* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd is copyright (C) 2002-2004 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
+ * InspIRCd: (C) 2002-2008 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.
+ * the file COPYING for details.
*
* ---------------------------------------------------
*/
-// Message and notice filtering using regex patterns
-// a module based on the original work done by Craig Edwards in 2003
-// for the chatspike network.
-
-#include <stdio.h>
-#include <string>
+#include "inspircd.h"
#include <pcre.h>
#include "users.h"
#include "channels.h"
#include "modules.h"
-#include "inspircd.h"
+#include "m_filter.h"
-/** Thrown by m_filter_pcre
- */
-class FilterPCREException : public ModuleException
+/* $ModDesc: m_filter with regexps */
+/* $CompileFlags: exec("pcre-config --cflags") */
+/* $LinkerFlags: exec("pcre-config --libs") rpath("pcre-config --libs") -lpcre */
+/* $ModDep: m_filter.h */
+
+#ifdef WINDOWS
+#pragma comment(lib, "pcre.lib")
+#endif
+
+class PCREFilter : public FilterResult
{
public:
- virtual const char* GetReason()
- {
- return "Could not find <filter file=\"\"> definition in your config file!";
- }
-};
+ pcre* regexp;
-/* $ModDesc: m_filter with regexps */
-/* $CompileFlags: `pcre-config --cflags` */
-/* $LinkerFlags: `pcre-config --libs` `perl extra/pcre_rpath.pl` -lpcre */
+ PCREFilter(pcre* r, const std::string &rea, const std::string &act, long glinetime, const std::string &pat, const std::string &flgs)
+ : FilterResult(pat, rea, act, glinetime, flgs), regexp(r)
+ {
+ }
-class ModuleFilterPCRE : public Module
+ PCREFilter()
+ {
+ }
+};
+
+class ModuleFilterPCRE : public FilterBase
{
- class Filter
- {
- public:
- pcre* regexp;
- std::string reason;
- std::string action;
-
- Filter(pcre* r, const std::string &rea, const std::string &act)
- : regexp(r), reason(rea), action(act)
- {
- }
- };
-
- InspIRCd* Srv;
- std::vector<Filter> filters;
+ std::vector<PCREFilter> filters;
pcre *re;
const char *error;
int erroffset;
-
+ PCREFilter fr;
+
public:
ModuleFilterPCRE(InspIRCd* Me)
- : Module::Module(Me), Srv(Me)
+ : FilterBase(Me, "m_filter_pcre.so")
{
- OnRehash("");
+ OnRehash(NULL,"");
+
}
-
+
virtual ~ModuleFilterPCRE()
{
}
- void Implements(char* List)
+ virtual FilterResult* FilterMatch(User* user, const std::string &text, int flgs)
{
- List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1;
- }
+ for (std::vector<PCREFilter>::iterator index = filters.begin(); index != filters.end(); index++)
+ {
+ /* Skip ones that dont apply to us */
- // format of a config entry is <keyword pattern="^regexp$" reason="Some reason here" action="kill/block">
-
- virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status)
- {
- return OnUserPreNotice(user,dest,target_type,text,status);
+ if (!FilterBase::AppliesToMe(user, dynamic_cast<FilterResult*>(&(*index)), flgs))
+ continue;
+
+ if (pcre_exec(index->regexp, NULL, text.c_str(), text.length(), 0, 0, NULL, 0) > -1)
+ {
+ fr = *index;
+ if (index != filters.begin())
+ {
+ filters.erase(index);
+ filters.insert(filters.begin(), fr);
+ }
+ return &fr;
+ }
+ }
+ return NULL;
}
-
- virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
+
+ virtual bool DeleteFilter(const std::string &freeform)
{
- for (unsigned int index = 0; index < filters.size(); index++)
+ for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
{
- Filter& filt = filters[index];
-
- if (pcre_exec(filt.regexp,NULL,text.c_str(),text.length(),0,0,NULL,0) > -1)
+ if (i->freeform == freeform)
{
- const char* target;
-
- if(filt.action.empty())
- filt.action = "none";
-
- if (target_type == TYPE_USER)
- {
- userrec* t = (userrec*)dest;
- target = t->nick;
- }
- else if (target_type == TYPE_CHANNEL)
- {
- chanrec* t = (chanrec*)dest;
- target = t->name;
- }
- else
- {
- target = "";
- }
-
- ServerInstance->Log(DEFAULT, "Filter: %s had their notice filtered, target was %s: %s Action: %s", user->nick, target, filt.reason.c_str(), filt.action.c_str());
-
- if (filt.action == "block")
- {
- Srv->WriteOpers("Filter: %s had their notice filtered, target was %s: %s", user->nick, target, filt.reason.c_str());
- user->WriteServ("NOTICE "+std::string(user->nick)+" :Your notice has been filtered and opers notified: "+filt.reason);
- }
- else if (filt.action == "kill")
- {
- userrec::QuitUser(Srv, user, filt.reason);
- }
-
- return 1;
+ pcre_free((*i).regexp);
+ filters.erase(i);
+ return true;
}
}
- return 0;
+ return false;
}
-
- virtual void OnRehash(const std::string ¶meter)
+
+ virtual void SyncFilters(Module* proto, void* opaque)
+ {
+ for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
+ {
+ this->SendFilter(proto, opaque, &(*i));
+ }
+ }
+
+ virtual std::pair<bool, std::string> AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration, const std::string &flgs)
{
- /* Read the configuration file on startup and rehash.
