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
  28 class ModuleHttpStats : public Module, public HTTPRequestEventListener
  29 {
  30         static const insp::flat_map<char, char const*>& entities;
  31         HTTPdAPI API;
  32
  33  public:
  34         ModuleHttpStats()
  35                 : HTTPRequestEventListener(this)
  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                         insp::flat_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         ModResult HandleRequest(HTTPRequest* http)
  92         {
  93                 std::stringstream data("");
  94
  95                 {
  96                         ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Handling httpd event");
  97
  98                         if ((http->GetURI() == "/stats") || (http->GetURI() == "/stats/"))
  99                         {
 100                                 data << "<inspircdstats><server><name>" << ServerInstance->Config->ServerName << "</name><gecos>"
 101                                         << Sanitize(ServerInstance->Config->ServerDesc) << "</gecos><version>"
 102                                         << Sanitize(ServerInstance->GetVersionString()) << "</version></server>";
 103
 104                                 data << "<general>";
 105                                 data << "<usercount>" << ServerInstance->Users->GetUsers().size() << "</usercount>";
 106                                 data << "<channelcount>" << ServerInstance->GetChans().size() << "</channelcount>";
 107                                 data << "<opercount>" << ServerInstance->Users->all_opers.size() << "</opercount>";
 108                                 data << "<socketcount>" << (SocketEngine::GetUsedFds()) << "</socketcount><socketmax>" << SocketEngine::GetMaxFds() << "</socketmax>";
 109                                 data << "<uptime><boot_time_t>" << ServerInstance->startup_time << "</boot_time_t></uptime>";
 110
 111                                 data << "<isupport>";
 112                                 const std::vector<Numeric::Numeric>& isupport = ServerInstance->ISupport.GetLines();
 113                                 for (std::vector<Numeric::Numeric>::const_iterator i = isupport.begin(); i != isupport.end(); ++i)
 114                                 {
 115                                         const Numeric::Numeric& num = *i;
 116                                         for (std::vector<std::string>::const_iterator j = num.GetParams().begin(); j != num.GetParams().end()-1; ++j)
 117                                                 data << "<token>" << Sanitize(*j) << "</token>" << std::endl;
 118                                 }
 119                                 data << "</isupport></general><xlines>";
 120                                 std::vector<std::string> xltypes = ServerInstance->XLines->GetAllTypes();
 121                                 for (std::vector<std::string>::iterator it = xltypes.begin(); it != xltypes.end(); ++it)
 122                                 {
 123                                         XLineLookup* lookup = ServerInstance->XLines->GetAll(*it);
 124
 125                                         if (!lookup)
 126                                                 continue;
 127                                         for (LookupIter i = lookup->begin(); i != lookup->end(); ++i)
 128                                         {
 129                                                 data << "<xline type=\"" << it->c_str() << "\"><mask>"
 130                                                         << Sanitize(i->second->Displayable()) << "</mask><settime>"
 131                                                         << i->second->set_time << "</settime><duration>" << i->second->duration
 132                                                         << "</duration><reason>" << Sanitize(i->second->reason)
 133                                                         << "</reason></xline>";
 134                                         }
 135                                 }
 136
 137                                 data << "</xlines><modulelist>";
 138                                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 139
 140                                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 141                                 {
 142                                         Version v = i->second->GetVersion();
 143                                         data << "<module><name>" << i->first << "</name><description>" << Sanitize(v.description) << "</description></module>";
 144                                 }
 145                                 data << "</modulelist><channellist>";
 146
 147                                 const chan_hash& chans = ServerInstance->GetChans();
 148                                 for (chan_hash::const_iterator i = chans.begin(); i != chans.end(); ++i)
 149                                 {
 150                                         Channel* c = i->second;
 151
 152                                         data << "<channel>";
 153                                         data << "<usercount>" << c->GetUsers().size() << "</usercount><channelname>" << Sanitize(c->name) << "</channelname>";
 154                                         data << "<channeltopic>";
 155                                         data << "<topictext>" << Sanitize(c->topic) << "</topictext>";
 156                                         data << "<setby>" << Sanitize(c->setby) << "</setby>";
 157                                         data << "<settime>" << c->topicset << "</settime>";
 158                                         data << "</channeltopic>";
 159                                         data << "<channelmodes>" << Sanitize(c->ChanModes(true)) << "</channelmodes>";
 160
 161                                         const Channel::MemberMap& ulist = c->GetUsers();
 162                                         for (Channel::MemberMap::const_iterator x = ulist.begin(); x != ulist.end(); ++x)
 163                                         {
