Request: test function(funcName);

[Deadly_Killer]

Built-in Function:

Request: testfunction(funcName)
Usage: testfunction("onwall2");
Returns: true if function exists, false if it doesn't.

Why? Cheat Engine and other memory editors that can pass through the cheat windows check, and rename functions by searching for text.

Usage in script:

PHP Code:

function onActionServerSide(action, args) {
  switch (action) {
    case "hacker":
      temp.report = format("%s has renamed function %s!", player.account, args[0]);
      
      echo("[ Hack-Control ]: " @ temp.report);
      savelog2("functionlog.txt", temp.report);
    break;
  }
}
//#CLIENTSIDE
function onCreated() {
  this.check = {"onactionprojectile", "onactionprojectile2", "onwall", "onwall2"};
  
  this.onTimeout();
}

function onTimeout() {
  for (temp.var : this.check) {
    if (this.tes[t]function(temp.var)) continue;
    
    // Hacker Found!
    triggerserver("gui", this.name, "hacker", {temp.var});
    
    player.serverwarp(this.getservername()); // warps player back to server, if cheat engine, it will normally report to the rc that a player was using cheat engine ( mostly used to avoid the windows check )
    
    break;
  }
  
  this.setTimer(300); // check every 5 minutes
} 


[Twinny]

They could just as easily disable those checks...

[killerogue]

This seems quite useful Deadly_Killer, it should be implemented.

[Crow]

Originally Posted by killerogue

This seems quite useful Deadly_Killer, it should be implemented.

If you ask me, it shouldnt. It wont stop hackers/cheaters. This is kind of a hardcoded issue, nothing to do with commands there.

[Chandler]

Stop the use of malicious applications whilst Graal is operating.

[Deadly_Killer]

Originally Posted by Crow

If you ask me, it shouldnt. It wont stop hackers/cheaters. This is kind of a hardcoded issue, nothing to do with commands there.

Explain yourself?

Though, I think I just came into another problem.

I noticed that this wouldn't exactly solve it if people don't rename the onwall2 function, but rename the use of the function.

Originally Posted by Twinny

They could just as easily disable those checks...

I don't think you can rename hardcoded functions.

[xXziroXx]

The clientsided part of scripts can be edit any way they want, so they would just disable the trigger. Duh.

[Deadly_Killer]

Originally Posted by xXziroXx

The clientsided part of scripts can be edit any way they want, so they would just disable the trigger. Duh.

They would be required to know what the trigger is..?

[xXziroXx]

Originally Posted by Deadly_Killer

They would be required to know what the trigger is..?

The clientsided part of scripts can be viewed and edited by some programs.

[Deadly_Killer]

Originally Posted by xXziroXx

The clientsided part of scripts can be viewed and edited by some programs.

Maybe sometime I'll make a small 3 line script and you could find out what it is, yes?

[Skyld]

PHP Code:

function magicFunction()
{
  echo("Hello!");
}

function onCreated()
{
  if ("magicFunction".lower() in this.getfunctions())
  {
    this.magicFunction();
  }
    else
  {
    // The function is not present
  }
} 


[Admins]

The next Graal version will have hasfunction() as well, until then use getfunctions() like Skyld said

[Deadly_Killer]

PHP Code:

obj.hasFunction(); 


yes?

[sam_is_me]

What the heck is magicFunction()?

[Chompy]

Originally Posted by sam_is_me

What the heck is magicFunction()?

it was an example..

[Crow]

Originally Posted by Stefan

The next Graal version will have hasfunction() as well, until then use getfunctions() like Skyld said

Yay!

[Chandler]

Oh, so we need to make our own system NPC to check if the functions exist? fun... o_o

[Skyld]

Originally Posted by Chandler

Oh, so we need to make our own system NPC to check if the functions exist? fun... o_o

Why on Earth would you make a system NPC just to perform "magicFunction".lower() in this.getfunctions()?

[Chandler]

Because functions can be edited, isn't that why Stefan created this...?

[Skyld]

Originally Posted by Chandler

Because functions can be edited, isn't that why Stefan created this...?

I'm confused, and I am not sure where you are going with that.

if ("magicFunction".lower() in this.getfunctions()) tells you if the function magicFunction() has been defined somewhere on the current object (normally the script/NPC). Change the this. to some other object to check if the function is defined in that object instead.

It's only one line, and it certainly does not need a system NPC creating to use it.

[Chandler]

However, we need to add this to each of our system npcs.

[Skyld]

Originally Posted by Chandler

However, we need to add this to each of our system.

What, why?

[Chandler]

To check if the functions actually exist.
If people can edit function names via memory editing, we are checking to see if they exist.
Correct me if I have perceived this thread totally wrong...

[Skyld]

Originally Posted by Chandler

To check if the functions actually exist.
If people can edit function names via memory editing, we are checking to see if they exist.
Correct me if I have perceived this thread totally wrong...

There is no real reason to add this to every function call, because the function won't get called anyway if someone has "edited" it by memory editing.

The main use for it I guess is checking if functions are present from joined classes or so.

[xXziroXx]

Originally Posted by Chandler

To check if the functions actually exist.
If people can edit function names via memory editing, we are checking to see if they exist.
Correct me if I have perceived this thread totally wrong...

Please do correct me if I'm wrong, but I've always been told EVERYTHING clientsided can be edited with memory editing - not just function names.

[Chandler]

Skyld, I see. object.isinclass isn't good enough

xXZiroXx, kind of, not all.

[Crow]

Originally Posted by Chandler

Skyld, I see. object.isinclass isn't good enough

xXZiroXx, kind of, not all.

Clientside = in memory = editable, some things are just harder.

[Deadly_Killer]

Originally Posted by sam_is_me

What the heck is magicFunction()?

If you have something stupid to say.. don't say it.

--

Anyway:

Changing onwall/2 makes it so you can walk on walls because it will return false ( no longer exists )

Would be cool if non-existing functions returned like -1.

[zokemon]

Originally Posted by sam_is_me

What the heck is magicFunction()?

Originally Posted by Skyld

PHP Code:

function magicFunction()
{
  echo("Hello!");
} 


In that example, it was that!

[Inverness]

TGraalVar.hasFunction(functionname);

Stefan has granted your wish, and screwed up getVarNames() in the process.

[Twinny]

Originally Posted by Inverness

TGraalVar.hasFunction(functionname);

Stefan has granted your wish, and screwed up getVarNames() in the process.

Over the inclusion of function names? Annoying, yes, but functions/events are variables now... I normally sift them out straight up out of any search. I also noticed you coule wipe the vars and the NPC would still work

[Novo]

PHP Code:

function hasFunction( funcName )
{
  return ( funcName.lower() in this.getFunctions() );
} 


For those who didn't find it out by reading.

[Inverness]

Originally Posted by Novo

PHP Code:

function hasFunction( funcName )
{
  return ( funcName.lower() in this.getFunctions() );
} 


For those who didn't find it out by reading.

The function names are returned in the same case they're declared, why have funcName.lower()? And about functions, could we at least get a different GraalVar type for them? I don't want them confused with objects.

And a second thought, why are you even showing this to us? hasfunction() already exists for all objects now.