- * It is perfectly valid to set <filter file> to the value of the
- * main config file, then append your <keyword> tags to the bottom
- * of the main config... but rather messy. That's why the capability
- * of using a seperate config file is provided.
- */
-
- ConfigReader Conf(Srv);
-
- std::string filterfile = Conf.ReadValue("filter", "file", 0);
-
- ConfigReader MyConf(Srv, filterfile);
-
- if (filterfile.empty() || !MyConf.Verify())
+ for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
+ {
+ if (i->freeform == freeform)
+ {
+ return std::make_pair(false, "Filter already exists");
+ }
+ }
+
+ re = pcre_compile(freeform.c_str(),0,&error,&erroffset,NULL);
+
+ if (!re)
{
- FilterPCREException e;
- throw(e);
+ ServerInstance->Logs->Log("m_filter_pcre", DEFAULT,"Error in regular expression: %s at offset %d: %s\n", freeform.c_str(), erroffset, error);
+ ServerInstance->Logs->Log("m_filter_pcre", DEFAULT,"Regular expression %s not loaded.", freeform.c_str());
+ return std::make_pair(false, "Error in regular expression at offset " + ConvToStr(erroffset) + ": "+error);
}
-
- ServerInstance->Log(DEFAULT,"m_filter_pcre: read configuration from "+filterfile);
-
- for (std::vector<Filter>::iterator i = filters.begin(); i != filters.end(); i++)
- pcre_free((*i).regexp);
-
- filters.clear();
-
+ else
+ {
+ filters.push_back(PCREFilter(re, reason, type, duration, freeform, flgs));
+ return std::make_pair(true, "");
+ }
+ }
+
+ virtual void OnRehash(User* user, const std::string ¶meter)
+ {
+ ConfigReader MyConf(ServerInstance);
+
for (int index = 0; index < MyConf.Enumerate("keyword"); index++)
{
- std::string pattern = MyConf.ReadValue("keyword","pattern",index);
- std::string reason = MyConf.ReadValue("keyword","reason",index);
- std::string action = MyConf.ReadValue("keyword","action",index);
-
+ this->DeleteFilter(MyConf.ReadValue("keyword", "pattern", index));
+
+ std::string pattern = MyConf.ReadValue("keyword", "pattern", index);
+ std::string reason = MyConf.ReadValue("keyword", "reason", index);
+ std::string action = MyConf.ReadValue("keyword", "action", index);
+ std::string flgs = MyConf.ReadValue("keyword", "flags", index);
+ long gline_time = ServerInstance->Duration(MyConf.ReadValue("keyword", "duration", index));
+ if (action.empty())
+ action = "none";
+ if (flgs.empty())
+ flgs = "*";
+
re = pcre_compile(pattern.c_str(),0,&error,&erroffset,NULL);
-
+
if (!re)
{
- ServerInstance->Log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", pattern.c_str(), erroffset, error);
- ServerInstance->Log(DEFAULT,"Regular expression %s not loaded.", pattern.c_str());
+ ServerInstance->Logs->Log("CONFIG",DEFAULT,"Error in regular expression: %s at offset %d: %s\n", pattern.c_str(), erroffset, error);
+ ServerInstance->Logs->Log("CONFIG",DEFAULT,"Regular expression %s not loaded.", pattern.c_str());
}
else
{
- filters.push_back(Filter(re, reason, action));
- ServerInstance->Log(DEFAULT,"Regular expression %s loaded.", pattern.c_str());
+ filters.push_back(PCREFilter(re, reason, action, gline_time, pattern, flgs));
+ ServerInstance->Logs->Log("CONFIG",DEFAULT,"Regular expression %s loaded.", pattern.c_str());
}
}
+ FilterBase::OnRehash(user, parameter);
}
-
- virtual Version GetVersion()
- {
- /* Version 1.x is the unreleased unrealircd module */
- return Version(3,2,1,0,VF_VENDOR,API_VERSION);
- }
-
-};
-
-// stuff down here is the module-factory stuff. For basic modules you can ignore this.
-class ModuleFilterPCREFactory : public ModuleFactory
-{
- public:
- ModuleFilterPCREFactory()
+ virtual int OnStats(char symbol, User* user, string_list &results)
{
+ if (symbol == 's')
+ {
+ std::string sn = ServerInstance->Config->ServerName;
+ for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
+ {
+ results.push_back(sn+" 223 "+user->nick+" :REGEXP:"+i->freeform+" "+i->flags+" "+i->action+" "+ConvToStr(i->gline_time)+" :"+i->reason);
+ }
+ for (std::vector<std::string>::iterator i = exemptfromfilter.begin(); i != exemptfromfilter.end(); ++i)
+ {
+ results.push_back(sn+" 223 "+user->nick+" :EXEMPT "+(*i));
+ }
+ }
+ return 0;
}
-
- ~ModuleFilterPCREFactory()
- {
- }
-
- virtual Module * CreateModule(InspIRCd* Me)
- {
- return new ModuleFilterPCRE(Me);
- }
-
};
+MODULE_INIT(ModuleFilterPCRE)
-extern "C" void * init_module( void )
-{
- return new ModuleFilterPCREFactory;
-}
projects / user / henk / code / inspircd.git / blobdiff