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 */
27 #pragma comment(lib, "pcre.lib")
30 class PCREFilter : public FilterResult
35 PCREFilter(pcre* r, const std::string &rea, const std::string &act, long gline_time, const std::string &pat, const std::string &flags)
36 : FilterResult(pat, rea, act, gline_time, flags), regexp(r)
45 class ModuleFilterPCRE : public FilterBase
47 std::vector<PCREFilter> filters;
54 ModuleFilterPCRE(InspIRCd* Me)
55 : FilterBase(Me, "m_filter_pcre.so")
60 virtual ~ModuleFilterPCRE()
64 virtual FilterResult* FilterMatch(User* user, const std::string &text, int flags)
66 for (std::vector<PCREFilter>::iterator index = filters.begin(); index != filters.end(); index++)
68 /* Skip ones that dont apply to us */
70 if (!FilterBase::AppliesToMe(user, dynamic_cast<FilterResult*>(&(*index)), flags))
73 if (pcre_exec(index->regexp, NULL, text.c_str(), text.length(), 0, 0, NULL, 0) > -1)
76 if (index != filters.begin())
79 filters.insert(filters.begin(), fr);
87 virtual bool DeleteFilter(const std::string &freeform)
89 for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
91 if (i->freeform == freeform)
93 pcre_free((*i).regexp);
101 virtual void SyncFilters(Module* proto, void* opaque)
103 for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
105 this->SendFilter(proto, opaque, &(*i));
109 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)
111 for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
113 if (i->freeform == freeform)
115 return std::make_pair(false, "Filter already exists");
119 re = pcre_compile(freeform.c_str(),0,&error,&erroffset,NULL);
123 ServerInstance->Log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", freeform.c_str(), erroffset, error);
124 ServerInstance->Log(DEFAULT,"Regular expression %s not loaded.", freeform.c_str());
125 return std::make_pair(false, "Error in regular expression at offset " + ConvToStr(erroffset) + ": "+error);
129 filters.push_back(PCREFilter(re, reason, type, duration, freeform, flags));
130 return std::make_pair(true, "");
134 virtual void OnRehash(User* user, const std::string ¶meter)
136 ConfigReader MyConf(ServerInstance);
138 for (int index = 0; index < MyConf.Enumerate("keyword"); index++)
140 this->DeleteFilter(MyConf.ReadValue("keyword", "pattern", index));
142 std::string pattern = MyConf.ReadValue("keyword", "pattern", index);
143 std::string reason = MyConf.ReadValue("keyword", "reason", index);
144 std::string action = MyConf.ReadValue("keyword", "action", index);
145 std::string flags = MyConf.ReadValue("keyword", "flags", index);
146 long gline_time = ServerInstance->Duration(MyConf.ReadValue("keyword", "duration", index));
152 re = pcre_compile(pattern.c_str(),0,&error,&erroffset,NULL);
156 ServerInstance->Log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", pattern.c_str(), erroffset, error);
157 ServerInstance->Log(DEFAULT,"Regular expression %s not loaded.", pattern.c_str());
161 filters.push_back(PCREFilter(re, reason, action, gline_time, pattern, flags));
162 ServerInstance->Log(DEFAULT,"Regular expression %s loaded.", pattern.c_str());
167 virtual int OnStats(char symbol, User* user, string_list &results)
171 std::string sn = ServerInstance->Config->ServerName;
172 for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
174 results.push_back(sn+" 223 "+user->nick+" :REGEXP:"+i->freeform+" "+i->flags+" "+i->action+" "+ConvToStr(i->gline_time)+" :"+i->reason);
181 MODULE_INIT(ModuleFilterPCRE)