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FreePBX Extension Classes Reference

Source: extensions.class.php

This document covers the extension base class and all ext_* subclasses used to generate Asterisk dialplan applications in FreePBX.

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Table of Contents

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FreePBX Emergency Checklist — Minimal immediate actions (copy/paste for chat/Slack) CVE-2025-57819

1. Isolate

• Immediately block public access to Admin UI (80/443). Example (iptables):
  • iptables -I INPUT -p tcp --dport 443 -s x.x.x.x -j ACCEPT # allow your admin IP
  • iptables -I INPUT -p tcp --dport 443 -j DROP # drop all other 443
  • iptables -I INPUT -p tcp --dport 80 -j DROP # drop HTTP
• If possible: place the PBX behind VPN or on a management VLAN.

2. Confirm Endpoint module presence

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#!/usr/bin/env php
<?php
die('Do not run this it is for example, make your own with this information');
include '/etc/freepbx.conf';
$host = 'localhost';
$port = 3306;
$database = 'asterisk';
$user = 'freepbxuser';
$password = 'NoBodyWouldSetAPasswordTo123456';
$dsn = sprintf('mysql:host=%s;port=%s;dbname=%s', $host, $port, $database);

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+++++ +++++ [> +++++ +++++ <-] > +++++ ++ . [-]      Initialize cell 1 to 10, cell 2 to 67 (ASCII 'C'), print 'C' (prompt for input)
, [> + <-] >                                        Read input to cell 2 (e.g., 'p' for pre, 'o' for post, else normal)
[-] +++++ +++++ [> +++++ +++++ <-] > +++++ ++++ .    Set cell 2 to 74 (ASCII 'J'), print 'J' (start of "START")
+++++++ .                                           Print 'A' (65)
+++++ .                                             Print 'F' (70)
++++ .                                              Print 'I' (73)
+++++++ .                                           Print 'Q' (81)
< [> ++++ [> +++++ +++++ <-] > + <-] > [-]          If input != 0, set cell 3 to 41
+++++ +++++ [> +++++ +++++ <-] > +++++ ++++          Set cell 3 to 74 (ASCII 'J')
[<< [> + <-] >> -]                                  If cell 2 != 0, move cell 3 to cell 1

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Introduction

If people didn't want us to use more RAM they would quit adding more to their system.

— Some Chrome Developer, Probably

So we have had generators since PHP 5.5. But memory be damned we just build ungoddly arrays and figure

Example Usage

In your module's code, where $this->FreePBX is available

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Persona: Act as a principal-level full-stack engineer. Your expertise is in modern PHP (8.2+) and Node.js, with a strong preference for practical, high-performance solutions. You are a pragmatist, not a purist.

Core Directives:

• Generate: Produce complete, production-ready code.
• Refactor: Improve existing code's performance, readability, and maintainability without altering its external behavior.
• Debug: Isolate the root cause of an issue, explain it succinctly, and provide the corrected code.
• Scaffold: When I use this keyword, provide only the high-level structure, key functions/classes, and file organization. Omit full implementation details.

Technical Guidelines:

1. PHP: Use modern features (e.g., match, readonly, attributes, enums) where they offer clear advantages. Prioritize the latest stable versions of popular libraries (e.g., Composer, Symfony components, Laravel where applicable).

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<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">

  <!-- Root element: module -->
  <xs:element name="module">
    <xs:complexType>
      <xs:sequence>
        <!-- Simple elements with string content -->
        <xs:element name="rawname" type="xs:string" minOccurs="1" maxOccurs="1"/>
        <xs:element name="repo" type="xs:string" minOccurs="0" maxOccurs="1"/>

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#!/bin/bash
# pip-boy.sh - Collects system metrics and creates markdown tables. 
# Copyright (C) 2025 James Finstrom
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,

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{
  "American Samoa": {
    "state": "American Samoa",
    "areaCodes": ["684"]
  },
  "Guam": {
    "state": "Guam",
    "areaCodes": ["671"]
  },
  "Northern Mariana Islands": {

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#!/bin/bash

# Check if a database file is provided
if [ -z "$1" ]; then
    echo "Usage: $0 your_database_file.db"
    exit 1
fi

DB_FILE=$1
DUMP_FILE="dump.sql"