Add support for blocking tag messages with the deaf mode.

[user/henk/code/inspircd.git] / src / wildcard.cpp

diff --git a/src/wildcard.cpp b/src/wildcard.cpp
index 41070d14506c8f30fdae2f48902a09406760e4c7..f9e706906b3f4bbe3339b22b36088680a035bf6d 100644 (file)
--- a/src/wildcard.cpp
+++ b/src/wildcard.cpp
@@ -1,90 +1,126 @@
-#include <string>
-#include "inspircd_config.h"
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2013, 2017 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
+ *   Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
+ *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2007-2008 Dennis Friis <peavey@inspircd.org>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
 #include "inspircd.h"
 
-void Delete(char* str,int pos)
+static bool MatchInternal(const unsigned char* str, const unsigned char* mask, unsigned const char* map)
 {
-       char moo[MAXBUF];
-       strcpy(moo,str);
-       moo[pos] = '\0';
-       strcpy(str,moo);
-       strcat(str,moo+pos+1);
+       unsigned char* cp = NULL;
+       unsigned char* mp = NULL;
+       unsigned char* string = (unsigned char*)str;
+       unsigned char* wild = (unsigned char*)mask;
+
+       while ((*string) && (*wild != '*'))
+       {
+               if ((map[*wild] != map[*string]) && (*wild != '?'))
+               {
+                       return 0;
+               }
+               wild++;
+               string++;
+       }
+
+       while (*string)
+       {
+               if (*wild == '*')
+               {
+                       if (!*++wild)
+                       {
+                               return 1;
+                       }
+                       mp = wild;
+                       cp = string+1;
+               }
+               else
+                       if ((map[*wild] == map[*string]) || (*wild == '?'))
+                       {
+                               wild++;
+                               string++;
+                       }
+                       else
+                       {
+                               wild = mp;
+                               string = cp++;
+                       }
+
+       }
+
+       while (*wild == '*')
+       {
+               wild++;
+       }
+
+       return !*wild;
 }
 
-void Insert(char* substr,char* str,int pos)
+// Below here is all wrappers around MatchInternal
+
+bool InspIRCd::Match(const std::string& str, const std::string& mask, unsigned const char* map)
 {
-       std::string a = str;
-       a.insert(pos,substr);
-       strcpy(str,a.c_str());
+       if (!map)
+               map = national_case_insensitive_map;
+
+       return MatchInternal((const unsigned char*)str.c_str(), (const unsigned char*)mask.c_str(), map);
 }
 
+bool InspIRCd::Match(const char* str, const char* mask, unsigned const char* map)
+{
+       if (!map)
+               map = national_case_insensitive_map;
 
-int MWC = 0;
+       return MatchInternal((const unsigned char*)str, (const unsigned char*)mask, map);
+}
 
-bool match2(char* literal,char* mask)
+bool InspIRCd::MatchCIDR(const std::string& str, const std::string& mask, unsigned const char* map)
 {
+       if (irc::sockets::MatchCIDR(str, mask, true))
+               return true;
 
-char OldM[MAXBUF];
-int I,I2;
-
-if (MWC)
-       return true;
-
-if ((strstr(mask,"*")==0) && (strlen(literal) != strlen(mask)))
-       return 0;
- I=0;
- I2=0;
- while (I < strlen(mask))
- {
-   if (I2 >= strlen(literal))
-          return 0;
- 
-   if ((mask[I]=='*') && (MWC==0))
-   {
-     strcpy(OldM,mask);
-     
-     Delete(mask,I);
-     
-     while (strlen(mask)<255)
-     {
-       match2(literal,mask);
-       if (MWC==2)
-              return 1;
-
-       Insert("?",mask,I);
-     }
-     strcpy(mask,OldM);
-     Delete(mask,I);
-     Insert("?",mask,I);
-   }
-   if (mask[I]=='?')
-   {
-     I++;
-     I2++;
-     continue;
-   }
-   if (mask[I] != literal[I2])
-          return 0;
-   if (MWC)
-          return 1;
-   I++;
-   I2++;
- }
- if (strlen(literal)==strlen(mask))
-                MWC=2;
-
+       // Fall back to regular match
+       return InspIRCd::Match(str, mask, map);
 }
 
-bool match(char* literal, char* mask)
+bool InspIRCd::MatchCIDR(const char* str, const char* mask, unsigned const char* map)
 {
-       char L[10240];
-       char M[10240];
-       MWC = 0;
-       strncpy(L,literal,10240);
-       strncpy(M,mask,10240);
-       strlower(L);
-       strlower(M);
-       match2(L,M);
-       return (MWC == 2);
+       if (irc::sockets::MatchCIDR(str, mask, true))
+               return true;
+
+       // Fall back to regular match
+       return InspIRCd::Match(str, mask, map);
 }
 
+bool InspIRCd::MatchMask(const std::string& masks, const std::string& hostname, const std::string& ipaddr)
+{
+       irc::spacesepstream masklist(masks);
+       std::string mask;
+       while (masklist.GetToken(mask))
+       {
+               if (InspIRCd::Match(hostname, mask, ascii_case_insensitive_map) ||
+                       InspIRCd::MatchCIDR(ipaddr, mask, ascii_case_insensitive_map))
+               {
+                       return true;
+               }
+       }
+       return false;
+}