4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
6 // The contents of this file are subject to the Fraunhofer FOKUS Public License
7 // Version 1.0 (the "License"); you may not use this file except in compliance
8 // with the License. You may obtain a copy of the License at
9 // http://senf.berlios.de/license.html
11 // The Fraunhofer FOKUS Public License Version 1.0 is based on,
12 // but modifies the Mozilla Public License Version 1.1.
13 // See the full license text for the amendments.
15 // Software distributed under the License is distributed on an "AS IS" basis,
16 // WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
17 // for the specific language governing rights and limitations under the License.
19 // The Original Code is Fraunhofer FOKUS code.
21 // The Initial Developer of the Original Code is Fraunhofer-Gesellschaft e.V.
22 // (registered association), Hansastraße 27 c, 80686 Munich, Germany.
23 // All Rights Reserved.
26 // Stefan Bund <g0dil@berlios.de>
29 \brief Server non-inline non-template implementation */
32 //#include "Server.ih"
35 #include <boost/algorithm/string/trim.hpp>
36 #include <boost/bind.hpp>
37 #include <senf/Utils/membind.hh>
38 #include <senf/Utils/Logger/SenfLog.hh>
39 #include <senf/Version.hh>
40 #include "LineEditor.hh"
41 #include "ScopedDirectory.hh"
44 #include "ParsedCommand.hh"
46 //#include "Server.mpp"
48 //-/////////////////////////////////////////////////////////////////////////////////////////////////
51 # define BUILD_TYPE "development"
53 # define BUILD_TYPE "production"
57 senf::console::SysInfo::Proxy addSysInfo (
58 "SENF: The Simple and Extensible Network Framework\n"
59 " © 2006-2011 Fraunhofer Institute for Open Communication Systems, Network Research\n"
60 " Contact: senf-dev@lists.berlios.de\n"
61 " Version: " SENF_LIB_VERSION " Revision number: " SENF_REVISION "\n"
62 " Build-type: " BUILD_TYPE ", SenfLog compile time limit: " +
63 senf::str(senf::log::LEVELNAMES[senf::SenfLog::compileLimit::value]), 0);
66 //-/////////////////////////////////////////////////////////////////////////////////////////////////
67 // senf::console::detail::SocketStreamSink
69 prefix_ std::streamsize senf::console::detail::SocketStreamSink::write(const char * s,
72 // since handle is now non blocking we done check for writeable
74 // if (client_.handle().writeable()) {
75 std::string data (s, n);
83 //-/////////////////////////////////////////////////////////////////////////////////////////////////
84 // senf::console::Server
86 prefix_ senf::console::Server &
87 senf::console::Server::start(senf::INet4SocketAddress const & address)
89 senf::TCPv4ServerSocketHandle handle (address);
90 Server & server (senf::console::Server::start(handle));
91 SENF_LOG((Server::SENFLogArea)(log::NOTICE)(
92 "Console server started at " << address ));
96 prefix_ senf::console::Server &
97 senf::console::Server::start(senf::INet6SocketAddress const & address)
99 senf::TCPv6ServerSocketHandle handle (address);
100 Server & server (senf::console::Server::start(handle));
101 SENF_LOG((Server::SENFLogArea)(log::NOTICE)(
102 "Console server started at " << address ));
106 prefix_ senf::console::Server & senf::console::Server::start(ServerHandle handle)
108 boost::intrusive_ptr<Server> p (new Server(handle));
109 detail::ServerManager::add(boost::intrusive_ptr<Server>(p));
113 prefix_ senf::console::Server::Server(ServerHandle handle)
115 event_ ("senf::console::Server", senf::membind(&Server::newClient, this),
116 handle_, scheduler::FdEvent::EV_READ),
117 root_ (senf::console::root().thisptr()), mode_ (Automatic),
118 name_ (::program_invocation_short_name)
121 prefix_ void senf::console::Server::newClient(int event)
123 ServerHandle::ClientHandle client (handle_.accept());
124 boost::intrusive_ptr<Client> p (new Client(*this, client));
125 clients_.insert( p );
126 SENF_LOG(( "Registered new client " << client.peer() ));
129 prefix_ void senf::console::Server::removeClient(Client & client)
132 log << "Disposing client ";
134 log << client.handle().peer();
136 catch (senf::SystemException & ex) {
137 log << "(dead socket)";
140 // THIS DELETES THE CLIENT INSTANCE !!
