]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_oper_hash.cpp
there were two.. yes, you're right Special
[user/henk/code/inspircd.git] / src / modules / m_oper_hash.cpp
index 812228ca5879fba5e027aeaa3c9aa5c44fbe6b6e..b4661741b52b9ce4e44341c62324be6aa78cae94 100644 (file)
@@ -2,12 +2,9 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *               <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
+ *  InspIRCd: (C) 2002-2007 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.
  *
  */
 
 /* $ModDesc: Allows for hashed oper passwords */
-/* $ModDep: m_md5.h m_sha256.h */
-
-using namespace std;
+/* $ModDep: m_hash.h */
 
-#include "inspircd_config.h"
+#include "inspircd.h"
 #include "users.h"
 #include "channels.h"
 #include "modules.h"
-#include "inspircd.h"
+#include "m_hash.h"
 
-#include "m_md5.h"
-#include "m_sha256.h"
-
-enum ProviderType
-{
-       PROV_MD5,
-       PROV_SHA
-};
+typedef std::map<irc::string, Module*> hashymodules;
 
 /* Handle /MKPASSWD
  */
 class cmd_mkpasswd : public command_t
 {
-       Module* Provider;
        Module* Sender;
-       ProviderType Prov;
+       hashymodules &hashers;
+       std::deque<std::string> &names;
  public:
-       cmd_mkpasswd (InspIRCd* Instance, Module* Sender, Module* Hasher, ProviderType P) : command_t(Instance,"MKPASSWD", 'o', 1), Provider(Hasher), Prov(P)
+       cmd_mkpasswd (InspIRCd* Instance, Module* S, hashymodules &h, std::deque<std::string> &n)
+               : command_t(Instance,"MKPASSWD", 'o', 2), Sender(S), hashers(h), names(n)
        {
                this->source = "m_oper_hash.so";
-               syntax = "<any-text>";
+               syntax = "<hashtype> <any-text>";
        }
 
-       CmdResult Handle (const char** parameters, int pcnt, userrec *user)
+       void MakeHash(userrec* user, const char* algo, const char* stuff)
        {
-               if (Prov == PROV_MD5)
+               /* Lets see if they gave us an algorithm which has been implemented */
+               hashymodules::iterator x = hashers.find(algo);
+               if (x != hashers.end())
                {
-                       MD5ResetRequest(Sender, Provider).Send();
-                       user->WriteServ("NOTICE %s :MD5 hashed password for %s is %s",user->nick,parameters[0], MD5SumRequest(Sender, Provider, parameters[0]).Send() );
+                       /* Yup, reset it first (Always ALWAYS do this) */
+                       HashResetRequest(Sender, x->second).Send();
+                       /* Now attempt to generate a hash */
+                       user->WriteServ("NOTICE %s :%s hashed password for %s is %s",user->nick, algo, stuff, HashSumRequest(Sender, x->second, stuff).Send() );
                }
                else
                {
-                       SHA256ResetRequest(Sender, Provider).Send();
-                       user->WriteServ("NOTICE %s :SHA256 hashed password for %s is %s",user->nick,parameters[0], SHA256SumRequest(Sender, Provider, parameters[0]).Send() );
+                       /* I dont do flying, bob. */
+                       user->WriteServ("NOTICE %s :Unknown hash type, valid hash types are: %s", user->nick, irc::stringjoiner(", ", names, 0, names.size() - 1).GetJoined().c_str() );
                }
+       }
 
-               return CMD_SUCCESS;
+       CmdResult Handle (const char** parameters, int pcnt, userrec *user)
+       {
+               MakeHash(user, parameters[0], parameters[1]);
+               /* NOTE: Don't propogate this across the network!
+                * We dont want plaintext passes going all over the place...
+                * To make sure it goes nowhere, return CMD_FAILURE!
+                */
+               return CMD_FAILURE;
        }
 };
 
@@ -69,102 +70,94 @@ class ModuleOperHash : public Module
 {
        
        cmd_mkpasswd* mycommand;
-       Module* Provider;
-       std::string providername;
-       ProviderType ID;
+       ConfigReader* Conf;
+       hashymodules hashers; /* List of modules which implement HashRequest */
+       std::deque<std::string> names; /* Module names which implement HashRequest */
 
  public:
 
        ModuleOperHash(InspIRCd* Me)
-               : Module::Module(Me)
+               : Module(Me)
        {
-               ConfigReader Conf(ServerInstance);
-               providername = Conf.ReadValue("operhash","algorithm",0);
 
-               if (providername.empty())
-                       providername = "md5";
+               /* Read the config file first */
+               Conf = NULL;
+               OnRehash(NULL,"");
 
