src/modules/m_httpd_stats.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include "inspircd.h"
  15 #include "users.h"
  16 #include "channels.h"
  17 #include "configreader.h"
  18 #include "modules.h"
  19 #include "inspsocket.h"
  20 #include "httpd.h"
  21
  22 /* $ModDesc: Provides statistics over HTTP via m_httpd.so */
  23
  24 typedef std::map<irc::string,int> StatsHash;
  25 typedef StatsHash::iterator StatsIter;
  26
  27 typedef std::vector<std::pair<int,irc::string> > SortedList;
  28 typedef SortedList::iterator SortedIter;
  29
  30 static StatsHash* sh = new StatsHash();
  31 static SortedList* so = new SortedList();
  32
  33 class ModuleHttpStats : public Module
  34 {
  35
  36         std::string stylesheet;
  37         bool changed;
  38
  39  public:
  40
  41         void ReadConfig()
  42         {
  43                 ConfigReader c(ServerInstance);
  44                 this->stylesheet = c.ReadValue("httpstats", "stylesheet", 0);
  45         }
  46
  47         ModuleHttpStats(InspIRCd* Me) : Module(Me)
  48         {
  49
  50                 ReadConfig();
  51                 this->changed = true;
  52         }
  53
  54         void InsertOrder(irc::string channel, int count)
  55         {
  56                 /* This function figures out where in the sorted list to put an item from the hash */
  57                 SortedIter a;
  58                 for (a = so->begin(); a != so->end(); a++)
  59                 {
  60                         /* Found an item equal to or less than, we insert our item before it */
  61                         if (a->first <= count)
  62                         {
  63                                 so->insert(a,std::pair<int,irc::string>(count,channel));
  64                                 return;
  65                         }
  66                 }
  67                 /* There are no items in the list yet, insert something at the beginning */
  68                 so->insert(so->begin(), std::pair<int,irc::string>(count,channel));
  69         }
  70
  71         void SortList()
  72         {
  73                 /* Sorts the hash into the sorted list using an insertion sort */
  74                 so->clear();
  75                 for (StatsIter a = sh->begin(); a != sh->end(); a++)
  76                         InsertOrder(a->first, a->second);
  77                 this->changed = false;
  78         }
  79
  80         void OnEvent(Event* event)
  81         {
  82                 std::stringstream data("");
  83
  84                 if (event->GetEventID() == "httpd_url")
  85                 {
  86                         HTTPRequest* http = (HTTPRequest*)event->GetData();
  87
  88                         if ((http->GetURI() == "/stats") || (http->GetURI() == "/stats/"))
  89                         {
  90                                 data << "<inspircdstats>";
  91
  92                                 data << "<server><name>" << ServerInstance->Config->ServerName << "</name><gecos>" << ServerInstance->Config->ServerDesc << "</gecos></server>";
  93
  94                                 data << "<general>";
  95                                 data << "<usercount>" << ServerInstance->clientlist->size() << "</usercount>";
  96                                 data << "<channelcount>" << ServerInstance->chanlist->size() << "</channelcount>";
  97                                 data << "<opercount>" << ServerInstance->all_opers.size() << "</opercount>";
  98                                 data << "<socketcount>" << (ServerInstance->SE->GetMaxFds() - ServerInstance->SE->GetRemainingFds()) << "</socketcount><socketmax>" << ServerInstance->SE->GetMaxFds() <<
  99                                         "</socketmax><socketengine>" << ServerInstance->SE->GetName() << "')</socketengine>";
 100                                 data << "</general>";
 101                                 data << "<modulelist>";
 102                                 for (int i = 0; i <= ServerInstance->GetModuleCount(); i++)
 103                                 {
 104                                         if (!ServerInstance->Config->module_names[i].empty())
 105                                                 data << "<module>" << ServerInstance->Config->module_names[i] << "</module>";
 106                                 }
 107                                 data << "</modulelist>";
 108
 109                                 data << "<channellist>";
 110                                 /* If the list has changed since last time it was displayed, re-sort it
 111                                  * this time only (not every time, as this would be moronic)