141 clients_.erase(boost::intrusive_ptr<Client>(&client));
144 //-/////////////////////////////////////////////////////////////////////////////////////////////////
145 // senf::console::detail::DumbClientReader
147 prefix_ senf::console::detail::DumbClientReader::DumbClientReader(Client & client)
148 : ClientReader(client), promptLen_ (0), promptActive_ (false)
151 ReadHelper<ClientHandle>::dispatch( handle(), 16384u, ReadUntil("\n"),
152 senf::membind(&DumbClientReader::clientData, this) );
156 senf::console::detail::DumbClientReader::clientData(senf::ReadHelper<ClientHandle>::ptr helper)
158 if (helper->error() || handle().eof()) {
159 // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER stopClient RETURNS
165 promptActive_ = false;
167 std::string data (tail_ + helper->data());
168 tail_ = helper->tail();
169 boost::trim(data); // Gets rid of superfluous \r or \n characters
173 ReadHelper<ClientHandle>::dispatch( handle(), 16384u, ReadUntil("\n"),
174 senf::membind(&DumbClientReader::clientData, this) );
178 prefix_ void senf::console::detail::DumbClientReader::showPrompt()
180 std::string prompt (promptString());
183 stream() << std::flush;
184 promptLen_ = prompt.size();
185 promptActive_ = true;
189 prefix_ void senf::console::detail::DumbClientReader::v_disablePrompt()
191 if (promptActive_ && promptLen_ > 0) {
192 stream() << '\r' << std::string(' ', promptLen_) << '\r';
197 prefix_ void senf::console::detail::DumbClientReader::v_enablePrompt()
199 if (promptActive_ && ! promptLen_)
203 prefix_ void senf::console::detail::DumbClientReader::v_write(std::string const & data)
206 handle().write(data);
208 catch (senf::ExceptionMixin & ex) {
209 SENF_LOG(("unexpected failure writing to socket:" << ex.message()));
210 try { handle().facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD); }
213 catch (std::exception & ex) {
214 SENF_LOG(("unexpected failure writing to socket:" << ex.what()));
215 try { handle().facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD); }
219 SENF_LOG(("unexpected failure writing to socket: unknown exception"));
220 try { handle().facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD); }
225 prefix_ unsigned senf::console::detail::DumbClientReader::v_width()
231 //-/////////////////////////////////////////////////////////////////////////////////////////////////
232 // senf::console::detail::NoninteractiveClientReader
235 senf::console::detail::NoninteractiveClientReader::NoninteractiveClientReader(Client & client)
236 : ClientReader (client), streamBufferMaxSize_( 1024*1024),
237 readevent_ ("senf::console::detail::NoninteractiveClientReader",
238 senf::membind(&NoninteractiveClientReader::newData, this),
239 handle(), senf::scheduler::FdEvent::EV_READ),
240 writeevent_ ("senf::console::detail::NoninteractiveClientReader",
241 membind(&NoninteractiveClientReader::writeHandler, this), handle(),
242 scheduler::FdEvent::EV_WRITE, false)
245 prefix_ void senf::console::detail::NoninteractiveClientReader::v_disablePrompt()
248 prefix_ void senf::console::detail::NoninteractiveClientReader::v_enablePrompt()
251 prefix_ void senf::console::detail::NoninteractiveClientReader::streamBufferMaxSize(SendQueue::size_type size)
253 streamBufferMaxSize_ = size;
256 prefix_ senf::console::detail::NoninteractiveClientReader::SendQueue::size_type
257 senf::console::detail::NoninteractiveClientReader::streamBufferMaxSize()
260 return streamBufferMaxSize_;
263 prefix_ void senf::console::detail::NoninteractiveClientReader::v_write(std::string const & data)
265 if( sendQueue_.size() > streamBufferMaxSize_)
267 sendQueue_.insert( sendQueue_.end(), data.begin(), data.end());
268 writeHandler(scheduler::FdEvent::EV_WRITE);
269 if (! sendQueue_.empty())
270 writeevent_.enable();
274 prefix_ unsigned senf::console::detail::NoninteractiveClientReader::v_width()
281 senf::console::detail::NoninteractiveClientReader::newData(int event)
283 if (event != senf::scheduler::FdEvent::EV_READ || handle().eof()) {
284 if (! buffer_.empty())
285 handleInput(buffer_);
290 std::string::size_type n (buffer_.size());
291 buffer_.resize(n + handle().available());
292 buffer_.erase(handle().read(boost::make_iterator_range(buffer_.begin()+n, buffer_.end())),
294 buffer_.erase(0, handleInput(buffer_, true));
295 stream() << std::flush;
299 senf::console::detail::NoninteractiveClientReader::writeHandler(int event)
301 if (event != senf::scheduler::FdEvent::EV_WRITE) {
302 writeevent_.disable();
303 readevent_.disable();
304 try { handle().facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD); }
309 sendQueue_.erase(sendQueue_.begin(),
310 handle().write(boost::make_iterator_range(sendQueue_.begin(), sendQueue_.end())));
312 catch (senf::ExceptionMixin & ex) {
313 SENF_LOG(("unexpected failure writing to socket:" << ex.message()));
314 try { handle().facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD); }
317 catch (std::exception & ex) {