-               if (providername == "md5")
-                       ID = PROV_MD5;
-               else
-                       ID = PROV_SHA;
+               ServerInstance->UseInterface("HashRequest");
+
+               /* Find all modules which implement the interface 'HashRequest' */
+               modulelist* ml = ServerInstance->FindInterface("HashRequest");
 
-               /* Try to find the md5 service provider, bail if it can't be found */
-               Provider = ServerInstance->FindModule(std::string("m_") + providername + ".so");
-               if (!Provider)
-                       throw ModuleException(std::string("Can't find m_") + providername + ".so. Please load m_" + providername + ".so before m_oper_hash.so.");
+               /* Did we find any modules? */
+               if (ml)
+               {
+                       /* Yes, enumerate them all to find out the hashing algorithm name */
+                       for (modulelist::iterator m = ml->begin(); m != ml->end(); m++)
+                       {
+                               /* Make a request to it for its name, its implementing
+                                * HashRequest so we know its safe to do this
+                                */
+                               std::string name = HashNameRequest(this, *m).Send();
+                               /* Build a map of them */
+                               hashers[name.c_str()] = *m;
+                               names.push_back(name);
+                       }
+               }
+               else
+               {
+                       throw ModuleException("I can't find any modules loaded which implement the HashRequest interface! You probably forgot to load a hashing module such as m_md5.so or m_sha256.so.");
+               }
 
-               mycommand = new cmd_mkpasswd(ServerInstance, this, Provider, ID);
+               mycommand = new cmd_mkpasswd(ServerInstance, this, hashers, names);
                ServerInstance->AddCommand(mycommand);
        }
        
        virtual ~ModuleOperHash()
        {
+               ServerInstance->DoneWithInterface("HashRequest");
        }
 
        void Implements(char* List)
        {
-               List[I_OnOperCompare] = 1;
+               List[I_OnRehash] = List[I_OnOperCompare] = 1;
        }
 
-       virtual int OnOperCompare(const std::string &data, const std::string &input)
+       virtual void OnRehash(userrec* user, const std::string &parameter)
        {
-               /* always always reset first */
-               if (ID == PROV_MD5)
-               {
-                       MD5ResetRequest(this, Provider).Send();
-                       if (data.length() == 32) // if its 32 chars long, try it as an md5
-                       {
-                               /* Does it match the md5 sum? */
-                               if (!strcasecmp(data.c_str(), MD5SumRequest(this, Provider, input.c_str()).Send()))
-                               {
-                                       return 1;
-                               }
-                               else return 0;
-                       }
-               }
-               else
+               /* Re-read configuration file */
+               if (Conf)
+                       delete Conf;
+
+               Conf = new ConfigReader(ServerInstance);
+       }
+
+       virtual int OnOperCompare(const std::string &data, const std::string &input, int tagnumber)
+       {
+               /* First, lets see what hash theyre using on this oper */
+               std::string hashtype = Conf->ReadValue("oper", "hash", tagnumber);
+               hashymodules::iterator x = hashers.find(hashtype.c_str());
+
+               /* Is this a valid hash name? (case insensitive) */
+               if (x != hashers.end())
                {
-                       SHA256ResetRequest(this, Provider).Send();
-                       if (data.length() == SHA256_BLOCK_SIZE)
-                       {
-                               if (!strcasecmp(data.c_str(), SHA256SumRequest(this, Provider, input.c_str()).Send()))
-                               {
-                                       return 1;
-                               }
-                               else return 0;
-                       }
+                       /* Reset the hashing module */
+                       HashResetRequest(this, x->second).Send();
+                       /* Compare the hash in the config to the generated hash */
+                       if (!strcasecmp(data.c_str(), HashSumRequest(this, x->second, input.c_str()).Send()))
+                               return 1;
+                       /* No match, and must be hashed, forbid */
+                       else return -1;
                }
+
+               /* Not a hash, fall through to strcmp in core */
                return 0;
        }
-       
+
        virtual Version GetVersion()
        {
                return Version(1,1,0,1,VF_VENDOR,API_VERSION);
        }
 };
 
-
-class ModuleOperHashFactory : public ModuleFactory
-{
- public:
-       ModuleOperHashFactory()
-       {
-       }
-       
-       ~ModuleOperHashFactory()
-       {
-       }
-       
-       virtual Module * CreateModule(InspIRCd* Me)
-       {
-               return new ModuleOperHash(Me);
-       }
-       
-};
-
-
-extern "C" void * init_module( void )
-{
-       return new ModuleOperHashFactory;
-}
+MODULE_INIT(ModuleOperHash)