00001 /* 00002 * Copyright (C) 2007 Koen Deforche 00003 * 00004 * See the LICENSE file for terms of use. 00005 */ 00006 00007 #include "SimpleChatServer.h" 00008 00009 #include <iostream> 00010 #include <boost/lexical_cast.hpp> 00011 00012 using namespace Wt; 00013 00014 const WString ChatEvent::formattedHTML(const WString& user) const 00015 { 00016 switch (type_) { 00017 case Login: 00018 return "<span class='chat-info'>" 00019 + user_ + " joined the conversation.</span>"; 00020 case Logout: 00021 return "<span class='chat-info'>" 00022 + ((user == user_) ? "You" : user_) 00023 + " logged out.</span>"; 00024 case Message:{ 00025 WString result; 00026 00027 result = WString("<span class='") 00028 + ((user == user_) ? "chat-self" : "chat-user") 00029 + "'>" + user_ + ":</span>"; 00030 00031 if (message_.toUTF8().find(user.toUTF8()) != std::string::npos) 00032 return result + "<span class='chat-highlight'>" + message_ + "</span>"; 00033 else 00034 return result + message_; 00035 } 00036 default: 00037 return ""; 00038 } 00039 } 00040 00041 00042 SimpleChatServer::SimpleChatServer() 00043 { } 00044 00045 bool SimpleChatServer::login(const WString& user) 00046 { 00047 boost::mutex::scoped_lock lock(mutex_); 00048 00049 if (users_.find(user) == users_.end()) { 00050 users_.insert(user); 00051 00052 chatEvent.emit(ChatEvent(ChatEvent::Login, user)); 00053 00054 return true; 00055 } else 00056 return false; 00057 } 00058 00059 void SimpleChatServer::logout(const WString& user) 00060 { 00061 boost::mutex::scoped_lock lock(mutex_); 00062 00063 UserSet::iterator i = users_.find(user); 00064 00065 if (i != users_.end()) { 00066 users_.erase(i); 00067 00068 chatEvent.emit(ChatEvent(ChatEvent::Logout, user)); 00069 } 00070 } 00071 00072 WString SimpleChatServer::suggestGuest() 00073 { 00074 boost::mutex::scoped_lock lock(mutex_); 00075 00076 for (int i = 1;; ++i) { 00077 std::string s = "guest " + boost::lexical_cast<std::string>(i); 00078 WString ss = s; 00079 00080 if (users_.find(ss) == users_.end()) 00081 return ss; 00082 } 00083 } 00084 00085 void SimpleChatServer::sendMessage(const WString& user, const WString& message) 00086 { 00087 boost::mutex::scoped_lock lock(mutex_); 00088 00089 chatEvent.emit(ChatEvent(user, message)); 00090 } 00091 00092 SimpleChatServer::UserSet SimpleChatServer::users() 00093 { 00094 return users_; 00095 }