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-rw-r--r--src/modules/m_park.cpp309
1 files changed, 309 insertions, 0 deletions
diff --git a/src/modules/m_park.cpp b/src/modules/m_park.cpp
new file mode 100644
index 000000000..17c9430fc
--- /dev/null
+++ b/src/modules/m_park.cpp
@@ -0,0 +1,309 @@
+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
+ * E-mail:
+ * <brain@chatspike.net>
+ * <Craig@chatspike.net>
+ *
+ * Written by Craig Edwards, Craig McLure, and others.
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <string>
+#include <vector>
+#include "users.h"
+#include "channels.h"
+#include "modules.h"
+
+/* $ModDesc: Provides support for user parking/unparking */
+
+class awaymsg
+{
+ public:
+ std::string from;
+ std::string text;
+ time_t tm;
+};
+
+class parkedinfo
+{
+ public:
+ std::string nick;
+ std::string host;
+ time_t parktime;
+};
+
+Server *Srv;
+typedef std::vector<awaymsg> awaylog;
+typedef std::vector<parkedinfo> parkinfo;
+parkinfo pinfo;
+long ParkMaxTime;
+long ConcurrentParks;
+long ParkMaxMsgs;
+
+void handle_park(char **parameters, int pcnt, userrec *user)
+{
+ /** Parking. easy stuff.
+ *
+ * We duplicate and switch the users file descriptor, so that they can remain forever as a 'ghost'
+ * We then disconnect the real user leaving a controlled ghost in their place :)
+ */
+ int othersessions = 0;
+ if (pinfo.size())
+ for (parkinfo::iterator j = pinfo.begin(); j != pinfo.end(); j++)
+ if (j->host == std::string(user->host))
+ othersessions++;
+ if (othersessions >= ConcurrentParks)
+ {
+ Srv->SendServ(user->fd,"927 "+std::string(user->nick)+" :You are already parked up to the maximum number of allowed times.");
+ }
+ else
+ {
+ awaylog* aw;
+ parkedinfo pi;
+ char msg[MAXBUF];
+ long key = random() * 12345;
+ snprintf(msg,MAXBUF,"You are now parked. To unpark use /UNPARK %s %d",user->nick,key);
+ Srv->UserToPseudo(user,std::string(msg));
+ aw = new awaylog;
+ user->Extend("park_awaylog",(char*)aw);
+ user->Extend("park_key",(char*)key);
+ pi.nick = user->nick;
+ pi.host = user->host;
+ pi.parktime = time(NULL);
+ pinfo.push_back(pi);
+ }
+}
+
+void handle_parkstats(char **parameters, int pcnt, userrec *user)
+{
+ char status[MAXBUF];
+ snprintf(status,MAXBUF,"NOTICE %s :There are a total of %d parked clients on this server, with a maximum of %d parked sessions allowed per user.",user->nick,pinfo.size(),ConcurrentParks);
+ Srv->SendServ(user->fd,status);
+}
+
+void handle_unpark(char **parameters, int pcnt, userrec *user)
+{
+ /** Unparking. complicated stuff.
+ *
+ * Unparking is done in several steps:
+ *
+ * (1) Check if the user is parked
+ * (2) Check the key of the user against the one provided
+ * (3) Part the user who issued the command from all of their channels so as not to confuse clients
+ * (4) Remove all the users UMODEs
+ * (5) Duplicate and switch file descriptors on the two users, and disconnect the dead one
+ * (6) Force a nickchange onto the user who issued the command forcing them to change to the parked nick
+ * (7) Force join the user into all the channels the parked nick is currently in (send them localized join and namelist)
+ * (8) Send the user the umodes of their new 'persona'
+ * (9) Spool any awaylog messages to the user
+ *
+ * And there you have it, easy huh (NOT)...
