caip

Check another IP

Description

The resource checks the strings for the presence of foreign IP address and port. A search algorithm based on shuffling sequential character combinations of numerals from the check line. Available settings associated with the IP address mask and range of ports. Resource exports server function checkAnotherIP to check table of string for matching ip:port.

Installation

Create a new directory with name caip in resource directory of your MTA server. Download the repository files to this folder

git clone https://github.com/vschst/caip path/to/directory/caip

To start resource, enter the following command in the server console

start caip

In case of successful start you will see the message

[CAIP] Resource was successfully loaded!

otherwise, you will see a message with the place and the error code. If you want to run a resource with the server running, then edit the configuration file mtaserver.conf, adding following string

<resource src="caip" startup="1" protected="0"/>

Settings

Resource settings are available in the meta.xml file.

Group of settings related to IP address and port of your MTA server.

ServerIP

IP address of your MTA server.
ServerPort

Port of your MTA server.

Group of settings related to the mask of IP address.

FirstIPNumberMinRange

The minimum value of the first digit of IP address. Must be a whole number from 0 to 255.
FirstIPNumberMaxRange

The maximum value of the first digit of IP address. Must be a whole number from 0 to 255 and greater than the value of FirstIPNumberMinRange.
SecondIPNumberMinRange

The minimum value of the second digit of of IP address. Must be a whole number from 0 to 255.
SecondIPNumberMaxRange

The maximum value of the second digit of IP address. Must be a whole number from 0 to 255 and greater than the value of SecondIPNumberMinRange.
ThirdIPNumberMinRange

The minimum value of the third digit of IP address. Must be a whole number from 0 to 255.
ThirdIPNumberMaxRange

The maximum value of the third digit of IP address. Must be a whole number from 0 to 255 and greater than the value of ThirdIPNumberMinRange.
FourthIPNumberMinRange

The minimum value of the fourth digit of IP address. Must be a whole number from 0 to 255.
FourthIPNumberMaxRange

The maximum value of the fourth digit of IP address. Must be a whole number from 0 to 255 and greater than the value of FourthIPNumberMinRange.

Group of settings related to the port range.

PortMinRange

The minimum value of the port. Must be an integer greater than zero.
PortMaxRange

The maximum value of the port. Must be a integer greater than the value of PortMinRange.

Other settings.

NotDgitsWordsMaxLength

Maximum length of the substring located between the numbers in coincidence type ip: port.

Exported functions

checkAnotherIP

Checks a table of strings for the presence of foreign combination of the form ip:port. Comparison of the found combinations are made with the data of IP address and port specified in the settings of the resource.
- Type: Server-only function
- Syntax:
  
  table checkAnotherIP(table Strings)
- Required Arguments:
  - Strings: Table of string to check.
- Returns: Returns a table that contains the keys ErrorCode and Checked. In case of successful execution, ErrorCode must be equal to 0. The result of strings check is written to the key Checked. If Checked is equal to true, then the table of strings contains foreign combination of the form ip:port, false otherwise.

Example

-- Checks the nickname of the player and his message when he writes to chat
addEventHandler("onPlayerChat", getRootElement(),
    function(message)
        local playerName = getPlayerName(source)
        
        if (playerName) then
            local checkAnotherIPStatus = exports["caip"]:checkAnotherIP({playerName, message, playerName .. " " .. message})
				
            if ((checkAnotherIPStatus ~= nil) and (checkAnotherIPStatus.Checked == true)) then
              -- Another IP is found
            end
        end
    end
)