 112                                  */
 113                                 if (this->changed)
 114                                         this->SortList();
 115
 116                                 int n = 0;
 117                                 for (SortedIter a = so->begin(); ((a != so->end()) && (n < 25)); a++, n++)
 118                                 {
 119                                         chanrec* c = ServerInstance->FindChan(a->second.c_str());
 120                                         if (c && !c->IsModeSet('s') && !c->IsModeSet('p'))
 121                                         {
 122                                                 data << "<channel>";
 123                                                 data << "<usercount>" << c->GetUsers()->size() << "</usercount><channelname>" << c->name << "</channelname>";
 124                                                 data << "<channelops>" << c->GetOppedUsers()->size() << "</channelops>";
 125                                                 data << "<channelhalfops>" << c->GetHalfoppedUsers()->size() << "</channelhalfops>";
 126                                                 data << "<channelvoices>" << c->GetVoicedUsers()->size() << "</channelvoices>";
 127                                                 data << "<channeltopic>" << c->topic << "</channeltopic>";
 128                                                 data << "</channel>";
 129                                         }
 130                                 }
 131
 132                                 data << "</channellist>";
 133                                 data << "</inspircdstats>";
 134
 135                                 /* Send the document back to m_httpd */
 136                                 HTTPDocument response(http->sock, &data, 200, "X-Powered-By: m_http_stats.so\r\nContent-Type: text/xml\r\n");
 137                                 Request req((char*)&response, (Module*)this, event->GetSource());
 138                                 req.Send();
 139                         }
 140                 }
 141         }
 142
 143         void OnChannelDelete(chanrec* chan)
 144         {
 145                 StatsIter a = sh->find(chan->name);
 146                 if (a != sh->end())
 147                 {
 148                         sh->erase(a);
 149                 }
 150                 this->changed = true;
 151         }
 152
 153         void OnUserJoin(userrec* user, chanrec* channel, bool &silent)
 154         {
 155                 StatsIter a = sh->find(channel->name);
 156                 if (a != sh->end())
 157                 {
 158                         a->second++;
 159                 }
 160                 else
 161                 {
 162                         irc::string name = channel->name;
 163                         sh->insert(std::pair<irc::string,int>(name,1));
 164                 }
 165                 this->changed = true;
 166         }
 167
 168         void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage, bool &silent)
 169         {
 170                 StatsIter a = sh->find(channel->name);
 171                 if (a != sh->end())
 172                 {
 173                         a->second--;
 174                 }
 175                 this->changed = true;
 176         }
 177
 178         void OnUserQuit(userrec* user, const std::string &message, const std::string &oper_message)
 179         {
 180                 for (UCListIter v = user->chans.begin(); v != user->chans.end(); v++)
 181                 {
 182                         chanrec* c = v->first;
 183                         StatsIter a = sh->find(c->name);
 184                         if (a != sh->end())
 185                         {
 186                                 a->second--;
 187                         }
 188                 }
 189                 this->changed = true;
 190         }
 191
 192         char* OnRequest(Request* request)
 193         {
 194                 return NULL;
 195         }
 196
 197         void Implements(char* List)
 198         {
 199                 List[I_OnEvent] = List[I_OnRequest] = List[I_OnChannelDelete] = List[I_OnUserJoin] = List[I_OnUserPart] = List[I_OnUserQuit] = 1;
 200         }
 201
 202         virtual ~ModuleHttpStats()
 203         {
 204                 delete sh;
 205                 delete so;
 206         }
 207
 208         virtual Version GetVersion()
 209         {
 210                 return Version(1, 1, 0, 0, VF_VENDOR, API_VERSION);
 211         }
 212 };
 213
 214 MODULE_INIT(ModuleHttpStats)