318 SENF_LOG(("unexpected failure writing to socket:" << ex.what()));
319 try { handle().facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD); }
323 SENF_LOG(("unexpected failure writing to socket: unknown exception"));
324 try { handle().facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD); }
327 if (sendQueue_.empty())
328 writeevent_.disable();
332 //-/////////////////////////////////////////////////////////////////////////////////////////////////
333 // senf::console::Client
335 prefix_ senf::console::Client::Client(Server & server, ClientHandle handle)
336 : out_t(boost::ref(*this)),
337 senf::log::IOStreamTarget("client-" + senf::str(handle.peer()), out_t::member),
338 server_ (server), handle_ (handle),
339 readevent_ ("senf::console::Client::interactive_check",
340 boost::bind(&Client::setNoninteractive,this),
341 handle, scheduler::FdEvent::EV_READ, false),
342 timer_ ("senf::console::Client::interactive_timer",
343 boost::bind(&Client::setInteractive, this),
344 scheduler::eventTime() + ClockService::milliseconds(INTERACTIVE_TIMEOUT),
346 name_ (server.name()), reader_ (), mode_ (server.mode())
348 handle_.facet<senf::TCPSocketProtocol>().nodelay(true);
349 handle_.blocking(false);
350 executor_.chroot(root());
352 case Server::Interactive :
355 case Server::Noninteractive :
358 case Server::Automatic :
365 prefix_ void senf::console::Client::setInteractive()
367 readevent_.disable();
369 mode_ = Server::Interactive;
370 reader_.reset(new detail::LineEditorSwitcher (*this));
371 executor_.autocd(true).autocomplete(true);
374 prefix_ void senf::console::Client::setNoninteractive()
376 readevent_.disable();
378 mode_ = Server::Noninteractive;
379 detail::NoninteractiveClientReader * newReader (new detail::NoninteractiveClientReader(*this));
380 reader_.reset( newReader);
381 consoleDir().add( "streamBuffer", senf::console::factory::Command( senf::membind(
382 SENF_MEMFNP( detail::NoninteractiveClientReader::SendQueue::size_type, detail::NoninteractiveClientReader, streamBufferMaxSize, () const ),
384 consoleDir().add( "streamBuffer", senf::console::factory::Command( senf::membind(
385 SENF_MEMFNP( void, detail::NoninteractiveClientReader, streamBufferMaxSize, (detail::NoninteractiveClientReader::SendQueue::size_type) ),
389 prefix_ std::string::size_type senf::console::Client::handleInput(std::string data,
392 std::string::size_type n (data.size());
396 n = parser_.parseIncremental(data, boost::bind<void>( boost::ref(executor_),
397 boost::ref(stream()),
400 parser_.parse(data, boost::bind<void>( boost::ref(executor_),
401 boost::ref(stream()),
404 catch (Executor::ExitException &) {
405 // This generates an EOF condition on the Handle. This EOF condition is expected to be
406 // handled gracefully by the ClientReader. We cannot call stop() here, since we are called
407 // from the client reader callback and that will continue executing after stop() has been
408 // called. stop() however will delete *this instance ... BANG ...
409 try { handle_.facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD); }
412 catch (std::exception & ex) {
413 std::string msg (ex.what());
414 std::string::size_type i (msg.find("-- \n"));
415 if (i != std::string::npos) {
416 backtrace_ = msg.substr(0,i);
417 msg = msg.substr(i+4);
420 stream() << msg << std::endl;
423 stream() << "unidentified error (unknown exception thrown)" << std::endl;
428 prefix_ void senf::console::Client::v_write(senf::log::time_type timestamp,
429 std::string const & stream,
430 std::string const & area, unsigned level,
431 std::string const & message)
433 reader_->disablePrompt();
434 IOStreamTarget::v_write(timestamp, stream, area, level, message);
435 out_t::member << std::flush;
436 reader_->enablePrompt();
439 prefix_ unsigned senf::console::Client::getWidth(std::ostream & os, unsigned defaultWidth,
442 unsigned rv (defaultWidth);
444 rv = get(os).width();
446 catch (std::bad_cast &) {}
447 return rv < minWidth ? defaultWidth : rv;
450 //-/////////////////////////////////////////////////////////////////////////////////////////////////
451 // senf::console::Client::SysBacktrace
452 prefix_ senf::console::Client::SysBacktrace::SysBacktrace()
454 sysdir().add("backtrace", factory::Command(&SysBacktrace::backtrace)
455 .doc("Display the backtrace of the last error / exception in this console") );
458 prefix_ void senf::console::Client::SysBacktrace::backtrace(std::ostream & os)
460 Client & client (Client::get(os));
461 if (client.backtrace().empty())
462 os << "(no backtrace)\n";
464 os << client.backtrace();
467 senf::console::Client::SysBacktrace senf::console::Client::SysBacktrace::instance_;
469 //-/////////////////////////////////////////////////////////////////////////////////////////////////
471 //#include "Server.mpp"
477 // comment-column: 40
478 // c-file-style: "senf"
479 // indent-tabs-mode: nil
480 // ispell-local-dictionary: "american"
481 // compile-command: "scons -u test"