src/modules/m_httpd_stats.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
   6  *   Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
   7  *   Copyright (C) 2006-2008 Craig Edwards <craigedwards@brainbox.cc>
   8  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   9  *
  10  * This file is part of InspIRCd.  InspIRCd is free software: you can
  11  * redistribute it and/or modify it under the terms of the GNU General Public
  12  * License as published by the Free Software Foundation, version 2.
  13  *
  14  * This program is distributed in the hope that it will be useful, but WITHOUT
  15  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  16  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  17  * details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23
  24 #include "inspircd.h"
  25 #include "modules/httpd.h"
  26 #include "xline.h"
  27 #include "protocol.h"
  28
  29 class ModuleHttpStats : public Module
  30 {
  31         static std::map<char, char const*> const &entities;
  32         HTTPdAPI API;
  33
  34  public:
  35         ModuleHttpStats()
  36                 : API(this)
  37         {
  38         }
  39
  40         std::string Sanitize(const std::string &str)
  41         {
  42                 std::string ret;
  43                 ret.reserve(str.length() * 2);
  44
  45                 for (std::string::const_iterator x = str.begin(); x != str.end(); ++x)
  46                 {
  47                         std::map<char, char const*>::const_iterator it = entities.find(*x);
  48
  49                         if (it != entities.end())
  50                         {
  51                                 ret += '&';
  52                                 ret += it->second;
  53                                 ret += ';';
  54                         }
  55                         else if (*x == 0x09 ||  *x == 0x0A || *x == 0x0D || ((*x >= 0x20) && (*x <= 0x7e)))
  56                         {
  57                                 // The XML specification defines the following characters as valid inside an XML document:
  58                                 // Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
  59                                 ret += *x;
  60                         }
  61                         else
  62                         {
  63                                 // If we reached this point then the string contains characters which can
  64                                 // not be represented in XML, even using a numeric escape. Therefore, we
  65                                 // Base64 encode the entire string and wrap it in a CDATA.
  66                                 ret.clear();
  67                                 ret += "<![CDATA[";
  68                                 ret += BinToBase64(str);
  69                                 ret += "]]>";
  70                                 break;
  71                         }
  72                 }
  73                 return ret;
  74         }
  75
  76         void DumpMeta(std::stringstream& data, Extensible* ext)
  77         {
  78                 data << "<metadata>";
  79                 for(Extensible::ExtensibleStore::const_iterator i = ext->GetExtList().begin(); i != ext->GetExtList().end(); i++)
  80                 {
  81                         ExtensionItem* item = i->first;
  82                         std::string value = item->serialize(FORMAT_USER, ext, i->second);
  83                         if (!value.empty())
  84                                 data << "<meta name=\"" << item->name << "\">" << Sanitize(value) << "</meta>";
  85                         else if (!item->name.empty())
  86                                 data << "<meta name=\"" << item->name << "\"/>";
  87                 }
  88                 data << "</metadata>";
  89         }
  90
  91         void OnEvent(Event& event) CXX11_OVERRIDE
  92         {
  93                 std::stringstream data("");
  94
  95                 if (event.id == "httpd_url")
  96                 {
  97                         ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Handling httpd event");
  98                         HTTPRequest* http = (HTTPRequest*)&event;
  99
 100                         if ((http->GetURI() == "/stats") || (http->GetURI() == "/stats/"))
 101                         {
 102                                 data << "<inspircdstats><server><name>" << ServerInstance->Config->ServerName << "</name><gecos>"
 103                                         << Sanitize(ServerInstance->Config->ServerDesc) << "</gecos><version>"
 104                                         << Sanitize(ServerInstance->GetVersionString()) << "</version></server>";
 105
 106                                 data << "<general>";
 107                                 data << "<usercount>" << ServerInstance->Users->clientlist->size() << "</usercount>";
 108                                 data << "<channelcount>" << ServerInstance->chanlist->size() << "</channelcount>";