+ */
+ userrec* unpark = Srv->FindNick(std::string(parameters[0]));
+ if (!unpark)
+ {
+ WriteServ(user->fd,"942 %s %s :Invalid user specified.",user->nick, parameters[0]);
+ return;
+ }
+ awaylog* awy = (awaylog*)unpark->GetExt("park_awaylog");
+ long key = (long)unpark->GetExt("park_key");
+ if (!awy)
+ {
+ WriteServ(user->fd,"943 %s %s :This user is not parked.",user->nick, unpark->nick);
+ return;
+ }
+ if (key == atoi(parameters[1]))
+ {
+ // first part the user from all chans theyre on, so things dont get messy
+ for (int i = 0; i != MAXCHANS; i++)
+ {
+ if (user->chans[i].channel != NULL)
+ {
+ if (user->chans[i].channel->name)
+ {
+ Srv->PartUserFromChannel(user,user->chans[i].channel->name,"Unparking");
+ }
+ }
+ }
+ // remove all their old modes
+ WriteServ(user->fd,"MODE %s -%s",user->nick,user->modes);
+ // now, map them to the parked user, while nobody can see :p
+ Srv->PseudoToUser(user,unpark,"Unparked to "+std::string(parameters[0]));
+ // set all their new modes
+ WriteServ(unpark->fd,"MODE %s +%s",unpark->nick,unpark->modes);
+ // spool their away log to them
+ WriteServ(unpark->fd,"NOTICE %s :*** You are now unparked. You have successfully taken back the nickname and privilages of %s.",unpark->nick,unpark->nick);
+ for (awaylog::iterator i = awy->begin(); i != awy->end(); i++)
+ {
+ char timebuf[MAXBUF];
+ tm *timeinfo = localtime(&i->tm);
+ strlcpy(timebuf,asctime(timeinfo),MAXBUF);
+ timebuf[strlen(timebuf)-1] = '\0';
+ WriteServ(unpark->fd,"NOTICE %s :From %s at %s: \2%s\2",unpark->nick,i->from.c_str(),timebuf,i->text.c_str());
+ }
+ delete awy;
+ unpark->Shrink("park_awaylog");
+ unpark->Shrink("park_key");
+ for (parkinfo::iterator j = pinfo.begin(); j != pinfo.end(); j++)
+ {
+ if (j->nick == std::string(unpark->nick))
+ {
+ pinfo.erase(j);
+ break;
+ }
+ }
+ }
+ else
+ {
+ Srv->SendServ(user->fd,"928 "+std::string(user->nick)+" :Incorrect park key.");
+ }
+}
+
+
+class ModulePark : public Module
+{
+ protected:
+ ConfigReader* Conf;
+ public:
+ virtual void ReadSettings()
+ {
+ Conf = new ConfigReader;
+ ParkMaxTime = Conf->ReadInteger("park","maxtime",0,true);
+ ConcurrentParks = Conf->ReadInteger("park","maxperip",0,true);
+ ParkMaxMsgs = Conf->ReadInteger("park","maxmessages",0,true);
+ delete Conf;
+ }
+
+ ModulePark()
+ {
+ Srv = new Server;
+ pinfo.clear();
+ Srv->AddCommand("PARK",handle_park,0,0,"m_park.so");
+ Srv->AddCommand("UNPARK",handle_unpark,0,2,"m_park.so");
+ Srv->AddCommand("PARKSTATS",handle_parkstats,'o',0,"m_park.so");
+ }
+
+ virtual ~ModulePark()
+ {
+ delete Srv;
+ }
+
+ virtual void OnRehash()
+ {
+ this->ReadSettings();
+ }
+
+ virtual void OnPrePrivmsg(userrec* user, userrec* dest, std::string text)
+ {
+ awaylog* awy = (awaylog*)dest->GetExt("park_awaylog");
+ if (awy)
+ {
+ if (awy->size() <= ParkMaxMsgs)
+ {
+ awaymsg am;
+ am.text = text;
+ am.from = user->GetFullHost();
+ am.tm = time(NULL);
+ awy->push_back(am);
+ Srv->SendServ(user->fd,"930 "+std::string(user->nick)+" :User "+std::string(dest->nick)+" is parked. Your message has been stored.");
+ }
+ else Srv->SendServ(user->fd,"929 "+std::string(user->nick)+" :User "+std::string(dest->nick)+" is parked, but their message queue is full. Message not saved.");
+ }
+ }
+
+ virtual int OnUserPreNick(userrec* user, std::string newnick)
+ {
+ // track nickchanges in our parked user list
+ // (this isnt too efficient, i'll tidy it up some time)
+ for (parkinfo::iterator j = pinfo.begin(); j != pinfo.end(); j++)
+ {
+ if (j->nick == std::string(user->nick))
+ {
+ j->nick = newnick;
+ break;
+ }
+ }
+ return 0;
+ }
+
+ virtual void OnBackgroundTimer(time_t curtime)
+ {
+ // look for parked clients which have timed out (this needs tidying)
+ if (pinfo.empty())
+ return;
+ bool go_again = true;
+ while (go_again)
+ {
+ go_again = false;
+ for (parkinfo::iterator j = pinfo.begin(); j != pinfo.end(); j++)
+ {
+ if (time(NULL) >= (j->parktime+ParkMaxTime))
+ {
+ userrec* thisnick = Srv->FindNick(j->nick);
+ if (thisnick)
+ Srv->QuitUser(thisnick,"PARK timeout");
+ pinfo.erase(j);
+ go_again = true;
+ break;
+ }
+ }
+ }
+ }
+
+ virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
+ {
+ if (target_type == TYPE_USER)
+ {
+ userrec* u = (userrec*)dest;
+ OnPrePrivmsg(user,u,text);
+ return 1;
+ }
+ return 0;
+ }
+
+ virtual void OnWhois(userrec* src, userrec* dst)
+ {
+ if (dst->GetExt("park_awaylog"))
+ Srv->SendTo(NULL,src,"335 "+std::string(src->nick)+" "+std::string(dst->nick)+" :is a parked client");
+ }
+
+ virtual Version GetVersion()
+ {
+ return Version(1,0,0,1,VF_VENDOR);
+ }
+
+};
+
+// stuff down here is the module-factory stuff. For basic modules you can ignore this.
+
+class ModuleParkFactory : public ModuleFactory
+{
+ public:
+ ModuleParkFactory()
+ {
+ }
+
+ ~ModuleParkFactory()
+ {
+ }
+
+ virtual Module * CreateModule()
+ {
+ return new ModulePark;
+ }
+
+};
+
+
+extern "C" void * init_module( void )
+{
+ return new ModuleParkFactory;
+}
+
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