;
+ }
+}
+
+prefix_ void senf::console::Client::setInteractive()
+{
+ readevent_.disable();
+ timer_.disable();
+ mode_ = Server::Interactive;
+ reader_.reset(new detail::SafeReadlineClientReader (*this));
+ executor_.autocd(true).autocomplete(true);
+}
+
+prefix_ void senf::console::Client::setNoninteractive()
+{
+ readevent_.disable();
+ timer_.disable();
+ mode_ = Server::Noninteractive;
+ reader_.reset(new detail::NoninteractiveClientReader(*this));
+}
+
+prefix_ void senf::console::Client::translate(std::string & data)
+{
+ reader_->translate(data);
+}
- if (data.empty())
+prefix_ std::string::size_type senf::console::Client::handleInput(std::string data,
+ bool incremental)
+{
+ if (data.empty() && ! incremental)
data = lastCommand_;
else
lastCommand_ = data;
+ bool state (true);
+ std::string::size_type n (data.size());
+
try {
- if (! parser_.parse(data, boost::bind<void>( boost::ref(executor_),
- boost::ref(out_t::member),
- _1 )) )
- out_t::member << "syntax error" << std::endl;
+ if (incremental)
+ n = parser_.parseIncremental(data, boost::bind<void>( boost::ref(executor_),
+ boost::ref(stream()),
+ _1 ));
+ else
+ state = parser_.parse(data, boost::bind<void>( boost::ref(executor_),
+ boost::ref(stream()),
+ _1 ));
+ if (! state )
+ stream() << "syntax error" << std::endl;
}
catch (Executor::ExitException &) {
- // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER stopClient RETURNS
- stopClient();
- return;
+ // This generates an EOF condition on the Handle. This EOF condition is expected
+ // to be handled gracefully by the ClientReader. We cannot call stop() here, since we
+ // are called from the client reader callback and that will continue executing even if we
+ // call stop here ...
+ handle_.facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD);
}
catch (std::exception & ex) {
- out_t::member << ex.what() << std::endl;
+ stream() << ex.what() << std::endl;
}
catch (...) {
- out_t::member << "unidentified error (unknown exception thrown)" << std::endl;
+ stream() << "unidentified error (unknown exception thrown)" << std::endl;
}
-
- showPrompt();
- ReadHelper<ClientHandle>::dispatch( handle_, 16384u, ReadUntil("\n"),
- senf::membind(&Client::clientData, this) );
-}
-
-prefix_ void senf::console::Client::showPrompt()
-{
- std::string path (executor_.cwd().path());
- out_t::member << name_ << ":" << path << "# " << std::flush;
- promptLen_ = name_.size() + 1 + path.size() + 1;
+ return n;
}
-prefix_ void senf::console::Client::v_write(boost::posix_time::ptime timestamp,
+prefix_ void senf::console::Client::v_write(senf::log::time_type timestamp,
std::string const & stream,
std::string const & area, unsigned level,
std::string const & message)
{
- if (promptLen_)
- out_t::member << '\r' << std::string(' ', promptLen_) << '\r';
+ reader_->disablePrompt();
IOStreamTarget::v_write(timestamp, stream, area, level, message);
- if (promptLen_)
- showPrompt();
+ out_t::member << std::flush;
+ reader_->enablePrompt();
+}
+
+prefix_ std::ostream & senf::console::operator<<(std::ostream & os, Client const & client)
+{
+ typedef ClientSocketHandle< MakeSocketPolicy<
+ INet4AddressingPolicy,ConnectedCommunicationPolicy>::policy > V4Socket;
+ typedef ClientSocketHandle< MakeSocketPolicy<
+ INet6AddressingPolicy,ConnectedCommunicationPolicy>::policy > V6Socket;
+
+ try {
+ if (check_socket_cast<V4Socket>(client.handle()))
+ os << dynamic_socket_cast<V4Socket>(client.handle()).peer();
+ else if (check_socket_cast<V6Socket>(client.handle()))
+ os << dynamic_socket_cast<V6Socket>(client.handle()).peer();
+ else
+ os << static_cast<void const *>(&client);
+ }
+ catch (SystemException &) {
+ os << "0.0.0.0:0";
+ }
+
+ return os;
+}
+
+prefix_ std::ostream & senf::console::operator<<(std::ostream & os, Client * client)
+{
+ return os << *client;
}
///////////////////////////////cc.e////////////////////////////////////////
projects / senf.git / blobdiff