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Updates to new API

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git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@4215 e03df62e-2008-0410-955e-edbf42e46eb7
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om 2006-07-09 14:00:08 +00:00
parent f9900a3e43
commit 2326b99e36
1 changed files with 110 additions and 104 deletions
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202
src/modules/m_cloaking.cpp
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@ -14,8 +14,6 @@
* --------------------------------------------------- * ---------------------------------------------------
*/ */
using namespace std;
// Hostname cloaking (+x mode) module for inspircd. // Hostname cloaking (+x mode) module for inspircd.
// version 1.0.0.1 by brain (C. J. Edwards) Mar 2004. // version 1.0.0.1 by brain (C. J. Edwards) Mar 2004.
// //
@ -34,6 +32,7 @@ using namespace std;
#include <netinet/in.h> #include <netinet/in.h>
#include <arpa/inet.h> #include <arpa/inet.h>
#include <stdint.h> #include <stdint.h>
#include "inspircd.h"
#include "users.h" #include "users.h"
#include "channels.h" #include "channels.h"
#include "modules.h" #include "modules.h"
@ -58,10 +57,8 @@ struct xMD5Context {
word32 in[16]; word32 in[16];
}; };
class ModuleCloaking : public Module class CloakUser : public ModeHandler
{ {
private:
Server* Srv; Server* Srv;
std::string prefix; std::string prefix;
word32 key1; word32 key1;
@ -277,104 +274,49 @@ class ModuleCloaking : public Module
} }
public: public:
ModuleCloaking(Server* Me) CloakUser(Server* Me) : ModeHandler('x', 0, 0, false, MODETYPE_USER, false), Srv(Me) { }
: Module::Module(Me)
{
// We must take a copy of the Server class to work with
Srv = Me;
// we must create a new mode. Set the parameters so the ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
// mode doesn't require oper, and is a client usermode {
// with no parameters (actually, you cant have params for a umode!) /* Only opers can change other users modes */
Srv->AddExtendedMode('x',MT_CLIENT,false,0,0); if ((source != dest) && (!*source->oper))
return MODEACTION_DENY;
OnRehash(""); if (adding)
} {
if(!dest->IsModeSet('x'))
{
/* The mode is being turned on - so attempt to
* allocate the user a cloaked host using a non-reversible
* algorithm (its simple, but its non-reversible so the
* simplicity doesnt really matter). This algorithm
* will not work if the user has only one level of domain
* naming in their hostname (e.g. if they are on a lan or
* are connecting via localhost) -- this doesnt matter much.
*/
virtual ~ModuleCloaking()
{
}
virtual Version GetVersion()
{
// returns the version number of the module to be
// listed in /MODULES
return Version(1,0,0,1,VF_STATIC|VF_VENDOR);
}
virtual void OnRehash(const std::string &parameter)
{
ConfigReader* Conf = new ConfigReader();
key1 = key2 = key3 = key4 = 0;
key1 = Conf->ReadInteger("cloak","key1",0,false);
key2 = Conf->ReadInteger("cloak","key2",0,false);
key3 = Conf->ReadInteger("cloak","key3",0,false);
key4 = Conf->ReadInteger("cloak","key4",0,false);
prefix = Conf->ReadValue("cloak","prefix",0);
if (prefix == "")
{
prefix = Srv->GetNetworkName();
}
if (!key1 && !key2 && !key3 && !key4)
{
ModuleException ex("You have not defined cloak keys for m_cloaking!!! THIS IS INSECURE AND SHOULD BE CHECKED!");
throw (ex);
}
/*ctx->buf[0] = 0x67452301;
ctx->buf[1] = 0xefcdab89;
ctx->buf[2] = 0x98badcfe;
ctx->buf[3] = 0x10325476;*/
}
void Implements(char* List)
{
List[I_OnRehash] = List[I_OnExtendedMode] = List[I_OnUserConnect] = 1;
}
virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list &params)
{
// this method is called for any extended mode character.
// all module modes for all modules pass through here
// (unless another module further up the chain claims them)
// so we must be VERY careful to only act upon modes which
// we have claimed ourselves. This is a feature to allow
// modules to 'spy' on extended mode activity if they so wish.
if ((modechar == 'x') && (type == MT_CLIENT))
{
// OnExtendedMode gives us a void* as the target, we must cast
// it into a userrec* or a chanrec* depending on the value of
// the 'type' parameter (MT_CLIENT or MT_CHANNEL)
userrec* dest = (userrec*)target;
// we've now determined that this is our mode character...
