* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
+ * InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
+#include "xline.h"
+
class FilterResult : public classbase
{
public:
+ std::string freeform;
std::string reason;
std::string action;
+ long gline_time;
- FilterResult(const std::string &rea, const std::string &act) : reason(rea), action(act)
+ FilterResult(const std::string free, const std::string &rea, const std::string &act, long gt) : freeform(free), reason(rea), action(act), gline_time(gt)
{
}
}
};
+class cmd_filter;
+
class FilterBase : public Module
-{
+{
+ cmd_filter* filtcommand;
public:
- FilterBase(InspIRCd* Me)
- : Module::Module(Me)
- {
- }
-
- virtual ~FilterBase()
+ FilterBase(InspIRCd* Me, const std::string &source);
+ virtual ~FilterBase();
+ virtual void Implements(char* List);
+ virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list);
+ virtual FilterResult* FilterMatch(const std::string &text) = 0;
+ virtual bool DeleteFilter(const std::string &freeform) = 0;
+ virtual void SyncFilters(Module* proto, void* opaque) = 0;
+ virtual void SendFilter(Module* proto, void* opaque, FilterResult* iter);
+ virtual std::pair<bool, std::string> AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration) = 0;
+ virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list);
+ virtual void OnRehash(userrec* user, const std::string ¶meter);
+ virtual Version GetVersion();
+ std::string EncodeFilter(FilterResult* filter);
+ FilterResult DecodeFilter(const std::string &data);
+ virtual void OnSyncOtherMetaData(Module* proto, void* opaque);
+ virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata);
+ virtual int OnStats(char symbol, userrec* user, string_list &results) = 0;
+ virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line);
+};
+
+class cmd_filter : public command_t
+{
+ FilterBase* Base;
+ public:
+ cmd_filter(FilterBase* f, InspIRCd* Me, const std::string &source) : command_t(Me, "FILTER", 'o', 1), Base(f)
{
+ this->source = source;
+ this->syntax = "<filter-definition> <type> [<gline-duration>] :<reason>";
}
- virtual void Implements(char* List)
+ CmdResult Handle(const char** parameters, int pcnt, userrec *user)
{
- List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1;
+ if (pcnt == 1)
+ {
+ /* Deleting a filter */
+ if (Base->DeleteFilter(parameters[0]))
+ {
+ user->WriteServ("NOTICE %s :*** Deleted filter '%s'", user->nick, parameters[0]);
+ return CMD_SUCCESS;
+ }
+ else
+ {
+ user->WriteServ("NOTICE %s :*** Filter '%s' not found on list.", user->nick, parameters[0]);
+ return CMD_FAILURE;
+ }
+ }
+ else
+ {
+ /* Adding a filter */
+ if (pcnt >= 3)
+ {
+ std::string freeform = parameters[0];
+ std::string type = parameters[1];
+ std::string reason;
+ long duration = 0;
+
+ if ((type != "gline") && (type != "none") && (type != "block") && (type != "kill"))
+ {
+ user->WriteServ("NOTICE %s :*** Invalid filter type '%s'. Supported types are 'gline', 'none', 'block', and 'kill'.", user->nick, freeform.c_str());
+ return CMD_FAILURE;
+ }
+
+ if (type == "gline")
+ {
+ if (pcnt >= 4)
+ {
+ duration = ServerInstance->Duration(parameters[2]);
+ reason = parameters[3];
+ }
+ else
+ {
+ this->TooFewParams(user, " When setting a gline type filter, a gline duration must be specified as the third parameter.");
+ return CMD_FAILURE;
+ }
+ }
+ else
+ {
+ reason = parameters[2];
+ }
+ std::pair<bool, std::string> result = Base->AddFilter(freeform, type, reason, duration);
+ if (result.first)
+ {
+ user->WriteServ("NOTICE %s :*** Added filter '%s', type '%s'%s%s, reason: '%s'", user->nick, freeform.c_str(),
+ type.c_str(), (duration ? " duration: " : ""), (duration ? parameters[2] : ""),
+ reason.c_str());
+ return CMD_SUCCESS;
+ }
+ else
+ {
