1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
21 /* $ModDesc: m_filter with regexps */
22 /* $CompileFlags: exec("pcre-config --cflags") */
23 /* $LinkerFlags: exec("pcre-config --libs") rpath("pcre-config --libs") -lpcre */
24 /* $ModDep: m_filter.h */
26 class PCREFilter : public FilterResult
31 PCREFilter(pcre* r, const std::string &rea, const std::string &act, long gline_time, const std::string &pat, const std::string &flags)
32 : FilterResult::FilterResult(pat, rea, act, gline_time, flags), regexp(r)
41 class ModuleFilterPCRE : public FilterBase
43 std::vector<PCREFilter> filters;
50 ModuleFilterPCRE(InspIRCd* Me)
51 : FilterBase::FilterBase(Me, "m_filter_pcre.so")
56 virtual ~ModuleFilterPCRE()
60 virtual FilterResult* FilterMatch(const std::string &text, int flags)
62 for (std::vector<PCREFilter>::iterator index = filters.begin(); index != filters.end(); index++)
64 if (pcre_exec(index->regexp, NULL, text.c_str(), text.length(), 0, 0, NULL, 0) > -1)
67 if (index != filters.begin())
70 filters.insert(filters.begin(), fr);
78 virtual bool DeleteFilter(const std::string &freeform)
80 for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
82 if (i->freeform == freeform)
84 pcre_free((*i).regexp);
92 virtual void SyncFilters(Module* proto, void* opaque)
94 for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
96 this->SendFilter(proto, opaque, &(*i));
100 virtual std::pair<bool, std::string> AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration, const std::string &flags)
102 for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
104 if (i->freeform == freeform)
106 return std::make_pair(false, "Filter already exists");
110 re = pcre_compile(freeform.c_str(),0,&error,&erroffset,NULL);
114 ServerInstance->Log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", freeform.c_str(), erroffset, error);
115 ServerInstance->Log(DEFAULT,"Regular expression %s not loaded.", freeform.c_str());
116 return std::make_pair(false, "Error in regular expression at offset " + ConvToStr(erroffset) + ": "+error);
120 filters.push_back(PCREFilter(re, reason, type, duration, freeform, flags));
121 return std::make_pair(true, "");
125 virtual void OnRehash(userrec* user, const std::string ¶meter)
127 ConfigReader MyConf(ServerInstance);
129 for (int index = 0; index < MyConf.Enumerate("keyword"); index++)
131 this->DeleteFilter(MyConf.ReadValue("keyword", "pattern", index));
133 std::string pattern = MyConf.ReadValue("keyword", "pattern", index);
134 std::string reason = MyConf.ReadValue("keyword", "reason", index);
135 std::string action = MyConf.ReadValue("keyword", "action", index);
136 std::string flags = MyConf.ReadValue("keyword", "flags", index);
137 long gline_time = ServerInstance->Duration(MyConf.ReadValue("keyword", "duration", index).c_str());
139 re = pcre_compile(pattern.c_str(),0,&error,&erroffset,NULL);
143 ServerInstance->Log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", pattern.c_str(), erroffset, error);
144 ServerInstance->Log(DEFAULT,"Regular expression %s not loaded.", pattern.c_str());
148 filters.push_back(PCREFilter(re, reason, action, gline_time, pattern, flags));
149 ServerInstance->Log(DEFAULT,"Regular expression %s loaded.", pattern.c_str());
154 virtual int OnStats(char symbol, userrec* user, string_list &results)
158 std::string sn = ServerInstance->Config->ServerName;
159 for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
161 results.push_back(sn+" 223 "+user->nick+" :REGEXP:"+i->freeform+" "+i->action+" "+ConvToStr(i->gline_time)+" :"+i->reason);
169 class ModuleFilterPCREFactory : public ModuleFactory
172 ModuleFilterPCREFactory()
176 ~ModuleFilterPCREFactory()
180 virtual Module * CreateModule(InspIRCd* Me)
182 return new ModuleFilterPCRE(Me);
188 extern "C" void * init_module( void )
190 return new ModuleFilterPCREFactory;