source/client.cpp

   1 #include <msp/fs/dir.h>
   2 #include <msp/fs/stat.h>
   3 #include <msp/strings/format.h>
   4 #include "client.h"
   5 #include "xinema.h"
   6 #include "xinestream.h"
   7
   8 using namespace std;
   9 using namespace Msp;
  10
  11 Client::Client(Xinema &x, Net::StreamSocket *s):
  12         xinema(x),
  13         socket(s),
  14         stale(false)
  15 {
  16         socket->signal_data_available.connect(sigc::mem_fun(this, &Client::data_available));
  17         socket->signal_end_of_file.connect(sigc::mem_fun(this, &Client::end_of_stream));
  18
  19         xinema.signal_stream_created.connect(sigc::mem_fun(this, &Client::stream_created));
  20 }
  21
  22 void Client::data_available()
  23 {
  24         char rbuf[1024];
  25         unsigned len = socket->read(rbuf, sizeof(rbuf));
  26         buffer.append(rbuf, len);
  27
  28         string::size_type start = 0;
  29         while(1)
  30         {
  31                 string::size_type newline = buffer.find('\n', start);
  32                 if(newline==string::npos)
  33                         break;
  34
  35                 try
  36                 {
  37                         process_command(buffer.substr(start, newline-start));
  38                 }
  39                 catch(const exception &e)
  40                 {
  41                         send_reply(string("error ")+e.what());
  42                         return;
  43                 }
  44
  45                 start = newline+1;
  46         }
  47
  48         buffer.erase(0, start);
  49 }
  50
  51 void Client::end_of_stream()
  52 {
  53         stale = true;
  54 }
  55
  56 void Client::process_command(const string &cmd)
  57 {
  58         string::size_type space = cmd.find(' ');
  59         string keyword = cmd.substr(0, space);
  60         string args;
  61         if(space!=string::npos)
  62                 args = cmd.substr(space+1);
  63         if(keyword=="list_directory")
  64                 list_directory(args);
  65         else if(keyword=="play_file")
  66                 xinema.play_file(args);
  67         else
  68                 send_reply("error Invalid command");
  69 }
  70
  71 void Client::send_reply(const string &reply)
  72 {
  73         socket->write(reply);
  74         socket->put('\n');
  75 }
  76
  77 void Client::list_directory(const FS::Path &dn)
  78 {
  79         list<string> files = FS::list_files(dn);
  80
  81         send_reply("directory "+dn.str());
  82         for(list<string>::const_iterator i=files.begin(); i!=files.end(); ++i)
  83         {
  84                 if(FS::is_dir(dn / *i))
  85                         send_reply("subdir "+*i);
  86                 else
  87                         send_reply("file "+*i);
  88         }
  89 }
  90
  91 void Client::stream_created(XineStream &stream)
  92 {
  93         stream.signal_title_changed.connect(sigc::mem_fun(this, &Client::stream_title_changed));
  94         stream.signal_duration_changed.connect(sigc::mem_fun(this, &Client::stream_duration_changed));
  95         stream.signal_position_changed.connect(sigc::mem_fun(this, &Client::stream_position_changed));
  96         string title = stream.get_title();
  97         if(!title.empty())
  98                 send_reply("title "+title);
  99 }
 100
 101 void Client::stream_title_changed(const string &title)
 102 {
 103         send_reply("title "+title);
 104 }
 105
 106 void Client::stream_duration_changed(const Time::TimeDelta &dur)
 107 {
 108         send_reply(format("duration %.3f", dur/Time::sec));
 109 }
 110
 111 void Client::stream_position_changed(const Time::TimeDelta &pos)
 112 {
 113         if(abs(pos-last_position)>=Time::sec)
 114         {
 115                 send_reply(format("position %.3f", pos/Time::sec));
 116                 last_position = pos;
 117         }
 118 }