+ user->WriteServ("NOTICE %s :*** Filter '%s' could not be added: %s", user->nick, freeform.c_str(), result.second.c_str());
+ return CMD_FAILURE;
+ }
+ }
+ else
+ {
+ this->TooFewParams(user, ".");
+ return CMD_FAILURE;
+ }
+
+ }
}
- virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status)
+ void TooFewParams(userrec* user, const std::string &extra_text)
{
- return OnUserPreNotice(user,dest,target_type,text,status);
+ user->WriteServ("NOTICE %s :*** Not enough parameters%s", user->nick, extra_text.c_str());
}
+};
- /* This must be implemented by the module which uses the header */
- virtual FilterResult* FilterMatch(const std::string &text) = 0;
+FilterBase::FilterBase(InspIRCd* Me, const std::string &source) : Module::Module(Me)
+{
+ filtcommand = new cmd_filter(this, Me, source);
+ ServerInstance->AddCommand(filtcommand);
+}
+
+FilterBase::~FilterBase()
+{
+}
+
+void FilterBase::Implements(char* List)
+{
+ List[I_OnPreCommand] = List[I_OnStats] = List[I_OnSyncOtherMetaData] = List[I_OnDecodeMetaData] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1;
+}
- virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
+int FilterBase::OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
+{
+ return OnUserPreNotice(user,dest,target_type,text,status,exempt_list);
+}
+
+int FilterBase::OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
+{
+ /* Leave ulines alone */
+ if ((ServerInstance->ULine(user->server)) || (!IS_LOCAL(user)))
+ return 0;
+
+ FilterResult* f = this->FilterMatch(text);
+ if (f)
{
- FilterResult* f = this->FilterMatch(text);
- if (f)
+ std::string target = "";
+ if (target_type == TYPE_USER)
+ {
+ userrec* t = (userrec*)dest;
+ target = std::string(t->nick);
+ }
+ else if (target_type == TYPE_CHANNEL)
+ {
+ chanrec* t = (chanrec*)dest;
+ target = std::string(t->name);
+ }
+ if (f->action == "block")
+ {
+ ServerInstance->WriteOpers(std::string("FILTER: ")+user->nick+" had their notice filtered, target was "+target+": "+f->reason);
+ user->WriteServ("NOTICE "+std::string(user->nick)+" :Your notice has been filtered and opers notified: "+f->reason);
+ }
+ ServerInstance->Log(DEFAULT,"FILTER: "+std::string(user->nick)+std::string(" had their notice filtered, target was ")+target+": "+f->reason+" Action: "+f->action);
+ if (f->action == "kill")
+ {
+ userrec::QuitUser(ServerInstance,user,"Filtered: "+f->reason);
+ }
+ if (f->action == "gline")
{
- std::string target = "";
- if (target_type == TYPE_USER)
+ if (ServerInstance->XLines->add_gline(f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), user->MakeHostIP()))
{
- userrec* t = (userrec*)dest;
- target = std::string(t->nick);
+ ServerInstance->XLines->apply_lines(APPLY_GLINES);
+ FOREACH_MOD(I_OnAddGLine,OnAddGLine(f->gline_time, NULL, f->reason, user->MakeHostIP()));
}
- else if (target_type == TYPE_CHANNEL)
+ }
+ return 1;
+ }
+ return 0;
+}
+
+int FilterBase::OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
+{
+ if ((validated == 1) && (IS_LOCAL(user)))
+ {
+ std::string checkline;
+ int replacepoint = 0;
+ bool parting = false;
+
+ if (command == "QUIT")
+ {
+ /* QUIT with no reason: nothing to do */
+ if (pcnt < 1)
+ return 0;
+
+ checkline = parameters[0];
+ replacepoint = 0;
+ parting = false;
+ }
+ else if (command == "PART")
+ {
+ /* PART with no reason: nothing to do */
+ if (pcnt < 2)
+ return 0;
+
+ checkline = parameters[1];
+ replacepoint = 1;
+ parting = true;
+ }
+ else
+ /* We're only messing with PART and QUIT */
+ return 0;
+
+ FilterResult* f = this->FilterMatch(checkline);
+
+ if (!f)
+ /* PART or QUIT reason doesnt match a filter */
+ return 0;
+
+ ServerInstance->Log(DEBUG,"Match block text");
+
+ /* We cant block a part or quit, so instead we change the reason to 'Reason filtered' */
+ command_t* c = ServerInstance->Parser->GetHandler(command);