 109                                 data << "<opercount>" << ServerInstance->Users->all_opers.size() << "</opercount>";
 110                                 data << "<socketcount>" << (ServerInstance->SE->GetUsedFds()) << "</socketcount><socketmax>" << ServerInstance->SE->GetMaxFds() << "</socketmax><socketengine>" INSPIRCD_SOCKETENGINE_NAME "</socketengine>";
 111
 112                                 time_t current_time = 0;
 113                                 current_time = ServerInstance->Time();
 114                                 time_t server_uptime = current_time - ServerInstance->startup_time;
 115                                 struct tm* stime;
 116                                 stime = gmtime(&server_uptime);
 117                                 data << "<uptime><days>" << stime->tm_yday << "</days><hours>" << stime->tm_hour << "</hours><mins>" << stime->tm_min << "</mins><secs>" << stime->tm_sec << "</secs><boot_time_t>" << ServerInstance->startup_time << "</boot_time_t></uptime>";
 118
 119                                 data << "<isupport>";
 120                                 const std::vector<std::string>& isupport = ServerInstance->ISupport.GetLines();
 121                                 for (std::vector<std::string>::const_iterator it = isupport.begin(); it != isupport.end(); it++)
 122                                 {
 123                                         data << Sanitize(*it) << std::endl;
 124                                 }
 125                                 data << "</isupport></general><xlines>";
 126                                 std::vector<std::string> xltypes = ServerInstance->XLines->GetAllTypes();
 127                                 for (std::vector<std::string>::iterator it = xltypes.begin(); it != xltypes.end(); ++it)
 128                                 {
 129                                         XLineLookup* lookup = ServerInstance->XLines->GetAll(*it);
 130
 131                                         if (!lookup)
 132                                                 continue;
 133                                         for (LookupIter i = lookup->begin(); i != lookup->end(); ++i)
 134                                         {
 135                                                 data << "<xline type=\"" << it->c_str() << "\"><mask>"
 136                                                         << Sanitize(i->second->Displayable()) << "</mask><settime>"
 137                                                         << i->second->set_time << "</settime><duration>" << i->second->duration
 138                                                         << "</duration><reason>" << Sanitize(i->second->reason)
 139                                                         << "</reason></xline>";
 140                                         }
 141                                 }
 142
 143                                 data << "</xlines><modulelist>";
 144                                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 145
 146                                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 147                                 {
 148                                         Version v = i->second->GetVersion();
 149                                         data << "<module><name>" << i->first << "</name><description>" << Sanitize(v.description) << "</description></module>";
 150                                 }
 151                                 data << "</modulelist><channellist>";
 152
 153                                 for (chan_hash::const_iterator a = ServerInstance->chanlist->begin(); a != ServerInstance->chanlist->end(); ++a)
 154                                 {
 155                                         Channel* c = a->second;
 156
 157                                         data << "<channel>";
 158                                         data << "<usercount>" << c->GetUsers()->size() << "</usercount><channelname>" << Sanitize(c->name) << "</channelname>";
 159                                         data << "<channeltopic>";
 160                                         data << "<topictext>" << Sanitize(c->topic) << "</topictext>";
 161                                         data << "<setby>" << Sanitize(c->setby) << "</setby>";
 162                                         data << "<settime>" << c->topicset << "</settime>";
 163                                         data << "</channeltopic>";
 164                                         data << "<channelmodes>" << Sanitize(c->ChanModes(true)) << "</channelmodes>";
 165                                         const UserMembList* ulist = c->GetUsers();
 166
 167                                         for (UserMembCIter x = ulist->begin(); x != ulist->end(); ++x)
 168                                         {
 169                                                 Membership* memb = x->second;
 170                                                 data << "<channelmember><uid>" << memb->user->uuid << "</uid><privs>"