 164                                                 Membership* memb = x->second;
 165                                                 data << "<channelmember><uid>" << memb->user->uuid << "</uid><privs>"
 166                                                         << Sanitize(memb->GetAllPrefixChars()) << "</privs><modes>"
 167                                                         << memb->modes << "</modes>";
 168                                                 DumpMeta(data, memb);
 169                                                 data << "</channelmember>";
 170                                         }
 171
 172                                         DumpMeta(data, c);
 173
 174                                         data << "</channel>";
 175                                 }
 176
 177                                 data << "</channellist><userlist>";
 178
 179                                 const user_hash& users = ServerInstance->Users->GetUsers();
 180                                 for (user_hash::const_iterator i = users.begin(); i != users.end(); ++i)
 181                                 {
 182                                         User* u = i->second;
 183
 184                                         data << "<user>";
 185                                         data << "<nickname>" << u->nick << "</nickname><uuid>" << u->uuid << "</uuid><realhost>"
 186                                                 << u->GetRealHost() << "</realhost><displayhost>" << u->GetDisplayedHost() << "</displayhost><gecos>"
 187                                                 << Sanitize(u->fullname) << "</gecos><server>" << u->server->GetName() << "</server>";
 188                                         if (u->IsAway())
 189                                                 data << "<away>" << Sanitize(u->awaymsg) << "</away><awaytime>" << u->awaytime << "</awaytime>";
 190                                         if (u->IsOper())
 191                                                 data << "<opertype>" << Sanitize(u->oper->name) << "</opertype>";
 192                                         data << "<modes>" << u->GetModeLetters().substr(1) << "</modes><ident>" << Sanitize(u->ident) << "</ident>";
 193                                         LocalUser* lu = IS_LOCAL(u);
 194                                         if (lu)
 195                                                 data << "<port>" << lu->GetServerPort() << "</port><servaddr>"
 196                                                         << lu->server_sa.str() << "</servaddr>";
 197                                         data << "<ipaddress>" << u->GetIPString() << "</ipaddress>";
 198
 199                                         DumpMeta(data, u);
 200
 201                                         data << "</user>";
 202                                 }
 203
 204                                 data << "</userlist><serverlist>";
 205
 206                                 ProtocolInterface::ServerList sl;
 207                                 ServerInstance->PI->GetServerList(sl);
 208
 209                                 for (ProtocolInterface::ServerList::const_iterator b = sl.begin(); b != sl.end(); ++b)
 210                                 {
 211                                         data << "<server>";
 212                                         data << "<servername>" << b->servername << "</servername>";
 213                                         data << "<parentname>" << b->parentname << "</parentname>";
 214                                         data << "<gecos>" << Sanitize(b->gecos) << "</gecos>";
 215                                         data << "<usercount>" << b->usercount << "</usercount>";
 216 // This is currently not implemented, so, commented out.
 217 //                                      data << "<opercount>" << b->opercount << "</opercount>";
 218                                         data << "<lagmillisecs>" << b->latencyms << "</lagmillisecs>";
 219                                         data << "</server>";
 220                                 }
 221
 222                                 data << "</serverlist><commandlist>";
 223
 224                                 const CommandParser::CommandMap& commands = ServerInstance->Parser.GetCommands();
 225                                 for (CommandParser::CommandMap::const_iterator i = commands.begin(); i != commands.end(); ++i)
 226                                 {
 227                                         data << "<command><name>" << i->second->name << "</name><usecount>" << i->second->use_count << "</usecount></command>";
 228                                 }
 229
 230                                 data << "</commandlist></inspircdstats>";
 231
 232                                 /* Send the document back to m_httpd */
 233                                 HTTPDocumentResponse response(this, *http, &data, 200);
 234                                 response.headers.SetHeader("X-Powered-By", MODNAME);
 235                                 response.headers.SetHeader("Content-Type", "text/xml");
 236                                 API->SendResponse(response);
 237                                 return MOD_RES_DENY; // Handled
 238                         }
 239                 }
 240                 return MOD_RES_PASSTHRU;
 241         }
 242
 243         ModResult OnHTTPRequest(HTTPRequest& req) CXX11_OVERRIDE
 244         {
 245                 return HandleRequest(&req);
 246         }
 247
 248         Version GetVersion() CXX11_OVERRIDE
 249         {
 250                 return Version("Provides statistics over HTTP via m_httpd", VF_VENDOR);
 251         }
 252 };
 253
 254 static const insp::flat_map<char, char const*>& init_entities()
 255 {
 256         static insp::flat_map<char, char const*> entities;
 257         entities['<'] = "lt";
 258         entities['>'] = "gt";
 259         entities['&'] = "amp";
 260         entities['"'] = "quot";
 261         return entities;
 262 }
 263
 264 const insp::flat_map<char, char const*>& ModuleHttpStats::entities = init_entities();
 265
 266 MODULE_INIT(ModuleHttpStats)