]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_alias.cpp
Add config <options:disablehmac> to support disabling of HMAC, and tidy up to detect...
[user/henk/code/inspircd.git] / src / modules / m_alias.cpp
index 3e09aef2f8bca736ac7c685c237a904c4340041f..3893ad5bf3b22df33072b95a18000a3782669b9a 100644 (file)
@@ -1,68 +1,75 @@
-/*   +------------------------------------+
- *   | Inspire Internet Relay Chat Daemon |
- *   +------------------------------------+
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
  *
- *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *   E-mail:
- *     <brain@chatspike.net>
- *     <Craig@chatspike.net>
- * 
- * Written by Craig Edwards, Craig McLure, and others.
  * This program is free but copyrighted software; see
- *the file COPYING for details.
+ *            the file COPYING for details.
  *
  * ---------------------------------------------------
  */
 
-using namespace std;
-
 #include "users.h"
 #include "channels.h"
 #include "modules.h"
-#include "helperfuncs.h"
-#include "commands.h"
 #include "inspircd.h"
+#include "wildcard.h"
 #include <vector>
 
 /* $ModDesc: Provides aliases of commands. */
 
-
-
+/** An alias definition
+ */
 class Alias : public classbase
 {
  public:
+       /** The text of the alias command */
        irc::string text;
+       /** Text to replace with */
        std::string replace_with;
+       /** Nickname required to perform alias */
        std::string requires;
+       /** Alias requires ulined server */
        bool uline;
+       /** Requires oper? */
+       bool operonly;
+       /* is case sensitive params */
+       bool case_sensitive;
+       /** Format that must be matched for use */
+       std::string format;
 };
 
 class ModuleAlias : public Module
 {
  private:
-       ConfigReader *MyConf;
+       /** We cant use a map, there may be multiple aliases with the same name */
        std::vector<Alias> Aliases;
+       std::map<std::string, int> AliasMap;
+       std::vector<std::string> pars;
 
        virtual void ReadAliases()
        {
+               ConfigReader MyConf(ServerInstance);
+
                Aliases.clear();
-       
-               for (int i = 0; i < MyConf->Enumerate("alias"); i++)
+               AliasMap.clear();
+               for (int i = 0; i < MyConf.Enumerate("alias"); i++)
                {
                        Alias a;
                        std::string txt;
-                       txt = MyConf->ReadValue("alias", "text", i);
+                       txt = MyConf.ReadValue("alias", "text", i);
                        a.text = txt.c_str();
-                       a.replace_with = MyConf->ReadValue("alias", "replace", i);
-                       a.requires = MyConf->ReadValue("alias", "requires", i);
-               
-                       a.uline =       ((MyConf->ReadValue("alias", "uline", i) == "yes") ||
-                                       (MyConf->ReadValue("alias", "uline", i) == "1") ||
-                                               (MyConf->ReadValue("alias", "uline", i) == "true"));
-                                       
+                       a.replace_with = MyConf.ReadValue("alias", "replace", i, true);
+                       a.requires = MyConf.ReadValue("alias", "requires", i);
+                       a.uline = MyConf.ReadFlag("alias", "uline", i);
+                       a.operonly = MyConf.ReadFlag("alias", "operonly", i);
+                       a.format = MyConf.ReadValue("alias", "format", i);
+                       a.case_sensitive = MyConf.ReadFlag("alias", "matchcase", i);
                        Aliases.push_back(a);
+                       AliasMap[txt] = 1;
                }
-
        }
 
  public:
@@ -70,9 +77,8 @@ class ModuleAlias : public Module
        ModuleAlias(InspIRCd* Me)
                : Module::Module(Me)
        {
-               
-               MyConf = new ConfigReader;
                ReadAliases();
+               pars.resize(127);
        }
 
        void Implements(char* List)
@@ -82,29 +88,89 @@ class ModuleAlias : public Module
 
        virtual ~ModuleAlias()
        {
-               DELETE(MyConf);
        }
 
        virtual Version GetVersion()
        {
-               return Version(1,0,0,1,VF_VENDOR);
+               return Version(1,1,0,1,VF_VENDOR,API_VERSION);
        }
 