+ if (c)
+ {
+ ServerInstance->Log(DEBUG,"Found handler");
+
+ const char* params[127];
+ for (int item = 0; item < pcnt; item++)
+ params[item] = parameters[item];
+ params[replacepoint] = "Reason filtered";
+
+ /* We're blocking, OR theyre quitting and its a KILL action
+ * (we cant kill someone whos already quitting, so filter them anyway)
+ */
+ if ((f->action == "block") || (((!parting) && (f->action == "kill"))))
{
- chanrec* t = (chanrec*)dest;
- target = std::string(t->name);
- }
- if (f->action == "block")
- {
- ServerInstance->WriteOpers(std::string("FILTER: ")+user->nick+" had their notice filtered, target was "+target+": "+f->reason);
- user->WriteServ("NOTICE "+std::string(user->nick)+" :Your notice has been filtered and opers notified: "+f->reason);
+ c->Handle(params, pcnt, user);
+ return 1;
}
- ServerInstance->Log(DEFAULT,"FILTER: "+std::string(user->nick)+std::string(" had their notice filtered, target was ")+target+": "+f->reason+" Action: "+f->action);
-
- if (f->action == "kill")
+ else
{
- userrec::QuitUser(ServerInstance,user,f->reason);
+ /* Are they parting, if so, kill is applicable */
+ if ((parting) && (f->action == "kill"))
+ {
+ user->SetWriteError("Filtered: "+f->reason);
+ /* This WriteServ causes the write error to be applied.
+ * Its not safe to kill here with QuitUser in a PreCommand handler,
+ * so we do it this way, which is safe just about anywhere.
+ */
+ user->WriteServ("NOTICE %s :*** Your PART message was filtered: %s", user->nick, f->reason.c_str());
+ }
+ if (f->action == "gline")
+ {
+ /* Note: We gline *@IP so that if their host doesnt resolve the gline still applies. */
+ std::string wild = "*@";
+ wild.append(user->GetIPString());
+
+ if (ServerInstance->XLines->add_gline(f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), wild.c_str()))
+ {
+ ServerInstance->XLines->apply_lines(APPLY_GLINES);
+ FOREACH_MOD(I_OnAddGLine,OnAddGLine(f->gline_time, NULL, f->reason, user->MakeHostIP()));
+ }
+ }
+ return 1;
}
- return 1;
}
return 0;
}
+ return 0;
+}
- virtual void OnRehash(const std::string ¶meter)
- {
- }
+void FilterBase::OnRehash(userrec* user, const std::string ¶meter)
+{
+}
- virtual Version GetVersion()
+Version FilterBase::GetVersion()
+{
+ return Version(1,1,0,2,VF_VENDOR|VF_COMMON,API_VERSION);
+}
+
+
+std::string FilterBase::EncodeFilter(FilterResult* filter)
+{
+ std::ostringstream stream;
+ std::string x = filter->freeform;
+
+ for (std::string::iterator n = x.begin(); n != x.end(); n++)
+ if (*n == ' ')
+ *n = '\7';
+
+ stream << x << " " << filter->action << " " << filter->gline_time << " " << filter->reason;
+ return stream.str();
+}
+
+FilterResult FilterBase::DecodeFilter(const std::string &data)
+{
+ FilterResult res;
+ std::istringstream stream(data);
+
+ stream >> res.freeform;
+ stream >> res.action;
+ stream >> res.gline_time;
+ res.reason = stream.str();
+
+ for (std::string::iterator n = res.freeform.begin(); n != res.freeform.end(); n++)
+ if (*n == '\7')
+ *n = ' ';
+
+ return res;
+}
+
+void FilterBase::OnSyncOtherMetaData(Module* proto, void* opaque)
+{
+ this->SyncFilters(proto, opaque);
+}
+
+void FilterBase::SendFilter(Module* proto, void* opaque, FilterResult* iter)
+{
+ proto->ProtoSendMetaData(opaque, TYPE_OTHER, NULL, "filter", EncodeFilter(iter));
+}
+
+void FilterBase::OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)
+{
+ if ((target_type == TYPE_OTHER) && (extname == "filter"))
{
- // This is version 2 because version 1.x is the unreleased unrealircd module
- return Version(1,1,0,2,VF_VENDOR,API_VERSION);
+ FilterResult data = DecodeFilter(extdata);
+ this->AddFilter(data.freeform, data.action, data.reason, data.gline_time);
}
-};
+}
+
projects / user / henk / code / inspircd.git / blobdiff