// is the user adding the mode to their list or removing it?
if (mode_on)
{
// the mode is being turned on - so attempt to
// allocate the user a cloaked host using a non-reversible
// algorithm (its simple, but its non-reversible so the
// simplicity doesnt really matter). This algorithm
// will not work if the user has only one level of domain
// naming in their hostname (e.g. if they are on a lan or
// are connecting via localhost) -- this doesnt matter much.
if (strchr(dest->host,'.')) if (strchr(dest->host,'.'))
{ {
// in inspircd users have two hostnames. A displayed /* InspIRCd users have two hostnames; A displayed
// hostname which can be modified by modules (e.g. * hostname which can be modified by modules (e.g.
// to create vhosts, implement chghost, etc) and a * to create vhosts, implement chghost, etc) and a
// 'real' hostname which you shouldnt write to. * 'real' hostname which you shouldnt write to.
*/
std::string a = strstr(dest->host,"."); std::string a = strstr(dest->host,".");
char ra[64]; char ra[64];
this->GenHash(dest->host,ra); this->GenHash(dest->host,ra);
std::string b = ""; std::string b = "";
in_addr testaddr; in_addr testaddr;
std::string hostcloak = prefix + "-" + std::string(ra) + a; std::string hostcloak = prefix + "-" + std::string(ra) + a;
/* Fix by brain - if the cloaked host is > the max length of a host (64 bytes /* Fix by brain - if the cloaked host is > the max length of a host (64 bytes
* according to the DNS RFC) then tough titty, they get cloaked as an IP. * according to the DNS RFC) then tough titty, they get cloaked as an IP.
* Their ISP shouldnt go to town on subdomains, or they shouldnt have a kiddie * Their ISP shouldnt go to town on subdomains, or they shouldnt have a kiddie
* vhost. * vhost.
*/ */
if ((!inet_aton(dest->host,&testaddr)) && (hostcloak.length() < 64)) if ((!inet_aton(dest->host,&testaddr)) && (hostcloak.length() < 64))
{ {
// if they have a hostname, make something appropriate // if they have a hostname, make something appropriate
@ -388,24 +330,89 @@ class ModuleCloaking : public Module
Srv->Log(DEBUG,"cloak: allocated "+b); Srv->Log(DEBUG,"cloak: allocated "+b);
Srv->ChangeHost(dest,b); Srv->ChangeHost(dest,b);
} }
dest->SetMode('x',true);
return MODEACTION_ALLOW;
}
} }
else else
{ {
// user is removing the mode, so just restore their real host if (dest->IsModeSet('x'))
// and make it match the displayed one. {
/* User is removing the mode, so just restore their real host
* and make it match the displayed one.
*/
Srv->ChangeHost(dest,dest->host); Srv->ChangeHost(dest,dest->host);
dest->SetMode('x',false);
return MODEACTION_ALLOW;
} }
// this mode IS ours, and we have handled it. If we chose not to handle it,
// for example the user cannot cloak as they have a vhost or such, then
// we could return 0 here instead of 1 and the core would not send the mode
// change to the user.
return 1;
} }
else
return MODEACTION_DENY;
}
void DoRehash()
{ {
// this mode isn't ours, we have to bail and return 0 to not handle it. ConfigReader Conf;
return 0; key1 = key2 = key3 = key4 = 0;
key1 = Conf.ReadInteger("cloak","key1",0,false);
key2 = Conf.ReadInteger("cloak","key2",0,false);
key3 = Conf.ReadInteger("cloak","key3",0,false);
key4 = Conf.ReadInteger("cloak","key4",0,false);
prefix = Conf.ReadValue("cloak","prefix",0);
if (prefix == "")
{
prefix = Srv->GetNetworkName();
} }
if (!key1 && !key2 && !key3 && !key4)
{
ModuleException ex("You have not defined cloak keys for m_cloaking!!! THIS IS INSECURE AND SHOULD BE CHECKED!");
throw (ex);
}
}
};
class ModuleCloaking : public Module
{
private:
Server *Srv;
CloakUser* cu;
public:
ModuleCloaking(Server* Me)
: Module::Module(Me), Srv(Me)
{
/* Create new mode handler object */
cu = new CloakUser(Srv);
/* Register it with the core */
Srv->AddMode(cu, 'x');
OnRehash("");
}
virtual ~ModuleCloaking()
{
DELETE(cu);
}
virtual Version GetVersion()
{
// returns the version number of the module to be
// listed in /MODULES
return Version(1,0,0,2,VF_STATIC|VF_VENDOR);
}
virtual void OnRehash(const std::string &parameter)
{
cu->DoRehash();
}
void Implements(char* List)
{
List[I_OnRehash] = List[I_OnUserConnect] = 1;
} }
virtual void OnUserConnect(userrec* user) virtual void OnUserConnect(userrec* user)
@ -449,4 +456,3 @@ extern "C" void * init_module( void )
{ {
return new ModuleCloakingFactory; return new ModuleCloakingFactory;
} }