 171                                                         << Sanitize(c->GetAllPrefixChars(x->first)) << "</privs><modes>"
 172                                                         << memb->modes << "</modes>";
 173                                                 DumpMeta(data, memb);
 174                                                 data << "</channelmember>";
 175                                         }
 176
 177                                         DumpMeta(data, c);
 178
 179                                         data << "</channel>";
 180                                 }
 181
 182                                 data << "</channellist><userlist>";
 183
 184                                 for (user_hash::const_iterator a = ServerInstance->Users->clientlist->begin(); a != ServerInstance->Users->clientlist->end(); ++a)
 185                                 {
 186                                         User* u = a->second;
 187
 188                                         data << "<user>";
 189                                         data << "<nickname>" << u->nick << "</nickname><uuid>" << u->uuid << "</uuid><realhost>"
 190                                                 << u->host << "</realhost><displayhost>" << u->dhost << "</displayhost><gecos>"
 191                                                 << Sanitize(u->fullname) << "</gecos><server>" << u->server << "</server>";
 192                                         if (u->IsAway())
 193                                                 data << "<away>" << Sanitize(u->awaymsg) << "</away><awaytime>" << u->awaytime << "</awaytime>";
 194                                         if (u->IsOper())
 195                                                 data << "<opertype>" << Sanitize(u->oper->name) << "</opertype>";
 196                                         data << "<modes>" << u->FormatModes() << "</modes><ident>" << Sanitize(u->ident) << "</ident>";
 197                                         LocalUser* lu = IS_LOCAL(u);
 198                                         if (lu)
 199                                                 data << "<port>" << lu->GetServerPort() << "</port><servaddr>"
 200                                                         << lu->server_sa.str() << "</servaddr>";
 201                                         data << "<ipaddress>" << u->GetIPString() << "</ipaddress>";
 202
 203                                         DumpMeta(data, u);
 204
 205                                         data << "</user>";
 206                                 }
 207
 208                                 data << "</userlist><serverlist>";
 209
 210                                 ProtocolInterface::ServerList sl;
 211                                 ServerInstance->PI->GetServerList(sl);
 212
 213                                 for (ProtocolInterface::ServerList::const_iterator b = sl.begin(); b != sl.end(); ++b)
 214                                 {
 215                                         data << "<server>";
 216                                         data << "<servername>" << b->servername << "</servername>";
 217                                         data << "<parentname>" << b->parentname << "</parentname>";
 218                                         data << "<gecos>" << b->gecos << "</gecos>";
 219                                         data << "<usercount>" << b->usercount << "</usercount>";
 220 // This is currently not implemented, so, commented out.
 221 //                                      data << "<opercount>" << b->opercount << "</opercount>";
 222                                         data << "<lagmillisecs>" << b->latencyms << "</lagmillisecs>";
 223                                         data << "</server>";
 224                                 }
 225
 226                                 data << "</serverlist></inspircdstats>";
 227
 228                                 /* Send the document back to m_httpd */
 229                                 HTTPDocumentResponse response(this, *http, &data, 200);
 230                                 response.headers.SetHeader("X-Powered-By", MODNAME);
 231                                 response.headers.SetHeader("Content-Type", "text/xml");
 232                                 API->SendResponse(response);
 233                         }
 234                 }
 235         }
 236
 237         Version GetVersion() CXX11_OVERRIDE
 238         {
 239                 return Version("Provides statistics over HTTP via m_httpd.so", VF_VENDOR);
 240         }
 241 };
 242
 243 static std::map<char, char const*> const &init_entities()
 244 {
 245         static std::map<char, char const*> entities;
 246         entities['<'] = "lt";
 247         entities['>'] = "gt";
 248         entities['&'] = "amp";
 249         entities['"'] = "quot";
 250         return entities;
 251 }
 252
 253 std::map<char, char const*> const &ModuleHttpStats::entities = init_entities ();
 254
 255 MODULE_INIT(ModuleHttpStats)