-       virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
+       std::string GetVar(std::string varname, const std::string &original_line)
+       {
+               irc::spacesepstream ss(original_line);
+               varname.erase(varname.begin());
+               int index = *(varname.begin()) - 48;
+               varname.erase(varname.begin());
+               bool everything_after = (varname == "-");
+               std::string word = "";
+
+               for (int j = 0; j < index; j++)
+                       word = ss.GetToken();
+
+               if (everything_after)
+               {
+                       std::string more = "*";
+                       while ((more = ss.GetToken()) != "")
+                       {
+                               word.append(" ");
+                               word.append(more);
+                       }
+               }
+
+               return word;
+       }
+
+       void SearchAndReplace(std::string& newline, const std::string &find, const std::string &replace)
+       {
+               std::string::size_type x = newline.find(find);
+               while (x != std::string::npos)
+               {
+                       newline.erase(x, find.length());
+                       newline.insert(x, replace);
+                       x = newline.find(find);
+               }
+       }
+
+       virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
        {
                userrec *u = NULL;
-               irc::string c = command.c_str();
-               /* If the command is valid, we dont want to know,
-                * and if theyre not registered yet, we dont want
-                * to know either
+
+               /* If theyre not registered yet, we dont want
+                * to know.
                 */
-               if ((validated) || (user->registered != REG_ALL))
+               if (user->registered != REG_ALL)
                        return 0;
-               
+
+               /* We dont have any commands looking like this, dont bother with the loop */
+               if (AliasMap.find(command) == AliasMap.end())
+                       return 0;
+
+               irc::string c = command.c_str();
+               /* The parameters for the command in their original form, with the command stripped off */
+               std::string compare = original_line.substr(command.length());
+               while (*(compare.c_str()) == ' ')
+                       compare.erase(compare.begin());
+
+               std::string safe(original_line);
+
+               /* Escape out any $ symbols in the user provided text */
+
+               SearchAndReplace(safe, "$", "\r");
+
                for (unsigned int i = 0; i < Aliases.size(); i++)
                {
                        if (Aliases[i].text == c)
                        {
+                               /* Does it match the pattern? */
+                               if (!Aliases[i].format.empty())
+                               {
+                                       if (!match(Aliases[i].case_sensitive, compare.c_str(), Aliases[i].format.c_str()))
+                                               continue;
+                               }
+
+                               if ((Aliases[i].operonly) && (!*user->oper))
+                                       return 0;
+
                                if (Aliases[i].requires != "")
                                {
                                        u = ServerInstance->FindNick(Aliases[i].requires);
@@ -116,41 +182,90 @@ class ModuleAlias : public Module
                                }
                                if ((u != NULL) && (Aliases[i].requires != "") && (Aliases[i].uline))
                                {
-                                       if (!is_uline(u->server))
+                                       if (!ServerInstance->ULine(u->server))
                                        {
                                                ServerInstance->WriteOpers("*** NOTICE -- Service "+Aliases[i].requires+" required by alias "+std::string(Aliases[i].text.c_str())+" is not on a u-lined server, possibly underhanded antics detected!"); 
                                                user->WriteServ("401 "+std::string(user->nick)+" "+Aliases[i].requires+" :is an imposter! Please inform an IRC operator as soon as possible.");
                                                return 1;
                                        }
                                }
-                                       std::string n = "";
-                               for (int j = 0; j < pcnt; j++)
+
+                               /* Now, search and replace in a copy of the original_line, replacing $1 through $9 and $1- etc */
+
+                               std::string::size_type crlf = Aliases[i].replace_with.find('\n');
+
+                               if (crlf == std::string::npos)
                                {
-                                       if (j)
-                                               n = n + " ";
-                                       n = n + parameters[j];
+                                       DoCommand(Aliases[i].replace_with, user, safe);
+                                       return 1;
+                               }
+                               else
+                               {
+                                       irc::sepstream commands(Aliases[i].replace_with, '\n');
+                                       std::string command = "*";
+                                       while ((command = commands.GetToken()) != "")
+                                       {
+                                               DoCommand(command, user, safe);
+                                       }
+                                       return 1;
                                }
-                               /* Final param now in n as one string */
-                               std::stringstream stuff(Aliases[i].replace_with);
-                                       std::string cmd = "";
-                               std::string target = "";
-                               stuff >> cmd;
-                               stuff >> target;
-                                       const char* para[2];
-                               para[0] = target.c_str();
-                               para[1] = n.c_str();
-                                       ServerInstance->CallCommandHandler(cmd,para,2,user);
-                               return 1;
                        }
                }
                return 0;
-       }
+       }
+
+       void DoCommand(std::string newline, userrec* user, const std::string &original_line)
+       {
+               for (int v = 1; v < 10; v++)
+               {
+                       std::string var = "$";
+                       var.append(ConvToStr(v));
+                       var.append("-");
+                       std::string::size_type x = newline.find(var);
+
+                       while (x != std::string::npos)
+                       {
+                               newline.erase(x, var.length());
+                               newline.insert(x, GetVar(var, original_line));
+                               x = newline.find(var);
+                       }
+
+                       var = "$";
+                       var.append(ConvToStr(v));
+                       x = newline.find(var);
+
+                       while (x != std::string::npos)
+                       {
+                               newline.erase(x, var.length());
+                               newline.insert(x, GetVar(var, original_line));
+                               x = newline.find(var);
+                       }
+               }
+
+               /* Special variables */
+               SearchAndReplace(newline, "$nick", user->nick);
+               SearchAndReplace(newline, "$ident", user->ident);
+               SearchAndReplace(newline, "$host", user->host);
+               SearchAndReplace(newline, "$vhost", user->dhost);
+
+               /* Unescape any variable names in the user text before sending */
+               SearchAndReplace(newline, "\r", "$");
+
+               irc::tokenstream ss(newline);
+               const char* parv[127];
+               int x = 0;
+
+               while (ss.GetToken(pars[x]))
+               {
+                       parv[x] = pars[x].c_str();
+                       x++;
+               }
+
+               ServerInstance->Parser->CallHandler(parv[0], &parv[1], x-1, user);
+       }
  
-       virtual void OnRehash(const std::string &parameter)
+       virtual void OnRehash(userrec* user, const std::string &parameter)
        {
-               DELETE(MyConf);
-               MyConf = new ConfigReader;
-       
                ReadAliases();
        }
 };